Hybrid movable coil plate and flat plate-type speaker using same

A moving coil and speaker technology, applied in the direction of sensors, circuit lead arrangement/elimination, magnetic objects, etc., can solve problems such as poor control impedance efficiency, proportional increase in impedance, and decrease in mass production efficiency.

Active Publication Date: 2020-10-30
金东万 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The coiled copper wire movable coil starts from the outer contour of the coil track and ends on the inside of the coil track, so it is very difficult to electrically connect the + and - leads. In the case of winding with a single copper wire, in order to increase the "L" value However, it is necessary to increase the number of turns (Turn number) of the track. In this case, there is a problem that the impedance increases proportionally with the increase of the number of turns. In order to increase the number of turns while maintaining the impedance, thick copper wire winding is required. At this time There is a contradiction in the inversely proportional correlation relationship between the increase in the number of turns and the increase in the overall thickness and weight of the movable coil
[0008] In addition, in the case of a pattern-printed PCB movable coil, the two layers of the coil track type with a two-layer structure can only be connected in series. In the case of only series connection, the impe

Method used

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  • Hybrid movable coil plate and flat plate-type speaker using same
  • Hybrid movable coil plate and flat plate-type speaker using same
  • Hybrid movable coil plate and flat plate-type speaker using same

Examples

Experimental program
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Effect test

no. 1 example

[0055] figure 1 is a schematic perspective view of a flat-panel speaker including a hybrid movable coil plate according to a first embodiment of the present invention, figure 2 To show a schematic perspective view from another angle of the flat panel speaker including the hybrid movable coil plate of the first embodiment of the present invention, image 3 It is an exploded perspective view of a copper wire coil of a flat panel speaker including a hybrid movable coil plate according to a first embodiment of the present invention, Figure 4 It is a cross-sectional view of a flat-panel speaker including a hybrid movable coil plate according to a first embodiment of the present invention.

[0056] exist image 3 In order to facilitate the description and help understand the arrangement relationship, only the copper wire coil 16 is disassembled and arranged on the side of the movable coil plate 10 , and the copper wire coil 16 is pasted on the side of the movable coil plate 10 f...

no. 2 example

[0075] Figure 5 is a schematic perspective view of a flat-panel speaker including a hybrid movable coil plate according to a second embodiment of the present invention, Figure 6 is an exploded perspective view of a copper wire coil of a flat-panel speaker including a hybrid movable coil plate according to a second embodiment of the present invention, Figure 7 It is a cross-sectional view of a flat-panel speaker including a hybrid movable coil plate according to a second embodiment of the present invention.

[0076] exist Figure 6 In order to facilitate the description and help understand the arrangement relationship, only the copper wire coil 26 is disassembled and arranged on the side of the first movable coil plate 20a, and the copper wire coil 26 is pasted on the side of the first movable coil plate 20a for use.

[0077] Comparing the second embodiment of the present invention with the first embodiment, it can be known that the same configuration principle is used to ...

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PUM

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Abstract

The present invention relates to a hybrid movable coil plate and a flat plate-type speaker, and more specifically, to a hybrid movable coil plate and a flat plate-type speaker, the hybrid movable coilplate having a coil pattern-printed on one lateral surface of the movable coil plate, and a wound copper wire coil attached to the other lateral surface so as to increase an induced electromotive force, and thus improve the sound pressure of a speaker. The hybrid movable coil plate for the flat plate-type speaker, according to the present invention, has a spiraled copper wire coil attached to onesurface thereof and a PCB coil pattern-printed to the other surface thereof, wherein the copper wire coil and the PCB coil are formed into a track shape, and a pair of lead wire connection terminalsare formed, and one or more via holes for electrically connecting the copper wire coil and the PCB coil, and at least one among the one or more via holes has a copper plate formed at the surrounding thereof.

Description

technical field [0001] The present invention relates to a hybrid movable coil plate and flat-panel loudspeaker, and more specifically relates to increasing the induced electromotive force by pattern-printing a coil on one side of the movable coil plate and attaching and winding a copper wire coil on the other side, thereby A hybrid movable coil plate and flat-panel speaker that improves the sound pressure of the speaker. Background technique [0002] The movable coil plate used in the flat-panel speaker is wound on one or both sides of the plate-shaped coil base in an elliptical shape or printed and patterned. [0003] When a current flows in the movable coil of the movable coil plate, the current flowing at this time generates a magnetic field that expands and then contracts at the same frequency as the audio signal around the movable coil, because the movable coil is generated by the magnet inside the speaker unit Therefore, corresponding to this magnetic field, the movab...

Claims

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Application Information

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IPC IPC(8): H04R9/04H04R9/02H04R1/06
CPCH04R9/06H04R2209/041H04R9/047H04R9/025H04R1/06H01F7/02H01F7/081H04R9/046H05K1/115H05K1/165
Inventor 金东万
Owner 金东万
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