Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
  • H01R12/50—Fixed connections
  • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
  • H01R12/592—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connections to contact elements
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R31/00—Coupling parts supported only by co-operation with counterpart
  • H01R31/08—Short-circuiting members for bridging contacts in a counterpart

Definitions

• the invention relates to a bumper system of a motor vehicle, comprising a plurality of sensors arranged in particular on the outer surface of the bumper, these sensors being intended to facilitate the parking.
• the vehicle which may be an automobile, a trailer or the like, is provided with a certain number of sensors, conductors for powering them connected to a suitable electric power source, and conductors inserted between them. sensors and a computer to route the information detected by the sensors.
• sensors and a computer to route the information detected by the sensors.
• Such installations often require several sensors and, consequently, a large bundle of conductors, a beam which it is not always easy to conform given the locations of the sensors.
• the sensors of the bumper conventionally located on the outer surface thereof are all substantially in the same vertical plane, and in particular are substantially aligned along a line perpendicular to the longitudinal direction of the flat cable which connect them to a central system for supplying power and processing information received from the sensors.
• the central power supply and processing system is behind the sensors, that is to say between the two left and right outer planes which each pass through the left end or end sensor respectively. from the plurality of sensors and which are perpendicular to the vertical plane of the sensors. It is desired according to the invention to obtain a simplest connection and the least cumbersome possible via flat cables.
• An object of the invention is to facilitate the realization of the beam.
• Another object of the invention is to reduce these channels.
• a third object of the invention is to provide, in a simple manner, such a sealed connection.
• a bumper system of a motor vehicle is as defined in claim 1. Improvements are subject to claims.
• the tracks corresponding to the power of the sensors are shunted so as to limit the number of channels connected to the power source.
• the tracks corresponding to the transmission of information the sensors are connected to shunted tracks by shunts with cuts.
• the tracks are crimped into female sockets intended to be engaged on male tongues, sensors extending in a skirt, the sockets being mounted in a guiding member intended to cooperate with the internal surface of the skirt. by providing at the rear thereof a free space for receiving a molded plastics thickness.
• the sensors are connected perfectly tight to the tracks of the sheet.
• the guide member comprises fins intended to cooperate with the inner surface of the skirt.
• the overmolded plastic material includes the end of the tracks adjacent to the socket.
• Figure 1 shows in perspective a layer of conductors used for the realization of the installation, according to the invention.
• Figure 2 shows in perspective the cutting and folding of the web.
• Figure 3 shows in perspective the shunting of the sheet to reduce the number of channels.
• Figure 4 and Figure 5 show in section two modes of connection of the web to the sensors.
• a web 1 with two long sides 1a and 1b and having 12 tracks 2 is used.
• the flat ribbon sheet is partly cut to form elements 3, 4, 5 and 6, each having three tracks 2. These elements of three tracks are intended to be each connected to a sensor 7. In this embodiment, it is provided four sensors 7, 7a, 7b and 7c.
• the sensors 7, 7a, 7b and 7c being intended to be fixed on a vehicle bumper to form a part of a parking aid assembly, they are subjected to the weather and must therefore provide a tight connection.
• Figures 4 and 5 show two examples of this connection.
• the sensor 7 is extended at one end by a skirt 8 in which three tongues of contact 9.
• Each sensor 7 has a distal end 17, opposite the tracks 2.
• the distal ends of the sensors are arranged substantially in the same vertical plane. They are also substantially aligned along a line. Preferably, the distal ends 17 are flush with the outer surface of the bumper, they could also be inside or outside this outer surface.
• Each set 3, 4, 5 or 6 receives a plug 10 having three channels 11 in each of which is housed and locked a female electrical contact member 12 crimped on a track 2.
• the plug 10 is housed in a guide member 13 which is inserted with the plug in the skirt 8, A free space 15 being formed at the rear of said skirt, this free space being filled with plastics material 16 for example by overmoulding.
• the portion of the tracks 2 adjacent to the socket 10 is embedded in the plastics material 16 which ensures good holding of the corresponding element at the same time as perfect insulation of the electrical connection members.
• FIG. 5 shows a variant in which the socket 21, which is of the same type as the socket 10 provided in the embodiment of FIG. 4, is housed in a guide member 18 whose end 18a comprises fins 19 intended to cooperate with the inner surface of the skirt in the vicinity of the bottom of the latter to form joints.
• the guide member 18, on the side 18b opposite the end 18a, is extended by a shank 20 pierced with a duct 22 through which a member 3, 4, 5 or 6 passes.
• skirt 8 In the skirt 8 is provided a free space 23 between the guide member 20 and the inner surface of said skirt, space in which is injected plastic 26.
• the element 3 is folded a first time so that a portion 3a extends perpendicular to the edge 1a of the web 1 and a second time so that a portion Ib is disposed parallel to said edge 1a.
• the element 6 is folded a first time to present a portion 6a perpendicular to the edge Ib of the web 1 and a second time so that a portion 6b extends parallel to said edge Ib.
• the element 5 is folded in the same way as the element 6, the part 5a being perpendicular to the edge Ib and the part 5b parallel to this edge.
• the element 4 is folded symmetrically to the element 5.
• the bends may, depending on the sensor locations, be made in a different manner.
• the six central tracks are connected tongues 25, 26, 27, 28, 29 and 30, while are mounted shunts connecting tracks between them.
• the first shunt 31 and the second shunt 32 are intended to supply the sensors and are thus connected to the tongues 27 and 28, while the other tracks, intended to be connected to a computer and intended to route the signals from the sensors, are connected to the tongues 25, 26, 29 and 30.
• the track 2a provided for the routing of the signals from the sensor 7c is, by a bypass 34, connected to a feed track, the latter having a cutoff 36 to isolate from the power supply the portion between the cut and the tongue 30.
• the track 2b which carries the signals from the sensor 7 is, by a bypass 35, connected to a feeding tracks by the shunt 31 with a cut 37 to isolate it from the power supply.
• tabs and shunts to reduce the initial number of tracks from twelve to six, but it could be expected to connect the sheet 1 to an electronic card, which can accommodate electronic management components to reduce the connectivity to a limited number of channels by multiplexing the information given by the sensors.

Applications Claiming Priority (2)

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• 2005
  • 2005-01-17 FR FR0500463A patent/FR2880849B1/fr not_active Expired - Fee Related
• 2006
  • 2006-01-13 WO PCT/FR2006/000074 patent/WO2006075099A1/fr active Application Filing
  • 2006-01-13 EP EP06709081A patent/EP1838556A1/de not_active Withdrawn

Non-Patent Citations (1)

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