Energy recuperator with wide range of operating speed

Patent metadata

Field	Value
Publication number	US-2023216390-A1
Application number	US-202218148048-A
Country	US
Kind code	A1
Filing date	Dec 29, 2022
Priority date	Dec 30, 2021
Publication date	Jul 6, 2023
Grant date	—

Abstract

The invention relates to an energy recovery device including:a)—at least one first magnet, able to be set in movement according to a rotational or translational movement;b)—a main magnet, able to be set in rotation about an axis (ZZ′) by said at least first magnet;c)—at least one second magnet, fixedly disposed with respect to the main magnet, for determining one or more position(s) of equilibrium of the latter;d)—at least one conductive coil for transforming a variation of orientation of the main magnet into electrical energy, wherein:in a 1st speed or frequency range, called low range, a coupling of said at least one first magnet and of said main magnet causes the rotation of the latter from at least one position of equilibrium, the oscillations of said main magnet around said at least one position of equilibrium resulting in the creation of an electrical energy in said at least one conductive coil;for a 2nd speed or frequency range, called mid-range, a coupling of said at least one first magnet and of said main magnet causes the rotation of the latter, without oscillations, and this rotation results in the creation of an electrical energy in the coil.

First claim

1 . An energy recovery device including:
a)—at least one first magnet, able to be set in movement according to a rotational or translational movement; b)—a main magnet, able to be set in rotation about an axis (ZZ′) by said at least first magnet; c)—at least one second magnet, fixedly disposed with respect to the main magnet, for determining one or more position(s) of equilibrium of the latter; d)—at least one conductive coil for transforming a variation of orientation of the main magnet into electrical energy, wherein:
in a 1st speed or frequency range, called low range, a coupling of said at least one first magnet and of said main magnet causes the rotation of the latter from at least one position of equilibrium, the oscillations of said main magnet around said at least one position of equilibrium resulting in the creation of an electrical energy in said at least one conductive coil;
for a 2nd speed or frequency range, called mid-range, a coupling of said at least one first magnet and of said main magnet causes the rotation of the latter, without oscillations, and this rotation results in the creation of an electrical energy in the coil.

2 . The device according to claim 1 , wherein the at least one first magnet is movable in rotation about the axis (ZZ′) of rotation of the main magnet.

3 . The device according to claim 1 , wherein the at least one first magnet is movable in translation at least in part in a plane perpendicular to the axis (ZZ′) of rotation of the main magnet.

4 . The device according to claim 1 , wherein the at least one first magnet is polarised according to said axis (ZZ′) and is movable in translation along said axis.

5 . The device according to claim 3 , wherein the at least one first magnet includes a plurality of magnets disposed in line with successively opposite polarities.

6 . The device according to claim 1 , wherein the at least one first magnet is movable in rotation or in translation at least in part in a plane containing the main magnet.

7 . The device according to claim 1 , wherein the at least one second magnet is fixedly disposed with respect to the main magnet, including at least one ferromagnetic circuit, said position(s) of equilibrium being defined when the main magnet closes this ferromagnetic circuit.

8 . The device according to claim 7 , including at least 2 ferromagnetic circuits, a position of equilibrium being defined when the main magnet closes one of said ferromagnetic circuits.

9 . The device according to claim 1 , at least one conductive coil being wound around the main magnet and/or at least one conductive coil ( 40 ) being wound around at least one portion of the magnetic circuit.

10 . The device according to claim 7 , at least one conductive coil being wound around at least one portion of said ferromagnetic circuit.

11 . The device according to claim 1 , the at least one second magnet for fixing one or more position(s) of equilibrium of the main magnet further including at least one fixed magnet interacting with the main magnet.

12 . The device according to claim 1 , at least one of the first magnet and the main magnet being bipolar or n-polar (n>2).

13 . The device according to claim 1 , including several conductive coils for transforming a variation of orientation of the main magnet into electrical energy.

14 . The device according to claim 1 , wherein, in a 3rd speed or frequency range, called high range, the main magnet no longer rotates, said at least one first magnet interacting directly with the at least one conductive coil, the variations of magnetic field induced in the latter being converted into electric power by the at least one conductive coil.

15 . An energy recovery method including:
a)—setting at least one first magnet in movement according to a rotational or translational movement, at a first speed or frequency; b)—setting a main magnet in rotation about an axis by said at least one first magnet, starting from at least one position(s) of equilibrium of the main magnet, defined by at least one second magnet, fixedly disposed with respect to the latter; c)—the transformation of a variation of orientation of the main magnet into electrical energy by at least one conductive coil, wherein:
in a 1st speed or frequency range, called low range, a coupling of said at least one first magnet and of said main magnet causes the rotation of the latter from at least one position of equilibrium, the oscillations of said main magnet around said at least one position of equilibrium resulting in the creation of an electrical energy in said at least one conductive coil;
for a 2nd speed or frequency range, called mid-range, a coupling of said at least one first magnet and of said main magnet causes the rotation of the latter, without oscillations, and this rotation results in the creation of an electrical energy in the coil.

16 . The energy recovery method according to claim 15 , the at least one first magnet being driven in rotation at a speed lower than 120 rpm.

17 . The energy recovery method according to claim 15 , the at least one first magnet being driven in rotation at a speed comprised between 120 rpm and 10,000 rpm.

18 . The energy recovery method according to claim 15 , further including:
a step of setting said at least one first magnet, in movement at a third speed or frequency for which the main magnet is not set in rotation; transformation of this movement of said at least one first magnet into electrical energy by said at least one conductive coil.

19 . The energy recovery method according to claim 18 , the at least one first magnet being driven in rotation at a speed higher than 10,000 rpm.

20 . An energy recovery device including:
a)—first magnetic means, able to be set in movement according to a rotational or translational movement; b)—a main magnet, able to be set in rotation about an axis (ZZ′) by said first magnetic means; c)—second magnetic means, fixedly disposed with respect to the first magnetic means, for determining one or more position(s) of equilibrium of the latter; d)—at least one conductive coil for transforming a variation of orientation of the main magnet into electrical energy, wherein:
in a 1st speed or frequency range, called low range, a coupling of said first magnetic means and of said second magnetic means causes the rotation of the latter from at least one position of equilibrium, the oscillations of said main magnet around said at least one position of equilibrium resulting in the creation of an electrical energy in said at least one conductive coil;
for a 2nd speed or frequency range, called mid-range, a coupling of said first magnetic means and of said main magnet causes the rotation of the latter, without oscillations, and this rotation results in the creation of an electrical energy in the coil.

Assignees

• Commissariat A L Energie Atomique Et Aux Energies Al Ternatives
• Commissariat Energie Atomique

Inventors

• Garraud Nicolas
• Boisseau Sebastien
• Despesse Ghislain
• Alessandri Baptiste

Classifications

• H02K35/02 Primary

  with moving magnets and stationary coil systems · CPC title

• H02K21/14

  with magnets rotating within the armatures · CPC title

• H02K21/24

  with magnets axially facing the armatures, e.g. hub-type cycle dynamos · CPC title

• H02K21/12

  with stationary armatures and rotating magnets · CPC title

• H02K7/1853

  driven by intermittent forces · CPC title