CN106958537A - Volute and air conditioner - Google Patents
Volute and air conditioner Download PDFInfo
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- CN106958537A CN106958537A CN201710317848.0A CN201710317848A CN106958537A CN 106958537 A CN106958537 A CN 106958537A CN 201710317848 A CN201710317848 A CN 201710317848A CN 106958537 A CN106958537 A CN 106958537A
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- spiral case
- raised
- air
- return
- sunk structure
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- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 33
- 241000237858 Gastropoda Species 0.000 claims description 65
- 210000000867 larynx Anatomy 0.000 claims description 64
- 230000005484 gravity Effects 0.000 claims description 17
- 230000009467 reduction Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 230000000994 depressogenic effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/4233—Fan casings with volutes extending mainly in axial or radially inward direction
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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
- F04D29/66—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
- F04D29/663—Sound attenuation
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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
- F04D29/66—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a volute and an air conditioner. The volute is arranged corresponding to the fan blade (5) and comprises a volute throat, a volute throat upstream wall surface (1) located on the upstream side of the volute throat and a volute throat downstream wall surface (2) located on the downstream side of the volute throat, wherein the volute throat upstream wall surface (1) is provided with anti-backflow protrusions (3), and the anti-backflow protrusions (3) protrude towards the fan blade (5). According to the volute and the air conditioner, the airflow inflow resistance of the heat exchanger side can be reduced, the airflow backflow resistance at the minimum position of the volute gap is increased, and turbulent kinetic energy and noise are reduced.
Description
Technical field
The invention belongs to air-conditioning technique field, and in particular to a kind of spiral case and air-conditioner.
Background technology
Air channel noise, common source air-flow vortex in impact of the air-flow in air channel to wall and fan blade rotary course
Speed and volution energy are larger after generation, especially diffusion process, the snail larynx in blower fan and spiral case region, airflow passes fan blade,
Noise produces larger.The noise of snail larynx position is eliminated, is usually appropriate lifting snail larynx gap, makes the air current flow stream of the position
Freely, vorticity and the reduction of air-flow tubulence energy.A kind of spiral case is disclosed in Japan Patent (publication number) JP2015092073A, the spiral case
In snail larynx gap, minimum position downstream area is provided with bump structure, and the air-flow that the patent claims can destroy the position is returned
Stream.
But found in actual test, the such scheme of Japan Patent can not only hinder the smooth flow further downstream of air-flow, also
The smooth dynamic pressure line of air-flow can be upset, aggravation is vortexed and causes noise to aggravate.
The content of the invention
Therefore, the technical problem to be solved in the present invention is to provide a kind of spiral case and air-conditioner, can reduce heat exchanger side
Air-flow flows into airflow reflux resistance, reduction tubulence energy and noise at resistance, increase snail larynx gap minimum.
In order to solve the above problems, the present invention provides a kind of spiral case, and correspondence fan blade is set, including snail larynx, on snail larynx
The snail larynx upstream wall and the snail larynx downstream wall positioned at snail larynx downstream of side are swum, it is convex that snail larynx upstream wall is provided with anti-return
Rise, anti-return is raised towards fan blade protrusion.
Preferably, anti-return projection includes being arranged on the shunting tip of the raised windward side of anti-return.
Preferably, the raised top of anti-return is 0.1 to 2mm apart from the height of snail larynx upstream wall where it.
Preferably, along the flow direction of air, anti-return projection misplaces on the wall of snail larynx upstream arranges.
Preferably, along the flow direction of air, the raised arrangement triangular in shape of any three adjacent anti-returns.
Preferably, the direction that the raised edge of anti-return is flowed perpendicular to air is arranged in rows, and multiple rows of anti-return is raised along air
Direction of flow interval setting, two adjacent row's anti-return projections shift to install.
Preferably, sunk structure is additionally provided with the wall of snail larynx upstream, sunk structure is located at the raised leeward side of anti-return.
Preferably, shunting tip has two to flowing the shunting shunted sideways, and two of shunting tip shunt sides
Face forms the first angle, and sunk structure is centrally located on the angular bisector of the first angle.
Preferably, the center of sunk structure is parallel with direction of flow with the raised center of gravity of the anti-return straight line constituted.
Preferably, the depth of sunk structure is 0.1 to 1mm.
Preferably, anti-return projection is triangular hill, and the tip of triangular hill is just to windward side.
Preferably, sunk structure is circle, and triangular hill meets following relation with sunk structure：
0<H1<D and 0<H3<H2；
Wherein, H1 is the adjacent nearest top triangular projection along along air-flow direction and the raised center of gravity of bottom triangle
Horizontal spacing, H2 for along along air-flow direction adjacent nearest top triangular it is raised with the raised center of gravity of bottom triangle
Longitudinal pitch, H3 are that the longitudinal pitch at triangular hill center of gravity and its rear end sunk structure center, d are along along air-flow direction
The raised center of gravity of two bottom triangles horizontal spacing.
Preferably, triangular hill also meets following relation with sunk structure：
0<H2<2d or R<2D1；
Wherein, the circular diameter that D1 is the bottom width of triangular hill structure, R is sunk structure.
According to another aspect of the present invention there is provided a kind of air-conditioner, including spiral case and fan blade, the spiral case is above-mentioned snail
Shell, spiral case is located at outside fan blade, and forms between fan blade air channel.
The spiral case that the present invention is provided, correspondence fan blade set, including snail larynx, the snail larynx upstream wall positioned at snail larynx upstream side and
Snail larynx downstream wall positioned at snail larynx downstream, snail larynx upstream wall is provided with anti-return projection, and anti-return is raised towards fan blade
Protrusion.Anti-return projection on the spiral case is located at the airflow reflux region of snail larynx upstream, can reduce the inflow of heat exchanger sidewind
Backflow resistance at resistance, the minimum clearance of the snail larynx formed between increase spiral case and fan blade, upsets the big whirlpool in the region, shape
Into the small-sized vortex street of more amount, so as to reduce the tubulence energy and noise in air flow process.
Brief description of the drawings
Fig. 1 is the gray-scale map of cross flow fan air current flow cloud atlas of the prior art；
Fig. 2 is the gray-scale map that cross flow fan snail larynx regional gas stream of the prior art flows to polar plot；
Fig. 3 is the structural representation of the spiral case of the embodiment of the present invention；
Fig. 4 is the air flow direction structure chart of the spiral case of the embodiment of the present invention；
Fig. 5 is raised and sunk structure the distributed architecture schematic diagram of anti-return of the spiral case of the embodiment of the present invention；
Fig. 6 is the structural representation of the air-conditioner of the embodiment of the present invention；
Fig. 7 is the air current flow structural representation between the spiral case and fan blade of the air-conditioner of the embodiment of the present invention.
Reference is expressed as in figure：
1st, snail larynx upstream wall；2nd, snail larynx downstream wall；3rd, anti-return is raised；4th, sunk structure；5th, fan blade；6th, spiral case；
7th, heat exchanger；At a, snail larynx gap minimum.
Embodiment
Above-mentioned Japan Patent, in actual application process, can not play a part of it and be claimed, on the contrary, from one
The problem of determining to serve aggravation air conditioner noises in degree, therefore, applicant is analyzed and studied to this, passes through Fig. 1 and Fig. 2
Experiment and analogue simulation can be seen that in the practical application of spiral case, snail larynx region backflow occur position it is not special at this
Position shown in sharp, and in the upstream region of snail larynx gap minimum position, and catchment is mainly the following current of single direction, can't
Cause larger backflow noise.If according to day should patent arrangement, can not only hinder the smooth flow further downstream of air-flow,
The smooth dynamic pressure line of air-flow can be also upset, aggravation is vortexed and causes noise to aggravate.Based on this, applicant proposed the skill of the present invention
Art scheme.
With reference to shown in referring to Fig. 3 to Fig. 7, embodiments in accordance with the present invention, spiral case correspondence fan blade 5 is set, and spiral case includes snail
Larynx, the snail larynx upstream wall 1 positioned at snail larynx upstream side and the snail larynx downstream wall 2 positioned at snail larynx downstream, snail larynx upstream wall 1
The side towards fan blade 5 be provided with anti-return projection 3.
Anti-return projection 3 on the spiral case is located at the airflow reflux region of snail larynx upstream, before snail larynx gap is not changed
Put, heat exchanger sidewind can be reduced and flowed at resistance, the minimum clearance of the snail larynx formed between increase spiral case and fan blade
Backflow resistance, upset the big whirlpool in the region, the small-sized vortex street of more amount formed, so as to reduce the turbulence in air flow process
Energy and noise.There is guiding upstream airflow to enter through-flow area, and the work for hindering downstream airflow to flow back at wherein snail larynx gap minimum a
With.
Preferably, anti-return projection 3 includes being arranged on the shunting tip of the windward side of anti-return projection 3.Anti-return projection 3
Shunting tip is set for surface side windward at it, shunting and guide functions can be played to the air-flow of entrance, reduce anti-return raised 3 pairs
The flow resistance of air-flow so that air can reduce sinuous flow and turbulent flow through anti-return projection 3 successfully towards snail larynx downstream flow
Generation, play the rectified action to air, improve the flow efficiency of air.The direction that shunting tip is flowed towards air is cut
Face is gradually reduced, and the two shunting sides of shunting tip windward can be to face directly, or cambered surface, when two shunting sides are
When facing directly, the included diversion angle between two shunting sides is, for example, 10 ° to 70 °, it is preferable that the included diversion angle is 30 °, Neng Goufang
Only included diversion angle it is too small and do not have effectively reduce air-flow flow into resistance effect, be also prevented from included diversion angle it is excessive and to air-flow
Excessive obstruction is caused, causes air-flow turbulent flow or sinuous flow occur.
The height of anti-return projection 3 is 0.1 to 2mm, on the top highly for anti-return projection 3 and the snail larynx where it
Swim the height between wall 1.Preferably, the height of anti-return projection 3 is 1mm, so as to avoid the excessive height of anti-return projection 3
And cause the spacing between anti-return projection 3 and fan blade 5 too small, excessive resistance, the minimum snail larynx gap location of influence are caused to air-flow
Static pressure distribution, the height for being also possible to prevent anti-return projection 3 is too low and can not play effective anti-return effect.
Ginseng is shown in Table 1：
Influence in table 1 for the raised 3 pairs of Kuanping Terrane values of anti-return emulates tables of data, from table 1 it follows that using anti-
After backflow projection 3, for the spiral case without bulge-structure, noise has obvious reduction, and vorticity value is significantly reduced, when
When the height of anti-return projection 3 is 1mm, noise reduction is optimal.
Preferably, along the flow direction of air, anti-return projection 3 misplaces arrangement on snail larynx upstream wall 1.Due to preventing back
Stream projection 3 misplaces on snail larynx upstream wall 1 arranges, and is hindered layer by layer therefore, it is possible to be formed so that the distributed area of anti-return projection 3
Domain is more reasonable, forms the effective Anti-backflow structure of more crypto set so that anti-return projection can more efficiently increase air-flow
The resistance flowed at the minimum of snail larynx gap to snail larynx upstream wall 1, is more efficiently upset by the anti-return projection 3 of dislocation
The larger vortex street in the region, forms the smaller vortex street of more amount, reduction tubulence energy and noise.
Preferably, along the flow direction of air, raised 3 arrangements triangular in shape of any three adjacent anti-returns.
Preferably, anti-return projection 3 is arranged in rows along perpendicular to air come the direction flowed, and multiple rows of anti-return projection 3 is along sky
The direction of flow interval setting of gas, two adjacent row's anti-return projections 3 are shifted to install.By anti-return projection 3 along perpendicular to sky
Gas is arranged in rows come the direction flowed, and while obstruction backflow is realized, can not cause the air-flow of the position axial not in fan blade
Know the notable asymmetry flowing of generation, it is to avoid air-flow causes blower fan surge and produce abnormal sound etc. to ask along through-flow fan blade axial movement
Topic.
In the present embodiment, sunk structure 4 is additionally provided with snail larynx upstream wall 1, it is raised that sunk structure 4 is located at anti-return
3 leeward side.After anti-return projection 3 upsets the larger vortex street of snail larynx upstream region, larger vortex street is resolved into a greater number
Smaller vortex street, smaller vortex street entered behind anti-return projection 3 in the region flow process of snail larynx upstream wall 1
In sunk structure 4, the resistance in smaller vortex street diffusion process is increased by sunk structure 4, so as to reach the purpose of rectifying noise-reduction.
Simulation result shows, after the volute structure, and Kuanping Terrane total value can reduce 0.8dB (A).
Preferably, shunting tip has two to flowing the shunting shunted sideways, and two of shunting tip shunt sides
Face forms the first angle, and sunk structure 4 is centrally located on the angular bisector of first angle.By the center of sunk structure 4
On the angular bisector for being arranged on the first angle, it can make it that two shunting sides are carried out for flowing to the air of sunk structure 4
Shunting so that the distribution of air flow entered after being shunted through shunting side from both sides in sunk structure 4 is more uniform, recessed
Fall into more thorough, the effect of raising rectifying noise-reduction that can be decomposed in structure 4.
Preferably, the center of sunk structure 4 is parallel with direction of flow with the center of gravity of anti-return projection 3 straight line constituted, can
To cause anti-return projection 3 and the position relationship of sunk structure 4 more reasonable, the flowing of air-flow can be made more smooth, shunted
More quick, distribution of air flow is more uniform, and anti-return projection 3 and the harmony of sunk structure 4 are more preferable, and further lifting is prevented back
Effect is flowed, rectifying noise-reduction effect is improved.
In the present embodiment, anti-return projection 3 is triangular hill, and the tip of triangular hill is just to windward side.It is preferred that
Ground, triangular hill is isosceles triangular hill, and two isosceles sides of isosceles triangular hill form windward side, so that
When air flows through the triangular hill, the shunting action formed is more balanced, and air flow distribution is more uniform.The anti-return
Projection 3 can also be cylinder, and the windward side of the cylinder is provided with triangle shunting tip, progress is flowed to air effective
Shunting.The anti-return projection 3 can also be the structure of other shapes.
Preferably, the center of sunk structure 4 is parallel with direction of flow with the center of gravity of the triangular hill straight line constituted.Due to
The center of sunk structure 4 is parallel with direction of flow with the center of gravity of the triangular hill straight line constituted, therefore, it can so that through triangle
The air-flow that is shunted of shape projection can be even into in the sunk structure 4 on rear side of triangular hill, and is entered from both sides
Air flow rate and kinetic energy in sunk structure 4 is substantially balanced so that sunk structure 4 can be more easily by big vortex street point
Solve as multiple small vortex streets, receiving and sluggish small vortex street, the small vortex street after obstruction is decomposed spreads and enters through-flow area, raising
The flow effect of air-flow, and the vortex street size after decomposing is more uniform, decomposition efficiency is higher, can more efficient the reduction thus
The tubulence energy and noise of generation.
Preferably, the depth of sunk structure 4 is 0.1 to 1mm.It is highly preferred that the depth of sunk structure 4 is 0.5mm, can be with
The depression of more excellent depth is improved, discomposing effect of the sunk structure 4 to large-scale vortex street is improved, improves the noise reduction of spiral case.
When as shown in table 2, to use height raised for 1mm anti-return, the influence after sunk structure to Kuanping Terrane value
Emulate tables of data
From Table 2, it can be seen that after anti-return height of projection is determined, after increase sunk structure, vorticity value has obvious drop
Low, and cup depth reached after certain numerical value, noise also has obvious reduction, particularly cup depth when being 0.5mm, noise reduction
It is more preferably obvious.
Therefore, after using the raised structure being engaged with sunk structure of anti-return, its rectifying noise-reduction effect is more excellent.
Preferably, sunk structure 4 is circle, and triangular hill meets following relation with sunk structure 4：
0<H1<D and 0<H3<H2；
Wherein, H1 is the adjacent nearest top triangular projection along along air-flow direction and the raised center of gravity of bottom triangle
Horizontal spacing, H2 for along along air-flow direction adjacent nearest top triangular it is raised with the raised center of gravity of bottom triangle
Longitudinal pitch, H3 are that the longitudinal pitch at triangular hill center of gravity and the center of its rear end sunk structure 4, d are along air-flow direction
On the raised center of gravity of two bottom triangles horizontal spacing.
0<H1<D, which is to ensure that triangular hill is combined with depression, can stagger the respective combination between adjacent row, increasing
Add-back flow resistance basal area, reaches the purpose for effectively hindering backflow.
0<H2<2d is and 0<H1<D is combined, allow three groups of nearest triangular hills with depression combine can be formed between
Triangle between isosceles right triangle and equilateral triangle, the combination can largely utilization space, i.e., in limited sky
Interior many arrangements of trying one's best, which are eliminated the noise, to be combined.
Triangular hill can also meet following relation with sunk structure 4：0<H2<2d or R<2D1；Wherein, D1 is triangle
The bottom width of shape bulge-structure, the circular diameter that R is sunk structure 4, wherein bottom refer to where the leeward side of triangular hill
Base.
0<H3<H2 is in order to ensure circular depressed structure and the distance of triangular hill structure back side are suitable, if distance
Too remote, tiny vortex street vortex street enters not going at all, if apart from too near, easily producing howling with bulge-structure interaction.
R<2D1 is the tip for touching adjacent protrusion structure in order to avoid circular depressed, it is to avoid between circular depressed and tip
Howling is produced, rectifying noise-reduction effect is improved.
The structure enables to the arrangement of triangular hill and sunk structure 4 more reasonable, to the discomposing effect of vortex street more
It is good, and can more efficiently hinder downstream airflow upstream to flow back, better noise elimination fit structure group is formed, further
Improve the noise reduction of spiral case.
Sunk structure can also be the depression of oval depression, triangular shaped recess, rectangular depression either other shapes.
When sunk structure is oval depression, R is the long axis length of oval depression；When sunk structure is rectangle, R is square
Shape base；When sunk structure is triangular shaped recess, R is triangle base, wherein each base is each meant positioned at sunk structure
The side of leeward side.
The operation principle of the spiral case of the present invention is as follows：When air-flow enters snail larynx region from the external world, the air-flow close to fan blade 5 is suitable
Profit enters through-flow area through snail larynx molded line, passes through triangular hill close to the region of snail larynx wall and enters snail larynx region,
The backflow that snail larynx Minimum Area and local upstream are produced is run into triangular hill structure, hindered in upstream evolution
Backflow continues up trip development, has interrupted the large-scale vortex street in snail larynx region, and the small-sized vortex street of generation is returned and is collected entrance
In circular depressed structure, small-sized vortex street is confined to spread in sunk structure and gradually reduces energy, finally disappears, it is achieved thereby that
The reduction of snail larynx region noise.
Embodiments in accordance with the present invention, air-conditioner includes spiral case 6 and fan blade 5, and the spiral case 6 is above-mentioned spiral case, spiral case cover
It is located at outside fan blade 5, and air channel is formed between fan blade 5.
Air-conditioner also includes heat exchanger 7, and the formation of heat exchanger 7 is recessed, and spiral case 6 and fan blade 5 are arranged on what heat exchanger 7 was formed
In depression.
Those skilled in the art is it is easily understood that on the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent and improvement made within refreshing and principle etc., should be included within the scope of the present invention.With
Only it is the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
On the premise of departing from the technology of the present invention principle, some improvement and modification can also be made, these are improved and modification also should be regarded as this
The protection domain of invention.
Claims (14)
1. a kind of spiral case, correspondence fan blade (5) is set, it is characterised in that including snail larynx, on the snail larynx of the snail larynx upstream side
Wall (1) and the snail larynx downstream wall (2) positioned at the snail larynx downstream are swum, the snail larynx upstream wall (1), which is provided with, prevents back
Stream is raised (3), and the anti-return raised (3) protrudes towards the fan blade (5).
2. spiral case according to claim 1, it is characterised in that the anti-return raised (3) is convex including being arranged on anti-return
Play the shunting tip of the windward side of (3).
3. spiral case according to claim 1, it is characterised in that the top of the anti-return raised (3) is apart from snail where it
The height of larynx upstream wall (1) is 0.1 to 2mm.
4. spiral case according to claim 1, it is characterised in that along the flow direction of air, the anti-return raised (3) exists
Misplace arrangement on the snail larynx upstream wall (1).
5. spiral case according to claim 4, it is characterised in that along the flow direction of air, any three adjacent described
Anti-return projection (3) arrangement triangular in shape.
6. spiral case according to claim 4, it is characterised in that what the anti-return raised (3) edge was flowed perpendicular to air
Direction is arranged in rows, direction of flow interval setting of the multiple rows of anti-return raised (3) along air, is prevented back described in two adjacent rows
Stream raised (3) is shifted to install.
7. the spiral case according to any one of claim 2 to 6, it is characterised in that also set on the snail larynx upstream wall (1)
Sunk structure (4) is equipped with, the sunk structure (4) is located at the leeward side of the anti-return raised (3).
8. spiral case according to claim 7, it is characterised in that the shunting tip has two to flowing what is shunted
Shunting side, two shunting sides at the shunting tip form the first angle, and the sunk structure (4) is centrally located at described
On the angular bisector of first angle.
9. spiral case according to claim 8, it is characterised in that the center of the sunk structure (4) and the anti-return are convex
The straight line for playing the center of gravity composition of (3) is parallel with direction of flow.
10. spiral case according to claim 7, it is characterised in that the depth of the sunk structure (4) is 0.1 to 1mm.
11. spiral case according to claim 7, it is characterised in that the anti-return raised (3) is triangular hill, described
The tip of triangular hill is just to windward side.
12. spiral case according to claim 11, it is characterised in that the sunk structure (4) is circle, the triangle is convex
Rise and meet following relation with the sunk structure (4)：
0<H1<D and 0<H3<H2；
Wherein, H1 is the raised horizontal stroke with the raised center of gravity of bottom triangle of adjacent nearest top triangular along along air-flow direction
It is the raised longitudinal direction with the raised center of gravity of bottom triangle of adjacent nearest top triangular along along air-flow direction to spacing, H2
Spacing, H3 are that the longitudinal pitch at triangular hill center of gravity and its rear end sunk structure (4) center, d are along along air-flow direction
The raised center of gravity of two bottom triangles horizontal spacing.
13. spiral case according to claim 12, it is characterised in that the triangular hill is gone back with the sunk structure (4)
Meet following relation：
0<H2<2d or R<2D1；
Wherein, the circular diameter that D1 is the bottom width of triangular hill structure, R is sunk structure (4).
14. a kind of air-conditioner, including spiral case (6) and fan blade (5), it is characterised in that the spiral case (6) is claim 1 to 13
Any one of spiral case, the spiral case is located at the fan blade (5) outside, and forms air channel between the fan blade (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710317848.0A CN106958537B (en) | 2017-05-08 | 2017-05-08 | Volute and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710317848.0A CN106958537B (en) | 2017-05-08 | 2017-05-08 | Volute and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106958537A true CN106958537A (en) | 2017-07-18 |
| CN106958537B CN106958537B (en) | 2023-06-06 |
Family
ID=59482971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710317848.0A Active CN106958537B (en) | 2017-05-08 | 2017-05-08 | Volute and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106958537B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036485A (en) * | 2018-01-15 | 2018-05-15 | 奥克斯空调股份有限公司 | Air channel structure and air-conditioning |
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| CN106288265A (en) * | 2015-05-25 | 2017-01-04 | 珠海格力电器股份有限公司 | Air duct assembly and air conditioner |
| CN207111521U (en) * | 2017-05-08 | 2018-03-16 | 珠海格力电器股份有限公司 | Volute and air conditioner |
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| CN1900533A (en) * | 2005-07-21 | 2007-01-24 | 斯奈克玛 | Vibration damping elements for an axial holding ring of turbomachine fan blades |
| JP2011122517A (en) * | 2009-12-10 | 2011-06-23 | Mitsubishi Heavy Ind Ltd | Multi-blade centrifugal fan and air conditioner using the same |
| CN102297141A (en) * | 2010-06-24 | 2011-12-28 | 江门市地尔汉宇电器股份有限公司 | Small centrifugal water pump with impeller directly driven by internal rotor motor |
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| JP2015092073A (en) * | 2013-09-30 | 2015-05-14 | ダイキン工業株式会社 | Cross-flow fan, and indoor unit of air conditioner provided with the same |
| CN106288265A (en) * | 2015-05-25 | 2017-01-04 | 珠海格力电器股份有限公司 | Air duct assembly and air conditioner |
| CN207111521U (en) * | 2017-05-08 | 2018-03-16 | 珠海格力电器股份有限公司 | Volute and air conditioner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108036485A (en) * | 2018-01-15 | 2018-05-15 | 奥克斯空调股份有限公司 | Air channel structure and air-conditioning |
| CN108036485B (en) * | 2018-01-15 | 2023-07-18 | 奥克斯空调股份有限公司 | Air duct structure and air conditioner |
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| Publication number | Publication date |
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| CN106958537B (en) | 2023-06-06 |
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