CN212115624U - Novel sound production unit and earphone comprising same - Google Patents
Novel sound production unit and earphone comprising same Download PDFInfo
- Publication number
- CN212115624U CN212115624U CN202020750674.4U CN202020750674U CN212115624U CN 212115624 U CN212115624 U CN 212115624U CN 202020750674 U CN202020750674 U CN 202020750674U CN 212115624 U CN212115624 U CN 212115624U
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- China
- Prior art keywords
- magnet
- generating unit
- sound generating
- main magnet
- vice
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Links
- 239000013078 crystal Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000026683 transduction Effects 0.000 description 1
- 238000010361 transduction Methods 0.000 description 1
Images
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to a sound generating unit technical field specifically discloses a novel sound generating unit and contain earphone of this sound generating unit, and this novel sound generating unit includes the basin frame and locates the moving coil in the basin frame, and the moving coil is connected with the vibrating diaphragm, a serial communication port, the basin frame in still be equipped with magnet assembly, magnet assembly include main magnet and the vice magnet of locating the main magnet outside, main magnet and vice magnet are cylindric structure and follow coaxial setting, and the thickness of main magnet is greater than the thickness of vice magnet, the cross section diameter of vice magnet is greater than the cross section diameter of main magnet. The utility model discloses an effect that the sound generating unit high frequency extends is good, and high frequency expression is strong, can obviously improve sound generating unit's high frequency (15 ~ 20KHz) characteristic, effectively solves prior art, and the small-size sound generating unit of moving coil is because the problem that the high frequency that the structure restriction leads to is encumbered.
Description
Technical Field
The utility model relates to a sound generating unit technical field especially relates to a novel sound generating unit and contain earphone of this sound generating unit.
Background
The sound generating unit is widely applied to the fields of earphones, loudspeakers, receivers and the like, and is usually installed in a shell and can be divided into a moving coil type, a moving iron type and an electrostatic type according to the transduction mode of the sound generating unit, wherein the moving coil type is most widely applied, and the sound generating principle of the moving coil type lies in that: the coil in the permanent magnetic field is connected with the vibrating diaphragm, and the coil drives the vibrating diaphragm to sound under the drive of signal current.
Generally speaking, the larger the diameter of the sounding unit is, the more excellent the performance of the earphone, however, due to the product requirements, especially when the portable earphone product is needed to be applied, the volume of the moving-coil sounding unit needs to be reduced as much as possible, and the existing moving-coil small sounding unit, especially the moving-coil small sounding unit with the diameter smaller than 15mm, is not used in high frequency due to structural limitation, although many moving-coil small sounding unit products on the market claim that the frequency response can reach 20KHz, in practical tests, it is found that the audio frequency curve of these products will drop when the frequency reaches above 15KHz, and the high frequency characteristic is not good. Therefore, the existing moving-coil small-sized sound emitting unit still needs to be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can obviously improve high frequency characteristic's novel sound generating unit and contain this sound generating unit's earphone to existing technical situation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an object of the utility model is to provide a novel sound production unit, including the basin frame and locating the moving coil in the basin frame, moving coil is connected with the vibrating diaphragm, its characterized in that, the basin frame in still be equipped with magnet assembly, magnet assembly include main magnet and the vice magnet of locating the main magnet outside, main magnet and vice magnet are cylindric structure and follow coaxial setting, and the thickness of main magnet is greater than the thickness of vice magnet, and the cross section diameter of vice magnet is greater than the cross section diameter of main magnet.
Preferably, the rotating surface of the cylindrical structure of the secondary magnet protrudes outwards to form an arc-shaped curved surface.
Preferably, the bottom of the basin stand is inwards recessed with an inner slot for clamping the main magnet, and the outer periphery of the inner slot is provided with an outer ring slot for mounting the moving coil.
Preferably, the moving coil comprises a hollow coil frame and a coil wound on the coil frame, and an enameled wire conductor of the coil is a single crystal copper conductor.
Another object of the present invention is to provide an earphone, including the above-mentioned novel sound generating unit.
The beneficial effects of the utility model reside in that:
the utility model discloses in, the permanent magnet adopts the magnet subassembly of compriseing main magnet and the two magnet of vice magnet, and wherein, main magnet and vice magnet are cylindric structure, and vice magnet is little than main magnet thickness, diameter big, the utility model discloses an effect that the sound production unit high frequency extends is good, and high frequency expression is strong, can obviously improve the high frequency (15 ~ 20KHz) characteristic of sound production unit, effectively solves prior art, and the small-size sound production unit of moving coil formula is because the problem that the high frequency that the structure restriction leads to is encumbered.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the magnet assembly.
Fig. 3 is a schematic diagram of an audio test curve of a sound generating unit (comparative example) using a single magnet and the sound generating unit of the present invention.
Fig. 4 is another schematic structural diagram of the present invention.
Fig. 5 is a structural schematic diagram of the basin stand.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and embodiments:
example 1
Please refer to fig. 1-2, the utility model discloses a novel sound generating unit, include basin frame 1 and locate the moving coil 2 in the basin frame 1, moving coil 2 is connected with the vibrating diaphragm, through the glue joint between the one end of moving coil 2 and the vibrating diaphragm, and moving coil 2 is in the permanent magnetic field, still be equipped with magnet assembly (providing the permanent magnetic field) in the basin frame 1, magnet assembly includes main magnet 3 and the vice magnet 4 who locates the main magnet 3 outside, main magnet 3 is cylindric structure and follows coaxial setting with vice magnet 4, and the thickness H1 of main magnet 3 is greater than the thickness H2 of vice magnet 4, the cross section diameter D2 of vice magnet 4 is greater than the cross section diameter D1 of main magnet 3.
The utility model discloses in, improve the magnet subassembly that comprises main magnet 3 and 4 two magnets of vice magnet with traditional permanent magnet by monolithic magnet, through many times experiment, it is cylindric structure to discover to be when main magnet 3 and vice magnet 4, and under the condition that vice magnet 4 is little than main magnet 3 thickness, the diameter is big, can obviously improve sound producing unit's high frequency characteristic (15KHz ~ 20KHz), among the solution prior art, the small-size sound producing unit of moving coil is because the problem that the high frequency that the structural constraint leads to is weak.
Will adopt monolithic magnet's sound producing unit (comparative example) with the utility model discloses a sound producing unit tests, and the test result refers to the audio test curve schematic diagram of fig. 3, can obviously be seen out by the test curve schematic diagram, compares with the sound producing unit of the monolithic magnet of adoption, the utility model discloses a sound producing unit is at the later high-frequency part of 15KHz, and the curve is relatively mild, and the decline range obviously reduces, and the effect that the high frequency extends is better, and high frequency expression is stronger.
Referring to fig. 4, as a preferred embodiment of the present invention, the rotating surface of the cylindrical structure of the auxiliary magnet 4 protrudes outward to form an arc-shaped curved surface 5, the magnetic force line forms a loop along the normal direction of the arc-shaped curved surface 5, the arc-shaped curved surface 5 structure of the auxiliary magnet 4 makes the sound field richer, further improves the tone quality, makes the sound emitted by the vibrating diaphragm more pleasant and more pleasant, and the high-tone detail performance is obviously enhanced.
Referring to fig. 5, as a preferred embodiment of the present invention, an inner slot 11 for clamping the main magnet 3 is recessed inward at the bottom of the basin frame 1, one end of the main magnet 3 away from the auxiliary magnet 4 is embedded and fixed in the inner slot 11, and an outer slot 12 for installing the moving coil 2 is disposed at the outer peripheral side of the inner slot 11.
As a preferred embodiment of the present invention, the moving coil 2 comprises a hollow coil frame and a coil wound on the coil frame, the enameled wire conductor of the coil is a single crystal copper conductor, the existing sounding unit widely uses oxygen-free copper (abbreviated as OFC), the oxygen-free copper has the disadvantages that the number of crystals inside the oxygen-free copper is large, and there are impurities, there are gaps between the crystals and impurities, and these gaps can cause phase change in the audio current conduction process, thereby causing audio distortion and attenuation, and the present invention uses a single crystal copper conductor, the whole copper rod of which is formed by stretching a single crystal (a single crystal is stretched to a copper wire with a length of 500 meters and a diameter of 0.03 mm), there is no 'crystal boundary' generated between the crystals, thus having extremely high signal transmission performance, effectively reducing audio distortion and attenuation, better original sound reduction.
Example 2
An earphone comprising the novel sound emitting unit described in embodiment 1.
Of course, the above illustration is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so all equivalent changes made in the principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a novel sound production unit, includes the basin frame and locates the moving coil in the basin frame, moving coil is connected with the vibrating diaphragm, its characterized in that, the basin frame in still be equipped with magnet assembly, magnet assembly include main magnet and locate the vice magnet in the main magnet outside, main magnet and vice magnet are along being cylindric structure and along coaxial setting, and the thickness of main magnet is greater than the thickness of vice magnet, and the cross section diameter of vice magnet is greater than the cross section diameter of main magnet.
2. The novel sound generating unit according to claim 1, wherein the rotating surface of the cylindrical structure of the secondary magnet is convex outward to form an arc-shaped curved surface.
3. The novel sounding unit according to any one of claims 1 to 2, wherein the bottom of the frame is recessed inward to form an inner slot for fastening the main magnet, and an outer slot for mounting the moving coil is formed on the outer periphery of the inner slot.
4. The novel sounding unit according to any one of claims 1 to 2, wherein the moving coil comprises a hollow coil frame and a coil wound on the coil frame, and an enameled wire conductor of the coil is a single crystal copper conductor.
5. A headset characterized by comprising a novel sound emitting unit according to any one of claims 1 to 2.
6. A headset characterized in that it comprises a new sound emitting unit according to claim 3.
7. An earphone characterized by comprising the novel sound emitting unit according to claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020750674.4U CN212115624U (en) | 2020-05-08 | 2020-05-08 | Novel sound production unit and earphone comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020750674.4U CN212115624U (en) | 2020-05-08 | 2020-05-08 | Novel sound production unit and earphone comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212115624U true CN212115624U (en) | 2020-12-08 |
Family
ID=73617033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020750674.4U Expired - Fee Related CN212115624U (en) | 2020-05-08 | 2020-05-08 | Novel sound production unit and earphone comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212115624U (en) |
-
2020
- 2020-05-08 CN CN202020750674.4U patent/CN212115624U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |