CN2826806Y

CN2826806Y - Integration starting magnetor

Info

Publication number: CN2826806Y
Application number: CN 200520122615
Authority: CN
Inventors: 冯国雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-17
Filing date: 2005-09-17
Publication date: 2006-10-11
Anticipated expiration: 2015-09-17

Abstract

The utility model relates to an integrated starting magnetor, which is suitable for a small gasoline engine to be started and generate electricity. A rotor housing of the magnetor is provided with an insulating plate, a switch plate and a carbon brush, wherein the carbon brush and the rotor housing are insulated, and the utility model is used for avoiding that a bearing and a bearing seat are ablated by electricity resulted from current passing when a starting motor works. After an engine is started, a shaft sleeve is provided with a fan impeller, wind force generated by rotation is used for fanning away carbon powder depositing among commutator segments resulted from the abrasion of the carbon brush during starting the starting motor, and short circuit among the segments is prevented.

Description

Integrated starter magneto

Affiliated technical field

The utility model belongs to the magneto technical field.

Background technology

The starting and the power supply of miniature gasoline engine (as motorcycle engine), generally be separately independently, promptly drive bent axle and rotate, thereby make engine operation with permanent magnet DC motor, power to engine by another permanent magnet generator, satisfy needs such as engine ignition, illumination, charging.In order to reduce cost, simplified structure, the motor of the starting and the two kinds of functions of generating electricity has appearred again having in recent years, starter magneto, the carbon brush of this motor is installed on the rotor case through carbon brush holder, rotor case is fixed on the bent axle by clamp nut, is with bearing on the bent axle, and Bearing Installation is on the bearing pedestal on the casing.Rotor case is a metalwork, also is a conductor, is linked together by conductor (rotor case) between the carbon brush, does short circuit and connects use, and commutator is installed on the stator, and the part commutator segment of commutator connects the starting winding, all the other commutator segment ground connection.The starter magneto of this spline structure is when work, the process of tens amperes big electric current is: power supply EC positive pole-stator winding-commutator segment-carbon brush-rotor case-bent axle-bearing-bearing pedestal-casing-power supply EC negative pole, and when big electric current can produce electric spark through a bearing that rotates.Bearing can be ablated by electricity like this, shortens bearing useful life, and bearing pedestal also can be damaged and cause engine to damage simultaneously.Actuating motor carbon dust after the carbon brush wearing and tearing in starting process is deposited on and forms short circuit between commutator segment easily in addition, burns out motor, the poor reliability of this motor, and short being difficult in life-span promotes.

Summary of the invention

The purpose of this utility model is the deficiency that exists at existing starter magneto.Design a kind of integrated starter magneto, it not only has the starting and the two kinds of functions of generating electricity, and can also effectively avoid short circuit between the commutator segment on the commutator, burns out motor.Bearing on the bent axle and the bearing pedestal on the casing are not ablated by tens amperes large-current electric in the actuating motor starting process, damage engine.

The technical scheme that its technical problem that solves the utility model adopts is: integrated starter magneto, stator seat (10) is fixed on the casing (11), iron core (16) is fixed on the stator seat (10), starting winding A1 is arranged on the iron core (16), B1, C1, A2, B2, C2, generating winding F, commutator (15) is fixed on the iron core (16), commutator segment (8) is arranged on the commutator (15), rotor case (3) is fixed on the axle sleeve (1) by rivet (14), bent axle (13) is by in the engine housing (11), pass bearing (12), stator seat (10), iron core (16), commutator (15), it is fixing in aggregates with bent axle (13) axle sleeve (1) to be enclosed within the last clamp nut of axle sleeve (1) (2), switchboard (5) is installed on the rotor case (3), insulation board (4), permanent magnet (9), carbon brush (7) is installed on the switchboard (5), there is a conducting ring (18) to do to open circuit connection between the carbon brush (7), carbon brush (7) one ends and commutator segment (8) near, the other end and spring (6) near, spring (6) other end and switchboard (5) are fixedly linked, insulation board (4) is fixed on the insulating effect that plays carbon brush (7) and rotor case (3) between rotor case (3) and the switchboard (5).Blast fan (17) is installed in the last commutator segment (8) on commutator (15) of axle sleeve (1).

The utility model beneficial effect is, bearing pedestal and the bearing of the big electric current of actuating motor in starting process on the casing.The process of electric current is, power supply EC positive pole-stator winding-commutator segment-carbon brush-conducting ring-carbon brush-commutator segment-iron core-stator seat-casing-power supply EC negative pole has avoided the process of big electric current in the actuating motor starting process to cause bearing pedestal and bearing on the casing to be damaged by the electricity ablation like this.

The wind fan that is installed in the blast fan rotation generation on the axle sleeve during engine operation removes the carbon powder powder of carbon brush abrasive deposit between commutator segment in the actuating motor starting process, avoids the short circuit between the commutator segment to burn out motor.During engine operation, be installed in the switchboard on the rotor case, the carbon brush of installing on the switchboard, because carbon brush is centrifugal action when rotated, according to the weight of design carbon brush and the elastic force of spring, when being in suitable rotating speed, remove at engine carbon brush to commutator segment near, reach carbon brush and separate with commutator segment, thus commutator segment and carbon brush raising not easy to wear motor useful life.

Description of drawings

Fig. 1 is this motor embodiment assembly structure schematic diagram;

Fig. 2 is carbon brush, spring, a conductive ring structure schematic diagram on this motor one embodiment switchboard;

Fig. 3 is this motor electricity winding schematic diagram;

Fig. 4 is this motor electric connection structure schematic diagram;

1. axle sleeves among the figure, 2. clamp nut, 3. rotor case, 4. insulation board,

5. switchboard, 6. spring, 7. carbon brush, 8. commutator segment,

9. permanent magnet, 10. stator seat, 11. casings, 12. bearings,

13. bent axle, 14. rivets, 15. commutators, 16. iron cores,

17. blast fan, 18. conducting rings, 19. bearing pedestals, 20. leads,

Embodiment

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, its stator seat of integrated starter magneto (10) is fixed on the casing (11), iron core (16) is fixed on the stator seat (10), starting winding A1 is arranged on the iron core (16), B1, C1, A2, B2, C2, generator windings F, commutator (15) is fixed on the iron core (16), commutator segment (8) is arranged on the commutator (15), wherein 6 meet starting winding A1 successively, B1, C1, A2, B2, the end of C2, all the other commutator segments (8) start winding A1 through lead (20) ground connection, B1, C1, A2, B2, another termination power of C2 EC positive pole.Rotor case (3) is fixed on the axle sleeve by rivet (14), bent axle (13) is by in the engine housing (11), pass bearing (12), stator seat (10), iron core (16), commutator (15) are enclosed within on the axle sleeve (1), one clamp nut (2) is fixing in aggregates with bent axle (13) axle sleeve (1), switchboard (5) is installed, insulation board (4), permanent magnet (9) on the rotor case (3).Carbon brush (7) is arranged on the switchboard (5), has a conducting ring (18) to do short circuit between the carbon brush (7) and be electrically connected, carbon brush (7) one ends and commutator segment (8) near, the other end and spring (6) near, the other end of spring (6) and switchboard (5) are fixedly linked.Insulation board (4) is fixed on the insulating effect that plays carbon brush (7) and rotor case (3) between rotor case (3) and the switchboard (5), and blast fan (17) is installed in the last commutator segment (8) on commutator (15) of axle sleeve (1).

This machine operation process is referring to Fig. 1, Fig. 2, Fig. 3, the anodal process of power supply EC K switch when Fig. 4 actuating motor starts, connect, power supply produces rotating magnetic field through stator winding-commutator segment-carbon brush-conducting ring-carbon brush-commutator segment-iron core-stator seat-casing-power cathode conducting motor, make rotor case (3) rotate an angle, so carbon brush (7) rotates synchronously with rotor case (3), carbon brush this moment (7) will start winding B1 (or C1, A2, B2, C2, A1) connection again, produce a rotating magnetic field again, make rotor case (3) rotate an angle.This process is carried out continuously, and rotor case (3) is rotated continuously; Drive bent axle (1) and rotate, the big electric current of this actuating motor in starting process can electric ablation bearing (12) and bearing pedestal (19) through mode, avoids the engine damage.When engine operation, engine drives bent axle (13) and rotor case (3) blast fan (17) rotation, by the wind-force of blast fan (17) fan-out, fan removes the carbon powder powder of carbon brush in the actuating motor starting process (7) abrasive deposit between commutator segment (8), avoids short circuit between the commutator segment (8).Permanent magnet (9) is installed on the rotor case (3), and interacting with generating winding F generates the electromotive force output power.Owing to be installed in carbon brush (7) on the switchboard (5) on the rotor case (3) because action of centrifugal force, according to the weight of design carbon brush (7) and the elastic force of spring (6), suitable rotating speed (engine idle rotation) remove carbon brush (7) to commutator segment (8) near, reach separating of carbon brush (7) and commutator segment (8).

Claims

1. integrated starter magneto, stator seat (10) is fixed on the casing (11), iron core (16) is fixed on the stator seat (10), starting winding A1 is arranged on the iron core (16), B1, C1, A2, B2, C2, generating winding F, commutator (15) is fixed on the iron core (16), commutator segment (8) is arranged on the commutator (15), rotor case (3) is fixed on the axle sleeve (1) by rivet (14), bent axle (13) is by in the engine housing (11), pass bearing (12), stator seat (10), iron core (16), commutator (15), it is fixing in aggregates with bent axle (13) axle sleeve (1) to be enclosed within the last clamp nut of axle sleeve (1) (2), rotor case (3) is equipped with switchboard (5), insulation board (4), permanent magnet (9), carbon brush (7) is installed on the switchboard (5), connect by a conducting ring (18) between the carbon brush (7), carbon brush (7) one ends and commutator segment (8) near, the other end and spring (6) near, spring (6) other end is fixedlyed connected with switchboard (5), it is characterized in that: insulation board (4) is fixed between rotor case (3) and the switchboard (5).Blast fan (17) is installed on the axle sleeve (1).

2. according to claims 1, blast fan (17) is installed in the last commutator segment (8) on commutator (15) of axle sleeve (1).