CN112929796A - Head-mounted device - Google Patents
Head-mounted device Download PDFInfo
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- CN112929796A CN112929796A CN202110213307.XA CN202110213307A CN112929796A CN 112929796 A CN112929796 A CN 112929796A CN 202110213307 A CN202110213307 A CN 202110213307A CN 112929796 A CN112929796 A CN 112929796A
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- 230000005855 radiation Effects 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 11
- 230000002093 peripheral effect Effects 0.000 description 11
- 210000005069 ears Anatomy 0.000 description 7
- 239000012141 concentrate Substances 0.000 description 4
- 239000004984 smart glass Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
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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
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C11/00—Non-optical adjuncts; Attachment thereof
- G02C11/10—Electronic devices other than hearing aids
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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
- H04R5/00—Stereophonic arrangements
- H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
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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
- H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
- H04R2205/024—Positioning of loudspeaker enclosures for spatial sound reproduction
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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
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/01—Hearing devices using active noise cancellation
Abstract
The invention discloses a head-mounted device which comprises an ear-near wearing part, a bass module and a treble module, wherein the ear-near wearing part is provided with a first low sound hole, a second low sound hole, a first high sound hole and a second high sound hole. The bass module is arranged in the ear-near wearing part and radiates sound waves with opposite phases outwards through the first bass hole and the second bass hole. The high pitch module is located in the portion is worn to the nearly ear, the high pitch module passes through first high pitch hole with the sound wave of the opposite phase place of second high pitch hole external radiation. According to the technical scheme, the risk of sound leakage of the head-mounted equipment can be reduced, so that the privacy protection capability is improved.
Description
Technical Field
The invention relates to the technical field of wearable equipment, in particular to head-mounted equipment.
Background
At present like in wearing equipment such as AR equipment, VR equipment and intelligent glasses, the sound production system all adopts the mode of putting outward, however when user broadcast sound is great, sound leaks easily for the sound of equipment broadcast also can be heard to people around, is unfavorable for protecting the privacy, disturbs other people easily simultaneously.
Disclosure of Invention
The invention mainly aims to provide a head-mounted device, aiming at reducing the risk of sound leakage of the head-mounted device and improving the privacy protection capability.
In order to achieve the above object, the present invention provides a head-mounted device, including:
a near-ear wearing part provided with a first low sound hole, a second low sound hole, a first high sound hole and a second high sound hole;
the bass module is arranged in the ear-near wearing part and radiates sound waves with opposite phases outwards through the first bass hole and the second bass hole; and
the high pitch module is located in the portion is worn to the nearly ear, the high pitch module passes through first high pitch hole with the sound wave of the opposite phase place of second high pitch hole external radiation.
Optionally, the bass module includes a woofer, the woofer is disposed in the ear-near wearing portion and has a first front sound cavity and a first rear sound cavity, the first bass hole is communicated with the first front sound cavity, and the second bass hole is communicated with the first rear sound cavity.
Optionally, the first bass vent is disposed on a side of the woofer close to the treble module.
Optionally, the head-mounted device further comprises a processor module, the processor module is integrally provided with a low-pass filter, and the low-pass filter is electrically connected with the bass module; or, the head-mounted device further comprises a processor module and a low-pass filter, the low-pass filter and the processor module are arranged in a split mode, and the processor module is electrically connected with the woofer through the low-pass filter.
Optionally, the tweeter module includes a tweeter, the tweeter is located in the ear-proximal wearing portion and has a second front sound cavity and a second rear sound cavity, the first tweeter hole is communicated with the second front sound cavity, and the second tweeter hole is communicated with the second rear sound cavity.
Optionally, the high pitch module includes first tweeter and second tweeter, first tweeter passes through first tweeter hole normal phase sound wave of external radiation, second tweeter passes through second tweeter hole reverse phase sound wave of external radiation.
Optionally, the head-mounted apparatus is still including locating the processor module of equipment main part, the preceding acoustic cavity of first high pitch loudspeaker with first high pitch hole intercommunication, the preceding acoustic cavity of second high pitch loudspeaker with second high pitch hole intercommunication, first high pitch loudspeaker with second high pitch loudspeaker electricity is connected the electrode of processor module is opposite setting.
Optionally, a distance between the first and second loud holes is no less than 5mm and no greater than 15 mm.
Optionally, the earmuff-wearing part has an inner side surface for facing a wearer, at least one of the first low-sound hole, the second low-sound hole, the first loud-sound hole and the second loud-sound hole being provided on the inner side surface.
Optionally, the earbud-fitting portion is adapted to be fitted over a wearer's ear and has a lower side facing the wearer's ear, at least one of the first low-sound hole, the second low-sound hole, the first loud-sound hole, and the second loud-sound hole being provided in the lower side.
Optionally, the headset includes two the portion of wearing of near ear, each the portion of wearing of near ear all is equipped with the bass module with the treble module.
According to the technical scheme, the near-ear wearing part is provided with the first low sound hole, the second low sound hole, the first high sound hole and the second high sound hole, the bass module radiates sound waves with opposite phases outwards through the first low sound hole and the second low sound hole, and the treble module radiates sound waves with opposite phases outwards through the first high sound hole and the second high sound hole. So make bass module during operation, bass module is to the people of user's peripheral position, and the sound propagation belongs to the plane wave, and bass module is opposite through the outside radiating sound wave phase place in first bass hole and second bass hole, can offset the sound wave of user's peripheral position. And high pitch module during operation, the sound wave phase place that high pitch module outwards radiates through first high pitch hole and second high pitch hole is also opposite to can offset the sound wave of the peripheral higher frequency of user. Therefore, when the user uses the head-mounted equipment, the sound of the user hearing the head-mounted equipment can be weakened, the risk of sound leakage of the head-mounted equipment is reduced, and the privacy protection capability of the head-mounted equipment is greatly improved. To the user, the nearly ear is worn the portion and is nearer apart from the user ear, and bass module and high pitch module are very little at the sound wave that the user ear department offset, so can guarantee that the user clearly hears the sound that high pitch module and bass module sent, need not wear the portion with nearly ear and fill in the user ear, can reduce user ear fatigue.
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 head-mounted device according to an embodiment of the present invention;
FIG. 2 is a sectional view of the ear-proximal wearing portion of FIG. 1;
FIG. 3 is a sound pressure level simulation effect of the head set of FIG. 1, wherein the solid line represents the sound pressure level at the user's ear and the dashed line represents the sound pressure level around the user;
fig. 4 is a schematic sectional view of a head-mounted device of the present invention near the ear.
The reference numbers illustrate:
reference numerals | Name (R) | Reference numerals | Name (R) |
10 | Ear-proximal wearing |
18 | Second rear |
11 | |
20 | |
12 | |
30 | |
13 | First |
31 | First |
14 | Second |
32 | Second |
15 | First front |
40 | |
16 | First rear |
50 | Wearing |
17 | Second front acoustic cavity |
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 if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. 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.
The invention provides a head-mounted device which can be an AR device, a VR device, intelligent glasses or earphones and the like.
In an embodiment of the present invention, referring to fig. 1 to 3, the head-mounted device includes an ear-near wearing portion 10, a bass module 20, and a treble module, wherein the ear-near wearing portion 10 is provided with a first bass hole 11, a second bass hole 12, a first treble hole 13, and a second treble hole 14. The bass module 20 is provided in the ear-near wearing portion 10, and the bass module 20 radiates sound waves of opposite phases outward through the first bass hole 11 and the second bass hole 12. The treble module 30 is disposed in the ear-proximal wearing portion 10, and the treble module 30 radiates sound waves of opposite phases outward through the first and second loud sound holes 13 and 14.
The ear wearing part 10 refers to a part of the head-mounted device near the ears of the user when the user wears the head-mounted device, for example, when the head-mounted device is a pair of smart glasses, the ear wearing part 10 is located on the side of the smart glasses and located at a part of the side of the smart glasses corresponding to the ears of the user. When the head-mounted device is an AR device or a VR device, the ear-near wearing portion 10 is located at a portion of the AR device or the VR device near the user's ear.
In this embodiment, the head mount includes two wearing brackets 50 and a mounting bracket 40 connecting the two wearing brackets 50. The mounting bracket 40 may be mounted with a lens, an AR component, a VR component, or only a connection structure, etc., which is not limited in the present invention.
The wearing bracket 50 is provided with at least one ear-near wearing portion 10, that is, the head-mounted device may be provided with one ear-near wearing portion 10, the ear-near wearing portion 10 is provided with the bass module 20 and the treble module 30, and when the user wears the head-mounted device, the ear-near wearing portion 10 corresponds to one of the ears of the user. The head-mounted device may also be provided with two ear wearing portions 10, that is, two wearing brackets 50 are respectively provided with one ear wearing portion 10, each ear wearing portion 10 is provided with a bass module 20 and a treble module 30, and when the user wears the head-mounted device, the two ear wearing portions 10 correspond to two ears of the user one to one. When two ear mount portions 10 are provided, the bass module 20 may be provided in one ear mount portion 10 and the treble module 30 may be provided in the other ear mount portion 10. The frequency division frequency points F of the bass module 20 and the treble module 30 are selected to be between 800 Hz and 1000Hz, the bass module 20 plays signals below F, and the treble module 30 plays signals above F.
The present invention has a first low sound hole 11, a second low sound hole 12, a first high sound hole 13 and a second high sound hole 14 formed in the ear-near wearing part 10, a bass module 20 radiating sound waves of opposite phases outward through the first low sound hole 11 and the second low sound hole 12, and a treble module 30 radiating sound waves of opposite phases outward through the first high sound hole 13 and the second high sound hole 14. Therefore, when the bass module 20 works, sound propagation of the bass module 20 belongs to plane waves for people around the user, and the phases of the sound waves radiated outwards by the bass module 20 through the first bass hole 11 and the second bass hole 12 are opposite, so that the sound waves around the user can be cancelled. When the treble module 30 is in operation, the phases of the sound waves radiated outwards from the treble module 30 through the first and second loud holes 13 and 14 are also opposite, so that the sound waves with higher frequencies around the user can be cancelled out, as shown in the simulation result shown in fig. 3 (the sound pressure level around the user is 1m away from the user in the figure), the sound pressure around the user is greatly attenuated. Therefore, when the user uses the head-mounted equipment, the sound of the user hearing the head-mounted equipment can be weakened, the risk of sound leakage of the head-mounted equipment is reduced, and the privacy protection capability of the head-mounted equipment is greatly improved. For the user, the ear wearing part 10 is closer to the ear of the user, and the sound waves offset by the bass module 20 and the treble module 30 at the ear of the user are very small, so that the user can be ensured to clearly hear the sound emitted by the treble module 30 and the bass module 20, the ear wearing part 10 is not required to be plugged into the ear of the user, and the ear fatigue of the user can be reduced.
In one embodiment, the bass module 20 includes a woofer disposed in the ear-near wearing portion 10 and having a first front sound cavity 15 and a first rear sound cavity 16, the first bass port 11 communicating with the first front sound cavity 15, and the second bass port 12 communicating with the first rear sound cavity 16. Specifically, one side of the diaphragm departing from the voice coil in the woofer is communicated with the first front sound cavity 15, and one side of the diaphragm facing the voice coil is communicated with the first rear sound cavity 16. One woofer may be provided in the ear-near worn portion 10 in this way, and two low-frequency sound waves of opposite phases are radiated outward by one woofer, whereby the number of woofers in the ear-near worn portion 10 can be reduced, and the size of the ear-near worn portion 10 and the cost of the head set can be reduced. Of course, in other embodiments, two or more woofers may be provided in the ear-near wearing portion 10.
When the woofer is sounding, the sound waves radiated outward from the first front sound cavity 15 and the first low sound hole 11 are mainly used for being conducted to the ear of the user, and in order to ensure the listening effect of the user, in one embodiment, the first low sound hole 11 is disposed on a side of the woofer close to the tweeter module 30. So make first low sound hole 11 and high pitch module 30 comparatively concentrate to guarantee that first low sound hole 11 and high pitch module 30 can concentrate and be close to user's ear, make the sound that the user can clearly hear woofer and high pitch module 30 and send. Of course, in other embodiments, the first woofer hole 11 may be provided on a side of the woofer away from the tweeter module 30.
In an embodiment, the distance between the first and second low sound holes 11, 12 is larger than the distance between the first and second loud sound holes 13, 14. Specifically, the smaller the distance between the first and second low sound holes 11 and 12 is, the smaller the distance between the sound waves radiated outward from the first and second low sound holes 11 and 12 and the user at the user peripheral cancellation position is, and conversely, the larger the distance between the first and second low sound holes 11 and 12 is, the larger the distance between the sound waves radiated outward from the first and second low sound holes 11 and 12 and the user at the user peripheral cancellation position is. Similarly, the smaller the distance between the first loud hole 13 and the second loud hole 14 is, the smaller the distance between the sound wave radiated outward from the first loud hole 13 and the second loud hole 14 and the user at the user peripheral offset position is, and conversely, the larger the distance between the first loud hole 13 and the second loud hole 14 is, the larger the distance between the sound wave radiated outward from the first loud hole 13 and the second loud hole 14 and the user at the user peripheral offset position is.
Hereinafter, for convenience of description, the distance of the sound waves radiated outward from the first and second low sound holes 11 and 12 from the user at the user's peripheral cancellation position is defined as a "bass cancellation distance", and the distance of the sound waves radiated outward from the first and second loud sound holes 13 and 14 from the user at the user's peripheral cancellation position is defined as a "treble cancellation distance".
Because the bass module sends out be the low frequency sound wave, the high pitch module sends out be the high frequency sound wave, and the wavelength of low frequency sound wave is greater than the wavelength of high frequency sound wave. Therefore, when the distance between the first low sound hole 11 and the second low sound hole 12 is equal to the distance between the first high sound hole 13 and the second high sound hole 14, the high-pitch offset distance is larger than the low-pitch offset distance, so that the low-frequency sound waves are offset in a near range of the user, the offset effect of the high-frequency sound waves in the near range of the user is poor, the possibility that other people in the near range of the user hear the high-pitch sound waves is increased, and the privacy protection effect is poor.
When the distance between the first low sound hole 11 and the second low sound hole 12 is larger than the distance between the first high sound hole 13 and the second high sound hole 14, the high-pitch offset distance and the low-pitch offset distance are smaller or approximately equal, so that the offset positions of the high-frequency sound waves and the low-frequency sound waves around a user can be close, and the privacy protection effect is improved. Even the high pitch module produces the low frequency sound wave, at the in-process of external radiation, the low frequency sound wave that the high pitch module produced also can offset in advance high frequency sound wave, therefore the low frequency sound wave that the high pitch module produced can be ignored. Of course, in other embodiments, cancellation of the far acoustic wave may be achieved in other ways.
In one embodiment, the distance between the first and second low sound holes 11 and 12 is not less than 5cm and not more than 10 cm. It should be understood that when the distance between the first and second low sound holes 11 and 12 is too large, the cancellation position of the sound waves radiated outward from the first and second low sound holes 11 and 12 is far from the user, which may result in poor cancellation of the low frequency sound waves in a near range of the user, increasing the possibility that others in the near range of the user hear the sound. If the distance between the first and second low sound holes 11 and 12 is too small, the sound waves radiated from the first and second low sound holes 11 and 12 may be cancelled when being transmitted to the ears of the user, thereby reducing the sound heard by the user. When the distance between the first low sound hole 11 and the second low sound hole 12 is arranged between 5cm and 10cm, the sound waves radiated outwards from the first low sound hole 11 and the second low sound hole 12 can be offset within a certain range around a user, the sound of the head-mounted equipment can be clearly heard by the user, the offset of the sound can be achieved in a relatively close range around the user, the risk of sound leakage of the head-mounted equipment is further reduced, and the privacy protection capability is improved. Wherein, the distance between the first low sound hole 11 and the second low sound hole 12 may be 1.5cm, 2cm, 2.5cm, 3cm, 3.5cm, 4cm, 4.5cm, 5cm, 5.5cm, 6cm, 6.5cm, 7cm, 7.5cm, 8cm, 8.5cm, 9cm, 9.5cm, 10cm, 11cm, 12cm, 13cm, 14cm, 15cm, and so on. Preferably, the first and second bass ports 11 and 12 are spaced apart by between 5cm and 10 cm. Of course, in other embodiments, the distance between the first and second low sound holes 11 and 12 may be less than 5cm, or greater than 10 cm.
In one embodiment, the head-mounted device further includes a processor module, and the processor module is integrally provided with a low-pass filter, and the low-pass filter is electrically connected with the bass module 20. That is, the low-pass filter is integrated in the digital signal processing module of the processor module, so that only low-frequency signals are transmitted to the bass module 20, the bass module 20 only generates low-frequency sound waves, and the low-frequency sound waves are offset at the peripheral position of a user.
In another embodiment, the head-mounted device further comprises a processor module and a low-pass filter, wherein the low-pass filter is arranged separately from the processor module, and the processor module is electrically connected with the woofer through the low-pass filter. Therefore, the low-pass filter is realized by hardware, and the structure of the digital signal processing module can be simplified.
The structure of the tweeter module 30 is various, for example, referring to fig. 1 and 2, in one embodiment, the tweeter module 30 includes a tweeter disposed in the ear-proximal wearing portion 10 and having a second front sound chamber 17 and a second rear sound chamber 18, the first tweeter hole 13 communicates with the second front sound chamber 17, and the second tweeter hole 14 communicates with the second rear sound chamber 18. Specifically, one side of the diaphragm, which deviates from the voice coil, in the high pitch loudspeaker is communicated with the second front sound cavity 17, and one side of the diaphragm, which faces the voice coil, is communicated with the second rear sound cavity 18. In this way, one tweeter may be provided in the ear-proximal wearing portion 10, and two high-frequency sound waves of opposite phases are radiated to the outside through the one tweeter, so that the number of tweeters in the ear-proximal wearing portion 10 can be reduced, thereby simplifying the structure of the ear-proximal wearing portion 10 and reducing the cost of the head-mounted device.
Referring to fig. 1 and 4, in another embodiment, the tweeter module 30 includes a first tweeter 31 and a second tweeter 32, the first tweeter 31 radiates positive-phase sound waves outwards through the first tweeter 13, and the second tweeter 32 radiates inverse-phase sound waves outwards through the second tweeter 14. So through setting up first tweeter 31 and second tweeter 32 and outwards radiating normal phase sound wave and reverse phase sound wave respectively, can enough guarantee that the high frequency sound wave around the user can offset each other, weaken the people around the user and hear the sound that the head-mounted apparatus sent, can also guarantee that the user can clearly hear the sound that the head-mounted apparatus sent. In other embodiments, a third loud speaker, etc. may also be provided.
Further, in an embodiment, the head-mounted device further includes a processor module disposed in the device body, the front sound cavity of the first tweeter 31 is communicated with the first tweeter hole 13, the front sound cavity of the second tweeter 32 is communicated with the second tweeter hole 14, and the electrodes of the processor module electrically connected to the first tweeter 31 and the second tweeter 32 are disposed oppositely. Specifically, the front sound cavity of the first tweeter 31 is located at one side of the first tweeter 31 where the diaphragm deviates from the voice coil, and the front sound cavity of the second tweeter 32 is located at one side of the second tweeter 32 where the diaphragm deviates from the voice coil. The positive pole of first tweeter 31 and the negative pole of second tweeter 32 are all electrically connected with the positive pole (negative pole) of processor module output signal, and the negative pole of first tweeter 31 and the positive pole of second tweeter 32 are all electrically connected with the negative pole (positive pole) of processor module output signal. When the processor module outputs audio signals to the first tweeter 31 and the second tweeter 32, sound waves radiated outwardly by the first tweeter 31 through the first loud hole 13 are made to be opposite in phase to sound waves radiated outwardly by the second tweeter 32 through the second loud hole 14. This allows sound waves of both the first tweeter 31 and the second tweeter 32 to radiate outward from the front sound chamber, thereby ensuring a user's listening effect.
In one embodiment, the rear sound chamber of the first tweeter 31 and the rear sound chamber of the second tweeter 32 are both closed chambers, which reduces the outward radiation of the rear sound chambers of the first and second tweeters 31 and 32. Of course, in other embodiments, the rear sound chamber of first tweeter 31 and the rear sound chamber of second tweeter 32 may both be in communication with the outside.
