CN210317895U - Multi-section type fan with flow guiding hub structure - Google Patents
Multi-section type fan with flow guiding hub structure Download PDFInfo
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- CN210317895U CN210317895U CN201920924210.8U CN201920924210U CN210317895U CN 210317895 U CN210317895 U CN 210317895U CN 201920924210 U CN201920924210 U CN 201920924210U CN 210317895 U CN210317895 U CN 210317895U
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- fan blade
- fan
- flow guide
- root
- concave surface
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 241000883990 Flabellum Species 0.000 claims description 24
- 238000001746 injection moulding Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 23
- 210000003205 muscle Anatomy 0.000 description 27
- 239000002352 surface water Substances 0.000 description 10
- 230000003068 static effect Effects 0.000 description 8
- 238000005728 strengthening Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a multistage formula water conservancy diversion wheel hub structure fan, it includes: the fan comprises a fan core body, fan blades, fan blade root flow guide ribs, fan blade concave surface flow guide ribs, fan blade convex surface flow guide ribs and reinforcing ribs, wherein one surface of each fan blade is a fan blade convex surface, and the other surface of each fan blade is a fan blade concave surface; one end of the fan blade root flow guiding rib starts from the root position of the convex surface of the fan blade, and the other end of the fan blade root flow guiding rib passes through one or more fan blades along one direction and extends to the front edge position of the next fan blade to be terminated; the fan blade concave surface flow guiding rib starts from the front edge position of the fan blade concave surface closest to the tail end of the fan blade root flow guiding rib and ends at the rear edge position of the fan blade; the fan blade convex surface flow guiding ribs start from the front edge position of the fan blade convex surface closest to the tail end of the fan blade root flow guiding rib and end at the position near the rear edge of the fan blade.
Description
Technical Field
The utility model relates to a cooling system field specifically is one kind and turns into thrust, the multistage formula water conservancy diversion wheel hub structure fan of a large amount of gas of propelling movement with rotating power.
Background
The fan, as a common device for gas transportation and energy conversion, can be used in an open space, and also can be used in a relatively limited space such as a pipeline. The fan is widely applied to the fields of aviation, ships, automobiles, household appliances and the like, and plays an important role in modern production and life.
The fans are distinguished according to the airflow flowing mode and mainly divided into axial fans and centrifugal fans, wherein the axial fans mainly utilize fan blades to push air, and pressure difference is generated between an air inlet and an air outlet to enable the air to be conveyed to the air outlet along the axial direction, such as an exhaust fan; centrifugal fans use primarily centrifugal force to generate pressure that causes the air to be delivered tangentially to an outlet, such as a blower. The design of the fan is directly related to the performance of the fan. This patent optimizes the wheel hub region on the basis of the common blade profile of the fan to further improve the overall performance of the fan.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to solve current fan design technical limitation, multistage formula water conservancy diversion wheel hub structure fan, this fan is used for space ventilation cooling, the relevant field of gas delivery, this fan can increase fan flow, improves power coefficient.
The technical scheme is as follows: in order to realize above mesh, a multistage formula water conservancy diversion wheel hub structure fan, it includes: the fan comprises a fan core body, fan blades, fan blade root flow guide ribs, fan blade concave surface flow guide ribs, fan blade convex surface flow guide ribs and reinforcing ribs fixed on the fan blades;
one surface of each fan blade is a convex surface, the other surface of each fan blade is a concave surface, and the fan blades are fixed on the fan core body in an insert injection molding mode;
one end of the fan blade root flow guide rib starts from the root position of the convex surface of the fan blade, and the other end of the fan blade root flow guide rib passes through one or more fan blades along one direction and extends to the front edge position of the next fan blade to be terminated;
the fan blade concave surface flow guide rib starts from the front edge position of the fan blade concave surface closest to the tail end of the fan blade root flow guide rib and ends at the rear edge position of the fan blade;
the fan blade convex surface flow guide rib starts from the front edge position of the fan blade convex surface closest to the tail end of the fan blade root flow guide rib and ends at the position near the rear edge of the fan blade;
the fan blade root water conservancy diversion muscle and flabellum concave surface water conservancy diversion muscle pass through the strengthening rib and connect, flabellum root water conservancy diversion muscle and flabellum concave surface water conservancy diversion muscle not be on an extension and be equipped with the difference in height between the two, under the operating condition, this design forms the vortex region between two water conservancy diversion muscle, can reduce the gas that flows through the water conservancy diversion muscle from the groove region and the frictional resistance on fan surface to improve gas flow.
As the utility model discloses a further preferred, flabellum root water conservancy diversion muscle and flabellum convex surface form the recess, the recess cross-section is convex or V-arrangement, under operating condition, utilize the pressure differential of the gaseous relative velocity of flow difference production of different radius positions, with the inboard gaseous concave surface of leading-in adjacent flabellum of recess high efficiency that passes through of wheel hub, this structure can effectively increase and add the fan flow, improve power coefficient.
As the utility model discloses a further preferred, the initial position of termination point of flabellum root water conservancy diversion muscle and flabellum concave surface water conservancy diversion muscle between be connected through the strengthening rib, under operating condition, this design forms the vortex region between two water conservancy diversion muscle, can reduce the gas of flowing through the water conservancy diversion muscle from the recess region and the frictional resistance on fan surface to improve gas flow.
As the utility model discloses a further preferred, flabellum convex surface water conservancy diversion muscle C and adjacent flabellum root water conservancy diversion muscle A form less contained angle, under operating condition, this design forms airflow channel between two water conservancy diversion muscle, guide root air current reduces energy loss, reduces the eddy current noise.
As the utility model discloses a further preferred, the strengthening rib that uses between the adjacent water conservancy diversion muscle forms H shape, X shape or triangular structure and strengthens, and this structure can effectively increase wheel hub root bending resistance, reduces wheel hub stress concentration.
As the utility model discloses a further preferred, flabellum convex surface water conservancy diversion muscle form the contained angle with adjacent flabellum root water conservancy diversion muscle, form airflow channel, guide root air reduces energy loss, thereby reduces the vortex noise and increases fan flow, improves the power coefficient.
As a further preferred aspect of the present invention, the joint of the reinforcing rib and the fan core is provided with one or more holes for receiving balance pins to adjust the static unbalance of the fan.
As the utility model discloses a further preferred, water conservancy diversion muscle, strengthening rib formula structure as an organic whole, guaranteed the stability of structure through integrated into one piece's mode, increased the reliability of work.
Has the advantages that: multistage formula water conservancy diversion wheel hub structure fan, compare with prior art, have following advantage under operating condition:
1. the guide ribs, the reinforcing ribs and the air at the root of the fan blade are efficiently guided into the concave surface of the adjacent fan blade through the grooves formed by the guide ribs A at the root of the fan blade and the convex surface of the fan blade by utilizing the pressure difference generated by the relative flow speed difference of the air at different radius positions, so that the flow of the air adding fan can be effectively increased, and the power coefficient is improved;
2. the eddy current area formed between the flow guiding ribs on the concave surfaces of the two adjacent fan blades is utilized to reduce the friction resistance between the air flowing through the flow guiding ribs from the groove area and the surface of the fan, and the air flow is improved;
3. an included angle formed by the convex guide ribs of the fan blade and the guide ribs at the root part of the adjacent fan blade is utilized, so that an airflow channel is generated, airflow at the root part of the blade is guided and restrained, energy loss is reduced, and eddy noise is reduced;
4. the fan blade concave surface flow guiding ribs guide the gas guided out from the root of the fan blade to the area with higher working efficiency of the fan blade, further improve the flow guiding effect of the hub, improve the strength of the fan blade and reduce the stress and deformation of the fan blade;
5. the reinforcing ribs effectively increase the bending resistance of the root part of the hub and reduce the stress concentration of the hub;
6. one or more holes are arranged at the joint of the reinforcing rib and the fan core body and used for placing balance pins to adjust the static unbalance of the fan and reduce the shrinkage deformation of the injection molding part in the area.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a rear view of the present invention;
fig. 3 is a perspective view of the present invention;
FIG. 4 is a schematic structural view of the concave surface of the present invention;
fig. 5 is a partial view of the left side view of the present invention;
FIG. 6 is a partial enlarged view of the present invention;
FIG. 7 is a schematic view of the gas flow direction;
FIG. 8 is a schematic view of flow, static pressure, efficiency curves;
FIG. 9 is a flow and power curve;
Detailed Description
The invention will be further elucidated with reference to the drawings and the specific embodiments.
Fig. 1 is a front view of the present invention, which is used to show the airflow direction of the flow guiding rib a at the root of the fan blade when the fan works; FIG. 2 is a rear view of the fan to show the concave structure of the fan; fig. 3 is a perspective view of the present invention, which is used to show the direction of airflow guided by the convex flow guiding rib C; fig. 4 is a schematic structural view of the concave surface of the present invention, which is used to show the fan blade concave surface flow guiding rib B and the reinforcing rib E; as shown in fig. 5 the utility model discloses the local view of left side view is used for demonstrateing the relative position of flabellum root water conservancy diversion muscle A and flabellum concave surface water conservancy diversion muscle B, as shown in fig. 6 be the utility model discloses a local enlarger is used for demonstrateing the relative position of flabellum root water conservancy diversion muscle A, flabellum concave surface water conservancy diversion muscle B and strengthening rib E, moves towards the schematic diagram for the air current as shown in fig. 7, is used for demonstrateing the vortex region that forms between flabellum root water conservancy diversion muscle A and the flabellum concave surface water conservancy diversion muscle B, can reduce the gaseous and the surperficial frictional resistance of fan of.
As shown in fig. 1 to 7, multistage formula water conservancy diversion wheel hub structure fan, it includes fan core body K, flabellum X, flabellum root water conservancy diversion muscle A, flabellum concave surface water conservancy diversion muscle B, flabellum convex surface water conservancy diversion muscle C and fixes strengthening rib E on flabellum X, strengthening rib E be equipped with one or more hole groove D with fan core body K's junction.
Example 1
The fan blade root flow guiding ribs A and the fan blade concave surface flow guiding ribs B are fixed on the fan core body K in an insert injection molding mode, one end of each fan blade root flow guiding rib A starts from the root position of the convex surface of each fan blade, and the other end of each fan blade root flow guiding rib A passes through one or more fan blades along one direction and extends to the front edge position of the next fan blade to be terminated; the fan blade concave surface flow guide rib B starts from the front edge position of the fan blade concave surface closest to the tail end of the fan blade root flow guide rib A and ends at the rear edge position of the fan blade; the fan blade convex surface flow guiding rib C starts from the position of the front edge of the fan blade convex surface closest to the tail end of the fan blade root flow guiding rib A and ends at the position close to the rear edge of the fan blade; the end position of the fan blade root flow guide rib A and the initial position of the fan blade concave surface flow guide rib B are connected through the reinforcing rib D, and a height difference is formed between the end position of the fan blade root flow guide rib A and the initial position of the fan blade concave surface flow guide rib B.
The motor drives the fan core K to rotate so as to drive the fan blades X to rotate, at the moment, air inside the fan core K passes through the fan blade root flow guide ribs A and flows through the fan blades X, and the air is guided to the concave surface of the next fan blade X through the fan blade concave surface flow guide ribs B; the included angle formed by the fan blade convex surface flow guiding rib C and the adjacent fan blade root flow guiding rib A generates an airflow channel, guides the root air, reduces energy loss, reduces vortex noise, increases the fan flow and improves the power coefficient; one or more holes D are arranged at the joint of the reinforcing rib E and the core body K and used for placing balance pins to adjust the static unbalance of the fan and reduce the shrinkage deformation of the injection molding part in the area.
Comparative analysis experiment
1. For analytical purposes:
based on fans with different hub structures and similar blade profile parameters, fan performances including air volume, static pressure, power and static pressure efficiency are analyzed under the same condition.
2. Analysis of the object:
the first object is: the fan of the invention;
object two: a fan of conventional construction.
3. Analyzing the working condition:
| fan diameter (mm) | 780 | Fan in state | Is extended by 66 percent |
| Diameter of wind protection ring (mm) | 800 | Blade tip clearance (mm) | 10 |
| Ambient temperature (. degree. C.) | 20 | Atmospheric pressure (kPa) | 101 |
| Rotational speed (rpm) | 1500 | Gas (es) | Air (a) |
Test reference standard: GB/T1236-2000 Standard air duct for Industrial ventilator Performance test.
4. Analyzing data:
table one is performance data of the hub fan according to the present invention;
table two is performance data for a fan based on a conventional hub configuration.
5. Curve of experimental data
As shown in FIG. 8, the curve of the flow, static pressure and efficiency is schematically illustrated, and the static pressure and efficiency of the fan are obviously improved compared with the fan with the conventional structure under the same flow.
Fig. 9 is a schematic diagram of a flow rate and power curve, and the fan power of the present invention is close to that of the fan with the conventional structure according to the curve in the drawing.
Claims (7)
1. A fan with multi-section type flow guide hub structure comprises: fan core and flabellum, its characterized in that: it still includes: the fan blade comprises a fan blade root flow guide rib, a fan blade concave surface flow guide rib, a fan blade convex surface flow guide rib and a reinforcing rib fixed on the fan blade;
one surface of each fan blade is a convex surface, the other surface of each fan blade is a concave surface, and the fan blades are fixed on the fan core body in an insert injection molding mode;
one end of the fan blade root flow guide rib starts from the root position of the convex surface of the fan blade, and the other end of the fan blade root flow guide rib passes through one or more fan blades along one direction and extends to the front edge position of the next fan blade to be terminated;
the fan blade concave surface flow guide rib starts from the front edge position of the fan blade concave surface closest to the tail end of the fan blade root flow guide rib and ends at the rear edge position of the fan blade;
the fan blade convex surface flow guide rib starts from the front edge position of the fan blade convex surface closest to the tail end of the fan blade root flow guide rib and ends at the position near the rear edge of the fan blade;
the fan blade root flow guide ribs and the fan blade concave surface flow guide ribs are connected through the reinforcing ribs, the fan blade root flow guide ribs and the fan blade concave surface flow guide ribs are not on an extension line, and a height difference is arranged between the fan blade root flow guide ribs and the fan blade concave surface flow guide ribs.
2. The fan with multi-sectional flow-guiding hub structure of claim 1, wherein: the guide ribs at the root part of the fan blade and the convex surface of the fan blade form a groove, and the section of the groove is arc-shaped or V-shaped.
3. The fan with multi-sectional flow-guiding hub structure of claim 1, wherein: the end position of the flow guide rib at the root part of the fan blade is connected with the initial position of the flow guide rib on the concave surface of the fan blade through a reinforcing rib.
4. The fan with multi-sectional flow-guiding hub structure of claim 1, wherein: the reinforcing ribs used between the adjacent flow guide ribs form H-shaped, X-shaped or triangular structural reinforcement.
5. The fan with multi-sectional flow-guiding hub structure of claim 1, wherein: the blade convex surface flow guide rib and the adjacent blade root flow guide rib form an included angle.
6. The fan with multi-sectional flow-guiding hub structure of claim 1, wherein: one or more hole grooves are formed in the joint of the reinforcing rib and the fan core body.
7. The fan with multi-sectional flow-guiding hub structure of claim 1, wherein: the flow guide ribs and the reinforcing ribs are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920924210.8U CN210317895U (en) | 2019-06-19 | 2019-06-19 | Multi-section type fan with flow guiding hub structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920924210.8U CN210317895U (en) | 2019-06-19 | 2019-06-19 | Multi-section type fan with flow guiding hub structure |
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| Publication Number | Publication Date |
|---|---|
| CN210317895U true CN210317895U (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920924210.8U Withdrawn - After Issue CN210317895U (en) | 2019-06-19 | 2019-06-19 | Multi-section type fan with flow guiding hub structure |
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| Country | Link |
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| CN (1) | CN210317895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107530A (en) * | 2019-06-19 | 2019-08-09 | 苏州睿昕汽车配件有限公司 | Multisection type water conservancy diversion wheel hub structure fan |
-
2019
- 2019-06-19 CN CN201920924210.8U patent/CN210317895U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107530A (en) * | 2019-06-19 | 2019-08-09 | 苏州睿昕汽车配件有限公司 | Multisection type water conservancy diversion wheel hub structure fan |
| CN110107530B (en) * | 2019-06-19 | 2023-12-29 | 苏州睿昕汽车配件有限公司 | Multi-section type diversion hub structure fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multi stage guide hub structure fan Effective date of registration: 20230511 Granted publication date: 20200414 Pledgee: Jiangsu Taicang Rural Commercial Bank Co.,Ltd. Huaxia Branch Pledgor: SUZHOU RISING AUTO PARTS Co.,Ltd. Registration number: Y2023980040376 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200414 Effective date of abandoning: 20231229 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200414 Effective date of abandoning: 20231229 |