Abstract: The invention relates to a housing (2) for an electrical machine (1), said housing comprising a housing wall (3) having an inner surface (4). At least two cooling channels (15) extend inside the housing wall. A connecting deviation channel (16) is provided between two of the cooling channels (15). The inventive housing is also provided with an inner sealing ring (18) applied to the inner surface (4). The housing wall (3) comprises at least one housing recess (17) on the inner surface (4) thereof, in the region of the inner sealing ring (18), such that, together with the inner sealing ring (18), it forms the deviation channel (16).

Abstract: The invention relates to a housing (2) for an electrical machine (1), said housing comprising a housing wall (3) having an inner surface (4). At least two cooling channels (15) extend inside the housing wall. A connecting deviation channel (16) is provided between two of the cooling channels (15). The inventive housing is also provided with an inner sealing ring (18) applied to the inner surface (4). The housing wall (3) comprises at least one housing recess (17) on the inner surface (4) thereof, in the region of the inner sealing ring (18), such that, together with the inner sealing ring (18), it forms the deviation channel (16).

Abstract: The aim of the invention is to improve the production, design, and effectiveness of rollers or roller motors. Said aim is achieved by using a plastic support unit for the individual magnets in order to produce a multipole motor that has a small diameter and can be integrated into a roller. Said plastic support unit can be unscrewed after being incorporated into a return tube. Additionally, a roller comprising an integrated roller motor (24) is cooled by means of an external or internal cooling device (25, 26) so as to increase constant torque. Furthermore, in order to reduce the design of rollers which have to be braked as well, a braking device is provided which can be integrated into the roller. And finally, in order to simplify contacting of the stator during the production thereof, a divisible arbor is provided which comprises corresponding contact supports on both parts of the arbor.

Abstract: A household appliance, particularly a vacuum cleaner, has a housing of rigid material and formed with at least two interconnected housing parts and a handle that is also made of a rigid material. The household appliance is rendered especially rigid and the risk of losing grip of the handle of the appliance is reduced by integrating the handle into a stiffening element that is disposed at the intersection of the housing parts and by providing the handle with a cover that is made of a softer material.

Abstract: A vacuum cleaner includes a dust collection compartment inside of which a dust bag with a reinforcing plate, which has a clip connected to the underside thereof, can be placed. The clip tapers toward the bottom in the shape of a funnel or trapezoid and is suited for insertion into a correspondingly configured fixture. The fixture has lateral guide elements that guide the reinforcing plate when pushed in. The configuration enables the dust bag to be easily inserted into the dust collection compartment without the involving the difficult placement inside a guide profile.

Abstract: A household appliance, particularly a vacuum cleaner, has a housing of rigid material and formed with at least two interconnected housing parts and a handle that is also made of a rigid material. The household appliance is rendered especially rigid and the risk of losing grip of the handle of the appliance is reduced by integrating the handle into a stiffening element that is disposed at the intersection of the housing parts and by providing the handle with a cover that is made of a softer material.

Abstract: A vacuum cleaner includes a dust collection compartment inside of which a dust bag with a reinforcing plate, which has a clip connected to the underside thereof, can be placed. The clip tapers toward the bottom in the shape of a funnel or trapezoid and is suited for insertion into a correspondingly configured fixture. The fixture has lateral guide elements that guide the reinforcing plate when pushed in. The configuration enables the dust bag to be easily inserted into the dust collection compartment without the involving the difficult placement inside a guide profile.