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Diaphragm assembly for loudspeaker and loudspeaker provided with same

A technology of a diaphragm assembly and a loudspeaker is applied in the field of loudspeakers to achieve the effects of improving rigidity, reducing the generation of noise, and suppressing stray vibrations

Pending Publication Date: 2018-12-28
张永春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, because the diaphragm of the ordinary double-layer foundation structure is not tightly braced or is very thin, it will produce an additional "squeak" sound similar to a thin sheet of paper when it vibrates, which is a defect of this type of diaphragm

Method used

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  • Diaphragm assembly for loudspeaker and loudspeaker provided with same
  • Diaphragm assembly for loudspeaker and loudspeaker provided with same
  • Diaphragm assembly for loudspeaker and loudspeaker provided with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention. figure 2 for figure 1 The schematic diagram of the three-dimensional explosion structure of the embodiment. image 3 for figure 1 A schematic diagram of the overall structure of the middle flexible circuit board 10 . Such as figure 1 , figure 2 and image 3 As shown, the diaphragm assembly in this embodiment includes a flexible circuit board 10 , a tuning layer 20 and a PCB supporting backplane 30 . Wherein, the PCB supporting backplane 30 is arranged on the back of the flexible circuit board for attaching and assembling the diaphragm assembly to the surface of the mounting seat including the magnetic circuit and the magnetic conductive plate, and the tuning layer 20 is attached to the flexible circuit board 10 s surface.

[0050] In this embodiment, the PCB supporting backplane 30 includes support portions 31 provided at the edges of both sides of the flexib...

Embodiment 2

[0060] Such as Figure 4 As shown, the structure of the diaphragm assembly in this embodiment is suitable for tweeters. Wherein, the flexible circuit board 10 includes a group of conductive loops, and the tuning layer 20 adopts the structural form of spraying ink 22 . Wherein, the structural shape of the sprayed ink 22 can adopt various forms, such as square or ellipse, solid or hollow, and its coverage area on the flexible circuit board 10 can meet the timbre of the tuning tweeter and suppress stray vibration. Setting the spray ink 22 on the surface of the flexible circuit board 10 can effectively suppress the stray vibration of the flexible circuit board 10, reduce noise, and reduce the generation of "beep" sounds; in addition, by spraying the specific shape and area of ​​the ink 722, you can Tunes the subjective timbre of the tweeter.

[0061] The tuning layer 20 in this embodiment is suitable for tweeters by spraying ink 22 , wherein the metal layer 12 includes a set of ...

Embodiment 3

[0063] Such as Figure 5 As shown, the structure of the diaphragm assembly in this embodiment is suitable for a loudspeaker integrating high and midrange. Wherein, two sets of conductive loops are provided on the flexible circuit board 10 , one set of conductive loops corresponds to the high-pitched part, and the other set of conductive loops corresponds to the middle-pitched part. The tuning layer 20 on the conductive circuit of the treble part adopts the structural form of spraying ink 22 , and the tuning layer 20 on the conductive circuit of the midrange part adopts the structural form of a rectangular plate 21 .

[0064] The tuning layer 20 in this embodiment adopts the combination of the sprayed ink 22 and the rectangular plate 21, which can be applied to a loudspeaker integrating high and mid-range, and the flexible circuit board 10 is provided with two sets of conductive circuits. When the treble part and / or the midrange part on the flexible circuit board 10 are corres...

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Abstract

The invention belongs to the technical field of electroacoustic products, in particular to a diaphragm module for a loudspeaker and a loudspeaker provided with the diaphragm module. A diaphragm assembly for a loudspeaker according to the present invention,the invention comprises a PCB supporting backboard, a flexible circuit board and a tuning layer, wherein the PCB supporting backboard is arranged on the back surface of the flexible circuit board for bonding and assembling a diaphragm assembly to the surface of a mounting seat including a magnetic circuit and a magnetic conductive plate, andthe tuning layer is bonded to the surface of the flexible circuit board. By using the diaphragm assembly for a loudspeaker and the loudspeaker according to the present invention, a tuning lay is bonded to the flexible circuit board, when used for the tweeter or the tweeter portion of the loudspeaker, the spurious vibration of the flexible circuit board can be effectively suppressed and the generation of the noise can be reduced, and when used for the tweeter or the tweeter portion of the loudspeaker, the rigidity of the flexible circuit board can be effectively improved and brought close to the piston motion mode.

Description

technical field [0001] The invention belongs to the technical field of electroacoustic products, and in particular relates to a vibrating film assembly for a loudspeaker and a loudspeaker provided with the vibrating film assembly. Background technique [0002] The loudspeaker is an important acoustic component in electronic equipment, which is used to convert audio electrical signals into sound signals and is an energy conversion device. Loudspeakers usually include a vibration system and a magnetic circuit system, and the vibration system includes a diaphragm and a voice coil combined. The diaphragm is an important part of the speaker and plays a vital role in the performance of the speaker. It determines the conversion quality of the speaker from electrical energy to sound energy. [0003] The basic structure of the diaphragm is a double-layer structure film that is closely attached to the metal layer (aluminum foil or copper foil) and the polyimide film layer. The excess...

Claims

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Application Information

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IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/02H04R9/06H04R2400/11
Inventor 张永春
Owner 张永春
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