Induction generator and method for producing an induction generator

Patent metadata

Field	Value
Publication number	US-9484796-B2
Application number	US-201514818671-A
Country	US
Kind code	B2
Filing date	Aug 5, 2015
Priority date	Jan 17, 2011
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

An induction generator ( 100 ) for a remote switch which comprises a U-shaped magnetic diverter ( 102 ) with first and second limbs as well as a coil core ( 104 ) with an induction coil ( 106 ) arranged between the limbs. A movable magnetic element ( 110 ) is provided for switching the induction generator ( 100 ). When the magnetic element ( 110 ) is in its first position, the magnetic element ( 110 ) is connected with the first limb and the coil core ( 104 ) and, when the magnetic element ( 110 ) is in its second position, the magnetic element ( 110 ) is connected with the coil core ( 104 ) and the second limb.

First claim

The invention claimed is:

1. An induction generator ( 100 ) for a remote switch, the induction generator comprising:
a U-shaped magnetic diverter ( 102 ) comprising a first limb, a second limb, positioned adjacent the first limb, and a connecting section joining the first limb with the second limb;
a coil core ( 104 ) being connected to the connecting section of the magnetic diverter and arranged between the first limb and the second limb;
an induction coil ( 106 ) being arranged on the coil core between the first limb and the second limb; and
a movable magnetic element ( 110 ), comprising a first contact area ( 112 ) and a second contact area ( 112 ), having first and second positions such that;
in the first position of the magnetic element, the first contact area adjoins the first limb and the second contact area adjoins the coil core, and
in the second position of the magnetic element, the first contact area adjoins the coil core and the second contact area adjoins the second limb,

wherein the first and the second limbs each have an over-spanning section which spans over the induction coil ( 106 );
the first and second limbs each have a contact section for contacting one of the first and the second contact areas; and
a cross-section through the over-spanning section of each of the first and the second limbs is, in each case, greater than a cross-section through the contact section of each of the first and the second limbs.

2. The induction generator ( 100 ) according to claim 1 , wherein the magnetic element has a first pole-piece ( 112 ) which forms the first contact area and a second pole-piece ( 112 ) which forms the second contact area, and free ends of the first and the second pole-pieces overlap with free ends of the coil core ( 104 ) and of the first and the second limbs.

3. The induction generator ( 100 ) according to claim 1 , wherein a line that joins a south pole and a north pole, of the magnetic element ( 110 ), extends transversely to a longitudinal extension direction of the coil core ( 104 ).

4. The induction generator ( 100 ) according to claim 1 , wherein the coil core ( 104 ) comprises a supporting section for supporting the induction coil ( 106 ) and a contact section for contacting the first and the second contact areas, and a cross-section through the contact section of the coil core ( 104 ) is greater than a cross-section through the supporting section of the coil core ( 104 ).

5. The induction generator ( 100 ) according to claim 1 , wherein the connecting section of the magnetic diverter has an opening for receiving an end section of the coil core ( 104 ).

6. The induction generator ( 100 ) according to claim 1 , wherein the induction generator has an actuator ( 532 ) which moves the magnetic element ( 110 ) between the first position and the second position.

7. A method of generating an electrical voltage by an induction generator ( 100 ), the induction generator comprises:
a U-shaped magnetic diverter ( 102 ) comprising a first limb, a second limb, arranged adjacent the first limb, and a connecting section joining the first and the second limbs with one another;
a coil core ( 104 ) being connected to the connecting section of the U-shaped magnetic diverter and arranged between the first and the second limbs of the magnetic diverter, and the coil core ( 104 ) supporting an induction coil ( 106 );
a movable magnetic element ( 110 ) comprising a first contact area ( 112 ) and a second contact area ( 112 ); and the movable magnetic element ( 110 ) having first and second positions;
the method comprising:
directly contacting the first contact area to the first limb and positioning the second contact area so as to adjoin the coil core when the movable magnetic element ( 110 ) is in the first position;
positioning the first contact area so as to adjoin the coil core and directly contacting the second contact area to the second limb, when the movable magnetic element ( 110 ) is in the second position; and
moving the magnetic element from the first position to the second position.

8. A method of producing an induction generator ( 100 ) for a remote switch, the method comprises the following steps:
arranging an induction coil on a coil core;
preparing a U-shaped magnetic diverter with a first limb, a second limb arranged adjacent to the first limb and a connecting section joining the first and the second limbs with one another;
connecting the coil core to the connecting section of the magnetic diverter so that the induction coil is positioned between the first and the second limbs of the magnetic diverter;
providing a magnetic element with a first contact area and a second contact area; and
arranging the magnetic element close to the coil core and the first and the second limbs of the magnetic diverter such that the magnetic element is movable between first and second positions so that, in the first position of the magnetic element, the first contact area directly contacts the first limb and the second contact area adjoins the coil core, and, in the second position of the magnetic element, the first contact area adjoins the coil core and the second contact area directly contacts the second limb.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Ruff Eduard

Classifications

• Y10T29/49009

  Dynamoelectric machine · CPC title

• H02K99/10

  Generators · CPC title

• H02K15/00 Primary

  Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines · CPC title

• H02K35/02

  with moving magnets and stationary coil systems · CPC title

• H02K7/1876 Primary

  with reciprocating, linearly oscillating or vibrating parts · CPC title