JPH04124875U - magnet generator - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose of this invention is to increase the output current of an internal combustion engine at low rotation speeds. [Structure] First and second flywheels 5 and 10 are fixed to a boss 4 of a crankshaft 3, and first and second magnet rotors 7 and 12 are arranged on the inner wall thereof, and First and second armature windings 9 and 15 are fixedly disposed with respect to the internal combustion engine main body 2 in correspondence with the second magnet rotors 7 and 12.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to magnet generators, especially those that synchronize with the rotation of the crankshaft of an internal combustion engine. This relates to a rotating flywheel type magnet generator.

0002

[Conventional technology]

Figure 2 is a side sectional view of the main parts of a conventional magnet generator, and Figure 3 is a plan view of the armature winding in Figure 2. In the figure, 1 is the first stator fixed to the internal combustion engine main body 2, and 3 is the internal combustion engine. The crankshaft 4 of the internal combustion engine protrudes from the engine body 2 and is fixed to the tip of the crankshaft 3. The attached boss 5 is a bowl-shaped magnetic material fixed to the boss 4 with a first rivet 6. The first flywheel 7 is arranged along the inner peripheral surface of the first flywheel 5. 8 is a first magnet rotor consisting of a plurality of magnetic poles having alternately different polarities; 9 is a first core fixed to the stator 1, and 9 is a first electric wire wound around the first core 8. This is the machine winding.

0003 In the above magnet generator, the rotation of the crankshaft 3 causes the first flywheel to rotate. When the rotor 5 rotates, the electromagnetic induction between the rotating first magnet rotor 7 and the first armature winding 9 Generates electricity by conduction. This current then flows through the fuel supply, headlamps, and Offered to Dio et al.

0004

[Problem that the idea aims to solve]

In the conventional magnet generator, as can be seen from Fig. 4, the output voltage decreases when the internal combustion engine is at low rotation speed and idle rotation (N ₁ ), and the output voltage falls below the current consumption of the entire system. The shortfall in current supply to the system is compensated for by the capacitor, but if this condition continues for a long time, the supply capacity of the capacitor may be exceeded and the system may eventually stop operating. .

[0005] This idea was made to solve the above problem, and was developed to solve the problem mentioned above. The object of the present invention is to obtain a magnet generator that can increase the output current at a given time.

[0006]

[Means to solve the problem]

The magnet generator according to this invention has a crankshaft that rotates in synchronization with the rotation of an internal combustion engine. a first flywheel fixed to the boss of the first flywheel; and an inner wall of the first flywheel. a first magnet rotor consisting of magnetic poles disposed in and having alternately different polarities; fixed to the fuel engine main body via a first stator and facing the first magnet rotor; a first armature winding located outside the flywheel; and a first armature winding located outside the flywheel. a second flywheel fixed to the a second magnet rotor consisting of magnetic poles having alternately different polarities; is fixed to the main body of the magnet rotor via a second stator and is disposed opposite to the second magnet rotor. a second armature winding, said first and second magnet rotors, and said first and second armature windings; Equipped with a capacitor that stores electricity generated by electromagnetic induction with the second armature winding. It is something that has been learned.

[0007]

[Effect]

This idea results in the provision of multiple sets of power generation elements within one magnet generator. Therefore, the output current increases when the internal combustion engine is running at low speed and when it is idling.

[0008]

【Example】

Example 1 An embodiment of this invention will be described below with reference to the drawings. Figure 1 shows an example of this idea. It is a side cross-sectional view of main parts showing the same parts as those in FIGS. 2 and 3, or the same parts are designated by the same symbols and the explanation thereof will be omitted.

[0009] In the figure, 10 is located outside the first flywheel 5 and attached to the boss 4. The second flywheel is fixed with rivets 11, and 12 is the second flywheel. It consists of a plurality of magnetic poles arranged along the inner peripheral wall surface of 10 and having alternately different polarities. a second magnetic rotor, 13, a second core fixed to a second stator 14, 15; is wound around the second core 13 and is disposed opposite to the second magnet rotor 12. This is the armature winding.

0010 In such a magnet generator, the rotation of the crankshaft 3 causes the first and second flaps to be rotated. The first and second magnet rotors 7, 12 rotate and , generates electricity through electromagnetic induction with the first and second armature windings 9 and 15, and one As a result of having two sets of power generation elements in the magnet generator, compared to the conventional magnet generator, Therefore, the output current increases when the internal combustion engine is running at low speed and when it is idling.

[0011] Example 2 In addition, a third flywheel is further fixed to the boss 4, and the flywheel is A magnet rotor and an armature winding may be provided corresponding to the respective coils.

0012

[Effect of the idea]

As explained above, according to the magnet generator of this invention, within one magnet generator, By installing multiple sets of power generation elements, the internal combustion engine's low speed and idle speed can be reduced. The output current increases when the internal combustion engine is running at low speeds and when it is idling. It is possible to prevent insufficient power storage in the capacitor due to a drop in power and the resulting system stoppage. It has the effect of

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a main part showing an embodiment of this invention.

FIG. 2 is a side sectional view showing an example of a conventional magnet generator.

FIG. 3 is a plan view of the armature winding of FIG. 2;

FIG. 4 is a diagram showing the relationship between rotation speed and output current in a magnet generator.

[Explanation of symbols]

1 First stator 2 Internal combustion engine body 3 Crankshaft 4 Boss 5 First flywheel 7 First magnet rotor 9 First armature winding 10 Second flywheel 12 Second magnet rotor 14 Second stator 15 Second armature winding

Claims (1)

[Scope of utility model registration request] 1. A first flywheel fixed to a boss of a crankshaft that rotates in synchronization with the rotation of an internal combustion engine, and magnetic poles arranged on an inner wall of the first flywheel and having alternately different polarities. a first magnet rotor fixed to the internal combustion engine main body via a first stator;
a first armature winding disposed facing the magnet rotor; a second flywheel located outside the first flywheel and fixed to the boss; a second magnet rotor disposed on the inner wall of the wheel and consisting of magnetic poles having alternately different polarities; and a second magnet rotor fixed to the main body of the internal combustion engine via a second stator and facing the second magnet rotor. a second armature winding disposed; and a condenser for storing electricity generated by electromagnetic induction between the first and second magnet rotors and the first and second armature windings. Magnet generator.