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Electro-acoustic transducer and a method for assembly thereof

A technology of electro-acoustic transducers and transducers, which is applied in the direction of transducer shells/cabinets/brackets, sensors, electrical components, etc., which can solve the problem of not forming an integral part of the lead frame, so as to simplify the assembly process and reduce costs Effect

Inactive Publication Date: 2008-01-09
SONION HORSENS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A disadvantage of the method proposed in US5,625,700 is that the substrate forming areas need to be manufactured separately, i.e. they do not form an integral part of the lead frame

Method used

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  • Electro-acoustic transducer and a method for assembly thereof
  • Electro-acoustic transducer and a method for assembly thereof
  • Electro-acoustic transducer and a method for assembly thereof

Examples

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Embodiment Construction

[0055] A first aspect of the invention relates to a method for assembling an electroacoustic transducer using an automated assembly line. To achieve this aspect, a series of component carriers is interconnected to form a combined component carrier strip. Each component carrier includes at least one transducer element. A plurality of interconnected component carriers forming a combined strip thus comprise a plurality of identical transducer elements. Each component carrier includes one or more alignment marks so that a given component carrier comprising a given transducer element can be aligned with other component carriers comprising other types of transducer elements.

[0056] Referring now to FIG. 1 , a strip 101 of interconnected component carriers is depicted. Each component carrier comprises a frame 102, 103 having alignment members 104, 105 disposed therein. The alignment members 104, 105 in Fig. 1 comprise through holes or openings, but other implementations of align...

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Abstract

A miniature electro-acoustic transducer is provided which includes a magnetic circuit. The magnetic circuit includes a permanent magnet assembly adapted to generate a magnetic flux in an air gap, the permanent magnet assembly itself included first and second permanent magnets arranged on opposite sides of the air gap. A magnetically permeable outer housing portion forms an integral part of the magnetic circuit and a voice coil is positioned in the air gap, the voice coil being operatively connected to a diaphragm.

Description

technical field [0001] The present invention relates to a miniature electroacoustic transducer comprising substantially concentrically arranged ring magnets and a central magnet, wherein the outer transducer housing part forms an integral part of the magnetic circuit of the electroacoustic transducer. The present invention further relates to an improved automatic assembly method, wherein a fully automatic assembly line is used to assemble the miniature electro-acoustic transducer according to the present invention. Background technique [0002] US 5,625,700 discloses a method for assembling an electroacoustic transducer. The method proposed in US 5,625,700 provides a simplified assembly process suitable for automatic assembly of electro-acoustic transducers. The method of US 5,625,700 involves production steps comprising forming a pole piece portion and forming a lead frame having a plurality of substrate forming regions thereon, wherein each substrate forming region has le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R13/00H04R31/00
CPCH04R9/025H04R2209/024H04R2209/022H04R31/006H04R1/02H04R9/02H04R31/00
Inventor K·泽伦森M·H·默勒C·劳森
Owner SONION HORSENS