CN207638496U - Noise reduction motor - Google Patents
Noise reduction motor Download PDFInfo
- Publication number
- CN207638496U CN207638496U CN201721788480.8U CN201721788480U CN207638496U CN 207638496 U CN207638496 U CN 207638496U CN 201721788480 U CN201721788480 U CN 201721788480U CN 207638496 U CN207638496 U CN 207638496U
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- CN
- China
- Prior art keywords
- hole
- noise reduction
- shell
- reduction motor
- fan
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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.)
- Expired - Fee Related
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- Motor Or Generator Frames (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a kind of noise reduction motor effectively to reduce the eddy current effect of fan blade outer end.The noise reduction motor includes shell,The protecgulum and rear cover and the fan in the receiving space of receiving space are enclosed with the shell,The shell includes inner surface and outer surface,The appearance is formed with multiple stepped holes towards inner surface direction recess,The stepped hole is divided into the first hole portion and the second hole portion relative to first hole portion closer to the receiving space by the step surface of the stepped hole,The cover board that air guide channel is cooperatively formed with second hole portion is installed on each step surface,Sound-absorbing structure is equipped in the air guide channel,The bottom of second hole portion, which is run through to be equipped with, is located at the first through hole of the fan in the radial direction,The one end of the cover board far from the first through hole, which is run through, is equipped with the second through-hole,The radial air flow that the fan generates can pass sequentially through the first through hole,The air guide channel and second through-hole enter the external world.
Description
Technical field
The utility model is related to motor device fields, specifically, being related to a kind of noise reduction motor.
Background technology
Motor generally includes to have the rotor of shaft, bearing, stator winding and accommodates rotor, bearing and stator winding
Shell, shell include shell and protecgulum and rear cover set on its both ends, and bearing holder (housing, cover) is set in shaft and is installed on protecgulum.In electricity
During machine operates, since the wire resistor in stator winding, running at high speed for bearing would generally generate largely inside the shell
Heat, with the continuous accumulation of heat, entire motor will overheat, this imitates the electromagnetic conversion for influencing winding coil itself
Can, it could even be possible to influencing the operating of bearing.
In order to reduce heat accumulation to the greatest extent, motor in the prior art is usually equipped with radiator fan in one end of its shaft,
And radiator fan is located in shell, the blade of radiator fan direction is arranged to when being rotated with shaft, and surrounding air is from outside
It is inhaled into motor housing or hot-air is discharged out of shell (generally by the mode reality for covering trepanning after
Gas circulation inside and outside existing shell).However, when being rotated due to fan blade, can cut air can cause unavoidable radial direction
Air-flow, this radial air flow because with shell collision can caused by the outer end of each blade will cause to be vortexed, thus generate unpleasant
Noise in addition blade with vortex generate covibration and cause blade to break down.
Therefore, it is necessary to further be developed to motor in the prior art, to avoid drawbacks described above.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of noise reduction motor, which can effectively drop
The eddy current effect of low fan blade outer end.
The utility model provides a kind of noise reduction motor, including shell, be respectively arranged on the shell both ends and with the shell
It is enclosed the protecgulum and rear cover and the fan in the receiving space of receiving space, the shell includes described in
The inner surface of receiving space and the outer surface being oppositely arranged with the inner surface, the appearance are recessed towards the inner surface direction
It is formed with multiple spaced stepped holes of the radial direction along the shell, axial direction of the stepped hole along the shell
Extend, the step surface of the stepped hole by the stepped hole be divided into the first hole portion and relative to first hole portion closer to
Second hole portion of the receiving space is installed on each step surface and cooperatively forms air guide channel with second hole portion
Cover board, the air guide channel is interior to be equipped with sound-absorbing structure, and the bottom of second hole portion, which is run through to be equipped with, is located at the fan radial direction side
Upward first through hole, the one end of the cover board far from the first through hole, which is run through, is equipped with the second through-hole, what the fan generated
Radial air flow can pass sequentially through the first through hole, the air guide channel and second through-hole and enter the external world.
In a kind of preferred embodiment of noise reduction motor provided by the utility model, the first through hole include be located at its two
First opening and the second opening at end, first opening is relative to second opening closer to the receiving space.
In a kind of preferred embodiment of noise reduction motor provided by the utility model, the size of the first through hole is described in
First is open is gradually reduced to the direction of second opening.
In a kind of preferred embodiment of noise reduction motor provided by the utility model, the first through hole is along the shell
Section in the radial direction is tapered.
In a kind of preferred embodiment of noise reduction motor provided by the utility model, the step surface is equipped with seal groove,
Sealing element is equipped in the seal groove, the cover board is sealed with the step surface by the sealing element.
In a kind of preferred embodiment of noise reduction motor provided by the utility model, multiple stepped holes equidistantly divide
Cloth.
In a kind of preferred embodiment of noise reduction motor provided by the utility model, the sound-absorbing structure is full of the air guide
Channel.
In a kind of preferred embodiment of noise reduction motor provided by the utility model, on the axial direction of the shell,
The first through hole size is more than the size of the fan.
In a kind of preferred embodiment of noise reduction motor provided by the utility model, second through-hole is on the housing
Orthographic projection be located in the range of second hole portion.
In a kind of preferred embodiment of noise reduction motor provided by the utility model, the first through hole and described second is led to
Spacing of the hole on the axial direction of the shell is 15-35cm.
The advantageous effect of noise reduction motor provided by the utility model is：Pass through the first through hole, the air guide channel
And the radial air flow that the fan generates is oriented to the external world and is imitated with the vortex for effectively reducing fan blade outer end by second through-hole
It answers；Simultaneously as the sound absorption of the sound-absorbing structure in the air guide channel, can effectively absorb radial air flow stream
The noise generated when dynamic.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Other attached drawings are obtained, wherein：
Fig. 1 is the sectional view of axis direction of the noise reduction motor provided by the utility model along shell；
Fig. 2 is the part-structure figure of noise reduction motor shown in Fig. 1；
Fig. 3 is the sectional view of radial direction of the noise reduction motor provided by the utility model along shell；
Fig. 4 is the enlarged drawing of part A in noise reduction motor shown in Fig. 3.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The all other embodiment obtained, shall fall within the protection scope of the present invention.
It is to be appreciated that the description for being such as related to " first ", " second " in the present invention is used for description purposes only, without
It can be interpreted as indicating or implying its relative importance or implicitly indicate the quantity of indicated technical characteristic.It defines as a result,
The feature of " first ", " second " can explicitly or implicitly include at least one of the features.In the description of the present invention,
The meaning of " plurality " is at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " may be a fixed connection, may be a detachable connection, or integral；It can be mechanical connection, also may be used
To be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary the connection inside two elements
Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
In addition, the technical solution between each embodiment of the utility model can be combined with each other, but must be with ability
Domain those of ordinary skill can be implemented as basis, will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of this technical solution is not present, also not within the protection domain of the requires of the utility model.
Please refer to Fig. 1 to Fig. 4, wherein Fig. 1 is axis direction of the noise reduction motor provided by the utility model along shell
Sectional view；Fig. 2 is the part-structure figure of noise reduction motor shown in Fig. 1；Fig. 3 is noise reduction motor provided by the utility model along shell
Radial direction sectional view；Fig. 4 is the enlarged drawing of part A in noise reduction motor shown in Fig. 3.The noise reduction motor 100 includes shell
Body 1 is respectively arranged on 1 both ends of the shell and is enclosed the protecgulum 2 of receiving space 100A with the shell 1 and rear cover 3, is set to
Fan 4 in the receiving space 100A and shaft 5, the shaft 5 pass through the protecgulum 3 to be partially housed in the receiving
In the 100A of space, the fan 4 is fixed in the shaft 5 and can be rotated with the shaft 5.In the present embodiment, after described
Pore structure (not shown) is offered on lid 3, the receiving space 100A realizes gas circulation with extraneous by the pore structure；Institute
It states fan 4 to be configured to, when the fan 4 is rotated with the shaft 5, extraneous surrounding air is inhaled into described from outside
In receiving space 100A.Certainly, in other embodiments, realize the mode of the receiving space 100A and ambient atmos circulation with
And the set-up mode of the fan 4 is not limited thereto.
The shell 1 includes being oppositely arranged towards the inner surface 11 of the receiving space 100A and with the inner surface 11
Outer surface 13, the outer surface 13 are formed with multiple between the radial direction of the shell 1 to 11 direction of inner surface recess
Every the stepped hole 6 of setting, the stepped hole 6 extends along the axial direction 100B of the shell 1, the step surface of the stepped hole 6
The stepped hole 6 is divided into the first hole portion 61 and relative to first hole portion 61 closer to the receiving space 100A by 60
The second hole portion 63, be installed with the cover board 7 that air guide channel is cooperatively formed with second hole portion 63 on each step surface 60,
Sound-absorbing structure 8 is equipped in the air guide channel, the sound-absorbing structure 8 is made of sound-absorbing material, the bottom of second hole portion 63
Through equipped with the first through hole 65 positioned at the fan 4 in the radial direction, the one end of the cover board 7 far from the first through hole 65
Through equipped with the second through-hole 71, the radial air flow that the fan 4 generates can pass sequentially through the first through hole 65, the air guide is led to
Road and second through-hole 71 enter extraneous.Since the first through hole 65, the air guide channel and second through-hole 71 can
It is oriented to the external world with the radial air flow for generating the fan 4, so as to effectively reduce the eddy current effect of fan blade outer end；Together
When, due to the sound absorption of the sound-absorbing structure 8 in the air guide channel, when can effectively absorb radial air flow flowing
The noise of generation.
The first through hole 65 includes positioned at first opening 651 at its both ends and the second opening 653, first opening
651 are open 653 closer to the receiving space 100A relative to described second.As one embodiment of the utility model,
The size of the first through hole 65 is gradually reduced from first opening 651 to the direction of second opening 653.It is further excellent
Selection of land, the first through hole 65 are tapered along the section in the radial direction of the shell 1.
As one embodiment of the utility model, the step surface 60 is equipped with seal groove 601, the seal groove 601
Interior to be equipped with sealing element 603, the sealing element 603 is sealing ring or gasket, and the cover board 7 passes through described with the step surface 60
Sealing element 603 seals.In the present embodiment, the cover board 7 is detachably connected with the step surface 60, and tie point is positioned at described
Outside the outer profile range of seal groove 601.
As one embodiment of the utility model, multiple 6 equidistantly distributeds of the stepped hole.
As one embodiment of the utility model, the sound-absorbing structure 8 is full of the air guide channel.
As one embodiment of the utility model, on the axial direction 100B of the shell 1, the first through hole 65
Size is more than the size of the fan 4.
As one embodiment of the utility model, orthographic projection of second through-hole 71 on the shell 1 is located at institute
In the range of stating the second hole portion 63.
The spacing of the first through hole 65 and second through-hole 71 on the axial direction of the shell 1 is too small to be unfavorable for
The absorption of noise, the too big resistance that can be improved again when radial air flow is oriented to extraneous, to be unfavorable for reducing fan blade outer end
Eddy current effect.As one embodiment of the utility model, the first through hole 65 and second through-hole 71 are in the shell 1
Axial direction on spacing be 15-35cm.
Noise reduction motor 100 provided by the utility model has the advantages that：By the first through hole 65, described lead
The radial air flow that the fan 4 generates is oriented to the external world effectively to reduce fan blade outer end by gas channel and second through-hole 71
Eddy current effect；Simultaneously as the sound absorption of the sound-absorbing structure 8 in the air guide channel, can effectively absorb
The noise that radial air flow generates when flowing.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other relevant technical fields, are equally included in the patent within the scope of the utility model.
Claims (10)
1. a kind of noise reduction motor, including shell, it is respectively arranged on the shell both ends and is enclosed receiving space with the shell
Protecgulum and rear cover and the fan in the receiving space, which is characterized in that the shell includes towards the receiving
The inner surface in space and the outer surface being oppositely arranged with the inner surface, the appearance are recessed to be formed towards the inner surface direction
There are multiple spaced stepped holes of the radial direction along the shell, the stepped hole to prolong along the axial direction of the shell
It stretches, the stepped hole is divided into the first hole portion and relative to first hole portion closer to institute by the step surface of the stepped hole
The second hole portion of receiving space is stated, the lid for cooperatively forming air guide channel with second hole portion is installed on each step surface
Plate, the air guide channel is interior to be equipped with sound-absorbing structure, and the bottom of second hole portion, which is run through to be equipped with, is located at the fan radial direction
On first through hole, the one end of the cover board far from the first through hole, which is run through, is equipped with the second through-hole, the diameter that the fan generates
The first through hole, the air guide channel and second through-hole, which can be passed sequentially through, to air-flow enters the external world.
2. noise reduction motor according to claim 1, which is characterized in that the first through hole includes positioned at the first of its both ends
Opening and the second opening, first opening is relative to second opening closer to the receiving space.
3. noise reduction motor according to claim 2, which is characterized in that the size of the first through hole is open from described first
It is gradually reduced to the direction of second opening.
4. noise reduction motor according to claim 3, which is characterized in that radial direction of the first through hole along the shell
On section it is tapered.
5. noise reduction motor according to claim 1, which is characterized in that the step surface is equipped with seal groove, the sealing
Sealing element is equipped in slot, the cover board is sealed with the step surface by the sealing element.
6. noise reduction motor according to claim 1, which is characterized in that multiple stepped hole equidistantly distributeds.
7. noise reduction motor according to claim 1, which is characterized in that the sound-absorbing structure is full of the air guide channel.
8. noise reduction motor according to claim 1, which is characterized in that on the axial direction of the shell, described first
Clear size of opening is more than the size of the fan.
9. noise reduction motor according to claim 1, which is characterized in that the orthographic projection of second through-hole on the housing
In the range of second hole portion.
10. the noise reduction motor according to claim 1 or 9, which is characterized in that the first through hole and second through-hole exist
Spacing on the axial direction of the shell is 15-35cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721788480.8U CN207638496U (en) | 2017-12-19 | 2017-12-19 | Noise reduction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721788480.8U CN207638496U (en) | 2017-12-19 | 2017-12-19 | Noise reduction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207638496U true CN207638496U (en) | 2018-07-20 |
Family
ID=62853220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721788480.8U Expired - Fee Related CN207638496U (en) | 2017-12-19 | 2017-12-19 | Noise reduction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207638496U (en) |
-
2017
- 2017-12-19 CN CN201721788480.8U patent/CN207638496U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180720 Termination date: 20211219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |