JP2003009487A - Outer rotor type magnetogenerator with regulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an outer rotor type magnetogenerator with a regulator, which can enhance heat radiation characteristics of the regulator. SOLUTION: Vent holes 11a and 11b are provided in a stator mounting plate 10 and a rotor yoke 4 of a rotor 6 so that cooling air can pass through the inside of a cylindrical part 4a of the rotor yoke 4. The regulator 16 for regulating generated output from a power generating coil 2 is provided on the side of the plate 10. The regulator 16 is provided with not only a ventilation passage 29 which passes between radiating fins 28 and leads to the vent hole 11a of the plate 10 but also a ventilation passage 32 which crosses a surface 18a of a molded resin 18 and leads to the vent hole 11a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer rotor type magnet generator with a regulator.

[0002]

2. Description of the Related Art FIGS. 4A and 4B to FIG.
Fig. 4 shows a configuration of a conventional outer rotor type magnet generator with a regulator shown in No. 224821.
(A) and (B) are a longitudinal sectional view and a bottom view of the outer rotor type magnet generator with the regulator, FIG. 5 is a front view of the regulator used in the magnet generator, and FIG. 6 is used in the magnet generator. It is a bottom view of the state which attached the regulator which is attached to the stator attachment plate.

This outer rotor type magneto-generator with a regulator includes salient poles 1a on the outer circumference of an annular stator core 1.
A stator 3 having a magneto coil 2 wound around it, and the stator 3
The outer periphery of the rotor yoke 4 is surrounded by the tubular portion 4a of the rotor yoke 4, and the inner periphery of the tubular portion 4a supports the permanent magnets 5, and the tubular boss 7 that fixes the annular stator core 1 to the outer periphery of the rotor 6.
A rotary shaft 9 attached to the center of the bottom portion 4b of the rotor yoke 4 and rotatably passing through the inner circumference of the boss 7 via a plurality of bearings 8; and a direction orthogonal to the rotary shaft 9 on the open end side of the rotor yoke 4. In addition, the cooling air passes through the stator mounting plate 10 which is rotatably pierced through the rotary shaft 9 and integrally provided at the end of the boss 7 and the tubular portion 4a of the rotor yoke 4 in the direction of the rotary shaft 9. A plurality of ventilation openings 11a and 11b are provided in the stator mounting plate 10 and the rotor yoke 4 at predetermined intervals in the circumferential direction, and cooling air passes through the cylindrical portion 4a of the rotor yoke 4 through the ventilation openings 11a and 11b. A fan 13 provided with a plurality of blades 12 fixed to the inner peripheral portion of the rotor yoke 4, and a rotary shaft 9 of a bolt structure protruding outward from the bottom portion 4b side of the rotor yoke 4. The pulley 14 fixed by utilizing the head portion 9a thereof and the stator mounting plate 10 side are mounted via a regulator holder 15 made of metal such as aluminum to adjust the power generation output from the power generation coil 2 and not shown. It has a structure including a regulator 16 for charging a battery.

The stator core 1 is fixed to the stator mounting plate 10 with screws (not shown). Each bearing 8
Are positioned on the outer circumference of the rotary shaft 9 by a plurality of collars 22. The tip of the rotary shaft 9 having a bolt structure projects into the recess 23 of the stator mounting plate 10, and the flat washer 2
4, Hexagon nut 26 is fastened to the base end of boss 9 via spring washer 25. The stator mounting plate 10 includes a tubular portion 10a that surrounds the outer circumference of the tubular portion 4a of the rotor yoke 4, a bottom portion 10b that closes one end of the tubular portion 10a on the opening side of the tubular portion 4a of the rotor yoke 4, and an outer circumference of the tubular portion 10a. The bottom flange 10b has a plurality of ventilation holes 11a on one side and is radially provided at predetermined intervals in the circumferential direction. These ventilation openings 11a are provided with a plurality of ribs 2 provided on the bottom portion 10b.
The slits are formed between the slits 7. The other ventilation ports 11b are provided at the ends of the cylindrical portion 4a of the rotor yoke 4 near the bottom portion 10b.

In this magnet generator, a plurality of ribs _27a1 and a plurality of ventilation holes _11a1 are provided in parallel at the center of the bottom portion 10b of the stator mounting plate 10, and these ribs 2a1 are provided.
7 _{a 1} and the ventilation openings 11 _a1 are provided on one of both sides where the ribs 27 _{a 1} and the ventilation openings 11 _a1 are orthogonal to the ribs 27 _a2 and the ventilation openings 11 _{a1. a2} is provided in parallel. That is, the ventilation port 11
a is a ventilation port 11 _a1 and a ventilation port 11 in this magnet generator.
_{and a2} . The rib 27 is composed of a rib 27 _a1 and a rib 27 _a2 in this magnet generator.

In the regulator 16, the regulator body 17 is housed in the recess 15a of the regulator holder 15 and is molded with resin 18, and a plurality of heat radiation fins 28 are provided on the surface of the regulator holder 15 opposite to the recess 15a. A plurality of ventilation passages 29 are formed between the radiation fins 28 for feeding cooling air to the ventilation holes _11a2 of the stator mounting plate 10, and mounting flanges 30 are provided on the side surfaces parallel to the radiation fins 28 so as to project therefrom. It has a different structure. Such a regulator 16 has a structure in which the recess 15a of the regulator holder 15 is directed toward the stator mounting plate 10 side.
It is fixed to the bottom portion 10b of the base with a screw 19 penetrating the mounting collar 30. The regulator holder 15 is covered and fixed with a cover 31 that covers each of the radiation fins 28 that face outward.

A plurality of input terminals 20 for inputting the output of the generator coil 2 to the regulator 16 and a plurality of output cords 2 for outputting the output from the regulator 16 are provided.
1 and are provided.

Outer rotor type with such regulator
As the rotor yoke 4 rotates, the magnet generator is driven by the fan 1
Rotate each blade 12 of 3 and rotate these blades 12
The stator mounting plate 10
Each provided 11_a1, 11 _a2Inhale outside air from
The outside air is introduced into the cylindrical portion 4a of the rotor yoke 4 by the rotating shaft 9
Through the gaps between the salient poles 1a along the
And the permanent magnet 5 are cooled and passed through the inside of the cylinder portion 4a.
Exhaust gas is discharged from the end of the cylindrical portion 4a near the bottom portion 10b of the rotor yoke 4.
The air is discharged to the outside from each ventilation port 11b at the end.

The regulator 16 is directly cooled by the cooling air passing through the ventilation passage 29 between the plurality of radiation fins 28 formed in the regulator holder 15, so that the regulator 15 can be efficiently cooled. .
In this case, the regulator holder 15 is covered with the cover 31 that covers the heat radiation fins 28. Therefore, even if the heat radiation fins 28 are open outward, the cover 31 covers the ventilation holes between the heat radiation fins 28. The periphery of the passage 29 is closed to allow cooling air to flow along the surface of the regulator holder 15 through the ventilation holes 11 _a2 of the stator mounting plate 10.
Can be reliably sent to. Since the cooling air for cooling the regulator 16 is the cooling air before cooling the stator 3 and the like, the temperature does not rise and the regulator can be cooled well.

[0010]

However, in the above-described outer rotor type magneto-generator with regulator, the heat generated by the regulator 15 is generated by the internal resistance of these elements due to the current flowing through the built-in diode or thyristor. In the above-described structure, the heat generated by the diode or thyristor is not directly cooled, but is cooled through the radiation fins 28 of the regulator holder 15, and there is a problem that the cooling efficiency is not good.

An object of the present invention is to provide an outer rotor type magnet generator with a regulator which can further improve the heat radiation characteristics of the regulator.

[0012]

SUMMARY OF THE INVENTION According to the present invention, a stator in which a generator coil is wound around an annular stator core, and a cylindrical portion of a rotor yoke surrounds the outer circumference of the stator, and a permanent magnet is provided on the inner circumference of the cylindrical portion. A supported rotor, a tubular boss that fixes an annular stator core to the outer periphery, a rotary shaft that is attached to the center of the bottom of the rotor yoke and rotatably penetrates the inner periphery of the boss via a bearing, A stator mounting plate that is integrally provided at the end of the boss and is rotatably pierced through the rotating shaft on the opening end side of the rotor yoke, and is cooled in the direction of the rotating shaft in the cylindrical portion of the rotor yoke. The ventilation holes are provided in the stator mounting plate and the rotor yoke so that the wind can pass through, and the rotor yaw can be cooled so that the cooling air passes through the inside of the cylindrical portion of the rotor yoke through the ventilation holes. Side is provided with a fan, and a regulator provided on the side of the stator mounting plate for adjusting the power generation output from the power generation coil. An outer rotor type magnet generator with a regulator in which a plurality of heat radiation fins are formed on the surface opposite to the heat radiation fins and a plurality of ventilation passages for feeding cooling air to the ventilation holes of the stator mounting plate are formed between these heat radiation fins. It is related.

In the outer rotor type magneto-generator with regulator according to the present invention, the regulator has a ventilation passage extending between the radiating fins to the ventilation opening of the stator mounting plate, and the stator across the surface of the molded resin. A ventilation passage is provided to reach the ventilation opening of the mounting plate.

When the ventilation passages are provided on both sides of the regulator in this manner, the regulator is cooled from both sides by the air passing through these ventilation passages, and the heat dissipation characteristics of the regulator can be further improved. Therefore, it is possible to obtain a small-sized outer rotor type magneto-generator with a regulator capable of achieving high output.

In this case, in the regulator, the surface of the molded resin faces the stator mounting plate and a ventilation passage is provided between the two, and each of the outward radiating fins is covered with a cover to cover them. Even in the structure in which the passages are provided, ventilation holes are provided between the radiation fins so as to face the stator mounting plate, the ventilation passages are provided between the radiation fins, and the outer surface of the resin is covered with the cover to cover the surface of the resin. And a structure in which a ventilation passage is provided between the cover and
Either is fine.

[0016]

1 (A) (B) to FIG. 3 show an example of an embodiment of an outer rotor type magnet generator with a regulator according to the present invention. ) Is a vertical sectional view and a bottom view of the outer rotor type magnet generator with a regulator of this example, FIG. 2 is a front view of the regulator used in this example, and FIG. 3 is a regulator mounting plate in which the regulator used in this example is used. It is a bottom view of the state where it was attached. The parts corresponding to those in FIGS. 4A and 4B described above are designated by the same reference numerals.

In the outer rotor type magneto-generator with a regulator of this example, the regulator 16 has a radiation fin 28.
Ventilation port 11 of stator mounting plate 10
_In addition to the ventilation passage 29 leading to _a2 , the molded resin 1
Air passage 32 leading to the vent _{11 a2} of the stator mounting plate 10 is provided across the face 18a of the 8.
The regulator 16 is a molded resin 18 in this example.
Surface 18a faces the stator mounting plate 10, and a ventilation passage 32 is provided between them, and each of the outward heat radiation fins 28 is covered with a cover 31 to provide a ventilation passage 29. Has become.

When the ventilation passages 29 and 32 are provided on both sides of the regulator 16 in this manner, the regulator 16
Is cooled from both sides by the wind passing through these ventilation passages 29 and 32, and the heat dissipation characteristics of the regulator 16 can be further improved. Therefore, it is possible to obtain a small-sized outer rotor type magneto-generator with a regulator capable of achieving high output.

The outer rotor type magneto-generator with regulator of the present invention is not limited to such a structure, and each radiating fin 28 faces the stator mounting plate 10 so that ventilation is provided between the radiating fins 28. A passage 29 is provided, and a cover 31 is covered so as to cover the outwardly facing surface 18 a of the resin 18 and the surface 18 a of the resin 18 and the cover 3
Even in the structure in which the ventilation passage 32 is provided between the first and second parts, the same effect as that of the above-described example can be obtained.

[0020]

In the outer rotor type magnet generator with regulator according to the present invention, since the ventilation passages are provided on both sides of the regulator, the regulator is cooled from both sides by the air passing through these ventilation passages, and the heat radiation of the regulator is reduced. The characteristics can be further improved. Therefore, it is possible to obtain a small-sized outer rotor type magneto-generator with a regulator capable of achieving high output.

[Brief description of drawings]

1A and 1B are a longitudinal sectional view and a bottom view showing an example of an embodiment of an outer rotor type magneto-generator with a regulator according to the present invention.

FIG. 2 is a front view of a regulator used in this example.

FIG. 3 is a bottom view of a state where the regulator used in this example is attached to a stator attachment plate.

4A and 4B are a vertical sectional view and a bottom view showing the configuration of a conventional outer rotor type magneto-generator with a regulator.

FIG. 5 is a front view of a regulator used in this magnet generator.

FIG. 6 is a bottom view of a state where the regulator used in this magnet generator is attached to the stator attachment plate.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 stator core 1a salient pole 2 generator coil 3 stator 4 rotor yoke 4a cylinder part 4b bottom part 5 permanent magnet 6 rotor 7 boss 8 bearing 9 rotating shaft 9a head part 10 stator mounting plate 10a cylinder part 10b bottom part 10c mounting flange parts 11a, 11b ventilation holes 11 _a1 , 11 _a2 Vent 12 Blade 13 Fan 14 Pulley 15 Regulator holder 15a Recess 16 Regulator 17 Regulator body 18 Resin 18a Surface 19 Screw 20 Input terminal 21 Output cord 22 Color 23 Recess 24 Flat washer 25 Spring washer 26 Hexagon nut 27 Rib 27 _a1 , 27 _a2 Rib 28 Radiating fin 29 Ventilation passage 30 Mounting collar 31 Cover 32 Ventilation passage

Continued front page    (72) Inventor Hidetoshi Suzuki             3744 Ooka, Numazu City, Shizuoka Prefecture             In the company (72) Inventor Hiroshi Yamaguchi             3744 Ooka, Numazu City, Shizuoka Prefecture             In the company F-term (reference) 5H609 BB05 PP02 PP06 PP07 QQ02                       QQ12 QQ16 RR16 RR27 RR35                       RR43 RR63 RR73                 5H621 BB07 GA01 GA04 HH01 JK07                       JK11 JK13 JK14

Claims (3)

[Claims] 1. A stator in which a generator coil is wound around an annular stator core, a rotor in which a cylindrical portion of a rotor yoke surrounds the outer periphery of the stator, and a permanent magnet is supported on the inner periphery of the cylindrical portion, and the annular portion. A cylindrical boss that fixes the stator core to the outer periphery, a rotary shaft that is attached to the center of the bottom of the rotor yoke and rotatably penetrates the inner periphery of the boss via a bearing, and the open end side of the rotor yoke. And a stator mounting plate integrally provided at an end portion of the boss in a direction orthogonal to the rotation axis and rotatably penetrating the rotation axis, and cooling in a direction of the rotation axis in a cylindrical portion of the rotor yoke. Ventilation openings provided in the stator mounting plate and the rotor yoke so that the air can pass through, and the cooling air flows in the cylindrical portion of the rotor yoke through the ventilation openings. A fan provided on the rotor yoke side so as to pass through, and a regulator provided on the stator mounting plate side for adjusting the power generation output from the power generation coil, the regulator has a regulator main body incorporated in a recess of a regulator holder. And molded with resin, a plurality of radiating fins are formed on the surface opposite to the concave portion, and a plurality of ventilation passages for sending cooling air to the ventilation holes of the stator mounting plate are formed between these radiating fins. In the outer rotor type magneto-generator with a regulator, the regulator includes a ventilation passage that extends between the heat dissipating fins and reaches the ventilation port of the stator mounting plate, and the regulator that crosses the surface of the molded resin. A ventilation passage is installed to reach the ventilation holes on the stator mounting plate. Outer rotor type magnet generator with regulator. 2. In the regulator, a surface of the molded resin is opposed to the stator mounting plate, the ventilation passage is provided between the two, and each of the outward radiating fins is provided with a cover that covers them. The regulator-equipped outer rotor type magneto-generator according to claim 1, wherein the ventilation passage is provided so as to be covered therewith. 3. In the regulator, each of the heat radiation fins faces the stator mounting plate, the ventilation passage is provided between the heat radiation fins, and a cover is covered to cover an outward surface of the resin. The outer rotor type magnet generator with a regulator according to claim 1, wherein the ventilation passage is provided between the surface of the resin and the cover.