JPH05280254A - Vehicle power window device - Google Patents

Abstract

PURPOSE:To prevent occurrence of a shortcircuit even though metallic foreign object makes contact with a contact in a vehicle power source side switch in such a condition that a slide door is opened. CONSTITUTION:A door switch 14 adapted to be opened when a slide door 2 is closed, and a relay 21 incorporating a coil 22 adapted to be energized when the door switch 13 is closed, are provided on the vehicle body 1 side. A windshield pane elevating mechanism on the slide door 2 side is connected to a power source through normally closed contacts 24, 25, 26 in the relay 21. The door switch 14 and the relay may prevent a contact in a vehicle side power switch 9 from being applied with a voltage when the door 2 is opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle power window device suitable for use in an automobile having a sliding door.

[0002]

2. Description of the Related Art Recently, many automobiles are equipped with a power window device. In this case, the window glass lifting mechanism and the switch for controlling the lifting mechanism are usually provided on the door side. In a passenger car or the like in which a door is attached to a vehicle body by a hinge, power is supplied to electrical equipment provided inside the door by a wire harness that passes near the hinge.
Functions such as the power window can be operated in the same manner when the door is open and when it is closed.

However, in a vehicle employing a sliding door such as a rear door in a car for passengers and passengers, the sliding door has a structure not suitable for passing a wire harness. Therefore, a power supply switch that connects the slide door side with a contact point is used (see Japanese Utility Model Publication No. 64-356 as an example of this structure).

When the power feed switch is used to connect the vehicle body side and the slide door side with the contact point as described above, the connection can be made without using the wire harness. The contact is accidentally touched by a foreign metal object, resulting in a short circuit. Therefore, the contact is mounted at a position hidden when the sliding door is opened to solve this problem. However, in this case, the mounting position of the power feeding switch is restricted.

Further, even if the contacts are mounted in such a position as to be hidden when the sliding door is opened, it is not possible to fundamentally solve the problem that a foreign metal object accidentally comes into contact with the contacts to cause a short circuit. Japanese Patent Laid-Open No. 1-164647 discloses a technique for detecting the half-latch position of a sliding door, and Japanese Laid-Open Patent Publication No. 60-64647 discloses a technique for opening and closing the window even after the ignition switch is turned off. -123690 publications, but these do not solve the problem to be solved by the present invention.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of this point, and the contact is left in a position where it is exposed when the door is opened, and the contact is erroneously made of metal. An object of the present invention is to provide a power window device for a vehicle, which does not cause a short circuit even when the foreign matter is brought into contact with the vehicle.

[0007]

As a means for solving the above problems, the present invention provides a window glass lifting mechanism and a switch for controlling the lifting mechanism on the door side, and the lifting mechanism and the switch are installed in the door. In a vehicle connected so as to be connected to the power supply circuit on the vehicle body side when the door is closed, a door switch that opens when the door is closed on the vehicle body side and a relay that includes a coil that is excited when the door switch is closed are provided. The window glass lifting mechanism on the door side is connected to a power source and a main switch via a normally closed contact of the relay.

[0008]

With this structure, when the door is open, the door switch that closes excites the coil of the relay to open the normally-closed contact, so that the power supply and the main switch are electrically disconnected from the contact. It will be. Therefore, even if a metal foreign object comes into contact with the contact, a short-circuit accident will not occur due to that.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIG. Reference numeral 1 is a vehicle body, and 2 is a slide door attached to the vehicle body 1 so as to be openable and closable. A terminal 3 connected to a battery (not shown) and a terminal 4 connected to an ignition terminal of a main switch are provided on the vehicle body 1 side, and power supply lines 5 and 6 are connected thereto. Power supply line 5,
Reference numeral 6 is further connected to an electric component or an ignition circuit not shown.

Reference numerals 7 and 8 are terminals connected to the main switch of the power window. A vehicle body side power supply switch 9 is provided on the vehicle body 1, and a door side power supply switch 10 is provided on the slide door 2 at a portion facing the vehicle body side power supply switch 9.

A room lamp device 11 is provided on the vehicle body 1 side, and one end of the lamp 12 is connected to the power supply line 5 and the other end is connected to the movable contact 13a of the switch 13. The switch 13 selectively contacts the three fixed contacts 13b, 13c, 13d, the fixed contact 13b is not connected to any of them, and the fixed contact 13c is the door switch 14 described next.
It is connected to the fixed contact 14a of. The fixed contact 13d is grounded (vehicle body grounded). By this connection, the lamp 12 is lit when the movable contact 13a contacts the fixed contact 13d and when the door switch 14 is closed and the fixed contact 13c.

The door switch 14 has fixed contacts 14a and 14b and a movable contact 14c which are appropriately spaced apart from each other. The movable contact 14c is pushed by the sliding door 2 when the vehicle body 1 is closed. Rod that separates 14c from fixed contacts 14a and 14b
14d is installed. In addition, the movable contact 14c is fixed
A spring 14e is provided to push in the direction of contacting 14a and 14b. In this structure, the length and position of the rod 14d are set so that the movable contact 14c is fixed when the contacts 15, 16, 17 of the vehicle body side power supply switch 9 and the contacts 18, 19, 20 of the door side power supply switch 10 are in contact with each other. , 14b are set apart from each other. The door switch 14 automatically turns on the lamp 12 when the slide door 2 is opened at the time of getting on and off the vehicle at night.

A relay 21 is provided on the vehicle body 1 side,
The coil 22 is connected to the diode 23 in series and is connected to the power supply line 6 and the fixed contact 13c of the switch 13 of the room lamp device 11. By this connection, the ignition switch (not shown) is closed, and when the door switch 14 is closed (when the slide door 2 is opened), the coil 22 is energized and excited.

The relay 21 is provided with three normally-closed contacts 24, 25, and 26. The normally-closed contact 24 is connected between the power supply line 6 and the contact 15 of the vehicle body side power supply switch 9 and is normally closed. The contact 25 is connected between the terminal 7 and the contact 16. Furthermore, normally closed contact 26
Is connected between the terminal 8 and the contact 17. By this connection, when the door switch 14 is opened and the coil 22 is in the non-excited state, the contact 15 is given the potential from the power supply line 6, and the contacts 16 and 17 are supplied with the voltage from the terminals 7 and 8 respectively. Will be given.

The door 2 is provided with a power window switch 27. This power window switch 27 is provided with three terminals 28, 29, 30.
29 and 30 are contacts 18 and 1 of the door side power supply switch 10, respectively.
It is connected to 9 and 20. The fixed contact 32 of the changeover switch 31 is connected to the terminal 28 of the power window switch 27, and the fixed contact 33 of the changeover switch 31 is connected to the terminal 29. Further, the fixed contact 35 of the changeover switch 34 is connected to the terminal 30.
, And the fixed contact 36 of the changeover switch 34 is connected to the terminal 28.

The changeover switch 31 and the changeover switch 34 are interlocked with each other.
A power window motor 41 as a window glass lifting mechanism is connected to the movable contacts 37 and 38 of 34 through terminals 39 and 40. By this connection, the changeover switch that works together
Since the polarity of the power supply voltage applied to the power window motor 41 is reversed when the switch 31 and the changeover switch 34 are switched, the window glass is moved up or down by the mechanism linked to the power window motor 41. ..

The device thus constructed operates as follows. First, when the sliding door 2 moves to the left from the position shown in the figure and is closed to the vehicle body 1, the contacts 15, 16 and 17 of the vehicle body side power supply switch 9 are connected to the contacts of the door side power supply switch 10.
18, 19, 20 contact. At the same time, the door switch
The rod 14d of 14 is pushed by the sliding door 2 and retracted, and the movable contact 14c separates from the fixed contacts 14a and 14b and is turned off.

When the door switch 14 is turned off in this way, the coil 22 of the relay 21 is not energized, so that the normally closed contact is made.
24, 25 and 26 are turned on, and the power supply line 6 is connected to the fixed contact 32 and the fixed contact 36 of the power window switch 27 of the slide door 2.
Is applied. At the same time, since the fixed contacts 33, 35 are connected to the terminals 7, 8, the movable contacts 37, 38 of the changeover switch 31 and the changeover switch 34 are changed over to the fixed contact shown in the figure or a fixed contact opposite thereto, whereby the power window is changed. The motor 41 can be moved in the direction of raising the window glass or in the direction of lowering it.

Next, as shown in the figure, when the slide door 2 is opened from the vehicle body 1, the rod pushed by the slide door 2 is pushed.
14d is opened and the movable contact 14
Since c contacts the fixed contacts 14a and 14b, the coil 22 of the relay 21 is energized and excited. As a result, normally closed contacts 24, 2
Since 5 and 26 are turned off, the contact 1 of the vehicle body side power supply switch 9
No electric potential is applied to 5, 16, and 17. Therefore, at this time, the metal foreign matter is mistakenly removed from these contacts 15,
Contacting 16 and 17 will not cause a short circuit accident.

[0020]

Since the present invention is the vehicle power window device configured as described above, power is not supplied to the power feeding switch when the sliding door is open, and therefore a short-circuit accident due to a foreign object occurs. There is no. Further, this does not cause any restriction on the mounting location of the power feeding switch. A door switch for the room lamp device can be used, which is cost effective.

[Brief description of drawings]

FIG. 1 is a circuit diagram of an embodiment of the present invention.

[Explanation of symbols]

 1 vehicle body 2 sliding door 5 power supply line 6 power supply line 7 terminal 8 terminal 9 vehicle body side power supply switch 10 door side power supply switch 11 room lamp device 14 door switch 21 relay 22 coil 24 normally closed contact 25 normally closed contact 26 normally closed contact 27 power Wind switch 41 Power window motor

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI Technical indication H01R 13/00 7161-5E 13/66 9173-5E

Claims (1)

[Claims] 1. A vehicle in which a window glass lifting mechanism and a switch for controlling the lifting mechanism are provided on the door side, and the lifting mechanism and the switch are connected so as to be connected to a power supply circuit on the vehicle body side when the door is closed. A door switch that opens when the door is closed on the vehicle body side, and a relay provided with a coil that is excited when the door switch is closed, and the window glass lifting / lowering of the door side is provided via a normally closed contact of the relay. A vehicle power window device characterized in that the mechanism is connected to a power source and a main switch.