Abstract: A multiple-pump device for a vehicle may include a housing. The housing may include at least a first drive device for driving a first drive shaft with a first impeller, and a second drive device for driving a second drive shaft with a second impeller. The multiple-pump device may include a bearing shield penetrated by the first drive shaft and the second drive shaft. The beating shield may separate a wet region with the first impeller and the second impeller from a dry region with the first drive device and the second drive device. The multiple-pump device may include power electronics arranged in the dry region and connected with the bearing shield to transfer heat.

Abstract: A control device for controlling an electric motor of an electrical device may include a flat plate and a power electronics. The plate may extend in a plate plane. The power electronics may include a plurality of electronic components arranged and interconnected on the plate. The power electronics may have at least one electronic power component that produces waste heat during operation. The at least one electronic power component may be arranged such that a body of the at least one electronic power component penetrates the plate plane. A plurality of power connections, via which the at least one electronic power component may be interconnected to the plurality of electronic components, may be arranged at an edge of the plate.

Abstract: A multiple-pump device for a vehicle may include a housing. The housing may include at least a first drive device for driving a first drive shaft with a first impeller, and a second drive device for driving a second drive shaft with a second impeller. The multiple-pump device may include a bearing shield penetrated by the first drive shaft and the second drive shaft. The beating shield may separate a wet region with the first impeller and the second impeller from a dry region with the first drive device and the second drive device. The multiple-pump device may include power electronics arranged in the dry region and connected with the bearing shield to transfer heat.

Abstract: An electric fluid pump may include a pump housing and an electric motor. A rotor may have a rotor shaft and may be mounted in a rotatable manner in a stator body, which may have a stator embedded at least regionally therein. The pump housing may be subdivided into a dry and a wet region containing the rotor. The rotor shaft may be mounted on a bottom side and may be connected to a pump impeller on a pump-impeller side, facing away from the bottom side. The pump housing may have, on the pump-impeller side, an aperture out of which the rotor shaft may project. The pump housing may have an internal first bearing collar arranged around the aperture, the dry region located radially around the first bearing collar, and an outside diameter of the first bearing collar being less than a maximum diameter of the rotor.

Abstract: A housing for accommodating electrical components, in particular in a liquid pump, includes a housing pot including a bottom and a surrounding wall protruding from the bottom, as well as a housing cover closing the housing pot, including a shoulder protruding in the direction of the bottom. A simplified and cost-efficient production of the housing as well as an increased operational safety of the liquid pump are attained in that the housing cover forms a caulking connection with the surrounding wall of the housing pot with the help of at least one recess formed in the shoulder. The disclosure furthermore relates to a liquid pump including a housing of this type as well as a method for producing a liquid pump of this type.

Abstract: An electric fluid pump may include a pump housing and an electric motor arranged in the pump housing. A rotor of the electric motor may have a rotor shaft and may be mounted in a stator of the electric motor so as to be rotatable about an axis of rotation. The pump housing may be divided into a dry region and a wet region in which the rotor may be disposed. The dry region and the wet region may be separated by a stator support piece which may at least regionally enclose the stator.

Abstract: A control device for controlling an electric motor of an electrical device may include a flat plate and a power electronics. The plate may extend in a plate plane. The power electronics may include a plurality of electronic components arranged and interconnected on the plate. The power electronics may have at least one electronic power component that produces waste heat during operation. The at least one electronic power component may be arranged such that a body of the at least one electronic power component penetrates the plate plane. A plurality of power connections, via which the at least one electronic power component may be interconnected to the plurality of electronic components, may be arranged at an edge of the plate.

Abstract: A housing for accommodating electrical components, in particular in a liquid pump, includes a housing pot including a bottom and a surrounding wall protruding from the bottom, as well as a housing cover closing the housing pot, including a shoulder protruding in the direction of the bottom. A simplified and cost-efficient production of the housing as well as an increased operational safety of the liquid pump are attained in that the housing cover forms a caulking connection with the surrounding wall of the housing pot with the help of at least one recess formed in the shoulder. The disclosure furthermore relates to a liquid pump including a housing of this type as well as a method for producing a liquid pump of this type.

Abstract: A fluid pump includes an internal rotor rotatable about an axis of rotation and having a non-rotatable external stator and an impeller having multiple blades axially arranged between a support disc and a cover disc. The rotor has a rotor housing having a base, a mounting sleeve and a cover, in which an armature unit of the rotor is received so as to be fluid-tight towards the outside. The support disc of the impeller forms the cover of the rotor housing and axially seals the mounting sleeve. The impeller includes a first part and a second part which are fixed to one another in a material bonded manner. Here, the blades are exclusively formed integrally on the first part or on the second part, axially project from this part on one side and are axially covered by the respective other part.

Abstract: A liquid pump for conveying a liquid may include a housing, in which a pump impeller is arranged for conveying the liquid, and a cover for covering the housing. The cover may include a main connector for supplying a main flow of the liquid to the pump impeller and an auxiliary connector for supplying an auxiliary flow of the liquid to the pump impeller. The housing may have an inlet opening for the liquid and an annular collar protruding from an edge of the inlet opening. The cover may lie axially against the annular collar. The annular collar and the cover may define an annular wall surrounding a flow path of the main flow of the liquid. The annular wall may have at least one radial opening connecting the flow path with an inflow space surrounding the annular wall. The auxiliary connector may be fluidically connected with the inflow space.

Abstract: An electric fluid pump may include a pump housing and an electric motor arranged therein. A rotor of the electric motor may have a rotor shaft and may be mounted in a rotatable manner in a stator body, which may have a stator embedded at least regionally therein. The pump housing may be subdivided into a dry and a wet region containing the rotor. The rotor shaft may be mounted on a bottom side in the pump housing and may be connected in terms of drive to a pump impeller on a pump-impeller side, facing away from the bottom side, of the pump housing. The pump housing may have, on the pump-impeller side, an aperture out of which the rotor shaft may project. The pump housing may have an internal first bearing collar arranged around the aperture, wherein the dry region may be located radially around the first bearing collar, and wherein an outside diameter of the first bearing collar may be less than a maximum diameter of the rotor.

Abstract: A liquid pump for conveying a liquid may include a housing, in which a pump impeller is arranged for conveying the liquid, and a cover for covering the housing. The cover may include a main connector for supplying a main flow of the liquid to the pump impeller and an auxiliary connector for supplying an auxiliary flow of the liquid to the pump impeller. The housing may have an inlet opening for the liquid and an annular collar protruding from an edge of the inlet opening. The cover may lie axially against the annular collar. The annular collar and the cover may define an annular wall surrounding a flow path of the main flow of the liquid. The annular wall may have at least one radial opening connecting the flow path with an inflow space surrounding the annular wall. The auxiliary connector may be fluidically connected with the inflow space.

Abstract: An electric fluid pump may include a pump housing and an electric motor arranged therein. A rotor of the electric motor may have a rotor shaft and may be mounted in a rotatable manner in a stator body, which may have a stator embedded at least regionally therein. The pump housing may be subdivided into a dry and a wet region containing the rotor. The rotor shaft may be mounted on a bottom side in the pump housing and may be connected in terms of drive to a pump impeller on a pump-impeller side, facing away from the bottom side, of the pump housing. The pump housing may have, on the pump-impeller side, an aperture out of which the rotor shaft may project. The pump housing may have an internal first bearing collar arranged around the aperture, wherein the dry region may be located radially around the first bearing collar, and wherein an outside diameter of the first bearing collar may be less than a maximum diameter of the rotor.

Abstract: An electric fluid pump may include a pump housing and an electric motor arranged in the pump housing. A rotor of the electric motor may have a rotor shaft and may be mounted in a stator of the electric motor so as to be rotatable about an axis of rotation. The pump housing may be divided into a dry region and a wet region in which the rotor may be disposed. The dry region and the wet region may be separated by a stator support piece which may at least regionally enclose the stator.