US 12,451,552 B1
Button cell sensor for a motor vehicle wheel
Stéphane Couarraze, Toulouse (FR); Yves Maxch, Pelleport (FR); and Jonathan Lefloch, Toulouse (FR)
Assigned to Continental Automotive Technologies GmbH, Hannover (DE)
Filed by Continental Automotive Technologies GmbH, Hannover (DE)
Filed on May 7, 2025, as Appl. No. 19/201,153.
Claims priority of application No. 2405467 (FR), filed on May 28, 2024.
Int. Cl. H01M 50/264 (2021.01); B60C 23/00 (2006.01); H01M 50/244 (2021.01); H01M 50/249 (2021.01); H01M 50/284 (2021.01); H01M 50/298 (2021.01); H01M 50/109 (2021.01)
CPC H01M 50/264 (2021.01) [B60C 23/00 (2013.01); H01M 50/244 (2021.01); H01M 50/249 (2021.01); H01M 50/284 (2021.01); H01M 50/298 (2021.01); H01M 50/109 (2021.01); H01M 2220/20 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A sensor for a wheel of a motor vehicle, said sensor being configured to be mounted on the rim of said wheel through a valve orifice and comprising:
a casing having an upper part and a lower part, said upper part-having a tubular element configured to be placed in the valve orifice of the rim and to receive the air for inflation of the tire of the wheel,
a printed circuit board mounted in the upper part of the casing and having electronic components making it possible to measure values of at least one parameter relating to the air contained in said wheel,
a button cell mounted in the lower part of the casing and configured to supply electric power to said printed circuit board,
an electrically conductive curved wire spring mounted in the lower part of the casing and configured to hold the button cell in said lower part of the casing,
the lower part of the casing-having an internal surface from which extend at least one support element, configured to support a first face of the button cell, and first holding members and second holding members of the wire spring, the wire spring comprising two branches connected by a central portion and being configured to be positioned in an open position in which the two branches are Buchanan detached from the second holding members, making it possible to insert the button cell on the at least one support element, and a closed position in which the central portion is fastened to the first holding members and the two branches are fastened to the second holding members and in which a first curved portion of each branch and a curved portion of the central portion of the wire spring-bear on the second face of the button cell, which is opposite the first face, and a second curved portion of each branch is in contact with an electrically conductive bearing zone of the printed circuit board so as to conduct the electric current between one of the terminals of the button cell and compress the wire spring when the upper part and the lower part of the casing are assembled with each other and the printed circuit board is placed on the wire spring.