CN211352447U - Testing arrangement of earphone noise suppression performance - Google Patents
Testing arrangement of earphone noise suppression performance Download PDFInfo
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- CN211352447U CN211352447U CN202020515961.7U CN202020515961U CN211352447U CN 211352447 U CN211352447 U CN 211352447U CN 202020515961 U CN202020515961 U CN 202020515961U CN 211352447 U CN211352447 U CN 211352447U
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Abstract
The utility model relates to a noise reduction earphone testing arrangement technical field especially relates to a testing arrangement of earphone noise suppression performance. A testing device for noise suppression performance of an earphone comprises a sound insulation box body, a sliding seat, a noise generation loudspeaker, a magnetic seat and a double-shaft power device for driving the magnetic seat to move along the X-axis direction and the Y-axis direction, wherein the sliding seat and the noise generation loudspeaker are uniformly distributed in the sound insulation box body; the bottom of sound insulation box is provided with lubricated bottom plate, and the slide slides and sets up in the upper surface of lubricated bottom plate, and the speaker is taken place in the noise and installs in the slide, and the lower surface of lubricated bottom plate is arranged in to the magnetic force seat, and the magnetic force seat passes through magnetic force actuation with the slide, and the magnetic force seat is connected with biax power device transmission. The utility model discloses a testing arrangement of earphone noise suppression performance, noise generation speaker can be at the noise source in the sound-proof box internal motion simulation motion, and the noise that biax power device during operation produced can not disturb test work, and the test accuracy is high.
Description
Technical Field
The utility model relates to a noise reduction earphone testing arrangement technical field especially relates to a testing arrangement of earphone noise suppression performance.
Background
The active noise reduction earphone can sense ambient noise and emit sound waves which can neutralize noise sound waves so as to suppress the noise. The noise suppression performance of the noise reduction earphone needs to be concluded through professional tests. In the prior art, the noise reduction earphone and the noise generation device are both statically arranged in the sound insulation box body when the noise suppression performance is tested, but much environmental noise received by the earphone in the actual use process has relative displacement, and particularly the noise reduction earphone used in special occasions, such as high-speed rails, is used. The conventional earphone noise suppression performance test device cannot simulate a noise source in motion, so that a test device for earphone noise suppression performance is needed to be provided, and the noise source in motion can be simulated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a testing arrangement of earphone noise suppression performance to prior art's not enough, but noise source in the simulation motion.
In order to achieve the above object, the utility model discloses a testing device for noise suppression performance of earphone, which comprises a sound insulation box body, a slide seat, a noise generation loudspeaker, a magnetic seat and a double-shaft power device for driving the magnetic seat to move along the X-axis and Y-axis directions, wherein the slide seat and the noise generation loudspeaker are uniformly arranged inside the sound insulation box body; the bottom of sound insulation box is provided with lubricated bottom plate, and the slide slides and sets up in the upper surface of lubricated bottom plate, and the speaker is taken place in the noise and installs in the slide, and the lower surface of lubricated bottom plate is arranged in to the magnetic force seat, and the magnetic force seat passes through magnetic force actuation with the slide, and the magnetic force seat is connected with biax power device transmission.
Further, the upper surface of the lubricating bottom plate is coated with lubricating grease.
Furthermore, two noise generation loudspeakers are arranged, and the two noise generation loudspeakers are arranged on the sliding seat in a mirror symmetry mode.
Furthermore, the double-shaft power device comprises an X-shaft sliding rail, an X-shaft sliding table, an X-shaft driving device, a Y-shaft sliding table and a Y-shaft driving device, wherein the X-shaft sliding table and the X-shaft sliding rail are arranged in a relatively sliding mode along the X shaft, the Y-shaft sliding table and the X-shaft sliding table are arranged in a relatively sliding mode along the Y shaft, and the X-shaft driving device drives the X-shaft sliding table to slide relative to the X-shaft sliding rail; the Y-axis sliding table of the Y-axis driving device slides relative to the X-axis sliding table, and the magnetic base is installed on the Y-axis sliding table.
Furthermore, the lubricating bottom plate is made of glass.
Furthermore, the lubricating bottom plate is made of a sound insulation material.
The utility model has the advantages that: the utility model discloses a testing arrangement of earphone noise suppression performance, noise source that the speaker can be in the sound insulation box internal motion simulation motion takes place for the noise, and biax power device arranges the sound insulation box in outside, and the noise that biax power device during operation produced can not disturb test work, and the test accuracy is high.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a schematic top view of the dual-shaft power plant of the present invention.
The reference numerals include:
1-sound insulation box body 11-lubricating bottom plate
2-slide 3-noise generating loudspeaker 4-magnetic base
5-double-shaft power device
51-X-axis slide rail 52-X-axis sliding table 53-X-axis driving device
54-Y-axis slide 55-Y-axis drive.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the testing device for noise suppression performance of an earphone of the present invention comprises a sound insulation box 1, and further comprises a sliding seat 2, a noise generation speaker 3, a magnetic seat 4, and a dual-axis power device 5 for driving the magnetic seat 4 to move along the X-axis and Y-axis directions, wherein the sliding seat 2 and the noise generation speaker 3 are uniformly disposed inside the sound insulation box 1; the bottom of sound insulation box 1 is provided with lubricated bottom plate 11, and slide 2 slides and sets up in the upper surface of lubricated bottom plate 11, and the speaker 3 is installed in slide 2 in the noise emergence, and magnetic base 4 arranges in the lower surface of lubricated bottom plate 11, and magnetic base 4 passes through the magnetic force actuation with slide 2, and magnetic base 4 is connected with 5 transmissions of biax power device. The utility model discloses a testing arrangement of earphone noise suppression performance, the noise that produces when slide 2 takes place relative displacement with lubricated bottom plate 11 is little and the frequency spectrum is invariable, the utility model discloses a testing arrangement of earphone noise suppression performance, noise generation speaker 3 can be at the noise source in the 1 internal motion simulation motion of sound-proof box, and biax power device 5 arranges sound-proof box 1 outside in, and the noise that 5 during operation of biax power device produced can not disturb test work, has improved the test accuracy.
The utility model discloses a testing arrangement of earphone noise suppression performance, lubricated bottom plate 11's upper surface is coated with lubricating grease, and the noise that produces when slide 2 and lubricated bottom plate 11's upper surface take place relative displacement is little and the frequency spectrum is invariable, and the test accuracy is high.
Specifically, two noise generation speakers 3 are provided, and the two noise generation speakers 3 are arranged on the sliding base 2 in mirror symmetry.
The utility model discloses a testing arrangement of earphone noise suppression performance, biax power device 5 includes X axle slide rail 51, X axle slip table 52, X axle drive arrangement 53, Y axle slip table 54, Y axle drive arrangement 55, and X axle slip table 52 sets up along X axle relative slip with X axle slide rail 51, and Y axle slip table 54 sets up along Y axle relative slip with X axle slip table 52, and X axle drive arrangement 53 drives X axle slip table 52 and slides for X axle slide rail 51; the Y-axis drive device 55 slides the Y-axis slide table 54 relative to the X-axis slide table 52, and the magnetic base 4 is mounted on the Y-axis slide table 54. The X-axis driving device 53 and the Y-axis driving device 55 include a motor, a transmission lead screw and a lead screw nut, the motor drives the transmission lead screw to rotate, and the transmission lead screw pushes the lead screw nut to drive the X-axis sliding table 52 or the Y-axis sliding table 54 to move.
Specifically, the lubricating base plate 11 is a glass lubricating base plate 11. The utility model discloses a testing arrangement of earphone noise suppression performance, the noise that produces when slide 2 and lubricated bottom plate 11's upper surface takes place relative displacement is little and the frequency spectrum is invariable, and the test accuracy is high.
Specifically, the lubricating base plate 11 is made of a sound insulation material. The utility model discloses a testing arrangement of earphone noise suppression performance, the noise that 5 during operation of biax power device produced can not disturb test work, has improved the test accuracy.
In conclusion, the present invention has the above-mentioned excellent characteristics, so that it can be used to enhance the effectiveness of the prior art and has practicability, and thus it is a product with practical value.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (6)
1. The utility model provides a testing arrangement of earphone noise suppression performance, includes sound insulation box, its characterized in that: the noise-proof box also comprises a sliding seat, a noise generating loudspeaker, a magnetic seat and a double-shaft power device for driving the magnetic seat to move along the X-axis direction and the Y-axis direction, wherein the sliding seat and the noise generating loudspeaker are uniformly distributed in the sound-proof box body; the bottom of sound insulation box is provided with lubricated bottom plate, and the slide slides and sets up in the upper surface of lubricated bottom plate, and the speaker is taken place in the noise and installs in the slide, and the lower surface of lubricated bottom plate is arranged in to the magnetic force seat, and the magnetic force seat passes through magnetic force actuation with the slide, and the magnetic force seat is connected with biax power device transmission.
2. The testing device for noise suppression performance of earphones according to claim 1, wherein: and lubricating grease is coated on the upper surface of the lubricating bottom plate.
3. The testing device for noise suppression performance of earphones according to claim 1, wherein: the two noise generation loudspeakers are arranged on the sliding seat in a mirror symmetry mode.
4. The testing device for noise suppression performance of earphones according to claim 1, wherein: the double-shaft power device comprises an X-shaft sliding rail, an X-shaft sliding table, an X-shaft driving device, a Y-shaft sliding table and a Y-shaft driving device, wherein the X-shaft sliding table and the X-shaft sliding rail are arranged in a relatively sliding mode along the X shaft, the Y-shaft sliding table and the X-shaft sliding table are arranged in a relatively sliding mode along the Y shaft, and the X-shaft driving device drives the X-shaft sliding table to slide relative to the X-shaft sliding rail; the Y-axis sliding table of the Y-axis driving device slides relative to the X-axis sliding table, and the magnetic base is installed on the Y-axis sliding table.
5. The testing device for noise suppression performance of earphones according to claim 1, wherein: the lubricating bottom plate is made of glass.
6. The testing device for noise suppression performance of earphones according to claim 1, wherein: the lubricating bottom plate is made of sound insulation materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020515961.7U CN211352447U (en) | 2020-04-10 | 2020-04-10 | Testing arrangement of earphone noise suppression performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020515961.7U CN211352447U (en) | 2020-04-10 | 2020-04-10 | Testing arrangement of earphone noise suppression performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211352447U true CN211352447U (en) | 2020-08-25 |
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ID=72099932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020515961.7U Active CN211352447U (en) | 2020-04-10 | 2020-04-10 | Testing arrangement of earphone noise suppression performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211352447U (en) |
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2020
- 2020-04-10 CN CN202020515961.7U patent/CN211352447U/en active Active
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