Testing device

Abstract

The utility model provides a testing device, the testing device comprises a driving assembly, a rotating disk, a mounting rack, an audio acquisition assembly and a control assembly, the rotating disk is provided with a rotating point, the driving assembly drives the rotating disk to rotate by taking the rotating point as a circle center, the rotating disk is provided with a plurality of mounting positions, and the audio acquisition assembly is arranged on the mounting positions. The audio acquisition assembly is provided with a plurality of mounting positions, the plurality of mounting positions are sequentially far away from the rotating point, the mounting rack can be fixedly arranged on any mounting position, the mounting rack is used for mounting a to-be-tested product, and the control assembly is electrically connected with the audio acquisition assembly and the driving assembly. According to the testing device, the driving assembly drives the rotating disc to rotate and drives the to-be-tested product on the mounting frame to synchronously rotate so as to simulate the working environment of the to-be-tested product, the audio collection assembly can collect the sound generated by the to-be-tested product during working in real time, and the control assembly controls the to-be-tested product based on the sound data. And judging whether the to-be-tested product has abnormal sound so as to judge whether the to-be-tested product is qualified.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of test tooling, specifically relates to a testing device. BACKGROUND

[0002] In modern automobile industry, with the continuous improvement of consumer requirements for driving and riding experience, vehicle-mounted refrigerator as an important equipment, its performance and reliability are increasingly concerned. Vehicle-mounted refrigerator not only provides convenient food and beverage refrigeration service for drivers and passengers, but also significantly improves the comfort and convenience of long-distance driving. However, during vehicle driving, the abnormal sound problem of vehicle-mounted refrigerator becomes an important factor affecting user experience and restricting product market competitiveness.

[0003] The abnormal sound problem may not only come from the failure of internal components of vehicle-mounted refrigerator, such as compressor, fan or abnormal refrigeration system, but also be closely related to the motion state of vehicle. For example, under the vehicle motion conditions such as braking, turning or acceleration, vehicle-mounted refrigerator may produce abnormal sound due to external vibration or impact. Such abnormal sound not only reduces the comfort of driving and riding, but also may have potential impact on the performance and service life of vehicle-mounted refrigerator.

[0004] Therefore, accurately testing the abnormal sound performance of vehicle-mounted refrigerator under different vehicle conditions becomes a key link to ensure product quality and meet consumer demand. However, the traditional abnormal sound test method of vehicle-mounted refrigerator mainly relies on actual road test, which has many shortcomings.

[0005] In actual road test, the vehicle loaded with vehicle-mounted refrigerator needs to be driven on specific road conditions to simulate different vehicle motion conditions. Test personnel need to collect audio data during vehicle driving and judge whether the refrigerator has abnormal sound problem according to these data. However, this method not only has high cost, time-consuming and low efficiency, but also is limited by actual road conditions. In addition, the judgment of test results depends largely on the subjective judgment of test personnel, lacking objectivity and accuracy.

[0006] More importantly, actual road test cannot simulate all possible vehicle motion conditions, especially those rare or extreme conditions. For example, in extreme bad road conditions or high-speed driving state, the abnormal sound problem of vehicle-mounted refrigerator may be more prominent, but the traditional actual road test method is difficult to effectively capture these abnormal conditions. INVENTION CONTENTS

[0007] The primary purpose of the utility model is to solve at least one of the above problems and provide a testing device.

[0008] To meet various purposes of the utility model, the utility model adopts the following technical solutions:

[0009] The utility model provides a test device, including drive assembly, carousel, mounting bracket, audio acquisition subassembly and control assembly, be equipped with rotation point on the carousel, drive assembly with rotation point as center drives carousel rotation, be equipped with a plurality of installation sites on the carousel, a plurality of installation sites are in turn far from rotation point, the mounting bracket can be fixed in any one installation site, the mounting bracket is used for installing the product to be tested, control assembly is connected with audio acquisition subassembly and drive assembly electricity respectively.

[0010] Further, the mounting bracket includes an angle adjusting mechanism and a mounting station, the angle adjusting mechanism is fixedly arranged on the corresponding installation site, the mounting station is fixedly arranged on the angle adjusting mechanism, the angle adjusting mechanism can drive the mounting station to rotate relative to the carousel, and the mounting station is used for mounting the product to be tested.

[0011] In one embodiment, the angle adjusting mechanism includes a fixed plate, a shaft, a support plate, and a pair of support seats, the fixed plate is fixedly arranged on the installation site, the pair of support seats are arranged on the fixed plate, the two ends of the shaft are respectively pivotally arranged on the pair of support seats, the support plate is arranged opposite to the fixed plate, and the support plate is fixedly arranged on the shaft.

[0012] In one embodiment, the angle adjusting mechanism further includes a first fixing assembly, the first fixing assembly includes a first screw rod, a second screw rod, and a screw sleeve, the first screw rod is pivotally arranged on the fixed plate, the second screw rod is pivotally arranged on the support plate, and the screw sleeve is screwedly arranged on the first screw rod and the second screw rod.

[0013] In one embodiment, the angle adjusting mechanism further includes a second fixing assembly, the second fixing assembly includes a limiting column, a bolt, and a plurality of first limiting holes formed on the support plate, the limiting column is provided with a second limiting hole, and the bolt is used for being simultaneously inserted into the corresponding first limiting hole and the second limiting hole.

[0014] In a further embodiment, the angle adjusting mechanism includes one first fixing assembly and two second fixing assemblies, the one first fixing assembly and the two second fixing assemblies are arranged in a triangular relationship.

[0015] In one embodiment, the angle adjusting mechanism further includes a fixed block, the fixed block is fixedly connected with the support plate, the fixed block is formed with a fixed surface, the outer side surface of the shaft is formed with a matching surface, and the fixed surface and the matching surface are fixedly connected in a matching mode.

[0016] In one embodiment, the mounting station comprises a mounting plate fixed on the support plate and a pair of fences arranged on both sides of the mounting plate, and the mounting station is formed by the pair of fences and the mounting plate.

[0017] In one embodiment, the testing device further comprises a base frame, the turntable is arranged on the base frame, the driving assembly comprises a motor, the turntable is provided with a rotating hole corresponding to the rotation point, and an output shaft of the motor is in transmission connection with the rotating hole.

[0018] In one embodiment, the product to be tested is a vehicle refrigerator.

[0019] Compared with the prior art, the utility model has many advantages, including but not limited to:

[0020] (1) the testing device of the utility model drives the turntable to rotate through the driving assembly, and drives the vehicle refrigerator on the mounting frame to rotate synchronously, and this process simulates the actual working state of the vehicle refrigerator in the driving process of the automobile. The audio acquisition assembly of the testing device can collect the sound emitted by the vehicle refrigerator when working in different working environments in real time. The control assembly judges whether the vehicle refrigerator has abnormal sound based on these sound data, so as to judge whether the vehicle refrigerator is qualified. This automatic detection mode not only improves the detection efficiency, but also reduces the subjectivity and error of human judgment, so that the test result is more objective and accurate.

[0021] (2) the testing device is provided with a plurality of mounting positions on the turntable, and the mounting positions are sequentially away from the rotation point, so that the mounting positions have different linear velocities when the turntable rotates. According to actual needs, the vehicle refrigerator is installed at different positions on the turntable, so as to simulate different speed and acceleration conditions that the vehicle refrigerator may encounter in the driving process of the automobile. This flexibility greatly improves the comprehensiveness and accuracy of the test.

[0022] (3) the testing device of the utility model simulates various driving scenes of the automobile, and the testing device can comprehensively evaluate whether the vehicle refrigerator has abnormal sound in various working environments, so as to discover and solve potential quality problems in time. This has important significance for improving the overall quality of the vehicle refrigerator, enhancing user experience and improving market competitiveness. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0024] Figure 1 The assembly schematic view of the vehicle refrigerator installed in the testing device of the utility model.

[0025] Figure 2 A structural schematic diagram of a test device of a typical embodiment of the present application.

[0026] Figure 3 A structural schematic diagram of a first perspective of a mounting frame of a test device of a typical embodiment of the present application.

[0027] Figure 4 A structural schematic diagram of a second perspective of a mounting frame of a test device of a typical embodiment of the present application.

[0028] Figure 5 A structural schematic diagram of a third perspective of a mounting frame of a test device of a typical embodiment of the present application.

[0029] Figure 6 A structural schematic diagram of a fixing block and a rotating shaft of a test device of a typical embodiment of the present application. DETAILED DESCRIPTION

[0030] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the same or like reference numerals are used throughout the drawing figures to refer to the same or like elements or to elements with the same or similar functionality. The embodiments described below are exemplary and are not intended to be limiting. Other embodiments can be readily devised and the general principles of the present application can be applied to other embodiments and the scope of protection is not to be interpreted as limited to the description below.

[0031] As can be appreciated by those skilled in the art, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be further understood that the terms "comprise," "comprises," "comprising," "include," "includes," "including," "contain," "contains," "containing," and the like are used interchangeably with "comprising" and should be interpreted as specifying the presence of stated features, integers, steps, operations, elements, and / or components but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we refer to one element being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can also be present. In addition, the use of "connection" or "coupling" herein also includes wireless connection or wireless coupling. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0032] As can be appreciated by those skilled in the art, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains unless otherwise specifically defined herein. It should further be appreciated that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0033] The utility model provides a kind of testing device, which can be used to simulate the working environment of a vehicle-mounted refrigerator, detect whether there is abnormal noise when the vehicle-mounted refrigerator is working, improve the detection efficiency of the vehicle-mounted refrigerator, and reduce the detection cost.

[0034] In the typical embodiments of the utility model, in combination Figure 1 The testing device 10 is used to detect whether the product to be tested has abnormal noise. In the following, the product to be tested is a vehicle-mounted refrigerator 600, and the testing device 10 is used to detect whether the vehicle-mounted refrigerator 600 has abnormal noise as an example to describe the utility model, but it should not be understood as a limitation of the utility model.

[0035] In combination Figure 1 With Figure 2 The testing device 10 includes a driving assembly 100, a turntable 200, a mounting bracket 300, a chassis 400, an audio acquisition assembly, and a control assembly. The control assembly is electrically connected to the driving assembly 100 and the audio acquisition assembly, respectively.

[0036] The testing device 10 is used to detect whether the vehicle-mounted refrigerator 600 has abnormal noise when it is working. The testing device 10 can simulate various working environments of the vehicle-mounted refrigerator 600. It can be understood that the testing device 10 simulates various driving scenarios of a car to simulate various working environments of the vehicle-mounted refrigerator 600. The audio acquisition assembly is used to collect the sound emitted by the vehicle-mounted refrigerator 600 when it is working in different environments. The control assembly judges whether the vehicle-mounted refrigerator 600 has abnormal noise based on the sound collected by the audio acquisition assembly. When the vehicle-mounted refrigerator 600 has abnormal noise, it is judged as unqualified. When the vehicle-mounted refrigerator 600 does not have abnormal noise, it is judged as qualified. In this embodiment, it is recommended that the control assembly be a control chip or a single-chip microcomputer, but it should not be understood as a limitation of the utility model.

[0037] In another embodiment, the sound collected by the audio acquisition assembly will be output externally through a loudspeaker. The tester can listen to the sound through the loudspeaker and manually judge whether there is abnormal noise in the sound to determine whether the vehicle-mounted refrigerator 600 is qualified. In this embodiment, it is recommended that the loudspeaker be a headset or a sound system, but it should not be understood as a limitation of the utility model.

[0038] In the typical embodiment of the utility model, the rotating disc 200 is arranged on the chassis 400, the rotating disc 200 is equipped with a rotating point, and a rotating hole 210 is arranged at the position of the rotating point. The driving assembly 100 comprises a motor 110, and the output shaft 111 of the motor 110 is inserted into the rotating hole 210, so that the motor 110 can drive the rotating disc 200 to rotate. The control assembly controls the rotating speed and rotating direction of the rotating disc 200 by controlling the operation of the motor 110. In the embodiment, the driving assembly 100 is arranged in the chassis 400, so that the installation space of the testing device 10 is saved, and the miniaturization of the testing device 10 is facilitated.

