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Wheel bearing apparatus having wireless sensor

A wireless sensor and bearing device technology, applied in bearing assembly, rotating bearings, bearings, etc., can solve the problems of power supply efficiency reduction, power supply efficiency reduction, fuel consumption reduction, etc., to achieve improved spatial freedom and good efficiency Effect

Inactive Publication Date: 2006-11-01
NTN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, if there is an obstacle in the middle as mentioned above, the efficiency of power supply will decrease
Decrease in power supply efficiency affects fuel consumption reduction

Method used

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  • Wheel bearing apparatus having wireless sensor
  • Wheel bearing apparatus having wireless sensor
  • Wheel bearing apparatus having wireless sensor

Examples

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Effect test

Embodiment Construction

[0025] The following is based on figure 1 ~ Fig. 3, describe the first embodiment of the present invention. The bearing device 10 for a wheel with a wireless sensor includes an outer part 1 having a plurality of rows of track surfaces 1a, 1b on the inner periphery of the outer part 1; The track surfaces 2a, 2b of the rows of track surfaces 1a, 1b; multiple rows of rolling bodies 3, the multiple rows of rolling bodies 3 are interposed between the facing track surfaces 1a, 2a, 1b, 2b, and the wheel bearing device 10 is The wheels are supported on the vehicle body in a rotatable manner. Both axial ends of the bearing space between the outer member 1 and the inner member 2 are sealed by seal members 21 , 22 . A flange 1 c is provided on the outer periphery of the outer member 1 , and the outer member 1 is attached to the vehicle body via a knuckle 11 . The knuckle 11 is fitted to the outer periphery of the inner end of the outer member 1, and the fitted portion is attached to ...

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PUM

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Abstract

A wheel bearing apparatus having a wireless sensor wherein the spatial flexibility of the fixing positions of the components necessary for wireless communication can be increased, thereby providing an effective wireless electric power supply or an effective transmission / reception of sensor signals. There are provided a sensor part (6) for sensing a subject to be sensed, a sensor signal transmission part (9) and an electric power reception part (8) for receiving an operation electric power by wireless. At least antennas (8a,9a)in both or one of the sensor signal transmission part (9) and electric power reception part (8) are located to a knuckle (11). The sensor part (6), sensor signal transmission part (9) and electric power reception part (8) may be fixed to the knuckle (11) as an integral wireless sensor unit (4). Alternatively, the sensor part (6) may be fixed to the knuckle (11) as a discrete unit, while the sensor signal transmission part (9) and electric power reception part (8) may be fixed to the knuckle (11) as an integral transmitting / receiving unit.

Description

technical field [0001] The present invention relates to a bearing device for a wheel with a wireless sensor which can wirelessly transmit detection signals such as the number of revolutions and perform wireless power supply. Background technique [0002] The following wireless ABS (anti-lock brake system) sensor has been proposed. In the sensor, the signal of the rotation sensor mounted on the bearing device for the wheel is transmitted wirelessly, and there is no wire between the wheel and the vehicle body (for example, JP Unexamined Document No. 2002-264786). The rotary sensor uses a multi-pole rotary generator, which generates power by itself to obtain power for sensing and power for the transmission unit. This also eliminates the need for wiring for feeding power from the vehicle body to the rotation sensor. By performing wireless processing in this way, advantages such as light weight, improved assemblability, and failure of wire breakage due to flying stones can be o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60B35/18G01P3/487F16C19/18F16C19/52F16C41/00F16D3/20G08C17/02
CPCF16C19/186F16C19/187F16C41/007F16C41/008F16C2326/02
Inventor 佐桥弘二佐佐木纪彦
Owner NTN CORP
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