CN105823144A - Air conditioner, fan and grating - Google Patents
Air conditioner, fan and grating Download PDFInfo
- Publication number
- CN105823144A CN105823144A CN201610332708.6A CN201610332708A CN105823144A CN 105823144 A CN105823144 A CN 105823144A CN 201610332708 A CN201610332708 A CN 201610332708A CN 105823144 A CN105823144 A CN 105823144A
- Authority
- CN
- China
- Prior art keywords
- grid
- angle
- fan
- termination
- air outlet
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
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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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
-
- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/40—Vibration or noise prevention at outdoor units
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a grating. The grating comprises circumferential ribs which are coiled outwards circle by circle in a spiral manner with the center of the grating as the start point to the outer edge of the grating, and the rotation direction of the circumferential ribs is the same as the rotation direction of blades of a fan. Air flow is driven by the blades of the fan to flow forwards in a spiral manner, the disclosed grating simulates the spiral state when the air flow flows and the rotation direction of the circumferential ribs is the same as the rotation direction of the blades of the fan, and therefore the air flow can flow out of spiral channels formed by the circumferential ribs, the probability that the air flow collides with the grating is effectively lowered, noise of the fan is effectively reduced, and performance of the fan is improved. The invention further discloses the fan with the grating and an air conditioner with the fan.
Description
Technical field
The present invention relates to home appliance manufacturing technology field, especially relate to a kind of air-conditioning, fan and grid.
Background technology
As the supplier of artificial wind, it is extremely wide that fan uses in daily life, the most directly provides the stand fan of artificial wind, or in order to realize the radiator fan of cold-producing medium and external environment heat exchange, is the most all seen everywhere.
In order to avoid foreign body enters into inside fan, simultaneously in order to personnel are formed effectively protection, the outside of flabellum is all covered with grid (fan guard).Current grid generally includes radial ribs and circumference rib, and circumference rib is typically with the central point of grid as starting point, to be extended to the marginal position of grid the most radially to the multiple concentric circle of external diffusion, radial ribs by the central point of grid.
Enter inside fan although current grid can be prevented effectively from foreign body, and personnel are defined effectively protection, but this kind of grid brings high resistance to the air-out of fan, the air-flow of flabellum blowout can collide with the rib on grid, thus its water conservancy diversion effect is poor, flabellum position can produce the biggest noise.
Therefore, how can effectively reduce the grid resistance to air-flow, be that current those skilled in the art need badly and solve the technical problem that to reduce fan noise.
Summary of the invention
An object of the present invention is to provide a kind of grid, in order in use can reduce the grid resistance to air-flow, thus reduce fan noise, promotes fan performance.
Another object of the present invention also resides in a kind of fan using above-mentioned grid of offer；
Another object of the present invention also resides in a kind of air-conditioning using said fans of offer.
For reaching above-mentioned purpose, grid disclosed in this invention includes circumference rib, described circumference rib is with the center of described grid as starting point, and outwards from coil to coil is coiling to the outer rim of described grid and terminates in the shape of a spiral, and the rotation direction of described circumference rib is identical with the flabellum direction of rotation of fan.
Preferably, also include with the center of described grid as starting point, and the many radial ribs that the outer rim radially extended radially to described grid terminates.
Preferably, described radial ribs on described grid with centrosymmetry formal distribution, and the center that the symmetrical centre of described radial ribs is described grid.
Preferably, being air outlet plane with the plane of the central axis of described grid, described circumference rib has initial angle α in its original position and described air outlet plane1, in its final position and described air outlet plane, there is termination angle β1, and angle value is by described initial angle α1To described termination angle β1It is gradually reduced.
Preferably, described initial angle and described termination angle meet: 80 °≤α1≤ 90 °, 50 °≤α2≤85°。
Preferably, described initial angle α1It is decreased to described termination angle α2During, the reduction speed of angle increases with the increase of described circumference rib development length.
Preferably, being air outlet plane with the plane of the central axis of described grid, described radial ribs has initial angle β in its original position and described air outlet plane1, in its final position and described air outlet plane, there is termination angle β2, and angle value is by described initial angle β1To described termination angle β2It is gradually reduced.
Preferably, described initial angle and described termination angle meet: 75 °≤β1≤ 90 °, 40 °≤β2≤70°。
Preferably, described initial angle β1It is decreased to described termination angle β2During, the reduction speed of angle increases with the increase of described radial ribs development length.
Preferably, described grid is the dome shape that center is protruding.
Preferably, described in two adjacent rings circumference rib between spacing be not more than 9mm.
Fan disclosed in this invention, is provided with grid, and described grid is grid disclosed in above-mentioned any one.
Air-conditioning disclosed in this invention, including off-premises station and the radiator fan being disposed in the outdoor on machine, this radiator fan is fan disclosed above.
As can be seen from the above technical solutions, the grid that disclosed in this invention, circumference rib is with the center of grid as starting point, and outwards from coil to coil is coiling to the outer rim of grid and terminates in the shape of a spiral, and the rotation direction of circumference rib is identical with the flabellum direction of rotation of fan.
Due under the drive of electric fan, air-flow is spirally flow forward, and the spiral status that the grid that disclosed in this invention is when simulating air current flow, and the rotation direction of circumference rib is identical with the flabellum direction of rotation of fan, therefore air-flow just can flow out in the helical channel that circumference rib is formed, effectively subtract and reduce the probability that air-flow collides with grid, the most just effectively reduce the noise of fan, improve the performance of fan.
Fan disclosed in this invention is owing to have employed above-mentioned grid, and therefore this fan has the advantage that noise is little, performance is high equally, and air-conditioning is owing to have employed said fans, thus also should have attendant advantages.
Accompanying drawing explanation
Fig. 1 is the structural representation of grid disclosed in the embodiment of the present invention；
Fig. 2 is the angle schematic diagram of circumference rib and air outlet plane；
Fig. 3 is the angle schematic diagram of radial ribs and air outlet plane.
Wherein, 1 is circumference rib, and 2 is radial ribs, and 3 is air-out direction, and 4 is air outlet plane, and α i is the angle of circumference rib and air outlet plane, and β i is the angle of radial ribs and air outlet plane.
Detailed description of the invention
One of core of the present invention is to provide a kind of grid, in order in use can reduce the grid resistance to air-flow, thus reduce fan noise, promotes fan performance.
Another core of the present invention also resides in a kind of fan with above-mentioned grid of offer；
Another core of the present invention also resides in a kind of air-conditioning using said fans of offer.
In order to make those skilled in the art be more fully understood that the present invention program, the present invention is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings.
Refer to Fig. 1, grid disclosed in the embodiment of the present invention is actual can play Noise Reduction, it is properly termed as noise reduction grid, this grid includes circumference rib 1, and circumference rib 1 is with the center of grid as starting point, outwards from coil to coil is coiling to the outer rim termination of grid in the shape of a spiral, thus the rotation direction defining the circumferential rib 1 in helical form grid, and this grid is identical with the flabellum direction of rotation of fan.
Needing to illustrate, in above-described embodiment, the rotation direction of circumference rib 1 specifically refers to carry out the direction of rotation during coiled coil after circumference rib 1 is drawn by the central point of grid.
Due under the drive of electric fan, air-flow is spirally flow forward, and the spiral status that the grid that disclosed in this invention is when just simulating air current flow, and the rotation direction of circumference rib 1 is identical with the flabellum direction of rotation of fan, therefore air-flow just can flow out in the helical channel that circumference rib 1 is formed, effectively subtract and reduce the probability that air-flow collides with grid, the most just effectively reduce the noise of fan, improve the performance of fan.
Further, as shown in fig. 1, on the basis of above-described embodiment, the grid in the present embodiment also has many radial ribs 2, and radial ribs 2 is with the center of grid as starting point, and the outer rim radially extended radially to grid terminates.After increasing radial ribs 2, can effectively promote the bulk strength of grid, thus improve the service life of grid.
It is understandable that, the intensity that grid is overall not only can be impacted by the arrangement mode of radial ribs 2, but also the wind resistance that goes out of fan can be produced impact, the formal distribution being centrosymmetric on grid for the radial ribs 2 in this present embodiment, and the symmetrical centre of radial ribs 2 is the center of grid.
It is true that owing to, under the drive of flabellum, air-flow is when arriving grid, not parallel with the central shaft of grid, but and between the central shaft of grid, there is angle, in order to air-flow is guided the most accurately, grid is also further improved by the present embodiment.In the present embodiment, the plane with the central axis of grid is referred to as air outlet plane 4 by us, and circumference rib 1 has initial angle α between its original position and air outlet plane 41, there is between its final position and air outlet plane 4 termination angle α2, and angle value is by described initial angle α1To described termination angle α2It is gradually reduced.This makes whole grid be presented flare form by center to surrounding.According to research, the least the closer to the angle between air-flow and the air outlet plane 4 of the marginal position of grid, thus the variation tendency of its circumference rib 1 of grid disclosed in the present embodiment just air-out direction 3 with air-flow changes and adapts, thus can ensure that air-flow flows out more smoothly, thus reduce fan noise further, improve the performance of fan.
When experimental and theoretical computation, circumference rib 1 and the initial angle of air outlet plane 4 and termination angle meet following condition, the noise reduction of grid is the most obvious, 80 ° concrete≤α1≤ 90 °, 50 °≤α2≤ 85 °, according to fan model and the difference of flabellum shape, initial angle and termination angle can be carried out adapt, initiate angle α the most as required180 °, 83 ° or 90 ° can be used, terminate angle α250 °, 65 °, 83 ° or 85 ° etc. can be used.
Further, by initial angle α1It is decreased to terminate angle α2During, the reduction speed of angle increases, the actual change rule of this air-flow of can fitting further with the increase of circumference rib 1 development length, thus reaches to reduce further the purpose of fan noise.
Owing to radial ribs 2 also can affect greatly going out wind resistance, in order to reduce the impact that air-out is caused by radial ribs 2 as far as possible, in the present embodiment, radial ribs 2 has initial angle β between its original position and air outlet plane 41, there is between its final position and air outlet plane 4 termination angle β2, and angle value is by described initial angle β1To described termination angle β2It is gradually reduced.Owing to the angle between air-flow and the air outlet plane 4 of the marginal position the closer to grid is the least, thus the variation tendency of its radial ribs 2 of grid disclosed in the present embodiment the most just air-out direction 3 with air-flow changes and adapts, thus can ensure that air-flow flows out more smoothly.
When experimental and theoretical computation, radial ribs 2 and the initial angle of air outlet plane 4 and termination angle meet following condition, the noise reduction of grid is the most obvious, 75 ° concrete≤β1≤ 90 °, 40 °≤β2≤ 70 °, according to fan model and the difference of flabellum shape, initial angle and termination angle can be carried out adapt, initiate angle β the most as required176 °, 85 ° or 90 ° can be used, terminate angle β240 °, 50 ° or 70 ° etc. can be used.
Further, by initial angle β1It is decreased to terminate angle β2During, the reduction speed of angle increases, the actual change rule of this air-flow of can fitting further with the increase of radial ribs 2 development length, thus reaches to reduce further the purpose of fan noise.
Meanwhile, when on the basis of electric fan, the grid provided in above-described embodiment can centered by the protruding dome shape in position, this can effectively increase the axial spacing between the flabellum of fan and grid, thus reduce and stream turbulence level, improve that levelling pliable, and finally reduce fan noise.
Owing to the very important effect of grid also resides in, personnel forming effectively protection, it is to avoid personnel's finger stretches into inside fan injured, in grid disclosed in this present embodiment, the spacing between two adjacent rings circumference rib 1 is advisable with no more than 9mm.
In addition, also disclosing a kind of fan in the present invention, this fan is provided with grid, and grid is grid disclosed in above-mentioned any one embodiment.
Owing to have employed grid disclosed in above-described embodiment, thus this fan should have the corresponding technological merit of above-mentioned grid concurrently, no longer repeats this in present specification.
Also disclosing a kind of air-conditioning in the present invention, this air-conditioning includes off-premises station and the radiator fan being disposed in the outdoor on machine, and this radiator fan is fan disclosed in above-described embodiment.
In like manner, owing to have employed said fans, therefore this air-conditioning should have the corresponding technological merit of said fans concurrently, the most no longer repeats this in present specification.
Above air-conditioning provided by the present invention, fan and grid are described in detail.Principle and the embodiment of the present invention are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention.It should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to the present invention is carried out some improvement and modification, these improve and modify in the protection domain also falling into the claims in the present invention.
Claims (13)
1. a grid, including circumference rib (1), it is characterized in that, described circumference rib (1) is with the center of described grid as starting point, outwards from coil to coil is coiling to the outer rim termination of described grid in the shape of a spiral, and the rotation direction of described circumference rib (1) is identical with the flabellum direction of rotation of fan.
Grid the most according to claim 1, it is characterised in that also include with the center of described grid as starting point, and the many radial ribs (2) that the outer rim radially extended radially to described grid terminates.
Grid the most according to claim 2, it is characterised in that described radial ribs (2) on described grid with centrosymmetry formal distribution, and the center that symmetrical centre is described grid of described radial ribs (2).
Grid the most according to claim 1, it is characterized in that, being air outlet plane (4) with the plane of the central axis of described grid, described circumference rib (1) has initial angle α its original position and described air outlet plane (4)1, its final position and described air outlet plane (4), there is termination angle α2, and angle value is by described initial angle α1To described termination angle α2It is gradually reduced.
Grid the most according to claim 4, it is characterised in that described initial angle and described termination angle meet: 80 °≤α1≤ 90 °, 50 °≤α2≤85°。
Grid the most according to claim 4, it is characterised in that described initial angle α1It is decreased to described termination angle α2During, the reduction speed of angle increases with the increase of described circumference rib (1) development length.
Grid the most according to claim 2, it is characterized in that, being air outlet plane (4) with the plane of the central axis of described grid, described radial ribs (2) has initial angle β its original position and described air outlet plane (4)1, its final position and described air outlet plane (4), there is termination angle β2, and angle value is by described initial angle β1To described termination angle β2It is gradually reduced.
Grid the most according to claim 7, it is characterised in that described initial angle and described termination angle meet: 75 °≤β1≤ 90 °, 40 °≤β2≤70°。
Grid the most according to claim 7, it is characterised in that described initial angle β1It is decreased to described termination angle β2During, the reduction speed of angle increases with the increase of described radial ribs (2) development length.
10., according to the grid described in claim 1-9 any one, described grid is the dome shape that center is protruding.
11. according to the grid described in claim 1-9 any one, it is characterised in that described in two adjacent rings, the spacing between circumference rib (1) is not more than 9mm.
12. 1 kinds of fans, are provided with grid, it is characterised in that described grid is the grid as described in claim 1-11 any one.
13. 1 kinds of air-conditionings, including off-premises station and the radiator fan being arranged on described off-premises station, it is characterised in that described radiator fan is fan as claimed in claim 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610332708.6A CN105823144A (en) | 2016-05-18 | 2016-05-18 | Air conditioner, fan and grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610332708.6A CN105823144A (en) | 2016-05-18 | 2016-05-18 | Air conditioner, fan and grating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105823144A true CN105823144A (en) | 2016-08-03 |
Family
ID=56530727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610332708.6A Pending CN105823144A (en) | 2016-05-18 | 2016-05-18 | Air conditioner, fan and grating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105823144A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107184146A (en) * | 2017-06-26 | 2017-09-22 | 美的集团股份有限公司 | Dust catcher |
| CN108036433A (en) * | 2018-01-05 | 2018-05-15 | 奥克斯空调股份有限公司 | Fan blade guard, air-supply arrangement and air-conditioning |
| CN108954761A (en) * | 2018-07-06 | 2018-12-07 | 珠海格力电器股份有限公司 | A kind of air-inlet grille, air intake assembly and its air purifier |
| CN109790985A (en) * | 2016-10-05 | 2019-05-21 | 三菱电机株式会社 | The outdoor unit of air conditioner |
| CN111102656A (en) * | 2020-01-10 | 2020-05-05 | 珠海格力电器股份有限公司 | Double-blade fan system of air conditioner outdoor unit, control method and air conditioner unit |
| CN111577629A (en) * | 2019-02-18 | 2020-08-25 | 利士文时计工业株式会社 | Fan with cooling device |
| CN112136005A (en) * | 2018-05-22 | 2020-12-25 | 三菱电机株式会社 | Air blower and air conditioner |
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| JPH06257795A (en) * | 1993-03-02 | 1994-09-16 | Matsushita Electric Ind Co Ltd | Front grill for air conditioner outdoor device |
| CN201155841Y (en) * | 2007-12-15 | 2008-11-26 | 广东申菱空调设备有限公司 | Air conditioner air outlet machine cover |
| CN101398215A (en) * | 2007-09-30 | 2009-04-01 | 乐金电子(天津)电器有限公司 | Air outlet grate of dehumidifier |
| CN203100016U (en) * | 2013-02-26 | 2013-07-31 | 天津市鑫大远金属制品有限公司 | Air conditioner outdoor unit protective mesh cover |
| CN103573678A (en) * | 2013-11-13 | 2014-02-12 | 广东美的环境电器制造有限公司 | Fan guard and electric fan |
| CN205137740U (en) * | 2015-11-09 | 2016-04-06 | 广东美的暖通设备有限公司 | A air conditioner that is used for top cap screen panel of air conditioner and contains it |
| CN105508303A (en) * | 2016-01-07 | 2016-04-20 | 珠海格力电器股份有限公司 | Fan grid and fan with same |
| CN205619469U (en) * | 2016-05-18 | 2016-10-05 | 珠海格力电器股份有限公司 | Air conditioner, fan and grid |
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2016
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| JPH06257795A (en) * | 1993-03-02 | 1994-09-16 | Matsushita Electric Ind Co Ltd | Front grill for air conditioner outdoor device |
| CN101398215A (en) * | 2007-09-30 | 2009-04-01 | 乐金电子(天津)电器有限公司 | Air outlet grate of dehumidifier |
| CN201155841Y (en) * | 2007-12-15 | 2008-11-26 | 广东申菱空调设备有限公司 | Air conditioner air outlet machine cover |
| CN203100016U (en) * | 2013-02-26 | 2013-07-31 | 天津市鑫大远金属制品有限公司 | Air conditioner outdoor unit protective mesh cover |
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| CN205137740U (en) * | 2015-11-09 | 2016-04-06 | 广东美的暖通设备有限公司 | A air conditioner that is used for top cap screen panel of air conditioner and contains it |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109790985A (en) * | 2016-10-05 | 2019-05-21 | 三菱电机株式会社 | The outdoor unit of air conditioner |
| CN109790985B (en) * | 2016-10-05 | 2021-08-06 | 三菱电机株式会社 | Outdoor unit of air conditioner |
| CN107184146A (en) * | 2017-06-26 | 2017-09-22 | 美的集团股份有限公司 | Dust catcher |
| CN108036433A (en) * | 2018-01-05 | 2018-05-15 | 奥克斯空调股份有限公司 | Fan blade guard, air-supply arrangement and air-conditioning |
| CN112136005A (en) * | 2018-05-22 | 2020-12-25 | 三菱电机株式会社 | Air blower and air conditioner |
| CN108954761A (en) * | 2018-07-06 | 2018-12-07 | 珠海格力电器股份有限公司 | A kind of air-inlet grille, air intake assembly and its air purifier |
| CN108954761B (en) * | 2018-07-06 | 2023-11-24 | 珠海格力电器股份有限公司 | Air inlet grille, air inlet assembly and air purifier thereof |
| CN111577629A (en) * | 2019-02-18 | 2020-08-25 | 利士文时计工业株式会社 | Fan with cooling device |
| CN111102656A (en) * | 2020-01-10 | 2020-05-05 | 珠海格力电器股份有限公司 | Double-blade fan system of air conditioner outdoor unit, control method and air conditioner unit |
| CN111102656B (en) * | 2020-01-10 | 2023-11-10 | 珠海格力电器股份有限公司 | Double-fan-blade fan system of air conditioner outdoor unit, control method and air conditioner unit |
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Application publication date: 20160803 |