Device for generating a thermal flux with magneto-caloric material

A device for generating a thermal flux with magneto-caloric material (1-4), comprising at least one thermal flux generation unit (10, 30) provided with at least two thermal bodies (11, 21, 31, 41a, 41b), each containing at least one magneto-caloric element (12, 22, 32), magnetic means (103, 203, 303, 403) arranged to emit at least one magnetic field, displacement means coupled to the magnetic means (103, 203, 303, 403) to move the magnetic means (103, 203, 303, 403) relative to the magneto-caloric elements (12, 22, 32)so as to subject the magneto-caloric elements (12, 22, 32) to a magnetic field variation to vary a temperature of the magneto-caloric elements (12, 22, 32), and recuperation means for recuperating calories and frigories emitted by the magneto-caloric elements (12, 22, 32), the displacement means move the magnetic means (103, 203, 303, 403) in a reciprocating motion relative to the magneto-caloric elements (12, 22, 32);

• the magnetic means comprises a plurality of magnetic elements (103, 203, 303, 403) that are carried by at least one support (104, 204, 304), which is coupled to the reciprocating displacement means;
• the at least one support is essentially rectilinear and defines at least one bar (304) that moves in reciprocating rectilinear translation, the bar (304) carrying the magnetic means (303), the at least two thermal bodies (31) are carried by at least one frame (306) positioned around the bar (304) and are essentially linearly arranged such that the magnetic means (303) freely straddle the at least two thermal bodies (31);
• and
• the magnetic means (303) are positioned in a staggered arrangement on either side of the bar (304) and form two rows, and the frame (306) comprises two series of thermal bodies (31) each of which corresponds to the magnetic means (303) of one of the two rows.

A device for generating a thermal flux with magneto-caloric material, the device comprising at least one thermal flux generation unit (10, 30) provided with at least two thermal bodies (11, 21, 31, 41a, 41b), each containing at least one magneto-caloric element (12, 22, 32), magnetic mechanism (103, 203, 303, 403) being arranged for emitting at least one magnetic field, displacement mechanism coupled to the magnetic mechanism (103, 203, 303, 403) for moving the magnetic mechanism (103, 203, 303, 403) relative to the magneto-caloric elements (12, 22, 32) to subject the magneto-caloric elements (12, 22, 32) to a magnetic field variation and vary a temperature the magneto-caloric elements (12, 22, 32), and a recuperation mechanism for recuperating at least one of calories and frigories that are emitted by the magneto-caloric elements (12, 22, 32), the displacement mechanism reciprocating and being arranged for moving the magnetic mechanism (103, 203, 303, 403) relative to the magneto-caloric elements (12, 22, 32) in a reciprocating motion;

• the recuperation mechanism comprises at least two heat transfer fluid circuits (410a, 410b), circulating mechanism (411a, 41b) for circulating heat transfer fluid in each fluid circuit (410a, 410b) and extraction mechanism (413a, 413b) for extracting the calories and frigories recovered by the heat transfer fluid, each fluid circuit (410a, 410b) comprises at least two transfer zones (14) each of which being located immediately adjacent to one of the magneto-caloric elements (12, 22, 32) and arranged so that the heat transfer fluid at least partially recovers the calories and frigories emitted by the corresponding magneto-caloric element (12, 22, 32);
• and
• at least one of the at least two circuits (410a, 410b) being a hot circuit (410a) for the calories and at least one of the at least two circuits (410a, 410b) being a cold circuit (410b) for the frigories, and a commutation mechanism (412) for connecting each of the at least two transfer zones (14) in alternation to one or other of the at least two circuits (410a, 410b), and a synchronization mechanism for synchronizing the reciprocating displacement mechanism with the commutation mechanism (412) such that, depending on the magnetic field to which each magneto-caloric element (12, 22, 32) is subjected, the corresponding transfer zone (14) being connected to one or other of the at least two circuits (410a, 410b).