CN109286270A - A kind of noise reduction structure of motor, fan assembly and new blower - Google Patents
A kind of noise reduction structure of motor, fan assembly and new blower Download PDFInfo
- Publication number
- CN109286270A CN109286270A CN201710588407.4A CN201710588407A CN109286270A CN 109286270 A CN109286270 A CN 109286270A CN 201710588407 A CN201710588407 A CN 201710588407A CN 109286270 A CN109286270 A CN 109286270A
- Authority
- CN
- China
- Prior art keywords
- motor
- cover
- sound
- noise reduction
- reduction structure
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
Abstract
The present invention relates to a kind of noise reduction structure of motor, fan assembly and new blowers, including a motor cover, motor is mounted in the cavity surrounded by the motor cover, motor shaft is pierced by from the side of the motor cover, several heat release holes are provided in the motor cover, it is provided with the first sound attenuation assembly and/or the second sound attenuation assembly in the cavity, described first disappears component and the second sound attenuation assembly being radially arranged around the motor in motor.The present invention is surrounded motor wherein using motor cover, and sound attenuation assembly is installed in motor cover, can effectively eliminate the noise that motor is generated when running at high speed.
Description
Technical field
The present invention relates to a kind of noise reduction structure of motor, at the same be related to it is a kind of include the noise reduction structure of motor fan assembly
And the new blower of the fan assembly is installed.
Background technique
Currently, indoor generally by installation fresh air power traction into outdoor fresh air, to guarantee the oxygen content of room air and new
Freshness, new blower are connected to by fresh wind tube with outdoor, to outdoor air be introduced indoor.
It is generally worked using motor driven impeller in new blower, in order to increase air quantity to improve Clean air delivery rate, is just needed
Increase motor speed, and motor is in when running at high speed state, motor body can generate very big noise, have in body space
It is difficult to design complicated noise-reducing structure under conditions of limit.The prior art is usually to paste noise reduction in internal body in response to the above problems
Sponge, this way structure is simple, and easy for installation, cost is relatively low, but sound-absorbing effect is very unsatisfactory, and noise damping space is small.
Summary of the invention
The present invention solves the technical problem of provide a kind of noise that can be effectively reduced and generate when motor work
Noise reduction structure of motor, while providing and a kind of including the fan assembly of the noise reduction structure of motor and the new of the fan assembly be installed
Blower.
To achieve the above object, the technical scheme is that
A kind of noise reduction structure of motor, including a motor cover, motor are mounted in the cavity surrounded by the motor cover, electricity
Arbor is pierced by from the side of the motor cover, several heat release holes are provided in the motor cover, are arranged in the cavity
There are the first sound attenuation assembly and/or the second sound attenuation assembly, described first disappears component and the second sound attenuation assembly radially enclosing in motor
It is arranged around the motor.
Further, first sound attenuation assembly is to be made of multiple sound muscle of leading for mutually staggering setting radially, multiple
It is described to lead sound muscle enclose and be arranged in a ring around motor.
Further, second sound attenuation assembly is sound-absorbing sponge, and the sound-absorbing sponge is arranged in a ring around motor.
Further, the motor cover is mutually fastened to connect and be formed by seperated the first cover and the second cover, in institute
It states and is provided with heat release hole on the first cover and the second cover, the motor shaft is pierced by by the center of the second cover.
Further, first cover and/or the second cover are cone disk type structure.
Further, the heat release hole on second cover is arranged on the center disc of cone disk type structure, first cover
Heat release hole on body corresponds to first sound attenuation assembly and the setting of the second sound attenuation assembly.
Further, it is provided at least one in the motor cover and fixes bracket.
Another technical solution of the invention is:
A kind of fan assembly, including motor and wind wheel component, the wind wheel component is fixedly connected with motor shaft, in the electricity
Noise reduction structure of motor as described above is installed on machine.
Further, air inducing circle is additionally provided in the inlet side of the wind wheel component.
