CN207652204U - A kind of low-noise external rotor electric machine - Google Patents
A kind of low-noise external rotor electric machine Download PDFInfo
- Publication number
- CN207652204U CN207652204U CN201721855190.0U CN201721855190U CN207652204U CN 207652204 U CN207652204 U CN 207652204U CN 201721855190 U CN201721855190 U CN 201721855190U CN 207652204 U CN207652204 U CN 207652204U
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- China
- Prior art keywords
- rotor
- stator core
- accommodating chamber
- electric machine
- low
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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.)
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- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses a kind of low-noise external rotor electric machines,Including body,The side of body is provided with drive end bearing bracket,The inside of drive end bearing bracket is fixed with bolt,The other side of body is provided with rear end cap,The outer surface of rear end cap is connected with power cord,The shaft of internal body is provided through among the outer surface of drive end bearing bracket,The outer surface of rotor is provided with permanent magnet,The outer surface of permanent magnet is provided with stator coil,The outer surface of stator coil is fixed with stator core,The outer surface of stator core is provided with accommodating chamber,Accommodating chamber is internally provided with puigging,The surface of body is provided through the heat emission hole inside accommodating chamber,Accommodating chamber is internally provided with noise reduction sponge,It can be effectively by motor noise-reducing,It is provided with rotor,Rotor outer surface ring row is furnished with multiple permanent magnets,Rotor is flexibly connected with stator core by stator coil,It being capable of fast speed belt turn,The quick rotation of rotor can be such that shaft quickly runs,It improves work efficiency.
Description
Technical field
The utility model is related to motor device technical field, specially a kind of low-noise external rotor electric machine.
Background technology
Traditional motor be stator outside, rotor rotation generate power.External rotor electric machine is structure in contrast, fixed
Son is in the centre of motor, and rotor is outside.Outer rotor blower fan is the advanced configuration for using the direct impeller of external rotor electric machine
With rational pneumatic design, and have the characteristics that efficient, noise is low, light-weight, compact-sized, convenient to install and maintain.
Existing external rotor electric machine, the big heat dissipation effect of sound is bad, and existing external rotor electric machine, often uses inner stator
The working efficiency of outer rotor, motor is slow.
Utility model content
The purpose of this utility model is to provide a kind of low-noise external rotor electric machines, to solve in above-mentioned background technology
It is proposed that the big heat dissipation effect of sound is bad, the slow problem of working efficiency.
To achieve the above object, the utility model provides the following technical solutions：A kind of low-noise external rotor electric machine, packet
Body is included, the side of the body is provided with drive end bearing bracket, and the inside of the drive end bearing bracket is fixed with bolt, the other side of the body
It is provided with rear end cap, the outer surface of the rear end cap is connected with power cord, is provided through among the outer surface of the drive end bearing bracket
The shaft of internal body, is connected with bearing on the inside of the shaft, and the side of the bearing is provided with trim ring, and the one of the trim ring
Side is provided with rotor, and the outer surface of the rotor is provided with permanent magnet, and the outer surface of the permanent magnet is provided with stator coil, institute
The outer surface for stating stator coil is fixed with stator core, and the outer surface of the stator core is provided with accommodating chamber, the accommodating chamber
Be internally provided with puigging, and the heat emission hole having inside accommodating chamber is run through on the surface of the body.
Preferably, the rotor outer surface ring row is furnished with multiple permanent magnets, and the rotor passes through calmly with stator core
Subcoil is flexibly connected.
Preferably, the stator core is formed by the good punching silicon-steel of magnetic conduction, and the stator core and stator line
The close connection of circle.
Preferably, the stator core is in rotor on same central axis, and the circular section product of the stator is big
It is accumulated in the circular section of rotor.
Preferably, there are two the trim ring settings, the diameter of two trim rings is all higher than the diameter of bearing, and the trim ring is solid
Due to the centre of bearing and rotor.
Preferably, the heat emission hole is provided with multiple, is evenly spaced in the outer surface of body, and the heat emission hole through
Accommodating chamber.
Compared with prior art, the utility model has the beneficial effects that：This kind of low-noise external rotor electric machine, accommodating chamber
Be internally provided with noise reduction sponge, rotor can be provided with, rotor outer surface ring row is furnished with multiple effectively by motor noise-reducing
Permanent magnet, rotor are flexibly connected with stator core by stator coil, can fast speed belt turn, the quick rotation of rotor can
So that shaft is quickly run, improve work efficiency, be provided with stator core, stator core by the good punching silicon-steel of magnetic conduction and
At, and stator core is in rotor on same central axis, and the circular section product of stator is accumulated more than the circular section of rotor, is turned
Son is arranged in the inside of stator, and the excellent function mode of previous motor is provided with trim ring, there are two trim ring settings, two pressures
The diameter of circle is all higher than the diameter of bearing, and trim ring is fixed on the centre of bearing and rotor, and trim ring can prevent internal body each
The loosening of component enables the shaft of Bearing inner to be close to rotor, stabilizes the output power of motor, is provided with heat emission hole, dissipates
Hot hole is provided with multiple, is evenly spaced in the outer surface of body, and heat emission hole is through accommodating chamber, can also while noise-reducing
It is enough to distribute the thermal energy of internal body.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is that the utility model body cuts open object structural schematic diagram；
Fig. 3 is the utility model stator rotor planar structure schematic diagram；
Fig. 4 is that the utility model accommodating chamber cuts open object structural schematic diagram.
In figure：1, body, 2, drive end bearing bracket, 3, bolt, 4, shaft, 5, stator coil, 6, rotor, 7, stator core, 8, axis
It holds, 9, noise reduction sponge, 10, heat emission hole, 11, permanent magnet, 12, trim ring, 13, accommodating chamber, 14, rear end cap, 15, power cord.
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 describe, it is clear that the described embodiments are only a part of the embodiments 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 every other embodiment obtained, shall fall within the protection scope of the present invention.
- 4 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of low-noise external rotor electric machine, including
Body 1, drive end bearing bracket 2, bolt 3, shaft 4, stator coil 5, rotor 6, stator core 7, bearing 8, noise reduction sponge 9, heat emission hole 10,
Permanent magnet 11, pressure 12, accommodating chamber 13, rear end cap 14 and power cord 15, the side of body 1 are provided with drive end bearing bracket 2, drive end bearing bracket 2
Inside is fixed with bolt 3, and the other side of body 1 is provided with rear end cap 14, and the outer surface of rear end cap 14 is connected with power cord 15, preceding
The shaft 4 being provided through among the outer surface of end cap 2 inside body 1, the inside of shaft 4 are connected with bearing 8, and the one of bearing 8
Side is provided with trim ring 12, and there are two the settings of trim ring 12, and the diameter of two trim rings 12 is all higher than the diameter of bearing 8, and trim ring 12 is solid
Due to the centre of bearing 8 and rotor 6, trim ring 12 can prevent the loosening of the 1 each component in inside of body, make the shaft 4 inside bearing 8
It can be close to rotor 6, stabilize the output power of motor, the side of trim ring 12 is provided with rotor 6,6 outer surface ring row of rotor
Be furnished with multiple permanent magnets 11, rotor 6 is flexibly connected with stator core 7 by stator coil 5, can fast speed belt turn 6, rotor
6 quick rotation can be such that shaft 4 quickly runs, and improve work efficiency, the outer surface of rotor 6 is provided with permanent magnet 11, forever
The outer surface of magnet 11 is provided with stator coil 5, and the outer surface of stator coil 5 is fixed with stator core 7, and stator core 7 is by leading
The good punching silicon-steel of magnetic forms, and stator core 7 is in rotor 6 on same central axis, and the circular section of stator 7
Product is accumulated more than the circular section of rotor 6, and rotor 6 is arranged in the inside of stator, the excellent function mode of previous motor, stator core
7 outer surface is provided with accommodating chamber 9, and accommodating chamber 9 is internally provided with noise reduction sponge 13, and the surface of body 1 is through there is receiving
Heat emission hole 10 inside chamber 9, heat emission hole 10 are provided with multiple, are evenly spaced in the outer surface of body 1, and heat emission hole 10 through
Accommodating chamber 9 can also distribute the thermal energy inside body 1 while noise-reducing.
Operation principle：Staff is connected into external power supply by power cord 15 first, after connecting external power supply, body 1
Inside be powered, stator core 7 is connected with stator coil 5, the winding method of stator coil 5 can 6 outside of drive rotor forever
Magnet 11 rotates, and then permanent magnet 11 can drive the cycle operation of rotor 6, and the side of rotor 6 is provided with bearing 8, and body 1 is not
Shaft 4 can be followed to rotate, because the centre of rotor 6 is provided through the shaft inside body 1, shaft 4 can follow rotor 6
Cycle operation together, in the case of powering on, the mechanical energy of device output is stablized, and the noise meeting that 1 inside of body generates
Be received chamber 13 noise reduction sponge 9 it is most of offset, and heat emission hole 10 is provided with multiple, is evenly spaced in the outer surface of body 1,
And heat emission hole 10 can exclude the thermal energy inside body 1 external through accommodating chamber 13.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of low-noise external rotor electric machine, including body (1), it is characterised in that：The side of the body (1) is provided with
The inside of drive end bearing bracket (2), the drive end bearing bracket (2) is fixed with bolt (3), and the other side of the body (1) is provided with rear end cap
(14), the outer surface of the rear end cap (14) is connected with power cord (15), is provided with and passes through among the outer surface of the drive end bearing bracket (2)
The internal shaft (4) of body (1) is worn, is connected with bearing (8) on the inside of the shaft (4), the side of the bearing (8) is provided with
The side of trim ring (12), the trim ring (12) is provided with rotor (6), and the outer surface of the rotor (6) is provided with permanent magnet (11),
The outer surface of the permanent magnet (11) is provided with stator coil (5), and the outer surface of the stator coil (5) is fixed with stator core
(7), the outer surface of the stator core (7) is provided with accommodating chamber (9), and the accommodating chamber (9) is internally provided with noise reduction sponge
(13), and the heat emission hole (10) for having accommodating chamber (9) internal is run through on the surface of the body (1).
2. a kind of low-noise external rotor electric machine according to claim 1, it is characterised in that：Rotor (6) appearance
Face ring shape is placed with multiple permanent magnets (11), and the rotor (6) is flexibly connected with stator core (7) by stator coil (5).
3. a kind of low-noise external rotor electric machine according to claim 1, it is characterised in that：The stator core (7)
It is formed by the good punching silicon-steel of magnetic conduction, and the stator core (7) is closely connect with stator coil (5).
4. a kind of low-noise external rotor electric machine according to claim 1, it is characterised in that：The stator core (7)
It is on same central axis with rotor (6), the circular section product of stator (7) is accumulated more than the circular section of rotor (6).
5. a kind of low-noise external rotor electric machine according to claim 1, it is characterised in that：Trim ring (12) setting
There are two, the diameter of two trim rings (12) is all higher than the diameter of bearing (8), and the trim ring (12) is fixed on bearing (8) and turns
The centre of sub (6).
6. a kind of low-noise external rotor electric machine according to claim 1, it is characterised in that：The heat emission hole (10) sets
It is equipped with multiple, is evenly spaced in the outer surface of body (1), and the heat emission hole (10) is through accommodating chamber (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721855190.0U CN207652204U (en) | 2017-12-25 | 2017-12-25 | A kind of low-noise external rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721855190.0U CN207652204U (en) | 2017-12-25 | 2017-12-25 | A kind of low-noise external rotor electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207652204U true CN207652204U (en) | 2018-07-24 |
Family
ID=62876374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721855190.0U Expired - Fee Related CN207652204U (en) | 2017-12-25 | 2017-12-25 | A kind of low-noise external rotor electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207652204U (en) |
-
2017
- 2017-12-25 CN CN201721855190.0U patent/CN207652204U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180724 Termination date: 20211225 |