JP2000255340A - Structure for feeding power to vehicle door and electromagnetic induction connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a vehicle door into a double-door structure and to stably supply power to the vehicle door. SOLUTION: This connector has primary and secondary coils provided respectively on a vehicle main body 11 and a vehicle door 10 provided at the rear end thereof to allow easy separation of a power line connecting the vehicle main body 11 to the vehicle door 10. A double-door structure can thus be applied to the vehicle door 10 having an electric circuit driven in response to power. Moreover, since the primary and secondary coils are electrically connected together without contact, they will not be worn by opening and closing of the vehicle door 10 and power can be supplied stably.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for supplying power to a vehicle door to which a power line is connected using electromagnetic induction, and an electromagnetic induction type connector.

[0002]

2. Description of the Related Art With the recent advancement of the functions of automobiles, vehicle doors are provided with electric circuits that require power supply, such as power window drive circuits and turn signal drive circuits. And, conventionally, a harness is passed across the vehicle body, the vehicle door, and the rotation axis,
Power was supplied to the electric circuit.

[0003]

By the way, a double door structure which is applied to a refrigerator of a home electric appliance (Japanese Patent Laid-Open No. Hei 5-205).
No. 10659) is being studied for application to vehicle doors. However, in the above-described conventional power supply structure for a vehicle door, since the vehicle body and the vehicle door are connected by a harness, it is impossible to apply the double door structure.

The present invention has been made in view of the above circumstances, and has a vehicle door having a double-opening structure, a power supply structure for a vehicle door capable of supplying a stable power to the vehicle door, and an electromagnetic induction type. The purpose is to provide connectors.

[0005]

In order to achieve the above object, a power supply structure for a vehicle door according to the first aspect of the present invention comprises:
A vehicle door provided in an automobile has a double-opening structure that can rotate around any of a pair of opposite sides constituting an outer periphery of the vehicle door, and the vehicle door is driven by receiving electric power. An electric circuit, provided for each pair of opposite sides,
A pair of secondary coils connected to the electric circuit are provided, and the vehicle body of the vehicle is provided with an inverter connected to the power supply device of the vehicle, and provided opposite to each secondary coil of the vehicle body, and is excited by the inverter. And a primary coil.

According to a second aspect of the present invention, in the first aspect, a door-side optical communication element for providing a control signal to an electric circuit is provided for each of the pair of opposite sides of the vehicle door, and a vehicle body is provided. The feature is that a vehicle-side optical communication element connected to a signal line provided in a vehicle body is provided in a portion facing the door-side optical communication element.

According to a third aspect of the present invention, there is provided an electromagnetic induction type connector in which a vehicle door provided in an automobile is a double-opening structure in which the vehicle door is rotatable about any of a pair of opposite sides constituting the outer periphery of the vehicle door. A connector for connecting an electric circuit provided in the vehicle door and a power line between the vehicle body and the electric circuit of the vehicle door, and provided for each of a pair of opposite sides of the vehicle door. A secondary connector provided with a secondary coil, and a primary connector provided with a primary coil that is provided to face the secondary coil in the vehicle body and is excited by an inverter connected to a power supply device of the vehicle. It is characterized by consisting of

According to a fourth aspect of the present invention, in the third aspect, both the primary coil and the secondary coil are arranged so that their axes are aligned with the center of rotation of the vehicle door. Have.

[0009]

According to the present invention, by providing both primary and secondary coils in the vehicle body and the vehicle door, the electric power connecting the vehicle body and the vehicle door is provided. Since the line can be easily separated, the double door structure can be applied to a vehicle door provided with an electric circuit driven by receiving electric power. In addition, since the primary and secondary coils are electrically connected in a non-contact state, they can be stably supplied without being worn by opening and closing the vehicle door.

<Invention of Claim 2> By providing a door-side optical communication element and a vehicle-side optical communication element in the vehicle body and the vehicle door, a signal line connecting the vehicle body and the vehicle door is formed. Since it can be easily separated, the double door structure can be applied to a vehicle door provided with an electric circuit for receiving a signal via a signal line.

<Invention of Claim 3> According to the present invention, both the primary and secondary connectors for connecting the power lines of the vehicle body and the vehicle door are electrically connected by electromagnetic induction of a coil. Therefore, the two connectors can be easily separated from each other, whereby the double door structure can be applied to a vehicle door provided with an electric circuit that receives and drives electric power. In addition, since both the primary and secondary coils of both connectors are electrically connected in a non-contact state, stable power supply is possible without wear due to opening and closing of the vehicle door.

<Invention of Claim 4> Since the axes of both the primary and secondary coils coincide with the center of rotation of the vehicle door,
Even if the vehicle door is turned, the magnitude of the magnetic flux penetrating both coils is not affected, and stable power supply is possible.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS <First Embodiment>
The present invention is applied to a power supply structure for a vehicle door 10 provided on a rear end face of a one-box type automobile, which is shown in FIGS. 1 to 5. The vehicle door 10 has a square shape as shown in FIGS. 1A and 1B, and has a double-open structure disclosed in Japanese Patent Application Laid-Open No. 5-10659. That is, a pair of support blocks 12, 12 protrude from upper and lower ends on both left and right sides at the rear end of the vehicle body 11, and the support blocks 12, 1 are provided.
Rotation support shafts 13 are protruded from 2 so as to face each other. On the other hand, openings 14 are provided on both left and right sides of the vehicle door 10 so as to receive the rotation support shafts 13, and slots provided on the inner side of the openings 14 for engaging with the rotation support shafts 13 are provided. A latch plate (not shown) is provided. The latch plates in the left and right openings 14 are connected to each other by a link (not shown) extending horizontally in the vehicle door 10 so that the vehicle door 10 can be centered on either of the left and right opposite sides. It can rotate (see FIGS. 1A and 1B).

As shown in FIG. 2, the vehicle door 10 has:
A rectangular glass window 15 is provided on the upper side, and a pair of blinkers 40, 40 are provided on the left and right on the lower side. The glass window 15 is provided with a wiper 16 having a rotating shaft disposed below the glass window 15.
(See FIG. 2). Also,
The vehicle door 10 is provided with a drive circuit unit 18 (see FIGS. 2 and 4) in which a drive circuit for the motor 17 and a drive circuit for the blinker 40 are integrated.

As shown in FIG. 2, a pair of upper and lower recesses 20 and 21 are formed in the middle of the pair of left and right opposite sides of the vehicle door 10, respectively. The electromagnetic induction type connector 22 according to the present invention is arranged. As shown in FIG. 3, the electromagnetic induction type connector 22 includes a primary side connector 23 and a secondary side connector 24 which can be separated from each other. The secondary side connector 24 is, for example, a secondary core 25 obtained by sintering ferrite powder in a cylindrical shape.
Is provided with a secondary coil 26 wound around the outer periphery thereof. Then, the support base 2 protruding laterally from the outer periphery of the secondary coil 26
7 is fixed upright on the inner surface 20A of the recess 20 as shown in FIG. 2, and the axis of the secondary core 25 coincides with the center of rotation of the vehicle door 10. The electric wire forming the secondary coil 26 is drawn into the vehicle door 10 along the support base 27 and is connected to a power line extending from the drive circuit unit 18 (see FIG. 2).

On the other hand, the primary side connector 23 is formed by winding a pair of primary coils 29, 29 around a primary core 28 also formed by sintering ferrite powder, for example. Primary core 28
A pair of cylindrical bodies 28A, 28 having the same diameter as the secondary core 25 from the tips of the two opposing sides of the gate toward the side approaching each other.
A is protruded, and primary coils 29, 29 are wound around the cylindrical bodies 28A, 28A. The side of the primary core 28 opposite to the cylindrical body 28A is fixed to the rear end surface of the vehicle body 11, and the axis of the cylindrical body 28A is made to coincide with the axis of the rotation support shaft 13. The electric wire forming the primary coil 29 is connected to an inverter 35 (see FIG. 4) provided in the vehicle body 11.

As shown in FIG. 2, a light receiving element 30 for optical communication is buried in an upper inner surface of a concave portion 21 of the vehicle door 10 disposed below the concave portion 20. Reference numeral 30 is connected to a signal line extending from the drive circuit unit 18. On the other hand, on the left and right sides of the rear end surface of the vehicle body 11, a pair of convex portions 31, 31 that can be accommodated in the concave portions 21 are provided. The element 32 is embedded. The light receiving element 30 and the light emitting element 32
Are opposed to each other with their optical axes aligned with the center of rotation of the vehicle door 10.

The electric configuration of the vehicle body 11 is shown in FIG. 4. A control circuit 33 provided in the vehicle body 11 receives a command to start the wiper 16 and a command to turn on the left and right blinkers 40, and The inverter 35 connected to the device 34 is activated to excite the primary coil 29, and optical signals based on commands are transmitted from the left and right light emitting elements 32,32.

Next, the operation of this embodiment having the above configuration will be described. When driving a car, the vehicle door 1
0 is closed, and the secondary connectors 24, 24 provided on the left and right opposite sides thereof are connected to the primary connectors 23, 23 provided on the left and right edges of the vehicle body 11. When the connectors are connected, as shown in FIG. 5, the secondary core 25 is disposed between the two cylindrical bodies 28A, 28A of the primary core 28, and a closed magnetic circuit is formed by the two cores 25, 28. . In addition, the light receiving elements 30 provided on the left and right sides of the vehicle door 10 face the light emitting elements 32 provided on the left and right sides of the vehicle body 11, respectively.

Here, when the driver operates a switch lever (not shown) of the blinker 40, the command is given to the control circuit 33 provided in the vehicle body 11. Then, the control circuit 33 activates the inverter 35 connected to the power supply device 34 to excite the primary coil 29 and transmits an optical signal from the left and right light emitting elements 32. When the primary coil 29 is excited, the magnetic flux generated by the primary coil 29 is applied to both cores 25 and 28.
, Penetrates the secondary coil 26, and an induced electromotive force is generated in the secondary coil 26. This is a rectifier circuit (not shown) provided in the drive circuit unit 18.
Is converted to DC. On the other hand, the light signal emitted from the light emitting element 32 is received by the light receiving element 30 of the vehicle door 10, and the received signal is taken into the drive circuit unit 18. Then, based on the received signal, the winker 4
DC current is applied to the 0 lamp, and that lamp blinks. The same applies when the driver turns on the switch of the wiper 16.

In the present embodiment, since the vehicle door 10 has a double-opening structure, the following operational effects can be obtained.
That is, when the right edge of the vehicle door 10 is pulled forward,
As shown in FIG. 1 (A), the vehicle door 10 pivots around its left side and moves to the left side of the vehicle body, and the rear part of the vehicle is opened. Thereby, when unloading the luggage from the rear part of the automobile and transporting it to the right side toward the rear end face of the automobile, the vehicle door 10 does not become an obstacle, and the transportation operation can be easily performed. On the other hand, when the luggage is transported on the left side of the rear end of the vehicle, the vehicle door 10
The vehicle door 10 may be pivotally opened about the right side of the vehicle door 10 by pulling the left side edge portion of the vehicle toward the user (see FIG. 1B).

In this embodiment, the vehicle door 10
Is open, the power line between the vehicle body 11 and the vehicle door 10 is connected by the electromagnetic induction type connector 22 on the rotation center side, and furthermore, the light emitting and receiving elements 30, 32 on the rotation center side. Signal lines are also connected.
Therefore, for example, when the hazard switch for blinking both the blinkers 40, 40 is turned on in order to call attention while the vehicle door 10 is opened, the electromagnetic induction type connector 22 on the rotation center side and the two elements 30, 32 are turned on. Power and signals are supplied to the drive circuit unit 18 via the
40 flashes. Moreover, since the primary and secondary coils 26 and 29 of the electromagnetic induction type connector 22 are arranged so that their axes are aligned with the center of rotation of the vehicle door 10, the magnitude of the magnetic flux penetrating through both coils 26 and 29 is large. The vehicle door 10
And stable power supply is possible without being affected by the rotational position of the motor.

As described above, in the present embodiment, the vehicle body 1
1 and the vehicle door 10 both primary and secondary coils 26, 2
By providing the electromagnetic induction type connector 22 which is electromagnetically coupled at 9, the power line connecting the vehicle body 11 and the vehicle door 10 can be easily separated, and further, the vehicle body 11 and the vehicle door 10 are connected to each other. The light emitting element 32 and the light receiving element 3
0, the signal line connecting between the vehicle body 11 and the vehicle door 10 can be easily cut off. Therefore, the vehicle door 10 having an electric circuit that receives and drives electric power and a signal. It is now possible to apply a double door structure to the door. Moreover, both coils 26, 29 and both elements 30,
32 is electrically connected in a non-contact state, so that it does not wear due to opening and closing of the vehicle door 10 and enables stable transmission and reception of power and signals.

<Second Embodiment> A second embodiment is shown in FIG. 6, and is different from the first embodiment in the configuration of the electromagnetic induction type connector. Other configurations are the same as those of the first embodiment, and thus the same configurations are denoted by the same reference numerals and overlapping description will be omitted.

A secondary connector 51 provided in the electromagnetic induction type connector 50 of the present embodiment is shown in the lower part of FIG. 6, and is provided outside the secondary coil 52 wound in an air-core cylindrical shape. A supporting base 54 that is configured to be covered with a bottomed cylindrical secondary core 53 and that extends laterally from the peripheral surface of the secondary core 53;
The first embodiment is fixed upright on the inner surface 20A of the concave portion 20 shown in FIG. On the other hand, the primary connector 5
The primary core 56 provided in 5 has a structure in which a cylindrical body 56B is hung from a disk portion 56A capable of closing the upper opening of the secondary core 53, and a primary coil 57 is wound around the cylindrical body 56B. .

In this electromagnetic induction type connector 22, the primary and secondary coils 52, 57 are arranged such that the axes thereof are aligned with the door 10 for the vehicle.
When the vehicle door 10 is closed, the primary coil 57 is inserted into the air core portion of the secondary coil 52 so that the two cores 5
3, 56 constitute a closed magnetic circuit. Further, a pair of knobs (not shown) for opening the vehicle door 10 are provided near the left and right opposite sides of the vehicle door 10, respectively. And a pair of up-and-down driving mechanisms (not shown) interlocked with the. When one of the knobs is pulled when the vehicle door 10 is opened, the corresponding vertical drive mechanism moves the primary connector 55 upward and separates it from the secondary connector 51 (FIG. 6). reference). Even with such a configuration, the same effects as in the first embodiment can be obtained.

<Other Embodiments> The present invention is not limited to the above embodiments. For example, the following embodiments are also included in the technical scope of the present invention.
In addition to the following, various changes can be made without departing from the scope of the invention.

(1) In the first embodiment, the axis of both the primary and secondary coils 26 and 29 is set to coincide with the center of rotation of the vehicle door 10. If the magnetic flux penetrates through the secondary coil, the axes of both coils do not necessarily have to coincide with the center of rotation of the vehicle door.

(2) The vehicle door 10 of the first embodiment
Was designed to rotate in the horizontal direction around one of the left and right sides, but the present invention is applied to a vehicle door that rotates vertically around one of the upper and lower sides. May be.

(3) In the first embodiment, an example in which the present invention is applied to the vehicle door 10 at the rear of the vehicle is illustrated. However, the vehicle door provided on the side of the vehicle or the vehicle provided on the ceiling is provided. The present invention may be applied to a door. (4) In the first embodiment, the power line and the signal line are separately provided, and the power and the signal are sent from the vehicle body 11 to the vehicle door 10. However, the power line and the signal line are also used. Alternatively, the power and the signal may be transmitted from the vehicle body to the vehicle door through one line. (5) In the first embodiment, the electromagnetic induction type connector 22
And the optical communication elements 30 and 32 are separately arranged, but the electromagnetic induction type connector and the optical communication element may be collectively arranged at the same part of the vehicle door. Specifically, a light emitting element and a light receiving element are formed by forming a through hole along the rotation axis of the electromagnetic induction type connector so that the optical axis passes through the through hole.
The primary connector and the secondary connector may be integrally provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state where a vehicle door according to a first embodiment of the present invention is opened.

FIG. 2 is an enlarged perspective view thereof.

FIG. 3 is a perspective view of an electromagnetic induction type connector.

FIG. 4 is a block diagram showing an electrical configuration.

FIG. 5 is a side sectional view showing a state where the electromagnetic induction type connector is connected.

FIG. 6 is a perspective view of an electromagnetic induction type connector according to a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Vehicle door 11 ... Vehicle main body 18 ... Drive circuit unit 22, 50 ... Electromagnetic induction type connector 23, 55 ... Primary side connector 24, 51 ... Secondary side connector 26, 52 ... Secondary coil 29, 57 ... Primary coil Reference Signs List 30 light receiving element (door-side optical communication element) 32 light-emitting element (vehicle-side optical communication element) 34 power supply device 35 inverter

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Kuki Heiji 1-7-10 Kikuzumi, Minami-ku, Nagoya City, Aichi Prefecture Inside Harness Research Institute, Inc. No. 7-10 Inside Harness Research Institute

Claims (4)

[Claims] 1. A vehicle door provided in an automobile has a double-opening structure capable of rotating about any one of a pair of opposite sides constituting an outer periphery of the vehicle door. And a pair of secondary coils provided on each of the pair of opposite sides and connected to the electric circuit. The vehicle body of the automobile has an inverter connected to a power supply device of the vehicle. And a primary coil provided in the vehicle main body so as to face each of the secondary coils and excited by the inverter. 2. A door-side optical communication element for providing a control signal to the electric circuit is provided for each of the pair of opposite sides of the vehicle door, and the vehicle body is opposed to the door-side optical communication element. The power supply structure for a vehicle door according to claim 1, wherein a vehicle-side optical communication element connected to a signal line provided in the vehicle body is provided in the portion. 3. A vehicle door provided in an automobile has a double-opening structure capable of rotating about any of a pair of opposite sides constituting an outer periphery of the vehicle door. A connector for connecting a power line between the electric circuit and the vehicle body, wherein the connector is connected to the electric circuit of the vehicle door, is provided for each of the pair of opposite sides of the vehicle door, and includes a secondary coil. And a primary connector provided with a primary coil provided in the vehicle body so as to face the secondary coil and excited by an inverter connected to a power supply device of the vehicle. Characteristic electromagnetic induction type connector. 4. The electromagnetic induction type connector according to claim 3, wherein the primary and secondary coils are arranged so that their axes are aligned with the center of rotation of the vehicle door.