CN216747923U - Fan noise test equipment - Google Patents
Fan noise test equipment Download PDFInfo
- Publication number
- CN216747923U CN216747923U CN202123145813.4U CN202123145813U CN216747923U CN 216747923 U CN216747923 U CN 216747923U CN 202123145813 U CN202123145813 U CN 202123145813U CN 216747923 U CN216747923 U CN 216747923U
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- fan
- sound insulation
- insulation box
- microphone
- carrier plate
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Abstract
The utility model discloses a fan noise test equipment relates to the test equipment field. The fan noise testing equipment comprises a sound insulation box body, wherein a sound insulation box junction box is arranged outside the sound insulation box body, and sound insulation cotton, acoustic equipment and a testing clamp are arranged inside the sound insulation box body; the utility model discloses a, including the sound insulation box, the test fixture, the control panel, acoustic equipment, the syllable-dividing effect of sound insulation box will reach 25db when 200Hz, will reach 35db more than 500Hz, will reach 45db more than 1KHz, the test fixture includes fixed fan module, switching module is connected to the fan, fixed fan module is including moving the knot arm, it fixes to test the fan to move the knot arm, the fan is connected switching module and is included fan support plate and first magnet, pull out the bottom plate after laying flat the fan support plate, again with testing the fan and loading on the fan support plate, move simultaneously and detain the arm and compress tightly the border of testing the fan, push the fan support plate again and overturn, microphone through the spacing frame one side of support plate tests.
Description
Technical Field
The utility model relates to a test equipment technical field specifically is fan noise test equipment.
Background
In order to improve the reliability of electronic products, the fan product of the notebook computer needs to be tested for rotating speed, current and noise so as to judge the quality of the product.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model discloses a fan noise test equipment to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: fan noise test apparatus comprising:
the sound insulation box comprises a sound insulation box body, wherein a sound insulation box junction box is arranged outside the sound insulation box body, and sound insulation cotton, acoustic equipment and a test fixture are arranged inside the sound insulation box body;
the acoustic equipment comprises a microphone bracket and a microphone, and the outer wall of the microphone is sleeved at one end of the microphone bracket;
the test fixture comprises a movable buckling arm, a test fan is arranged on the inner wall of the movable buckling arm, a fan carrier plate is arranged on one side of the movable buckling arm, a correction structure is arranged on the back of the fan carrier plate, and first magnets are arranged on the two sides of the front side of the fan carrier plate and on the two sides of the movable buckling arm.
Preferably, one side of the fan carrier plate is provided with a carrier plate limiting frame, the bottom of the carrier plate limiting frame is fixedly connected with a bottom plate, and a handle is installed on one side of the bottom plate.
Preferably, the bottom of the bottom plate is connected with a rail in a sliding mode, and a bearing plate is arranged at the bottom of the rail and located at the top of the soundproof cotton.
Preferably, the correction structure comprises a correction plate and a correction tube, and the inner wall of the correction tube is slidably connected with the outer wall of the microphone.
Preferably, the bottom of the sound insulation box body and the bottom of the sound insulation cotton are provided with the underframe.
Preferably, a second magnet is disposed on one side of the correcting structure.
The utility model discloses a fan noise test equipment, its beneficial effect who possesses as follows:
1. the utility model discloses a, including the sound insulation box, the test fixture, the control panel, acoustic equipment, the syllable-dividing effect of sound insulation box will reach 25db when 200Hz, will reach 35db more than 500Hz, will reach 45db more than 1KHz, the test fixture includes fixed fan module, switching module is connected to the fan, fixed fan module is including moving the knot arm, it fixes to test the fan to move the knot arm, the fan is connected switching module and is included fan support plate and first magnet, pull out the bottom plate after laying flat the fan support plate, again with testing the fan and loading on the fan support plate, move simultaneously and detain the arm and compress tightly the border of testing the fan, push the fan support plate again and overturn, inhale on the spacing frame of support plate through first magnet, test through the microphone of the spacing frame one side of support plate.
2. The utility model discloses a, the control panel function is including providing PWM waveform drive fan speed, and the rotational speed of square wave frequency calculation fan is produced when testing the fan and rotates, and the electric current of test fan compares with prior art, and this scheme structure is ingenious, convenient operation, and fan speed can real time control, through the noise that the microphone test needs the rotational speed, guarantees fan function uniformity, and the noise is in the certain limit.
