CN103174677A - Volute and air-conditioner with same - Google Patents
Volute and air-conditioner with same Download PDFInfo
- Publication number
- CN103174677A CN103174677A CN2011104316546A CN201110431654A CN103174677A CN 103174677 A CN103174677 A CN 103174677A CN 2011104316546 A CN2011104316546 A CN 2011104316546A CN 201110431654 A CN201110431654 A CN 201110431654A CN 103174677 A CN103174677 A CN 103174677A
- Authority
- CN
- China
- Prior art keywords
- air
- spiral case
- passage
- volute
- wind
- 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.)
- Granted
Links
Images
Abstract
The invention provides a volute and an air-conditioner with the volute, wherein the volute comprises a volute body (10), an air inlet side (30) and an air outlet side (33); the air outlet side (33) of the volute is provided with a fan blade placing portion (20) and an air outlet passage (40) which is communicated with the fan blade placing portion (20), the volute is further provided with a diffusion portion (50) which extends towards the direction of the air outlet passage (40), the volute further comprises a backflow air passage (60), an inlet end (61) of the backflow air passage is located on the side wall of the diffusion portion (50), the side wall of the diffusion portion (50) faces to the air outlet passage (40), and an outlet end (63) of the backflow air passage (60) is communicated with the air inlet side (30) of the volute. The volute and the air-conditioner with the volute effectively solve the problem of volute surging caused by unstable air-out of the volute in the prior art.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of spiral case and have its air conditioner.
Background technique
At present, there is the phenomenon of the air-out shakiness that varies in size in cabinet-type air conditioner, and the unstability that this phenomenon is mainly the spiral case air intake causes, and the unsettled problem of air intake is that mainly there is different static pressure zones in intake grill.The mode that solves the unstable problem of above-mentioned air-out in prior art is the baffle liner part at the similar grid of spiral case inlet place's increase, but effect and not obvious.
As shown in Figure 1, floor standing air-conditioner device of the prior art is from spiral case both sides suction wind, then passing through blower fan blows out the air-out passage 40 ' of wind from spiral case, because the cabinet-type air conditioner of prior art arranges for sealing, distinguished and admirable center during the spiral case air-out is non-concentric with the center of fan blade placement section 20 ', the air-out vortex phenomenon occurs between the air-out passage 40 ' of spiral case and spiral case diffusion section 50 ', cause the spiral case air-out unstable and then make spiral case produce the phenomenon of surge.
As shown in Figure 2, inlet side one end of the spiral case diffusion section 50 ' in floor standing air-conditioner device of the prior art is equipped with the miscellaneous part (for example terminal box) of floor standing air-conditioner device, thereby these parts have blocked the part air-flow causes inlet side one end of spiral case diffusion section 50 ' to become low pressure area, and spiral case and this parts inevitable gap can occur when installing, cause when the 30 ' air intake of spiral case inlet side, there is a little air intake to flow into place, gap (referring to the backflow arrow in Fig. 2), cause the spiral case air intake unstable, produced the phenomenon of surge.
Summary of the invention
The present invention aims to provide a kind of spiral case and has its air conditioner, and is unstable and cause the problem of spiral case surge to solve spiral case air-out in prior art.
To achieve these goals, according to an aspect of the present invention, provide a kind of spiral case, comprised the spiral case body, inlet side and air side; The air side of spiral case has the fan blade placement section, with the air-out passage that is communicated with the fan blade placement section, spiral case also has the diffusion section of extending towards the air-out passage direction, spiral case also comprises backflow wind passage, its entry end is positioned at diffusion section on the sidewall of air-out passage, and the outlet end of backflow wind passage is communicated with the inlet side of spiral case.
Further, the position of the outlet end of backflow wind passage is relative with diffusion section.
Further, diffusion section has opening towards the return duct of air-out passage, the entry end that with one voice forms backflow wind passage of return duct and air-out passage, and the bottom of return duct is provided with air outlet hole to form the outlet end of backflow wind passage.
Further, return duct is rectangle groove, circular trough or curve bath.
Further, air outlet hole is positioned at the middle part of the bottom land of rectangle groove.
According to a further aspect in the invention, provide a kind of air conditioner, comprised above-mentioned spiral case.
Use technological scheme of the present invention, spiral case comprises the spiral case body, inlet side and air side; The air side of spiral case has the fan blade placement section, with the air-out passage that is communicated with the fan blade placement section, spiral case also has the diffusion section of extending towards the air-out passage direction, spiral case also comprises backflow wind passage, its entry end is positioned at diffusion section on the sidewall of air-out passage, and the outlet end of backflow wind passage is positioned at the inlet side of spiral case.The wind that sucks from the intake grill of air conditioner enters from the inlet side of spiral case, is flowed out by air-out passage; On the air-out passage sidewall, air-out meeting herein forms eddy current wind in the diffusion section of spiral case, the backflow wind passage that eddy current wind enters spiral case is back to the inlet side, makes the spiral case air inlet/outlet more stable, has effectively solved the unstable and surge problem that causes of air-out.
Description of drawings
The Figure of description that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
The master that Fig. 1 shows spiral case embodiment of the prior art looks schematic diagram;
Fig. 2 shows the schematic rear view of the spiral case of Fig. 1;
The master that Fig. 3 shows the embodiment of spiral case of the present invention looks schematic diagram;
Fig. 4 shows the schematic rear view of the spiral case of Fig. 3;
Fig. 5 shows the embodiment's of spiral case of the present invention low wind shelves frequency spectrum snapshot;
Fig. 6 shows embodiment's the low wind shelves frequency spectrum snapshot of the spiral case of prior art;
Fig. 7 shows the embodiment's of spiral case of the present invention apoplexy shelves frequency spectrum snapshot;
Fig. 8 shows embodiment's the apoplexy shelves frequency spectrum snapshot of the spiral case of prior art;
Fig. 9 shows the embodiment's of spiral case of the present invention high wind shelves frequency spectrum snapshot;
Figure 10 shows embodiment's the high wind shelves frequency spectrum snapshot of the spiral case of prior art;
Figure 11 shows the embodiment's of spiral case of the present invention superelevation wind shelves frequency spectrum snapshot;
Figure 12 shows embodiment's the superelevation wind shelves frequency spectrum snapshot of the spiral case of prior art.
Embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
As shown in Figure 3 and Figure 4, the spiral case of the present embodiment comprises spiral case body 10, inlet side 30, air side 33, air-out passage 40 and backflow wind passage 60; The air side 33 of spiral case has fan blade placement section 20; Air-out passage 40 is communicated with fan blade placement section 20; Diffusion section 50 extends towards air-out passage 40; The entry end 61 of backflow wind passage 60 is positioned at diffusion section 50 on the sidewall of air-out passage 40; The outlet end 63 of backflow wind passage 60 is communicated with the inlet side 30 of spiral case.
In blower fan when running,, the wind that sucks from the intake grill of air conditioner enters from the inlet side 30 of spiral case, is flowed out by air-out passage 40; In the diffusion section 50 of spiral case on air-out passage 40 sidewalls, air-out meeting herein forms eddy current wind, the backflow wind passage 60 that eddy current wind enters spiral case is back to inlet side 30, make the spiral case air inlet/outlet more stable, effectively solve the unstable and surge problem that causes of air-out, thereby played the effect that reduces noise.
Wherein, spiral case body 10 comprises end plate 10a and side plate 10b; Side plate 10b extends to a side of end plate along the part periphery of end plate 10a, and generally the end plate 10a of spiral case body 10 is rectangular, and side plate 10b extends towards a side of end plate along three limits of the end plate 10a of rectangle.Side plate is for having ringent structure, and side plate 10b inside is provided with fan blade, and the indentation, there of above-mentioned opening shape structure is used to form the air-out passage 40 that radially extends along blower fan.Side plate 10b has the cylindric inwall 10c that coordinates with the fan blade outer surface, and the breach of this cylindric inwall 10c is communicated with air-out passage 40.40 places are tiltedly installed with a wind deflector 10d for changing air-out direction at air-out passage, make the circulation area of air-out passage 40 by the increase gradually laterally of fan blade place; Wind deflector 10d one end is connected with cylindric inwall 10c, and the other end is connected with side plate 10b, wherein, forms the zone of a similar triangle between wind deflector, cylindric inwall 10c and side plate 10b, is commonly referred to as diffusion section.
