Speaker voice coil tool
A loudspeaker and tooling technology, which is applied in the field of speaker voice coil tooling with adjustable diameter, can solve the problems that affect the qualified rate of speaker assembly, the poor matching degree of the inner hole of the voice coil, and the inaccuracy of the voice coil, so as to overcome the adverse effects, overcome the Thermal expansion and contraction, the effect of improving the assembly pass rate
Active Publication Date: 2014-02-19
WUXI JIEFU ELECTROACOUSTIC
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Problems solved by technology
However, because the sound gauge is made of plastic or metal, thermal expansion and contraction are likely to occur due to temperature changes, resulting in changes in the diameter of the voice coil tooling. For speakers with a small magnetic circuit gap, the diameter of the voice coil tooling changes. Finally, the matching degree with the inner hole of the voice coil is poor, which may easily cause the position of the voice coil in the magnetic circuit gap to be inaccurate, and affect the assembly pass rate of the speaker product
Method used
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[0021] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0022] like Figure 1~Figure 4 As shown, the loudspeaker voice coil tooling includes a hollow tooling body 1, the inner wall of the tooling body 1 radially extends a certain distance to the center to form a protective partition 1d, and the plane of the protective partition 1d is perpendicular to the plane of the tooling body 1 In the axial direction, the protective partition 1d is in a non-closed form, and the protective partition 1d is provided with an axially penetrating through hole 1e, so that the air pressure in the space formed by the bottom of the protective partition 1d and the magnetic circuit structure is balanced with the external atmospheric pressure , to avoid the formation of negative pressure, when taking out the tooling, the voice coil or tooling will not be damaged. Preferably, the shape of the through hole 1 e is the same as that of the cross...
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The invention relates to a diameter-adjustable speaker voice coil tool, which comprises a hollow tool body. A protection baffle is arranged in the tool body. The speaker voice coil tool is characterized in that a compression spring groove is arranged on the tool body at a position above the protection baffle, part of the tool body is divided by the compression spring groove into a compression spring piece which can be elastically shrunk inwards, and when a voice coil is assembled with the tool, the voice coil is positioned through the compression spring piece. The speaker voice coil tool has the advantages that the structure is simple, ingenious and reasonable; since the compression spring piece with certain elasticity is arranged on the tool body, the compression spring piece is arranged in the compression spring groove and the diameter of the tool can be adjusted through the compressive change of the compression spring piece, the adverse impact that the voice coil tool is expanded with heat and contracted with cold because the temperature changes is avoided; and when the speaker voice coil tool is used for assembling the magnetic circuit structure of a speaker, the positioning is more accurate and the assembling qualification rate of the speaker is improved.
Description
technical field [0001] The invention belongs to the field of electroacoustic technology, and relates to a loudspeaker voice coil tooling (or "sound gauge"), in particular to a speaker voice coil tooling with an adjustable diameter. 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, the magnetic circuit structure of speakers used in LCD, PDP and other flat-panel video equipment is still generally cir...
Claims
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IPC IPC(8): H04R9/02
Inventor 蒋加星吴晓军
Owner WUXI JIEFU ELECTROACOUSTIC