Power supply arrangement for a suction device and suction device
First Claim
1. A power supply arrangement for a suction device which is selectively operable using direct current or alternating current, in particular mains current, including:
- a first connection to which a direct current source is connectible or connected;
a second connection to which an alternating current source is connectible or connected;
at least one third connection to which one or more consuming units of the suction device are connectible or connected;
an electrically isolated converter which is connected on the input side in electrically active manner to the first connection; and
a switchover device which is connected in electrically active manner to an output of the converter, is connected to the second connection and is connected to the at least one consuming unit;
wherein by means of the switchover device it is selectable whether the at least one consuming unit is actively connected to the converter or the second connection for power supply; and
wherein the switchover device has one or more components each with an electrical safety clearance, and the safety clearance of such a component is at least 4 mm in respect of the creepage distance and the total of the creepage distances of the components is at least 8 mm.
1 Assignment
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Accused Products
Abstract
A power supply arrangement for a suction device is provided, which is optionally operable using direct current or alternating current, including a first connection connectible to a direct current source, a second connection connectible to an alternating current source, a third connection connectible to a consuming unit of the suction device, an electrically isolated converter connected on the input side to the first connection, and a switchover device connected to an output of the converter, the second connection and to the consuming unit, wherein the switchover device allows selection of whether the consuming unit is actively connected to the converter or the second connection for power supply, and wherein the switchover device has one or more components each with an electrical safety clearance that is at least 4 mm in respect of the creepage distance and the total of the creepage distances of the components is at least 8 mm.
9 Citations
17 Claims
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1. A power supply arrangement for a suction device which is selectively operable using direct current or alternating current, in particular mains current, including:
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a first connection to which a direct current source is connectible or connected; a second connection to which an alternating current source is connectible or connected; at least one third connection to which one or more consuming units of the suction device are connectible or connected; an electrically isolated converter which is connected on the input side in electrically active manner to the first connection; and a switchover device which is connected in electrically active manner to an output of the converter, is connected to the second connection and is connected to the at least one consuming unit; wherein by means of the switchover device it is selectable whether the at least one consuming unit is actively connected to the converter or the second connection for power supply; and wherein the switchover device has one or more components each with an electrical safety clearance, and the safety clearance of such a component is at least 4 mm in respect of the creepage distance and the total of the creepage distances of the components is at least 8 mm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A suction device, in particular a vacuum cleaner, including:
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a suction inlet; a dirt collection container; a filter device; a suction removal line; and a suction assembly; wherein the dirt collection device is in flow connection with the suction assembly by way of the filter device and the suction removal line, and negative pressure from the suction assembly acts on the filter device; and a power supply arrangement;
said power supply arrangement including;a first connection to which a direct current source is connectible or connected; a second connection to which an alternating current source is connectible or connected; at least one third connection to which one or more consuming units of the suction device are connectible or connected; an electrically isolated converter which is connected on the input side in electrically active manner to the first connection; and a switchover device which is connected in electrically active manner to an output of the converter, is connected to the second connection and is connected to the at least one consuming unit; wherein by means of the switchover device it is selectable whether the at least one consuming unit is actively connected to the converter or the second connection for power supply; and wherein the switchover device has one or more components each with an electrical safety clearance, and the safety clearance of such a component is at least 4 mm in respect of the creepage distance and the total of the creepage distances of the components is at least 8 mm. - View Dependent Claims (15, 16, 17)
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Specification