CN115226009A - Micro-motion loudspeaker and micro-motion headset - Google Patents
Micro-motion loudspeaker and micro-motion headset Download PDFInfo
- Publication number
- CN115226009A CN115226009A CN202210700181.3A CN202210700181A CN115226009A CN 115226009 A CN115226009 A CN 115226009A CN 202210700181 A CN202210700181 A CN 202210700181A CN 115226009 A CN115226009 A CN 115226009A
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- conductive
- coil
- motion
- micro
- permanent magnet
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000010931 gold Substances 0.000 claims abstract description 14
- 229910052737 gold Inorganic materials 0.000 claims abstract description 14
- 238000007654 immersion Methods 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims description 10
- 230000005389 magnetism Effects 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 5
- ZHBBDTRJIVXKEX-UHFFFAOYSA-N 1-chloro-2-(3-chlorophenyl)benzene Chemical compound ClC1=CC=CC(C=2C(=CC=CC=2)Cl)=C1 ZHBBDTRJIVXKEX-UHFFFAOYSA-N 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/12—Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
-
- 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
Abstract
The invention discloses a micro-motion loudspeaker, which comprises a basin frame, a face cover, a vibrating diaphragm, a conductive coil with a positive pole and a negative pole and a permanent magnet array, wherein the vibrating diaphragm, the conductive coil and the permanent magnet array are arranged in a cavity formed by the basin frame and the face cover, the conductive coil is distributed in a plane and is combined with the vibrating diaphragm into a whole to form a coil composite vibrating diaphragm, the coil composite vibrating diaphragm is tightly fixed on a support frame by one side without the conductive coil, and a PCB (printed circuit board) with the same shape as the support frame is arranged on the other side of the coil composite vibrating diaphragm with the conductive coil. According to the method, the fan-shaped gold immersion conductive arc section structure is designed on the PCB, so that the stability of an external circuit of the conductive coil on the coil composite vibrating diaphragm is improved, and the yield and the durability of products are improved; in addition, the unique permanent magnet array design is matched with the tuning net designed by the sound hole, so that the medium-high frequency effect is effectively improved, the conversion efficiency of the loudspeaker is greatly improved, and the effects of reducing cost and improving efficiency are realized.
Description
Technical Field
The invention relates to a loudspeaker device, in particular to a micro-motion loudspeaker and a micro-motion headset.
Background
The micromotive headset combines the advantages of both moving coil and electrostatic headsets, has better performance than electrostatic headsets in the low frequency aspect, and is also stronger than moving coil headsets in the high frequency aspect. The structure of the speaker at the core thereof is generally such that a plurality of strip-shaped permanent magnets are arranged in parallel on a yoke, a diaphragm is arranged in parallel with respect to the magnetic pole surfaces of the permanent magnets, and a coil is provided at a position on the diaphragm opposed to the permanent magnets. The current flowing inside the coil is orthogonal to the magnetic field generated by the permanent magnet, so that by passing an alternating current through the coil, the coil generates a force according to faraday's law, under which the diaphragm vibrates in the vertical direction, and the alternating current signal is converted into an acoustic signal.
When the loudspeaker is produced and manufactured, the coil needs to be welded with the circuit board to serve as a driving unit of the micro-motion earphone, the coil of the micro-motion earphone is easy to damage due to high temperature during welding, the yield is low, and if the welding is unstable, the circuit is easy to break when the loudspeaker is impacted in the using process, and damage is caused; in addition, for the common flat magnet, in order to improve the conversion efficiency, the method of increasing the magnetic flux is to add more magnets, but this means that the head part increases the weight, and the amount of the magnets is too much, so that the diffraction is increased, and the sound effect is affected.
Disclosure of Invention
In view of the above problems, the present invention provides a micro-motion speaker with improved yield and sound effect.
In order to realize the technical purpose, the scheme of the invention is as follows: the utility model provides a fine motion formula speaker, includes basin frame and face lid to and install vibrating diaphragm, the conductive coil and the permanent magnet array that have positive negative pole in by the basin frame constitutes the cavity with the face lid, the conductive coil adopt the plane lay and with the compound integrative structure of vibrating diaphragm is the compound vibrating diaphragm of coil, the compound vibrating diaphragm of coil is tightened with the one side that does not have the conductive coil and is fixed on a support frame, and the another side that the compound vibrating diaphragm of coil has the conductive coil set with the PCB board that support frame shape is the same, the PCB board is provided with two fan-shaped heavy golden conductive arc sections towards the compound vibrating diaphragm's of coil one side and is connected with the positive negative pole electricity of conductive coil respectively, the positive negative pole of conductive coil also constructs to be the arc section shape with fan-shaped heavy golden conductive arc section assorted, another side that the PCB board is located fan-shaped heavy golden conductive arc section constructs positive negative connection terminal and is used for external conductor power supply to the conductive coil, positive negative connection terminal with fan-shaped heavy golden conductive arc section is located different arc sections on the PCB board.
