US 12,341,401 B2
Brushless direct current blower motor with novel stator block
Jin Gun Jung, Busan (KR); Chi Won Moon, Busan (KR); and Seokmin Kim, Busar (KR)
Assigned to Hyoseong Electric, Co., Ltd., Busan (KR)
Filed by Hyoseong Electric, Co., Ltd., Busan (KR)
Filed on Mar. 27, 2024, as Appl. No. 18/617,903.
Claims priority of application No. 10-2023-0041322 (KR), filed on Mar. 29, 2023.
Prior Publication US 2024/0333084 A1, Oct. 3, 2024
Int. Cl. H02K 5/22 (2006.01); H02K 5/24 (2006.01)
CPC H02K 5/225 (2013.01) [H02K 5/24 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A blower motor, comprising:
a motor assembly (100) comprising a stator assembly (1) comprising a stator core (10), an upper insulator (11) coupled to an upper portion of the stator core (10) and a lower insulator (12) coupled to a lower portion of the stator core (10), a rotor assembly (2) rotating around the stator assembly (1), a stator block (3) to which the stator assembly (1) is coupled, a printed circuit board (4) located at a lower portion of the stator block (3), and a motor cover (5) coupled to the stator block (3);
a flange (200) comprising a flange body (201) having a hole in the center into which the motor assembly (100) is inserted, an upper protrusion (202) having an annular shape protruding upwardly along a periphery of the hole into which the motor assembly (100) is inserted, a damper seating part (203) formed in the shape of a groove on an inner side of the hole of the motor assembly (100), and a plurality of coupling protrusions (204) formed in the shape of protrusions on a lower portion of the flange body (201); and
a damper plate (300) comprising an annular body (301) having a ring shape, a plurality of locking parts (302) protruding upwardly from a periphery of the annular body (301) at regular intervals, and a plurality of protrusion guides (303) protruding toward the shaft (21) from a periphery of the annular body (301) at regular intervals,
wherein the stator block (3) has a plate (30) having a circular shape and a hollow protrusion (31) protruding upwardly from a central portion of the plate (30), and
the stator assembly (1) is coupled to the hollow protrusion (31),
wherein a plurality of protruding couplers (32) protrude radially from a periphery of the plate (30) at regular intervals, and the protruding coupler (32) is inserted and fixed to a lower portion of a decoupling part (511) in the motor cover (5), and
wherein the locking parts (302) are coupled to the coupling protrusions (204) and the protrusion guide (303) of the damper plate (300) supports the motor cover (5) to prevent the motor assembly (100) from dislodging downwardly.