Drawings
FIG. 1 is a schematic view of the overall external structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a front view of the sound-proof cotton, the calibration structure and the test fixture;
FIG. 4 is a rear view of the sound-proof cotton, the calibration structure and the test fixture of the present invention;
FIG. 5 is a front view of the first magnet, the fan support plate and the movable buckle arm of the present invention;
FIG. 6 is a rear view of the first magnet, the fan support plate and the movable buckle arm of the present invention;
fig. 7 is a schematic view of the structure carrier plate limiting frame, the microphone bracket, the handle and the slideway of the present invention;
fig. 8 is a schematic view of the structure correcting structure and the second magnet of the present invention.
In the figure: 1. a sound insulation box body; 2. a junction box of the sound insulation box; 3. sound insulation cotton; 4. a carrier plate; 5. a track; 6. a base plate; 7. a support plate limiting frame; 8. a microphone stand; 9. a handle; 10. a chassis; 11. a fan carrier plate; 12. a correction structure; 13. a first magnet; 14. testing the fan; 15. a movable buckle arm; 16. a microphone; 17. a second magnet.
Detailed Description
The embodiment of the utility model discloses fan noise test equipment, as shown in fig. 1-8, include:
the sound insulation box comprises a sound insulation box body 1, wherein a sound insulation box junction box 2 is arranged outside the sound insulation box body 1, and sound insulation cotton 3, acoustic equipment and a test fixture are arranged inside the sound insulation box body 1;
its soundproof effect of sound insulation box 1 will reach 25db when 200Hz, will reach 35db more than 500Hz, will reach 45db more than 1KHz, 2 inside control panels that are provided with of sound insulation box terminal box, the control panel function is including providing PWM waveform drive fan rotational speed, the rotational speed of square wave frequency calculation fan is produced to test fan 14 when rotating, test fan 14's electric current soundproof cotton 3 absorbs the noise of sound insulation box 1 inside, all be provided with soundproof cotton 3 at sound insulation box 1's inner wall and chamber door etc., increase sound insulation of sound insulation box 1.
The acoustic device comprises a microphone bracket 8 and a microphone 16, and the outer wall of the microphone 16 is sleeved at one end of the microphone bracket 8;
wherein the microphone bracket 8 is arranged on the top of the bearing plate 4, a measuring ruler is arranged on the outer wall of the microphone bracket 8 and one side of the microphone 16, the distance of the microphone 16 can be adjusted, and the acoustic device further comprises a Bojie sound card, a power amplifier MT-1000, a microphone power supply B & K1704, a microphone B & K4958 and a loudspeaker W4-2142
The testing fixture comprises a movable buckling arm 15, a testing fan 14 is arranged on the inner wall of the movable buckling arm 15, a fan carrier plate 11 is arranged on one side of the movable buckling arm 15, a correcting structure 12 is arranged on the back surface of the fan carrier plate 11, and first magnets 13 are arranged on two sides of the front surface of the fan carrier plate 11 and two sides of the movable buckling arm 15;
the testing fixture comprises a fixed fan module and a fan connecting and switching module, the fixed fan module comprises a movable buckling arm 15, the movable buckling arm 15 is used for fixing a testing fan 14, the fan connecting and switching module comprises a fan carrier plate 11 and a first magnet 13, the bottom plate 6 is pulled out after the fan carrier plate 11 is laid flat, the testing fan 14 is loaded on the fan carrier plate 11, meanwhile, the movable buckling arm 15 is used for pressing the edge of the testing fan 14, the fan carrier plate 11 is pushed and turned over, the testing fan is sucked on the support plate limiting frame 7 through the first magnet 13, and testing is carried out through a microphone 16 on one side of the support plate limiting frame 7.
A carrier plate limiting frame 7 is arranged on one side of the fan carrier plate 11, a bottom plate 6 is fixedly connected to the bottom of the carrier plate limiting frame 7, and a handle 9 is installed on one side of the bottom plate 6;
wherein the bottom plate 6 is pulled by the handle 9, the bottom plate 6 is slid on the rail 5 at the bottom, the bottom plate 6 is slid on the rail 5 by the handle 9, and the test fixture and the acoustic device at the top are moved to the side of the microphone 16 for testing.
The bottom of the bottom plate 6 is connected with a rail 5 in a sliding manner, and a bearing plate 4 is arranged at the bottom of the rail 5 and positioned at the top of the soundproof cotton 3;
wherein the bottom of bottom plate 6 is provided with the slider, slides on track 5 through the slider, and the bottom of loading board 4 and the top of chassis 10 are provided with soundproof cotton 3, and soundproof cotton 3 absorbs the noise that produces on loading board 4.
