CN104747492A - Cross-flow impeller, cross-flow fan and wall air conditioner - Google Patents
Cross-flow impeller, cross-flow fan and wall air conditioner Download PDFInfo
- Publication number
- CN104747492A CN104747492A CN201310733528.5A CN201310733528A CN104747492A CN 104747492 A CN104747492 A CN 104747492A CN 201310733528 A CN201310733528 A CN 201310733528A CN 104747492 A CN104747492 A CN 104747492A
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- CN
- China
- Prior art keywords
- blade
- slot
- supporting disk
- impeller
- tangential impeller
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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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a cross-flow impeller, a cross-flow fan and a wall air conditioner. The cross-flow impeller comprises a plurality of blades which are arrayed at intervals in the circumferential direction and a supporting plate which is connected with the blades and is used for supporting the blades. The outer diameters of all the axial positions of the cross-flow impeller are the same. According to the cross-flow impeller, due to the fact that the outer diameters of all the axial positions are the same, the air outlet speed of the blades is good in uniformity, transverse vortexes are effectively restrained, and a good mute effect is achieved. Through the test, the cross-flow impeller can lower the aerodynamic noise of the blades by more than 1 dB, the sound quality can be well improved, and the blast capacity cannot be lowered.
Description
Technical field
The present invention relates to the part of non-varactor pump, particularly relate to a kind of tangential impeller, there is the cross flow fan of this tangential impeller, and use the wall-hanging air conditioner of this cross flow fan.
Background technique
Cross flow fan is widely used in the indoor set of Split wall-mounted type air conditioner because of features such as its size are little, compact structure, latitudinal flow are even.Cross flow fan comprises tangential impeller, air channel and motor.As shown in Figure 1, 2, existing tangential impeller is primarily of multiple blade and forming for the supporting disk supporting multiple described blade of being connected with described blade, the external diameter of described supporting disk is D1, and the external diameter of multiple described blade is D2, and D1 > D2.Because the external diameter of tangential impeller axis is inconsistent, the spacing in supporting disk and air channel is less than the spacing between blade and air channel, and cause air flow field uneven, air-out wind speed uniformity is poor, thus causes eddy current crack, has influence on noiseproof feature and the sound quality of blower fan.
Summary of the invention
For above-mentioned prior art present situation, technical problem to be solved by this invention is, provides a kind of tangential impeller, and it can reduce aerodynamic noise, improves sound quality, and can not reduce air quantity.Another technical problem to be solved by this invention is, provides a kind of and has this cross flow fan with this tangential impeller and wall-hanging air conditioner.
In order to solve the problems of the technologies described above, a kind of tangential impeller provided by the present invention, the supporting disk for supporting multiple described blade comprising along the circumferential direction spaced multiple blade and be connected with described blade, the external diameter of the axial each position of described tangential impeller is equal.
Wherein in an embodiment, the external diameter of described supporting disk is D1, and the external diameter of described blade is D2, and D2 is more than or equal to D1.
Wherein in an embodiment, 0mm≤D2-D1≤30mm.
Wherein in an embodiment, described tangential impeller comprises interconnective first impeller units and the second impeller units, described first impeller units comprises along the circumferential direction spaced multiple first blade and first supporting disk, the first end of multiple described first blade is fixedly connected with described first supporting disk, described first supporting disk is provided with along the circumferential direction spaced multiple first slot on the end face of described first blade, described second impeller units comprises along the circumferential direction spaced multiple second blade and second supporting disk, the first end of multiple described second blade is fixedly connected with described second supporting disk, second end of multiple described second blade inserts in multiple described first slot on described first supporting disk respectively, and be fixedly connected with described first supporting disk.
Wherein in an embodiment, multiple described second blade comprises at least one short second blade and remaining long second blade, the length of described short second blade is less than the length of described length second blade, multiple described first slot comprises high first slot corresponding with described short second leaf position and remaining low first slot, and the height of described high first slot is greater than the height of described low first slot.
Wherein in an embodiment, the length of described short second blade is H1, and the length of described length second blade is H2, and 0mm < H2-H1≤20mm; The height of described high first slot is A1, and the height of described low first slot is A2, and 0mm < A1-A2≤20mm.
Wherein in an embodiment, the wall of described high first slot is outwardly relative to the end face of described first supporting disk.
Wherein in an embodiment, the shape of cross section of described first slot and the shape of cross section of described second blade match, and described first slot has through side opening to described first supporting disk outer circumferential face.
Wherein in an embodiment, multiple described first blade and the interlaced layout of multiple described second blade.
A kind of cross flow fan provided by the present invention, comprises tangential impeller, air channel and motor, and described tangential impeller is above-mentioned tangential impeller.
A kind of wall-hanging air conditioner provided by the present invention, it comprises indoor set and outdoor unit, and described indoor set comprises housing and is arranged at the cross flow fan in this housing, and described cross flow fan is above-mentioned cross flow fan.
Compared with prior art, tangential impeller of the present invention, because the external diameter of axial each position is equal, makes the air-out velocity uniformity of fan blade fine, effectively suppresses horizontal eddy current, obtain good muting function.After tested, through-flow fan blade of the present invention can reduce more than the aerodynamic noise 1dB of fan blade, and can promote its sound quality well, and can not reduce air quantity.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the tangential impeller of prior art;
Fig. 2 is the main TV structure schematic diagram of the tangential impeller in one of them embodiment of the present invention;
Fig. 3 is the side view of the tangential impeller in Fig. 1;
Fig. 4,5,6 is the assembling schematic diagram of tangential impeller in Fig. 2 wherein two impeller units, and wherein, Fig. 4 is plan view, and Fig. 5 is stereogram, and Fig. 6 is the close-up schematic view at I place in Fig. 5;
The exhaust outlet wind speed profile comparison diagram that Fig. 7 is tangential impeller shown in tangential impeller and Fig. 2 shown in Fig. 1, the exhaust outlet wind speed profile figure that in Fig. 6, rhombus dotted line is tangential impeller shown in Fig. 1, the exhaust outlet wind speed profile figure that square dotted line is tangential impeller shown in Fig. 2;
The noise spectrum comparison diagram that Fig. 8,9 is tangential impeller shown in tangential impeller and Fig. 2 shown in Fig. 1, wherein Fig. 8 is the noise pattern of tangential impeller shown in Fig. 1, and Fig. 9 is the noise pattern of tangential impeller shown in Fig. 2.
Description of reference numerals: 100, tangential impeller; 110, the first impeller units; 111, the first supporting disk; 113, the first slot; 113a, high first slot; 113b, low first slot; 113c, side opening; 115, the first blade; 120, the second impeller units; 121, the second supporting disk; 123, the second slot; 125, the second blade; 125a, short second blade; 125b, long second blade.
Embodiment
And the present invention is described in detail in conjunction with the embodiments below with reference to the accompanying drawings.It should be noted that, when not conflicting, the feature in following embodiment and embodiment can combine mutually.
Figure 2 shows that the main TV structure schematic diagram of the tangential impeller 100 in one of them embodiment of the present invention.As shown in the figure, the supporting disk 111,121 for supporting multiple described blade 115,125 that tangential impeller 100 in the present embodiment comprises along the circumferential direction spaced multiple blade 115,125 and is connected with described blade 115,125, the external diameter of the axial each position of described tangential impeller 100 is equal.
More preferably, as shown in Figure 3, the external diameter of described supporting disk 111,121 is D1, and the external diameter of described blade 115,125 is D2, and D2 is more than or equal to D1.Further, 0mm≤D2-D1≤30mm.The external diameter achieving the axial each position of tangential impeller 100 from structure is like this consistent.
The tangential impeller of the present embodiment, because the external diameter of axial each position is equal, makes the air-out velocity uniformity of fan blade fine, effectively suppresses horizontal eddy current, obtain good muting function.Figure 7 shows that the exhaust outlet wind speed profile comparison diagram of the tangential impeller 100 in tangential impeller 100 shown in Fig. 1 and the present embodiment, as can be seen from Figure 6, the air-out wind speed profile of the tangential impeller 100 in the present embodiment than traditional fan blade evenly, nonuniformity coefficient reduces 42%, the horizontal eddy current of effective suppression, obtains good muting function.
Fig. 8 is the noise pattern of tangential impeller 100 shown in Fig. 1, and Fig. 9 is the audio frequency spectrogram of the tangential impeller 100 in the present embodiment.As can be seen from Fig. 8,9, the tangential impeller 100 of the present embodiment, noise total value reduces more than 1dB than traditional tangential impeller 100, and sound quality gets a promotion, and aeroperformance (comprising air quantity, pressure and efficiency) can not reduce.
The tangential impeller of the present embodiment is assembled by Multi-impeller unit.Fig. 4,5 is the assembling schematic diagram of tangential impeller in the present embodiment wherein two impeller units.As shown in Figure 4,5, described tangential impeller 100 comprises interconnective first impeller units 110 and the second impeller units 120 vertically, described first impeller units 110 comprises multiple first blade 115 and first supporting disk 111, described first supporting disk 111 is provided with along the circumferential direction spaced multiple first slot 113, the first end of multiple described first blade 115 is fixedly connected with described first supporting disk 111.Described second impeller units 120 comprises multiple second blade 125 and second supporting disk 121, second supporting disk 121 is provided with along the circumferential direction spaced multiple second slot 123, the first end of multiple described second blade 125 is connected integratedly with described second supporting disk 121, second end of multiple described second blade 125 inserts in described first slot 113 on described first supporting disk 111, and be welded and fixed with described first supporting disk 111 and be connected, tangential impeller 100 adopts this kind of structure, there is technique simple, advantage easy to process.
More preferably, multiple described second blade 125 comprises the short second blade 125a of at least a slice and remaining long second blade 125b, the length of described short second blade 125a is less than the length of described length second blade 125b, multiple described first slot 113 comprises the high first slot 113a corresponding with described short second blade 125a and remaining low first slot 113b, and the height of described high first slot 113a is greater than the height of described low first slot 113b.Further, the length of described short second blade 125a is H1, and the length of described length second blade 125b is H2, and 0mm < H2-H1≤20mm.The height of described high first slot 113a is A1, and the height of described low first slot 113b is A2, and 0mm < A12-A2≤20mm.Further, the wall of described high first slot is outwardly relative to the end face of described first supporting disk.Like this, only need during welding the high first slot 113a quick inserting by short second blade 125a and protrusion welds, efficiently very convenient.
More preferably, the shape of cross section of described first slot 113 and the shape of cross section of described second blade 125 match, and described first slot 113 has through side opening 113c (see Fig. 7) to described first supporting disk 111 outer circumferential face, like this, the second end of the second blade 125 all inserts in the first slot 113.
More preferably, multiple described first blades 115 and the interlaced layout of multiple described second blade 125, compare noninterlace and arrange, noise total value reduces by more than 1 decibel.
The above embodiment only have expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (11)
1. a tangential impeller, the supporting disk for supporting multiple described blade comprising along the circumferential direction spaced multiple blade and be connected with described blade, is characterized in that, the external diameter of the axial each position of described tangential impeller is equal.
2. tangential impeller according to claim 1, is characterized in that, the external diameter of described supporting disk is D1, and the external diameter of described blade is D2, and D2 is more than or equal to D1.
3. tangential impeller according to claim 2, is characterized in that, 0mm≤D2-D1≤30mm.
4. tangential impeller as claimed in any of claims 1 to 3, it is characterized in that, described tangential impeller comprises interconnective first impeller units and the second impeller units, described first impeller units comprises along the circumferential direction spaced multiple first blade and first supporting disk, the first end of multiple described first blade is fixedly connected with described first supporting disk, described first supporting disk is provided with along the circumferential direction spaced multiple first slot on the end face of described first blade, described second impeller units comprises along the circumferential direction spaced multiple second blade and second supporting disk, the first end of multiple described second blade is fixedly connected with described second supporting disk, second end of multiple described second blade inserts in multiple described first slot on described first supporting disk respectively, and be fixedly connected with described first supporting disk.
5. tangential impeller according to claim 4, it is characterized in that, multiple described second blade comprises at least one short second blade and remaining long second blade, the length of described short second blade is less than the length of described length second blade, multiple described first slot comprises high first slot corresponding with described short second leaf position and remaining low first slot, and the height of described high first slot is greater than the height of described low first slot.
6. tangential impeller according to claim 5, is characterized in that, the length of described short second blade is H1, and the length of described length second blade is H2, and 0mm < H2-H1≤20mm; The height of described high first slot is A1, and the height of described low first slot is A2, and 0mm < A1-A2≤20mm.
7. tangential impeller according to claim 4, is characterized in that, the wall of described high first slot is outwardly relative to the end face of described first supporting disk.
8. tangential impeller according to claim 4, is characterized in that, the shape of cross section of described first slot and the shape of cross section of described second blade match, and described first slot has through side opening to described first supporting disk outer circumferential face.
9. tangential impeller according to claim 4, is characterized in that, multiple described first blade and the interlaced layout of multiple described second blade.
10. a cross flow fan, comprises tangential impeller, air channel and motor, it is characterized in that, described tangential impeller is tangential impeller as in one of claimed in any of claims 1 to 9.
11. 1 kinds of wall-hanging air conditioners, it comprises indoor set and outdoor unit, and described indoor set comprises housing and is arranged at the cross flow fan in this housing, and it is characterized in that, described cross flow fan is cross flow fan as claimed in claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733528.5A CN104747492A (en) | 2013-12-25 | 2013-12-25 | Cross-flow impeller, cross-flow fan and wall air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733528.5A CN104747492A (en) | 2013-12-25 | 2013-12-25 | Cross-flow impeller, cross-flow fan and wall air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN104747492A true CN104747492A (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310733528.5A Pending CN104747492A (en) | 2013-12-25 | 2013-12-25 | Cross-flow impeller, cross-flow fan and wall air conditioner |
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| CN (1) | CN104747492A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015087A (en) * | 2016-07-21 | 2016-10-12 | 美的集团武汉制冷设备有限公司 | Cross-flow wind wheel, cross-flow fan and air conditioner indoor unit |
| CN106091099A (en) * | 2016-06-28 | 2016-11-09 | 山东中科能人工环境有限公司 | A kind of Novel variable-frequency double temperature double control heat sink arrangement |
| CN106091117A (en) * | 2016-06-28 | 2016-11-09 | 山东中科能人工环境有限公司 | A kind of Novel variable-frequency controls heat sink arrangement |
| CN106123171A (en) * | 2016-06-28 | 2016-11-16 | 山东中科能人工环境有限公司 | A kind of Novel variable-frequency controls family's geothermal heat pump air-conditioning system device |
| CN107382403A (en) * | 2017-09-05 | 2017-11-24 | 广西金穗生态科技股份有限公司 | Bar buttress formula compost aerating system |
| CN109506296A (en) * | 2018-11-21 | 2019-03-22 | 珠海格力电器股份有限公司 | Through-flow fan blade, cross flow fan and air conditioner |
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| JPH0658290A (en) * | 1992-08-10 | 1994-03-01 | Mitsubishi Electric Corp | Cross flow blower |
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| CN1609456A (en) * | 2003-10-23 | 2005-04-27 | 松下电器产业株式会社 | Transverse fan and method for producing transverse fan |
| CN203670270U (en) * | 2013-12-25 | 2014-06-25 | 珠海格力电器股份有限公司 | Cross-flow impeller, cross-flow fan and wall-mounted air conditioner |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3921272A (en) * | 1974-05-24 | 1975-11-25 | Torin Corp | Blower wheel and method of making the same |
| JPH02199297A (en) * | 1989-01-26 | 1990-08-07 | Akaishi Kinzoku Kogyo Kk | Cross flow fan |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091099A (en) * | 2016-06-28 | 2016-11-09 | 山东中科能人工环境有限公司 | A kind of Novel variable-frequency double temperature double control heat sink arrangement |
| CN106091117A (en) * | 2016-06-28 | 2016-11-09 | 山东中科能人工环境有限公司 | A kind of Novel variable-frequency controls heat sink arrangement |
| CN106123171A (en) * | 2016-06-28 | 2016-11-16 | 山东中科能人工环境有限公司 | A kind of Novel variable-frequency controls family's geothermal heat pump air-conditioning system device |
| CN106091117B (en) * | 2016-06-28 | 2020-04-21 | 山东中科能人工环境有限公司 | Novel variable frequency control radiator device |
| CN106015087A (en) * | 2016-07-21 | 2016-10-12 | 美的集团武汉制冷设备有限公司 | Cross-flow wind wheel, cross-flow fan and air conditioner indoor unit |
| CN107382403A (en) * | 2017-09-05 | 2017-11-24 | 广西金穗生态科技股份有限公司 | Bar buttress formula compost aerating system |
| CN109506296A (en) * | 2018-11-21 | 2019-03-22 | 珠海格力电器股份有限公司 | Through-flow fan blade, cross flow fan and air conditioner |
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Application publication date: 20150701 |