CN202140322U - Cross-flow fan - Google Patents
Cross-flow fan Download PDFInfo
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- CN202140322U CN202140322U CN201120267374U CN201120267374U CN202140322U CN 202140322 U CN202140322 U CN 202140322U CN 201120267374 U CN201120267374 U CN 201120267374U CN 201120267374 U CN201120267374 U CN 201120267374U CN 202140322 U CN202140322 U CN 202140322U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 241000237858 Gastropoda Species 0.000 claims description 98
- 239000006200 vaporizer Substances 0.000 claims description 29
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 description 9
- 239000013598 vector Substances 0.000 description 9
- 239000012530 fluid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008676 import Effects 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009527 percussion Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model provides a cross-flow fan, include: a cross flow wind wheel; the inner surface is the chassis spiral case of curve, covers the outside of establishing at the through-flow wind wheel, includes: an air outlet section, an air inlet section and a rear volute tongue; an evaporator; a front volute tongue; the air inlet and the air outlet both extend downwards; an air outlet guide plate extending downwards from the lower part of the front volute tongue is further arranged on the air outlet side of the water pan, and an air guide angle is formed between the air outlet guide plate and the longitudinal wall of the front volute tongue; the point of tangency of the section curve of the rear volute tongue and the horizontal plane is a point A, an included angle formed between a connecting line of the point A and a central point O of the cross-flow wind wheel and a vertical line passing through the central point O of the cross-flow wind wheel is theta, and theta is more than or equal to 45 degrees and less than or equal to 55 degrees. The utility model provides a cross-flow fan with optimize wind channel structure, the amount of wind is big, and the noise is low.
Description
Technical field
The utility model relates to a kind of cross flow fan, particularly a kind of both can be used for embedded, also can be used for the cross flow fan of the air conditioner that suspended ceiling installs.
Background technique
Characteristics such as cross flow fan has that the outlet dynamic pressure is high, and it is far away to blow out distance, and air-flow is flat evenly, and the elongated small and exquisite and noise of structure is lower, in air purification dedusting, ventilation, automobile, air-conditioning and many household appliance technical field obtain extensive use.The Along with people's growth in the living standard also improves constantly the acoustic environment travelling comfort requirement of working, living, and particularly owing to the aesthetic property of building structure finishing, feasible noise and installation to air conditioner all had higher requirement.The air conditioner indoor machine that traditional embedded or suspended ceiling is installed, because the blower fan that adopts is a centrifugal blower, rotating speed is high, noise and vibration is big.Therefore, adopt cross flow fan embedded/ceiling-mounted air conditioner because attractive in appearance, size is less, and has inside and outside flow field characteristic better, the characteristics that noise is low can be good at satisfying people's demand.
Disclose a kind of indoor machine structure of suspended ceiling split-type air conditioner device among the Chinese patent document number CN101000158A, adopted the vaporizer of V-arrangement, the acute angle angle of two vaporizers and Vertical direction all is 45 °; Increased heat exchange area; Reduced vaporizer length and vaporizer occupation space, but on the Vertical direction in the wind wheel center of circle, the angle of α is 75 °; The gap of wind wheel and spiral case is bigger, has increased the thickness of blower fan position and complete machine.The patent No. of Chinese patent document number CN201448947U also discloses a kind of air blowing opening and has been positioned at the indoor set outer casing frontispiece; The scope of angle of line that the Vertical direction in the center of circle of tubular wine wheel and the shortest spacing on the snail tongue of back are put the center of circle of tubular wine wheel is-10 °～+ 70 °; Adopt √ shape vaporizer; Wherein the heat exchange tabs of long side is arranged on tubular wine wheel below rear side, and the vaporizer tabs of short side is arranged on front side, tubular wine wheel below, and tubular wine wheel is arranged on the top of vaporizer; Angle β is 80 °～120 ° between two vaporizer tabs; The ratio range of length flanging vaporizer is 1.4～4 indoor split-type air conditioner, and thickness reduces, but promptly insertion type is installed again the suspended ceiling installation.But tubular wine wheel and vaporizer, water receiving disc and intake grill have bigger distance, and the complete machine thickness of air conditioner is still very thick.
Further, the indoor split-type air conditioner of employing cross flow fan is owing to adopt return air, preceding or following air-out mode down usually; Because condensed water is drained effect on structure; Cause the air intake resistance big, have a strong impact on the performance and the efficient of cross flow fan, it is inhomogeneous to be easy to generate air-out; Air quantity is little, the problem that noise is big.
Cross flow fan is because air-flow need pass through impeller twice; Because obstacles such as air channel, snail tongue and intake grill vaporizer are to the influence of air intake; The inevitable impact that forms blade of twice turnover of air-flow impeller produces whirlpool snail even rotating stall phenomenon in impeller channel, cause the noise of high-decibel; The snail tongue is as the separation of cross flow fan inlets and putlets of ventilation; And the drainage thread on the chassis of guide functions; To the internal and external flow field of cross flow fan particularly shape, position, the size of eccentric snail; Produce significant effects, the mobility status in eccentric snail size, position, shape and the blade passage is the deciding factor that influences cross flow fan aeroperformance and noise tonequality.The drainage thread that snail tongue and chassis are optimized in adjustment forms more excellent air flue structure, can improve the state of eccentric snail, increases impeller internal circulation area; Leaf road mobility status; And then improve the inside and outside flow characteristic of blower fan, and increase fan efficiency, improve air quantity; Reduce the degree that intake grill and exhaust outlet reflux, reach and satisfy the requirement of people the air conditioning comfortableness aspect.
The cross flow fan of embedding or ceiling-mounted air conditioner employing at present, the serious delamination of its flow field and runner, snail tongue place refluxes serious, and the flow field is unstable, and the fluid scouring impeller is serious, and eccentric snail yardstick is big, and the position is near the impeller center, and inside and outside flow field characteristic is poor.
The schematic representation of a kind of cross flow fan of the prior art has been shown among Fig. 1.Among the figure; Tubular wine wheel 21 is between vaporizer 24 and chassis spiral case 26; Chassis spiral case 26 is positioned at the top of tubular wine wheel 21, and vaporizer 24 is positioned at the below of tubular wine wheel 21, and preceding snail tongue 23 is between exhaust outlet section 27 and tubular wine wheel 21; Back snail tongue 22 be positioned at chassis spiral case 26 and tubular wine wheel 21 the most nearby, water receiving disc 25 is positioned at the below of vaporizer 24.CFD simulation velocity vector diagram such as Fig. 5 of the cross flow fan of this existing technology have marked velocity distribution of flow field with isocontour form among the figure, and Digital ID is represented flow velocity.Visible among the figure, the serious delamination of its flow field and runner, snail tongue place back-flow velocity is big; Can reach 9～10m/s, backflow phenomenon is serious, and the flow field is unstable; The fluid scouring impeller is serious, and eccentric snail yardstick is big, and the position is near the impeller center; It is excessive to reveal gas shock blade import scope, causes the impeller valid circulation area to reduce, and inside and outside flow field characteristic is poor.
The model utility content
The utility model is optimized the spiral case inwall molded lines of cross flow fan; Provide a kind of simple in structure, be convenient to install, thickness is little; Not only can adopt embedded installation, but also can adopt the indoor set of the split-type air conditioner that suspended ceiling installs; And have the air flue structure of optimization, air quantity is big, the cross flow fan that noise is low.
