JPH09266643A - Transmitter of signal power between main body and door of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove a wire harness between the main body and the door of an automobile. SOLUTION: A pair of electromagnetic couplings 10 and 11 or electrostatic couplings for signal transmission are attached, respectively, in opposition to the door panel and the main body of an automobile, and this transmitter is equipped with a charger 20 connected to the electromagnetic couplings 10 and 11 or the electrostatic coupling and a battery 2 connected to the charger 20 on the door side, and power is supplied to the electric equipment attached to the door from the battery 21. From the main body side of the automobile to the door side, charging signals are transmitted intermittently while an ignition key is set in, through a pair of electromagnetic couplings 10 and 11 or electrostatic couplings, and the charger 20 on the door side is provided with a function of stabilizing the transmitted signal by rectifying it by base band or modulation and demodulation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for transmitting signal power between an automobile body and a door, and more specifically, it eliminates a wire harness that is continuously connected to the automobile body and the door, and transmits a signal from the body side. The battery mounted on the door side is charged with electric power, and the electrical equipment on the door side is driven by the power source of the battery.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 8, a drive power supply for electric components such as a power window motor and a door lock unit mounted on a door of a vehicle is provided on a door side harness 2 arranged inside a door panel 1. Is pulled out from the through hole 3 provided in the door panel 1 and is passed between the door panel 1 and the body panel 4 of the vehicle body, and the connector 6 at the tip of the body side harness 5 and the connector at the tip of the door side harness 2 attached to the body panel 4 7 is connected, and power is supplied from a battery (not shown) mounted on the vehicle body. A grommet 8 for waterproofing is attached to the door-side harness 2 arranged between the door panel 1 and the body panel 4.

[0003]

In the above-mentioned conventional structure, it is necessary to pull out the door side harness 2 to which the connector 7 and the grommet 8 are attached from the through hole 3 of the door panel 1. The work for pulling out the door-side harness 2 from the through hole 3 requires the insertion of the door-side harness 2 from the inside of the door panel 1, which is a blind work, resulting in extremely poor workability and time-consuming drawbacks. .

Further, it is necessary to fit and connect the connectors 6 and 7 from the opposite direction in a narrow space between the door panel and the body panel, and the connection work of the connectors cannot be performed easily. It had the drawback of being time consuming. Furthermore, since the wire harness that is routed between the door panel and the body panel is bent according to the opening and closing of the door, it is necessary to keep the wire harness long, which increases the total wire length of the door side harness. However, it is costly and difficult to handle during installation.

The present invention has been made in view of the above-mentioned drawbacks, and eliminates a wire harness that is continuously laid on the door side and the main body side, so that the door side harness can be pulled out from the through hole of the door panel. Another object of the present invention is to improve workability and reduce cost by eliminating connector fitting work between the door side harness and the body side harness.

[0006]

In order to solve the above-mentioned problems, the present invention provides a pair of electromagnetic couplers or an electrostatic coupler for signal transmission which are opposed to a door panel and a body panel of an automobile body. A charger connected to each of the couplers, and a charger connected to the electromagnetic coupler or the electrostatic coupler on the door side and a battery connected to the charger are provided, and a power source is supplied from the battery to the electrical components attached to the door. A signal power transmission device between a vehicle body and a door is provided.

When the electromagnetic couplers are attached to the door panel and the body panel so as to face each other, a magnetic substance is attached to the body panel and the door panel by penetrating them through a non-magnetic substance, and the magnetic substance is positioned inside the panel. By winding the coils and energizing these coils, the magnetic material is electromagnetically converted and signals are transmitted. On the other hand, when mounting the electrostatic coupler facing the door panel and the body panel, the electrode plate is attached by penetrating the body panel and the door panel through the insulator, and the electrode harness located inside the panel is connected to the wire harness. By connecting the electric wires and bringing the electrode plates into contact with each other, the electric current is passed through the electric wires to transmit the signal.

According to the first aspect of the invention, the signal power from the vehicle body can operate the charger installed in the door to store the power in the battery, and the power of the battery installed in the door causes the door to power the door. Installed electrical components, for example,
A power window motor and a door lock motor can be driven. Therefore, it is not necessary to drive the electrical components on the door side by the power source from the battery mounted on the vehicle body side, and only the signal power needs to be transmitted between the vehicle body and the door. It is possible to eliminate the need for a wire harness that is continuously installed between the door and the door.

The charging signal on the door side is intermittently transmitted from the vehicle body side to the door side via the pair of electromagnetic couplers or electrostatic couplers while the ignition key is being inserted. The device has a function of rectifying and stabilizing the transmitted signal by baseband or modulation / demodulation. (Claim 2)

That is, while the ignition key is on the door side from the vehicle body, the charging signal is intermittently transmitted to operate the charger on the door side to store the electric power in the battery while charging the battery. During a period (timing) when no signal is transmitted, another signal, for example, a door lock signal is transmitted from the door on the driver's side to the vehicle body and from the vehicle body to another door. In this way, the charge signal is transmitted intermittently, and because the charge signal does not stabilize in response to opening and closing of the door, baseband or modulation and demodulation to rectify and stabilize the charge signal as described above. I am letting you.

The electromagnetic coupler or the electrostatic coupler attached to the door side is connected to the communication device attached to the door through a harness arranged on the door side, and the electromagnetic coupling attached to the body panel side. A switch or an electrostatic coupler to a communication device attached to the car body through a harness arranged on the car body side, and each of these communication devices is connected to a switch for each electrical component to open / close these switches. The signals are transmitted to each other through the communication device and the electromagnetic coupler or the electrostatic coupler. (Claim 3)

For example, the signal from the door lock switch provided on the driver side door is transmitted from the driver side communication device to the communication device of the vehicle body through an electromagnetic coupler or an electrostatic coupler. The door lock switch signal is transmitted to all the doors of the automobile body via the electromagnetic coupler or the electrostatic coupler to the other doors of the automobile, and the signals of the door lock switches are transmitted to all the doors. .

Automatic gain control for the communication device
(AGC) is built in, and when the pulse level of the signal transmitted between the pair of electromagnetic couplers drops when the door is opened, the pulse
It is designed to raise the level. (Claim 4) When the automatic gain control is provided as described above, it becomes possible to transmit a signal through the electromagnetic coupler even when the door is opened.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show a first embodiment, which is a body panel 4 on a vehicle body side and a door panel 1 on a door side.
And a pair of electromagnetic couplers 10 and 11 are attached to face each other, and one electromagnetic coupler 10 is connected via a harness 12 to a first communication device 13 mounted on a vehicle body, and the other electromagnetic coupler is connected. 11 is connected via a harness 14 to a second communication device 15 mounted on the door.

As shown in FIGS. 3 and 4, the pair of electromagnetic couplers 10 and 11 have the through holes 1 in the panels 1 and 4, respectively.
a and 4a are provided, and the magnetic bodies 17 and 18 supported by the non-magnetic bodies 16A and 16B made of resin are inserted through these through holes 1a and 4a, respectively. Magnetic bodies 17 and 18 are U
It has a character shape, and its both sides 17a, 18a are
The two connecting holes 17b and 18b are positioned inside the panel by projecting to the outside through two through holes 16a formed in 16B. Coils 19A and 1 are attached to the connecting portions 18b and 17b.
9B is wound, and the coil 19A is connected to a required electric wire of the harness 12 and connected to the first communication device 13.
B is connected to a required electric wire of the harness 14 and is connected to the second communication device 15.

Both side portions 17a and 18a of the magnetic bodies 17 and 18 projecting from the facing surfaces of the door panel 1 and the body panel 4, respectively.
4A, when the door panel 1 is closed, as shown in FIG. Therefore, when the coil 19A is energized to excite the magnetic body 17, the electromagnetic wave is transmitted to the other magnetic body 18, and the signal power from the coupler 10 is transmitted to the coupler 11. A signal is similarly transmitted from the magnetic body 18 to the magnetic body 17.
Further, when the door panel 1 is opened, as shown in FIG. 4 (B), the magnetic bodies 17 and 18 are separated without coming into contact with each other, but the separation distance is set within the electric field range to enable signal transmission. I am trying.

On the door side, inside the door panel, as shown in FIGS. 1 and 2, the charger 2 connected to the coil 19B.
0 and the second communication device 15, a battery 21 connected to the charger 20, an electrical component switch 23 connected to the second communication device 15, and an electrical component such as a door lock motor connected to the second communication device 15 and the battery 21. 22 and so on.

The charger 20 is provided with a diode bridge 20a to rectify the intermittently input power signal to stabilize the charging. As shown in FIG. 6, the charger 20 may be provided with a base band, or a modulator and a demodulator to intermittently rectify and stabilize the charging signal input in a panel shape.

Note that, as shown in FIG. 6, a function of rectifying and stabilizing the signal transmitted to the charger 20 by baseband or modulation / demodulation may be provided.

As described above, the coil 19B is connected to the charger 20.
The charger 20 is moved by the charging signal from the coil 19B to store electric power in the battery 21, and the power source from the battery 21 drives the electrical equipment 22 such as the door lock motor. Therefore, the electrical component 22 is connected to the battery 21 and the second communication device 15, and the drive current from the battery 21 is controlled by the control signal from the second communication device 15 to move or stop the electrical component.

The second communication device 15 is connected to a circuit branched from the circuit connecting the coil 19B and the charger 20, and the signal from the coil 19B is connected to the second communication device 15.
In contrast, the signal from the second communication device 15 is transmitted to the vehicle body side through the coil 19B.

In the present embodiment, as long as the ignition key is on the vehicle body side, the charging timing T1 is intermittently provided as shown in FIG.
During the period (1), a constant pulse-shaped (1010101) charging signal is transmitted from the automobile body side to the door side from the electromagnetic coupler 10 to 11. The timing T2 other than the charging timing T1 is the timing at which the first communication device 13 is in the reception state and is transmitted from the second communication device 15 to the first communication device 13, and the timing T3 is at the second communication device 15 is in the reception state. The transmission timing is set from the first communication device 13 to the second communication device 15. That is, the transmission timing T
2, for example, from the second communication device 15 to the first communication device 1
Pulse signal (001
(01011) is transmitted to the electromagnetic couplers 11 to 10, and at the transmission timing T3, the door lock signal is transmitted from the first communication device 13 to the second communication device 15 of another door.

An automatic gain control (AGC) 24 is provided inside the second communication device 15 and raises the pulse level when the level of the pulse input to the second communication device 15 decreases when the door is opened. I am trying.

As shown in FIG. 1, when the automobile has four doors, four door panels (1-I, 1-II, 1-II) are provided.
I, 1-IV) and the body panel 4 facing each other, electromagnetic couplers 10 and 11 are attached respectively, and the electromagnetic coupler 11 on the door side is connected to a charger 20 provided on each door to connect a battery. 21 is charged and a signal is transmitted to the second communication device 15. Electromagnetic coupler 10 on the body panel 4 side
Are respectively connected to the first communication device 13 installed in the vehicle body. With this configuration, for example, when the switch 23 provided on the driver side door panel 1-I is operated to lock the door, the second communication device 15 of the door panel 1-I → first
A signal is transmitted from the communication device 13 to the second communication device 15 of another door panel.

In the power signal transmission device of the first embodiment, the door side charger 20 is charged from the first communication device 13 of the automobile body through the electromagnetic couplers 10 and 11 with the ignition key being inserted. The signal is transmitted intermittently (charging timing T1). This charging signal causes the charger 20
The battery 21 is charged and the power is stored in the battery 21.

Door lock switch 23 provided on the door side
Is turned on, the second communication device 15 → the electromagnetic coupler 11 on the door side → the electromagnetic coupler 10 on the body panel side → the first
The control signal is transmitted from the communication device 13 to the second communication device 15 ′ of another door. The transmission of the signal from the second communication device 15 on the door side is performed at the transmission timing T2 after it is confirmed that the charging timing T1 is completed. In addition,
When the switch 23 is turned on during the charging timing T1, the second communication device 15 stores the data in memory, and after the charging timing T1 ends, the signal is transmitted to the first communication device 13.

The transmission from the first communication device 13 of the automobile body to the second communication device 15 'of another door is performed at the transmission timing T.
After it is confirmed that 2 has ended, the transmission timing T3
Done in After the transmission timing T3 ends, the charging timing T1 is returned to, and the predetermined pulse signal of the charging signal is transmitted from the first communication device 13 to the second communication devices 15 and 15 'of each door.
Sent to

The door lock signal is transmitted to the second communication device 15,
When input to 15 ', the door lock motor 22 is driven to lock each door. The same applies to operation switches for other electrical components such as power windows. A switch-on signal is input to the second communication device, and the second communication device operates the power window drive motor.

With the above arrangement, the electromagnetic couplers 10 and 1
It is possible to move the charger 20 mounted on each door to store the electric power in the battery 21 by simply transmitting the pulse signal via 1, and to electrically drive the electric component attached to the door by the electric power of the battery 21. You can Therefore, it is not necessary to continuously wire the wire harness including the electric wire for driving power and the electric wire for signal transmission to the automobile body and the door.

7A and 7B show a second embodiment of the present invention. In the first embodiment, an electromagnetic coupler is used, whereas in the second embodiment, a pair of electrostatic couplers are used. It differs from the first embodiment in that the couplers 30 and 31 are attached so that the body panel 4 and the door panel 1 face each other. Other configurations and operations are the same as those of the first embodiment, and therefore, description thereof will be omitted.

In the electrostatic couplers 30 and 31, a plurality of electrodes 33 are vertically arranged in two mounting holes in the mounting holes provided in the body panel 4 and the door panel 1 with an insulator 32 interposed therebetween, and the required intervals are provided in each stage. Opened and installed in parallel. Each electrode 3
Reference numeral 3 penetrates through the insulator 32, partially projects from the outer surface of the panel, and is connected to the electric wire 34 on the inner side of the panel.

As shown in FIG. 7B, the electrostatic couplers 30 and 31 are arranged between the electrodes 33 of the electrostatic coupler 30 and the electrodes 33 of the electrostatic coupler 31 when the door is closed. 'Alternately insert and transmit power and signal.

[0033]

As is apparent from the above description, in the device according to the present invention, only the electric power signal is transmitted between the vehicle body side and the door side by the electromagnetic coupler or the electrostatic coupler, and the transmission is performed. Since the charger installed in each door is moved by the generated signal to store electric power in the battery, it is not necessary to send driving power from the battery installed in the vehicle body to the door. Therefore, there is no need to install a wire harness between the vehicle body side and the door, and it is possible to eliminate the work of pulling out from the door panel through hole of the door side harness, which is conventionally required, to the door panel of the harness on the door side. Wiring work of the becomes simple. Further, the total wire length of the door side harness can be shortened, and the grommet can be eliminated, so that the cost can be reduced and the resource can be saved. Further, since there is no wire harness between the door and the vehicle body, the problem of the flexibility of the wire harness does not occur when the door is opened and closed.

When an electromagnetic coupler is used and an automatic gain control (AGC) is provided in the second communication device on the door side, a signal is transmitted by raising the pulse level even when the door is opened. be able to. That is,
Signals can be transmitted regardless of whether the door is open or closed.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram showing a state in which a transmission device according to a first embodiment of the present invention is attached to four doors.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a schematic perspective view showing an electromagnetic coupler.

FIG. 4A is a schematic plan view of essential parts showing a coupled state of the electromagnetic coupler when the door is closed, and FIG. 4B is a schematic plan view of essential parts when the door is opened.

FIG. 5 is a diagram showing a pulse signal transmitted by an electromagnetic coupler.

FIG. 6 is a schematic view showing a modified example of the charger mounted on the door side.

FIG. 7A is a perspective view of the electrostatic coupler of the second embodiment, and FIG. 7B is a schematic plan view showing a coupled state when the door is closed.

FIG. 8 is a perspective view showing a conventional example.

[Explanation of symbols]

 1 Door Panel 4 Body Panel 10, 11 Electromagnetic Coupler 13 First Communication Device 15 Second Communication Device 16A, 16B Non-Magnetic Material 17, 18 Magnetic Material 17A, 19B Coil 20 Charger 21 Battery 22 Electrical Equipment 23 Electrical Equipment Switch 30, 31 Electrostatic Coupler 33, 33 'Electrode

Continuation of front page (51) Int.Cl. ⁶ Identification number Reference number in the agency FI Technical indication location H02J 13/00 H02J 13/00 D (72) Inventor Yozo Nishiura 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi No. Harness Research Institute Co., Ltd.

Claims (4)

[Claims] 1. A pair of electromagnetic couplers or electrostatic couplers for signal transmission are respectively installed facing a door panel and a body panel of an automobile body, and the electromagnetic coupler or the electrostatic coupler is mounted on a door side. Signal power between the vehicle body and the door, characterized in that it comprises a charging device connected to the dynamic coupler and a battery connected to the charging device, and supplies power from the battery to electrical components attached to the door. Transmission equipment. 2. A charging signal is intermittently transmitted to the door side from the automobile body side through the pair of electromagnetic couplers or electrostatic couplers while the ignition key is in the door side. The apparatus for transmitting signal power between a vehicle body and a door according to claim 1, wherein the charger has a function of rectifying and stabilizing the transmitted signal by baseband or modulation / demodulation. 3. An electromagnetic coupler or an electrostatic coupler attached to the door side is connected to a communication device attached to the door via a wire harness arranged on the door side, and attached to the body panel side. An electromagnetic coupler or an electrostatic coupler is connected to a communication device attached to the vehicle body via a wire harness arranged on the vehicle body side, and these communication devices are connected to respective electrical component switches, The signal power between the vehicle body and the door according to claim 1 or 2, wherein the open / close signals of these switches are mutually transmitted as signals through the communication device and the electromagnetic coupler or the electrostatic coupler. Transmission equipment. 4. The automatic gain control for the communication device
(AGC) is built in, and when the pulse level of the signal transmitted between the pair of electromagnetic couplers or electrostatic couplers drops when the door is opened, the pulse level is raised by the auto gain control. The signal power transmission device between the vehicle body and the door according to claim 3, which is configured.