A passive surface acoustic wave sensing device and smart tire

A sensing device, surface acoustic wave technology, used in tire measurement, tire parts, transportation and packaging

Active Publication Date: 2017-12-15
MESNAC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve various problems existing in the existing active tire pressure sensing device, the present invention proposes a passive surface acoustic wave sensing device

Method used

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  • A passive surface acoustic wave sensing device and smart tire
  • A passive surface acoustic wave sensing device and smart tire
  • A passive surface acoustic wave sensing device and smart tire

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Embodiment 1, this embodiment provides a passive surface acoustic wave sensing device, such as figure 1 As shown, it includes a base 1 and a surface acoustic wave sensor 2, the base 1 and the surface acoustic wave sensor 2 are detachably connected, the base 1 at least includes a circuit board 101 and an antenna 102 arranged on the circuit board 101, Such as figure 2 As shown, it is a front view of the circuit board 101, the circuit board 101 is provided with a contact 103 electrically connected to the antenna 102, as image 3 As shown, the surface acoustic wave sensor 2 has pins 201 corresponding to the contacts 103 one by one, and when installed on the base 1, the pins 201 are electrically connected to the corresponding contacts 103 . The passive surface acoustic wave sensing device of this embodiment utilizes the principle of surface acoustic wave sensing, and is a passive detection device that sends an inquiry signal to it through the outside world. Since the pass...

Embodiment 2

[0035] Embodiment 2, based on the passive surface acoustic wave sensing device in embodiment 1, this embodiment provides a smart tire, including the passive surface acoustic wave sensing device described in embodiment 1, base 1 fixed on the inner surface of the tire.

[0036] Preferably, the base 1 is vulcanized and fixed on the inner surface of the tire.

[0037] As a preferred embodiment, in order to fully expose the pressure-sensitive cover of the surface acoustic wave sensor 2 to the air pressure environment in the tire, and there should be no rubber extrusion at the edge of the metal cover of the surface acoustic wave sensor 2, because it will affect the acoustic pressure. The surface wave sensor 2 senses the pressure, such as Figure 5 As shown, before the base 1 is vulcanized and fixed on the inner surface of the tire, it also includes a metal cover 3 covering the upper surface of the circuit board 101, and the metal cover 3 is provided with a When the metal cover is ...

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Abstract

Disclosed are a patch-type passive surface acoustic wave sensing device and an intelligent tire, wherein the patch-type passive surface acoustic wave sensing device comprises a surface acoustic wave sensor (101) and at least comprises a first rubber sheet (201) and a second rubber sheet (202), the cross section of each of the first rubber sheet (201) and the second rubber sheet (202) is larger than that of the surface acoustic wave sensor (101), the bottom part of the surface acoustic wave sensor (101) is located on the upper surface of the first rubber sheet (201), a first central hole (204) allowing the surface acoustic wave sensor to penetrate therethrough is formed in the centre of the second rubber sheet (202), the surface acoustic wave sensor (101) penetrates the first central hole (204), the second rubber sheet (202) is fixedly connected to the upper surface of the first rubber sheet (201), the surface acoustic wave sensor (101) comprises pins (102) arranged at the bottom thereof, free ends of the pins (102) are connected to an antenna (103), and the antenna (103) and some of the pins (102) are buried in the first rubber sheet (201). The intelligent tire comprises the patch-type passive surface acoustic wave sensing device which is fixed onto the inner wall of the tire. The patch-type passive surface acoustic wave sensing device requires no power supply, has the advantages of a small size and low weight, and has certain abilities of high temperature and high pressure resistance.

Description

technical field [0001] The invention relates to a sensing device, in particular to a passive surface acoustic wave sensing device and an intelligent tire. Background technique [0002] As an early warning system, the tire pressure monitoring system (TPMS) not only provides "pre-active" safety protection, but also effectively prevents tire blowout accidents by monitoring tire pressure and temperature in real time, and can reduce vehicle fuel consumption. Guarantee the performance and lifespan of the whole vehicle, and have economic benefits and environmental protection effects. [0003] The tire pressure sensing device is the main sensor device of the tire pressure monitoring system. At present, the tire pressure sensing devices on the market are generally active, that is, the pressure sensor, power supply, microprocessor, and wireless communication module are integrated and packaged. , Installed on the tire valve or wheel hub. Active sensing devices need to be equipped wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C23/04B60C23/20
CPCB60C23/02G01L11/04
Inventor 袁仲雪郑江家董兰飞韦江波滕学志陈海军祁海波
Owner MESNAC
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