Preferably, the position of the outlet end 63 of backflow wind passage 60 is corresponding with diffusion section 50, and namely outlet end 63 is positioned at the inlet side respective class of diffusion section 50 like the regional extent of triangle; The eddy current wind that refluxes by backflow wind passage 60 flows out from the corresponding position of diffusion section 50, and reenters the inlet side, has eliminated the low pressure of corresponding diffusion section 50 positions, has avoided the part air intake of spiral case to blow back into this position, thereby has made the spiral case air intake more stable.
Preferably, diffusion section 50 has opening towards the return duct of air-out passage 40, the entry end 61 that with one voice forms backflow wind passage 60 of return duct and air-out passage 40, and, the bottom of return duct is provided with air outlet hole to form the outlet end 63 of backflow wind passage 60, return duct in the present embodiment is rectangle groove, and air outlet hole is positioned at the middle part of the bottom land of rectangle groove, and the return duct in the present embodiment also can be circular trough or curve bath.In unshowned in the drawings other embodiments, return duct also can be other shapes.
Adopt the spiral case (hereinafter referred to as test example) that is used for test of above-mentioned Technical Design of the present invention, as shown in Figure 3 and Figure 4, be provided with backflow wind passage 60 on spiral case, its entry end 61 be return duct and air-out passage 40 with one voice, outlet end 63 is the air outlet hole of bottom of the return duct of spiral case.Test according to above-mentioned test example, with spiral case contrast noise and the crest frequency of prior art, test as follows:
This test adopts the principle of air quantity recirculation balance pressure to test, and the gas that a part is discharged draws the air return machine entrance again, does not make compressor flow too small and be in range of instability work.Research simulation vaporizer adheres to the problem of noise and air-out shakiness under the severe environmental conditions such as water droplet, dust in large size, Experimental Comparison the spiral case of prior art and spiral case complete machine noise and crest frequency under each wind shelves of test example, the data demonstration, the new spiral case of optimizing after changing can effectively reduce noise and crest frequency.
Test method: adopt same cabinet machine, change the spiral case of different prior aries and test example and carry out blocking up with not stifled at exhaust outlet on same spiral case, gather respectively data and the On-site Experience of different situations.
Phenomenon is experienced in test: when the On-site Experience air-out is unstable, the test function of the spiral case of assembling prior art is heard the Abnormal Sound that the air-out inequality causes more significantly, and the testing machine Abnormal Sound of the spiral case of test example has larger improvement, and one meter distance of distance test (DT) machine is not heard abnormal sound.
Concrete test data is as follows:
1) low wind shelves:
| Wind | Overall noise | Peak value/frequency |
| Shelves | /dB(A) | /dB(A)/Hz | |
| The spiral case of test example | L | 34.4 | 21.6/258.0 |
| The spiral case of prior art | L | 36.2 | 22.5/245.5 |
The spiral case of test example hangs down wind shelves frequency spectrum: as shown in Figure 5;
The spiral case of prior art hangs down wind shelves frequency spectrum: as shown in Figure 6.
2) apoplexy shelves:
The spiral case apoplexy shelves frequency spectrum of test example: as shown in Figure 7;
The spiral case apoplexy shelves frequency spectrum of prior art: as shown in Figure 8.
3) high wind shelves:
The high wind shelves of the spiral case of test example frequency spectrum: as shown in Figure 9;
The high wind shelves of the spiral case of prior art frequency spectrum: as shown in figure 10.
4) superelevation wind shelves:
The spiral case superelevation wind shelves frequency spectrum of test example: as shown in figure 11;
The spiral case superelevation wind shelves frequency spectrum of prior art: as shown in figure 12.
Conclusion (of pressure testing):
1, the spiral case of test example reduces 3.1dB (A) at superelevation wind shelves, and high wind shelves reduce 2.9dB (A), and the apoplexy shelves reduce 2.5dB (A), reduces 1.8dB (A) at low wind shelves;
2, peak value aspect, the spiral case of test example has reduced 0.9dB (A) at low wind shelves, and test example apoplexy shelves have reduced 3.1dB (A), reduce 4.9dB (A) at high wind shelves, and superelevation wind shelves have reduced 2.6dB (A);
3, tonequality is experienced: the spiral case of test example obviously is better than the spiral case of prior art;
4, wind quantity test: the spiral case of test example hangs down 15 cubes mutually than the spiral case air quantity of prior art.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. spiral case comprises:
Spiral case body (10);
Inlet side (30) and air side (33);
the air side of described spiral case (33) has fan blade placement section (20), with the air-out passage (40) that is communicated with described fan blade placement section (20), described spiral case also has the diffusion section (50) of extending towards described air-out passage (40) direction, it is characterized in that, described spiral case also comprises: backflow wind passage (60), its entry end (61) is positioned at described diffusion section (50) on the sidewall of described air-out passage (40), the outlet end (63) of described backflow wind passage (60) is communicated with the inlet side (30) of described spiral case.
2. spiral case according to claim 1, is characterized in that, the outlet end (63) of described backflow wind passage (60) is relative with described diffusion section (50).
3. spiral case according to claim 1, it is characterized in that, described diffusion section (50) has opening towards the return duct of described air-out passage (40), the entry end (61) of the described backflow wind of the formation with one voice passage (60) of described return duct and described air-out passage (40), and the bottom of described return duct is provided with air outlet hole to form the outlet end (63) of described backflow wind passage (60).
4. spiral case according to claim 3, is characterized in that, described return duct is square groove, circular trough or curve bath.
5. spiral case according to claim 3, is characterized in that, described air outlet hole is positioned at the middle part of the bottom land of described return duct.
6. an air conditioner, have spiral case, it is characterized in that, described spiral case is the described spiral case of any one in claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110431654.6A CN103174677B (en) | 2011-12-20 | 2011-12-20 | Spiral case and there is its air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110431654.6A CN103174677B (en) | 2011-12-20 | 2011-12-20 | Spiral case and there is its air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103174677A true CN103174677A (en) | 2013-06-26 |
| CN103174677B CN103174677B (en) | 2016-02-24 |
Family
ID=48634761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110431654.6A Active CN103174677B (en) | 2011-12-20 | 2011-12-20 | Spiral case and there is its air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103174677B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352153A (en) * | 2015-12-01 | 2016-02-24 | 珠海格力电器股份有限公司 | Air guide structure and cabinet air conditioner with same |
| WO2017041727A1 (en) * | 2015-09-11 | 2017-03-16 | 珠海格力电器股份有限公司 | Air conditioner, drum-shaped volute air duct system and air duct volute thereof |
| CN109099509A (en) * | 2018-09-27 | 2018-12-28 | Tcl空调器(中山)有限公司 | Cabinet air-conditioner and air conditioner |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2171341A (en) * | 1936-06-01 | 1939-08-29 | Gen Electric | Fan casing |
| JPS5575592A (en) * | 1978-12-05 | 1980-06-06 | Matsushita Electric Ind Co Ltd | Fan |
| SU1092305A1 (en) * | 1983-01-11 | 1984-05-15 | Пермский политехнический институт | Centrifugal turbine |
| CN1690538A (en) * | 2001-03-23 | 2005-11-02 | 三菱重工业株式会社 | Indoor unit and air conditioner |
| FR2856442B1 (en) * | 2003-06-19 | 2006-08-04 | Renault Sa | CENTRIFUGAL VENTILATON DEVICE. |
| CN101012837A (en) * | 2007-02-02 | 2007-08-08 | 清华大学 | Centrifugal compressor having air removal jet box structure |
| JP2008309029A (en) * | 2007-06-13 | 2008-12-25 | Ihi Corp | Centrifugal compressor |
| CN201851403U (en) * | 2010-10-26 | 2011-06-01 | 珠海格力电器股份有限公司 | Air duct device of air-conditioner and air-conditioner |
| CN202348769U (en) * | 2011-12-20 | 2012-07-25 | 珠海格力电器股份有限公司 | Volute and air-conditioner with same |
-
2011
- 2011-12-20 CN CN201110431654.6A patent/CN103174677B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2171341A (en) * | 1936-06-01 | 1939-08-29 | Gen Electric | Fan casing |
| JPS5575592A (en) * | 1978-12-05 | 1980-06-06 | Matsushita Electric Ind Co Ltd | Fan |
| SU1092305A1 (en) * | 1983-01-11 | 1984-05-15 | Пермский политехнический институт | Centrifugal turbine |
| CN1690538A (en) * | 2001-03-23 | 2005-11-02 | 三菱重工业株式会社 | Indoor unit and air conditioner |
| FR2856442B1 (en) * | 2003-06-19 | 2006-08-04 | Renault Sa | CENTRIFUGAL VENTILATON DEVICE. |
| CN101012837A (en) * | 2007-02-02 | 2007-08-08 | 清华大学 | Centrifugal compressor having air removal jet box structure |
| JP2008309029A (en) * | 2007-06-13 | 2008-12-25 | Ihi Corp | Centrifugal compressor |
| CN201851403U (en) * | 2010-10-26 | 2011-06-01 | 珠海格力电器股份有限公司 | Air duct device of air-conditioner and air-conditioner |
| CN202348769U (en) * | 2011-12-20 | 2012-07-25 | 珠海格力电器股份有限公司 | Volute and air-conditioner with same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017041727A1 (en) * | 2015-09-11 | 2017-03-16 | 珠海格力电器股份有限公司 | Air conditioner, drum-shaped volute air duct system and air duct volute thereof |
| CN105352153A (en) * | 2015-12-01 | 2016-02-24 | 珠海格力电器股份有限公司 | Air guide structure and cabinet air conditioner with same |
| CN109099509A (en) * | 2018-09-27 | 2018-12-28 | Tcl空调器(中山)有限公司 | Cabinet air-conditioner and air conditioner |
| CN109099509B (en) * | 2018-09-27 | 2024-04-05 | Tcl空调器(中山)有限公司 | Cabinet air conditioner and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103174677B (en) | 2016-02-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101182941A (en) | Ceiling type air conditioner | |
| CN101929712A (en) | Annular mobile air conditioner | |
| CN213280449U (en) | Integrated air conditioner and machine room heat dissipation system | |
| CN103174677B (en) | Spiral case and there is its air conditioner | |
| KR100657528B1 (en) | Centrifugal fan for ventilating apparatus | |
| CN106403242B (en) | Air conditioner and panel support and procapsid subassembly thereof | |
| CN206973756U (en) | Air-ducting ring and air-conditioner outdoor unit | |
| KR20180079710A (en) | air conditioner | |
| CN202348769U (en) | Volute and air-conditioner with same | |
| CN210801396U (en) | Fan subassembly, machine and air conditioner in air conditioning | |
| CN101915244A (en) | Through-flow fan of noise-reduction and air-enlargement volute tongue with convex table | |
| KR20080019357A (en) | Air conditioner | |
| CN102080871A (en) | Shock-absorbing wheel for fixing copper tube of air-conditioning outdoor unit | |
| CN204187744U (en) | Window off-premises station and air-conditioner | |
| CN204141724U (en) | Air-conditioner | |
| CN113237139B (en) | Vertical air conditioner indoor unit and air conditioner | |
| CN205102292U (en) | Air conditioner outdoor unit and air conditioner with same | |
| CN112503644A (en) | Integral air conditioner | |
| CN101788170A (en) | Mobile air conditioner | |
| CN204227573U (en) | Window off-premises station and air-conditioner | |
| CN220870997U (en) | Fresh air module and air conditioner | |
| CN102865653A (en) | Air collection cover structure of movable air conditioner | |
| CN211119665U (en) | Indoor unit of air conditioner and air conditioner | |
| CN218295853U (en) | Air-conditioning type range hood | |
| CN210165533U (en) | Air conditioner air port structure and air conditioner comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |