Vibration noise test fixture for vehicle-mounted receiver and player

Abstract

The utility model discloses a kind of vehicle-mounted take-up machine vibration noise test clamps, including one direction X, two directions Y, three directions Z and base, the side of the base is equipped with front positioning member and rear positioning member, the rear positioning member is in one direction X and is located in the rear of the front positioning member;The rear positioning member includes the outer fixed plate being arranged in the side of the base, the outer fixed plate is equipped with stiffened rib plate in three directions Z and close to the side of the side edge of the base, the inner recess is opened in three directions Z and away from the side of the side edge of the base in the outer fixed plate, the side of the outer fixed plate away from the base is equipped with upper positioning part. Thus, vehicle-mounted take-up machine is quickly clamped, the vibration noise of vehicle-mounted take-up machine can be tested alone, without installing in whole vehicle case to test, greatly reduce research and development cost.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive electronics, and in particular to a vibration and noise testing fixture for vehicle radios. Background Technology

[0002] Vibration and noise testing is not currently required in China and is still in the exploratory stage. We developed and designed this device based on automotive standards.

[0003] Car radios are installed on vehicles, and the noise generated by the vehicle under different road conditions is significant. To reduce this noise, a separate test of the radio's noise level is required. This involves using the fixture described in this application to simulate the radio's installation angle on the vehicle, along with a vibration platform to simulate the noise levels under full vehicle conditions, and then testing and recording the results. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to propose a vibration and noise testing fixture for vehicle radios, which allows for quick clamping of vehicle radios and can test their vibration and noise independently without requiring them to be installed in the entire vehicle, thus greatly reducing research and development costs.

[0006] To achieve the above objectives, this utility model proposes a vibration and noise testing fixture for a vehicle-mounted radio / cassette player, comprising a base and a base in one direction (X), a second direction (Y), a third direction (Z). A front positioning component and a rear positioning component are provided on one side of the base. The rear positioning component is located behind the front positioning component in the first direction (X). The rear positioning component includes an outer fixing plate disposed on one side of the base. A reinforcing rib is provided on the side of the outer fixing plate closest to the base in the third direction (Z). An inwardly recessed portion is formed on the side of the outer fixing plate furthest from the base in the third direction (Z). An upper positioning portion is provided on the side of the outer fixing plate opposite to the base.

[0007] This utility model provides a vehicle-mounted radio / telephone vibration and noise testing fixture, which allows for quick clamping of the vehicle-mounted radio / telephone and enables independent testing of its vibration and noise without requiring it to be installed in the entire vehicle, thus significantly reducing research and development costs.

[0008] In addition, the vehicle-mounted radio vibration and noise testing fixture proposed in the application may also have the following additional technical features: Specifically, the front positioning component includes an outer frame disposed on one side of the base, and positioning holes are formed on the side of the outer frame close to the side of the base along the three directions Z.

[0009] Specifically, the upper positioning part is integrally formed with the outer fixing plate, and a through hole is opened on the side of the upper positioning part near the inner recess.

[0010] Specifically, the recessed portion is a limiting groove, and the recessed portion is inclinedly formed on the outer fixing plate.

[0011] Specifically, the base is provided with multiple sets of threaded holes evenly distributed, and the front positioning member and the rear positioning member are respectively installed on the base by screws that match the threaded holes.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the workpiece loading test structure of this utility model.

[0014] As shown in the figure: X, direction 1; Y, direction 2; Z, direction 3; 10, base; 20, front positioning part; 30, rear positioning part; 301, outer fixing plate; 302, reinforcing rib plate; 303, upper positioning part; 304, concave part; 40, receiver to be tested. Detailed Implementation

[0015] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the appended spirit and connotation.

[0016] The following description, in conjunction with the accompanying drawings, describes the vehicle-mounted radio vibration and noise testing fixture according to an embodiment of the present invention.

[0017] like Figure 1-2As shown, the vehicle-mounted radio vibration and noise testing fixture of this utility model embodiment includes a base 10 with a first direction X, a second direction Y, a third direction Z, and a front positioning member 20 and a rear positioning member 30 on one side of the base 10. The rear positioning member 30 is located behind the front positioning member 20 in the first direction X. The rear positioning member 30 includes an outer fixing plate 301 disposed on one side of the base 10. The outer fixing plate 301 has a reinforcing rib plate 302 on the side of the base 10 in the third direction Z. The outer fixing plate 301 has an inward recess 304 on the side of the base 10 in the third direction Z. The outer fixing plate 301 has an upper positioning part 303 on the side away from the base 10.

[0018] It should be noted that the base 10 described in this embodiment is mounted on a vibration platform specifically designed for testing the vibration of automotive radios. Two front positioning members 20 and two rear positioning members 30 are symmetrically mounted on the base 10. The reinforcing ribs 302 on the rear positioning member 30 are fitted to the surface of the base 10, enhancing the overall stability of the connection. Simultaneously, the upper positioning part 303 and the recessed part 304, in conjunction with the front positioning member 20, limit the installation of the radio 40 under test, enabling vibration testing of the radio 40.

[0019] In one embodiment of this utility model, such as Figure 1 As shown, the front positioning member 20 includes an outer frame disposed on one side of the base 10, and positioning holes are opened on the side of the outer frame close to the side of the base 10 along the three directions Z.

[0020] It should be noted that the outer frame of the front positioning component 20 has a through opening along one direction X. The receiver 40 to be tested is inserted into the front positioning component 20 and the rear positioning component 30, and the receiver 40 to be tested is fixed by limiting and locking through the positioning holes, thereby enhancing the overall stability of the receiver 40 to be tested during installation.

[0021] In one embodiment of this utility model, such as Figure 1 As shown, the upper positioning part 303 is integrally formed with the outer fixing plate 301, and a through hole is opened on the side of the upper positioning part 303 near the inner recess 304.

[0022] It should be noted that the upper positioning part 303 has a similar structure to the front positioning part 20. When the receiver 40 to be tested is installed, it is inserted into the upper positioning part 303 and the front positioning part 20 respectively. Then, the receiver 40 to be tested is locked in the recessed part 304.

[0023] In one embodiment of this utility model, such as Figure 1 As shown, the recessed portion 304 is a limiting slide groove, and the recessed portion 304 is inclinedly opened on the outer fixing plate 301.

[0024] It should be noted that the recessed portion 304 is designed according to the model of the radio 40 to be tested, so that the radio 40 to be tested matches its shape during installation. This ensures that the radio 40 to be tested is securely installed and locked, thus guaranteeing the overall stability of the radio 40 to be tested before testing.

[0025] In one embodiment of this utility model, such as Figure 1 As shown, the base 10 is provided with multiple sets of threaded holes evenly distributed. The front positioning member 20 and the rear positioning member 30 are respectively installed on the base 10 by screws that match the threaded holes.

[0026] It should be noted that the assembly is performed according to the model of the radio 40 to be tested.

[0027] Specifically, the vibration and noise testing steps for the vehicle-mounted radio / cassette player are as follows: First, based on the model, shape, and size of the radio / cassette player 40 to be tested, install the front positioning component 20 and the rear positioning component 30 on the base 10. Then, install the radio / cassette player 40 to be tested, using the recessed part 304, the upper positioning part 303, and the front positioning component 20 for positioning. Subsequently, simulated testing on a vibration test table is used to test the vibration and noise of the vehicle-mounted radio / cassette player 40.

[0028] In summary, the vehicle-mounted radio vibration and noise testing fixture of this utility model embodiment allows for quick clamping of the vehicle-mounted radio and allows for independent testing of the vibration and noise of the radio without requiring it to be installed in the entire vehicle, thus greatly reducing research and development costs.

[0029] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A vibration and noise testing fixture for a vehicle-mounted radio / cassette player, characterized in that, It includes a first direction (X), a second direction (Y), a third direction (Z) and a base (10). The base (10) has a front positioning member (20) and a rear positioning member (30) on one side. The rear positioning member (30) is located behind the front positioning member (20) in the first direction (X). The rear positioning member (30) includes an outer fixing plate (301) disposed on one side of the base (10). The outer fixing plate (301) has a reinforcing rib plate (302) on the side of the base (10) in three directions (Z). The outer fixing plate (301) has an indentation (304) on the side of the base (10) in three directions (Z). The outer fixing plate (301) has an upper positioning part (303) on the side away from the base (10).

2. The vehicle-mounted radio vibration and noise testing fixture according to claim 1, characterized in that, The front positioning member (20) includes an outer frame disposed on one side of the base (10), and positioning holes are provided on the side of the outer frame close to the side of the base (10) along three directions (Z).

3. The vehicle-mounted radio vibration and noise testing fixture according to claim 1, characterized in that, The upper positioning part (303) is integrally formed with the outer fixing plate (301), and a through hole is opened on the side of the upper positioning part (303) near the inner recess (304).

4. The vehicle-mounted radio vibration and noise testing fixture according to claim 1, characterized in that, The recessed portion (304) is a limiting slide groove, and the recessed portion (304) is inclinedly opened on the outer fixing plate (301).

5. The vehicle-mounted radio / receiver vibration and noise testing fixture according to claim 1, characterized in that, The base (10) is provided with multiple sets of threaded holes evenly. The front positioning member (20) and the rear positioning member (30) are respectively installed on the base (10) by screws that match the threaded holes.

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