JPS6258860A - Generating set for vehicle - Google Patents

Abstract

PURPOSE:To enable the whole device to be made smaller and lighter in weight, by forming starting coils and power generation coils on the common magnetic circuit, when the starting coils and the power generation coils are fitted on an armature. CONSTITUTION:On an armature 11, starting coils 12 and power generation coils 13 with the common magnetic circuit are fitted, and starting current service paths 14 are set. Confronting the armature 11, a field element 20 having field poles 22 is arranged, and confronting the starting current service paths 14, a brush holder 25 is arranged. On starting, an electromagnet 30 is energized, and either brush holder 25 or current service path 14 is made to slide in the axial direction, and they are put in contact with each other, and the starting coils 12 are excited to generate starting torque. After starting, the energy of the electromagnet 30 is attenuated to release the starting circuit, and the electromagnet 30 is kept rotating with driving torque from an engine.

Description

[Detailed Description of the Invention] Field of Application in the Ctll Industry) This invention is applicable to
[Regarding a vehicle power generation device n for supplying air energy.]

(Prior Art) A conventional power generation device for a vehicle has an alternating wave generator part connected to the engine crankshaft, a so-called starter motor such as a DC motor for starting the engine, and a deceleration shaft. It was assembled into a single piece in combination with a starting flange, etc.

(Problems to be Solved by the Invention) For this reason, in the conventional power generating device, the cell motor portion is located at the rear, and various parts are required, which causes the overall size of the power generating device to be increased.

Therefore, the applicant provided a starting coil and a power generating coil adjacent to the stator or rotor, and when starting by driving the magnet, a predetermined starting coil is sequentially activated as the rotor rotates. ! I! It is equipped with a starting current supply path and a contact pair of brushes that can supply current, and obtains starting torque by the attraction and repulsion force generated between the starting coil and the field pole, and after starting, the magnet is deenergized and the A generator for a vehicle in which contact between a starting current supply path and the brush is released, and electrical energy is obtained from the generator coil through engine rotation.
We are proposing a device.

In this vehicle power generation device, for example, the armature (13) includes a starting coil (12), a generating coil (13), and a starting current supply path (a starting current supply path for sequentially supplying current from a power source to a predetermined starting coil at the time of starting). 14), which is used as a stator, and the field element (20) is a magnetic field for repeating attraction and repulsion with the magnetic field formed in the starting coil (12), as well as a magnetic field for power generation in the power generation coil (13). A brush (25) is used to switch the connection between the field pole and the starting current supply path (14).
2), which is used as a rotor, and further, only at the time of starting,
The starting current supply path (14) and the brush (252
) A magnet (30) is provided on the stator side to attract the brush (252) to the stator side in order to electrically contact the brush (252).

However, in such a proposal, means are required to generate a magnetic field for repeating attraction and repulsion with the magnetic field formed in the starting coil, and a magnetic field to be supplied to the generating coil for power generation. It is desirable that a common generation means be used in the above-mentioned proposal, which originally aims to make the entire device smaller and more compact.

Therefore, this invention was made to realize such a request, and by making it possible to supply a common magnetic field to the starting coil and the generating coil by means of generating a magnetic field, the device can be made even more compact. , with the aim of turning it into a light state.

(Means for solving the problem) In order to achieve this object, the present invention provides a starting coil (1
2) an armature (
10), a magnetic field formed in the starting coil (12), a magnetic field for repeating attraction and repulsion, and the generating coil (12).
3) Field pole (22) and +
i? A field element (20) having a brush (252) for switching the connection of the starting current supply path (14) j, and a field element (20) having a brush (252) for switching the connection of the starting current supply path (14) and the brush (2
A magnet (30) is provided to drive one of the armature (10) and the field element (20) to bring them into contact with the stator, and the other is connected to the engine crankshaft (40). ), and at the time of starting, the 1111 starting coil (12) is connected to the riij field magnetic pole (2
2) Obtain starting torque by the attraction and repulsion force generated between
After starting, the +i77 magnet (30) is deenergized, the contact between the starting current supply path (14) and the brush (252) is released, and the starting coil (13) is turned off by engine rotation.
), the starting coil (12) and the generating coil (13) are formed in a common magnetic circuit.

(Embodiments of the Invention) Hereinafter, the present invention will be described in detail 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 armature which is the stator, (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 (10) is provided with a plurality of starting coils (12) on the outermost circumference of the 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 FIG.
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 generator coil (12) is installed so that the starter coil (12) can act as a generator coil.
3) may be connected in series or in parallel. Generator coil (
A starting current supply path (14), a part of which is shown in FIG. 4, is arranged inside the starting current supply path (13).

This starting current supply path (14) includes a first conductive path (141) continuous in a circumferential manner, and a second conductive path (142) continuous in a circumferential manner on the outside of this conductive path (+41). , and connection separation paths (third conductive paths) (143
). The first conductive path (141) is connected to the negative pole of a power source (vehicle battery) (90), and the second conductive path (142) is connected to the positive pole of the power source (90). The connection of the power source (80) to this starting current supply path (14) is through a bottle (
This is done by inserting the adapter plug (80) into (148) and (147). The relationship between the bottles (14B), (+47) and the plug (80) is as shown in FIGS. 5(a) and 5(b). Bin (148) of starting current supply path (14)
, (147), the stopper receiver is formed with a member (+49). This member (149) and the surrounding plug holder portion can be integrally molded with plastic together with the insulating plate of the power supply path (14). Adapter plug (
80), as shown in FIG. 5, slots (81) and (82) for receiving the bottles (+46) and (1, 47) are formed in the main body block made of plastic, for example. In (81) and (82) are the bottles (
A conductive sleeve receiving terminals (84), (+47) is inserted, and its ends are connected to terminals (84), (85).
). Connect power lines to these terminals (84) and (85). Also, next to one main block, a stopper (83) is integrally formed of the same plastic material as the block, and the plug (80) is connected to the bottle (146),
(147), the stopper (83) and the stopper receiver are fitted with the member (+49), and the adapter plug (80) is firmly connected to the starting current supply path (14).

Such a starting current supply path (!4) can be manufactured by forming a conductive thin film on a thin insulating substrate using, for example, printed circuit board technology.

The rotor (20) has eight magnetic poles (22) arranged at regular intervals inside a standing portion (21A) of a cup-shaped frame (21). In this embodiment, the magnetic pole (22) is a permanent magnet, but it may also be a TL magnet, and the polarity of the magnetic pole (22) is arranged so that S-N alternates toward the inside. A flange cap (23) for receiving an engine crankshaft (40) is fixed to the center portion of the frame (2I) with a lever or the like. A rotor shaft (24) that is connected to the crank shirt 1-(40) and rotates is inserted through this flange cap (23).
4) is supported at its terminal end by a bearing (113) provided on the cover frame (15) of the power generator that supports the stator (lO).

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 provided slidably over a predetermined distance in the direction of the shaft (24), and a brush holder driving gear (26) is provided (, +
II has been established. A coil spring (27) biases between the brush holder (25) and the driving gear (26). A 71i magnetic magnet (30) is placed between the brush holder drive gear (26) and the bearing (16), but this magnet (30) does not rotate. However, it may be rotated.

The configuration around the brush holder (25) is shown in Figures 4 and 6.
As shown in the figure. That is, the brush holter (25) made of a magnetic material fixed to the shaft (24) has coil springs (253) arranged and fixed symmetrically along the circumference.
) supports the ring-shaped brush brake 1- (251). A plurality of brushes (252) are fixed to the negative side of the brush plate (251).

The brush plate (251) has a tl′ti motion
The first conductive path (141) and the third conductive path (141) of the fli supply path (14)
Eight brushes (252A) connecting the conductive path (+43) and brushes (252B) connecting the second conductive path (142) and the third conductive path (143) are arranged in an intersecting arrangement. ing. The material of the brush (252) is similar to that of a normal rotating electric motor, and has a predetermined electrical conductivity. The coil spring (253) connects the brush (252) and the starting current supply path (1
4) It is intended to provide a suppressive force to ensure firm contact with the

Around the brush holder (25) (24),
The gear that meshes with the brush holder drive gear (26) (
259) is one sink. When the brush holder (25) is attracted against the force of the spring (27) by the excitation of the magnet (30), this gear (258) engages with the brush play 1 drive gear (26) and makes one rotation. The counterclockwise rotation of the child is removable. At this time, use the brush (
252) and each conductive path (+41), (1, 42), (14
3) comes into contact with. @When the magnet (30) is deenergized, the coil spring (27) is extended, and the brush (252) and each conductive path (141), (142)
, (143) is released.

A starting coil (12) and a conductive path (141) as shown below.

(1,42), (+43), brush (252A),
Electrical connection of (252B) and field pole (22)
The blue distribution relationship with this is as shown in FIG. 7, and if a part of this is illustrated in a linear relationship, it is as shown in FIG.

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 h (30) is excited.

Therefore, the brush (252) is connected to the starting radio wave supply path (14).
conductive paths (141), (142), and (143). That is, conductive paths (141), (142), (
143) and the brush (252), a current flows in each starting coil (12) in a predetermined direction.

For example, the conductive paths (141), (1
42).

(+43) as shown in Figure 7, the current flows from the brush (252B) to the brush (252B).
A) through each starting coil (12). Therefore, the magnetic field formed in the starting coil (12) changes from the N pole to the S pole.
It will be shown by the arrow pointing towards the pole. The magnetic field of the field magnet (22) is constant, again as shown by the arrow. Therefore, the coil (12) facing each magnetic pole (22), for example, the coil (+2A) facing the magnetic J4i (22A)
.

(12B) and (+, 2c:') form one attractive force and two repulsive forces in order from the left. Therefore, one rotor (2
0) rotates, and the brush (252) itself rotates accordingly. Therefore, the brush (252) moves to the next magnetic pole position, and the conductive paths ('+41), (+42), (+4
3) Switch the connection. Therefore, +i? The relationship of attraction and repulsion in step 4 is reversed, and the rotor rotates in the same way. In this way, the primary brush (252) rotates and switches the connection of the starting coil (12), thereby starting the starting coil (12).
2) and the field pole (22), attraction and repulsion occur continuously, and the rotor 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 (+41) and (+42) are demagnetized.

(+43) The contact with the brush (252) is released, but the engine continues to rotate because it has already been started.

This invention is not limited to the embodiments and modifications described below, and various embodiments and modifications are possible within the scope of the technical idea of this invention, for example, a stator and a rotor. The relationship between the armature and the field element may be determined by practical convenience. Further, the contact and release of the conductive path of the starting current forming path and the brush can also be performed not by the attractive force of the magnet 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.

(Effect of Generator 1) According to the present invention, as described above, the starting coil and the generator coil are provided in one magnetic circuit so that the magnetic field generated by the common field element can be used. [The device can be made even smaller and lighter.

According to this embodiment, the following effects are achieved.

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

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

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

[Brief explanation of drawings]

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 the drawing, (lO) is the armature, (12) is the starting coil,
(13) is the generator coil, (14) is the starting current supply path, (
20) is a field element, (22) is a field pole, and (25) is a brush holder. (30) is the TrL magnet, (40) is the crankshaft, (90) is the power supply (battery), (+41
), (142). (143) is a conductive path, (251) is a brush plate, (
252) is a brush. Figure 1] 2 Figure 3 W each coil Figure 5 Figure 10 Figure 8 Figure 6

Claims (1)

[Scope of Claims] An armature having a starting current supply path for sequentially supplying current from a power source to a starting coil, a generating coil, and predetermined starting coils at the time of starting, and a magnetic field formed in the starting coil and attraction and repulsion. a field element having a brush for switching the connection of the starting current supply path and a field pole for supplying a magnetic field for repeating a magnetic field and a power generation magnetic field of the power generation coil; a magnet that drives either one of the armature and the field element to bring them into contact, one of the armature and the field element is a stator, the other is a rotor connected to the crankshaft of the engine, and when starting, the starting coil is connected to the field pole. Starting torque is obtained by the attraction and repulsion force generated between the engine and the motor, and after starting, the magnet is deenergized, the contact between the starting current supply path and the brush is released, and electrical energy is obtained from the generator coil by engine rotation. A vehicle power generating device according to the present invention, wherein the starting coil and the generating coil are formed in a common magnetic circuit.