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Door handle device

A door handle and conductive member technology, which is applied in the directions of wing leaf handles, spherical handles of wing leaves, door/window accessories, etc., can solve the problems of weakening the antenna performance and reducing the communication range of the antenna, etc.

Active Publication Date: 2007-10-03
HONDA LOCK MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This eddy current in turn creates a magnetic flux which tends to cancel the antenna flux, which impairs the performance of the antenna (or creates problems such as reducing the communication range of the antenna)

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] Referring to Fig. 1 and Fig. 2, door handle device 1 comprises: the handle base 3 that is fixedly installed on the outer surface of the outer panel 2 of automatic door; Key slot 6 in base 3.

[0027] Referring to FIGS. 2 to 4 , the door handle 5 includes an antenna / sensor unit 7 , and a handle body 8 and a housing 9 in which the antenna / sensor unit 7 is accommodated. The antenna / sensor unit 7 includes a circuit board 10 arranged on the side of the handle main body 8, an antenna coil 11 and circuit components 12 and 13 mounted on the side of the circuit board 10 facing the housing 9, and connected to the circuit board by a wire harness 14. 10 of the lock sensor 15 . In the illustrated embodiment, the circuit board 10 is formed in the shape of an elongated rectangle having a pair of mutually parallel sides so as to be snugly received within the hollow interior of the door handle 5 .

[0028] Referring to FIG. 2, an antenna coil 11, circuit members 12 and 13, and a part ...

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Abstract

Provided is a door handle device incorporated with an antenna that can prevent the magnetic flux produced from the electro-conductive members from impairing the performance of the antenna. The door handle device comprises an antenna coil 11 for external communication formed by winding copper wire and a circuit board 10 including a ground pattern 32 and detection electrode patterns 33 and 34 that are received in a door handle 5, and the ground pattern 32 and detection electrode patterns 33 and 34 are each provided with a plurality of slits 32S, 33S and 34S extending in parallel with an axial line A around which the antenna coil 11 is wound. The provision of the slits prevents generation of eddy current in each electro-conductive pattern which otherwise would interfere with the performance of the antenna.

Description

technical field [0001] The present invention relates to a door handle arrangement suitable for use as part of an intelligent entry system for motor vehicles and buildings. Background technique [0002] More and more motor vehicles are equipped with a smart key system that enables a vehicle driver to unlock the doors and start the engine just by carrying a smart key (electronic key) on his or her person, thereby improving the convenience and safety of the vehicle sex. The main body (on-board unit) of the smart entry system is provided with a capacitive sensor configured to detect the hand of the driver of the vehicle holding or approaching the door handle. Upon detecting the vehicle driver's hand, the on-board unit communicates with the smart key through the antenna incorporated in the door handle, and unlocks the door when the ID code transmitted from the smart key matches the ID code stored in the ROM of the on-board unit . Generally, in a vehicle equipped with a smart e...

Claims

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Application Information

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IPC IPC(8): E05B1/00E05B49/00
Inventor 富士原泰斗乙田祐邦栗山和幸
Owner HONDA LOCK MFG CO LTD
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