CN204301854U - A kind of automobile air conditioner compressor noise testing device - Google Patents
A kind of automobile air conditioner compressor noise testing device Download PDFInfo
- Publication number
- CN204301854U CN204301854U CN201420683384.7U CN201420683384U CN204301854U CN 204301854 U CN204301854 U CN 204301854U CN 201420683384 U CN201420683384 U CN 201420683384U CN 204301854 U CN204301854 U CN 204301854U
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- sound
- belt
- automobile air
- conditioner compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of automobile air conditioner compressor noise testing device, comprise anechoic chamber, driving mechanism and transmission mechanism, also comprise the sinking room be positioned at below anechoic chamber, described transmission mechanism is arranged in described sinking room, described automobile air conditioner compressor test machine is arranged in described anechoic chamber, and described driving mechanism is positioned at the outside of described anechoic chamber and described sinking room, and described test machine is connected with described driving mechanism by described transmission mechanism; The device reduces the interference of drive mechanism to sound field, make noise testing more accurate, decrease the additional noise that the rotation of transmission mechanism final drive wheel brings, cut off contacting of sound-proof wall and outer sound-proof wall in anechoic room, decrease the noise and vibration interference of driving mechanism, reduce the background noise of anechoic room.
Description
Technical field
The utility model belongs to noise testing device technical field, is specifically related to a kind of automobile air conditioner compressor noise testing device.
Background technology
Testing automobile compressor of air conditioner noise (sound pressure level in prior art, acoustic power level etc.) testing arrangement, as shown in fig. 1, comprise semi-anechoic room 1, driving mechanism 2 and transmission mechanism 3, transmission mechanism 3 and test machine 4 are placed in semi-anechoic room 1, it is outside that driving mechanism 2 is placed in semi-anechoic room 1, semi-anechoic room 1 adopts two-layer wall structure, comprise outer sound-proof wall 11, interior sound-proof wall 12 and be positioned at outer sound-proof wall 11, sound insulation cavity 13 between interior sound-proof wall 12, spring vibration isolation suspension structure 14(is provided with primarily of multiple suspension spring composition paralleling setting) below interior sound-proof wall 12, test machine 4 is positioned in the free found field of semianechoic room 1, rotating speed is given by transmission mechanism 3, automobile air conditioner compressor machine 4 to be measured is operated under standard condition, so that test its noise.Semianechoic room 1 must have enough low " background noise ", to reduce the interference of ambient noise to test machine 4 noise testing, need the drive that test machine 4(is carried containing test machine simultaneously) beyond noise source completely cut off, noise reduction controls, to reduce its interference to test machine 4 noise testing, driving mechanism 2(CD-ROM drive motor) comprise power transmission shaft 31 by V belt translation in transmission mechanism 3(, front end drive 32, final drive wheel 33) front end drive 32, power transmission shaft final drive wheel 33 is by the drive of V belt translation in test machine 4, need to wrap up power transmission shaft 31 simultaneously, sealing, noise reduction, to reduce its interference to test machine 4 noise, and power transmission shaft 31 outer wrapping sealing surface, attraction acoustic damping materials must be wrapped up, to reduce the destruction that its reflecting surface causes free found field.
Adopt the testing automobile compressor of air conditioner noise-measuring system of said structure, conventional transmission mechanism 3 enters the set-up mode of semianechoic room (see figure 1) along semianechoic room 1 bottom surface, have following shortcoming:
(1) gear train shaft 31 and Seal Design of partly eliminating the noise thereof, forms extra reflecting surface in the space near test machine 4, indoor half free found field of eliminating the noise of interference, thus affects measuring accuracy;
(2) drive 33 of power transmission shaft 31 end and test machine 4 are in same semi-anechoic room, during its transmission under running up, can produce additional noise, form interference to test machine 4 noise;
(3) power transmission shaft 31 and sealing layout of eliminating the noise thereof directly pass through semianechoic room 1, make sound-proof wall 12 and outer sound-proof wall 11 in semianechoic room 1 directly Hard link occur, destroy spring vibration isolation suspension mechanism 14.
Therefore, carry out in the experiment of noise testing at anechoic room, for the sound pressure level of testing automobile compressor of air conditioner, calculate its acoustic power level, compressor must be made to run under specified working condition, simultaneously need reduce driving mechanism as far as possible, acoustics that driving shaft mechanism produces and vibration effect, make the test value of compressor noise truer.
Utility model content
Technical problem to be solved of the present utility model is to provide automobile air conditioner compressor noise testing device, the device reduces the interference of drive mechanism to sound field, make noise testing more accurate, decrease the additional noise that the rotation of transmission mechanism final drive wheel brings, cut off contacting of sound-proof wall and outer sound-proof wall in anechoic room, decrease the noise and vibration interference of driving mechanism, reduce the background noise of anechoic room.
Above-mentioned technical problem of the present utility model is achieved through the following technical solutions: a kind of automobile air conditioner compressor noise testing device, comprise anechoic chamber, driving mechanism and transmission mechanism, also comprise the sinking room be positioned at below anechoic chamber, described transmission mechanism is arranged in described sinking room, described automobile air conditioner compressor test machine is arranged in described anechoic chamber, described driving mechanism is positioned at the outside of described anechoic chamber and described sinking room, and described test machine is connected with described driving mechanism by described transmission mechanism.
Described driving mechanism V belt translation is in described transmission mechanism, and described transmission mechanism V belt translation is in described test machine.
Described anechoic chamber comprises the sound insulation cavity between interior sound-proof wall, outer sound-proof wall and sound-proof wall, outer sound-proof wall, is provided with the passage that the belt for described V belt translation passes in described bottom sound-proof wall and bottom described outer sound-proof wall.
Be provided with belt noise reduction cover in described passage, described belt noise reduction cover touches with described interior sound-proof wall bottom connection but does not contact with bottom described outer sound-proof wall.
Described belt noise reduction cover comprises the shell be made up of perforated plate and the glass fibre liner be filled in described shell.
The belt of described V belt translation through described belt noise reduction cover, and leaves gap between described belt noise reduction cover and described belt.
The size in described gap is at more than 30mm.
Middle sound-proof wall is provided with in the centre of described sinking room.
Noise elimination orifice plate is provided with at the inwall of described sinking room.
Spring vibration isolation suspension mechanism is also provided with between the bottom of internal sound insulation wall and the bottom of outer soundproof wall.
Compared with prior art, the present invention has following beneficial effect:
(1) the automobile air conditioner compressor noise testing device in the utility model, decrease transmission mechanism layout and hermetically-sealed construction thereof to the interference of free found field, noise testing is more convenient, accurate;
(2) additional noise that the rotation of power transmission shaft final drive wheel brings is decreased;
(3) cut off the contact in anechoic room between sound-proof wall and outer sound-proof wall, decreased the interference of the noise and vibration of driving mechanism, also reduce anechoic room background noise.
Accompanying drawing explanation
Fig. 1 is automobile air conditioner compressor noise testing device figure in prior art;
Fig. 2 is the automobile air conditioner compressor noise testing device figure in the utility model;
Fig. 3 is the enlarged diagram that in the automobile air conditioner compressor noise testing device in the utility model, belt is placed in passage;
Fig. 4 is the belt noise reduction nested structure schematic diagram in the automobile air conditioner compressor noise testing device in the utility model.
Detailed description of the invention
This automobile air conditioner compressor noise testing device as shown in Figure 2, comprise anechoic chamber 10, driving mechanism 20 and transmission mechanism 30, also comprise the sinking room 50 be positioned at below anechoic chamber, transmission mechanism 30 is arranged in sinking room 50, automobile air conditioner compressor test machine 40 is arranged in anechoic chamber 10, and driving mechanism 20 is positioned at the outside of anechoic chamber 10 and sinking room 50, and test machine 40 is connected with driving mechanism 20 by transmission mechanism 30.
Driving mechanism 20 V belt translation (by belt 60) is in transmission mechanism 30, and transmission mechanism 30 V belt translation transmission (by belt 60) is in test machine 40.
Anechoic chamber 10 comprises the sound insulation cavity 103 between interior sound-proof wall 102, outer sound-proof wall 101 and sound-proof wall 102, outer sound-proof wall 101, is provided with the passage 70 supplying the belt 60 of V belt translation to pass bottom interior sound-proof wall 102 and bottom outer sound-proof wall 101.
Be provided with belt noise reduction cover 80 in passage 70, belt noise reduction cover 80 touches with the bottom connection of interior sound-proof wall 102 but does not contact with bottom outer sound-proof wall 101, as shown in Figure 3.
Belt noise reduction cover 80 comprises the shell 801 be made up of perforated plate and the glass fibre liner 802 be filled in shell, as shown in Figure 4.
The belt 60 of V belt translation through belt noise reduction cover 80, and take turns 303 with the drive 401 of test machine 40 with the final drive of transmission mechanism 30 respectively and is connected, and belt noise reduction is overlapped between 80 and belt 60 and left gap 701, and the size in gap is at more than 30mm.
Middle sound-proof wall 501 is provided with in the centre of sinking room 50.
Inwall in sinking room 50 is also provided with noise elimination orifice plate 502.
Between the bottom of internal sound insulation wall 102 and the bottom of outer soundproof wall 101, be also provided with spring vibration isolation suspension mechanism 104, its primarily of to be located at bottom interior sound-proof wall 102 and bottom outer sound-proof wall 101 between the multiple suspension springs compositions paralleling setting.
In the utility model, anechoic chamber 10 adopts two-layer wall structure, comprise interior sound-proof wall 102 and outer sound insulation strong by 101, and the sound insulation cavity 103 between interior sound-proof wall 102 and outer sound insulation strong 101, be provided with the spring vibration isolation suspension mechanism 104 be made up of the multiple suspension springs paralleling setting between bottom interior sound-proof wall 102 and bottom outer sound-proof wall 101.
Wherein, formation is dug downwards by the bottom surface of the outer sound-proof wall 101 by anechoic chamber 10 in sinking room 50, be only herein and enumerate, and it is non-limiting, also other modes can be adopted to make, and wherein the space of sinking room 50 should be enough large, can hold transmission mechanism 30, and leaving enough service clearances, transmission mechanism 30 is placed in sinking room 50.
Middle sound-proof wall 501 is set up in the centre of sinking room 50, inwall is installed noise elimination orifice plate 502, can reduce the noise radiation of transmission mechanism 30.
Driving mechanism 20 passes through belt 60 V belt translation in transmission mechanism 30, driving mechanism 20 comprises CD-ROM drive motor and is located at the drive on CD-ROM drive motor, transmission mechanism 30 comprises power transmission shaft 301, the front end drive 302 being located at power transmission shaft 30 front end and the final drive wheel 303 being located at power transmission shaft 301 end, drive on CD-ROM drive motor is connected with the front end drive 302 of power transmission shaft 301 front end by belt 60, and the final drive wheel 303 of power transmission shaft 301 end is connected with the drive 401 of test machine 40 by belt 60.
The passage 70 passed for belt 60 is provided with bottom interior sound-proof wall 102 and bottom outer sound-proof wall 101, belt Sound damping cover 80 is provided with in passage 70, belt 60 is through belt Sound damping cover 80, belt Sound damping cover 80 can not contact with the bottom surface of outer sound-proof wall 101, firmly contacts with the generation of outer sound-proof wall 101 bottom surface to avoid interior sound-proof wall 102 bottom surface.
Belt Sound damping cover 80 outer surface adopts perforated plate configuration, liner filled glass fiber, and structure size is with reference to actual belt size design; Belt passage needs to retain sufficient space, and during belt movement, and in passage, each wall needs the space retaining more than 30mm, to avoid collision and the wearing and tearing of belt, sees Fig. 4.
The above embodiment only have expressed Some Species embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.Without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (10)
1. an automobile air conditioner compressor noise testing device, comprise anechoic chamber, driving mechanism and transmission mechanism, it is characterized in that: also comprise the sinking room be positioned at below anechoic chamber, described transmission mechanism is arranged in described sinking room, described automobile air conditioner compressor test machine is arranged in described anechoic chamber, and described driving mechanism is positioned at the outside of described anechoic chamber and described sinking room, and described test machine is connected with described driving mechanism by described transmission mechanism.
2. automobile air conditioner compressor noise testing device according to claim 1, is characterized in that: described driving mechanism V belt translation is in described transmission mechanism, and described transmission mechanism V belt translation is in described test machine.
3. automobile air conditioner compressor noise testing device according to claim 2, it is characterized in that: described anechoic chamber comprises the sound insulation cavity between interior sound-proof wall, outer sound-proof wall and sound-proof wall, outer sound-proof wall, bottom sound-proof wall and bottom described outer sound-proof wall, be provided with the passage that the belt for described V belt translation passes in described.
4. automobile air conditioner compressor noise testing device according to claim 3, is characterized in that: be provided with belt noise reduction cover in described passage, and described belt noise reduction cover touches with described interior sound-proof wall bottom connection but do not contact with bottom described outer sound-proof wall.
5. automobile air conditioner compressor noise testing device according to claim 4, is characterized in that: described belt noise reduction cover comprises the shell be made up of perforated plate and the glass fibre liner be filled in described shell.
6. automobile air conditioner compressor noise testing device according to claim 4, is characterized in that: the belt of described V belt translation through described belt noise reduction cover, and leaves gap between described belt noise reduction cover and described belt.
7. automobile air conditioner compressor noise testing device according to claim 6, is characterized in that: the size in described gap is at more than 30mm.
8. the automobile air conditioner compressor noise testing device according to any one of claim 1-7, is characterized in that: be provided with middle sound-proof wall in the centre of described sinking room.
9. automobile air conditioner compressor noise testing device according to claim 8, is characterized in that: be provided with noise elimination orifice plate at the inwall of described sinking room.
10. automobile air conditioner compressor noise testing device according to claim 3, is characterized in that: between the bottom of internal sound insulation wall and the bottom of outer soundproof wall, be also provided with spring vibration isolation suspension mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683384.7U CN204301854U (en) | 2014-11-14 | 2014-11-14 | A kind of automobile air conditioner compressor noise testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683384.7U CN204301854U (en) | 2014-11-14 | 2014-11-14 | A kind of automobile air conditioner compressor noise testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204301854U true CN204301854U (en) | 2015-04-29 |
Family
ID=53107387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420683384.7U Active CN204301854U (en) | 2014-11-14 | 2014-11-14 | A kind of automobile air conditioner compressor noise testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204301854U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241545A (en) * | 2015-10-30 | 2016-01-13 | 李宗明 | Detection method and system of air-conditioning noises |
| CN105486530A (en) * | 2016-01-13 | 2016-04-13 | 昆明理工大学 | Vibration noise test bench for refrigerator wind hood |
| CN105737974A (en) * | 2016-04-25 | 2016-07-06 | 吉林大学 | Noise testing stand for air conditioner compressor of automobile |
| CN107860533A (en) * | 2017-12-01 | 2018-03-30 | 广州广电计量检测股份有限公司 | One kind is used for vehicle air conditioning outlet sealing and ventilation noise testing device |
| CN109944476A (en) * | 2019-04-17 | 2019-06-28 | 北京卫星环境工程研究所 | The sound insulation vibration insulation structure of high sound intensity acoustic reverberation room |
| CN110763326A (en) * | 2018-07-27 | 2020-02-07 | 上汽通用汽车有限公司 | Starter vibration noise test bench system |
| CN110940412A (en) * | 2018-09-21 | 2020-03-31 | 奥克斯空调股份有限公司 | Air conditioner noise testing device and testing method |
