CN210862903U - Noise measuring device for automobile - Google Patents

Noise measuring device for automobile Download PDF

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Publication number
CN210862903U
CN210862903U CN201921214201.6U CN201921214201U CN210862903U CN 210862903 U CN210862903 U CN 210862903U CN 201921214201 U CN201921214201 U CN 201921214201U CN 210862903 U CN210862903 U CN 210862903U
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China
Prior art keywords
clamping
rod
microphone
measuring device
noise measuring
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CN201921214201.6U
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Chinese (zh)
Inventor
马龙
潘作峰
杨晓涛
林杰刚
马金英
邓玉伟
史继霞
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FAW Group Corp
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FAW Group Corp
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Abstract

The utility model discloses a noise measurement device for car belongs to car noise measurement technical field. The noise measurement device includes: the two ends of the supporting rod along the axis of the supporting rod are respectively connected with a front windshield and a rear windshield of the vehicle body; the mounting rod is arranged on the supporting rod; the microphone is arranged on the mounting rod through the first clamping mechanism. The utility model realizes the relative fixation of the support bar and the vehicle body by connecting the support bar with the front wind window and the rear wind window of the vehicle body, and ensures the stability of the microphone noise collection; meanwhile, the mounting position of the microphone in the vehicle is fixed by the mounting rod and the clamping mechanism, and the reliability and convenience of the microphone in the vehicle are guaranteed.

Description

Noise measuring device for automobile
Technical Field
The utility model relates to a car noise measurement field especially relates to a noise measurement device for car.
Background
In the field of noise measurement in an automobile, a microphone is one of the main measuring instruments, and the influence of the microphone on the measurement result is obvious at a fixed position in the automobile, so that for the convenience of comparing and analyzing the noise measurement of each automobile type, the noise measurement standard in the automobile is uniformly executed according to the national standard acoustic automobile noise measurement method (GB/T18697 and 2002).
The conventional microphone is generally fixed as follows: the microphone is fixed on the short rod support through a cloth-based adhesive tape, and then the short rod support is fixed on the seat headrest through a cloth tape, a rubber tape and the like. The disadvantage of this fixing method is that the position of the car seat is adjustable according to the individual difference of the driver, so the position of the microphone is also easy to change, causing the measuring condition to change; meanwhile, because the shapes and the materials of the seat headrests are different, the seat headrests are not convenient and reliable to fix by using the short rod support.
Therefore, it is desirable to provide a noise measuring device for an automobile that solves the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a noise measurement device for car can guarantee microphone reliability and convenience of car internal fixation.
In order to realize the purpose, the following technical scheme is provided:
a noise measuring device for an automobile, comprising:
the two ends of the supporting rod along the axis of the supporting rod are respectively connected with a front windshield and a rear windshield of the vehicle body;
the mounting rod is arranged on the supporting rod;
the microphone is arranged on the mounting rod through the first clamping mechanism.
Preferably, the supporting rod is connected with the front windshield and the rear windshield through suckers; the angle of the sucker relative to the supporting rod is adjustable.
Preferably, the supporting rod is a telescopic rod.
Preferably, the supporting rod comprises at least two sleeves which are sequentially sleeved, and the sleeving length of the two adjacent sleeves is adjustable.
Preferably, the support rod further comprises a fastener, and the fastener is sleeved outside the sleeved parts of the two adjacent sleeves.
Preferably, the first clamping mechanism comprises a first clamping piece and a second clamping piece which are arranged at intervals, and a clamping rod which is used for connecting the first clamping piece with the second clamping piece, a first clamping part is arranged on the first clamping piece and used for clamping the microphone, and a second clamping part and a third clamping part are arranged on the second clamping piece and used for clamping the installation rod and the clamping rod respectively.
Preferably, the first clamping portion includes a first clamping groove disposed on the first clamping member, the first clamping groove penetrates through the first clamping member along a first direction, and the microphone is clamped in the first clamping groove.
Preferably, the second clamping portion includes a second clamping groove formed in the second clamping member, the second clamping groove penetrates through the second clamping member along a second direction, and the mounting rod is clamped in the second clamping groove.
Preferably, the third clamping portion comprises a third clamping groove formed in the second clamping member, the third clamping groove penetrates through the second clamping member along a third direction, and the clamping rod is clamped in the third clamping groove.
Preferably, the mounting rod is connected with the supporting rod through a second clamping mechanism.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model realizes the relative fixation of the support bar and the vehicle body by connecting the support bar with the front wind window and the rear wind window of the vehicle body, and ensures the stability of the microphone noise collection; meanwhile, the mounting position of the microphone in the vehicle is fixed by the mounting rod and the clamping mechanism, and the reliability and convenience of the microphone in the vehicle are guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a noise measurement device for an automobile according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic structural diagram of the first clamping mechanism in the embodiment of the present invention.
Reference numerals:
100-a microphone;
1-a support bar; 11-a sleeve; 12-a fastener; 13-connecting column;
2-mounting a rod;
3, a sucker; 31-a suction cup body; 32-a connector; 321-a through groove; 33-connecting bolts;
4-a first clamping mechanism; 41-a first clamp; 411-a first card slot; 4111-a clamping part; 4112-a fastening part; 412-a first fastening bolt; 42-a second clamp; 421-a second card slot; 422-second fastening bolt; 423-a third card slot; 424-third fastening bolt; 43-a clamping bar;
5-a second clamping mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1, the present embodiment discloses a noise measuring apparatus for an automobile, including: the supporting rod 1, locate installation pole 2 on the supporting rod 1 and locate microphone 100 on installation pole 2, the both ends of supporting rod 1 along its axis are connected with the preceding wind window and the back wind window of automobile body respectively, and microphone 100 locates on installation pole 2 through first fixture 4. In the embodiment, the support rod 1 is connected with the front windshield and the rear windshield of the vehicle body, so that the support rod 1 and the vehicle body are relatively fixed, and the noise collection stability of the microphone 100 is ensured; meanwhile, the mounting position of the microphone 100 in the vehicle is fixed by the mounting rod 2 and the clamping mechanism, so that the reliability and convenience of mounting the microphone 100 in the vehicle are ensured.
Further, support rod 1 and preceding wind window and back wind window pass through 3 fixed connection of sucking disc, adopt 3 fixed modes of sucking disc to guarantee the stable connection between support rod 1 and the automobile body, can also avoid damaging preceding wind window or back wind window. Sucking disc 3 is the sucking disc of the TL6AMB model of the concrete optional WPG producer, and the mode that its accessible external force was bled improves adsorption strength, and then improves the stability of being connected of bracing piece 1 and wind window. As shown in fig. 2, the suction cup 3 includes a suction cup body 31 and a connecting member 32 disposed on the suction cup body 31, and the suction cup body 31 is attached to the front windshield or the rear windshield; the connecting member 32 is provided with a through groove 321, and after the end of the support rod 1 extends into the through groove 321, the support rod 1 is fastened with the connecting member 32 by using a bolt structure. Optionally, all seted up the through-hole on the lateral wall of bracing piece 1 and logical groove 321, rethread nut fastens bracing piece 1 and connecting piece 32 behind the through-hole that connecting bolt 33 passed on logical groove 321 and the bracing piece 1, because connecting bolt 33 rotates relatively to sucking disc body 31 and connecting piece 32, and then changes sucking disc 3 for the angle of bracing piece 1, makes sucking disc 3 adapt to the preceding wind window of different motorcycle types and the inclination of back wind window, has improved the suitability that adopts sucking disc 3 to adsorb the connection. Further, a connecting column 13 can be optionally arranged at the end part of the support rod 1 so as to be inserted into the through groove 321; the connection post 13 is provided with a through hole into which the connection bolt 33 is inserted. The optional support bar 1 is integrally formed with the attachment post 13.
The interval between preceding windshield and the back windshield is the change in car Z upwards, and the interval between the preceding windshield of different motorcycle types and the back windshield is also different simultaneously, consequently, in order to improve this noise testing arrangement's commonality, reduces the test cost, and the length of bracing piece 1 can change as required, and bracing piece 1 is the telescopic link promptly. Further, the bracing piece 1 includes two at least sleeve pipes 11 that cup joint in proper order, and the axis of different sleeve pipes 11 coincides each other, through the length that changes the cup joint part of double-phase adjacent sleeve pipe 11, changes the overall length of whole bracing piece 1, and then makes the both ends of bracing piece 1 can be connected with preceding windshield and back windshield all the time. In this embodiment, the supporting rod 1 optionally comprises two sleeves 11, namely a first sleeve and a second sleeve, and the diameter of the first sleeve is smaller than that of the second sleeve, and the first sleeve is sleeved in the second sleeve. Further, the support rod 1 further comprises a fastening member 12, and after the length of the sleeved portion of two adjacent sleeves 11 is determined, the two adjacent sleeves 11 are fastened by the fastening member 12 to maintain the stability of the length of the support rod 1. The optional fastener 12 is an anchor ear or a tie strap, preferably an anchor ear in this embodiment, and the anchor ear is sleeved outside the sleeving part of two adjacent sleeves 11, so that the two sleeves 11 do not move relatively any more; when the length of the supporting rod 1 needs to be adjusted again, the hoop can be loosened or disassembled, and after the sleeving length is determined, the hoop is fastened again. The sleeving part of two adjacent sleeves 11 can be selected to be provided with two hoops, and the two hoops are respectively positioned on two sides of the sleeving part along the axial direction of the sleeves 11 so as to sufficiently fasten the two sleeves 11.
After the supporting rod 1 is installed and fixed, according to the seat position of the test vehicle and the national standard GB/T18697-2002, the position of the microphone 100 needs to be adjusted in a targeted manner to ensure that the microphone 100 is located at the correct measurement position, and the microphone 100 is connected to the mounting rod 2 by the first clamping mechanism 4. As shown in fig. 3, the first clamping mechanism 4 includes a first clamping member 41 and a second clamping member 42 arranged at an interval, and a clamping rod 43 for connecting the first clamping member 41 and the second clamping member 42, wherein a first clamping portion is arranged on the first clamping member 41 for clamping the microphone 100; the second clamping member 42 is provided with a second clamping portion and a third clamping portion, which are respectively used for clamping the mounting rod 2 and the clamping rod 43, so as to fix the microphone 100 on the mounting rod 2. The optional first clamping portion comprises a first clamping groove 411 arranged on the first clamping piece 41, the first clamping groove 411 penetrates through the first clamping piece 41 along the first direction, the microphone 100 is clamped in the first clamping groove 411 and can move relative to the first clamping piece 41 along the first direction until a preset position in the first direction is reached, the microphone 100 is fastened in the first clamping groove 411 through a first fastening bolt 412, and the microphone 100 is positioned in the first direction. The optional second clamping portion comprises a second clamping groove 421 formed in the second clamping piece 42, the second clamping groove 421 penetrates through the second clamping piece 42 along the second direction, the mounting rod 2 is clamped in the second clamping groove 421, the second clamping piece 42 can move relative to the mounting rod 2 along the second direction, and after the mounting rod reaches a preset position in the second direction, the second clamping piece 42 is fastened with the mounting rod 2 through a second fastening bolt 422, so that the microphone 100 is positioned in the second direction. The third clamping portion capable of being selected comprises a third clamping groove 423 arranged on the second clamping piece 42, the third clamping groove 423 penetrates through the second clamping piece 42 along the third direction, one end of the clamping rod 43 is connected with the first clamping piece 41, the other end of the clamping rod is a free end, the clamping rod 43 is clamped in the third clamping groove 423 and can move relative to the second clamping piece 42 along the third direction, and after the microphone 100 on the first clamping piece 41 reaches a preset position in the third direction, the clamping rod 43 is fixed in the third clamping groove 423 through a third fastening bolt 424, and the microphone 100 is positioned in the third direction. Further, a second clamping portion and a second clamping portion are respectively disposed at two ends of the second clamping member 42 along the first direction. The arrangement of the first clamping mechanism 4 enables the position of the microphone 100 to be adjustable in the first direction, the second direction and the third direction, so as to obtain the most accurate installation position, and simultaneously, after the corresponding fastening bolt is fastened, the stability of the microphone 100 at the corresponding position is ensured. Optionally, the supporting rod 1, the mounting rod 2 and the clamping rod 43 can be cylindrical structures, so that the self weight of the testing device can be reduced while the sliding in the corresponding clamping grooves is facilitated. Further, the first card slot 411, the second card slot 421 and the third card slot 423 are similar in structure, and here, the first card slot 411 is taken as an example to describe in detail, specifically, as shown in fig. 3, the first card slot 411 includes a clamping portion 4111 and a fastening portion 4112 which are communicated with each other, the size of the fastening portion is smaller than that of the clamping portion, and the fastening portion 4112 extends to the free end of the clamping member, in the specific implementation, the clamping member is clamped in the clamping portion 4111 and can move slightly in the clamping portion 4111, and the fastening bolt is screwed into two side walls of the fastening portion 4112 in sequence, so that two side walls of the fastening portion 4112 are close to each other, and further, the clamping member is tightly clamped in the clamping portion 4111.
It can be understood that the first direction, the second direction and the third direction are perpendicular to each other, and may be considered as an X axis, a Y axis and a Z axis in a rectangular coordinate system; of course, the X direction, the Y direction, and the Z direction of the vehicle may be used, and the specific positions of the microphone 100 in the X direction, the Y direction, and the Z direction of the vehicle may be changed by the first clamp mechanism 4.
According to the national standard GB/T18697-2002 for measuring the noise in the automobile, eight microphones 100 are usually required to be arranged in the automobile, and the eight microphones 100 are distributed in an array in the automobile. Therefore, the optional supporting rod 1 extends along the X direction of the automobile, the mounting rod 2 extends along the Y direction of the automobile, and the mounting rod 2 is perpendicular to the supporting rod 1. Further, the installation pole 2 is provided with two, and two installation poles 2 all correspond on every installation pole 2 and set up four microphones 100 along the axis direction interval distribution of installation pole 2 along the axis direction interval setting of bracing piece 1, so that different positions in the car microphone 100 of arrangement in different positions realizes the collection of different position noises. Of course, the number of the mounting rods 2 and the number of the microphones 100 are not limited in the specific implementation, and may be adjusted adaptively according to the measurement environment. Further optionally, in this embodiment, the support rod 1 is disposed at the middle position of the mounting rod 2, at this time, the support rod 1 may be disposed between the driver seat and the passenger seat in the vehicle, so as to fully utilize the space in the vehicle, and complete the arrangement of the microphone 100; certainly in some other embodiments, the support rod 1 and one end of the mounting rod 2 may be fixed, and the support rod 1 is disposed at a position of the vehicle body close to the vehicle door, so that there is no barrier between the driver seat and the passenger seat, and the driving experience is improved.
Further optionally, the mounting rod 2 and the support rod 1 may be connected by a second clamping mechanism 5, and the second clamping mechanism 5 is similar to the first clamping mechanism 4 in structure, so that the positions of the mounting rod 2 in the first direction, the second direction and the third direction relative to the support rod 1 may also be adjusted, thereby achieving the overall adjustment of the microphones 100 on the mounting rod 2, and improving the adjustability and the universality of the noise testing device. In specific implementation, the first clamping part of the second clamping mechanism 5 is used for clamping the supporting rod 1, and the relative position of the mounting rod 2 and the microphone 100 thereon in the first direction of the supporting rod 1 can be adjusted by changing the clamping position; the second clamping part of the second clamping mechanism 5 is used for clamping the mounting rod 2, and the position of the mounting rod 2 and the microphone 100 thereon in the second direction relative to the supporting rod 1 can be adjusted by changing the clamping position; the third clamping part of the second clamping mechanism 5 is used for clamping the clamping rod 43 of the second clamping mechanism 5, and the position of the mounting rod 2 and the microphone 100 thereon in the third direction relative to the supporting rod 1 can be adjusted by changing the clamping position.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. A noise measuring device for an automobile, comprising:
the support rod (1), the both ends of the said support rod (1) along its axial cord are connected with front wind window and back wind window of the car body separately;
the mounting rod (2), the mounting rod (2) is arranged on the supporting rod (1);
the microphone (100) is arranged on the mounting rod (2) through the first clamping mechanism (4).
2. The noise measuring device according to claim 1, characterized in that the support rod (1) is connected with the front windshield and the rear windshield by a suction cup (3); the angle of the sucker (3) relative to the supporting rod (1) is adjustable.
3. The noise measuring device according to claim 1, characterized in that the support bar (1) is a telescopic bar.
4. The noise measuring device according to claim 3, characterized in that the support rod (1) comprises at least two sleeves (11) which are sequentially sleeved, and the sleeved length of two adjacent sleeves (11) is adjustable.
5. The noise measuring device according to claim 4, wherein the supporting rod (1) further comprises a fastening member (12), and the fastening member (12) is sleeved outside the sleeved portion of two adjacent sleeves (11).
6. The noise measurement device according to claim 1, wherein the first clamping mechanism (4) comprises a first clamping member (41) and a second clamping member (42) which are arranged at intervals, and a clamping rod (43) for connecting the first clamping member (41) and the second clamping member (42), a first clamping portion is arranged on the first clamping member (41) and used for clamping the microphone (100), and a second clamping portion and a third clamping portion are arranged on the second clamping member (42) and used for clamping the mounting rod (2) and the clamping rod (43) respectively.
7. The noise measuring device according to claim 6, wherein the first clamping portion comprises a first clamping groove (411) provided on the first clamping member (41), the first clamping groove (411) penetrates through the first clamping member (41) in a first direction, and the microphone (100) is clamped in the first clamping groove (411).
8. The noise measuring device according to claim 6, wherein the second clamping portion comprises a second clamping groove (421) formed in the second clamping member (42), the second clamping groove (421) penetrates through the second clamping member (42) along a second direction, and the mounting rod (2) is clamped in the second clamping groove (421).
9. The noise measuring device according to claim 6, wherein the third clamping portion includes a third clamping groove (423) provided on the second clamping member (42), the third clamping groove (423) penetrates the second clamping member (42) in a third direction, and the clamping rod (43) is clamped in the third clamping groove (423).
10. The noise measuring device according to claim 6, characterized in that the mounting rod (2) is connected to the support rod (1) by a second clamping means (5).
CN201921214201.6U 2019-07-30 2019-07-30 Noise measuring device for automobile Active CN210862903U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921214201.6U CN210862903U (en) 2019-07-30 2019-07-30 Noise measuring device for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921214201.6U CN210862903U (en) 2019-07-30 2019-07-30 Noise measuring device for automobile

Publications (1)

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CN210862903U true CN210862903U (en) 2020-06-26

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CN201921214201.6U Active CN210862903U (en) 2019-07-30 2019-07-30 Noise measuring device for automobile

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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