CN218678662U - Water-cooling aviation motor structure - Google Patents

Abstract

The utility model discloses a water-cooling aviation motor structure, which comprises a water-cooling structure, a main shaft, a rotor fixed on the main shaft in a sleeving manner, and a stator matched with the rotor, wherein the shell of the motor is connected with a water inlet, a water outlet, an oil inlet and an oil outlet and a three-phase electric port, the rear end of the main shaft is supported by a bearing, and a snap ring, a flange plate and a rear end cover at the rear part of the main shaft are matched and fixed; the front part of the main shaft is fixed by a front end cover; the water-cooling structure of cover on the stator wraps up the stator and rotor is complete, the heat of better absorption motor, compare traditional copper pipe water-cooling route, the water inlet and the delivery port setting of cooling water course are on the shell of motor, the device detachably of inlet outlet sets up on the mounting groove, set up the inlet outlet device that cooling water course and can freely install, carry out the heat dissipation through cooling water course to the motor and handle, the installation effectiveness of also effectual improvement motor for the equipment that motor water-cooling casing can adapt to is more extensive.

Description

Water-cooling aviation motor structure

Technical Field

The utility model relates to an aerospace motor cooling technology field, concretely relates to water-cooling aviation motor structure.

Background

At present, the country vigorously supports and promotes high-efficient aeroengine and come energy-concerving and environment-protective, and it is the key of aeroengine energy-concerving and environment-protective to improve motor efficiency and reduce the energy consumption, and the main loss of aeroengine energy is on the thermal resistance of copper and iron, finally in giving off the air with thermal form, if the heat that the motor sent can not in time distribute away, will make motor temperature constantly rise, and motor resistance also can sharply rise to will reduce the efficiency of motor.

The cooling method and the cooling system of the aviation motor change thousands, the existing water cooling method adopts a water channel, the heat is taken away under the flowing of the cooling water, wherein the water channel surrounds the motor stator base or the shell, the structure is smooth, the channel sectional area is more balanced, more heat can be taken away, but the cooling water flows to the other end from one end of the cooling water, the cooling water can be continuously heated after passing through the water channel, thus the temperature is continuously increased, the cooling water inlet part takes away more heat due to large temperature difference, the tail end temperature difference of the cooling water outlet takes away less heat due to small temperature difference, however, the whole motor is uniform in heating, the temperature difference at two ends of the motor is larger, the internal parameter difference and the performance deterioration are caused, the motor is possibly caused to be locally overheated or even burnt, meanwhile, the cooling water inlet and outlet are positioned at two ends, and the cooling system is inconvenient to install. The specific heat and the heat conductivity coefficient of water are much larger than those of gas, and water is used as a cooling medium, so that the gas-cooled water has the advantages of low price, no toxicity, no combustion supporting, no explosion hazard and the like. The water cooling technology is adopted, so that heat generated by the loss of the stator winding of the generator does not pass through the iron core any more, the temperature rise of the stator iron core is generated by the loss of the iron core, and the temperature rise is greatly reduced. The temperature difference between the iron core and the base of the inner cooling motor is relatively small, so that the thermal stress of the iron core is easy to control.

Therefore, the cooling effect of water cooling is extremely obvious, the electromagnetic load allowed to be borne is higher than that of air cooling and hydrogen cooling, and the utilization rate of materials is improved. And the water cooling mode can effectively reduce the temperature difference of the winding bar, so that the temperature distribution of the stator winding of the whole generator is uniform, and the service life of the motor can be prolonged. The water cooling has inevitable examination, when the water purification degree is not enough, scaling and oxide blockage of the cooling water pipe are easy to generate, and in order to solve the problem, a water-cooling aero motor structure capable of solving the problems is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a water-cooling aeronautical motor structure, the water inlet and the delivery port setting of cooling water course are on the shell of motor, carry out the heat dissipation through the cooling water course to the motor and handle, also the installation effectiveness of effectual improvement motor for the equipment that motor water-cooling casing can adapt to is more extensive.

The purpose of the utility model is realized through the following technical scheme: a water-cooling aviation motor structure comprises a motor shell, a main shaft, a rotor assembly fixedly sleeved on the main shaft, a stator assembly cooperatively matched with the rotor assembly and a cooling structure; the motor shell comprises a front end cover and a rear end cover, the main shaft is supported by a bearing, the rear end of the main shaft is matched and fixed by a flange plate and the rear end cover, and the front end of the main shaft is provided with a bearing and a gasket which play a supporting role and are fixed with the front end cover; and a cooling water channel of the water cooling structure is sleeved on the stator assembly.

Furthermore, a water inlet, a water outlet, an oil inlet, an oil outlet and a three-phase electric port are formed in the motor shell, and the three-phase electric port is connected with a three-phase wire box of a three-phase electric wire led out by the inner stator and the inner rotor.

Furthermore, three-phase stator windings are arranged outside the rotor assembly, and the three-phase stator windings are separated from each other by 120 degrees of electrical angle.

Furthermore, the cooling water channel of the water cooling structure is an S-shaped curve buffer water channel.

Furthermore, the water inlet and the water outlet are separated by a partition plate, so that the water absorbing heat is completely discharged, and the heat dissipation effect is ensured.

The utility model has the advantages that: the utility model discloses it has the corrosion to compare traditional copper pipe water-cooling route, block up, hidden danger such as possibility of seepage, then produce the local overheat of winding and burn out, the corruption of hollow copper conductor, the safety and the economic operation of generator are directly endangered, water swivel and each sealed point department, owing to bear the problem that water pressure leaked, will cause short circuit and electric leakage danger, the water inlet and the delivery port setting of cooling water course are on the shell of motor, the device detachably at inlet outlet sets up on the mounting groove, set up the inlet outlet device of cooling water course and freely installing, carry out the thermal treatment through the cooling water course to the motor, the installation effectiveness of also effectual improvement motor, make the equipment that motor water-cooling casing can adapt to more extensive.

Drawings

FIG. 1 is a schematic view of the structure of the device of the present invention;

FIG. 2 is a schematic view of the internal structure of the device of the present invention;

FIG. 3 is a schematic sectional view of the structure of the device of the present invention;

FIG. 4 is a schematic view of the cooling water channel of the present invention;

in the figure, 1-oil outlet, 2-water inlet, 3-inner hexagon bolt I, 4-three-phase wire box, 5-three-phase electric port, 6-inner hexagon bolt II, 7-main shaft, 8-oil inlet, 9-front end cover, 10-motor shell, 11-water outlet, 12-rear end cover, 13-rotor component, 14-bearing, 15-flange plate, 16-stator component, 17-three-phase stator winding and 18-gasket.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following description, and for convenience of description, the position of the rear end cover is defined as "rear", and the position of the front end cover is defined as "front".

Example 1

Referring to fig. 1-2, the water-cooled aero motor structure provided in this embodiment includes a water-cooled structure, a main shaft 7, a rotor assembly 13 fixed to the main shaft, and a stator assembly 16 disposed inside and engaged with the rotor, wherein a motor housing 10 is connected to a water inlet 2, a water outlet 11, an oil inlet 8, an oil outlet 1, and a three-phase electric port 5, a bearing 14 is supported at the rear end of the main shaft, and a snap ring, a flange 15, and a rear end cover 12 at the rear end of the main shaft are fixed in an engaged manner; the water cooling structure also comprises a bearing 14 and a gasket 18 which are arranged at the front end of the main shaft for supporting, and the front part of the water cooling structure is fixed by a front end cover 9 and sleeved on the stator.

Further, the cooling water channel of the water cooling structure is in the shape of an S-shaped curve buffer water channel, as shown in fig. 4.

Furthermore, the water inlet 2 and the water outlet 11 of the cooling water channel are arranged on the motor shell, and the water inlet and the water outlet are detachably arranged on the mounting groove.

Furthermore, the water cooling structure sleeved on the stator completely wraps the stator and the rotor, and the magnetic field heat generated by the rotation of the motor rotor assembly 13 and the motor stator is better absorbed.

Furthermore, the water inlet and the water outlet of the cooling water channel are separated by the partition plate, so that the water absorbing heat is completely discharged, and the heat dissipation effect of the motor is better ensured.

Further, be provided with water inlet 2 and delivery port 11, oil inlet 8, oil-out 1 and three-phase electric port 5 on the motor housing, compare in prior art the water-cooling and the mode of oil inlet and outlet installation on different parts, reduced the motor with the volume of specification, practice thrift the active material of motor preparation, reduce the cost of manufacture of motor.

Furthermore, hexagon socket head cap screw I is used for fixed rear end housing and motor housing, and hexagon socket head cap screw II is used for fixed front end housing and motor housing, and both all can make things convenient for fastening and dismantling between end cover and the motor housing.

Example 2

Referring to fig. 1-2, the water-cooling aero motor structure provided by this embodiment includes a water-cooling structure, a main shaft 7, a rotor assembly 13 fixed on the main shaft, and a stator assembly 16 provided inside and engaged with the rotor, wherein a motor housing 10 is connected to a water inlet 2, a water outlet 11, an oil inlet 8, an oil outlet 1, and a three-phase electric port 5, a bearing 14 is supported at the rear end of the main shaft, a flange 15 at the rear end of the main shaft is engaged and fixed with a rear end cover 12, and the water-cooling aero motor structure further includes a bearing 14 and a gasket 18 installed at the front end of the main shaft 7 for supporting, the front end of the main shaft is fixed with a front end cover 9, and the water-cooling structure is sleeved on the stator assembly 16.

Referring to fig. 1, 2 and 3, in the present embodiment, a three-phase electric port 5 is connected to a three-phase wire box 4, and a three-phase electric wire led out from a stator and a rotor is provided inside the three-phase electric port.

Also included is a rotor assembly 13 (rotating magnetic field) inside the aero-motor. Outside the magnetic field there is a three-phase stator winding 17 with 3 sets of coils (three-phase windings) which are separated from each other by 120 electrical degrees. As the rotor assembly 13 rotates, the rotating magnetic field causes the stationary three-phase stator windings 17 to cut the magnetic induction lines.

The working process is as follows: on the basis of aforementioned structure, earlier add appropriate amount lubricating oil through oil inlet 8 before the work, in order to avoid the motor to rotate and produce dry friction, cause the damage to the motor, then add cold water at water inlet 2 and flow out from delivery port 11 until water, but be full of whole cooling water course side operation machine when water, at the normal moving in-process of motor, can be through the temperature of aircraft control system real-time supervision motor cooling water course, can accelerate the speed that cold water flowed into when the high temperature, be convenient for better absorption motor's heat like this, reach better cooling effect.

The water cooling device aims at the hidden troubles of corrosion, blockage, leakage and the like existing in the whole set of water cooling pipeline of the traditional aviation motor, then the winding is locally overheated and burnt, the corrosion of the hollow copper wire directly endangers the safe and economic operation of the generator, and the water joint and each sealing point cause the danger of short circuit and electric leakage due to the problem of water pressure leakage.

Compare traditional copper pipe water-cooling route, the utility model discloses the water inlet and the delivery port setting of cooling water course are on the shell of motor, and the device detachably at inlet outlet sets up on the mounting groove, sets up the inlet outlet device that cooling water course and can freely install, carries out the heat dissipation treatment to the motor through cooling water course, the installation effectiveness of also effectual improvement motor for the equipment that motor water-cooling casing can adapt to is more extensive.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (5)

1. The utility model provides a water-cooling aeronautical motor structure which characterized in that: the motor structure comprises a motor shell (10), a main shaft (7), a rotor assembly (13) fixedly sleeved on the main shaft, a stator assembly (16) matched with the rotor assembly in a cooperative manner, and a cooling structure; the motor shell (10) comprises a front end cover (9) and a rear end cover (12), the main shaft (7) is supported by a bearing (14), the rear end of the main shaft is matched and fixed by a flange plate (15) and the rear end cover (12), and the front end of the main shaft is provided with a bearing and a gasket (18) which play a supporting role and are fixed with the front end cover (9); and a cooling water channel of the water cooling structure is sleeved on the stator assembly.

2. The water-cooled aeronautical motor structure of claim 1, characterized in that: the motor is characterized in that a water inlet (2), a water outlet (11), an oil inlet (8), an oil outlet () and a three-phase electric port (5) are formed in the motor shell, and the three-phase electric port is connected with a three-phase wire box (4) of a three-phase electric wire led out from an internal stator and a rotor.

3. The water-cooled aeronautical motor structure of claim 1, characterized in that: and three-phase stator windings (17) are arranged outside the rotor assembly (13), and are separated from each other by 120 degrees of electrical angle.

4. The water-cooled aeronautical motor structure of claim 1, characterized in that: and the cooling water channel of the water cooling structure is an S-shaped curve buffer water channel.

5. The water-cooled aeronautical motor structure of claim 2, characterized in that: the water inlet and the water outlet are separated by a partition board, so that the water absorbing heat is completely discharged, and the heat dissipation effect is ensured.

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