[0039] The rotating disc 200 is equipped with a plurality of mounting positions 220, the plurality of mounting positions 220 are arranged at the outer side of the rotating point with the rotating point as the center, the plurality of mounting positions 220 are arranged at the outer side of the rotating point with the rotating point as the center, and the distance between each of the plurality of mounting positions 220 and the rotating point is different. When the rotating disc 200 rotates, the angular velocity of each position of the rotating disc 200 is the same, but because the distance between the plurality of mounting positions 220 and the rotating point is different, the linear velocity of each of the plurality of mounting positions 220 is different. The linear velocity of the mounting position 220 close to the rotating point is smaller, and the linear velocity of the mounting position 220 far away from the rotating point is larger.

[0040] In the embodiment, the rotating disc 200 is a long strip plate structure, but it should not be understood as a limitation of the utility model. The rotating point is arranged at the center of the rotating disc 200, and the plurality of mounting positions 220 are arranged on both sides of the rotating point.

[0041] The mounting rack 300 can be mounted in any one of the mounting positions 220, and when the mounting position 220 is arranged on different mounting positions 220, the linear velocity is different. The mounting rack 300 is used for mounting the vehicle refrigerator 600 to be detected, the control assembly controls the operation of the motor 110, the motor 110 drives the rotating disc 200 to rotate, and the rotating disc 200 drives the vehicle refrigerator 600 mounted on the mounting rack 300 to rotate synchronously, so as to simulate the working environment of the vehicle refrigerator 600. In addition, the control assembly can further control the speed change of the motor 110, so as to further simulate the working scene of the brake or acceleration of the automobile, so as to further simulate the working environment of the vehicle refrigerator 600.

[0042] In the typical embodiment of the utility model, the rotating disc 200 is arranged on the chassis 400, the rotating disc 200 is equipped with a rotating point, and a rotating hole 210 is arranged at the position of the rotating point. The driving assembly 100 comprises a motor 110, and the output shaft 111 of the motor 110 is inserted into the rotating hole 210, so that the motor 110 can drive the rotating disc 200 to rotate. The control assembly controls the rotating speed and rotating direction of the rotating disc 200 by controlling the operation of the motor 110. In the embodiment, the driving assembly 100 is arranged in the chassis 400, so that the installation space of the testing device 10 is saved, and the miniaturization of the testing device 10 is facilitated. Figures 3 to 5The mounting rack 300 comprises an angle adjusting mechanism 310 and a mounting station 320, and the vehicle-mounted refrigerator 600 is arranged in the mounting station 320. The angle adjusting mechanism 310 is fixed on the corresponding mounting position 220 of the turntable 200, the mounting station 320 is arranged on the angle adjusting mechanism 310, and the angle adjusting mechanism 310 can drive the mounting station 320 to rotate relative to the turntable 200, so that the mounting station 320 can be inclined relative to the turntable 200, different angles of the vehicle-mounted refrigerator 600 in the car are simulated, or the inclination angle of the vehicle-mounted refrigerator 600 relative to the road surface when the car turns is simulated, so as to enrich the test scene of the vehicle-mounted refrigerator 600, further simulate the working environment of the vehicle-mounted refrigerator 600, and facilitate accurate detection of whether the vehicle-mounted refrigerator 600 will produce abnormal sound when working in different test scenes, and improve the detection accuracy.

[0043] The angle adjusting mechanism 310 comprises a fixed plate 311, a rotating shaft 312, a supporting plate 315, a fixed block 313 and a pair of supporting seats 314. The fixed plate 311 is arranged on the corresponding mounting position 220 of the turntable 200, for example, the fixed plate 311 is threadedly connected with the mounting position 220, so that the fixed plate 311 is fixed on the mounting position 220. The pair of supporting seats 314 are arranged on the fixed plate 311, and the pair of supporting seats 314 are arranged at intervals. The supporting seat 314 is provided with a pivot hole 3141 or a pivot slot. Hereinafter, the pivot hole 3141 in the supporting seat 314 is taken as an example to describe the utility model, but it is not understood as a limitation of the utility model.

[0044] The two ends of the rotating shaft 312 are respectively inserted into the pivot holes 3141 of the pair of supporting seats 314, so that the rotating shaft 312 is limited by the pair of supporting seats 314 and cannot move axially and radially, but the rotating shaft 312 can rotate circumferentially.

[0045] In combination Figure 6 The fixed block 313 is formed with a fixed surface 3131, and the outer side surface of the rotating shaft 312 is formed with a matching surface 3121. The fixed surface 3131 is fixedly connected with the matching surface 3121, so that when the rotating shaft 312 rotates, the rotating shaft 312 will drive the fixed block 313 to rotate synchronously. In this embodiment, the outer side surface of the rotating shaft 312 is cut to form the matching surface 3121 in a planar structure, and the fixed surface 3131 is also in a planar structure, so as to facilitate the fixed surface 3131 to be fixedly connected with the matching surface 3121. In this embodiment, the fixed block 313 and the rotating shaft 312 are threadedly connected by bolts, so that the fixed block 313 is fixed on the rotating shaft 312, so as to facilitate the rotating shaft 313 to drive the fixed block 313 to rotate.

[0046] Combination Figures 3 to 5 The support plate 315 is disposed on the fixing block 313, and the installation station 320 is disposed on the support plate 315. When the rotating shaft 312 rotates, the rotating shaft 312 will drive the support plate 315 and the installation station 320 to rotate synchronously through the fixing block 313, so that the installation station 320 is tilted relative to the turntable 200 to simulate different working environments of the vehicle refrigerator 600, thereby effectively detecting whether the vehicle refrigerator 600 will produce abnormal noise when working in different test scenarios, and thus improving the detection accuracy of the vehicle refrigerator 600.

[0047] The angle adjustment mechanism 310 also includes a first fixing component, which fixes the support plate 315 at a preset angle, thereby fixing the installation station 320 at the preset angle to simulate the specific arrangement angle of the vehicle refrigerator 600 in the car and improve the simulation accuracy.

[0048] Specifically, in combination Figure 1 The first fixing component includes a threaded sleeve 331 and two screws, referred to as the first screw 332 and the second screw 333, respectively. One end of the first screw 332 is pivotally connected to the fixing plate 311, and the other end of the first screw 332 is inserted into the threaded sleeve 331 through the first opening, so that the first screw 332 and the threaded sleeve 331 constitute a screw mechanism. One end of the second screw 333 is pivotally connected to the support plate 315, and the other end of the second screw 333 is inserted into the threaded sleeve 331 through the second opening, so that the second screw 333 and the threaded sleeve 331 constitute a screw mechanism. That is to say, the first screw 332 and the second screw 333 respectively constitute screw mechanisms with the threaded sleeve 331.

[0049] When it is necessary to fix the installation station 320 at a preset angle, the drive shaft 312 is rotated. When the shaft 312 rotates to the preset angle, since the first screw 332 and the second screw 333 are each screwed to the threaded sleeve 331, the support plate 315 is fixed at the preset angle by controlling the length of the first screw 332 and the second screw 333 extending into the threaded sleeve 331. This simultaneously fixes the installation station 320 fixed on the support plate 315 at the preset angle. In other words, the first fixing component is used to fix the installation station 320 at the preset angle so as to simulate the specific arrangement angle of the vehicle refrigerator 600 in the car and improve the simulation accuracy.

[0050] In one embodiment, the angle adjustment mechanism 310 further includes a second fixing component, combined with Figure 4 and Figure 5The second fixing component includes a limiting post 341, a pin (not shown), and a limiting part. The limiting part is disposed on the edge of the support plate 315, and the limiting part includes a plurality of first limiting holes 3421, which are sequentially arranged along the edge of the support plate 315. The limiting post 341 is vertically disposed on the fixing plate 311, and the limiting post 341 has a second limiting hole 3411.

[0051] When the support plate 315 rotates relative to the turntable 200 and is fixed at a preset angle, the second limiting hole 3411 on the limiting post 341 is aligned with one of the first limiting holes 3421 on the support plate 315. The first limiting hole 3421 and the second limiting hole 3411 are simultaneously inserted by a pin to further fix the installation station 320 at the preset angle and improve the structural stability of the installation station 320 at the preset angle.

[0052] In a further embodiment, combined with Figure 5 The angle adjustment mechanism 310 includes a first fixing component and two second fixing components. The two second fixing components are respectively disposed on the two sides of the support plate 315, and the first fixing component and the two second fixing components are arranged in a triangular relationship to further fix the installation station 320 at a preset angle and improve the structural stability of the installation station 320 at the preset angle.

[0053] In a typical embodiment of this utility model, combined with Figures 3 to 5 The installation station 320 includes an installation plate 321 and a pair of railings 322. The installation plate 321 is fixedly mounted on the support plate 315. For example, the installation plate 321 and the support plate 315 are connected by bolts and threads to fix the installation plate 321 to the support plate 315. The pair of railings 322 are located on both sides of the installation plate 321 and are connected to the installation plate 321, so that the installation plate 321 and the pair of railings 322 together form the installation station 320. The vehicle refrigerator 600 is located on the installation plate 321, and the pair of railings 322 are located on both sides of the vehicle refrigerator 600 to limit the position of the vehicle refrigerator 600, so that the vehicle refrigerator 600 can be stably installed on the installation station 320.

[0054] In one embodiment, a connecting beam (not shown) is provided between the pair of fences 322 to connect the pair of fences 322 and improve the structural stability of the pair of fences 322, thereby improving the structural stability of the installation station 320.

[0055] In one embodiment, the fence 322 is provided with a plurality of threaded holes (not shown), and a limiting bolt 324 is inserted into the threaded holes and extends through the threaded holes to the vehicle-mounted refrigerator 600. The limiting bolt 324 abuts against the vehicle-mounted refrigerator 600 to further limit the vehicle-mounted refrigerator 600, so that the vehicle-mounted refrigerator 600 is stably installed on the mounting station 320. A plurality of limiting bolts 324 are respectively inserted into the plurality of threaded holes, and the plurality of limiting bolts 324 cooperate to further fix the vehicle-mounted refrigerator 600 on the mounting station 320.

[0056] In a typical embodiment of the present application, the audio acquisition component is responsible for capturing audio data generated by the vehicle-mounted refrigerator 600 in real time during the test process. These audio data can be used to determine the noise parameters of the vehicle-mounted refrigerator 600 under different working conditions. The audio acquisition component is electrically connected with the control component to ensure that the audio data can be transmitted and processed in real time. The audio acquisition component includes but is not limited to directional microphones, stereo microphone arrays, electronic stethoscopes, high-sensitivity pickups, etc., which can accurately capture the sound wave signals generated by the vehicle-mounted refrigerator 600 under various working conditions and convert them into audio data. These audio acquisition components can be selected and configured according to the specific requirements and environmental conditions of the test to ensure that clear and accurate audio data can be obtained, providing a reliable basis for subsequent abnormal sound judgment and analysis. The control component can accurately determine whether the vehicle-mounted refrigerator 600 has abnormal sound based on the audio data, and further determine whether the vehicle-mounted refrigerator 600 is qualified.

[0057] The audio acquisition component can be arranged near the mounting rack 300, such as close to any one side of the vehicle-mounted refrigerator 600 for detection, or built-in the refrigerator room for detection, etc., to record the sound emitted by the vehicle-mounted refrigerator 600 during the working process in real time. The audio acquisition component can be a high-sensitivity microphone, which can capture the subtle sound of the refrigerator during operation, including but not limited to the vibration sound of the compressor, the noise of the fan, and other possible sound.

