JPH0833271A - Generator - Google Patents

Abstract

PURPOSE:To obtain a generator which can be started easily by reducing the rotary torque of a rotor required for starting. CONSTITUTION:When an auxiliary wheel 10 is rotated in the direction (shown by an arrow A) idling with respect to a rotary wheel 9, a spiral spring 15 interlocked with the rotation of the auxiliary wheel 10 is deformed. When the rotation is stopped, the spiral spring 15 imparts a rotating force to the auxiliary wheel 10 in the direction for transmitting the rotating force to the rotary wheel 9 (shown by an arrow B). The rotating force is transmitted from the auxiliary wheel 10 to the rotary wheel 9 thence through a double speed gear 8 to a rotor thus reducing the rotary torque of the rotor required for rotation in this direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a generator that converts the rotational energy of a rotor into electric energy by rotating the rotor with respect to a stator.

[0002]

2. Description of the Related Art In a generator of this type, a stator and a rotor are opposed to each other at a constant interval, a plurality of permanent magnets are fixed to one of them at equal intervals around the axis of the rotor, and another permanent magnet is fixed to the other. A plurality of iron cores are formed at equal intervals around the axis of the rotor so as to face each other, and a coil is wound. When the rotor is rotated, the rotational energy of the rotor is converted into electrical energy through the coil due to the relative movement between the magnetic flux of the permanent magnet and the iron core.

By the way, between the rotor and the stator,
The permanent magnet and the iron core work to exert a magnetic attraction force to the rotor's rotation resistance.However, since an inertial force is added to the rotor as the rotor rotates during power generation, the rotor receives such a large rotational torque. The rotor can be rotated without it.

[0004]

However, since no inertial force is applied to the rotor at the time of starting, the rotational resistance of the rotor becomes larger than that at the time of power generation, and unless a large rotational torque is applied to the rotor, the rotor cannot be rotated. I can't rotate,
It was difficult to start.

An object of the present invention is to obtain a generator that can be easily started by reducing the rotating torque of the rotor required at the time of starting.

[0006]

DISCLOSURE OF THE INVENTION The present invention is a generator that converts the rotational energy of a rotor into electric energy by rotating the rotor with respect to a stator, and is capable of rotating and operating in conjunction with the rotor. The rotating wheel that is provided, the auxiliary wheel that rotates in conjunction with the rotating wheel via a one-way clutch, and the auxiliary wheel that is rotatably operated, and the auxiliary wheel that interlocks with the rotation when rotating in one direction in which the auxiliary wheel idles with respect to the rotating wheel. And an elastic member that applies a rotational force in the other direction to the auxiliary wheel by elastic force when the rotation is stopped.

[0007]

According to the present invention, when the auxiliary wheel is rotationally operated in one direction in which the auxiliary wheel idles, the elastic member elastically deforms in association with the rotation of the auxiliary wheel, and when the rotational operation is stopped,
The elastic force of the elastic member gives a rotational force to the auxiliary wheel in the other direction. This rotational force is transmitted from the auxiliary wheel to the rotating wheel via the one-way clutch and is also transmitted from the rotating wheel to the rotor, and the rotational torque of the rotor required for rotation in this direction is reduced.

Therefore, the auxiliary wheel is rotated in one direction in which the auxiliary wheel idles, and after the rotation operation is stopped, the rotor is rotated in the direction in which the rotational force is applied by the elastic force of the elastic member. If the wheels are rotated to start, the rotational torque of the rotor required at the time of start is reduced, and the start can be easily performed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A generator to which the present invention is applied will be described below with reference to the drawings. In this generator, as shown in FIG. 1, the stator 1 and the rotor 2 face each other in the axial direction of the rotor 2 at regular intervals, and the rotor 2 is provided with a plurality of permanent magnets 3.
A plurality of iron cores 4 fixed to the stator 1 at equal intervals around the axis and facing the respective permanent magnets 3 are formed at equal intervals around the axis of the rotor 2 and a coil 5 is wound. When the rotor 2 is rotated, the rotational energy of the rotor 2 is converted into electrical energy through the coil 5 due to the relative movement of the magnetic flux of the permanent magnet 3 and the iron core 4.

The stator 1 is located below the rotor 2 and is fixed to a base (not shown) below the rotor 2. Each iron core 4 is projectingly formed on the upper part of the stator 1 and a coil 5 is connected to a connecting portion of each iron core 4. It is wrapped.

The rotor 2 is located above the stator 1, and each permanent magnet 3 is attached to the lower surface of the rotor 2. Rotor 2
The drive shaft 6 is fixedly attached to the drive shaft 6, and is configured to rotate integrally with the drive shaft 6 around the axis of the drive shaft 6.

The drive shaft 6 extends above the rotor 2 and is rotatably supported above the rotor 2. That is, a support plate 7 fixed to a base (not shown) is provided above the rotor 2, and the drive shaft 6 rotatably penetrates through the support plate 7 and protrudes above it.
An enlarged diameter portion 6a that abuts the upper surface of the support plate 7 is formed at the upper end of the drive shaft 6, and the drive shaft 6 is rotatably supported by the support plate 7 above the rotor 2 with the enlarged diameter portion 6a as a retaining member. ing.

A small-diameter double-speed gear 8 is coaxially fixed to the drive shaft 6 at the tip of its upper end so that it can rotate integrally with the double-speed gear 8. The double speed gear 8 is located above the support plate 7, and a rotating wheel 9 and an auxiliary wheel 10 are arranged on the side of the supporting plate 7 as shown in detail in FIGS. 2 and 3.

The rotating wheel 9 is rotatably supported on the upper end of a fixed shaft 11 provided upright on a base (not shown), and a handle 12 is integrally projectingly provided on the upper surface thereof. It can be rotated. An enlarged diameter portion 11a is formed at the upper end of the fixed shaft 11, and the rotary wheel 9 is rotatably supported by the enlarged diameter portion 11a as a seat.

The rotating wheel 9 is adapted to rotate in conjunction with the rotor 2. That is, teeth 9 a that mesh with the double speed gear 8 are formed on the outer periphery of the rotary wheel 9 so that the rotary wheel 9 is
It is designed to rotate in conjunction with the rotor 2 via.

The auxiliary wheel 10 is rotatably supported by a fixed shaft 11, and a handle 13 is integrally projectingly provided on the upper surface of the auxiliary wheel 10 so that the handle 13 can be gripped and rotated.

The auxiliary wheel 10 is rotatable in conjunction with the rotary wheel 9 through a one-way clutch and rotates in a direction in which the rotary wheel 9 idles. When the rotation is stopped, the rotary force is applied to the rotary wheel 9. The rotational force is applied in the direction of transmitting.

That is, as shown in FIGS. 2 and 3, a circular recess 9b is formed on the upper surface of the rotary wheel 9, and ratchet teeth 9c are formed on the side wall of the recess 9b over the entire circumference thereof. The auxiliary wheel 10 is inserted inside the recess 9b with its bottom surface as a seat. Further, on the outer circumference of the auxiliary wheel 10, ratchet teeth 10a forming a one-way clutch with the ratchet teeth 9c are formed over the entire circumference, and the auxiliary wheel 10 can rotate on the fixed shaft 11 with a predetermined play. The ratchet teeth 9c and the ratchet teeth 10a are partially disengageable by the radial movement of the auxiliary wheel 10 caused by the play between the auxiliary wheel 10 and the fixed shaft 11. Further, one end of a spiral spring 15 as an elastic member is locked to the upper surface of the auxiliary wheel 10 via a pin 14, and the other end of the spiral spring 15 is locked to the fixed shaft 11, and the spring of this spiral spring 15 is locked. The auxiliary wheel 10 is urged in the radial direction by the force so that the ratchet teeth 9c and the ratchet teeth 10a are partially meshed with each other.

The auxiliary wheel 10 is interlocked with the rotary wheel 9 through the ratchet teeth 9c and the ratchet teeth 10a,
When the auxiliary wheel 10 is rotated in a direction in which the auxiliary wheel 10 idles with respect to the rotating wheel 9 (direction of arrow A in FIG. 2), the spiral spring 15 is deformed in conjunction with the rotation of the auxiliary wheel 10, and when the rotation is stopped, the spiral spring 15 is rotated. Due to the spring force, the auxiliary wheel 10 is given a rotational force in the direction of transmitting the rotational force to the rotating wheel 9 (the direction of arrow B in FIG. 2).

The spiral spring 15 has the auxiliary wheel 10 and the rotating wheel 9
Rotate in the direction that idles (direction of arrow A in FIG. 2),
The spring force is set such that the stopped state of the auxiliary wheel 10 is maintained when the rotation is stopped. That is,
When the auxiliary wheel 10 rotates in a direction in which the auxiliary wheel 10 idles (direction of arrow A in FIG. 2) and stops the rotation, the spring force of the spiral spring 15 transmits the rotational force to the auxiliary wheel 10 to the rotary wheel 9. Although the rotational force in the direction (arrow B in FIG. 2) is applied, the auxiliary wheel 10 is maintained in a stopped state due to the gear ratio between the rotary wheel 9 and the double speed gear 8.

According to the above construction, when the handle 13 is gripped and the auxiliary wheel 10 is rotated in the idling direction with respect to the rotating wheel 9 (the direction of arrow A in FIG. 2), the auxiliary wheel 10 is rotated. When the spiral spring 15 is deformed and the rotation operation is stopped, the auxiliary wheel 10 is driven by the spring force of the spiral spring 15.
Direction to transmit rotational force to the rotating wheel 9 (direction of arrow B in FIG. 2)
Is applied. This rotating force is transmitted from the auxiliary wheel 10 to the rotating wheel 9 via the ratchet teeth 9c and the ratchet teeth 10a, and is also transmitted from the rotating wheel 9 to the rotor 2 via the double speed gear 8 and is necessary for rotation in this direction. The rotating torque of the rotor 2 is reduced.

Therefore, the direction in which the handle 13 is gripped and the auxiliary wheel 10 idles with respect to the rotating wheel 9 (see arrow A in FIG. 2).
Direction), and after the rotation operation is stopped, the rotor 2
If the handle 12 is gripped so as to rotate in the direction in which the rotational force is applied by the spring force of the spiral spring 15 (the direction of arrow B in FIG. 2) and the rotary wheel 9 is rotated to start, it is necessary at the time of start. The rotational torque of the rotor 2 is reduced, and the rotor 2 can be easily started.

After the start, the auxiliary wheel 10 rotates following the rotating wheel 9 by the spring force of the spiral spring 15, and the auxiliary spring 10 rotates along with the auxiliary wheel 10 as the auxiliary wheel 10 rotates.
When the rotational force due to the spring force of No longer acts, the rotation of the auxiliary wheel 10 is stopped at the same time, the rotation wheel 9 idles with respect to the auxiliary wheel 10, and the auxiliary wheel 10 interferes with the rotation of the rotation wheel 9. Never. Further, after the rotational force due to the spring force of the spiral spring 15 does not act on the auxiliary wheel 10, the rotor 2
Due to the inertial force applied to the rotor 2 due to its rotation,
In addition, the rotor 2 can be rotated without applying such a large torque.

In the above embodiment, the rotary wheel 9 is configured to rotate in conjunction with the rotor 2 via the double speed gear 8. However, the invention is not limited to this, and the rotary wheel 9 is coaxially fixed to the drive shaft 6 and assisted. The double speed gear 8 may be omitted by, for example, supporting the wheel 10 on the drive shaft 6 so as to be rotatable relative to the rotating wheel 9 and interposing the spiral spring 15 between the auxiliary wheel 10 and the fixing member. .

Although the spiral spring 15 is used as the elastic member in the above embodiment, the elastic member is not limited to this, and another elastic member such as rubber may be used.

In the above embodiment, the stator 1 is provided with the iron core 4 and the rotor 2 is provided with the permanent magnet 3. However, the present invention is not limited to this. The stator 1 is provided with the permanent magnet 3 and the rotor 2 is provided with the iron core 4. You may do it.

Further, in the above embodiment, the stator 1 and the rotor 2 are arranged so as to face each other in the axial direction of the rotor 2. However, the present invention is not limited to this. You may make it arrange | position the stator 1 and the rotor 2 so that the rotor 2 may rotate.

[0028]

As described above, in the power generator according to the present invention, the rotating wheel that is rotatably interlocked with the rotor and rotatably operated, and the rotative wheel and the rotary wheel are rotatably interlocked with each other via the one-way clutch. The auxiliary wheel provided and elastically deforms in conjunction with the rotation when the auxiliary wheel rotates in one direction idling with respect to the rotating wheel, and when the rotation is stopped, the auxiliary wheel is elastically moved in the other direction. Since it has an elastic member that imparts a rotational force, it has an excellent effect that the rotational torque of the rotor required at the time of starting is reduced and the engine can be easily started.

[Brief description of drawings]

FIG. 1 is a front view showing a schematic structure of a generator to which the present invention is applied.

FIG. 2 is a plan view of an essential part of FIG.

FIG. 3 is a sectional view taken along line CC of FIG.

[Explanation of symbols]

 1 stator 2 rotor 9 rotating wheel 9c ratchet tooth (one-way clutch) 10 auxiliary wheel 10a ratchet tooth (one-way clutch) 15 spiral spring (elastic member)

Claims (1)

[Claims] 1. A generator for converting rotational energy of a rotor into electric energy by rotating the rotor with respect to a stator, wherein the rotating wheel is rotatably provided while rotating in conjunction with the rotor. Auxiliary wheel that rotates in conjunction with the rotating wheel via a one-way clutch and is rotatably provided, and when the auxiliary wheel rotates in one direction that idles with respect to the rotating wheel, elastically deforms in conjunction with the rotation. An electric generator having an elastic member that applies a rotational force in the other direction to the auxiliary wheel by an elastic force when the rotation is stopped.