JPS6258857A - Generating set for vehicle - Google Patents

Abstract

PURPOSE:To obtain the miniature and light-weight device of high reliability, by a method wherein on an armature, starting coils are fitted and three concentric-circle-formed starting current service paths are arranged, and wherein a brush is put in contact with the paths on starting only, and wherein the starting coils are excited to obtain starting torque. CONSTITUTION:On an armature 11, starting coils 12 and power generation coils 13 are fitted, and starting current service paths 14 are arranged. The starting current service paths 14 are formed with two concentric-circle-formed conductive sections connected to each pole of a power source, and with the third conductive section connected to the starting coils 12. On a field element 20 having field poles 22, a brush holder 25 is fitted slidably in the axial direc tion, and confronting the holder 25, an electromagnet 30 is set. On starting, the electromagnet 30 is energized, and a brush is put in contact with the starting current service paths 14, and the starting coils 12 are excited to obtain starting torque, and after starting, the energy of the electromagnet 30 is attenuated, and the magnetism of the starting coils 12 is attenuated, and driving torque is obtained from an engine.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vehicle power generation device for supplying electrical energy required by vehicles such as motorcycles and automobiles.

(Prior Art) Conventional vehicle power generators include an alternating current generator connected to the engine crankshaft, a so-called starter motor such as a direct current motor for starting the engine, and a reduction shaft and a starting clutch. It was assembled into a single unit.

(Problems to be Solved by the Invention) For this reason, in the conventional power generating device, the starter motor portion is located at the rear, and various parts are required, which causes the entire power generating device to become larger.

Therefore, it is an object of this sixth invention to provide a small, lightweight, and highly reliable power generation device for a vehicle.

(Means for solving the problem) In order to achieve this object, according to the present invention, a starting coil and a generating coil are provided adjacent to a stator or a rotor,
A starting current supply path and a contact pair of brushes are provided so that starting IL current can be sequentially supplied to predetermined starting coils as the rotor rotates during starting by driving a magnet, and the current is generated between the starting coil and the field pole. Starting torque is obtained by attraction and repulsion force, and after starting, the magnet is deenergized, contact between the starting current supply path and the brush is released, and electrical energy is obtained from the generating coil through engine rotation.

For example, according to an embodiment of the invention, the armature (10) is a stator, and the starting coil (12) and the generating coil (
13), and the starting current supply path (14) provided on the armature (10) side includes concentric first and second conductive paths (141) connected to various types of the power source (90). , (14
2) and a third conductive path (+43) connected to the starting coil (12).

The field element (22) also includes a field pole (2) that supplies the magnetic field formed in the starting coil (12), a magnetic field for repeating attraction and repulsion, and a magnetic field for power generation of the power generating coil (13).
2) to form a rotor, and this field element (20) is in contact with the starting current supply path (14) and has the first and third
The brush (2) connects the conductive paths (141) and (142) of
52^) and brushes (252B) connecting the second and third conductive paths are arranged alternately (252).
is provided.

Then, on the stator side, a magnet (30 ) has been established.

(Embodiments of the Invention) The present invention will be described in detail below with reference to the accompanying drawings. The same reference numerals in each figure indicate similar objects.

FIG. 1 is a longitudinal sectional view of a power generation device according to an embodiment of the invention.

In the figure, (10) is the stator armature, (20
) is a field element which is a rotor, (30) is a magnet for driving brushes of the rotor (20), and (40) is a crankshaft of the engine.

As shown in FIGS. 2 and 3, the stator (lO) is provided with a plurality of starting coils (12) on the outermost circumference of a disk-shaped yoke frame (11). 1
2) is equipped with a power generation coil (13) inside. That is, both coils (12) and (13) are arranged in series in a common magnetic circuit. The starting coil (12) has fewer turns than the generating coil (13), but has more turns.For example, for each of the eight magnetic poles shown in Figure 3, two starting coils (12) and one Generator coil (1
3) corresponds. Moreover, one starting coil (12) is located between the magnetic poles. Each starting coil (12
) are connected in series via a separation path for connecting a starting current supply path (14), which will be described later, and a predetermined starting coil (12) is connected to a power source of a predetermined polarity by a brush, which will be described later.

The power generation coil (13) can be arbitrarily connected as required. After starting, the starting coil (12) is activated.
It may be connected in series or in parallel with the generator coil (13) so that it can act as a coil. A starting current supply path (14), a part of which is shown in FIG. 4, is arranged inside the generator coil (13).

