CN203608006U - Motor noise control device - Google Patents
Motor noise control device Download PDFInfo
- Publication number
- CN203608006U CN203608006U CN201320756327.2U CN201320756327U CN203608006U CN 203608006 U CN203608006 U CN 203608006U CN 201320756327 U CN201320756327 U CN 201320756327U CN 203608006 U CN203608006 U CN 203608006U
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- Prior art keywords
- motor
- noise
- damping
- control device
- sound
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- 238000013016 damping Methods 0.000 claims abstract description 64
- 238000010521 absorption reaction Methods 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims description 26
- 239000011358 absorbing material Substances 0.000 claims description 20
- 230000008030 elimination Effects 0.000 claims description 17
- 238000003379 elimination reaction Methods 0.000 claims description 17
- 230000030279 gene silencing Effects 0.000 claims description 15
- 239000002131 composite material Substances 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a motor noise control device. The motor noise control device comprises a sound absorption part, a damping structure, a vibration damping element and a plate structure with a reinforced rib. The sound absorption part and the damping structure are disposed at one or more of the following parts: an air inlet or an air outlet of the motor, a part inside the motor in need of sound absorption and denoising, and a vibrating plane of the motor. The vibration damping element is attached to or sprayed on the vibrating plane of the motor. The motor noise control device is convenient to install and used for effectively controlling noise of the motor instead of changing or replacing an original part of the motor. The motor noise control device can select to control pneumatic noise, structural noise and vibration-induced noise of the motor according to the actual conditions of the motor. The motor noise control device can effectively reduce noise of the motor, ensure ventilation and heat radiating effects of the motor, and prevent the motor from being overhigh in temperature to influence safety and service lifetime.
Description
Technical field
The utility model relates to Industrial noise control and administers technical field, particularly relates to the field of noise control of motor.
Background technology
Along with the development of industrial economy, motor is widely used in industrial and agricultural production, routine work and family life, but motor can produce noise in the time of operation, particularly large-size machine can produce strong noise in operation process, has had a strong impact on workman's condition of work and the living environment of surrounding resident.And present some external and domestic industry, for example military industry, has clear and definite limit value to the noise of motor, if noise of motor value exceeds standard, also can directly affect outlet and the sale of motor.So the noise problem of research and control motor is significant to the competitiveness of environmental protection and raising motor.
The overall noise of motor is generally made up of machinery noise, aerodynamic noise and electromagnetic noise.The noise reduction process of most motor is by improving machining accuracy, improvement or change the mode of motor component and reach noise reduction, and improve undoubtedly the time that parts spend and therefore bring risk all can cause economic loss to producer.So need to consider that to the noise control of motor noise reduction is good, easy construction and the little measure of required cost.
Utility model content
Technical problem to be solved in the utility model is, for the noise problem of motor, provides a kind of noise of motor control device easy for installation, and it can effectively control the noise of motor.
The technical solution of the utility model is: described noise of motor control device comprises sound absorption parts and noise elimination structure, and described sound absorption parts and noise elimination structure are arranged on one or several position in the following position of motor: motor porting place, motor internal need noise reduction by absorption position, motor to have the surface of vibration.
Described noise of motor control device also comprises damping vibration attenuation element and the plate structure that reinforcement is installed, and described damping vibration attenuation element attaches or is sprayed on motor and has the surface vibrating.
The material of described damping vibration attenuation element is visco-elastic damping material and composite damping material; Described damping material attaches or is sprayed on the surface of shell that motor internal needs vibration damping; The structure of described damping material is free damping layer structure, interval free damping layer structure, low frequency compound damping structure or constrained damping structure.
Described motor can be box type electrical machine, installs silencing channel additional at motor air inlet; Described sound absorption parts comprise: be arranged on acoustic board for silencing channel in motor silencing channel, be arranged on acoustic board for spiral case on motor volute, be arranged on motor ventilating duct inwall acoustic board for ventilating duct, be arranged on cooler of electric motor top acoustic board for cooler, be arranged on the chimney fan acoustic board of motor chimney fan inwall; Described acoustic board employing is gluing to connect or installs by the fixing mode of machinery.Described noise of motor control device also comprises the spiral case being arranged on motor volute damping sound absorption structure, described spiral case comprises spiral case inwall, attached damping material and sound-absorbing material by damping sound absorption structure, described damping material attaches or is sprayed on spiral case inwall both sides or one-sided, and described sound-absorbing material is attached on damping material.
Described noise elimination structure adopts muffler, and described muffler is resistive or reactive muffler or impedance complex formula muffler, muffler be shaped as straight pipe type or bendable; The end of noise elimination structure is provided with sound-absorbing material.
Described sound absorption parts can be sound-absorbing porous material, resonance sound-absorbing material or composite sound-absorbing material, and described composite sound-absorbing material can be made up of multiple sound-absorbing material or structure.
The utility model also provides a kind of motor with oise damping means, comprises motor main body and above-mentioned noise of motor control device.
The utility model is easy for installation, adopts this noise of motor control device can effectively control the noise of motor, and does not need the primitive part of change or replacing motor.This noise of motor control device can be according to the actual conditions of motor, and the noise that optionally aerodynamic noise to motor, construct noise and vibration cause is controlled.Not only can effectively reduce the noise of motor, and can guarantee the result of ventilating heat dissipation of motor, can not make motor affect its fail safe and useful life because of excess Temperature.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the box type electrical machine oise damping means in the utility model;
Fig. 2 is the spiral case damping sound absorption structure schematic diagram in the utility model.
In figure: 1, silencing channel, 2, silencing channel acoustic board, 3, spiral case, 4, spiral case acoustic board, 5, spiral case damping sound absorption structure, 6, ventilating duct, 7, ventilating duct acoustic board, 8, cooler, 9, cooler acoustic board, 10, support, 11, chimney fan, 12, chimney fan acoustic board, 13, sound-absorbing material, 14, spiral case inwall, 15, damping material.
Embodiment
For the utility model can being clearly understood and easily realizing, below in conjunction with drawings and Examples, the utility model is further described.
Described noise of motor control device comprises sound absorption parts, noise elimination structure, damping vibration attenuation element and the plate structure of reinforcement is installed, and described sound absorption parts and noise elimination structure are arranged on one or several position in following motor position: motor porting place, motor internal need noise reduction by absorption position, motor to have the surface of vibration.Described damping vibration attenuation element attaches or is sprayed on motor and has the surface vibrating.
Below the utility model noise of motor control device is described in further detail.
1. adopt induction noise and the exhaust noise of noise elimination structure to motor to control, reduce the aerodynamic noise of motor.What noise elimination structure adopted is muffler, according to the sound deadening capacity demand of motor reality and ventilation and heat demand, can select resistive and reactive muffler and complex muffler.The shape of muffler can be selected straight pipe type or bendable and some other form according to the demand of sound deadening capacity.Noise elimination structure is arranged on the porting place of motor, in order further to improve noise reduction, can add sound-absorbing material to increase sound deadening capacity at the end of noise elimination structure.
2. adopt sound absorption parts and noise elimination structure to comprise that to motor internal the noise of inlet and outlet position controls, can reduce the aerodynamic noise of wind path, the noise of construct noise and generation of vibration.Sound absorption parts and noise elimination structure that motor internal is arranged, can be sound-absorbing porous material, can be also resonant silencing structure, or the composite sound damping structure of multiple material or structure composition.Sound absorption parts and noise elimination structure are arranged in motor internal and comprise that inlet and outlet needs the position of noise reduction by absorption.
3. attach on the surface that has vibration or spraying damping vibration attenuation element, reduce the vibration of surface of shell, or by reinforcement processing, strengthen the intensity of plate, and then vibration is suppressed, reduce the structural fatigue that vibration causes, weaken its structure acoustic radiation simultaneously.Damping vibration attenuation element can be selected visco-elastic damping material and composite damping material.Damping material, by attaching or be sprayed on the surface of shell that has vibration and need to control, reduces structure radiated noise thereby not only can reduce its structural vibration, and can suppress the vibration of structure itself, reduces the structural fatigue that vibration causes.The structure of damping material can comprise free damping layer structure, interval free damping layer structure, low frequency compound damping structure and constrained damping structure.Wherein the selection of damping layer can be according to actual user demand, and weatherability and environment for use are determined.
Take certain motor as example, for the actual service condition of motor and its noise problem, adopt comprehensive noise control device to carry out noise reduction process, first adopt silencing channel to control the aerodynamic noise of motor air inlet, then adopt damping material and sound-absorbing material to process the thin-wall construction of fan periphery, can further reduce on the one hand the aerodynamic noise of fan, can suppress on the other hand the vibration of thin-walled, reduce surperficial construct noise radiation, on the last rigid plane that comprises air outlet in whole motor outer ventilation circuit inside, arrange sound-absorbing material, to the processing that absorbs sound of the noise of motor internal and air outlet.
Be specifically introduced as an example of box type electrical machine example below, as shown in Figure 1, described motor is box type electrical machine, comprise support 10, install silencing channel 1 additional at motor air inlet, in silencing channel inside, acoustic board 2 for silencing channel is installed, can further improve the sound deadening capacity of silencing channel.The mounting means of silencing channel directly adopts machinery fixing.Then be that the thin-wall construction of fan periphery is processed, wherein typically as the processing of motor volute 3: on spiral case surface, acoustic board 4 for spiral case is installed; Attach successively damping material 15 and sound-absorbing material 13 in spiral case inwall 14 both sides, form spiral case damping sound absorption structure 5(as shown in Figure 2), reach the object that vibration damping absorbs sound.Then also attach damping material at two end faces of bearing housing, further reduce the vibration of housing.The installation of damping material and sound-absorbing material directly adopts gluing connecing.Finally to arrange sound-absorbing material on whole motor outer ventilation circuit inside comprises the rigid plane of air outlet, specific as follows: at motor ventilating duct 6 inwalls, acoustic board 7 for ventilating duct to be installed, reduce the wind noise that of spiral case, then at cooler 8 acoustic board 9 for top layout cooler, reduce the noise of motor internal, finally at chimney fan 11 inwalls, acoustic board 12 for chimney fan is installed, is further reduced the wind noise that of motor.The installation of sound-absorbing material can adopt glue directly bonding, also can install by the fixing mode of machinery.
The utility model also provides a kind of motor with oise damping means, comprises motor main body and above-mentioned noise of motor control device.
The above; it is only preferably specific embodiment of the utility model; but protection range of the present utility model is not limited to this, the simple equivalence of doing according to claims of the present utility model and description changes and modifies, and still belongs in protection range of the present utility model.
Claims (7)
1. a noise of motor control device, comprise sound absorption parts and noise elimination structure, it is characterized in that, described sound absorption parts and noise elimination structure are arranged on one or several position in the following position of motor: motor porting place, motor internal need noise reduction by absorption position, motor to have the surface of vibration.
2. noise of motor control device according to claim 1, is characterized in that, also comprises damping vibration attenuation element and the plate structure that reinforcement is installed, and described damping vibration attenuation element attaches or is sprayed on motor and has the surface vibrating.
3. noise of motor control device according to claim 2, is characterized in that: the material of described damping vibration attenuation element is visco-elastic damping material and composite damping material; Described damping material attaches or is sprayed on the surface of shell that motor internal needs vibration damping; The structure of described damping material is free damping layer structure, interval free damping layer structure, low frequency compound damping structure or constrained damping structure.
4. noise of motor control device according to claim 1, is characterized in that, described motor is box type electrical machine, at motor air inlet, silencing channel is installed; Described sound absorption parts comprise: be arranged on acoustic board for silencing channel in motor silencing channel, be arranged on acoustic board for spiral case on motor volute, be arranged on motor ventilating duct inwall acoustic board for ventilating duct, be arranged on cooler of electric motor top acoustic board for cooler, be arranged on the chimney fan acoustic board of motor chimney fan inwall; Described acoustic board employing is gluing to connect or installs by the fixing mode of machinery.
5. noise of motor control device according to claim 4, it is characterized in that: also comprise the spiral case being arranged on motor volute damping sound absorption structure, described spiral case comprises spiral case inwall, damping material and sound-absorbing material by damping sound absorption structure, described damping material attaches or is sprayed on spiral case inwall both sides or one-sided, and described sound-absorbing material is attached on damping material.
6. noise of motor control device according to claim 1, is characterized in that: described noise elimination structure adopts muffler, and described muffler is resistive or reactive muffler or impedance complex formula muffler, muffler be shaped as straight pipe type or bendable; The end of noise elimination structure is provided with sound-absorbing material.
7. noise of motor control device according to claim 1, is characterized in that: described sound absorption parts are sound-absorbing porous material, resonance sound-absorbing material or composite sound-absorbing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320756327.2U CN203608006U (en) | 2013-11-27 | 2013-11-27 | Motor noise control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320756327.2U CN203608006U (en) | 2013-11-27 | 2013-11-27 | Motor noise control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203608006U true CN203608006U (en) | 2014-05-21 |
Family
ID=50720664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320756327.2U Expired - Fee Related CN203608006U (en) | 2013-11-27 | 2013-11-27 | Motor noise control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203608006U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973458A (en) * | 2017-12-28 | 2019-07-05 | 信孚产业股份有限公司 | Reduced noise pneumatic motor |
| CN111981616A (en) * | 2020-08-28 | 2020-11-24 | 厦门环寂高科有限公司 | Low-vibration and low-noise fresh air handling unit based on particle damping |
| CN112564431A (en) * | 2020-12-14 | 2021-03-26 | 一汽奔腾轿车有限公司 | Noise optimization method for driving motor system for new energy automobile |
-
2013
- 2013-11-27 CN CN201320756327.2U patent/CN203608006U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973458A (en) * | 2017-12-28 | 2019-07-05 | 信孚产业股份有限公司 | Reduced noise pneumatic motor |
| CN111981616A (en) * | 2020-08-28 | 2020-11-24 | 厦门环寂高科有限公司 | Low-vibration and low-noise fresh air handling unit based on particle damping |
| CN112564431A (en) * | 2020-12-14 | 2021-03-26 | 一汽奔腾轿车有限公司 | Noise optimization method for driving motor system for new energy automobile |
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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 |