CN105004488A - Sound leakage test box suitable for automobile rubber member and sound leakage test method - Google Patents
Sound leakage test box suitable for automobile rubber member and sound leakage test method Download PDFInfo
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- CN105004488A CN105004488A CN201510452252.2A CN201510452252A CN105004488A CN 105004488 A CN105004488 A CN 105004488A CN 201510452252 A CN201510452252 A CN 201510452252A CN 105004488 A CN105004488 A CN 105004488A
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- 238000012360 testing method Methods 0.000 title claims abstract description 83
- 238000010998 test method Methods 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000011161 development Methods 0.000 abstract description 2
- 238000012795 verification Methods 0.000 abstract 1
- 238000010009 beating Methods 0.000 description 10
- 238000013461 design Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 239000003292 glue Substances 0.000 description 3
- 238000012938 design process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
The invention discloses a sound leakage test box suitable for an automobile rubber member and a sound leakage test method. The sound leakage test box comprises a test box body, a cover plate and a test plate. The test box body has an internal hollow structure, and one end of the test box body is provided with an opening. The cover plate is used for sealing the opening end of the test box body and is provided with a test hole. The test plate is arranged on the cover plate and is provided with an installing hole accommodating a rubber member to be tested. The installing hole and the test hole are communicated. According to the sound leakage test box suitable for the automobile rubber member, the sound leakage test box can be used in the initial stage of development of the automobile through hole rubber member so that variable cost caused by unreasonable NVH of the rubber member can be avoided, and cost of secondary mould opening of the rubber member can be saved; and the NVH problem of rubber can be conveniently verified, a problem that NVH of single automobile through hole rubber member cannot be verified is solved, the NVH value of the automobile through hole rubber member can be reduced via verification of the test box, and reduction of brand image caused by customer complaint due to sound leakage of the rubber member can be avoided.
Description
Technical field
The present invention relates to automobile product technical field of measurement and test, specifically, the present invention relates to a kind of chamber of leakage sound and the leakage sound test method that are suitable for automobile rubber part.
Background technology
On automobile, all via holes arriving outdoor indoor all will carry out leakage sound test, the NVH that namely we often say tests, via hole rubber parts is one of them main part of detecting, mainly concentrate on fire wall and four and baggage room, the major function of rubber parts prevents protected object from being cut by panel beating or galling, but also to play sealing function simultaneously, sealing is mainly leaked and NVH two parts, wherein leak be rain or paddle again or carwash time client can the place of perception, but NVH is exactly the place of client's frequent energy perception, so this module is the place needing in Automobile Design process to pay close attention to, as designed unreasonable or not verifying fully in the design process, in upper high speed or the speed of a motor vehicle than in situation faster, just have obvious sensation, noise can be larger, even allow the intolerable state of client, the comfort level of client can be affected like this, client can produce complaint, affect the brand image of automobile.
As, for the rubber parts for the protection of wire harness on current automobile, be carry out leakage sound test on car load, but leakage sound test cannot be carried out to single piece of rubber part.
Summary of the invention
The invention provides a kind of chamber of leakage sound and the leakage sound test method that are suitable for automobile rubber part, object is the NVH problem facilitating checking rubber parts.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: the leakage sound chamber being suitable for automobile rubber part, comprising:
Test casing, it is inner hollow and one end has the structure of opening;
Cover plate, it for the openend of leakage test casing, and has instrument connection; And
Test board, it is arranged on cover plate, and has the mounting hole holding rubber parts to be tested, and mounting hole is communicated with instrument connection.
The inwall of described test casing is provided with sound insulating pad.
The inwall of described cover plate is provided with sound insulating pad.
The area of described mounting hole is less than the area of described instrument connection.
The interior diapire of described test casing is provided with one for placing the boss of sound source.
The top of described boss has one for holding the accommodating cavity of sound source.
The top of described boss be provided be communicated with described accommodating cavity get thing groove, and get thing groove and be arranged at around accommodating cavity.
Present invention also offers a kind of leakage sound test method being suitable for automobile rubber part, adopt the chamber of above-mentioned leakage sound, this leakage sound test method comprises step:
Sound source is positioned on the boss in test casing;
Protected object is installed on rubber parts to be tested;
Rubber parts with protected object is installed in the mounting hole of test board;
Test board is installed on cover plate;
Use the leakage sound value of leaking sound test instrument testing rubber part surrounding.
The present invention is suitable for the leakage sound chamber of automobile rubber part, just can come into operation, avoid the unreasonable NVH of rubber parts to cause establishing the expense of change, can save the expense of rubber parts twice-die-opening at automobile via hole rubber parts initial stage of development; The NVH problem of convenient checking rubber parts, is solved the problem that automobile via hole rubber parts single-piece NVH cannot verify, can be reduced the NVH value of automobile via hole rubber parts by the checking of this chamber, avoids rubber parts leakage acoustic conductance to cause client and complains that the brand image brought reduces.
Accompanying drawing explanation
Fig. 1 is the structural representation of leakage sound of the present invention chamber;
Fig. 2 is the vertical view of leakage sound of the present invention chamber;
Fig. 3 is the cut-open view of leakage sound of the present invention chamber;
Mark in above-mentioned figure is: 1, pillar; 2, casing is tested; 3, cover plate; 4, test board; 5, rubber parts; 6, wire harness; 7, instrument connection; 8, mounting hole; 9, boss; 10, accommodating cavity; 11, thing groove is got; 12, sound insulating pad.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, be described in further detail the specific embodiment of the present invention, object helps those skilled in the art to have more complete, accurate and deep understanding to design of the present invention, technical scheme, and contribute to its enforcement.
As shown in Figure 1 to Figure 3, the invention provides a kind of leakage sound chamber being suitable for automobile rubber part, this leakage sound chamber can just can the NVH situation of testing rubber part before rubber parts design phase or entrucking, thus convenient rectification, save time to the time of car load, save the workload that via hole rubber parts brings in the rear defective rectification of vehicle body test, thus save labour turnover.
The chamber of this leakage sound comprises test casing 2, cover plate 3 and test board 4.Test casing 2 is inner hollow and one end has the structure of opening.Cover plate 3 is the openends for leakage test casing 2, and has instrument connection 7.Test board 4 is arranged on cover plate 3, and have the mounting hole 8 holding rubber parts to be tested, and mounting hole 8 is communicated with instrument connection 7.
Specifically, consider the leakage acoustic seal of chamber when design, therefore selected material is all sealing and the good material of leakproof sound effective value, and the material of test casing 2 is the panel beating of the standard thickness of 10mm, and this panel beating inherently can play the effect of sound insulation; Consider again the thought that people-oriented, the convenient test of people is considered when design, the height of test casing 2 is designed to 0.8 meter, consider in the carrying adding overall appearance and test casing 2, the bottom of test casing 2 is provided with four pillars 1, and the height of pillar 1 is 0.3 meter, considers the holding capacity of four pillars 1, panel beating thickness and the panel beating consistency of thickness of test casing of pillar 1, select the standard panel beating of 10mm; Consider security when test, prevent the corner angle testing casing 2 itself from hurting tester, the edges and corners of test casing 2 are all designed with rounding.
As shown in Figure 3, the interior diapire of test casing 2 is provided with a boss 9, boss 9 is rectangular block shape structure, the height of boss 9 is half height of chamber, the length and width of boss 9 are respectively 0.3 meter, at the accommodating cavity 10 that top design diameter of boss 9 is 0.2 meter, during test, sound source is deposited in this accommodating cavity 10.Accommodating cavity 10 is longitudinally extend a segment distance towards boss 9 inside from the end face of boss 9 to be formed, and in order to picking and placeing conveniently of measuring sound source, respectively arranges one and gets thing groove 11, get thing groove 11 and be communicated with accommodating cavity 10 in the surrounding of accommodating cavity 10.Same reason, in order to prevent hurting staff in the process depositing sound source, has all done rounding boss 9 and accommodating cavity 10, each limit of getting thing groove 11.
As shown in Figure 3, test casing 2 is the rectangular box of upper end open, inner hollow, the interior diapire of test casing 2 and four madial walls are provided with the sound insulating pad that thickness is 25mm, the internal face of test casing 2 covers by the sound insulating pad of each position completely, and namely the length, width and height of sound insulating pad are all fitted closely with the internal face of test casing 2.For preventing sound insulating pad to be out of shape, sound insulating pad and test casing 2 are glued, or internal layer is at design one deck panel beating, the sound insulating pad of this test casing 2 is glued on test casing 2.This sound insulating pad is identical with the sound insulating pad of vehicle body fire wall, the junction PCV material glue between adjacent two sound insulating pad or with asphalt adhesive sealing, leak sound effective value consistent with the leakage sound value of sound insulating pad.
As depicted in figs. 1 and 2, cover plate 3 is for the upper end open of leakage test casing 2, and cover plate 3 is rectangular configuration.In cover plate 3, diapire is also provided with sound insulating pad, thickness and the material of sound insulating pad and the identical of the sound insulating pad that test casing 2 inwall is arranged herein, the size of the sound insulating pad on cover plate 3 is all 0.78 meter by design proportion length and width, just be installed on the sound insulating pad tested on casing 2 to bond with below, the soundproof effect after bonding is consistent with entirety.The material of cover plate 3 is the panel beating of thickness 10mm, the length and width of this panel beating are 0.8 meter, cover plate 3 the upper end open place of test casing 2 with test casing 2 and weld with glue, the leakage sound value of welding position and casing are consistent, and are also glued between the sound insulating pad that cover plate 3 and Qi Nei diapire are arranged.Middle position on cover plate 3 is reserved with an instrument connection 7, and this instrument connection 7 is through hole, the corresponding through hole that also setting is identical with instrument connection 7 in sound insulating pad.The setting of the sound insulating pad on cover plate 3 and in test casing 2, being the sound insulating seal in order to ensure leakage sound of the present invention chamber, guaranteeing that sound source can only spill from instrument connection 7, can not spill from other place and produce interference.
As depicted in figs. 1 and 2, the material of test board 4 is panel beating, and test board 4 is bolted and is installed on cover plate 3 above cover plate 3, test board 4 instrument connection 7 covered on cover plate 3, and between test board 4 and cover plate 3, blend compounds seals.The middle position of test board 4 arranges a mounting hole 8, and this mounting hole 8 is via hole, installs rubber parts to be tested in mounting hole 8, and mounting hole 8 is the through hole be communicated with instrument connection 7, and the area of mounting hole 8 is also less than the area of instrument connection 7.Test board 4 is as the carrier of rubber parts to be tested, and the thickness of test board 4 will be consistent with the thickness of real vehicle and flatness.
As shown in Figure 3, the wire harness on rubber parts is the body of rubber parts protection, and wire harness and rubber parts are also directly use waterproof sealing glue bond, also will meet leakage sound value; This wire harness wraps up, with real vehicle state consistency with wrapping waterproof according to the thickness of real vehicle wire harness.
Present invention also offers a kind of leakage sound test method being suitable for automobile rubber part, adopt above-mentioned leakage sound chamber, this leakage sound test method comprises following step:
(1) first test casing 2, cover plate 3, pillar 1, boss 9, sound insulating pad etc. are assembled by technical requirement;
(2) sound source is put into from instrument connection 7 test casing 2, and be positioned in the accommodating cavity 10 on boss 9;
(3) protected object is installed on rubber parts to be tested; As shown in Figure 1 to Figure 3, this protected object is wire harness, with real vehicle state consistency;
(4) rubber parts with protected object is installed in the mounting hole 8 of test board 4;
(5) test board 4 is installed on cover plate 3;
(6) the leakage sound value of leaking sound test instrument testing rubber part surrounding is used.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (8)
1. be suitable for the leakage sound chamber of automobile rubber part, it is characterized in that, comprising:
Test casing, it is inner hollow and one end has the structure of opening;
Cover plate, it for the openend of leakage test casing, and has instrument connection; And
Test board, it is arranged on cover plate, and has the mounting hole holding rubber parts to be tested, and mounting hole is communicated with instrument connection.
2. the leakage sound chamber being suitable for automobile rubber part according to claim 1, it is characterized in that, the inwall of described test casing is provided with sound insulating pad.
3. the leakage sound chamber being suitable for automobile rubber part according to claim 1, it is characterized in that, the inwall of described cover plate is provided with sound insulating pad.
4. the leakage sound chamber being suitable for automobile rubber part according to claim 1, it is characterized in that, the area of described mounting hole is less than the area of described instrument connection.
5. the leakage sound chamber being suitable for automobile rubber part according to claim 1, is characterized in that, the interior diapire of described test casing is provided with one for placing the boss of sound source.
6. the leakage sound chamber being suitable for automobile rubber part according to claim 5, is characterized in that, the top of described boss has one for holding the accommodating cavity of sound source.
7. the leakage sound chamber being suitable for automobile rubber part according to claim 6, is characterized in that, the top of described boss be provided be communicated with described accommodating cavity get thing groove, and get thing groove and be arranged at around accommodating cavity.
8. be suitable for the leakage sound test method of automobile rubber part, adopt the arbitrary described leakage sound chamber of claim 1 to 7, it is characterized in that, leak sound test method and comprise step:
Sound source is positioned on the boss in test casing;
Protected object is installed on rubber parts to be tested;
Rubber parts with protected object is installed in the mounting hole of test board;
Test board is installed on cover plate;
Use the leakage sound value of leaking sound test instrument testing rubber part surrounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510452252.2A CN105004488B (en) | 2015-07-27 | 2015-07-27 | The chamber of leakage sound and leakage sounding method for testing suitable for automobile rubber part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510452252.2A CN105004488B (en) | 2015-07-27 | 2015-07-27 | The chamber of leakage sound and leakage sounding method for testing suitable for automobile rubber part |
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| CN105004488A true CN105004488A (en) | 2015-10-28 |
| CN105004488B CN105004488B (en) | 2017-12-12 |
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| CN201510452252.2A Active CN105004488B (en) | 2015-07-27 | 2015-07-27 | The chamber of leakage sound and leakage sounding method for testing suitable for automobile rubber part |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546393A (en) * | 2016-10-25 | 2017-03-29 | 奇瑞汽车股份有限公司 | A kind of motor steering jacket leak tightness test device and test method |
| CN109612654A (en) * | 2019-02-20 | 2019-04-12 | 王友亮 | A kind of engine leak detector and its application method |
| CN112977288A (en) * | 2019-12-12 | 2021-06-18 | 上汽通用汽车有限公司 | Acoustic performance development device for steering column via hole sealing member |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2854238A1 (en) * | 1978-12-15 | 1980-06-19 | Bayerische Motoren Werke Ag | Passenger compartment door sealing and sound attenuation testing - using compressed air directed at seal and acoustic sensor |
| DE4237527A1 (en) * | 1992-11-06 | 1994-05-11 | Decker Hans Joachim Dipl Ing | Frame leak testing, esp. of motor vehicle body - involves generating sound inside body and detecting and evaluating sound outside body |
| JP2000180291A (en) * | 1998-12-15 | 2000-06-30 | Ishizuka Glass Co Ltd | Water invasion detecting device in pallet and method thereof |
| KR100973482B1 (en) * | 2009-12-09 | 2010-08-03 | (주)협우지여엔지니어링 | A leakage inspection apparatus using ultrasonic waves |
| CN201716162U (en) * | 2010-05-28 | 2011-01-19 | 浙江吉利汽车研究院有限公司 | Acoustics sealing detector of vehicle |
-
2015
- 2015-07-27 CN CN201510452252.2A patent/CN105004488B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2854238A1 (en) * | 1978-12-15 | 1980-06-19 | Bayerische Motoren Werke Ag | Passenger compartment door sealing and sound attenuation testing - using compressed air directed at seal and acoustic sensor |
| DE4237527A1 (en) * | 1992-11-06 | 1994-05-11 | Decker Hans Joachim Dipl Ing | Frame leak testing, esp. of motor vehicle body - involves generating sound inside body and detecting and evaluating sound outside body |
| JP2000180291A (en) * | 1998-12-15 | 2000-06-30 | Ishizuka Glass Co Ltd | Water invasion detecting device in pallet and method thereof |
| KR100973482B1 (en) * | 2009-12-09 | 2010-08-03 | (주)협우지여엔지니어링 | A leakage inspection apparatus using ultrasonic waves |
| CN201716162U (en) * | 2010-05-28 | 2011-01-19 | 浙江吉利汽车研究院有限公司 | Acoustics sealing detector of vehicle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546393A (en) * | 2016-10-25 | 2017-03-29 | 奇瑞汽车股份有限公司 | A kind of motor steering jacket leak tightness test device and test method |
| CN109612654A (en) * | 2019-02-20 | 2019-04-12 | 王友亮 | A kind of engine leak detector and its application method |
| CN112977288A (en) * | 2019-12-12 | 2021-06-18 | 上汽通用汽车有限公司 | Acoustic performance development device for steering column via hole sealing member |
| CN112977288B (en) * | 2019-12-12 | 2022-08-12 | 上汽通用汽车有限公司 | Acoustic performance development device for steering column via hole sealing member |
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| CN105004488B (en) | 2017-12-12 |
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