Loudspeaker

A loudspeaker and anchoring technology, which is applied in the field of loudspeakers, can solve problems such as uneven stress on the vibration system of the loudspeaker, and achieve the effects of high-power performance, wide application range, and suppression of swing vibration

Active Publication Date: 2018-02-09
SHANDONG GETTOP ACOUSTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Depend on figure 1 It can be seen that the stress concentration positions of the four elastic arms of this scheme are not axially symmetrical, so this scheme cannot fundamentally solve the problem of uneven force on the speaker vibration system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Example 1 A speaker

[0068] Such as Figure 2-4 As shown, the present invention provides a speaker

[0069] The present invention provides a loudspeaker, which comprises an elastic diaphragm 2, a dome 3, an elastic plate 4, a voice coil 5, a basin frame 6, an axially symmetrical annular pole piece 7, a central pole piece 8, and a magnetic steel 9 and magnetic cover 1.

[0070] The material of the elastic plate 4 is a flexible material;

[0071] The voice coil 5 includes a first lead terminal 51a and a second lead terminal 51b;

[0072] The first lead terminal 51a and the second lead terminal 51b of the voice coil 5 are respectively welded to the two first pad terminals 41a and the second pad terminal 41b of the elastic plate 4. At the same time, the voice coil 5, the elastic plate 4, The dome 3 and the elastic diaphragm 2 are bonded together to form a vibration system. The vibration system avoids the relative movement between the two first lead terminals 51a and the second le...

Embodiment 2

[0090] Example 2 A speaker

[0091] Such as Figure 5 As shown, the present invention also provides another speaker. The difference from Embodiment 1 is that the two ends and the middle of the anchoring elastic body 43 have the same width. The elastic board 4 has a two-layer or three-layer structure. The two-layer structure is the substrate and the conductive layer; the three-layer structure is the substrate, the conductive layer and the protective layer. Among them, the base material is preferably polyimide, and the conductive layer is preferably rolled copper. The conductive layer 45 is made of rolled copper with a thickness of 5 μ-20 μ, which is stronger than a deposited conductive layer of the same thickness. This scheme has simple structure, easy process realization, and uniform force on each position of the anchoring elastic body.

Embodiment 3

[0092] Example 3 A speaker

[0093] Such as Image 6 As shown, the present invention also provides another speaker. The difference from the above-mentioned embodiment is that the width of the two ends of the anchoring elastic body 43 is larger than the middle width. The elastic board 4 has a two-layer or three-layer structure. The two-layer structure is the substrate and the conductive layer; the three-layer structure is the substrate, the conductive layer and the protective layer. Among them, the base material is preferably polyimide, and the conductive layer is preferably rolled copper. The conductive layer 45 is made of rolled copper with a thickness of 5 μ-20 μ, which is stronger than a deposited conductive layer of the same thickness. This design can reduce the stress on the middle part of the anchored elastic body during vibration and deformation, and make the middle position of the anchored elastic body deform more, which is beneficial to the structural design and perfor...

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PUM

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Abstract

The invention discloses a loudspeaker. The loudspeaker includes a vibration system which includes a spring plate. According to the invention, the loudspeaker increases linear range by The loudspeakerhas higher structural rigidity, and a flexible material does not have deformation after a long time work. The loudspeaker can reduce distortion more than 30 percent. The vibration system can evenly bear force, does not cause rocking vibration, and can reduce the possibility of rocking vibration from 90 percent to 10 percent. A flexible structure replaces a lead wire, mechanical strength is betterthan a voice coil, so that the loudspeaker does not generate fatigue broken wires that are easily caused by pulling and at high frequency, and the loudspeaker is optimal than the voice coil suspendingplan or immerse metal level plan in mainstream plans. A magnetic circuit system has a symmetrical design, such that the all positions of the voice coil can evenly bear force, and suppress the generation of rocking vibration. The flexible structure can cooperate with all kinds of mainstream film materials in order to form a loudspeaker, is free from the material and thickness of the film, and hasa wide range of applications. The mechanical strength of a conducting layer is greater than a deposition conducting layer or an electrolytic conducting layer.

Description

Technical field [0001] The invention relates to a loudspeaker and belongs to the technical field of electronic equipment. Background technique [0002] With the rapid development of electronic industries such as wireless communications, as the main terminal of wireless communications, smart phones have made significant progress in terms of function, appearance, and reliability. At the same time, the rapid development of smart phones has also led to the continuous update and progress of the mobile phone electroacoustic industry. People put forward new requirements for electroacoustic devices used in mobile phones: small size, high power, high loudness, large amplitude, and low distortion. [0003] The existing technical solution: the conduction of the voice coil of the traditional speaker relies on two wires drawn from the voice coil body. In the design of a conventional speaker, the middle part of the two wires is suspended in the speaker, or fixed on the surface of the diaphragm ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/02H04R9/025H04R9/06H04R2400/11
Inventor 侯杰李奎宝
Owner SHANDONG GETTOP ACOUSTIC
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