A noise and vibration detection device for automobile parts

Abstract

The utility model relates to a noise vibration detection device for automobile parts, comprising a shell, a signal acquisition module, a conversion module and a transmission module, wherein the signal acquisition module is arranged outside the shell, the conversion module is arranged inside the shell, the transmission module is fixedly mounted on the shell, and the conversion module is electrically connected to the signal acquisition module and the transmission module respectively; the signal acquisition module is arranged on the part to be detected of the automobile, the signal acquisition module is used to collect the first vibration signal generated by the part to be detected, and the first vibration signal is an analog voltage signal; the conversion module is used to convert the first vibration signal into a second vibration signal, and the second vibration signal is a digital voltage signal; the transmission module is used to transmit the second vibration signal to an electronic device, so that the electronic device processes the second vibration signal to obtain the detection result of the part to be detected. The detection device is compact and light, has low manufacturing cost, is easy to carry, is convenient to use, and can improve user experience and satisfaction.

Description

Technical Field

[0001] The utility model relates to the technical field of component detection, in particular to a noise and vibration detection device for automobile components. Background Art

[0002] With the development of Internet technology and the automobile industry, the number of cars owned in my country is increasing, and people's requirements for the safety performance of cars are getting higher and higher.

[0003] As the age and mileage of cars increase, auto parts will gradually produce various faults or safety hazards, which are generally manifested as increasing vibration noise. Such vibration noise can easily stimulate and interfere with the owner's driving, bringing safety hazards. At present, the existing automobile noise and vibration detection equipment on the market is expensive, inconvenient to carry, poor user experience, and low user satisfaction. Utility Model Content

[0004] In view of this, an embodiment of the utility model provides a noise and vibration detection device for automobile parts. The detection device is small and light, has a low manufacturing cost, is easy to carry, and is convenient to use, and can improve user experience and satisfaction.

[0005] In order to solve the above technical problems, the present utility model provides the following technical solutions:

[0006] The utility model provides a noise and vibration detection device for automobile parts, comprising:

[0007] A housing, a signal acquisition module, a conversion module and a transmission module, wherein the signal acquisition module is arranged outside the housing, the conversion module is arranged inside the housing, the transmission module is fixedly mounted on the housing, and the conversion module is electrically connected to the signal acquisition module and the transmission module respectively;

[0008] The signal acquisition module is arranged on the to-be-detected component of the automobile, and is used to acquire a first vibration signal generated by the to-be-detected component, wherein the first vibration signal is an analog voltage signal;

[0009] The conversion module is used to convert the first vibration signal into a second vibration signal, where the second vibration signal is a digital voltage signal;

[0010] The transmission module is used to transmit the second vibration signal to the electronic device, so that the electronic device processes the second vibration signal to obtain the detection result of the component to be detected.

[0011] In some embodiments, the apparatus further comprises:

[0012] a signal amplifying module disposed in the housing, the signal amplifying module being electrically connected to the signal acquisition module and the conversion module respectively, and the signal amplifying module being used to sample and amplify the first vibration signal to obtain an amplified first vibration signal;

[0013] The conversion module is used to convert the amplified first vibration signal into a second vibration signal.

[0014] In some embodiments, the signal amplification module includes one or more of a capacitive piezoelectric microphone, a vibration amplifier, and a vibration analyzer.

[0015] In some embodiments, the apparatus further comprises:

[0016] a signal filtering module disposed on the housing, the signal filtering module being electrically connected to the signal acquisition module and the signal amplification module respectively, and the signal filtering module being used to filter the first vibration signal to obtain a filtered first vibration signal;

[0017] The signal amplification module is used to sample and amplify the filtered first vibration signal to obtain the amplified first vibration signal.

[0018] In some embodiments, the signal filtering module includes one or more of a differential amplifier, a capacitive filter, and a digital filter.

[0019] In some embodiments, the signal acquisition module includes one or more of a vibration sensor, a vibration measuring instrument, and a laser vibrometer.

[0020] In some embodiments, the conversion module includes one or more of an analog-to-digital converter, an analog-to-digital conversion circuit, and an analog-to-digital conversion chip.

[0021] In some embodiments, the transmission module includes one or more of a USB Type-A interface, a USB Type-C interface, and a USB Micro-B interface.

[0022] Beneficial effects of the embodiment of the utility model: Different from the prior art, the automobile parts noise vibration detection device provided by the embodiment of the utility model includes: a shell, and a signal acquisition module, a conversion module and a transmission module arranged on the shell, wherein the conversion module is electrically connected to the signal acquisition module and the transmission module respectively; the signal acquisition module is arranged on the part to be detected of the automobile, and the signal acquisition module is used to collect the first vibration signal generated by the part to be detected, wherein the first vibration signal is an analog voltage signal; the conversion module is used to convert the first vibration signal into a second vibration signal, wherein the second vibration signal is a digital voltage signal; the transmission module is used to transmit the second vibration signal to an electronic device, so that the electronic device processes the second vibration signal to obtain the detection result of the part to be detected. The detection device is compact and light, has low manufacturing cost, is easy to carry, is convenient to use, and can improve user experience and satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the prior art description. Obviously, the drawings described below only show certain embodiments of the utility model and should not be regarded as limiting the scope of protection. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the structure of the noise and vibration detection device for automobile parts in some embodiments of the utility model;

[0025] Figure 2 It is a disassembly and assembly structure diagram of the noise and vibration detection device for automobile parts in some embodiments of the utility model;

[0026] Figure 3 It is an assembly structure diagram of a noise and vibration detection device for automobile parts in some embodiments of the utility model.

[0027] Description of reference numerals:

[0028] 100. Noise and vibration detection device for automobile parts;

[0029] 10. Housing; 20. Signal acquisition module; 30. Transmission module; 40. Signal amplification module; 50. Signal filtering module;

[0030] 200. Electronic equipment. DETAILED DESCRIPTION

[0031] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The detailed description of the embodiments of the utility model in the drawings below does not limit the scope of protection claimed by the utility model, but only represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a centered element at the same time. The terms "vertical", "horizontal", "left", "right", "first", "second", "third" and other similar expressions used in this specification are only for the purpose of convenience of explanation and to distinguish between the same items or similar items with basically the same functions and effects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "multiple" refers to a number of two or more, unless otherwise clearly and specifically limited. In addition, although the functional module division is performed in the device schematic diagram, structural schematic diagram and other figures, in some cases, it can be divided into modules different from those in the device or structure.

[0033] Unless otherwise defined, the technical terms and scientific terms used in this specification have the same meanings as those generally understood by those of ordinary skill in the technical field of the present utility model. The terms used in this specification are only for the purpose of describing specific implementations and are not used to limit the present utility model. The term "and / or" used in this specification includes any and all combinations of one or more related listed items. It should be understood that the technical features involved in each implementation of the present utility model described below can be combined with each other as long as there is no conflict.

[0034] See also Figure 1 , Figure 1 This is a schematic structural diagram of an automobile component noise and vibration detection device 100 provided in some embodiments of the present utility model.

[0035] like Figure 1 As shown, the automobile parts noise vibration detection device 100 includes: a housing 10, and a signal acquisition module 20 and a conversion module ( Figure 1The signal acquisition module 20 is arranged outside the housing 10, and the transmission module 30 is fixedly mounted on the housing 10; the conversion module is arranged inside the housing 10, so that the housing 10 can be used to protect the conversion module. The conversion module is electrically connected to the signal acquisition module 20 and the transmission module 30 respectively.

[0036] The signal acquisition module 20 is detachably connected to the housing 10, that is, the signal acquisition module 20 is a detachable component and can be flexibly arranged on any component to be detected of the automobile. The signal acquisition module 20 is used to collect the first vibration signal generated by the component to be detected of the automobile after being installed on the component to be detected of the automobile, wherein the first vibration signal is an analog voltage signal.

[0037] In some embodiments, the signal acquisition module 20 can be one or more of a vibration sensor, a vibration measuring instrument, and a laser vibrometer. By detachably setting the signal acquisition module 20, it is convenient to carry and use. The signal acquisition module 20 is used to flexibly acquire automobile noise and vibration signals, which can improve the user experience and satisfaction. It is understandable that the signal acquisition module 20 can also be other suitable components, and the embodiment of the utility model does not impose any restrictions on this.

[0038] The conversion module is used to convert the first vibration signal acquired by the signal acquisition module 20 into a second vibration signal, wherein the second vibration signal is a digital voltage signal. That is, the vibration signal generated by the component to be detected is converted from an analog voltage signal to a digital voltage signal, so as to facilitate processing to obtain the detection result.

