CN204692177U - A kind of fan - Google Patents
A kind of fan Download PDFInfo
- Publication number
- CN204692177U CN204692177U CN201520262105.4U CN201520262105U CN204692177U CN 204692177 U CN204692177 U CN 204692177U CN 201520262105 U CN201520262105 U CN 201520262105U CN 204692177 U CN204692177 U CN 204692177U
- Authority
- CN
- China
- Prior art keywords
- hub
- flabellum
- hub body
- fan
- support
- 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.)
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Classifications
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/328—Rotors specially for elastic fluids for axial flow pumps for axial flow fans with unequal distribution of blades around the hub
Abstract
The utility model discloses a kind of fan, comprise hub body, the periphery of hub body is provided with multiple overhanging hub support, hub support is provided with flabellum, hub support is asymmetric, non-equidistant formula be arranged in hub body, flabellum is made of plastics.The utility model hub body and hub support are made up of the iron plate of two pieces of punching presses, adopt molten solder, strengthen the join strength between two iron plates between two iron plates at hub body place; Hub support is asymmetric, non-equidistant formula be arranged in hub body, can avoid flabellum resonate and strengthen fan noise; Flabellum is fixed on hub support by rivet, avoids nut outstanding generation eddy current crack; Low hub ratio structure, adds the air quantity of fan, reduces the noise of fan.
Description
Technical field
The utility model relates to a kind of fan.
Background technique
Along with 2015 close on, the enforcement in GB GB/T 25614-2010 " the mensuration dynamic test condition of earth moving machinery sound power level " II stage and 16710-2010 " earth moving machinery noise level limit " II stage, wheel loader dynamic test must reach the requirement of the IIth stage limit value, otherwise must not produce and sell.Engine body noise, fan noise, Noise of Hydraulic System and air inlet system and exhaust system noise is followed successively by more greatly in outside engine noise dynamic test contribution amount.Irony fan noise is as one of loader Main Noise Sources, must take measures to carry out reducing fan noise, the design of past that cooling system is usually to ensure enough cooling effects compared with big fan speed ratio, higher rotation speed of the fan, higher noise will certainly be produced like this, cannot be checked and accepted by regulation.Be badly in need of the fan of a kind of Wind Volume, low noise for this reason.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of fan of low noise.
For solving the problems of the technologies described above, the utility model comprises hub body, the periphery of described hub body is provided with multiple overhanging hub support, described hub support is provided with flabellum, it is characterized in that described hub support is asymmetric, non-equidistant formula be arranged in hub body, described flabellum is made of plastics.
Described hub body and hub support are structure as a whole.
Described hub body and hub support are formed in hub body butt welding by two iron plates, and described hub support offers fixed hole, fix between two iron plates that described flabellum is installed in hub support with rivet through fixed hole.
Described hub ratio is 0.18-0.25.
Described hub body is provided with at least two circle screws.
Described hub support by with hub body joint laterally width reduce gradually.
Described flabellum is the sweepforward spade-type flabellum that outer end is wide, root is narrow.
Described hub support is five, and corresponding flabellum is also five.
Angle between the line of described adjacent hubs centre of support is followed successively by 46 °, 92 °, 65 °, 65 °, 92 °.
After adopting said structure, the utility model selects plastics flabellum, car weight can not only be alleviated, reduce fuel consume and hydrocarbon emission, also power character can be improved, because plastics are recyclable, thus save the resource consumption in manufacture process, make automobile in safety and cost two, obtain more breakthrough; Hub body and hub support are made up of the iron plate of two pieces of punching presses, adopt molten solder, strengthen the join strength between two iron plates between two iron plates at hub body place; Hub support is asymmetric, non-equidistant formula be arranged in hub body, can avoid flabellum resonate and strengthen fan noise; Flabellum is fixed on hub support by rivet, avoids nut outstanding generation eddy current crack; Low hub ratio structure, adds the air quantity of fan, reduces the noise of fan; Hub body inner ring is at least provided with double screw, the fan tray that convenient installation is different, improves applicability of the present utility model.
Accompanying drawing explanation
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation that Fig. 1 right side is looked;
Fig. 3 is the structural representation of Fig. 1 backsight;
Fig. 4 is the structural representation that Fig. 1 looks up.
Embodiment
Fan is as shown in Figures 1 to 4 fan blowing, and during use, fan turns clockwise, and is outwards dried by engine-side.Aforementioned fan comprises hub body 1, the periphery of hub body 1 is provided with 5 overhanging hub support 2, hub support 2 by with hub body 1 joint laterally width reduce gradually, hub support 2 is asymmetric, non-equidistant formula be arranged in hub body 1, hub support 2 is provided with flabellum 3.
In the utility model, hub body 1 and hub support 2 are structure as a whole.Hub body 1 and hub support 2 adopt molten solder to fix by two iron plates in hub body 1, strengthen the intensity between two iron plates, gap is left between two iron plates at each hub support 2 place, hub support 2 offers fixed hole 21, to fix with the fixed hole 21 of rivet through two iron plates between two iron plates that flabellum 3 is installed in hub support 2, flabellum 3 is by injection molding.Hub body 1 is provided with at least two circle screws 11, and the fan tray that convenient installation is different improves applicability of the present utility model.For improving efficiency of assembling, two iron plates have boss and groove in the corresponding punching press of the outer rim of hub body 1, during two iron plate assemblings, the boss of one iron plate engages with the groove of another iron plate, two iron plate location, two iron plate hub body 1 place blind-mate can be made, and then weld, improve the connection precision of two iron plates.
The hub ratio of fan is larger, and air quantity is less, and noise is larger, under the prerequisite ensureing fan intensity and installation dimension, reduce hub ratio, in the utility model, hub ratio is 0.18-0.25 as far as possible, and when theory calculate and experiment learn that hub ratio is 0.19, effect is best.The windup-degree of hub support 2 can be determined according to air quantity and blast, and general windup-degree is 20 ° ~ 40 °.
In the present embodiment, flabellum 3 is sweepforward spade-type flabellum 3, and flabellum 3 is open type, and its outer end is wide, and root is narrow, flabellum 3 body width is large, and long-pending large with air contact surfaces, blade sweepforward can be pressed into air in advance, form wind guiding structure, efficiency of calming the anger is high, effectively improves the air quantity of fan.
For avoiding the superposition of blade frequency multiplication, the simplest order of blade is 1:1.5:2, carry out different amount combination, optimum combination form is 45 °: 67.5 °: 90 °, but consider the factors such as accuracy rating, manufacture and mould in the design process, in the present embodiment, the adjacent hubs angle supported between 2 center lines is followed successively by 46 °, 92 °, 65 °, 65 °, 92 °.
The utility model selects plastics flabellum 3, can not only alleviate car weight, reduces fuel consume and hydrocarbon emission, also power character can be improved, because plastics are recyclable, thus save the resource consumption in manufacture process, make automobile in safety and cost two, obtain more breakthrough; Hub body 1 and hub support 2 are made up of the iron plate of two pieces of punching presses, adopt molten solder, strengthen the join strength between two iron plates between two iron plates at hub body 1 place; Hub support 2 is asymmetric, non-equidistant formula be arranged in hub body 1, flabellum 3 can be avoided to resonate and strengthen fan noise; Flabellum 3 is fixed on hub support 2 by rivet, avoids nut outstanding generation eddy current crack; Low hub ratio structure, adds the air quantity of fan, reduces the noise of fan; Hub body 1 inner ring is at least provided with double screw 11, the fan tray that convenient installation is different, improves applicability of the present utility model.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model.Previous embodiment has been described in detail the utility model, and for a person skilled in the art, it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.In every case, within inventive concept scope of the present utility model, any amendment made, equivalent replacement, improvement etc., be all included within protection domain of the present utility model.
Claims (9)
1. a fan, comprise hub body (1), the periphery of described hub body (1) is provided with multiple overhanging hub support (2), described hub support (2) is provided with flabellum (3), it is characterized in that described hub support (2) is asymmetric, non-equidistant formula be arranged in hub body (1), described flabellum (3) is made of plastics.
2. fan according to claim 1, is characterized in that described hub body (1) and hub support (2) are structure as a whole.
3. fan according to claim 2, it is characterized in that described hub body (1) and hub support (2) are formed in hub body (1) butt welding by two iron plates, described hub support (2) offers fixed hole (21), fix through fixed hole (21) with rivet between two iron plates that described flabellum (3) is installed in hub support (2).
4. fan according to claim 1, is characterized in that described hub ratio is 0.18-0.25.
5. fan according to claim 1, is characterized in that described hub body (1) is provided with at least two circles screw (11).
6. fan according to claim 1, it is characterized in that described hub support (2) by with hub body (1) joint laterally width reduce gradually.
7. fan according to any one of claim 1 to 6, is characterized in that described flabellum (3) is for outer end is wide, root is narrow sweepforward spade-type flabellum.
8. fan according to claim 7, is characterized in that described hub support (2) is five, and corresponding flabellum is also five.
9. fan according to claim 8, is characterized in that the angle that described adjacent hubs supports between (2) center line is followed successively by 46 °, 92 °, 65 °, 65 °, 92 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520262105.4U CN204692177U (en) | 2015-04-27 | 2015-04-27 | A kind of fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520262105.4U CN204692177U (en) | 2015-04-27 | 2015-04-27 | A kind of fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692177U true CN204692177U (en) | 2015-10-07 |
Family
ID=54232478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520262105.4U Active CN204692177U (en) | 2015-04-27 | 2015-04-27 | A kind of fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204692177U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156365A (en) * | 2015-10-14 | 2015-12-16 | 联想(北京)有限公司 | Fan and electronic equipment |
| CN108036671A (en) * | 2017-12-29 | 2018-05-15 | 广州星辰热能股份有限公司 | A kind of energy-saving cooling tower |
| CN108953224A (en) * | 2018-07-20 | 2018-12-07 | 安吉元融仪器仪表检测有限公司 | Fan |
| CN111425454A (en) * | 2020-03-31 | 2020-07-17 | Tcl空调器(中山)有限公司 | Axial flow fan blade and air conditioner outdoor unit |
-
2015
- 2015-04-27 CN CN201520262105.4U patent/CN204692177U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156365A (en) * | 2015-10-14 | 2015-12-16 | 联想(北京)有限公司 | Fan and electronic equipment |
| CN105156365B (en) * | 2015-10-14 | 2018-08-31 | 联想(北京)有限公司 | Fan and electronic equipment |
| US10570929B2 (en) | 2015-10-14 | 2020-02-25 | Lenovo (Beijing) Limited | Fan and method of manufacturing a fan |
| CN108036671A (en) * | 2017-12-29 | 2018-05-15 | 广州星辰热能股份有限公司 | A kind of energy-saving cooling tower |
| CN108953224A (en) * | 2018-07-20 | 2018-12-07 | 安吉元融仪器仪表检测有限公司 | Fan |
| CN111425454A (en) * | 2020-03-31 | 2020-07-17 | Tcl空调器(中山)有限公司 | Axial flow fan blade and air conditioner outdoor unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |