CN108412807A - Spiral case, fan assembly and air conditioner - Google Patents
Spiral case, fan assembly and air conditioner Download PDFInfo
- Publication number
- CN108412807A CN108412807A CN201810289084.3A CN201810289084A CN108412807A CN 108412807 A CN108412807 A CN 108412807A CN 201810289084 A CN201810289084 A CN 201810289084A CN 108412807 A CN108412807 A CN 108412807A
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- Prior art keywords
- boss
- spiral case
- wall surface
- flow
- snail
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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
- F04D29/40—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
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of spiral case of present invention offer, fan assembly and air conditioner.The spiral case includes snail throat (1), wind path wall wall surface where snail throat (1) is the first wall surface (2), the boss (3) for protruding from the first wall surface (2) is provided on first wall surface (2), boss (3) extends at snail throat (1) along air current flow direction, boss (3) is the first width along the width of the axial direction of spiral case, first wall surface (2) is the second width along the width of the axial direction of spiral case, and the first width is less than the second width.Spiral case according to the present invention, can reduce air stream turbulence kinetic energy, and noise reduction is preferable.
Description
Technical field
The invention belongs to air-conditioning technique fields, and in particular to a kind of spiral case, fan assembly and air conditioner.
Background technology
Domestic air conditioning increasingly payes attention to the noise problem of air-conditioning during exploitation at present, and air conditioner noises is main next
Source is exactly the cross flow fan of interior machine.Therefore, air conditioner noises are reduced, the air-conditioning for developing more low noise needs to pass through from exploitation low noise
Flow fan is started with.But the air quantity of cross flow fan is two closely bound up parameters with noise, existing air-conditioning is promoting air quantity
Meanwhile good control noise is tended not to, it is main although being directed to the noise reduction technology in cross flow fan air duct now with some
It concentrates on changing in the volute tongue structure of air duct, the air stream turbulence kinetic energy for flowing through snail larynx is larger, and noise reduction is poor.
Invention content
Therefore, the technical problem to be solved in the present invention is to provide a kind of spiral case, fan assembly and air conditioner, can reduce
Air stream turbulence kinetic energy, noise reduction are preferable.
To solve the above-mentioned problems, the present invention provides a kind of spiral case, including snail throat, the wind path wall wall surface where snail throat
For the first wall surface, it is provided with the boss for protruding from the first wall surface on the first wall surface, boss is from snail throat along air-flow flowing side
To extension, boss is the first width along the width of the axial direction of spiral case, and the first wall surface is along the width of the axial direction of spiral case
Second width, the first width are less than the second width.
Preferably, along the axial direction of spiral case, between the first side edge of boss and the first side edge of the first wall surface
With predetermined space, there is predetermined space between the second side edge of boss and the second side edge of the first wall surface.
Preferably, boss is provided with the first guiding surface close to snail throat side, and the first guiding surface is from boss far from
The top surface of one wall surface extends to the first wall surface；And/or boss is provided with the second guiding surface far from snail throat side, second leads
The first wall surface is extended to inclined-plane from top surface of the boss far from the first wall surface.
Preferably, the first wall surface includes curved sections and planar section, curved sections and planar section along air current flow direction successively
Setting, boss are arranged in curved sections.
Preferably, the first guiding surface is plane, cancave cambered surface or convex globoidal；And/or second guiding surface be plane, recessed
Cambered surface or convex globoidal.
Preferably, when the first guiding surface be plane when, the angle between the first guiding surface and the first wall surface be 10 ° extremely
15°；And/or when the second guiding surface is plane, the angle between the second guiding surface and the first wall surface is 10 ° to 15 °.
Preferably, the first guiding surface extends from snail throat away from the direction of boss；And/or second be oriented to it is oblique
Face extends to curved sections and the intersection location of planar section from the top surface of boss.
Preferably, along the flow direction of air-flow, boss is cross-section structure.
Preferably, the rectangular cross-section of boss or trapezoidal.
Preferably, when the rectangular cross-section of boss, in the section of boss, the width of boss is 9 to 11mm, boss protrusion
The height of first wall surface is 0.9 to 1.1mm.
Preferably, boss protrudes from the highly consistent of the first wall surface, and along air current flow direction, the sectional area of boss is passed
Subtract.
Preferably, boss is multiple, and multiple boss are arranged along the axis direction interval of spiral case.
In accordance with a further aspect of the present invention, a kind of fan assembly, including wind turbine and above-mentioned spiral case, wind turbine setting are provided
In spiral case.
Preferably, wind turbine is cross flow fan, and cross flow fan includes that sequentially connected more piece through-flow fan blade, boss are in an axial direction
Multiple, multiple boss are arranged along the axis direction interval of cross flow fan, and boss is arranged in a one-to-one correspondence with more piece through-flow fan blade.
Preferably, boss corresponds to the centre position setting of corresponding section through-flow fan blade.
In accordance with a further aspect of the present invention, a kind of air conditioner, including wind turbine and above-mentioned spiral case are provided, wind turbine setting exists
In spiral case.
Spiral case provided by the invention, including snail throat, the wind path wall wall surface where snail throat are the first wall surface, the first wall surface
On be provided with the boss for protruding from the first wall surface, boss extends from snail throat along air current flow direction, and boss is along spiral case
The width of axial direction is the first width, and the first wall surface is the second width along the width of the axial direction of spiral case, and the first width is small
In the second width.The spiral case forms the boss for protruding from the wall surface on the wind path wall wall surface where snail throat, and the boss
Width is less than the width of the first wall surface, so as to by between side wall surface where boss and snail larynx on the axial direction of spiral case
Form high infraversion malposition so that air-flow incoming forms misphase excitation in the pressure oscillation where snail larynx on the wall surface of side, in air-flow arteries and veins
When dynamic continuous cycles Ground shock waves air duct wall surface, rough face can be such that the periodic shock of air-flow is not sent out at same time point
It is raw, to which pressure pulse is not in same frequency point, sliding-model control can be carried out to noise, reduce the tubulence energy of air-flow flowing,
Reduce pneumatic noise.
Description of the drawings
Fig. 1 is the structural schematic diagram of the air conditioner of the embodiment of the present invention；
Fig. 2 is the enlarged structure schematic diagram at the L of Fig. 1；
Fig. 3 is the structural schematic diagram of the spiral case of the air conditioner of the embodiment of the present invention；
Fig. 4 is the dimensional structure diagram of the spiral case of the air conditioner of the embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of boss of the spiral case of the air conditioner of the embodiment of the present invention；
Fig. 6 is that the air duct of wind turbine in the prior art emulates tubulence energy figure；
Fig. 7 is that the air duct of the wind turbine of the embodiment of the present invention emulates tubulence energy figure.
Reference numeral is expressed as：
1, snail throat；2, the first wall surface；3, boss；4, curved sections；5, planar section；6, the first guiding surface；7, it second leads
To inclined-plane；8, cross flow fan.
Specific implementation mode
In conjunction with shown in Figure 6, tubulence energy figure is emulated for air duct.From fig. 6 it can be seen that inside entire air duct, gas
Flow velocity degree and pressure are all uneven.This non-uniform airflow function forms stream pressure at any time on the wall surface of air duct
Pulsation, gas continuous cycles Ground shock waves air duct wall surface caused by fan blade rotation, that is, form rotational noise.Air-flow is not
Uniformity is bigger, and noise is also stronger.It is obtained by simulation analysis, Turbulent Kinetic is concentrated mainly on snail larynx side in air duct, is to make an uproar
The main occurring source of sound, therefore the present invention is concentrated for progress noise reduction process at the main occurring source of noise.
In conjunction with referring to shown in Fig. 1 to Fig. 5, according to an embodiment of the invention, spiral case includes snail throat 1, where snail throat 1
Wind path wall wall surface is the first wall surface 2, is provided with the boss 3 for protruding from the first wall surface 2 on the first wall surface 2, and boss 3 is from snail throat 1
It is the first width that place extends boss 3 along the width of the axial direction of spiral case along air current flow direction, and the first wall surface 2 is along spiral case
The width of axial direction is the second width, and the first width is less than the second width.Snail throat in the application refers to wind path wall and wind
The position of spacing minimum between machine impeller outer circle.
The spiral case forms the boss 3 for protruding from the wall surface on the wind path wall wall surface where snail throat 1, and the boss 3
Width is less than the width of the first wall surface 2, so as to pass through the axial direction in spiral case between side wall surface where boss 3 and snail larynx
It is upper to form high infraversion malposition so that air-flow incoming forms misphase excitation in the pressure oscillation where snail larynx on the wall surface of side, in air-flow
When pulsation continuous cycles Ground shock waves air duct wall surface, rough face can make the periodic shock of air-flow not at same time point
Occur, to which pressure pulse is not in same frequency point, sliding-model control can be carried out to noise, reduce the turbulence of air-flow flowing
Can, reduce pneumatic noise.
Preferably, along the axial direction of spiral case, the first side edge of the first side edge of boss 3 and the first wall surface 2 it
Between have predetermined space, between the second side edge of boss 3 and the second side edge of the first wall surface 2 have predetermined space.Due to
Boss 3 has predetermined space along the both sides of the circumferential direction of spiral case between the first wall surface 2, therefore boss 3 can be with both sides
The first wall surface 2 between be respectively formed high infraversion malposition so that air-flow incoming is in the pressure where snail larynx on the wall surface of side
Fluctuation forms significantly more efficient misphase excitation, more efficiently can carry out sliding-model control to noise, further decrease air-flow
The tubulence energy of flowing reduces pneumatic noise.Due to being respectively formed high infraversion malposition, energy between boss 3 and the first wall surface 2 of both sides
Enough avoid a sidewind of boss 3 from flowing is not influenced by high infraversion malposition, leads to that the wherein side of boss 3 can not be formed effectively
Sliding-model control the problem of, improve boss 3 noise reduction capability.
Boss 3 is provided with the first guiding surface 6 close to 1 side of snail throat, and the first guiding surface 6 is from boss 3 far from first
The top surface of wall surface 2 extends to the first wall surface 2；And/or boss 3 is provided with the second guiding surface 7 far from 1 side of snail throat, second
Guiding surface 7 extends to the first wall surface 2 from top surface of the boss 3 far from the first wall surface 2.First guiding surface 6 can play water conservancy diversion
Effect so that the transition when being flowed on the top surface of boss 3 from the first wall surface 2 of air-flow incoming is gentle, and it is de- to avoid the occurrence of air-flow
The phenomenon that wall surface from snail throat 1, avoids generating turbulent flow noise.Second guiding surface 7 can make to flow from the top surface of boss 3
The phenomenon that flowing to when on the first wall surface 2 that transition is gentle, avoiding the occurrence of the wall surface of flow shedding snail throat 1 avoids generating turbulent flow
Noise.
In the present embodiment, the first wall surface 2 includes curved sections 4 and planar section 5, and curved sections 4 and planar section 5 are along air-flow stream
Dynamic direction is set gradually, and boss 3 is arranged in curved sections 4.In general, turbulent flow is concentrated mainly on the curved sections 4 of the first wall surface 2
In range, therefore, boss 3 is arranged in curved sections 4, not only can effectively solve the problems, such as turbulent flow noise, but also can make
The effect for obtaining boss 3 is more made full use of, and avoids the length of boss 3 from being arranged long and cause waste of material excessive, simultaneously
Reduce the difficulty of processing of boss 3.
First guiding surface 6 is plane, cancave cambered surface or convex globoidal；And/or second guiding surface 7 be plane, cancave cambered surface or
Convex globoidal.Preferably, two guiding surfaces are plane, and it is the water conservancy diversion flow shedding boss caused by curved surface that can avoid inclined-plane
The problem of 3 top surface so that air-flow adherent can flow, and further decrease pneumatic noise.
When the first guiding surface 6 is plane, the angle between the first guiding surface 6 and the first wall surface 2 is 10 ° to 15 °.
When the second guiding surface 7 is plane, the angle between the second guiding surface 7 and the first wall surface 2 is 10 ° to 15 °,
The gradient that the first wall surface 2 is flow to from boss 3 can be greatly lowered in second guiding surface 7 so that air-flow is flow to from boss 3
When the first wall surface 2, flowing is gentler.
It sets the first guiding surface 6 and the second guiding surface 7 to above-mentioned angle, enables to air-flow in guiding surface
On flowing more transition it is gentle, the phenomenon that being less prone to flow shedding snail larynx wall surface, can further avoid generating turbulent flow and make an uproar
Sound.
First guiding surface 6 extends from snail throat 1 away from the direction of boss 3, and extends to 1 incoming side of snail throat
The first wall surface 2 on.Specifically, in the present embodiment, one end of the first guiding surface 6 extends to the top surface of boss 3, another
End extend on the first wall surface 2 of the incoming side of snail throat 1, to ensure boss 3 can from snail throat 1, along
The flow direction of air-flow, pressure oscillation caused by being flowed to air-flow form significantly more efficient misphase and encourage so that noise reduction is more
Add significantly.
Second guiding surface 7 extends to the intersection location of curved sections 4 and planar section 5 from the top surface of boss 3.Specifically,
Curved sections 4 are intersected at planar section 5 at straight line, and the second guiding surface 7 is overlapped with the intersecting lens of planar section 5 with the straight line,
So that the second guiding surface 7, curved sections 4 and planar section 5 intersect at same straight line.Due to air-flow from boss 3 along
When second guiding surface 7 gently flows to the first wall surface 2, so that it may be flowed to the flow end along the second guiding surface 7 flat
In face section 5, it will not pass through in curved sections 4, therefore not will produce turbulent phenomenon, can effectively avoid turbulent flow noise.
Along the flow direction of air-flow, boss 3 is cross-section structure, it is preferable that the rectangular cross-section of boss 3 is trapezoidal.
In the present embodiment, when the rectangular cross-section of boss 3, in the section of boss 3, the width of boss 3 be 9 to
11mm, the height that boss 3 protrudes the first wall surface 2 are 0.9 to 1.1mm.The structure of the height such as boss use is primarily to air-flow
Flowed when flowing through boss face it is smooth, decrease occur flow perturbation or reflux the case where.
Arrow direction in Fig. 5 is air current flow direction.In conjunction with shown in Figure 5, boss in one of the embodiments,
3 protrude from the highly consistent of the first wall surface 2, along air current flow direction, the decreasing cross-sectional area of boss 3.Due to along air-flow stream
Dynamic direction, the decreasing cross-sectional area of boss 3, therefore after air-flow is guided to through the first guiding surface 6 on boss 3, along convex
During the top surface flowing of platform 3, flow surface can become narrow gradually, and in this process, fraction can branch to 3 width of boss
On first wall surface 2 of direction both sides, so as to further change air-flow periodic shock time point, make the period of air-flow
Property impact not same time point occur, to pressure pulse not in same frequency point so that noise is discretized the effect of processing
More preferably, noise reduction is more preferably for fruit.In addition, the structure using decreasing cross-sectional area has the function of water conservancy diversion, air-flow is made preferably to be bonded
Wall surface flows.
Boss 3 is multiple, and multiple boss 3 are arranged along the axis direction interval of spiral case.Multiple spaced boss 3 with
First wall surface 2 matches, and can form multiple concaveconvex structures, so that in air-flow flow process, air flow method is more uniform,
Simultaneously so that the periodic shock of air-flow does not occur at same time point, change pressure pulsation frequencies, reduces pneumatic noise.
According to an embodiment of the invention, fan assembly includes wind turbine and above-mentioned spiral case, and wind turbine is arranged in spiral case.
Wind turbine is cross flow fan 8, and cross flow fan 8 includes that sequentially connected more piece through-flow fan blade, boss 3 are more in an axial direction
A, multiple boss 3 are arranged along the axis direction interval of cross flow fan 8, and boss 3 is set with more piece through-flow fan blade one-to-one correspondence
It sets.In the present embodiment, the quantity of boss 3 and the joint number of through-flow fan blade are consistent, the different type of the joint number of through-flow fan blade
It is different, therefore the quantity of boss is also unfixed for the through-flow air duct of different type of machines.
Preferably, boss 3 corresponds to the centre position setting of corresponding section through-flow fan blade.Through-flow fan blade is by identical on the whole
What the trifle of length was combined, air-flow relies primarily on leaf blade rotation and drives air flowing, therefore boss 3 is correspondingly arranged
In the middle position of each section of through-flow fan blade, air-flow flowing herein is strong, is not correspondingly arranged between through-flow fan blade section and section
Junction reduce pneumatic noise so as to more efficiently change pressure pulsation frequencies.
According to an embodiment of the invention, air conditioner includes wind turbine and above-mentioned spiral case, and wind turbine is arranged in spiral case.
In conjunction with shown in Figure 7, after the spiral case using the embodiment of the present invention, inside entire air duct, air velocity
It is distributed more uniformly for Fig. 6 with pressure, therefore can effectively reduce the inhomogeneities of air-flow, reduce pneumatic noise.
Those skilled in the art will readily recognize that under the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
All any modification, equivalent and improvement made by within principle etc., should all be included in the protection scope of the present invention.Above only
It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair
Under the premise of bright technical principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as the guarantor of the present invention
Protect range.
Claims (16)
1. a kind of spiral case, which is characterized in that including snail throat (1), the wind path wall wall surface where the snail throat (1) is the first wall
Face (2), is provided with the boss (3) for protruding from first wall surface (2) on first wall surface (2), and the boss (3) is from described
Snail throat extends at (1) along air current flow direction, and the width of axial direction of the boss (3) along the spiral case is first wide
The width of degree, axial direction of first wall surface (2) along the spiral case is the second width, and the first width is less than the second width.
2. spiral case according to claim 1, which is characterized in that along the axial direction of the spiral case, the boss (3)
There is predetermined space, the second side edge of the boss between first side edge and the first side edge of first wall surface (2)
There is predetermined space between the second side edge of first wall surface (2).
3. spiral case according to claim 1, which is characterized in that the boss (3) is arranged close to snail throat (1) side
There are the first guiding surface (6), first guiding surface (6) to prolong from top surface of the boss (3) far from first wall surface (2)
Extend to first wall surface (2)；And/or the boss (3) is provided with the second guiding surface far from snail throat (1) side
(7), second guiding surface (7) extends to first wall from top surface of the boss (3) far from first wall surface (2)
Face (2).
4. spiral case according to claim 3, which is characterized in that first wall surface (2) includes curved sections (4) and planar section
(5), the curved sections (4) and the planar section (5) are arranged along air current flow direction, and the boss (3) is arranged in the song
Face section (4).
5. spiral case according to claim 3, which is characterized in that first guiding surface (6) is plane, cancave cambered surface or convex
Cambered surface；And/or second guiding surface (7) is plane, cancave cambered surface or convex globoidal.
6. spiral case according to claim 5, which is characterized in that when first guiding surface (6) is plane, described the
Angle between one guiding surface (6) and first wall surface (2) is 10 ° to 15 °；And/or when second guiding surface
(7) be plane when, the angle between second guiding surface (7) and first wall surface (2) is 10 ° to 15 °.
7. spiral case according to claim 4, which is characterized in that first guiding surface (6) at snail throat (1) towards
Direction far from the boss (3) extends；And/or second guiding surface (7) extends to from the top surface of the boss (3)
The intersection location of the curved sections (4) and the planar section (5).
8. spiral case according to any one of claim 1 to 7, which is characterized in that described convex along the flow direction of air-flow
Platform (3) is cross-section structure.
9. spiral case according to claim 8, which is characterized in that the rectangular cross-section or trapezoidal of the boss (3).
10. spiral case according to claim 9, which is characterized in that when the rectangular cross-section of the boss (3), described convex
In the section of platform (3), the width of the boss (3) is 9 to 11mm, and the boss (3) protrudes the height of first wall surface (2)
It is 0.9 to 1.1mm.
11. spiral case according to any one of claim 1 to 7, which is characterized in that the boss (3) protrudes from described
One wall surface (2) it is highly consistent, along air current flow direction, the decreasing cross-sectional area of the boss (3).
12. spiral case according to any one of claim 1 to 7, which is characterized in that the boss (3) is multiple, Duo Gesuo
Boss (3) is stated along the axis direction interval of the spiral case to be arranged.
13. a kind of fan assembly, which is characterized in that described including the spiral case described in any one of wind turbine and claim 1 to 12
Wind turbine is arranged in the spiral case.
14. fan assembly according to claim 13, which is characterized in that the wind turbine is cross flow fan (8), the through-flow
Wind turbine (8) includes sequentially connected more piece through-flow fan blade in an axial direction, the boss (3) be it is multiple, multiple boss (3) along
The axis direction interval of the cross flow fan (8) is arranged, and the boss (3) is set with more piece through-flow fan blade one-to-one correspondence
It sets.
15. fan assembly according to claim 14, which is characterized in that the boss (3) corresponds to corresponding section through-flow wind
The centre position of leaf is arranged.
16. a kind of air conditioner, including the spiral case described in any one of wind turbine and claim 1 to 12, the wind turbine is arranged in institute
It states in spiral case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289084.3A CN108412807B (en) | 2018-04-03 | 2018-04-03 | Volute, fan assembly and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289084.3A CN108412807B (en) | 2018-04-03 | 2018-04-03 | Volute, fan assembly and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108412807A true CN108412807A (en) | 2018-08-17 |
| CN108412807B CN108412807B (en) | 2023-08-15 |
Family
ID=63134462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810289084.3A Active CN108412807B (en) | 2018-04-03 | 2018-04-03 | Volute, fan assembly and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05203173A (en) * | 1992-01-27 | 1993-08-10 | Mitsubishi Electric Corp | Air-conditioner |
| EP2405206A1 (en) * | 2009-03-06 | 2012-01-11 | Mitsubishi Electric Corporation | Air conditioner |
| CN104074803A (en) * | 2013-03-26 | 2014-10-01 | 珠海格力电器股份有限公司 | Cross-flow fan and air conditioner with same |
| CN104685299A (en) * | 2012-09-28 | 2015-06-03 | 大金工业株式会社 | Air conditioner |
| CN105402821A (en) * | 2015-12-30 | 2016-03-16 | 海信（山东）空调有限公司 | Air conditioner indoor unit |
| CN205641213U (en) * | 2016-05-11 | 2016-10-12 | 广东美的制冷设备有限公司 | Wind channel subassembly and air conditioner of air conditioner |
| CN208057513U (en) * | 2018-04-03 | 2018-11-06 | 珠海格力电器股份有限公司 | Spiral case, fan assembly and air conditioner |
-
2018
- 2018-04-03 CN CN201810289084.3A patent/CN108412807B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05203173A (en) * | 1992-01-27 | 1993-08-10 | Mitsubishi Electric Corp | Air-conditioner |
| EP2405206A1 (en) * | 2009-03-06 | 2012-01-11 | Mitsubishi Electric Corporation | Air conditioner |
| CN104685299A (en) * | 2012-09-28 | 2015-06-03 | 大金工业株式会社 | Air conditioner |
| CN104074803A (en) * | 2013-03-26 | 2014-10-01 | 珠海格力电器股份有限公司 | Cross-flow fan and air conditioner with same |
| CN105402821A (en) * | 2015-12-30 | 2016-03-16 | 海信（山东）空调有限公司 | Air conditioner indoor unit |
| CN205641213U (en) * | 2016-05-11 | 2016-10-12 | 广东美的制冷设备有限公司 | Wind channel subassembly and air conditioner of air conditioner |
| CN208057513U (en) * | 2018-04-03 | 2018-11-06 | 珠海格力电器股份有限公司 | Spiral case, fan assembly and air conditioner |
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| Publication number | Publication date |
|---|---|
| CN108412807B (en) | 2023-08-15 |
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