Abnormal sound detection equipment for automobile chassis

Abstract

The utility model discloses an abnormal sound detection device for an automobile chassis. The abnormal sound detection device for the automobile chassis comprises a plurality of sound pickups arranged on the automobile chassis and a plurality of receivers arranged in an automobile cab, each receiver is electrically connected with an oscilloscope; each receiver is electrically connected with an audio indicating lamp. The plurality of audio indicating lamps are connected in parallel with the first battery; the automobile chassis abnormal sound detection device further comprises a power amplifier module. The power amplifier module is electrically connected with a second battery, an earphone device and an adjusting switch. And the power amplifier module can be electrically connected with the receiver through the adjusting switch. The abnormal sound testing device solves the problem that abnormal sound testing equipment in the prior art can only perform sound playing on signals collected by abnormal sound parts, manual judgment and recognition are performed, and the recognition precision is poor.

Description

Technical Field

[0001] This utility model relates to the field of automotive repair and testing, specifically to a device for detecting abnormal noises from an automotive chassis. Background Technology

[0002] In the automotive repair field, abnormal noises frequently occur in car chassis, mostly during vehicle operation. Repair personnel often struggle to accurately pinpoint the location of these noises while the vehicle is in motion, hindering targeted repairs and significantly reducing efficiency. Currently, various devices and methods exist for detecting chassis noises. For example, Chinese patent CN202311376494.9 provides an in-vehicle noise testing device. This device uses a voice acquisition device to collect driver voice commands for voice recognition, or a channel switching device to collect and recognize channel switching commands, obtaining the corresponding channel number. The sound collected by the corresponding channel number is then played back to the driver via a sound playback device, allowing the driver to hear sounds from various locations within the vehicle while driving and thus identify abnormal noises. However, existing noise testing devices like the one described above can only play back the signals collected from the source of the noise and require manual judgment, resulting in relatively poor accuracy. Utility Model Content

[0003] The purpose of this invention is to provide a vehicle chassis abnormal noise detection device, which solves the problem that existing abnormal noise testing devices can only play sound from the signals collected from the abnormal noise location and require manual judgment and identification, resulting in poor identification accuracy.

[0004] To achieve the above objectives, this utility model provides a vehicle chassis abnormal noise detection device, which includes multiple microphones installed on the vehicle chassis and multiple receivers installed in the vehicle's driver's cab.

[0005] Each of the receivers is electrically connected to an oscilloscope;

[0006] Each of the receivers is also electrically connected to an audio indicator light;

[0007] Multiple audio indicator lights are connected in parallel with the first battery;

[0008] The vehicle chassis abnormal noise detection device also includes a power amplifier module, which is electrically connected to a second battery, an earphone device, and an adjustment switch; enabling the power amplifier module to be electrically connected to the receiver via the adjustment switch.

[0009] Preferably, an isolation resistor R3 is provided at the contact of the regulating switch.

[0010] Preferably, the receiver is electrically connected to the oscilloscope via a first sliding resistor R1.

[0011] Preferably, the receiver is electrically connected to the audio indicator light via a second sliding resistor R2.

[0012] Preferably, the microphone and the receiver are connected via a WIFI module or a Bluetooth module.

[0013] Preferably, a switch indicator light is connected in parallel on the first battery and the second battery respectively.

[0014] This utility model provides a vehicle chassis abnormal noise detection device, which includes multiple microphones installed on the vehicle chassis and multiple receivers installed in the vehicle's driver's cab; each receiver is electrically connected to an oscilloscope; each receiver is also electrically connected to an audio indicator light; the multiple audio indicator lights are connected in parallel with a first battery; the vehicle chassis abnormal noise detection device also includes a power amplifier module, which is electrically connected to a second battery, an earphone device, and an adjustment switch; so that the power amplifier module can be electrically connected to the receivers through the adjustment switch. The microphone here is a well-known and commonly used type in the art, mainly installed on components of the car chassis that may produce abnormal noises, to collect the sound of these noises. The receiver works in conjunction with the microphone to receive the audio signal emitted by the microphone transmitter. The receiver is electrically connected to an oscilloscope, which allows the waveform analysis to determine whether the collected audio signal is normal, facilitating subsequent fault analysis. Simultaneously, the receiver is also electrically connected to audio indicator lights, which are also well-known and commonly used types in the art. The flashing intensity of the audio indicator lights allows for a visual assessment of the initial abnormal noise fault point at the test site. Afterwards, by adjusting the switch and connecting to the corresponding receiver, a headphone device can be used for focused monitoring. The car chassis abnormal noise detection device provided by this invention can detect and determine abnormal noise points in the chassis while the car is in motion. It employs a combination of methods, greatly improving the accuracy and precision of abnormal noise point identification and increasing the efficiency of chassis abnormal noise detection and repair.

[0015] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is the circuit diagram of the automotive chassis abnormal noise detection device provided by this utility model. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0019] like Figure 1 As shown, this utility model provides a vehicle chassis abnormal noise detection device. The device includes multiple microphones mounted on the vehicle chassis and multiple receivers mounted in the vehicle's driver's cab. Each receiver is electrically connected to an oscilloscope. Each receiver is also electrically connected to an audio indicator light. Multiple audio indicator lights are connected in parallel with a first battery. The device also includes a power amplifier module 1, which is electrically connected to a second battery, an earphone device 2, and an adjustment switch 3. This allows the power amplifier module 1 to be electrically connected to the receivers via the adjustment switch 3. Figure 1 As shown, for example, four microphones (A1, B1, C1, and D1) are installed at key locations in the car chassis where abnormal noises may occur, and four corresponding receivers (A3, B3, C3, and D3) are installed inside the vehicle. Each microphone is electrically connected to four audio indicator lights (A2, B2, C2, and D2), which are powered by battery U1. The flashing intensity of the audio indicator lights allows for a visual assessment of the initial abnormal noise fault point at the testing site. Afterwards, the corresponding receiver can be connected via an adjustment switch, and a headphone device can be used for focused monitoring. The receiver is also electrically connected to an oscilloscope, which allows for waveform analysis to determine whether the acquired audio signal is normal, facilitating subsequent fault analysis. The car chassis abnormal noise detection device provided by this invention can detect and determine abnormal noise points in the chassis while the car is in motion. It employs a combination of methods, greatly improving the accuracy and precision of abnormal noise point identification and increasing the efficiency of chassis abnormal noise detection and repair.

[0020] In a preferred embodiment of this utility model, in order to prevent mutual interference between signals and ensure clear signal transmission, an isolation resistor R3 is provided at the contact of the regulating switch 3.

[0021] In a preferred embodiment of this utility model, in order to facilitate the adjustment of the electrical signal input to the oscilloscope, the receiver is electrically connected to the oscilloscope through a first sliding resistor R1.

[0022] In a preferred embodiment of this utility model, in order to facilitate the adjustment of the electrical signal supplied to the audio indicator light, the receiver is electrically connected to the audio indicator light through a second sliding resistor R2.

[0023] In a preferred embodiment of this invention, the microphone and the receiver are connected via a Wi-Fi module or a Bluetooth module. The microphone and receiver can be of types known and commonly used in the art.

[0024] In a preferred embodiment of this utility model, in order to facilitate observation of the battery's on / off state, a switch indicator light is connected in parallel on the first battery and the second battery respectively.

[0025] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0026] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0027] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A vehicle chassis abnormal noise detection device, characterized in that, The vehicle chassis abnormal noise detection device includes multiple microphones installed on the vehicle chassis and multiple receivers installed in the vehicle's driver's cab. Each of the receivers is electrically connected to an oscilloscope; Each of the receivers is also electrically connected to an audio indicator light; Multiple audio indicator lights are connected in parallel with the first battery; The vehicle chassis noise detection device also includes a power amplifier module (1), on which a second battery, an earphone device (2), and an adjustment switch (3) are electrically connected respectively; so that the power amplifier module (1) can be electrically connected to the receiver through the adjustment switch (3).

2. The vehicle chassis abnormal noise detection device according to claim 1, characterized in that, An isolation resistor R3 is provided at the contact of the regulating switch (3).

3. The automotive chassis abnormal noise detection device according to claim 2, characterized in that, The receiver is electrically connected to the oscilloscope via a first sliding resistor R1.

4. The vehicle chassis abnormal noise detection device according to claim 3, characterized in that, The receiver is electrically connected to the audio indicator light via a second sliding resistor R2.

5. The vehicle chassis abnormal noise detection device according to claim 4, characterized in that, The microphone and the receiver are connected via a WIFI module or a Bluetooth module.

6. The vehicle chassis abnormal noise detection device according to claim 5, characterized in that, A switch indicator light is connected in parallel to each of the first and second batteries.

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