CN212726742U - Large-scale low pressure asynchronous motor heat abstractor - Google Patents

Abstract

The utility model relates to a motor heat dissipation technical field discloses a large-scale low pressure asynchronous motor heat abstractor, including casing and back shroud, the left side surface at the casing is fixed in the back shroud installation, the outer lane of casing is encircleed and is provided with heat radiation fins, and heat radiation fins is a plurality of, and the even distribution of a plurality of heat radiation fins is in the casing outer lane, the right side outer lane of back shroud is encircleed and is fixed with the cavity crown plate, and the inside of cavity crown plate is the cavity structure, and the inside of cavity crown plate and the inside intercommunication in right side of back shroud, and the through-hole has been seted up on the right side surface of cavity crown plate, through-hole. The utility model discloses a set up the cavity crown plate in the left back shroud outer lane of casing, make its and the inside intercommunication of back shroud, when the radiating fan blade blows along with the rotor rotation, partly wind blows on radiating fin through the through-hole after getting into the cavity crown plate, can blow away the accumulational heat around radiating fin, has improved the radiating effect of motor.

Description

Large-scale low pressure asynchronous motor heat abstractor

Technical Field

The utility model relates to a motor heat dissipation technical field specifically is a large-scale low pressure asynchronous motor heat abstractor.

Background

At present, an asynchronous motor, also called an induction motor, is an alternating current motor which generates electromagnetic torque by interaction of an air gap rotating magnetic field and induction current of a rotor winding, so that electromechanical energy is converted into mechanical energy.

In the prior art, heat dissipation is performed through the heat dissipation fan blades and the heat dissipation fins arranged on the periphery of the heat dissipation fan blades, however, the heat dissipation fins are only exposed in the air, heat accumulation is easily caused, and the heat dissipation effect is yet to be improved. Therefore, we propose a heat sink for large low-voltage asynchronous motors.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large-scale low pressure asynchronous motor heat abstractor sets up the cavity crown plate through at the left back shroud outer lane of casing, makes its and the inside intercommunication of back shroud, when radiating fan blade blows along with the rotor rotation, blows on radiating fin through the through-hole after partly wind gets into the cavity crown plate, can blow away radiating fin piling up heat around, has improved the radiating effect of motor, has solved the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a large-scale low-voltage asynchronous motor heat dissipating double-fuselage, including chassis and rear cover, the said rear cover is installed and fixed on the left surface of the chassis, the outer lane of the said chassis is surrounded and set up the heat-dissipating fin, the heat-dissipating fin is multiple, and multiple heat-dissipating fins distribute in the outer lane of chassis evenly;

the right side outer lane of back shroud is encircleed and is fixed with the cavity crown plate, and the inside of cavity crown plate is the cavity structure, and the inside of cavity crown plate and the inside intercommunication in right side of back shroud, and the through-hole has been seted up on the right side surface of cavity crown plate, through-hole and the inside intercommunication of cavity crown plate, and the through-hole is located heat radiation fins's left side, be fixed with the stator on the inner wall of casing, the inside rotatable rotor that is fixed with of casing of stator inner circle, the left side transmission of rotor is connected with the pivot, and the pivot runs through to inside the back shroud, and installs heat dissipation flabellum in the inside pivot of back shroud, and the right side transmission of rotor is.

As a preferred embodiment of the utility model, the left side middle part of back shroud is fixed with first ventilation net, and the back shroud passes through first ventilation net and outside intercommunication.

As a preferred embodiment of the present invention, the surfaces of the left and right sides of the casing are provided with a second ventilation net, and the second ventilation net communicates with the inside and the outside of the casing.

As a preferred embodiment of the present invention, the driving shaft and the rotating shaft are rotatably connected to the housing through a bearing, and the bearing is embedded in the housing.

As a preferred embodiment of the present invention, the hollow ring plate is fixed to the outer ring of the rear cover by welding.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a large-scale low pressure asynchronous motor heat abstractor sets up the cavity crown plate through at the left back shroud outer lane of casing, makes its and the inside intercommunication of back shroud, when radiating fan blade blows along with the rotor rotation, blows on radiating fin through the through-hole after partly wind gets into the cavity crown plate, can blow away the accumulational heat around radiating fin, has improved the radiating effect of motor.

2. The utility model discloses a large-scale low pressure asynchronous motor heat abstractor is fixed with first ventilation net through the left side middle part that makes the rear cover, and the rear cover through first ventilation net and outside intercommunication, when first ventilation net guarantees that outside air gets into, can avoid inside the dust gets into the rear cover.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of the overall structure of the heat dissipation device for a large-sized low-voltage asynchronous motor according to the present invention;

fig. 2 is a detailed structural schematic diagram of a position a of the heat dissipation device for a large-sized low-voltage asynchronous motor according to the present invention.

In the figure: 1. a housing; 2. a rear cover; 3. a hollow ring plate; 4. heat dissipation fins; 5. a stator; 6. a bearing; 7. a first ventilation net; 8. a heat dissipation fan blade; 9. a second ventilation network; 10. a rotor; 11. a drive shaft; 12. a through hole; 13. a rotating shaft.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the utility model discloses in provide only supply the reference with the model of electrical apparatus. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.

Referring to fig. 1-2, the present invention provides a technical solution: a large-scale low-voltage asynchronous motor heat dissipating double-fuselage, including chassis 1 and after-hood 2, the said after-hood 2 is installed and fixed on the left surface of the chassis 1, the outer lane of the said chassis 1 surrounds and has heat-dissipating fins 4, heat-dissipating fins 4 are multiple, and multiple heat-dissipating fins 4 are distributed in the outer lane of chassis 1 evenly;

the right side outer lane of back shroud 2 is encircleed and is fixed with cavity crown plate 3, and the inside of cavity crown plate 3 is the cavity structure, and the inside of cavity crown plate 3 and the inside intercommunication in right side of back shroud 2, and through-hole 12 has been seted up on the right side surface of cavity crown plate 3, and through-hole 12 and the inside intercommunication of cavity crown plate 3, and through-hole 12 is located heat radiation fins 4's left side, be fixed with stator 5 on the inner wall of casing 1, the inside rotatable rotor 10 that is fixed with of casing 1 of stator 5 inner circle, the left side transmission of rotor 10 is connected with pivot 13, and pivot 13 runs through to inside the back shroud 2, and installs heat dissipation flabellum 8 on the inside pivot 13 of back shroud 2, and the right side transmission of rotor 10 is connected with drive shaft 11, and drive shaft.

In this embodiment (please refer to fig. 1 and 2), the hollow ring plate 3 is disposed on the outer ring of the rear cover on the left side of the casing 1 to communicate with the inside of the rear cover 2, and when the heat dissipation fan blades 8 rotate with the rotor 10 to blow air, a part of the air enters the hollow ring plate 3 and then blows on the heat dissipation fins 4 through the through holes 12, so as to blow away heat accumulated around the heat dissipation fins 4, thereby improving the heat dissipation effect of the motor.

Wherein, the left side middle part of back shroud 2 is fixed with first ventilation net 7, and back shroud 2 communicates with the outside through first ventilation net 7.

In this embodiment (see fig. 1), the first ventilation net 7 is fixed to the middle portion of the left side of the rear cover 2, and the rear cover 2 is communicated with the outside through the first ventilation net 7, so that dust can be prevented from entering the rear cover 2 while the first ventilation net 7 ensures that outside air enters.

Wherein, the surface on casing 1 left side and right side all is provided with second ventilation net 9, and second ventilation net 9 intercommunication casing 1's inside and outside.

In this embodiment (see fig. 1), air enters the interior of the housing 1 through the second ventilation network 9 for heat dissipation.

Wherein, the driving shaft 11 and the rotating shaft 13 are rotatably connected with the casing 1 through a bearing 6, and the bearing 6 is embedded in the casing 1.

Wherein, the hollow ring plate 3 is fixed on the outer ring of the rear cover 2 by welding.

It should be noted that the present invention relates to a heat dissipation device for large-scale low-voltage asynchronous motor, which comprises a casing 1, a rear cover 2, a hollow ring plate 3, heat dissipation fins 4, a stator 5, a bearing 6, a first ventilation net 7, heat dissipation fan blades 8, a second ventilation net 9, a rotor 10, a driving shaft 11, through holes 12, and a rotating shaft 13, wherein the components are all universal standard components or components known by those skilled in the art, the structure and principle of the components are known by those skilled in the art through technical manuals or through conventional experimental methods, when working, the rotor 10 rotates, the heat dissipation fan blades 8 inside the rear cover 2 are synchronously driven to rotate, so that the external air enters the rear cover 2 from the first ventilation net 7, one part of the air enters the casing 1 through the second ventilation net 9 to dissipate heat of the motor, part of the heat of the motor is attached to the heat dissipation fins 4, and the other part of the air enters the hollow ring plate 3, the heat is discharged from the through holes 12 and blown onto the heat dissipation fins 4, so that the heat accumulated on the heat dissipation fins 4 is blown away, the overall heat dissipation effect of the motor is improved, the power output of the motor is output from the driving shaft 11, and the overall working principle of the motor is the prior art and is not explained any more.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides a large-scale low pressure asynchronous motor heat abstractor, includes casing (1) and back shroud (2), its characterized in that: the rear cover (2) is fixedly arranged on the left side surface of the machine shell (1), the outer ring of the machine shell (1) is provided with a plurality of radiating fins (4) in a surrounding manner, and the plurality of radiating fins (4) are uniformly distributed on the outer ring of the machine shell (1);

a hollow annular plate (3) is fixed on the right outer ring of the rear cover (2) in a surrounding way, the hollow annular plate (3) has a hollow cavity structure, the interior of the hollow annular plate (3) is communicated with the interior of the right side of the rear cover (2), the right side surface of the hollow annular plate (3) is provided with a through hole (12), the through hole (12) is communicated with the interior of the hollow annular plate (3), the through holes (12) are positioned at the left side of the radiating fins (4), the stator (5) is fixed on the inner wall of the casing (1), the rotor (10) is rotatably fixed in the casing (1) at the inner ring of the stator (5), the left side of the rotor (10) is in transmission connection with a rotating shaft (13), the rotating shaft (13) penetrates into the rear cover (2), and a rotating shaft (13) in the rear cover (2) is provided with a radiating fan blade (8), the right side of the rotor (10) is connected with a driving shaft (11) in a transmission manner, and the driving shaft (11) penetrates through the right side of the machine shell (1).

2. The heat sink for large low-voltage asynchronous motor according to claim 1, wherein: the left side middle part of back shroud (2) is fixed with first ventilation net (7), and back shroud (2) are through first ventilation net (7) and outside intercommunication.

3. The heat sink for large low-voltage asynchronous motor according to claim 1, wherein: the surface on the left side and the right side of the machine shell (1) is provided with a second ventilation net (9), and the second ventilation net (9) is communicated with the inside and the outside of the machine shell (1).

4. The heat sink for large low-voltage asynchronous motor according to claim 1, wherein: the driving shaft (11) and the rotating shaft (13) are rotatably connected with the machine shell (1) through a bearing (6), and the bearing (6) is embedded in the machine shell (1).

5. The heat sink for large low-voltage asynchronous motor according to claim 1, wherein: the hollow annular plate (3) is fixed on the outer ring of the rear cover (2) in a welding mode.

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