CN203661275U - Magnetic structure - Google Patents
Magnetic structure Download PDFInfo
- Publication number
- CN203661275U CN203661275U CN201320686482.1U CN201320686482U CN203661275U CN 203661275 U CN203661275 U CN 203661275U CN 201320686482 U CN201320686482 U CN 201320686482U CN 203661275 U CN203661275 U CN 203661275U
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- China
- Prior art keywords
- magnet steel
- pole piece
- magnetic
- jut
- secondary magnet
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Abstract
The utility model discloses a magnetic structure. The magnetic structure comprises a magnet yoke, magnetic steel, and a pole shank. The magnetic steel comprises main magnetic steel and auxiliary magnetic steel which forms a gap between the main magnetic steel and the auxiliary magnetic steel. The main magnetic steel is provided with a first upper surface. The pole shank is disposed on the auxiliary magnetic steel. The pole shank is provided with a main part, and the main part is provided with a second upper surface on the back of the auxiliary magnetic steel. The second upper surface is lower than the first upper surface. The pole shank is also provided with bulge portions which bend and extend away from the auxiliary magnetic steel from sides of the main part near the magnetic gaps. The magnetic structure can make a magnetic field more centralized and magnetic field distribution more uniform.
Description
Technical field
The utility model relates to loud speaker field, particularly relates to a kind of magnetic structure of the loud speaker being applied to.
Background technology
For adapting to miniaturization, the multifunction development of various stereo sets and information communication device, the loud speaker using in this kind equipment is in requisition for being more tending towards miniaturization, and compacter with coordinating of described other elements of loud speaker periphery.Particularly along with the lightening growth requirement of mobile phone, also more and more higher to the requirement of the loud speaker that wherein used.
In correlation technique, the magnetic structure in magnetic speaker comprises folded yoke and the magnet steel of establishing from lower to upper successively.Described magnet steel comprises main magnet steel, the first secondary magnet steel, the second secondary magnet steel.Described the first secondary magnet steel and described the second secondary magnet steel interval arrange, and relatively described main magnet steel is symmetrical structure, and described main magnet steel is located between described the first secondary magnet steel and described the second secondary magnet steel, to obtain uniform magnetic field.But in the time that drop appears in the height of main magnet steel and secondary magnet steel, the distribution in magnetic field can disperse and be inhomogeneous.
Therefore, being necessary to propose a kind of new loud speaker addresses the above problem.
Utility model content
For solving the problems of the technologies described above, provide a kind of magnetic structure that occurs the Magnetic field inhomogeneity that drop causes due to the height of interior external magnetic circuit that weakens.
A kind of magnetic structure, described magnetic structure comprises folded yoke, magnet steel and the pole piece of establishing successively, described magnet steel comprises main magnet steel and the secondary magnet steel with described main magnet steel formation magnetic gap, described main magnet steel is provided with the first upper surface, described pole piece is arranged on described secondary magnet steel, described pole piece is provided with main part, described main part is provided with the second upper surface of described secondary magnet steel dorsad, described the second upper surface is lower than described the first upper surface, and described pole piece is also provided with from one side of the contiguous described magnetic gap of described main part and extends away from described secondary magnet steel bending the jut forming.
As the improvement of above-mentioned magnetic structure, described jut is provided with the end face of described secondary magnet steel dorsad, described end face and described the first upper surface flush.
As the improvement of above-mentioned magnetic structure, described secondary magnet steel comprises the first secondary magnet steel and the second secondary magnet steel that are arranged at respectively described main magnet steel both sides, described pole piece comprises the first pole piece and the second pole piece that are arranged at respectively on described the first secondary magnet steel and the second secondary magnet steel, described the first pole piece and the second pole piece have respectively the first jut and the second jut, and described the first jut is symmetrical arranged with the relative described main magnet steel of the second jut.
The beneficial effects of the utility model are: the magnetic structure that the utility model provides, by described pole piece, jut being set, to adjust the distribution in magnetic field, thereby makes that magnetic field is more concentrated and Distribution of Magnetic Field is more even.
brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
The three-dimensional assembling structure schematic diagram that Fig. 1 is magnetic structure that the utility model discloses.
Fig. 2 is the perspective exploded view of magnetic structure shown in Fig. 1.
Fig. 3 is the profile of Fig. 1 along A-A line.
Fig. 4 is the enlarged drawing of the local B of Fig. 3.
embodiment
To the technical scheme in the utility model embodiment be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
As Figure 1-4, the utility model magnetic structure 1 comprises folded yoke 10, magnet steel 11 and the pole piece 12 of establishing successively.Described magnet steel 11 comprises main magnet steel 111 and surrounds the secondary magnet steel 112 of magnetic gap 110 with described main magnet steel 111, and described main magnet steel 111 is provided with the first upper surface 1110.Described pole piece 12 is arranged on described secondary magnet steel 112.Described yoke 10 is tabular.
Described pole piece 12 is provided with main part 121, described main part 121 is provided with the second upper surface 1210 of described secondary magnet steel 112 dorsad, described the second upper surface 1210, lower than described the first upper surface 1110, is also that described the second upper surface 1210 is less than the distance B of described the first upper surface 1110 to described yoke 10 to the distance r of described yoke 10.
Described pole piece 12 is also provided with from described main part 121 and deviates from the jut 122 that described secondary magnet steel 112 bendings are extended.Described jut 122 has end face 1220, and described end face 1220 flushes with described the first upper surface 1110, is also that described end face 1220 equals the distance B of described the first upper surface 1110 to described yoke 10 to the distance d of described yoke 10.
In the present embodiment, main magnet steel 111 is the structure that magnet steel and pole piece combine, and in other embodiments, main magnet steel 111 also can only refer to magnet steel.
Described secondary magnet steel 112 comprises the first secondary magnet steel 112a and the second secondary magnet steel 112b that are arranged at respectively described main magnet steel 111 both sides, and described pole piece 12 comprises the first pole piece 12a and the second pole piece 12b that are arranged at respectively on described the first secondary magnet steel 112a and the second secondary magnet steel 112b.Described the first pole piece 12a and the second pole piece 12b have respectively the first jut 122a and the second jut 122b, and described the first jut 122a is symmetrical arranged with the axis of symmetry of the relative described main magnet steel 111 of the second jut 122b.
Because the utility model magnetic structure 1 is provided with jut 122 on described pole piece 12, and the top 1220 of jut 122 flushes with the upper surface 1110 of main magnet steel 111, make the magnetic line of force between pole piece 12 and main magnet steel 111 more regular, therefore there is the magnetic structure of difference in height compared to existing main magnet steel and secondary magnet steel, the magnetic field of the utility model magnetic structure 1 is more concentrated and Distribution of Magnetic Field is more even.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. a magnetic structure, described magnetic structure comprises folded yoke of establishing successively, magnet steel and pole piece, described magnet steel comprises main magnet steel and the secondary magnet steel with described main magnet steel formation magnetic gap, described main magnet steel is provided with the first upper surface, described pole piece is arranged on described secondary magnet steel, described pole piece is provided with main part, described main part is provided with the second upper surface of described secondary magnet steel dorsad, described the second upper surface is lower than described the first upper surface, it is characterized in that, described pole piece is also provided with from one side of the contiguous described magnetic gap of described main part and extends away from described secondary magnet steel bending the jut forming.
2. magnetic structure as claimed in claim 1, is characterized in that, described jut is provided with the end face of described secondary magnet steel dorsad, described end face and described the first upper surface flush.
3. magnetic structure as claimed in claim 2, it is characterized in that, described secondary magnet steel comprises the first secondary magnet steel and the second secondary magnet steel that are arranged at respectively described main magnet steel both sides, described pole piece comprises the first pole piece and the second pole piece that are arranged at respectively on described the first secondary magnet steel and the second secondary magnet steel, described the first pole piece and the second pole piece have respectively the first jut and the second jut, and described the first jut is symmetrical arranged with the axis of symmetry of the relative described main magnet steel of the second jut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320686482.1U CN203661275U (en) | 2013-10-31 | 2013-10-31 | Magnetic structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320686482.1U CN203661275U (en) | 2013-10-31 | 2013-10-31 | Magnetic structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203661275U true CN203661275U (en) | 2014-06-18 |
Family
ID=50927620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320686482.1U Expired - Fee Related CN203661275U (en) | 2013-10-31 | 2013-10-31 | Magnetic structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203661275U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112203196A (en) * | 2020-10-15 | 2021-01-08 | 精拓丽音科技（北京）有限公司 | Magnetic circuit structure and loudspeaker |
-
2013
- 2013-10-31 CN CN201320686482.1U patent/CN203661275U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112203196A (en) * | 2020-10-15 | 2021-01-08 | 精拓丽音科技（北京）有限公司 | Magnetic circuit structure and loudspeaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181129 Address after: No. 8, 2 floor, 85 Cavendish Science Park Avenue, Singapore Patentee after: AAC TECHNOLOGIES Pte. Ltd. Address before: 213167 Changzhou, Jiangsu City, Wujin province summer town villa Patentee before: AAC MICROTECH (CHANGZHOU) Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20211031 |