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Electro-acoustic converter

An electro-acoustic converter and electrical connection technology, which is applied in the direction of sensors, hearing aids, electrical components, etc., can solve the problems of broken wires, difficult handling of wires, broken wires, etc., and achieve the effect of suppressing wire disconnection

Inactive Publication Date: 2005-08-17
COSMIC TRADING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the conventional electroacoustic transducer having the above-mentioned structure, (1) since the wire constituting the coil is extremely thin, it is difficult to handle the end of the wire, and (2) since the signal input terminal portion (terminal plate) is fixed to the On the housing, when the end of the wire is connected to the signal input terminal (terminal board), there is a possibility of disconnection. For these reasons, it is not easy

Method used

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Embodiment Construction

[0046] Hereinafter, preferred embodiments of the electroacoustic transducer of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same elements are given the same reference numerals, and repeated description thereof will be omitted.

[0047] As shown in FIGS. 1 and 2 , an electroacoustic transducer 1 has a case 2 and a diaphragm unit 3 . The case 2 includes an upper case 4 and a lower case 5 . The upper case 4 and the lower case 5 are fixed to each other by laser welding, an adhesive, etc. with the vibrating membrane unit 3 interposed therebetween. The lower case 5 has a box shape with an open top, and the top opening is covered with the diaphragm unit 3 as shown in FIG. 4 . Figure 3 and Figure 5 As shown, the drive unit part 10 is arranged in the space partitioned by the lower case 5 and the diaphragm unit part 3 . The drive unit portion 10 is fixed to the spacer 6 by laser welding or the ...

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Abstract

A electroacoustic transducers bobbin unit includes a base portion and a coil winding portion on which a conductor is wound. A hole is formed in a central part of the base portion to allow an armature to pass through. Coil side terminals to which ends of the conductor are fixed and signal input terminals to which an external signal is entered are provided at opposite ends of the base portion with the hole located in between. The coil side terminals are electrically connected to their corresponding signal input terminals inside the base portion. A coil is formed on the coil winding portion by winding the conductor. The ends of the conductor are wound around the respective coil side terminals and fixed thereto by arc welding.

Description

technical field [0001] The present invention relates to an electroacoustic transducer used in hearing aids and the like. Background technique [0002] As such an electroacoustic transducer, for example, an electroacoustic transducer disclosed in JP-A-58-99099 is known. The electroacoustic transducer disclosed in Japanese Unexamined Patent Application Publication No. 58-99099 includes a case as an outer case, and a drive unit portion arranged in the case. The drive unit is composed of a plate member, a coil, a pair of magnets, and a yoke. The plate-like component is composed of a base plate, side plates extending parallelly from both ends of the base plate, and an armature extending from the center of the base plate to between the side plates. The coil is installed in contact with the inner surface of the side plate portion of the plate-shaped member, and a pair of magnets are respectively fixed on opposite surfaces inside the yoke. Both side surfaces of the yoke are fixed...

Claims

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Application Information

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IPC IPC(8): H04R11/02H04R9/04H04R25/00
CPCH04R9/046
Inventor 漆畑洁铃木智也
Owner COSMIC TRADING CO LTD