CN102780310A - Noise reducing cover for air intake of motor cooler - Google Patents
Noise reducing cover for air intake of motor cooler Download PDFInfo
- Publication number
- CN102780310A CN102780310A CN2012102897900A CN201210289790A CN102780310A CN 102780310 A CN102780310 A CN 102780310A CN 2012102897900 A CN2012102897900 A CN 2012102897900A CN 201210289790 A CN201210289790 A CN 201210289790A CN 102780310 A CN102780310 A CN 102780310A
- Authority
- CN
- China
- Prior art keywords
- air inlet
- cooler
- housing
- electric motor
- silencer cover
- Prior art date
- 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.)
- Granted
Links
Images
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 that is used for motor hollow cooler air inlet.
Background technology
Cooler of electric motor is the main heat exchanger components of motor, is the staple product of keeping motor operation, directly influence motor temperature rise, exert oneself and the life-span.Wherein, hollow cooler be a kind of be the cooler commonly used of coolant with the air.
The cooling principle of hollow cooler is as shown in Figure 1, and cooler 20 is installed in the top of motor 10, and air inlet 24 places of cooler 20 are equipped with cooler fan 23, wind path 22 outside between the air inlet 24 of cooler 20 and air outlet 21, forming; Electric motor fan 12 is installed, wind path 11 between motor 10 and cooler 20, forming in the motor 10.Interior wind path 11 takes the inner heats that produce of motor 10 to cooler 20, through outer wind path 22 heat is distributed.
This hollow cooler does not all have noise-reducing structure at its air inlet 24 with air outlet 21 places.When motor 10 and cooler 20 move simultaneously; The motor 10 especially noise of pot motor generation can be delivered in the environment through cooler 20; Add that cooler 20 operations 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; The barrel-type casing that comprises an end opening, other end sealing; Have air inlet on the sidewall of said housing; The internal fixation of said housings close end has perforation plectane and bore conical plate; Said bore conical plate is positioned at the vertex of a cone of middle part and said bore conical plate of said perforation plectane towards the openend of said housing, is provided with sound-absorbing material between the blind end of said perforation plectane and said bore conical plate and said housing.
The openend of said housing is fixed with flange.
Said air inlet has a plurality of, is distributed on the sidewall of said housing.
Said air inlet place is fixed with web plate.
Said web plate is fixed on the inwall of said housing.
Said sound-absorbing material is the superfine glass silk flosssilk wadding.
The external packets of said superfine glass silk flosssilk wadding is wrapped with glass wool cloth.
Said housing is a cylindrical shape.
Technique effect of the present invention is: the present invention is on the basis that does not change cooler air inlet original structure; Increase the air inlet silencer cover; In the silencer cover set inside perforated plate and sound-absorbing material are arranged, air intake noise that can multiple reduction cooler, thus reduce the operation noise of motor.
Description of 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 a structural representation of the present invention.
Fig. 4 is the left view of Fig. 3.
Embodiment
Be further described below in conjunction with the accompanying drawing specific embodiments of the invention.
Among 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 wind path 22, cooler fan 23, air inlet 24, silencer cover 30 etc.
Like Fig. 3, shown in 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.
Have air inlet 8 on the sidewall of housing 1, air inlet 8 has a plurality of, is distributed on the sidewall of housing 1, and the size in hole and quantity are decided according to the size of housing 1 external diameter.Air inlet 8 places are fixed with web plate 6, get into to prevent various foreign material.Web plate 6 is fixed on the inwall of housing 1.
The internal fixation of housing 1 blind end has perforation plectane 2 and bore conical plate 5; Bore conical plate 5 is positioned at the vertex of a cone of middle part and bore conical plate 5 of perforation plectane 2 towards the openend of housing 1, is provided with sound-absorbing material between the blind end of perforation plectane 2 and bore conical plate 5 and housing 1.Sound-absorbing material preferably adopts superfine glass silk flosssilk wadding 3.Outside at superfine glass silk flosssilk wadding 3 also is enclosed with glass wool cloth 4, drops out to prevent glass fiber cotton 3.
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.
The operation principle of the present invention and the course of work are following: wind gets into from the air inlet 8 of housing 1; Housing 1 can absorb noise with the noise-reducing structure that perforation plectane 2, bore conical plate 5 are formed; And bore conical plate 5 plays good guide functions, is convenient to wind and gets into cooler 20.Glass silk flosssilk wadding 3 just is equivalent to a dissipative muffler, absorbs high-frequency noises, and perforation plectane 2 just is equivalent to a reactive muffler with bore conical plate 5; Absorb the Low Medium Frequency noise; Both combine, and are equivalent to form a complex muffler, and after air gets into the inner chamber of silencer cover 30 housings 1 through perforation plectane 2 and bore conical plate 5; 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 be on the basis that does not change cooler 20 air inlets 24 original structures, the noise of its generation is played the better controlled effect.
Claims (8)
1. cooler of electric motor air inlet silencer cover; It is characterized in that: the barrel-type casing (1) that comprises an end opening, other end sealing; Have air inlet (8) on the sidewall of said housing (1); The internal fixation of said housing (1) blind end has perforation plectane (2) and bore conical plate (5); Said bore conical plate (5) is positioned at the vertex of a cone of middle part and said bore conical plate (5) of said perforation plectane (2) towards the openend of said housing (1), is provided with sound-absorbing material between the blind end of said perforation plectane (2) and said bore conical plate (5) and said housing (1).
2. according to the described cooler of electric motor air inlet of claim 1 silencer cover, it is characterized in that: the openend of said housing (1) is fixed with flange (7).
3. according to the described cooler of electric motor air inlet of claim 1 silencer cover, it is characterized in that: said air inlet (8) has a plurality of, is distributed on the sidewall of said housing (1).
4. according to claim 1 or 3 described cooler of electric motor air inlet silencer covers, it is characterized in that: said air inlet (8) locates to be fixed with web plate (6).
5. according to the described cooler of electric motor air inlet of claim 4 silencer cover, it is characterized in that: said web plate (6) is fixed on the inwall of said housing (1).
6. according to the described cooler of electric motor air inlet of claim 1 silencer cover, it is characterized in that: said sound-absorbing material is superfine glass silk flosssilk wadding (3).
7. according to the described cooler of electric motor air inlet of claim 6 silencer cover, it is characterized in that: the external packets of said superfine glass silk flosssilk wadding (3) is wrapped with glass wool cloth (4).
8. according to the described cooler of electric motor air inlet of claim 1 silencer cover, it is characterized in that: said 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 true CN102780310A (en) | 2012-11-14 |
| CN102780310B CN102780310B (en) | 2014-09-24 |
Family
ID=47125111
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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864109A (en) * | 2015-01-22 | 2016-08-17 | 中国科学院声学研究所 | Silencer for axial flow fan air inlet |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864109A (en) * | 2015-01-22 | 2016-08-17 | 中国科学院声学研究所 | Silencer for axial flow fan air inlet |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102780310B (en) | 2014-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106439959A (en) | Low noise and large suction range hood | |
| CN205402834U (en) | Make an uproar device and range hood fall | |
| WO2016054947A1 (en) | Vacuum cleaner | |
| CN202690540U (en) | Broadband silencer for fan | |
| CN106593961A (en) | Silencer and air conditioner with same | |
| CN206755541U (en) | Silencing case denoising device | |
| CN102780310B (en) | Noise reducing cover for air intake of motor cooler | |
| CN202798303U (en) | Motor cooler air inlet noise reduction cover | |
| JP2012207819A (en) | Silencer and silencing method | |
| CN201522846U (en) | Combined exhaust air and steam muffler | |
| CN205383669U (en) | Make an uproar device and range hood fall | |
| CN203812558U (en) | Micropore composite disc type silencer | |
| CN207278474U (en) | A kind of air compressor with decrease of noise functions | |
| CN206487543U (en) | A kind of diesel-driven generator exhaust silencer system | |
| CN202798302U (en) | Motor cooler air outlet noise reduction cover | |
| CN205895706U (en) | Range hood's silencer | |
| CN102769350A (en) | Air outlet noise reduction cover of motor cooler | |
| CN110318866B (en) | Power generator set | |
| CN210423168U (en) | Fan capable of reducing noise | |
| CN206471117U (en) | A kind of vortex type silencer | |
| CN207539095U (en) | A kind of inhibition noise structure for wind turbine | |
| CN202926551U (en) | Novel silencer | |
| CN108286533B (en) | Silencer for air inlet of axial flow fan | |
| CN202833035U (en) | Silencer with notch groove | |
| CN107882777A (en) | A kind of suppression noise structure for blower fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |