CN202833301U - Axial fan and air conditioner outside machine - Google Patents
Axial fan and air conditioner outside machine Download PDFInfo
- Publication number
- CN202833301U CN202833301U CN201220490288.1U CN201220490288U CN202833301U CN 202833301 U CN202833301 U CN 202833301U CN 201220490288 U CN201220490288 U CN 201220490288U CN 202833301 U CN202833301 U CN 202833301U
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- wheel hub
- axial fan
- air conditioner
- blade
- fan
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Abstract
The utility model provides an axial fan and an air conditioner outside machine which adopts the axial fan, and can solve the problems that air quantity is not enough, the noise is high and a required motor input power is high which are existing in the prior art. The axial fan comprises vanes and a wheel hub, wherein the projection of the joint parts of the vanes and the wheel hub is a linear segment, and the shape from contour of the projection of the wheel hub along the shaft direction is an equilateral triangle with smoothed vertexes. According to the axial fan, the shape of the projection of the joint parts of the vanes and the wheel hub along the shaft direction of the wheel hub is changed, the triangular wheel hub is designed to replace a round wheel hub which is generally used currently, and the performance of the fan is improved on the basis that a vane shape of the fan is not changed, so the requirements of high efficiency and low noise are met.
Description
Technical field
The utility model belongs to air-conditioning technical field, specifically, relates to the architecture advances of the axial fan wheel hub in a kind of air conditioner outdoor machine.
Background technique
Require more and more higher today in the Energy Efficiency Ratio to ventilation devices such as air-conditionings, existing axial fan mechanical efficiency is generally on the low side, can not satisfy the requirement of high air quantity, high blast, low noise, in the urgent need to improvement, so that overall performance is made breakthroughs energy-saving and noise-reducing.
For open low-pressure shaft flow fan, generally adopt at present circular hub, but the used open low-pressure shaft flow fan mechanical efficiency of air-conditioning outer machine and compound ventilation air-changing device is low, noise is larger, underfed, the problem that overall weight is larger.
Summary of the invention
The utility model provides a kind of axial fan and has adopted the air conditioner outdoor machine of this axial fan, and it is large and require the higher problem of power input to machine that it can solve deficiency in draught, noise that prior art exists.
In order to solve the problems of the technologies described above, the utility model provides a kind of axial fan on the one hand, comprises blade and wheel hub, described blade and wheel hub junction along hub spindle to be projected as straightway.
The wheel hub of the utility model axial fan and blade junction along hub spindle to be projected as straightway, having changed existing circular hub and blade junction is the shape of circular arc, so that fan performance improves greatly, because just because of wheel hub and blade junction along hub spindle to be projected as straightway, its junction is actual to be a plane, in the process of fan rotation, respective vanes thrust has been given on the plane of this junction, thereby can improve the performance of fan.
Further, the contour shape of vertically projection of described wheel hub is the equilateral triangle that the round and smooth processing of fillet is done on the summit.
Further, described blade comprises three, and the position of each blades installation on wheel hub is corresponding to the limit of equilateral triangle wheel hub.In general, three blades of the at present many employings of air conditioner outdoor machine axial fan, equilateral triangle wheel hub and three blade integral matching effects are better, so that the mechanical efficiency of flabellum is higher.Certainly, if axial fan adopts four blades or more, wheel hub is also changed into quadrilateral or polygonal accordingly, the junction that guarantees blade and wheel hub along hub spindle to projection remain straightway.
Wherein, described wheel hub is provided with at least one stiffening rib, to strengthen the intensity of wheel hub.
Usually, described stiffening rib is made as radiation strip or circle.
On the other hand, the utility model also provides a kind of air conditioner outdoor machine, comprises axial fan, and described axial fan comprises blade and wheel hub, described blade and wheel hub junction along hub spindle to be projected as straightway.
Further, the contour shape of vertically projection of described wheel hub is the equilateral triangle that the round and smooth processing of fillet is done on the summit.
Further, described blade comprises three, and the position of each blades installation on wheel hub is corresponding to the limit of equilateral triangle wheel hub.
Wherein, described wheel hub is provided with at least one stiffening rib, to strengthen intensity.
Usually, described stiffening rib is made as radiation strip or circle.
The specific design principle of equilateral triangle wheel hub is as follows:
As shown in Figure 1, set up wheel hub circle R based on the primitive level radius of blade root minimum, draw equilateral triangle T take this round heart as triangle center, thereby determine leg-of-mutton three summits of wheel hub.Consider the design that blade and wheel hub junction structure are finally finished the triangle wheel hub based on triangular apex.Process according to axial fan actual size diabolo tip rounding afterwards.In order to satisfy requirement of strength, wheel hub need to design corresponding reinforcing rib structure.
Because three blades of the at present many employings of air-conditioning outer machine axial fan, triangle wheel hub and blade integral matching effect are better, so that the mechanical efficiency of flabellum is higher, the requirement of satisfying the high air quantity of air-conditioning outer machine fan, high blast, low noise are had certain effect.
Axial fan of the present utility model adopts the triangle wheel hub, is conducive to reduce the motor input efficiency, and noise is lower, and the complete machine operational efficiency is higher.
The design principle of unnecessary quadrilateral or polygonal wheel hub and triangle wheel hub are similar.
The utility model compared with prior art has the following advantages and good effect:
The utility model change blade and wheel hub junction are along the shape of wheel hub axis projection, substitute the circular hub of generally using at present by design triangle shape wheel hub, on the basis that does not change fan vane type, so that the performance of fan gets a promotion, reach the requirement of high-efficient low-noise.
Description of drawings
Fig. 1 is the structural representation of axial fan described in the utility model;
Fig. 2 is the structural representation of the axial fan of air conditioner outdoor machine 35;
Fig. 3 is the structural representation of the axial fan of air conditioner outdoor machine 50;
Fig. 4 is the structural representation of the axial fan of air conditioner outdoor machine 72.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Take the axial fan of three blades as example:
With reference to shown in Figure 1, a kind of axial fan, comprise three blades 1 and wheel hub 2, wheel hub 2 is the equilateral triangle that the round and smooth processing of fillet is done on the summit along the contour shape of its axis projection, blade 1 is straightway with the junction of wheel hub 2 along wheel hub 2 axis projections, each blade 1 is installed in position on the wheel hub 2 corresponding to the limit of equilateral triangle wheel hub 2, and the axial fan whole matching effect of triangle wheel hub and three blades is better, so that the mechanical efficiency of flabellum is higher.
The place, summit of wheel hub 2 makes rounding and processes, and namely does the round and smooth processing of fillet, and wheel hub 2 is provided with three stiffening ribs 21, to strengthen the intensity of wheel hub 2.
A kind of air conditioner outdoor machine, the axial fan of employing said structure.
The below adopts circular hub and triangle wheel hub for air conditioner outdoor machine 35,50,72 axial fan, and outdoor unit air quantity, noise and power have been made Experimental Comparison, and test data is as follows.
Fig. 2～4 are respectively the structural representations that air conditioner outdoor machine 35,50,72 axial fan adopt the triangle wheel hub, adopt the comparative trial data of circular hub and triangle wheel hub corresponding outdoor unit air quantity, noise and power respectively shown in subordinate list 1～3 to air conditioner outdoor machine 35,50,72 axial fan.
Subordinate list 135 type Experimental Comparison data
Subordinate list 250 type Experimental Comparison data
Subordinate list 372 type Experimental Comparison data
Contrast by three kinds of type circular hub and triangle wheel hub air-conditioning outer machine test data can find out, under the identical blade operating mode, the triangle wheel hub is to improving air quantity, reducing noise and power input to machine has positive role.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (10)
1. an axial fan comprises blade and wheel hub, it is characterized in that: described blade and wheel hub junction along hub spindle to be projected as straightway.
2. described axial fan according to claim 1, it is characterized in that: the contour shape of vertically projection of described wheel hub is the equilateral triangle that the round and smooth processing of fillet is done on the summit.
3. described axial fan according to claim 2, it is characterized in that: described blade comprises three, the position of each blades installation on wheel hub is corresponding to the limit of equilateral triangle wheel hub.
4. described axial fan according to claim 2, it is characterized in that: described wheel hub is provided with at least one stiffening rib.
5. described axial fan according to claim 4, it is characterized in that: described stiffening rib is made as radiation strip or circle.
6. an air conditioner outdoor machine comprises axial fan, and described axial fan comprises blade and wheel hub, it is characterized in that: described blade and wheel hub junction along hub spindle to be projected as straightway.
7. described air conditioner outdoor machine according to claim 6, it is characterized in that: the contour shape of vertically projection of described wheel hub is the equilateral triangle that the round and smooth processing of fillet is done on the summit.
8. described air conditioner outdoor machine according to claim 7, it is characterized in that: described blade comprises three, the position of each blades installation on wheel hub is corresponding to the limit of equilateral triangle wheel hub.
9. described air conditioner outdoor machine according to claim 7, it is characterized in that: described wheel hub is provided with at least one stiffening rib.
10. described air conditioner outdoor machine according to claim 9, it is characterized in that: described stiffening rib is made as radiation strip or circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220490288.1U CN202833301U (en) | 2012-09-25 | 2012-09-25 | Axial fan and air conditioner outside machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220490288.1U CN202833301U (en) | 2012-09-25 | 2012-09-25 | Axial fan and air conditioner outside machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833301U true CN202833301U (en) | 2013-03-27 |
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ID=47945018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220490288.1U Expired - Lifetime CN202833301U (en) | 2012-09-25 | 2012-09-25 | Axial fan and air conditioner outside machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN202833301U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160025101A1 (en) * | 2013-04-04 | 2016-01-28 | Mitsubishi Electric Corporation | Propeller fan, blower device, and outdoor equipment |
| JPWO2017077575A1 (en) * | 2015-11-02 | 2018-08-02 | 三菱電機株式会社 | Blower, outdoor unit and refrigeration cycle device |
| CN114458616A (en) * | 2022-02-28 | 2022-05-10 | 联想(北京)有限公司 | Heat radiation fan |
-
2012
- 2012-09-25 CN CN201220490288.1U patent/CN202833301U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160025101A1 (en) * | 2013-04-04 | 2016-01-28 | Mitsubishi Electric Corporation | Propeller fan, blower device, and outdoor equipment |
| US9970454B2 (en) * | 2013-04-04 | 2018-05-15 | Mitsubishi Electric Corporation | Propeller fan, blower device, and outdoor equipment |
| JPWO2017077575A1 (en) * | 2015-11-02 | 2018-08-02 | 三菱電機株式会社 | Blower, outdoor unit and refrigeration cycle device |
| US10900360B2 (en) | 2015-11-02 | 2021-01-26 | Mitsubishi Electric Corporation | Fan, outdoor unit, and refrigeration cycle apparatus |
| CN114458616A (en) * | 2022-02-28 | 2022-05-10 | 联想(北京)有限公司 | Heat radiation fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210118 Address after: 266101 Haier Road, Qingdao hi tech Industrial Park, Shandong Province (inside Haier Industrial Park) Patentee after: Qingdao Haier Molds Co.,Ltd. Address before: 266100 Haier Industrial Park, No.1 Haier Road, gaokeyuan, Laoshan District, Qingdao City, Shandong Province Patentee before: QINGDAO HAIER MOLDS Co.,Ltd. Patentee before: HAIER Group Corp. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |