External door handle, in particular for vehicles
First Claim
1. External door handle, for a door of a motor vehicle, comprising:
- a stationary bracket (10) attached to an interior (11) of the door;
a grip (20) arranged on an exterior of the door, the grip being movable so as to act on a lock and serves to open and/or close the door when actuated;
wherein the lock can be switched between a locked and an unlocked position, wherein an actuation (24) of the grip (20) is nonfunctional in the locked position and functional in the unlocked position; and
at least one capacitive sensor on the door handle, which on an outer region of the door has active outer electrode (37;
47;
52;
67) and serves for locking and unlocking the lock;
wherein the outer electrode (37;
67) is arranged in the movable grip (20) and/or on a cover part (25) of the door handle arranged adjacent (22) to the grip (20) and senses the approach of or contact by an authorized person; and
wherein the authorized person carries with him means of identification for activating the capacitive sensor;
an electronic sensor circuit (28, 38) arranged on the stationary bracket (10) and active after identification of the authorized person;
at least one first, fixed inner electrode (35;
45;
55;
59) in the interior (11) of the door and connected with the electronic sensor circuit (28, 38) in the bracket (10) by an electrical line (44;
48;
54);
a second inner electrode (36;
46;
56) arranged in the interior (11) of the door cooperatively spaced to form a gap (39) with the first inner electrode (35;
45;
55;
59), the first inner electrode proximate to or on the second inner electrode coupled to the grip (20) and the second inner electrode movable with the grip (20) or the second inner electrode resting on the adjacent cover part (25), the adjacent cover part proximate to the first inner electrode;
wherein the second inner electrode (36;
46;
56) is connected to the outer electrode (37;
47;
52;
67) by an electrical line (34;
49;
60);
wherein the gap (39) simultaneously forms a separation between the electronic sensor circuit (28, 38) on the bracket (10) and the movable grip (20) or the adjacent cover part (25); and
wherein, at least in a rest position of the grip (20), an inner electrical coupling field (50.1;
50.2;
50.3;
50.4) is generated in the gap (39) between both inner electrodes (35;
45;
55) (36;
46;
56), which activates the outer electrode (37;
47;
52;
67) on an outer region of the door as a capacitive sensor.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to an external door handle consisting of a support (10), which is fixed to a door (11) and on which a handle (20) is mounted. In an unlocked position the handle acts on a lock and is inactive in the locked position of said lock. A capacitive sensor is provided to trigger the control of the lock, said sensor comprising an external electrode that is equipped with a sensor surface (37) and is located in the outer region of the door handle. To provide a wide range of configuration options for the location of the sensor surfaces, at least two additional internal electrodes are provided in the inner region of the external door handle, in addition to the sensor surface (37), said electrodes having active surfaces in the form of a transmission surface (36) and an excitation surface (35). An electric switching matrix (50.1), which is connected in series to the field of the sensor surface (37) that is active in the outer region of the external door handle, is generated between the two internal electrodes.
7 Citations
18 Claims
-
1. External door handle, for a door of a motor vehicle, comprising:
-
a stationary bracket (10) attached to an interior (11) of the door; a grip (20) arranged on an exterior of the door, the grip being movable so as to act on a lock and serves to open and/or close the door when actuated; wherein the lock can be switched between a locked and an unlocked position, wherein an actuation (24) of the grip (20) is nonfunctional in the locked position and functional in the unlocked position; and at least one capacitive sensor on the door handle, which on an outer region of the door has active outer electrode (37;
47;
52;
67) and serves for locking and unlocking the lock;wherein the outer electrode (37;
67) is arranged in the movable grip (20) and/or on a cover part (25) of the door handle arranged adjacent (22) to the grip (20) and senses the approach of or contact by an authorized person; andwherein the authorized person carries with him means of identification for activating the capacitive sensor; an electronic sensor circuit (28, 38) arranged on the stationary bracket (10) and active after identification of the authorized person; at least one first, fixed inner electrode (35;
45;
55;
59) in the interior (11) of the door and connected with the electronic sensor circuit (28, 38) in the bracket (10) by an electrical line (44;
48;
54);a second inner electrode (36;
46;
56) arranged in the interior (11) of the door cooperatively spaced to form a gap (39) with the first inner electrode (35;
45;
55;
59), the first inner electrode proximate to or on the second inner electrode coupled to the grip (20) and the second inner electrode movable with the grip (20) or the second inner electrode resting on the adjacent cover part (25), the adjacent cover part proximate to the first inner electrode;wherein the second inner electrode (36;
46;
56) is connected to the outer electrode (37;
47;
52;
67) by an electrical line (34;
49;
60);wherein the gap (39) simultaneously forms a separation between the electronic sensor circuit (28, 38) on the bracket (10) and the movable grip (20) or the adjacent cover part (25); and wherein, at least in a rest position of the grip (20), an inner electrical coupling field (50.1;
50.2;
50.3;
50.4) is generated in the gap (39) between both inner electrodes (35;
45;
55) (36;
46;
56), which activates the outer electrode (37;
47;
52;
67) on an outer region of the door as a capacitive sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
Specification