Cross-flow wind turbine, and fan heater

Abstract

Disclosed are a cross-flow wind turbine and a fan heater applying the cross-flow wind turbine, in which the cross-flow wind turbine includes two fixing plates oppositely disposed and a plurality of blades connected between the two fixing plates, the plurality of blades being disposed at intervals along an outer edge of the fixing plate, and the blades are disposed twisted along an axial direction of the cross-flow wind turbine, and a relative twisting angle at both ends of one of the blades is no less than 5° and no more than 40°.

1 . A cross-flow wind turbine applied to a fan heater, comprising:
 two fixing plates disposed opposite to each other, and   a plurality of blades connected between the two fixing plates, the plurality of blades being disposed at intervals along an outer edge of each fixing plate,   wherein the plurality of blades are twisted along an axial direction of the cross-flow wind turbine, and a relative twisting angle at a first and second end of one of the plurality of blades is between 5° and 40°.   
     
     
         2 . The cross-flow wind turbine of  claim 1 ,
 wherein the plurality of blades are obliquely disposed between the two fixing plates along the axial direction of the cross-flow wind turbine, and   wherein an inclined angle θ formed between one of the plurality of blades and one of the fixing plates, is no less than 85° and no more than 88°.   
     
     
         3 . The cross-flow wind turbine of  claim 1 ,
 wherein a cross section of one of the plurality of blades has an arc shape with a chord length 6 mm to 8 mm.   
     
     
         4 . The cross-flow wind turbine of  claim 3 ,
 wherein a wheel diameter ratio d/D of a cross-flow wind turbine ranges from 0.7 to 0.85.   
     
     
         5 . The cross-flow wind turbine of  claim 1 ,
 wherein a thickness of one of the plurality of blades ranges from 0.3 mm to 0.5 mm.   
     
     
         6 . The cross-flow wind turbine of  claim 1 ,
 wherein an outer diameter D of a cross-flow wind turbine ranges from 30 mm to 100 mm, and   wherein a length of the cross-flow wind turbine ranges from 150 mm to 600 mm.   
     
     
         7 . The cross-flow wind turbine of  claim 1 ,
 wherein the cross-flow wind turbine comprises between 18 and 25 blades.   
     
     
         8 . The cross-flow wind turbine of  claim 1 ,
 wherein a wheel diameter ratio d/D of a cross-flow wind turbine ranges from 0.7 to 0.85.   
     
     
         9 . The cross-flow wind turbine of  claim 1 ,
 wherein the cross-flow wind turbine comprises a plurality of first blades and a plurality of second blades,   wherein one of the plurality of first blades and one of the plurality of second blades are alternately disposed; a width of the one of the plurality of first blades is greater than a width of the one of the plurality of second blades; and,   wherein a distance between two of the plurality of first blades and the plurality of second blades is alternately changed.   
     
     
         10 . A fan heater, comprising
 a shell, and   an air passage assembly disposed in the shell and comprising a volute and a cross-flow wind turbine, comprising:   two fixing plates disposed opposite to each other; and   a plurality of blades connected between the two fixing plates, the plurality of blades being disposed at intervals along an outer edge of each fixing plate,   wherein the plurality of blades are twisted along an axial direction of the cross-flow wind turbine, and a relative twisting angle at a first and second end of one of the plurality of blades is between 5° and 40°, and   wherein the cross-floss wind turbine is disposed in the volute.   
     
     
         11 . The fan heater of  claim 10 , further comprising:
 a rotating shaft disposed at a first end of the cross-flow wind turbine, and   a bearing sleeve disposed on the volute to accommodate the rotating shaft.   
     
     
         12 . The fan heater of  claim 11 ,
 wherein a shaft sleeve is disposed at a second end of the cross-flow wind turbine, and   wherein the air passage assembly further comprises a motor disposed in the volute; the shaft sleeve is sleeved on an output shaft of the motor.   
     
     
         13 . The fan heater of  claim 10 ,
 wherein the blades are obliquely disposed between the two fixing plates along the axial direction of the cross-flow wind turbine, and   wherein an inclined angle θ formed between the blades and the fixing plates, is no less than 85° and no more than 88°.   
     
     
         14 . The fan heater of  claim 10 ,
 wherein a cross section of one of the blades has an arc shape with a chord length 6 mm to 8 mm.   
     
     
         15 . The fan heater of  claim 14 ,
 wherein a wheel diameter ratio d/D of a cross-flow wind turbine ranges from 0.7 to 0.85.   
     
     
         16 . The fan heater of  claim 10 ,
 wherein a thickness of one of the blades ranges from 0.3 mm to 0.5 mm.   
     
     
         17 . The fan heater of  claim 10 , wherein
 an outer diameter D of a cross-flow wind turbine ranges from 30 mm to 100 mm, and a length of the cross-flow wind turbine ranges from 150 mm to 600 mm.   
     
     
         18 . The fan heater of  claim 10 ,
 wherein the cross-flow wind turbine comprises no less than 18 and no more than 25 blades.   
     
     
         19 . The fan heater of  claim 10 ,
 wherein a wheel diameter ratio d/D of a cross-flow wind turbine ranges from 0.7 to 0.85.   
     
     
         20 . The fan heater of  claim 10 ,
 wherein the cross-flow wind turbine comprises:   a plurality of first blades and a plurality of second blades, wherein   one of the first blades and one of the second blades are alternately disposed; a width of the one of the first blades is greater than a width of the one of the second blades; and,   a distance between two of the first blades and the second blades is alternately changed.