JPS6077687A - Automatic opening and closing device of window for vehicle - Google Patents

Abstract

PURPOSE:To obtain the safety by inverting a rotary motor when the value of a load detection signal exceeds the value of a reference signal due to the generation of an open state detection signal of a window. CONSTITUTION:When a window 20 is disposed in an open state, a detection switch 110 generates a low level signal. When a movable contact 41 of an operation switch 40 is contacted with stationary contact 42 in this state, an RS flip- flop 50a is set, and a motor M is rotated normally. When a window 20 is fully closed, a load detection voltage generated from a load detecting resistor 120 becomes a reference voltage or higher. Since the switch 110 generates a high level signal at this time, the flip-flop 50a is reset, and the motor M is stopped. When a load detecting voltage becomes a reference voltage or higher in the closing step of the window 20, the flip-flop 50a is reset, and 50b is set, and the motor M is reversely rotated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle window opening/closing device, and more particularly to an automatic vehicle window opening/closing device suitable for automatically opening/closing a vehicle window.

Conventionally, this type of automatic vehicle window opening/closing device includes a rotary electric motor that is connected to a vehicle shaft and opens the window when the vehicle rotates in the forward direction and closes the window when the vehicle rotates in the reverse direction; an operating means that generates an operating signal and is operated to generate a second operating signal when the window is closed; and in response to the first operating signal, the rotary electric motor of EiiJ is actuated, and a second operation No. 16 of OjJ is operated. Some groove bottoms are provided with drive means for reversing the rotary electric motor in response.

However, in such a (16 structure), even if an object is caught between the window and its window frame during the automatic closing process of the window, the automatic closing operation of the window may continue. There was a problem that there was no.

The present invention has been made in response to the above-mentioned problems, and its purpose is to prevent an object from being caught between the window and the window frame in the above-mentioned automatic vehicle window opening/closing device. The purpose is to detect and control the automatic closing operation of the window to be reversed to the opening operation.

In order to achieve this object, the structural features of the present invention are as follows:
The automatic vehicle window opening/closing device described above includes an open state detection means that detects when the window is in an open state and generates an open state detection signal, and an open state detection means that detects an electrical load of the rotary motor and generates a load detection signal. load detection means for generating a predetermined normal value of the electrical load as a reference signal; and a reference signal generating means for generating a predetermined normal value of the electrical load as a reference signal; and signal generating means for generating a reversing signal for reversing the rotary electric motor and applying it to the driving means.

However, by configuring the present invention in this way, even though the open state detection signal is generated during the closing process of the window, the detection signal is not detected due to an object interposed between the window and its window frame. When the electrical load on the rotating electric motor increases beyond its predetermined normal value, the drive means stops the rotation under the control of the signal generating means in cooperation with the load detecting means and the reference signal generating means. Since the closing operation of the window is automatically reversed to the opening operation by reversing the electric motor, there is a problem that the closing operation of the window stops when the object of the frame is caught between the windows 7 and 7. As a result, various inconvenient situations that are expected to occur due to the closing of the window, such as damage to the object and breakage of the window, can be prevented. safety can be ensured.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
The figure shows a vehicle door, and this door has a door body 10.
A window 2o is arranged above the window 2o. Door body 1
0 has an inner plate 11 and an outer plate 12 placed vertically with a space between them, and between the inner plate 11 and the outer plate 12, a rotary electric motor M and this rotary electric motor are mounted on the inner wall of the outer plate 12. A coupling mechanism 30 interlocked with the rotation of the DvJ machine M is assembled.

The coupling machine fM 30 controls the direction of rotation of the rotary electric motor M from the outer plate 1.
The outer plate 1 has a bevel gear train 31 that converts the rotation direction along the inner wall of the outer plate 1.
A spur gear 62 that rotates along the inner wall of 2 is pivotally supported.

Further, the connecting mechanism 30 has a pair of connecting rods 33, 34, and these connecting rods 33, 34 are relatively attached to the outer panel 12 along its inner wall at respective intermediate portions where they overlap each other. Rotatably supported.

A sector gear 34a that meshes with the spur gear 32 is formed at the lower end of the connecting rod 34.
a rotates so as to rotate the connecting rod 64 clockwise in response to the rotation of the spur gear 32 in the counterclockwise direction shown in FIG. 1 (corresponding to the normal rotation direction of the rotary electric motor M), and In response to the clockwise rotation of the spur gear 32 (corresponding to the reverse direction of the rotary electric motor M), the connection +164 is rotated counterclockwise.

The window 20 is composed of a window frame 21 formed above the outer panel 12 and a window glass 22. The window glass 22 is formed upward along the opening formed by the window frame 21 and the inner wall of the outer panel 12. (or downward) to close (or open) the window 2o. In such a case, the upper end of the connecting rod 33 is rotatably supported relative to the right end of the lower edge of the window galanu 22, and one side connecting +F 3
9, the upper end of 4 is relatively slidably connected within a long groove 22a provided laterally in the left side of the lower edge of the window glass 22;
The upward movement (or downward movement) of the window galanu 22 is caused by sliding and connection along the long groove 22a (-13 It is brought about by rotation in the direction.

Next, the configuration of the automatic opening/closing device for the window 20 will be explained. As shown in FIG. Operation 7 with DC power supply BK connected
, inch 40, and the RS connected to this operation switch 40.
BS flip-flop 51 connected to flip-flop 5Da and operation switch 40 via ○R game f 60b
] b, a relay 70 connected between the R,S flip frog 5071 and the rotary motor M, and a relay 80 connected between the RS flip frog 501) and the rotary motor M.
The operating switch 4o closes the fixed contact 42 of the movable contact 41 when the ignition switch 1G is closed.
(or 46), the power supply voltage from the DC power supply B is generated at the fixed contact 42 (or 46), and when the movable contact 41 is in the neutral state, both fixed contacts 42 and 43 are connected to the power supply voltage of the DC power supply B. cut off from

The RS flip-flop 50a is set at its set terminal S by receiving the voltage supplied from the fixed contact 42 of the operating unit 4o, and generates a high level signal from its output terminal Q. Further, the RS flip-flop 50a is reset by receiving a high level signal from an OR gate 6oa, which will be described later, at its reset terminal R, and generates a low level signal from its output terminal Q. The RS flip-flop 50b receives, at its set terminal S, a # voltage from the fixed contact 43 of the operating unit 4o or a high level signal from an AND game (to be described later) 90 through an OR gate 6ob, and is set. Generates a high level signal from. Also, the RS frig frontop 50b has its reset terminal R.
It is set in response to a high level signal from a comparator 100, which will be described later, and a low level signal is generated from the output terminal Q.

The relay 70 consists of an electromagnetic coil/I/71 that is excited (or demagnetized) in response to a high level signal (or low level signal) from the output terminal Q of the RS flip-flop 5oa, and a double-throw switch 72. , the double-throw terminal 72 has a fixed contact 72/l, a fixed contact 72b connected to the DC power supply B via the fuse F and the ignition terminal G,
Double-throw contact 72c connected to the first input terminal of the rotating electric motor M
When the electromagnetic coil 71 is demagnetized, the double-throw contact 72c is connected to the fixed contact 72 (l Vc contact δ),
In addition, in response to the excitation of the electromagnetic coil 71, the double-throw contact 72c is fixed (direct current is
A power supply voltage generated from the ignition switch G and the fuse II'' is applied to the first input terminal of the rotary electric motor M in order to cause the rotary electric motor M to rotate in the normal direction.

An electromagnetic coil 81 that is excited (or demagnetized) in response to a high level signal (or a low level signal) from the output terminal Q of the relay 3Q [, RS flip-flop 501), and a double-throw nut 82, The double-throw switch 82 has a fixed contact 82a, a fixed contact 82'b connected to the DC power supply 1XAB via a fuse F and an ignition switch G, and a double-throw contact 82 connected to the second input terminal of the rotary motor M.
c, the double-throw contact 82C is connected to the fixed contact 82a under demagnetization of the electromagnetic coil (I7B), and the double-throw contact 82C is connected to the fixed contact 82b in response to the excitation of the electromagnetic coil 81. A power supply voltage generated from the DC power source B via the ignition switch G and the fuse F is applied to the second input terminal of the rotary motor M in order to reverse the rotation of the rotary motor M.

As shown in FIG.
When the window 20 is not in the fully closed state, it maintains the closed state and generates a low level signal, and the window 20 is fully closed by the window glass 22. When the low level signal is opened, the low level signal disappears. The load detection resistor 120 is grounded at one end and connected to the double-throw switch 72 at the other end.
Fixed contact 72a of , and fixed contact 82 of double-throw nui nochi 82
a, and the armature current of the rotating motor M is connected to the circumferential contact 72θ and the double-throw contact 72c of the double-throw switch 72 (or the fixed contact 82a and the double-throw contact 82 of the double-throw switch 82).
c) and is generated as a load detection voltage.

The pair of voltage dividing resistors 130a and 130b are connected in series with each other, and the voltage dividing resistor 130b is grounded at one end, and the voltage dividing resistor 130a and the fuse F are connected at the other end.
and is connected to the DC power supply B via the ignition switch G. Therefore, the voltage dividing resistor 130b cooperates with the voltage dividing resistor 130a to supply a voltage '1' generated from the DC power supply B via the ignition switch G and the fuse F.
1i voltage is divided and this is used as a reference voltage by voltage dividing resistor 130.
It originates from the common end with a. In such a case, the voltage dividing resistor 13
The reference voltage from 0b is the abnormal value of the armature current that occurs in the rotary motor M when an object is caught between the window frame 21 and the window pane 22 when the window 20 is closed (hereinafter referred to as abnormal armature current) corresponds to

The comparator 100 compares the load detection voltage from the load detection resistor 120 with the reference voltage from the voltage dividing resistor 130b, generates a signal when the load detection voltage is equal to or higher than the reference voltage, and converts this high level (v) signal to the load It is extinguished when the detection voltage is lower than the reference voltage. AND gate 90 generates a high level signal to be applied to OR gate 60tl in response to a high level signal from comparator 100 under the control of inverter 90a which responds to a low level signal from detection switch 110. It's Sword, A N D Gate Q
The Vinebell signal from O is vanished in response to the disappearance of the high level signal from the comparator 100, and is P-controlled by the inverter 90a and vanished in response to the disappearance of the Lownbell signal from the detection switch 110.

In this embodiment configured as described above, if the window 20 is fully open, the detection switch 110 continues to generate the low level signal.

In this state, if the movable contact 41 of the operation switch 40 is connected to the fixed contact 42 with the ignition switch G closed, the RS flip frog 50a will turn off the ignition from the DC power supply B at the set terminal S. Suinoche G1 fuse F, operation ('F) Receives the power supply voltage through the movable contact 41 and fixed contact 42 of the F switch 40 and generates a high level signal from the output terminal Q. In response, the relay 70 activates the electromagnetic coil 71. The double-throw contact 7 of the double-throw switch 72 is energized by
2c is connected to the fixed contact 72b.

Then, the rotary motor M receives the power supply TL pressure from the DC power supply B at its first input terminal through the ignition switch G, the fixed contact 721 of the fuse F1 double-throw switch 72, and the double-throw contact 72C, and becomes positive. , the coupling mechanism 30 reduces the relative angle between the two couplings A, 3 and 34,
Window 20 begins to close by moving window glass 22 up. Therefore, when the window 20 is fully closed due to the upward movement of the window glass 22, the load detection voltage generated from the load detection resistor 120 is
When the armature current from the rotary motor M increases and becomes equal to or higher than the reference voltage from the voltage dividing resistor 1301), the comparator 100 generates a high level signal, and the RS flip-flop 50a responds to the high level signal from the comparator 100. is reset under the control of OR gate 60.6 to produce a low level signal from output terminal Q, in response to which relay 70 demagnetizes electromagnetic coil /l/ 71! l
The double-throw contact 72c of the l double-throw switch 72 is connected to the fixed contact 72b.
The rotary electric motor M stops its forward rotation, and in cooperation with the coupling mechanism 30, the upward movement of the window glass 22 is stopped.

By the way, in the process of closing the window 20 mentioned above, suddenly,
Assuming that some object is caught between the window glass 22 and the window frame 21, as the mechanical load on the rotary motor M increases, the armature current from the rotary motor M increases and the load detection resistor increases. The load detection voltage from the detection switch 120 increases.When the increased load detection voltage reaches a value corresponding to the abnormal armature current from the rotary motor M, the comparator 1QO detects the low level signal from the detection switch 110. During generation, a high level signal is generated in relation to the reference voltage from the voltage dividing resistor 1 and Ob.

Then, the RS frig frontop 50θ becomes the comparator 1.
In response to the high level signal from 00, it is reset by the OR gate 60a and a low level signal is generated from the output terminal Q, and in response, the rotary motor M cooperates with the relay 70 to connect the rotary motor M twice. to stop its normal rotation. As a result, the window glass 22 immediately stops moving upward in cooperation with the coupling mechanism 30. Then, A N D
When the gate 1-90 generates a high level signal in response to the high level signal from the comparator 100 under the control of the inverter 90a which responds to the low level signal from the detection switch 110, the RS flip-flop 501)
The OR gate 60b responds to the high level signal from the output terminal Q and outputs a high V level signal from the output terminal Q.
In response to the I/ signal generated, the relay 80 connects the double throw contact 82C of the double throw switch 82 to the fixed contact 82b by the I/J force of the electromagnetic coil 81.

Next, the rotary motor M receives the DC power supply B through its second input terminal from the ignition switch G1, the fuse F1, the fixed contact 82b of the double-throw switch 82, and the double-throw contact 8? The coupling machine J7/j 30 increases the relative angle between the two coupling rods 33, 34 and the window 20 begins to open by moving the pane 22 downward. However, window 2
0 is fully opened due to the downward movement of the window glass 22, the load detection voltage generated from the load detection resistor 120 is ? u Voltage dividing resistor 1301 as armature current increases
), the comparator 10O generates a high level signal, in response to which the RSS free lag flop 50 is set and generates a low level signal from the output terminal Q, and the relay 80 outputs a low level signal from the electromagnetic coil 81. By demagnetizing the double-throw contact 82c of the double-throw switch 82, the fixed contact 8
21), the rotary electric motor M stops its reverse rotation, and in cooperation with the coupling mechanism 60, the lower movement of the volitional glass 22 is stopped.

As explained above, in this embodiment, if some object suddenly becomes caught between the window frame 21 and the window glass 22 during the closing process of the window 20, the load detection resistor 120 detects the abnormal armature current from the rotary motor M as a load detection voltage, and the comparator 100 compares the load detection voltage with the reference voltage from the voltage dividing resistor 130b to generate a high level signal and output the OR gate 60 (2). QRS in collaboration with
The flip-flop 50a is reset, the rotary motor M is cut off from the DC power supply B by the relay 70 and stopped, and the closing operation of the window 20 is immediately stopped in cooperation with the coupling mechanism 60, and the AND gate 90 detects this. Under the control of inverter 9011+, which responds to the low level signal from switch 110, a high level signal is generated in response to the high level signal from comparator 100, and a high level signal is generated in response to the high level signal from OR gate 60b.
Set the RS flip frog 5011) by
In addition, since the rotating electric motor M is immediately reversed by the relay 80 and starts opening the window 20 after stopping, the object can be removed without unnecessary pressure between the window frame 21 and the window glass 22. As a result, safety can be ensured by preventing various inconvenient situations expected to occur due to continued closing of the window 20, such as damage to the object and breakage of the window 20.

In the above embodiment, an example was described in which the detection switch 110 was used as the open state detection means for the window 20, but the present invention is not limited to this. It may be employed as the open state detection means. In such a case, the output signal from the photoelectric conversion means is set to a high level when the window 20 is open, and is set to a low level when the window 20 is fully closed, and the inverter 9012 is omitted. You may.

In the above embodiment, an example was described in which the load detection resistor 120 was employed as a means for detecting the armature current from the rotary motor M, but the present invention is not limited to this, and for example, a Hall element may be employed as the detection means. It's okay.

1. In the above embodiment, an example was explained in which the present invention is applied to a window 20 in which the window glass 22 moves up and down, but the present invention is not limited to this. The present invention may also be applied and implemented.

[Brief explanation of the drawing]

FIG. 1 is a structural diagram of a vehicle door window, and FIG. 2 is an electric circuit diagram of the automatic window opening/closing device shown in FIG. Explanation of symbols M...Rotary electric motor, 20...Window, 30...Connection mechanism, 40...Operation switch, saa, sob...R
S flip-flop, 60 (1,60b---OR gate, 70.80...relay, 90...AND'7'
-), 90a... Inverter, 100... Comparator, 110... Detection switch, 120... Load detection resistor, 130a, 130tl... Voltage dividing resistor. Applicant Nippondenso Co., Ltd. Agent Patent Attorney Teru Hase - Figure 1 Figure 2

Claims (1)

[Claims] a rotary electric motor connected to a window of the vehicle to open the window when the vehicle rotates in the forward direction and close the window when the vehicle rotates in the reverse direction; an automatic opening/closing device comprising: an operating means for generating two operating signals; and a driving means for rotating the rotating electric motor in the normal direction in response to the first operating signal and rotating the rotating electric motor in the reverse direction in response to the second operating signal. In the apparatus, an open state detection means detects when the window is in an open state and generates an open state detection signal; a load detection means detects a 711 mechanical load of the rotary motor and generates a load detection signal; a reference signal generating means for generating a predetermined normal value of the electrical load as a reference signal; and a reference signal generating means for generating a predetermined normal value of the electrical load as a reference signal; An automatic opening/closing device for a vehicle window, characterized in that the automatic opening/closing device for a vehicle window is provided with a signal generating means for generating a reversing signal and applying it to the driving means.