JPH01148086A - Device for driving power window - Google Patents

Abstract

PURPOSE:To easily set the opening amount of a window by controlling the driving state of a motor in response to the operating time of a switch. CONSTITUTION:When the movable contact 6 of a switch 1 is connected to a stationary contact 2 in a short time, a base current is supplied from an ignition switch circuit IG through an automatic circuit 8 to a transistor Tr1. Thus, capacitors C1 and C2 are charged, and when the capacitor C1 is further completely charged, the capacitor C2 is discharged. A relay 12 is energized only for the charging and discharging time of the capacitor C2, and a motor 9 is normally rotated. If the contact 6 of the switch 1 is connected to the contact 2 for a long period or time, the relay 12 is energized for a predetermined time similarly to the above operation. After the predetermined time is elapsed, a current is subsequently supplied from the switch IG through the automatic circuit 8 and the switch 1 to the motor 9.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a power window drive device that opens and closes a window by operating a switch.

(Prior art) A power window drive device is designed to drive a motor in response to the operation of a switch to open and close the window, but the switch may be operated while driving, so The window opening/closing speed is set to high speed in order to shorten operation time.

(Problem to be solved by the invention) However, in such devices, the window opening/closing speed is set at high speed, so extremely delicate switch operations are required in order to obtain a small amount of opening. However, it was not possible to perform such delicate operations while driving because it was extremely dangerous.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a power window drive device that can open and close a window by a small amount with a simple operation.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a signal output circuit that outputs a signal for a certain period of time when a switch is operated, and a signal output circuit that outputs a signal for a certain period of time when the switch is operated for a period longer than a predetermined time. It is equipped with a switching circuit and a motor that rotates in response to a signal from the switching circuit to open the window.When the switch operation time is shorter than a predetermined time, the motor is rotated by a signal from the signal output circuit to open the window. The basic feature is that when the operation time is longer than a predetermined time, the motor is rotated in response to the operation of the switch.

(Example) Next, an example of the present invention will be described in more detail with reference to the drawings.

FIG. 1 is a diagram showing a first embodiment of the present invention, where l is a power window switch and an ignition switch circuit I
Fixed contacts 2 and 3 connected to G, fixed contacts 4 and 5 connected to ground, a movable contact 6 that is always connected to the fixed contact 4, and a movable contact 7 that is always connected to the fixed contact 5. When the operating knob (not shown) of the power window switch is operated in one direction, the movable contact 6 separates from the fixed contact 4 and connects to the fixed contact 2, causing the motor 9 (described later) to rotate in the normal direction to open the window, and the operating knob When operated in the other direction, the movable contact 7 connects to the fixed contact 3, reverses the motor 9, and closes the window. Although the auto circuit 8 is not shown in detail, when the operating knob of the power window switch 1 is pressed strongly, the electromagnetic circuit works to hold the operating knob in that position, and even when the operating knob is released, it automatically closes. The window is opened and closed, and when the opening and closing are completed, the electromagnetic circuit is cut off and the operating knob returns to its original position. The motor 9 rotates in the normal direction to open the window when the current flows in six directions, and rotates in the reverse direction to close the window when the current flows in the B direction. Signal output circuit! 0 are resistors R1-R2 and R3, transistor Tr 1. Differential circuit consisting of capacitor CI, diode DI, and resistor R4
・R5 and R6, transistor Tr2. capacitor C2,
A current is supplied from the ignition switch circuit IG through a constant voltage circuit I7 consisting of a diode D2, a resistor R7 and a Zener diode ZD, and a diode D3.
A switch operation signal is input from the switch via a signal stabilizing circuit 18 composed of resistors R8 and R9 and a capacitor C3. The switching circuit 11 includes a relay 12. Transistor Tr3. It is composed of a diode D4.

The relay 12 is connected to a relay coil 13, a fixed contact 14 connected to the ignition switch circuit IG, a fixed contact I5 connected to the movable contact 6 of the power switch I via the auto circuit 8, and a fixed contact 15 connected to the relay coil 12 at all times. 1
A movable contact 16 separates from the fixed contact 15 and connects to the fixed contact I4 when current flows through the contact I4.

Next, the operation of the first embodiment will be explained with reference to FIG.

■ When the operation knob is operated in either direction for a short period of time t1.

Turn the operation knob of power window switch 1 for a short time t1
When operated in either direction, the movable contact 6 connects to the fixed contact 2, and current flows from the ignition switch circuit IG through the auto circuit 8 to the base of the transistor Trl via the diode D3 and resistor R8, turning on the transistor Trl. . When transistor Trl turns on, current flows from ignition switch circuit IG to diode D2. Resistance R
7. The current flows to resistor R3, resistor R2, and capacitor C1, and capacitor CI is instantly charged. The base potential of the transistor Tr2 decreases and the transistor Tr2 is turned on only during an extremely short time t2 during which the capacitor CI is instantaneously charged. When transistor Tr2 turns on momentarily, current flows from ignition switch circuit IG to diode D2. Resistor R7, transistor Tr2. Resistor R4, capacitor C2
When the capacitor C2 is instantaneously charged and the transistor Tr2 is turned off, it starts discharging. Fixed time t during which capacitor C2 is instantaneously charged and then discharged
Since the base potential of the transistor Tr3 is higher by 3, the transistor Tr3 is turned on for this fixed time t3. Strictly speaking, the transistor Tr3 is on for a time of t2+t3, but the time t2 is so short that it can be ignored. When transistor Tr3 is turned on, relay 12
Current flows through the relay coil 13 and the movable contact 16 connects to the fixed contact 14. Movable contact 16 is a fixed contact! 4, current flows from the ignition switch circuit IG to the fixed contact 14.4. Movable contact 16° motor 9. auto circuit 8
．． Movable contact 7. Fixed contact 5, flows to ground, motor 9
You can open the window by rotating it forward. When a certain period of time t3 elapses, the transistor Tr3 turns off, the movable contact 16 of the relay 12 separates from the fixed contact I4, and the current is cut off, so the motor stops rotating and the window stops when it opens a certain amount. It has become.

■ If the operation knob is operated in either direction for a long time t4.

When the operating knob of the power window switch is operated in one direction, the signal output circuit turns on the transistor Tr3 for a certain period of time t3, similar to the operation in (2), and the movable contact 16 of the relay 12 also turns on the fixed contact 14 for a certain period of time t3. However, after a certain period of time, the movable contact 16 separates from the fixed contact 14 and connects to the fixed contact 15. However, in this case, the movable contact 6 of the power window switch l is connected to the fixed contact 2.
The current is connected to the fixed contact 2. from the ignition switch circuit IG to the fixed contact 2. Movable contact 6. Auto circuit 8. Fixed contact 15 of relay 12. Movable contact 16, motor 9. Auto circuit 8. Movable contact of power window switch l7.
Fixed contact 5. It flows to ground, continues to rotate the motor 9 in the normal direction, and opens the window. After that, when the operation of the operating knob is finished, the current is cut off and the window stops opening. That is, if the operating knob is pressed for a long time t4, the motor 9 rotates forward for that time t4, and the window opens.

■ When the operation knob is operated in the other direction.

When the operating knob of the power window switch 1 is operated in the other direction, the movable contact 7 connects to the fixed contact 3, and current flows from the ignition switch circuit IG to the fixed contact 3. Movable contact 7
．． Auto circuit 8. Movable contact 16 of motor 9° relay 12
．． Fixed contact 15. Auto circuit 8. Movable contact 6. Fixed contact 4. to ground, motor 9 reverses and closes the window.

Then, when the operation of the operation knob is completed, the window will stop closing.

In this embodiment, the volume VRI is the capacitor C2
For example, if the volume VRI is set so that the discharge time of capacitor C2 is 0.3 seconds, the charging time of capacitor C2 is Since it is momentary, it can be ignored, so turn the operation knob of the power window switch l to 0.
．． If the operation is performed in one direction within 3 seconds, the motor 9 rotates in the normal direction for 0.3 seconds and the window can be opened by that amount.

FIG. 2 is a diagram showing a second embodiment of the present invention, in which an off-time circuit 20 and a switching circuit 2 are used in the power window drive device of the first embodiment to prevent the motor 9 from rotating forward for a certain period of time.
For example, in the first embodiment, if the window opening time is desired to be 0.2 seconds, this can be done by adjusting the volume VRI. However, if the volume VRI is adjusted and set to 0.2 seconds, the operating knob of the power window switch 1 must also be operated quickly within 0.2 seconds. The window opening time is shorter than the operation time so that fine adjustments can be easily made. For example, if the operation knob is operated within 0.3 seconds, the motor 9 rotates forward for 0.2 seconds to open the window by that amount.

Hereinafter, parts that are the same as those in the first embodiment will be denoted by the same numbers, and their explanations will be omitted.

The off-time circuit 20 provided in this embodiment includes a resistor RIG
・R11-Rl2. A differentiation circuit consisting of a capacitor C4, a diode D6, resistors R13, R14, R15, and a transistor Tr4. The current is supplied from the ignition switch circuit IG through the constant voltage circuit 17, which is composed of a diode D2, a resistor R7, and a Zener diode ZD, and turns on the transistor Tr3. It is designed to operate when the The switching circuit 21 includes a relay 22. Transistor Tr5. It is composed of a diode D7. The relay 22 has a relay coil 23, an open fixed contact 24, and a fixed contact 25 connected to the motor 9.
and a movable contact 26 that is normally connected to the fixed contact 25 and connected to the fixed contact 24 when current flows through the relay coil 23.
It is made up of. Note that the discharge time of the capacitor C5 is set shorter than the discharge time of the capacitor C2 of the integrating circuit of the signal output circuit 10.

Next, the operation of the second embodiment will be explained with reference to FIGS. 3 and 4.

■ When the operation knob is operated in either direction for a short period of time t1.

Turn the operation knob of the power window switch l for a short time t1
When the switch is operated in one direction, the transistor Tr3 of the switching circuit 11 is turned on for a certain period of time t3 as in the first embodiment, and the movable contact 16 of the relay 12 is turned on as the fixed contact 1.
Connect to 4. (See FIG. 3) When transistor Tr3 turns on, current flows from ignition switch circuit IG to diode D2. Resistor R7, resistance R of off-time circuit 20
12, flows to resistor R11 and capacitor C4, and capacitor C4 is instantly charged. As shown in FIG. 4, the transistor Tr4 is turned on only for an extremely short time t5 during which the capacitor C4 is instantaneously charged. When the transistor Tr4 turns on momentarily, the current flows to the ignition switch circuit IG.
to diode D2. resistor R7, transistor Tr4.
The current flows through the resistor R13 and the capacitor C5, and when the capacitor C5 is instantaneously charged and the transistor Tr4 is turned off, it starts discharging. Since the base potential of the transistor Tr5 is high during a certain period of time t6 during which the capacitor C5 is instantaneously charged and then discharged, the transistor Tr5 is turned on for this certain period of time t6. Strictly speaking, the transistor Tr5 is turned on for a time tS+L6, but the time t5 is so short that it can be ignored. When the transistor Tr5 is turned on, current flows through the relay coil 23 of the relay 22, causing the movable contact 26 to separate from the fixed contact 25 and connect to the fixed contact 24. When the movable contact 26 separates from the fixed contact 25, the current flowing to the motor 9 is cut off and the motor 9 does not rotate. Thereafter, when time t6 has elapsed, the movable contact 26 of the relay 22 is connected to the fixed contact 25. When the movable contact 26 connects to the fixed contact 25, current flows from the ignition switch circuit IG to the fixed contact 14. of the relay 12 until time t3. Movable contact 16. Movable contact 26 of relay 22,
Fixed contact 25. Motor 9. Auto circuit 8. Movable contact 7.
Fixed contact 5. It flows to ground, rotates the motor 9 in the normal direction, and can open the window.

When time L3 elapses, transistor Tr3 turns off, and movable contact 16 of relay 12 separates from fixed contact 14.
Since the current is cut off, the motor 9 stops rotating and the window stops when it opens a certain amount. That is, motor 9
rotates in the normal direction for a period of time obtained by subtracting time t6 from time t3.

■ If the operating knob is operated in either direction t4 for a long time.

When the operating knob of the power window switch 1 is operated in one direction, the signal output circuit IO and the off-time circuit 20 operate in the same manner as in (2), and the window opens with a delay of time t6 compared to the first embodiment. That is, the motor 9 rotates in the normal direction for a period of time obtained by subtracting the time t6 from the time t4.

■ When the operation knob is operated in the other direction.

When the operating knob of the power window switch 1 is operated in the other direction, the movable contact 7 connects to the fixed contact 3, and current flows from the ignition switch circuit IG to the fixed contact 3. Movable contact 7
．． Auto circuit 8. Fixed contact 25 of motor 9° relay 22
．． Movable contact 26. Movable contact 16 of relay 12. Fixed contact 15. Auto circuit 8. Movable contact 6. Fixed contact 4. to ground, motor 9 reverses and closes the window. Then, when the operation of the operation knob is completed, the window will stop closing.

In this embodiment, the volume VR2 is the capacitor C5.
The discharge time of the capacitor C2 is adjusted to delay the opening of the window.
If the volume VRI is set so that the discharge time of capacitor C5 is 0.3 seconds, and the volume VR2 is set so that the discharge time of capacitor C5 is 0.1 seconds, the operation knob of the power window switch l is set to 0.3 seconds. When operated in one direction within seconds, the motor 9 rotates in the normal direction for 0.2 seconds, allowing the window to be opened by that amount.

In the first and second embodiments described above, slight adjustments can be made only when opening a window, but by applying this circuit, adjustments can also be made when closing a window.

(Effects of the Invention) As is clear from the above description, according to the present invention, the amount of window opening can be set extremely easily.
Operating the switch while driving is not dangerous and has the effect of improving safety.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of a first embodiment of the present invention, FIG. 2 is a circuit diagram of a second embodiment of the present invention, FIG. 3 is a diagram showing the operational relationship of each component of the first embodiment, and FIG. The figure is a diagram showing the operational relationship of each component of the off-time circuit 20 of the second embodiment. l...Power window switch, 9...Motor,
IO...Signal output circuit, 11/21...Switching circuit, 20...Off time circuit. Patent Applicant Nishin Co., Ltd. Figure 1-2 Part 3 Figure 4-4

Claims (1)

[Claims] (1) A signal output circuit that outputs a signal for a certain period of time when a switch is operated, a switching circuit that switches when the switch is operated for longer than a predetermined time, and a motor that rotates in response to the signal from the switching circuit to open the window. When the switch operation time is shorter than a predetermined time, the motor is rotated by a signal from the signal output circuit, and when the switch operation time is longer than the predetermined time, the motor is rotated according to the switch operation. A power window drive device characterized by: