CN202231509U

CN202231509U - Rotor of vehicular generator

Info

Publication number: CN202231509U
Application number: CN201120348743XU
Authority: CN
Inventors: 陆军; 黄新平; 单旭明
Original assignee: NINGBO JIAHONG MOTOR CO Ltd
Current assignee: NINGBO JIAHONG MOTOR CO Ltd
Priority date: 2011-09-19
Filing date: 2011-09-19
Publication date: 2012-05-23
Anticipated expiration: 2021-09-19

Abstract

The utility model relates to a rotor of a vehicular generator, which comprises a rotor shaft, a front claw pole, a rear claw pole and an excitation coil; a claw pole of the front claw pole and a claw pole of the rear claw pole are mutually staggered and wedged and used for wrapping the excitation coil therein; a first magnet yoke sleeved outside the rotor shaft and integrally formed with the front claw pole is arranged at the inner side of the front claw pole in a protruding manner; a second magnet yoke sleeved outside the rotor shaft and integrally formed with the rear claw pole is arranged at the inner side of the rear claw pole in a protruding manner; the inner end face of the second magnet yoke is in contact with the inner end face of the first magnet yoke; and the excitation coil is sleeved outside the first magnet yoke and the second magnet yoke. The rotor of the vehicular generator disclosed by the utility model has the benefits that: because of adopting the structure, the front claw pole and the rear claw pole are in contact through the first magnet yoke and the second magnet yoke; furthermore, only one contact clearance exists between the front claw pole and the rear claw pole; for the rotor of one generator, the generator is good with one clearance; the conduction of a magnetic circuit and the saturation capacity of the magnetic circuit are greatly increased; the numerical value of leakage magnetic flux is reduced; the efficiency of the generator is increased; the output power is high; and the service life of the generator is further increased.

Description

A kind of rotor of alternator for vehicle

Technical field

The utility model relates to motor technology, relates in particular to a kind of rotor of alternator for vehicle.

Background technology

The rotor of existing alternator for vehicle mainly comprises armature spindle, be sleeved on this armature spindle outer the fore paw utmost point and the rear solid end utmost point and be located at the said fore paw utmost point and the said rear solid end utmost point between magnet exciting coil; In the pawl utmost point of the said fore paw utmost point and the extremely interlaced contract of the pawl of the said rear solid end utmost point are gone into and said magnet exciting coil are coated on; Said armature spindle is set with the yoke between the said fore paw utmost point and the said rear solid end utmost point outward, and this yoke is set with said magnet exciting coil outward.Because the end faces of both sides of yoke has certain clearance respectively and between the contact-making surface of the fore paw utmost point and the rear solid end utmost point; For the rotor of a generator, just have two gaps so; Be unfavorable for the conducting of magnetic circuit, be prone to produce the problem of leakage flux, cause the efficient of generator low; Power output is little, further influences the useful life of generator.

Summary of the invention

Have above-mentioned deficiency in the prior art in order to overcome, the utility model provide a kind of simple in structure, rationally distributed, efficient is high, the rotor of the alternator for vehicle of long service life.

The technical scheme that the utility model solves its technical problem is: a kind of rotor of alternator for vehicle; Comprise armature spindle, be sleeved on this armature spindle outer the fore paw utmost point and the rear solid end utmost point and be located at the said fore paw utmost point and the said rear solid end utmost point between magnet exciting coil; In the pawl utmost point of the said fore paw utmost point and the extremely interlaced contract of the pawl of the said rear solid end utmost point are gone into and said magnet exciting coil are coated on; The inboard of the said fore paw utmost point convexes with that to be sleeved on said armature spindle outer and process the yoke one of one with the said fore paw utmost point; The inboard of the said rear solid end utmost point convexes with that to be sleeved on said armature spindle outer and process the yoke two of one with the said rear solid end utmost point; The inner face of this yoke two contacts with the inner face of said yoke one, is set with said magnet exciting coil outside said yoke one and the said yoke two.

The beneficial effect of the utility model is: owing to adopt said structure, contact through yoke one and yoke two between the fore paw utmost point and the rear solid end utmost point, and have only a contact gap between the fore paw utmost point and the rear solid end utmost point; A gap is better for the rotor of a generator; The conducting of magnetic circuit and the saturation capacity of magnetic circuit are improved a lot, reduced the numerical value of leakage flux, improved the efficient of generator; Power output is big, has further increased the useful life of generator.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.

With reference to Fig. 1; A kind of rotor of alternator for vehicle; Comprise armature spindle 1, be sleeved on the fore paw utmost point 2 and the rear solid end utmost point 3 of this armature spindle outer 1 and be located at the said fore paw utmost point 2 and the said rear solid end utmost point 3 between magnet exciting coil 4; In the pawl utmost point of the said fore paw utmost point 2 and the extremely interlaced contract of the pawl of the said rear solid end utmost point 3 are gone into and said magnet exciting coil 4 are coated on; The inboard of the said fore paw utmost point 2 convexes with that to be sleeved on said armature spindle 1 outer and process the yoke 1 of one with the said fore paw utmost point 2,, the inboard of the said rear solid end utmost point 3 convexes with that to be sleeved on said armature spindle 1 outer and process the yoke 26 of one with the said rear solid end utmost point 3; The inner face of this yoke 26 contacts with the inner face of said yoke 1, is set with said magnet exciting coil 4 outside said yoke 1 and the said yoke 26.Owing to contact through yoke 1 and yoke 26 between the fore paw utmost point 2 and the rear solid end utmost point 3; And has only a contact gap between the fore paw utmost point 2 and the rear solid end utmost point 3; A gap is better for the rotor of a generator, and the conducting of magnetic circuit and the saturation capacity of magnetic circuit are improved a lot, and the efficient of generator is high; Power output is big, has further increased the useful life of generator.

Claims

1. the rotor of an alternator for vehicle; Comprise armature spindle, be sleeved on this armature spindle outer the fore paw utmost point and the rear solid end utmost point and be located at the said fore paw utmost point and the said rear solid end utmost point between magnet exciting coil; In the pawl utmost point of the said fore paw utmost point and the extremely interlaced contract of the pawl of the said rear solid end utmost point are gone into and said magnet exciting coil are coated on; It is characterized in that: the inboard of the said fore paw utmost point convexes with that to be sleeved on said armature spindle outer and process the yoke one of one with the said fore paw utmost point; The inboard of the said rear solid end utmost point convexes with that to be sleeved on said armature spindle outer and process the yoke two of one with the said rear solid end utmost point; The inner face of this yoke two contacts with the inner face of said yoke one, is set with said magnet exciting coil outside said yoke one and the said yoke two.