CN105958777A - Claw pole electromagnetic and permanent-magnetic series-parallel generator - Google Patents

Abstract

The invention provides a claw-pole electromagnetic and permanent magnet hybrid generator, which belongs to the technical field of automobile motors and electrical appliances. It is composed of front end cover, rear end cover, hybrid rotor, stator, and electronic voltage regulator controller. The rectangular permanent magnet steel is installed in the tangential rectangular slot on the T-shaped salient pole, and the electric excitation winding is wound on the T-shaped salient pole. At the top of the pole, the generated magnetic field directly faces the air gap and has less magnetic flux leakage. The magnetic field in the generator air gap is jointly provided by the permanent magnet steel and the electric excitation winding. The magnetic field strength is high and the power density is high. By adjusting the current of the electric excitation winding The size and direction make the magnetic field synthesized by the permanent magnetic field and the electromagnetic field adjustable, and the output voltage of the generator is stable, ensuring the safety and reliability of the automotive electrical equipment.

Description

Claw pole electromagnetic and permanent magnet hybrid generator

technical field

The invention provides a claw-pole electromagnetic and permanent magnet hybrid generator, which belongs to the technical field of automobile motors and electrical appliances.

Background technique

The automobile industry is a symbol of modern industry and a leading industry in the development of the national economy. It plays an indispensable role in all aspects of industrial and agricultural production, transportation, and human production and life. At present, generators used in conjunction with automobiles are ubiquitous The phenomenon of unstable output voltage cannot meet the requirements of users. For example, the invention patent announced on August 8, 2001 in the Chinese Patent Gazette: Stabilized Permanent Magnet Generator, application number: 00 1 12053.0, consists of a casing, a frame, a power shaft, a rotor, a permanent magnet steel, a stator, and a stator winding , stator seat, stator sliding sleeve, balance spring, anti-rotation connecting screw, sliding block, adjusting shaft, positioning bearing, adjusting shaft driving mechanism and automatic feedback control circuit, etc. The power rotating shaft is fixed on the machine base through the positioning bearing, and the rotor It is fixed on the power rotating shaft, and one end of the stator sliding sleeve is fixed on the machine base. There is a through slot on the stator sliding sleeve along the axial direction. The balance spring is arranged in the stator sliding sleeve. Blocking, the other end pushes the sliding block placed in the stator sliding sleeve, the sliding block is fixedly connected with the stator seat by the anti-rotation connecting screw passing through the sliding sleeve slot, the center of the sliding block is threaded with one end of the adjusting shaft Actively connected, the detection signal input end of the automatic feedback control circuit is connected to the output end of the stator winding, and the control signal output end of the circuit is connected to the controlled end of the driving mechanism. The stabilized permanent magnet generator has complex structure and high cost, and its performance needs to be further improved.

Contents of the invention

The object of the present invention is to provide a claw-pole electromagnetic and permanent magnet that can overcome the above defects. The magnetic field in the air gap of the generator is provided by the permanent magnet steel and the electric excitation winding. The magnetic field can be adjusted, the output voltage is stable, and the installation is convenient. The technical content of the hybrid generator is as follows:

The claw pole electromagnetic and permanent magnet hybrid generator consists of a front end cover, a rear end cover, a hybrid rotor, a stator, and an electronic voltage regulator controller. It is characterized in that: the hybrid rotor has a carbon brush slip ring structure The claw pole electric excitation rotor and the hybrid excitation rotor are composed of the salient pole electric excitation rotor and the radial permanent magnet rotor;

The radial permanent magnet rotor is composed of a shaft, a rectangular permanent magnet steel, and a rotor core. There are an even number of T-shaped salient poles evenly distributed on the rotor core. On the circumference, the inner sides of the transverse parts of all T-shaped salient poles are straight lines and tangent to the same circle. In the middle of the outer end of each T-shaped salient pole, there is a tangential rectangular slot that runs through the thickness of the rotor core. The outer edge of the slot is connected to the outer arc of the T-shaped salient pole, the inner edge of the tangential rectangular slot is not connected to the inner side of the transverse part of the T-shaped salient pole, and the midpoint of the inner edge of each tangential rectangular slot is connected to the rotor The connecting lines in the center of the iron core are all equal, and the rectangular permanent magnet steel is placed in the tangential rectangular groove on the T-shaped salient pole in such a way that the polarity of the outer surface of the rectangular permanent magnet steel is N pole and the S pole is spaced apart from each other. The rotor core is press-fitted on the shaft.

Working principle: The engine drives the pulley of the hybrid power generation device to rotate, that is, the rotor magnetic field rotates, and the armature winding cuts the magnetic force lines to generate electromotive force, which provides power to the automotive electrical equipment.

Compared with the prior art, the present invention, the rectangular permanent magnet steel is installed in the tangential rectangular groove on the T-shaped salient pole, the electric excitation winding is wound on the T-shaped salient pole, and the generated magnetic field directly faces the air gap, leakage Less magnetism, the magnetic field in the air gap of the generator is jointly provided by the permanent magnet steel and the electric excitation winding, the magnetic field strength is high, and the power density is high. It can be adjusted, and the output voltage of the generator is stable, ensuring the safety and reliability of automotive electrical equipment.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a sectional view of the hybrid excitation rotor of the embodiment shown in Fig. 1 .

In the figure: 1. Electronic voltage regulator controller 2. Shaft 3. Rear end cover 4. Stator 5. Rectangular permanent magnet steel 6. Rotor core 7. Front end cover.

detailed description

The present invention will be further described below in conjunction with accompanying drawing:

The claw-pole electromagnetic and permanent magnet hybrid generator consists of a front end cover 7, a rear end cover 3, a hybrid rotor, a stator 4, and an electronic voltage regulator controller 1. It is characterized in that: the hybrid rotor is composed of carbon The brush slip ring structure is composed of claw pole electric excitation rotor and hybrid excitation rotor, and the hybrid excitation rotor is composed of salient pole electric excitation rotor and radial permanent magnet rotor;

The radial permanent magnet rotor is composed of a shaft 2, a rectangular permanent magnet steel 5, and a rotor core 6. An even number of T-shaped salient poles are evenly distributed on the rotor core 6, and the outer sides of all T-shaped salient poles are circular. arc and on the same circumference, the inner sides of all T-shaped salient pole transverse parts are straight lines and tangent to the same circle, and in the middle of each T-shaped salient pole outer end, there is a tangential rectangle that runs through the thickness of the rotor core 6 The outer edge of the tangential rectangular groove is connected to the outer arc of the T-shaped salient pole, the inner edge of the tangential rectangular groove is not connected to the inner side of the transverse part of the T-shaped salient pole, and the inner edge of each tangential rectangular groove The connecting line between the midpoint of the side and the center of the rotor core 6 is equal, and the rectangular permanent magnet steel 5 is placed on the T-shaped salient poles in such a way that the polarity of the outer surface of the rectangular permanent magnet steel 5 is N pole and S pole are spaced apart from each other. The rotor core 6 is press-fitted on the shaft 2 in the tangential rectangular slot on the top.

Claims (1)

1. A claw-pole electromagnetic and permanent magnet hybrid generator, consisting of a front end cover (7), a rear end cover (3), a hybrid rotor, a stator (4), and an electronic voltage regulator controller (1) , characterized in that: the hybrid rotor is composed of a claw pole electric excitation rotor with a carbon brush slip ring structure and a hybrid excitation rotor, and the hybrid excitation rotor is composed of a salient pole electric excitation rotor and a radial permanent magnet rotor; The radial permanent magnet rotor is composed of a shaft (2), a rectangular permanent magnet steel (5), and a rotor core (6). There are an even number of T-shaped salient poles evenly distributed on the rotor core (6). The outer sides of the pole transverse parts are all circular arcs and on the same circumference, the inner sides of all T-shaped salient pole transverse parts are straight lines and tangent to the same circle, and there is a penetrating rotor in the middle of each T-shaped salient pole outer end. The thickness of the iron core (6) is a tangential rectangular groove, the outer edge of the tangential rectangular groove is connected with the outer circular arc of the T-shaped salient pole, and the inner edge of the tangential rectangular groove is not connected with the inner side of the transverse part of the T-shaped salient pole. The connection between the midpoint of the inner side of each tangential rectangular slot and the center of the rotor core (6) is connected, and the polarity of the outer surface of the rectangular permanent magnet steel (5) is N The poles and the S poles are placed in the tangential rectangular slots on the T-shaped salient poles sequentially in a manner of being spaced apart from each other, and the rotor core (6) is press-fitted on the shaft (2).