CN102780310B - Noise reducing cover for air intake of motor cooler - Google Patents
Noise reducing cover for air intake of motor cooler Download PDFInfo
- Publication number
- CN102780310B CN102780310B CN201210289790.0A CN201210289790A CN102780310B CN 102780310 B CN102780310 B CN 102780310B CN 201210289790 A CN201210289790 A CN 201210289790A CN 102780310 B CN102780310 B CN 102780310B
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- China
- Prior art keywords
- cooler
- air inlet
- air intake
- described housing
- motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Frames (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention relates to a noise reducing cover for an air intake of a motor cooler. The noise reducing cover comprises a cylindrical shell with one end opened and the other end closed, wherein an air intake is formed on the sidewall of the shell; a perforated circular plate and a perforated tapered plate are fixed inside the closed end of the shell; the perforated tapered plate is located at the middle part of the perforated circular plate and the vertex of the perforated tapered plate faces the open end of the shell; and a sound absorption material is arranged between each of the perforated circular plate and the perforated tapered plate and the closed end of the shell. The noise reducing cover of the motor cooler air intake is added without changing the previous structure of the cooler air intake; the perforated plates and the sound absorption material are arranged inside the noise reducing cover so that the air intake noise of the cooler can be reduced in multiple ways; as a result, the running noise of the motor is reduced.
Description
Technical field
The present invention relates to the cooler of motor, specifically a kind of silencer cover for motor hollow cooler air inlet.
Background technology
Cooler of electric motor is the main heat exchanger components of motor, is the staple product that maintains motor operation, directly affect motor temperature rise, exert oneself and the life-span.Wherein, hollow cooler is a kind of conventional cooler taking air as coolant.
As shown in Figure 1, cooler 20 is arranged on the top of motor 10 to the cooling principle of hollow cooler, and air inlet 24 places of cooler 20 are provided with cooler fan 23, between the air inlet 24 of cooler 20 and air outlet 21, forms outer ventilation circuit 22; Electric motor fan 12 is installed, wind path 11 in forming in motor 10 between motor 10 and cooler 20.Interior wind path 11 takes inner motor 10 heat producing to cooler 20, by outer ventilation circuit 22, dissipation of heat is gone out.
This hollow cooler, does not all have noise-reducing structure at its air inlet 24 with air outlet 21 places.In the time that motor 10 and cooler 20 move simultaneously, motor 10 noise that especially pot motor produces can be delivered in environment by cooler 20, add that the operation of cooler 20 own also can produce noise, thereby cause total noise of whole motor high, do not meet the requirement of environmental noise.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of cooler of electric motor air inlet silencer cover is provided, this silencer cover can be eliminated the noise of cooler air inlet, reduces the operation noise of motor.
According to technical scheme of the present invention: a kind of cooler of electric motor air inlet silencer cover, comprise the barrel-type casing of an end opening, other end sealing, on the sidewall of described housing, have air inlet, the inside of described housings close end is fixed with perforation plectane and bore conical plate, described bore conical plate is positioned at the middle part of described perforation plectane and the vertex of a cone of described bore conical plate towards the openend of described housing, between described perforation plectane and described bore conical plate and the blind end of described housing, is provided with sound-absorbing material.
The openend of described housing is fixed with flange.
Described air inlet has multiple, is distributed on the sidewall of described housing.
Described air inlet place is fixed with web plate.
Described web plate is fixed on the inwall of described housing.
Described sound-absorbing material is superfine glass silk flosssilk wadding.
The outer wrap of described superfine glass silk flosssilk wadding has glass wool cloth.
Described housing is cylindrical shape.
Technique effect of the present invention is: the present invention is not changing on the basis of cooler air inlet original structure, increase air inlet silencer cover, be provided with perforated plate and sound-absorbing material in silencer cover inside, air intake noise that can multiple reduction cooler, thus reduce the operation noise of motor.
Brief description of the drawings
Fig. 1 is the schematic diagram of existing hollow cooler.
Fig. 2 is the structural representation that hollow cooler of the present invention is installed.
Fig. 3 is structural representation of the present invention.
Fig. 4 is the left view of Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
In Fig. 1～Fig. 4, comprise housing 1, perforation plectane 2, superfine glass silk flosssilk wadding 3, glass wool cloth 4, bore conical plate 5, web plate 6, flange 7, air inlet 8, motor 10, interior wind path 11, electric motor fan 12, cooler 20, air outlet 21, outer ventilation circuit 22, cooler fan 23, air inlet 24, silencer cover 30 etc.
As shown in Figure 3, Figure 4, the present invention is a kind of cooler of electric motor air inlet silencer cover 30, comprises the barrel-type casing 1 of an end opening, other end sealing, and housing 1 is preferably cylindrical shape.
On the sidewall of housing 1, have air inlet 8, air inlet 8 has multiple, is distributed on the sidewall of housing 1, and the size and number in hole is determined according to the size of housing 1 external diameter.Air inlet 8 places are fixed with web plate 6, to prevent that various foreign material from entering.Web plate 6 is fixed on the inwall of housing 1.
The inside of housing 1 blind end is fixed with perforation plectane 2 and bore conical plate 5, bore conical plate 5 is positioned at the perforation middle part of plectane 2 and the vertex of a cone of bore conical plate 5 openend towards housing 1, between perforation plectane 2 and bore conical plate 5 and the blind end of housing 1, is provided with sound-absorbing material.Sound-absorbing material preferably adopts superfine glass silk flosssilk wadding 3.Outside at superfine glass silk flosssilk wadding 3 is also enclosed with glass wool cloth 4, to prevent that glass fiber cotton 3 from dropping out.
The openend of housing 1 is fixed with flange 7.As shown in Figure 2, air inlet silencer cover 30 adopts bolt to put together on the air inlet 24 of cooler 20.This structure dismounting is easy, maintenance is convenient.
Operation principle of the present invention and the course of work are as follows: wind enters from the air inlet 8 of housing 1, the noise-reducing structure that housing 1 and perforation plectane 2, bore conical plate 5 form can absorb noise, and bore conical plate 5 plays good guide functions, be convenient to wind and enter cooler 20.Glass silk flosssilk wadding 3 is just equivalent to a dissipative muffler, absorb high-frequency noises, perforation plectane 2 is just equivalent to a reactive muffler with bore conical plate 5, absorb Low Medium Frequency noise, both combine, and are equivalent to form a complex muffler, and enter after the inner chamber of silencer cover 30 housings 1 with bore conical plate 5 by perforation plectane 2 when air, sound wave diffuses to the inwall of silencer cover 30, the air intake noise of multiple reduction cooler 20.
The present invention is simple in structure, effect is remarkable, can, not changing on the basis of cooler 20 air inlet 24 original structures, play good control action to the noise of its generation.
Claims (1)
1. a cooler of electric motor air inlet silencer cover, it is characterized in that: comprise an end opening, the barrel-type casing (1) of other end sealing, on the sidewall of described housing (1), have air inlet (8), the inside of described housing (1) blind end is fixed with perforation plectane (2) and bore conical plate (5), described bore conical plate (5) is positioned at the middle part of described perforation plectane (2) and the vertex of a cone of described bore conical plate (5) openend towards described housing (1), between described perforation plectane (2) and described bore conical plate (5) and the blind end of described housing (1), be provided with sound-absorbing material,
The openend of described housing (1) is fixed with flange (7);
Described air inlet (8) has multiple, is distributed on the sidewall of described housing (1);
Described air inlet (8) locates to be fixed with web plate (6);
Described web plate (6) is fixed on the inwall of described housing (1);
Described sound-absorbing material is superfine glass silk flosssilk wadding (3);
The outer wrap of described superfine glass silk flosssilk wadding (3) has glass wool cloth (4);
Described housing (1) is cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210289790.0A CN102780310B (en) | 2012-08-15 | 2012-08-15 | Noise reducing cover for air intake of motor cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210289790.0A CN102780310B (en) | 2012-08-15 | 2012-08-15 | Noise reducing cover for air intake of motor cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102780310A CN102780310A (en) | 2012-11-14 |
| CN102780310B true CN102780310B (en) | 2014-09-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210289790.0A Active CN102780310B (en) | 2012-08-15 | 2012-08-15 | Noise reducing cover for air intake of motor cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102780310B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864109B (en) * | 2015-01-22 | 2018-08-07 | 中国科学院声学研究所 | A kind of axial flow blower air inlet silencer |
| CN112202274A (en) * | 2020-11-03 | 2021-01-08 | 常州宝罗电机有限公司 | Air-cooled motor silencing structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005850A (en) * | 2010-10-29 | 2011-04-06 | 无锡哈电电机有限公司 | Noise-eliminating shock absorbing structure of motor cooler |
| CN201839149U (en) * | 2010-10-29 | 2011-05-18 | 南阳防爆集团股份有限公司 | Novel cooling system for external air path |
| CN102361365A (en) * | 2011-10-26 | 2012-02-22 | 中电电机股份有限公司 | Silencing top cover for motor |
| CN202798303U (en) * | 2012-08-15 | 2013-03-13 | 中电电机股份有限公司 | Motor cooler air inlet noise reduction cover |
-
2012
- 2012-08-15 CN CN201210289790.0A patent/CN102780310B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005850A (en) * | 2010-10-29 | 2011-04-06 | 无锡哈电电机有限公司 | Noise-eliminating shock absorbing structure of motor cooler |
| CN201839149U (en) * | 2010-10-29 | 2011-05-18 | 南阳防爆集团股份有限公司 | Novel cooling system for external air path |
| CN102361365A (en) * | 2011-10-26 | 2012-02-22 | 中电电机股份有限公司 | Silencing top cover for motor |
| CN202798303U (en) * | 2012-08-15 | 2013-03-13 | 中电电机股份有限公司 | Motor cooler air inlet noise reduction cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102780310A (en) | 2012-11-14 |
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