Shielding casing for moving iron unit and assisted listening equipment using shielding casing

A technology for shielding shells and hearing aids, applied in hearing aids, electrical components, etc., which can solve the problems of large influence on electromagnetic shielding performance, complicated combined welding process, and incomplete electromagnetic shielding, so as to improve electromagnetic shielding performance and sound production Good, simple and reasonable structure

Inactive Publication Date: 2013-05-01
SUZHOU HEARONIC ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing electromagnetic shielding shells generally have incomplete electromagnetic shielding, but the electromagnetic radiation is high, the combined welding process is complicated, and the electromagnetic shielding performance of the product is greatly affected; furthermore, the mechanical structure design of the sound outlet of the existing shielding shell is decided It can only be manufactured by first stretching, cutting, and then secondary processing, which is high in cost and difficult in process

Method used

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  • Shielding casing for moving iron unit and assisted listening equipment using shielding casing
  • Shielding casing for moving iron unit and assisted listening equipment using shielding casing
  • Shielding casing for moving iron unit and assisted listening equipment using shielding casing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] like figure 1 As shown, as a first preferred embodiment, a shielding shell of a moving iron unit includes a shell body 8 and a base 1, the top of the shell body 8 is provided with a sound transmission port and a sound pipe is extended outward from the sound transmission port. 9. The housing body 8 is connected to the base 1 .

[0027] In the shielding shell of the above-mentioned moving iron unit, the shell body 8 is integrally stretched and formed, and the shell body 8 is in the shape of a hollow cylinder, wherein the shell body 8 is clamped with the base 1 .

[0028] In the above-mentioned embodiment 1, the shell body 8 is integrally stretched and formed, which greatly improves the electromagnetic shielding performance of the shell body 8, and does not require secondary processing. Under the condition that the sound quality remains unchanged, the manufacturing process is simple and reduces It reduces the labor intensity, improves the production efficiency and reduces...

Embodiment 2

[0030] like figure 2 As shown, as the second preferred embodiment, the rest is the same as Embodiment 1, the difference is that a hearing aid device with a moving iron unit shielding the casing includes a casing body 8 and a moving iron arranged in the casing body 8 In the sound transmission unit, the housing body 8 is welded to the base 1, and the base 1 is provided with a limiting bump.

[0031] The housing body 8 is also provided with a moving iron sound transmission unit. The moving iron sound transmission unit includes a diaphragm 7, a diaphragm holder 10, a vibration conducting rod 5 and a vibration device. The diaphragm holder 10 is fixedly arranged in the housing body 8, and the diaphragm One end of the diaphragm 7 is pasted on the diaphragm frame 10, and the other end of the diaphragm 7 is connected to the vibration device through the vibration conducting rod 5.

[0032] Described vibrating device comprises armature 4 and is arranged on the magnetic mechanism of des...

Embodiment 3

[0035] As yet another preferred embodiment, the rest is the same as Embodiment 1 or 2, except that the diaphragm 7 is located near the sound transmission port and above the vibrating device, and 18 through holes 11 are uniformly opened on the diaphragm 7 .

[0036] In the above-mentioned embodiment 3, the vibrating membrane 7 is located close to the sound transmission port and above the vibrating device, which can better transmit the vibration from the sounding tube 9 through the sound transmission port, effectively ensuring the quality of the sound. In addition, the vibrating film 7 is A plurality of through holes 11 are opened, and the through holes 11 are circular, which can reduce the weight of the diaphragm 7, enhance the high frequency output, and increase the response bandwidth.

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Abstract

The invention relates to a shielding casing for a moving iron unit and assisted listening equipment using the shielding casing. The shielding casing for the moving iron unit comprises a casing body and a base, wherein a speaking terminal is arranged at the top of the casing body; the speaking terminal extends outwards to form a sounding tube; and the casing body is connected with the base. Compared with the prior art, the shielding casing disclosed by the invention has the characteristics that the casing body is formed by integrally stretching, so that the electromagnetic shielding performance of the casing body is greatly improved; no secondary processing is needed; and under the condition that the sound quality is kept unchanged, the manufacturing process is simple, the work strength is reduced, the production efficiency is increased and the production cost is reduced; magnetic mechanisms at the upper end and the lower end of an armature drive the armature to vertically vibrate; a vibrating diaphragm is driven by a vibration conducting rod to vibrate and sound from the sounding tube; the shielding casing can be directly arranged in ears and is simple and reasonable in structure, favorable in sounding effect and convenient in use; and the vibrating diaphragm is close to the speaking terminal and is positioned above the vibrating device and can be used for transmitting the vibration from the sounding tube through the speaking terminal so as to effectively ensure sounding quality.

Description

technical field [0001] The invention relates to a shielding shell and hearing-aid equipment thereof, in particular to a shielding shell of a moving iron unit with simple manufacturing process and good shielding performance and hearing-aid equipment thereof. Background technique [0002] Hearing aids are portable hearing aids that are used by people who are hard of hearing. In order to meet a large number of individual requirements, hearing aids are produced in different designs, such as behind-the-ear hearing aids, hearing aids with external earphones and in-the-ear hearing aids, for example also concha hearing aids or ear canal hearing aids. These hearing aids, listed as examples, are worn on the outer ear or in the ear canal. Additionally, bone conduction hearing aids, implantable or vibrotactile hearing aids are also available in the market. Among them, stimulation of the impaired hearing is performed either mechanically or electrically. [0003] At present, the electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R25/00
Inventor 李梁周巍
Owner SUZHOU HEARONIC ELECTRONICS
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