Loudspeaker test device

A testing device and speaker technology, applied in electrical components and other directions, can solve the problems of inability to accurately express the acoustic parameters of the speaker module, high cost, low testing efficiency, etc., to reduce costs, improve efficiency, and ensure accuracy and consistency. Effect

Inactive Publication Date: 2016-07-20
GOERTEK INC
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Problems solved by technology

At present, the volume of the cabinet used in the test is fixed, and the test of different volumes needs to be replaced with different cabinets, which makes the test efficiency low and the cost high; and the difference between speaker batches cannot be avoided, which affects the test accuracy.
[0003] In modern electronic products, the speaker is usually installed in the external terminal shell in the form of a speaker module, but the traditional speaker test is to place the speaker unit in a closed test environment, because the environment of the speaker unit and the speaker module itself is different , therefore, the results obtained by this test method cannot accurately express the acoustic parameters of the speaker module

Method used

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  • Loudspeaker test device

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Embodiment Construction

[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0021] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0022] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0023] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses a loudspeaker test device comprising a cavity of which one end is open and a piston which is slidably matched in the cavity. One side, which is opposite to the piston, in the cavity is provided with a positioning base which is used for fixing and sealing a single loudspeaker. The position, which is corresponding to the positioning base, of the cavity is also provided with sound holes which are matched with the single loudspeaker. The cavity is also provided with a damping structure through which the outside and the internal part of the cavity are communicated. According to the test device, the objective of adjusting volume can be achieved by moving the position of the piston in the cavity so that the acoustic performance of the single loudspeaker under different volumes can be tested, and test accuracy and consistency can be guaranteed. According to the test device, the structure of the loudspeaker module group is formed by the piston, the cavity, the sound holes and the damping structure so that the final detection result is enabled to further represent the acoustic performance of the single loudspeaker existing in the form of the module group.

Description

technical field [0001] The present invention relates to a test fixture, and more particularly, the present invention relates to a test device for testing the acoustic performance of a loudspeaker. Background technique [0002] In the field of electronic technology, speaker acoustic performance testing is an important process. The usual practice is to place the loudspeaker unit in a closed cavity for a series of sound tests. With the development of science and technology, people have higher and higher requirements for the acoustic performance of speakers. Therefore, in order to meet the brand-new needs of consumers for speakers, it is necessary to test the corresponding acoustic performance of the speakers in closed environments with different volumes. At present, the volume of the cabinet used in the test is fixed, and different volume tests need to be replaced with different cabinets, which makes the test efficiency low and the cost high; and the difference between speake...

Claims

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Application Information

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IPC IPC(8): H04R29/00
CPCH04R29/001H04R2420/05
Inventor 刘岩涛杨玉莹
Owner GOERTEK INC
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