WO1988006371A1

WO1988006371A1 - Starter/charger of engine

Info

Publication number: WO1988006371A1
Application number: PCT/JP1988/000129
Authority: WO
Inventors: Hiroaki; Aso
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 1987-02-13
Filing date: 1988-02-09
Publication date: 1988-08-25

Abstract

A heat-conductive seal cover (34) is fitted to the entire periphery between a transmission case (33) and a cylinder block (31) and a heat-transfer gel (35) is sealed between a resin member (32) applied to the surface of an armature winding (5) and the seal cover (34) and between the resin member (32) and the cylinder block (31) so as to radiate the heat generated by a current flowing through the armature winding (5) to the cylinder block (31) and to the transmission case (33) through this heat transfer gel (35). Therefore, it is possible to check the temperature rise and the drop of operation characteristics of the armature winding (5). A highly heat-conductive ring (37) is fitted between the transmission case (33) and the cylinder block (31) through the highly heat-conductive seal cover (34) so as to radiate the heat generated by the current flowing through the armature winding (5) to the transmission case (33) through the cylinder block (31), the ring (37) and the seal cover (34). In this manner, the same action and effect as described above can be accomplished, too.

Description

Specification

Engine starting and charging equipment '' Technical field

The present invention relates to an engine starting and charging device in which a starting motor that starts an engine and a charging generator that is driven by the engine and charges a battery are integrated. is there. Background art

An engine starting and charging device that integrates a starting motor and a charging generator has been conventionally proposed.] For example, there is Japanese Patent Publication No. Sho 61-54949.

FIG. 1 is a cross-sectional view of a conventional engine starting and charging device disclosed in Japanese Patent Publication No. Sho 61-54949. In FIG. 1, the starting and charging device main body 1 includes rotating field poles 2a and 2b, a field winding 3, an armature core 4, an armature winding 5, and a crank angle detector 6 as main elements. 0-

The pair of rotating field poles 2a and 2b are in the form of a comb made of a ferromagnetic material, and the rings of the non-magnetic material are arranged such that their magnetic pole portions are alternately arranged in the circumferential direction. 7 are integrally connected.

The rotating field pole 2a also serves as a flywheel.]), Is fitted to the crank shaft 8 of the engine (engine), and the bolt 9 Is firmly attached to the shaft end of the crank shaft 8.

At the side of the rotating field pole 2a, there is a crank angle detector 6 In combination, a notch 10 used for detecting the crank angle is formed. The notches 10 are provided at equal intervals on the circumference by the same number as the number of the rotating field poles 2a.

The circumferential width of the notch 10 is about half the angle divided by the number of notches of 360 degrees.

The rotating field poles 2 and 2b are excited by the field winding 3]. This field winding 3 is attached to the field core 11] 3.

This field iron core 11 is a bolt that is shown in the figure], and is fixed to the replate 12]], and there is a slight gap a in the axial direction with the rotating field pole 2 a. And the rotating field pole 2b is opposed via a slight gap b.

Although the field winding 3 is provided on the fixed side and the current collecting ring is omitted, the current flowing through the field winding 3 is much smaller than the current flowing through the armature winding 5. It can also be energized via electric rings and brushes.

The armature core 4 is made by laminating silicon steel sheets, and has a number of grooves on its inner periphery for accommodating the armature windings 5. The armature winding 5 is a three-phase distributed winding like a normal non-commutator motor.

The armature core 4 is fitted into the fixed frame 13 by a key (not shown).] The armature core 4 is aligned with the fixed frame and prevented from rotating. At this time, the armature core 4 is fixed to the fixed frame 13 via the spring ring 15 by the spacer 14. It is specified.

Furthermore, the fixed frame 13 is attached to the bolt 16] 9, and the fixed frame 12 is attached to the rap rate 12] 9. Rare plate 12 is attached to the engine body shown in the figure.

On the other hand, the above-mentioned crank angle detector 6 is a signal source for operating the armature current switching circuit, and here, a transmission type proximity switch is used.

This proximity switch is attached to the reprate 12 such that the detection pair faces a circumferential line provided with the notch 10 of the rotating field pole 2a. Note that the oscillation condition changes due to the inductance change in the notched portion and the non-notched portion of the rotating field pole 2a, and “1” corresponding to the crank angle (field pole position) Alternatively, it outputs a binary signal of “0”. If the motor winding 5 has three phases, three crank angle detectors 6 are installed.

The clutch 17 is designed to interrupt the transmission of power between the crankshaft 8 and the transmission drive shaft 18], and this clutch 17 is Chip disk 1 S, press plate 20, diaphragm spring (disc spring) 21, wire rings 22, 23, clutch cover It employs a wide variety of diaphragm diaphragms.

Clutch cover 22 is bolt 25]. It is attached to the rotating field pole 2a which also serves as a flywheel.

Next, the operation at the time of starting will be described. Engine stopped When the key switch (not shown) is set to the start position while the motor is in operation, a current from a battery (not shown) is applied to the field winding 3 and the armature winding 5. As a result, torque is generated in the rotating field poles 2a and 2b, thereby rotating the crank shaft 8 directly connected to the torque.

Rotating field poles turn! At the beginning, the crank angle detector 6 detects the position of the rotating field pole, and the armature current is adjusted so that the speed of the rotating magnetic field generated by the armature winding 5 becomes the same as the rotating speed of the rotating field pole. The switching circuit (not shown) is activated, and the rotating field poles 2a and 2b gain torque and further accelerate.

A strong starting torque can be obtained by such a positive feedback action, so that the engine can be started in a short time by direct drive.

Next, after the engine is started, if the key switch is set to the ignition position, the starter / charging device body 1 operates as an AC generator, and the generated power is It is converted to direct current by a diode (not shown) and supplied to the battery and electrical components in the vehicle.

As is well known, the operation of the clutch 17 is performed when the clutch pedal (not shown) is not depressed. 1 is applied to the clutch disk 19 mounted on the transmission and drive shaft 18 via the press plate 20] Then, this clutch disk 19 is crimped to the side of the rotating field pole 2a Latch 17 is connected.

When the clutch pedal is depressed, a sleeve (not shown) slides in the axial direction, and the center of the diaphragm sprig 11 is moved in the direction of arrow c. Press. For this reason, the diaphragm spring 21 reverses around the wiring rings 22 and 23 as a fulcrum, and the pressure applied to the clutch disk 19 is reduced. When released, the clutch 17 is in a disconnected state, and the power transmission between the crank shaft 8 and the transmission drive shaft 18 is cut off.

In this way, the rotating field pole 2a of the starting / charging device body 1 is directly connected to the crank axis of the engine, and the rotating field pole 2a and the crank axis 18 are also connected. The clutch 17 is also used as a carrier for the clutch 17 that connects and disconnects between the transmission mechanism 18 and the transmission mechanism 18).), The starting and charging device body 1 and the clutch 17 are integrated. It is.

In the conventional engine start charging device described above, the entire device is hermetically sealed.] 9, a large amount of frictional heat generated by opening and closing the clutch disk 19 of the clutch 17 The ambient temperature in the closed chamber is extremely high due to the large current flowing through the armature winding 5 and the resistance loss heat generated from the current flowing through the field winding 3.

However, even if cooling means such as a cooling fan are not provided, and even if provisional cooling means is installed, the cooling effect is low in a closed room, the temperature of each part may be reduced. The temperature rises remarkably, resulting in a decrease in quality in terms of heat resistance, a decrease in current in the field winding 3 in terms of performance, and a desired starting torque or Had a problem that the output current could not be obtained.

Disclosure of the invention

The present invention has been made to solve such a problem, and it is possible to suppress an increase in temperature due to resistance loss heat generated from a current flowing through an armature winding, thereby improving operating characteristics. The aim is to obtain a starting and charging device for the engine.

The engine starting and charging device according to the present invention provides a seal force mounted on an inner fitting portion of a cylinder block and a mission case. And a heat conductive material sealed in the space between the sealer and the resin block coated on the surface of the seal block and the cylinder block and the armature winding. The heat generated by the current flowing through the armature winding is dissipated to the cylindrical port through the heat transfer gel, and the heat generated by the current flowing through the armature winding is also provided. Dissipates heat to the mission case via the transmission gel and seal cover.

In addition, the engine starting and charging device according to the present invention includes a cylinder block and a mission cylinder attached to the cylinder block. The heat-conductive ring provided between the base and the surface of the ring, the cylinder block and the armature transmission line. The heat generated by the current flowing through the armature windings is provided by the heat transfer gel enclosed in the space between the body and the heat transfer gel. The generated heat is transmitted through the heat transfer gel. Radiates heat to the cylinder opening and releases it to the Mission Case via the heat transfer gel and ring. This has the effect of suppressing the temperature rise of the armature winding due to heating, thereby preventing the operating characteristics from being degraded.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross-sectional view of a conventional engine starting and charging apparatus, FIG. 2 is a cross-sectional view showing the configuration of an embodiment of the engine starting and charging apparatus of the present invention, and FIG. FIG. 4 is an enlarged cross-sectional view taken along the line ΙΠ—HI of FIG. 2, FIG. 4 is a cross-sectional view showing the configuration of another embodiment of the engine starting and charging device of the present invention, and FIG. FIG. 5 is an enlarged cross-sectional view taken along the line V-V in FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of an engine starting and charging device according to the present invention will be described with reference to the drawings. FIG. 2 is a cross-sectional view showing one embodiment of the present invention. In FIG. 2, in describing the configuration, the same parts as those in FIG. 1 are denoted by the same reference numerals, to avoid duplicating description, and mainly different parts from FIG. 1 will be described.

In FIG. 2, the following parts are different from those in FIG. That is, 31 is a cylinder block] 9, which is provided with a cooling fluid circulation system for an engine connected to a force and a radiator shown in FIG. It is designed to circulate and cool. Field cylinders 1 1 and armature cores 4 are directly attached to this cylinder block 31.

The outer peripheral surface of the armature winding 5 is coated with a resin body 32. In addition, the cylinder blocks 31 and The seal cover is fitted to the mating case 33 and the seal cover is fitted over the entire circumference.

The shell cap 34 is made of a good heat conductor such as aluminum or a copper plate. A seal 36 is provided between the seal cap 34 and the resin body 32]).

The space between the seal cover 34 and the resin body 32 coated on the surface of the armature winding 5 and the space between the resin body and the cylinder block 31 Heat transfer gels 35 with good heat conductivity are sealed in the spaces.

As this mature transfer gel 35, for example, a highly viscous oil mixed with copper powder and aluminum powder is used. As shown in FIG. 3 (cross-sectional view taken along the line ΠΙ—ΙΠ in FIG. 2), the inner peripheral surface of the cylindrical port 31 in which the heat transfer gel 35 is sealed is as shown in FIG. Fin 31a is formed. According to this fin 31a], the cylinder block 31 has a large contact area with the heat transfer gel 35 to improve the thermal conductivity.

The other parts are the same as those in Fig. 2, but in Fig. 2, the notch 10 in Fig. 1, Rhaplate 2, Fixed frame 13, Spacing 14 and Spring The components 15 and bolts 16 and 25 are omitted and omitted, and the crank angle detector 6 and the like are not shown.

Next, the operation of the present invention will be described. The starting of the engine, charging, and the operation of the clutch are described in Fig. 1. The explanation is omitted here and the armature winding

Only the cooling effect of 5 will be described.

The heat generated by the current flowing through the armature winding 5 is transmitted to the armature core 4, and at the same time, the heat of the armature winding 5 is transferred to the heat transfer gel 35 and the seal capper. The heat is transmitted to the cylinder block 31 and the mission case 33 through the line 34, where the heat is dissipated.

At the same time, the heat of the armature winding 5 is transferred from the heat transfer gel 35 to the cylinder block 31. This cylinder opening 31 has a large number of fins 31a, and has a large contact area with the heat transfer gel 35, so that the heat radiation effect is improved. ing . The heat transferred to the cylinder block 31 is absorbed by the coolant in the coolant circulation system of the engine in the cylinder block.

In this way, the heat of the armature winding 5 is transferred and radiated to the cylinder block 31 and the mission case 33 via the heat transfer gel 35. Therefore, the temperature rise of the armature winding 5 is suppressed. Along with this, it is possible to prevent the operating characteristics of the armature winding from deteriorating.

Next, another embodiment of the present invention will be described. FIG. 4 is a cross-sectional view showing the configuration of the embodiment.], And FIG. 5 is an enlarged sectional view taken along line V--V in FIG.

In FIGS. 4 and 5, the same parts as those in FIG. 1 are denoted by the same reference numerals, and the description thereof will be repeated. Avoid and focus on the differences from Fig. 1.

First, in FIG. 4, the armature core 4 and the field core 11 are both directly attached to the cylinder block 31 and the cylinder Although not shown, the under block 31 is provided with a cooling fluid circulation system for the engine that is not connected to the radiator, and the surface of the armature winding 5 is formed of a resin body. The point coated by 32 is that the seal cover 36 is provided between the seal cover 34 and the resin body 32. This is the same as the embodiment in the figure.

In addition, a ring 37 is fitted between the cylinder block 31 and the mission case 33 via the shell capacitor 3. . A good heat conductor such as copper or aluminum is used for the shell capacitor 34, and a good heat conductor such as aluminum is used for the ring 37 in the same manner.

The space between the resin body 32 coated on the surface of the armature winding 5 and the cylinder block 31, and the ring 37 and the resin body 32 are 2 and the space between the sealing member 34 and the resin body 32, the same heat transfer gel 35 as used in the embodiment of FIG. Is enclosed.

Further, as shown in FIG. 5, a number of fins 37a are provided on the inner peripheral surface of the ring 37 in which the heat transfer gel 35 is sealed. The contact area between the ring 35 and the ring 37 is increased to improve heat dissipation.

In addition, the cylindrical port in which the heat transfer gel is sealed 3 1 A fin similar to the fin 37a provided on the inner peripheral surface of the ring 37 may be provided on the inner peripheral surface of the ring 37.

The other parts are the same as in FIG. 1, except that they are configured as shown in FIG. 4, so that the fixed frames 13 and 13 in FIG. The spacers 14, bolts 16 and 25 are omitted, and the crank angle detector 6, crank shaft 8, bolt 9, notch 10, etc. are not shown. are doing.

Next, the radiating action of the heat generated by J9 due to the current flowing through the armature winding 5 will be described.

The heat generated from the armature winding 5 is radiated to the cylinder block 31 through the heat transfer gel 35. As described above, the cylinder block 31 has an engine coolant circulation system] 9 inside which the cooling from the radiator is performed. Fluid is circulating.

Therefore, the heat of the armature winding 5 transmitted to the cylinder block 31 is radiated by the coolant at the same time as the heat is radiated by the cylinder block 31, and the heat is absorbed by the coolant. The heat is dissipated together with the heat of the engine by the heater.

At the same time, the heat generated in the armature winding 5 passes through the heat transfer gel 35, the ring 37, and the seal cover 34, and the mission case 33. The heat is also dissipated. At this time, the ring 37 is provided with a large number of fins 37a, and the contact area between the ring 37 and the heat transfer gel 35 is large. Enhance the effect. In this way, the heat generated from the armature winding 5 is radiated to the cylinder block 31 and the mission case 33, so that the armature winding 5 A rise in temperature is suppressed, and a decrease in its operation characteristics is prevented. The heat generated by the field winding 3 is caused by the ripening of the armature winding 5]), but the heat of the field winding 3 is radiated to the cylinder block 31 through the field core 11. .

In the above embodiment, the bracket is also used as the cylinder block 31. However, the bracket is attached separately to the cylinder block 31. A special-purpose bracket may be provided, and the heat transfer gel 35 may be sealed in the inner peripheral portion of the bracket.

Claims

The scope of the claims

1. The rotating field poles attached to the crank shaft of the engine]), the field windings wound around the field cores for exciting the rotating field poles, and the armature core And the armature winding is coated with a resin body and the surface is coated with a resin body.When the engine is started, the field winding and the armature winding are separated from the battery. 9 is excited, the rotating field poles generate torque, rotate the crankshaft, start the engine, and after the engine starts, the generator A starting and charging device body that operates as a battery to charge the battery; a cylinder block to which the field iron and the armature core are directly attached; A heat-conductive seal cover fitted around the entire circumference between the double-block and the mission case, this seal force and the electric power A heat transfer member which is sealed between the armature winding and the cylinder block and transfers heat of the armature winding to the cylinder block and the mission case. Engine starting and charging device with

2. The engine starting and charging device according to claim 1, wherein the heat transfer gel uses a highly viscous oil mixed with copper powder and aluminum powder.

3. The engine starting and charging device according to claim 1, wherein the cylinder block has a large number of fins at a portion in contact with the heat transfer gel.

Set a seal washer between the seal force bar and the resin body. The engine starting and charging device according to claim 1, characterized in that the engine is started.

The rotating field pole attached to the crank axis of the engine], the field winding wound on the field core that excites the rotating field pole, and the armature core And the armature winding coated with a resin body on the surface]). When the engine is started, the field winding and the armature winding are separated from the battery. 9) Energized, the rotating field poles generate torque, rotate the crankshaft and start the engine, and after the engine starts, it acts as a generator. A cylinder having a starting and charging device main body that operates to charge the battery, and a cooling fluid passage for a mounting engine that directly mounts the field core and the armature core. Double block or attached brackets? And the cylinder or brackets and the missing brackets The ring of the thermal conductor attached to it through the seal of the conductor with a good conductor], and the above-mentioned cylinder block or bracket And between the ring and the armature winding, and the heat of the armature winding is transferred to the cylinder block or the bracket and the ring. Engine start and charging equipment with gel ao

The engine starting and charging device according to claim 4, wherein the heat transfer gel uses a highly viscous oil mixed with copper powder, aluminum powder or the like. . The engine starting and charging device according to claim 4, wherein the ring has a plurality of fins for increasing a contact area with the heat transfer gel.

6. The engine starting and charging apparatus according to claim 5, wherein a sealer is provided between the seal cover and the resin body.