CN112943708A - Wrinkle type vibration fan blade - Google Patents
Wrinkle type vibration fan blade Download PDFInfo
- Publication number
- CN112943708A CN112943708A CN202110119661.6A CN202110119661A CN112943708A CN 112943708 A CN112943708 A CN 112943708A CN 202110119661 A CN202110119661 A CN 202110119661A CN 112943708 A CN112943708 A CN 112943708A
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- Prior art keywords
- corrugated
- edges
- edge
- rectangular
- fan blade
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D33/00—Non-positive-displacement pumps with other than pure rotation, e.g. of oscillating type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a corrugated type vibration fan blade, which consists of a corrugated part and a straight part; the straight part is fixed on the vibration fan device; the folding part is composed of a plurality of basic units; each basic unit is composed of two rectangular torsion structures; each rectangular torsion structure is obtained by not twisting one edge of a pair of edges of the rectangle and twisting the other edge of the pair of edges of the rectangle along a symmetrical axis vertical to the edge; in each basic unit, one side of the other pair of edges in the two rectangular torsion structures is connected to form a basic unit; the side edges of the basic units are connected in sequence to form a wrinkle part; the bottom edge of the folding part is connected with the top edge of the straight part. The front area of the blade is designed to be corrugated, is a space structure rather than a plane structure, the complexity of the vibration fan device is not increased, the corrugated front area increases the air sweeping area, and the air outlet capacity is more uniform when air is swept leftwards and rightwards.
Description
Technical Field
The invention relates to the field of blade shapes, in particular to a corrugated type vibration fan blade.
Background
The vibration fan radiator is widely applied to the heat dissipation process of electronic equipment and power equipment as a novel heat dissipation device, the working principle is that the vibration original piece reciprocates to drive the continuous periodic swing of fan blades, and further the peripheral airflow motion is disturbed to realize the cooling purpose, so that the shape of the fan blades has obvious influence on the heat dissipation effect on the vortex structure generated when the blades work. The traditional vibration fan blade is of a plane rectangular structure, and the defects of the shape are that the air outlet of the blade is not uniform, the wind resistance of the blade is not uniformly distributed, and the air supply capacity is weaker, so that the heat dissipation effect is reduced.
In order to overcome the above problems, researchers have proposed various improved structures, such as a bifurcated beam fan whose blades are composed of a rectangular main beam and curved side beams, which is proposed in the document No. 201920477247.0, and which can improve the blowing capacity. The main beam moves and drives the side beam to move, so that the air supply capacity of the blade is increased. However, this greatly increases the complexity of the fan, increases the processing difficulty, and significantly increases the uncertainty factor caused by the complexity of the device itself. Therefore, it is necessary to design a fan blade with simple structure, stability, reliability and remarkable heat dissipation effect.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problem of providing a corrugated type vibration fan blade structure.
The technical scheme for solving the technical problem is to provide a corrugated type vibration fan blade which is characterized in that the blade consists of a corrugated part and a straight part; the straight part is a rectangular structure and is fixed on the vibrating fan device;
the folding part is composed of a plurality of basic units; each basic unit is composed of two rectangular torsion structures; each rectangular torsion structure is obtained by not twisting one edge of a pair of edges of the rectangle and twisting the other edge of the pair of edges of the rectangle along a symmetrical axis vertical to the edge; the untwisted side is a horizontal side, and the twisted side is a twisted side; in each basic unit, one side of the other pair of edges in the two rectangular torsion structures is connected to form a basic unit;
the side edges of the basic units are connected in sequence to form a wrinkle part; the horizontal edges of the basic units form the bottom edges of the corrugated parts, and the twisted edges of the basic units form the top edges of the corrugated parts; the bottom edge of the folding part is connected with the top edge of the straight part.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention designs the front area of the blade into a corrugated type, and the front area of the blade is of a spatial structure rather than a planar structure. When the blades are assembled on the electromagnetic vibration fan to work, the corrugated front area of the blades increases the air sweeping area, so that the air supply capacity of the blades is stronger, and the heat dissipation effect is improved; the air outlet capacity of the fan blades during left-right air sweeping is more uniform, and the resistance distribution of the blades is also more uniform; meanwhile, the optimal working point of the electromagnetic vibration fan is correspondingly changed, and the service life is prolonged.
(2) The invention only improves the shape of the fan blade, keeps other components of the vibration fan unchanged, does not increase the complexity of the vibration fan device, and has simple and reliable structure.
Drawings
FIG. 1 is a schematic view of a blade structure according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of a rectangular twisted structure according to embodiment 1 of the present invention;
FIG. 3 is a schematic view of a blade structure according to embodiment 2 of the present invention;
FIG. 4 is a schematic view of a blade structure according to embodiment 3 of the present invention;
FIG. 5 is a schematic view of a blade structure according to embodiment 4 of the present invention;
FIG. 6 is a schematic view of a blade structure according to embodiment 5 of the present invention;
fig. 7 is a force diagram of the blowing performance of the vibration fan mounted with the blades of embodiment 1 of the present invention and the vibration fan of the conventional rectangular blades.
In the figure: 1. a crumple section; 2. a straight portion; 3. a rectangular torsion structure; 4. a bottom edge of the fold part; 5. the top edge of the straight part; 6. the top edge of the crumple part; 7. the side of the corrugated part.
Detailed Description
Specific examples of the present invention are given below. The specific examples are only intended to illustrate the invention in further detail and do not limit the scope of protection of the claims of the present application.
The invention provides a corrugated type vibration fan blade (blade for short), which is characterized in that the blade consists of a corrugated part 1 and a straight part 2; the straight part 2 is a rectangular structure and is fixed on the vibration fan device;
the crumple part 1 is composed of a plurality of basic units; each basic unit is composed of two rectangular torsion structures 3; each rectangular torsion structure 3 is obtained by torsion of one side of a pair of edges of a rectangle without torsion and the other edge of the pair of edges of the rectangle with a symmetry axis perpendicular to the side, namely the non-torsion side is horizontal and is a horizontal side, the torsion angle is 0, the torsion side is a torsion side, the torsion angle is maximum, and the torsion side and the horizontal side form an included angle; in one basic unit, one side of the other pair of edges of the two rectangular torsion structures 3 is connected, and the two rectangular torsion structures 3 are arranged in axial symmetry; two sides of the other pair of edges in the rectangular torsion structure 3 are the sides of the basic unit;
the side edges of the basic units are connected in sequence to form a folding part 1; the horizontal sides of the basic units form the bottom sides 4 of the crumples, and the twisted sides of the basic units form the top sides 6 of the crumples; the bottom edge 4 of the corrugated part is connected with the top edge 5 of the straight part 2 to form a whole or an integrated design.
Preferably, the torsion angle of the rectangular torsion structure 3 is gradually reduced from the torsion side to the horizontal side.
Preferably, the fold bottom 4 is entirely rectilinear; the top edge 6 of the wrinkle part is integrally in a sawtooth shape; the two sides 7 of the folding part are both linear.
Preferably, the sawtooth pattern is a triangular sawtooth or a corrugated sawtooth.
Example 1
In the embodiment, the folding part 1 is composed of 4 identical basic units, and the length of the side edge of the folding part 1 is equal to that of the straight part 2; the top edge 6 of the corrugated part is a triangular sawtooth, and the two sides 7 of the corrugated part have the same length.
The blades of the corrugated part 1 consisting of 4 basic units and the traditional rectangular blades (namely, the four sides are all linear type and the blades are straight) are respectively arranged in the vibrating fan, the wind speed of the center position of the top end of the blades during working is monitored (as shown in figure 7), and the wind outlet effect is compared. Experiments show that the vibrating fan provided with the blades can obtain a larger air outlet effect, and compared with the vibrating fan with the traditional rectangular blades, the maximum wind speed of the vibrating fan can be increased by 0.58m/s, and the average wind speed in one vibration period can be increased by 0.43 m/s. Through specific example tests, the blade provided by the invention can increase the air outlet effect, so that the cooling capacity is stronger, the heat transfer efficiency is increased, and the complexity of the device is not increased.
Example 2
In this embodiment, the folding part 1 is composed of 4 identical basic units, and the side length of the folding part 1 is greater than that of the straight part 2; the top edge 6 of the corrugated part is a triangular sawtooth, and the two sides 7 of the corrugated part have the same length.
Example 3
In this embodiment, the wrinkle part 1 is composed of 4 different basic units, the maximum side length of the wrinkle part 1 is equal to the side length of the straight part 2, and the rest side lengths are smaller than the side length of the straight part 2; the top edge 6 of the corrugated part is a triangular sawtooth, and the side edges of the 4 basic units are different in length.
Example 4
In the embodiment, the folding part 1 is composed of 8 identical basic units, and the length of the side edge of the folding part 1 is equal to that of the straight part 2; the top edge 6 of the corrugated part is a triangular sawtooth, and the two sides 7 of the corrugated part have the same length.
Example 5
In the embodiment, the folding part 1 is composed of 4 identical basic units, and the length of the side edge of the folding part 1 is equal to that of the straight part 2; the top edge 6 of the fold is a wave-shaped sawtooth, and the two sides 7 of the fold are of equal length.
Nothing in this specification is said to apply to the prior art.
Claims (6)
1. A corrugated type vibration fan blade is characterized in that the blade consists of a corrugated part and a straight part; the straight part is a rectangular structure and is fixed on the vibrating fan device;
the folding part is composed of a plurality of basic units; each basic unit is composed of two rectangular torsion structures; each rectangular torsion structure is obtained by not twisting one edge of a pair of edges of the rectangle and twisting the other edge of the pair of edges of the rectangle along a symmetrical axis vertical to the edge; the untwisted side is a horizontal side, and the twisted side is a twisted side; in each basic unit, one side of the other pair of edges in the two rectangular torsion structures is connected to form a basic unit;
the side edges of the basic units are connected in sequence to form a wrinkle part; the horizontal edges of the basic units form the bottom edges of the corrugated parts, and the twisted edges of the basic units form the top edges of the corrugated parts; the bottom edge of the folding part is connected with the top edge of the straight part.
2. The corrugated vibratory fan blade of claim 1 wherein the twisted edges are angled from the horizontal edges.
3. The corrugated vibratory fan blade of claim 1 wherein in each base unit, the two rectangular torsional structures are arranged axisymmetrically.
4. The corrugated vibratory fan blade of claim 1 wherein the rectangular twist configuration has a twist angle that decreases from the twisted side to the horizontal side.
5. The corrugated vibratory fan blade of claim 1 wherein the corrugated portion has a generally linear bottom edge; the top edge of the folding part is integrally in a sawtooth shape; the side edges of the two folding parts are linear.
6. The corrugated vibratory fan blade of claim 5 wherein the saw tooth pattern is a triangular saw tooth or a corrugated saw tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110119661.6A CN112943708B (en) | 2021-01-28 | 2021-01-28 | Wrinkle type vibration fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110119661.6A CN112943708B (en) | 2021-01-28 | 2021-01-28 | Wrinkle type vibration fan blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112943708A true CN112943708A (en) | 2021-06-11 |
| CN112943708B CN112943708B (en) | 2022-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110119661.6A Active CN112943708B (en) | 2021-01-28 | 2021-01-28 | Wrinkle type vibration fan blade |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2564534A1 (en) * | 1984-05-21 | 1985-11-22 | Lahlou Jean Claude | Pneumatic device for producing waves in a liquid medium and process for its application |
| CN2376552Y (en) * | 1999-05-11 | 2000-05-03 | 胡敏德 | Screw type impeller axial-flow fan |
| CN101397971A (en) * | 2007-09-27 | 2009-04-01 | 邓志宏 | Wave energy propeller |
| CN103423174A (en) * | 2012-05-15 | 2013-12-04 | 台达电子工业股份有限公司 | Vibrating fan |
| WO2014007088A1 (en) * | 2012-07-04 | 2014-01-09 | 株式会社村田製作所 | Piezoelectric fan |
| CN106574637A (en) * | 2014-07-30 | 2017-04-19 | 株式会社R-Flow | Piezo fan |
-
2021
- 2021-01-28 CN CN202110119661.6A patent/CN112943708B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2564534A1 (en) * | 1984-05-21 | 1985-11-22 | Lahlou Jean Claude | Pneumatic device for producing waves in a liquid medium and process for its application |
| CN2376552Y (en) * | 1999-05-11 | 2000-05-03 | 胡敏德 | Screw type impeller axial-flow fan |
| CN101397971A (en) * | 2007-09-27 | 2009-04-01 | 邓志宏 | Wave energy propeller |
| CN103423174A (en) * | 2012-05-15 | 2013-12-04 | 台达电子工业股份有限公司 | Vibrating fan |
| WO2014007088A1 (en) * | 2012-07-04 | 2014-01-09 | 株式会社村田製作所 | Piezoelectric fan |
| CN106574637A (en) * | 2014-07-30 | 2017-04-19 | 株式会社R-Flow | Piezo fan |
Non-Patent Citations (3)
| Title |
|---|
| SHUBO LI等: "The Microwave Propagation in a Dust Plasma of a DC Glow Discharge’", 《PHOTONICS & ELECTROMAGNETICS RESEARCH SYMPOSIUM》 * |
| 周兢: "《幼儿园亲子活动手册》", 31 August 2002 * |
| 闵春华等: "涡轮叶片尾缘扰流柱最佳形状的研究", 《工业加热》 * |
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| Publication number | Publication date |
|---|---|
| CN112943708B (en) | 2022-09-30 |
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