CN214952157U

CN214952157U - A quick location microphone device for experimental usefulness of car PBNR

Info

Publication number: CN214952157U
Application number: CN202121103945.8U
Authority: CN
Inventors: 林传念; 王中辉
Original assignee: Southeast Fujian Automobile Industry Co Ltd
Current assignee: Southeast Fujian Automobile Industry Co Ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-11-30
Anticipated expiration: 2031-05-21

Abstract

The utility model relates to a quick location microphone device for experimental usefulness of car PBNR, it includes base, bracing piece one, bracing piece two, bracing piece one is established on the base, the bottom and the base fixed connection of bracing piece one, two one ends of bracing piece are connected with bracing piece one, are equipped with microphone installation department, its characterized in that on the two cantilevers of bracing piece: one end of the support rod II is provided with a ring sleeve which is rotatably sleeved on the support rod I, and a fixing device is arranged at the joint of the ring sleeve at one end of the support rod II and the support rod I. The utility model discloses can reach required test position through quick detach subassembly and random regulation bracing piece two according to the testee height and spatial position.

Description

A quick location microphone device for experimental usefulness of car PBNR

Technical Field

The utility model relates to a car NVH test field, concretely relates to a quick location microphone device that is used for car PBNR experiment to use.

Background

The noise of an automobile engine becomes an important index for evaluating the performance of the engine, and enterprise standards need to evaluate and test the characteristics of the acoustic system of each sub-component of each system in the whole automobile state so as to evaluate whether the acoustic performance of the acoustic system reaches the standard or not and judge the current level. This acoustic characteristic test is generally carried out at half noise elimination, and the quick location microphone device of current microphone is disposable article mostly, and the manual preparation in field is usually, extravagant material, consumes the laboratory resource of half noise elimination room to a certain extent, is unfavorable for whole car development cost's control.

The utility model discloses a but current utility model patent also provides repeatedly usable fixes a position microphone device fast, and its patent publication number is CN207766458U, a microphone support for the microphone of vehicle engine noise is measured in the installation, and microphone support includes: a base; the height adjusting rod is arranged on the base, one end of the height adjusting rod is connected with the base, and an adjusting groove extending along the axial direction of the height adjusting rod is formed in the height adjusting rod; the bracing piece, the one end of bracing piece is equipped with the installation department, and the installation department is established movably on altitude mixture control pole along the axial of adjustment tank, and the other end of bracing piece is equipped with joint portion in order to install the microphone. The height of the microphone in the vertical direction can be changed only through the height adjusting rod, and the arm length of the supporting rod in the horizontal direction cannot be changed. The purpose of the required test position can not be achieved by randomly adjusting the microphone.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a quick location microphone device for experimental usefulness of car PBNR possesses advantages such as the device quality is light, make things convenient for the dismouting, has solved the microphone and has adjusted the problem that can reach required test position at will.

The utility model discloses a quick location microphone device for experimental usefulness of car PBNR, including base, bracing piece one, bracing piece two, bracing piece one is established on the base, the bottom and the base fixed connection of bracing piece one, two one ends of bracing piece are connected with bracing piece one, and two at least one ends of bracing piece are equipped with microphone installation department, its characterized in that: one end of the support rod II is provided with a ring sleeve which is rotatably sleeved on the support rod I, and a fixing device is arranged at the joint of the ring sleeve at one end of the support rod II and the support rod I.

Furthermore, the fixing device is that a ring sleeve at one end of the two support rods is fixed on the first support rod through a screw, or the ring sleeve at one end of the two support rods is provided with an opening, the opening ends respectively extend outwards to form locking surfaces, and the two locking surfaces are locked on the first support rod through a bolt connection locking or eccentric linkage locking structure.

Further, the first support rod is less than or equal to 0.5 m in height, the first support rod is a hollow tube, the length of the second support rod cantilever is less than or equal to 0.3 m, the second support rod cantilever is a section bar, and the first support rod and the second support rod are formed by a light aluminum alloy material or a plastic material.

Furthermore, the microphone mounting part on the two cantilevers of the supporting rod comprises a base part and a microphone fixing part, and the base part is provided with a plurality of microphone fixing holes.

Further, the basal portion is by panel stamping forming or cast aluminium shaping or injection moulding, includes two opposite faces at least, and the interval sets up the arc on two opposite faces, forms the embracing and closes the microphone fixed orifices, the microphone fixed part includes the bolt, and two opposite faces of bolt through connection, and establish between two microphone fixed orifices the bolt through locking two opposite faces, it is fixed with microphone locking.

Further, the plurality of microphone fixing holes of the base portion of the microphone mounting portion are different in diameter.

Furthermore, a rubber ring is arranged in the microphone fixing hole.

Furthermore, the base is a V-shaped board, and the V-shaped board includes pointed end portion and opening, and pointed end portion and opening both ends below respectively are equipped with 1 heel brace, and a bracing piece bottom is connected in pointed end portion top.

Furthermore, a weight reduction groove is formed in the V-shaped plate of the base, and balance weights are arranged at two ends of the opening part of the V-shaped plate.

Furthermore, the base is also provided with a support which is arranged above the tip part of the V-shaped plate, and the support is rotatably and fixedly connected with the first support rod.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. through the connection mode of the first supporting rod and the second supporting rod, the required testing position can be reached through the quick-release assembly and the optional adjustment of the second supporting rod according to the height and the space position of a tested object.

2. The first supporting rod and the second supporting rod are formed by stamping and forming light aluminum alloy materials, the rigidity of the light aluminum alloy is high, the whole support is stable and is not prone to shaking, the influence of shaking on the vibration of the microphone diaphragm is reduced, and the accuracy of test data is improved.

3. The base of the microphone mounting part is provided with a plurality of microphone fixing holes with different diameters, and microphones with different sizes can be mounted.

4. The rubber ring can reduce the influence of vibration on noise, and the accuracy of test data is improved.

5. The counterweight of the base maintains the center of gravity of the device constant.

6. The base is provided with a support which can adjust the angle of the supporting rod.

7. The first supporting rod is a hollow metal pipe, and the base is provided with a weight reduction groove, so that the mass of the whole device is greatly reduced, and the device is convenient to disassemble and assemble.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic perspective view of a first embodiment of the present invention;

fig. 2 is a front view of a first embodiment of the present invention;

fig. 3 is a front view of a second embodiment of the present invention.

In the figure: 1. a base; 11. a V-shaped plate; 111. a weight reduction groove; 12. a foot support; 13. a support; 131. a third bolt; 2. a first supporting rod; 3. a second supporting rod; 31. sleeving a ring; 32. a microphone mounting section; 321. a base; 322. a microphone fixing hole; 323. a locking hole 324, a bolt I; 33. a fixing device; 331. a locking surface; 332. a second bolt; 4. A counterweight.

Detailed Description

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It should be understood, however, that these physical details should not be taken to limit the invention. That is, in some embodiments of the invention, these physical details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

Referring to fig. 1-2, in an embodiment, a fast positioning microphone device for a PBNR test of an automobile includes a base 1, a first support rod 2, and a second support rod 3, where the first support rod 2 is disposed on the base 1, the bottom of the first support rod 2 is fixedly connected to the base 1, one end of the second support rod 3 is connected to the first support rod 2, and at least one end of the second support rod 3 is disposed with a microphone mounting portion 32, and is characterized in that: one end of the second support rod 3 is provided with a ring sleeve 31 which is rotatably sleeved on the first support rod 2, and a fixing device 33 is further arranged at the joint of the ring sleeve 31 at one end of the second support rod 3 and the first support rod 2.

The fixing device 33 is provided with an opening for the loop sleeve 31 at one end of the second support rod 3, the opening ends respectively extend outwards to form locking surfaces 331, and the two locking surfaces 331 are connected and locked through a second bolt 332.

The first support rod 2 and the second support rod 3 are formed by light aluminum alloy materials. Of course, plastic materials may be used. The height of the first support rod is 0.5 meter, and the length of the second support rod is 0.3 meter. The first support rod 2 is a hollow pipe, and the second support rod 3 is a cantilever section.

The microphone mounting part 32 on the cantilever of the second support rod 3 comprises a base part 321 and a microphone fixing part, and the base part 321 is provided with a microphone fixing hole 322.

The basal portion 321 has by panel stamping forming or cast aluminium shaping or injection moulding, includes two opposite faces at least, and the interval sets up the arc on two opposite faces, forms embracing and closes microphone fixed orifices 322, the microphone fixed part includes bolt 324, and two opposite faces of bolt 324 through connection, and establish bolt 324 between two microphone fixed orifices 322 through locking two opposite faces, it is fixed with microphone locking.

The plurality of microphone fixing holes 322 of the base 321 of the microphone mounting portion have different diameters.

And a rubber ring is arranged in the microphone fixing hole.

The base is a V-arrangement board 11, and V-arrangement board 11 includes pointed end portion and opening, and pointed end portion and opening both ends below respectively are equipped with 1

heel brace

12, and 2 bottoms of bracing piece are connected in pointed end portion top.

The V-shaped plate 11 of the base is provided with a weight reduction groove 111, and the two ends of the opening part of the V-shaped plate can be placed with a balance weight 4 to keep the center of gravity of the base unchanged.

In the first embodiment of the present invention, the fixing device 33 can also be locked on the first support rod 2 by an eccentric linkage locking structure.

Referring to fig. 3, in the second embodiment of the present invention, the structure is substantially the same as that of the first embodiment of the present invention except that a support is different from the base connection structure.

In the second embodiment of the present invention, the base 1 is further provided with a support 13, the support 13 is disposed above the tip portion of the V-shaped plate 11, the support 13 and the first support rod 2 are fixedly connected by a rotating shaft, and the third support rod is fixedly locked by the third bolt 131.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a quick location microphone device for experimental usefulness of car PBNR, includes base, bracing piece one, bracing piece two, bracing piece one is established on the base, the bottom and the base fixed connection of bracing piece one, two one ends of bracing piece are connected with bracing piece one, are equipped with microphone installation department on the two cantilevers of bracing piece, its characterized in that: one end of the support rod II is provided with a ring sleeve which is rotatably sleeved on the support rod I, and a fixing device is arranged at the joint of the ring sleeve at one end of the support rod II and the support rod I.

2. The fast positioning microphone device for the PBNR test of the automobile according to claim 1, wherein: the fixing device is characterized in that a ring sleeve at one end of the two support rods is fixed on the first support rod through a screw, or the ring sleeve at one end of the two support rods is provided with an opening, the opening ends respectively extend outwards to form locking surfaces, and the two locking surfaces are locked on the first support rod through a bolt connection locking structure or an eccentric linkage locking structure.

3. The fast positioning microphone device for the PBNR test of the automobile according to claim 1, wherein: the first support rod is less than or equal to 0.5 m in height, the first support rod is a hollow tube, the length of the second support rod cantilever is less than or equal to 0.3 m, the second support rod cantilever is a section bar, and the first support rod and the second support rod are formed by a light aluminum alloy material or a plastic material.

4. The fast positioning microphone device for the PBNR test of the automobile according to claim 1, wherein: the microphone installation part on the two cantilevers of the supporting rod comprises a base part and a microphone fixing part, and the base part is provided with a plurality of microphone fixing holes.

5. The fast positioning microphone device for PBNR test of the automobile as claimed in claim 4, wherein: the basal portion is by panel stamping forming or cast aluminium shaping or injection moulding, includes two opposite faces at least, and the interval sets up the arc on two opposite faces, forms the embracing and closes the microphone fixed orifices, the microphone fixed part includes the bolt, and two opposite faces of bolt through connection, and establish the bolt between two microphone fixed orifices through two opposite faces of locking, it is fixed with microphone locking.

6. The fast positioning microphone device for PBNR test of the automobile as claimed in claim 4, wherein: the plurality of microphone fixing holes at the base of the microphone mounting part are of different diameters.

7. The fast positioning microphone device for PBNR test of the automobile as claimed in claim 4, wherein: and a rubber ring is arranged in the microphone fixing hole.

8. The fast positioning microphone device for the PBNR test of the automobile according to claim 1, wherein: the base is a V-shaped plate, and the V-shaped plate includes pointed end portion and opening, and pointed end portion and opening both ends below respectively are equipped with 1 heel brace, and the tip portion top is connected to a bracing piece bottom.

9. The fast positioning microphone device for the PBNR test of the automobile as claimed in claim 8, wherein: the V-shaped plate of the base is provided with a weight reduction groove, and balancing weights are arranged at two ends of the opening part of the V-shaped plate.

10. The fast positioning microphone device for the PBNR test of the automobile as claimed in claim 8, wherein: the base is further provided with a support which is arranged above the pointed end part of the V-shaped plate, and the support is rotatably and fixedly connected with the first support rod.