权利要求：
Claims
1. Kitchen appliance (1) including at least one kitchen appliance base (2) and at
least one preparation module (3), wherein the kitchen appliance base (2)
includes at least one electrical interface (7) and at least one receiving region
(4), wherein the preparation module (3) includes at least one electrical counter-
interface (8) for electrical contacting with the electrical interface (7), wherein the
electrical interface (7) includes at least two power contacts (7a) and at least
one auxiliary contact (7b), and wherein the electrical counter-interface (8)
includes at least two power counter-contacts (8a) and at least one auxiliary
counter-contact (8b),
characterized in that
the power contacts (7a) and the power counter-contacts (8a) as well as the
auxiliary contact (7b) and the auxiliary counter-contact (8b) are designed and
configured such that the power contacts (7a) are electrically contacted with the
power counter-contacts (8a) at a different point in time than the auxiliary
contact (7b) is electrically contacted with the auxiliary counter-contact (8b).
2. Kitchen appliance (1) according to claim 1,
characterized in that
the power contacts (7a) and/or the auxiliary contact (7b) and/or the power
counter-contacts (8a) and/or the auxiliary counter-contact (8b) are disposed on
a notional, common circular path at different angular positions with respect to
each other, or that the power contacts (7a) and/or the auxiliary contact (7b)
and/or the power counter-contacts (8a) and/or the auxiliary counter-contact (8b)
are disposed on notional, different circular paths having different radii, each at
different angular positions.
3. Kitchen appliance (1) according to claim 1 or 2,
characterized in that
at least one of the power contacts (7a) and/or at least the auxiliary contact (7b)
of the electrical interface (7), in particular during and/or after the disposing of
the preparation module (3) in the receiving region (4), is movable on the kitchen
appliance base (2) from a rest position at least toward a contact position,
and/or that at least one of the power counter-contacts (8a) and/or at least the
auxiliary counter-contact (8b) of the electrical counter-interface (8), in particular
during and/or after the disposing of the preparation module (3) in the receiving
region (4), is movable on the preparation module (3) from a rest position at
least toward a contact position.
4. Kitchen appliance (1) according to one of claims 1 to 3,
characterized in that
the power contacts (7a), the power counter-contacts (8a), the auxiliary contact
(7b) and the auxiliary counter-contact (8b) are manufactured from an
electrically conductive material, and that at least one contact surface (16) of the
power contacts (7a), the power counter-contacts (8a), the auxiliary contact (7b)
and/or the auxiliary counter-contact (8b) is at least partially provided with a
coating for reducing the transition resistance, in particular with a coating made
of an alloy that contains at least gold and/or silver.
5. Kitchen appliance (1) according to one of claims 1 to 4,
characterized in that
the power contacts (7a), the auxiliary contact (7b), the power counter-contacts
(8a) and/or the auxiliary counter-contact (8b) is/are at least indirectly movable
by a drive unit (17), preferably that the drive unit (17) includes at least one
motor (18) and at least one gear (19), in particular at least one spur-, conical-,
and/or worm-gear (19a), or includes at least one transmission (20).
6. Kitchen appliance (1) according to claim 5,
characterized in that
the kitchen appliance base (2) includes at least one drive lever (21), that the
drive lever (21) is at least indirectly, in particular directly, movable, in particular
rotatable, by the drive unit (17), and that at least one of the power contacts
(7a), at least the auxiliary contact (7b), at least one of the power counter-
contacts (8a), and/or at least the auxiliary counter-contact (8b) interacts/interact
with the drive lever (21) such that a movement of the drive lever (21) effects a
movement of at least one of the power contacts (7a), at least the auxiliary
contact (7b), at least one of the power counter-contacts (8a), and/or at least the
auxiliary counter-contact (8b) from the rest position into the contact position.
/. Kitchen appliance (1) according to one of claims 3 to 6,
characterized in that
at least one of the power contacts (7a), at least the auxiliary contact (7b), at
least one of the power counter-contacts (8a) and/or at least the auxiliary
counter-contact (8b) is/are disposed on at least one contact carrier (23), and
that the contact carrier (23) together with the at least one power contact (7a), at
least the auxiliary contact (7b), the at least one power counter-contact (8a)
and/or at least the auxiliary counter-contact (8b), is movably held, preferably
that the contact carrier (23) is formed from a flame-retardant plastic.
8. Kitchen appliance (1) according to claim 6 or 7,
characterized in that
the drive lever (21) includes at least one cutout (27) for interacting with at least
one drive projection (24) of the contact carrier (23), in particular that the cutout
(27) is shaped such that a rotation of the drive lever (21) effects a translational
movement of the contact carrier (23).
9. Kitchen appliance (1) according to one of claims 3 to 8,
characterized in that
the kitchen appliance base (2) includes at least one contact carrier module
(25), that in the rest position the power contacts (7a) and/or the auxiliary
contact (7b), in particular the contact carrier (23), aref/is introduced into the
contact carrier module (25), and that in the contact position the power contacts
(7a) and/or the auxiliary contact (7b), in particular the contact carrier (23), at
least partially protrude from the contact carrier module (25).
10. Kitchen appliance (1) according to claim 9,
characterized in that
on a circumferential surface (28) of the contact carrier module (25) in the rest
position, a gap (30) is formed between the contact carrier (23), in particular a
head region (31) of the contact carrier (23), and the contact carrier module (25)
such that the risk of a liquid entry is minimized, preferably by at least one
sealing means being disposed between contact carrier (23) and contact carrier
module (25).
11. Kitchen appliance (1) according to one of claims 1 to 10,
characterized in that
the kitchen appliance base (2) includes at least one locking element (32),
that the locking element (32) is movably held between a release position and a
locking position, that in the release position, the preparation module (3) can be
disposed in at least two orientations in the receiving region (4), and that in the
locking position a locking of the preparation module (3) to the kitchen appliance
base (2) is effected, in particular that in the locking position of the locking
element (32) at least the power contacts (7a) are located in the contact
position, and in the release position of the locking element (32) in the rest
position, preferably that the locking element (32) is movable by the drive lever
(21).
12. Kitchen appliance (1) according to claim 11,
characterized in that
in the preparation module (3) disposed in the receiving region (4), the locking
element (32) interacts in a positive-locking manner with at least one locking
counter-element (33) of the preparation module (3), so that a movement, in
particular a rotational movement of the locking element (32) effects a
movement, in particular a rotation of the locking counter-element (33), that the
locking counter-element (33) is movable by the locking element (32) between a
release position and a locking position, and that in the locking position the
locking counter-element (33) interacts with locking contours (34) on the kitchen
appliance base (2) in a positive-locking manner, whereby a locking of the
preparation module (3) to the kitchen appliance base (2) is affected.
13. Kitchen appliance (1) according to one of claims 6 to 12,
characterized in that
the drive lever (21), in particular also the locking element (32), is movably, in
particular rotatably, driven at least indirectly by a drive unit (17), and that the
drive unit (17) is disposed outside a center of rotation of the locking element
(32).
14. Kitchen appliance base (2) for a kitchen appliance (1), in particular according to
one of claims 1 to 13, including at least one electrical interface (7) and at least
one receiving region (4), wherein the electrical interface (7) includes at least
two power contacts (7a) and at least one auxiliary contact (7b), wherein at least
one of the power contacts (7a) and/or at least the auxiliary contact (7b) of the
electrical interface (7), in particular during and/or after the disposing of a
preparation module (3) in the receiving region (4), is movable on the kitchen
appliance base (2) from a rest position at least toward a contact position.
15. Preparation module (3) for a kitchen appliance (1), in particular according to
one of claims 1 to 13, including at least one electrical counter-interface (8) for
electrical contacting with the electrical interface (7) of a kitchen appliance base
(2), wherein the electrical counter-interface (8) includes at least two power
counter-contacts (8a) and at least one auxiliary counter-contact (8b), wherein at
least one of the power counter-contacts (8a) and/or at least the auxiliary
counter-contact (8b) of the electrical counter-interface (8), in particular during
and/or after the disposing of the preparation module (3) in the receiving region
(4), is movable on the preparation module (3) from a rest position at least
toward a contact position.