JPH11210317A - Waterproof power window device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof power window device capable of shifting to an operation mode against the ingress of water, upon the occurrence of the ingress into a vehicle. SOLUTION: This device has the first serial circuit of a switch 1 and a relay 2, the second serial circuit of a switch 3 and a relay 4, and a control IC 12. One end of the first serial circuit is connected to the connection point of the switch 3 and the relay 4, and the first terminal 4 of the control IC 12, while one end of the second serial circuit is connected to the connection point of the switch 1 and the relay 2, and the second terminal 5 of the control IC 12. Also, the relay 2 is energized via the selection of the switch 1, and a motor 11 is thereby made to rotate in a unilateral direction for lifting a window. On the other hand, the switch 3 is selected to energize the relay 4 and the motor 11 is thereby made to rotate in an opposite direction for lowering the window. In this case, the control IC 12 has a manual switch 14 connected across a power terminal 7 and a grounding terminal 8, and turns on the manual switch 14 during the operation thereof for causing power voltage to be outputted from the first terminal 4 and the second terminal 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof power window device, and more particularly, to a method of operating a window lowering switch to reliably open a door window when an automobile falls into water for some reason. The present invention relates to a waterproof power window device that can be used.

[0002]

2. Description of the Related Art In general, a power window device used in an automobile is flooded with a window up switch or a window down switch when the vehicle falls into the water, and the respective contacts of the switches are electrically insulated by flooding. Is difficult to maintain, and although the contacts of the window up switch and the window down switch are open, the contacts become electrically conductive through a relatively small resistance value. Even if the lowering switch is operated, the window lowering operation, that is, the window opening operation cannot be performed.

FIG. 3 is a circuit diagram showing an example of a circuit configuration of a main part of such a known power window device.

[0004] As shown in FIG. 3, the power window device includes a window raising switch 31, a window raising relay 32 and its contact 32 C, and a window lowering switch 3.
3, the window lowering relay 34 and its contact 34C,
An automatic window raising switch 35, an automatic window lowering switch 36, a window opening / closing motor 37, a control integrated circuit (hereinafter, referred to as a control IC) 38, and a vehicle power supply 3
It consists of nine.

[0005] A window up switch 31 and a window up relay 32 are connected in series between the vehicle-mounted power supply 39 and a ground point, and a window down switch 33 and a window down relay 34 are connected in series. Window lift switch 31
A connection point A of the window raising relay 32 is connected to a terminal of the control IC 38, and a connection point B of the window lowering switch 33 and the window lowering relay 34 is connected to a terminal of the control IC 38. Automatic window raising switch 35
Has one end connected to the connection point A and the other end connected to the terminal of the control IC 38, respectively.
One end is connected to the connection point B, and the other end is connected to a terminal of the control IC 38. Contact 32C of window rising relay 32
Has a movable contact at one end of the window opening / closing motor 37,
One fixed contact is connected to the vehicle-mounted power supply 39 and the other fixed contact is connected to the ground point. The contact 34C of the window lowering relay 34 is such that the movable contact is a window opening / closing motor 37.
The other fixed contact is connected to the vehicle-mounted power supply 39, and the other fixed contact is connected to the ground point. The terminal of the control IC 38 is connected to the vehicle power supply 39.

[0006] The power window device having the above-mentioned structure operates roughly as follows.

When the driver or the like operates the window lift switch 31
When the switch is operated, the contact closes and the window rise relay 3
2 is driven by the vehicle-mounted power supply 39. At this time, the contact 32C of the window raising relay 32 is switched, and the window opening / closing motor 37 rotates in one direction, whereby the window moves in the upward direction (window closing direction). When the operation of the window raising switch 31 is stopped, the contact is opened, the driving of the window raising relay 32 is stopped, the rotation of the window opening / closing motor 37 is stopped, and the window is stopped from rising. On the other hand, window lowering switch 3
When the user operates the switch 3, the contact is closed, and the window lowering relay 34 is driven by the vehicle-mounted power supply 39. At this time, the contact 34C of the window lowering relay 34 is switched, and the window opening / closing motor 37 rotates in the other direction, whereby the window moves in the lowering direction (window opening direction). Then, when the operation of the window lowering switch 33 is stopped,
The contact is opened, the drive of the window lowering relay 34 is stopped, the rotation of the window opening / closing motor 37 is also stopped, and the lowering of the window is also stopped.

When a driver or the like operates the automatic window raising switch 35, the contact is closed and
The window raising switch 31 is operated at the same time, and its contact is also closed. By closing the contact of the window raising switch 31, the window raising relay 32 is connected to the vehicle-mounted power supply 3.
9 driven by the above-mentioned window raising switch 31
Is operated in the same manner as when the
Rotates in one direction, whereby the window moves in the ascending direction (window closing direction). Further, by closing both the contact point of the window raising switch 31 and the contact point of the automatic window raising switch 35, the voltage of the connection point A is supplied to the terminal of the control IC 38 and the voltage of the connection point A in response to the supply of the voltage. In-vehicle power supply 3 at terminal
9 is latched and output, and this voltage is supplied to the window rising relay 32. Therefore, the operation of the automatic window raising switch 35 is stopped, the contact is opened,
At the same time, the operation of the window raising switch 31 is stopped,
Even if the contact is opened, the output voltage of the terminal is latched, so that the window raising relay 32 continues to be driven, and the window opening / closing motor 37 continues to rotate in one direction, whereby the window moves upward. Keep moving. The movement of the window in the upward direction is continued until the window is fully closed.

Similarly, the automatic window lowering switch 3
When the switch 6 is operated, the contact is closed and the window lowering switch 33 is simultaneously operated to close the contact.
Also in this case, the above-mentioned window lowering switch 33
Is operated in the same manner as when the
Rotates in the other direction, whereby the window moves in the downward direction (window opening direction). When both the contact of the window lowering switch 33 and the contact of the automatic window lowering switch 37 are closed, the voltage of the connection point B is supplied to the terminal of the control IC 38 and the terminal of the control IC 38, respectively. In-vehicle power supply 3 at terminal
9 is latched and output, and this voltage is supplied to the window lowering relay 34. Therefore, the operation of the automatic window lowering switch 36 is stopped, and the contact is opened,
At the same time, the operation of the window lowering switch 33 is stopped,
Even if the contact is opened, the output voltage of the terminal is latched, so that the window lowering relay 34 continues to be driven, and the window opening / closing motor 37 continues to rotate in the other direction, whereby the window moves in the lowering direction. Keep moving. The movement of the window in the downward direction is continued until the window is fully opened.

In the known power window device, when the vehicle falls into the water for some reason and is flooded in the window up switch 31 or the window down switch 33, the water between the contacts of the switches 31 and 33 is compared with water. Resistances 31R and 33R having small resistance values are connected to each other, and although the respective contacts of the window up switch 31 and the window down switch 33 are open, these are connected to the window up relay 32 and the window down relay 34. The output voltage of the vehicle-mounted power supply 39 is applied through the leakage resistors 31R and 33R, and the window-up relay 32 and the window-down relay 34 are simultaneously driven, or the window-up relay 32 and the window-down relay 34 are simultaneously driven half. As a result, their contacts 32C and 34C are simultaneously switched. Or a state, or, their contacts 32C, 34C is in a state not switched to any of the fixed contacts. As a result, the motor 37 is not driven to rotate. At this time, even if the driver of the automobile or the like operates the window lowering switch 33 to open the window, the window opening / closing motor 37 is not driven to rotate, and the window cannot be opened. As described above, the known power window device has a problem that when the vehicle falls into the water and is flooded, it is no longer possible to perform a normal window operation.

In order to solve such a problem, the applicant of the present invention has proposed a first switch having a one-circuit, two-contact first switch and a first relay, one end of which is selectively connected to a vehicle-mounted power supply or a ground point. A series circuit, a second series circuit including a second switch and a second relay, one end of which is selectively connected to a vehicle-mounted power supply or a ground point; and a control integrated circuit. The other end of the first series circuit is a second switch. The other end of the second series circuit is connected to the connection point of the first switch and the first relay, and the first relay is energized by contact switching of the first switch to turn the motor on and off. A waterproof power window device that rotates the motor in the other direction, raises the window, and activates the second relay by switching the contact of the second switch to rotate the motor in the other direction to lower the window. And special And it filed as No. Rights 9-335728.

FIG. 4 is a circuit diagram showing the configuration of the waterproof type power window apparatus proposed above.

As shown in FIG. 4, the waterproof power window device is a window lift switch 41 having one contact and two contacts.
, A window raising relay 42 and its contact 42C,
A circuit 2 contact window down switch 43, a window down relay 44 and its contact 44C, an automatic window up switch 45, an automatic window down switch 46, a first backflow prevention diode 47, a second backflow prevention diode 48, It comprises a third backflow prevention diode 49, a fourth backflow prevention diode 50, a window opening / closing motor 51, a control integrated circuit (hereinafter, referred to as a control IC) 52, and a vehicle-mounted power supply 53.

The movable contact of the window up switch 41, the third backflow prevention diode 49, the first backflow prevention diode 47 and the window up relay 42 are connected in series to form a first series circuit. The movable contact of the window down switch 43, the fourth backflow prevention diode 50, the second backflow prevention diode 48, and the window down relay 44 are connected in series to form a second series circuit. Window lift switch 4
1, a normally closed contact is grounded, and a normally open contact is
3 is connected. The other end of the window raising relay 42 is connected to a movable contact of the window lowering switch 43 and a connection point B1 of the fourth backflow prevention diode 50. The normally open contact of the window lowering switch 43 is grounded, and the normally open contact is connected to the vehicle-mounted power supply 53. The window lowering relay 44
The other end is connected to the movable contact of the window lowering switch 41 and the connection point A1 of the third backflow prevention diode 49. A connection point A2 between the third backflow prevention diode 49 and the first backflow prevention diode 47 is connected to a terminal and a terminal of the control IC 52, and a connection point B2 between the fourth backflow prevention diode 50 and the second backflow prevention diode 48 is a terminal of the control IC 52. And terminals.

[0015] The waterproof power window device having the above-described structure operates roughly as follows.

The driver or the like operates the window lift switch 41.
Is operated, the movable contact is switched from the normally closed contact side shown to the normally open contact side, and the voltage of the vehicle-mounted power supply 53 is changed to the switched window rising switch 41 and the third backflow prevention diode 4.
9. The first backflow prevention diode 47, the window raising relay 42, and the movable contact reach the ground point via the window lowering switch 43 which is switched to the normally closed contact side shown, and the window raising relay 42 is driven. At this time, the contact 42C of the window raising relay 42 switches the movable contact from the connection state shown to the reverse connection state, and the window opening / closing motor 5
1 is supplied with the voltage of the vehicle-mounted power supply 53, and the window opening / closing motor 51 rotates in one direction to raise the window and close the window. When the operation of the window raising switch 41 is stopped, the movable contact is switched to the normally closed contact side shown in the figure, and the voltage of the vehicle-mounted power supply 53 is reduced.
And the drive of the window raising relay 42 stops, so that the rotation of the window opening / closing motor 51 stops, the window stops rising, and the window is held at that position.

On the other hand, when a driver or the like operates the window lowering switch 43, the movable contact is switched from the normally closed contact side shown in the figure to the normally open contact side, and the voltage of the vehicle-mounted power supply 53 is changed. (4) The backflow prevention diode 50, the second backflow prevention diode 48, the window lowering relay 44, and the movable contact reach the ground point via the window raising switch 41 which is switched to the normally closed contact side shown, and the window lowering relay 44 is driven. Is done. At this time, the contact 4C of the window lowering relay 44 switches the movable contact from the connection state shown to the reverse connection state, the voltage of the vehicle-mounted power supply 53 is supplied to the window opening motor 51, and the window opening motor 51 rotates in the other direction. Then the window descends and opens. When the operation of the window lowering switch 43 is stopped, the movable contact is switched to the normally closed contact side shown in the figure, the voltage of the vehicle-mounted power supply 53 is blocked by the window lowering switch 43, and the drive of the window lowering relay 44 is stopped. Then, the rotation of the window opening / closing motor 51 is stopped, the lowering of the window is stopped, and the window is held at that position.

When a driver or the like operates the automatic window raising switch 45, the window raising switch 41 is simultaneously operated in conjunction with the operation, so that the movable contact of the automatic window raising switch 45 is closed and the movable contact of the window raising switch 41 is closed. Switching from the illustrated normally closed contact side to the normally open contact side is performed. By switching the movable contact of the window raising switch 41, the voltage of the vehicle-mounted power supply 53 is increased.
The voltage is applied to the window rise relay 42 via the third backflow prevention diode 49 and the first backflow prevention diode 47, and the window rise relay 42 is driven and the window opening / closing motor 51 is operated in the same manner as when the window rise switch 41 is operated alone. Rotates in one direction to raise the window and close the window. At this time, when the movable contact of the automatic window raising switch 45 is closed, the voltage of the vehicle power supply 53 is applied to the terminal of the control IC 52, and the control IC 52
Outputs the voltage of the vehicle-mounted power supply 43 supplied to the terminal to the terminal and supplies it to the window rising relay 42. here,
When the operation of the automatic window raising switch 45 is stopped and the operation of the linked window raising switch 41 is also stopped, the movable contact of the window raising switch 41 is switched from the normally open contact side to the normally closed contact side, and is passed through the window raising switch 41. The supply of the voltage of the vehicle-mounted power supply 53 to the window rise relay 42 is stopped, but the supply of the voltage of the vehicle-mounted power supply 53 output from the terminal of the control IC 52 is latched, and the supply of the voltage of the vehicle-mounted power supply 53 to the window rise relay 42 is stopped. As the supply is maintained, the window up relay 42 continues to be driven. Therefore, the window opening / closing motor 41 continues to rotate in one direction and keeps raising the window. The rising of the window is continued until the window reaches the top of the moving range and the window is fully closed.

Similarly, when a driver or the like operates the automatic window lowering switch 46, the window lowering switch 43 is simultaneously operated in conjunction with the operation, the movable contact of the automatic window lowering switch 46 is closed, and the window lowering switch 43 is closed.
Is switched from the illustrated normally closed contact side to the normally opened contact side. When the movable contact of the window lowering switch 3 is switched to the normally open contact side, the voltage of the vehicle-mounted power supply 53 is applied to the window lowering relay 44 via the window lowering switch 43, the fourth backflow prevention diode 50, and the second backflow prevention diode 48. Then, as in the case where the window lowering switch 43 is operated alone, the window lowering relay 44 is driven, and the window opening / closing motor 51 rotates in the other direction, lowers the window, and opens the window. At this time, since the movable contact of the automatic window lowering switch 46 is closed, the voltage of the vehicle-mounted power supply 53 is applied to the terminal of the control IC 52, and the control IC 52
Outputs the voltage of the vehicle-mounted power supply 53 supplied to the terminal to the terminal and supplies it to the window lowering relay 44. here,
When the operation of the automatic window lowering switch 4 is stopped and the operation of the interlocking window lowering switch 43 is also stopped, the movable contact of the window lowering switch 43 is switched from the normally open contact side to the normally closed contact side, and is passed through the window lowering switch 43. The supply of the voltage of the vehicle-mounted power supply 53 to the window lowering relay 44 is stopped, but the supply of the voltage of the vehicle-mounted power supply 53 output from the terminal of the control IC 52 is latched, and the supply of the voltage of the vehicle-mounted power supply 53 to the window lowering relay 44 is stopped. The supply is continued and the window lowering relay 4 continues to be driven. For this reason, the window opening / closing motor 51 continues to rotate in the other direction and keeps moving down the window. The lowering of the window is continued until the window reaches the bottom of the moving range and the window is fully opened.

Further, if the vehicle falls into the water for some reason when the window is in a completely closed state or a state in which the window is almost completely closed, the waterproof power window mounted inside the door is provided. The device is also flooded. In this waterproof power window device, although most of the components are waterproofed, the window lift switch 4
1. Since the window lowering switch 43, the automatic window raising switch 45, and the automatic window lowering switch 46 cannot perform a complete waterproofing process, the water slightly enters when flooded. Then, when water enters the window up switch 41 and the window down switch 43, as described above, a leakage resistance due to water having a relatively small resistance is connected between the movable contact and the normally open contact. But it is equivalent to
Since the normally closed contacts of the 1 and the window lowering switch 43 are connected to the ground, the voltage of the vehicle-mounted power supply 53 applied to the window raising switch 41 and the window lowering switch 43 is between the movable contact and the normally open contact. It flows to the ground point through the leakage resistance and the movable contact switched to the normally closed contact side,
It is not applied to the window up relay 42 and the window down relay 44. For this reason, the contact 42C of the window raising relay 42 and the contact 44C of the window lowering relay 44 are connected as shown in the drawing, and the window opening / closing motor 51
Is not driven to rotate.

In this state, when a driver or the like operates the window lowering switch 43, the contact of the window lowering switch 43 is switched from the normally closed contact side to the normally open contact side, and the contact between the normally open contact and the movable contact is changed. The leakage resistance due to the water connected to the contact becomes short-circuited due to the switching of the contacts, and at the same time, the normally-closed contact and the movable contact become open from the short-circuited state, and this time, the normally-closed contact and the movable contact A leakage resistance due to water is connected between the two. For this reason, the voltage of the vehicle-mounted power supply 53 is not
3, supplied to the window lowering relay 44 via the fourth backflow prevention diode 50 and the second backflow prevention diode 48;
The window lowering relay 44 is driven. Then, by driving the window lowering relay 44, the contact 44C is switched from the connection state shown to the reverse connection state, the voltage of the vehicle-mounted power supply 53 is applied to the window opening / closing motor 51, and the window opening / closing motor 51 is driven to rotate in the other direction. Is done. As a result, the window is lowered and the window is opened, so that a driver or the like can escape from the opened window.

[0022]

The waterproof power window device proposed above is operated by operating the window lowering switch 43 when the vehicle falls into the water and is flooded by the waterproof power window device. Although the window can be opened, the progress of flooding into the window lowering switch 43 is relatively slow, so that the entire waterproof power window device is flooded, and the window lowering switch 43 is operated at the time of flooding. Is possible only after a certain time has passed since the car fell into the water.

Until the waterproof power window device is completely submerged, a part of the waterproof power window device becomes unstable due to the influence of water, so that the reliability of the operation of the waterproof power window device is improved. Has a new problem that it is difficult to secure

The present invention solves all of these problems, and an object of the present invention is to provide a waterproof system which can immediately shift to a state in which it can cope with flooding when the vehicle is flooded. It is to provide a mold power window device.

[0025]

In order to achieve the above object, a waterproof power window device according to the present invention comprises: a driving terminal of a first relay in a first series circuit;
The driving terminal of the second relay in the second series circuit is connected to the second terminal of the control integrated circuit, and a manual switch is connected between the power supply terminal and the ground terminal of the control integrated circuit. Means for outputting a power supply voltage from the first terminal and the second terminal of the control integrated circuit by turning on the manual switch after the start of the flooding of the control integrated circuit.

According to the above means, the car falls into the water,
When flooding begins in the vehicle, the flooding occurs in the waterproof power window device, and a manual switch is turned on prior to the progress of the flooding.
The power supply voltage is output from the terminal and the second terminal, and the power supply voltage is supplied to each of the first relay for raising (closing) the window and the second relay for lowering (opening) the window. By operating the first switch for raising the window or the second switch for lowering the window, the window can be raised or lowered. In particular, if the window is lowered by operating the second switch, the window is opened. It is possible to escape quickly from the window.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a preferred embodiment of the present invention, a waterproof power window device comprises a one-circuit, two-contact first switch and a first relay, one end of which is selectively connected to a vehicle-mounted power supply or a ground point. A first series circuit, a second series circuit including a second switch having one circuit and two contacts, one end of which is selectively connected to a vehicle-mounted power supply or a ground, and a second relay, and a control integrated circuit. Other end of the second switch and the second switch
The other end of the second series circuit is connected to the connection point of the relay and the first terminal of the control integrated circuit, and the other end of the second series circuit is connected to the connection point of the first switch and the first relay and the second terminal of the control integrated circuit.
The first relay is energized by switching the switch to rotate the motor in one direction to raise the window, and the second relay is energized to rotate the motor in the other direction by switching the contact of the second switch. And lowering the window, wherein the control integrated circuit has a manual switch connected between the power supply terminal and the ground terminal, and when the manual switch is closed, the power supply voltage is applied from the first terminal and the second terminal. Output.

[0028] In a specific example of the embodiment of the present invention, the waterproof power window device is such that the manual switch comprises a push button switch.

In another specific example of the embodiment of the present invention, in the waterproof power window device, the manual switch is configured to be larger than the other switches, and the operation unit is covered with a removable cover. Things.

According to these embodiments of the present invention, the manual switch is connected between the power supply terminal and the ground terminal of the control integrated circuit, and the manual switch is turned on when the vehicle starts submerging. Since the power supply voltage is output from the first terminal and the second terminal to supply the first relay for raising (closing) the window and the second relay for lowering (opening) the window, the vehicle falls into the water, When the water enters the waterproof power window device, the manual switch is immediately turned on by operating the manual switch immediately, and the power supply voltage is output from the first terminal and the second terminal of the integrated circuit for control, and the first relay and the first relay are output. Since the power supply voltage is supplied to each of the two relays, at this time, the first switch for raising the window or the second switch for lowering the window is provided. Is operated to raise or lower the window. In particular, if the window is lowered by operating the second switch, the vehicle quickly escapes from the open window of the submerged vehicle. It becomes possible to do.

[0031]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a circuit diagram showing a main configuration of a first embodiment of a waterproof power window device according to the present invention.

As shown in FIG. 1, the waterproof power window device of the first embodiment includes a window raising switch (first switch) 1 composed of a switch having one contact and two contacts, a window raising relay 2 and its contact 2C. A window lowering switch (second switch) 3 comprising a switch having two contacts in one circuit, a window lowering relay 4 and its contact 4C,
Automatic window raising switch 5, Automatic window lowering switch 6, First backflow prevention diode 7, Second backflow prevention diode 8, Third backflow prevention diode 9, Fourth backflow prevention diode 10, Window opening / closing motor 11
A control integrated circuit (hereinafter, referred to as a control IC) 12,
An onboard power supply (battery) 13, a push button switch (manual switch) 14, a resistor 15, and a diode 16 are provided.

The movable contact of the window raising switch 1, the third backflow prevention diode 9, the first backflow prevention diode 7, and the window raising relay 2 are connected in series to form a first series circuit. The movable contact of the window down switch 3, the fourth backflow prevention diode 10, the second backflow prevention diode 8, and the window down relay 4 are connected in series to form a second series circuit. In the window lift switch 1, one fixed contact (normally closed contact) is grounded, the other fixed contact (normally open contact) is connected to the vehicle power supply 13, and the movable contact is connected to the anode of the third backflow prevention diode 9. Is done. The window up relay 2 has one end connected to the cathode of the first backflow prevention diode 7 and the other end connected to a connection point B1 between the movable contact of the window down switch 3 and the anode of the fourth backflow prevention diode 10. A connection point A2 between the anode of the first backflow prevention diode 7 and the cathode of the third backflow prevention diode 9 is connected to a terminal and a terminal (first terminal) of the control IC 12. The window lowering switch 3 has one fixed contact (normally open contact) grounded and the other fixed contact (normally open contact) connected to the vehicle power supply 13. The window lowering relay 4 has one end connected to the cathode of the second backflow preventing diode 8 and the other end connected to a connection point A1 between the movable contact of the window raising switch 1 and the anode of the third backflow preventing diode 9. A connection point B2 between the anode of the second backflow prevention diode 8 and the cathode of the fourth backflow prevention diode 10 is a terminal and a terminal (second terminal) of the control IC 12.
Connected to.

The automatic window raising switch 5 has a movable contact connected to the vehicle power supply 13 and a fixed contact connected to the control IC.
12 terminals. The automatic window lowering switch 6 has a movable contact connected to the vehicle-mounted power supply 13 and a fixed contact connected to a terminal of the control IC 12. The contact 2C of the window rising relay 2 has a movable contact of a window opening / closing motor 1
One fixed contact is connected to the vehicle-mounted power supply 13, and the other fixed contact is grounded. The contact 4C of the window lowering relay 4 has a movable contact connected to the other end of the window opening / closing motor 11, one fixed contact connected to the vehicle power supply 13, and the other fixed contact grounded.
The in-vehicle power supply 13 has a positive electrode connected to terminals and terminals (power terminals) of the control IC 12 and a negative electrode connected to ground.

Further, the push button switch 14 has a movable contact connected to a terminal of the control IC 12 and a fixed contact connected to a terminal (ground terminal) of the control IC 12. Resistance 1
5 and the diode 16 are connected in series between the terminal of the control IC 12 and the ground. In this case, the push button switch 14
On the driver's seat side, it is arranged near the installation position of the window up switch 1, the window down switch 3, the automatic window up switch 5, and the automatic window down switch 6, and is constituted by a large push button switch that stands out. The push-button switch 14 is usually covered with a removable cover so that the push-button switch 14 is not accidentally operated except in an emergency.

The waterproof power window apparatus of the first embodiment having the above-mentioned structure operates roughly as follows.

First, the operation of the vehicle when it is normal (when it is not flooded) will be described.

When a driver or the like operates the window lift switch 1, the movable contact switches from the illustrated normally closed contact side to the normally open contact side, and the voltage of the vehicle-mounted power supply 13 changes to the switched window lift switch 1, the third reverse flow. Prevention diode 9, first
The backflow prevention diode 7, the window raising relay 2, and the movable contact reach the ground point via the window lowering switch 3 which is switched to the normally closed contact side shown in the figure, and the window raising relay 2
Is driven. At this time, at the contact 2C of the window raising relay 2, the movable contact is switched from the connection state shown to the reverse connection state, the voltage of the vehicle-mounted power supply 13 is supplied to the window opening motor 11, and the window opening motor 11 is moved in one direction. Rotate. The rotation of the window opening / closing motor 11 in one direction raises the window and closes the window. Then, when the operation of the window raising switch 1 is stopped, the movable contact is switched to the normally closed contact side shown, and the supply of the voltage of the vehicle-mounted power supply 13 to the window raising relay 2 is prevented by the window raising switch 1, and the window raising is performed. Since the contact 2C of the relay 2 is in the connection state shown in the figure, the rotation of the window opening / closing motor 11 stops, the window stops rising, and the window is held at that position.

On the other hand, when the driver or the like operates the window lowering switch 3, the movable contact is switched from the normally closed contact side shown in the figure to the normally open contact side, and the voltage of the vehicle-mounted power supply 13 is changed. 4 Backflow prevention diode 1
0, the second backflow prevention diode 8, the window lowering relay 4, and the movable contact reach the ground point via the window raising switch 1, which is switched to the normally closed contact side shown, and the window lowering relay 4 is driven. At this time, at the contact 4C of the window lowering relay 4, the movable contact switches from the connection state shown to the reverse connection state, and the window opening / closing motor 11
Is supplied with the voltage of the vehicle-mounted power supply 13, and the window opening / closing motor 11 rotates in the other direction. Window opening / closing motor 1
The rotation of 1 in the other direction lowers the window and opens the window. Then, when the operation of the window lowering switch 3 is stopped, the movable contact is switched to the normally closed contact side shown in the figure, and the supply of the voltage of the vehicle-mounted power supply 13 to the window lowering relay 4 is prevented by the window lowering switch 3. Since the contact 4C of the relay 4 is in the connection state shown in the figure, the rotation of the window opening / closing motor 11 is stopped, the lowering of the window is stopped, and the window is held at that position.

When a driver or the like operates the automatic window raising switch 5, the window raising switch 1 is simultaneously operated in conjunction with the operation, the movable contact of the automatic window raising switch 5 is closed, and the movable contact of the window raising switch 1 is closed. Switches from the illustrated normally closed contact side to the normally opened contact side. When the movable contact of the window raising switch 1 is switched to the normally open contact side, the voltage of the vehicle-mounted power supply 13 is increased.
Third backflow prevention diode 9, first backflow prevention diode 7
Is applied to the window raising relay 2 to operate the window raising relay 2 in the same manner as when the window raising switch 1 is operated alone.
Is rotated in one direction, and the window is opened and closed by the rotation of the window opening / closing motor 11 in one direction. At this time, since the movable contact of the automatic window raising switch 5 is closed, the voltage of the vehicle power supply 13 is applied to the terminal of the control IC 12, and the control IC 12 outputs the voltage of the vehicle power supply 13 supplied to the terminal to the terminal. , To the wind-up relay 2. Here, when the operation of the automatic window raising switch 5 is stopped and the operation of the window raising switch 1 in conjunction therewith is also stopped, the movable contact of the window raising switch 1 is switched from the normally open contact side to the normally closed contact side, and the window is raised. Although the supply of the voltage of the vehicle-mounted power supply 13 to the window raising relay 2 through the switch 1 is stopped, the supply of the voltage of the vehicle-mounted power supply 13 output from the terminal of the control IC 12 is latched, and the vehicle-mounted power supply to the window raising relay 2 is latched. Since the supply of the voltage of the power supply 13 is continued, the window raising relay 2 continues to be driven. Therefore, the window opening / closing motor 11 continues to rotate in one direction and keeps raising the window. The rising of the window is continued until the window reaches the top of the moving range and the window is fully closed. In this case, the third backflow prevention diode 9 is a control IC
It is connected to apply all the voltage of the vehicle-mounted power supply 13 output from the terminal 12 to the window rising relay 2.

Similarly, when the driver or the like operates the automatic window lowering switch 6, the window lowering switch 3 is simultaneously operated in conjunction with the operation, the movable contact of the automatic window lowering switch 6 is closed, and the window lowering switch 3 is closed.
Is switched from the illustrated normally closed contact side to the normally opened contact side. When the movable contact of the window lowering switch 3 is switched to the normally open contact side, the voltage of the vehicle-mounted power supply 13 is applied to the window lowering relay 4 via the window lowering switch 3, the fourth backflow prevention diode 10, and the second backflow prevention diode 8. Then, as in the case where the window lowering switch 3 is operated alone, the window lowering relay 4 is driven, the window opening / closing motor 11 rotates in the other direction, and the window lowering motor 11 rotates in the other direction to lower the window. Let
Open the window. At this time, the movable contact of the automatic window lowering switch 6 is closed, the voltage of the vehicle power supply 13 is applied to the terminal of the control IC 12, and the control IC 12 outputs the voltage of the vehicle power supply 13 supplied to the terminal to the terminal. It is supplied to the descending relay 4. Here, when the operation of the automatic window lowering switch 6 is stopped and the operation of the window lowering switch 3 in conjunction therewith is also stopped, the movable contact of the window lowering switch 3 is switched from the normally open contact to the normally closed contact, and the window lowering is performed. Although the supply of the voltage of the vehicle power supply 13 to the window lowering relay 4 via the switch 3 is stopped, the supply of the voltage of the vehicle power supply 13 output from the terminal of the control IC 12 is latched, and the vehicle power supply to the window lowering relay 4 is latched. 13 voltage supply is continued and the window lowering relay 4
Continues to be driven. Therefore, the window opening motor 1
1 continues to rotate in the other direction and continues down the window.
The lowering of the window is continued until the window reaches the bottom of the moving range and the window is fully opened. In this case, the fourth backflow prevention diode 10 is connected to apply all the voltage of the vehicle-mounted power supply 13 output from the terminal of the control IC 12 to the window lowering relay 4.

Next, the operation when the vehicle is flooded (emergency) will be described.

Assuming that the vehicle falls into the water for some reason and is flooded in the vehicle, the waterproof power window device of the first embodiment mounted inside the door is sequentially flooded. In this case, when water infiltrates into the window up switch 1 and the window down switch 3, respectively, as described above, a leak resistance due to water having a relatively small resistance is connected between the movable contact and the normally open contact. However, since the normally-closed contacts of both the window-up switch 1 and the window-down switch 3 are connected to the ground, the on-board power supply 13 added to the window-up switch 1 and the window-down switch 3 The voltage flows to the ground point through the leakage resistance between the movable contact and the normally open contact and the movable contact switched to the normally closed contact, and is hardly applied to the window rising relay 2 and the window falling relay 4. . For this reason, the contact 2C of the window raising relay 2 and the contact 4C of the window lowering relay 4 are both connected as shown, and the window opening / closing motor 11 is not driven to rotate.

When a driver or the like operates the window lowering switch 3 in such a state, the contact of the window lowering switch 3 is switched from the normally closed contact side to the normally open contact side. The leakage resistance due to the water connected between the contacts becomes short-circuited due to the switching of the contacts, and at the same time, the connection between the normally closed contact side and the movable contact changes from the short-circuited state to the open state. A leak resistance due to water is connected between the movable contact and the movable contact. For this reason, the voltage of the vehicle-mounted power supply 13 is supplied to the window descent relay 4 via the window descent switch 3, the fourth backflow prevention diode 10, and the second backflow prevention diode 8 in the short-circuit state, and the window descent relay 4 is driven. . When the window lowering relay 4 is driven, the contact 4C
Is switched from the illustrated connection state to the reverse connection state, the voltage of the vehicle-mounted power supply 13 is applied to the window opening / closing motor 11, and
The window opening / closing motor 11 is driven to rotate in the other direction. The window is lowered and the window is opened by the rotational drive of the window opening / closing motor 11 in the other direction, so that the driver or the like can escape from the open window of the flooded automobile to the outside of the vehicle.

Before the above-described operation is performed, the waterproof power window device of the first embodiment is
Immediately after the flooding in the vehicle starts, the cover covering the push button switch 14 is removed, and the push button is pushed so that the movable contact of the push button switch 14 is closed and turned on. Then, when the push button switch 14 is turned on, the power supply voltage of the vehicle power supply 13 is applied to the terminal of the control IC 12, whereby the power supply voltage is output to the terminal of the control IC 12, and the window up relay 2 and the window down relay 4 Supplied. At this time, the window raising relay 2 and the window lowering relay 4 are both driven, and their contacts 2C, 4C are switched to the connection state opposite to the connection state shown in the figure, but the voltage of the vehicle-mounted power supply 13 is applied to the window opening / closing motor 11. Since the window opening / closing motor 11 does not rotate, the window does not open / close.

Here, when the driver or the like operates the window lowering switch 3, the contact of the window lowering switch 3 is switched from the normally closed contact side to the normally open contact side, and the other end of the window raising relay 2 is connected to the vehicle power supply 13. Since the voltage is applied, the driving of the window raising relay 2 is stopped, and the contact 2C is switched to the connection state shown in the figure. At this time, since the window lowering relay 4 is still in the driving state and the contact 4C has been switched to the connection state opposite to the connection state shown in the figure, the voltage of the vehicle-mounted power supply 13 is applied to the window opening / closing motor 11 and the window opening motor 11 is applied. The opening / closing motor 11 is driven to rotate in the other direction. The window is lowered and the window is opened by the rotational drive of the window opening / closing motor 11 in the other direction, so that the driver or the like can escape from the open window of the flooded automobile to the outside of the vehicle.

In this case, instead of the driver operating the window down switch 3, the window up switch 1
Is operated, the window can be closed by a function similar to the above-described function.

As described above, according to the waterproof type power window device of the first embodiment, the vehicle falls into the water, thereby immediately after the waterproof type power window device is immersed in water, that is,
If the push button switch 14 is pressed before water enters the window lowering switch 3, the push button switch 1
After pressing 4, by operating the window lowering switch 3,
Since it will be able to open the window automatically,
In addition to the functions of the conventional waterproof power window device, safety can be further improved.

FIG. 2 is a circuit diagram showing a main part of a waterproof power window apparatus according to a second embodiment of the present invention.

In FIG. 2, the same components as those shown in FIG. 1 are denoted by the same reference numerals.

The second embodiment is different from the first embodiment in that the automatic window raising switch 5 and the automatic window lowering switch 6 are omitted. It is noted that the automatic window raising switch 5 and the automatic window lowering switch 6 are not connected. Except for this, the configuration is the same as that of the first embodiment. Therefore, further description of the configuration of the second embodiment will be omitted.

In the operation of the second embodiment in the normal state (non-flooding state), when raising and lowering the window, an automatic (automatic window raising switch 5 and an automatic window lowering switch 6) are used. 2) The operation is almost the same as the normal operation of the first embodiment except that the operation cannot be performed. Therefore, further description of the normal operation of the second embodiment will be omitted.

The operation of the second embodiment when the vehicle is submerged in water (emergency) is exactly the same as the operation of the first embodiment in an emergency, and the operation and effect of the second embodiment are achieved. Is the same as the operation and effect of the first embodiment since the operation in the emergency is the same as the operation of the first embodiment. Therefore, further description of the emergency operation of the second embodiment and the operation and effect achieved by the second embodiment will be omitted.

In each of the above embodiments, an example in which the manual switch is the push button switch 14 has been described. However, the manual switch according to the present invention is not limited to the push button switch. Of course, the same function can be exerted even if another manual switch capable of performing the above operation is used.

In each of the above embodiments, the push button switch 14 is larger than the other switches.
Although an example in which the push button is covered with a cover has been described,
The manual switch according to the present invention is not limited to the push button switch 14 having such a configuration, and the size of the switch and the presence or absence of the cover can be appropriately selected according to the use state of the manual switch. is there.

[0057]

As described above, according to the present invention, the manual switch is connected between the power supply terminal and the ground terminal of the control integrated circuit, and the manual switch is turned on when the vehicle starts submerging. Since the power supply voltage is output from the first terminal and the second terminal to supply the first relay for raising (closing) the window and the second relay for lowering (opening) the window, the vehicle falls into the water. When the water is immersed in the waterproof power window device, the manual switch is immediately turned on by quickly operating the manual switch, and the power supply voltage is output from the first terminal and the second terminal of the control integrated circuit, and the first relay and Since the power supply voltage is supplied to each of the second relays, at this time, the first switch for raising the window or the second switch for lowering the window is operated. If the window can be raised or lowered by operating the second switch, the window can be quickly escaped from the open window of the submerged vehicle by operating the second switch. Therefore, there is an effect that it is possible to further improve the safety as compared with a waterproof power window device of this type already proposed.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of a waterproof power window device according to the present invention.
FIG. 2 is a circuit diagram illustrating a main configuration of the embodiment.

FIG. 2 shows a second embodiment of the waterproof power window device according to the present invention.
FIG. 2 is a circuit diagram illustrating a main configuration of the embodiment.

FIG. 3 is a circuit diagram showing an example of a configuration of a known power window device.

FIG. 4 is a circuit diagram showing an example of a configuration of a main part of a waterproof type power window device already proposed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Window up switch (1st switch) 2 Window up relay 2C Contact of window up relay 2 3 Window down switch (2nd switch) 4 Window down relay 4C Contact of window down relay 4 5 Automatic window up switch 6 Automatic window down switch 7 1st backflow prevention diode 8 2nd backflow prevention diode 9 3rd backflow prevention diode 10 4th backflow prevention diode 11 Window opening / closing motor 12 Control integrated circuit (control IC) 13 In-vehicle power supply (battery) 14 Push button switch (manual Switch) 15 resistor 16 diode

Claims (3)

[Claims] 1. A first series circuit comprising one circuit and two contacts of a first switch and a first relay, one end of which is selectively connected to a vehicle-mounted power supply or a ground point, and one end is selectively connected to the vehicle-mounted power supply or a ground point. A second series circuit consisting of a one-circuit, two-contact second switch and a second relay, and a control integrated circuit, the other end of the first series circuit being connected between the second switch and the second relay. And a second terminal of the second series circuit is connected to a connection point between the first switch and the first relay and a second terminal of the control integrated circuit. By energizing the first relay by switching the contact of the first switch to rotate the motor in one direction, raising the window, and energizing the second relay by switching the contact of the second switch, Motor in the other direction A waterproof power window device for rotating and lowering the window, wherein the control integrated circuit is connected to a manual switch between a power supply terminal and a ground terminal, and when the manual switch is closed, A waterproof power window device, wherein a power supply voltage is output from a first terminal and the second terminal. 2. The waterproof power window device according to claim 1, wherein the manual switch is a push button switch. 3. The manual switch according to claim 1, wherein the manual switch is configured to be larger than the other switches, and the operation unit is covered with a removable cover.
Or the waterproof power window device according to 2.