JPH0651462U - Opening / closing control device for opening / closing body - Google Patents

Abstract

(57) [Summary] [Purpose] When the pressure is detected during the closing operation of the opening / closing body, the opening / closing body is reliably opened. [Structure] The motor 9 is disconnected from the opening / closing operation switch 2 by an ON signal of the sensor 15 when the pressure is detected during the closing operation of the opening / closing body, and a drive current to the motor to move the opening / closing body in the opening direction. Is directly supplied from the power supply terminal 20. Further, the power supply voltage of the sensor control circuit 3 is supplied via the opening / closing operation switch only when the closing side of the opening / closing operation switch is selected. Therefore, when the pressure during the closing operation of the opening / closing body is detected, for example, when an object is sandwiched between the window glass and the window frame, the motor 9 is directly connected to the power source, so that the opening / closing body is opened. The opening operation can be reliably performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an opening / closing control device for an opening / closing body such as a power window, a sunroof, etc., and in particular, it uses a sensor for detecting the pressure during the closing operation of the opening / closing body so that the opening operation is automatically performed at the time of pressure detection. The present invention relates to an opening / closing control device for a switching opening / closing body.

[0002]

[Prior art]

 For example, as an opening / closing control device for an opening / closing body, there is a device as shown in FIG. 4, which opens / closes a window glass of an automobile by using a driving force of a motor. In the figure, reference numeral 1 denotes an opening / closing operation switch disposed on the driver's seat side, and a movable contact 1a for supplying a current in a predetermined direction to the motor 9 for moving the window glass in the opening direction, and the window glass is closed. It has a movable contact 1b for supplying an electric current in the opposite direction to the motor 9 to move it in the direction. In this case, reference numeral 2 denotes an opening / closing operation switch arranged on the passenger seat side, and like the opening / closing operation switch 1, a movable switch for supplying a current in a predetermined direction to the motor 9 for moving the window glass in the opening direction. It has a contact point 2a and a movable contact point 2b for supplying an electric current in the opposite direction to the one for moving the window glass in the closing direction. Reference numeral 3 denotes an opening / closing control circuit having a function of detecting the pressure when the window glass is closed, and both ends of the motor 9 and the input terminals 4 and 5 to which the movable contacts 2a and 2b of the opening / closing operation switch 2 are connected. It has output terminals 7 and 8 to which the child is connected. Normally, the terminals 4 and 7 and the terminals 5 and 8 are connected to supply current to the motor 9 based on the contact states of the opening / closing operation switches 1 and 2. When the pressure is detected during the closing operation of the window glass, connect the terminals 4 and 8 and the terminals 5 and 7 to supply the motor 9 with the current in the opposite direction. It is designed to move the windshield in the open direction.

[0003]

However, according to the device having the above configuration, the power is constantly supplied to the motor 9 through the operation switches 1 and 2, so that the object is caught in the windshield. At this time, if a contact failure occurs accidentally on each of the open / close operation switches 1 and 2, there is a risk that the object will be caught and there is a risk of causing such a situation. A good plan was desired. In addition, if there is a risk that an object will be caught in the windshield, it is only during the closing operation that continuous power consumption in the switching control circuit 3 is disadvantageous in terms of energy economy. It was also a material.

In view of the above problems of the prior art, the main object of the present invention is to open and close the opening and closing body reliably when the pressure is detected during the closing and opening operation of the opening and closing body. The purpose is to provide a switchgear.

[0005]

[Means for Solving the Problems]

 According to the present invention, the above-described object is provided between the opening / closing operation switch for moving the opening / closing body with the motor in the opening direction or the closing direction, and the motor and the opening / closing operation switch for selectively connecting them. A relay circuit, a sensor for detecting pressure during closing operation of the opening / closing body, and a drive signal to the relay circuit so as to disconnect the motor and the opening / closing operation switch by an ON signal of the sensor. When the motor is disconnected from the opening / closing operation switch by an ON signal of the sensor, a drive current to the motor to move the opening / closing body in the opening direction. It is achieved by providing an opening / closing control device for an opening / closing body, which is characterized by being directly supplied from a power source.

[0006]

[Action]

 With this configuration, the motor and the opening / closing operation switch are disconnected by the ON signal of the sensor when the pressure is detected during the closing operation of the opening / closing body, and the motor is driven to move the opening / closing body in the opening direction. Since the current is directly supplied from the power source, the opening / closing body can be surely operated for opening.

[0007]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an electric circuit diagram showing a configuration of an opening / closing control device for an opening / closing body to which the present invention is applied, for example, for opening / closing a windshield on the passenger side of an automobile. The opening / closing operation switch 1 connected to the positive terminal + of the battery (not shown) is, for example, disposed on the armrest on the driver's seat side (not shown), and the movable contacts 1a and 1b are normally connected to the negative terminal of the battery. Although it is grounded to the grounded GND, when the opening / closing body is moved in the opening direction by the user's operation, the movable contact 1a is moved to the fixed contact point 1c (open) side, and conversely the closing body is closed. When the movable contact 1b is moved to, the movable contact 1b is moved to the fixed contact 1d (closed) side so that each movable contact is connected to the plus terminal +. Further, the opening / closing operation switch 2 is arranged in an armrest (not shown) on the passenger seat side in this case, and has the same configuration as the opening / closing operation switch 1 described above, and is used for moving the opening / closing body in the opening direction. If the movable contact 2a is moved to the fixed contact 2c (open) side, the movable contact 2b is moved to the fixed contact 2d (closed) side to move the movable body in the closing direction. The contact is designed to be connected to the positive terminal +.

The open / close selection switch 2 is provided with the input / output terminals 4 and 5 of the open / close control circuit 3 also serving as a sensor control circuit, further via the normally closed contacts 6 a and 6 b of the relay 6, and the output terminal 7. , 8 are connected to both terminals of the motor 9. The input terminal 5 is connected to the sensor input terminal 14 through the diode 10 in the forward direction, the capacitor 11 and the resistor 12 in this order, and the diode 13 in the forward direction. A cord switch 15 is connected between the sensor input terminal 14 and GND, and the cord switch 15 closes the window glass 22 of the door 21 as shown in FIGS. 2 (a) and 2 (b). At this time, the upper edge of the window glass 22 is arranged at or near the position where it comes into contact with the seal member 24 provided in the window frame 23, and some pressure is applied to the switch 15, for example, the window glass 22. When an object is caught between the window frame 23 and the window frame 23, it is a sensor that is switched on by the pressing force.

A base of a PNP transistor 17 is connected to a node between the capacitor 11 and the resistor 12 via a resistor 16, and an emitter of the PNP transistor 17 is connected to a cathode of the diode 10. A resistor 18 is connected between the base and the emitter of the transistor 17, and its collector is grounded to the GND via the relay coil 6c of the relay 6 and the GND terminal 19.

The normally open contacts 6 d and 6 e of the relay 6 connect one terminal of the motor 9 to the plus terminal + via the power supply terminal 20 when the relay coil 6 c is excited, and The relay circuit is configured so as to ground the other terminal to GND.

Next, an operating procedure of the electric circuit having the above configuration will be described. The user operates the open / close operation switches 1 and 2 to supply the power supply voltage to the motor 9. For example, when it is desired to open the window glass 22, the movable contact 1a of the open / close operation switch 1 is connected to the fixed contact 1c side, or the movable contact 2a of the open / close operation switch 2 is connected to the fixed contact 2c side and the motor 9 is connected. By supplying an electric current in the direction indicated by arrow A in the figure, the motor 9 is driven (this rotation direction is forward rotation), and the window glass 22 is moved in the opening direction. When the window glass 22 is to be closed, the movable contact 1b of the opening / closing operation switch 1 is connected to the fixed contact 1d side, or the moving contact 2b of the opening / closing operation switch 2 is connected to the fixed contact 2d side, and the motor 9 The motor is driven by supplying a current in the direction indicated by arrow B in the figure (the rotation direction is reversed), and the window glass 22 is moved in the closing direction.

Here, when an object is caught between the glass 22 and the window frame 23 during the closing operation of the window glass 22, the cord switch 15 is turned on and its contact point is closed, so that the capacitor 11 is closed. While being rapidly charged, the base of the transistor 17 is reverse biased by the resistors 16 and 18, and the transistor 17 is turned on. When the transistor 17 is turned on, the relay coil 6c is excited and the relay contact is switched from the normally closed side to the normally open side, so that the current supplied to the motor 9 in the direction of arrow B in the figure is reversed. A current flowing in the direction of arrow A is supplied. Therefore, the motor 9 that has been rotating in the normal direction is rotated in the reverse direction, so that the window glass 22 moves in the opening direction. This inverting operation is performed while the transistor 17 is on for a time period determined by the capacitor 11 and the resistors 16 and 18.

As can be seen from the above operation, when an object is caught between the window glass 22 and the window frame 23 during the closing operation of the window glass 22, the drive current for driving the motor 9 in the reverse direction is the power source. Since it is directly supplied through the terminal 20, the glass 22 can be surely moved in the opening direction. In addition, since the current is supplied through the diode 10 only when the open / close operation switches 1 and 2 are operated to move the window glass 22 in the closing direction, the power is consumed only in this case, and the power is not consumed otherwise. Never consume. Therefore, since the power supply voltage is supplied to the sensor control circuit only during the closing operation that may be caught in the windshield, power is not usually consumed and a small power supply voltage can be efficiently used. .

FIG. 3 is an electric circuit diagram showing the configuration of another embodiment to which the present invention is applied. The same parts as those of the electric circuit shown in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. In this circuit, the diode 31 is connected to the input terminal 5 in the forward direction, the Zener diode 32 is connected in the reverse direction, the resistor 33 and the diode 34 are connected in the forward direction, and the sensor input terminal 14 is connected. Sensor switch 15 is connected. The base of a PNP transistor 37 is connected to the node between the Zener diode 32 and the resistor 33 via a capacitor 35 and a resistor 36, and the emitter thereof is connected to the cathode of the diode 31. A resistor 38 is connected between the base and the emitter of the transistor 37, and its collector is grounded to the GND via the resistors 39 and 40 and further via the ground terminal 19. The bases of NPN type transistors 41 are connected to the nodes of the resistors 39 and 40, and the collectors thereof are connected to the nodes of the resistors 33 and 34 via the diode 42 in the reverse direction. The emitter is grounded.

The collector of the transistor 41 is connected to the power supply terminal 20 through the resistors 43 and 44, and the diode 45 in the forward direction. The bases of PNP type transistors 46 are connected to the nodes of the resistors 43 and 44, the emitters thereof are connected to the power supply terminal 20, and the collectors thereof are connected to the cathodes of the diodes 31. The relay coil 6c of the relay 6 is connected between the node of the collector of the transistor 46 and the diode 31 and the emitter of the transistor 41.

Next, an operating procedure of the electric circuit shown in FIG. 3 will be described. Since the normal opening / closing operation is the same as the above-mentioned operation, the description thereof will be omitted. In this circuit, when an object is caught between the window 22 and the window frame 23 during the closing operation of the window glass 22, the cord switch 15 is turned on and its contact point is closed. The Zener diode 32 is connected in the opposite direction. The capacitor 35 is rapidly charged by this Zener voltage, and the bases of the transistors 37 are reverse biased by the resistors 36 and 38, so that the transistors 37 are turned on. When the transistor 37 is turned on, the base of the transistor 41 is biased by the resistors 39 and 40, and the transistor 41 is turned on.

When the transistor 41 is turned on, the transistor 46 is turned on and the relay coil 6c is excited to switch the relay contact from the normally closed side to the normally open side. The supplied current is inverted and the current is supplied in the direction of arrow A. Therefore, since the motor 9 which has been normally rotated is rotated in the reverse direction, the window glass 22 moves in the opening direction. At this time, even if the movable contacts of the open / close operation switches 1 and 2 are grounded to GND, the power supply voltage is supplied via the power supply terminal 20, so that the motor 9 can continue to rotate in the reverse direction. Further, even if the contact of the cord switch 15 is opened, the transistor 37 is kept in the ON state while the capacitor 35 is being discharged, so that the motor 9 can continue to rotate in the reverse direction.

Also in the above-described embodiment, the glass 22 can be surely moved in the opening direction, and even if the movable contacts of the open / close operation switches 1 and 2 are grounded to the GND, the capacitor 35 is provided. While the transistor 37 is being discharged, the transistor 37 remains in the ON state, and the motor 9 continues to rotate in the reverse direction. Also, in this embodiment, as in the above-described embodiments, power is not consumed except for the opening operation, and the power supply load can be reduced.

[0020]

[Effect of device]

 As is clear from the above description, according to the opening / closing control device for an opening / closing body of the present invention, when the pressure during the closing operation of the opening / closing body is detected, the motor is moved to move the opening / closing body in the opening direction. The driving current of is directly supplied from the power supply to surely operate the opening / closing body, so that the safety can be improved.

[Brief description of drawings]

FIG. 1 is an electric circuit diagram showing a configuration of an opening / closing control device for an opening / closing body to which the present invention is applied.

FIG. 2A is a side view showing an example in which a sensor is arranged on a window frame of a door, and FIG. 2B is a sectional view showing a part of the sensor in an enlarged manner.

FIG. 3 is an electric circuit diagram showing another embodiment of the present invention.

FIG. 4 is a block diagram showing a schematic configuration of a conventional opening / closing control device for an opening / closing body.

[Explanation of symbols]

 1, 2 Open / close operation switch 3 Open / close control circuit 4, 5 Input terminal 6 Relay 7, 8 Output terminal 9 Motor 10, 31 Diode 11, 35 Capacitor 15 Code switch 17, 37 Transistor 19 Ground terminal 20 Power supply terminal

Claims (1)

[Scope of utility model registration request] 1. An opening / closing switch for moving an opening / closing body with a motor in an opening direction or a closing direction, and a relay circuit provided between the motor and the opening / closing switch to selectively connect the motor and the opening / closing switch. A sensor for detecting the pressure during the closing operation of the opening / closing body; and a sensor control circuit for outputting a drive signal to the relay circuit so as to disconnect the motor and the opening / closing operation switch by an ON signal of the sensor. When the motor and the opening / closing operation switch are separated by the ON signal of the sensor, a drive current to the motor is supplied directly from the power source to move the opening / closing body in the opening direction. An opening / closing control device for an opening / closing body.