CN203691629U - Magnetic yoke for hearing aid and moving iron unit - Google Patents
Magnetic yoke for hearing aid and moving iron unit Download PDFInfo
- Publication number
- CN203691629U CN203691629U CN201320867855.5U CN201320867855U CN203691629U CN 203691629 U CN203691629 U CN 203691629U CN 201320867855 U CN201320867855 U CN 201320867855U CN 203691629 U CN203691629 U CN 203691629U
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- Prior art keywords
- yoke
- sheet materials
- moving iron
- ring
- armature
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- Withdrawn - After Issue
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Abstract
The utility model provides a magnetic yoke for a hearing aid and a moving iron unit. The magnetic yoke for the hearing aid is formed by sequentially overlapping a plurality of pieces of square annular sheet materials, the uppermost 2-4 pieces of sheet materials are not closed and provided with notches; and the periphery of the sheet materials arranged at the middle position are provided with positioning blocks. A connecting mechanism of the magnetic yoke is arranged in the magnetic field of the magnetic yoke actually, thus the position of an armature connected with the connecting mechanism are arranged in the magnetic field of the magnetic yoke, the loss of the magnetic field is reduced, the vibration of the vibrating diaphragm is more accurate, and the moving iron unit using the magnetic yoke has higher fidelity and reproductivity of sounds.
Description
Technical field
The utility model relates to hearing aids technical field, more particularly, relates to a kind of hearing aids yoke and a kind of moving iron unit.
Background technology
Yoke is often referred to not production magnetic field (magnetic line of force) itself, soft magnetic material, the yoke of a magnetize line of force transmission in magnetic circuit generally adopt soft iron, A3 steel and the magnetically soft alloy that permeability is higher to manufacture, at some special occasions, yoke also useful Ferrite Material is manufactured.
In existing hearing aids structure, general yoke is to be made up of the iron plate welding of 6～10 same shapes, and in prior art, yoke adopts high permeability material to be made.It act as the outside bulk storage of the magnetic line of force that constraint induction coil produces, and makes using beam of magnetic line of force concentrate on yoke, mainly plays magnetic conduction effect.Its principle is the motion of the middle armature of armature driven unit in magnetic field, drives vibrating diaphragm vibration, sounds.Some has exceeded the magnetic force coverage of yoke yoke armature of the prior art.Just have the loss of magnetic force, cause there is flaw at vibrating diaphragm vibration sounding.
Utility model content
In view of this, the utility model provides a kind of moving iron unit that accurate yoke occurs and comprise described yoke that vibrates.
In order to solve the problems of the technologies described above, the utility model provides a kind of hearing aids yoke, stacks successively setting by multiple square ring sheet materials, and uppermost 2 ~ 4 ring-type sheet materials are not closed, leaving certain gaps uncovered by the economic plan; The ring-type sheet material periphery mediating is provided with locating piece.
Preferably, between described multiple square ring sheet material, weld.
The utility model also provides a kind of moving iron unit that comprises described hearing aids yoke, comprises yoke, vibrating diaphragm, and driven unit, wire, armature, linkage part is arranged in the housing of described upper shell and lower casing formation; It is characterized in that, described yoke stacks setting successively by multiple square ring sheet materials, and uppermost 2 ~ 4 ring-type sheet materials are not closed, leaving certain gaps uncovered by the economic plan; The ring-type sheet material periphery mediating is provided with locating piece; Coil is on described armature, and one end of armature is welded in described yoke, and the other end stretches out from the hole in the middle of yoke, and linkage part passes from described breach.
Preferably, between described multiple square ring sheet material, weld.
Preferably, described yoke is fixed in described housing by fixed block.
The yoke that the utility model provides is due to jagged, and linkage structure is actually the magnetic field that is positioned at described yoke, so the armature position that linkage structure connects is also positioned at the magnetic field of described yoke, has reduced the loss in magnetic field, makes the vibrations of vibrating diaphragm more accurate.Validity and the reduction degree of the moving iron unit that adopts this yoke to sound is higher.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, 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.
Fig. 1: existing hearing aids moves iron cellular construction schematic diagram;
Fig. 2: the moving iron cellular construction schematic diagram of hearing aids that the utility model provides;
Fig. 3: the yoke three-dimensional structure schematic diagram that the utility model provides;
Fig. 4: the yoke three-dimensional structure disassembly diagram that the utility model provides.
Embodiment
The utility model discloses the utility model a kind of moving iron unit that accurate yoke occurs and comprise described yoke that vibrates is provided.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out to clear, complete description, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on embodiment of the present utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model provides a kind of yoke, stacks successively setting by multiple square ring sheet materials, and uppermost 2 ~ 4 ring-type sheet materials are not closed, leaving certain gaps uncovered by the economic plan; The ring-type sheet material periphery mediating is provided with locating piece.Preferably, between described multiple square ring sheet material, weld.
The utility model also provides a kind of moving iron unit that comprises described yoke, comprises yoke, vibrating diaphragm, and driven unit, wire, armature, linkage part is arranged in the housing of described upper shell and lower casing formation; It is characterized in that, described yoke stacks setting successively by multiple square ring sheet materials, and uppermost 2 ~ 4 ring-type sheet materials are not closed, leaving certain gaps uncovered by the economic plan; The ring-type sheet material periphery mediating is provided with locating piece; Coil is on described armature, and one end of described armature is welded in described yoke, and the other end stretches out from the hole in the middle of yoke, and linkage part passes from described breach.Preferably, between described multiple square ring sheet material, weld.Preferably, described yoke is fixed in described housing by fixed block.
The yoke providing for prior art and moving iron unit, as shown in Figure 1, comprising: upper shell 81, lower casing 82, yoke 83, bindiny mechanism 85, vibrating diaphragm 87, armature 88, wire 89, coil 810.Can find out that the moving iron unit difference that the moving iron unit that provides in prior art and the utility model provide is, bindiny mechanism or claim link gear outside the magnetic field of yoke in prior art.
The utility model yoke has adopted a kind of novel structure, and as shown in Figure 2, this structure comprises shell 1, lower casing 2, yoke 3, locating piece 4, bindiny mechanism 5, yoke breach 6, vibrating diaphragm 7, armature 8, wire 9, coil 10.Coil 10, above armature 8, is given coil electricity, and armature will become magnet, and one end of armature is fixed in yoke by the mode of welding.Also have one end to stretch out from the hole in the middle of yoke, under "on" position, yoke and just have antipodal magnetic pole at the inner armature of yoke.The length that lengthens yoke part in the moving iron unit that the utility model provides, a breach is left on the top of the large face of yoke, and (as shown in Figure 2) passed in the middle of described breach by bindiny mechanism.Such advantage is, the loss in the magnetic field of minimizing makes the vibrations of vibrating diaphragm more accurate.
On the facet of the utility model yoke, have respectively the square of 2 kicks, the effect of this structure is location, makes it more can be arranged on shell.The composition structure of yoke is by shown in Fig. 3 and Fig. 4.In Fig. 4, preferably use 10 square ringshaped magnet welding to form yoke, wherein establish flat thin magnet 31 jaggy for two of surface, make bindiny mechanism connect armature and vibrating diaphragm through described breach, and middle two flat thin magnets 33 that are provided with fixed block can make yoke be fixed on shell, make yoke more stable.Remaining flat thin magnet 32 is all identical with prior art.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a hearing aids yoke, stacks setting successively by multiple square ring sheet materials, it is characterized in that, uppermost 2 ~ 4 ring-type sheet materials are not closed, leaving certain gaps uncovered by the economic plan; The ring-type sheet material periphery mediating is provided with locating piece.
2. hearing aids yoke according to claim 1, is characterized in that, between described multiple square ring sheet materials, welds.
3. a moving iron unit that comprises hearing aids claimed in claim 1 yoke, comprises yoke, vibrating diaphragm, and driven unit, wire, armature, linkage part is arranged in the housing of described upper shell and lower casing formation; It is characterized in that, described yoke stacks setting successively by multiple square ring sheet materials, and uppermost 2 ~ 4 ring-type sheet materials are not closed, leaving certain gaps uncovered by the economic plan; The ring-type sheet material periphery mediating is provided with locating piece; Coil is on described armature, and one end of armature is welded in described yoke, and the other end stretches out from the hole in the middle of yoke, and linkage part passes from described breach.
4. moving iron according to claim 3 unit, is characterized in that, between described multiple square ring sheet materials, welds.
5. moving iron according to claim 3 unit, is characterized in that, described yoke is fixed in described housing by fixed block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867855.5U CN203691629U (en) | 2013-12-27 | 2013-12-27 | Magnetic yoke for hearing aid and moving iron unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867855.5U CN203691629U (en) | 2013-12-27 | 2013-12-27 | Magnetic yoke for hearing aid and moving iron unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203691629U true CN203691629U (en) | 2014-07-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320867855.5U Withdrawn - After Issue CN203691629U (en) | 2013-12-27 | 2013-12-27 | Magnetic yoke for hearing aid and moving iron unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203691629U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104581583A (en) * | 2014-12-31 | 2015-04-29 | 苏州恒听电子有限公司 | Novel moving iron unit and iron core producing method |
| CN104754482A (en) * | 2013-12-27 | 2015-07-01 | 苏州和林精密科技有限公司 | Magnetic yoke for hearing aid and moving iron unit |
| CN109891912A (en) * | 2016-10-26 | 2019-06-14 | 阿尔卑斯阿尔派株式会社 | Sounding device and its manufacturing method |
-
2013
- 2013-12-27 CN CN201320867855.5U patent/CN203691629U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104754482A (en) * | 2013-12-27 | 2015-07-01 | 苏州和林精密科技有限公司 | Magnetic yoke for hearing aid and moving iron unit |
| CN104754482B (en) * | 2013-12-27 | 2018-04-20 | 苏州和林微纳科技有限公司 | A kind of hearing aid yoke and a kind of dynamic iron unit |
| CN104581583A (en) * | 2014-12-31 | 2015-04-29 | 苏州恒听电子有限公司 | Novel moving iron unit and iron core producing method |
| CN104581583B (en) * | 2014-12-31 | 2018-12-11 | 苏州逸巛声学科技有限公司 | A kind of preparation method of novel moving iron unit and iron core |
| CN109891912A (en) * | 2016-10-26 | 2019-06-14 | 阿尔卑斯阿尔派株式会社 | Sounding device and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140702 Effective date of abandoning: 20180420 |
|
| AV01 | Patent right actively abandoned |