| CN111207925A (en) * | 2020-01-15 | 2020-05-29 | 江西宏伟轴承有限公司 | High-precision bearing noise detection device |
| CN111207942A (en) * | 2020-02-27 | 2020-05-29 | 重庆大学 | NVH rack test system of air condition compressor |
-
2014
- 2014-11-14 CN CN201420683384.7U patent/CN204301854U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241545A (en) * | 2015-10-30 | 2016-01-13 | 李宗明 | Detection method and system of air-conditioning noises |
| CN105486530A (en) * | 2016-01-13 | 2016-04-13 | 昆明理工大学 | Vibration noise test bench for refrigerator wind hood |
| CN105737974A (en) * | 2016-04-25 | 2016-07-06 | 吉林大学 | Noise testing stand for air conditioner compressor of automobile |
| CN107860533A (en) * | 2017-12-01 | 2018-03-30 | 广州广电计量检测股份有限公司 | One kind is used for vehicle air conditioning outlet sealing and ventilation noise testing device |
| CN110763326A (en) * | 2018-07-27 | 2020-02-07 | 上汽通用汽车有限公司 | Starter vibration noise test bench system |
| CN110763326B (en) * | 2018-07-27 | 2022-12-13 | 上汽通用汽车有限公司 | Starter vibration noise test bench system |
| CN110940412A (en) * | 2018-09-21 | 2020-03-31 | 奥克斯空调股份有限公司 | Air conditioner noise testing device and testing method |
| CN109944476A (en) * | 2019-04-17 | 2019-06-28 | 北京卫星环境工程研究所 | The sound insulation vibration insulation structure of high sound intensity acoustic reverberation room |
| CN111207925A (en) * | 2020-01-15 | 2020-05-29 | 江西宏伟轴承有限公司 | High-precision bearing noise detection device |
| CN111207925B (en) * | 2020-01-15 | 2021-12-07 | 江西宏伟轴承有限公司 | High-precision bearing noise detection device |
| CN111207942A (en) * | 2020-02-27 | 2020-05-29 | 重庆大学 | NVH rack test system of air condition compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204301854U (en) | A kind of automobile air conditioner compressor noise testing device | |
| CN102998124B (en) | NVH (noise, vibration and harshness) semi-anechoic room test system and method | |
| CN104897396A (en) | Mechanical transmission loaded noise test stand and test method | |
| CN204740066U (en) | Mechanical transmission loading noise level test rack | |
| CN103644013A (en) | Automobile muffler | |
| CN102625201B (en) | Wind noise reducing device for microphone | |
| CN104595987B (en) | A kind of compressor vibration and noise reducing device | |
| CN102507118B (en) | Medium and small-sized bearing noise vibration test system | |
| CN204593648U (en) | A kind of compressor vibration and noise reducing device | |
| CN205789089U (en) | A kind of sound absorption unit body and sound-absorbing system | |
| CN102747848A (en) | Silencing room | |
| CN102733891A (en) | Exhaust silencer of damping type engine | |
| CN111983033A (en) | Acoustic material high-frequency noise reduction performance testing equipment and evaluation method | |
| CN110987472B (en) | Bearing seat noise processing system for NVH test of pure electric vehicle electric drive system | |
| CN104501937B (en) | Method for testing radiation noise of power assembly of finished vehicle | |
| CN205898973U (en) | Motor testboard frame for electric automobile | |
| CN202736473U (en) | Noise abatement case | |
| CN202291299U (en) | Compaction platform | |
| CN205580749U (en) | A sound -proof box for vehicle chassis bush developments abnormal sound testing arrangement | |
| CN105464755A (en) | Automobile muffler | |
| CN209586684U (en) | A kind of shock-reducing and noise-reducing structure of electric scroll compressor | |
| CN204128680U (en) | A kind of sealable tank utilizing noise vibration measuring | |
| CN218035679U (en) | Acoustic experimental device for NVH (noise, vibration and harshness) test of power assembly for new energy vehicle | |
| CN206562882U (en) | A kind of removable shutter blimp | |
| CN103162056A (en) | Pipeline through-wall sound insulation construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 510302 No. 204 Xingang West Road, Haizhu District, Guangzhou City, Guangdong Province Patentee after: China Electrical Appliance Research Institute Co., Ltd. Address before: 510302 No. 204 West Xingang Road, Guangdong, Guangzhou Patentee before: China National Electric Apparatus Research Institute Co., Ltd. |
|
| CP03 | Change of name, title or address |