Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile
Patent
1998-05-18
1999-12-28
Gaffin, Jeffrey
Electrical transmission or interconnection systems
Vehicle mounted systems
Automobile
336119, B60L 100, H01F 2106
Patent
active
060085479
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to an arrangement for contactless transmission of signals between a stationary vehicle part and a vehicle part that moves linearly with respect thereto, and--preferably between at least one circuit unit installed on a vehicle body and at least one circuit unit in a vehicle seat displaceably mounted on rails.
BACKGROUND INFORMATION
Various electrical devices are often installed in vehicle seats, such as the driver's seat or the passenger seat, e.g., for heating or adjustment of the seat. The seat may also have electronic circuits for detection of seat occupancy in conjunction with airbag systems. Passenger seats have recently also been equipped with side bags in the armrest of the seat. For all these devices, control or power signals must be transmitted from central circuit units permanently installed on the vehicle body. Therefore, it is advantageous to provide an arrangement that is wear-resistant and transmits with a high reliability signals between a stationary vehicle part and a vehicle part (e.g., a vehicle seat) that moves linearly with respect thereto.
SUMMARY OF THE INVENTION
This object is achieved by providing a repeating coil whose primary and secondary windings are in separate pot-type cores, one of which is mounted on the stationary vehicle part and the other on the movable vehicle part. Both pot cores are designed as rails that slide along one another and have sections so that together they form a closed circuit for the magnetic flux between the primary and secondary windings.
The pot core rails may be designed either as H-sections, L-sections, T-sections or E-sections. These section shapes ensure that assembly tolerances or tolerances in the relative movement of the pot core rails forming the repeating coil have hardly any disturbing effect on signal transmission. Moreover, a plurality of such rail-type repeating coils may also be installed on one vehicle seat when the seat has multiple electrical devices. These repeating coils may be advantageously integrated into the slide rails for the seat.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1a shows a cross section through a repeating coil with H-section pot cores.
FIG. 1b shows a perspective view of the pot cores illustrated in FIG. 1a.
FIG. 1c shows a repeating coil including conically shaped H-section pot cores.
FIG. 2a shows a cross section through a repealing coil having L-section pot cores.
FIG. 2b shows a perspective view of the pot cores illustrated in FIG. 2a.
FIG. 3a shows a cross section through a repeating coil having a T-section pot core and a divided H pot core.
FIG. 3b shows a perspective view of the pot cores illustrated in FIG. 3a.
FIG. 3c shows a cross section through a repeating coil having a T-section pot core and an undivided H-section pot core.
FIG. 4a shows a cross section through a repeating coil having E-section pot cores.
FIG. 4b shows a perspective view of the pot cores illustrated in FIG. 4a.
DETAILED DESCRIPTION OF THE INVENTION
The repeating coil described below has two pot cores designed as rails, in which the primary and secondary windings are accommodated. These pot core rails, one of which is mounted on a stationary vehicle part (e.g., the body) and the other is mounted on a linearly movable vehicle part, slide along one another without coming in contact, while the movable vehicle part undergoes a linear displacement. There is almost no change in the distance (i.e., the air gap) between the two pot core rails during this displacement, so that the inductive coupling between the primary winding and the secondary winding remains constant. Therefore, displacement of the movable vehicle part does not have an interfering effect on the signals transmitted. FIGS. 1 through 4 show exemplary suitable sections for the pot core rails which form a closed circuit for the magnetic flux between the primary and secondary windings.
FIG. 1a shows a cross section through a repeating coil whose pot core rails 1 and 2 have H sections. As shown in FIG. 1b, one H-section rai
REFERENCES:
patent: 4612527 (1986-09-01), Third et al.
patent: 5696409 (1997-12-01), Handman et al.
patent: 5831841 (1998-11-01), Nishino
Dobler Klaus
Dukart Anton
Herrmann Thomas
Zabler Erich
Gaffin Jeffrey
Robert & Bosch GmbH
Roberto Rios
LandOfFree
Arrangement for contactless transmission of signals between vehi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arrangement for contactless transmission of signals between vehi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement for contactless transmission of signals between vehi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2384201