CN203691630U - Moving iron unit for hearing aid - Google Patents
Moving iron unit for hearing aid Download PDFInfo
- Publication number
- CN203691630U CN203691630U CN201320867902.6U CN201320867902U CN203691630U CN 203691630 U CN203691630 U CN 203691630U CN 201320867902 U CN201320867902 U CN 201320867902U CN 203691630 U CN203691630 U CN 203691630U
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- armature
- magnet
- moving iron
- iron unit
- described armature
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Abstract
The utility model provides a moving iron unit for a hearing aid. The moving iron unit comprises an armature, a coil, a coil plate, a magnet and a U-shaped magnet outer shell, wherein one end of the U-shaped magnet outer shell is connected with the coil plate, the other end is welded with the armature; the lower part of the armature passes through a U-shaped groove of the U-shaped magnet outer shell; magnetic yokes are arranged in the U-shaped groove of the U-shaped magnet outer shell, and are arranged on two sides of the lower part of the armature; and one end, welded with the U-shaped magnet outer shell, of the lower part of the armature is further welded with the magnet, thereby an opening of the U-shaped magnet outer shell is sealed. According to the moving iron unit for the hearing aid, the U-shaped magnet outer shell is additionally arranged, the magnet is used for filling the space of the lower part of the armature in the U-shaped magnet outer shell to achieve seamless effect, the magnetic field cannot disappear, and the sound accuracy rate is improved; or the magnetic yoke is adopted and the magnet is used for sealing the opening, the magnetic field disappearance caused by the gap is compensated by using the magnet, and the sound accuracy rate is improved.
Description
Technical field
The utility model relates to hearing aids technical field, more particularly, relates to the moving iron of a kind of hearing aids 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.
In existing hearing aids structure, in technique, as shown in Figure 1, moving iron unit comprises: upper shell 81, lower casing 82, yoke 83, bindiny mechanism 85, vibrating diaphragm 87, armature 88, wire 89, coil 810.General yoke is to be made up of the iron plate welding of 6～10 same shapes.Yoke is made by welding procedure, in the middle of each layer of iron plate, has certain gap, thereby causes magnetic field loss.The processing mode more complicated of the yoke of multi-disc welding, is subject to the impact of monolithic welding iron plate larger.
Utility model content
In view of this, the utility model provides a kind of moving iron unit, effectively prevents that magnetic field from losing from original yoke gap.
In order to solve the problems of the technologies described above, the utility model provides the moving iron of a kind of hearing aids unit, comprises armature, and described armature comprises upper and lower, and is connected and be the U-shaped keeping flat by arc transition; Be wound in the coil of the bottom of described armature; Fix the coil plate of described coil bottom, be arranged at the magnet of described armature one end.Described hearing aids also comprises U magnet shell with moving iron unit, and one end connects described coil plate, the other end and the welding of described armature; The bottom of described armature is passed from the U-lag of described U magnet shell; In the U-shaped groove of described U magnet shell, be also provided with yoke, be positioned at the both sides of described armature bottom; One end in described U magnet shell and the welding of described armature bottom is also welded with magnet, seals the opening of described U magnet shell.
Preferably, the top of described armature is sheet, and bottom is strip or sheet.
Preferably, the top of described armature covers the bottom of described armature completely.
Preferably, 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.
Preferably, described moving iron unit also comprises drive unit, and described armature bottom connects vibrating diaphragm by described drive unit.
The moving iron unit coil that the utility model provides is fixed in coil plate, prevents that rocking of coil from coming off, and gives coil electricity, and armature will become magnet, and one end of armature and magnet shell are welded and fixed.Also have one end from stretching out in the middle of magnet shell, under "on" position, yoke and just have antipodal magnetic pole at the inner armature of yoke.At the inner mode fixed magnet with welding of large face of magnet shell, one end of armature and magnet shell are fixed, on the fixing face of armature and magnet shell, weld magnet, armature is subject to the power of coil current, produce obstructed magnetic force, the vibrations that occur in magnet enclosure, armature front end is fixed with driver part, driver part connects generation film, finally sounds.Increased U magnet shell, it is seamless that use magnet is filled the space of described armature bottom in U magnet shell, and magnetic field can not disappear, and has improved the accuracy rate of sound.Or use yoke and with magnet seal, do like this and supplemented the magnetic field of causing due to gap with magnet and disappear, improved the accuracy rate of sound.
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 production frock partial 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 moving iron of a kind of hearing aids unit, as shown in Figure 2, comprise armature 8, be wound in the coil 1 on described armature, the coil plate 2 of fixing described coil 1, driver part 5, is arranged at the magnet 4 of described armature one end.Described armature comprises upper and lower, is connected and is the U-shaped keeping flat by arc transition.Described coil 1 is wound in the bottom of described armature 8, and described coil 1 bottom is welded with coil plate 2.Described coil 1 stretches out and is connected with wire 9.
