Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01Q—ANTENNAS, i.e. RADIO AERIALS
  • H01Q1/00—Details of, or arrangements associated with, antennas
  • H01Q1/12—Supports; Mounting means
  • H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
  • H01Q1/1214—Supports; Mounting means for fastening a rigid aerial element through a wall
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01Q—ANTENNAS, i.e. RADIO AERIALS
  • H01Q1/00—Details of, or arrangements associated with, antennas
  • H01Q1/27—Adaptation for use in or on movable bodies
  • H01Q1/32—Adaptation for use in or on road or rail vehicles
  • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
  • H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk

Definitions

• the invention relates to the field of transmitting / receiving antennas for a motor vehicle and more particularly to the attachment of these antennas.
• Motor vehicles are equipped with at least one antenna to allow transmission and reception of data between the vehicle and a source or receiver outside the vehicle.
• the radio antennas can capture the radio waves relayed by the antennas in order to broadcast, via the radio of the vehicle, a broadcast program.
• the antennas have evolved with the technological advances and make it possible, today, to capture, by radio waves, information sent by satellite, in particular geolocation information to enable navigation assistance.
• the antennas comprise transmitters / receivers and then provide communication between the vehicle and the stations external to the vehicle.
• document EP 1 903 632 discloses a motor vehicle antenna module comprising an external housing, equipped with external radio frequency interfaces for communication with a remote station, and an internal housing, equipped with an internal transmitter / receiver for communication with a station embedded in the vehicle, the housings being assembled on either side of a bodywork element of the vehicle.
• This antenna has some disadvantages.
• the inner housing is attached to the body member by a plurality of fasteners which involves an equal number of holes in the body member.
• the mounting time of the antenna module is increased and the mounting cost is also increased.
• the retrofit is the operation of implanting an antenna module on a vehicle already commercialized or conversely, to mount a radio antenna (including inner and outer housings of dimensions significantly lower) instead of a module as described in EP 1 903 632.
• a first objective is to provide an antenna module easy to mount on a motor vehicle.
• a second objective is to provide an easy maintenance antenna module.
• a third objective is to provide an antenna module for retrofitting from or to a simpler antenna type radio.
• a motor vehicle antenna module comprising an outer housing, equipped with external radio frequency interfaces for communication with remote stations, and an internal housing, equipped with radio transmitters. receivers for communication with on-board and remote stations of the vehicle, the boxes being assembled on either side of a bodywork element of the vehicle, wherein
• the outer housing comprises a protruding pin having at least one conductive section connected to the external radio frequency interfaces and at a free end a threaded section;
• the inner casing comprises a pin complementary to the conductive section of the pin, this pin being connected to the internal transceiver;
• the module comprises a nut screwed on the threaded section of the pin of the outer casing, over the pin, to secure the inner casing to the outer casing.
• Such an antenna module is easily adaptable to a vehicle already marketed and provided with a radio antenna. Indeed, to fix the antenna module, it will not be necessary to enlarge the hole of the existing bodywork element, only part of the piece to pass through the bodywork element, the pin serving both to the mechanical and electrical connection between the outer casing and the inner casing of the antenna module.
• the conductive section comprises conductors coming into contact with terminals integral with the pin to provide electrical continuity between the outer housing and the inner housing; the conductive section comprises at least four conductors and the pin comprises at least four terminals;
• the outer casing comprises an outer shell and an outer support closing the outer shell, the pin and the radio frequency interfaces being mounted on the external support;
• the external support comprises a bore to allow the passage of the pin
• the external support comprises a keying hole
• the pin comprises a lug adapted to be housed in the key hole of the external support to ensure the positioning of the pin on the external support;
• the inner housing comprises a cavity, open on the outside of the inner housing, in which is housed the nut;
• the pin is mounted in the inner housing between an upper wall of the inner housing and a bottom wall of the cavity.
• Figure 1 is a perspective view from the rear of a motor vehicle comprising an antenna module
• Figure 2 is an exploded view of the antenna module
• Figure 3 is a sectional view of the assembled antenna module, including detail medallions.
• FIG. 1 a vehicle 1 automobile comprising an antenna module 2 for communication between a station 3 embedded in the vehicle, on the one hand, and a remote station 4 on the other.
• remote station 4 is meant a relay or any other transmission and reception point distinct from the vehicle 1, the remote station 4 being fixed (radio building or relay antenna for example) or mobile (transmission vehicle by example).
• embedded station 3 means an on-board computer, a navigation system, or a computer or several mobile equipment owned by the occupants of the vehicle for example, housed in the vehicle 1 and having an indirect interaction (in the case of the computer) or direct (in the case of the navigation system or the on-board computer) with an occupant of the vehicle 1.
• the antenna module 2 comprises an external box 5, equipped with external radio frequency interfaces 6 for communication with the remote station 4, and an internal box 7, equipped with transceivers 8 for communication with stations. 3 on board and away from the vehicle 1.
• the housings 5, 7 are assembled on either side of an element 9 of the vehicle body 1, and, in the embodiment shown in the figures, on either side of a plate of roof.
• the antenna module 2 could be implanted on a trunk lid or on a wing-top of the vehicle 1.
• the outer housing 5 comprises a pin 10, projecting, having at least one conductive section 11 connected to the external radio frequency interface 6, and at a free end, a threaded section 12;
• the internal casing 7 comprises a pin 13 complementary to the conductive section 11 of the pin 10, this pin 13 being connected to the internal transceiver 8, and
• the module 2 comprises a nut 14 screwed onto the threaded section 12 of the pin 10 of the outer casing 5, over the pin 13, to secure the inner casing 7 to the outer casing 5.
• the connection of the pin 10 to the external radio frequency interface 6 and the pin 13 to the transceiver 8 internal is by means of electric cables or electrical pads, however it could be achieved by a wireless link .
• the peg 10 is a part of revolution comprising an annular upper part 15, an intermediate part 16 (represented by a honeycomb hatch in FIG. conical shape carrying the conductive section 11, located under the upper portion, and a lower portion 17, located under the intermediate portion 16, forming the free end with the threaded section 12.
• the pin 10 further comprises at least one lug 18 projecting from the upper annular portion 15 towards the lower portion 17.
• This pin 18 is used in particular, as will be explained below, to ensure the correct positioning of the pin 10 in the outer casing 5.
• the outer housing 5 comprises an outer shell 19 and an outer support 20 closing the outer shell 19, the pin 10 and the transmitter / receiver being mounted on the outer support 20 .
• the external support 20 comprises a bore 22 to allow the passage of the pin 10 and a keying hole adapted to receive the lug 18 of the pin 10 to ensure the positioning of the pin 10 on the external support 20 (or any other type indexing, clipping, buckling or screwing).
• the outer support 20 comprises two keying holes 23, the pin 10 then comprising two lugs 18.
• the conductive section 11 comprises conductors 24 coming into contact with terminals 25 integral with the pin 13. More particularly, the conductive section 11 comprises four conductors 24 and the pin 13 comprises four terminals 25.
• the conductors 24 and the terminals 25 are formed by tracks having a noble metal substrate (under layer of copper / nickel with silver or gold to ensure good electrical contact ), respectively integral with the conductive section 11 of the pin 10 and a frustoconical portion of the pin 13.
• the terminals 25 have a width greater than that of the conductors 24 so as to prevent a slight defect orientation of the pin 10 during assembly of the antenna module 2.
• the inner casing 7 also comprises a cavity 26 open on the outside of the inner casing 7, into which the nut 14 is housed.
• This cavity 26 is of substantially circular shape and comprises an inside diameter sufficiently large for leave the passage of a tool - such as a pipe wrench, for access to the nut 14.
• the pin 13 is mounted in the inner casing 7 between an upper wall 27 of the inner casing 7 and a bottom wall 28 of the cavity 26. Thus, the pin 13 is locked in its position so that the terminals 25 are oriented relative to the inner housing 7 and the outer housing 5, the orientation of the outer housing 5 and the inner housing 7 being defined with respect to the body member 9.
• the outer housing 5 may be provided with a lug projecting from a lower face of the support 20, this lug being received in a hole made on the element 9. bodywork to prevent rotation of the outer housing 5 relative to the body element 9.
• this step can be performed during the manufacture of the vehicle 1;
• the antenna module 2 which has just been described has many advantages, among which:
• retrofit possibility the retrofit consisting in implanting an antenna module 2, as just described, on a vehicle 1 already commercialized or the replacement of an antenna module 2, as it comes from to be described, by a radio antenna, this possibility being granted by the fact that the vehicles 1 already marketed have a hole for fixing a radio antenna, this hole being identical to that necessary for the passage of the pin 10 through the element 9 of bodywork.

Landscapes

• Engineering & Computer Science (AREA)
• Remote Sensing (AREA)
• Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
• Support Of Aerials (AREA)
• Details Of Aerials (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=51168044

Family Applications (1)

Country Status (4)

Cited By (1)

Citations (7)

Family Cites Families (1)

• 2014
  • 2014-03-14 FR FR1452128A patent/FR3018636B1/fr active Active
• 2015
  • 2015-02-27 CN CN201580014024.5A patent/CN106104912B/zh active Active
  • 2015-02-27 EP EP15711262.4A patent/EP3117481B1/fr active Active
  • 2015-02-27 WO PCT/FR2015/050486 patent/WO2015136178A1/fr active Application Filing

Patent Citations (7)

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