JP2007137249A - Signal transmitter/receiver of door for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To transmit and receive a signal by being superimposed on a power supply line by using a power line communication module. <P>SOLUTION: A slide door 2 is supported by upper and lower sliding mechanisms 3, 4 relative to a vehicle body 1, and can be opened and closed to the right and left. Power line communication modules 6, 7 are disposed on a vehicle body 1 side and a slide door 2 side. The sliding mechanisms 3, 4 are used as the power supply line, the power line communication modules 6, 7 are connected through the sliding mechanisms 3, 4, and the signal is superimposed along with the power supply to transmit and receive the signal at the vehicle body 1 side and the slide door 2 side. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a signal transmission / reception device for a vehicle door.

For example, in an automobile door (hereinafter, also referred to as a vehicle door), power supply, signal transmission, or signal transmission from the door side for power window operation, lamp lighting, etc. In general, a battery and a main device are disposed on the vehicle body side, and electrical components are disposed on the door side.
And in this door for vehicles, it is necessary to distribute many flexible electric wires around the hinge mechanism, and to energize.

For example, even with a sliding door, as the number of devices to be mounted increases, the number of electric wires increases, and in order for the sliding door to move horizontally, usually a plurality of flexible electric wires are used. For example, a surplus length absorbing mechanism that absorbs the surplus length of the electric wire connecting the vehicle body side and the slide door side as the slide door moves as in Patent Document 1 is used.
Patent Document 2 proposes an in-vehicle acoustic system that transmits audio data to an amplifier or a speaker using a coaxial cable or the like in a vehicle.

JP 11-348683 A JP 2004-72698 A

  However, if the number of signals is large, there is a problem that as many electric wires as necessary are required, and troubles such as entanglement and disconnection of the electric wires are likely to occur. At least an electric wire for signal transmission (flexible electric wire, coaxial cable, etc.) has to be disposed between the door and the vehicle body.

  An object of the present invention is to provide a signal transmission / reception device for a vehicle door that solves the above-described problems and supplies power through a power supply line and transmits / receives signals using a power line communication module.

In order to achieve the above object, the technical feature of the signal transmission / reception device for a vehicle door according to the present invention is that power is supplied from the vehicle body to the door side by a power supply line, and further between the vehicle body side and the door side. In the signal transmission / reception apparatus for a vehicle door that transmits and receives signals, the vehicle body side and the door side each include a power line signal module, and the power line signal module performs transmission and reception by superimposing the signal on the power supply line. That is.
In this vehicle door signal transmitter / receiver, power line signal modules are arranged on the vehicle body side and the door side, respectively, and signals are superimposed on the power supply line for transmission / reception. There is no need for wiring, and various operations and signal exchanges can be performed between the vehicle body and the door with a simple wiring configuration or electrical connection structure with only a power supply line.

  The vehicle door signal transmitting / receiving apparatus according to the present invention is characterized in that the door is a sliding door. In other words, in this signal transmission / reception device for a vehicle door, power line communication is performed using an electrode supply line, so that the wiring structure can be simplified, and the entire door slides to make a complicated wiring structure difficult to install. Is preferred.

  In the vehicle door signal transmitting / receiving apparatus according to the present invention, the power supply line is a cable having a conductor covered with an electromagnetic wave shielding layer. That is, in this signal transmission / reception device for a vehicle door, since a cable in which a conductor is covered with an electromagnetic wave shielding layer is used as a power supply line, it is possible to prevent noise from being superimposed on the signal and to perform highly reliable transmission / reception.

  According to the signal transmission / reception device for a vehicle door according to the present invention, since the signal is superimposed on the power supply line using the power line communication module disposed on the vehicle body and the door, a large number of signals are provided between the vehicle body and the door. It is not necessary to wire the signal lines in a complicated manner, and various signals can be transmitted and received with a simple wiring configuration or electrical connection structure.

  Hereinafter, a first embodiment of a signal transmitting / receiving apparatus for a vehicle door according to the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the slide door 2 is supported by the upper and lower slide mechanisms 3 and 4 and the rear slide mechanism 5 with respect to the vehicle body 1 and can be opened and closed left and right. For example, the lower slide mechanism 3 is for power feeding, and the upper slide mechanism 4 is for grounding. In addition, power line communication (PLC) modules 6 and 7 are installed in the vehicle body 1 and the slide door 2, respectively.

  As shown in FIG. 2, the slide mechanism 3 includes a guide rail 11 fixed to the vehicle body 1 and a plurality of movable guide rollers 12 attached to the slide door 2. The guide rail 11 made of synthetic resin is provided with an opening 11a through which the shaft 12a of the guide roller 12 passes on the side of the square tube, and the metal strip 11b is fixed along the inner wall of the lower side, for example. . A guide roller 12 is rotatably fitted in the guide rail 11. The outer peripheral portion of the guide roller 12 is made of metal, and when the guide roller 12 rotates in the guide rail 11, the metal member on the outer peripheral portion of the guide roller 12 contacts the metal strip 11 b in the guide rail 11. And electrical conduction is made.

  The metal strip 11b of the guide rail 11 is electrically connected to the body-side power line communication module 6 disposed on the vehicle body 1 side, and the metal portion of the guide roller 12 is connected to the slide door 2 via the shaft portion 12a. It is electrically connected to the power line communication module 7 on the door side.

  On the other hand, as shown in FIG. 3, in the grounding slide mechanism 4, similarly, the grounding guide rail 13 fixed to the vehicle body 1 is made of metal, and the guide roller 14 provided on the sliding door 2 is also made. It is made of metal. The guide rail 13 is electrically grounded to the conductive chassis of the vehicle body 1, and the guide roller 14 is electrically connected to the ground terminal in the slide door 2 via the shaft portion 14a.

  Signals related to the slide door from the harness of the vehicle body 1 are once collected in the power line communication module 6 on the vehicle body 1 side, superimposed on the power supply, and superposed on the power supply, and the power line communication module 7 in the slide door 2 via the slide mechanism 3. To communicate. Conversely, a signal from the slide door 2 side is transmitted from the power communication module 7 to the power communication module 6.

  The power line communication modules 6 and 7 can transmit and receive a power supply line and a large number of signal lines to each other through a pair of conductive lines. According to the power line communication modules 6 and 7, data communication can be performed along with the supply of power using a power line through which a current flows, and has already been put into practical use for transmission / reception with a consumer in a power company or the like. Data is modulated by a modem in the power line communication modules 6 and 7 and superimposed on the power line, and a plurality of signals can be transmitted and received by switching.

  In the present embodiment, an auto-closure signal, a power window up signal, a power window down signal, a door lock signal, a door unlock signal, and pinching are superimposed on the power supply from the vehicle body 1 side to the slide door 2 side. A prevention sensor signal, a half door signal, a handle operation signal, a door lock state detection signal, a ground wire, an audio signal, and the like are transmitted and received. Sensors, motors, lamps, switches, speakers, and the like are connected to the power line communication modules 6 and 7 on the vehicle body 1 and slide door 2 side, respectively.

  Therefore, it is possible to operate the power window on the slide door 2 side from the vehicle body 1 side and turn on the lamp using the power line communication modules 6 and 7 and the power from the power line, or various signals are transmitted between the two. The information on the sensor, switch, etc. can be confirmed on the other side.

  Next, a second embodiment of the signal transmitting / receiving apparatus for a vehicle door according to the present invention will be described with reference to FIG. 4 and FIG. Note that, in the following description of the embodiment, the same components described in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the first embodiment, a large number of signals are transmitted and received while being superimposed on the power supply by supplying two electric wires. In the second embodiment, the conventional example is used without passing through the slide mechanisms 3 and 4. Energize using the extra length absorption mechanism.

  As an electric wire used in this case, a power communication cable 21 having an electromagnetic wave shielding layer as shown in FIG. 4 is connected to the power line communication modules 6 and 7 so that noise is not superimposed on the signal. The power communication cable 21 includes two conductors 22a and 22b, which are surrounded by electromagnetic wave shielding layers 23a and 23b, respectively, and are surrounded by insulating layers 24a and 24b. Further, a sheath layer 26 is laminated on the upper layer via an insulating layer 25.

  The power communication cable 21 can be expanded and contracted by being wound, for example, in a coil shape or a curl shape, and can correspond to opening / closing of the slide door 2 with respect to the vehicle body 1.

  The electromagnetic wave shielding layers 23a, 23b, and 25 may be any resin composition having electrical insulation that is not contained in ferrite particles or carbon particles. Specifically, a resin composition comprising a thermoplastic resin such as a vinyl chloride resin, a cross-linked vinyl chloride resin, a polyethylene resin, a cross-linked polyethylene resin, a polypropylene resin, a polyester resin, a silicone resin, or a fluorine resin can be given.

  The insulating layers 24a and 24b are provided so that electromagnetic waves generated from the conductors 22a and 22b prevent malfunctions of various devices mounted on the vehicle. Specifically, the insulating layers 24a and 24b are formed by blending ferrite particles and carbon particles at the time of resin composition. For example, as a specific blend, 100 to 800 overlapping portions of ferrite particles and 100 or 800 overlapping portions of ferrite particles are used. 30 to 100 overlapping carbon particles are contained.

  The resin composition only needs to contain an organic resin having electrical insulation properties, such as vinyl chloride resin, cross-linked vinyl chloride resin, polyethylene resin, cross-linked polyethylene resin, polyester resin, silicone resin, fluorine-based resin. Examples thereof include thermoplastic resins such as resins.

  Ferrite particles are complex oxides of trivalent iron and divalent metals, and are oxides exhibiting ferrimagnetism. Examples of the divalent metal include manganese, iron, cobalt, nickel, copper, and zinc. The ferrite particles preferably have a size (primary particle size) of 2 to 5 μm.

  As the carbon particles, carbon particles such as acetylene black, furnace black, and thermal black, and carbon particles such as graphite are applied. The size (primary particle size) of the carbon particles is preferably 10 to 50 nm.

  In addition, it is preferable to add both ferrite particles and carbon particles to the insulating layers 24a and 24b in terms of improving the electromagnetic shielding effect as compared with either one. The thickness of the insulating layers 24a and 24b may be in a range in which both flexibility and shielding effect can be achieved, and is specifically 0.2 to 0.8 mm.

  The sheath layer 26 is not particularly limited as long as it is made of a known material conventionally used for electric wires and cables.

  As a cable to be used, a flat flat cable 31 as shown in FIG. 5A can be used. In the flat cable 31, conductors 32a and 32b made of metal foil are arranged in parallel, and the periphery thereof is covered with electromagnetic wave shielding layers 33a and 33b, respectively. Further, a sheath layer 34 is laminated thereon.

  FIG. 5B shows the configuration of another flat cable 31 ′, in which insulating layers 35 a and 35 b are laminated on the electromagnetic wave shielding layers 33 a and 33 b, and a sheath layer 34 is further provided thereon.

  These electromagnetic wave shielding layers 33a and 33b, insulating layers 35a and 35b, and sheath layer 34 may be the same as those described in FIG.

  In the case of the flat cables 31 and 31 ', the flat cables 31 and 31' are wound in a spring shape in the casing, and the flat cable 31 is drawn into or pulled out from the casing to cope with opening and closing of the slide door 2. be able to.

BRIEF DESCRIPTION OF THE DRAWINGS In the signal transmission / reception apparatus of the vehicle door of 1st Embodiment which concerns on this invention, it is explanatory drawing of the sliding door of a motor vehicle. It is a perspective view which shows the slide mechanism for electric power supply in the signal transmission / reception apparatus of the vehicle door of 1st Embodiment. It is a perspective view which shows the slide mechanism for earth | ground in the signal transmission / reception apparatus of the vehicle door of 1st Embodiment. It is sectional drawing which shows the cable for electric power communication in the signal transmission / reception apparatus of the vehicle door of 2nd Embodiment. It is sectional drawing which shows a flat cable in the signal transmission / reception apparatus of the vehicle door of 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Vehicle body, 2 ... Slide door, 3, 4 ... Slide mechanism, 6, 7 ... Power line communication module, 11, 13 ... Guide rail, 12, 14 ... Guide roller, 21 ... Power communication cable, 23a, 23b, 25, 33a, 33b ... electromagnetic shielding layer, 31, 31 '... flat cable

Claims (3)

In the signal transmission / reception device for a vehicle door that feeds power from the vehicle body to the door side by a power supply line, and further transmits and receives signals between the vehicle body side and the door side,
The vehicle body side and the door side are each provided with a power line signal module,
The signal transmission / reception apparatus for a vehicle door, wherein the power line signal module performs transmission / reception by superimposing the signal on the power supply line.   The signal transmission / reception apparatus for a vehicle door according to claim 1, wherein the door is a sliding door. The signal transmission / reception apparatus for a vehicle door according to claim 1, wherein the power supply line is a cable in which a conductor is covered with an electromagnetic wave shielding layer.

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