CN204578758U - A kind of fixed device for microphone for internal car noise test - Google Patents
A kind of fixed device for microphone for internal car noise test Download PDFInfo
- Publication number
- CN204578758U CN204578758U CN201520154217.8U CN201520154217U CN204578758U CN 204578758 U CN204578758 U CN 204578758U CN 201520154217 U CN201520154217 U CN 201520154217U CN 204578758 U CN204578758 U CN 204578758U
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- microphone
- fixed
- aluminium block
- headrest
- connecting rod
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Abstract
The utility model relates to a kind of fixed device for microphone for internal car noise test, in car, seat comprises the headrest, connecting rod and the backrest that connect successively, fixture comprises the aluminium block assembly be fixed on connecting rod, fixture also comprises the microphone fixed lever for installing microphone, and this microphone fixed lever is fixed on connecting rod by aluminium block assembly.Compared with prior art, the utility model adopts microphone fixed lever to be indirectly fixed on connecting rod by microphone by aluminium block assembly, the position of microphone can be made more forward, more press close to the actual position of passenger's ear, makes the data that record more accurate.
Description
Technical field
The utility model relates to automobile noise test field, especially relates to a kind of fixed device for microphone for internal car noise test.
Background technology
At present, automobile vibration and noise (NVH) are subject to the very large attention of automaker, and car load about has the failure problems of 1/3 relevant with the NVH problem of vehicle.The requirement of consumer to auto NVH is also more and more higher, and the vehicle of low noise often can attract the eyeball of consumer.
The test of automobile noise and optimization have occupied the most of the time of automaker.Internal car noise focus is the left ear of driver and auris dextra mainly, and the left ear of passenger and auris dextra.Because these positions represent driver or the passenger primary evaluation for vehicle noise.Carrying out measuring at these key position cloth microphones is Main Means car load noise being carried out to test analysis.Traditional microphone fixing means uses coarse adhesive tape or fixture simply to fix often.In automobile noise test process, especially in road test process, fixture is easy to drop or shake, and cannot ensure the position of microphone.The accuracy of internal car noise test is had an impact.Therefore, design is a kind of easy for installation, and fixing reliable fixed device for microphone is necessary for noise testing.
In automobile noise test, when especially testing at test site, need rapidly and accurately the microphone that driver and occupant locate to be arranged into require position.The fixture of current use is general more coarse, and precision cannot meet very well.Such as Chinese patent CN 201941685 U discloses a kind of mounting bracket, comprises aluminium block, and aluminium block one end is provided with D shape groove, and the other end is provided with the through hole coordinated with headrest support bar.Because transducer is placed in circular groove, transducer can move freely in circular groove, and headrest support bar is connected with aluminium block through through hole, and aluminium block can be up and down, also can rotate around headrest support bar.Transducer is fixed on headrest support bar place by this mounting bracket, but reality is when passenger takes these vehicles, passenger faces upward to lie on the seat, especially along with the development of mobile Internet, a lot of passenger all at oneself intelligent movable equipment of operation, therefore this interior noise testing sensor fixture the transducer fixed can not the noise heard of real simulation passenger.
Summary of the invention
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and provide a kind of for internal car noise test fixed device for microphone.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of fixed device for microphone for internal car noise test, in car, seat comprises the headrest, connecting rod and the backrest that connect successively, described fixture comprises the aluminium block assembly be fixed on connecting rod, described fixture also comprises the microphone fixed lever for installing microphone, and this microphone fixed lever is fixed on connecting rod by aluminium block assembly.
Described aluminium block assembly comprises headrest fixing aluminium block, microphone set bolt and the microphone for fixing microphone fixed lever and fixes aluminium block, described microphone is fixed aluminium block and is connected by the fixing aluminium block of microphone set bolt and headrest, and described headrest is fixed aluminium block and is fixed on connecting rod.
Described headrest is fixed aluminium block and is provided with the through hole coordinated with connecting rod, and described aluminium block assembly also comprises headrest set bolt, and described headrest is fixed after aluminium block is inserted in connecting rod and fixed by headrest set bolt.
Described microphone is fixed aluminium block and is provided with the connecting hole with microphone fixed lever interference fit, and described microphone fixed lever is plugged in this connecting hole.
Described microphone fixed lever is hollow rods, which is provided with the axially extending bore for grafting microphone.
Compared with prior art, the utility model has the following advantages:
1) adopt microphone fixed lever to be indirectly fixed on connecting rod by microphone by aluminium block assembly, the position of microphone can be made more forward, more press close to the actual position of passenger's ear, make the data that record more accurate.
2) mode that aluminium block assembly fixes aluminium block by microphone and fixing aluminium block of resting the head on is fixed by microphone set bolt, can be implemented in while saving material and reduces difficulty of processing.
3) fixing for headrest aluminium block is fixed on the mode on connecting rod by employing headrest set bolt, simple and reliable.
4) adopt the mode of interference fit can make to be connected more fastening between connecting hole with microphone fixed lever, eliminate the parts that bolt etc. is fixing simultaneously, can be cost-saving.
Accompanying drawing explanation
Fig. 1 is the explosive view of the utility model fixture;
Fig. 2 is the scheme of installation of the utility model fixture;
Wherein: 1, microphone fixed lever, 2, headrest set bolt, 3, the fixing aluminium block of headrest, 4, microphone fixes aluminium block, 5, microphone set bolt, 6, connecting rod, 7, headrest, 8, backrest.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.The present embodiment is implemented premised on technical solutions of the utility model, give detailed execution mode and concrete operating process, but protection range of the present utility model is not limited to following embodiment.
A kind of fixed device for microphone for internal car noise test, as shown in Figure 2, in car, seat comprises the headrest 7, connecting rod 6 and the backrest 8 that connect successively, as depicted in figs. 1 and 2, fixture comprises the aluminium block assembly be fixed on connecting rod 6, fixture also comprises the microphone fixed lever 1 for installing microphone, and this microphone fixed lever 1 is fixed on connecting rod 6 by aluminium block assembly.
Aluminium block assembly comprises headrest fixing aluminium block 3, microphone set bolt 5 and the microphone for fixing microphone fixed lever 1 and fixes aluminium block 4, the fixing aluminium block 3 of headrest is fixed on connecting rod 6, and microphone is fixed aluminium block 4 and is connected by the fixing aluminium block 3 of microphone set bolt 5 and headrest.It is made of aluminum that aluminium block 4 fixed by the fixing aluminium block 3 of headrest and microphone, quality is light, the clamping force needed is less, convenient manufacture, wherein the fixing aluminium block 3 of headrest and microphone fix the second screw and the 3rd screw that aluminium block 4 are respectively equipped with and coordinate with microphone set bolt 5, and microphone to be fixed aluminium block 4 by the second screw and the 3rd screw and rested the head on and fixes together with aluminium block 3 compact siro spinning technology by microphone set bolt 5.Both positions are made to keep fixing.
The fixing aluminium block 3 of headrest is provided with the through hole coordinated with connecting rod 6, aluminium block assembly also comprises headrest set bolt 2, fixed by headrest set bolt 2 after the fixing aluminium block 3 of headrest is inserted in connecting rod 6, the fixing aluminium block 3 of headrest is provided with the first screw coordinated with set bolt 2 of resting the head on, this first screw and through hole vertical connection.
In order to easy to process, the first screw in the present embodiment and the second screw are point-blank.
In the present embodiment, microphone set bolt 5 and headrest set bolt 2 are tommyhead bolt, and are Steel Bolt, and intensity is comparatively large, prevents from fractureing in rotary course.
Microphone is fixed aluminium block 4 and is provided with the connecting hole with microphone fixed lever 1 interference fit, microphone fixed lever 1 is plugged in connecting hole, microphone fixed lever 1 and microphone are fixed aluminium block 4 and are adopted interference fit to be connected, and both relative positions cannot be changed.
Microphone fixed lever 1 is made up of duroplasts, for hollow rods, the microphone diameter needing clamping is depended in the aperture, inside of rod member, which is provided with the axially extending bore for grafting microphone 9, if microphone 9 is too small, then first can insert again in microphone fixed lever 1 after microphone 9 outer felt adhesive tape, make microphone 9 can not slippage in test process.
During use, headrest 7 extracted together with connecting rod 6 or headrest 7 is extracted, more fixing for headrest aluminium block 3 is inserted in connecting rod 6, inserting by connecting rod 6 in the through hole of the fixing aluminium block 3 of headrest, again headrest 7, connecting rod 6 and backrest 8 are assembled afterwards.
After fixing for headrest aluminium block 3 is adjusted to desired location according to microphone level altitude, headrest set bolt 2 is screwed in the first screw and contacts with connecting rod 6, and keep fixing with connecting rod 6 fastening make to rest the head on fixing aluminium block 3 and connecting rod 6 position.When needing the vertical range regulating microphone, can adjust by regulating the upper-lower height of the fixing aluminium block 3 of headrest and headrest set bolt 2.
Microphone fixed aluminium block 4 by microphone set bolt 5 to be connected and fixed with the fixing aluminium block 3 of headrest and to realize the fixing of microphone, when needing the vertical height regulating microphone, microphone can be made to fix aluminium block 4 rotate around the fixing aluminium block 3 of headrest, then use microphone to fix tommyhead bolt 5 and fix both, the position making microphone fix aluminium block 4 and the fixing aluminium block 3 of headrest remains unchanged.When needing the horizontal range regulating microphone, the degree of depth can inserted in microphone fixed lever 1 by microphone 9 is regulated, or by regulating pivoting microphone to fix aluminium block 4 and regulating the height of the fixing aluminium block 3 of headrest to realize.
Claims (5)
1. the fixed device for microphone for internal car noise test, in car, seat comprises the headrest (7), connecting rod (6) and the backrest (8) that connect successively, described fixture comprises the aluminium block assembly be fixed on connecting rod (6), it is characterized in that, described fixture also comprises the microphone fixed lever (1) for installing microphone, and this microphone fixed lever (1) is fixed on connecting rod (6) by aluminium block assembly.
2. a kind of fixed device for microphone for internal car noise test according to claim 1, it is characterized in that, described aluminium block assembly comprises headrest fixing aluminium block (3), microphone set bolt (5) and the microphone for fixing microphone fixed lever (1) and fixes aluminium block (4), described microphone is fixed aluminium block (4) and is connected by the fixing aluminium block (3) of microphone set bolt (5) and headrest, and described headrest is fixed aluminium block (3) and is fixed on connecting rod (6).
3. a kind of fixed device for microphone for internal car noise test according to claim 2, it is characterized in that, described headrest is fixed aluminium block (3) and is provided with the through hole coordinated with connecting rod (6), described aluminium block assembly also comprises headrest set bolt (2), and described headrest is fixed after aluminium block (3) is inserted in connecting rod (6) and fixed by headrest set bolt (2).
4. a kind of fixed device for microphone for internal car noise test according to claim 2, it is characterized in that, described microphone is fixed aluminium block (4) and is provided with the connecting hole with microphone fixed lever (1) interference fit, and described microphone fixed lever (1) is plugged in this connecting hole.
5. according to a kind of fixed device for microphone for internal car noise test in claim 1-4 described in arbitrary, it is characterized in that, described microphone fixed lever (1) is hollow rods, which is provided with the axially extending bore for grafting microphone (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520154217.8U CN204578758U (en) | 2015-03-18 | 2015-03-18 | A kind of fixed device for microphone for internal car noise test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520154217.8U CN204578758U (en) | 2015-03-18 | 2015-03-18 | A kind of fixed device for microphone for internal car noise test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204578758U true CN204578758U (en) | 2015-08-19 |
Family
ID=53871343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520154217.8U Expired - Fee Related CN204578758U (en) | 2015-03-18 | 2015-03-18 | A kind of fixed device for microphone for internal car noise test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204578758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571995A (en) * | 2018-05-16 | 2018-09-25 | 北京海纳川汽车部件股份有限公司 | Mounting device for installing microphone |
| CN112013950A (en) * | 2020-08-31 | 2020-12-01 | 长安马自达汽车有限公司 | Microphone position device and method for testing noise in automobile |
-
2015
- 2015-03-18 CN CN201520154217.8U patent/CN204578758U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571995A (en) * | 2018-05-16 | 2018-09-25 | 北京海纳川汽车部件股份有限公司 | Mounting device for installing microphone |
| CN112013950A (en) * | 2020-08-31 | 2020-12-01 | 长安马自达汽车有限公司 | Microphone position device and method for testing noise in automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20180318 |