CN106208521A - A kind of gas cooled electrical machine - Google Patents

Abstract

The present invention proposes a kind of gas cooled electrical machine, including body, it is arranged on the rotating shaft of internal body, the rotor being connected with rotating shaft, it is arranged on the stator outside rotor and is arranged on the fan of rotating shaft opposite side, fan is by blade, transverse plane, location hole seat and wheel hub composition, blade branch ringwise is in transverse plane side, vent it is provided with between blade, transverse plane is connected with hole, location seat through wheel hub, it is provided with screw thread in the seat of hole, location, fan is provided around some radiating fin groups, radiating fin group is around being distributed in inside end cap, end cap is connected with body side, air vent it is provided with at end cap.Present configuration is reasonable, can be removed the heat of internal body timely by the fan and radiating fin group being arranged on rotating shaft one end, has saved again more resource simultaneously, has improve work efficiency, save production cost.

Description

an air-cooled motor

technical field

The invention relates to the field of motors, in particular to an air-cooled motor.

Background technique

When the motor performs energy conversion, a small part of the loss is always converted into heat. The generated heat will not only affect the normal use of the motor but also affect the performance of the motor itself, which will reduce the service life of the motor. Therefore, it must be continuously Only when the heat is dissipated can the normal operation of the motor be guaranteed and damage to surrounding components can be reduced. The existing motor heat dissipation technology is generally internally sealed and externally air-cooled. The main components of the motor, the rotor and stator, are sealed inside the motor, and the outer shell is cooled by a fan. However, due to the complex heat transfer, it is difficult for the traditional external air cooling technology to really dissipate heat inside the motor. At present, the commonly used method of cooling is to add heat dissipation fan blades to the motor. However, flat blades are usually used for heat dissipation fan blades. The air volume generated by the flat blades is very small and the heat dissipation effect is poor. There are two traditional cooling methods for motors: free circulation and cooling on the surface of the casing. First of all, the free circulation method needs to absorb heat through the contact between the medium and the motor to dissipate heat. Usually limited by the structure of the motor, the structure is complex and requires a large space. Secondly, the existing method of cooling the surface of the casing has low heat dissipation efficiency, and usually cannot meet the heat dissipation requirements of the motor.

Therefore, aiming at the above problems, the present invention proposes a new technical solution.

Contents of the invention

The invention proposes an air-cooled motor with stable performance and high efficiency.

The present invention is achieved through the following technical solutions:

An air-cooled motor, comprising a body, a rotating shaft arranged inside the body, a rotor connected to the rotating shaft, a stator arranged outside the rotor and a fan arranged on the other side of the rotating shaft, the fan is composed of blades, end planes, positioning holes Composed of a seat and a hub, the blades are ring-shaped and divided on one side of the end plane, vents are provided between the blades, the end plane is connected to the positioning hole seat through the hub, and threads are provided in the positioning hole seat, A plurality of cooling fin groups are arranged around the fan, and the cooling fin groups are distributed around the inner side of the end cover, the end cover is connected to one side of the body, and the end cover is provided with ventilation holes.

Further, the end plane is flat and circular and is fixedly connected to the hub.

Further, the space between the end plane and the positioning hole seat is divided into several ventilation passages by the hub.

Further, the cooling fins are alternately distributed in the end cover.

Further, the diameters of the cooling fin groups decrease sequentially from outside to inside.

Further, the front and rear ends of the body are provided with air intake holes and air outlet holes, and filter screens are provided at the air intake holes.

The beneficial effects of the present invention are: the structure of the present invention is reasonable, the fan at one end of the rotating shaft and the blades, vents and ventilation passages arranged on the fan can accelerate the flow of air inside the body, and the set of heat dissipation fins can effectively complete the internal heat dissipation of the body. Through the combination of the two, the heat dissipation efficiency is improved and the production cost is reduced.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural schematic diagram of the fan of the present invention.

Among them: 1. Body, 2. Rotating shaft, 3. Rotor, 4. Stator, 5. Fan, 6. Blade, 7. End plane, 8. Positioning hole seat, 9. Hub, 10. Vent, 11. Thread, 12. heat dissipation fin group, 13. end cover, 14. ventilation hole, 15. ventilation channel, 16. air inlet hole, 17. air outlet hole, 18. filter screen.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 2, an air-cooled motor includes a body 1, a rotating shaft 2 arranged inside the body 1, a rotor 3 connected to the rotating shaft 2, a stator 4 arranged outside the rotor 3, and a stator 4 arranged on the other side of the rotating shaft 2. The fan 5 on one side, the fan 5 is made up of the blade 6, the end plane 7, the positioning hole seat 8 and the hub 9, the blade 6 is annularly divided on one side of the end plane 7, and the air vent 10 is arranged between the blades 6, and the end plane 7 The hub 9 is connected with the positioning hole seat 8, the positioning hole seat 8 is provided with a thread 11, and a plurality of cooling fin groups 12 are arranged around the fan 5, and the cooling fin group 12 is surrounded and distributed on the inner side of the end cover 13, and the end cover 13 and the One side of the body 1 is connected, and the end cover 13 is provided with a ventilation hole 14 .

In this embodiment, the end plane 7 has a flat circular shape and is fixedly connected to the hub 9. By setting the end plane 7 in a flat circular shape, its own weight can be effectively reduced, thereby reducing energy consumption during rotation. The connection between the end plane 7 and the hub 9 can effectively complete the required tasks and improve work efficiency.

In this embodiment, the space between the end plane 7 and the positioning hole seat 8 is divided into several ventilation passages 15 by the hub 9, and the hub 9 provided between the end plane 7 and the positioning hole seat 8 can effectively complete the end plane 7 and the positioning. Sufficient space is provided while the hole seats 8 are connected, and the ventilation channel 15 composed of a large amount of space can effectively achieve a cooling effect and improve work efficiency.

In this embodiment, the heat dissipation fin groups 12 are alternately distributed in the end cover 13, and the heat dissipation fin groups 12 arranged in the end cover 13 can be in contact with the heat in the air in a more timely manner and pass through the heat dissipation fins. The sheet group 12 exports it in time, effectively improving the cooling effect.

In this embodiment, the diameters of the cooling fin groups 12 decrease sequentially from the outside to the inside. By setting the cooling fin groups 12 whose diameters gradually decrease from the outside to the inside, the working environment can be better adapted and the cooling effect can be improved.

In this embodiment, the front and rear ends of the body 1 are provided with an air inlet 16 and an air outlet 17, and the air inlet 16 is provided with a filter screen 18. The rapid flow can filter out impurities in the air through the filter screen 18 arranged at the air inlet 16, so as to avoid unnecessary influence on the work of the body 1 .

In specific operation, the fan 5 is tightly connected with the rotating shaft 2 through the screw thread 11 arranged in the positioning hole seat 8, and through the rotation of the fan 5, air is sucked in from the air intake hole 16 on one side of the body 1, and the air is connected with the rotor inside the body 1. 3. The stator 4 and other components are fully contacted and then flow out through the air outlet 17 on the other side of the body 1, and part of the air flowing out of the air outlet 17 passes through the ventilation opening 10 and the ventilation channel 15 in the middle of the blade 6 of the fan 5, and then flows from the side of the end cover 13 Part of the air is discharged from the ventilation holes 14 of the heat dissipation fin group 12, and the heat is exported by the heat dissipation fin group 12 after being in contact with the heat dissipation fin group 12. The air flows through the channel formed by the heat dissipation fin group 12, and finally is discharged through the ventilation hole 14 at the end cover 13. .

The beneficial effects of the present invention are: the present invention has a reasonable structure, and the heat inside the machine body can be dissipated in time through the fan and heat dissipation fin set arranged at one end of the rotating shaft, and at the same time, more resources are saved, the work efficiency is improved, and the Cost of production.

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, are all included in the scope of patent protection of the present invention in the same way.

Claims (6)

1. a gas cooled electrical machine, including body, is arranged on the rotating shaft of internal body, the rotor being connected with rotating shaft, is arranged on and turns Stator outside son and be arranged on the fan of rotating shaft opposite side, it is characterised in that: described fan is by blade, transverse plane, location Hole seat and wheel hub composition, described blade branch ringwise is provided with vent, described transverse plane between transverse plane side, described blade Being connected with hole, location seat through wheel hub, be provided with screw thread in the seat of hole, described location, described fan is provided around some radiating fin groups, Radiating fin group is around being distributed in inside end cap, and described end cap is connected with body side, is provided with air vent at described end cap.

A kind of gas cooled electrical machine, it is characterised in that: described transverse plane be flat toroidal and with wheel Hub is fixing to be connected.

A kind of gas cooled electrical machine, it is characterised in that: the space between described transverse plane and hole, location seat by Wheel hub is separated into some vent passages.

A kind of gas cooled electrical machine, it is characterised in that: described radiating fin composition is alternately distributed in end cap In.

A kind of gas cooled electrical machine, it is characterised in that: the diameter of described radiating fin group depends on from outside to inside Secondary successively decrease.

A kind of gas cooled electrical machine, it is characterised in that: described body front and back end is provided with air inlet and gives vent to anger Hole, described air inlet position is provided with drainage screen.