CN210927264U - Box low air noise motor structure - Google Patents

Abstract

The utility model discloses a box-type low-air-noise motor structure, which comprises an air outlet and an air inlet which are arranged on a frame, wherein arc noise reduction covers are respectively arranged at the air outlet and the air inlet, and the two arc noise reduction covers are oppositely arranged; the arc noise reduction cover comprises an arc flow guide channel which is formed by enclosing an outer arc plate, an inner arc plate and two sealing plates, a port of the arc flow guide channel is downwards connected with a connector, the connector is in butt joint with a corresponding air outlet or an air inlet, the other port of the arc flow guide channel is horizontal and sealed through a baffle, and a ventilation net window is arranged on one side, away from the connector, of the outer arc plate. The utility model discloses advance on motor upper portion, the air outlet position respectively adds an arc and falls the cover of making an uproar, advances the motor, the wind path extension of air outlet to form the streamline, reduce and import and export the wind pressure, the air noise that can effectively reduce the motor and produce when moving.

Description

Box low air noise motor structure

Technical Field

The utility model belongs to the technical field of the motor, especially, relate to a box low air noise motor structure.

Background

At the present stage, the running condition of the motor is higher and higher, the low vibration and the low noise become the basic requirements of the motor, and the small motor generally adopts a cylinder structure, uses a rolling bearing, has large vibration and temperature rise, and has a complex structural process. Box motors are significantly superior to barrel motors in terms of cost and process complexity. And the box-type motor is easier in the later optimization process. However, the traditional box-type structure without a cooler is easy to have the problems of air inlet and outlet and high air noise.

The utility model discloses a notice No. CN 203608028U's utility model discloses an outer wind path structure of box motor of low noise, including the motor frame with establish the empty air cooler at motor frame top, the main shaft both ends of motor rotate through the bearing respectively and connect on the motor frame, main shaft one end is equipped with outer fan, outer fan is equipped with the fan end cover outward, fan end cover upper portion is through business turn over wind kuppe and empty air cooler's air intake connection, and the air outlet of empty air cooler is equipped with the air-out noise reduction cover that is located the main shaft and stretches out the end top, and the air intake of fan end cover is established lateral part under, and fan end cover lateral part is equipped with the air inlet cover, and the air intake of air inlet cover is established at last. The utility model has the characteristics of compact structure, the noise reduction effect is good, and the cooling effect is good to can stretch out the end bearing for the main shaft and provide the cooling air, thereby reduce the bearing temperature.

Notice No. CN 209313607U's utility model discloses a silencing device for high-pressure box motor, including the cover body. Two transverse partition plates are longitudinally arranged in the inner cavity of the cover body, the inner cavity between the two transverse partition plates forms a middle cavity, and the inner cavities between the two transverse partition plates and the corresponding end plates of the cover body form end cavities. And air outlets are formed in the tops of two side walls of the cover body corresponding to the middle cavity. The method is characterized in that: the middle cavity is transversely provided with a first longitudinal partition plate in the middle, second longitudinal partition plates are arranged between the first longitudinal partition plate and the side walls of the middle cavity, a first distance is formed between the first longitudinal partition plate and the second longitudinal partition plate, and a second distance is formed between the two second longitudinal partition plates and the corresponding side walls. V-shaped plates are arranged between the lower edges of the two side walls of the middle cavity and the adjacent first space, the longitudinal outer edges of the V-shaped plates are connected with the lower edges of the corresponding side walls, and first air deflectors are arranged on the longitudinal inner edges of the V-shaped plates. The inner side surface of the cover body, the two surfaces of the first longitudinal partition plate, the inner surface of the V-shaped plate and the two side surfaces of the first air deflector are all compounded with silencing cotton. The utility model discloses have sound attenuation function and cooling function

However, the above-mentioned technical solution disclosed realizes the noise reduction effect on the basis of the air-air cooler, and still cannot solve the problem of large air noise at the air inlet and the air outlet aiming at the traditional box-type structure without the cooler.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a box low air noise motor structure can effectively reduce the air noise that produces when the motor operation.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a box-type low-air-noise motor structure comprises an air outlet and an air inlet which are arranged on a base, wherein arc-shaped noise reduction covers are respectively arranged at the air outlet and the air inlet, and the two arc-shaped noise reduction covers are oppositely arranged;

the arc noise reduction cover comprises an arc flow guide channel which is formed by enclosing an outer arc plate, an inner arc plate and two sealing plates, a port of the arc flow guide channel is downwards connected with a connector, the connector is in butt joint with a corresponding air outlet or an air inlet, the other port of the arc flow guide channel is horizontal and sealed through a baffle, and a ventilation net window is arranged on one side, away from the connector, of the outer arc plate.

The outer arc plate is composed of an arc part and a horizontal part which are connected smoothly, the arc part is connected with the machine base, and the ventilation net window is arranged at the horizontal part.

The inner arc plate is arranged corresponding to the horizontal part of the outer arc plate in the up-down direction.

The baffle extends downwards and is connected with the base.

The outer arc plate, the baffle and the connection part of the two sealing plates and the engine base on the arc noise reduction cover are all provided with flanging parts, mounting holes are formed in the flanging parts, and the arc noise reduction cover is connected with the engine base through bolts penetrating through the mounting holes.

And a damping pad is arranged between the flanging part and the machine base.

The utility model has the advantages that:

the utility model discloses advance on motor upper portion, the air outlet position respectively adds an arc and falls the cover of making an uproar, advances the motor, the wind path extension of air outlet to form the streamline, reduce and import and export the wind pressure, the air noise that can effectively reduce the motor and produce when moving.

The utility model discloses can effectual reduction import and export wind pressure sudden change, the wind path is disorderly, the air noise of production. Meanwhile, the inner side of the noise reduction device adopts an arc plate structure, so that the air quantity is more uniform, the air path is clear, the air quantity vortex can be effectively reduced, and the cooling efficiency of the motor is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is an enlarged view of the curved noise reduction shroud of the present invention;

fig. 4 is a top view of fig. 3.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, in which arrows in fig. 1 indicate the flow direction of air.

As shown in fig. 1 to 4, the utility model discloses a box low-air noise motor structure, including frame 7, stator 3 installs in frame 7, and preceding, rear end cap 2 are fixed on frame 7 end plate, set up bearing 1 in the end cap 2 in order to support rotor 5, install fan 6 on the rotor. The base 7 is provided with an air outlet and an air inlet, the air outlet and the air inlet are respectively provided with an arc-shaped noise reduction cover 4, and the two arc-shaped noise reduction covers 4 are oppositely arranged.

The arc noise reduction cover 4 comprises an arc flow guide channel which is formed by enclosing an outer arc plate 43, an inner arc plate 46 and two sealing plates 41 and 42, wherein one port of the arc flow guide channel is downward to form a connecting port 8, the connecting port 8 is butted with a corresponding air outlet or air inlet, the other port of the arc flow guide channel is horizontal and is sealed by a baffle 45, and the baffle 45 extends downward and is connected with the engine base 7.

And a ventilation net window 44 is arranged on one side of the outer arc plate 46 far away from the connecting port 8.

In this embodiment, the outer arc plate 43 is formed by smoothly connecting an arc portion and a horizontal portion, the arc portion is connected to the base 7, the ventilation screen 44 is disposed at the horizontal portion, and the inner arc plate 46 is disposed corresponding to the horizontal portion of the outer arc plate 43 in the vertical direction.

In this embodiment, the outer arc plate 43, the baffle 45 and the two sealing plates 41 and 42 on the arc noise reduction cover 4 are all provided with the flanging part 47 at the connection part with the base 7, the mounting hole is arranged on the flanging part 47, and the arc noise reduction cover 4 is connected with the base 7 through the bolt penetrated by the mounting hole, which is convenient to detach.

In this embodiment, a vibration damping pad is further disposed between the flanging portion 47 and the base 7, so that the vibration of the motor can be effectively reduced.

The utility model discloses advance on motor upper portion, the air outlet position respectively adds an arc and falls the cover of making an uproar, advances the motor, the wind path extension of air outlet to form the streamline, reduce and import and export the wind pressure, the air noise that can effectively reduce the motor and produce when moving.

The utility model discloses can effectual reduction import and export wind pressure sudden change, the wind path is disorderly, the air noise of production. Meanwhile, the arc-shaped noise reduction cover is of an arc-shaped plate structure, so that the air quantity is more uniform, the air path is clear, the air quantity vortex can be effectively reduced, and the cooling efficiency of the motor is improved.

The utility model discloses compare cylinder structure before, just can avoid motor vibration big effectively, the temperature rises, problem with high costs.

The utility model discloses compare box structure before, can effectual reduction air noise, improve the reliability of motor operation, realize the low vibration low noise operation of motor.

The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", 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, but 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 thus, should not be construed as limiting the scope of the present invention.

Claims (6)

1. The utility model provides a box low air noise motor structure, includes air outlet and the air intake that sets up on the frame, its characterized in that: arc noise reduction covers are respectively arranged at the air outlet and the air inlet, and the two arc noise reduction covers are oppositely arranged;

the arc noise reduction cover comprises an arc flow guide channel which is formed by enclosing an outer arc plate, an inner arc plate and two sealing plates, a port of the arc flow guide channel is downwards connected with a connector, the connector is in butt joint with a corresponding air outlet or an air inlet, the other port of the arc flow guide channel is horizontal and sealed through a baffle, and a ventilation net window is arranged on one side, away from the connector, of the outer arc plate.

2. The box-type low air noise motor structure of claim 1, wherein: the outer arc plate is composed of an arc part and a horizontal part which are connected smoothly, the arc part is connected with the machine base, and the ventilation net window is arranged at the horizontal part.

3. The box-type low air noise motor structure of claim 2, wherein: the inner arc plate is arranged corresponding to the horizontal part of the outer arc plate in the up-down direction.

4. The box-type low air noise motor structure of claim 1, wherein: the baffle extends downwards and is connected with the base.

5. The box-type low air noise motor structure of claim 1, wherein: the outer arc plate, the baffle and the connection part of the two sealing plates and the engine base on the arc noise reduction cover are all provided with flanging parts, mounting holes are formed in the flanging parts, and the arc noise reduction cover is connected with the engine base through bolts penetrating through the mounting holes.

6. The box-type low air noise motor structure according to claim 5, wherein: and a damping pad is arranged between the flanging part and the machine base.

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