Loudspeaker voice coil tooling
A loudspeaker and tooling technology is applied in the field of loudspeaker voice coil tooling with adjustable diameter, which can solve the problems affecting the qualified rate of loudspeaker assembly, poor matching of the inner holes of the voice coil, inaccurate voice coils, etc. The effect of thermal expansion and cold contraction, improving the assembly qualification rate
Active Publication Date: 2011-12-21
WUXI JIEFU ELECTROACOUSTIC
View PDF4 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0022] Such as 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 kept in balance 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 structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/02
Inventor 蒋加星吴晓军
Owner WUXI JIEFU ELECTROACOUSTIC