CN207393564U - A kind of tail structure of electric fan - Google Patents
A kind of tail structure of electric fan Download PDFInfo
- Publication number
- CN207393564U CN207393564U CN201721473840.5U CN201721473840U CN207393564U CN 207393564 U CN207393564 U CN 207393564U CN 201721473840 U CN201721473840 U CN 201721473840U CN 207393564 U CN207393564 U CN 207393564U
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- face
- broken wind
- wing tip
- wind face
- electric fan
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Abstract
The utility model discloses a kind of tail structures of electric fan, including wing body and the fixed part and wing tip that are separately positioned on its both sides, wing body is included positioned at the upper broken wind face of upper end and guide face, positioned at the lower broken wind face of lower end and rectification face, the front end in upper broken wind face is connected with the front end in lower broken wind face, and feature is that guide face is located at the one side of the wing tip and upwardly extends and be provided with balanced surface；Advantage is that guide face is located at the one side of wing tip and upwardly extends and be provided with balanced surface, cut overdraught a portion flows away along balanced surface, windage can form a downward component and fan blade end is prevented to float, and prevent the harmful effects such as fan is unbalance, air-flow disperses, fan abnormal sound, flabellum deform, the deformation of flabellum connection strap even fractures.
Description
Technical field
The utility model is related to a kind of tail structures of electric fan.
Background technology
Industrial fan is widely used in industrial premises, logistic storage, waiting room, exhibition center, the superfine large space of business, as
Space ventilator, the instrument of personnel's cooling, the outer end of the flabellum of existing many Industrial fans can all set empennage, such as Fig. 1-2 institutes
Show, fixed part 11, broken wind portion 12, diversion division 13, rectification part 14 and wing tip 15, the fixed part 11 that empennage includes integrally connected are used for
Empennage is connected fixation with flabellum, and broken wind face 12 is located at empennage leading edge, and when flabellum rotates, air-flow is cut into two up and down by this face
Point, cut overdraught part flows away along guide face 13, and cut lower part airflow is formed down wind by rectification face 14,
End air-flow flows away along wing tip 15, but this kind of structure can cause flabellum to float, and flabellum floating can cause that fan is unbalance, air-flow point
The harmful effects such as scattered, fan abnormal sound, flabellum deform, the deformation of flabellum connection strap even fractures.
The content of the invention
The technical problem to be solved by the utility model is to provide a kind of more stable electric fans of flabellum during use
Tail structure.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of tail structure of electric fan,
Including wing body and the fixed part and wing tip that are separately positioned on its both sides, the wing body includes positioned at the upper broken wind face of upper end and leads
Stream interface, positioned at the lower broken wind face of lower end and rectification face, the front end phase of the front end in the upper broken wind face and the lower broken wind face
Connection, the one side that the guide face is located at the wing tip upwardly extend and are provided with balanced surface.
The further preferred scheme of the utility model is：The level that the wing tip is located at one end of the balanced surface is high
Degree is located at the level height of the one end in the upper broken wind face higher than the wing tip.
The further preferred scheme of the utility model is：The end of the front end in the broken wind face and the balanced surface it
Between inclination angle between the straight line and horizontal plane that are formed be 10 °~20 °.
The further preferred scheme of the utility model is：The end in the front end in the broken wind face and the rectification face it
Between inclination angle between the straight line and horizontal plane that are formed be 10 °~20 °.
The further preferred scheme of the utility model is：The angle formed between the fixed part and the guide face
For 165 °~175 °.
Compared with prior art, the one side that wing tip is located at the utility model has the advantage of guide face upwardly extends and is provided with
Balanced surface, cut overdraught a portion flow away along balanced surface, and windage can form a downward component and prevent flabellum end
End is floated, and prevents that fan is unbalance, air-flow disperses, the deformation of fan abnormal sound, flabellum, the deformation of flabellum connection strap or even fractures etc. no
Good influence.
Description of the drawings
Fig. 1 is existing tail on structure diagram；
Fig. 2 is existing tail on left view；
Fig. 3 is the structure diagram of the utility model；
Fig. 4 is the front view of the utility model；
Fig. 5 is the left view of the utility model；
Fig. 6 is the right view of the utility model；
Fig. 7 is assembling schematic diagram of the utility model on flabellum；
In figure：F：The resistance that air forms flabellum and empennage when fan rotates；Fx：Windage component in the horizontal direction；
Fy：Windage is in the upward component of vertical direction；F`：The resistance that air forms flabellum and empennage when fan rotates；F`x：Windage
Component in the horizontal direction；F`y：Windage is in the downward component of vertical direction.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing embodiment.
As shown in fig. 3 to 7, embodiment one：A kind of tail structure of electric fan, including wing body 2 and be separately positioned on its two
The fixed part 3 of side and wing tip 4, wing body 2 are included positioned at the upper broken wind face 21 of upper end and guide face 22, positioned at the lower broken wind face of lower end
23 and rectification face 24, the front end in upper broken wind face 21 be connected with the front end in lower broken wind face 23, guide face 22 is located at the one side of wing tip 4
It upwardly extends and is provided with balanced surface 5, the level height that wing tip 4 is located at one end (1-1) of balanced surface 5 is located at upper break higher than wing tip 4
The level height of the one end (1-2) in wind face 21, the straight line and water formed between the front end in upper broken wind face 21 and the end of balanced surface 5
Inclination angle between plane is 16 °, the straight line formed between the front end in lower broken wind face 23 and the end in rectification face 24 and horizontal plane it
Between inclination angle for 17 °, the angle formed between fixed part 3 and guide face 22 is 171 °.
Embodiment two：Other structures are identical with embodiment one, the difference is that：The front end in upper broken wind face 23 and balance
Inclination angle between the straight line and horizontal plane that are formed between the end in face 5 is 10 °, the front end in lower broken wind face 23 and the end in rectification face 24
Inclination angle between the straight line and horizontal plane that are formed between end is 20 °, and the angle formed between fixed part 3 and guide face 22 is
165°。
Embodiment three：Other structures are identical with embodiment one, the difference is that：The front end in upper broken wind face 23 and balance
Inclination angle between the straight line and horizontal plane that are formed between the end in face 5 is 20 °, the front end in lower broken wind face 23 and the end in rectification face 24
Inclination angle between the straight line and horizontal plane that are formed between end is 10 °, and the angle formed between fixed part 3 and guide face 22 is
175°。
It can be according to the size and demand of actual fan to suitably being changed with upper angle.
A kind of tail structure of electric fan provided by the utility model is described in detail above, herein should
The principle and embodiment of the utility model is set forth with specific case, the explanation of above example is only intended to sides
Assistant solves the utility model and core concept.It should be pointed out that it for those skilled in the art, is not departing from
On the premise of the utility model principle, can also to the utility model, some improvement and modification can also be carried out, these improvement and modification
It falls into the protection domain of the utility model claims.
Claims (5)
1. a kind of tail structure of electric fan, described including wing body and the fixed part and wing tip that are separately positioned on its both sides
Wing body is included positioned at the upper broken wind face of upper end and guide face, positioned at the lower broken wind face of lower end and rectification face, the upper broken wind face
Front end be connected with the front end in the lower broken wind face, it is characterised in that：The guide face is located at the one of the wing tip
Lateral upper be extended has balanced surface.
2. a kind of tail structure of electric fan according to claim 1, it is characterised in that：The wing tip is located at described
Balanced surface one end level height higher than the wing tip be located at the upper broken wind face one end level height.
3. a kind of tail structure of electric fan according to claim 1, it is characterised in that：Before the upper broken wind face
Inclination angle between the straight line and horizontal plane that are formed between end and the end of the balanced surface is 10 °~20 °.
4. a kind of tail structure of electric fan according to claim 1, it is characterised in that：Before the lower broken wind face
Inclination angle between the straight line and horizontal plane that are formed between end and the end in the rectification face is 10 °~20 °.
5. a kind of tail structure of electric fan according to claim 1, it is characterised in that：The fixed part with it is described
Guide face between the angle that is formed be 165 °~175 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721473840.5U CN207393564U (en) | 2017-11-03 | 2017-11-03 | A kind of tail structure of electric fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721473840.5U CN207393564U (en) | 2017-11-03 | 2017-11-03 | A kind of tail structure of electric fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393564U true CN207393564U (en) | 2018-05-22 |
Family
ID=62325354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721473840.5U Active CN207393564U (en) | 2017-11-03 | 2017-11-03 | A kind of tail structure of electric fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207393564U (en) |
-
2017
- 2017-11-03 CN CN201721473840.5U patent/CN207393564U/en active Active
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