CN204886566U - A fully enclosed oil-cooled permanent magnet generator - Google Patents

Abstract

The utility model discloses a cold permanent magnet generator of totally closed oil, it is high -speed rotatory that prime mover power interface drives the generator, and stator winding carries out the rotation of cutting with the produced magnetic field of permanent magnet on the rotor and produces the current potential, risees along with sending out motor rotation number, and generator voltage also risees. Rise to when being close rated revolution when the rotational speed, generator voltage stabilization is on required magnitude of voltage. The generator is connected with the dc -to -ac converter, through the required power of appropriate inverter output. Utilizing stator housing inner chamber opening, at the installation tang of its rear end face design rear end cap, being connected formation heat dissipation oil duct with the rear end cap, the cooling machine oil that flows dispels the heat to motor stator. The utility model provides a heavy or the relatively poor difficult problem of water -cooling type generator structural stability of traditional air -cooled type generator structure has been solved to novel cooling method's generator structure.

Description

A kind of totally-enclosed oil cooling permanent magnet generator

Technical field

The utility model relates to a kind of permanent magnet generator, is specifically related to a kind of totally-enclosed oil cooling permanent magnet generator.

Background technology

Mute generator group is often installed in small space, very high to generator unit structure dimensional requirement.Tradition Wind-cooling type generator needs special heat dissipation wind channel, and physical dimension can not meet requirement; Water-cooling type generator, because of too fast to generator frame cooling rate, easily cause generator unit stator material deformation, even ftractures, and also can affect sealing between bore of stator and heat radiation road for a long time.

For solving the problem, summing up a kind of totally-enclosed oil cooling permanent magnet generator, by generator unit stator housing cavity design heat radiation oil duct, utilizing the cooling machine oil of flowing to dispel the heat to generator unit stator.The relative water cooling weak effect of cooling machine oil radiating effect some, but very little on the impact of generator workpiece, and corrosion phenomenon can not be caused to workpiece for a long time.

Summary of the invention

The purpose of this utility model there are provided a kind of totally-enclosed oil cooling permanent magnet generator, solves a difficult problem for traditional Wind-cooling type electric generator structure heaviness or water-cooling type electric generator structure less stable.

The utility model patent is achieved like this, a kind of totally-enclosed oil cooling permanent magnet generator, mainly comprises prime mover power interface, engine rotor housing, permanent magnet, stator combination, stator case, oil inlet pipe, cooling machine oil, oil radiator and oil return pipe; It is characterized in that: permanent magnet is inlaid on rotor case, rotor case is bolted on prime mover flywheel, forms a rotation combination; Stator combination (stator core of band winding) is bolted on stator case, and stator case is bolted on prime mover bell housing again, forms a fixed Combination; Under operating state, chemical energy (bavin Water Oil Or Gas) is converted into mechanical energy (prime mover flywheel High Rotation Speed) by prime mover, thus the permanent magnet on rotor driven housing rotates, the magnetic line of force that the winding cutting permanent magnet in stator combination produces, and finally produces electromotive force.The seal chamber of splendid attire cooling machine oil is designed with in stator case, cavity upper and lower is respectively equipped with oil inlet pipe, oil return pipe, be provided with oil radiator between oil inlet pipe and oil return pipe, electronic oil pump guarantee of work machine oil circulates between stator case and oil radiator, and distribute heat.

Oil radiator having electronic oil pump described in the utility model.

Prime mover power interface drive electrical generators High Rotation Speed described in the utility model, the magnetic field that stator winding and epitrochanterian permanent magnet produce is carried out circumgyration incision and is produced electromotive force, and along with generator speed raises, generator voltage also raises.When rotating speed is elevated to close to rated speed, generator voltage is stabilized on required magnitude of voltage.Generator is connected with inverter, the power supply required for being exported by suitable inverter.Utilize stator case lumen openings, the installation seam of face design back lid, is connected to form heat radiation oil duct with rear end cap in its back-end, and the cooling machine oil of flowing dispels the heat to motor stator.

Generator unit stator described in the utility model High Rotation Speed relative to rotor, produce electromotive force, High Rotation Speed makes generator unit stator temperature very high, stator case lumen openings is utilized to design heat radiation oil duct, the electronic oil pump of oil radiator drive cooling machine oil pass through into, return machine oil pipe and flow fast between generator and oil radiator, motor stator is dispelled the heat.

The utility model has the advantages that: described totally-enclosed oil cooling permanent magnet generator is mainly used in place generator size and weight being had to strict demand, especially with the generating equipment that oil cooling type prime mover is supporting.Generator is dispelled the heat to body by machine oil, does not need heat dissipation wind channel and the radiator fan of conventional electric generators, and structure is simple, easily and prime mover is supporting is arranged in less casing.Machine oil cooling rate is slower than water, can not suddenly cold and hot, and overall structure stability is more superior than water-cooling type generator, and machine oil can not corrode generator unit stator workpiece for a long time in addition, and lubricates some parts of generator by appropriate design.Solve a difficult problem for traditional Wind-cooling type electric generator structure heaviness or water-cooling type electric generator structure less stable.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model patent.

In the drawings, prime mover power interface is 1, engine rotor housing is 2, permanent magnet is 3, stator combination is 4, stator case is 5, oil inlet pipe is 6, cooling machine oil is 7, oil radiator is 8, oil return pipe is 9.

Embodiment

As shown in Figure 1, the utility model patent comes work and enforcement like this, a kind of totally-enclosed oil cooling permanent magnet generator, it comprises the device such as prime mover power interface 1, rotor case 2, permanent magnet 3, stator combination 4, stator case 5, oil inlet pipe 6, cooling machine oil 7, oil radiator (having electronic oil pump) 8, oil return pipe 9; It is characterized in that: described prime mover power interface 1 drive electrical generators rotor case 2 and permanent magnet 3 High Rotation Speed, the magnetic field that stator combination 4 and epitrochanterian permanent magnet 3 produce is carried out circumgyration incision and is produced electromotive force.Structure utilizes stator case 5 lumen openings, the installation seam of face design back lid in its back-end, heat radiation oil duct is connected to form with rear end cap, cooling machine oil 7 flows at motor stator and oil radiator (having electronic oil pump) 8 through oil inlet pipe 6, oil return pipe 9, dispels the heat to motor stator combination.

Prime mover power interface drive electrical generators High Rotation Speed, the magnetic field that stator winding and epitrochanterian permanent magnet produce is carried out circumgyration incision and is produced electromotive force, and along with generator speed raises, generator voltage also raises.When rotating speed is elevated to close to rated speed, generator voltage is stabilized on required magnitude of voltage.Generator is connected with inverter, the power supply required for being exported by suitable inverter.

Claims (2)

1. A fully enclosed oil-cooled permanent magnet generator, mainly including a prime mover power interface, an engine rotor housing, a permanent magnet, a stator assembly, a stator housing, an oil inlet pipe, cooling oil, an oil radiator, and an oil return pipe; its characteristics It is: the permanent magnet is embedded on the rotor shell, and the rotor shell is fixed on the flywheel of the prime mover by bolts to form a rotating combination; the stator assembly is fixed on the stator shell by bolts, and the stator shell is fixed on the flywheel shell of the prime mover by bolts above, to form a fixed combination; the stator housing is designed with a sealed cavity containing cooling oil, and the upper and lower sides of the cavity are respectively equipped with an oil inlet pipe and an oil return pipe, and an oil radiator is arranged between the oil inlet pipe and the oil return pipe. Oil circulates between the stator housing and the oil radiator. 2. A fully enclosed oil-cooled permanent magnet generator according to claim 1, characterized in that: said oil radiator is equipped with an electronic oil pump.