This starting current supply path (14) is a first continuous
A conductive path (141), a second conductive path (142) that continues circumferentially on the outside of this conductive path (141), and a second conductive path (142) that extends outside this second conductive path (142) at intervals along the circumference. It has a connection separation path (third conductive path) (143) arranged. The first conductive path (141) is connected to the negative electrode of the power source (vehicle battery) (90), and the second conductive path (
142) is connected to the positive terminal of the power source (90). The connection of the electric fi (90) to this starting current supply path (14) is through the pins (1413) extended under the conductive paths (141) and (142), and the adapter plug (80) connected to (147).
This is done by inserting . This pin (14B), (14
7) and the plug (80) are shown in Figure 5(a) and (
As shown in b). A stopper receiver member (149) is formed in parallel with the pins (14B) and (147) of the starting current supply path (14). This member (149) and the surrounding plug holder portion can be integrally molded in plastic together with the insulating plate of the power supply path (14). As shown in FIG. 5, the adapter plug (80) has a pin (146),
Slots (81), (82) for receiving (+47)
are formed, and these slots (81) and (82)
A conductive sleeve that receives the pins (14B) and (147) is inserted into the terminal, and the end thereof is connected to the terminal (aa).
, (85). This terminal (84),
Connect the power line to (85). Also, next to the main block, a stator/bar (83) is integrally formed of the same plastic material as the block, and when the plug (80) is combined with the pins (14B) and (147), this stator/bar (83) (Ell) and the stopper receiver are fitted with the member (149), and the adapter plug (80) is firmly connected to the starting current supply path (14) side.

Such a starting current supply path (14) can be manufactured by forming a conductive thin film on an insulating thin substrate, for example using printed circuit board technology.

The rotor (20) has eight magnetic poles (
22) is located. In this embodiment, the magnetic poles (22) are permanent magnets, but they may also be electromagnets, and the polarities of the magnetic poles (22) are arranged so that S-N intersect toward the inside. A flange cap (23) for receiving an engine crank shirt h (40) is fixed to the center of the frame (21) with rivets or the like. A rotor shaft (24) that is connected to the crankshaft (40) and rotates is inserted through this flange cap (23), and this shirt h (24) is a cover of the power generation device that supports the stator (10). flame(
The terminal end is supported by a bearing (16) provided in 15).

This shaft (24) has the above-mentioned starting current supply path (1
A brush holder (25) equipped with a brush that can come into contact with
) is slidably provided over a predetermined length in the direction (24), and a brush holder driving gear (28) is fixed thereto. Brush holder (25) and drive gear (2
6) is biased by a coil spring (27). Brush holder drive gear (26) and bearing (
An electromagnetic magnet (30) is placed between the parts 16) and 16), but this magnet (30) does not rotate, although it may rotate.

The surrounding structure of the brush holder (page 25) is shown in Figures 4 and 6.
As shown in the figure. That is, the brush holder (25) made of a magnetic material fixed to the shaft (24) has coil springs (253) arranged and fixed symmetrically along the circumference.
) supports a ring-shaped brush plate (251). Brush Brake) A plurality of brushes (252) are fixed to the negative side of (251).

The brush plate (251) has a starting current supply path (14).
) the first conductive path (141) and the third conductive path (143)
A brush (252A) connecting the second conductive path (1
42) and the third conductive path (143).
252B) are arranged alternately. Brush (2
The material of 52) is the same as that of a normal rotating electric motor, and has a predetermined electrical conductivity. The coil spring (253) is for applying a pressing force to firmly bring the brush (252) into contact with the starting current supply path (14).

Around the shaft (24) of the brush holder (25), there is a gear (2) that meshes with the brush holder driving gear (2B).
59) is provided. This gear (259) meshes with the brush plate drive gear (26) when the brush holder (25) is attracted against the force of the spring (27) by the excitation of the magnet (30). Allows rotation in a counterclockwise direction. At this time, the brush (252
) and each conductive path (141), (142), (143) are in contact with each other. When the electromagnetic magnet (30) is deenergized, the coil spring (27) is extended, and the brush (252) and each conductive path (141), (142), (1
Contact with 43) will be terminated.

The starting coil (12) and the conductive path (141) as described above.

(142), (143), brush (252A), (
252B) and the positional relationship with the field pole (22) are shown in FIG. 7, and if a part of this is illustrated in a linear relationship, it is as shown in FIG. 8.

Next, the operation of this embodiment will be explained with reference to FIG.

When a starter switch (not shown) is operated to start the engine, the voltage of the battery (90) is applied to the device and the electromagnetic magnet (30) is excited.

Therefore, the brush (252) is connected to the starting current supply path (14).
conductive paths (141), (+42), and (+43). That is, conductive paths (+41), (142), (1
43) and the brush (252), a current flows in each starting coil (12) in a predetermined direction.

For example, the conductive paths (141), (1
42) and (143) as shown in FIG. 7, current flows through each starting coil (12) from the brush (252B) to the brush (252A). Therefore, the magnetic field formed in the starting coil (12) is N
This is indicated by an arrow pointing from the pole to the south pole. Field magnet (
The magnetic field of 22) is constant and is also shown by the arrow. Therefore, the coil (12) facing each magnetic pole (22)
), for example, the coil (+2A, ) facing the magnetic pole (22A, )
).

(12B) and (12G) form one attractive force and two repulsive forces in order from the left. Therefore, one rotor (20
) rotates, and the brush (252) itself rotates accordingly. Therefore, the brush (252) moves to the next magnetic pole position, and at the same time conductive paths (141), (142), (143)
) connection. Therefore, the above-mentioned relationship of attraction and repulsion is reversed, and the rotor rotates in the same way. In this way, the brush (252) sequentially rotates, and by switching the connection of the starting coil (12), attraction and repulsion occur continuously between the starting coil (12) and the field pole (22), making one rotation. The child rotates continuously.

In this way, when the starter switch is opened due to the completion of engine starting, the electromagnetic magnet (30) is demagnetized, and the conductive paths (141) and (+42) are demagnetized.

(143) and the brush (252) are released from contact, but the engine continues to rotate because it has already been started.

This invention is not limited to the above embodiments and modifications, and various embodiments and modifications are possible within the scope of the technical idea of this invention. For example, the combination of a stator and a rotor The relationship may have either an armature or a field element and should be determined by practical convenience. Further, contact and release of the conductive path of the starting current forming path and the brush may also be performed not by the attractive force of the electromagnet but by the repulsive force. Of course, the number of brushes in terms of the number of magnetic poles and the like is not limited to eight.

(Effects of the Invention) According to the present invention, as described above, the starting coil and the generating coil are provided in one magnetic circuit, and the starting current supply path in which the Jfi connection of the starting coil to the power source is provided concentrically, and By sequentially switching and obtaining rotational torque through the cooperation of the sliding brushes, it is possible to obtain a power generation device for a vehicle that exhibits the following effects.

(1) The starting part and the power generation part are integrated, eliminating the need for parts such as a reduction shaft and a starting clutch, making it possible to significantly downsize the power generation device.

Significant stabilization of quality is expected.

(2) Starting and power generation are performed by a common rotating shaft, and this shaft is directly connected to the crankshaft, resulting in good starting efficiency.

(3) After starting, the contact between the brushes is released.

Brush wear is significantly reduced and brush maintenance is virtually unnecessary.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a power generation device according to an embodiment of the present invention;
FIGS. 2 to 4 are explanatory diagrams of essential parts of an embodiment of this invention, FIGS. 5 and 6 are explanatory diagrams of other essential parts of this invention, and FIG. 7 is a structural element of an embodiment of this invention. The electrical system diagram in FIG. 8 is an explanatory diagram of the operation of the embodiment of the present invention. In addition, (10) in one drawing is the armature, (12) is the starting coil,
(13) is the generator coil, (14) is the starting current supply path, (
2o) is a field element, (22) is a field pole, and (25) is a brush holder. (30) is an electromagnetic magnet, (40) is a crankshaft, (90) is a power source (battery), (141)
, (142). (+43) is a conductive path, (25+) is a brush plate, (
252) is a brush. 4 yen Applicant: Honda Motor Co., Ltd. Agent Patent Attorney 2 1) Yong-Immediate Questions Patent Attorney Kuni Ohashi Bulk Patent Attorney
Yuki Koyama Patent Attorney No 1)
Figure 1 Co2 3rd factor W Each coil Figure 5 Figure 10 Figure 8 Figure 6

Claims (4)

[Claims] (1) An armature having a starting coil and a generating coil; concentric first and second conductive paths provided on the armature side and connected to each pole of the power source; and a first and second conductive path connected to the starting coil. a field element having a field pole that supplies a magnetic field formed in the starting coil, a magnetic field for repeating attraction and repulsion, and a magnetic field for power generation of the power generating coil; provided in the magnet and in contact with the starting current supply path;
A brush formed by alternately arranging brushes connecting the first and third conductive paths and brushes connecting the second and third conductive paths; and the starting current supply path and the brush are brought into contact only at the time of starting. one of the armature and the field element is a stator, the other is a rotor connected to the crankshaft of the engine, and the starting coil is connected to the field pole at the time of starting. The starting torque is obtained by the attraction and repulsion force generated during the start, and after starting, the magnet is deenergized and the contact between the starting current supply path and the brush is released, and electrical energy is obtained from the generating coil by engine rotation. Vehicle power generator. (2) In the device according to claim 1, a pin connected to the first and second conductive paths of the starting current supply path is provided on the back side of the first and second conductive paths, and this pin is connected to the adapter plug. A power generation device for a vehicle, characterized in that it is connected to a power source via a power source. (3) A power generating device for a vehicle according to claim 1 or 2, wherein the starting coil and the generating coil are formed in a common magnetic circuit. (4) A vehicle power generation device according to any one of claims 1 to 3, wherein the rotor is directly connected to a crankshaft of an engine.