Brushless direct current blower motor with novel motor cover

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 flange body (201), 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) to seat the motor assembly (100) to the flange (200) 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 coupled to the coupling protrusions (204), 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 motor cover (5) comprises a cover part (50) and a packing part (51) enclosing a periphery of the cover part (50),
• wherein the cover part (50) having a cup shape in which an upper portion is open comprises a cover body (500);
• a connector coupling part (501) having a shape in which a portion of one side of the cover body (500) is open, to which a connector (41) is coupled;
• a rim part (502) having a shape extending outwardly along an upper edge of the cover body (500);
• a plurality of pairs of decoupling parts (503) protruding upwardly from a periphery of the rim part (502) at regular intervals;
• and a plurality of PCB coupling parts (504) formed in the shape of a groove on an inner side of an upper surface (502A) of the rim part (502) at regular intervals;
• and
• wherein the packing part (51) comprises a connector sealing part (511) formed around the connector coupling part (501);
• a water sealing part (512) formed on an upper surface (502A) of the rim part (502);
• a decoupling damper part (513) formed to enclose the pair of decoupling parts (503) protruding upwardly from an outer side of the rim part (502);
• a PCB support part (514) covering the PCB coupling part (54);
• and an air sealing part (515) formed to cover a side surface (502B) and a lower surface (502C) of the rim part (502) of the cover body (500).