The invention discloses an internal tyre pressure detection device which comprises a ball-shaped shell, wherein the surface of the ball-shaped shell is provided with a blank hole and a sensor installing groove; an installation shell is arranged in the blank hole by the matching of a thread; a wireless emitter, a rechargeable battery and a miniature vibration motor are arranged in the installation shell in sequence from top to bottom; the miniature vibration motor is electrically connected with the rechargeable battery which is electrically connected with a microprocessor. During use, the device is arranged in a tyre of a car, when vibration is generated during running of a loaded car, the miniature vibration motor generates electricity due to vibration to charge the rechargeable battery; an air pressure sensor positioned in the sensor installing groove monitors air pressure in the tyre all the time and can send the pressure values by the wireless emitter; the ball-shaped shell can roll in the tyre without being pasted on the inner surface of the tyre, so that the problem of falling off due to long time use is solved, and simultaneously the problem that no reliable charging devices are arranged in the tyre is solved.


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    Title :

    Internal tyre pressure detection device


    Contributors:

    Publication date :

    2015-09-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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