Referring to fig. 1 and 2, or referring to fig. 1 and 4, in an embodiment, a distance between the first loud sound hole 13 and the second loud sound hole 14 is not less than 5mm and not more than 15 mm. It should be understood that when the distance between the first loud hole 13 and the second loud hole 14 is too large, the cancellation position of the sound waves radiated outward from the first loud hole 13 and the second loud hole 14 is far away from the user, which may result in poor cancellation effect of the low frequency sound waves in the near range of the user, and increase the possibility that others in the near range of the user hear the sound. If the distance between the first and second loud sound holes 13 and 14 is too small, the sound waves radiated from the first and second loud sound holes 13 and 14 may be cancelled when being transmitted to the ears of the user, thereby reducing the sound heard by the user. When the distance between the first high sound hole 13 and the second high sound hole 14 is arranged between 5cm and 10cm, the sound waves radiated outwards from the first high sound hole 13 and the second high sound hole 14 can be offset within a certain range around the user, the sound of the head-mounted equipment can be clearly heard by the user, the offset of the sound can be realized in a close range around the user, the risk of sound leakage of the head-mounted equipment is further reduced, and the privacy protection capability is improved. Wherein, the distance between the first high sound hole 13 and the second high sound hole 14 can be 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm and the like, and can be up to 30mm, and preferably, the distance between the first high sound hole 13 and the second high sound hole 14 is between 5mm and 15 mm.
At first high sound hole 13 and second high sound hole 14's interval not less than 5mm, and be not more than 15mm, and first low sound hole 11 and second low sound hole 12's interval is not less than 5cm, and when being not more than 10cm, can guarantee better that the high pitch offset distance and bass offset distance differ less or roughly equal to can guarantee that the offset position of high frequency sound wave and low frequency sound wave around the user is comparatively close, further promote the privacy protection effect.
The first low sound hole 11, the second low sound hole 12, the first loud sound hole 13 and the second loud sound hole 14 are arranged in various positions, for example, in one embodiment, the ear-near wearing portion 10 has an inner side surface for facing the wearer, and at least one of the first low sound hole 11, the second low sound hole 12, the first loud sound hole 13 and the second loud sound hole 14 is arranged on the inner side surface. Specifically, the ear-proximal worn portion 10 further has an outer side surface facing the inner side surface, that is, the inner side surface faces the head of the wearer and the outer side surface faces away from the head of the user when the user wears the head mount apparatus. When the head set is worn, the inner surface of the ear-worn portion 10 does not completely fit the surface of the head of the wearer, and a gap is formed. When locating at least one in first low sound hole 11, second low sound hole 12, first high sound hole 13 and the second high sound hole 14 inboard face, the sound wave can be followed the clearance radiation between medial surface and the wearer's head surface to the wearer's ear, so can reduce the sound wave and outwards radiate, guarantee that the user listens to the effect, promote the user and listen to the definition. In this embodiment, the first low sound hole 11, the second low sound hole 12, the first loud sound hole 13, and the second loud sound hole 14 are all provided on the inner side surface. Of course, in other embodiments, the first low sound hole 11 and the first high sound hole 13 may be provided on the inner side surface, or the second low sound hole 12 and the second high sound hole 14 may be provided on the inner side surface, and so on.
Further, in another embodiment, the earbud-wearing portion 10 is adapted to be worn over a wearer's ear and has a lower side facing the wearer's ear, with at least one of the first low sound hole 11, the second low sound hole 12, the first loud sound hole 13, and the second loud sound hole 14 being provided on the lower side. Particularly, the downside is located between medial surface and the lateral surface, through with first low sound hole 11, second low sound hole 12, the downside of nearly ear portion of wearing 10 is located to at least one in first high sound hole 13 and the second high sound hole 14, so make the sound wave that the play sound hole of locating the downside sent can directly radiate towards the ear of wearing person, can also reduce first low sound hole 11, second low sound hole 12, first high sound hole 13 and second high sound hole 14 because of nearly ear portion of wearing 10 laminating wearing person's head and the possibility of being blockked up, guarantee the user and listen to the effect, promote the user and listen to the definition. In this embodiment, the first low sound hole 11, the second low sound hole 12, the first loud sound hole 13 and the second loud sound hole 14 are all provided on the lower side surface. Of course, in other embodiments, only the first low sound hole 11 and the first high sound hole 13 may be provided on the lower side, or only the second low sound hole 12 and the second high sound hole 14 may be provided on the lower side, etc.
In an embodiment, the head mount comprises two near-ear wearing portions 10, each near-ear wearing portion 10 being provided with a bass module 20 and a treble module 30. Thus, when the user uses the head-mounted device, the two near-ear wearing parts 10 can be in one-to-one correspondence with the two ears of the user, so as to ensure the listening effect of the user.
In an embodiment, first high sound hole 13 and second high sound hole 14 are at the direction interval distribution of perpendicular to high pitch module 30 and bass module 20 orientation of arranging, so make first high sound hole 13, second high sound hole 14 and first low sound hole 11 comparatively concentrate, thereby guarantee first high sound hole 13, second high sound hole 14 and first low sound hole 11 can concentrate near user's ear, make the user can clearly hear the sound that bass module 20 and treble module 30 sent, be favorable to reducing the volume of bass module 20 and treble module 30, thereby further reduce the possibility that the sound that the peripheral other people of user heard the head mounted equipment broadcast.
In one embodiment, the bass module 20 is disposed between the treble module 30 and the mounting bracket 40, it should be understood that when the mounting bracket 40 is worn on the front side of the user (for example, the head-mounted device is an AR device, a VR device or smart glasses), the ear wearing portion 10 is close to the rear end of the wearing bracket 50 (the end of the wearing bracket 50 away from the mounting bracket 40), the mounting space between the ear wearing portion 10 and the mounting bracket 40 on the wearing bracket 50 is relatively large, and when the bass module 20 is disposed on this portion, the mounting space of the wearing bracket 50 can be fully utilized, the space utilization rate of the wearing bracket 50 is improved, and the structure of the wearing bracket 50 is made more compact.
The above description is only a preferred embodiment of the present invention, and is 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 (10)
1. A head-mounted device, comprising:
a near-ear wearing part provided with a first low sound hole, a second low sound hole, a first high sound hole and a second high sound hole;
the bass module is arranged in the ear-near wearing part and radiates sound waves with opposite phases outwards through the first bass hole and the second bass hole; and
the high pitch module is located in the portion is worn to the nearly ear, the high pitch module passes through first high pitch hole with the sound wave of the opposite phase place of second high pitch hole external radiation.
2. The headset of claim 1 wherein the bass module comprises a woofer disposed within the earbud-wearing portion and having a first front acoustic chamber and a first rear acoustic chamber, the first bass port being in communication with the first front acoustic chamber and the second bass port being in communication with the first rear acoustic chamber.
3. The headset of claim 2 wherein the first bass vent is provided on a side of the woofer proximate the tweeter module.
4. The headset of claim 2, further comprising a processor module integrally provided with a low pass filter electrically connected to the bass module;
or, the head-mounted device further comprises a processor module and a low-pass filter, the low-pass filter and the processor module are arranged in a split mode, and the processor module is electrically connected with the woofer through the low-pass filter.
5. The headset of claim 1, wherein the tweeter module comprises a tweeter disposed within the earwear and having a second front acoustic chamber and a second rear acoustic chamber, the first tweeter port in communication with the second front acoustic chamber and the second tweeter port in communication with the second rear acoustic chamber.
6. The headset of claim 1, wherein the tweeter module includes a first tweeter and a second tweeter, the first tweeter radiating normal phase sound waves outward through the first tweeter aperture, the second tweeter radiating reverse phase sound waves outward through the second tweeter aperture.
7. The headset of claim 6 further including a processor module disposed in the device body, the front acoustic cavity of the first tweeter communicating with the first tweeter aperture, the front acoustic cavity of the second tweeter communicating with the second tweeter aperture, the electrodes of the first tweeter and the second tweeter electrically connected to the processor module being oppositely disposed.
8. The headgear of any one of claims 1-7, wherein the earwear portion has an inner side surface for facing a wearer, at least one of the first low sound hole, the second low sound hole, the first loud sound hole, and the second loud sound hole being located on the inner side surface.
9. The headgear of any one of claims 1-7, wherein the earwear portion is adapted to be worn over a wearer's ear and has an underside facing the wearer's ear, at least one of the first low sound hole, the second low sound hole, the first loud sound hole, and the second loud sound hole being provided in the underside.
10. The head-mounted apparatus according to any one of claims 1 to 7, wherein the head-mounted apparatus comprises two of the ear-proximal wearing portions, each of the ear-proximal wearing portions being provided with the bass module and the treble module.
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