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US 12,691,459 B2Granted
Hand-held paint sprayer
AssigneeJ. Wagner GmbH
InventorTino Ritter
Life of this patent
Estimating the term…
Abstract
A hand-held paint sprayer includes a housing having a handle, a spray head, and a fan motor. The hand-held paint sprayer includes a receptacle space for the fan motor. The receptacle space includes an air inlet and an air outlet. The receptacle space is configured in such a manner that a first plane, in which lies a cross-sectional area of the air inlet, and a second plane, in which lies a cross-sectional area of the air outlet, intersect approximately orthogonally, and in that the air outlet opens toward the spray head.
Claims17
A hand-held paint sprayer comprising:
- a housing having an interior space formed therein;
- a power accumulator;
- a handle coupled to the housing, wherein the handle comprises a coupling for mechanically and electrically coupling the power accumulator, and wherein the handle has a first end and a second end, the first end being connected to the housing and the second end being connected to the coupling;
- a spray head coupled to the housing;
- a pressurized chamber positioned in the interior space of the housing, the pressurized chamber having a receptacle space formed therein;
- and
- a fan motor positioned at least partially within the receptacle space of the pressurized chamber, wherein the fan motor comprises an electric drive and a fan driven by the electric drive, wherein the fan comprises a fan housing having an intake duct and an exhaust duct, wherein the fan comprises a fan wheel which is received in the fan housing, and wherein the fan housing has an annular cross section;
- wherein the receptacle space comprises an air inlet and an air outlet;
- wherein the receptacle space comprises a first plane that forms a cross-sectional area of the air inlet, and a second plane that forms a cross-sectional area of the air outlet;
- wherein the first plane and the second plane intersect approximately orthogonally;
- wherein a rotation axis of the fan motor is aligned eccentrically to a central axis of a motor receptacle region of the receptacle space of the pressurized chamber;
- wherein the air outlet opens toward the spray head;
- and
- wherein:
- a flow of induction air passes through the intake duct in a direction of a rotation axis of the electric drive, and
- a flow of exhaust air passes through the exhaust duct in the direction of the rotation axis of the electric drive.
13 more elements
A hand-held paint sprayer comprising:
- a housing having a receptacle space formed therein;
- a fan motor having a motor housing, an electric drive, and a fan, wherein the fan motor is received by the receptacle space of the housing;
- a spray head coupled to the housing;
- a handle coupled to the housing;
- a power accumulator;
- and
- a coupling component that mechanically and electrically couples the power accumulator to the handle;
- wherein the handle has a first end and a second end, the first end being connected to the housing and the second end being connected to the coupling component;
- wherein the electric drive is a brushless direct current (BLDC) electric drive and comprises a control circuit board connected to the motor housing of the fan motor;
- wherein the control circuit board is disposed between the fan and the first end of the handle;
- wherein the receptacle space comprises an air inlet and an air outlet;
- wherein the receptacle space comprises a first plane that forms a cross-sectional area of the air inlet and a second plane that forms a cross-sectional area of the air outlet;
- wherein the first plane and the second plane intersect approximately orthogonally;
- and
- wherein the air outlet opens toward the spray head.
12 more elements
A hand-held paint sprayer comprising:
- a housing having a receptacle space formed therein;
- a fan motor having an electric drive and a fan, wherein the fan motor is received by the receptacle space of the housing;
- a spray head coupled to the housing;
- a handle coupled to the housing;
- a power accumulator;
- and
- a coupling component that mechanically and electrically couples the power accumulator to the handle;
- wherein the handle has a first end and a second end, the first end being connected to the housing and the second end being connected to the coupling component;
- wherein the receptacle space comprises an air inlet and an air outlet;
- wherein the receptacle space comprises a first plane that forms a cross-sectional area of the air inlet and a second plane that forms a cross-sectional area of the air outlet;
- wherein the first plane and the second plane intersect approximately orthogonally;
- wherein the air outlet opens toward the spray head;
- wherein the fan comprises a fan housing having an intake duct and an exhaust duct;
- wherein a flow of induction air passes through the intake duct in a direction of a rotation axis of the electric drive of the motor fan;
- and
- wherein a flow of exhaust air passes through the exhaust duct in the direction of the rotation axis of the electric drive of the motor.
13 more elements
Dependencies are inferred from the claim text.