Remote-control device, particularly remote-control central lock for motor vehicles

• US 20050146465A1
• Filed: 12/05/2002
• Published: 07/07/2005
• Est. Priority Date: 02/28/2002
• Status: Active Grant

• Current Assignee: Kathrein Automotive GmbH (Continental AG)
• Original Assignee: Kathrein-Werke KG. (Kathrein SE)
• Inventors: Slimani, Mohamed, Mossmer, Gunther, Prassmayer, Peter
• Granted Patent: US 7,358,904 B2
• Time in Patent Office: Days
• US Class Current: 343/700.MS
• CPC Class Codes: G07C 9/00182 operated with unidirectional data transmission between data carrier and locks
• CPC Class Codes: H01Q 1/242 specially adapted for hand-held use
• CPC Class Codes: H01Q 1/3241 particular used in keyless entry systems
• CPC Class Codes: H01Q 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142

Abstract

Disclosed is a remote-control device, particularly a remote-control central lock for motor vehicles, comprising an electrical device (3) which is preferably mounted in a housing (5) and an antenna (7). The inventive remote-control device is further characterized by the following: the antenna (7) is configured a) as a bendable antenna (7) that is dimensionally stable in the bent shape, and/or b) as a stiff antenna (7), and/or c) as an antenna (7) which is fixed to and maintained above a rigid and/or dimensionally stable base (5′) or housing (5): the antenna (7) is in a predefined position relative to the electrical device (3) and/or the housing (5) receiving or the base (5″) supporting said electrical device (3): and—the electrical device (3) and the antenna (7) are embodied as a as a combined device (1) in the form of an assembly operated as a single unit.

Claims

1. A remote-controlled device, in particular a remote-controlled central locking system for motor vehicles, having an electrical device which is preferably accommodated in a housing, and having an antenna, having the following features:

the antenna is composed of an antenna which is fastened to a secure and/or dimensionally stable carrier and secured above it,

the antenna is located in a position which is predefined with respect to the electrical device and/or in a position which is predefined with respect to the housing which receives the electrical device, or a carrier which secures the electrical device, and

the electrical device and the antenna are embodied as a component which can be handled as a single unit, in the form of a combination device, characterized by the following further feature;

the antenna is composed of an inverted F antenna,

the inverted F antenna is formed from a wire or a stranded conductor or as a remaining conductive layer on a printed circuit board,

the carrier is composed of a base plate, and

the inverted F antenna is formed on the base plate so as to extend in a position parallel thereto.

2. The radio-controlled device as claimed in claim 1, characterized in that the antenna and the electrical device are connected permanently without plug-type contacts.

3. The radio-controlled device as claimed in claim 1, characterized in that a carrier or the base plate project beyond the housing, and in that the inverted F antenna is provided on the carrier which projects beyond the housing or on the section of the base plate which projects beyond the housing.

4. The radio-controlled device as claimed in claim 1, characterized in that securing elements, by means of which the inverted F antenna which is in wire form is positioned in a strictly predefined position and secured, are formed on the housing and/or carrier or on the base plate.

5. The radio-controlled device as claimed in claim 1, characterized in that the inverted F antenna comprises, in plan view, in an antenna section which is routed in a U-shape at least round parts of the housing at a distance therefrom.

6. The remote-controlled device as claimed in claim 1, characterized in that the inverted F antenna is embodied as a conductor track on a printed circuit board.

7. The remote-controlled device as claimed in claim 3, characterized in that the carrier or the base plate is formed by the printed circuit board on which the inverted F antenna is formed.