Another technical solution of the invention is:
A kind of new blower, including main body, are provided with air inlet and air outlet, in air inlet and air outlet on main body
Between air duct in fan assembly as claimed in claim 8 or 9 is installed.
In conclusion a kind of noise reduction structure of motor provided by the invention, fan assembly and new blower, pacify in the outside of motor
A motor cover is filled, motor is surrounded wherein using motor cover, and sound attenuation assembly is installed in motor cover, be can effectively eliminate
The noise that motor is generated when running at high speed, noise can reduce 5-8dB (A).
Detailed description of the invention
Fig. 1 is the structure chart that motor of the present invention is mounted in new blower；
Fig. 2 is the Structure explosion diagram of fan assembly of the present invention；
Fig. 3 is the structure section figure of fan assembly of the present invention；
Fig. 4 is the structure chart of noise reduction structure of motor of the present invention.
As shown in Figures 1 to 4, main body 1, air inlet 2, air outlet 3, air duct 4, fan assembly 5, pedestal 6, return air inlet 7,
Motor 8, wind wheel component 9, motor shaft 10, air-ducting ring 11, impeller 12, motor cover 13, the first cover 13a, the second cover 13b, card
Fixing structure 14, screw fixing seat 15 lead sound muscle 16, sound-absorbing sponge 17, fixed bracket 18, air inducing circle 19, protrusion 20, mounting plate
21, mounting hole 22, mounting base 23, mounting hole 24, mounting hole 25, reinforcing rib 26, heat release hole 27, heat release hole 28.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing:
Embodiment one:
As shown in Figure 1, a kind of new blower provided in this embodiment, is in the main body 1 of one-shaped tubular including entirety,
One end of main body 1 is provided with air inlet 2, the other end of main body 1 is provided with air outlet 3, in air inlet 2 and air outlet 3
Between air duct 4 in fan assembly 5 is installed, be disposed between air inlet 2 and fan assembly 5 primary filter, row
Wind blower and high efficiency particulate air filter (not shown).Air inlet 2 is connected to by fresh wind tube with outdoor, for by the fresh sky of outdoor
Gas quote main body 1 in, by fresh wind tube introduce outdoor air under the action of fan assembly 5 successively by primary filter,
Interior is sent into after high efficiency particulate air filter from air outlet 3, the oxygen content of room air is improved, improves the freshness of room air.?
It is additionally provided with pedestal 6 on main body 1, return air inlet 7 is provided on pedestal 6, room air enters main body 1 by return air inlet 7
Interior participation circulation, is provided with air returning valve at return air inlet 7, controls whether room air participates in by controlling the opening and closing of air returning valve
Air circulation.
Embodiment two:
As shown in Figure 1 to Figure 3, a kind of fan assembly 5 provided in the present embodiment, including motor 8 and wind wheel component 9, wind
Wheel assembly 9 is mounted on the inlet side in air duct 4, and motor 8 is mounted on the air side of wind wheel component 9, wind wheel component 9 and motor shaft 10
It is fixedly connected.
Wherein, wind wheel component 9 includes two layers of horn-like and coaxial air-ducting ring 11, and leaf is arranged in the small end of air-ducting ring 11
12 are taken turns, passes through multiple wind blade (not shown)s being arranged in the axial direction between two layers of air-ducting ring 11 and connects.Air-ducting ring
Motor 8 is installed in the air side of 11 big ends, installs noise reduction structure of motor on motor 8.When motor 8 works, drive wind wheel component 9 high
Speed rotation, realizes fluid accelerated motion in the straight direction and supercharging effect, to improve air output.
As shown in Figure 1, being additionally provided with air inducing circle 19, the shape of air inducing circle 19 in the inlet side of wind wheel component 9 in the present embodiment
Shape and the shape in air duct 4 match, and the central through hole that there is air to flow through at center, the small end of wind wheel component 9 is located at after installation
In the central through hole of air inducing circle 19.The leeward side of air inducing circle 19 is provided with two layers of protrusion 20 in a ring, the protrusion 20 of outer layer
Generally oval shape, two sides have straightway, and mounting plate 21 for fixing is arranged in the outside of straightway, is installing
Mounting hole 22 is provided on plate, two straightways are downwardly extending the mounting base 23 of 19 bottom of air inducing circle, in mounting base 23
It is provided with mounting hole 24, air inducing circle 19 is fixed on the inner wall in air duct 4 by three screws.
Air inducing circle 19 by air duct 4 zone of positive pressure and negative pressuren zone keep apart, while negative pressuren zone air-flow being made to uniformly enter wind
Wheel, makes to be accelerated in air flow collection, uniform to form air-flow before entering wind wheel
Velocity field and pressure field.Meanwhile under conditions of having air inducing circle 19, the discharge coefficient of wind wheel can also increase.
Embodiment three:
As shown in Figures 2 to 4, a kind of noise reduction structure of motor provided in the present embodiment, including a motor cover 13, motor
8 are mounted in the cavity surrounded by motor cover 13.For the ease of installation, motor cover 13 is seperated structure, by the first cover 13a
The connection that is mutually fastened with the second cover 13b is formed, and is tied between the first cover 13a and the second cover 13b by multiple fixings
Structure 14 is fixedly connected, while being also correspondingly arranged on multiple screw fixing seats 15, is fixed together by multiple screws.Motor
Axis 10 is pierced by by the center of the second cover 13b.
In the present embodiment, preferably the first cover 13a and the second cover 13b are all made of cone disk type structure, are integrally in after fastening
Disk-like structure is bored, the thickness on central axis is maximum, and the thickness of outer circumferential position is minimum.It will can also only be located at windward side one
Second cover 13b of side uses cone disk type structure, and the first cover 13a positioned at leeward side side uses disk structure.In this way
Be conducive to flow through motor cover 13 from the air that wind wheel component 5 is blown out, not will increase flow resistance, while being also conducive to motor cover 13
Heat dissipation.Multiple reinforcing ribs 26 outwardly protruded are additionally provided with, on the first cover 13a to increase the structural strength of motor cover 13.
The first sound attenuation assembly and/or the second sound attenuation assembly are provided in the cavity surrounded by motor cover 13, wherein first
Sound attenuation assembly is to be made of multiple sound muscle 16 of leading for mutually staggering setting, and the second sound attenuation assembly uses sound-absorbing sponge 17.In order to mention
High erasure effect, sound muscle 16 and sound-absorbing sponge 17 are led in setting simultaneously preferably in motor cover 13.
It in the present embodiment, leads sound muscle 16 and is set as two layers, lead radially the setting around motor 8 in motor 8 of sound muscle 16 two layers
It sets.It wherein leads sound muscle 16 and is fixed on the inner wall of the first cover 13a for one layer, another layer leads sound muscle 13b and is fixed on the second cover 13b
Inner wall on.Be arranged two layers inside motor cover 13 and lead sound muscle 16, led at two layers formed between sound muscle 16 it is mazy lead sound channel,
The sound wave that generates is cancelled out each other a part in 13 inside roundtrip of motor cover when operating motor 8, and principle is to make original the
One sound wave propagated forward is returned to origin by leading reflection between 13 wall of sound muscle 16 and motor cover, and is turned back again to forward pass
It broadcasts, which converges with second sound wave propagated forward not yet reflected, and the two is equal on amplitude, poor in phase
The odd-multiple of 180 degree, to interfere with each other and offset, while reflected energy of the sound wave between each interface cuts out a part.
The sound-absorbing sponge 17 of second sound attenuation assembly is arranged around motor 8 in a ring radially, and is arranged and is leading sound muscle 16
Outside.It is internally provided with fluffy sound-absorbing sponge 17 in motor cover 13, its role is to enter sound-absorbing sponge 17 when sound wave
When, a part of sound can rub in the hole of sponge and be converted to thermal energy consumption and dissipate, and make to weaken by the sound wave of silencer.
Heat release hole 27, the corresponding position for leading sound muscle 16 and sound-absorbing sponge 17 of heat release hole 27 are provided on the first cover 13a
It is arranged on the conical surface of cone disk type structure.Heat release hole 28 is provided on the second cover 13b, heat release hole 28 is arranged in cone disk type knot
On the center disc of structure.Heat release hole 27 and heat release hole 28 also function to noise elimination while playing the role of heat dissipation.The present embodiment
In, the preferably aperture of heat release hole 27 and heat release hole 28 is small its role is to constitute with 13 internal cavity of motor cover between 1-2mm
Hole spray silencer, aperture is smaller, and the frequency band for accounting for main component can be higher, when center frequency-band is in 8000Hz or more, human ear pair
Noise it is insensitive, so that human ear can also be reduced to the subjective sensation of noise, under conditions of keeping flow equal, this
Sample can replace a macropore with a large amount of apertures, its function can not only reduce A sound level, can also eliminate the impulse noise of spray
Sound.
Roundtrip loss is a part of in the cavity under the action of leading sound muscle 16 for generated sound wave when operating for motor 8,
After absorbing a part by sound-absorbing sponge 17 again, finally spread out of from heat release hole 27 and 17.Following table is using the electricity after the denoising structure
The comparison of machine level of noise and the motor noise value for not using the denoising structure, from table, it is apparent that using the noise reduction knot
After structure, level of noise is substantially reduced, and can about reduce 5-8dB (A).
It is provided at least one in motor cover 13 and fixes bracket 18, wherein a fixation is set on the first cover 13a
Bracket 18, two fixed brackets 18 are arranged on the second cover 13b, and the other end of fixation bracket 18 is fixed by screws in air duct 4
Wind path wall on.Three fixed brackets 18 are fixed on wind path wall in the structure of supported at three point, before not influencing air flowing
It puts, the structural strength of motor cover 13 can be improved.
Each fixed bracket 18 forms frame structure by multiple connecting plates of two side plates and centre, fixed bracket 18
Top is weldingly fixed in motor cover 13, and mounting hole 25 is arranged on the connecting plate of bottommost, is fixed by screw and wind path wall
Connection.
As described above, the plan content in conjunction with given by attached drawing, can derive similar technical solution.But it is all not take off
Content from technical solution of the present invention, according to the technical essence of the invention it is to the above embodiments it is any it is simple modification, etc.
With variation and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of noise reduction structure of motor, it is characterised in that: including a motor cover, motor is mounted on to be surrounded by the motor cover
In cavity, motor shaft is pierced by from the side of the motor cover, several heat release holes are provided in the motor cover, in the chamber
It is provided with the first sound attenuation assembly and/or the second sound attenuation assembly in vivo, described first disappears component and the second sound attenuation assembly in motor
Radially it is arranged around the motor.
2. a kind of noise reduction structure of motor according to claim 1, it is characterised in that: first sound attenuation assembly is by multiple
Mutually stagger setting radially leads sound muscle composition, multiple described to lead sound muscle enclose and be arranged in a ring around motor.
3. a kind of noise reduction structure of motor according to claim 2, it is characterised in that: second sound attenuation assembly is sound-absorbing sea
Silk floss, the sound-absorbing sponge are arranged in a ring around motor.
4. a kind of noise reduction structure of motor according to any one of claims 1 to 3, it is characterised in that: the motor cover is by dividing
The first cover and the second cover of body are mutually fastened to connect and be formed, and are provided on first cover and the second cover
Heat release hole, the motor shaft are pierced by by the center of the second cover.
5. a kind of noise reduction structure of motor according to claim 4, it is characterised in that: first cover and/or the second cover
Body is cone disk type structure.
6. a kind of noise reduction structure of motor according to claim 5, it is characterised in that: the heat release hole on second cover is set
It sets on the center disc of cone disk type structure, the heat release hole on first cover corresponds to first sound attenuation assembly and second and disappears
The setting of sound component.
7. a kind of noise reduction structure of motor according to claim 1, it is characterised in that: be provided at least in the motor cover
One fixed bracket.
8. a kind of fan assembly, including motor and wind wheel component, the wind wheel component are fixedly connected with motor shaft, feature exists
In: installation is just like the described in any item noise reduction structure of motor of claim 1-7 on the motor.
9. fan assembly according to claim 8, it is characterised in that: be additionally provided with and draw in the inlet side of the wind wheel component
Solar or lunar halo.
10. a kind of new blower, it is characterised in that: including main body, air inlet and air outlet are provided on main body, is being entered the wind
Fan assembly as claimed in claim 8 or 9 is installed in air duct between mouth and air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710588407.4A CN109286270A (en) | 2017-07-19 | 2017-07-19 | A kind of noise reduction structure of motor, fan assembly and new blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710588407.4A CN109286270A (en) | 2017-07-19 | 2017-07-19 | A kind of noise reduction structure of motor, fan assembly and new blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109286270A true CN109286270A (en) | 2019-01-29 |
Family
ID=65184669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710588407.4A Pending CN109286270A (en) | 2017-07-19 | 2017-07-19 | A kind of noise reduction structure of motor, fan assembly and new blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109286270A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001420A (en) * | 2021-10-27 | 2022-02-01 | 马祥程 | Low-noise total-heat net-effect fresh air fan |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10191595A (en) * | 1996-12-20 | 1998-07-21 | Calsonic Corp | Vehicle mounted fan |
| US6717299B2 (en) * | 2001-10-30 | 2004-04-06 | Robert Bosch Corporation | Isolation system for a motor |
| CN201623576U (en) * | 2010-02-22 | 2010-11-03 | 莱克电气股份有限公司 | Noise reduction structure for electric motor of dust collector |
| CN201937384U (en) * | 2011-01-19 | 2011-08-17 | 重庆恒通客车有限公司 | Motor sound absorption device of electric motor coach |
| CN203278467U (en) * | 2013-04-26 | 2013-11-06 | 常州商昊机电有限公司 | Split-type motor cover |
| CN203464462U (en) * | 2013-09-10 | 2014-03-05 | 苏州岸肯电子科技有限公司 | Silencer |
| CN203522441U (en) * | 2013-11-05 | 2014-04-02 | 得力集团有限公司 | Motor provided with cooling device |
| CN205957438U (en) * | 2016-07-05 | 2017-02-15 | 中海天悦（天津）科技股份有限公司 | Noise reduction device of fresh air purification system |
-
2017
- 2017-07-19 CN CN201710588407.4A patent/CN109286270A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10191595A (en) * | 1996-12-20 | 1998-07-21 | Calsonic Corp | Vehicle mounted fan |
| US6717299B2 (en) * | 2001-10-30 | 2004-04-06 | Robert Bosch Corporation | Isolation system for a motor |
| CN201623576U (en) * | 2010-02-22 | 2010-11-03 | 莱克电气股份有限公司 | Noise reduction structure for electric motor of dust collector |
| CN201937384U (en) * | 2011-01-19 | 2011-08-17 | 重庆恒通客车有限公司 | Motor sound absorption device of electric motor coach |
| CN203278467U (en) * | 2013-04-26 | 2013-11-06 | 常州商昊机电有限公司 | Split-type motor cover |
| CN203464462U (en) * | 2013-09-10 | 2014-03-05 | 苏州岸肯电子科技有限公司 | Silencer |
| CN203522441U (en) * | 2013-11-05 | 2014-04-02 | 得力集团有限公司 | Motor provided with cooling device |
| CN205957438U (en) * | 2016-07-05 | 2017-02-15 | 中海天悦（天津）科技股份有限公司 | Noise reduction device of fresh air purification system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001420A (en) * | 2021-10-27 | 2022-02-01 | 马祥程 | Low-noise total-heat net-effect fresh air fan |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20190129 |