CN204669582U - Earphone Sintered NdFeB magnet - Google Patents
Earphone Sintered NdFeB magnet Download PDFInfo
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- CN204669582U CN204669582U CN201520444484.9U CN201520444484U CN204669582U CN 204669582 U CN204669582 U CN 204669582U CN 201520444484 U CN201520444484 U CN 201520444484U CN 204669582 U CN204669582 U CN 204669582U
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- magnet
- earphone
- magnet body
- rubber layer
- sintered ndfeb
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Abstract
The utility model discloses a kind of earphone Sintered NdFeB magnet, comprises magnet body, and described magnet body is that sintered neodymium iron boron material is made, and described magnet body is annular; One deck nickel coating is coated with outside described magnet body; Described nickel coating also wraps up the rubber layer of annular outward.The earphone magnet that the utility model overcomes prior art lacks the defect of corrosion-resistant coating and fixed effect difference, utilize flexible rubber layer to make magnet and ear casing carry out damping to be connected, prevent magnet from rocking, in addition, nickel coating has resistance to corrosion, substantially increases magnet useful life.
Description
Technical field
The utility model relates to a kind of earphone Sintered NdFeB magnet.
Background technology
The earphone magnet of prior art lacks corrosion-resistant coating, and is only provided with location hole, when earphone is installed, earphone magnet and ear casing fixed effect poor, easily rock, affect the tonequality of loud speaker.
Utility model content
(1) technical problem that will solve
The purpose of this utility model will overcome above-mentioned shortcoming exactly, aims to provide a kind of earphone Sintered NdFeB magnet.
(2) technical scheme
For achieving the above object, earphone Sintered NdFeB magnet of the present utility model, comprises magnet body, and described magnet body is that sintered neodymium iron boron material is made, and described magnet body is annular; One deck nickel coating is coated with outside described magnet body; Described nickel coating also wraps up the rubber layer of annular outward.
Further, described magnet body evenly offers multiple installing hole, described installing hole is through hole.
Further, described installing hole is at least two, and distributes with magnet body Central Symmetry.
Further, described rubber layer thickness is consistent with the magnet body with nickel coating.
Further, described rubber layer is flexible rubber layer.
(3) beneficial effect
Compared with prior art, the technical solution of the utility model has the following advantages: the earphone magnet overcoming prior art lacks the defect of corrosion-resistant coating and fixed effect difference, utilize flexible rubber layer to make magnet and ear casing carry out damping to be connected, prevent magnet from rocking, in addition, nickel coating has resistance to corrosion, substantially increases magnet useful life.
Accompanying drawing explanation
Fig. 1 is the structural representation of earphone Sintered NdFeB magnet of the present utility model;
Fig. 2 is that the utility model A-A is to cutaway view;
Fig. 3 is the assembling schematic diagram of this practical earphone Sintered NdFeB magnet.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
As depicted in figs. 1 and 2, earphone Sintered NdFeB magnet of the present utility model, comprises magnet body 1, and described magnet body 1 is made for sintered neodymium iron boron material, and described magnet body 1 is annular; One deck nickel coating 2 is coated with outside described magnet body 1; The outer rubber layer 3 also wrapping up annular of described nickel coating 2.
Described magnet body 1 evenly offers multiple installing hole 4, and described installing hole 4 is through hole.
Described installing hole 4 is at least two, and distributes with magnet body 1 Central Symmetry.
Described rubber layer 3 thickness is consistent with the magnet body 1 with nickel coating 2, ensures that magnet size meets specification.
Described rubber layer 3 is flexible rubber layer 3, rubber layer 3 is connected with earphone case damping, prevents magnet from rocking.
As shown in Figure 3, earphone Sintered NdFeB magnet installation process of the present utility model is simply effective, installing hole is coordinated grafting with ear casing 5 reference column, magnet is pressed into ear casing 5, utilize flexible rubber layer ductility to carry out damping with ear casing 5 wall to be connected, thus fixed magnets, avoid rocking and impact is brought on tonequality.
In addition; the aerial stability of nickel coating is very high; because metallic nickel has very strong passivation ability; the very thin passivating film of one deck is generated rapidly in surface energy; the corrosion of air, alkali and some acid can be resisted; to the magnet body be made up of sintered NdFeB, there is protective effect, improve the useful life of magnet.
In sum, above-mentioned execution mode is not restricted execution mode of the present utility model, and the modification that all those skilled in the art carry out on the basis of flesh and blood of the present utility model or equivalent deformation, all at technology category of the present utility model.
Claims (5)
1. an earphone Sintered NdFeB magnet, comprises magnet body (1), it is characterized in that: described magnet body (1) is made for sintered neodymium iron boron material, and described magnet body (1) is annular; One deck nickel coating (2) is coated with outside described magnet body (1); Described nickel coating (2) also wraps up the rubber layer (3) of annular outward.
2. earphone Sintered NdFeB magnet as claimed in claim 1, it is characterized in that: described magnet body (1) evenly offers multiple installing hole (4), described installing hole (4) is through hole.
3. earphone Sintered NdFeB magnet as claimed in claim 2, is characterized in that: described installing hole (4) is at least two, and distributes with magnet body (1) Central Symmetry.
4. earphone Sintered NdFeB magnet as claimed in claim 3, is characterized in that: described rubber layer (3) thickness is consistent with the magnet body (1) with nickel coating (2).
5. earphone Sintered NdFeB magnet as claimed in claim 4, is characterized in that: described rubber layer (3) is flexible rubber layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520444484.9U CN204669582U (en) | 2015-06-25 | 2015-06-25 | Earphone Sintered NdFeB magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520444484.9U CN204669582U (en) | 2015-06-25 | 2015-06-25 | Earphone Sintered NdFeB magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204669582U true CN204669582U (en) | 2015-09-23 |
Family
ID=54139919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520444484.9U Active CN204669582U (en) | 2015-06-25 | 2015-06-25 | Earphone Sintered NdFeB magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204669582U (en) |
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2015
- 2015-06-25 CN CN201520444484.9U patent/CN204669582U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Lin Shan Zhen Feng Qi Road Yuyao 315451 Zhejiang province Ningbo City No. 17 Patentee after: Zhejiang Zhong hang Mstar Technology Ltd Address before: Linshan town Yuyao city Zhejiang province 315460 Ningbo Linpu Village Patentee before: ZHEJIANG ZHONGHANG NEW MATERIAL CO., LTD. |