Fixed bracket and in-vehicle noise test device

Abstract

The present application relates to a fixing bracket and an in-vehicle noise testing device. The fixing bracket is used to install a sound collecting device on the seat back of a vehicle to test the noise at the seat of the vehicle. The fixing bracket includes a fixing structure, a mounting structure and a position adjustment assembly. The fixing structure is installed on the seat back of the vehicle, and the mounting structure is used for installation of the sound collecting device. The position adjustment assembly is connected to the fixing structure and the mounting structure respectively, and the position adjustment assembly is constructed to be able to adjust the position of the mounting structure relative to the fixed structure along a first direction, a second direction and a third direction. The fixing bracket proposed in the present application can adjust the position of the mounting structure relative to the fixed structure through the position adjustment assembly, thereby adjusting the sound collecting device to the desired test position, so that the sound collecting device can accurately collect the noise at the test position, making the test more accurate.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle noise, and in particular to a fixing bracket and an in-vehicle noise testing device. Background Art

[0002] Noise inside a vehicle can affect the riding experience of both passengers and drivers. Therefore, during vehicle production, binaural noise testing is required to measure seat noise. In actual testing, sound collection devices are typically installed using adhesive or rope. This makes it difficult to adjust the installation position, resulting in the device only collecting noise from a single location, resulting in limited testing results. Summary of the Invention

[0003] Based on this, it is necessary to provide a fixed bracket and an in-vehicle noise testing device to address the problem that the installation position of the sound collecting device in the traditional in-vehicle noise testing device is difficult to adjust, resulting in the sound collecting device being able to only collect noise at a single position and the test effect being relatively general.

[0004] According to a first aspect of the present application, a fixing bracket is provided, which is used to mount a sound collecting device on a seat back of a vehicle to test the noise at the seat of the vehicle. The fixing bracket includes:

[0005] a fixing structure mounted on a seat back of the vehicle;

[0006] A mounting structure for mounting the sound collecting device; and

[0007] a position adjustment assembly connected to the fixed structure and the mounting structure, respectively, the position adjustment assembly being configured to adjust the position of the mounting structure relative to the fixed structure along a first direction, a second direction, and a third direction;

[0008] The first direction, the second direction and the third direction are arranged to intersect each other.

[0009] In one embodiment, the position adjustment assembly includes a first adjustment structure and a second adjustment structure, the first adjustment structure is movably mounted on the fixed structure along the first direction, the second adjustment structure is movably mounted on the first adjustment structure along the second direction, and the mounting structure is movably mounted on the second adjustment structure along the third direction.

[0010] In one embodiment, the mounting structure is rotatably mounted on the second adjustment structure around an axis extending along the third direction.

[0011] In one embodiment, the first adjustment structure includes a first mounting member extending along the first direction and movably mounted on the fixed structure along the first direction; the first mounting member is provided with a plurality of first scale lines evenly spaced along the first direction;

[0012] The second adjustment structure includes a second mounting member extending along the second direction and movably mounted on the first mounting member along the second direction; the second mounting member is provided with a plurality of second scale lines evenly spaced along the second direction.

[0013] In one embodiment, the fixed bracket also includes an angle adjustment structure, which is respectively connected to the fixed structure and the position adjustment component. The angle adjustment structure is constructed to be able to adjust the position of the position adjustment component relative to the fixed structure to adjust the relative direction between the fixed structure and the position adjustment component.

[0014] In one embodiment, the angle adjustment structure includes a mounting block and a mounting ball, and a spherical groove connected to the mounting ball by a ball joint is formed on the side of the mounting block facing the mounting ball;

[0015] One of the mounting block and the mounting ball is mounted on the fixing structure, and the other one is mounted on the position adjustment assembly.

[0016] In one embodiment, the mounting block is further provided with a first screw hole connected to the spherical groove; the angle adjustment structure also includes a first screw rod threadedly connected to the first screw hole, and the first screw rod is constructed to be able to extend from the first screw hole into the spherical groove to tighten the mounting ball.

[0017] In one embodiment, the fixing structure includes a mounting frame and a second screw rod, the mounting frame is provided with a mounting slot for the seat back of the vehicle to extend into, and the mounting frame is also provided with a second screw hole connected to the mounting slot; the second screw rod is screwed into the second screw hole, and the second screw rod is constructed to be able to extend into the mounting slot from the second screw hole to press against the seat back of the vehicle.

[0018] In one embodiment, the second threaded hole is provided on a side of the mounting slot facing away from the mounting structure.

[0019] According to a second aspect of the present application, a vehicle interior noise testing device is also proposed, comprising:

[0020] Two fixing brackets as described above, the two fixing brackets being provided opposite to each other on both sides of the seat back of the vehicle along the width direction of the vehicle; and

[0021] Two sound collecting devices are provided in one-to-one correspondence with the two fixing brackets, and each sound collecting device is installed on the corresponding installation structure.

[0022] In the technical solution of this application, a fixed bracket is mounted on a vehicle seat back via a fixed structure, a sound collection device is then mounted via a mounting structure, and finally, a position adjustment assembly is used to adjust the mounting structure relative to the fixed structure, thereby adjusting the sound collection device to a desired test position, allowing the sound collection device to accurately collect noise at the test position. Specifically, the position adjustment assembly can adjust the mounting structure along a first direction, a second direction, and a third direction, thereby allowing the sound collection device to be freely adjusted. This also allows the sound collection device to collect the desired sound when used with different types of seats and vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of an embodiment of the fixing bracket proposed in this application.

[0024] Figure 2 for Figure 1 Schematic diagram of the structure of the fixed bracket from another angle.

[0025] Description of Figure Numbers:

[0026] Label name Label name 100 Fixed bracket 1 Fixed structure 11 Mounting bracket 111 Installation slot 12 Second screw hole 13 Second screw 2 Installation structure 3 Position adjustment components 31 First adjustment structure 31a First mounting piece 311 First scale line 32 Second adjustment structure 32a Second mounting piece 4 Angle adjustment structure 41 Mounting Block 42 Mounting ball 43 First screw 200 Sound collection device X First direction Y Second direction Z The third direction \ \ DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does 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 therefore cannot be understood as a limitation on this application.

[0029] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0030] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0033] Noise inside a vehicle can affect the riding experience of both passengers and drivers. Therefore, during vehicle production, binaural noise testing is required to measure seat noise. In actual testing, sound collection devices are typically installed using adhesive or rope. This makes it difficult to adjust the installation position, resulting in the device only collecting noise from a single location, resulting in limited testing results.

[0034] Through research, the researchers involved in this application discovered that when testing vehicle interior noise, the sound collection device often needs to be adjusted to collect multiple sets of data, which are then combined to comprehensively analyze the interior noise. However, when the sound collection device is attached to the vehicle seat via gluing, the device must be reinstalled to adjust its position. Similarly, when the sound collection device is attached to the vehicle seat via strapping, it also needs to be reinstalled to adjust its position. Therefore, in-vehicle noise testing equipment requires alternative methods for mounting the sound collection device to allow for adjustment.

[0035] In view of this, the present application proposes a fixed bracket, which aims to solve the problem that the installation position of the sound collection device in the traditional in-vehicle noise testing device is difficult to adjust, resulting in the sound collection device being able to only collect noise at a single position and the test effect being relatively general. Figures 1 to 2 This is a structural schematic diagram of an embodiment of the fixing bracket proposed in this application.

[0036] See also Figures 1 to 2 The fixing bracket 100 proposed in this application is used to mount a sound collection device 200 on a vehicle seat back to test seat noise. The fixing bracket 100 includes a fixing structure 1, a mounting structure 2, and a position adjustment assembly 3. The fixing structure 1 is mounted on the vehicle seat back, and the mounting structure 2 is used to mount the sound collection device 200. The position adjustment assembly 3 is connected to the fixing structure 1 and the mounting structure 2, respectively. The position adjustment assembly 3 is configured to adjust the position of the mounting structure 2 relative to the fixing structure 1 along a first direction X, a second direction Y, and a third direction Z. The first direction X, the second direction Y, and the third direction Z are arranged to intersect each other.

[0037] In the present application, the first direction X, the second direction Y, and the third direction Z are three relative directions, and are three directions that intersect with each other.

[0038] In the technical solution of this application, a fixing bracket 100 is mounted on the vehicle seat back via a fixing structure 1. A sound collection device 200 is then mounted via a mounting structure 2. Finally, a position adjustment assembly 3 is used to adjust the position of the mounting structure 2 relative to the fixing structure 1, thereby adjusting the sound collection device 200 to the desired test position. This allows the sound collection device 200 to accurately collect noise at the test position. Specifically, the position adjustment assembly 3 can adjust the position of the mounting structure 2 along a first direction X, a second direction Y, and a third direction Z, allowing the sound collection device 200 to be freely adjusted. This also allows the sound collection device 200 to collect the desired sound when used with different types of seats and vehicles.

[0039] In some embodiments, the position adjustment component 3 includes a first adjustment structure 31 and a second adjustment structure 32, the first adjustment structure 31 is movably installed on the fixed structure 1 along the first direction X, the second adjustment structure 32 is movably installed on the first adjustment structure 31 along the second direction Y, and the mounting structure 2 is movably installed on the second adjustment structure 32 along the third direction Z.

[0040] In actual use, when the sound collection device 200 needs to be positioned in a first direction X, the position adjustment assembly 3 can adjust the position of the second adjustment structure 32 along the first direction X via the first adjustment structure 31, thereby simultaneously adjusting the position of the sound collection device 200 in the first direction X. When the sound collection device 200 needs to be positioned in a second direction Y, the position adjustment assembly 3 can adjust the position of the sound collection device 200 along the second direction Y via the second adjustment structure 32. When the sound collection device 200 needs to be positioned in a third direction Z, the mounting structure 2 can move directly on the second adjustment structure 32 along the third direction Z. Therefore, the position adjustment assembly 3 can adjust the position of the sound collection device 200 in the first direction X, the second direction Y, and the third direction Z, allowing the sound collection device 200 to collect noise from different locations. This allows the in-vehicle noise test device to obtain multiple sets of data, resulting in more accurate testing results.

[0041] The sound collection device 200 typically has a sound collection side, such as a microphone that primarily collects sound from one side and cannot collect sound from the other. Therefore, in practical applications, the sound collection device 200 needs to be oriented so that the collection side of the sound collection device 200 faces the test location. Therefore, in some embodiments, the mounting structure 2 is rotatably mounted to the second adjustment structure 32 about an axis extending along the third direction Z. This rotation of the mounting structure 2 allows the sound collection device 200 to be adjusted so that the collection side of the sound collection device 200 faces the test device.

[0042] In some embodiments, the first adjustment structure 31 includes a first mounting member 31a extending along a first direction X and movably mounted to the fixed structure 1 along the first direction X. The first mounting member 31a is provided with a plurality of first scale lines 311 evenly spaced along the first direction X. The second adjustment structure 32 includes a second mounting member 32a extending along a second direction Y and movably mounted to the first mounting member 31a along the second direction Y. The second mounting member 32a is provided with a plurality of second scale lines evenly spaced along the second direction Y.

[0043] The sound collection device 200 needs to collect sound at the test location. Therefore, if the installation position of the sound collection device 200 deviates, the sound collected by the sound collection device 200 may be affected, resulting in inaccurate test results. Therefore, in actual application, the first adjustment mechanism can calibrate the movable distance of the sound collection device 200 in the first direction X using the first scale line 311 on the first mounting member 31a, and the second adjustment mechanism can calibrate the movable distance of the sound collection device 200 in the second direction Y using the second scale line on the second mounting member 32a. This allows for more precise position adjustment of the sound collection device 200 and more accurate test results.

[0044] During actual installation of the fixed bracket 100, the mounting structure 2 or the position adjustment assembly 3 may be restricted by the vehicle body, making installation difficult. Therefore, in some embodiments, the fixed bracket 100 further includes an angle adjustment structure 4, which is connected to the fixed structure 1 and the position adjustment assembly 3, respectively. The angle adjustment structure 4 is configured to adjust the position of the position adjustment assembly 3 relative to the fixed structure 1, thereby adjusting the relative orientation between the fixed structure 1 and the position adjustment assembly 3.

[0045] In actual application, the fixing bracket 100 can rotate the position adjustment component 3 relative to the fixed structure 1 through the angle adjustment structure 4, so that the position adjustment component 3 can avoid the vehicle body and avoid being restricted by the vehicle body, so that the fixing bracket 100 can be installed smoothly.

[0046] In some embodiments, the angle adjustment structure 4 includes a mounting block 41 and a mounting ball 42. The mounting block 41 has a spherical slot on one side facing the mounting ball 42, which is connected to the mounting ball 42 by a spherical hinge. One of the mounting block 41 and the mounting ball 42 is mounted on the fixed structure 1, and the other is mounted on the position adjustment assembly 3.

[0047] Specifically, the mounting ball 42 is connected to the spherical slot by a ball joint, allowing the mounting ball 42 to rotate relative to the spherical slot. One of the mounting block 41 and the mounting ball 42 is mounted to the fixed structure 1, while the other is mounted to the position adjustment assembly 3. This allows the position adjustment assembly 3 to rotate relative to the fixed structure 1, allowing the position adjustment assembly 3 to avoid being restricted by the vehicle body, allowing the fixing bracket 100 to be installed smoothly.

[0048] In some embodiments, the mounting block 41 is further provided with a first screw hole connected to the spherical groove, and the angle adjustment structure 4 also includes a first screw rod 43 screwed to the first screw hole. The first screw rod 43 is constructed to be able to extend from the first screw hole into the spherical groove to tighten the mounting ball 42.

[0049] The first screw rod 43 can be inserted into the first screw hole and screwed into the first screw hole. By rotating the first screw rod 43, the first screw rod 43 can be extended from the first screw hole into the spherical groove, thereby pressing against the mounting ball 42, thereby fixing the mounting ball 42 in the spherical groove. Therefore, in actual use, when the position adjustment assembly 3 is moved to the appropriate installation position, the operator can press against the mounting ball 42 with the first screw rod 43, thereby fixing the position adjustment assembly 3 in the current position, so that the position adjustment assembly 3 can be stably installed.

[0050] In some embodiments, the fixing structure 1 includes a mounting bracket 11 and a second screw 13. The mounting bracket 11 defines a mounting slot 111 for inserting a vehicle seat back. The mounting bracket 11 also defines a second screw hole 12 that communicates with the mounting slot 111. The second screw 13 is threadedly engaged with the second screw hole 12 and is configured to extend from the second screw hole 12 into the mounting slot 111 to press against the vehicle seat back.

[0051] During installation, the installer brings the mounting bracket 11 close to the vehicle's seat back and inserts the vehicle's seat back into the mounting slot 111. The two sidewalls of the mounting slot 111 are now positioned opposite the vehicle's seat back. A second screw hole 12 is defined in one of the two sidewalls of the mounting slot 111. When the second screw 13 is inserted into and threadedly engaged with the second screw hole 12 and inserted into the mounting slot 111 from the second screw hole 12, the second screw 13 presses against the vehicle's seat back, completing the installation.

[0052] The mounting structure 2 is mounted with a sound collection device 200, which needs to be positioned appropriately to collect sound at the test location. Therefore, in practical applications, the second screw 13 should be positioned away from the mounting structure 2 as much as possible to ensure that the sound collection device 200 can be installed without any restrictions and in the appropriate location. Therefore, in some embodiments, the second threaded hole is located on the side of the mounting slot 111 facing away from the mounting structure 2, thereby positioning the second screw 13 away from the sound collection device 200 and preventing any interference with the device.

[0053] This application also provides a vehicle interior noise testing device. The device includes two fixing brackets 100 as described in any of the above embodiments. The two fixing brackets 100 are positioned opposite each other along the width of the vehicle, on either side of the vehicle seat backrest. Two sound collection devices 200 are provided in a one-to-one correspondence with the two fixing brackets 100, and each sound collection device 200 is mounted on a corresponding mounting structure 2.

[0054] The in-vehicle noise test device utilizes two mounting brackets 100 to mount two sound collection devices 200. These brackets 100 allow the two sound collection devices 200 to be adjusted and mounted to the desired test positions, resulting in more accurate test results. The two sound collection devices 200 can collect sound from two locations, respectively. The in-vehicle noise test device uses these two sound collection devices 200 to capture sound at both ears of a seated passenger. This allows the test results to more accurately reflect the passenger's experience, further improving test accuracy.

[0055] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A fixing bracket for mounting a sound collecting device on a seat back of a vehicle to test the noise at the seat of the vehicle, characterized in that: The fixing bracket includes: a fixing structure mounted on a seat back of the vehicle; A mounting structure for mounting the sound collecting device; A position adjustment assembly comprising a first adjustment structure and a second adjustment structure, wherein the first adjustment structure comprises a first mounting member extending along a first direction and movably mounted to the fixed structure along the first direction, the first mounting member being provided with a plurality of first scale lines evenly spaced along the first direction, the second adjustment structure comprises a second mounting member extending along a second direction and movably mounted to the first mounting member along the second direction, the second mounting member being provided with a plurality of second scale lines evenly spaced along the second direction, and the mounting structure being movably mounted to the second mounting member along a third direction; the first direction, the second direction, and the third direction being intersecting in pairs; and The angle adjustment structure includes a mounting block and a mounting ball. The mounting block is provided with a spherical groove connected to the mounting ball on the side facing the mounting ball. One of the mounting block and the mounting ball is installed on the fixed structure, and the other is installed on the position adjustment component so that the position adjustment component can rotate relative to the fixed structure.

2. The fixing bracket according to claim 1, characterized in that: The mounting structure is rotatably mounted on the second adjustment structure around an axis extending along the third direction.

3. The fixing bracket according to claim 1, characterized in that: The mounting block is also provided with a first screw hole connected to the spherical groove; the angle adjustment structure also includes a first screw rod threadedly connected to the first screw hole, and the first screw rod is constructed to be able to extend from the first screw hole into the spherical groove to tighten the mounting ball.

4. The fixing bracket according to claim 1, characterized in that: The fixing structure includes a mounting frame and a second screw rod. The mounting frame is provided with a mounting slot for the seat back of the vehicle to extend into. The mounting frame is also provided with a second screw hole connected to the mounting slot. The second screw rod is screwed into the second screw hole, and the second screw rod is constructed to be able to extend into the mounting slot from the second screw hole to press against the seat back of the vehicle.

5. The fixing bracket according to claim 4, characterized in that: The second threaded hole is provided on a side of the mounting slot facing away from the mounting structure.

6. A vehicle interior noise testing device, characterized in that: include: Two fixing brackets according to any one of claims 1 to 5, the two fixing brackets being arranged opposite to each other on both sides of the seat back of the vehicle along the width direction of the vehicle; as well as Two sound collecting devices are provided in one-to-one correspondence with the two fixing brackets, and each sound collecting device is installed on the corresponding installation structure.

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