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Automobile ultrasonic sensor

A sensor and ultrasonic technology, applied in the field of automotive electronic equipment, can solve problems such as false alarms, large size, and poor anti-interference ability of the system, and achieve the effects of improving reliability, reducing design requirements, and increasing aesthetics

Inactive Publication Date: 2007-09-12
余晓鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an ultrasonic sensor, which overcomes the technical problems of large size, poor anti-interference ability of the system, and frequent malfunctions such as false alarms in the background technology.

Method used

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  • Automobile ultrasonic sensor
  • Automobile ultrasonic sensor
  • Automobile ultrasonic sensor

Examples

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Embodiment Construction

[0032] Please refer to Figure 1A, Figure 1B, Figure 2 and Figure 3, an ultrasonic sensor, which includes a shell 1, a rubber sleeve 2, a rear cover 3, a buckle 4, a sponge block 5, a probe 6, a built-in circuit 7, and a connector 8 and silicone 9.

[0033] Please refer to Fig. 1A, Fig. 2 and Fig. 5A, the shell 1 is in the shape of a sleeve, and the outer peripheral surface of the sleeve is evenly spaced with four buckle grooves 12, the buckle grooves 12 are axial dovetail grooves, and the rear end 12A is connected to the shell 1 rear end face to form an opening, and the tail of the opening is rounded 12C to facilitate insertion. The housing 1 is mainly used to provide an installation carrier for internal components, and to provide a fixing mechanism for the assembly of the ultrasonic sensor on the automobile bumper.

[0034] Please refer to FIG. 1A , FIG. 1B and FIG. 2 , the rear cover 3 is installed on the rear surface of the housing 1 . The outer periphery of the back cove...

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PUM

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Abstract

This invention discloses an ultrasonic transducer, which can be used for reversing radar or forward radar installation of car. The invention at least includes outer shell, back cap, detecting head, inlay electric circuit, connector and card tie. This detecting head links inlay electric circuit by signal, and both of them are installed in out shell. This connector signal links inlay electric circuit, and structure links back cap; periphery of out shell has card tie slot. Periphery of this back cap has card pillar; stated card pillar matches with card tie slot to fix out shell and back cap. Stated card tie matches with card tie slot to fix out shell and card tie. Technique scheme of this invention is of small size, strong system tamper-resistant capability, and it has no abnormal working phenomenon such as mistake warning.

Description

technical field [0001] The invention relates to an automobile electronic device, in particular to an ultrasonic sensor for backing up or moving forward in an automobile. Background technique [0002] At this stage, the vast majority of car reversing radars or forward radars use ultrasonic waves to work, and the basic principle is the same as the echolocation function principle of bats, dolphins and other animals in nature. Sound is a kind of wave. The frequency range of sound that our human ears can hear is generally 20Hz-20KHz. If it exceeds 20KHz, people cannot hear it. It is called ultrasound. The propagation speed of ultrasonic waves in the air is also equal to the speed of sound (340 m / s); when ultrasonic waves encounter obstacles, they will generate echoes, so by calculating the time difference between emission and reception, the distance between the emission site and the obstacle can be calculated. The reversing radar system controls multiple ultrasonic sensors to wo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/08G01S15/93
Inventor 余晓鹏
Owner 余晓鹏