JP2002322973A - Starter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the wiring connection operation of a warning means in a vehicle to improve the mounting operability of a starter on the vehicle. SOLUTION: A starter has a motor, a pinion which is a mechanism for transmitting the rotation drive force of the motor to an engine, a power supply circuit for supplying the power from a power supply source to the motor, and a warning means which is connected to the above circuit and warns the distribution or shut-off of the power to be supplied to the motor. In the above starter, the power supply circuit is provided with a terminal means for connecting the warning means thereto. Thereby, the wiring connection operation of the warning means is facilitated and the mounting operability of the starter on the vehicle can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a starter for starting an engine, and more particularly to a starter provided with alarm means for confirming power supply to a motor.

[0002]

2. Description of the Related Art As a starter that shifts a pinion by using an attraction force of a magnetic switch and a rotation driving force of a motor to start an engine that is an internal combustion engine,
For example, one described in Japanese Patent Application Laid-Open No. 11-230014 is known. According to the starter described in this publication, when the key switch is turned on, the plunger is attracted by energization from the battery to the magnetic switch, and the normally open contact inside the magnetic switch is closed. As a result, electric power is supplied to the motor, and the rotational driving force of the motor is transmitted to the engine via the roller clutch, the pinion, and the ring gear, and the engine starts.

When the motor is continuously energized due to a defect of a key switch or the like during operation of the starter, the temperature of each part rises. Along with this, the temperature of the line (motor lead wire) that supplies current to the armature of the motor also rises. A temperature detecting means is mounted on a lead wire of the motor, and when the temperature of the lead wire of the motor exceeds a predetermined temperature, this is detected and the supply of current to the motor is cut off. Since the lead wire of the motor is an external component exposed to the outside of the motor, the work of mounting the temperature detecting means on the lead wire of the motor can be easily performed.

[0004]

SUMMARY OF THE INVENTION In a conventional starter,
Consideration is given to notifying that the power supply to the motor has been cut off by an alarm means or the like in the case where a key switch return failure of the vehicle occurs. However, in the conventional starter, no consideration has been given to improving the wiring connection workability of the alarm means when assembling to a vehicle.

[0005] A typical object of the present invention is to facilitate the work of connecting the wiring of the alarm means and to improve the workability of assembling the starter to the vehicle.

[0006]

In order to achieve the above object, one of the present invention is to provide a motor, a pinion as a mechanism for transmitting a rotational driving force of the motor to an engine, and a power supply from a power supply. In a starter having a power supply circuit for supplying power to a motor and a warning unit connected to the power supply circuit and notifying the supply or cutoff of the power supplied to the motor, the warning unit is connected to the power supply circuit. Terminal means.

Another object of the present invention to achieve the above object is to provide a motor, a pinion for transmitting a rotational driving force of the motor to an engine, and a slidable movement of the pinion and supply to the motor. A magnetic switch having a normally open contact for energizing and interrupting the power to be supplied, a power supply circuit for supplying power to the motor from a power supply source such as a battery through the normally open contact, and a power supply circuit connected to the power supply circuit. In a starter having alarm means for notifying the energization or interruption of electric power supplied to a motor, terminal means for connecting the alarm means to a power supply circuit is provided.

[0008]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an external configuration of a starter according to a first embodiment of the present invention. FIG. 2 shows the internal configuration of the starter according to the first embodiment of the present invention. In FIG. 2, the starter is
This is a starting device that operates by receiving power supply from a battery 50 mounted on an automobile and generates rotational driving force for starting an engine that is an internal combustion engine.

[0009] The starter is functionally divided into three parts. That is, a rotation driving force generation unit including the motor 1 that generates the rotation driving force for starting the engine, a roller clutch 6 that transmits the rotation driving force of the motor 1 to the ring gear 11 of the engine, and a rotation including the pinion 7. It is composed of a driving force transmission unit and a rotation driving force transmission control unit that is a power source that slides the roller clutch 6 and the pinion 7 in the direction of the rotation axis and that is configured by a magnetic switch 3 that opens and closes the power supply of the motor 1. I have.

The motor 1 and the magnetic switch 3 are fixed to the front bracket 4 by fixing means such as bolts. The roller clutch 6 and the pinion 7 are rotatably supported in the front bracket 4.

The motor 1 is provided with a cylindrical yoke (also referred to as a yoke) 1e which forms the outer shell of the motor 1. On the inner peripheral side of the yoke 1e, a field stator (also referred to as a field pole) 1f that forms a magnetic circuit together with the yoke 1e is provided.

On the inner peripheral side of the field stator 1f, a rotor 2 (also called an armature) is rotatably supported via a predetermined gap. The rotor 2 includes a magnetic core 2a (also referred to as a rotor core). The magnetic core 2a constitutes a magnetic circuit. A plurality of slots are formed in the outer peripheral portion of the magnetic core 2a. An armature coil 2b (also called a rotor winding) is inserted into each of the slots. A commutator 2c (also referred to as a commutator) electrically connected to the armature coil 2b is provided at one end of the magnetic core 2a.
Is provided. The magnetic core 2a and the commutator 2c are fixed to the output shaft 2d. Tip of output shaft 2d (commutator 2
A roller clutch 6 and a pinion 7 are provided on the side opposite to (c) so as to be slidable in the axial direction. Both ends of the output shaft 2d are rotatably supported by bearings 4b and 5a.

A plurality of brushes 1g are in sliding contact with the outer peripheral cylindrical surface of the commutator 2c. The brush 1g supplies the power supplied from the battery 50 to the commutator 2c (+ brush) and the brush 1g supplies the power supplied to the armature coil 2b via the + brush and the commutator 2c to the ground side of the vehicle. (A negative brush). Each of the brushes 1g is integrally formed with one of brush lead wires (not shown) which is a power supply line. At one end of the yoke 1e (on the side of the commutator 2c), there is provided a brush holder 1h which holds each of the brushes 1g and presses and contacts each of the brushes 1g with the outer peripheral cylindrical surface of the commutator 2c. A brush holder 1h is provided on one end side (commutator 2c side) of the yoke 1e.
And a rear bracket 5 (also referred to as a rear cover) for fixing the brush holder 1h. The rear bracket 5 has a bearing 5 for supporting one end of the output shaft 2d.
a is provided.

The output shaft 2 d of the rotor 2 is rotatably supported by a bearing 4 b provided on a nose portion 4 a of the front bracket 4 and a bearing 5 a of the rear bracket 5.
A roller clutch 6 and a pinion 7 are slidably supported on the output shaft 2d.

The magnetic switch 3 controls the power supply to the motor 1 and controls the ring gear 1 of the engine.
1 controls the transmission of the rotational driving force to the motor 1
And a driving force for moving the roller clutch 6 and the pinion 7 in the direction of the rotation axis.

The coil case 3h, which is a cylindrical frame,
It constitutes a part of a magnetic circuit of the magnetic switch 3. Inside the coil case 3h, there are a suction coil (winding) 3f and a holding coil (winding) that are energized and generate a magnetic force.
3 g are provided. Suction coil 3f, holding coil 3
A plunger (movable core) 3a, which is a movable member slidable in the axial direction, is disposed on the inner periphery of g. Rear end side of inner circumference of suction coil 3f and holding coil 3g (left direction in FIG. 2)
Has a boss 3j that constitutes a part (fixed core) of a magnetic circuit.
Is arranged. A movable shaft 3k that is slidable in the axial direction is disposed at an axial position of the boss 3j.

The rear end of the movable shaft 3k (leftward in FIG. 2)
Is provided with a movable contact 3b that opens and closes a current supply circuit to the motor 1. A battery-side fixed contact 3c for opening / closing an energizing circuit to the motor 1 while being movable at a rear end of the magnetic switch 3 and facing the movable contact 3b. A side fixed contact 3d is provided. Battery side fixed contact 3c
Are integrally formed with a battery terminal 3n connected to the battery 50. A motor terminal 3m connected to the motor 1 via the motor lead wire 1a is formed integrally with the motor-side fixed contact 3d.

At the rear end of the magnetic switch 3,
A switch terminal 3p that is electrically connected to one end of the suction coil 3f and one end of the holding coil 3g and is connected to the battery 50 via the key switch 60 is provided. Motor terminal 3m,
The battery terminal 3n and the switch terminal 3p protrude outward from the rear end of the magnetic switch 3. The plunger 3a is biased by a spring 3e,
The spring load of the spring 3e acts to return the plunger 3a and the shift lever 8 to their original positions (rightward in FIG. 2) after starting the engine.

The plunger 3a has a square hole 3q at the front end (to the right in FIG. 2). The square hole 3q protrudes from the end of the magnetic switch 3 in the direction of the pinion 7 side. In the square hole 3q of the plunger 3a,
The plunger engaging portion 8b of the shift lever 8 is inserted and engaged. Thereby, the plunger 3a and the shift lever 8 are connected.

A fulcrum 8c is provided in the middle of the shift lever 8. A lever spring 9 is engaged with the fulcrum 8c. The lever spring 9 rotatably supports the shift lever 8 about a fulcrum 8c of the shift lever 8. The lever spring 9 serves as a fulcrum of the operation of the shift lever 8, and the spring load of the lever spring 9 changes the roller clutch 6 and the pinion 7 to the ring gear 1 when the engine is started.
It acts as a biting force to move to one side. The other end (pinion 7 side) of the shift lever 8 is engaged with the rear end of the roller clutch 6.

The roller clutch 6 is a power transmission device having a clutch outer 6a on the outer peripheral side and a clutch inner 6c on the inner peripheral side, and having rollers and springs inside. Pinion 7
, And the rotation of the pinion 7 is not transmitted to the motor 1.

The pinion 7 is formed integrally with the clutch inner 6c, is a power transmission mechanism for transmitting the rotational driving force of the motor 1 transmitted through the roller clutch 6 to the ring gear 11, and is integrated with the roller clutch 6. Rotor 2
Is slidable and rotatable on the output shaft 2d.

On the outer periphery of the output shaft 2d, a clutch outer 6 is provided.
A helical spline 2e is provided which engages with a helical spline 6b provided on the inner periphery of the rear end of the roller a to transmit the rotational driving force of the motor 1 to the roller clutch 6. The roller clutch 6 and the pinion 7 are slidable on the output shaft 2d by the helical spline 2e of the output shaft 2d and the helical spline 6b of the roller clutch 6, and are engaged so as to transmit the rotational driving force.

The roller clutch 6 and the pinion 7 are slid in the axial direction of the output shaft 2d via the shift lever 8 by the power of the magnetic switch 3.

When the pinion 7 meshes with the ring gear 11, the rotational driving force of the starter is transmitted to the engine.

The spigot portion 4c of the front bracket 4 of the starter is fitted with the starter mounting portion 12 of the engine.
The front bracket 4 is fixed to the flange 4 d and the bolt 10. Thereby, the starter is mounted on the engine.

A manual reset type bimetal 20 as a temperature detecting means is attached in close contact with a lead wire 1a for supplying power to the motor 1 from a motor-side fixed contact 3d of the magnetic switch 3 by a shrinkable tube 21 (lead wire). 1a). One of the circuits of the manual reset type bimetal 20 is connected to the exciting coil of the starter relay 30, and the other is grounded to the vehicle.

The lead wire 1a is an external component exposed to the outside of the motor 1 and the rear bracket 5, and the work of mounting the manually returning bimetal 20 to the lead wire 1a can be easily performed.

An alarm lamp 40 of the starter (alarm means including a buzzer, an indicator lamp, etc.) is mounted at a position such as a meter panel of the vehicle which can be confirmed by a driver. One end of the alarm lamp 40 is electrically connected to the lead wire 1a via a resistor 41, a vehicle-side connection terminal 43 for alarm means, and a motor-side connection terminal 1c for alarm means. Warning lamp 40
Is grounded to the vehicle.

In FIG. 1, the connection terminal plate 1b of the lead wire 1a is formed integrally with the motor-side connection terminal 1c for alarm means, and is fixedly fastened to the motor terminal 3m by a nut.

FIG. 3 shows an electric circuit of the starter of this embodiment. In FIG. 3, the manually resettable bimetal 20 is attached to the lead wire 1a in close contact with a contraction tube 21. Manual reset type bimetal 20 is starter relay 3
Battery 5 via the excitation coil 0 and the key switch 60.
Connected to 0. The starter relay 30 is connected to the suction coil 3f and the holding coil 3g via the switch terminal 3p of the magnetic switch 3.

Holding coil 3 of magnetic switch 3
One end of g is grounded, and one end of the attraction coil 3f is connected to the motor 1 via the motor-side fixed contact 3d, the motor terminal 3m, and the lead wire 1a. Motor side fixed contact 3
d is grounded via the motor-side connection terminal 1c for alarm means, the vehicle-side connection terminal 43 for alarm means, the resistor 41 and the alarm lamp 40. The battery-side fixed contact 3c is connected to the battery 50 via the battery terminal 3n.

That is, the power supply circuit for supplying electric power from the battery 50 (power supply source) to the motor 1 includes a battery terminal 3n and a battery-side fixed contact 3c from the (+) terminal side of the battery 50 whose (-) terminal side is grounded. , Movable contact 3
b, a motor-side fixed contact 3d, a motor terminal 3m, and a closed circuit leading to the motor 1 having one end grounded. Alarm means is connected to the power supply circuit.

Next, the operation of the starter of this embodiment will be described. 2 and 3, when the key switch 60 is turned on and the excitation coil of the starter relay 30 is energized from the battery 50, the starter relay 30 is closed and the suction coil 3f and the holding coil 3g of the magnetic switch 3 are closed from the battery 50. Is energized. When current is applied to the suction coil 3f and the holding coil 3g of the magnetic switch 3 and the plunger 3a is attracted toward the magnetic switch 3 (to the left in FIG. 2), the shift lever 8 rotates counterclockwise about the fulcrum 8c. By rotating, the roller clutch 6 and the pinion 7 are transferred to the ring gear 11 side.

The pinion 7 meshes with the ring gear 11,
When the movable contact 3b of the magnetic switch 3 comes into contact with the battery-side fixed contact 3c and the motor-side fixed contact 3d, the motor 1 is energized from the motor-side fixed contact 3d via the lead wire 1a. At this time, the motor-side connection terminal 1c for the alarm means, the vehicle-side connection terminal 43 for the alarm means, and the resistor 41
The alarm lamp 40 is also energized through the
Lights up to confirm that the starter is operating.

When the motor 1 is energized, the motor 1 rotates, and its rotational driving force is generated by the roller clutch 6, the pinion 7
Then, the power is transmitted to the engine via the ring gear 11 and the engine is started.

When the key switch 60 is returned after the start of the engine, the starter relay 30 is opened and the power supply to the magnetic switch 3 is cut off. As a result, the plunger 3a returns to the original position by the spring reaction force of the return spring 3e, the movable contact 3b, the battery-side fixed contact 3c, and the motor-side fixed contact 3d are opened, and the power supply to the motor 1 is cut off. Then, the operation of the starter stops. At this time, the power supply to the alarm lamp 40 is also cut off, the alarm lamp 40 is turned off, and it can be confirmed that the power supply to the motor 1 of the starter is cut off.

During the operation of the starter, if the key switch 60 of the vehicle fails to return, or if the engine does not start and the driver keeps the key switch 60 at the engine start position, the motor 1 is continuously operated. The power is turned on. When the motor 1 is in the continuous energized state, the temperature of each part of the starter increases. With this, the temperature of the lead wire 1a of the motor 1 also rises, but this temperature rise is faster than the temperature rise of the suction coil 3f and the holding coil 3g of the magnetic switch 3, and the lead wire 1a is thermally degraded first. Often.
Therefore, when the lead wire 1a exceeds a predetermined temperature (specified value), the manual reset type bimetal 20 is configured to be opened.

According to the above configuration, when the key switch 60 is turned on, the magnetic switch 3 is energized. When power is supplied to the magnetic switch 3, the plunger 3a is attracted, and the movable contact 3b of the magnetic switch 3 comes into contact with the battery-side fixed contact 3c and the motor-side fixed contact 3d. Thus, the motor 1 is energized from the motor-side fixed contact 3d via the lead wire 1a, and the alarm lamp 40 is turned on. After starting the engine,
When the key switch 60 is returned, the alarm lamp 40 is turned off, and it can be confirmed that the power supply to the starter has been cut off.

When the motor 1 is in the continuous energizing state, the alarm lamp 40 remains lit even after the key switch 60 is returned to warn of the continuous energizing state. When the temperature exceeds a predetermined temperature, the energizing coil of the starter relay 30 is cut off by opening the manually resettable bimetal 20, the energizing of the holding coil 3g of the magnetic switch 3 is cut off by opening the starter relay 30. Then, the plunger 3a returns to the original position by the spring reaction force of the return spring 3e.

When the plunger 3a returns to the original position by the spring reaction force of the return spring 3e, the movable contact 3b, the battery-side fixed contact 3c and the motor-side fixed contact 3d are opened, and the power supply to the motor 1 is cut off. Before the lead wire 1a, which is an external component of the starter, is thermally degraded, the starter is stopped and the alarm lamp 40 is turned off. That is, the manual return type bimetal 20, the starter relay 30, and the magnetic switch 3 constitute a means for interrupting the current supply to the motor 1.

In this embodiment, the manual reset type bimetal 20 is disposed in close contact with the lead wire 1a, and the manual reset type bimetal 20 is connected to the exciting coil of the starter relay 30, and the resistor 41 and the alarm lamp 40 are connected. Are electrically connected to the lead wire 1a of the starter.

The lead wire 1a is an external component exposed to the outside of the motor 1 and the rear bracket 5, and the operation of attaching the manually resettable bimetal 20 to the lead wire 1a can be easily performed.

When the motor 1 is continuously energized due to a return failure of the key switch 60 and the temperature of the lead wire 1a exceeds a predetermined temperature, the manually resettable bimetal 2
0 is opened, the power supply to the motor 1 is cut off, the starter is stopped, and the alarm lamp 40 is turned off. Then, even if the temperature of the lead wire 1a decreases due to natural heat radiation, the suction coil 3f of the magnetic switch 3 is used until the manually resettable bimetal 20 is returned by manual operation.
And the holding coil 3g is not energized. Therefore, as in the case where a normally-closed bimetal is used as current supply cutoff means, the temperature drops due to natural heat radiation, the normally-closed bimetal closes automatically, and the Suction coil 3
f and the holding coil 3g, so that it is possible to prevent the motor 1 from being energized again.

Further, when the contact between the movable contact 3b of the magnetic switch 3 and the fixed contact 3b on the battery side and the fixed contact 3d on the motor side occurs and the motor 1 is continuously energized, the key switch 60 is turned on. There is also an effect that the alarm lamp 40 remains lit even when the motor 1 is returned, and that the motor 1 is in the continuous energizing state.

Therefore, when the motor 1 of the starter is continuously energized due to a return failure of the key switch 60 or the like, the energization of the starter is cut off before the external components such as the insulating member of the lead wire 1a are thermally degraded. At the same time, the alarm means notifies that the motor 1 is in the continuous energizing state,
A highly safe engine starting device can be realized without significantly modifying existing devices.

Next, the connection terminal plate 1b of the lead wire 1a, the motor-side connection terminal 1c for alarm means, and the vehicle-side connection terminal 43 for alarm means will be described in more detail.

The connection terminal plate 1b of the lead wire 1a is stamped and formed from a copper plate integrally with the motor-side connection terminal 1c for alarm means, and has a cross-sectional area sufficient for a large current of several hundred amperes to flow. One end of the connection terminal plate 1b is mounted on a screw portion of the motor terminal 3m formed integrally with the motor-side fixed contact 3d, and is fixedly fastened by a nut. The end of the lead wire 1a is joined to the connection terminal plate 1b by welding, soldering, caulking or the like, avoiding the motor-side connection terminal 1c for alarm means.

The alarm-side motor-side connection terminal 1c integrally formed in a protruding shape so as to protrude from the end face of the connection terminal plate 1b has a hole for retaining at the tip end side. Also,
In order to improve the workability when the vehicle-side connection terminal 43 for the warning means is plugged in, the motor-side connection terminal 1c for the warning means is used.
Is formed with a tapered portion on the tip side. The motor side connection terminal 1c for the alarm means is a male terminal.

On the other hand, the vehicle-side connection terminal 43 for the warning means is a female terminal, and the motor-side connection terminal 1 for the warning means is used.
c. By pulling out the vehicle side connection terminal 43 for the warning means, it can be removed from the motor side connection terminal 1c for the warning means.

Therefore, the vehicle-side connection terminal 4 for the alarm means
3 can be easily connected and disconnected without using a tool or the like, and a wire connection work of the alarm means can be provided. Since there is a retaining hole at the end of the motor-side connection terminal 1c for the alarm means, the vehicle-side connection terminal 4 for the alarm means is provided.
No. 3 does not easily fall off due to engine vibration or the like. Further, since a tapered portion is provided on the tip end side of the motor-side connection terminal 1c for the warning means, the insertion connection of the vehicle-side connection terminal 43 for the warning means is easily performed. Furthermore, since the motor-side connection terminal 1c for the alarm means is formed integrally with the hard connection terminal plate 1b, the connection work does not buckle when the vehicle-side connection terminal 43 for the alarm means is inserted and connected. It is easier. Furthermore, since the motor side connection terminal 1c for the alarm means is integrally formed with the connection terminal plate 1b of the lead wire 1a, the number of parts does not increase, and the increase in the manufacturing cost of the starter is suppressed. An inexpensive starter can be provided.

According to the first embodiment described above, the work of connecting the wiring of the alarm means when assembling the starter to the vehicle is as follows.
Since the vehicle-side connection terminal 43 for the warning means of the warning lamp 40 only needs to be inserted into the motor-side connection terminal 1c for the warning means integrally formed with the connection terminal plate 1b of the lead wire 1a of the starter shown in FIG. The connection work of the alarm means is completed in time.

FIG. 4 shows the appearance of a starter according to a second embodiment of the present invention. Since the basic configuration of the starter and the configuration of the electric circuit are the same as those of the first embodiment, a detailed description thereof will be omitted, and only differences from the first embodiment will be described.

In FIG. 4, the motor-side connection terminal 1d for the alarm means is formed separately from the connection terminal plate 1b of the lead wire 1a, and is fixed together with the connection terminal plate 1b to the motor terminal 3m by a nut. Even with such a configuration, the work of connecting the wiring of the alarm means can be facilitated similarly to the first embodiment, and the workability of assembling the starter to the vehicle can be improved.

Further, in the second embodiment, it is possible to provide the motor-side connection terminal 1d for the alarm means only in the starter provided with the alarm means for the starter.

[0056]

According to the present invention described above, the work of connecting the alarm means to the wiring can be facilitated, and the workability of assembling the starter to the vehicle can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an external configuration of a starter according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing an internal configuration of a starter according to the first embodiment of the present invention.

FIG. 3 is a circuit diagram showing an electric circuit configuration of a starter according to the first embodiment of the present invention.

FIG. 4 is a perspective view showing an external configuration of a starter according to a second embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Motor, 1a ... Lead wire, 1b ... Lead wire connection terminal board, 1c, 1d ... Motor side connection terminal for alarm means, 2 ...
Rotor, 3 ... magnetic switch, 3a ... plunger, 3b ... movable contact, 3c ... battery side fixed contact, 3d
... Motor side fixed contact, 3f ... Suction coil, 3g ... Holding coil, 6 ... Roller clutch, 7 ... Pinion, 8 ... Shift lever, 11 ... Ring gear, 20 ... Bimetal with manual reset, 30 ... Starter relay, 40 ... Alarm lamp , 41 ...
Resistance 43, vehicle-side connection terminal for alarm means, 50 battery, 60 key switch.

Claims (4)

[Claims] A motor for generating a rotational driving force; a mechanism for transmitting the rotational driving force of the motor to an engine; a power supply circuit for supplying power supplied from a power supply source to the motor; Alarm means connected to a circuit and notifying the energization or interruption of electric power supplied to the motor, wherein the power supply circuit includes terminal means for connecting the alarm means. Starter to do. 2. A motor for generating a rotational driving force, a mechanism for transmitting the rotational driving force of the motor to an engine, and switch means for energizing and interrupting electric power supplied to the motor.
A power supply circuit for supplying power to the motor from a power supply source via the switch means; and an alarm means connected to the power supply circuit and for notifying whether the power supplied to the motor is energized or cut off. The power supply circuit includes a terminal unit for connecting the alarm unit. 3. The starter according to claim 2, wherein a lead wire connecting terminal plate for connecting a lead wire, which is a power supply circuit from the switch means to the motor, to the switch means, and the alarm means are connected. And a terminal means for forming the starter. 4. A starter according to claim 2, wherein said terminal means is a male terminal integrally formed on a lead wire connection terminal plate, and said alarm means connection terminal is detachably joined thereto. A starter characterized in that: