Wind driven generator with inner rotor and outer rotor opposite in rotation direction

Abstract

The utility model relates to an inner and outer rotor wind driven generator with opposite rotation directions, which comprises a mounting base, the mounting base comprises a conical ring-shaped base, a cylindrical ring-shaped connecting seat is formed at the upper end of the base, a flange is formed on the outer side edge of the lower end of the base, a vertical double-rotor generator is pivoted on the mounting base, the double-rotor generator comprises a central shaft, and the central shaft is pivoted on the mounting base. The middle part and the upper part of the central shaft are sleeved and fixedly connected with an inner rotor, the outer side of the inner rotor is sleeved with an outer rotor, and the upper end and the lower end of the outer rotor are connected to the central shaft through bearings; an inner rotor of the double-rotor generator is fixedly connected with a plurality of inner blades which are annularly and uniformly distributed, and an outer rotor of the double-rotor generator is fixedly connected with a plurality of outer blades which are opposite to the inner blades in direction and are annularly and uniformly distributed. The generator is simple, compact and reasonable in overall structure, reasonable in impeller distribution and arrangement, good in stability of wind power generation and high in effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of generator, more specifically relates to a kind of internal and external rotor wind-driven generators of opposite rotation direction. BACKGROUND

[0002] The existing horizontal axis wind turbine generally uses single rotor wind-driven generator, i.e. the impeller driven by wind-driven generator is arranged on the rotating shaft of engine to drive the rotation of rotor arranged on the rotating shaft to generate electricity, and then someone proposes to change the stator on wind-driven generator into movable structure, and make it rotate in the opposite direction of original rotor to drive, so that double times of power generation effect can be obtained, and then many structure designs of double rotor generator are proposed, but the impeller to drive the rotation of double rotor of generator is not in the same position, some impellers are arranged on both sides of generator, so that generator will block airflow, and affect the power generation effect of part of impeller, and some impellers are arranged on the same side of generator, but the dynamic balance in operation process is poor, and fault is prone to occur, so the stability of wind power generation is poor, so a double rotor wind-driven generator with reasonable structure, stable operation and high power generation efficiency needs to be designed SUMMARY

[0003] The utility model discloses to the deficiency of prior art, and provide a kind of internal and external rotor wind-driven generators of opposite rotation direction, the overall structure of generator is simple and compact and reasonable, impeller is distributed and set reasonably, and the stability of wind power generation is good, and effect is high.

[0004] A kind of internal and external rotor wind-driven generators of opposite rotation direction, including installation base, installation base includes the bottom of conical ring, the upper end of bottom is shaped with cylindrical ring-shaped connecting seat, the outer side of lower end is shaped with flange, vertically double rotor generator is pivoted on installation base, and double rotor generator includes center shaft, inner rotor is connected with the middle and upper part of center shaft and is sleeved, outer rotor is sleeved on the outer side of inner rotor, and the upper and lower ends of outer rotor are connected on center shaft by bearing;The inner rotor of double rotor generator is fixedly connected with a plurality of annular evenly distributed inner blades, and a plurality of outer blades are fixedly connected on the outer rotor and are annular evenly distributed and opposite to the direction of inner blade;

[0005] The outer blade comprises a vertical outer guide vane with a cross-section in the shape of an airfoil, and the upper and lower ends of the outer guide vane are respectively fixedly connected with an upper connecting rod and a lower connecting rod in the shape of "Z", the inner end of the lower connecting rod is fixedly connected with the outer rotor, the inner end of the upper connecting rod is fixedly connected with a circular connecting disc, the connecting disc is connected with the top end of a connecting shaft through a bearing, and the bottom end of the connecting shaft is fixedly connected with the upper end of a central shaft; a connecting disc is fixedly connected with the lower part of the connecting shaft; the inner blade comprises a vertical inner guide vane with a cross-section in the shape of an airfoil, and the inner guide vane is located on the inner side of the outer guide vane and is arranged between the upper connecting rod and the lower connecting rod; a horizontal support rod is fixedly connected with the middle part of the inner guide vane, the end of the support rod is fixedly connected with the lower end surface of the outer ring of the connecting disc, and an inclined reinforcing rod is fixedly connected with the upper end surface of the outer ring of the connecting disc; the outer ring of the reinforcing rod is fixedly connected with the middle and upper parts of the inner guide vane.

[0006] Preferably, the direction of the outer guide vane airfoil is opposite to the direction of the inner guide vane airfoil, and the support rod and the reinforcing rod are arranged between the upper connecting rod and the lower connecting rod.

[0007] The upper connecting rod and the lower connecting rod each comprise a horizontal outer support rod, an inner support rod and an inclined support rod, and the inclination direction of the inclined support rod of the upper connecting rod is opposite to the inclination direction of the inclined support rod of the lower connecting rod.

[0008] Preferably, the length of the outer guide vane is greater than the length of the inner guide vane.

[0009] Preferably, the upper and lower ends of the outer guide vane are respectively formed with outer lugs, the upper connecting rod and the lower connecting rod are respectively fixedly connected with the outer lugs on the outer guide vane through screws, the middle part and the middle and upper parts of the inner guide vane are respectively formed with inner lugs, and the support rod and the reinforcing rod are respectively fixedly connected with the inner lugs through screws.

[0010] Preferably, the inner rotor is composed of a rotor core and a winding wound on the rotor core, and a wire is electrically connected to the winding of the inner rotor; a wire slot is arranged in the central shaft, and the wire is inserted into the wire slot of the central shaft; the lower part of the central shaft extends out of the outer rotor and is connected with the connecting seat of the mounting base through a bearing, the bottom end of the central shaft extends out of the connecting seat and is formed with a connecting shaft, a locking nut is screwed and fixed on the connecting shaft, the locking nut abuts against the bearing in the connecting seat, the connecting shaft on the lower side of the locking nut is inserted into the base and is fixedly connected with an inner conducting ring through a sleeve, an outer connecting ring is sleeved on the inner conducting ring, an electric contact electrode electrically connected to the inner conducting ring is arranged on the inner side of the outer connecting ring, and an insulating shell is arranged on the outer side of the outer connecting ring; a support plate is fixedly connected with the insulating shell of the outer connecting ring through a bolt, the support plate is fixedly connected with the base, an electric cable is inserted into the base, and the electric cable is electrically connected with the electric contact electrode in the outer connecting ring.

[0011] Preferably, the outer rotor comprises a cylindrical annular outer shell, a plurality of annularly distributed permanent magnets are fixedly connected in the outer shell, end covers are respectively fixedly connected to the upper and lower ends of the outer shell, and a central shaft is arranged at the center of the end covers; the lower connecting rods are fixedly connected to the end cover at the upper end of the outer rotor, and the dual-rotor generator is arranged between the lower connecting rods.

[0012] Preferably, a vertical column is arranged below the mounting base, and the flange on the mounting base is fixedly connected to the top end of the column through a bolt assembly.

[0013] The utility model discloses the beneficial effect lies in:

[0014] The whole structure of the generator is simple, compact and reasonable, the impeller is reasonably arranged, the stability of the wind power generation is good, and the effect is high. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the structure schematic diagram of the front direction of the utility model;

[0016] Fig. 2 It is the structure schematic diagram of the front direction of the utility model;

[0017] Fig. 3 It is the section view schematic diagram of the dual-rotor generator part of the utility model.

[0018] In the drawing: 1, mounting base; 11, base; 12, flange; 13, connecting seat; 2, dual-rotor generator; 21, central shaft; 22, outer rotor; 23, inner rotor; 24, wire; 25, locking nut; 26, inner conducting ring; 3, adapter disc; 4, adapter shaft; 5, connecting disc; 6, outer connecting rod; 61, outer guide vane; 62, lower connecting rod; 63, upper connecting rod; 7, inner blade; 71, inner guide vane; 72, support rod; 73, reinforcing rod; 8, outer electric ring; 9, electric cable; 10, support plate. DETAILED DESCRIPTION

[0019] Embodiment: see Figs. 1 to 3 The utility model discloses a kind of inner and outer rotor wind-driven generators of opposite rotation direction, including mounting base 1, mounting base 1 includes conical annular base 11, the upper end of base 11 is shaped with cylindrical annular connecting seat 13, the outer side of lower end is shaped with flange 12, mounting base 1 is pivoted with vertical dual-rotor generator 2, dual-rotor generator 2 includes central shaft 21, central shaft 21 is set with inner rotor 23 in middle, upper portion, inner rotor 23 is sleeved with outer rotor 22 outside, and the upper and lower ends of outer rotor 22 are connected on central shaft 21 by bearing;The inner rotor 23 of the dual-rotor generator 2 is fixedly connected with a plurality of annularly distributed inner blades 7, and the outer rotor 22 is fixedly connected with a plurality of outer blades 6 which are opposite to the direction of inner blade 7 and annularly distributed.

[0020] The outer blade 6 comprises an outer guide vane 61 in wing type section and vertical direction, and the upper and lower ends of the outer guide vane 61 are fixedly connected with an upper connecting rod 63 and a lower connecting rod 62 in "Z" shape respectively, the inner end of the lower connecting rod 62 is fixedly connected with the outer rotor 22, and the inner end of the upper connecting rod 63 is fixedly connected with a circular connecting disc 5, the connecting disc 5 is connected with the top end of a connecting shaft 4 through a bearing, and the bottom end of the connecting shaft 4 and the upper end of a central shaft 21 are fixedly connected together; a connecting disc 3 is fixedly connected with the lower part of the connecting shaft 4; the inner blade 7 comprises an inner guide vane 71 in wing type section and vertical direction, and the inner guide vane 71 is located at the inner side of the outer guide vane 61 and is arranged between the upper connecting rod 63 and the lower connecting rod 62, the middle part of the inner guide vane 71 is fixedly connected with a horizontal support rod 72, the end of the support rod 72 is fixedly connected with the lower end face of the outer circle of the connecting disc 3, the upper end face of the outer circle of the connecting disc 3 is fixedly connected with a diagonal reinforcing rod 73, and the outer circle of the reinforcing rod 73 is fixedly connected with the middle and upper parts of the inner guide vane 71.

[0021] The direction of the wing type of the outer guide vane 61 is opposite to the direction of the wing type of the inner guide vane 71, and the support rod 72 and the reinforcing rod 73 are arranged between the upper connecting rod 63 and the lower connecting rod 62; so that the outer blade 6 and the inner blade 7 can drive the outer rotor 22 and the inner rotor 23 on the double-rotor generator 2 to rotate in opposite directions under the action of wind force, and double power generation is realized.

[0022] The upper connecting rod 63 and the lower connecting rod 62 each comprise an outer branch, an inner branch and a diagonal branch, the inclination direction of the diagonal branch of the upper connecting rod 63 is opposite to the inclination direction of the diagonal branch of the lower connecting rod 62, the overall structure of the outer-rotor wind power generator is the outer guide vane 61, the inner guide vane 71 and the double-rotor generator 2 from outside to inside, and the components connected with the double-rotor generator 2 of the outer guide vane 61 and the inner guide vane 71 will not interfere with each other in the rotating process.

[0023] The length of the outer guide vane 61 is greater than the length of the inner guide vane 71, and the outer shape and size of the section of the outer guide vane 61 are the same as the outer shape and size of the section of the inner guide vane 71.

[0024] The upper and lower ends of the outer guide vane 61 are respectively formed with outer lugs, the upper connecting rod 63 and the lower connecting rod 62 are fixedly connected with the outer lugs on the outer guide vane 61 through screws, the middle part and the middle and upper parts of the inner guide vane 71 are respectively formed with inner lugs, and the support rod 72 and the reinforcing rod 73 are fixedly connected with the inner lugs through screws, so as to facilitate the assembly and disassembly of the outer guide vane 61 and the inner guide vane 71.

[0025] The inner rotor 23 is composed of a rotor core and a winding around the rotor core, and the winding of the inner rotor 23 is electrically connected with a wire 24, the central shaft 21 is provided with a threading groove, and the wire 24 is inserted into the threading groove of the central shaft 21; the lower part of the central shaft 21 extends out of the outer rotor 22 and is connected to the connecting seat 13 of the mounting base 1 through a bearing, the bottom end of the central shaft 21 extends out of the connecting seat 13 and is formed with a connecting shaft 211, the connecting shaft 211 is screwed and fixed with a locking nut 25, the locking nut 25 abuts against the bearing in the connecting seat 13, the connecting shaft 211 at the lower side of the locking nut 25 is inserted into the base 11 and is fixed with an inner conductive ring 26, the inner conductive ring 26 is sleeved with an external electric ring 8, the inner side of the external electric ring 8 is provided with an electric electrode electrically connected with the inner conductive ring 26, and the outer side is provided with an insulating shell seat, the insulating shell seat of the external electric ring 8 is fixed with a support plate 10 through a bolt, the support plate 10 is fixed in the base 11, the base 11 is inserted with an electric cable 9, the electric cable 9 is electrically connected with the electric electrode in the external electric ring 8, and the electricity generated by the double-rotor generator 2 is output and stored through the wire 24, the inner conductive ring 26, the external electric ring 8 and the electric cable 9.

[0026] The outer rotor 22 includes a cylindrical annular outer shell 221, a plurality of annular permanent magnets 222 are fixedly connected in the outer shell 221, end covers 223 are fixedly connected to the upper and lower ends of the outer shell 221 respectively, and the central shaft 21 is arranged at the center of the end covers 223.

[0027] The mounting base 1 is provided with a vertical column below, the flange 12 on the mounting base 1 is fixed with the top end of the column through a bolt assembly, in order to improve the wind power generation effect, the wind power generator needs to be arranged in the sheltered high altitude, so the column needs to be arranged.

[0028] Working principle: the structure is a wind power generator with opposite rotating directions of the inner and outer rotors, and the overall structure of the wind power generator is sequentially arranged from the outside to the inside as the outer guide blade 61, the inner guide blade 71 and the double-rotor generator 2, the double-rotor generator 2 is arranged at the inner side of the outer guide blade 61 and the inner guide blade 71, and the influence effect of the shelter is small, and the outer guide blade 61 and the inner guide blade 71 are arranged at the inner and outer sides of the same part, which has two advantages, one is that the volume of the outer guide blade 61 and the inner guide blade 71 can be large (the volume is large, the wind area is large, and the power generation effect is good), and the influence on the dynamic and static balance is small, which is convenient for stable operation; the other is that the outer guide blade 61 and the inner guide blade 71 are arranged at the same best airflow position, and the same best airflow can drive the outer guide blade 61 and the inner guide blade 71 to operate, thereby improving the power generation efficiency. Fig. 2As shown, the same airflow can drive the outer guide vanes 61 to rotate in a clockwise direction (i.e., b direction), while the same airflow can drive the inner guide vanes 71 to rotate in a counterclockwise direction (i.e., a direction).

[0029] The embodiments are used to illustrate the present application, but not to limit the present application. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present application, and therefore the protection scope of the present application should be subject to the claims of the present application.

Claims

1. A wind power generator with opposite rotating direction of inner and outer rotors, comprising a mounting base (1), the mounting base (1) comprises a conical ring-shaped base (11), the upper end of the base (11) is formed with a cylindrical ring-shaped connecting seat (13), the outer side of the lower end is formed with a flange (12), characterized in that: The vertical double-rotor generator (2) is pivoted on the mounting base (1), and comprises a central shaft (21), an inner rotor (23) sleeved and fixed to the middle and upper part of the central shaft (21), and an outer rotor (22) sleeved to the outer side of the inner rotor (23), with the upper and lower ends of the outer rotor (22) connected to the central shaft (21) through bearings; a plurality of annular and uniformly distributed inner blades (7) are fixed to the inner rotor (23) of the double-rotor generator (2), and a plurality of annular and uniformly distributed outer blades (6) are fixed to the outer rotor (22) and opposite to the inner blades (7) in direction. The outer blade (6) comprises a vertical outer guide vane (61) in airfoil section, and the upper and lower ends of the outer guide vane (61) are fixed with an upper connecting rod (63) and a lower connecting rod (62) in "Z" shape respectively, the inner end of the lower connecting rod (62) is fixed to the outer rotor (22), and the inner end of the upper connecting rod (63) is fixed to a circular connecting disc (5), the connecting disc (5) is connected to the top end of a connecting shaft (4) through a bearing, and the bottom end of the connecting shaft (4) and the upper end of the central shaft (21) are fixedly connected together; a connecting disc (3) is fixedly sleeved to the lower part of the connecting shaft (4); the inner blade (7) comprises a vertical inner guide vane (71) in airfoil section, which is located on the inner side of the outer guide vane (61) and arranged between the upper connecting rod (63) and the lower connecting rod (62), and a horizontal support rod (72) is fixed to the middle part of the inner guide vane (71), the end of the support rod (72) is fixed to the lower end face of the outer circle of the connecting disc (3), an inclined reinforcing rod (73) is fixed to the upper end face of the outer circle of the connecting disc (3), and the outer circle of the reinforcing rod (73) is fixed to the middle and upper part of the inner guide vane (71).

2. The wind power generator with opposite rotation direction of inner and outer rotors according to claim 1, characterized in that: The direction of the airfoil section of the outer guide vane (61) is opposite to that of the inner guide vane (71), and the support rod (72) and the reinforcing rod (73) are arranged between the upper connecting rod (63) and the lower connecting rod (62). The upper connecting rod (63) and the lower connecting rod (62) each comprise a horizontal outer support rod, an inner support rod and an inclined support rod, and the inclination direction of the inclined support rod of the upper connecting rod (63) is opposite to that of the inclined support rod of the lower connecting rod (62).

3. A wind power generator with opposite rotation direction of inner and outer rotors as claimed in claim 2, characterized in that: The length of the outer guide vane (61) is greater than that of the inner guide vane (71).

4. The wind power generator with opposite rotation direction of inner and outer rotors according to claim 2, characterized in that: The upper and lower ends of the outer guide vane (61) are respectively formed with outer lugs, the upper connecting rod (63) and the lower connecting rod (62) are fixed to the outer lugs of the outer guide vane (61) through screws, the middle part and the middle and upper parts of the inner guide vane (71) are respectively formed with inner lugs, and the support rod (72) and the reinforcing rod (73) are fixed to the inner lugs through screws.

5. The wind power generator with opposite rotation direction of inner and outer rotors according to claim 1, characterized in that: The inner rotor (23) is composed of a rotor core and a winding around the rotor core, and the winding of the inner rotor (23) is electrically connected with a wire (24), the center shaft (21) is provided with a threading groove, and the wire (24) is inserted into the threading groove of the center shaft (21); the lower part of the center shaft (21) extends out of the outer rotor (22) and is connected to the connecting seat (13) of the mounting base (1) through a bearing, the bottom end of the center shaft (21) extends out of the connecting seat (13) and is formed with a connecting shaft (211), the connecting shaft (211) is screwed and fixed with a locking nut (25), the locking nut (25) abuts against the bearing in the connecting seat (13), the connecting shaft (211) on the lower side of the locking nut (25) is inserted into the base (11) and is inserted and fixed with an inner conductive ring (26), the inner conductive ring (26) is sleeved with an outer electric ring (8), the inner side of the outer electric ring (8) is provided with an electric electrode electrically connected with the inner conductive ring (26), and the outer side is provided with an insulating shell seat, the insulating shell seat of the outer electric ring (8) is fixed with a support plate (10) through a bolt, the support plate (10) is fixed in the base (11), the base (11) is inserted with an electric cable (9), and the electric cable (9) and the electric electrode in the outer electric ring (8) are electrically connected.

6. A wind power generator with opposite rotation direction of inner and outer rotors as claimed in claim 5, characterized in that: The outer rotor (22) includes a cylindrical annular outer shell (221), a plurality of annular permanent magnets (222) are fixedly connected in the outer shell (221), end covers (223) are fixedly connected to the upper end and the lower end of the outer shell (221), and the center shaft (21) is arranged at the center of the end covers (223); the lower connecting rods (62) are fixedly connected to the end covers (223) at the upper end of the outer rotor (22), and the double-rotor generator (2) is arranged between the lower connecting rods (62).

7. The wind power generator with opposite rotation direction of inner and outer rotors according to claim 1, characterized in that: The mounting base (1) is provided with a vertical column below, and the flange (12) on the mounting base (1) is fixed with the top end of the column through a bolt assembly.

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