CN203608353U - Magnetic circuit structure and electromagnetic loudspeaker using same - Google Patents
Magnetic circuit structure and electromagnetic loudspeaker using same Download PDFInfo
- Publication number
- CN203608353U CN203608353U CN201320674666.6U CN201320674666U CN203608353U CN 203608353 U CN203608353 U CN 203608353U CN 201320674666 U CN201320674666 U CN 201320674666U CN 203608353 U CN203608353 U CN 203608353U
- Authority
- CN
- China
- Prior art keywords
- magnet steel
- pole core
- secondary magnet
- length
- jut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a magnetic circuit structure and an electromagnetic loudspeaker using the same. The magnetic circuit structure comprises a magnet yoke, magnetic steels and pole cores, which are stacked successively. The magnetic steels include a main magnet steel, a first auxiliary magnet steel and a second auxiliary magnet steel, and the pole cores include a main pole core, a first auxiliary pole core and a second auxiliary pole core piled on the magnet steels correspondingly. The main magnet steel comprises a first side and a second side, which are opposite to each other, and further comprises a third side and a fourth side, which are opposite to each other. The first auxiliary magnet steel and the second auxiliary magnet steel are arranged in a manner of being spaced from the first side and the second side respectively so that magnetic gaps are formed. In the direction perpendicular to the first side, the center line of the first auxiliary magnet steel is between the center line of the main magnet steel and the third side and the center line of the second auxiliary magnet steel is between the center line of the main magnet steel and the fourth side. One side, which is close to the main pole core, of each of the first auxiliary pole core and the second auxiliary pole core is provided with a projection. The projections are arranged opposite to the first side and the second side.
Description
Technical field
The utility model relates to loud speaker field, particularly relates to a kind of magnetic structure and adopts the magnetic speaker of this magnetic structure.
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 shorter and smaller compactness is accomplished in the space of product, often need, according to concrete space requirement, magnetic circuit is made to asymmetric form, so, just can cause Magnetic field inhomogeneity, thereby bring electromagnetism force unbalance.
Utility model content
For solving the problems of the technologies described above, provide a kind of magnetic structure of making the asymmetric Magnetic field inhomogeneity causing due to magnetic circuit that weakens.
A kind of magnetic structure, it comprises folded yoke of establishing successively, magnet steel and pole piece, described magnet steel comprises main magnet steel, the first secondary magnet steel and the second secondary magnet steel, described pole piece comprises the corresponding folded described main magnet steel that is located at, the main pole core of described the first secondary magnet steel and described the second secondary magnet steel, the first consequent pole core and the second consequent pole core, described main magnet steel comprises the first side of end to end setting, the 3rd side, the second side and the 4th side, described the first side and described the second side are oppositely arranged, described the 3rd side and described the 4th side are oppositely arranged, described the first secondary magnet steel and described the second secondary magnet steel respectively relatively described the first side and described the second interval, side arrange formation magnetic gap, along perpendicular to described the first side surface direction, the center line of described the first secondary magnet steel is between the center line and the 3rd side of described main magnet steel, the center line of described the second secondary magnet steel is between the center line and the 4th side of described main magnet steel, described the first consequent pole core and described the second consequent pole core are respectively arranged with the first jut and the second jut near described main pole core one side, described the first jut and relative described the first side and the setting of the second side respectively of described the second jut.
As the improvement of above-mentioned magnetic structure, described jut closes on described magnetic gap side from described pole piece and extends to form.
As the improvement of above-mentioned magnetic structure, the relatively described main magnet steel of described jut is symmetrical arranged.
As the improvement of above-mentioned magnetic structure, described magnet steel also comprises the 3rd secondary magnet steel and fourth officer magnet steel, the 3rd interval, side of the relatively described main magnet steel of described the 3rd secondary magnet steel arranges formation magnetic gap, relatively described the 4th interval, side of described fourth officer magnet steel arranges formation magnetic gap, described the first secondary magnet steel closes on described the 3rd secondary magnet steel setting, and described the second secondary magnet steel closes on the setting of described fourth officer magnet steel.
As the improvement of above-mentioned magnetic structure, described pole piece also comprises corresponding folded the 3rd consequent pole core and the fourth officer pole piece that is located at described the 3rd secondary magnet steel and described fourth officer magnet steel.
As the improvement of above-mentioned magnetic structure, the length of described the first consequent pole core is greater than the length of described the first secondary magnet steel, and the length of described the second consequent pole core is greater than the length of described the second secondary magnet steel.
As the improvement of above-mentioned magnetic structure, the length of described the first consequent pole core equals the length of described the second consequent pole core, and the length of described the first secondary magnet steel equals the length of described the second secondary magnet steel.
As the improvement of above-mentioned magnetic structure, the length of described jut is less than the length of described the first consequent pole core.
A kind of magnetic speaker, described magnetic speaker comprises magnetic structure, described magnetic structure comprises folded yoke of establishing successively, magnet steel and pole piece, described magnet steel comprises main magnet steel, the first secondary magnet steel and the second secondary magnet steel, described pole piece comprises the corresponding folded described main magnet steel that is located at, the main pole core of described the first secondary magnet steel and described the second secondary magnet steel, the first consequent pole core and the second consequent pole core, described main magnet steel comprises the first side of end to end setting, the second side, the 3rd side and the 4th side, described the first side and described the second side are oppositely arranged, described the 3rd side and described the 4th side are oppositely arranged, described the first secondary magnet steel and described the second secondary magnet steel respectively relatively described the first side and described the second interval, side arrange formation magnetic gap, along perpendicular to described the first side surface direction, the center line of described the first secondary magnet steel is between the center line and the 3rd side of described main magnet steel, the center line of described the second secondary magnet steel is between the center line and the 4th side of described main magnet steel, described the first consequent pole core and described the second consequent pole core are respectively arranged with the first jut and the second jut near described main pole core one side, described the first jut and relative described the first side and the setting of the second side respectively of described the second jut.
The beneficial effects of the utility model are: the magnetic structure that the utility model provides, by described the first secondary magnet steel and described the second secondary magnet steel skew are arranged, so just can obtain at diagonal angle place more space, for structural design provides more possibility.Simultaneously by being respectively arranged with the first jut and the second jut at described the first consequent pole core and described the second consequent pole core near described main pole core one side, effectively improve because this kind of Magnetic field inhomogeneity that offset manner causes improved greatly thereby electromagnetism force unbalance is affected.
Accompanying drawing explanation
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 skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 discloses the three-dimensional assembling structure schematic diagram of magnetic structure preferred embodiment for the utility model.
Fig. 2 is the perspective exploded view of magnetic structure shown in Fig. 1.
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, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1 and Fig. 2, Fig. 1 discloses the three-dimensional assembling structure schematic diagram of magnetic structure preferred embodiment for the utility model.Fig. 2 is the perspective exploded view of magnetic structure shown in Fig. 1.Described magnetic structure 1 comprises from lower to upper folded yoke 11, magnet steel 12 and the pole piece 13 of establishing successively.
Described magnet steel 12 comprises main magnet steel 120, the first secondary magnet steel 121, the second secondary magnet steel 122, the 3rd secondary magnet steel 123 and fourth officer magnet steel 124.Described pole piece 13 comprises main pole core 130, the first consequent pole core 131, the second consequent pole core 132, the 3rd consequent pole core 133 and the 4th width pole piece 134.Described main pole core 130, the first consequent pole core 131, the second consequent pole core 132, the 3rd consequent pole core 133 and the 4th width pole piece 134 corresponding folded be located at described main magnet steel 120, described the first secondary magnet steel 121, the second secondary magnet steel 122, the 3rd secondary magnet steel 123 and fourth officer magnet steel 124.
