Mechanical device for converting direct current into alternating current

A mechanical device for converting direct current into three-phase alternating current for driving a dynamoelectric rotating machine, said mechanical device comprising:

• a contact unit attachable to a shaft of the dynamoelectric rotating machine, said contact unit embodied as a hollow cylinder and including at least two receiving regions for receiving electrical energy in a form of direct current and at least three output regions for outputting electrical energy in a form of alternating current, with a first one of the at least two receiving regions configured to contact a positive pole of a direct current feed, with a second one of the at least two receiving regions configured to contact a negative pole of the direct current feed, with a first one of the at least three output regions configured to provide a first alternating current, with a second one of the at least three output regions configured to provide a second alternating current, and with a third one of the at least three output regions configured to provide a third alternating current;
• a contacting unit for receiving the direct current and/or for outputting the alternating current;
• an assembly comprising a spring and a contact to provide contact of the at least three output regions with three phases of the dynamoelectric rotating machine;
• and
• an isolator embodied between two of the at least three output regions and the contact to prevent the contact from making contact with the two of the at least three output regions at a same time,
• wherein the first one of the at least two receiving regions is disposed on a first receiving slideway which is arranged on an outer periphery of the contact unit, and said second one of the at least two receiving regions is disposed on a second receiving slideway which is arranged on the outer periphery of the contact unit.

A mechanical device for converting direct current into three-phase alternating current for driving a dynamoelectric rotating machine, said mechanical device comprising:

• a contact unit attachable to a shaft of the dynamoelectric rotating machine, said contact unit embodied as a hollow cylinder and including at least two receiving regions for receiving electrical energy in a form of direct current and at least three output regions for outputting electrical energy in a form of alternating current, with a first one of the at least two receiving regions configured to contact a positive pole of a direct current feed, with a second one of the at least two receiving regions configured to contact a negative pole of the direct current feed, with a first one of the at least three output regions configured to provide a first alternating current. with a second one of the at least three output regions configured to provide a second alternating current and with a third one of the at least three output regions configured to provide a third alternating current;
• a contacting unit for receiving the direct current and/or for outputting the alternating current;
• an assembly comprising a spring and a contact to provide contact of the at least three output regions with three phases of the dynamoelectric rotating machine;
• and
• an isolator embodied between two of the at least three output regions and the contact to prevent the contact from making contact with the two of the at least three output regions at a same time,
• wherein the at least three output regions are disposed on precisely one output slideway which is arranged on an outer periphery of the contact unit, with the first one of the at least three output regions being disposed on a first section of the output slideway, with the second one of the at least three output regions being disposed on a second section of the output slideway, and with the third one of the at least three output regions being disposed on a third section of the output slideway.

A mechanical device for converting direct current into three-phase a alternating current for driving a dynamoelectric rotating machine, said mechanical device comprising:

• a contact unit attachable to a shaft of the dynamoelectric rotating machine, said contact unit embodied as a hollow cylinder and including at least two receiving regions for receiving electrical energy in a form of direct current and at least three output regions for outputting electrical energy in a form of alternating current, with a first one of the at least two receiving regions configured to contact a positive pole of a direct current feed, with a second one of the at least two receiving regions configured to contact a negative pole of the direct current feed, with a first one of the at least three output regions configured to provide a first alternating current, with a second one of the at least three output regions configured to provide a second alternating current, and with a third one of the at least three output regions configured to provide a third alternating current;
• a contacting unit for receiving the direct current and/or for outputting the alternating current;
• an assembly comprising a spring and a contact to provide contact of the at least three output regions with three phases of the dynamoelectric rotating machine;
• and
• an isolator embodied between two of the at least three output regions and the contact to prevent the contact from making contact with the two of the at least three output regions at a same time,
• wherein the first one of the at least three output regions is disposed on a first output slideway, the second one of the at least three output regions is disposed on a second output slideway, and the third one of the at least three output regions is disposed on a third output slideway, the first, second and third output slideways being arranged on an outer periphery of the contact unit.

A dynamoelectric rotating machine, comprising a mechanical device, said mechanical device comprising a contact unit attachable to a shaft of the dynamoelectric rotating machine, said contact unit including at least two receiving regions for receiving electrical energy in a form of direct current and at least three output regions for outputting electrical energy in a form of alternating current, with a first one of the at least two receiving regions configured to contact a positive pole of a direct current feed, with a second one of the at least two receiving regions configured to contact a negative pole of the direct current feed, with a first one of the at least three output regions configured to provide a first alternating current, with a second one of the at least three output regions configured to provide a second alternating current, and with a third one of the at least three output regions configured to provide a third alternating current, a contacting unit for receiving the direct current and/or for outputting the alternating current, an assembly comprising a spring and a contact to provide contact of the at least three output regions with three phases of the dynamoelectric rotating machine, and an isolator embodied between two of the at least three output regions and the contact to prevent the contact from making contact with the two of the at least three output regions at a same time,

• wherein the first one of the at least three output regions is disposed on a first slideway, the second one of the at least three output regions is disposed on a second slideway, and the third one of the at least three output regions is disposed on a third slideway.