JPS6112426A - Power window controller - Google Patents

Abstract

PURPOSE:To realize highly reliable control in power window controller where opening/closing of window is controlled through a receiver with correspondence to the operation of dismountable transmitter having infrared beam transmitting section, by facing the infrared beam transmitting section against the infrared beam receiving section when mounting the transmitter onto the receiver. CONSTITUTION:Transmitter T is fixed dismountably to a receiver R fixed to the rear console C arranged to the left of the driver seat, and a command for opening/closing the window glass is provided through the receiver R to the control section by means of the infrared beam while corresponding to the operation of switches 3a-3d for opening/closing the right and left widow glasses of the transmitter T. In such system, the transmitter T is provided with infrared beam transmitting section or LED4b. While the receiver R is provided with infrared beam receiving section or photodiode 21. LED4b is located to face against the photodiode 21 when the transmitter T is contained in the receiver R, thereby even weak infrared beam can be detected reliably.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a power window control device for controlling a power window that opens and closes a glass window provided in a side door of an automobile.

[Prior art]

In recent years, electric power windows that control the opening and closing of window glass by operating a switch have become popular, and there is an increasing demand for converting conventional manual types to electric types. This modification involved installing and wiring a motor for opening and closing the window glass, and also provided a switch on the door to control the opening and closing of the glass.

However, in order to control the rotational direction of the motor, three wires are required, including a power supply wire and a control wire, and since these wires are thick, it is not easy to accommodate them in an existing door. For this reason, only the power wiring is connected to the motor installed in the door, and a control unit is installed anywhere in the car to control the rotation direction. It is possible to give instructions. However, portable transmitters need to have a built-in battery in order to improve their operability, but if the battery continues to discharge and you do not notice that the battery capacity has decreased, the infrared The strength of the windows was weak, making it impossible to open and close the windows.

[Object and structure of the invention]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a power window control device that can open and close a window even when the capacity of a battery in an operating section becomes low.

In order to achieve such an object, the present invention has a structure in which a portable transmitter equipped with an infrared light emitting section is detachably attached to a receiver having an infrared light receiving section provided on the vehicle body side, and the transmitter is attached to the receiver. When attached to the camera, the light emitting part and the light receiving part face each other.

Hereinafter, the present invention will be described in detail using drawings showing embodiments.

〔Example〕

1 and 2 are circuit diagrams showing an embodiment of the present invention, FIG. 1 being a circuit diagram of a transmitter, and FIG. 2 being a circuit diagram of a receiver. In the transmitter shown in FIG. 1, 1 is a battery;
2 is a transmitter, 3m, 3b.

3c and 3d are switches for controlling the opening and closing of the window glass of the side door; 4a and 4b are light emitting diodes that generate infrared rays;
5 is a light emitting diode for transmitting and indicating that infrared rays are being transmitted; 6a and 6b are transistors and Td diodes; 8 is a capacitor; 9a;

9b and 9c are resistors. Transmitter 2 switch 3a
When any one of the switches 3d to 3d is operated, a code signal corresponding to that switch is sent from terminal 2&. The switch 3a is for lowering the left door glass window, the switch 3b is for raising the left door glass window, the switch 3c is for lowering the right door glass window, and the switch 3d is for raising the right door glass window.

In Fig. 2, 10 is a relay, 10a to 10d are contacts of the relay 10, 11 is a transistor, 12a to 12e are diodes, 13g and 13b are resistors, a 14-wire reed switch, 15a and 15b are switches, and from the relay 10 The components up to the switch 15b constitute a switching circuit for switching the glass window opening/closing control signals for the front and rear doors. 20 is a constant voltage circuit, 21 is a photodiode for light reception, 22 is an amplifier circuit, 23 is a detection circuit, 24 is a decoder,
25 is a reset circuit, 28a to 28g are inverters, 2
7, 28, 29° 30. 31. 32, 33. 34 are relays, 27a.

28a, 29m, 30a, 31a, 32
a, 33m, and 34a are contacts of relays 27 to 34, and 35 to 38 are motors.

=3- Note that the Tanabata 35 is for opening and closing the window glass of the front left door, the motor 36 is for opening and closing the window glass of the front right door, the motor 3T is for opening and closing the window glass of the rear left door, and the motor 38 is for opening and closing the window glass of the rear right door. This is the motor that opens and closes the door window glass. Further, when the signal supplied from the detection circuit 23 indicates the falling glass of the left door, the decoder 24 sends out a detection signal of level "1" to the terminal 24a,
To indicate that the window glass of the left door is rising, set "1" to terminal 24b.
A level detection signal is sent to the terminal 24Q to indicate the lowering of the window glass of the right door, and a detection signal of the "1" level to the terminal 24d is sent to the terminal 24d to indicate the rise of the window glass of the right door.
” level detection signal is sent out.

Figure 3 shows rear console C on the left side of the driver's seat.
A receiver R attached to the receiver R and a transmitter T accommodated in the receiver R are shown. In the same figure, a switch 15a provided in the receiver R houses a photodiode 21, which is a light receiving section, inside the receiver R.
, switch 15b is a switch for forced control of the driver's seat window glass, which will be described later. The transmitter T has holes 5 for fixing in the thickness direction.
0 on the side and four parts for fixing in the longitudinal direction (not shown in this figure) to be described later.The hole 50 engages with the retaining piece 52 of the receiver R, A concave portion on the back side of the receiver R is fitted and fixed to the projection 53 of the receiver R. In addition, the second
A relay box in which the relays 17 to 34 shown in the figure are housed is installed at an arbitrary location within the automobile.

4 and 5 are a sectional view and a plan view of the receiver R, and FIG.
7 and 8 are a plan view, a side view, and a sectional view of the transmitter T. When transmitter T is accommodated in receiver R, transmitter T
The light emitting diode 4b is the photodiode 2 of the receiver R.
1, and a magnet 54 provided on the transmitter T shown in FIG.
It is located opposite to. In Figure 7, 5
Reference numeral 1 denotes the aforementioned longitudinal fixing recess, which is adapted to engage with the protrusion 53 shown in FIG. 3.

The operation of the device configured as described above is as follows. When the transmitter T is attached to the receiver R, the magnet 54 of the transmitter T shown in FIG. 8 turns on the reed switch 14 of the receiver R shown in FIG. 2, so that the transistor 11 is turned off. Therefore, the relay 1o does not operate and the connection positions of the contacts 10a to 10d are as shown in FIG. In this state, switch 3 on the transmitter T to lower the window glass of the left door.
When a is pressed, a code signal corresponding to the function of this switch is selected from the terminal 2a of the transmitter 2, and the light emitting diode 4
b transmits intermittently infrared rays in response to this code signal. Since the transmitter T is attached to the receiver R, the infrared rays sent out from the light emitting diode 4b are received by the photodiode 21 located at the opposite position and converted into an electrical signal.

The electrical signal generated by the photodiode 21 is sent to the amplifier circuit 2
2, the detection circuit 23 detects the signal, and the decoder 24
supplied to Since the signal sent at this time is a signal to open the window glass of the left door, the decoder 24
4a sends out a "1" level signal. Since this signal drives the relay 21 via the inverter 26&, the contact 27a of the relay 2T is controlled to the opposite position from that in FIG.

This rotates the motor 35 to lower the window glass of the left door, opening the window of the front left door.Next, switch 3+1 of the transmitter T is activated to close the window glass of the front left door. When pressed, decoder 24 outputs terminal 24
Since a signal of 1 lbel is sent to b, the relay 28 is driven, the motor 35 is reversed, and the window in the front left door is closed. Similarly, when the switch 3c of the transmitter T is pressed, the relay 29 is driven and the front right door window is opened, and the switch 3c is pressed.
When d is pressed, the relay 30 is activated and the front right door window is closed.0 When the transmitter T is removed from the receiver R, the reed switch 1
4 becomes open, relay 1o operates and contact 10
a to 10d are switched to the opposite side from that in FIG. If the switch of the transmitter T is operated in the same manner in this state, the infrared rays generated from the light emitting diode 4a are reflected inside the vehicle and are received by the photodiode 21 of the receiver R. This rotates the shimo motor 31 or 38, and controls the opening and closing of the window glass of the rear door. At this time, when the switch 15 & or switch 15b is operated, the relay 10 is turned off and the multi-contact points 10a to 10d return to the positions shown in the figure, and the signal generated by the switch operation is supplied to the output of the detection circuit 23 via the inverter 26a. Since the output signal of the detection circuit 23 is blocked, the signal from the transmitter T is no longer accepted. Therefore, when the driver operates the switch 15a or 15b to open or close the front door window, unless the signal emitted from the transmitter is blocked, the rear door window will not open or close. When I operated the transmitter T to do this,
Although there is an inconvenience that the window glass of the front door moves, this inconvenience does not occur with this circuit. And inverter 2
6bt or the signal supplied via the inverter 26c drives the relay 29 or 30, so the opening/closing control of the window glass of the front right door is forcibly performed regardless of the operation of the transmitter T. Also, when the battery 1 of the transmitter T has finished discharging and has no capacity, the transmitter T cannot control the opening and closing of the window glass, but if this switch is used, at least the front right door or Only the driver's window can be opened and closed.

The transmitter T is provided with a light emitting diode 5 for displaying transmission, which lights up when any one of the switches 31 to 3d is pressed.

Therefore, if the display of the light emitting diode 5 for indicating the transmitted light is monitored when the switch is suppressed, it can be determined whether the transmitter T is operating normally. On the other hand, the light emitting diode 4a is designed to generate infrared rays of sufficient strength even when the transmitter T is operated at hand.
If the light emitting diode 4a is attached to the photodiode 21, the infrared rays of the light emitting diode 4a cannot be detected by the photodiode 21, so the light emitting diode 4b is arranged to face the photodiode 21. At this time, the light emitting diode 4b can emit infrared rays to ensure control operation even if the current supplied thereto is sufficiently smaller than the current supplied to the light emitting diode 4a. Therefore, even if the voltage of the battery 1 drops and the window glass cannot be opened or closed with the transmitter T removed, as long as the value of the resistor 9c is set to an appropriate value, the transmitter T will be received. By installing it on Aircraft R, only the front window glass can be opened and closed.

In this way, since the operation unit for opening and closing the window glass is located almost in the middle of the car, it prevents children from operating the switch carelessly and there is no risk of them getting caught in the window glass. Both front and rear passengers can open and close the windows. In addition, conventionally, when modifying a power window, a total of three wires were required: the motor power supply wire and the control wire, and since these wires needed to carry a large current, they had to have a large wire diameter. However, according to the present invention, the wiring to the door only needs to be the power supply wiring for the motor, making it easy to accommodate this wiring inside the door.

FIG. 9 is a circuit diagram showing another embodiment, in which a transistor 6c, resistors 9d, 9e,
A reed switch 14m is provided, and when this transmitter is attached to a receiver, a magnet in the receiver provided at a position (not shown) opposite to the reed switch 14& is used to turn on the reed switch 14a. With this configuration, when the transmitter is attached to the receiver, unnecessary current of the light emitting diode 4a can be turned off, so current consumption is reduced and the usable time of the battery 1 is extended.

Figures 10 and 11 show other embodiments in which one light emitting diode is used for transmitting infrared rays, and the current flowing through the light emitting diode is changed depending on when the transmitter is attached to the receiver and when it is removed. This is what I did.

The transmitter T can be easily removed, and since the signal is transmitted using infrared rays, for example, if a sensor that detects infrared rays is installed in the garage, the driver can open the garage door while remaining in the car. It can also be used for other purposes.

〔Effect of the invention〕

As explained above, in this invention, when the transmitter is attached to the receiver, the light emitting part and the light receiving part face each other.
Even if the strength of infrared rays weakens to the point where you can no longer open or close the window glass at hand due to a drop in battery voltage, the infrared rays can be detected by attaching the transmitter to the receiver, so the battery voltage of the transmitter will drop. This has the effect of making it possible to control the opening and closing of the window glass.

[Brief explanation of drawings]

Figures 1 and 2 are circuit diagrams of a transmitter and receiver showing an embodiment of the present invention, Figure 3 is a perspective view of the transmitter and receiver mounted on a rear console, and Figure 4 is a receiver. 5 is a plan view of the receiver, FIG. 6 is a plan view of the transmitter,
Figure 7 is a side view of the transmitter, Figure 8 is a sectional view of the transmitter,
FIGS. 9 to 11 are block diagrams showing other embodiments. 1...Battery, 2...-Transmission unit, 3a to 3d, 15
-----Switch, 4m, 4b, 5...Light-emitting diode, 1411...Reed switch, 21##--Photodiode, 24--...Te: r-f, 10, 2
7 to 34...Adjusting L/-135 to 38...Motor, SO-...Hole, 51...Recess, 52...Engagement piece, 53...Protrusion.

Claims (1)

[Claims] A window provided on a side door of a vehicle according to the infrared rays emitted from the transmitter, comprising a receiver fixed in the vehicle and having an infrared light receiving section, and a transmitter having an infrared transmitting section and detachable from the receiver. 1. A power window control device for controlling the opening and closing of a power window, characterized in that when the transmitter is attached to the receiver, an infrared transmitting section is provided at a position facing an infrared receiving section of the receiver.