JP3043709U - Speed-up hub generator - Google Patents

Abstract

(57) [Abstract] [Problem] To provide a speed-increasing hub generator. A hub generator including a fixed unit and a rotor portion, and a speed increasing mechanism mounted in the hub are included, and the hub generator is a power generator installed in the hub. ,
Alternatively, the power generator is mounted outside the hub, which includes a fixing unit, is fixed on a shaft of a wheel, and includes a casing of the hub generator and a stator portion fixed to an inner wall of the casing. The rotor part is a rotating part of the hub generator, is fixed on a shaft provided in the case of the fixed unit, and is driven and rotated by the speed increasing mechanism.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a type of speed-up type hub generator, and more particularly to a type of power generator installed on a hub and a shaft of a motorcycle.

[0002]

[Prior art]

 Known hub generators for motorcycles have different installation positions such as the outer surface of the hub or the inside of the hub, but the drive method is to drive the rotor part of the generator synchronously with the hub. The stator part of the generator and the shaft of the hub are fixed, and the available space adjacent to the hub is finite, and the amount of generated energy cannot be significantly improved. Since it affects the effective efficiency of electric appliances used, such as lighting and trumpets, it indirectly affected driving safety.

In terms of the principle of the generator, the induced voltage generated by the generator is directly proportional to the magnetic field strength of the generator and the rotation speed of the rotor. Therefore, in order to increase the amount of energy generated by the hub generator, there are obviously two methods: increasing the magnetic field strength and increasing the rotation speed of the rotor. However, the volume of the rotor of the hub generator is finite, and the strength of the magnet is also limited to it, so if we try to increase the amount of energy generated by the generator, we will improve the magnetic field strength of the hub generator. However, in reality, the effect was limited.

[0004]

[Problems to be solved by the device]

 The present invention has been made in order to solve the above-mentioned problem of insufficient energy generation of the hub generator. In the present invention, it is possible to effectively increase the rotation speed of the rotor by using one speed increasing device. In order to solve the well-known phenomenon of insufficient energy generation of hub generators, the amount of energy generated by hub generators is doubled.

Specifically, the present invention provides a kind of speed-up type hub generator so that the electric power of the vehicle in which it is installed can obtain its required electric power under the rotation of wheels. It is.

Another object of the present invention is to provide a kind of speed-up type hub generator, which is used to improve the power generation efficiency of the hub generator, and which has a gear ratio design of the speed-up mechanism. The rotational speed output by the speed increasing mechanism is set to several times the rotational speed of the hub, and the rotational speed of the rotor of the hub generator is effectively increased to increase the amount of energy generated.

Still another object of the present invention is to provide a kind of speed-up type hub generator so that a relatively large amount of electric power can be provided to the electric appliance of the vehicle, and the function of the electric appliance can be effectively utilized. And to provide sufficient power application space so that various kinds of electric appliances can be equipped.

[0008]

[Means for Solving the Problems]

 The invention of claim 1 is a type of speed-increasing hub generator used to provide a power source for an electric machine used in a vehicle, which is one in-hub generator 20 including: Provided in the hub of a wheel, having a shaft 2 of the wheel as its central axis, and having one fixed unit and one rotor portion, the fixed unit being fixed on the shaft 2 and having a cylindrical shape. Case 22, a case cover 23 that includes a central through hole to form a casing of the in-hub generator 20 in combination with the case 22, a bush 21 that fixes the case 22 on the shaft 2, and a case 21 that is fixed in the case. A rotor part, which is connected to the shaft 2 and is located in the case of the fixed unit, and which is suitable between the rotor part and the stator part of the above-mentioned fixed unit. A gap is provided, and the gap is The in-hub generator 20 and the speed-increasing mechanism 30 are provided in the hub 1 so that all the sizing elements are provided within the magnetic field lines of the in-hub generator. In the hub, the speed increasing gear train is provided outside the case cover 23 of the generator 20, and includes one gear shaft seat 31, one main drive gear 32, one hollow connecting shaft 351, and a plurality of driven gears. A pair of gears, and one final transmission gear 35, the gear shaft seat 31 is vertically fixed on the shaft 2 and is separated from the case cover 23 of the in-hub generator 20 by an appropriate distance, and the main drive gear 32 is provided. Is fixed to the inner wall of the hub 1 between the case cover 23 and the gear shaft seat 31, the final transmission gear 35 is provided on the shaft 2 between the case cover 23 and the gear shaft seat 31, and the main drive gear 32 and the final transmission gear 35 are provided. Installed between 35 The driven gear shafts of the plurality of driven gear pairs are spanned between the gear shaft seat 31 and the case cover 23, the main drive gear 32 is interlocked with the hub, and the speed is changed by the plurality of driven gear pairs. Finally, the rotor connecting with the final transmission gear 35 is interlocked by the hollow connecting shaft passing through the center through hole of the case cover 23 at a higher rotation speed than the hub obtained by the final transmission gear 35. The speed-increasing mechanism 30 is configured as described above, and the speed-increasing hub generator includes the above-described configuration.

The invention of claim 2 provides the speed-increasing hub generator according to claim 1, wherein the main drive gear 32 is an internal gear fixed to an inner wall of the hub.

The invention of claim 3 provides the speed-increasing hub generator according to claim 1, wherein the speed-increasing mechanism 30 is a speed-increasing friction wheel train.

The invention of claim 4 is a type of speed-increasing hub generator used to provide a power source for an electric appliance used in a vehicle, including one of the following: 40, which is provided outside the hub of the wheel, has a shaft 2 of the wheel as its central axis, includes one fixed unit and one rotor portion, and the fixed unit is fixed on the shaft 2. 41 and a stator part fixed in the casing 41, the rotor part being provided around the shaft 2 and located in the casing 41 of the stationary unit, between the rotor part and the stator part. A gap between the rotor and the stator, the rotor and the stator both being within the magnetic field lines of the generator 40 outside the hub. The speed increasing mechanism 30 is provided in the hub 1. One gear shaft seat 31, one gear shaft support seat 36, one hollow connecting shaft, one main drive gear 32, a plurality of driven gear pairs, and one final transmission gear 35. At least one horizontal bar, wherein the gear shaft support sheet 36 is vertically provided on the hollow connecting shaft and is spaced at an appropriate distance so as to face the gear shaft seat 31. 361 is connected to the gear shaft seat 31 to be in a fixed state, the speed increasing gear train is provided between the gear shaft seat 31 and the gear shaft support seat 36, and the main drive gear 32 is provided on the inner wall of the hub 1. A fixed final transmission gear 35 is rotatably provided around the shaft 2, and driven gear shafts of a plurality of driven gear pairs provided between the main drive gear 32 and the final transmission gear 35 are gear shaft sheets. Between 31 and the gear shaft support sheet 36 The main drive gear 32 is interlocked with the hub 1, speed conversion is performed by the plurality of driven gear pairs, and finally the final transmission gear 35 is made to obtain a rotation speed higher than the rotation speed of the hub 1. The rotor portion of the outside hub generator 40, which is connected to the final transmission gear 35 by the hollow connecting shaft that penetrates the shaft supporting sheet 36 and the wall of the hub 1, is connected to the rotor via the hollow connecting shaft. The speed-increasing mechanism includes the speed-increasing mechanism 30 and the speed-increasing hub-generator having the above-described structure.

The invention of claim 5 provides the speed-increasing hub generator according to claim 4, wherein the main drive gear 32 is an internal gear fixed to the inner wall of the hub.

The invention of claim 6 provides the speed-increasing hub generator according to claim 4, wherein the speed-increasing mechanism 30 is a speed-increasing friction wheel train.

[0014]

[Embodiment of the invention]

 The speed-increasing hub generator of the present invention is installed on a hub and shaft of a wheel having wheel ribs to provide electric power for electric appliances used by a vehicle, and includes a fixed unit and a rotor section. It also includes a hub generator and a speed-up mechanism installed in the hub.

The hub generator is a power generator installed inside the hub or a power generator installed outside the hub. It contains a fixed unit, which is fixed on the shaft of the wheel and also contains the casing of the hub generator and the stator part fixed to the inner wall of the casing. The rotor part is a rotating part of the hub generator, is fixed on a shaft provided in the case of the fixed unit, and is driven and rotated by the speed increasing mechanism.

The speed-increasing mechanism is one speed-increasing gear train, the input gear thereof is a main drive gear fixed to the inner wall of the hub, and the rotational speed is converted by a plurality of driven gear pairs. The transmission gear outputs a rotation speed higher than the hub rotation speed, and one hollow connecting shaft drives the rotor part of the hub generator.

[0017]

【Example】

 FIG. 1 is a cross-sectional view of a first embodiment of a speed increasing type hub generator according to the present invention. In the speed-increasing hub generator of the first embodiment, a power generator is provided in a wheel hub 1 as shown in the figure, and in addition, a wheel shaft 2 is used as its central axis, and one fixed unit and one The in-hub generator 20 including the first rotor unit 25 and one speed increasing mechanism 30 are included.

The fixed unit of the in-hub generator 20 is fixed on the shaft 2, and is combined with one cylindrical case 22 and the case 22 including a central through hole to form a casing of the in-hub generator 20. It includes a case cover 23 to be formed, a bush 21 for fixing the case 22 on the shaft 2, and a first stator portion 24 fixed in the casing of the in-hub generator 20.

The first rotor portion 25 of the in-hub generator 20 is connected to the shaft 2 by one first bearing 26 and one second bearing 27, and is located in the casing of the in-hub generator 20. An appropriate gap is provided between the first rotor portion 25 and the first stator portion 24 of the above-mentioned fixed unit, and the gap is such that the first rotor portion 25 and the first stator portion 24 are not in contact with each other. Either of them is provided so as to be within the magnetic field line range of the in-hub generator 20.

The speed increasing mechanism 30 is a speed increasing gear train provided outside the case cover 23 of the in-hub generator 20 provided in the hub 1, and includes one gear shaft seat 31 and one main shaft. The drive gear 32, one hollow first connecting shaft 351, a plurality of driven gear pairs, and one final transmission gear 35 are included.

The gear shaft sheet 31 is vertically fixed on the shaft 2 and is separated from the case cover 23 of the in-hub generator 20 by an appropriate distance, which is an appropriate distance from the gear train of the reduction mechanism 30. The distance is set between the gear 23 and the gear shaft seat 31.

The main drive gear 32 is fixed to the inner wall of the hub 1 between the case cover 23 and the gear shaft seat 31, and is in an interlocking state with the hub 1. In the first embodiment of the present invention, the main drive gear 32 is provided. The gear 32 is an internal gear fixed to the inner wall of the hub 1.

The final transmission gear 35 is provided on the shaft 2 between the case cover 23 and the gear shaft seat 31, and is provided on one side of the final transmission gear 35 close to the case cover 23 and is hollow coaxial with the final transmission gear 35. First connecting shaft 351 is connected, and the first connecting shaft 351 uses the shaft 2 as a pivot shaft and passes through the center through hole of the case cover 23 to enter into the casing of the in-hub generator 20. The final transmission gear 35 outside the casing of the in-hub generator 20 and the first rotor portion 25 inside the casing of the in-hub generator 20 are fixed to the portion 25 and are linked together.

The plurality of driven gear pairs are provided between the main drive gear 32 and the final transmission gear 35, and the driven gear shafts of the respective driven gears are bearings and the gear shaft seat 31 and the case cover of the in-hub generator 20. 23, the rotation speed of the main drive gear 32 is converted to a relatively high speed by the plurality of driven gear pairs, and the final transmission gear 35 further transfers this relatively high rotation speed from the first connecting shaft 351. Output to the first rotor part 25 in the casing of the in-hub generator 20.

In the first embodiment, the plurality of driven gear pairs is a driven gear train including a first driven gear pair and a second driven gear pair.

The first driven gear pair is composed of a first gear 331 and a second gear 332 on a first gear shaft 33, the first gear shaft 33 being parallel to the shaft 2 and having bearings at both ends thereof. The shaft sheet 31 and the case cover 23 of the in-hub generator 20 are laid across, and the first gear 331 meshes with the main drive gear 32 described above, and the radius of the main drive gear 32 is larger than the inner diameter of the first gear 331. Larger, which causes the rotational speed of the first gear 331 to be higher than the rotational speed of the main drive gear 32 with which it meshes, while the second gear 332 is fixed on the first gear shaft 33, like the first gear 331. Therefore, the rotation speed is the same as that of the first gear 331.

The second driven gear pair is composed of a third gear 341 and a fourth gear 342 provided on the second gear shaft 34, and the second gear shaft 34 is also parallel to the shaft 2 and is provided at both ends. A bearing extends over the gear shaft sheet 31 and the case cover 23 of the in-hub generator 20, the third gear 341 meshes with the second gear 332 of the first driven gear pair, and the fourth gear 342 is described above. Since the third gear 341 meshes with the final transmission gear 35 of the above, and the third gear 341 is fixed to the second gear shaft 34 like the fourth gear 342, the rotation speeds of both are the same.

When the first embodiment of the speed-increasing hub generator of the present invention described above is in operation, the rotation speed of the hub 1 of the wheel is input to the speed-increasing mechanism 30 from the main drive gear 32 and the original input rotation is performed. The rotation speed is set higher than the speed, and further the final transmission gear 35 is passed, and the first rotor portion 25 of the in-hub generator 20 is driven through the first connecting shaft 351 to rotate the first rotor portion 25. , And the magnetic field lines formed by the first stator portion 24 fixed on the shaft 2 achieve the power generation effect of the speed-increasing hub generator.

FIG. 2 is a cross-sectional view of a second embodiment of the speed-increasing hub generator of the present invention. For the sake of consistency in description, similar or same parts are designated by the same reference numerals. is there. In the speed-increasing hub generator of the second embodiment, a generator having a wheel shaft 2 as its central axis is provided outside the wheel hub 1 as shown in the figure, which includes one fixed unit and one second rotor. It includes an out-of-hub generator 40 including a portion 43, and one speed increasing mechanism 30.

The fixed unit of the out-of-hub generator 40 includes a casing 41 fixed on the shaft 2 and a second stator portion 42 fixed in the casing 41. The second rotor portion 43 is provided on the shaft 2 and is located in the casing 41 of the fixed unit, and an appropriate gap is provided between the second rotor portion 43 and the second stator portion 42. The gap is provided so that the second rotor portion 43 and the second stator portion 42 are both in a non-contact state and within the magnetic field lines of the outside-hub generator 40.

The speed increasing mechanism 30 of the outside-hub generator 40 is provided in the hub 1 and includes one gear shaft sheet 31, one gear shaft support sheet 36, and one hollow second connecting shaft. 352, one main drive gear 32, a plurality of driven gear pairs, and one final transmission gear 35. Among them, the correlation position of the arrangement of each component other than the gear shaft support sheet 36 and the second connecting shaft 352 is the same as that of the first embodiment of the present invention described above.

In the second embodiment, the power generator combined with the speed increasing mechanism 30 is the outside-hub generator 40 provided outside the hub 1, and therefore is combined with the gear shaft seat 31 in the first embodiment. There is no case cover 23 of the in-hub generator 20 that supports the driven gear shafts of the plurality of driven gear pairs. Therefore, in the second embodiment of the present invention, the shaft 2 is used as a pivot and the second connecting shaft 352 longer than the first connecting shaft 351 of the first embodiment is used, and the second connecting shaft 352 is used as the outside hub generator 40. Is connected to the second rotor portion 43 in the casing 41 of the outside-hub generator 40, and one bearing is provided between the second connecting shaft 352 and the hub wall. The rotation of the two is separated from each other, and the second embodiment achieves the function of supporting the driven gear shaft by replacing the gear shaft support sheet 36 with the case cover 23 of the first embodiment.

The gear shaft support sheet 36 is vertically connected to the hollow second connecting shaft 352, and an appropriate distance is provided between the gear shaft support sheet 36 and the gear shaft seat 31, and the gear shaft support sheet 36 is opposed to the gear shaft support sheet 352. The appropriate distance is sufficient for the gear train of the speed increasing mechanism 30 to be installed between the gear shaft support sheet 36 and the gear shaft seat 31, and at least one horizontal bar 361 is attached to the gear shaft seat. The driven gear shafts of the plurality of driven gear pairs are fixed to 31 and interlocked between the gear shaft seat 31 and the gear shaft support seat 36 by bearings at both ends.

During operation of the second embodiment of the speed-increasing hub generator of the present invention described above, the rotational speed of the hub 1 of the wheel is input to the speed-increasing mechanism 30 from the main drive gear 32, and the original input rotation is performed. After the rotational speed becomes higher than the speed, the second rotor portion 43 of the outside-hub generator 40 outside the hub 1 is driven via the second connecting shaft that penetrates the hub 1 from the final transmission gear 35, and the second rotor The rotation of the portion 43 and the division of the magnetic lines of force formed by the second stator portion 42 achieve the power generation effect of the speed-increasing hub generator.

The speed increasing mechanism 30 of the present invention may obviously be a single speed increasing friction wheel train instead of the speed increasing gear train, and the arrangement relationship between each friction wheel and each friction wheel shaft therein is as described above. The arrangement relationship of each gear and each gear shaft of the first and second embodiments is the same.

[0036]

[Effect of the invention]

 The speed-increasing hub generator of the present invention doubles the amount of energy generated by the hub generator by effectively increasing the rotation speed of the rotor by using one speed increasing device, and the power generation of the known hub generator. The phenomenon of energy shortage occurred.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a first embodiment of a speed-increasing hub generator according to the present invention.

FIG. 2 is a cross-sectional view of a second embodiment of the speed increasing hub generator according to the present invention.

[Explanation of symbols]

 1 Hub 2 Shaft 20 In-Hub Generator 21 Bush 22 Case 23 Case Cover 24 First Stator Part 25 First Rotor Part 26 First Bearing 27 Second Bearing 30 Speed-up Mechanism 31 Gear Shaft Seat 32 Main Drive Gear 33 Third 1 gear shaft 34 2nd gear shaft 35 final transmission gear 36 gear shaft support sheet 40 outside hub generator 41 casing 42 second stator part 43 second rotor part 331 first gear 332 second gear 341 third gear 342 second 4 gears 351 first connecting shaft 352 second connecting shaft 361 horizontal bar

Claims (6)

[Utility model registration claims] 1. A type of speed-increasing hub generator used to provide a power source for electric equipment used in a vehicle, including one in-hub generator 20 including: Provided in the hub, having the shaft 2 of the wheel as its central axis, and having one fixed unit and one rotor portion, the fixed unit is fixed on the shaft 2, and has one cylindrical case 22; A case cover 23 that includes a central through hole to form a casing of the in-hub generator 20 in combination with the case 22, a bush 21 that fixes the case 22 on the shaft 2, and a stator portion that is fixed in the case. The rotor part is connected to the shaft 2 and is located in the case of the fixed unit, and an appropriate gap is provided between the rotor part and the stator part of the above-mentioned fixed unit. , The rotor part and the stator part Shift also provided so as to be within the magnetic field lines the range of hub dynamo, and the hub generator 20, to be one of the speed increasing mechanism 30, bulking speed mechanism 30, the hub 1
It is a speed-increasing gear train provided outside the case cover 23 of the in-hub generator 20 provided inside, and includes one gear shaft seat 31, one main drive gear 32, and one hollow connecting shaft 3.
51, a plurality of driven gear pairs, and one final transmission gear 35
The gear shaft sheet 31 is vertically fixed on the shaft 2 and is separated from the case cover 23 of the in-hub generator 20 by an appropriate distance.
3 and the gear shaft seat 31 are fixed to the inner wall of the hub 1, and the final transmission gear 35 includes the case cover 23 and the gear shaft seat 3
The driven gear shafts of a plurality of driven gear pairs provided on the shaft 2 between the main drive gears 32 and the final transmission gears 35 are laid across the gear shaft seat 31 and the case cover 23. The drive gear 32 is interlocked with the hub, undergoes speed conversion by a plurality of driven gear pairs, and finally the final transmission gear 35.
The speed-increasing mechanism is adapted to interlock the rotor portion connected to the final transmission gear 35 by the hollow connecting shaft passing through the center through hole of the case cover 23 at a higher rotation speed than the hub obtained by 30. A speed-increasing hub generator having the above configuration. 2. The speed-increasing hub generator according to claim 1, wherein the main drive gear 32 is an internal gear fixed to an inner wall of the hub. 3. The speed-increasing hub generator according to claim 1, wherein the speed-increasing mechanism 30 is a speed-increasing friction wheel train. 4. A type of speed-increasing hub generator used to provide a power source for electric appliances used in vehicles, comprising: one off-hub generator 40, including: It is provided outside the hub and has a shaft 2 of the wheel as its central axis, and includes one fixed unit and one rotor portion, and the fixed unit includes a casing 41 and a casing 4 fixed on the shaft 2.
1 includes a fixed stator portion, the rotor portion being provided around the shaft 2 and a casing 4 of the fixed unit.
1, a suitable gap is provided between the rotor portion and the stator portion, and the gap is within the magnetic field range of the outside-hub generator 40, both the rotor portion and the stator portion. The external power generator 40 provided as described above and one speed increasing mechanism 30 are provided in the hub 1, and one gear shaft sheet 31 and one gear shaft supporting sheet are provided. 36, one hollow connecting shaft, one main drive gear 32, a plurality of driven gear pairs, and one final transmission gear 35, which is a speed increasing gear train. The speed-increasing gear train is provided vertically on a hollow connecting shaft and is separated by an appropriate distance so as to face the gear shaft seat 31, and is fixedly connected to the gear shaft seat 31 by at least one horizontal bar 361. Is provided between the gear shaft sheet 31 and the gear shaft support sheet 36, Main drive gear 32
Is fixed to the inner wall of the hub 1, a final transmission gear 35 is rotatably provided around the shaft 2, and the main drive gear 32
And the final transmission gear 35, the driven gear shafts of a plurality of driven gear pairs provided between the gear shaft seat 31 and the gear shaft support seat 36 are installed between the main drive gear 32 and the hub 1. , The speed is converted by the plurality of driven gear pairs, and finally, the final transmission gear 35 is made to obtain a rotation speed higher than that of the hub 1, and the hollow that penetrates the gear shaft support sheet 36 and the wall of the hub 1 So that the rotor part of the outside-hub generator 40 connected to the final transmission gear 35 by the connecting shaft of is connected and rotated at a rotational speed higher than that of the hub 1 via the hollow connecting shaft. The speed-increasing mechanism 30 having the above structure. 5. The speed-increasing hub generator according to claim 4, wherein the main drive gear 32 is an internal gear fixed to an inner wall of the hub. 6. The speed-increasing hub generator according to claim 4, wherein the speed-increasing mechanism 30 is a speed-increasing friction wheel train.