[0058] In one embodiment, the control component includes an electric control box 510, which is provided with a control chip or a single-chip microcomputer. The electric control box 510 controls the operation of the test device 10. In this embodiment, it is recommended that the electric control box 510 is provided with a PLC control system to facilitate circuit control.

[0059] In summary, the test device of the present application simulates the working environment of the vehicle-mounted refrigerator, detects whether the vehicle-mounted refrigerator has abnormal sound during operation, and determines whether the vehicle-mounted refrigerator is qualified.

[0060] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the utility model range involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by the above technical features or their equivalent features in any combination without departing from the above utility model concept. For example, the above features and the technical features with similar functions in the present application (but not limited to) are replaced with each other to form a technical solution.

[0061] Although the subject matter has been described in language specific to structural features and / or methodological acts, it is to be understood that the subject defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims

1. A test device, characterized by The test device comprises a driving assembly, a rotating disc, a mounting rack, an audio acquisition assembly and a control assembly, the rotating disc is provided with a rotation point, the driving assembly drives the rotating disc to rotate with the rotation point as the center, the rotating disc is provided with a plurality of mounting positions, the mounting positions are sequentially away from the rotation point, the mounting rack is fixedly arranged on any one of the mounting positions, the mounting rack is used for mounting a product to be tested, and the control assembly is electrically connected with the audio acquisition assembly and the driving assembly.

2. The test device of claim 1, wherein, The mounting rack comprises an angle adjusting mechanism and a mounting station, the angle adjusting mechanism is fixedly arranged on the corresponding mounting position, the mounting station is fixedly arranged on the angle adjusting mechanism, the angle adjusting mechanism can drive the mounting station to rotate relative to the rotating disc, and the mounting station is used for mounting the product to be tested.

3. The test device of claim 2, wherein, The angle adjusting mechanism comprises a fixed plate, a rotating shaft, a support plate and a pair of support seats, the fixed plate is fixedly arranged on the mounting position, the pair of support seats are arranged on the fixed plate in a spaced manner, the rotating shaft is pivotally connected with the pair of support seats at two ends, and the support plate is arranged opposite to the fixed plate in a top-bottom manner and is fixedly arranged on the rotating shaft.

4. The test device of claim 3, wherein, The angle adjusting mechanism further comprises a first fixing assembly, the first fixing assembly comprises a first screw rod, a second screw rod and a screw sleeve, the first screw rod is pivotally connected with the fixed plate, the second screw rod is pivotally connected with the support plate, and the screw sleeve is screw-connected with the first screw rod and the second screw rod.

5. The test device of claim 4, wherein, The angle adjusting mechanism further comprises a second fixing assembly, the second fixing assembly comprises a limiting column, a bolt and a plurality of first limiting holes formed on the support plate, the limiting column is provided with a second limiting hole, and the bolt is used for being simultaneously inserted into the corresponding first limiting hole and the second limiting hole.

6. The test device of claim 5, wherein, The angle adjusting mechanism comprises one first fixing assembly and two second fixing assemblies, and the one first fixing assembly and the two second fixing assemblies are arranged in a triangular relationship.

7. The test device of claim 3, wherein, The angle adjusting mechanism further comprises a fixed block, the fixed block is fixedly connected with the support plate, the fixed block is formed with a fixed surface, an outer side surface of the rotating shaft is formed with a matching surface, and the fixed surface and the matching surface are fixedly connected in a matching mode.

8. The test device of claim 3, wherein, The mounting station comprises a mounting plate and a pair of fences, the mounting plate is fixedly arranged on the support plate, the pair of fences are arranged on two sides of the mounting plate, and the pair of fences and the mounting plate are arranged in a surrounding mode to form the mounting station.

9. The test device of claim 1, wherein, The test device further comprises a base frame, the rotating disc is arranged on the base frame, the driving assembly comprises a motor, the rotating disc is provided with a rotating hole corresponding to the rotation point, and an output shaft of the motor is in transmission connection with the rotating hole.

10. The test device of any one of claims 1 to 9, wherein, The product to be tested is a vehicle-mounted refrigerator.

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