CN107635184A - A kind of test device of multifunction speaker - Google Patents
A kind of test device of multifunction speaker Download PDFInfo
- Publication number
- CN107635184A CN107635184A CN201710660280.2A CN201710660280A CN107635184A CN 107635184 A CN107635184 A CN 107635184A CN 201710660280 A CN201710660280 A CN 201710660280A CN 107635184 A CN107635184 A CN 107635184A
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- CN
- China
- Prior art keywords
- cavity
- loudspeaker
- test device
- multifunction speaker
- speaker according
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Abstract
The present invention relates to a kind of test device of multifunction speaker, and it includes the cavity of one end open and the piston being slidably fitted in cavity；The side relative with piston is provided with the positioning seat for fixing and sealing loudspeaker monomer in the cavity, and position corresponding with positioning seat is additionally provided with the acoustic aperture for coordinating with loudspeaker monomer on the cavity；The extraneous damping structure with inside cavity of connection, signal generation equipment are additionally provided with the cavity, the signal generation equipment is configured to generate at least one test signal；Multiple amplifiers, the multiple amplifier is connected to the signal generation equipment, and each amplifier includes the terminal for connecting a loudspeaker in the multiple loudspeaker and is configured at least one test signal that amplification is used to drive associated loudspeaker.
Description
Technical field
The present invention relates to a kind of test fixture, and more specifically the present invention relates to a kind of test device of multifunction speaker.
Background technology
In electronic technology field, the test of loudspeaker acoustical behavior is an important process.Common practice is to raise one's voice
Device monomer, which is placed in a closed cavity volume, carries out a series of sound test.With the development of science and technology, people are to loudspeaker
Acoustic performance requirements also more and more higher.Therefore, in order to meet consumer to the brand-new demand of loudspeaker, it is necessary to which loudspeaker is put
Its corresponding acoustical behavior is tested in the closed environment of not co-content.Test at present uses what the volume of casing was fixed,
The test of different volumes needs to change different casings, and this make it that testing efficiency is relatively low, cost is higher；And due to that can not avoid
Difference between loudspeaker batch, so as to influence test accuracy rate.
In modern electronic product, loudspeaker is generally in the form of loudspeaker module in terminal shell mounted externally, still
Conventional loudspeakers test is that loudspeaker monomer is placed in a closed test environment, due to loudspeaker monomer and loudspeaker mould
The group environment of itself is different, and therefore, the result obtained by this method of testing can not accurately express the acoustics of loudspeaker module
Parameter.
The content of the invention
It is an object of the invention to provide a kind of test device of multifunction speaker.
To solve above-mentioned technical problem, structure of the invention includes the cavity of one end open and is slidably fitted in cavity
Interior piston；The side relative with piston is provided with the positioning seat for fixing and sealing loudspeaker monomer in the cavity,
Position corresponding with positioning seat is additionally provided with the acoustic aperture for coordinating with loudspeaker monomer on the cavity；On the cavity also
The extraneous damping structure with inside cavity of connection, signal generation equipment are provided with, the signal generation equipment is configured to generate
At least one test signal；Multiple amplifiers, the multiple amplifier are connected to the signal generation equipment, each amplifier
All include the terminal for connecting a loudspeaker in the multiple loudspeaker and be configured to amplification for driving correlation
At least one test signal of loudspeaker；Multiple measuring apparatus, the multiple measuring apparatus are configured to be connected to institute
The each speaker measurement for stating multiple amplifiers flows through the electric current of associated loudspeaker or is applied in the voltage of associated loudspeaker
It is at least one；The assessment equipment is configured to by assessing the measured electric current for flowing through the associated loudspeaker or institute
Measurement be applied in the voltage of the associated loudspeaker at least one be connected to the described of the multiple amplifier to assess
Multiple loudspeakers.
Further：The damping structure includes the through hole being arranged on cavity wall, includes the resistance of the covering through hole
Buddhist nun pads or damping screen.
Further：The damping structure is the microcellular structure being arranged on cavity wall.
Further：The aperture of the microcellular structure is 30-50 microns.
Further：The stop part as piston movement lower dead center is provided with the inwall of the cavity.
Further：The aperture of the microcellular structure is 30-50 microns.
Further：The stop part as piston movement lower dead center is provided with the inwall of the cavity.
Further：The stop part is the circle lug boss for being arranged on cavity inner wall.
The beneficial effects of the present invention are：Because device includes multiple amplifiers, therefore the device can have on institute
The improved flexibility of at least one test signal is stated, and can be allowed at least one test signal during test
Modify.Change in addition, the automatic intermediate performance inspection for the loudspeaker to be tested goes for detection.Test setting
Simplification is possible.Transmission from such as direct current (dc) to 75kHz frequency range is possible.The test of ultrasonic transducer
It is possible.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the present invention.
Embodiment
A kind of test device of multifunction speaker as shown in Figure 1, including the cavity that is open of one end 3 and be slidably matched
Piston 1 in cavity 2；The side relative with piston is provided with for fixing and sealing loudspeaker monomer in the cavity
Positioning seat, position corresponding with positioning seat is additionally provided with the acoustic aperture for coordinating with loudspeaker monomer on the cavity；Described
Be additionally provided with the extraneous damping structure with inside cavity of connection on cavity, signal generation equipment 5, the signal generation equipment by with
It is set at least one test signal 4 of generation；Multiple amplifiers, the multiple amplifier are connected to the signal generation equipment,
Each amplifier includes the terminal for connecting a loudspeaker in the multiple loudspeaker and is configured to amplification use
In at least one test signal 6 of driving associated loudspeaker；Multiple measuring apparatus 7, the multiple measuring apparatus are configured
Flow through the electric current of associated loudspeaker as each speaker measurement for being connected to the multiple amplifier 8 or be applied to correlation and raise
It is at least one in the voltage of sound device；The assessment equipment 9 is configured to raise one's voice by assessing the measured correlation that flows through
The electric current of device or it is measured be applied in the voltage of the associated loudspeaker it is at least one come assess be connected to it is described more
The multiple loudspeaker of individual amplifier.
Above-mentioned damping structure includes the through hole being arranged on cavity wall, in addition to the damping mat of the covering through hole or resistance
Buddhist nun's net.
Above-mentioned damping structure is the microcellular structure being arranged on cavity wall.
The aperture of above-mentioned microcellular structure is 30-50 microns.
The stop part as piston movement lower dead center is provided with the inwall of above-mentioned cavity.
The aperture of above-mentioned microcellular structure is 30-50 microns.
The stop part as piston movement lower dead center is provided with the inwall of the upper cavity.
Above-mentioned stop part is the circle lug boss for being arranged on cavity inner wall.
Claims (8)
- A kind of 1. test device of multifunction speaker, it is characterised in that：Cavity including one end open and it is slidably fitted in Piston in cavity；The side relative with piston is provided with the positioning for fixing and sealing loudspeaker monomer in the cavity , position corresponding with positioning seat is additionally provided with the acoustic aperture for coordinating with loudspeaker monomer on the cavity；In the cavity On be additionally provided with the extraneous damping structure with inside cavity of connection, signal generation equipment, the signal generation equipment is configured to Generate at least one test signal；Multiple amplifiers, the multiple amplifier are connected to the signal generation equipment, Mei Gefang Big device all includes the terminal for connecting a loudspeaker in the multiple loudspeaker and is configured to amplification for driving At least one test signal of associated loudspeaker；Multiple measuring apparatus, the multiple measuring apparatus are configured to connect Each speaker measurement to the multiple amplifier flows through the electric current of associated loudspeaker or is applied to the electricity of associated loudspeaker It is at least one in pressure；The assessment equipment be configured to by assess the measured electric current for flowing through the associated loudspeaker or Measured by person be applied in the voltage of the associated loudspeaker at least one be connected to the multiple amplifier to assess The multiple loudspeaker.
- A kind of 2. test device of multifunction speaker according to claim 1, it is characterised in that：The damping structure bag The through hole being arranged on cavity wall is included, includes the damping mat or damping screen of the covering through hole.
- A kind of 3. test device of multifunction speaker according to claim 1, it is characterised in that：The damping structure is The microcellular structure being arranged on cavity wall.
- A kind of 4. test device of multifunction speaker according to claim 1, it is characterised in that：The microcellular structure Aperture is 30-50 microns.
- A kind of 5. test device of multifunction speaker according to claim 1, it is characterised in that：In the cavity The stop part as piston movement lower dead center is provided with wall.
- A kind of 6. test device of multifunction speaker according to claim 3, it is characterised in that：The microcellular structure Aperture is 30-50 microns.
- A kind of 7. test device of multifunction speaker according to claim 1, it is characterised in that：In the cavity The stop part as piston movement lower dead center is provided with wall.
- A kind of 8. test device of multifunction speaker according to claim 1, it is characterised in that：The stop part is to set Put and enclose lug boss the one of cavity inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710660280.2A CN107635184A (en) | 2017-08-04 | 2017-08-04 | A kind of test device of multifunction speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710660280.2A CN107635184A (en) | 2017-08-04 | 2017-08-04 | A kind of test device of multifunction speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107635184A true CN107635184A (en) | 2018-01-26 |
Family
ID=61099417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710660280.2A Pending CN107635184A (en) | 2017-08-04 | 2017-08-04 | A kind of test device of multifunction speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107635184A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110099349A (en) * | 2019-04-01 | 2019-08-06 | 广州市建桥音响配件有限公司 | A kind of multifunctional testing platform of loudspeaker |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2375779A2 (en) * | 2010-03-31 | 2011-10-12 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | Apparatus and method for measuring a plurality of loudspeakers and microphone array |
| CN105792088A (en) * | 2016-05-05 | 2016-07-20 | 歌尔声学股份有限公司 | Loudspeaker test device |
| CN205754856U (en) * | 2016-05-06 | 2016-11-30 | 奥音科技（北京）有限公司 | For testing the device of multiple speaker |
-
2017
- 2017-08-04 CN CN201710660280.2A patent/CN107635184A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2375779A2 (en) * | 2010-03-31 | 2011-10-12 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | Apparatus and method for measuring a plurality of loudspeakers and microphone array |
| CN105792088A (en) * | 2016-05-05 | 2016-07-20 | 歌尔声学股份有限公司 | Loudspeaker test device |
| CN205754856U (en) * | 2016-05-06 | 2016-11-30 | 奥音科技（北京）有限公司 | For testing the device of multiple speaker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110099349A (en) * | 2019-04-01 | 2019-08-06 | 广州市建桥音响配件有限公司 | A kind of multifunctional testing platform of loudspeaker |
| CN110099349B (en) * | 2019-04-01 | 2021-11-09 | 广州市建桥音响配件有限公司 | Multifunctional testing platform for loudspeaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180126 |
|
| RJ01 | Rejection of invention patent application after publication |