JPS6311863B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a new type of electric motor.

[Conventional technology]

As is well known, known motor structures include a wound type motor, an induction motor, a DC motor, and a motor using a permanent magnet in one of the rotor and the stator.

[Purpose of the invention]

This invention relates to a new type of electric motor that uses magnetized magnetic poles or permanent magnets in its rotor, and its purpose is to provide general electric motors that are easy to wind and assemble, as well as electric motors with a built-in power supply and high torque. We are here to provide you with the electric motor you can get.

[Structure of the invention]

This invention was made to achieve the above object, and consists of two rows of magnetic poles made of permanent magnets arranged in the circumferential direction on the outer periphery of the rotor, and the order of magnetization of one row is N→ in the rotational direction. S→N→S..., and the other is arranged in the reverse order, and arranged in the axial direction on the stator, with both poles facing the magnetic ends of each row of the rotor. This electric motor is characterized in that a suitable number of magnetic pole pieces are provided around which stator windings are wound and the magnetic poles on the same side have the same polarity, and a direct current is sequentially passed through the stator windings.

〔Example〕

The following is an explanation of the embodiments based on the drawings.

Figure 1 is a front view showing only the magnetic poles of the embodiment;
The figure is a side view of the same, where 1 is a rotor and 2 is a rotating shaft.

On the circumferential surface of the rotor 1, four permanent magnet pieces are provided in two rows at equal intervals. The magnetization order of M ₁₁ , M ₁₂ , M ₁₃ , M ₁₄ in the first row (on the left side in FIG. 2) is magnetized in the order of N→S→N→S, and (on the right side in the figure)
M ₂₁ , M ₂₂ , M ₂₃ , and M ₂₄ are magnetized in the reverse order of S→N→S→N.

M ₃₁ , M ₃₂ , M ₃₃ , M ₃₄ , M ₃₅ , M ₃₆ are stator magnets with stator windings L ₁ , L ₂ , L ₃ , L ₄ , L ₅ , and L ₆ wound around the center, respectively. It is a single piece, with both ends facing each row of the rotor magnetic poles, and is arranged so that the magnetic poles on the same side have the same polarity.

Although not shown, direct current is sequentially supplied to the stator windings L ₁ to _{L 6} from a battery built in the rotor 1 via a commutator and brushes, or via an electric valve control device, etc. It shall be configured as follows.

[Action and effect]

Since it is configured as above, the stator winding is now
When direct current is sequentially supplied from L ₁ , the rotor 1 rotates clockwise due to the attractive force of the opposite polarities and the repulsive force of the same polarities, similar to known electric motors.

Since the electric motor according to the present invention is a tandem type, it is possible to obtain an electric motor having a larger torque than a conventional electric motor using permanent magnets.

Furthermore, in this embodiment, the first and second rows of permanent magnet pieces provided on the rotor 1 are arranged in the same phase, but if they are arranged out of phase, there is no limit to the number of poles as in the conventional case. is obtained. In other words, with a conventional single type, if the number of magnetic poles on the rotor side and the number of magnetic poles on the stator side are in a relationship such that the number of magnetic poles on one side can evenly divide the number of magnetic poles on the other side, non-rotation will occur due to balance. However, with the structure according to the present invention, even if one row is in such a state, the other row is in an unbalanced state, so no rotation occurs and the degree of freedom in design is doubled. Can be done.

Moreover, its structure is simple as can be easily seen from the drawings, and winding is easy, so it can be manufactured at low cost.

In addition, the present inventor is proceeding with the development of an electric motor with a built-in power supply, but if it has a single type structure, it will not be possible to obtain a large torque and its applications will be limited. We are able to provide superior types of electric motors.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the main structure of an embodiment of the present invention, and FIG. 2 is a side view of the same. 1... Rotor, 2... Rotating shaft, M ₁₁ to _{M 14} and
_M21 to _M24 ...Rotor magnetic pole cantilever, _M31 to _M36 ...
Stator pole piece, L ₁ to L ₆ ... stator winding.

Claims (1)

[Claims] 1. Magnetic poles made of permanent magnets are provided on the outer periphery of the rotor in two rows in the circumferential direction, and arranged so that the order of magnetization in one row is N→S→N→S... in the rotation direction,
and the other is arranged in the reverse order, and the stator has magnetic pole pieces wound with stator windings arranged in the axial direction and with both poles facing the magnetic poles of each row of the rotor. An electric motor characterized in that a suitable number of magnetic poles on the same side are provided so as to have the same polarity, and direct current is sequentially passed through the stator windings.