Novel environment-friendly efficient motor cleaning soundproof cover

Abstract

The utility model provides a novel environment-friendly efficient sound-proof cover for cleaning a motor, and relates to the technical field of motor sound-proof cleaning equipment. A sound-proof cover air inlet is formed in the side face of the bottom end of a sound-proof cover shell; the silent fan is arranged at the top of the sound insulation cover shell, and the frame type filter is connected with an air inlet of the silent fan; the brush carrier air duct is assembled on the brush carrier, the upper portion of the air duct is connected with an air inlet of the mute fan, the lower portion of the air duct is connected with the upper portion of the brush carrier air duct to form a specific air duct, and the mute fan works to generate air pressure, so that negative pressure is formed in the sound insulation cover. External air forms a forced circulation air path through an air inlet of the soundproof cover to drive carbon powder and air suspended matters generated by operation of the unit to enter a specific air duct through the periphery of the brush carrier, and then enter an air inlet of the silent fan to be collected by the frame type filter. The utility model aims to solve the problems that the running noise of a unit is overlarge, the heat dissipation efficiency is low, and carbon powder generated by an electric brush in the running of the unit cannot be discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of motor sound insulation and cleaning equipment, and particularly relates to a novel environmental protection and high-efficiency sound insulation cover for cleaning motors. Background Art

[0002] With the industrial development of modern society, noise pollution increasingly accounts for a large proportion of environmental pollution, and the harm of noise pollution to the human body is becoming greater and greater, such as problems like hearing impairment, increased incidence of hypertension, easy fatigue, and nerve disorders. Sound insulation covers are common sound insulation devices in industry. At present, the existing sound insulation covers have an unclear sound insulation effect and only simply combine some sound insulation and sound absorption materials. Although they can achieve the effect of noise reduction, the noise reduction efficiency is low, and the heat generated by the working equipment placed in the sound insulation cover cannot be dissipated.

[0003] The existing brush holders at the excitation end of medium and small motors generally adopt an open structure (without a sound insulation cover). The heat generated during the operation of the brush holders at the excitation end is carried away by the natural convection of the air in the operating environment. The heat transfer efficiency is relatively low, and the noise during operation is relatively high. The carbon powder generated by the carbon brushes during operation directly scatters around the unit and cannot be discharged, easily leading to electrical accidents. Or a sound insulation cover is adopted, which only simply combines some sound insulation and sound absorption materials. Although it can achieve the effect of noise reduction, the noise reduction efficiency is low, and the heat generated by the working equipment placed in the sound insulation cover cannot be dissipated.

[0004] For example, in a Chinese patent document, the invention patent with the application publication number CN110517722A and the application publication date of November 29, 2019, named a novel environmental protection sound insulation cover, simply combines some sound insulation and sound absorption materials and can achieve the effect of noise reduction, but with low efficiency. Summary of the Utility Model

[0005] To solve the deficiencies of the above-mentioned prior art, the utility model provides a novel environmental protection and high-efficiency sound insulation cover for cleaning motors, aiming to solve the problems of excessive noise during unit operation, low heat dissipation efficiency, and the inability to discharge the carbon powder generated by the carbon brushes during unit operation.

[0006] The utility model is realized through the following technical solutions:

[0007] A novel environmentally friendly, efficient and clean soundproof cover for a motor, characterized in that it includes a soundproof cover housing, a silent fan, an air duct, a brush holder air duct, and a frame-type filter. A soundproof cover air inlet is provided on the side of the bottom end of the soundproof cover housing; the silent fan is arranged on the top of the soundproof cover housing, and the frame-type filter is connected to the air inlet of the silent fan; the brush holder air duct is assembled on the brush holder, the upper part of the air duct is connected to the air inlet of the silent fan, and the lower part of the air duct is connected to the upper part of the brush holder air duct to form a specific air duct. When the silent fan operates to generate air pressure, a negative pressure is formed inside the soundproof cover. External air forms a forced circulation air path through the soundproof cover air inlet, driving the carbon powder and air suspension generated by the operation of the unit to enter the specific air duct after passing around the brush holder, and then entering the air inlet of the silent fan to be collected by the frame-type filter.

[0008] Further, a filter and a silencer are sequentially assembled in the soundproof cover air inlet. By setting a filter and a silencer in the soundproof cover air inlet, impurities in the air are initially filtered, and at the same time, the noise generated when air flows through is reduced by the silencer.

[0009] Further, soundproof cover air inlets are provided on both sides of the side of the bottom end of the soundproof cover housing.

[0010] Further, the frame-type filter adopts a detachable filter element frame-type filter. By setting a detachable filter element frame-type filter, when the filter element in the filter collects carbon powder and air suspension to a certain extent and can no longer be used, the filter element can be replaced at any time for further operation.

[0011] Further, the upper part of the air duct is connected to the air inlet of the silent fan by bolt fastening, and the lower part of the air duct is connected to the upper part of the brush holder air duct by bolt fastening. By such bolt fastening, a specific air duct is formed. When the silent fan operates to generate air pressure, a negative pressure is formed inside the soundproof cover. External air forms a forced circulation air path through the soundproof cover air inlet, driving the carbon powder and air suspension generated by the operation of the unit to enter the specific air duct after passing around the brush holder, and then entering the air inlet of the silent fan to be collected by the frame-type filter.

[0012] Further, small holes are provided on the brush holder air duct, and the aperture of the small holes is larger than the diameter of the carbon powder and air suspension. When the silent fan operates to draw air, a negative pressure is formed inside the soundproof cover. External air enters the soundproof cover through the soundproof cover air inlet to form a forced circulation air path, driving the carbon powder and air suspension generated by the operation of the unit to pass around the brush holder and enter the brush holder air duct through the small holes on the brush holder air duct, thus entering the air duct and then entering the air inlet of the silent fan to be collected by the frame-type filter.

[0013] Further, a maintenance door is provided on the soundproof cover housing. By setting a maintenance door, when a fault occurs at the brush holder end of the excitation motor or maintenance is required, the equipment inside the soundproof cover can be accessed through the maintenance door for maintenance.

[0014] Furthermore, the shell of the soundproof cover is a frame box-type shell formed by welding a plurality of soundproof panels. The soundproof cover is configured as a frame box-type shell, and its internal space is large and spacious, and maintenance is more convenient.

[0015] Furthermore, the sound insulation board includes an outer metal plate and an inner metal plate, and the outer metal plate and the inner metal plate are fixedly connected. The fixed connection of the two layers of metal plates makes the sound insulation cover more solid and stable.

[0016] Furthermore, a honeycomb aluminum plate is arranged on the inner metal plate, and the honeycombs of the honeycomb aluminum plate are filled with sound-absorbing asbestos. By arranging the honeycomb aluminum plate on the inner metal plate and filling the honeycombs of the honeycomb aluminum plate with sound-absorbing asbestos, the noise of the unit during operation can be further reduced.

[0017] The working principle of the utility model is as follows:

[0018] The silent fan is running to extract air from the soundproof enclosure, forming a negative pressure inside the enclosure. External air enters the enclosure through the air inlet, and then passes through the brush holder to enter the specific air duct, thus forming a forced circulation air path. At the same time, through the forced circulation air path, the carbon powder and suspended matter in the air generated during the operation of the unit enter the brush holder air duct through the small holes on the brush holder air duct, enter the air duct under the wind pressure of the silent fan, and finally enter the frame filter.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. In the utility model, the upper part of the air duct is connected to the air inlet of the silent fan by bolts, and the lower part of the air duct is connected to the upper part of the brush rack air duct by bolts. Such bolt connection forms a specific air duct. The silent fan generates wind pressure when it works, so that negative pressure is formed in the soundproof cover. External air forms a forced circulation air path through the air inlet of the soundproof cover to drive the carbon powder and air suspension generated by the operation of the unit through the brush rack and enter the specific air duct, and then enter the air inlet of the silent fan to be collected by the frame filter, which can effectively collect the carbon powder, air suspension, etc. generated by the operation of the soundproof cover unit, making the operating environment cleaner.

[0021] 2. In the utility model, a silent fan is arranged on the top of the soundproof cover shell to effectively reduce the noise of the operating environment. At the same time, the silent fan can take away the heat generated by the unit when exhausting air, and the heat transfer efficiency is high.

[0022] 3. In the present invention, a filter and a silencer are arranged at the air inlet of the soundproof cover to preliminarily filter impurities in the air, and at the same time, the silencer is used to reduce the noise generated when the air flows through.

[0023] 4. In this utility model, the sound insulation cover is formed by welding multiple sound insulation boards. The sound insulation board includes an outer metal plate and an inner metal plate fixedly connected. The double-layer metal plate makes the sound insulation cover firm and stable. At the same time, a honeycomb aluminum plate is arranged on the inner metal plate, and sound-absorbing asbestos is filled in the honeycomb, which can further reduce the noise during the operation of the unit.

