DEVICE FOR ACQUIRING INFORMATION REGARDING THE INSIDE OF A TIRE

• US 20110292630A1
• Filed: 12/08/2009
• Published: 12/01/2011
• Est. Priority Date: 12/09/2008
• Status: Active Grant

• Current Assignee: Bridgestone Corporation
• Original Assignee: Bridgestone Corporation
• Inventors: Yamaguchi, Shigeru
• Granted Patent: US 8,797,762 B2
• Time in Patent Office: Days
• US Class Current: 361/807
• CPC Class Codes: B60C 23/0493 for attachment on the tyre
• CPC Class Codes: G01D 11/245 Housings for sensors
• CPC Class Codes: G01D 21/00 Measuring or testing not otherwise provided for

Abstract

A tire inside information acquiring device (100) attached inside a tire-wheel assembly, includes a housing body (10) configured to house a receiving antenna for receiving a radio signal and an electronic circuit unit connected to the receiving antenna, the electronic circuit unit constitutes the tire inside information acquiring device (100), and a substrate (40) on which the housing body (10) and a component constituting the tire inside information acquiring device (100) are disposed. The housing body (10) is formed of a nonmetallic inorganic material. The component is only formed of parts having water resistance.

Claims

1. A tire inside information acquiring device attached inside a tire-wheel assembly and configured to acquire tire inside information, which is information on the inside of the tire, the tire inside information acquiring device comprising:

an electronic circuit unit;

a housing body configured to house the electronic circuit unit; and

a sealing mean configured to hermetically seal the housing body with no gaps, wherein

the housing body is formed of a nonmetallic inorganic material.

2. The tire inside information acquiring device of claim 1, comprising a sensor configured to detect the tire inside information,

wherein the sensor is provided on an inner wall of the housing body.

3. The tire inside information acquiring device of claim 1, comprising a substrate on which a component constituting the tire inside information acquiring device, and the housing body are disposed,

wherein a gap is formed between the housing body and the substrate.

4. The tire inside information acquiring device of claim 1, comprising:

a substrate on which the housing body and a component constituting the tire inside information acquiring device are disposed; and

an outer housing body configured to house the housing body and the substrate;

wherein

the outer housing body is formed of a nonmetallic material,

the housing body is disposed on one surface of the substrate,

the component is disposed on the other surface of the substrate, and

a sealant is filled in a substrate housing portion with the substrate housed in the outer housing body in a way that the one surface of the substrate is positioned closer to an opening surface.

5. The tire inside information acquiring device of claim 1, wherein

the tire inside information acquiring device is disposed under an environment of a temperature of 40 degrees or above, a state of saturated humidity, and an inner pressure of 500 kPa or above.