JP2015081015A - Vehicle door - Google Patents

Abstract

A vehicle door that eliminates the need for wiring work for feeding power between a door mirror and an automobile body is provided.
A vehicle door (1) includes a vehicle door body (2) and a door mirror (3) rotatably attached to the door body (2). The door mirror 3 is attached to the door main body 2 and accommodated in a stay 32 provided with a rotation shaft 31, a mirror support portion 33 attached rotatably around the rotation shaft 31 of the stay 32, and the mirror support portion 33. And a mirror 34. The mirror support portion 33 is provided with a power receiving coil Co1, and the door body 2 is provided with a power feeding coil Co2 that supplies power to the power receiving coil Co1 in a non-contact manner. Electric power from a battery mounted on the vehicle is supplied to a load provided on the door mirror 3 by non-contact power feeding between the power receiving coil Co1 and the power feeding coil Co2.
[Selection] Figure 2

Description

  The present invention relates to a vehicle door, and more particularly, to a vehicle door including a vehicle door body and a door mirror that is rotatably attached to the door body about a rotation axis.

  An automobile door mirror is provided with electronic devices such as a motor for driving the mirror and a heater, and power supply is required. Conventionally, power supply from an automobile body to a door mirror is performed by wire (for example, Patent Documents 1 and 2). For this reason, a hole is formed in an automobile body (for example, a door), and a power supply line is passed through the hole, thereby connecting a battery provided in the vehicle and a door mirror outside the vehicle with a power supply line.

  As described above, in order to supply power to a conventional door mirror by wire, it is necessary to make a hole in an automobile body and pass an electric wire through the hole, which is troublesome. In addition, there is a problem that the mechanism for rotatably mounting the door mirror has a small space for wired wiring, which is a great design limitation.

Japanese Patent Laid-Open No. 7-143065 JP 2003-43229 A

  Then, this invention makes it a subject to provide the vehicle door which made the wiring operation | work for electric power feeding with a door mirror and a motor vehicle body unnecessary.

  The invention according to claim 1 for solving the above-described problem is a vehicle door including a door body of a vehicle and a door mirror that is rotatably attached to the door body. A power receiving coil is provided, and the door main body is provided with a power feeding coil that supplies power to the power receiving coil in a non-contact manner.

  According to a second aspect of the present invention, the door mirror is attached to the door body, a stay provided with a rotation shaft, a mirror support portion rotatably attached around the rotation shaft of the stay, and the mirror support The vehicle door according to claim 1, wherein the power receiving coil is provided in the mirror support portion.

  The vehicle door according to claim 1 or 2, further comprising position detection means for detecting a rotational position of the door mirror based on a power reception level of the power reception coil. Exist.

  As described above, according to the first aspect of the present invention, since the power feeding coil provided on the door body feeds power to the power receiving coil provided on the door mirror in a non-contact manner, the wiring of the power feeding line between the door mirror and the automobile body is provided. It can be made unnecessary.

  According to the second aspect of the present invention, since the power receiving coil is provided in the mirror body, it is not necessary to wire a feeding line on the rotating shaft.

  According to the invention described in claim 3, since the position detecting means detects the rotational position of the door mirror based on the power receiving level of the power receiving coil, it is not necessary to provide a position detecting sensor separately from the power receiving coil, thereby reducing the cost. Can be planned.

It is a side view of the door for vehicles of the present invention. It is a schematic sectional drawing of the vehicle door shown in FIG. It is an electrical block diagram of the vehicle door shown in FIG.

  Hereinafter, the vehicle door of the present invention will be described with reference to FIGS. FIG. 1 is a side view of a vehicle door according to the present invention. 2 is a schematic cross-sectional view of the vehicle door shown in FIG. FIG. 3 is an electrical configuration diagram of the vehicle door shown in FIG. 1.

  As shown in FIG. 1, the vehicle door 1 includes a vehicle door body 2 and a door mirror 3 that is rotatably attached to the door body 2. First, the structure of the general door main body 2 and the door mirror 3 is demonstrated.

  The door body 2 is provided in an opening of the vehicle body so as to be opened and closed. As shown in FIG. 1, the door body 2 includes a metal outer panel 21 provided on the vehicle outer side, a resin inner panel (not shown) provided on the vehicle inner side, the outer panel 21, and not shown. And a side glass 22 provided so as to be openable and closable with respect to a window frame provided on the inner panel. The side glass 22 is provided so as to be movable up and down between a closed position that covers the entire window frame and an open position that is accommodated between the outer panel 21 and the inner panel.

  As shown in FIGS. 1 and 2, the door mirror 3 is attached to the door body 2 and has a stay 32 provided with a rotation shaft 31, a mirror support portion 33 that rotates around the rotation shaft 31 of the stay 32, and a mirror. The mirror 34 accommodated in the support part 33 and the load 35 (refer FIG. 3) accommodated in the mirror support part 33 are provided.

  In the present embodiment, the stay 32 is overlapped with a corner base portion made of resin or the like provided at the front end of the window frame, and is attached by, for example, screwing. Note that the attachment position of the stay 32 is not limited to the corner base portion, and may be attached to the outer panel 21.

  As shown in FIG. 2 (A), the mirror support portion 33 rotates around the rotation axis 31 to open the mirror 34 away from the door body 2 and as shown in FIG. 2 (B). 34 moves between the closed position approaching the door body 2. As the load 35, a mirror 34, a motor for driving the mirror support 33, a heating wire for preventing the mirror 34 from fogging, and the like can be considered. Driving of the load 35 is controlled by control from the ECU 6 provided in the vehicle.

  In the present invention, non-contact power feeding is performed between a power receiving coil Co1 (described later) and a power feeding coil Co2 provided on the door body 2 to supply power to a load 35 such as a motor or a heating wire housed in a mirror support portion 33 of the door mirror 3. To do. That is, the mirror support 33 of the door mirror 3 is further provided with a power receiving coil Co1, a capacitor C1, a converter 36, and a power receiving level detection circuit 37, as shown in FIG.

  The power receiving coil Co1 is configured, for example, by winding a conducting wire in a spiral shape or a helical shape. As shown in FIG. 3, the capacitor C1 is connected in parallel to the power receiving coil Co1, and forms a resonance circuit together with the power receiving coil Co1. In the present embodiment, the capacitor C1 is connected in parallel with the power receiving coil Co1, but may be connected in series. The converter 36 performs AC / DC conversion or AC / AC conversion on the AC power received by the power receiving coil Co <b> 1 and converts the AC power into power suitable for driving the load 35.

  The door body 2 is provided with a power supply coil Co2 that supplies power to the power receiving coil Co1 in a contactless manner and a capacitor C2. The power supply coil Co2 is configured by, for example, winding a conducting wire in a spiral shape or a helical shape. The feeding coil Co2 is attached to, for example, a corner piece portion of the door body 2 or between the outer panel 21 and the inner panel.

  As shown in FIG. 3, the capacitor C2 is connected in parallel to the feeding coil Co2, and forms a resonance circuit together with the feeding coil Co2. In the present embodiment, the capacitor C2 is connected in parallel with the feeding coil Co2, but may be connected in series. AC power converted by the DC / AC converter 4 is supplied to the resonance circuit including the feeding coil Co2 and the capacitor C2. The DC / AC converter 4 is a converter that converts DC power from the battery 5 into AC power.

  The capacitors C1 and C2 include a resonance circuit composed of the capacitor C1 and the receiving coil Co1, a resonance circuit composed of the capacitor C2 and the feeding coil Co2, when the mirror support portion 33 is in the open position (FIG. 2A), The impedance matching is adjusted so that the efficiency of the non-contact power feeding becomes the best.

  Further, the power reception level detection circuit 37 described above detects the power reception level of the power reception coil Co1 and transmits it to the ECU 6. Since the power receiving coil Co1 described above is accommodated in the mirror support portion 33, the relative position between the power receiving coil Co1 and the power feeding coil Co2 changes according to the rotation of the mirror support portion 33. As described above, when the mirror support portion 33 is in the open position (FIG. 2A), the capacitors C1 and C2 are adjusted so that the power feeding efficiency between the coils Co1 and Co2 is the best. As the support portion 33 rotates from the open position toward the closed position, the power receiving coil Co1 is separated from the power supply coil Co2, and the power supply efficiency deteriorates. The ECU 6 functions as a position detection unit, and can detect the position of the power receiving coil Co1, that is, the rotational position of the mirror support portion 33, based on the power receiving level of the power receiving coil Co1 corresponding to the power feeding efficiency.

  Next, the operation of the vehicle door 1 described above will be described. For example, when the ignition switch is turned on, the DC power from the battery 5 is converted into AC power by the DC / AC converter 4 and supplied to the feeding coil Co2 and the capacitor C2. As a result, the power feeding coil Co2 provided on the door body 2 and the power receiving coil Co1 provided on the mirror support 33 undergo magnetic field resonance, and power is supplied from the power feeding coil Co2 to the power receiving coil Co1 in a non-contact manner. The AC power received by the power receiving coil Co <b> 1 is converted into power applied to each load 35 by the converter 36 and supplied to each load 35. The ECU 6 outputs a control signal for controlling the load 35 according to the switch operation in the vehicle, and each load 35 is driven according to the control signal of the ECU 6.

  Further, the ECU 6 detects the rotational position of the mirror support portion 33 from the power reception level of the power reception coil Co1 detected by the power reception level detection circuit 37. The ECU 6 performs control such that, for example, when the mirror support portion 33 is in the closed position when the engine is started, the ECU 6 is in the open position. When the mirror support portion 33 is in the open position when the engine is stopped, the ECU 6 is in the closed position. Control to become.

  According to the above-described embodiment, the power feeding coil Co2 provided in the door main body 2 is fed in a non-contact manner to the power receiving coil Co1 provided in the door mirror 3, so that the wiring of the power feeding line between the door mirror 3 and the automobile body is unnecessary. it can. Further, the wiring between the door mirror 3 and the automobile body only needs to be a signal line for transmitting a control signal from the ECU 6, and wiring on the rotary shaft 31 is facilitated.

  Further, according to the above-described embodiment, since the power receiving coil Co <b> 1 is provided on the mirror support portion 33, it is not necessary to wire a feeding line to the rotating shaft 31.

  Further, according to the above-described embodiment, since the ECU 6 detects the rotational position of the door mirror 3 based on the power reception level of the power receiving coil Co1, there is no need to provide a position detection sensor separately from the power receiving coil Co1, and the cost can be reduced. Can be achieved.

  Note that, according to the above-described embodiment, the capacitors C1 and C2 are adjusted so that the power feeding efficiency is highest at the open position illustrated in FIG. 2A. However, the present invention is not limited to this. The power feeding efficiency may be highest at another position, for example, the closed position illustrated in FIG. 2B, or may be highest between the open position and the closed position.

  In the above-described embodiment, the rotational position of the door mirror 3 is detected from the power reception level of the power reception coil Co1, but the present invention is not limited to this. A sensor for detecting the rotational position of the door mirror 3 may be provided separately such as an infrared sensor.

  In the above-described embodiment, the power receiving coil Co1 is provided in the mirror support portion 33. However, the present invention is not limited to this. The power receiving coil Co <b> 1 may be provided on the door mirror 3, and may be provided on the stay 32, for example.

  Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Vehicle door 2 Door main body 3 Door mirror 6 ECU (position detection means)
31 Rotating shaft 32 Stay 33 Mirror support 34 Mirror Co1 Power receiving coil Co2 Power feeding coil

Claims (3)

In a vehicle door comprising a vehicle door body and a door mirror rotatably attached to the door body,
The door mirror is provided with a power receiving coil,
A door for a vehicle, wherein the door main body is provided with a power supply coil that supplies power to the power receiving coil in a non-contact manner. The door mirror is attached to the door body, and a stay provided with a rotation shaft, a mirror support portion rotatably attached around the rotation shaft of the stay, a mirror accommodated in the mirror support portion, Consisting of
The vehicle door according to claim 1, wherein the power receiving coil is provided on the mirror support portion.   The vehicle door according to claim 1, further comprising position detection means for detecting a rotational position of the door mirror based on a power reception level of the power reception coil.

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