CN212343526U

CN212343526U - High-power three-phase motor capable of quickly radiating heat

Info

Publication number: CN212343526U
Application number: CN202021266244.1U
Authority: CN
Inventors: 王华建; 陆浩; 于涛; 俞家信
Original assignee: Zhejiang Juneng Electric Co ltd
Current assignee: Zhejiang Juneng Electric Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-01-12
Anticipated expiration: 2030-07-01

Abstract

The utility model discloses a high-power three-phase motor capable of fast heat dissipation, which comprises a shell, wherein a front end cover and a rear end cover are respectively arranged at two ends of the shell, a front end bearing is arranged in the front end cover, a rear end bearing is arranged in the rear end cover, a main shaft with one end extending out of the front end cover is rotatably connected on the front end bearing and the rear end bearing, a rotor core is arranged on the main shaft, a stator core matched with the rotor core is arranged on the inner wall of the shell, an air inlet is arranged at the side surface of the front end cover, an air outlet is arranged in the rear end cover, and a backward tilting centrifugal fan connected with the shell is covered on the air; the backward-inclined centrifugal fan comprises a tailstock, a side wall connected with the shell is arranged on the tailstock, a heat exhaust air outlet is formed in the side wall, a motor is fixed on the tailstock, and a centrifugal wind wheel is arranged on a shell of the motor. The three-phase motor has the characteristics of good heat dissipation effect, long service life, safety and reliability, perfect overall function and strong practicability.

Description

High-power three-phase motor capable of quickly radiating heat

Technical Field

The utility model relates to a motor manufacturing technology field, more specifically say, it relates to a quick radiating high-power three-phase motor.

Background

The three-phase motor is an alternating current motor driven by three-phase alternating current, and includes a three-phase synchronous motor and a three-phase asynchronous motor. This type of ac motor is referred to as a three-phase stator winding of the motor (each separated by 120 degrees in electrical degrees). Wherein, the three-phase motor also comprises a direct current motor.

At present, along with the increase of manufacturing power, the three-phase motor can generate a large amount of heat energy in a machine body in the use process, and when the motor is in a high-temperature and high-heat state for a long time, use faults or damage can be easily caused, the service life of the whole motor is greatly reduced, and the whole effect is poor. Therefore, the utility model provides a quick radiating high-power three-phase motor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the above-mentioned prior art, provide a quick radiating high-power three phase motor, this three phase motor has that the radiating effect is good, long service life, safe and reliable's characteristics.

In order to solve the technical problem, the purpose of the utility model is to realize like this: the utility model relates to a high-power three-phase motor of quick radiating, including the casing, the both ends of casing are equipped with front end housing and rear end cap respectively, be equipped with the front end bearing in the front end housing, be equipped with the rear end bearing in the rear end cap, rotate on front end bearing and the rear end bearing and be connected with the main shaft that one end stretches out the front end housing, be equipped with rotor core on the main shaft, the inner wall of casing is equipped with the stator core who matches rotor core, open the side of front end housing has the air intake, open the inside of rear end cap has the air outlet, be covered with on the air outlet with the hypsokinesis formula centrifugal fan that the casing is connected.

The utility model discloses further set up to: the backward-inclined centrifugal fan comprises a tailstock, a side wall connected with the shell is arranged on the tailstock, a heat exhaust air outlet is formed in the side wall, a motor is fixed on the tailstock, and a centrifugal wind wheel is arranged on a shell of the motor.

The utility model discloses further set up to: the centrifugal wind wheel comprises a front retaining ring and a rear retaining ring, a plurality of guide vanes distributed in an annular array are arranged between the front retaining ring and the rear retaining ring, and the front retaining ring is provided with a first closing end extending forwards.

The utility model discloses further set up to: the guide vane is arc surface shaped.

The utility model discloses further set up to: the air outlet is provided with a flow guide ring, the flow guide ring is provided with a second closed end extending backwards, and the second closed end is matched with the first closed end.

The utility model discloses further set up to: the heat exhaust air outlet is covered with a first grid.

The utility model discloses further set up to: and the air inlet is covered with a second grid.

The utility model discloses further set up to: and the air inlet is covered with a filtering device.

The utility model discloses further set up to: and a lifting ring is arranged at the top of the shell.

To sum up, the utility model discloses following beneficial effect has: the utility model relates to a quick radiating high-power three-phase motor covers through setting up the air intake at the front end, covers at the rear end and sets up the air outlet to establish back-tipping type centrifugal fan on the air outlet by the cover, form the inside negative pressure of casing, take out the heat, and discharge along the heat extraction air outlet, slow down the rise of the whole temperature of motor, reach good heat dissipation, thereby prolong the holistic life of motor, whole function is perfect, and the practicality is strong.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic side view of the present invention;

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

fig. 4 is a schematic structural view of the retroverted centrifugal fan according to the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is provided in conjunction with the specific examples, but it should be understood that these descriptions are only for the purpose of further illustrating the features and advantages of the present invention, and are not intended to limit the patent requirements of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The invention will be further described with reference to the accompanying drawings and preferred embodiments.

Example 1

Referring to fig. 1 and 2, the high-power three-phase motor with rapid heat dissipation according to the present embodiment includes a casing 1, a front end cover 2 and a rear end cover 3 are respectively disposed at two ends of the casing 1, a front end bearing 4 is disposed in the front end cover 2, a rear end bearing 5 is disposed in the rear end cover 3, a main shaft 6 having one end extending out of the front end cover 2 is rotatably connected to the front end bearing 4 and the rear end bearing 5, a rotor core 7 is disposed on the main shaft 6, a stator core 8 matching the rotor core 7 is disposed on an inner wall of the casing 1, an air inlet 9 is disposed on a side surface of the front end cover 2, an air outlet 10 is disposed inside the rear end cover 3, and a backward-tilting centrifugal fan 11 connected to the casing 1 is covered on the air outlet 10.

In this embodiment, the air inlet 9 is formed in the front end cover 2, the air outlet 10 is formed in the rear end cover 3, and the backward inclined centrifugal fan 11 covering the air outlet 10 is operated to form negative pressure inside the casing 1, so that heat is drawn from the inside of the casing 1 to the inside of the backward inclined centrifugal fan 11 and discharged from the backward inclined centrifugal fan 11. The conventional wind wheel is arranged on the main shaft 6 extending out of the rear end cover 3, when the main shaft 6 stops rotating, heat dissipation of the machine body cannot be achieved, and airflow does not pass through the interior of the machine body and is limited in heat dissipation. And the interior does not have the convection current, and the blowing of table body does not reach better radiating effect, uses the limitation.

Among them, the backward-inclined centrifugal fan 11 can generate a strong negative pressure to assist the carrying away of the gas.

Further, a hanging ring 12 is arranged on the top of the shell 1. Through the setting of rings 12, make things convenient for the holistic lifting by crane of motor, be convenient for transport.

Example 2

Referring to fig. 1 to 4, in the high-power three-phase motor with rapid heat dissipation according to the present embodiment, on the basis of embodiment 1, the backward-tilting centrifugal fan 11 further includes a tailstock 111, a side wall 112 connected to the housing 1 is disposed on the tailstock 111, a heat-dissipating air outlet 113 is formed on the side wall 112, a motor 114 is fixed on the tailstock 111, and a centrifugal wind wheel 115 is disposed on an output shaft of the motor 114.

Further, the centrifugal wind wheel 115 comprises a front baffle ring 1151 and a rear baffle ring 1152, a plurality of guide vanes 1153 distributed in an annular array are arranged between the front baffle ring 1151 and the rear baffle ring 1152, and the front baffle ring 1151 is provided with a first closed end 1154 extending forwards.

Through the retroversion centrifugal fan 11 that this tailstock 111, side wall 112, heat extraction air outlet 113, motor 114 and centrifugal wind wheel 115 combine to form to centrifugal wind wheel 115 adopts preceding fender ring 1151, back fender ring 1152 and the guide vane 1153 structure of side direction arrangement, realizes terminal surface convulsions, side air supply, produces the air current with certain pressure to casing 1 inside, makes it take out hot-air, reaches good heat dissipation.

Preferably, the guide vanes 1153 have a curved surface shape.

Further, a deflector ring 116 is disposed on the air outlet 10, the deflector ring 116 has a second closed end 1161 extending backward, and the second closed end 1161 is matched with the first closed end 1154. Good flow directing effect during air circulation is initiated by the second necked-in end 1161 on the deflector ring 116 engaging the first necked-in end 1154 on the front baffle ring 1151.

Example 3

Referring to fig. 1 to 4, the present embodiment relates to a high-power three-phase motor with rapid heat dissipation, which is based on

embodiments

1 and 2, and is further configured such that the heat-exhausting air outlet 113 is covered with a first grid 13. Furthermore, the air inlet 9 is covered with a second grid 14.

Through the setting of first bars net 13 and second bars net 14, prevent effectively that external foreign matter from getting into inside casing 1 through heat extraction air outlet 113 and air intake 9, played the effect of preventing dust and preventing the foreign matter, be used as sheltering from.

Wherein, the air inlet 9 can also be covered with a filtering device.

The utility model relates to a quick radiating high-power three-phase motor covers through setting up the air intake at the front end, covers at the rear end and sets up the air outlet to establish back-tipping type centrifugal fan on the air outlet by the cover, form the inside negative pressure of casing, take out the heat, and discharge along the heat extraction air outlet, slow down the rise of the whole temperature of motor, reach good heat dissipation, thereby prolong the holistic life of motor, whole function is perfect, and the practicality is strong.

Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate an orientation or positional relationship based on the actual orientation or positional relationship shown, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, it is possible for those skilled in the art to combine the embodiments and understand the specific meanings of the above terms according to specific situations.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a quick radiating high-power three-phase motor, includes the casing, and the both ends of casing are equipped with front end housing and rear end cap respectively, be equipped with front end bearing in the front end housing, be equipped with rear end bearing in the rear end cap, it has the main shaft that one end stretches out the front end housing to rotate to be connected with on front end bearing and the rear end bearing, is equipped with rotor core on the main shaft, the inner wall of casing is equipped with the stator core who matches rotor core, its characterized in that: the side of the front end cover is provided with an air inlet, the inside of the rear end cover is provided with an air outlet, and the air outlet is covered with a backward tilting centrifugal fan connected with the shell.

2. The fast dissipating high power three phase motor of claim 1 wherein: the backward-inclined centrifugal fan comprises a tailstock, a side wall connected with the shell is arranged on the tailstock, a heat exhaust air outlet is formed in the side wall, a motor is fixed on the tailstock, and a centrifugal wind wheel is arranged on a shell of the motor.

3. The fast dissipating high power three phase motor of claim 2 wherein: the centrifugal wind wheel comprises a front retaining ring and a rear retaining ring, a plurality of guide vanes distributed in an annular array are arranged between the front retaining ring and the rear retaining ring, and the front retaining ring is provided with a first closing end extending forwards.

4. The fast dissipating high power three phase motor of claim 3 wherein: the guide vane is arc surface shaped.

5. The rapid heat dissipation high power three-phase motor according to claim 3 or 4, wherein: the air outlet is provided with a flow guide ring, the flow guide ring is provided with a second closed end extending backwards, and the second closed end is matched with the first closed end.

6. The fast dissipating high power three phase motor of claim 5 wherein: the heat exhaust air outlet is covered with a first grid.

7. The fast dissipating high power three phase motor of claim 1 wherein: and the air inlet is covered with a second grid.

8. The fast dissipating high power three phase motor of claim 1 wherein: and the air inlet is covered with a filtering device.

9. The fast dissipating high power three phase motor of claim 1 wherein: and a lifting ring is arranged at the top of the shell.