JPH0747977Y2 - Rotary rectifier for brushless synchronous generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a rotary rectifier of a brushless synchronous generator mounted on a vehicle or the like.

(Prior Art) Conventionally, a rotary rectifier is incorporated in a brushless synchronous generator mounted on a vehicle or the like.

That is, as shown in FIG. 4, a rotary rectifier Ref is provided, and the 3φ exciter armature EXG is connected to the AC side and the main generator rotating field coil F is connected to the DC side. ing. Here, ACG is a stator, and F'is a field coil for exciter.

And this rotary rectifier Ref is generally attached to an attachment.

(Problems to be solved by the invention) As described above, since the rotary rectifier of the conventional brushless synchronous generator is designed to be attached to the fixture, the fixture is required, and the space is required accordingly. Become.

Further, when the armature core for an exciter machine is rotated, a centrifugal force exerts an outward force, so that the rectifying element may be damaged by the centrifugal force.

In order to eliminate the above problems, the present invention eliminates the need for a mounting tool by fitting a rectifying element in the armature core of an exciter machine, reducing the space, making the rotary rectifier compact, and centrifugal force. An object of the present invention is to provide a rotary rectifier for a brushless synchronous generator that can prevent damage to the rectifying element due to the above.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the present invention provides an armature core for an exciter machine having a main generator rotating field coil and an armature for the exciter machine in parallel on the same rotating shaft. In the brushless synchronous generator, an armature core for an exciter having a plurality of individual through holes formed in the rotation axis direction and an insulating tube fitted in the individual through holes are attached. A rectifying element, and an exciter armature core coil-side crossover wire and main generator that are distributed to both sides of the through hole in the rotation axis direction of the exciter armature core according to the polarity of the rectifying element. The machine rotation field coil side connecting wire is arranged.

(Operation) As described above, the brushless synchronous generator of the present invention incorporates the rotary rectifier.

This rotary rectifier generally requires a rectifying element mounting device, but according to the present invention, an armature core for an exciter machine having a plurality of individual through holes formed in the rotation axis direction, and the individual through holes. A rectifying element to which an insulating tube fitted in the rectifier is attached, and an exciter that is distributed to both sides of the through hole in the rotation axis direction of the armature core for the exciter according to the polarity of the rectifying element. Since the armature iron core coil side connecting wire and the main generator rotating field coil side connecting wire are arranged, a mounting tool is not required, and the space can be reduced accordingly and the size can be shortened. Furthermore, damage to the rectifying element due to centrifugal force can be prevented, the generator can be manufactured in a small size, and the price can be reduced.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a sectional view of an armature for an exciter of a brushless synchronous generator of the present invention, FIG. 2 is a view taken along the line AA of FIG. 1, and FIG. 3 is a view taken along the line BB of FIG. is there.

As shown in these drawings, six through-holes are formed in the armature core 1 for an exciter, and the rectifying element 3 covered with the insulating tube 2 is inserted and coated therein. If the rectifying elements 3 are inserted by alternately changing the polarities, as shown in FIG.
On the main generator rotating field coil 4 side, the DC output can be collectively taken out, while on the other side, connection with the exciter armature coil 5 becomes easy, as shown in FIG.

In order to cope with the centrifugal force, the main body of the rectifying element 3 is supported by the armature core 1 for the exciter, and the AC side crossover wire 6 between the rectifying elements 3 and 3 is connected to the armature coil 5 for the exciter, and The side crossover wire 7 and the input wire 8 for the main generator rotating field coil 4 are pressed against the shaft 9 with the glass bind 11 or the like via the insulating paper 10, so that the processing can be easily performed.
That is, in the direction of the rotation axis of the exciter armature core 1 depending on the polarity of the rectifying element 3, the exciter armature core coil side crossover 6 and the main generator rotation field are distributed to both sides of the through hole. The magnetic coil side crossover wire 7 is arranged.

The present invention is not limited to the above embodiment,
Various modifications are possible based on the spirit of the present invention, and they are not excluded from the scope of the present invention.

(Effects of the Invention) As described in detail above, according to the present invention, the following effects can be achieved.

(1) By fitting the rectifying element into the armature core for the exciter, the rectifying element can be easily mounted, and a rectifying element mounting tool is not required, the number of parts can be reduced, and the space can be reduced accordingly. The rotary rectifier can be made compact.

Therefore, the generator can be downsized and the price can be reduced.

(2) Since the rectifying element is accommodated in the armature core for the exciter, it is possible to prevent the rectifying element from being damaged by centrifugal force.

[Brief description of drawings]

FIG. 1 is a sectional view of an armature for an exciter of a brushless synchronous generator of the present invention, FIG. 2 is a view taken along the line AA of FIG. 1, and FIG. 3 is a view taken along the line BB of FIG. FIG. 4 is a circuit diagram of a conventional brushless synchronous generator. 1 ... Armature core for exciter, 2 ... Insulation tube, 3 ...
... Rectifier element, 4 ... Main generator rotating field coil, 5 ... Exciter armature coil, 6 ... AC side connecting wire, 7 ... DC side connecting wire, 8 ... Main generator rotating field Input wire for coil, 9
...... Shaft, 10 …… Insulating paper, 11 …… Glass bind,
ACG ... Stator, F ... Main generator rotating field coil, Rfe ...
… Rotary rectifier, EXG …… 3φ exciter armature, F ′ ……
Field coil for exciter.

Claims (1)

[Scope of utility model registration request] 1. A brushless synchronous generator in which an exciter armature core having a main generator rotating field coil and an exciter armature is arranged in parallel on the same rotating shaft, wherein: (a) the rotating shaft direction; An armature core for an exciter having a plurality of individual through-holes formed in, and (b) a rectifying element to which an insulating tube fitted in the individual through-holes is attached, (c) the rectifying In the rotating shaft direction of the armature core for the exciter according to the polarity of the element, it is distributed to both sides of the through hole, the armature core coil for the exciter coil side crossover wire and the main generator rotating field coil side crossover A rotary rectifier for a brushless synchronous generator, which is characterized by arranging a wire.