JP2005220755A - Auxiliary drive engine starter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an auxiliary drive engine starter which is excellent in the engine mountability. <P>SOLUTION: Rotating shafts 31, 71 are inserted from both sides in the axial direction into a hollow rotating shaft 54 which is fitted in a rotor 53 of an electric motor 5. One-way clutch 4 is housed between the rotating shafts 54 and 31, and one-way clutch 6 between the rotating shafts 54 and 71. The rotating shaft 31 outputs the torque to the engine side with the counterclockwise rotation of the rotating shaft 54 and the rotating shaft 71 drives a compressor 7 with the clockwise rotation of the rotating shaft 54. Consequently, the axial length is prevented from increasing, and the auxiliary drive engine starter which is simple in structure can be implemented. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an accessory-driven engine starter that can independently execute accessory drive and engine start. The accessory-driven engine starter of the present invention is applied to an accessory-driven engine starter that starts an engine by an electric compressor driven by a battery when the engine is stopped, for example.

  In recent years, since it is necessary to improve the fuel consumption of an internal combustion engine, it has an idle stop system that stops the internal combustion engine (engine) when the vehicle stops and an electric motor in addition to the engine. Hybrid drive systems that run by force have been put into practical use. In these systems, it is usual to provide an electric motor that operates a compressor for an air conditioner by battery power when the engine is stopped.

  In Patent Document 1 below, one end of a rotating shaft of a compressor driving motor is connected to an engine via a first clutch, and the other end of the rotating shaft of the compressor driving motor is connected to an air conditioner compressor via a second clutch. By doing so, it is proposed that the air conditioner compressor can be electrically driven even when the engine is stopped, and the engine is started by the compressor drive motor.

Patent Document 2 below discloses that a compressor driving motor for driving an air conditioner compressor is connected to an engine via an electromagnetic clutch so that the air conditioner compressor is electrically operated when the electromagnetic clutch is off, and the compressor driving motor is operated when the electromagnetic clutch is on. Has proposed an electric motor device for driving a compressor that starts the engine.
JP 2001-298803 A JP 2002-205536 A

  However, in the apparatus of the above publication, since the motor, the auxiliary machine, and the clutch mechanism for controlling the connection state thereof are arranged in a line in the axial direction, the axial length of the apparatus is the sum of the axial lengths of the respective apparatuses. As a result, the mountability in the engine room is significantly reduced. Reduction in the volume of the engine room is a major factor in vehicle design, and it has been difficult to practically adopt a scheme for accommodating such a long system in the vicinity of the engine.

  In addition, the clutch mechanism for disconnecting the auxiliary machine in the mode for exclusive use of the motor for the engine and for disconnecting the torque transmission system to the engine in the mode for exclusive use of the auxiliary motor for the motor becomes complicated and expensive. There were few merits compared with the case where the auxiliary machine was driven by a dedicated motor.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and improves the vehicle mountability of an electric auxiliary device capable of starting an engine and facilitates accommodation in the vicinity of the engine. The purpose is to provide.

  In order to solve the above-mentioned problems, an auxiliary drive type engine starter according to the present invention includes an electric motor that starts an engine, an input rotary shaft that receives rotational force from the electric motor, and a rotational force that is output to the engine side. A reduction mechanism disposed on one end side of the rotation shaft of the electric motor having an output rotation shaft, an auxiliary device disposed on the other end side of the rotation shaft of the electric motor, and an output of the electric motor of the reduction mechanism A starter with an accessory drive function, comprising: a reduction gear joint mechanism that transmits intermittently to an input rotary shaft; or an auxiliary machine joint mechanism that transmits intermittently the output of the electric motor to the rotary shaft of the auxiliary equipment The reduction gear joining mechanism or the auxiliary machine joining mechanism is housed inside the stator in the radial direction of the electric motor.

  As used herein, the joining mechanism refers to a clutch mechanism that can control transmission and interruption of torque. The fact that the joining mechanism is accommodated inside the stator in the radial direction also means that the joining mechanism does not protrude outward in the axial direction from the stator coil ends on both sides of the stator core.

  According to the present invention, the auxiliary machine is separated from the electric motor when the engine is started, and torque transmission from the electric motor to the engine can be cut off when the auxiliary machine (preferably an air conditioner compressor) is driven. Can do. In addition, the necessary joint mechanism is housed inside the electric motor, so the shaft length of the auxiliary drive engine starter can be significantly reduced compared to the conventional, compact, and easy to install accessory. A drive type engine starter can be realized.

  Preferably, both joint mechanisms start the engine through the speed reduction mechanism without driving the auxiliary machine, and drive the auxiliary machine without driving the engine.

  In the preferred embodiment 1, the speed reducer joining mechanism or the auxiliary machine joining mechanism is accommodated inside the rotor of the electric motor in the radial direction. Thereby, further downsizing can be realized.

  In the preferred embodiment 2, the speed reducer joint mechanism or the auxiliary machine joint mechanism is accommodated in a hollow hole formed in the rotor shaft to which the rotor core of the motor is fitted. Easy to accommodate. More specifically, the required depth of the rotor core from the outer peripheral surface of the rotor core to the inside in the radial direction does not need to be so large, and the inner peripheral diameter of the rotor core (the outer diameter of the rotor rotating shaft) is increased within a range that allows magnetic flux formation. Can. In particular, in a synchronous motor, since the change of the magnetic flux flowing in the radially inner portion of the rotor core is small, for example, by increasing the permeability of the rotating shaft, the rotating shaft itself can be effectively used as the magnetic path of the rotor core.

  In the preferred embodiment 3, since both the reduction gear joining mechanism and the auxiliary machinery joining mechanism are accommodated in the hollow hole formed in the rotor shaft on which the rotor core of the electric motor is fitted, the axial length is further reduced. Is possible.

  In a preferred aspect 4, the speed reducer joining mechanism or the accessory joining mechanism is composed of a one-way clutch whose joining direction is reversed, and the electric motor is operated when the engine is started and when the accessory is driven. Rotate in the opposite direction. Thereby, it is possible to simplify the splicing mechanism that needs to be added as compared with the case where a plurality of motors are used, and it is possible to fully utilize the merit of reduction in size and weight by saving the number of motors. This aspect is particularly suitable when an air conditioning compressor that can be stopped when the engine is started and needs to be driven even when the engine is stopped is used as an auxiliary machine.

  In a preferred aspect 5, the speed reducer joint mechanism is disposed in a radial gap between the input rotation shaft of the speed reducer joint mechanism inserted into the hollow hole from one end side and the rotor shaft, and The machine joint mechanism is disposed in a radial gap between the rotating shaft of the auxiliary machine and the rotor shaft inserted into the hollow hole from the other end side. Thereby, the structure can be further simplified.

  In the preferred embodiment 6, the output rotation shaft of the speed reduction mechanism is connected to the pulley through a pulley clutch that is a one-way clutch. As a result, the speed reduction mechanism is not driven during normal rotation of the engine, and power loss can be reduced.

  In the preferred embodiment 7, since at least a part of the speed reduction mechanism is accommodated inside the pulley in the radial direction, further reduction of the axial length can be realized.

  In the preferred embodiment 8, the reduction gear output shaft is supported on the housing through a bearing accommodated inside the pulley in the radial direction, so that further reduction of the shaft length can be realized.

  In the preferred embodiment 9, since the bearing that supports the output shaft of the reduction gear is located inside the pulley clutch and accommodated inside the pulley in the radial direction, further shortening of the shaft length can be realized. . Further, the bending moment of the reduction gear output shaft due to the belt tension can be reduced.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an auxiliary drive type engine starter according to the present invention will be described below with reference to the drawings. However, the present invention is not limited to this embodiment. For example, an electric motor (motor) for starting the engine may be operated as a generator driven by the engine.
(Example 1)
FIG. 1 shows a schematic block diagram of an accessory-driven engine starter according to the first embodiment.

  The auxiliary drive type engine starter A is configured by sequentially connecting a pulley 1, a one-way clutch 2, a speed reduction mechanism 3, a one-way clutch 4, an electric motor 5, a one-way clutch 6, and a compressor 7 for an air conditioner. The one-way clutch 2 is disposed between the pulley 1 and the speed reduction mechanism 3, the one-way clutch 4 is disposed between the speed reduction mechanism 3 and the electric motor 5, and the one-way clutch 6 is disposed between the electric motor 5 and the compressor 7. . The torque transmission direction of the one-way clutches 2, 4, 6 is shown by arrows in FIG.

  Reference numeral 8 denotes an engine, and a crank pulley 9 of the engine 8 is connected to the pulley 1 by a belt 10. Reference numeral 11 denotes a battery that feeds power to an inverter 13 controlled by the control device 12. The inverter 13 converts DC power received from the battery 11 into, for example, three-phase AC power, feeds the motor 5, and drives the motor 5. .

  The speed reduction mechanism 3 is a planetary speed reduction mechanism, and includes an input rotary shaft 31 protruding toward the electric motor 5, a sun gear 32 attached to the input rotary shaft 31, an internal gear 33 fixed to a housing (not shown), a sun gear 32, and an inter gear A planetary gear 34 that meshes with the null gear 33 and rotates planetarily, and a planetary gear pivotally supporting shaft 35 that protrudes toward the speed reduction mechanism 3 and rotatably supports the planetary gear 34 is provided. Therefore, the one-way clutch 2 is disposed between the pulley 1 and the rotating shaft 35, and the one-way clutch 4 is disposed between the input rotating shaft 31 and the electric motor 5.

The operation of this auxiliary drive type engine starter A will be described below.
[Engine starting operation]
When the electric motor 5 is rotated in one direction (for example, clockwise), the rotational force, that is, torque is input to the speed reduction mechanism 3 through the one-way clutch 4, and after being decelerated by the speed reduction mechanism 3, the crank pulley through the pulley 1 and the belt 10. 9 and the engine 8 is started. At this time, the one-way clutch 6 is in an open state, and the electric motor 5 does not drive the compressor 7 when the engine is started. When the power supply to the electric motor 5 is stopped after the engine start is completed, the engine 8 tries to drive the electric motor 5 through the pulley 1, the one-way clutch 2, the speed reduction mechanism 3, and the one-way clutch 4. Since the open state is established, the reduction mechanism 3 and the electric motor 5 are driven and the electric motor 5 is prevented from overrunning.
[Electric compressor operation]
When the electric motor 5 is rotated in the other direction (for example, counterclockwise) when the engine is stopped, the rotational force, that is, torque is transmitted to the compressor 7 through the one-way clutch 6, and the compressor 7 is electrically driven. At this time, the one-way clutch 4 is opened because the rotation direction is opposite to the torque transmission direction, and the electric motor 5 does not drive the engine through the speed reduction mechanism 3.
[Engine start-up operation from auxiliary drive state]
In order to start the engine while the compressor 7 is driven by the electric motor 5 described above, the electric motor 5 is first stopped, and then the electric motor 5 is rotated in the reverse direction to perform the engine starting operation described above.
(Modification)
In the above-described embodiment, two one-way clutches 2 and 4 having the same torque transmission direction are separately provided on both sides of the speed reduction mechanism 3 between the electric motor 5 and the engine 8. As a result, when the engine 8 tries to drive the electric motor 5 after the start of the engine 8 is completed, the one-way clutch 2 is released to prevent the speed reduction mechanism 3 from rotating and the electric motor 5 drives the compressor 7. In this case, the one-way clutch 4 can be released to prevent the speed reduction mechanism 3 from rotating. Therefore, the speed reduction mechanism 3 is driven during normal engine rotation and during operation of the electric compressor, and problems such as unnecessary friction loss, wear, and heat generation do not occur. Of course, one of the one-way clutches 2 and 4, for example, the one-way clutch 4 can be omitted.
(Modification)
In the above embodiment, the internal gear 33 is fixed to a housing (not shown). However, the internal gear 33 may be fixed to the housing through a one-way clutch (referred to as a one-way clutch with an internal gear). . In this case, the one-way clutch 2 or 4 can be omitted.

That is, the motor 5 rotates, for example, clockwise, the one-way clutch 6 is released, the one-way clutch with an internal gear is engaged and fixed to the housing, and the torque of the motor 5 is reduced to the speed reduction mechanism 3 and the pulley. 1 to the engine 8. For example, the electric motor 5 rotates counterclockwise, and the one-way clutch 6 is engaged, and the electric motor 5 drives the compressor 7. At this time, the internal gear 33 is in an idle state, so the pulley 1 is not driven.
(Example 2)
FIG. 2 shows a schematic block diagram of an accessory-driven engine starter according to the second embodiment.

  This auxiliary machine drive type engine starter B has an auxiliary gear drive type engine starter A shown in FIG. 1 fixed to a housing (not shown) for rotating the planetary gear 34 so as to rotate freely. It is connected to the pulley 1 through the one-way clutch 2. Reference numeral 36 denotes a bearing which is supported by the housing and rotatably supports the rotary shaft 35.

The operation of the auxiliary drive type engine starter B is essentially the same as that of the auxiliary drive type engine starter A shown in FIG. 1 except for the speed reduction ratio of the speed reduction mechanism 3.
(Example 3)
FIG. 3 shows an embodiment in which the accessory-driven engine starter B of the second embodiment is embodied. In FIG. 3, most of the hatching for displaying the cross section is omitted for easy understanding of the structure.

(overall structure)
The auxiliary drive type engine starter B has a pulley 1, a one-way clutch 2, a speed reduction mechanism 3, a one-way clutch 4, an electric motor 5, a one-way clutch 6, and a compressor 7 for an air conditioner. The one-way clutch 2 is disposed between the pulley 1 and the speed reduction mechanism 3, the one-way clutch 4 is disposed between the speed reduction mechanism 3 and the electric motor 5, and the one-way clutch 6 is disposed between the electric motor 5 and the compressor 7. .

  The one-way clutch 2, the speed reduction mechanism 3, the one-way clutch 4, the electric motor 5, the one-way clutch 6, and the compressor 7 are housed integrally in the housing 100. The housing 100 is formed by sequentially stacking a speed reduction mechanism housing 101, a front housing 102, a motor housing 103, a center housing 106, and a rear housing 104 and fastening them with through bolts 105.

  The speed reduction mechanism 3 is accommodated between the speed reduction mechanism housing 101 and the front housing 102, one end opening of the motor housing 103 is closed by a rear housing 104, and the electric motor 5 and the compressor 7 are accommodated inside the motor housing 103. ing. The center housing 106 is supported by the motor housing 103 and partitions the electric motor 5 and the compressor 7.

(Electric motor 5)
The electric motor 5 is a normal IPM, but is not limited thereto. Since the electric motor 5 itself is well-known, only the basic part will be described briefly. A stator core 51 fixed to the inner peripheral surface of the motor housing 103, a stator coil 52 wound around the stator core 51, a rotor 53 disposed radially inside the stator core, and a hollow motor rotating shaft 54 fitted into the rotor 53. It has. The motor rotation shaft 54 is rotatably supported by the motor housing 103 and the center housing 106 via bearings 55 and 56.

  A rotation shaft 31 of the speed reduction mechanism 3 is inserted into the hollow motor rotation shaft 54 from the front, and a rotation shaft 71 of the compressor 7 from the rear, so as to be relatively rotatable, and between the motor rotation shaft 54 and the rotation shaft 31. The one-way clutch 4 is accommodated between the motor rotating shaft 54 and the rotating shaft 71. The rotating shaft 31 passes through the front housing 102 and protrudes into a gear chamber between the speed reduction mechanism housing 101 and the front housing 102.

(Deceleration mechanism 3)
The speed reduction mechanism 3 is a normal planetary speed reduction mechanism, but is not limited thereto. Since the planetary deceleration mechanism itself is well known, only its basic part will be described briefly. The speed reduction mechanism 3 has a sun gear 32, an internal gear 33, and a planetary gear 34 formed on the rotary shaft 31 in the gear chamber. A planetary gear pivot pin 37 is implanted in the front housing 102, and the planetary gear 34 is pivotally supported on the planetary gear pivot pin 37 by a bearing 38. The rotating shaft 35 is rotatably supported on the speed reduction mechanism housing 101 by a bearing 39, and the front end portion of the rotating shaft 31 is rotatably supported by the bearing. Reference numeral 40 denotes a mechanical seal for enclosing the refrigerant.

(Pulley 1)
The pulley 1 has a base cylinder part 17 screwed to the rotation shaft 35 of the speed reduction mechanism 3 by a pulley nut 16 and a pulley part 19 rotatably supported by a bearing 18 on the outer peripheral surface of the base cylinder part 17. ing. A one-way clutch 2 is disposed between the base tube portion 17 and the pulley portion 19 adjacent to the bearing 18. The pulley nut 16 and the base tube portion 17 are integrally formed. The one-way clutches 2, 4, and 6 described above may have the same structure as an overrunning clutch used in a normal starter for starting the engine, or other known one-way clutch structures.

(Compressor 7)
The compressor 7 is a scroll type, but is not limited thereto. The outer shell of the compressor 7 includes a center housing 106, a fixed scroll 72 at the rear thereof, and a rear housing 104. Reference numeral 73 denotes a turning scroll disposed between the center housing 106 and the fixed scroll 72. A rotation shaft 71 of the compressor 7 passes through the center housing 106 and engages with the orbiting scroll 73. The rear end portion of the rotating shaft 71 has a diameter-expanded portion 71b that is expanded in a flange shape. The enlarged diameter portion 71b is relatively rotatable on the right end surface of the rotary shaft 54 via a thrust bearing 74 so as to be able to carry a thrust load.

  The fixed scroll 72 includes a substantially disc-shaped end plate portion 72a, and a spiral blade portion 72b protruding in the axial direction therefrom. The orbiting scroll 73 includes a generally disc-shaped end plate portion 73 a and a spiral blade portion 73 b that protrudes axially from the end plate portion 73 a and meshes with the spiral blade portion 72 b of the fixed scroll 72 so as to mesh with the fixed scroll 72. Has been placed. In the orbiting scroll 73, a cylindrical boss portion 73c projects in the axial direction from the back surface of the end plate portion 73a, and the boss portion 73c is supported by a bush 76 via a bearing 75 so as to be relatively rotatable. The bush 76 is attached to an eccentric shaft portion 71 c that protrudes in the axial direction from the enlarged diameter portion 71 b of the rotating shaft 71. A discharge port 77 is opened at the center of the end plate portion 72 a of the fixed scroll 72, and a lead-shaped discharge valve 79 is connected to the discharge port 77 from the side of the discharge chamber 80 formed as a space in the rear housing 104. It is blocking. A suction chamber 81 is formed in the fixed scroll 72 so as to be located on the outer peripheral side of the spiral blade 73 b of the orbiting scroll 73.

(Explanation of compressor drive operation)
When driving of the compressor 7 as a refrigerant compressor of the vehicle air conditioner is commanded by a manual command by a switch operated by the driver or by an automatic command by an electronic control unit, the three-phase AC power is supplied from the battery power source 11 through the inverter 13. Is supplied to the stator coil 52 of the electric motor 5, and the rotational force of the rotor 53 is transmitted to the rotary shaft 71 via the one-way clutch 6. When the eccentric shaft portion 71c of the rotating shaft 71 rotates, the orbiting scroll 73 also tries to rotate. However, since the orbiting scroll 73 is prevented from rotating by a rotation prevention mechanism (not shown), the orbiting scroll 73 meshes with the fixed scroll 72. Only revolve in the state. As a result, when the working chamber 82 formed between the spiral blade portion 72b of the fixed scroll 72 and the spiral blade portion 73b of the orbiting scroll 73 engaged therewith opens toward the suction chamber 81 on the outer peripheral portion. The low-pressure refrigerant returning from the evaporator of the refrigeration cycle to the suction chamber 81 is taken into the working chamber 82. As the orbiting scroll 73 continues to revolve, the volume of the working chamber 82 is continuously reduced while the outer working chamber 82 is closed and moved toward the center, so that the refrigerant confined in the working chamber 82 Is compressed. The pressurized refrigerant is discharged from the discharge port 77 to the discharge chamber 80 by opening the discharge valve 79 when the working chamber 82 is opened at the center. The high-pressure refrigerant in the discharge chamber 80 is sent from the discharge port (not shown) to the condenser (not shown) of the refrigeration cycle.

(Description of engine starting operation)
When the engine operation is resumed from the engine stop state, the three-phase AC power is supplied from the battery power source 11 through the inverter 13 to the stator coil 52 of the electric motor 5 based on the command of the electronic controller of the traveling system, and the rotational force of the rotor 53 Is transmitted to the rotary shaft 31 via the one-way clutch 4. The rotational force is reversed and transmitted to the internal gear 33 by the planetary gear (planetary gear) 34 meshed with the sun gear 32 provided at the tip of the rotary shaft 31, and is transmitted to the rotary shaft 35 connected to the internal gear 33. The rotational force is transmitted to the pulley portion 19 via the base cylinder portion 17 integrated with the pulley nut 16 and the one-way clutch 2, and is transmitted from the pulley portion 19 to the crank pulley of the engine via the belt. The electric motor 5 generates a rotational force until a predetermined engine speed to be commanded is reached. When the engine speed reaches a predetermined value, the electric motor 5 stops the rotation energy of the rotor 53 while regenerating it according to a stop command from the electronic control unit. At this time, although the pulley unit 19 is driven by the engine, transmission of the rotational force (torque) is interrupted by the one-way clutch 2, so that overspeed (overrun) of the speed reduction mechanism 3 and the electric motor 5 is prevented.

(Engine start-up operation from auxiliary drive state)
When the compressor 7 is in a driving state when the engine is started, the traveling electronic control unit first issues an auxiliary machine drive stop command. Accordingly, the inverter 13 regeneratively brakes the electric motor 5 and stops it. When the number of revolutions that can be considered as the motor 5 has stopped is reached, the electronic control unit of the traveling system issues an engine start command. Accordingly, the inverter 13 supplies a three-phase alternating current that rotates the electric motor 5 in the opposite direction to that when the auxiliary machine is driven, rotates the electric motor 5, and the rotational force is applied to the pulley unit 19 via the one-way clutches 4 and 2 sequentially. Communicated. Hereinafter, the electric motor 5 generates a rotational force (torque) until the engine speed reaches a value commanded by the electronic control unit.
(Example effect)
According to the auxiliary drive type engine starting device of the embodiment described above, the following effects can be obtained.

  Since the drive of the compressor 7 and the engine start are switched by switching the rotation direction of the electric motor 5, the separation of the compressor 7 from the electric motor 5 at the time of engine start can be realized by a simple one-way clutch 6, and at the time of driving the compressor Separation between the electric motor 5 and the engine 8 can be realized by a simple one-way clutch 2 or 4. Eventually, according to this embodiment, by utilizing the fact that the engine start and the compressor drive need not be performed simultaneously, the motor 5 is provided with two one-way clutches 2 or 4 and 6, thereby providing a compressor drive motor. The engine can be started, the number of parts can be reduced, and the overall weight and physique can be reduced.

  Next, since the one-way clutches 4 and 6 for switching the rotational force transmission direction described above are accommodated inside the rotor core in the radial direction of the electric motor 5, the axial length of the device can be greatly reduced. Can be improved.

  Next, since the reduction rotation shaft 35 of the planetary reduction mechanism 3 and the bearing 39 for supporting it on the housing are incorporated inside the pulley portion (pulley according to the present invention) in the radial direction, further reduction of the axial length is realized. Can do.

  Next, since the bearings 55 and 56 for supporting the hollow rotary shaft 54 to which the rotor 53 of the electric motor 5 is fitted are arranged on the radially inner side of the coil end of the stator coil 52, further reduction of the axial length is realized. Can do.

Eventually, by shortening these shaft lengths, it is possible to realize an electric compressor with an engine start function that is extremely excellent in mountability.
(Other variations)
In the above embodiment, the one-way clutches 4 and 6 used for switching between driving only the compressor 7 by the electric motor 5 and driving only the speed reduction mechanism 3 by the electric motor 5 are accommodated inside the rotor 53 in the radial direction. The clutch 6 may be housed inside the compressor 7. For example, when the compressor 7 is a swash plate compressor or a swing swash plate compressor, the one-way clutch 6 can be disposed between the swash plate or the swing swash plate and the rotation shaft.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic block diagram showing a first embodiment of an accessory-driven engine starter of the present invention. It is a schematic block diagram which shows Example 2 of this invention auxiliary machine drive type engine starting apparatus. It is a schematic longitudinal cross-sectional view which shows Example 3 of the auxiliary machine drive type engine starting apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pulley 2 One-way clutch 3 Deceleration mechanism 4 One-way clutch 5 Electric motor 6 One-way clutch 7 Compressor 8 Engine 9 Crank pulley 10 Belt 11 Battery 12 Controller 13 Inverter 16 Pulley nut 17 Base cylinder part 19 Pulley part (pulley)
Reference Signs List 31 Rotating shaft 32 Sun gear 33 Internal gear 34 Planetary gear 35 Rotating shaft 36 Carrier 37 Planetary gear pivot pin 51 Stator core 52 Stator coil 53 Rotor 54 Rotating shaft 71 Rotating shaft 71b Expanded portion 71c Eccentric shaft portion 72 Fixed scroll 72a End plate Portion 72b blade portion 73 orbiting scroll 73a end plate portion 73b blade portion 73c boss portion 74 thrust bearing 75 bearing 76 bush 77 discharge port 79 discharge valve 80 discharge chamber 81 suction chamber 82 working chamber 100 housing 101 speed reduction mechanism housing 102 front housing 103 motor Housing 104 Rear housing 105 Through bolt 106 Center housing

Claims (10)

An electric motor for starting the engine;
A speed reduction mechanism disposed on one end side of the rotating shaft of the motor, having an input rotating shaft to which the rotating force is input from the electric motor and an output rotating shaft that outputs the rotating force to the engine side;
An auxiliary machine disposed on the other end side of the rotating shaft of the electric motor;
A reduction gear coupling mechanism that transmits the output of the electric motor to the input rotation shaft of the reduction mechanism in an intermittent manner, or an auxiliary machinery coupling mechanism that transmits the output of the electric motor to the rotation shaft of the auxiliary equipment in an intermittent manner;
In the starter with auxiliary drive function equipped with
The speed reducer joint mechanism or auxiliary machine joint mechanism is
An accessory-driven engine starter, which is housed inside the stator of the electric motor in the radial direction. In the auxiliary drive type engine starter according to claim 1,
The speed reducer joint mechanism or the accessory joint mechanism is an accessory-driven engine starter housed inside the rotor of the electric motor in the radial direction. In the auxiliary machine type engine starter according to claim 1 or 2,
The speed reducer joint mechanism or auxiliary machine joint mechanism is
An accessory-driven engine starter accommodated in a hollow hole formed in a rotor shaft to which a rotor core of the electric motor is fitted. The auxiliary drive type engine starter according to claim 3,
The reduction gear joining mechanism and the auxiliary equipment joining mechanism are:
An accessory-driven engine starter accommodated in a hollow hole formed in a rotor shaft to which a rotor core of the electric motor is fitted. The auxiliary drive type engine starting device according to claim 4,
The speed reducer joining mechanism or auxiliary machine joining mechanism is composed of a one-way clutch whose joining direction is reverse,
The motor is an accessory-driven engine starter that rotates in the opposite direction when the engine is started and when the accessory is driven. The auxiliary drive type engine starting device according to claim 5,
The speed reducer joining mechanism is
Arranged in the radial clearance between the input rotary shaft of the speed reducer and the rotor shaft inserted from one end side into the hollow hole,
The auxiliary machine joint mechanism is
An accessory-driven engine starter disposed in a radial clearance between a rotating shaft of the accessory and the rotor shaft inserted into the hollow hole from the other end side. The auxiliary machine drive type engine starter according to any one of claims 1 to 6,
The output rotation shaft of the deceleration mechanism is
An accessory-driven engine starter that is connected to a pulley through a pulley clutch that is a one-way clutch. The auxiliary drive type engine starting device according to claim 7,
At least a part of the deceleration mechanism is
An auxiliary machine drive type engine starting device housed inside the pulley in the radial direction. The auxiliary drive type engine starter according to claim 8,
The reduction gear output shaft is
An auxiliary machine drive type engine starter supported on a housing through a bearing accommodated radially inside the pulley. The auxiliary drive type engine starter according to claim 9,
The bearing for supporting the reduction gear output shaft is:
An accessory-driven engine starter that is located inside the pulley clutch and housed inside the pulley in the radial direction.

Images