Preferably, the permanent magnet array is formed by arranging and combining a plurality of permanent magnet strips at equal intervals, magnetic strip gaps are formed between every two adjacent permanent magnet strips, a magnetizing sheet with a plurality of through holes uniformly distributed is fixed on the basin frame, the permanent magnet array is fixed on the magnetizing sheet, and the coil composite vibrating diaphragm is arranged in a manner of being tightly attached to the permanent magnet array.
Preferably, the conductive coil is composed of a plurality of conductive circuits, the conductive coil is wound into a plurality of parallel and equidistant coil groups, and the coil groups and the magnetic strip gaps are in one-to-one correspondence with each other, and are in the same number and parallel with each other.
Preferably, the basin frame is provided with a through hole matched with the through hole on the magnetism increasing sheet, and the other side of the basin frame relative to the magnetism increasing sheet is provided with a front tuning dustproof net.
Preferably, the number of the permanent magnet strips adopted in the permanent magnet array is 9, 8 magnetic strip gaps are formed, the number of the coil groups of the conductive coils which are bent is 8, and each group of the coils is provided with 5 conductive circuits.
Preferably, the thickness of the magnetism increasing sheet is 0.6-1mm of magnetic metal sheet.
Preferably, the surface cover is provided with a central through hole group and a circle of surrounding through hole group surrounding the central through hole group, a circular tuning net is assembled corresponding to the central through hole group, and a circular tuning net is assembled corresponding to the surrounding through hole group.
Preferably, the fan-shaped immersion gold conductive arc section is provided with a plurality of conductive bumps, and the conductive bumps ensure stable and reliable electrical connection between the positive electrode and the negative electrode of the conductive coil when the positive electrode and the negative electrode of the conductive coil are tightly attached to the fan-shaped immersion gold conductive arc section.
Preferably, the positive and negative electrodes of the conductive coil are bonded with the fan-shaped gold immersion conductive arc sections by conductive adhesive.
The invention also provides a micro-motion type headset, which is provided with a headset support, wherein two ends of the support are respectively provided with one loudspeaker, and the loudspeaker adopts any one of the micro-motion type loudspeakers.
The invention has the beneficial effects that: the fan-shaped immersion gold conductive arc section structure is designed on the PCB, so that the stability of an external circuit of a conductive coil on the coil composite vibrating diaphragm is improved, and the yield and the durability of a product are improved; in addition, the unique permanent magnet array design is matched with the tuning net designed by the sound hole, so that the medium-high frequency effect is effectively improved, the conversion efficiency of the loudspeaker is greatly improved, and the effects of cost reduction and efficiency improvement are realized.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic diagram of the conductive coil of the present invention;
FIG. 3 is a schematic structural diagram of a PCB board according to the present invention;
FIG. 4 is a schematic view of the internal cross-sectional structure of the present invention;
FIG. 5 is a graph of frequency response before the improvement of the present invention;
FIG. 6 is a graph of the frequency response of the improved invention.
In the figure: 1. a basin stand; 2. a magnetism increasing sheet; 3. a permanent magnet array; 301. a permanent magnet strip; 302. magnetic strip gaps; 4. a support frame; 5. a coil composite diaphragm; 501. a conductive coil; 502. vibrating diaphragm; 503. a positive electrode and a negative electrode; 6. a PCB board; 601. a fan-shaped gold immersion conductive arc section; 602. the positive and negative electric connection ends; 7. a face cover; 701. a central portion through hole; 702. a surrounding through hole group; 8. a circular tone net; 9. a circular tone net; 10. and a front tuning dust screen.
Detailed Description
The invention is described in further detail below with reference to the figures and specific embodiments. In order to clearly and completely describe the technical scheme, the following embodiments are selected for illustration; the following examples are part of the present invention; other embodiments, which can be obtained without inventive step, are within the scope of the present invention.
In the following embodiments, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top/bottom", and the like are all based on the orientations and positional relationships shown in the drawings, and are only for the convenience of clearly describing the embodiments, but do not indicate or imply that the referred devices or elements have to have specific orientations, and therefore, the present application is not limited thereto. Meanwhile, the terms "first" and "second" in the embodiments are used only for distinguishing the description purposes, and are not intended to indicate or imply relative importance.
