Microphone fixing device for in-vehicle noise test

Abstract

The invention provides a microphone fixing device for in-vehicle noise testing, which comprises a head-mounted part, a supporting part is arranged on the head-mounted part, and a mounting part for mounting a microphone is arranged on the supporting part. The microphone clamp solves the problems that a traditional microphone clamp for in-vehicle noise testing is likely to loosen in the use process, the clamp structure is relatively complex, the machining precision requirement is high, and use is inconvenient.

Description

Technical Field

[0001] The invention relates to the technical field of automobile manufacturing, and in particular to a microphone fixing device for in-vehicle noise testing. Background Art

[0002] With the advancement of science and technology and the improvement of living standards, people pay more attention to the NVH performance of vehicles, and noise has become an important indicator of automobile noise. The GB / T 18697-2002 standard requires that the vertical coordinate of the noise test microphone is above the intersection of the seat surface and the backrest (70±5cm), and the horizontal coordinate is to the right of the seat center plane (20±2cm). In actual noise testing projects, the microphone is generally fixed with materials such as cable ties and tapes, but this fixing method may cause the microphone to loosen or slip during the movement of the car, and the fixing operation is also more troublesome, resulting in defects such as low test data accuracy and poor consistency of repeated tests, making it difficult to ensure the accuracy of the final data analysis. Therefore, some manufacturers have specially customized fixtures for this purpose, which can be detachably connected to the car seat slide rail or installed in the gap between the seat cushion and the backrest. However, these fixtures may become loose during use, the fixture structure is relatively complex, the processing accuracy requirements are high, and it is not convenient to use. Therefore, it is necessary to invent a new microphone fixing device for in-car noise testing. Summary of the invention

[0003] The purpose of the present invention is to provide a microphone fixing device for in-vehicle noise testing, so as to solve the problems that a conventional microphone clamp for in-vehicle noise testing may become loose during use, the clamp structure is relatively complex, the processing precision requirement is high, and it is inconvenient to use.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A microphone fixing device for in-vehicle noise testing comprises a head-mounted component, a supporting component is arranged on the head-mounted component, and a mounting component for mounting a microphone is arranged on the supporting component.

[0006] Furthermore, the support member is fixedly arranged on a boss on a side of the headgear.

[0007] Furthermore, the headgear is a safety helmet.

[0008] Furthermore, the support member is a long plate-like structure.

[0009] Furthermore, a connecting plate is fixedly provided on one side of the mounting member, and the connecting plate is connected to the supporting member.

[0010] Furthermore, the mounting piece is a clip.

[0011] Furthermore, the head of the clip is downward and arranged close to the human ear.

[0012] Furthermore, the connecting plate and the supporting member are detachably connected via bolts and nuts.

[0013] Furthermore, a mounting pad is provided between the connecting plate and the supporting member, and the bolts pass through the supporting member, the mounting pad, and the connecting plate in sequence and are connected by nuts.

[0014] Furthermore, the mounting pad is a rubber pad.

[0015] Beneficial effects of the present invention: The present invention provides a microphone fixing device for automobile interior noise testing with strong applicability, which clamps the microphone by arranging a clip on the safety helmet. The device has strong stability and is easy to use during the noise testing process. The device is simple to manufacture, has strong applicability and low production cost.

[0016] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a front view of a microphone fixing device for in-vehicle noise testing.

[0018] Figure 2 The figure is a side view of a microphone fixing device for in-vehicle noise testing according to the present invention. DETAILED DESCRIPTION

[0019] like Figure 1 to Figure 2 A microphone fixing device for in-vehicle noise testing is shown, comprising a head-mounted component 1, on which a support component 2 is arranged, and on which a mounting component 3 for mounting a microphone is arranged.

[0020] Preferably, in combination with the above solution, in order to facilitate the fixed installation of the support member 2, the support member 2 is fixedly arranged on the boss on the side of the headgear 1.

[0021] Preferably, in combination with the above solution, the headgear 1 is a safety helmet, which is a common engineering safety helmet. The safety helmet can adapt to the required working scene and is also convenient for installing the microphone on the helmet body. A mounting hole is provided in the side boss of the safety helmet, and the support member 2 is inserted into the mounting hole and installed by interference fit.

[0022] Preferably, in combination with the above solution, in order to facilitate the fixation of the clip and simplify the parts structure, the support member 2 is a long plate-like structure.

[0023] Preferably, in combination with the above solution, in order to facilitate installation and fixation with the support member 2 , a connecting plate 31 is fixedly provided on one side of the mounting member 3 , and the connecting plate 31 is connected to the support member 2 .

[0024] Preferably, in combination with the above solution, in order to facilitate the clamping of the microphone, the mounting member 3 is a clip.

[0025] Preferably, in combination with the above solution, in order to ensure the accuracy of the noise test and simulate the scene where the noise is transmitted to the human ear, the head of the clip is placed downward and close to the human ear.

[0026] Preferably, in combination with the above solution, in order to facilitate installation and disassembly for maintenance, the connecting plate 31 is detachably connected to the supporting member 2 via bolts 4 and nuts 7 .

[0027] Preferably, in combination with the above scheme, in order to facilitate the adjustment of the installation distance and ensure a more secure connection, a mounting pad 5 is provided between the connecting plate 31 and the support member 2, and the bolt 5 passes through the support member 2, the mounting pad 5, the connecting plate 31 in sequence and is connected by a nut 7.

[0028] Preferably, in combination with the above solution, in order to ensure that the connection of the clip is more stable and firm and the horizontal position of the microphone can be adjusted, the mounting pad 5 is a rubber pad.

[0029] In the description of the present invention, it is necessary to understand that terms such as "upper", "lower", "front", "back", "left", "right", "bottom", "inside", "outside", "one end", "one side", "two ends", "both sides", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions without improvement, they all fall within the protection scope of the present invention.

Claims

1. A microphone fixing device for in-vehicle noise testing, characterized in that: The invention comprises a head-mounted component (1), wherein a supporting component (2) is arranged on the head-mounted component (1), and a mounting component (3) for mounting a microphone is arranged on the supporting component (2).

2. The microphone fixing device for in-vehicle noise testing according to claim 1, characterized in that: The support member (2) is fixedly arranged on a boss on the side of the headgear (1).

3. The microphone fixing device for in-vehicle noise testing according to claim 1 or 2, characterized in that: The headwear (1) is a safety helmet.

4. The microphone fixing device for in-vehicle noise testing according to claim 1 or 2, characterized in that: The support member (2) is a long plate-like structure.

5. The microphone fixing device for in-vehicle noise testing according to claim 1, characterized in that: A connecting plate (31) is fixedly provided on one side of the mounting member (3), and the connecting plate (31) is connected to the supporting member (2).

6. The microphone fixing device for in-vehicle noise testing according to claim 1 or 5, characterized in that: The mounting member (3) is a clip.

7. The microphone fixing device for in-vehicle noise testing according to claim 6, characterized in that: The head of the clip faces downward and is arranged close to the human ear.

8. The microphone fixing device for in-vehicle noise testing according to claim 5, characterized in that: The connecting plate (31) and the supporting member (2) are detachably connected via bolts (4) and nuts (7).

9. The microphone fixing device for in-vehicle noise testing according to claim 8, characterized in that: A mounting pad (5) is provided between the connecting plate (31) and the supporting member (2), and the bolt (5) passes through the supporting member (2), the mounting pad (5), and the connecting plate (31) in sequence and is connected via a nut (7).

10. The microphone fixing device for in-vehicle noise testing according to claim 9, characterized in that: The installation pad (5) is a rubber pad.

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