The correcting structure 12 comprises a correcting plate and a correcting pipe, and the inner wall of the correcting pipe is connected with the outer wall of the microphone 16 in a sliding manner;
the calibration structure 12 calibrates the distance of the microphone 16, and is attached to the back surface of the fan carrier 11 through the second magnet 17.
The bottom of the sound insulation box body 1 and the bottom of the sound insulation cotton 3 are provided with a bottom frame 10;
wherein the bottom frame 10 supports the acoustic device and the test fixture on the soundproof cotton 3 and the bottom plate 6
A second magnet 17 is arranged on one side of the correcting structure 12;
wherein the second magnet 17 connects the calibration structure 12 and the fan carrier plate 11 for calibrating the microphone 16.
The working principle is as follows: referring to fig. 1 to 8, first, the door of the sound-proof box 1 is opened, the correcting structure 12 is installed on the back of the fan carrier plate 11 through the second magnet 17, the distance of the microphone 16 is adjusted, the fan carrier plate 11 is laid flat, the handle 9 is pulled, the bottom plate 6 slides on the rail 5 installed on the top of the carrier plate 4, the bottom plate 6 is pulled out, the test fan 14 is loaded on the fan carrier plate 11, the latch arm 15 is moved to press the edge of the test fan 14, the fan carrier plate 11 is pushed in and turned over, the fan carrier plate 11 is connected with the carrier plate limit frame 7 through the first magnet 13, the microphone 16 is supported through the microphone support 8 on the top of the carrier plate 4, the bottom plate 6 is pushed into one side of the microphone 16, the test fan 14 is tested, and sound absorption is performed through the sound-proof cotton 3 inside the sound-proof box 1.
While the embodiments of the present invention have been described in terms of practical embodiments, they are not to be construed as limiting the meaning of the present invention, and modifications of the embodiments and combinations with other embodiments will be apparent to those skilled in the art in light of the present description.
Claims (6)
1. Fan noise test equipment, characterized by, includes:
the sound insulation box comprises a sound insulation box body (1), wherein a sound insulation box junction box (2) is arranged outside the sound insulation box body (1), and sound insulation cotton (3), acoustic equipment and a test fixture are arranged inside the sound insulation box body (1);
the acoustic equipment comprises a microphone bracket (8) and a microphone (16), wherein the outer wall of the microphone (16) is sleeved at one end of the microphone bracket (8);
the test fixture comprises a movable buckling arm (15), a test fan (14) is arranged on the inner wall of the movable buckling arm (15), a fan carrier plate (11) is arranged on one side of the movable buckling arm (15), a correction structure (12) is arranged on the back of the fan carrier plate (11), and first magnets (13) are arranged on the two front sides of the fan carrier plate (11) and on the two sides of the movable buckling arm (15).
2. The fan noise test apparatus of claim 1, wherein: one side of the fan carrier plate (11) is provided with a carrier plate limiting frame (7), the bottom of the carrier plate limiting frame (7) is fixedly connected with a bottom plate (6), and a handle (9) is installed on one side of the bottom plate (6).
3. The fan noise test apparatus of claim 2, wherein: the bottom of bottom plate (6) sliding connection has track (5), the bottom of track (5) and the top that is located soundproof cotton (3) are provided with loading board (4).
4. The fan noise test apparatus of claim 1, wherein: the correcting structure (12) comprises a correcting plate and a correcting pipe, and the inner wall of the correcting pipe is in sliding connection with the outer wall of the microphone (16).
5. The fan noise test apparatus of claim 1, wherein: and the bottom of the sound insulation box body (1) and the bottom of the sound insulation cotton (3) are provided with a bottom frame (10).
6. The fan noise test apparatus of claim 1, wherein: and a second magnet (17) is arranged on one side of the correction structure (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123145813.4U CN216747923U (en) | 2021-12-15 | 2021-12-15 | Fan noise test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123145813.4U CN216747923U (en) | 2021-12-15 | 2021-12-15 | Fan noise test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216747923U true CN216747923U (en) | 2022-06-14 |
Family
ID=81935174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123145813.4U Active CN216747923U (en) | 2021-12-15 | 2021-12-15 | Fan noise test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216747923U (en) |
-
2021
- 2021-12-15 CN CN202123145813.4U patent/CN216747923U/en active Active
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