Described main magnet steel 120 is axial symmetry rectangular configuration, sets the symmetry axis that described main magnet steel 120 intersects vertically and is respectively Vx axle and Vy axle.Described main magnet steel 120 comprises the first side 1201, the second side 1202, the 3rd side 1203 and the 4th side 1204 of end to end setting.Described the first side 1201 arranges with 1202 opposing parallel intervals, described the second side, and described the first side 1201 is all parallel to described Vx axle with described the second side 1202.Described the 3rd side 1203 and 1204 opposing parallel intervals, the 4th side arrange, and described the 3rd side 1203 and the 4th side 1204 are all parallel to described Vy axle.Between every two adjacent side, connect by cambered surface transition.Along perpendicular to described the 3rd side 1203 and the 4th side 1204 directions, the center line Vx axle of described main magnet steel 120 is perpendicular to described the 3rd side 1203 and the 4th side 1204.
Described the first secondary magnet steel 121 and described the second secondary magnet steel 122 be relatively described the first side 1201 and described the second side 1202 intervals settings respectively, and between the two, form magnetic gap (not indicating).Described the 3rd secondary magnet steel 123 and described fourth officer magnet steel 124 be relatively described the 3rd side 1203 and described the 4th side 1204 opposing parallel intervals settings respectively, and form magnetic gap (not indicating).
In the plane being defined by described Vx axle, described Vy axle, set the described Vx axle of described main magnet steel 120 and the infall of described Vy axle is initial point, be that described main magnet steel 120 center is initial point, described the first secondary magnet steel 121 is along being parallel to described the first side 1201 directions towards departing from away from described Vy direction of principal axis, along perpendicular to described the 3rd side 1203 and the 4th side 1204 directions, the center line of described the first secondary magnet steel 121 is between described the 3rd side 1203 and described Vx axle.Described the second secondary magnet steel 122 is equally along being parallel to described the second side 1202 directions towards departing from away from described Vy direction of principal axis, along perpendicular to described the 3rd side 1203 and the 4th side 1204 directions, the center line of described the second secondary magnet steel 122 is between described the 4th side 1204 and described Vx axle.And described the first secondary magnet steel 121 is contrary with the offset direction of described the second secondary magnet steel 122.That is to say, described the first secondary magnet steel 121 towards described the 3rd secondary magnet steel 123 direction skews, that is, closes on described the 3rd secondary magnet steel 123 and arranges.Described the second secondary magnet steel 122 towards described fourth officer magnet steel 124 direction skews, that is, closes on described fourth officer magnet steel 124 and arranges.
Described the 3rd secondary magnet steel 123 is symmetrical set with the side 1203,1204 of the relative described main magnet steel 120 of described fourth officer magnet steel 124.
Described the first consequent pole core 131 and described the second consequent pole core 132 are respectively arranged with the first jut 1311 and the second jut 1321 near described main pole core 130 1 sides, described the first jut 1311 and the described Vx axle axial symmetry of described the second jut 1321 about described main magnet steel 120.That is to say, the side of described the first jut 1311 and the second jut 1321 relatively described main magnet steel 120 of difference and described main pole core 130 arranges.Described the first jut 1311 and the second jut 1321 are to close on described magnetic gap side from described the first consequent pole core 131 and described the second consequent pole core 132 to extend to form.The length of described the first jut 1311 and the second jut 1321 is less than respectively the length of described the first consequent pole core 131 and described the second consequent pole core 132.
Described yoke 11 is provided with four through holes 110, and described four through holes 110 are separately positioned on described the 3rd secondary magnet steel 123 head and the tail two ends and described fourth officer magnet steel 124 head and the tail two ends.Described four through holes 110 are mainly used in the location of described magnetic structure 1.
In addition, the length of described the first consequent pole core 131 is greater than the length of described the first secondary magnet steel 121, and the length of described the second consequent pole core 132 is greater than the length of described the second secondary magnet steel 122.In the time that described the first consequent pole core 131 and described the second consequent pole core 132 are stacked at described the first secondary magnet steel 121 and described the second secondary magnet steel 122 surface, the part of described the first consequent pole core 131 and described the second consequent pole core 132 exceeds respectively the end of described the first secondary magnet steel 121 and described the second secondary magnet steel 122, make described the first jut 1311 and the second jut 1321 respectively with the side 1201,1202 of described main magnet steel 120 just to arranging., the center of described the first jut 1311 and the second jut 1321 and described Vy axle overlaid.
