JPH04183242A - Starter/generator - Google Patents

Abstract

PURPOSE:To obtain a starter/generator, which can be mounted easily on a vehicle, by providing a driving board formed with an inclining flange part on the outer periphery thereof and a rotor core provided, on the inner periphery thereof, with a plurality of fasteners inclining similarly, thereby fastening the flange part from the end face on the engine side. CONSTITUTION:When a starter/generator A is mounted between an onboard engine 1 and a speed change gear 2, a rotor core 6 is tightened at first to the pump impeller housing 21 of the speed change gear 2. Then a stator 3 and an exciting winding 5, secured to a housing 12, are assembled into the engine 1. A driving board 4 is further fastened to the output shaft 11 of engine. After a speed change gear case 22 is assembled into the engine 1, a bolt 62 is tightened through a gap 121 thus fastening the driving board 4 and the rotor core 6. Consequently, the bolt 62 can be tightened on the engine 1 side. Furthermore, since the starter/generator A can be dismantled by simply untightening the bolt 62, inspection and repair can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a starter/generator that operates as a starter when starting an engine and as a generator after starting.

[Prior Art] Japanese Unexamined Patent Publication No. 63-202255 discloses an engine-directly connected starter/generator that integrates a starter for starting an engine and an alternator for charging a battery.

[Problems to be Solved by the Invention] However, when the above starter/generator is mounted on an automatic vehicle, when the drive plate fixed to the engine output shaft and the pump impeller housing of the transmission are connected, the transmission Although the case protrudes from the engine's cylinder body, since the excitation winding etc. are located at the joint, assembly cannot be done from the engine side and must be done from the outer periphery of the transmission. Since it is necessary to provide a seat on the outer diameter), it is difficult to mount it on a vehicle.

An object of the present invention is to provide a starter/generator that is easy to mount on a vehicle.6 [Means for Solving the Problems] In order to achieve the above-mentioned problems, the present invention provides a starter/generator that is easy to mount on a vehicle. In between, a starter/generator housing is provided to extend the case, and the starter/generator is an engine-directly connected type starter/generator disposed within the housing, with a winding wound around an iron core. a stator disposed in an annular shape on the inner wall of the housing so as to be coaxial with the engine output shaft;
a drive plate that is fixed to the engine output shaft and is provided inwardly from the stator, and has a flange-shaped portion formed on its outer periphery that slopes toward the transmission; and between the stator and the drive plate, An excitation winding disposed in the housing in an annular shape, and a plurality of fasteners having a shape surrounding the excitation winding, fixed to the pump impeller housing of the transmission, and inclined corresponding to the flange-shaped portion. a rotary iron core having a rotating iron core arranged around the inner periphery, and the flange-shaped portion and the fastening piece are arranged such that the engine side end surface of the starter/generator housing protrudes from the transmission fastening surface of the engine cylinder body. From this point of view, we adopted a configuration in which the parts are fastened using a fastening means.

[Action and effect of invention] (effect) Assemble the starter/generator as follows.

Fix the rotating iron core to the pump impeller housing. The drive plate is fixed to the engine output shaft, and the starter/generator housing containing the stator and excitation winding is assembled to the vehicle engine. Assemble the pump impeller housing and the transmission case that makes up the transmission body to the engine block via the starter/generator housing. The engine-side end surface of the starter/generator housing protrudes from the transmission fastening surface of the engine cylinder body, and by fastening the flange-shaped portion and the fastening piece using a fastening means, the drive plate is connected to the rotating iron core. It is fixed to the transmission pump impeller housing through.

(Effects) A flange-shaped portion that slopes toward the transmission is formed on the outer periphery of the drive plate, and a plurality of fastening pieces that slope in correspondence with the flange-shaped portion are provided around the inner periphery of the rotating iron core. .

Therefore, the flange-shaped portion and the fastening piece can be easily fastened using a fastening means when the engine-side end surface of the starter/housing protrudes from the transmission fastening surface of the engine cylinder body. . Furthermore, since there is no need to provide a seat on the outer diameter of the pump-in-impeller housing, the outer size of the starter/generator does not become large, making it easy to mount on a vehicle.

[Example] Next, an example of the present invention will be described based on FIG.

In FIG. 1, A is a starter/generator disposed between an on-vehicle engine 1 and a transmission 2, 11 is an engine output shaft,
21 is a pump impeller housing that is the input shaft of the transmission 2, 211 is its boss, 22 is a transmission case that protects the transmission 2, and 12 is a housing that is provided to extend the case 22 and is fixed to the engine block. , 13 is an oil pan, 121 is an oil pan 13 and a bobbin 5, which will be described later.
This is the gap between 1 and 1.

The starter/generator A includes a stator 3, a drive plate 4, and an excitation winding 5.
, and a rotating iron core 6.

The stator 3 is coaxial with the engine output shaft 11 and has an annular shape, and includes an iron core 31 having an open groove for storing windings on the inner circumferential surface, and a multiphase winding 32 wound in the groove. Become. Note that the iron core 31 is fixed to the inner wall of the housing with bolts 14.

The drive plate 4 has a disk-shaped portion 41 on its outer periphery that is inclined toward the transmission 2 , and its base is fastened to the engine output shaft 11 with a bolt 15 .
rotates with.

The excitation winding i&i5 is formed into an annular shape by winding a conducting wire around a cylindrical bobbin 51 fixed to the engine block side wall 122 of the housing 12 with a bolt 16.

The rotating iron core 6 has a substantially U-shape surrounding the excitation winding 5 and is connected to the pump impeller housing 21 with bolts 23 . Further, the rotating iron core 6 has fastening pieces 61 (a plurality of pieces) having a shape corresponding to the disk-shaped portion 41, and the disk-shaped portion 41 and the fastening pieces 61 are coupled with bolts 62.

Next, the starter/generator A is connected to the vehicle engine 1 and the transmission 2.
This section explains how to install it between the

(1) Tighten the rotating iron core 6 to the pump impeller housing 21 of the transmission 2 using bolts 23.

(2) Connect the stator 3 and excitation winding 5 with 14 and 16 bolts, respectively.
What is fixed to the housing 12 is then assembled into the engine 1. Further, the drive plate 4 is fastened to the engine output shaft 11 using bolts 15.

(3) Assemble the transmission case 22 to the engine 1 via the housing 12.

(4) Tighten the bolts 62 through the gap 121 to connect the drive plate 4 and the rotating iron core 6.

The starter/generator A employing the configuration of the present invention has the following effects.

(A) A disk-shaped portion 41 inclined toward the transmission 2 direction is formed on the outer circumference of the drive plate 4, and a plurality of fastening pieces 61 are formed on the inner circumference of the rotary core 6 and inclined corresponding to the disk-shaped portion 41. is established.

Therefore, when fastening the drive plate 4 and the rotating iron core 6 with the bolts 62, the bolts 62 can be tightened from the engine 1 side.

Further, there is no need to increase the external size or change the shape of the transmission case 22.

(a) Since the starter/generator A can be disassembled simply by loosening the bolts 62, inspection and repair can be carried out easily.

(1) The engine output shaft 11 is rotated by the on-vehicle engine 1, and the rotating iron core 6 is rotated, so the winding! Power is obtained from 32. Note that the generated power can be controlled by adjusting the current flowing through the excitation winding 5 using a voltage regulator.

(1) While passing three-phase alternating current through the winding 32, the excitation winding 5
The starter/generator A can be used as a starter by passing a current through the windings to rotate the rotating iron core 6.

The present invention includes the following embodiments in addition to the above embodiments.

a. Either or both of the flange-shaped portion of the drive plate and the fastening piece of the rotary core may have a horseshoe shape centered on the fastener.

b1 Fixing the rotating iron core 6 to the pump impeller housing 21, fixing the drive plate 4 to the engine output shaft 11, stator 3
are fixed to the housing 12 and the excitation winding 5 is fixed to the engine block side wall 122 using bolts 23, 14, 15.
In addition to 16, a method such as welding may be used.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a starter/generator in one embodiment of the present invention. In the diagram A...Starter/generator 1...Vehicle engine 2
...Transmission 3...Stator 4...Drive plate 5.
... Excitation winding 6 ... Rotating iron core 11 ... Engine output shaft 21 ... Pump impeller housing 31 ...
・Iron core 32...Winding 41...Disc-shaped part (flange-shaped part) 61...Fastening piece 62...Bolt (fastening means) 121...Gap (protruding surface) 122...・Housing side wall

Claims (1)

[Claims] 1) A starter/generator housing is provided between the transmission case and the in-vehicle engine so as to extend the case, and a starter/generator housing that is directly connected to the engine is disposed within the housing. The generator includes: a stator formed by winding a winding around an iron core and disposed annularly on the inner wall of the housing so as to be coaxial with the engine output shaft; and a stator fixed to the engine output shaft. a drive plate provided inwardly from the stator and having a flange-shaped portion formed on its outer periphery that slopes toward the transmission; and a drive plate disposed in an annular shape in the housing between the stator and the drive plate. an excitation winding; and a rotary motor having a shape surrounding the excitation winding, fixed to the pump impeller housing of the transmission, and having a plurality of fastening pieces inclined corresponding to the flange-shaped portion arranged around the inner periphery. the flange-shaped portion and the fastening piece are fastened together by fastening means from a surface where the engine-side end surface of the starter/generator housing protrudes from the transmission fastening surface of the engine cylinder body. A starter and generator that is directly connected to the engine.