CN2588093Y - Miniature fan - Google Patents
Miniature fan Download PDFInfo
- Publication number
- CN2588093Y CN2588093Y CN 02290029 CN02290029U CN2588093Y CN 2588093 Y CN2588093 Y CN 2588093Y CN 02290029 CN02290029 CN 02290029 CN 02290029 U CN02290029 U CN 02290029U CN 2588093 Y CN2588093 Y CN 2588093Y
- Authority
- CN
- China
- Prior art keywords
- groove
- blades
- fan blade
- positioning
- sides
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a miniature fan, which is designed for overcoming the defect of unstable fixation of blades of the existing fan. The utility model comprises an upper and a lower casings and the blades connected with the upper and the lower casings. The utility model is characterized in that a fixed ring is connected between the upper casing and the lower casing; the side face of the fixed ring is provided with concave grooves for insertion of the blades; a plurality of alternate positioning strips are arranged in each concave groove, and both inner sides of each concave groove are provided with positioning grooves or positioning protrusions; the middle parts of the root parts of the blades are provided with corresponding alternate positioning strips, and both side of each of the blades are provided with corresponding positioning protrusions or positioning grooves. The utility model has the advantages that the blades are fixed by increasing the fixed ring; the blades can be fixed uniformly and firmly by uniform and tight cooperation of the grooves and the protrusions at both sides of the fixed ring and both sides of each blade.
Description
Technical field
The utility model relates to a kind of micro fan.
Background technique
Its fan blade of existing fan generally directly links to each other with housing, a kind of Soft wind electric fan housing and fan blade fixing device are disclosed as Chinese patent 01276890, it is characterized in that having three grooves at the upper shell of Soft wind electric fan housing or the inner side surface of lower shell body, at least one positioning hole or locating slot are arranged in each groove, there is a guiding groove groove inboard, the root of fan blade matches with groove, and at least one locating stud or positioning hole are respectively arranged on the root of each fan blade.But, fix inhomogeneous also unstable shortcoming thereby exist because fan blade only depends on locating stud or positioning hole on the root of positioning hole in the groove or locating slot and fan blade to fix.
Summary of the invention
Technical problem to be solved in the utility model be overcome the above-mentioned shortcoming that present micro fan exists and provide a kind of can be steadily, fixedly secure the micro fan of fan blade, make it safer, reliable, long service life.
The utility model solves the problems of the technologies described above the technological scheme that is adopted:
A kind of micro fan, comprise upper and lower casing and coupled fan blade, be connected and fixed circle between described upper shell and lower shell body, the retainer ring side has the groove of inserting fan blade, each spaced several positioning strip in each groove, respectively there are locating slot or positioning convex in groove two inboards, and the positioning strip at corresponding interval is arranged in the middle of the root of described fan blade, and corresponding positioning convex or locating slot are arranged on two sides.
Described retainer ring groove both can also can cooperate with upper shell during upside at downside at upside, cooperated with lower shell body during downside, and upper and lower casing and groove corresponding part can be the plane, also can be muscle at interval, can save material like this.
Adopt three because fan blade is normal, so groove also often is corresponding three.Can be a plurality of as required.
The interval of the fixed strip in the groove is changeable, should with the interval close-fitting of fan blade root, and the fixed strip of fan blade root and the interval close-fitting in the groove.The fixed strip number also can change according to the size of fan volume and the size of power.
A plurality of positioning convex or locating slot can be adopted in the groove both sides, with the locating slot of the similar number of fan blade both sides or positioning convex close-fitting mutually, increase fixedly fastness.
Compared with prior art, advantage of the present utility model is to fix fan blade by the increase retainer ring, and utilizes the groove of retainer ring both sides and fan blade both sides and the even close-fitting of projection, makes fan blade fixing balanced more, firm.
Description of drawings
Fig. 1 is the utility model embodiment's a explosive view;
Fig. 2 is the utility model embodiment's a housing and positive vaneless view after retainer ring is connected;
Fig. 3 is the fiting relation figure of the utility model embodiment retainer ring and blade.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, 2, fan comprises upper shell 1, lower shell body 3 and coupled fan blade 4, all the other structures are identical with common micro fan, hexacene omits in the drawings, and 3 of described upper shell 1 and lower shell bodys are connected and fixed circle 2, and retainer ring 2 sides have the groove 5 of inserting fan blade 4, each spaced several positioning strip 6 in each groove 5, respectively there is locating slot 7 groove two inboards, have in the middle of the root of described fan blade 4 on positioning strip 9, two sides at corresponding interval corresponding positioning convex 8 is arranged.
Retainer ring 2 is fixed on by screw 10 on the screw 11 of lower shell body 3 by screw, and upper shell 1 is fixed on the hole 13 of retainer ring 2 by the locating button on it 12.
As shown in Figure 3, in the interval of fan blade 4 by the groove 5 of the positioning strip 9 insertion retainer rings 2 of its root, the projection 8 on its both sides positioning strip is just inserted in the groove 7 of groove 5 dual-sides, and is closely fixing.
Because the face that the lower shell body in the present embodiment contacts with retainer ring is narrower, be fixed on lower shell body and retainer ring groove corresponding part is provided with muscle 14, support the root of fan blade.Also can make lower shell body and retainer ring surface of contact into is wide, and groove and lower casing dignity constitute fixedly sealing ring.
Claims (3)
1, a kind of micro fan, comprise upper and lower casing and coupled fan blade, it is characterized in that being connected and fixed circle between described upper shell and lower shell body, the retainer ring side has the groove of inserting fan blade, each spaced several positioning strip in each groove, respectively there are locating slot or positioning convex in groove two inboards, and the positioning strip at corresponding interval is arranged in the middle of the root of described fan blade, and corresponding positioning convex or locating slot are arranged on two sides.
2, micro fan as claimed in claim 1 is characterized in that: described retainer ring groove is at downside, and the lower shell body corresponding part is a muscle.
3, micro fan as claimed in claim 1 or 2 is characterized in that: there are a plurality of positioning convex or locating slot in described groove both sides, the locating slot that similar number is arranged or the positioning convex of fan blade both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02290029 CN2588093Y (en) | 2002-12-01 | 2002-12-01 | Miniature fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02290029 CN2588093Y (en) | 2002-12-01 | 2002-12-01 | Miniature fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2588093Y true CN2588093Y (en) | 2003-11-26 |
Family
ID=33749417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02290029 Expired - Fee Related CN2588093Y (en) | 2002-12-01 | 2002-12-01 | Miniature fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2588093Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297166A (en) * | 2009-03-04 | 2011-12-28 | 戴森技术有限公司 | Fan assembly |
| CN110107449A (en) * | 2019-03-12 | 2019-08-09 | 上海应达风机股份有限公司 | A kind of fan blade and its processing technology |
-
2002
- 2002-12-01 CN CN 02290029 patent/CN2588093Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297166A (en) * | 2009-03-04 | 2011-12-28 | 戴森技术有限公司 | Fan assembly |
| CN102297166B (en) * | 2009-03-04 | 2015-07-22 | 戴森技术有限公司 | Fan assembly |
| CN110107449A (en) * | 2019-03-12 | 2019-08-09 | 上海应达风机股份有限公司 | A kind of fan blade and its processing technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |