WO2003081035A1

WO2003081035A1 - Wind power generator for vehicle

Info

Publication number: WO2003081035A1
Application number: PCT/JP2002/009443
Authority: WO
Inventors: Hareyuki Nishida
Original assignee: Kanki, Kenzou
Priority date: 2002-03-25
Filing date: 2002-09-13
Publication date: 2003-10-02
Also published as: JP2003278641A; AU2002332177A1

Abstract

An wind power generator for vehicle in which generation efficiency is enhanced by reducing air resistance. The wind power generator is installed on the cabin roof (15) of a vehicle. The vehicle includes a baggage box (12) having an upper surface (14) higher than the cabin roof. The wind power generator comprises a wind guide plate (21) disposed on the cabin roof and reducing air resistance of the vehicle, and a wind mill (22) disposed between the wind guide plate and the baggage box on the cabin roof and comprising a rotor (26) and a generator (30) generating power as the rotor rotates. The rotor (26) is disposed to extend in the widthwise direction of the vehicle and comprises a plurality of blades (29) arranged on the surface thereof. When the vehicle is traveling, the plurality of blades (29) receive air flowing along the wind guide plate (21) thus rotating the rotor (26).

Description

Specification

Wind power generator for vehicles

[Technical field]

The present invention relates to a wind power generator for a vehicle.

[Background technology]

Electricity usage in vehicles is on the rise due to an increase in various electrical components such as car air conditioners. In order to cope with the increase in the amount of electricity used, for example, it is conceivable to increase the size of the alternator to increase the amount of power generated by the vehicle.

In addition, it has been proposed to attach a wind power generator to a vehicle roof, for example, so that the alternator does not need to be large. In this case, the windmill rotates due to the airflow that is relatively generated as the vehicle travels, and the rotation of the windmill generates power. It is desirable that the wind turbine be installed so as to suppress the increase in air resistance. In addition, it is desirable that the wind turbine be installed so as to suppress an increase in vehicle width, vehicle height, etc.

In a vehicle such as a truck having a packing box whose upper surface is higher than the cabin roof, the relative airflow is caught by the front of the packing box during traveling, and the air resistance increases. For this reason, an air deflector is installed on the cabin roof to reduce the increase in air resistance.

For example, a truck described in German Patent No. 3611750 is provided with a solar panel 91 and a wind power generator 92 as shown in FIG. The solar power generation panel 91 is attached to an air deflector 93 that covers the entire cabin roof, and the wind power generator 92 is installed between the air deflector 93 and the cabin roof. An air inlet 94 is formed in the air deflector 93, and the windmill 95 of the wind power generator 92 is rotated by the air flowing from the inlet 94. With the rotation of the windmill 95, the generator 96 rotates to generate electricity. However, in the conventional wind turbine generator 92, when the wind turbine 95 is disposed at a position away from the inlet 94, the airflow to the wind turbine 95 becomes weak. Therefore, the wind turbine 95 must be located near the inlet 94. Near the inlet 9 4 Due to the lack of space, a small windmill 95 must be used. The air deflector 93 is large enough to cover the entire cabin roof, and its production cost is high.

[Disclosure of the Invention]

An object of the present invention is to provide a vehicle wind power generator that can reduce air resistance and improve power generation efficiency.

In order to achieve the above object, according to a first aspect of the present invention, there is provided a vehicle wind power generator installed on a cabin roof of a vehicle. The vehicle includes a cargo box having a top surface that is higher than the cabin roof. The wind power generator for a vehicle is provided on a cabin roof and reduces the air resistance of the vehicle. A wind power generator is provided on the cabin roof between the wind guide plate and the packing box. And a wind turbine having a generator that generates power with rotation. The rotor is arranged to extend in the vehicle width direction of the vehicle, and has a plurality of blades arranged on the surface thereof. When the vehicle travels, the rotor rotates by receiving air flowing along the air guide plate.

The generator is preferably arranged inside the rotor.

It is preferable that the vehicle wind power generator further includes a driving unit that changes the inclination of the wind guide plate.

Preferably, the drive means includes a cylinder.

It is preferable that each of the plurality of blades be curved along the rotation direction of the windmill, or be curved along the direction opposite to the rotation direction of the windmill. The rotor preferably includes a plurality of auxiliary members 44 provided between the tip of one adjacent blade and the base of the other blade to reduce the air resistance of the windmill.

The windmill may be one of a plurality of windmills provided in series in the vehicle width direction.

According to a second aspect of the present invention, there is provided a vehicle including: a cabin roof; a packing box having an upper surface higher than the cabin roof; and a wind turbine generator installed on the cabin roof. The wind turbine is installed on the cabin roof and reduces the air resistance of the vehicle. A wind guide plate to be reduced, and a wind turbine provided on the cabin roof between the wind guide plate and the packing box, the wind turbine having a rotor and a generator that generates power as the rotor rotates. The rotor is arranged to extend in the vehicle width direction of the vehicle, and has a plurality of blades arranged on the surface thereof. When the vehicle runs, the rotor rotates by receiving air flowing along the baffle plate.

Further, it is preferable to provide a driving means for changing the inclination of the air guide plate.

According to a third aspect of the present invention, there is provided a method of generating electric power by a wind turbine generator provided in a vehicle. The vehicle includes a cabin roof and a cargo box having a top surface that is higher than the cabin roof. The wind power generator includes a wind guide plate having a wind guide plate for reducing the air resistance of the vehicle, and a wind turbine having a rotor and a generator for generating electric power according to the rotation of the rotor, wherein the rotor extends in the vehicle width direction of the vehicle. A plurality of vanes are arranged and arranged on its surface. The power generation method includes a step of disposing a wind guide plate on a cabin roof of a vehicle, a step of disposing a wind turbine on a cabin roof between a wind guide plate and a packing box, and running the vehicle. And rotating the rotor by receiving air flowing along the air guide plate by the plurality of blades.

Further, it is preferable to include a step of changing the inclination of the air guide plate, or a step of storing electricity generated in the power generation step in a battery.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a conventional vehicle wind power generator.

FIG. 2A is a schematic partial side view of a truck to which the vehicle wind power generator according to one embodiment of the present invention is attached.

FIG. 2B is a schematic partial cutaway view of the rotor of the wind turbine generator of FIG. 2A.

FIG. 3A is a schematic side view of the experimental apparatus of the wind power generator of FIG. 2A.

FIG. 3B is a schematic partial side view of another experimental apparatus.

FIG. 3C is a schematic partial side view of another experimental apparatus.

FIG. 4 is a schematic partial cutaway view of another rotor.

FIG. 5A is a schematic partial side view of another vehicle wind power generator. FIG. 5B is a schematic partial side view of another vehicle wind power generator. FIG. 6A is a schematic partial side view of another vehicle wind power generator.

FIG. 6B is a schematic partial side view of another vehicle wind power generator.

FIG. 7A is a schematic partial side view of another vehicle wind power generator.

FIG. 7B is a schematic partial cutaway view of a rotor of another wind power generator.

FIG. 8 is a schematic front view of a rotor of another wind power generator.

[Best Mode for Carrying Out the Invention]

Hereinafter, a vehicle wind power generator 23 according to an embodiment of the present invention will be described with reference to FIGS. FIG. 2A is a schematic partial side view of a truck 11 to which a vehicle wind power generator 23 is attached, and FIG. 2B is a schematic partial cutaway view of a rotor 26 of the vehicle wind power generator 23. is there.

As shown in FIG. 2A, the position of the upper surface 14 of the packing box 12 of the truck 11 is higher than that of the cabin roof 15. A wind guide plate 21 and a windmill 22 are attached to the cabin roof 15. The windmill 22 is mounted behind the wind guide plate 21. The vehicle wind power generator 23 includes a wind guide plate 21 and a windmill 22.

As shown in FIG. 2B, a pair of support members 24 that support the windmill 22 are attached to the cabin roof 15. Each support member 24 supports a support shaft 25 along the vehicle width direction. On the support shaft 25, a bottomed cylindrical rotor 26 is rotatably supported. The rotor 26 has plate portions 27 at both ends, and a bearing 28 is attached to the center of each plate portion 27. The rotor 26 has a blade 29 attached thereto. In the present embodiment, six blades 29 are attached to the rotor 26.

A generator 30 is provided inside the rotor 26. The generator 30 has a cylindrical portion 31 formed rotatably with respect to the support shaft 32. A magnet (not shown) is attached to the inner peripheral surface of the cylindrical portion 31, and a coil (not shown) is attached to the support shaft 32. When the cylindrical portion 31 rotates with respect to the support shaft 32, the generator 30 generates electricity. The support shaft 32 of the generator 30 rotates at both ends connected to the support shaft 25, respectively. Absent. The cylindrical portion 31 of the generator 30 is attached to the inner peripheral surface of the rotor 26 so as to be integrally rotatable. The coil of the generator 30 is connected to a battery 33 provided in the truck 11 via wiring 34, and the electricity generated by the generator 30 is stored in the battery 33.

The air guide plate 21 is attached to the front end of the cabin roof 15 and is inclined rearward and upward. The air guide plate 21 is formed slightly curved rearward. The length from the lower end to the upper end of the baffle plate 21 is the predetermined length, and the height from the cabin roof 15 to the upper end of the baffle plate 21 is the predetermined height h. In addition, a baffle plate 21 is formed.

The predetermined length and the predetermined height h of the wind guide plate 21 are set according to the size of the truck 11 and the windmill 22, the vehicle speed, the power generation amount of the vehicle wind power generation device 23, and the like by wind tunnel experiments and the like. Is done. In the present embodiment, the vehicle speed is a speed in a normal running state of the truck 11. The vehicle speed is, for example, the speed when the truck 11 runs on a public road that is not a highway, and is, for example, 40 km / h to 50 km / h.

Next, the operation of the vehicle wind power generator 23 will be described.

In the running state of the truck 11, an airflow is relatively generated from the front to the rear of the truck 11. Above the cabin roof 15, the airflow is guided by the air guide plate 21 toward the upper blade 29 of the windmill 22. The upper blades 29 of the windmill 22 receive a backward force due to the airflow. The lower blades 29 of the windmill 22 are interrupted by the baffle plate 21 and do not receive airflow, or receive less airflow than the upper blades 29 when receiving airflow. Therefore, the windmill 22 rotates such that the upper part moves rearward and the lower part moves forward. In FIG. 2A, the rotation direction of the windmill 22 is clockwise. After rotating the windmill 22, the airflow moves to the upper surface 14 of the packing box 12. The electricity stored in the battery 33 is used for lighting the truck 11 and so on.

Next, an experimental example will be described.

FIG. 3A is a schematic side view of the experimental apparatus 100 according to the vehicle wind power generator 23. As shown in FIG. 3A, the experimental apparatus 100 includes a truck model 41. No. The model 41 is arranged so as to be able to move smoothly in the front-back direction. A blower (not shown) is provided in front of the model 41. A load cell 43 is disposed behind the model 41 via a support part 42, and a support shaft 41a extending rearward from the rear surface of the model 41 is attached to the load cell 43. . The load cell 43 has a built-in strain gauge, and the load cell 43 detects a voltage corresponding to a load received via the support shaft 41a. The load cell 43 detects the air resistance of the model 41 due to the wind from the blower.

In the model 41, the height from the ground contact surface of the tire to the upper surface 14 of the packing box 12 is 16.5 mm, and the width of the packing box 12 is 100 mm. Therefore, the projected area S of the front of the model 41 is S = 165 mm × 100 mm = 0.0165 m ² . In the model 41, the height from the ground contact surface of the tire to the cabin roof 15 is 110 mm, and the difference in height between the upper surface 14 and the cabin roof 15 is 55 mm. The length of the cabin roof 15 in the front-rear direction is 8 O mm, and the length of the cabin roof 15 in the vehicle width direction is 9 O mm. The length of the packing box 12 in the front-rear direction is 20 O mm.

In the experiment, the blower supplied a wind of 11.3 mZ s to the model 41. The air resistance C of the model 41 is obtained from the voltage value E obtained by the load cell 43.

C = (0.24 6 5 E + 0 .0 0 1 5) X9.8 (1)

Obtained by

The air resistance coefficient C _D commonly used to represent air resistance is

C _D = C / (1/2 _P V ² S)… Equation (2)

Required by

In the experiment, the air density / 0 = 1. 2 kg / m wind speed V = ll. S mZ s, projected area S = 0. 0 1 6 5 m 2 to the front of the model type 4 1,

C _D = C / ( ^1/2 X 1.2 X 1 1.3 ² X 0. 0 1 6 5)… Equation (3)

The air drag coefficient C _D was calculated by

Wind guide plates 21 with lengths of 3 O mm and 5 O mm from the upper end to the lower end were used. In each case, the inclination of the air guide plate 21 was changed to The height h to the upper end of the plate 21 was changed. The 3 Omm air guide plate 21 is not curved, and the 5 Omm air guide plate 21 is slightly curved backward.

Three types of windmills 22, 22, 22A and 45 shown in Figs. 3A to 3C were used. In the wind turbine 22 shown in FIG. 3A, the diameter of the rotor 26 is 25 mm, the length of the blade 29 in the radial direction is 8 mm, and the turning radius of the wind turbine 22 is 25 mm Z 2 +8 mm = 20.5 mm. is there. Inside the rotor 26, a small motor was stored instead of the generator 30. The motor shaft was mounted on the support shaft 25, and the main body of the motor was mounted on the rotor 26 so as to be integrally rotatable. When the windmill 22 rotates, the main body of the motor rotates integrally with the rotor 26 with respect to the motor shaft.

Axle 25 of wind turbine 22 25 forces 55 mm behind the front end of cabin roof 15 (25 mm before the front of packing box 12) and 33 mm above cabin roof 15 (top surface of packing box 1 2) (22 mm below 4).

The wind turbine 22 A shown in FIG. 3B has an auxiliary member 44 that covers the rotation direction side of each blade 29. Both ends of the auxiliary member 44 are attached to the tip of each blade 29 and the base end of the adjacent blade 29 on the rotation direction side. In this experiment, the auxiliary member 44 is formed of aluminum tape. The windmill 22 shown in FIG. 3A is referred to as six blades A, and the windmill 22A shown in FIG. 3B to which the auxiliary member 44 is attached is referred to as six blades B.

The windmill 45 shown in FIG. 3C has two blades 46. In the windmill 45, the diameter of the rotor 47 is 1 Omm, the radial length of the blade 46 is 15 mm, and the turning radius of the windmill 45 is 10 mmZ2 + 15 mm = 20 mm . The center axis of the windmill 45 is a rotating shaft 48 attached to the rotor 47 and rotating integrally with the rotor 47, and is rotatably supported by the support member 24 via a bearing 49. The rotating shaft 48 is arranged at the same position as the support shaft 25 (see FIG. 2B) of the wind turbine 22 shown in FIG. 3A.

Experiments were performed using the experimental apparatus 100 to change the height h by changing the inclination of the air guide plate 21, and the results shown in Tables 1 and 2 were obtained. Table 1 shows the results when the wind turbine 45 shown in Fig. 3C is used, and Table 2 shows the results when the wind turbines 22 and 22A shown in Figs. 3A and 3B are used. Tables 1 and 2 show that model 41 has wind guide plate 21 and windmill The rate at which the air resistance coefficient C _D was reduced compared to the case where 22, 22, A, and 45 were not installed (resistance reduction rate) is also shown. The rotation of the wind turbines 22, 22A, 45 was visually evaluated. In Tables 1 and 2, the case where the motor rotates very well is indicated by an evaluation symbol “◎”, and the case where the motor rotates frequently is indicated by an evaluation symbol “〇”. The case where the rotation speed is slower than the case where it turns well is considered to be possible to generate power is indicated by the evaluation code “△”. The stable case is indicated by the evaluation code "X". For comparison, as shown in Table 1, a plate covering the front end of the cabin roof 15 to the front end of the upper surface 14 of the packing box 12 and having a length of about 100 mm from the upper end to the lower end was attached. The resistance reduction rate in the case was also examined. In this case, no windmill can be installed.

Windmill Guide plate Guide plate c _D- resistance reduction rate Rotation of windmill

Height h (%)

Without windmill Without plate 0.6630 0.00

Without windmill (100mm board) (h55mm) 0.4702 29.08

2 blades without board 0.6500 1.96 X

2 blades h = 13mm 0.6449 2.73 △

2 blades 30mm root h = 18mm 0.6006 9.41 〇

2 blades 30mmfe h = 22mm 0.5585 15.76 ©

2 blades 30mm root h = 25mm 0.5167 22.07 〇

2 blades 30mm plate h = 28mm 0.5070 23.53 なし No wind turbine 30nmi¾ji h = 28niTi 0.5010 24.43

Without windmill 50mm plate h = 37mm 0.4980 24.89

2 blades 50mmflji h = 37mm 0.5023 24.24 Δ

2 blades 50mm plate h = 38mm 0.4931 25.62 Δ

2 blades 50mm board h = 39mm 0.4903 26.05 △

2 blades 50rran plate h = 41mm 0.4965 25.11 △ Table 2

As shown in Table 1, when the height h of the wind guide plate 21 is lower than the height (33 mm) of the center axis of the wind turbine 22, the higher the height h of the wind guide plate 21, the lower the resistance reduction rate When the height h of the wind guide plate 21 was higher than the height of the center axis of the wind turbine 22, the maximum value of the resistance reduction rate was obtained with respect to the change in the height h of the wind guide plate 21.

In the case of the wind guide plate 21 whose length from the upper end to the lower end is 3 Omm, the evaluation of the rotation of the windmill is “◎” when h = 22 mm, and the resistance reduction rate at that time is 15.7. 6%. At h = 25 mm and h = 28 mm, the wind turbine rotation evaluation was “〇”, and the resistance reduction rates were 22.0 7% and 23.5 3%, respectively. When h = 28 mm, the resistance reduction rate without the windmill 22 was 24.43%.

In the case of a wind guide plate 21 of 5 Omm from the upper end to the lower end, the maximum value of the resistance reduction rate of 26.05% was obtained when h = 39 mm. The evaluation of the rotation of the wind turbine was “△” at the height h of each wind guide plate 21. When h = 37 mm, the drag reduction rate with the windmill 22 was 24.24%, and the drag reduction rate without the windmill 22 was 24.89%. As shown in Table 2, it is considered that the set of the wind guide plate 21 and the wind turbine 22 enables wind power generation with substantially the same air resistance as the case where the wind turbine 22 is not provided.

As shown in Table 2, when h = 33 mm, the resistance reduction rate in the case of 6 blades A without the auxiliary member 44 is 23.18%, and the evaluation of the rotation of the windmill is “〇”. . In the case of the six blades B having the auxiliary member 44, the resistance reduction rate was 23.24%, and the evaluation of the rotation of the windmill was “◎”. Therefore, by attaching the auxiliary member 44, the auxiliary member Compared to the case where 4 is not installed, the same degree of resistance reduction is obtained, and it is considered that the power generation efficiency is improved.

The reason why the windmill 22 rotated very well by attaching the auxiliary member 44 is considered as follows. In the upper part of the windmill 22, the airflow flows upward from the blade 29 to the rear, so that the space (the portion indicated by A in FIG. 3B) on the rotational direction side of the blade 29 has an airflow. It is considered that a vortex is generated due to the peeling of the glass. It is considered that the region where the vortex exists was reduced by the auxiliary member 44, and it is considered that the windmill 22 rotated very well. Both ends of the auxiliary member 44 are attached to the tip of each blade 29 and the base end of the adjacent blade 29 on the rotation direction side, and the auxiliary member 44 is slanted. It is thought that the air resistance of 2 will decrease. In particular, it is considered that the air resistance received from the air between the lower blades 29 of the wind turbine 22 located behind the wind guide plate 21 (for example, the portion indicated by B in FIG. 3B) is reduced. Therefore, it is considered that the windmill 22 was rotated very well by the auxiliary member 4 4.

When a plate with a length of 10 O mm from the lower end to the upper end is attached and the front end of the cabin roof 15 is covered from the top surface 14 of the packing box 12, the drag reduction rate is 29.08%. I'm sorry.

The vehicle wind power generator according to the present embodiment has the following advantages.

(1) A wind guide plate 2 1 is arranged on the cabin roof 15 of the truck 1 1, and a windmill 22 is arranged between the wind guide plate 2 1 and the packing box 1 2. It is rotated by the airflow flowing along the plate 21. Further, since the windmill 22 is disposed between the wind guide plate 21 and the packing box 12, the windmill 22 can protrude above the wind guide plate 21, and the size of the wind turbine 22 can be increased as compared with the related art. Therefore, the wind guide plate 21 can secure a predetermined amount of the effect of reducing the air resistance of the truck 11, and the power generation efficiency can be improved by the wind turbine 22 larger than the conventional technology.

(2) By attaching the windmill 22 to the cabin roof 15 together with the wind guide plate 21, wind power can be generated with substantially the same air resistance as without the windmill 22. (3) Since the generator 30 is mounted inside the rotor 26, the blades 29 of the wind turbine 22 can be formed over the entire cabin roof 15 in the vehicle width direction. As a result, the area of the blade 29 receiving the wind is increased, and the power generation efficiency can be improved, as compared with a conventional power generator having a generator in the vehicle width direction and next to the wind turbine. Note that the embodiment is not limited to the above-described embodiment, and may be modified as follows, for example.

• The auxiliary member 4 is not limited to being formed of aluminum tape.

• The auxiliary member 44 may be formed so as to be curved outward in the radial direction of the windmill.

• A plurality of generators may be stored inside the rotor 26.

• As shown in FIG. 4, the generators 30 may be mounted inside both ends of the rotor 26, and the support shafts 32 of the generators 30 may be directly mounted on the support members 24, respectively.

• As shown in FIG. 5A, the blade 50a may be formed to be curved along the rotation direction of the windmill. In this case, the air resistance is more likely to be reduced than when the flat blades are formed to extend in the radial direction of the rotor. The relative speed of windmills that the vehicle travels is relatively higher than the natural wind that windmills that are fixed on the ground receive. Therefore, the blade 50a can sufficiently obtain the wind power required for rotation.

• As shown in FIG. 5B, the blade 5 Ob may be formed to bend along the direction opposite to the rotation direction of the windmill. Since the blade 50b is more susceptible to wind power than the non-curved blade 29, the blade 50b is preferably used when emphasizing wind power generation.

• The auxiliary member 44 may be attached to the blades 50a and 50b in FIGS. 5A and 5B.

'As shown in FIGS. 6A and 6B, the lower end 21 a of the air guide plate 21 may be rotatably supported by the cabin roof 15. In this case, for example, the cylinder 51 is attached to the cabin roof 15, and the piston rod 51 a of the cylinder 51 is attached to the upper end 21 b of the air guide plate 21. With the cylinder 51, the air guide plate 21 It is also possible to adjust the height of the wind guide plate 21 by changing the inclination and adjust the air flow to the windmill 22.

As shown in Table 1, when the height h of the wind guide plate 21 is set higher than when the rotation evaluation of the windmill 22 is “◎”, the rotation of the windmill 22 decreases, but the reduction rate of the air resistance is higher. In the case where the wind turbine is improved and the wind power generation is emphasized, the height h of the baffle plate 21 is set at a position where the windmill 22 can rotate most easily (see FIG. 6A). When importance is placed on reducing the air resistance, the height of the air guide plate 21 is increased by the operation of the cylinder 51 (see FIG. 6B).

For example, when traveling at low speeds, the effect of air resistance is less than when traveling at high speeds, so as shown in Fig. 6A, the cylinder 51 is contracted to increase the amount of air flowing to the windmill 22 to facilitate power generation. I do. For example, when the vehicle speed is increased from a general road to an expressway, the effect of air resistance is large. Therefore, as shown in Fig. 6B, the height h of the wind guide plate 21 is increased and the wind turbine 2 is increased. Reduce the amount of air going to 2, and lower the air resistance of the entire truck 1 1. In this case, since the windmill 22 rotates well even with a small airflow, the power generation by the windmill 22 can be kept. By appropriately changing the height h of the wind guide plate 21, it is possible to balance the reduction of the air resistance and the power generation.

The cylinder 51 is formed so that the driver operates by operating a switch in the cab. The cylinder 51 is formed so as to automatically change the height h of the baffle plate 21 to a preset height according to the vehicle speed in accordance with a signal from the vehicle speed sensor of the truck 11. You can.

The power generator may include a plurality of wind turbines 55, 56 in the vehicle width direction, for example, as shown in FIG. 7A. In this case, a support member 24 is additionally provided between the plurality of wind turbines 55, 56. The blades 57 of the windmill 55 on the end side in the vehicle width direction may be mounted obliquely such that the end side 57 b is located on the rotation direction side from the inner side 57 a in the vehicle width direction. In this case, the airflow toward the end portion in the vehicle width direction easily flows toward the side surface of the packing box 12.

• As shown in FIG. 7B, the coil 61 may be attached to the support shaft 25, and the magnet 62 may be attached to the inner peripheral surface of the rotor 26. In this case, the windmill Electric power is generated by the magnet 62 rotating integrally with the magnet 22 rotating around the coil 61.

• As shown in FIG. 8, when a generator cannot be installed inside the rotor 47, a generator 63 may be installed next to the windmill 45 in the vehicle width direction. In this case, the generator 63 includes a rotating shaft 65 rotatable with respect to the cylindrical portion 64. A coil (not shown) is attached to the inner peripheral surface of the cylindrical portion 64, and a magnet (not shown) is attached to the rotating shaft 65. The generator 63 generates electricity when the rotating shaft 65 rotates with respect to the cylindrical portion 64. The tubular portion 64 of the generator 63 is supported by the cabin roof 15 via a support member 66. The rotating shaft 65 is connected to the rotating shaft 48 that rotates integrally with the rotor 47 so as to be integrally rotatable.

• The wind power generator for vehicle 23 may be applied to a hybrid drive truck that can be driven by both gasoline and electricity, and the generated electricity may be used to drive a hybrid drive truck.

• If there is excess electricity generated by the wind turbine generator 23 during long-distance running of the truck 1 1, etc., the excess electricity is stored in the battery 3 3 and sold to, for example, a gas station power station. Is also good.

• Vehicles to which the vehicle wind turbines 23 are mounted are not limited to trucks 11.

The air guide plate 21 may be formed in a flat shape without being curved.

• The number of rotor blades is not limited to two or six, but may be three, four, five, or eight, for example.

Claims

The scope of the claims

1. A wind power generator for a vehicle installed on a cabin roof (15) of a vehicle, wherein the vehicle includes a packing box (12) having an upper surface (14) higher than the cabin roof. Is

A baffle plate (2 1) provided on the cabin roof to reduce air resistance of the vehicle;

A windmill (22) provided on the cabin roof and between the wind guide plate and the packing box, and having a rotor (26) and a generator (30) that generates power as the rotor rotates. With

The rotor is arranged so as to extend in the vehicle width direction of the vehicle, and has a plurality of blades (29) arranged on the surface thereof.

When the vehicle travels, the rotor is rotated by the plurality of blades (29) receiving air flowing along the air guide plate.

2. The vehicle wind power generator according to claim 1,

The generator is disposed inside the rotor.

3. The wind power generator for a vehicle according to claim 1 or 2, further comprises:

A drive means (51) for changing the inclination of the air guide plate is provided.

4. The vehicle wind power generator according to claim 3,

The driving means includes a cylinder.

5. The wind power generator for a vehicle according to any one of claims 1 to 4, wherein each of the plurality of blades is curved along a rotation direction of the windmill.

6. The wind power generator for a vehicle according to any one of claims 1 to 4, Each of the plurality of blades is curved along a direction opposite to a rotation direction of the windmill.

7. The wind turbine generator for a vehicle according to any one of claims 1 to 6, wherein the rotor is provided between a tip end of one adjacent blade and a base end of the other blade. Including a plurality of auxiliary members 44 for reducing air resistance.

8. The wind turbine generator according to any one of claims 1 to 7, wherein the wind turbine is one of a plurality of wind turbines provided in series in a vehicle width direction.

9. A vehicle having a wind power generator,

Cabin roof (15)

A cargo box (1 2) having an upper surface (14) higher than the cabin roof, and a wind power generator (23) installed on the cabin roof;

With

The wind power generator,

A baffle plate (21) provided on the cabin roof to reduce air resistance of the vehicle;

A wind turbine (22) provided on the cabin roof and between the wind guide plate and the packing box, and having a rotor (26) and a generator (30) that generates power as the rotor rotates. Including

The rotor is arranged to extend in the vehicle width direction of the vehicle, and has a plurality of blades (29) arranged on a surface thereof.

When the vehicle runs, the rotor rotates by receiving air flowing along the air guide plate from the plurality of blades (29).

10. The vehicle according to claim 9, further comprising:

A driving means (51) for changing the inclination of the air guide plate is provided.

1 1. A method for generating electricity by a wind turbine generator provided in a vehicle, the vehicle comprising: a cabin roof (15); and a packing box (12) having a top surface (14) higher than the cabin roof. The wind power generator includes a wind guide plate (21) for reducing the air resistance of a vehicle, a rotor (26), and a generator (3) for generating power as the rotor rotates.

0), and the rotor (26) is disposed so as to extend in the vehicle width direction of the vehicle, and has a plurality of blades (29) disposed on the surface thereof. The power generation method is

Disposing the wind guide plate on a cabin roof (15) of the vehicle; and disposing the wind turbine on the cabin roof between the wind guide plate and the packing box. When,

Driving the vehicle;

Rotating the rotor by receiving air flowing along the air guide plate by the plurality of blades;

Is provided.

1 2. The power generation method according to claim 11 further includes:

A step of changing the inclination of the baffle plate.

1 3. The power generation method described in claim 11 or 12

A step of storing electricity generated by the power generation step in a battery