JPS6088774A - Drive apparatus of electromotive power window - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a drive device for an electric power window, and more particularly to safety measures for an electric power window of an automobile.

(Prior Art) For automobiles, an electric power window is known in which the forward and reverse directions of a drive motor are switched by actuation of an ascending side contact and a descending side contact, respectively, and the wind crow is moved up and down.

This type of power window closes the window glass by pressing it against the frame side with considerable force in order to maintain a certain degree of airtightness inside the car.

For this reason, it is extremely dangerous if a child left in the car accidentally operates the switch and the wind crow continues to rise with a part of their body caught. However, conventional safety measures of this type have not been implemented. It was not particularly considered.

(Objective of the Invention) The present invention was made based on the actual situation described in H below, and provides a drive device for an electric power window that can eliminate dangers caused by erroneous operation of a switch of an electric power window. The purpose is to

(9:, Ming composition) To achieve this objective, according to the invention.

In an electric power window drive device in which the forward and reverse directions of the drive motor are switched by the operation of the ascending side contact and the descending side contact, respectively, and the wind crow is moved one step downward,
A stop state detection circuit which directly or indirectly detects that the automobile has stopped and opens the circuit, and connects a contact to the rising contact to the turntable 1.

A release circuit is provided which is connected in parallel with the contact of this circuit and disables the operation of this contact.

(Effects of the Invention) With the above configuration, according to the present invention, it is possible to provide an electric power window drive device that has the following effects.

+11) Since the power window cannot be raised when the vehicle is stopped, it is possible to avoid danger caused by children's erroneous operation.

(2) By providing a release circuit, the electric function of the power window can be kept alive through active operation by an adult.

(3) By providing a contact point that operates when the air conditioner is turned on or off as a release circuit, it is possible to make use of the electric function of the power windows by simulating that the vehicle is unoccupied.

(Example of the invention) Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The attached drawing shows a system diagram of an embodiment of the present invention, in which the polarity of the power supply 11 applied to the drive motor 1O is switched by the operation of the rising contact 12A and the falling contact 12B of the switch 12, and the motor 10 is set to the correct polarity. By reversing the windshield, the windshield is moved up and down.

In the illustrated state, the rising side contact 12A and the falling side contact 12
B are both in the off state, and the motor does not operate.

When the rising side contact 12A is changed from the state shown, motor 1
0 brush a has multiple normally closed contacts 13A, 13B,...
, 13C is connected to the positive terminal of the power supply 11 via the stop state detection circuit 13 having 13C. Brush b of motor 10 is connected to the negative pole of power supply 11 via contact 12B. Therefore, at this time, the motor 10 rotates forward, for example, and the window glass rises.

On the other hand, when the rising contact 12A is in the illustrated state and the descending contact 12B is changed from the illustrated state, the brush a of the motor 10 is connected to the negative electrode of the power source 11, and the brush b is connected to the positive electrode of the power source 11. At this time, the motor 10 is rotated in the reverse direction, for example, and the window glass is lowered.

As can be seen from the above, the switch 12 has a contact 12A.

12B can be in the on state, and both can be in the off state, but both cannot be in the on state.

As described above, the stop state detection circuit 13 is composed of a plurality of normally closed contacts 13A to 13C connected in series.

It is connected in series to the rising side contact 12A of the switch 12.

Each contact has 9, for example (1) contact 13A of the parking brake switch that detects when the parking brake is applied.
, (2) Contact point 13B of the door switch Sochi that detects when the door is opened, (3) The position where the shift lever is operated when the vehicle is stopped (neutral position for manual transmission vehicles, parking position for automatic transmission vehicles, etc.) (4) A contact 13C of a vehicle speed detection circuit that detects the vehicle speed and opens the contact when the vehicle speed becomes zero.

At least one of these contacts 13A to 13C is provided, and when there is an operation or movement corresponding to each contact, the contact opens and (-1 raising operation of the wind crow by the rising side contact 12A is disabled). Namely.

The system simulates the absence of a driver based on the actions that normally occur after the vehicle has stopped, and disables the windshield from raising, thereby preventing danger to children and others.

However, in cases such as those described above, where only children are riding and there is no particular danger, it is inconvenient to perform only the operations described above.

For this reason, a release circuit 14 is provided. The release circuit 14 is comprised of a plurality of normally closed contacts 14A and 14B connected to η along with the contacts 13A to 13C of the stop state detection circuit 13, and this release circuit 1 disables the operation of the contacts of the stop state detection circuit 13.
4 includes, for example, a contact 14A of a separate manual release switch (not shown) and a contact 14B that closes when the main switch (not shown) of the air conditioner is turned off.

Therefore, even if the contact of the stop state detection circuit 13 is opened, by operating the release switch or turning off the air conditioner, the window glass can be raised by one level.

Incidentally, although the ignition switch is not shown, it is a matter of course that when the ignition switch is turned off, the entire drive device stops operating.

This invention is not limited to the following embodiments, but includes various modifications as long as the objects of the invention can be achieved. for example.

Each of the contacts of the stop state detection circuit 13 and the release circuit 14 may include other contacts in addition to all the contacts described above, or may include only one of them. Further, although the purpose of the plurality of contacts in each circuit 13 and 14 is achieved by using the OR condition, it is also possible to configure the circuit by using the AND condition.

[Brief explanation of drawings]

The accompanying drawings are system diagrams of embodiments of the invention. IO...drive motor, 1...power supply, 12...switch. 12A...Rising side contact, 12B...Descent side contact, 1
3... Stop state detection circuit, 14... Release circuit. Patent applicant Nissan Shatai Co., Ltd. 1ν Agent Patent attorney Hiroyuki Fujiwara

Claims (1)

[Scope of Claims] (+) In an electric power window drive device that moves the windshield up and down by switching the forward and reverse directions of the drive motor by the operation of the rising side contact and the falling side contact, respectively, the automobile stops. a stop state detection circuit that directly or indirectly detects and opens the rising contact, and has a contact connected in series with the rising contact, and a release circuit that is connected in parallel with the contact of this circuit and disables the operation of this contact. A driving device for an auxiliary power window characterized by the following. (2) In the device according to item 1, the release circuit comprises: 1. A drive device for an electric power window, characterized in that at least one of the contacts is closed when a manual release switch and a main switch of an air conditioner are turned off. (3) In the device described in paragraph 1 or 2, the stop state detection circuit sets the parking brake switch that detects that the parking brake is applied, the door switch that detects that the door is opened, and the shift lever to the stopped state. An electric power window characterized by comprising at least one of a lever position detection switch that detects a position to be operated when the vehicle is operated, and a vehicle speed detection circuit that detects vehicle speed and opens a contact when the vehicle speed becomes zero. drive device 6