[0024] In summary, this utility model can effectively reduce the noise in the operating environment, has a high heat transfer efficiency, and effectively solves problems such as carbon powder and airborne suspended substances generated during the operation of the unit, making the operating environment cleaner and more environmentally friendly. Description of the Drawings

[0025] Figure 1 It is a side view of this utility model;

[0026] Figure 2 It is a rear view of this utility model.

[0027] Reference numerals: 1 - sound insulation cover housing, 2 - silent fan, 3 - frame filter, 4 - sound insulation cover air inlet, 5 - air duct, 6 - brush holder air duct, 7 - brush holder, 8 - inspection door. Detailed Embodiments

[0028] Next, the technical solutions in the embodiments of this utility model will be clearly and completely described in conjunction with the drawings of this utility model specification. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all the embodiments. Based on the embodiments in this utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this utility model.

[0029] Embodiment 1

[0030] Referring to the attached Figure 1-2 As shown, a sound insulation cover for a new type of environmentally friendly, efficient and clean motor includes a sound insulation cover housing 1, a silent fan 2, an air duct 5, a brush holder air duct 6, and a frame filter 3. A sound insulation cover air inlet 4 is arranged on the side surface at the bottom end of the sound insulation cover housing 1; the silent fan 2 is arranged on the top of the sound insulation cover housing 1, and the frame filter 3 is connected to the air inlet of the silent fan 2; the brush holder air duct 6 is assembled on the brush holder 7, the upper part of the air duct 5 is connected to the air inlet of the silent fan 2, and the lower part of the air duct 5 is connected to the upper part of the brush holder air duct 6 to form a specific air duct 5. When the silent fan 2 operates to generate air pressure, a negative pressure is formed inside the sound insulation cover. External air forms a forced circulation air path through the sound insulation cover air inlet 4, driving the carbon powder and airborne suspended substances generated during the operation of the unit to enter the specific air duct 5 after passing around the brush holder 7, and then entering the air inlet of the silent fan 2 to be collected by the frame filter 3.

[0031] Embodiment 2

[0032] This embodiment further elaborates and supplements the implementation manner of the present utility model on the basis of Embodiment 1.

[0033] As an implementation manner of this embodiment, a filter and a silencer are sequentially assembled in the air inlet 4 of the sound insulation cover. By arranging the filter and the silencer in the air inlet 4 of the sound insulation cover, impurities in the air are initially filtered, and at the same time, the noise generated when the air flows through is reduced by the silencer.

[0034] As another implementation manner of this embodiment, refer to the attached Figure 2 As shown in the figure, sound insulation cover air inlets 4 are provided on both sides of the bottom side of the sound insulation cover housing 1.

[0035] As another implementation manner of this embodiment, the frame type filter 3 adopts a detachable filter element frame type filter. By setting the detachable filter element frame type filter, when the filter element in the filter collects carbon powder and suspended substances in the air to a certain extent and can no longer be used, the filter element can be replaced at any time for further operation.

[0036] Embodiment 3

[0037] This embodiment further elaborates and supplements the implementation manner of the present utility model on the basis of Embodiment 1 or Embodiment 2.

[0038] As an implementation manner of this embodiment, the upper part of the air duct 5 is connected to the air inlet of the silent fan 2 by bolt fastening, and the lower part of the air duct 5 is connected to the upper part of the brush holder air duct 6 by bolt fastening. Through such bolt fastening connections, a specific air duct 5 is formed. When the silent fan 2 operates to generate wind pressure, a negative pressure is formed inside the sound insulation cover. External air forms a forced circulation air path through the air inlet 4 of the sound insulation cover, driving the carbon powder and air suspended substances generated by the operation of the unit to enter the specific air duct 5 after passing around the brush holder 7, and then entering the air inlet of the silent fan 2 to be collected by the frame type filter 3.

[0039] As another implementation manner of this embodiment, small holes are provided on the brush holder air duct 6, and the aperture of the small holes is larger than the diameter of the carbon powder and air suspended substances. When the silent fan 2 operates to draw air, a negative pressure is formed inside the sound insulation cover. External air enters the sound insulation cover through the air inlet 4 of the sound insulation cover to form a forced circulation air path, driving the carbon powder and air suspended substances generated by the operation of the unit to pass around the brush holder 7 and enter the brush holder air duct 6 through the small holes on the brush holder air duct 6, and then enter the air duct 5, and then enter the air inlet of the silent fan 2 to be collected by the frame type filter 3.

[0040] Embodiment 4

[0041] This embodiment further elaborates and supplements the implementation manner of the present utility model on the basis of Embodiment 1, Embodiment 2 or Embodiment 3.

[0042] As an implementation method of this embodiment, refer to the attached Figure 1 As shown, the soundproof enclosure housing 1 is provided with an inspection door 8. When the outgoing line of the brush holder 7 of the excitation motor fails or needs to be repaired, the equipment can be inspected by entering the soundproof enclosure through the inspection door 8.

[0043] As another implementation of this embodiment, the soundproof cover shell 1 is a frame box shell formed by welding multiple soundproof panels. The soundproof cover is configured as a frame box shell, and its internal space is large and spacious, and maintenance is more convenient.

[0044] As another implementation of this embodiment, the sound insulation board includes an outer metal plate and an inner metal plate, and the outer metal plate and the inner metal plate are fixedly connected. The fixed connection of the two layers of metal plates makes the sound insulation cover more solid and stable.

[0045] As another implementation of this embodiment, a honeycomb aluminum plate is arranged on the inner metal plate, and the honeycombs of the honeycomb aluminum plate are filled with sound-absorbing asbestos. By arranging a honeycomb aluminum plate on the inner metal plate and filling the honeycombs of the honeycomb aluminum plate with sound-absorbing asbestos, the noise of the unit during operation can be further reduced.

Claims

1. A new environmentally friendly, efficient and clean soundproof cover for motors, characterized in that: The invention comprises a soundproof enclosure shell (1), a silent fan (2), an air duct (5), a brush rack air duct (6), and a frame filter (3). The soundproof enclosure shell (1) is provided with a soundproof enclosure air inlet (4) on the side of the bottom end; the silent fan (2) is arranged on the top of the soundproof enclosure shell (1), and the frame filter (3) is connected to the air inlet of the silent fan (2); the brush rack air duct (6) is assembled on a brush rack (7), the upper part of the air duct (5) is connected to the air inlet of the silent fan (2), and the lower part of the air duct (5) is connected to the upper part of the brush rack air duct (6) to form a specific air duct (5). The silent fan (2) generates wind pressure when in operation, so that negative pressure is formed in the soundproof enclosure. External air passes through the soundproof enclosure air inlet (4) to form a forced circulation air path, and carbon powder and air suspension generated by the operation of the unit are driven to pass through the brush rack (7) around the specific air duct (5), and then enter the air inlet of the silent fan (2) to be collected by the frame filter (3).

2. A new environmentally friendly, efficient and clean soundproof cover for a motor according to claim 1, characterized in that: A filter and a silencer are sequentially installed in the air inlet (4) of the soundproof cover.

3. A new environmentally friendly, efficient and clean soundproof cover for a motor according to claim 2, characterized in that: Sound insulation cover air inlets (4) are provided on both sides of the bottom side of the sound insulation cover shell (1).

4. A new environmentally friendly, efficient and clean soundproof cover for a motor according to any one of claims 1 to 3, characterized in that: The frame filter (3) adopts a detachable filter element frame filter.

5. A new environmentally friendly, efficient and clean soundproof cover for a motor according to claim 4, characterized in that: The upper portion of the air duct (5) is connected to the air inlet of the silent fan (2) by means of bolts, and the lower portion of the air duct (5) is connected to the upper portion of the brush holder air duct (6) by means of bolts.

6. A new environmentally friendly, efficient and clean soundproof cover for a motor according to claim 5, characterized in that: The brush holder air duct (6) is provided with small holes, the diameter of which is larger than the diameter of the carbon powder and the air suspension.

7. The novel environmentally friendly, efficient and clean soundproof cover for a motor according to claim 4, characterized in that: An inspection door (8) is provided on the soundproof enclosure shell (1).

8. The novel environmentally friendly, efficient and clean soundproof cover for a motor according to claim 4, characterized in that: The sound insulation cover shell (1) is a frame box-type shell formed by welding a plurality of sound insulation panels.

9. The novel environmentally friendly, efficient and clean soundproof cover for a motor according to claim 8, characterized in that: The sound insulation board comprises an outer metal plate and an inner metal plate, and the outer metal plate is fixedly connected to the inner metal plate.

10. The novel environmentally friendly, efficient and clean soundproof cover for a motor according to claim 9, characterized in that: A honeycomb aluminum plate is arranged on the inner metal plate, and the honeycombs of the honeycomb aluminum plate are filled with sound-absorbing asbestos.

Images