CN216795277U - Bone acoustic conduction speaker and earphone - Google Patents
Bone acoustic conduction speaker and earphone Download PDFInfo
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- CN216795277U CN216795277U CN202220165286.9U CN202220165286U CN216795277U CN 216795277 U CN216795277 U CN 216795277U CN 202220165286 U CN202220165286 U CN 202220165286U CN 216795277 U CN216795277 U CN 216795277U
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Abstract
The embodiment of the utility model provides a bone sound conduction loudspeaker and an earphone, wherein the bone sound conduction loudspeaker comprises an elastic sheet, wherein the solid position of the center of the elastic sheet is at least partially connected with the outer bottom surface of a magnetic circuit component; an eardrum having a coil assembly coupled thereto, the coil assembly being at least partially positioned in a magnetic field provided by the magnetic circuit assembly, the coil assembly being configured to generate a linear vibration relative to the magnetic circuit assembly under a magnetic field force when receiving an audio signal; the support is provided with openings at two ends, the support is configured to be connected with the periphery of the tympanic membrane at the opening at one end, and the periphery of the elastic sheet is connected at the opening at the other end. The vibration area of the spring plate is increased by connecting at least part of the solid spring plate to the bottom of the magnetic circuit component, so that vibration and conduction vibration are facilitated, and simultaneously, according to the physical characteristics of object vibration, due to the increase of the vibration area, the support of the low-frequency vibration is better, so that the low-frequency response frequency of the loudspeaker is lower.
Description
Technical Field
The utility model relates to the technical field of audio equipment, in particular to a bone-acoustic conduction loudspeaker and an earphone.
Background
Generally, a person can hear a sound because air transmits vibration to the eardrum through the external auditory meatus, and the vibration formed through the eardrum drives the auditory nerve of the person, thereby sensing the vibration of the sound, which is air conduction. When the bone conduction speaker in the market works, the bone conduction speaker can be generally transmitted to the auditory nerve of a person through the skin, subcutaneous tissues and bones of the person, so that the person can hear the sound.
Loudspeakers, as basic electronic sound generating elements, are also important components of sound generating devices, such as headphones, where the structure of the loudspeaker directly affects the quality of the audio it emits.
However, at present, the elastic sheet of the bone conduction speaker or the bone sound conduction speaker is generally sleeved on the magnetic circuit component, so that the vibration area of the elastic sheet is reduced, and the vibration is not favorable; thus making the vibrations it emits and the low frequencies of the air conduction sound waves insufficient.
SUMMERY OF THE UTILITY MODEL
In view of the problems, the present invention has been made to provide a bone-acoustic conduction speaker and earphone that overcomes or at least partially solves the problems;
some embodiments of the present application disclose a bone-acoustic conduction speaker, comprising:
the solid position of the center of the elastic sheet is at least partially connected with the outer bottom surface of the magnetic circuit component;
an eardrum having a coil assembly coupled thereto, the coil assembly being at least partially positioned in a magnetic field provided by the magnetic circuit assembly, the coil assembly being configured to produce relative motion with respect to the magnetic circuit assembly under magnetic field forces when an audio signal is received;
the support is provided with openings at two ends, the support is configured to be connected with the periphery of the tympanic membrane at one opening, and the periphery of the elastic sheet is connected with the opening at the other end.
Preferably, the magnetic circuit assembly comprises:
the outer bottom surface of the U-shaped cup is the outer bottom surface of the magnetic circuit component; the bottom surface of the interior of the U cup is concentrically connected with one end of the magnet;
the coil assembly is at least partially located in a gap between the interior of the U-cup and the side of the magnet.
Preferably, the magnetic circuit assembly further comprises: a pole piece concentrically connected to the other end of the magnet; the diameter of the pole piece is equal to or larger than the diameter of the bottom surface of the magnet;
the coil assembly is at least partially located in a gap between the inside of the U-cup and the side of the pole piece.
Preferably, the tympanic membrane comprises a fold and a membrane;
the outer periphery of the diaphragm is connected with the inner periphery of the folded edge and connected to one end of the coil assembly;
the periphery of the folded edge is connected to an opening at one end of the bracket.
Preferably, the elastic sheet comprises a hardware sheet, a plastic sheet and a PVC sheet.
Preferably, the space between the center and the periphery of the elastic sheet is hollowed.
Preferably, the device further comprises a shell;
the periphery of the support is connected to the inner wall of the shell, so that the shell forms a front cavity at the film-blowing end and a rear cavity at the elastic sheet end.
Preferably, the housing is a split type, which comprises a rear shell and a front shell;
the rear shell corresponds to the rear cavity, and the front shell corresponds to the front cavity.
Preferably, the front shell is provided with at least one sound hole configured to maintain a high frequency tuning frequency between the bone-acoustic conduction speaker and the front cavity.
Preferably, at least one air hole is formed in the side surface of the rear shell; the air vent is configured to maintain a low frequency tuning frequency between the bone conduction speaker and the back cavity.
A bone-acoustic conduction speaker, comprising:
the center of the elastic sheet is at least partially solid, and the solid position of the center of the elastic sheet is at least partially connected with the outer bottom surface of the magnetic circuit component;
a tympanic membrane having a coil assembly coupled thereto, the coil assembly being at least partially disposed in a magnetic field provided by the magnetic circuit assembly, the coil assembly being configured to produce relative movement with respect to the magnetic circuit assembly under magnetic field forces when an audio signal is received;
the support is provided with openings at two ends, the support is configured in a manner that one opening at one end is connected with the periphery of the tympanic membrane, and the opening at the other end is connected with the periphery of the elastic sheet;
the periphery of the support is connected to the inner wall of the shell, so that the shell forms a front cavity at the film-blowing end and a rear cavity at the elastic piece end.
A bone-sound conduction earphone comprises a wearing piece and a sound-producing piece connected with the wearing piece;
the wearing piece is an ear pendant or a neck pendant or a head-wearing piece;
the bone sound conduction loudspeaker is arranged on the sound producing component.
The utility model has the following advantages:
in the embodiment of the utility model, the solid position of the center of the elastic sheet is at least partially connected with the outer bottom surface of the magnetic circuit component; an eardrum having a coil assembly coupled thereto, the coil assembly being at least partially positioned in a magnetic field provided by the magnetic circuit assembly, the coil assembly being configured to generate a linear vibration relative to the magnetic circuit assembly under a magnetic field force when an audio signal is received; the support is provided with openings at two ends, the support is configured in a manner that one opening at one end is connected with the periphery of the tympanic membrane, and the opening at the other end is connected with the periphery of the elastic sheet; the vibration area of the spring plate is increased by connecting at least part of the solid spring plate to the bottom of the magnetic circuit component, so that vibration and conduction vibration are facilitated, and simultaneously, according to the physical characteristics of object vibration, due to the increase of the vibration area, the support of the low-frequency vibration is better, so that the low-frequency response frequency of the loudspeaker is lower.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a bone conduction speaker according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a spring structure in a bone-acoustic conduction speaker according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of a bone conduction speaker according to an embodiment of the present invention.
In the drawings: 101. a rear housing; 102. a front housing; 103. a support; 201. a U cup; 202. pole pieces; 301. a magnet; 401 spring plate; 501. a membrane; 601. a sound hole; 701. a coil assembly; 801. and (4) air holes.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all 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, in the present application, the bone conduction speaker is a new speaker type, and has no specific name in the field, and is different from the bone conduction alone that only vibration is emitted without directly emitting sound, and is also different from the common speaker that only air is driven to vibrate and sound; the bone sound conduction speaker of this application realizes bone conduction speaker's vibration and promotion air vibration sound production in same speaker.
Referring to fig. 1 and 3, a bone conduction speaker according to an embodiment of the present invention is shown, including: the solid position in the center of the elastic sheet 401 is at least partially connected with the outer bottom surface of the magnetic circuit assembly; an eardrum to which a coil assembly 701 is connected, the coil assembly 701 being at least partially located in a magnetic field provided by the magnetic circuit assembly, the coil assembly 701 being configured to generate relative motion with respect to the magnetic circuit assembly under a magnetic field force when receiving an audio signal; the support 103 is provided with two open ends, and the support 103 is configured to be connected with the periphery of the tympanic membrane at one open end and connected with the periphery of the elastic sheet 401 at the other open end.
In the above embodiment, the solid position passing through the center of the spring plate 401 is at least partially connected to the outer bottom surface of the magnetic circuit assembly; an eardrum to which a coil assembly 701 is connected, the coil assembly 701 being at least partially located in a magnetic field provided by the magnetic circuit assembly, the coil assembly 701 being configured to generate relative motion with respect to the magnetic circuit assembly under a magnetic field force when receiving an audio signal; the support 103 is provided with two open ends, the support 103 is configured to be connected with the periphery of the tympanic membrane at one open end, and the periphery of the elastic sheet 401 is connected with the other open end; the solid elastic piece 401 is connected to the bottom of the magnetic circuit assembly at least partially, so that the vibration area of the elastic piece 401 is increased, vibration and conduction vibration are facilitated, and the support of the low-frequency vibration is better due to the increase of the vibration area according to the physical characteristics of object vibration, and the low-frequency response frequency of the loudspeaker is lower.
Next, a bone-acoustic conduction speaker and an earphone in the present exemplary embodiment will be further described.
Referring to fig. 1-3, in an embodiment of the present application, the bone conduction and sound speaker includes a spring plate 401, a center of which is at least partially solid, and the solid position of the center of the spring plate 401 is at least partially connected to an outer bottom surface of a magnetic circuit assembly; an eardrum to which a coil assembly 701 is connected, the coil assembly 701 being at least partially located in a magnetic field provided by the magnetic circuit assembly, the coil assembly 701 being configured to generate relative motion with respect to the magnetic circuit assembly under a magnetic field force when receiving an audio signal; the support 103 with two open ends is configured to be connected with the periphery of the tympanic membrane at one open end, and the periphery of the elastic sheet 401 is connected with the open end of the support 103; the magnetic circuit assembly includes: the outer bottom surface of the U-cup 201 is the outer bottom surface of the magnetic circuit component; the inner bottom surface of the U-shaped cup 201 is concentrically connected with one end of the magnet 301; the coil assembly 701 is at least partially located in the gap between the inside of the U-cup 201 and the side of the magnet 301.
In the above embodiment, the U-cup 201 and the magnet 301 provide a magnetic field and a stroke space for the relative vibration of the coil assembly 202.
In an embodiment of the present application, the magnetic circuit assembly further includes: a pole piece 202 concentrically connected to the other end of the magnet 301; wherein, the diameter of the pole piece 202 is equal to or larger than the diameter of the bottom surface of the magnet 301; the coil assembly 701 is at least partially located in the gap between the inside of the U-cup 201 and the side of the pole piece 202.
In the above embodiment, the U-cup 201 and the pole piece 202 are connected to both ends (two magnetic poles) of the magnet 301; the magnetic field is directed so that the gap between the U-cup 201 and the pole piece 202 has a closer magnetic field loop, increasing the magnetic field density of the magnetic field in which the coil assembly 701 is located.
In one embodiment of the present application, the tympanic membrane includes a flange and a membrane 501; the outer circumference of the diaphragm 501 is connected to the inner circumference of the flange and is connected to one end of the coil block 701; the periphery of the folded edge is connected to an opening at one end of the bracket 103.
In the above embodiment, the diaphragm is formed by the folded edge and the diaphragm 501, wherein the folded edge supports the diaphragm 501 to perform linear motion (vibration), so that the distortion of the speaker is reduced while the power of the speaker is maintained, thereby ensuring the fidelity of audio; meanwhile, when the diaphragm 501 vibrates, the folded edge can vibrate and buffer relative to the support 103, so that the diaphragm 501 is effectively prevented from being damaged by high-frequency vibration, and the service life of the loudspeaker is prolonged.
In an embodiment of the present application, the elastic sheet 401 includes a hardware sheet, a plastic sheet, and a PVC sheet.
In the above embodiment, the elastic sheet 401 may be a hardware sheet, a plastic sheet, a PVC sheet, or a special paper, such as offset paper; the plastic sheet, the PVC sheet and the paper elastic sheet 401 are easy to form, and the processing and material cost is relatively low, so that the cost of the loudspeaker can be saved; however, the vibration effect is not as good as that of the wujin piece, and the wujin piece with better vibration effect is preferably used as the elastic piece 401 of the bone sound conduction speaker.
In an embodiment of the present application, a hollow portion is formed between the center and the periphery of the elastic piece 401.
In the above embodiment, the solid portion of the center of the elastic piece 401 is connected to the bottom surface of the U-cup 201, so that the elastic piece 401 has a larger suspended vibration surface and a larger vibration space; the suspended vibration surface of the elastic sheet 401 is designed to be a hollow structure, as shown in fig. 2, so that a longer vibration structure is formed from the position of the connecting U-cup 201 to the position of the bracket 103, thereby improving the elasticity of the elastic sheet 401 on the one hand and increasing the vibration effect of the elastic sheet in the low frequency aspect on the other hand.
In an embodiment of the present application, the device further comprises a housing; the periphery of the support 103 is connected to the inner wall of the housing, so that the housing forms a front cavity at the end of the drum membrane and a rear cavity at the end of the elastic sheet 401.
In the above embodiments, the speaker does not have good protection performance, for example, the eardrum, the elastic sheet and the coil are easily damaged when touching a foreign object; the loudspeaker is protected by the components inside the shell loudspeaker, so that the loudspeaker is effectively prevented from being damaged by invasion of foreign objects, and the loudspeaker is effectively protected.
In an embodiment of the present application, the housing is a split type, which includes a rear shell 101 and a front shell 102; the rear shell 101 corresponds to the rear cavity, and the front shell 102 corresponds to the front cavity.
In the above embodiment, the shell is designed to be split into the rear shell 101 and the front shell 102, so that the production and the assembly are convenient, and the production process is simplified.
In an embodiment of the present application, the front shell 102 is provided with at least one sound hole 601, the sound hole 601 being configured to maintain a high frequency tuning frequency between the bone-acoustic conduction speaker and the front cavity.
In the above embodiment, the sound hole 601 maintains the high frequency tuning frequency between the bone acoustic conduction speaker and the front cavity, and simultaneously, the air conduction sound wave is easily conducted out from the sound hole 601, thereby improving the sound quality of the air conduction sound wave.
In an embodiment of the present application, at least one air hole 801 is formed in a side surface of the rear case 101; the air holes 801 are configured to maintain a low frequency tuning frequency between the bone conduction speaker and the back cavity. In the above embodiment, the air hole 801 is configured to maintain the low-frequency tuning frequency between the bone conduction speaker and the back cavity, and meanwhile, the air pressure inside and outside the sound cavity formed by the balance housing is adjusted through the air hole 801, and the deformation of the diaphragm 501 caused by the unequal air pressure in the front and back is prevented, so that the most important is that the radiation energy of the back of the speaker can be fully utilized, and the lower limit of the low frequency and the sense of measurement of the low frequency band can be effectively improved; the shapes of the air hole 801 and the sound hole 601 include, but are not limited to, round, square, oval and other special shapes; the positions and shapes of the air holes 801 and the sound holes 601 can be flexibly set according to the requirements of earphones or other sound production equipment during processing.
In the above embodiment, by providing the sound hole 601 in the front case 102, the air conduction sound wave is easily conducted out from the sound hole 601, and the sound quality of the air conduction sound wave is improved; the air holes 801 are used for adjusting and balancing air pressure inside and outside a sound cavity formed by the shell and preventing deformation and the like caused by unequal air pressure in front and back when the diaphragm 501 vibrates at high frequency, the most important is that the radiation energy of the back of the loudspeaker can be fully utilized, and the lower limit of low frequency and the sense of quantity of low frequency can be effectively improved.
The shapes of the air hole 801 and the sound hole 601 include, but are not limited to, round, square, oval and other special shapes; the positions and shapes of the air holes 801 and the sound holes 601 can be flexibly set according to the requirements of earphones or other sound production equipment during processing.
The total area of the sound hole 601 is 5% -15% of the area of the effective vibration diaphragm. The material of the diaphragm 501 includes, but is not limited to, the cloth, rubber, PU, metal, composite material, etc. used to radiate sound waves. The size and the position of the sound hole 601 can influence the high-frequency cut-off frequency and the sensitivity of medium and low frequencies; too large a sound hole 601 may cause too much high frequency noise, and too small may cause a small sound volume. The area of the sound hole 601 is 5% -15% of the effective vibration area of the loudspeaker; so that the full-frequency vibration sounding effect can be better.
In an embodiment of the application, the tuning device further comprises a first tuning part and a second tuning part (not shown in the figure), wherein the first tuning part is attached inside the air hole 801; the second tuning member is fitted inside the sound hole 601.
In the above embodiment, the first tuning part and the second tuning part preferably use tuning materials, and can be used in the air hole 801 and/or the sound outlet hole 601, so as to improve medium-high frequency, make sound clearer, and not cloudy, and achieve a five-level waterproof function in a key manner, and the tuning materials include but are not limited to materials such as mesh cloth, cotton, and are not limited to mesh cloth, cotton, and the like subjected to waterproof processing. The first tuning part and the second tuning part are arranged to match with the shapes of the air hole 801 and the sound outlet 601, and the tuning materials of the first tuning part and the second tuning part, the size of the air hole 801 is required to be as small as possible under the premise that the leakage effect can be achieved, the air hole 801 is too small or too large, the low frequency and the sound field can be weakened, and preferably, the effective diameter of the air hole 801 is set to be not smaller than 1mm, so that a better low-frequency effect can be achieved.
In an embodiment of the application, a sound conduction earphone is further disclosed, which comprises a wearing piece and a sounding piece connected with the wearing piece; the wearing piece is an ear hanging piece, a neck hanging piece or a head wearing piece; the earphone is arranged in the forms of an ear-hung earphone, a neck-hung earphone, a back-hung earphone, a head-worn earphone and the like according to different requirements; the bone sound conduction loudspeaker is arranged on the sound producing component; the loudspeaker with the shell can be directly used as a sounding part of the earphone, and the complete earphone is formed by connecting the audio interface; the re-packaging can also protect the loudspeaker on the one hand and make the appearance of the earphone more beautiful on the other hand.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the true scope of the embodiments of the present invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The bone-acoustic conduction speaker and the earphone provided by the utility model are described in detail, and the principle and the implementation mode of the utility model are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A bone-acoustic conduction speaker, comprising:
the solid position of the center of the elastic sheet is at least partially connected with the outer bottom surface of the magnetic circuit component;
an eardrum having a coil assembly coupled thereto, the coil assembly being at least partially positioned in a magnetic field provided by the magnetic circuit assembly, the coil assembly being configured to produce relative motion with respect to the magnetic circuit assembly under magnetic field forces when an audio signal is received;
the support is provided with two open ends, one end of the support is connected with the periphery of the tympanic membrane, and the other end of the support is connected with the periphery of the elastic sheet.
2. The bone acoustic conduction speaker of claim 1, wherein the magnetic circuit assembly comprises:
the outer bottom surface of the U cup is the outer bottom surface of the magnetic circuit component; the bottom surface of the interior of the U cup is concentrically connected with one end of the magnet;
the coil assembly is at least partially located in a gap between the interior of the U-cup and the side of the magnet.
3. The bone acoustic conduction speaker of claim 1, wherein the eardrum comprises a flange and a diaphragm;
the outer periphery of the diaphragm is connected with the inner periphery of the folded edge and connected to one end of the coil assembly;
the periphery of the folded edge is connected to an opening at one end of the bracket.
4. The bone-acoustic conduction speaker of claim 1, wherein the spring plate comprises a piece of hardware, a piece of plastic, and a piece of PVC foil.
5. The bone acoustic conduction speaker according to any one of claims 1 to 4, wherein a hollow is formed between the center and the periphery of the resilient piece.
6. The bone sound conduction speaker of claim 1, further comprising a housing;
the periphery of the support is connected to the inner wall of the shell, so that the shell forms a front cavity at the film-blowing end and a rear cavity at the elastic piece end.
7. The bone acoustic conduction speaker of claim 6, wherein the housing is split, comprising a rear shell and a front shell;
the rear shell corresponds to the rear cavity, and the front shell corresponds to the front cavity.
8. The bone acoustic conduction speaker of claim 7, wherein the front shell is provided with at least one sound hole configured to maintain a high frequency tuning frequency between the bone acoustic conduction speaker and the front cavity.
9. The bone acoustic conduction speaker of claim 7, wherein the side of the rear case is provided with at least one air hole; the air vent is configured to maintain a low frequency tuning frequency between the bone conduction speaker and the back cavity.
10. The bone-sound conduction earphone is characterized by comprising a wearing piece and a sounding piece connected with the wearing piece;
the wearing piece is an ear hanging piece, a neck hanging piece or a head wearing piece;
the sound emitting member is provided with the bone-sound conduction speaker as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220165286.9U CN216795277U (en) | 2022-01-20 | 2022-01-20 | Bone acoustic conduction speaker and earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220165286.9U CN216795277U (en) | 2022-01-20 | 2022-01-20 | Bone acoustic conduction speaker and earphone |
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| Publication Number | Publication Date |
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| CN216795277U true CN216795277U (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220165286.9U Active CN216795277U (en) | 2022-01-20 | 2022-01-20 | Bone acoustic conduction speaker and earphone |
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| CN (1) | CN216795277U (en) |
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