Loudspeaker plus secondary magnetic auxiliary device and method

An auxiliary device and speaker technology, applied in the direction of sensors, electrical components, etc., can solve problems such as assembly difficulties and low efficiency, and achieve the effects of avoiding secondary magnetic jumping, improving assembly efficiency, and improving consistency and accuracy

Active Publication Date: 2021-01-29
东莞市融贤实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a loudspeaker plus secondary magnetic auxiliary device and method, which are used to solve the disadvantages of difficult assembly and low efficiency caused by the repulsion of the main magnetic and secondary magnetic polarities, and to improve the consistency and accuracy of the magnetic circuit

Method used

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  • Loudspeaker plus secondary magnetic auxiliary device and method
  • Loudspeaker plus secondary magnetic auxiliary device and method
  • Loudspeaker plus secondary magnetic auxiliary device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]This embodiment provides a speaker plus auxiliary magnetism auxiliary device, which is used to assemble the auxiliary magnetism into the main magnetism module.

[0032]Please refer tofigure 1 The main magnetic module includes an assembled U iron 11, a main magnet 12, and a washer 13, the main magnet 12 is arranged in the U iron 11, the washer 13 is arranged above the main magnet 12, and the The outer diameter of the partition 13 is greater than or equal to the outer diameter of the main magnet 12 and greater than or equal to the outer diameter of the secondary magnet 14, and an annular gap 15 is formed between the washer 13 and the U iron 11. Optionally, a gasket 16 is further provided between the bottom surface of the U iron 11 and the main magnet 12. The gasket 16 may be an independent gasket or a convex structure (back convex) on the bottom surface of the U iron 11. Optionally, the outer diameter of the main magnet 12 is greater than or equal to the outer diameter of the auxil...

Embodiment 2

[0042]Please refer toimage 3 This embodiment provides an improved speaker plus auxiliary magnetic auxiliary device based on embodiment 1.

[0043]The device of this embodiment includes the auxiliary magnetic guide gauge 20 disclosed in the first embodiment, and also includes the auxiliary magnetic guide gauge 30 used in conjunction with the auxiliary magnetic guide gauge 20.

[0044]The outer diameter of the auxiliary magnetic attraction gauge 30 matches the inner diameter of the positioning portion of the auxiliary magnetic guide gauge 20 and can be inserted into the auxiliary magnetic guide gauge 20. The sub-magnetic attraction gauge 30 is provided with a sub-magnetic magnet 31 inside. The lower surface of the sub-magnetic magnet 31 and the upper surface of the sub-magnet 14 (figure 2 The B surface shown in the) has opposite polarities and attracts each other. The lower surface of the secondary magnet 14 (figure 2 The A surface shown in) has the same polarity as the upper surface of the...

Embodiment 3

[0050]Please refer toFigure 4 This embodiment provides an improved speaker plus auxiliary magnetic auxiliary device based on embodiment 1.

[0051]The device of this embodiment includes the auxiliary magnetic guide gauge 20 as disclosed in the first embodiment, and also includes a magnetic permeable ring 40 used in cooperation with the auxiliary magnetic guide gauge 20.

[0052]Such asFigure 4 As shown, in this embodiment, the positioning section of the secondary magnetic guide gauge 20 of the device is provided with a magnetic permeable ring 40 sleeved on the outer surface, and the permeable ring 40 is used to weaken the washer 13 and the U iron 11 The magnetic line of induction between the secondary magnet 14 and the main magnetic module forms a magnetic circuit in advance, so that the secondary magnet 14 and the washer 13 attract each other.

[0053]Optionally, the magnetic permeable ring 40 may be an iron ring.

[0054]In this embodiment, the magnetic permeable ring 40 sleeved on the outer ...

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Abstract

The invention discloses an auxiliary device and method for adding a secondary magnet to a loudspeaker. The device is used for assembling the secondary magnet into a main magnet module, and the main magnet module comprises U-shaped iron, a main magnet and a washer which are assembled; the device comprises a secondary magnetic guide gauge, the secondary magnetic guide gauge is of a hollow cylinder structure and comprises an upper guide portion, a middle positioning portion and a lower insertion portion, wherein the inner diameter of the guide portion is gradually decreased to be the same as thatof the positioning portion from top to bottom, the inner diameter of the positioning portion is matched with the outer diameter of the secondary magnet, and the outer diameter of the insertion portion is matched with the inner diameter of U iron. When the insertion part of the secondary magnetic guide gauge is inserted into the annular gap of the main magnetic module, relative positioning of thesecondary magnetic guide gauge and the main magnetic module is realized; and when the secondary magnet descends to the positioning part from the guide part of the secondary magnet guide gauge, relative positioning of the secondary magnet and the secondary magnet guide gauge is realized. According to the device, on the one hand, secondary magnetic jump can be avoided, and the assembly efficiency isimproved; on the other hand, the consistency and accuracy of the magnetic circuit can be improved.

Description

Technical field[0001]The invention relates to the technical field of speaker assembly, in particular to a speaker plus auxiliary magnetic auxiliary device and method.Background technique[0002]Such asfigure 1 A speaker (horn) is shown, and its magnetic circuit system includes a main magnet, a sub magnet, a washer and a U iron. Among them, the main magnet is arranged on the inner bottom surface of the U iron, the washer is arranged above the main magnet, and the secondary magnet is arranged above the washer. Between the main magnet and the U iron, between the main magnet and the washer, and between the washer and the auxiliary magnet, they are fixed by glue. Among them, the upper surface of the main magnet and the lower surface of the secondary magnet have the same polarity.[0003]During the assembly process of the speaker magnetic circuit system, due to the repulsion of the polarities between the main magnet and the auxiliary magnet, it is easy to cause the auxiliary magnet to jump an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R31/00H04R9/02
CPCH04R9/025H04R9/027H04R31/00
Inventor 曾喜海陈诚乐钟春生
Owner 东莞市融贤实业有限公司
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