CN203608004U - Motor with noise reduction device - Google Patents
Motor with noise reduction device Download PDFInfo
- Publication number
- CN203608004U CN203608004U CN201320709919.9U CN201320709919U CN203608004U CN 203608004 U CN203608004 U CN 203608004U CN 201320709919 U CN201320709919 U CN 201320709919U CN 203608004 U CN203608004 U CN 203608004U
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- Prior art keywords
- motor
- air intake
- cover
- shield
- motor body
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- Expired - Fee Related
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- 230000003584 silencer Effects 0.000 claims description 28
- 239000011358 absorbing material Substances 0.000 claims description 12
- 239000000498 cooling water Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 abstract description 23
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000035515 penetration Effects 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006854 communication Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Abstract
The utility model belongs to the motor noise reduction technical field, and specifically relates to a motor with a noise reduction device; the motor comprises a motor body, an air inlet shield, an outer fan, and a cooling pipe; the motor body is a cylinder structure; the air inlet shield is arranged in a rear end of the motor body; the outer fan is positioned in the air inlet shield and arranged on a main shaft of the motor; the cooling pipe is uniformly distributed in a radial periphery direction of the motor body; an air outlet shield is arranged in a front end of the motor; the front end of the motor body is provided with the air outlet shield; a noise reduction shield is connected in a rear end of the air inlet shield of the rear end of the motor body; a noise reduction cylinder is arranged in the noise reduction shield. The motor is simple in structure, easy to realize, the rear end of the air inlet shield is added with the noise reduction cylinder and the noise reduction shield, so the path of ventilation noises passing in the air inlet shield is changed in many times, thereby effectively solving the problem of large ventilation noises caused by the direction penetration of the ventilation noises from the rear end of the air inlet shield; simultaneously, the front end of the motor body is added with the air outlet shield, an air outlet of the air outlet shield is arranged on a side wall, thereby effectively solving the problem of large ventilation noises caused by the direction penetration of the ventilation noises passing the cooling pipe and the front end of the motor body.
Description
Technical field
The utility model belongs to motor noise reduction technology field, is specifically related to a kind of motor with denoising device.
Background technology
Conventionally, air cooling motor all can have outer ventilation circuit, is realized body is lowered the temperature by outer ventilation circuit.Outer ventilation circuit is generally made up of external fan, fan housing, cooler etc.And adopt common fan housing structure at present, and there is defect in the outer ventilation circuit of formation, and motor ventilation noise is large, especially high-speed electric expreess locomotive.
Common air cooling motor outer ventilation line structure at present, is mainly made up of air intake cover, external fan, cooler (cooling water pipe).When motor operation, external fan rotation, throws away formation blast by air, and air-flow enters air intake cover from rear end air inlet.External fan rotation, can produce ventilation noise, ventilation noise is due to the obstruction of air intake cover, mainly spread out of from two paths: a part spreads out of from the air inlet of air intake cover rear end, another part spreads out of from shaft extension end through cooling water pipe, common this structure electric machine, and ventilation noise is obstructed little in propagation path, and there is no noise reduction measure, propagate into noise around large.
Utility model content
There is for air cooling motor prior art the problem that ventilation noise is large in the utility model, proposes a kind of motor with denoising device.
The technical solution of the utility model is: a kind of motor with denoising device, comprise motor body, air intake cover, external fan, cooling water pipe, motor entirety is columnar structured, air intake cover is arranged on the rear end of motor body, external fan is positioned at air intake cover inside and is arranged on the main shaft of motor, cooling water pipe is evenly distributed in motor body radial circumference direction, outlet housing is arranged on motor front end, the front end of motor body is provided with outlet housing, the air intake cover rear end of motor body tail end is connected with silencer cover, and silencer cover inside is provided with hush pipe.
The described motor with denoising device, described silencer cover is the cylindrical shell of one end sealing, on the sidewall of silencer cover, offers air inlet, and the bottom of silencer cover is connected with an annular hush pipe, and the height of hush pipe is less than the sidewall height of silencer cover.
The described motor with denoising device, described air intake cover is the cylindrical shell of one end sealing, and the bottom centre of air intake cover offers porose, is connected with an annular hush pipe at the edge in hole, and the height of hush pipe is less than the sidewall height of silencer cover.
The described motor with denoising device, is connected with sound-absorbing material layer on the bottom inside wall of described air intake cover, in the sidewall of hush pipe, silencer cover and bottom, is provided with sound-absorbing material layer.
The described motor with denoising device, described outlet housing is annular canister, on the lateral wall of cylinder, offers air outlet, air outlet is along the circumferential direction evenly distributed on the lateral wall of cylinder.
The described motor with denoising device, is connected with sound-absorbing material layer on the madial wall of described outlet housing and end face inner side.
The described motor with denoising device, the corner in described air intake cover, outlet housing is set to fillet or chamfering.
The beneficial effects of the utility model are: 1, the utility model is simple in structure, it is convenient to implement, increase hush pipe and silencer cover at air intake cover tail end, repeatedly change the path that ventilation noise spreads out of air intake cover, efficiently solved ventilation noise and directly spread out of from air intake cover rear end and cause the problem that ventilation noise is large.Meanwhile, increase outlet housing at the front end of motor main body, the air outlet of outlet housing is arranged on sidewall, also efficiently solves ventilation noise and directly spreads out of and cause the problem that ventilation noise is large from the front end of motor main body through cooling water pipe.In addition, hush pipe is set in silencer cover and changes air intake path, repeatedly changed the propagation path of noise simultaneously, noise is repeatedly obstructed in communication process and reduction greatly.
2, the motor of the utility model band denoising device, takes to set out fan housing at motor air outlet place, plays secondary Noise Reduction.In outlet housing, establish sound-absorbing material layer, reduce noise; Outlet housing is taked side air-out, changes noise transmission path, reduces noise.
3, the motor of the utility model band denoising device, the corner in its air intake cover, outlet housing is designed to fillet or chamfering form, effectively prevention, reduction air eddy noise.
Accompanying drawing explanation
Fig. 1 is the general outer ventilation circuit structural representation adopting of prior art motor;
Fig. 2 is the outer ventilation circuit structural representation that the utility model adopts;
In figure, 1 is motor main body, and 2 is air intake cover, and 3 is external fan, and 4 is cooling water pipe, and 5 is outlet housing, and 501 is air outlet, and 6 is silencer cover, and 601 is air inlet, and 7 is hush pipe.
Embodiment
Embodiment 1: a kind of motor with denoising device, comprise motor body, air intake cover, external fan, cooling water pipe, outlet housing, air intake cover is arranged on the rear end of motor body, it is inner and be arranged on cooling water pipe on the main shaft of motor and be evenly distributed in motor body radial circumference direction that external fan is positioned at air intake cover, the front end of motor body is provided with outlet housing, outlet housing is annular canister, on the lateral wall of cylinder, offer air outlet, air outlet be shaped as rectangle or square, air outlet is uniformly distributed along the circumferencial direction of outlet housing; The air intake cover rear end of motor body rear end is connected with silencer cover, and silencer cover inside is provided with hush pipe; Silencer cover is the cylindrical shell of one end sealing, on the sidewall of silencer cover, offers air inlet, and the bottom of silencer cover is connected with an annular hush pipe, and the height of hush pipe is less than the sidewall height of silencer cover; Air intake cover is the cylindrical shell of one end sealing, and the bottom centre of air intake cover offers porose, is connected with an annular hush pipe at the edge in hole, and the height of hush pipe is less than the sidewall height of silencer cover.Be arranged on the hush pipe on silencer cover, hush pipe diameter on air intake cover is unequal with being arranged on, and forms the wind path of reversion between the two.
On the bottom inside wall of described air intake cover, be connected with sound-absorbing material layer, in the sidewall of hush pipe, silencer cover and bottom, be provided with sound-absorbing material layer; On the madial wall of described outlet housing, be connected with sound-absorbing material layer; Corner in air intake cover, outlet housing is designed to fillet or chamfering form.
Working method: when motor operation, external fan rotation, throws away formation blast by air, and air-flow from the side net window enters fan housing, and this is conducive to expand air-admitting surface.A ventilation noise part is absorbed by sound-absorbing material, and another part, due to the obstruction of end shield cylinder, mainly spreads out of from the side, and after the multistage crooked route forming through hush pipe, noise losses part energy, spreads out of noise and greatly reduce.Motor body front end is provided with outlet housing, and secondary reduces noise.Outlet housing inner side is provided with sound-absorbing material layer, absorbs a part of noise, and side air-out mouth has changed noise transmission path, makes noise lose part energy in tortuous communication process, and noise is minimized.And the corner in air intake cover, outlet housing is designed to fillet or chamfering form, effectively prevent, reduced air eddy noise.
Claims (7)
1.
?a kind of motor with denoising device, comprise motor body, air intake cover, external fan, cooling water pipe, motor entirety is columnar structured, air intake cover is arranged on the rear end of motor body, external fan is positioned at air intake cover inside and is arranged on the main shaft of motor, cooling water pipe is evenly distributed in motor body radial circumference direction, outlet housing is arranged on motor front end, it is characterized in that: the front end of motor body is provided with outlet housing, the air intake cover rear end of motor body tail end is connected with silencer cover, and silencer cover inside is provided with hush pipe.
2.
?motor with denoising device according to claim 1, it is characterized in that: described silencer cover is the cylindrical shell of one end sealing, on the sidewall of silencer cover, offer air inlet, the bottom of silencer cover is connected with an annular hush pipe, and the height of hush pipe is less than the sidewall height of silencer cover.
3.
?motor with denoising device according to claim 1, it is characterized in that: described air intake cover is the cylindrical shell of one end sealing, the bottom centre of air intake cover offers porose, is connected with an annular hush pipe at the edge in hole, and the height of hush pipe is less than the sidewall height of silencer cover.
4.
?motor with denoising device according to claim 1, is characterized in that: on the bottom inside wall of described air intake cover, be connected with sound-absorbing material layer, in the sidewall of hush pipe, silencer cover and bottom, be provided with sound-absorbing material layer.
5.
?motor with denoising device according to claim 1, is characterized in that: described outlet housing is annular canister, on the lateral wall of cylinder, offers air outlet, and air outlet is along the circumferential direction evenly distributed on the lateral wall of cylinder.
6.
?motor with denoising device according to claim 5, is characterized in that: on the madial wall of described outlet housing and end face inner side, be connected with sound-absorbing material layer.
7.
?motor with denoising device according to claim 1, is characterized in that: the corner in described air intake cover, outlet housing is set to fillet or chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320709919.9U CN203608004U (en) | 2013-11-12 | 2013-11-12 | Motor with noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320709919.9U CN203608004U (en) | 2013-11-12 | 2013-11-12 | Motor with noise reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203608004U true CN203608004U (en) | 2014-05-21 |
Family
ID=50720662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320709919.9U Expired - Fee Related CN203608004U (en) | 2013-11-12 | 2013-11-12 | Motor with noise reduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203608004U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109512292A (en) * | 2017-09-18 | 2019-03-26 | 广东美的生活电器制造有限公司 | Bottom cover, frame component and cooking machine |
| CN111096708A (en) * | 2018-10-25 | 2020-05-05 | 广东美的白色家电技术创新中心有限公司 | Air outlet cover assembly of dust collector and dust collector with same |
| CN111293821A (en) * | 2019-12-26 | 2020-06-16 | 上海电气集团上海电机厂有限公司 | Ventilation and noise reduction device for air-cooled motor |
-
2013
- 2013-11-12 CN CN201320709919.9U patent/CN203608004U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109512292A (en) * | 2017-09-18 | 2019-03-26 | 广东美的生活电器制造有限公司 | Bottom cover, frame component and cooking machine |
| CN111096708A (en) * | 2018-10-25 | 2020-05-05 | 广东美的白色家电技术创新中心有限公司 | Air outlet cover assembly of dust collector and dust collector with same |
| CN111293821A (en) * | 2019-12-26 | 2020-06-16 | 上海电气集团上海电机厂有限公司 | Ventilation and noise reduction device for air-cooled motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 |