Modular electromagnetic device with reversible generator-motor operation
First Claim
1. An electromagnetic device (10) with reversible generator-motor operation, the device (10) comprising:
- a rotor (12;
12′
) rotating about an axis and bearing a plurality of magnets (14;
14′
, 14′
a, 14′
b;
140) distributed at regular intervals and with alternate orientations in a substantially ring-shaped pattern;
a stator (16, 20a, 20b, 18, 22a, 22b;
16′
, 18′
, 20′
, 22′
) comprising at least one magnetic yoke (16, 18;
16′
, 18;
6) having a pair of projecting arms (17a, 17b, 19a, 19b;
7) that extend towards the magnets (14;
14′
, 14′
a, 14′
b;
140) and bear a respective coil (20a, 20b, 22a, 22b;
20′
, 22′
;
21) for electrical connection to a utilising device or a power driver, the at least one magnetic yoke (16, 18;
16′
, 18′
;
6) being part, together with a pair of magnets (14;
14′
, 14′
a, 14′
b;
140) confronting the yoke arms (17a, 17b, 19a, 19b;
7) at a given instant and an air gap separating the yoke from the magnets, of a same closed magnetic circuit;
characterised in that the at least one magnetic yoke (16, 18;
16′
, 18′
;
6) is independently mounted on an own support (54) equipped with adjusting units (56, 82, 84, 92) arranged to adjust the yoke position relative to the confronting magnets (14;
14′
, 14′
a, 14′
b;
140), and forms, together with its coils (20a, 20b, 22a, 22b;
20′
, 22′
;
21), its support (54) and its adjusting units (52, 56), an elementary stator cell that can be replicated to form a reversible electromagnetic device (10) including single-phase or multiphase modules.
2 Assignments
0 Petitions
Accused Products
Abstract
A modular electromagnetic device has a stator and a rotor rotating between facing surfaces of the stator and bearing a plurality of magnets distributed with alternate orientations in a substantially ring-shaped pattern, and the stator comprises at least one pair of magnetic yokes symmetrically located at both sides of the rotor. Each yoke has a pair of projecting arms extending towards the magnets and bearing a respective coil for collection of electric power from or supply of electric power to the device. Each yoke is individually mounted on an own support equipped with adjusting units arranged to adjust the yoke position relative to the confronting magnets, and forms, together with its coils, its support, the adjusting units thereof, and sensing and control means controlling the yoke adjustment, an elementary stator cell that can be replicated to form single-phase or multiphase modules.
72 Citations
37 Claims
-
1. An electromagnetic device (10) with reversible generator-motor operation, the device (10) comprising:
-
a rotor (12;
12′
) rotating about an axis and bearing a plurality of magnets (14;
14′
, 14′
a, 14′
b;
140) distributed at regular intervals and with alternate orientations in a substantially ring-shaped pattern;a stator (16, 20a, 20b, 18, 22a, 22b;
16′
, 18′
, 20′
, 22′
) comprising at least one magnetic yoke (16, 18;
16′
, 18;
6) having a pair of projecting arms (17a, 17b, 19a, 19b;
7) that extend towards the magnets (14;
14′
, 14′
a, 14′
b;
140) and bear a respective coil (20a, 20b, 22a, 22b;
20′
, 22′
;
21) for electrical connection to a utilising device or a power driver, the at least one magnetic yoke (16, 18;
16′
, 18′
;
6) being part, together with a pair of magnets (14;
14′
, 14′
a, 14′
b;
140) confronting the yoke arms (17a, 17b, 19a, 19b;
7) at a given instant and an air gap separating the yoke from the magnets, of a same closed magnetic circuit;characterised in that the at least one magnetic yoke (16, 18;
16′
, 18′
;
6) is independently mounted on an own support (54) equipped with adjusting units (56, 82, 84, 92) arranged to adjust the yoke position relative to the confronting magnets (14;
14′
, 14′
a, 14′
b;
140), and forms, together with its coils (20a, 20b, 22a, 22b;
20′
, 22′
;
21), its support (54) and its adjusting units (52, 56), an elementary stator cell that can be replicated to form a reversible electromagnetic device (10) including single-phase or multiphase modules. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
-
Specification