[0039] In some embodiments, the conversion module can be one or more of an analog-to-digital converter, an analog-to-digital conversion circuit, and an analog-to-digital conversion chip. By setting and utilizing the conversion module, the analog voltage vibration signal acquired is converted into a digital voltage vibration signal that is easy to process, and the signal processing efficiency can be improved. It is understandable that the conversion module can also be other suitable components, and the embodiment of the utility model does not impose any restrictions on this.

[0040] The transmission module 30 is used to transmit the second vibration signal to the electronic device 200. After the first vibration signal is converted by the conversion module to obtain the second vibration signal, the second vibration signal is transmitted to the electronic device 200 by using the transmission module 30. After the electronic device 200 receives the second vibration signal, it processes the second vibration signal to obtain the detection result of the component to be detected.

[0041] In some embodiments, the transmission module 30 can be one or more of a USB Type-A interface, a USB Type-C interface, and a USB Micro-B interface. By setting one or more different data transmission interfaces, a suitable interface can be selected according to actual needs to achieve safe and efficient signal transmission. It is understandable that the transmission module 30 can also be other suitable components, and the embodiment of the utility model does not impose any limitation on this.

[0042] When it is necessary to perform noise and vibration detection on automobile parts, the signal acquisition module is installed on the automobile parts to be detected to form contact with the parts to be detected so as to detect and obtain the analog voltage vibration signal generated by the parts to be detected, and then the analog voltage vibration signal is converted into a digital voltage vibration signal that is easy to process through the conversion module. The digital voltage vibration signal is transmitted to the electronic device through the transmission module. After receiving the digital voltage vibration signal, the electronic device processes the digital voltage vibration signal to obtain the detection result of the parts to be detected.

[0043] The automobile parts noise and vibration detection device provided by the embodiment of the utility model acquires automobile noise and vibration signals by means of a detachable signal acquisition module, and is convenient to carry and use. The detection device is small and light, has a low manufacturing cost, and can improve user experience and satisfaction.

[0044] See also Figure 2 and Figure 3 , Figure 2 and Figure 3 They are respectively a schematic diagram of the disassembly structure and a schematic diagram of the assembly structure of an automobile component noise and vibration detection device 100 provided in some embodiments of the utility model.

[0045] like Figure 2 As shown, in some embodiments, the automobile component noise and vibration detection device 100 further includes a signal amplification module 40. Specifically, the signal amplification module 40 is disposed in the housing 10, so that the housing 10 can be used to protect the signal amplification module 40.

[0046] The signal amplification module 40 is respectively connected to the signal acquisition module 20 and the conversion module ( Figure 2 The signal amplification module 40 is electrically connected to the first vibration signal generated by the component to be detected and acquired by the signal acquisition module 20, and amplifies the first vibration signal to obtain an amplified first vibration signal. After obtaining the amplified first vibration signal, the amplified first vibration signal is converted into a second vibration signal by using the conversion module, that is, the amplified analog voltage vibration signal is converted into a digital voltage vibration signal.

[0047] In some embodiments, the signal amplification module 40 can be one or more of a capacitive piezoelectric microphone, a vibration amplifier, and a vibration analyzer. Among them, a capacitive piezoelectric microphone (Integrated Circuit Piezoelectric, ICP) microphone is a microphone that uses integrated circuits and piezoelectric sensor technology, also known as a piezoelectric microphone with an amplifier. An ICP microphone uses the piezoelectric effect to convert sound pressure into a charge or voltage signal. An ICP microphone includes a piezoelectric sensor (such as piezoelectric ceramics) and a built-in amplifier circuit for amplifying the weak signal output by the sensor to a measurable or processable level.

[0048] ICP microphones have the advantages of high sensitivity, wide frequency response, built-in amplifier, etc. They can capture extremely low frequency to high frequency, small and weak sound signals. ICP microphones can be directly connected to data acquisition equipment or audio processing equipment, etc., simplifying system design and installation.

[0049] It is understandable that the signal amplifying module 40 may also be other suitable components, and the embodiment of the utility model does not impose any limitation on this.

[0050] like Figure 2 As shown, in some embodiments, the automobile component noise and vibration detection device 100 further includes a signal filtering module 50. Specifically, the signal filtering module 50 is mounted on the housing 10, and the housing 10 is used to fix the signal filtering module 50.

[0051] The signal filtering module 50 is respectively connected to the signal acquisition module 20 ( Figure 2 The first vibration signal generated by the component to be detected and acquired by the signal acquisition module 20 is filtered by the signal filtering module 50 to obtain a filtered first vibration signal. After obtaining the filtered first vibration signal, the signal amplification module 40 is used to sample and amplify the filtered first vibration signal to obtain an amplified first vibration signal, and then the conversion module is used to convert the amplified first vibration signal into a second vibration signal, that is, to convert the amplified analog voltage vibration signal into a digital voltage vibration signal.

[0052] In some embodiments, the signal filtering module 50 can be one or more of a differential amplifier, a capacitor filter, and a digital filter. By setting and utilizing the signal filtering module 50 to filter the first vibration signal acquired, the interference signal is filtered out, and a relatively pure vibration signal is obtained, which is conducive to improving the accuracy of automobile noise vibration signal detection. It is understandable that the signal filtering module 50 can also be other suitable components, and the embodiment of the utility model does not impose any limitation on this.

[0053] When it is necessary to perform noise and vibration detection on automobile parts, the signal acquisition module is installed on the automobile parts to be detected to form contact with the parts to be detected so as to detect and obtain the analog voltage vibration signal generated by the parts to be detected, and the collected analog voltage vibration signal is filtered by the signal filtering module to obtain the filtered analog voltage vibration signal; then the filtered analog voltage vibration signal is sampled and amplified by the signal amplification module to obtain the amplified analog voltage vibration signal; then the amplified analog voltage vibration signal is converted into a digital voltage vibration signal that is easy to process by the conversion module, and finally the converted digital voltage vibration signal is transmitted to the electronic device by the transmission module, and after receiving the digital voltage vibration signal, the electronic device processes the digital voltage vibration signal to obtain the detection result of the parts to be detected.

[0054] The automobile parts noise and vibration detection device provided by the embodiment of the utility model acquires automobile noise and vibration signals by means of a detachable signal acquisition module, and is convenient to carry and use. The detection device is small and light, has a low manufacturing cost, and can improve user experience and satisfaction.

[0055] It should be noted that the above-mentioned technical features can be used in any combination without limitation. The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to more clearly understand the technical features, purposes and effects of the utility model and implement them accordingly. They cannot be used to limit the scope of protection of the rights of the utility model. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the utility model, or directly or indirectly used in other related technical fields, should be included in the scope of protection of the claims of the utility model.

Claims

1. A noise and vibration detection device for automobile parts, characterized in that: include: A housing, a signal acquisition module, a conversion module and a transmission module, wherein the signal acquisition module is arranged outside the housing, the conversion module is arranged inside the housing, the transmission module is fixedly mounted on the housing, and the conversion module is electrically connected to the signal acquisition module and the transmission module respectively; The signal acquisition module is arranged on the to-be-detected component of the automobile, and is used to acquire a first vibration signal generated by the to-be-detected component, wherein the first vibration signal is an analog voltage signal; The conversion module is used to convert the first vibration signal into a second vibration signal, where the second vibration signal is a digital voltage signal; The transmission module is used to transmit the second vibration signal to the electronic device, so that the electronic device processes the second vibration signal to obtain the detection result of the component to be detected.

2. The device according to claim 1, characterized in that The device also includes: a signal amplifying module disposed in the housing, the signal amplifying module being electrically connected to the signal acquisition module and the conversion module respectively, and the signal amplifying module being used to sample and amplify the first vibration signal to obtain an amplified first vibration signal; The conversion module is used to convert the amplified first vibration signal into a second vibration signal.

3. The device according to claim 2, characterized in that The signal amplification module includes one or more of a capacitive piezoelectric microphone, a vibration amplifier and a vibration analyzer.

4. The device according to claim 2 or 3, characterized in that The device also includes: a signal filtering module disposed on the housing, the signal filtering module being electrically connected to the signal acquisition module and the signal amplification module respectively, and the signal filtering module being used to filter the first vibration signal to obtain a filtered first vibration signal; The signal amplification module is used to sample and amplify the filtered first vibration signal to obtain the amplified first vibration signal.

5. The device according to claim 4, characterized in that The signal filtering module includes one or more of a differential amplifier, a capacitive filter and a digital filter.

6. The device according to claim 5, characterized in that The signal acquisition module includes one or more of a vibration sensor, a vibration measuring instrument and a laser vibrometer.

7. The device according to claim 5, characterized in that The conversion module includes one or more of an analog-to-digital converter, an analog-to-digital conversion circuit, and an analog-to-digital conversion chip.

8. The device according to claim 5, characterized in that The transmission module includes one or more of a USB Type-A interface, a USB Type-C interface, and a USB Micro-B interface.

Images