TH12181B - Air-flow type fan - Google Patents

Abstract

DC60 (19/06/44) This invention relates to a low-noise, transverse-flow air fan. Much during its working If assuming the initial radius of the curl section, which is, the length of the segment O - F1 at the beginning of the curl F1, is R1, given the maximum radius of the curl, that is , The length of the O - F2 segment at the beginning of the exit section F2, is RM, given the maximum curl angle, that is, the angle formed from the O - F2 segment with staggered. The segment O - F1, is alpha M, and gives that point on the helix section in such a way that its distance to the center O of the rotating shaft is Rj = (R1 + RM) / 2 and the angle. Alpha j formed from, in one way The segment which connects that point to the center O of the rotating shaft and, on the other hand, the O - F1 segment is alpha M / 2 (= F1 - O - Fj) to Fj, the roll segment. Coil of the housing of the coil Will form an arc of a circle in such a way that R1 < Rj < RM, and in such a way that the arc The circle passes through points F1, Fj, and F2. This invention relates to low-noise transverse air-flow fans. Much during its working If assuming the initial radius of the curl section, which is, the length of the segment O-F1 at the beginning of the curl F1, is R1, given the maximum radius of the curl, that is , The length of the O-F2 segment at the beginning of the F2 exit segment, is Rm, given the maximum curl angle, that is, the angle formed from the O-F2 segment with staggered. The O-F1 segment, is alpha m, and gives that point on the helix section in such a way that its distance to the center O of the rotating shaft is Rj = (R1 + Rm) / 2 and the angle. Alpha j formed from, in one way The segment which connects that point to the center O of the rotating shaft and, on the other hand, the O-F1 segment is alpha m / 2 (= F1 -O - Fj) as Fj, the roll segment. Coil of the housing of the coil Will form an arc of a circle in such a way that R1 < R1 < Rm, and in the manner that the arc Of a circle passing by points F1, Fj, and F2,

Claims (6)

1. The transverse-flow fan consists of: impeller with the O center of the rotating shaft and the diameter in OD, the housing of the winder consisting of the recirculation starter, which extends from the start of the rotation Fo to the starting point. Of the curl section F1; Coiled section, which extends from the beginning of the coiled section F1 to the beginning of the outlet section. F2, and exit channel segment A nose-shaped part with a stabilizer; And the air inlet arranged outside of the recirculation start Fo, where the recirculation initiation was formed as a circular arc with the center O of the rotating shaft as the center and by the starting angle The alpha o rotation formed from the O-Fo segment with the O-F1 segment is equal in size 15 ํ to 25 ํ and the starting radius of the Ro, the starting radius of Ro is The length of the segment which connects the rotation origin Fo to the center O of the rotating shaft, which is 0.535 to 0.555 x OD, and where the length of the segment OF which connects the center O of the rotating shaft to The custom point F on the curl section is the custom radius R, the angle formed from the OF segment with the O-F1 segment in alpha, and the maximum curl angle. Formed from the O-F2 segment with the segment O-F1 as alpha m, the helix is formed in the logarithmic helix shape corresponding to the formula: R = R1 x. EXP (IL x 2 x Pialfa / 360 °) where IL (coiled expansion ratio) = 0.18 to 0.23; O < Alpha &lt; Alpha m and alpha m = 60 ํ to 90 ํ 2. Transverse-flow fan according to claim No. 1 where the outlet section has side guides. The lower part of the air outlet, and has formed in such a way that the air flow passageway expands Exit towards the guide below the air exit channel. 3. Transverse-flow fan according to claim 2, where the initial radius of the outlet section, where the initial radius of the outlet section is the length of the O-F2 segments connecting the center O of the The rotating shaft with the beginning of the outlet segment F2 will be R2, the exit radius where the exit segment ends radius is the length of the O-F3 segment, which connects the O center of the pivot shaft to the point. The end of the outlet segment F3 is R3 and the angle F2-O-F3 is the angle of the alpha 3 outlet segment, the outlet segment is formed into a circular arc where R2 &lt; R3, R3 /. R2 = 1.1 to 1.8 x ํ D / 2, and alpha 3 = 125 ํ to 145 ํ and the arc of the circle touches the guide below. Air outlet at the end of the outlet segment F3. 4. The transverse-flow fan consists of: impeller with the center O of the rotating shaft and diameter in D, the housing of the spool, which consists of a recirculation starter, which extends from the start, the rotation Fo to the starting point. Of the helical section F1, the helical section which extends from the beginning of the helical section F1 to the beginning of the outlet section F2 and the outlet section which extends from the beginning of the exit F2 to End of the outlet segment F3, nose section with stabilizer; And the air inlet arranged outside of the recirculation start Fo, where the recirculation initiation was formed as a circular arc with the center O of the rotating shaft as the center and where the starting angle The alpha-o rotation formed from the O-Fo segment and the O-F1 segment is equal in size 15 ํ to 25 ํ, and the starting radius Ro, with the starting radius, Ro is the current. The length of the segment connecting the rotational origin Fo and the center O of the spinning shaft is equal to 0.535 to 0.555 x D, and where the initial radius of the helix section. Where the initial radius of the coiled section is the length of the O-F1 segment at the beginning of the coiled section F1 is R1, the maximum radius of the coiled section by The maximum curl is the length of the O-F2 segment at the beginning of the outlet section, F2 will be Rm, the maximum curl angle. The maximum curl angle is the angle formed from the O-F2 segment and the O-F1 segment is alpha m, and the Fj point on the curl section has a distance to the center O. Of the rotating shaft is Rj = (R1 + Rm) / 2 and the segment alpha j formed from the segment which connects the point to the center O of the rotating shaft and the segment O-F1 is the alpha. m / 2 and the helical part is formed as a circular arc in such a way that R1 &lt; R2 &lt; Rm, and where the circular arc passes through points F1, R3 and F2. 5. Transverse-flow fan according to claim 4, where the outlet section has a guide below. Of the air outlet, and is formed in such a way that the passage of the air flow Extend into the guide below the air exit. 6. Transverse-flow fan according to claim 5, where the initial radius of the outlet section, where the initial radius of the outlet section is the length of the O-F2 segments connecting the center O. Of the rotating shaft with the beginning of the outlet segment F2, will be R2, the ending radius of the outlet segment. Where the end radius of the outlet portion is the length of the O-F3 segment, which connects the center O of the pivot shaft to the end of the outlet segment, F3 is R3, and the angle F2-O-F3 is the angle of As for the alpha-3 outlet, the outlet portion is formed as a circular arc in such a way that R2 &lt; R3, R3 / R2 = 1.1 to 1.8 x D / 2, and alpha 3 = 125 ํ. To 145 °, and the arc of the circle will touch the side guide. The bottom of the air outlet at the end of the outlet segment F3.