CN202273884U - Outer rotor axial flow fan with labyrinth waterproof structure - Google Patents
Outer rotor axial flow fan with labyrinth waterproof structure Download PDFInfo
- Publication number
- CN202273884U CN202273884U CN2011203339917U CN201120333991U CN202273884U CN 202273884 U CN202273884 U CN 202273884U CN 2011203339917 U CN2011203339917 U CN 2011203339917U CN 201120333991 U CN201120333991 U CN 201120333991U CN 202273884 U CN202273884 U CN 202273884U
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- Prior art keywords
- edge
- rotor
- flow fan
- wall
- groove
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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)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses an outer rotor axial flow fan with a labyrinth waterproof structure. The outer rotor axial flow fan comprises an end cover, a rotor, a stator and a rotating shaft, wherein a concave wall is arranged on the edge of the end cover, and an inner edge is longer than an outer edge; a convex wall which is in clearance fit with the concave wall is arranged on the edge of the rotor; a circle of groove is formed on the inner side of the convex wall; and the inner edge of the concave wall extends into the groove. The outer rotor axial flow fan has the advantages that a concave structure is designed on the edge of the end cover of a fan motor, and the inner edge is longer; a bulge is formed on the edge of the rotor of the fan motor; a circle of groove is formed on the edge of a convex bulged wall; the concentricity of the stator and the motor of the motor reaches 0.003 millimeter by a process during production, and special grease is coated on a rotor groove, so that the stator and the rotor is matched in a concave-convex mode during rotation of the fan to prevent water from immersing into the fan.
Description
Technical field
The utility model relates to a kind of outer rotor shaft flow fan, more specifically says, it relates to a kind of outer rotor shaft flow fan with labyrinth waterproof construction.
Background technique
The outer rotor blower fan rotor of existing technology and the cooperation place of stator be general to exist a slit, is prone to cause water to get in the middle of the blower fan rotor and accumulates, and causes motor to break down even short circuit.
Summary of the invention
The purpose of the utility model is to overcome deficiency of the prior art, and a kind of blower fan water inlet that effectively prevents is provided, and is rational in infrastructure, the outer rotor shaft flow fan with labyrinth waterproof construction of stable performance.
The purpose of the utility model realizes through following technological scheme.This outer rotor shaft flow fan with labyrinth waterproof construction; Comprise end cap, rotor, stator, rotating shaft; The edge of said end cap is provided with concave wall, and interior edge is long than the outer, and the rotor edge is provided with and the concave wall protrusion wall of Spielpassung mutually; Said protrusion wall inboard is provided with a circle groove, and said groove is stretched on the interior edge of said concave wall.
As preferably: have the end cap headrace on the interior edge of said concave wall.
As preferably: the interior edge of said concave wall is stretched in the clearance space of said groove and is filled with seal grease.
As preferably: said rotor one end is provided with the rotor weep hole.
The beneficial effect of the utility model is: the end cap edge design of fan motor is concave structure; And interior edge is longer, and fan motor rotor edge is designed to protrusion, has a circle groove on the outstanding wall limit of convex; Guarantee the electric machine rotor concentricity is reached all to 0.003mm through technology during production; And coat special oil in the rotor recesses top, blower fan rotates concavo-convex cooperation, can prevent that water from immersing.
Description of drawings
Fig. 1 is the utility model master TV structure schematic representation;
Fig. 2 is the A portion structure for amplifying schematic representation of Fig. 1;
Reference character: end cap 1; End cap headrace 2; Seal grease 3; Rotor 4; Stator 5; Rotating shaft 6; Rotor weep hole 7.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done and to be further described.Though the utility model will combine preferred embodiment to describe, and should know, do not represent that the utility model is limited among the said embodiment.On the contrary, the utility model will be contained interior alternative, modified model and the equivalent of scope of the utility model that can be included in attached claims qualification.
Extremely shown in Figure 2 referring to Fig. 1; This outer rotor shaft flow fan with labyrinth waterproof construction comprises end cap 1, rotor 4, stator 5, rotating shaft 6, and the edge of said end cap 1 is provided with concave wall; Interior along long than the outer, have end cap headrace 2 on the interior edge of said concave wall.Rotor 4 edges are provided with and the concave wall protrusion wall of Spielpassung mutually, and said protrusion wall inboard is provided with a circle groove, and said groove is stretched on the interior edge of said concave wall.Said interior along being filled with seal grease 3 in the clearance space that stretches into said groove.Said rotor 4 one ends are provided with rotor weep hole 7.
The end cap edge design of fan motor is concave structure; And interior edge is longer, and fan motor rotor edge is designed to protrusion, has a circle groove on the outstanding wall limit of convex; Guarantee the electric machine rotor concentricity is reached all to 0.003mm through technology during production; And coat special oil in the rotor recesses top, blower fan rotates concavo-convex cooperation, can prevent that water from immersing.
Claims (4)
1. outer rotor shaft flow fan with labyrinth waterproof construction; Comprise end cap (1), rotor (4), stator (5), rotating shaft (6); It is characterized in that: the edge of said end cap (1) is provided with concave wall, and interior edge is long than the outer, and rotor (4) edge is provided with and the concave wall protrusion wall of Spielpassung mutually; Said protrusion wall inboard is provided with a circle groove, and said groove is stretched on the interior edge of said concave wall.
2. the outer rotor shaft flow fan with labyrinth waterproof construction according to claim 1 is characterized in that: have end cap headrace (2) on the interior edge of said concave wall.
3. the outer rotor shaft flow fan with labyrinth waterproof construction according to claim 1 is characterized in that: the interior edge of said concave wall is stretched in the clearance space of said groove and is filled with seal grease (3).
4. the outer rotor shaft flow fan with labyrinth waterproof construction according to claim 1 is characterized in that: said rotor (4) one ends are provided with rotor weep hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203339917U CN202273884U (en) | 2011-09-07 | 2011-09-07 | Outer rotor axial flow fan with labyrinth waterproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203339917U CN202273884U (en) | 2011-09-07 | 2011-09-07 | Outer rotor axial flow fan with labyrinth waterproof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273884U true CN202273884U (en) | 2012-06-13 |
Family
ID=46194245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203339917U Expired - Fee Related CN202273884U (en) | 2011-09-07 | 2011-09-07 | Outer rotor axial flow fan with labyrinth waterproof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273884U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165148A (en) * | 2014-06-16 | 2014-11-26 | 杭州赛微电机有限公司 | Outer rotor fan with adjustable air speed |
| CN109185198A (en) * | 2018-11-06 | 2019-01-11 | 杭州雪尔电器有限公司 | A kind of protection type external rotor axial-flow fan |
-
2011
- 2011-09-07 CN CN2011203339917U patent/CN202273884U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165148A (en) * | 2014-06-16 | 2014-11-26 | 杭州赛微电机有限公司 | Outer rotor fan with adjustable air speed |
| CN104165148B (en) * | 2014-06-16 | 2017-11-07 | 杭州赛微电机有限公司 | Outer rotor is adjustable wind speed blower fan |
| CN109185198A (en) * | 2018-11-06 | 2019-01-11 | 杭州雪尔电器有限公司 | A kind of protection type external rotor axial-flow fan |
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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 |
Granted publication date: 20120613 Termination date: 20170907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |