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Speaker voice coil tool

A loudspeaker and tooling technology, which is applied in the field of electroacoustics, can solve the problems of foreign matter falling into the magnetic circuit gap and positioning deviation, and achieve the effects of improving the assembly qualification rate, accurate positioning, and reducing the risk of foreign matter entering the magnetic circuit gap

Active Publication Date: 2013-06-12
WUXI JIEFU ELECTROACOUSTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the traditional loudspeaker voice coil tooling is used in this radial magnetic circuit structure with auxiliary magnets, it is prone to positioning deviation, and there are defects such as foreign objects falling into the magnetic circuit gap.

Method used

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  • Speaker voice coil tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Such as figure 1 As shown, the loudspeaker voice coil tooling in this embodiment is composed of tooling body 1 and ferromagnetic component 2. The tooling body 1 is hollow inside, and a protective partition 1c is provided inside the tooling body 1. The plane of the protective partition 1c Perpendicular to the axial direction of the tooling body 1, the edge of the protective partition 1c extends outwards and is integrated with the inner wall of the tooling body 1; a ferromagnetic component 2 is tightly bonded to the upper surface of the protective partition 1c.

[0017] In a specific application, when the tooling is installed in the loudspeaker magnetic circuit structure, the bottom of the protective partition 1c in the tooling body 1 is in contact with the top of the secondary magnet in the speaker magnetic circuit structure, and the ferromagnetic component 2 is magnetized and attracted to the secondary magnet. The loudspeaker voice coil tooling is in close contact with ...

Embodiment 2

[0019] Such as Figure 2~Figure 5 As shown, the loudspeaker voice coil tooling in this embodiment is also composed of two parts, the tooling body 1 and the ferromagnetic component 2. The difference between it and the embodiment 1 is that a through hole 1d is opened on the protective partition 1c, so that The ferromagnetic component 2 is provided with an inner hole 2a communicating with the through hole 1d. The function of the through hole 1d and the inner hole 2a is to keep the air pressure in the space formed by the bottom of the protective partition 1c and the magnetic circuit structure in balance with the external atmospheric pressure, so as to avoid the formation of negative pressure when the tooling is taken out, causing damage to the voice coil or tooling ; At the same time, the weight of the ferromagnetic component 2 can also be reduced.

[0020] Preferably, the through hole 1d on the protective partition 1c and the inner hole 2a on the ferromagnetic component 2 are op...

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Abstract

The invention relates to a speaker voice coil tool provided with a ferromagnetic component. According to the technical scheme provided by the invention, the speaker voice coil tool comprises a tool body, the interior of which is hollow. The speaker voice coil tool is characterized in that: a protective partition board is arranged in the tool body, the plane of the protective partition board is vertical to the axis direction of the tool body, and the edge of the protective partition board is extended outwards and connected into a whole with the inner wall of the tool body; and the ferromagnetic component is tightly combined on the upper surface of the protective partition board. The speaker voice coil tool has simple, skilful and reasonable structure; and by arranging the protective partition board and the ferromagnetic component in the tool body, the risk that foreign matters enter the magnetic circuit clearance is reduced, and the speaker voice coil tool is positioned more accuratelywhen the magnetic circuit structure of a speaker is assembled and is favorable for improving the assembly qualification rate of the speaker.

Description

technical field [0001] The invention belongs to the field of electro-acoustic technology, and relates to a loudspeaker voice coil tooling (or "sound gauge"), in particular to a new loudspeaker voice coil tooling provided with ferromagnetic components. Background technique [0002] Loudspeaker voice coil tooling is used to insert the lower part of the tooling into the inner hole of the voice coil during the speaker assembly process to form a voice coil sound gauge assembly, and then insert the voice coil sound gauge assembly into the gap of the speaker magnetic circuit. To the role of positioning and limiting. The traditional speaker voice coil tooling is a tubular structure with a hollow interior made of plastic or metal. The diameter of the outer wall of the speaker voice coil tooling is the same as the diameter of the inner hole of the voice coil. [0003] In the prior art, speakers used in LCD, PDP and other flat-panel video devices generally adopt a radial magnetic circ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R9/02H04R9/04
Inventor 蒋加星蒋正祥陈吾剑
Owner WUXI JIEFU ELECTROACOUSTIC