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PVDF film energy collector for automobile tyre state monitoring wireless sensor

A technology of wireless sensors and energy harvesters, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, generators/motors, etc., to achieve the effect of light weight, simple structure and good flexibility

Inactive Publication Date: 2010-06-02
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Using PVDF film sensor to convert vibration energy into electrical energy to solve battery life problem

Method used

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  • PVDF film energy collector for automobile tyre state monitoring wireless sensor
  • PVDF film energy collector for automobile tyre state monitoring wireless sensor
  • PVDF film energy collector for automobile tyre state monitoring wireless sensor

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Embodiment Construction

[0016] The technical scheme of the invention will be described in detail below in conjunction with the drawings:

[0017] The installation process of the present invention is explained in conjunction with the drawings: the present invention can be installed at the same time as the TSM (Tire Condition Monitoring) system is installed, or the installation of the present invention can be integrated into the tire manufacturing process. Whether it is a PVDF film multi-layer structure (generally 3 to 8 layers), bimorph structure or single layer structure, PVDF film, charge control circuit, energy storage circuit, and power output circuit are integrated into one module, which looks like A rectangular soft ribbon structure. Paste the PVDF film power supply module 1 on the inner side of the car tire so that its length is along the radial direction of the tire, as attached figure 2 Shown. The PVDF film power supply module 3 can also be pasted along the inner bottom surface of the tire, wi...

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Abstract

The invention publicizes a PVDF (polyvinylidene fluoride) film energy collector for an automobile tyre state monitoring wireless sensor, which is formed by sequentially connecting a PVDF film in series with a charge control circuit, an energy storage circuit and a power supply output circuit, the PVDF film is pasted on the inner lateral surface of an automobile tyre along the radial direction of the tyre or on the inner bottom surface of the tyre along the circumferential direction of the tyre, and the power supply output circuit supplies electricity to the automobile tyre state monitoring wireless sensor. The PVDF film energy collector has simple, compact and reasonable structure, can be used for a long time, and can save energy and protect environment.

Description

Technical field [0001] The invention relates to a PVDF film energy harvester used for wireless sensors for monitoring the state of automobile tires, belonging to the field of piezoelectric energy conversion. Background technique [0002] The function of the automobile tire condition monitoring system is to carry out real-time automatic monitoring of tire pressure, temperature, deformation, etc. during the driving process of the automobile, and to alarm tire leaks and low pressure to ensure driving safety. Its working principle is: a built-in sensor is installed on the tire die. The sensor includes a bridge-type electronic air pressure sensing device that senses air pressure. It converts the air pressure signal into an electrical signal and transmits the signal through a wireless transmitting device. Some tire monitoring sensors also include the function of measuring temperature, strain, acceleration and other parameters to provide more safety information for car driving. The sen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18
Inventor 陈仁文唐海洋朱莉娅
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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