As shown in fig. 1-4, the embodiment of the present invention is a micro-motion speaker, including a frame 1, a surface cover 7, a diaphragm 502 installed in a cavity formed by the frame 1 and the surface cover 7, a conductive coil 501 having positive and negative electrodes 503, and a permanent magnet array 3, where the conductive coil 501 is arranged in a plane and is combined with the diaphragm 502 into a whole to form a coil composite diaphragm 5, the coil composite diaphragm 5 is fastened and fixed on a frame 4 by a surface without the conductive coil 501, the other surface of the coil composite diaphragm 5 having the conductive coil 501 is provided with a PCB 6 having the same shape as the frame 4, one side of the PCB 6 facing the coil composite diaphragm 5 is provided with two fan-shaped gold-plated conductive arc sections 601 which are respectively electrically connected with the positive and negative electrodes 503 of the conductive coil 501, the positive and negative electrodes of the conductive coil 501 are also configured into an arc section shape matched with the fan-shaped gold-plated conductive arc sections 601, so that the contact area between the circuit board and the conductive coil is increased, and stable electrical connection is achieved, and when the speaker is impacted by external force, the conductive coil 501 is contacted with a large area, the conductive coil 501 is not easily broken circuit, thereby solving the problem of unstable electrical connection 503 in the prior art. The other side face of the PCB 6, which is located on the fan-shaped gold immersion conductive arc section 601, is provided with the positive and negative electric connection ends 602 for supplying power to the conductive coil 501 through an external lead, the positive and negative electric connection ends 602 and the fan-shaped gold immersion conductive arc section 601 are located on different arc sections of the PCB, and the positive and negative electric connection ends 602 and the fan-shaped gold immersion conductive arc section 601 are staggered, so that the conductive coil 501 is prevented from being damaged due to high temperature when the positive and negative electric connection ends 602 are welded with the external lead, and good products in the production process are guaranteed.
The utility model provides a permanent magnet array 3 adopts the equidistant combination of plural permanent magnet strip 301 to form, form magnetic stripe clearance 302 between the adjacent permanent magnet strip 301, both improved the magnetic flux, the gross mass of reducible permanent magnet array 3 on year-on-year basis, thereby reduce cost, in order not to make permanent magnet strip 301's magnetic leakage coefficient too big and lead to permanent magnet strip 301's utilization ratio to hang down, this permanent magnet array 3 is fixed on the piece 2 that increases that an equipartition has a plurality of through-holes, the magnetic metal piece of 0.6-1mm thickness is selected for use to the thickness of the piece 2 that increases, it fixes on basin frame 1 to increase the piece 2, permanent magnet array 3 sets up is hugged closely to coil composite vibrating diaphragm 5, guarantee permanent magnet array 3 effectively adsorbs on increasing piece 2, do not stick up the limit, be difficult for droing, and the production efficiency is improved.
As the conductive coil 501 in the embodiment of the present application, the conductive coil 501 is composed of a plurality of conductive circuits, the conductive coil 501 is bent into a plurality of parallel and equidistant coil groups, the number of the coil groups and the number of the magnetic stripe gaps 302 are the same, and the coil groups and the magnetic stripe gaps 302 are parallel to each other and are arranged in a one-to-one correspondence manner, so that the magnetic field of the magnetic stripe gaps 302 and the acting force of the conductive coil 501 is improved, and the conversion efficiency of the speaker is greatly improved.
This application set up on basin frame 1 with increase magnetic sheet 2 on through-hole assorted through-hole, and be provided with a preceding tuning dust screen 10 for the opposite side of increasing magnetic sheet 2 at basin frame 1, can reduce the dust that permanent magnet array 3 received, and carry out the tuning to the speaker, promote tone quality.
As a specific embodiment of the present application, the number of the permanent magnet strips 301 preferably used in the permanent magnet array 3 is 9, 8 magnetic strip gaps 302 are formed, the number of the coil groups in which the conductive coils 501 are bent is 8, and each group of coils has 5 conductive wires, so that the medium-high frequency effect is effectively improved.
In order to further improve the sound quality of the loudspeaker, the surface cover 7 is provided with a central through hole 701 group and a circle of surrounding through hole group 702 surrounding the central through hole 701 group, a circular tuning net 9 is assembled corresponding to the central through hole 701 group, a circular tuning net 8 is arranged corresponding to the surrounding through hole group 702, and a dustproof canopy for protection is further arranged on the circular tuning net.
In order to stably and electrically connect the conductive coil 501 and the PCB 6, a plurality of conductive bumps are formed on the fan-shaped immersion gold conductive arc 601, when the positive and negative electrodes 503 of the conductive coil 501 are tightly attached to the fan-shaped immersion gold conductive arc 601, the conductive bumps ensure stable and reliable electrical connection between the positive and negative electrodes 503 of the conductive coil 501 and the fan-shaped immersion gold conductive arc 601, and the positive and negative electrodes 503 of the conductive coil 501 and the fan-shaped immersion gold conductive arc 601 are bonded by using conductive adhesive.
As shown in fig. 5-6, the sound channels of the loudspeaker of the present application are tested, fig. 5 is a frequency response curve before improvement, and fig. 6 is a frequency response curve after improvement of the permanent magnet array and the magnetic adding sheet of the present application, so that it can be seen that the middle and high frequency sound effects of the loudspeaker are improved to some extent compared with the prior art, and the middle and high frequency effects are effectively improved.
The invention also provides a scheme of the micro-motion type headset, the headset of the scheme is provided with a headset support, two ends of the support are respectively provided with a loudspeaker, and the loudspeakers adopt the micro-motion type loudspeakers.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a fine motion formula speaker, includes basin frame and face lid to and install vibrating diaphragm, the conductive coil and the permanent magnet array that have positive negative pole in by the basin frame in the cavity that constitutes of face lid, its characterized in that, the conductive coil adopt the plane lay and with the compound integrative structure of vibrating diaphragm is the compound vibrating diaphragm of coil, the compound vibrating diaphragm of coil is tightened with the one side that does not have the conductive coil and is fixed on a support frame, the another side that the compound vibrating diaphragm of coil has the conductive coil set with the PCB board that support frame shape is the same, one side that the PCB board is towards the compound vibrating diaphragm of coil is provided with two fan-shaped heavy golden conductive arc sections and is connected with the positive negative pole electricity of conductive coil respectively, the positive negative pole of conductive coil also sets up to be connected with fan-shaped heavy golden conductive arc section assorted arc section shape, another side that the PCB board is located fan-shaped heavy golden conductive arc section is equipped with positive and negative connection electric terminal and is used for external conductor power supply to the conductive coil, positive and negative terminal with fan-shaped heavy golden conductive arc section is located different arc section on the PCB board.
2. The micro-motion loudspeaker according to claim 1, wherein the permanent magnet array is formed by arranging and combining a plurality of permanent magnet strips at equal intervals, magnetic strip gaps are formed between adjacent permanent magnet strips, a magnetizing sheet with a plurality of through holes uniformly distributed is fixed on the basin frame, the permanent magnet array is fixed on the magnetizing sheet, and the coil composite diaphragm is arranged to be close to the permanent magnet array.
3. The micro-motion speaker as recited in claim 2, wherein the conductive coil is formed by a plurality of conductive traces, the conductive coil is wound into a plurality of parallel and equidistant coil groups, and the coil groups and the magnetic strips have the same number of gaps and are arranged in a parallel one-to-one correspondence.
4. The micro-motion loudspeaker according to claim 3, wherein the frame is provided with a through hole matching with the through hole on the magnetism increasing sheet, and a front tuning dust screen is arranged on the other side of the frame opposite to the magnetism increasing sheet.
5. The micro-motion loudspeaker according to claim 3, wherein the number of permanent magnet bars used in the permanent magnet array is 9, 8 bar gaps are formed, the number of winding groups of the conductive coils which are bent is 8, and each winding group has 5 conductive wires.
6. The micro-motion loudspeaker according to claim 3, wherein the thickness of the magnetism-increasing sheet is 0.6-1mm of magnetic metal sheet.
7. The micro-motion speaker according to claim 3, wherein the cover has a central through hole set and a ring of surrounding through holes surrounding the central through hole set, a circular tuning net is disposed corresponding to the central through hole set, and a circular tuning net is disposed corresponding to the surrounding through hole sets.
8. The micro-motion loudspeaker according to claim 3, wherein the sector-shaped gold-sinking conductive arc segment is configured with a plurality of conductive bumps, and the conductive bumps ensure stable and reliable electrical connection between the positive and negative electrodes of the conductive coil when the conductive coil is tightly attached to the sector-shaped gold-sinking conductive arc segment.
9. The micro-motion loudspeaker according to claim 3, wherein the positive and negative poles of the conductive coil are bonded with the sector-shaped gold immersion conductive arc sections by conductive adhesive.
10. A micro-motion headphone, said headphone having a head-mounted support, each of the two ends of the support being equipped with a speaker, wherein said speaker is the micro-motion speaker according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210700181.3A CN115226009A (en) | 2022-06-20 | 2022-06-20 | Micro-motion loudspeaker and micro-motion headset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210700181.3A CN115226009A (en) | 2022-06-20 | 2022-06-20 | Micro-motion loudspeaker and micro-motion headset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115226009A true CN115226009A (en) | 2022-10-21 |
Family
ID=83608670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210700181.3A Pending CN115226009A (en) | 2022-06-20 | 2022-06-20 | Micro-motion loudspeaker and micro-motion headset |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115226009A (en) |
-
2022
- 2022-06-20 CN CN202210700181.3A patent/CN115226009A/en active Pending
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