CN207098838U - External rotor electric machine - Google Patents
External rotor electric machine Download PDFInfo
- Publication number
- CN207098838U CN207098838U CN201720789091.0U CN201720789091U CN207098838U CN 207098838 U CN207098838 U CN 207098838U CN 201720789091 U CN201720789091 U CN 201720789091U CN 207098838 U CN207098838 U CN 207098838U
- Authority
- CN
- China
- Prior art keywords
- casing
- bearing bracket
- rear end
- end cap
- drive end
- 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.)
- Active
Links
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model provides a kind of external rotor electric machine, including casing, drive end bearing bracket and rear end cap；The profile of the drive end bearing bracket is identical with the profile of the rear end cap, and the profile of the drive end bearing bracket is more than or be same as the cross section outline of the casing；The drive end bearing bracket and the rear end cap are located at the both ends of the casing respectively, and the drive end bearing bracket is connected into one end of the casing by multiple screws, the rear end cap is connected to the other end of the casing.The beneficial effects of the utility model are：Drive end bearing bracket, rear end cap are connected to by casing using screw respectively, can solve the problem that long bolt built-in electromagnetic tremble caused by motor oscillating, meanwhile, saved the material cost of screw rod.
Description
Technical field
Machine field is the utility model is related to, particularly a kind of external rotor electric machine.
Background technology
Existing external rotor electric machine, including casing and two end cap, two end cap are located at the both sides of casing respectively, then by a length
Two end cap is fixed screw rod.This external rotor electric machine, in the process of running, it is also easy to produce and trembles.
Utility model content
In order to solve above-mentioned existing technical problem, the utility model is provided a kind of external rotor electric machine, distinguished using screw
Drive end bearing bracket, rear end cap are connected to casing, can solve the problem that long bolt built-in electromagnetic tremble caused by motor oscillating.
The utility model solves above-mentioned existing technical problem, there is provided a kind of external rotor electric machine, including casing, drive end bearing bracket and
Rear end cap；The profile of the drive end bearing bracket is identical with the profile of the rear end cap, and the profile of the drive end bearing bracket is more than or is same as described
The cross section outline of casing；The drive end bearing bracket and the rear end cap are located at the both ends of the casing respectively, will by multiple screws
The drive end bearing bracket is connected to one end of the casing, the rear end cap is connected to the other end of the casing.
The utility model further improves as described below.
The screw number for connecting the drive end bearing bracket and the casing is 3 to 6, rounded array distribution.
The screw number for connecting the rear end cap and the casing is 3 to 6, rounded array distribution.
The screw thread hole site at the casing both ends is consistent.
Surface of the top surface of the screw less than the front end face or the rear end face.
The end face of the casing has outer ring surface and inner ring surface, and the inner ring surface is less than the outer ring surface, and screwed hole is opened
Mouth is located at the outer ring surface；Corresponding, the medial surface of the drive end bearing bracket or the rear end cap has outer land and interior land, described
Interior land is above the outer land；The outer ring surface is docked with the outer land cooperation, the inner ring surface is attached in described
Land.
Compared to prior art, the beneficial effects of the utility model are：Drive end bearing bracket, rear end cap are connected respectively using screw
In casing, can solve the problem that long bolt built-in electromagnetic tremble caused by motor oscillating, meanwhile, saved the material cost of screw rod.
Brief description of the drawings
Fig. 1 is the diagrammatic cross-section of the utility model external rotor electric machine.
The drive end bearing bracket 12 of casing 11
The screw 14 of rear end cap 13
The inner ring surface 16 of outer ring surface 15
Land 18 in outer land 17
Embodiment
Explanation and embodiment further illustrate to the utility model below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of external rotor electric machine, including casing 11, drive end bearing bracket 12 and rear end cap 13, the external rotor electric machine exist
During operation, casing 11, drive end bearing bracket 12 and rear end cap 13 need to rotate at a high speed.The utility model is using the profile of drive end bearing bracket 12 with after
The profile of end cap 13 is identical, and the profile of drive end bearing bracket 12 is more than or be same as the cross section outline of casing 11, i.e. the wheel of drive end bearing bracket 12
Exterior feature is slightly larger than the cross section outline of casing 11, or, the profile of drive end bearing bracket 12, the profile of rear end cap 13 and casing 11 it is transversal
Face outline is identical；The body-sensing of profile one of so motor is very strong.Drive end bearing bracket 12 and rear end cap 13 are located at the both ends of casing 11 respectively,
Drive end bearing bracket 12 is connected to one end of casing 11 by multiple screws 14, rear end cap 13 is connected to the other end of casing 11, is passed through
Experiment is found, drive end bearing bracket 12, rear end cap 13 are connected into casing 11 respectively using screw 14, can solve the problem that long bolt built-in electromagnetic
Motor oscillating caused by trembling, meanwhile, save the material cost of screw rod.
Specifically, the quantity of screw 14 of connection drive end bearing bracket 12 and casing 11 is 3 to 6, rounded array distribution.After connection
The quantity of screw 14 of end cap 13 and casing 11 is also 3 to 6, rounded array distribution.The screw thread hole site phase at the both ends of casing 11
Unanimously.So, the angle of adjacent two screw 14 is 120 degree, 90 degree, 72 degree or 60 degree, ensures the firm of connection, meanwhile, warp
Motor oscillating caused by experimental verification is trembled in the absence of long bolt built-in electromagnetic.
The top surface of the utility model screw 14 further improves casing less than the surface of front end face 12 or rear end face 13
11st, a body-sensing of drive end bearing bracket 12 and rear end cap 13.
Another structure of implementing of the utility model is that the end face of casing 11 is arranged into outer ring surface 15 and inner ring surface 16, inner ring
Face 16 is less than outer ring surface 15, and the opening of screwed hole is located at outer ring surface 15；It is corresponding, by drive end bearing bracket 12 or the medial surface of rear end cap 13
It is arranged to outer land 17 and interior land 18, interior land 18 is above outer land 17；Outer ring surface 15 coordinates with outer land 17 to be docked, is interior
Anchor ring 16 is attached at interior land 18.Wherein, the width of inner ring surface 16 be 3 to 5mm, it is vertical with outer ring surface 15 apart 0.05 to
0.3mm, inner ring surface 16 coordinates with interior land 18, outer ring surface 15 coordinates with outer land 17, ensures the concentricity of casing 11.Using this
Structure, a body-sensing of casing 11, drive end bearing bracket 12 and rear end cap 13 is strong, meanwhile, the screw 14 can use common material, also will not
The magnetic circuit inside external rotor electric machine is influenceed, is easy to control cost.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (6)
1. a kind of external rotor electric machine, including casing, drive end bearing bracket and rear end cap；It is characterized in that：
The profile of the drive end bearing bracket is identical with the profile of the rear end cap, and the profile of the drive end bearing bracket is more than or be same as the casing
Cross section outline；
The drive end bearing bracket and the rear end cap are located at the both ends of the casing respectively, are connected to the drive end bearing bracket by multiple screws
One end of the casing, the other end that the rear end cap is connected to the casing.
2. external rotor electric machine according to claim 1, it is characterised in that：Connect the screw of the drive end bearing bracket and the casing
Quantity is 3 to 6, rounded array distribution.
3. external rotor electric machine according to claim 2, it is characterised in that：Connect the screw of the rear end cap and the casing
Quantity is 3 to 6, rounded array distribution.
4. external rotor electric machine according to claim 1, it is characterised in that：The screw thread hole site phase one at the casing both ends
Cause.
5. external rotor electric machine according to claim 1, it is characterised in that：The top surface of the screw less than the front end face or
The surface of the rear end face.
6. external rotor electric machine according to claim 5, it is characterised in that：The end face of the casing has outer ring surface and inner ring
Face, the inner ring surface are less than the outer ring surface, and the opening of screwed hole is located at the outer ring surface；It is corresponding, the drive end bearing bracket or institute
Stating the medial surface of rear end cap has outer land and interior land, and the interior land is above the outer land；The outer ring surface and institute
Stating outer land coordinates docking, the inner ring surface to be attached at the interior land.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720789091.0U CN207098838U (en) | 2017-06-30 | 2017-06-30 | External rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720789091.0U CN207098838U (en) | 2017-06-30 | 2017-06-30 | External rotor electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207098838U true CN207098838U (en) | 2018-03-13 |
Family
ID=61555174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720789091.0U Active CN207098838U (en) | 2017-06-30 | 2017-06-30 | External rotor electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207098838U (en) |
-
2017
- 2017-06-30 CN CN201720789091.0U patent/CN207098838U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207098838U (en) | External rotor electric machine | |
| CN204416362U (en) | Twin screw stirs transport plane | |
| CN204492424U (en) | A kind of hinge of adjustable refrigerator door height | |
| CN207559325U (en) | A kind of low-voltage distribution cabinet convenient for safeguarding | |
| CN205998756U (en) | Depend on the hand steered Di Nima rope retracting device twisting mill | |
| CN206606424U (en) | A kind of Bounce Out Blitz packaging facilities | |
| CN204561780U (en) | Juice extractor and screw rod of squeezing the juice thereof | |
| CN207630580U (en) | A kind of material for screw oil expeller feeder puts attachment device | |
| CN204540654U (en) | Steam jet | |
| CN203278438U (en) | A replaceable motor rotor | |
| CN208478966U (en) | A kind of novel low voltage power distribution cabinet | |
| CN206246336U (en) | The interchangeable swash plate of ball-and-socket | |
| CN202867586U (en) | Bracket for rotating shaft | |
| CN204471827U (en) | Bulk plastic extruder drive unit | |
| CN206723730U (en) | A kind of sensor attachment mechanism | |
| CN204328411U (en) | A kind of intelligent elevated television support device for domestic life | |
| CN209550491U (en) | A kind of screw production thread rolling machine fast blanking mechanism | |
| CN207852718U (en) | A kind of full-automatic LED chip is spin-dried for rotor | |
| CN204724302U (en) | A kind of coal pulverizer conveying device flexibly connected | |
| CN209125441U (en) | A kind of rocking bar splined shaft processing tool | |
| CN202626546U (en) | Swing mechanism | |
| CN206287516U (en) | A kind of extrusion device of 3D printer | |
| CN209223944U (en) | A kind of self-locking nut device for fastening | |
| CN201714784U (en) | Decagonal plum-blossom screw bolt device | |
| CN207346442U (en) | A kind of block-resistant type feed discharge bucket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |