CIRCUIT ARRANGEMENT FOR AN ELECTRIC MOTOR POWERED BY A VOLTAGE SOURCE AND WITH REVERSIBLE DIRECTION OF ROTATION SUITABLE FOR PROVIDING DRIVING FORCE TO A WINDOW ELECTRIC SYSTEM IN A MOTOR VEHICLE.

Abstract

The electric motor with voltage supply connection, providing drive for a window-raising assembly in a motor vehicle, is connectable with two operative positions and a rest position, via a polarity reversing switch within a predetermined range of its rotary movement, the motor (10) also provides drive for a door-locking element (13). It is controlled for this action by an additional switch (40). The locking and unlocking process may be confined to times when the window is closed, and the additional switch may provide for window closure and for door locking and unlocking. Wiring and operation are simplified.

Claims

1. Ί 6 Industrie FACE STANDARD S.pA, Kiven ci Ica v :i ο ni alimen • · · · » , * · * by means of a reversing switch having two operating positions and a rest position, characterised by the fact that the electric motor (10), in a given range of its rotational movement, also serves to drive the door locking elements (13) and by the fact that the electric motor (10) can be controlled by means of an additional switch (40).

2. Circuit arrangement according to claim 1, characterised in that the range of rotational movement in which the door locking element (12) is driven, follows, at least partially, the range of rotational movement in which the window lift system (11) is operated or precedes it.

3. Circuit arrangement according to claim 1 or 2, characterised in that the locking and unlocking operation is possible only when the window stops, in particular: only when it is closed.

4. Circuit arrangement according to one of the preceding claims, characterised in that the window can be closed and the door locked and unlocked by means of 17 MCE STANDARD SpA industry 1' additional switch (^D). • · · · · ·<>·*· · (20) inversion, in addition to opening and closing the window, can also lock and unlock the door. - · ·• · · * ·**·• · *• · · i • · · · ,·<>··· from 1 to 3, characterised by the fact that only the window lift system (11) can be operated via the inversion switch (20) and only the door locking element (12) can be operated via the additional switch (40).

7. Circuit arrangement according to claim 1 or 2, characterised in that the window lift system (11) as well as the door locking element (12) can be operated independently of each other as well as: via the reversing switch (20) as well as via the additional switch (40).

8. Circuit arrangement according to the preceding claims, characterized in that the first terminal (10a) of the motor (10) is connected to a position switch (30) developed in the form of a two-way snap switch having hysteresis and said switch is directly or indirectly operated by said motor, so that during the lifting movement of the window, said position switch occupies a position of one? operation « · · · to and after the locking operation is completed, -catVi?.V. « · · • · * « i in its rest position and after the unlocking operation is completed it snaps back into its operating position and by the fact that in the rest position of the -,.,* •I · *·*, the reversing switch (20), the second terminal (ipb)*, ♦··· ♦ of the motor, by means of 1 *additional switch (40), preferably developed in the form of a two-way switch having zero position, and the first terminal (10a) of the motor (10) which is a function of the switching position of the position switch (50), are connected to the first or second terminal of the voltage source.

9. Circuit arrangement according to claim 6, characterised in that in the rest position of the reversing switch (20), the second terminal (1Ob) of the motor (10) is directly connected to the additional switch (40) via a bridge contact (22) of said reversing switch.

10. Circuit arrangement according to 3rd claim 8, characterised in that the reversing switch (20) has a third bridge contact (61) through which, in the rest position of the reversing switch (£0), the second terminal (10b) of the -notor is connected to the additional switch (40).

11. Circuit arrangement according to claim « « · «* • MI • · · • · • I · • · · · ♦ t • · ♦ * Φ * · 4 #* • · · * ·♦·* «li itti 19 Industrie FACE STANDARD S.pÀ &, characterized by the fact that the two contacts (21, 22) of the reversing switch (20) are connected to conductors (16, 19) which lead to the motor, by the fact that the.****. *>· φ *• · · * · contacts (23, 20; 25» 26) of the 1st switch ( 20) ·! · *· ·· inversion are alternately connected to the positive or negative terminal of the voltage source and by the fact that vn·; ****• * · breaking contact (24) is connected to a terminal (15) of the**; • — m* ····· the voltage source and the other breaking contact (22) &..! .. ·• · connected to the additional switch (40) and by the fact that*"**: * » » · A»1»·* in the rest position, the position switch (50) conducts the other potential (14) of the voltage source to a terminal (10a) of the motor.

12. Circuit arrangement according to claim 10, characterised in that the two bridge contacts (21, 22) of the reversing switch (20) are connected to the positive and negative terminals of the voltage source respectively, in that the working contacts (26, 23; 28, p5) simultaneously controlled by the bridge contacts (22, 21) are interconnected and are connected to the conductors (18, 19» i 16) leading to the motor and in that a 'break' contact (24) is connected to the motor conductor (10) leading to the position switch (50).

13. Circuit arrangement according to claim 12, characterised in that between the second terminal (10b) of the motor (10) and a working contact (26) of the reversing switch (20) an additional opening switch (60) is used which is closed during the movement of the window, · *··· 14. Circuit arrangement according to claims 1 to 7, characterized in that in the position of the reversing switch (20), and by means of its bridge contacts, the conductors (18, 19) which lead to the motor are connected to a control device (70) which short-circuits the motor depending on the position of the additional switch (<,o) or, alternatively, conducts positive or negative potential to the terminals (10a), (10b) of the motor.

1. Circuit arrangement according to claim 14, characterized in that a position switch ($0) is closed in circuit in themotor circuit and the fact that the position switch responds, during the unlocking operation, and in its operating position it short-circuits the motor for a short time, but, after a certain delay time has elapsed, it automatically trips and returns to its return position in which the motor circuit is closed.

16. Circuit arrangement according to claim 15* characterised in that the position switch (30) responds even when the window is closed, and in its operating position short-circuits the motor for a short time.

18. Circuit arrangement according to claims*·; .... * i» · · · w :? according to at least one of the preceding FACE STANDARD Industries Sp A. • · · * # * MI··, characterized in that several motors can be simultaneously controlled by at least one additional switch (,40) and by the fact that each motor (10) is assigned a reversing switch (20).

19. Circuit arrangement according to at least one of the preceding claims, characterised in that an unlocking operation can be released by an "inertia" switch (76). ···· « * * pp the authorised representative Industrie FACE STANDARD Spe