Certainly, as the further improvement of above-mentioned execution mode, the length of described the first consequent pole core 131 equals the length of described the second consequent pole core 132, and the length of described the first secondary magnet steel 121 equals the length of described the second secondary magnet steel 122.Described the first jut 1311 and the second jut 1321 extend to form from the end of described the first consequent pole core 131 and the second consequent pole core 132 respectively simultaneously.
In addition, the present embodiment also provides a kind of magnetic speaker, and the magnetic structure providing in this enforcement has mainly been provided described magnetic speaker.
The magnetic structure that the utility model provides, by described the first secondary magnet steel 121 and described the second secondary magnet steel 122 are offset and are arranged in the opposite direction respectively about the direction that is parallel to described Vx axle, so just, can obtain at diagonal angle place more space, for structural design provides more possibility.
Simultaneously by being respectively arranged with the first jut 1311 and the second jut 1321 at described the first consequent pole core 131 and described the second consequent pole core 132 near described main pole core 130 1 sides, effectively improve because this kind of Magnetic field inhomogeneity that offset manner causes improved greatly thereby electromagnetism force unbalance is affected.
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 (9)
1. a magnetic structure, it is characterized in that, described magnetic structure comprises folded yoke of establishing successively, magnet steel and pole piece, described magnet steel comprises main magnet steel, the first secondary magnet steel and the second secondary magnet steel, described pole piece comprises the corresponding folded described main magnet steel that is located at, the main pole core of described the first secondary magnet steel and described the second secondary magnet steel, the first consequent pole core and the second consequent pole core, described main magnet steel comprises the first side of end to end setting, the 3rd side, the second side and the 4th side, described the first side and described the second side are oppositely arranged, described the 3rd side and described the 4th side are oppositely arranged, described the first secondary magnet steel and described the second secondary magnet steel respectively relatively described the first side and described the second interval, side arrange formation magnetic gap, along perpendicular to described the first side surface direction, the center line of described the first secondary magnet steel is between the center line and the 3rd side of described main magnet steel, the center line of described the second secondary magnet steel is between the center line and the 4th side of described main magnet steel, described the first consequent pole core and described the second consequent pole core are respectively arranged with the first jut and the second jut near described main pole core one side, described the first jut and relative described the first side and the setting of the second side respectively of described the second jut.
2. magnetic structure as claimed in claim 1, is characterized in that, described jut closes on described magnetic gap side from described pole piece and extends to form.
3. magnetic structure as claimed in claim 1, is characterized in that, the relatively described main magnet steel of described jut is symmetrical arranged.
4. magnetic structure as claimed in claim 1, it is characterized in that, described magnet steel also comprises the 3rd secondary magnet steel and fourth officer magnet steel, the 3rd interval, side of the relatively described main magnet steel of described the 3rd secondary magnet steel arranges formation magnetic gap, relatively described the 4th interval, side of described fourth officer magnet steel arranges formation magnetic gap, described the first secondary magnet steel closes on described the 3rd secondary magnet steel setting, and described the second secondary magnet steel closes on the setting of described fourth officer magnet steel.
5. magnetic structure as claimed in claim 4, is characterized in that, described pole piece also comprises corresponding folded the 3rd consequent pole core and the fourth officer pole piece that is located at described the 3rd secondary magnet steel and described fourth officer magnet steel.
6. magnetic structure as claimed in claim 1, is characterized in that, the length of described the first consequent pole core is greater than the length of described the first secondary magnet steel, and the length of described the second consequent pole core is greater than the length of described the second secondary magnet steel.
7. magnetic structure as claimed in claim 6, is characterized in that, the length of described the first consequent pole core equals the length of described the second consequent pole core, and the length of described the first secondary magnet steel equals the length of described the second secondary magnet steel.
8. the magnetic structure as described in claim 6 or 7, is characterized in that, the length of described jut is less than the length of described the first consequent pole core.
9. a magnetic speaker, is characterized in that, described magnetic speaker comprises as the magnetic structure as described in arbitrary in claim 1-8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674666.6U CN203608353U (en) | 2013-10-29 | 2013-10-29 | Magnetic circuit structure and electromagnetic loudspeaker using same |
| US14/448,623 US9131293B2 (en) | 2013-10-29 | 2014-07-31 | Magnetic assembly for speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674666.6U CN203608353U (en) | 2013-10-29 | 2013-10-29 | Magnetic circuit structure and electromagnetic loudspeaker using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203608353U true CN203608353U (en) | 2014-05-21 |
Family
ID=50721007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320674666.6U Expired - Fee Related CN203608353U (en) | 2013-10-29 | 2013-10-29 | Magnetic circuit structure and electromagnetic loudspeaker using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203608353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109803198A (en) * | 2018-12-30 | 2019-05-24 | 瑞声声学科技(深圳)有限公司 | Sounding device |
-
2013
- 2013-10-29 CN CN201320674666.6U patent/CN203608353U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109803198A (en) * | 2018-12-30 | 2019-05-24 | 瑞声声学科技(深圳)有限公司 | Sounding device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208638627U (en) | Loudspeaker | |
| CN207354581U (en) | Sound film, microphone device and electronic equipment | |
| CN201789618U (en) | Magnetic circuit structure and loudspeaker using same | |
| CN203608353U (en) | Magnetic circuit structure and electromagnetic loudspeaker using same | |
| CN203691623U (en) | Double magnetic circuit electromagnetic loudspeaker | |
| CN103338425B (en) | Microspeaker and assembly method thereof | |
| CN203984657U (en) | The diaphragm of loudspeaker | |
| CN106817659B (en) | Microspeaker with high woofer drivers | |
| CN203933199U (en) | Motor for receiver | |
| CN209526865U (en) | Loudspeaker | |
| CN203608348U (en) | Magnetic circuit system and loudspeaker using same | |
| CN206923035U (en) | Sound film, microphone device and electronic equipment | |
| CN204031439U (en) | Loud speaker | |
| CN203747994U (en) | Electromagnetism actuator | |
| US9986340B2 (en) | Loudspeaker | |
| CN203608352U (en) | Electromagnetic loudspeaker and magnetic circuit structure thereof | |
| CN206349905U (en) | A kind of linear vibration motor | |
| CN101977342B (en) | Loudspeaker | |
| CN205249475U (en) | Miniature sounder | |
| CN204557912U (en) | Magnetic adsorption combination teaching model | |
| CN203608349U (en) | Magnetic circuit system and electromagnetic loudspeaker using same | |
| CN203912171U (en) | Loudspeaker monomer | |
| CN202713593U (en) | Sounder | |
| CN203301725U (en) | Sounding device | |
| WO2020244208A1 (en) | Sound generating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170424 Address after: Singapore, Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee after: AAC MICROTECH (CHANGZHOU) Co.,Ltd. Patentee after: AAC TECHNOLOGIES Pte. Ltd. Address before: Wujin Nanxiashu town Jiangsu city Changzhou province 213167 Co-patentee before: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co.,Ltd. Patentee before: AAC MICROTECH (CHANGZHOU) Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181107 Address after: No. 8, 2 floor, 85 Cavendish Science Park Avenue, Singapore, Singapore Patentee after: AAC TECHNOLOGIES Pte. Ltd. Address before: Singapore, Ang Mo Kio 65 Street No. 10 techpoint Building 1 floor, No. 8 Co-patentee before: AAC MICROTECH (CHANGZHOU) Co.,Ltd. Patentee before: AAC TECHNOLOGIES Pte. Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20211029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |