JP2011085129A - Starter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of an idle-stop ECU 7 which can fully withstand the vibration from an engine in a starter 1 capable of independently controlling the operation of a solenoid for pinion shift and the operation of a solenoid for motor energization by the idle-stop ECU 7. <P>SOLUTION: A starter 1 includes a solenoid for pinion shift having the function of shifting a pinion 18, and a solenoid for motor energization for opening/closing a main switch of a motor circuit, and both solenoids are integrally constituted as an electromagnetic solenoid apparatuses 28. The idle-stop ECU 7 capable of independently controlling the operations of both solenoids 5, 6 is arranged close to a resin cover 40 to be assembled to the electromagnetic solenoid apparatus 28, and fixed to the resin cover 40 by using two terminal bolts 48, 49 to be mounted on the resin cover 40. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention includes a pinion extrusion solenoid that pushes the pinion in the axial direction, and a motor energization solenoid that opens and closes a switch that intermittently switches the current flowing through the motor, and controls the operation of both solenoids independently by a control device. It relates to a starter configured to be able to.

In recent years, for the purpose of reducing carbon dioxide and improving fuel efficiency, an increasing number of vehicles are equipped with an engine automatic stop / restart device (hereinafter referred to as an idle stop device) that automatically controls engine stop and restart.
This idle stop device, for example, when the vehicle is temporarily stopped due to a traffic signal stop or traffic jam at an intersection, the fuel supply to the engine is cut and the engine is automatically stopped. When the restart condition is satisfied by performing a brake pedal release operation, a shift operation to the drive range, or the like, the starter is automatically activated to restart the engine.
By the way, when the engine is automatically stopped after an idle stop is performed, a function that allows the driver to restart the engine based on traffic conditions, etc., even during the deceleration period until the engine completely stops. A starter with is needed.

  However, since the conventional general pinion extrusion starter cannot be engaged with the ring gear unless the engine ring gear is in a stopped state, the engine is restarted using the conventional starter. In this case, after the engine enters the stop process, it cannot be restarted until the rotation of the engine is completely stopped. In this case, for example, even if the traffic light changes to a green light after the traffic light turns to a red signal, the vehicle decelerates and an engine stop command is output, and the engine enters the stop process, the vehicle cannot be restarted immediately. There's a problem. Therefore, a starter is required that has a function that allows the driver to restart the engine based on traffic conditions and the like even during a deceleration period until the engine completely stops.

As a related art relating to the above-described function (a function capable of engaging the pinion with the ring gear during the engine deceleration period and restarting the engine), there is Patent Document 1.
The starter disclosed in Patent Document 1 includes a pinion push-out solenoid that has a function of pushing out a pinion toward the ring gear, and a motor energization switch that turns on / off a current that is passed through the motor. The operation and the operation of the motor energization switch can be controlled independently by the control device. As a result, when a restart request is generated during the engine deceleration period, the pinion is pushed into the rotating (decelerating) ring gear and meshed, and then the motor can be energized to restart the engine. .

International Publication No. 2007/101770 Pamphlet

By the way, the starter is a product that is directly mounted on the engine and is directly subjected to severe vibration accompanying the rotation of the engine. Therefore, it is essential that the product itself has a structure that can withstand severe vibration.
However, in Patent Document 1, the control device is attached to the housing of the starter, and the pinion push-out solenoid and the motor energizing switch have a terminal for connecting the electrical wiring with the control device at the rear side of the starter. It is taken out (on the opposite side of the housing in the axial direction). In this configuration, since the electrical wiring connecting the control device, the pinion pushing solenoid and the motor energization switch becomes longer in the axial direction of the starter, there is a possibility that the electrical wiring may be disconnected due to severe vibration accompanying engine rotation. Or, when the starter is attached to the engine, it is conceivable that the electrical wiring is caught by auxiliary equipment arranged in the periphery of the engine, other parts, etc., resulting in disconnection.

  The present invention has been made based on the above circumstances, and an object of the present invention is to provide a starter capable of independently controlling the operation of the pinion extrusion solenoid and the operation of the motor energization solenoid by a control device, and a vibration transmitted from the engine. It is another object of the present invention to provide a control device mounting structure that can sufficiently withstand the above.

(Invention of Claim 1)
The present invention is a starter that pushes a pinion in an axial direction and meshes with a ring gear of an engine, transmits the rotational force of the motor to the pinion, and drives the ring gear to start the engine, and the pinion is connected via a shift lever. Pinion extrusion solenoid that pushes in the axial direction, motor energization solenoid that opens and closes the switch for interrupting the current flowing from the battery to the motor, operation of the pinion extrusion solenoid, and operation of the motor energization solenoid are independent And a control device that can be controlled by the motor, the pinion pushing solenoid and the motor energizing solenoid are integrally configured as a starter electromagnetic solenoid device, and the control device is attached to the starter electromagnetic solenoid device. .

  In the starter of the present invention, since the control device is attached to the starter electromagnetic solenoid device, the control device, the pinion extrusion solenoid, and the motor energization are compared with the prior art (Patent Document 1) in which the control device is attached to the starter housing. The electrical wiring for connecting to the solenoid can be shortened. Thereby, it is possible to prevent the electrical wiring from being disconnected due to severe vibration accompanying the engine rotation. In addition, since the electrical wiring can be shortened, when the starter is attached to the engine, the possibility that the electrical wiring is caught by an auxiliary machine or other parts arranged around the engine and is disconnected is reduced.

(Invention of Claim 2)
2. The starter according to claim 1, wherein the starter electromagnetic solenoid device includes a cylindrical case in which one end side in the axial direction is fixed to the starter housing, and a pinion push-out solenoid and a motor energization solenoid in the case. A resin cover that is fixed to the case by closing an opening that opens on the opposite side of the case (the other end side in the axial direction) in a state of being housed in series in a direction, Two terminal bolts connected to the motor circuit are attached, and the control device has a resin case containing a control circuit such as an IC, and this resin case is attached to the resin cover of the starter electromagnetic solenoid device. It is characterized by being.

In the above configuration, since the distance between the resin cover of the starter electromagnetic solenoid device and the resin case of the control device is short, electrical connection between the control device and the pinion push-out solenoid and the motor energization solenoid can be facilitated.
For example, an energizing terminal connected to each coil of a pinion pushing solenoid and a motor energizing solenoid can be provided on the resin cover of the starter electromagnetic solenoid device. Further, the control device can embed a metal plate or the like that forms a signal path in the resin case, and can electrically connect the metal plate to the energization terminal.

(Invention of Claim 3)
The starter described in claim 2 is characterized in that the resin case is fixed to the resin cover using both or one of the two terminal bolts.
According to the above configuration, in order to attach the control device to the electromagnetic solenoid device for starter, for example, it is not necessary to newly provide a mounting base or the like on the electromagnetic solenoid device for starter. Since the resin case of the control device can be easily fixed to the resin cover, the cost can be kept low.
A specific example in which the resin case of the control device is fixed to the resin cover using two terminal bolts will be described.

First, a fixing plate having two fitting holes corresponding to two terminal bolts is formed integrally with a resin case of the control device. Next, the resin case is assembled to the resin cover of the electromagnetic solenoid device for the starter through two terminal bolts through the two fitting holes formed in the fixing plate. Finally, a fixing washer or a nut is tightened on the two terminal bolts to fix the fixing plate to the resin cover. Thus, the control device can easily fix the resin case to the resin cover using the two terminal bolts.
In addition, the resin case of the control device is used in the same manner as in the above specific example by using only one of the two terminal bolts (for example, the terminal bolt to which the battery cable is connected). It can also be fixed to the resin cover.

(Invention of Claim 4)
The present invention is a starter that pushes a pinion in an axial direction and meshes with a ring gear of an engine, transmits the rotational force of the motor to the pinion, and drives the ring gear to start the engine, and the pinion is connected via a shift lever. Pinion extrusion solenoid that pushes in the axial direction, motor energization solenoid that opens and closes the switch for interrupting the current flowing from the battery to the motor, operation of the pinion extrusion solenoid, and operation of the motor energization solenoid are independent And a control device that can be controlled by the motor, the pinion pushing solenoid and the motor energizing solenoid are integrally formed as a starter electromagnetic solenoid device, and the control device is fixed to an end frame of the motor.

  In the starter of the present invention, since the control device is fixed to the end frame of the motor, the control device, the pinion extrusion solenoid, and the motor energization are compared with the prior art (Patent Document 1) in which the control device is attached to the starter housing. The electrical wiring for connecting to the solenoid can be shortened. Thereby, it is possible to prevent the electrical wiring from being disconnected due to severe vibration accompanying the engine rotation. In addition, since the electrical wiring can be shortened, when the starter is attached to the engine, the possibility that the electrical wiring is caught by an auxiliary machine or other parts arranged around the engine and is disconnected is reduced.

(Invention of Claim 5)
The present invention is a starter that pushes a pinion in an axial direction and meshes with a ring gear of an engine, transmits the rotational force of the motor to the pinion, and drives the ring gear to start the engine, and the pinion is connected via a shift lever. Pinion extrusion solenoid that pushes in the axial direction, motor energization solenoid that opens and closes the switch for interrupting the current flowing from the battery to the motor, operation of the pinion extrusion solenoid, and operation of the motor energization solenoid are independent And a control device that can be controlled by the motor, the pinion pushing solenoid and the motor energizing solenoid are integrally configured as an electromagnetic solenoid device for a starter, and the control device is fixed to a yoke of the motor.

  In the starter of the present invention, since the control device is fixed to the yoke of the motor, the control device, the pinion extrusion solenoid, and the motor energization are compared with the prior art (Patent Document 1) in which the control device is attached to the starter housing. The electrical wiring connecting the solenoid can be shortened. Thereby, it is possible to prevent the electrical wiring from being disconnected due to severe vibration accompanying the engine rotation. In addition, since the electrical wiring can be shortened, when the starter is attached to the engine, the possibility that the electrical wiring is caught by an auxiliary machine or other parts arranged around the engine and is disconnected is reduced.

1 is an overall side view of a starter according to Embodiment 1. FIG. It is the top view which looked at the starter concerning Example 1 from the axis back. It is sectional drawing of an electromagnetic solenoid apparatus. It is an electric circuit diagram of a starter. (A) The whole side view of the starter concerning Example 2, (b) The top view which looked at the starter concerning Example 2 from the axis back. (A) The side view of the whole starter concerning Example 3, (b) The top view which looked at the starter concerning Example 3 from the axis back.

  The best mode for carrying out the present invention will be described in detail with reference to the following examples.

Example 1
The starter 1 of the present embodiment is applied to, for example, a vehicle equipped with an idle stop device that automatically controls stop and restart of the engine, and as shown in FIG. The output shaft 3 that is rotated by the rotational force transmitted thereto, a pinion moving body (to be described later) arranged to be movable on the outer periphery of the output shaft 3, and the pinion moving body through the shift lever 4 in the direction opposite to the motor A pinion push-out solenoid 5 (see FIG. 3) having a function of pushing out (to the left in FIG. 1), a motor energizing solenoid 6 (see FIG. 3) for opening and closing a main switch (described later) provided in the motor circuit, A control device (hereinafter referred to as idle stop ECU 7) capable of independently controlling the operation of the pinion pushing solenoid 5 and the operation of the motor energizing solenoid 6 is provided.

As shown in FIG. 1, the motor 2 includes, for example, a field 8 composed of a plurality of permanent magnets, an armature 11 having a commutator 10 provided at one end of an armature shaft 9, and a commutator 10. The commutator motor includes a brush 13 and the like that are disposed in contact with the outer peripheral surface of the commutator and pressed against the outer peripheral surface of the commutator 10 by the brush spring 12 (see FIG. 4). The field 2 of the motor 2 can use an electromagnet field by a field coil instead of a permanent magnet.
As shown in FIG. 1, the output shaft 3 is disposed on the same axis as the armature shaft 9 via the speed reducer 14, and the rotation of the motor 2 is decelerated by the speed reducer 14 and transmitted.
The speed reducer 14 is a known planetary gear speed reducer, and a planet carrier 16 that picks up the revolving motion of the planetary gear 15 is provided integrally with the output shaft 3.

The pinion moving body includes a clutch 17 and a pinion 18 described below.
As shown in FIG. 1, the clutch 17 is disposed on the outer periphery of the output shaft 3 with a spline barrel 17a that fits in a helical spline, an outer 17b provided integrally with the spline barrel 17a, and an inner periphery of the outer 17b. In addition, an inner 17c that is rotatably fitted to the outer periphery of the output shaft 3 via a bearing 19, a roller 17d that intermittently transmits rotational force between the outer 17b and the inner 17c, and an urging force for the roller 17d It is configured as a well-known one-way clutch that includes a roller spring (not shown) or the like that transmits a rotational force only in one direction from the outer 17b to the inner 17c via the roller 17d.

The pinion 18 is directly splined to the outer periphery of an inner tube 20 provided in a cylindrical shape extending from the inner 17c in the anti-motor direction (left direction in FIG. 1), and moved in the anti-clutch direction (left direction in the figure). Is regulated by a pinion stopper 21 attached to the end of the inner tube 20.
The pinion 18 and the inner tube 20 have a pinion side pressure receiving surface (referred to as a gear side pressure receiving surface) and an inner tube side pressure receiving surface (tube side pressure receiving surface Between the gear side pressure receiving surface and the tube side pressure receiving surface, and an elastic body 22 (for example, a spring) is disposed in a state where elasticity is stored. 18 is pressed against the pinion stopper 21.

Next, the pinion pushing solenoid 5 and the motor energizing solenoid 6 will be described.
As shown in FIG. 3, the pinion pushing solenoid 5 and the motor energizing solenoid 6 have a first coil 23 and a second coil 24 that form an electromagnet when energized, respectively. A fixed iron core 25 commonly used for both is disposed between the two coils 24 and a first case 26 that also serves as the yoke of the pinion extrusion solenoid 5 and a yoke that serves as the yoke of the motor energizing solenoid 6. Two cases 27 are formed continuously in the axial direction, and are integrally provided as one whole case. That is, the pinion push-out solenoid 5 and the motor energization solenoid 6 are both arranged in series in the axial direction (the left-right direction in the figure), and are used as the starter electromagnetic solenoid device (hereinafter referred to as the electromagnetic solenoid device 28) of the present invention. It is constructed integrally.

  As shown in FIG. 3, the entire case (the first case 26 and the second case 27) has an annular bottom at the end on one end side (left side in the figure), and the end on the other end side opens. And is fixed to a starter housing 29 (see FIG. 1) via two stud bolts (not shown) attached to an annular bottom surface. This entire case has the same outer diameter from one end to the other end in the axial direction, and the other end side that forms the second case 27 is closer than the one end side that forms the first case 26. The inner diameter is large and the wall thickness is thin. That is, a step is provided on the inner peripheral surface of the entire case between one end side in the axial direction forming the first case 26 and the other end side in the axial direction forming the second case 27. .

The fixed iron core 25 is divided into an annular iron core plate 25a and an iron core core portion 25b that is fitted and fixed to the inner periphery of the iron core plate 25a, and is arranged on the first coil 23 side of the iron core plate 25a. Is positioned in the axial direction by contacting a step provided on the inner peripheral surface of the entire case.
In the pinion push-out solenoid 5, the first coil 23 wound around the resin bobbin 30 is housed in the inner periphery on the one end side of the entire case (the left side of the iron core plate 25a in the drawing), and one of the iron core portions 25b. A plunger 31 is provided so as to face the suction surface (left end surface in FIG. 3) and move the inner periphery of the first coil 23 in the axial direction.
As shown in FIG. 4, the first coil 23 has one end connected to the first terminal 32 and the other end joined to the surface of the iron core plate 25a by welding or the like and grounded. ing. The first terminal 32 is provided, for example, so as to protrude outside from a resin cover 40 described later, and is connected to an electrical wiring (using the metal plate 33 in this embodiment) connected to the idle stop ECU 7.

When the fixed iron core 25 is magnetized by energizing the first coil 23, the plunger 31 resists the reaction force of the return spring 34 (see FIG. 3) disposed between the iron core core portion 25b. When it is attracted to one of the attracting surfaces of the core portion 25b and energization of the first coil 23 is stopped, it is pushed back in the direction of the anti-core core portion (left direction in FIG. 3) by the reaction force of the return spring 34.
The plunger 31 is provided in a substantially cylindrical shape having a cylindrical hole in the central portion in the radial direction. The cylindrical hole opens on one end side (left side in the drawing) of the plunger 31 and has a bottom surface on the other end side. is doing. In the cylindrical hole of the plunger 31, there are a joint 35 for transmitting the movement of the plunger 31 to the shift lever 4, and a drive spring 37 for storing a reaction force for meshing the pinion 18 with the ring gear 36 (see FIG. 1) of the engine. Has been inserted.

The joint 35 is provided in a rod shape, and an engagement groove 35a that engages one end of the shift lever 4 is formed at one end protruding from the cylindrical hole of the plunger 31, and is formed at the other end. A flange portion 35b is provided. The flange portion 35 b has an outer diameter that can slide on the inner periphery of the cylindrical hole, and is pressed against the bottom surface of the cylindrical hole under the load of the drive spring 37.
In the drive spring 37, after the plunger 31 moves, the axial end surface of the pinion 18 pushed out in the anti-motor direction via the shift lever 4 comes into contact with the axial end surface of the ring gear 36, and then the plunger 31 is moved to the core core portion 25b. The reaction force is accumulated by being compressed until it is attracted to one of the adsorption surfaces.

In the motor energizing solenoid 6, a second coil 24 wound around a resin bobbin 38 is accommodated on the inner periphery of the other end side of the entire case (on the right side in FIG. 3 from the iron core plate 25a), and the iron core portion A movable iron core 39 that is movable in the axial direction on the inner periphery of the second coil 24 facing the other suction surface (the right end surface in FIG. 3) of 25b, and an opening that opens to the other end side of the entire case is closed. And a fixed contact 41 and a movable contact 42 forming a main switch are disposed inside the resin cover 40.
As shown in FIG. 4, the second coil 24 has one end connected to the second terminal 43 and the other end joined to the surface of the iron core plate 25a by welding or the like and grounded. ing. The second terminal 43 is provided, for example, so as to protrude from the resin cover 40 to the outside, and is connected to electrical wiring (using the metal plate 44 in this embodiment) connected to the idle stop ECU 7.

A cylindrical auxiliary yoke 45 that forms a part of the magnetic circuit and a plate-like magnetic path plate member 46 are arranged on the radially outer side of the second coil 24 and on the axially opposite iron core plate side, respectively. Yes.
The auxiliary yoke 45 is inserted into the inner periphery of the other end of the entire case forming the second case 27 without any substantial gap, and the end surface on the one end side in the axial direction is in contact with the outer peripheral surface of the core plate 25a. It is positioned in the axial direction with respect to 25a.
The magnetic path plate material 46 is disposed orthogonally to the axial direction of the second coil 24 and has an annular shape having a round hole in the central portion in the radial direction so that the movable iron core 39 can move in the axial direction. Is formed. The magnetic path plate member 46 is positioned in the axial direction with respect to the auxiliary yoke 45 with the outer peripheral surface of the coil side (left side in FIG. 3) in the plate thickness direction coming into contact with the axial end surface of the auxiliary yoke 45.

When the fixed iron core 25 is magnetized by energizing the second coil 24, the movable iron core 39 opposes the reaction force of the return spring 47 disposed between the movable core 39 and the iron core core portion 25b. When it is attracted to the other attracting surface and energization of the second coil 24 is stopped, it is pushed back in the direction of the anti-core core portion 25b (right direction in FIG. 3) by the reaction force of the return spring 47.
The resin cover 40 has a bottomed portion 40a to which two terminal bolts 48 and 49 are attached, and a cylindrical leg portion 40b extending in the axial direction from the outer periphery of the bottomed portion 40a. Inserted in the inner periphery of the opening that opens to the other end of the entire case, the axial end surface of the leg 40b abuts against the surface on the side opposite to the coil of the magnetic path plate 46 and extends axially with respect to the magnetic path plate 46 It is positioned and fixed to the entire case by caulking the end of the entire case in a recess (not shown) formed on the outer peripheral surface of the leg 40b.

The two terminal bolts 48 and 49 are a B terminal bolt 48 connected to the high potential side (battery side) of the motor circuit and an M terminal bolt 49 connected to the low potential side (motor side) of the motor circuit. The resin cover 40 is assembled to the resin cover 40 through a through hole penetrating the bottomed portion 40 a in the axial direction, and is fixed to the resin cover 40 by a washer 50.
The fixed contact 41 is in electrical contact with the two terminal bolts 48 and 49 and is mechanically fixed. The fixed contact 41 and the terminal bolts 48 and 49 may be formed separately from each other, but may be integrally provided.

The movable contact 42 is supported on the end surface of a resin rod 51 fixed to the movable iron core 39, and is disposed on the side opposite to the movable core (right side in FIG. 3) from the set of fixed contacts 41, and is a contact pressure spring. The load of 52 is received and pressed against the end face of the rod 51. The initial load of the contact pressure spring 52 is set smaller than the initial load of the return spring 47. Therefore, when the second coil 24 is not energized, the movable contact 42 is seated on the inner end surface of the resin cover 40 with the contact pressure spring 52 being compressed (the state shown in FIG. 3).
The main switch is closed (turned on) when the movable contact 42 urged by the contact pressure spring 52 abuts against a set of fixed contacts 41 and the fixed contacts 41 are electrically connected to each other. Is opened (off) by separating from the set of fixed contacts 41 and disconnecting the conduction between the fixed contacts 41.

As shown in FIG. 4, the idle stop ECU 7 inputs, for example, an engine rotation signal, a mission lever position signal, a brake switch on / off signal, etc. via an engine ECU 53 that controls the operating state of the engine. If it is determined that the stop condition for stopping the engine is satisfied based on the information, a stop signal is transmitted to the engine ECU 53.
Further, when the idle stop ECU 7 performs an operation (for example, a brake release operation, a shift operation to a drive range, or the like) for the driver to start the vehicle after the idle stop is performed, a restart request is issued. It is determined that it has occurred, and a restart request signal is transmitted to the engine ECU 53 and an ON signal is output to the electromagnetic solenoid device 28.
The engine ECU 53 has a self-diagnosis function for detecting (diagnosing) the malfunction when the malfunction occurs in the idle stop ECU 7, and is connected to the idle stop ECU 7 by a diagnostic communication line.

Next, as an example of the case where the idling stop is performed, an operation when a restart request is generated in the engine stop process (during the deceleration period until the engine rotation completely stops) will be described.
When a restart request is generated during the engine stop process, the idle stop ECU 7 first outputs an ON signal to the first coil 23 of the pinion push-out solenoid 5. As a result, the first coil 23 is energized from the battery 54 (see FIG. 4), and the plunger 31 is attracted and moved to one adsorption surface of the magnetized core core portion 25b. Along with the movement of the plunger 31, the pinion moving body is pushed out in the counter-motor direction via the shift lever 4, and the end surface of the pinion 18 comes into contact with the end surface of the ring gear 36. At this time, since the rotation of the engine is not completely stopped, that is, the ring gear 36 is rotating while decelerating, when the ring gear 36 rotates to a position where it can mesh with the pinion 18, it is stored in the drive spring 37. Due to the reaction force, the pinion 18 meshes with the ring gear 36.

  An ON signal is output from the idle stop ECU 7 to the second coil 24 of the motor energizing solenoid 6 with a delay of a predetermined time (for example, 30 ms) from the output timing of the ON signal to the first coil 23. Thereby, the second coil 24 is energized from the battery 54, and the movable iron core 39 is attracted and moved to the other adsorption surface of the magnetized iron core portion 25b. As the movable iron core 39 moves, the movable contact 42 is urged by the contact pressure spring 52 and comes into contact with the set of fixed contacts 41, thereby closing the main switch. As a result, the motor 2 is energized from the battery 54 to generate a rotational force in the armature 11, and the rotational force is transmitted to the output shaft 3 through the speed reducer 14, and further from the output shaft 3 through the clutch 17. It is transmitted to the pinion 18. Since the pinion 18 is already engaged with the ring gear 36, the rotational force of the motor 2 is transmitted from the pinion 18 to the ring gear 36, and the engine can be cranked quickly.

By the way, as shown in FIGS. 1 and 2, the idle stop ECU 7 of this embodiment uses two terminal bolts 48 and 49 (B terminal bolt 48 and M terminal bolt 49) to A resin cover 40 is attached.
A specific example in which the idle stop ECU 7 is attached to the resin cover 40 using the two terminal bolts 48 and 49 will be described.
The idle stop ECU 7 has a resin case 7a (see FIG. 2) containing a control circuit (not shown) such as an IC, and a fixing plate 55 is provided integrally with the resin case 7a. The fixing plate 55 has two fitting holes formed at positions corresponding to the two terminal bolts 48 and 49. Although a plurality of terminals are shown in the resin case 7a shown in FIG. 2, these terminals are not exposed to the outside air but are airtightly resin-molded.

After the resin case 7a is assembled to the resin cover 40 through the terminal bolts 48 and 49 through the two fitting holes formed in the fixing plate 55, the crimping washer 56 (see FIG. 1) is applied to the B terminal bolt 48. Then, the nut 57 (see FIG. 1) is fastened to the M terminal bolt 49 to fix the fixing plate 55 to the resin cover 40.
Accordingly, the idle stop ECU 7 can be attached to the resin cover 40 of the electromagnetic solenoid device 28 using the two terminal bolts 48 and 49.
In the above specific example, two terminal bolts 48 and 49 are used. However, one of the two terminal bolts 48 and 49 (for example, B to which a battery cable is connected). It is also possible to fix the resin case 7a of the idle stop ECU 7 to the resin cover 40 by using only the terminal bolt 48) as in the above-described specific example. Further, as shown in FIG. 2, the fixing plate 55 may be integrally provided with a connector 58 for wiring connection with the engine ECU 53.

(Effect of Example 1)
The starter 1 of the present embodiment fixes the first terminal 32 and the resin case 7a of the idle stop ECU 7 to the resin cover 40 of the electromagnetic solenoid device 28 using two terminal bolts 48 and 49. The idle stop ECU 7 can be arranged in the vicinity of the resin cover 40 from which the second terminal 43 is taken out.
Thereby, for example, the metal plates 33 and 44 are embedded in the resin case 7a of the idle stop ECU 7, and the metal plates 33 and 44 electrically connect the idle stop ECU 7 to the pinion pushing solenoid 5 and the motor energizing solenoid 6. And the lengths of the metal plates 33 and 44 can be shortened. As a result, it is possible to prevent the metal plates 33 and 44 from being disconnected due to severe vibration accompanying engine rotation.

Further, even when normal electrical wiring is used instead of the metal plates 33 and 44, the electrical wiring can be shortened when compared with the prior art (Patent Document 1) in which the control device is attached to the starter housing. In addition to preventing disconnection of the electrical wiring due to vibration, when attaching the starter 1 to the engine, the possibility of the electrical wiring being caught by auxiliary machinery and other parts arranged around the engine is reduced, The starter 1 having excellent vibration resistance can be provided.
Furthermore, in the configuration of the present embodiment, it is not necessary to newly provide a mounting base or the like in the entire case of the electromagnetic solenoid device 28. By using the existing two terminal bolts 48 and 49, the idle stop ECU 7 The resin case 7a can be easily fixed to the resin cover 40. In this case, compared with the case where a mounting base or the like is provided in the entire case of the electromagnetic solenoid device 28, the number of parts can be reduced and the mounting method is easy, so the cost can be kept low.

(Example 2)
The starter 1 shown in the second embodiment is an example in which the idle stop ECU 7 is attached to the end frame 59 of the motor 2 as shown in FIG.
For example, as shown in FIG. 5B, a fixing base 60 is attached to the end frame 59 of the motor 2 by welding or the like, and the idle stop ECU 7 is fixed to the fixing base 60 by screwing or the like. Can be attached.

(Example 3)
The starter 1 shown in the third embodiment is an example in which the idle stop ECU 7 is attached to the yoke 61 of the motor 2 as shown in FIG.
For example, as shown in FIG. 6B, a fixing base 62 is attached to the yoke 61 of the motor 2 by welding or the like, and the idle stop ECU 7 is fixed to the fixing base 62 by screwing or the like. Can be attached.

  In the above-described second and third embodiments, the idle stop ECU 7 can be disposed at a position close to the resin cover 40 of the electromagnetic solenoid device 28. Therefore, when compared with the prior art (Patent Document 1), the idle stop ECU 7 is taken out from the resin cover 40. The electrical wirings 33 and 44 connecting the first terminal 32 and the second terminal 43 and the idle stop ECU 7 can be shortened. As a result, it is possible to prevent disconnection of the electric wires 33 and 44 due to vibration, and when the starter 1 is attached to the engine, the electric wires 33 and 44 are caught by auxiliary machines and other parts arranged around the engine. The starter 1 having excellent vibration resistance can be provided.

1 Starter 2 Motor 4 Shift Lever 5 Pinion Extrusion Solenoid 6 Motor Energization Solenoid 7 Idle Stop ECU (Control Device)
7a Resin case of idle stop ECU 18 Pinion 26 First case (case of electromagnetic solenoid device for starter)
27 Second case (case of electromagnetic solenoid device for starter)
28 Electromagnetic Solenoid Device (Electromagnetic Sonorade Device for Starter)
29 Starter housing 36 Ring gear 40 Resin cover of electromagnetic solenoid device 41 Fixed contact (main switch)
42 Movable contact (main switch)
48 B terminal bolt 49 M terminal bolt 54 Battery 59 End frame of motor 61 Motor yoke

Claims (5)

A starter that pushes the pinion in the axial direction and meshes with the ring gear of the engine, transmits the rotational force of the motor to the pinion, and drives the ring gear to start the engine,
A pinion pushing solenoid having a function of pushing the pinion in an axial direction through a shift lever;
A motor energizing solenoid that opens and closes a switch for intermittently passing a current flowing from the battery to the motor;
A control device capable of independently controlling the operation of the pinion pushing solenoid and the operation of the motor energizing solenoid;
The pinion pushing solenoid and the motor energizing solenoid are integrally configured as a starter electromagnetic solenoid device,
The starter characterized in that the control device is attached to the starter electromagnetic solenoid device. The starter according to claim 1,
The electromagnetic solenoid device for a starter includes a cylindrical case whose one end in the axial direction is fixed to a starter housing, and the pinion push-out solenoid and the motor energization solenoid that are housed in series in the axial direction inside the case. In this state, it has a resin cover that is fixed to the case by closing the opening that opens on the opposite side of the housing (on the other end side in the axial direction). The resin cover is connected to the motor circuit. Two terminal bolts are attached,
The control device has a resin case containing a control circuit such as an IC, and the resin case is attached to a resin cover of the electromagnetic solenoid device for starter. The starter according to claim 2,
The starter characterized in that the resin case is fixed to the resin cover using both or one of the two terminal bolts. A starter that pushes the pinion in the axial direction and meshes with the ring gear of the engine, transmits the rotational force of the motor to the pinion, and drives the ring gear to start the engine,
A pinion pushing solenoid having a function of pushing the pinion in an axial direction through a shift lever;
A motor energizing solenoid that opens and closes a switch for intermittently passing a current flowing from the battery to the motor;
A control device capable of independently controlling the operation of the pinion pushing solenoid and the operation of the motor energizing solenoid;
The pinion pushing solenoid and the motor energizing solenoid are integrally configured as a starter electromagnetic solenoid device,
The starter characterized in that the control device is fixed to an end frame of the motor. A starter that pushes the pinion in the axial direction and meshes with the ring gear of the engine, transmits the rotational force of the motor to the pinion, and drives the ring gear to start the engine,
A pinion pushing solenoid having a function of pushing the pinion in an axial direction through a shift lever;
A motor energizing solenoid that opens and closes a switch for intermittently passing a current flowing from the battery to the motor;
A control device capable of independently controlling the operation of the pinion pushing solenoid and the operation of the motor energizing solenoid;
The pinion pushing solenoid and the motor energizing solenoid are integrally configured as a starter electromagnetic solenoid device,
The starter characterized in that the control device is fixed to a yoke of the motor.

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