The moving iron of described hearing aids unit also comprises U magnet shell 3, and one end connects described coil plate 2, and the other end welds in described armature 8; The bottom of described armature 8 is passed from the U-lag of described U magnet shell; In the U-shaped groove of described U magnet shell, be also provided with yoke 6, be positioned at the both sides of described armature bottom; One end in described U magnet shell and the welding of described armature bottom is also welded with magnet, seals the opening of described U magnet shell.
The top of described armature 8 is sheet, and bottom is strip or sheet.Preferably, the top of described armature 8 covers the bottom of described armature completely.Preferably, described yoke 6 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.Preferably, described moving iron unit also comprises drive unit, and described armature bottom connects vibrating diaphragm 7 by described drive unit.
In the utility model, coil 1 is around armature 8, and coil 1 is fixed in coil plate 2, prevents that rocking of coil 1 from coming off, and gives coil electricity, and armature 8 will become magnet, and one end of armature and magnet shell 3 are welded and fixed, and also has one end to stretch out in the middle of magnet shell.Under "on" position, yoke 6 and the armature 8 in yoke inside just have antipodal magnetic pole.At the inner mode fixed magnet with welding of large face of magnet shell 3, one end of armature 8 and magnet shell 3 are fixing, on the fixing face of armature and magnet shell, weld magnet, armature is subject to the power of coil current, produce obstructed magnetic force, the vibrations that occur in magnet enclosure, armature front end is fixed with driver part, driver part connects generation film, finally sounds.
Magnet shell is connected on material strip, as shown in Figure 3 in assembling.On magnet shell, there is location hole, realize the continuous production of rapid, high volume by automaton.According to the utility model, described in contain U magnet shell moving iron unit processing tool as shown in Figure 3, comprise that U magnet shell n5 is connected on material strip, assembles by automation equipment.On material strip, there is location hole n1.On material strip, there is the n2 that steps down of product motor.On material strip, there is deburring technique.2 of the front and back face n3 of product is used for the motor of positioning product.Product side n4 is also for positioning product motor.
The utility model, on prior art basis, has increased U magnet shell, and it is seamless that use magnet is filled the space of described armature bottom in U magnet shell, and magnetic field can not disappear, and has improved the accuracy rate of sound.Or use yoke and with magnet seal, do like this and supplemented the magnetic field of causing due to gap with magnet and disappear, improved the accuracy rate of sound.
The composition structure of the utility model yoke as shown in Figure 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 moving iron unit for hearing aids, comprises armature, and described armature comprises upper and lower, and is connected and be the U-shaped keeping flat by arc transition;
Be wound in the coil of the bottom of described armature;
The coil plate of fixing described coil bottom,
Be arranged at the magnet of described armature one end,
It is characterized in that:
Also comprise U magnet shell, one end connects described coil plate, the other end and the welding of described armature;
The bottom of described armature is passed from the U-lag of described U magnet shell;
In the U-shaped groove of described U magnet shell, be also provided with yoke, be positioned at the both sides of described armature bottom;
One end in described U magnet shell and the welding of described armature bottom is also welded with magnet, seals the opening of described U magnet shell.
2. moving iron unit for a kind of hearing aids according to claim 1, is characterized in that, the top of described armature is sheet, and bottom is strip or sheet.
3. moving iron unit for a kind of hearing aids according to claim 2, is characterized in that, the top of described armature covers the bottom of described armature completely.
4. moving iron unit for a kind of hearing aids according to claim 1, 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.
5. moving iron unit for a kind of hearing aids according to claim 1, is characterized in that, described moving iron unit also comprises drive unit, and described armature bottom connects vibrating diaphragm by described drive unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867902.6U CN203691630U (en) | 2013-12-27 | 2013-12-27 | Moving iron unit for hearing aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867902.6U CN203691630U (en) | 2013-12-27 | 2013-12-27 | Moving iron unit for hearing aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203691630U true CN203691630U (en) | 2014-07-02 |
Family
ID=51013478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320867902.6U Withdrawn - After Issue CN203691630U (en) | 2013-12-27 | 2013-12-27 | Moving iron unit for hearing aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203691630U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104754483A (en) * | 2013-12-27 | 2015-07-01 | 苏州和林精密科技有限公司 | Moving iron unit for hearing aid |
-
2013
- 2013-12-27 CN CN201320867902.6U patent/CN203691630U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104754483A (en) * | 2013-12-27 | 2015-07-01 | 苏州和林精密科技有限公司 | Moving iron unit for hearing aid |
| CN104754483B (en) * | 2013-12-27 | 2018-04-03 | 苏州和林微纳科技有限公司 | A kind of audiphone dynamic iron unit |
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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: 20180403 |
|
| AV01 | Patent right actively abandoned |