Blower housing pressurization structure

A blower housing pressurization structure, comprising at least:

• a power seat, including at least two opposite side surfaces, in which a through hole is formed between the middle sections of the two side surfaces for accommodating a motor of which the opposite sides respectively extend outward in the direction of the two side surfaces with a rotating shaft for installation of a wind impeller;
• a first joint, being arranged on each side surface;
• two half shells, in which each half shell is provided on the two sides of the power seat and includes at least an outer side surface, an inner side surface, a first combination section extending from a part of the outer side surface toward the power seat, and a second combination section extending from another part of the outer side surface, in which
• each of the first combination sections is assembled and arranged on the power seat respectively so that each of the first combination sections and the two side surfaces of the power seat respectively form an accommodation chamber for accommodating the wind impeller,
• each of the second combination sections is arranged correspondingly to each other so that the air outlet is formed between the second combination sections to communicate with each of the accommodation chambers;
• two air inlets, being formed by an aperture penetrating the outer side surface and the inner side surface of each half-shell and being communicated respectively to each accommodation chamber;
• a second joint, being corresponding to the first joint and provided on the outer side surface of each half-shell;
• a coupling key, being arranged between the first joint and the second joint to connect the half shells to the power seat;
• and
• at least one guiding protrusion, being arranged on the inner side surface of each first combination section and corresponds to the wind impeller.