Air duct variable type cooling and heating recirculating fan
A variable and circulating fan technology, applied in the direction of non-variable pumps, heating methods, space heating and ventilation, etc., can solve the problems of unsatisfactory somatosensory effects, mixed cold air, large heating air volume, etc., to achieve a comfortable experience , optimized performance, strong blowing effect
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Embodiment 1
[0064] Such as Picture 1-1 with Figure 1-2 As shown, the switch device 15 used in this embodiment is a windshield 15a arranged on the outer surface of the rear net cover 11, and one or more windshields 15a are arranged along the outer circumferential direction of the radial air inlet 111, and each windshield 15a One end of the windshield 15a forms a rotary hinge with the rear grille 11 through the hinge mechanism 15a1, and the other end is provided with a buckle 15a2 that can be snapped and fixed with the rear grille 11; , the windshield 15a opens the radial air inlet 111, and when the windshield 15a reversely rotates to the radial air inlet 111 and fits the rear mesh cover 11, the windshield 15a closes the radial air inlet 111, and It is fastened and fixed with the rear net cover 11 through buckles.
[0065] Here, the hinge mechanism is arranged at one end of the radial air inlet 111 , and the windshield 15 a controls the opening and closing of the radial air inlet 111 by ...
Embodiment 2
[0068] The difference with embodiment 1 is: as diagram 2-1 with 2-2 As shown, along the circumferential direction of the rear grille 11, there are a plurality of radial air inlets 111 arranged parallel to the axial direction of the blades 14, and the switch device 15 is arranged on the outside of each radial air inlet 111 and connected with The fan blade 14 is a plurality of windshields 15b arranged in parallel in the axial direction, and the two ends of each windshield 15b are respectively provided with a rotating shaft 15b1 and a limit shaft 15b2 protruding along its length direction, and the two ends of the radial air inlet 111 A ring-shaped front support plate 16b1 and a rear support plate 16b2 are respectively provided, and along the circumferential direction of the front support plate 16b1 and the rear support plate 16b2, a plurality of positioning holes a and limiting holes a which are arranged in a one-to-one correspondence in the axial direction are respectively prov...
Embodiment 3
[0076] The difference with above-mentioned embodiment 1 and embodiment 2 is: as Figure 3-1 with Figure 3-2 As shown, the present embodiment is provided with a plurality of radial air inlets 111 along the circumferential direction of the rear grille 11, and the switch device 15 is an annular windshield ring 15c arranged on the inside or outside of the rear grille 11, and the annular windshield The axial dimension of the ring 15c is greater than or equal to the axial dimension of the radial air inlet 111, and the annular windshield ring 15c can axially move in and out of the position of the radial air inlet 111 to control the opening or closing of the radial air inlet 111. Preferably, the annular windshield ring 15c is a cylindrical annular casing that fits on the outer surface of the rear grille 11 , and the annular windshield ring 15c forms a sliding connection with the rear grille 11 in the axial direction.
[0077] Take the annular wind-shielding ring 15c arranged on the ...
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