The utility model is realized through following technological scheme: a kind of cross flow fan comprises: tubular wine wheel; Internal surface is the chassis spiral case of curve, is located at the outside of tubular wine wheel; The chassis spiral case comprises: near the exhaust outlet section of exhaust outlet, near the intake grill section of intake grill, back snail tongue, be positioned at chassis spiral case and tubular wine wheel the most nearby, be connected between exhaust outlet section and the intake grill section, form bump; Vaporizer is arranged on the air intake oral-lateral of tubular wine wheel; Water receiving disc is arranged on the vaporizer below; Before the snail tongue, be arranged on exhaust outlet one end of water receiving disc, relatively be arranged on the air-out oral-lateral of tubular wine wheel with the exhaust outlet section of chassis spiral case, and and the exhaust outlet section of chassis spiral case between form exhaust outlet, preceding snail tongue has the curved surface towards tubular wine wheel; Intake grill and exhaust outlet all extend downwards; The air-out oral-lateral of water receiving disc also is provided with the exhaust outlet guide plate that the in the past lower direction of snail tongue extends below, and the longitudinal wall of exhaust outlet guide plate and preceding snail tongue forms a wind-guiding angle; The points of tangency of back snail tongue cross section curve and horizontal plane is a some A, the line of some A and tubular wine wheel central point O and pass through that formed angle is θ between the vertical line of central point O of tubular wine wheel, and 45 °≤θ≤55 °.
Further, the scope of the radius of curvature R of back snail tongue cross section curve is 2～10mm.
Further, preceding snail tongue cross section curve is crossed tubular wine wheel central point O and is done to hand over preceding snail tongue cross section curve in a H with the tangent tangent line of preceding snail tongue cross section curve near the terminal point F of intake grill one end, and some A, some F are θ with the ∠ AOF angle of some O formation
1, some A, some H are θ with the ∠ AOH angle that some O forms
2Angular range is 150 °≤θ
1≤170 °, 160 °≤θ
2≤180 °.
Further, the cross section molded lines towards a N-Side surf of tubular wine wheel of preceding snail tongue is the arc section with the concentric setting of tubular wine wheel.
Further, the line of the central point O of some F on the preceding snail tongue and tubular wine wheel and tubular wine wheel Vertical direction center line formation angle is θ
3, some H, it is θ that some F forms angle ∠ HOF with some O
4, 20 °≤θ of angular range
3≤30 °, 20 °≤θ of angular range
4≤30 °.
Further, be provided with a boss near the air intake oral-lateral at preceding snail tongue, the surface of boss and preceding snail tongue internal surface rounding off, the two-end-point of boss and tubular wine wheel central point O are that the formed angle in summit is θ
5, 2 °≤θ of angular range
5≤10 °.
Further, the radius of curvature R of boss cross section curve
1Scope be 0～10mm.
Further, the cross-section curve of chassis spiral case is the involute section that the center is provided with for the center of circle with tubular wine wheel; Cross-section curve comprises continuous BC curved section, CD curved section and DE curved section; The intersection points B of back snail tongue and involute section is θ with putting the ∠ BOA angle that A formed
6, 1 °≤θ of angular range
6≤10 °; The angle that the angle ∠ BOC of the central point O of BC curved section and tubular wine wheel is had is θ
7, 20 °≤θ of angular range
7≤40 °, the angle that the angle ∠ COD of the central point center O of CD curved section and tubular wine wheel is had is θ
8, 60 °≤θ of angular range
8≤80 °, the E point is the starting point of straightway of terminal point and exhaust outlet section of the cross-section curve section of chassis spiral case, and the angle that the angle ∠ DOE of DE curved section and blower fan center O is had is θ
9, angular range 40.≤θ
9≤60°。
Further, the angle that had of exhaust outlet Duan Yuqian snail tongue is θ
10, 6 °≤θ of angular range
10≤12 °.
Further, vaporizer is two folding vaporizers, and two folding vaporizer length are than 1.0～1.2, and shorter a slice is positioned at the top of water receiving disc in two vaporizers, and two to roll over the angle that is had between the vaporizers be θ
11, the angle that shorter a slice and tubular wine wheel central vertical line are had in two vaporizers is θ
12120 °≤θ of angular range
11≤160 °, 40 °≤θ of angular range
12≤70 °.
Through technique scheme, the major advantage of the utility model is the air flue structure that forms through between the tubular wine wheel of optimizing cross flow fan, chassis spiral case, preceding snail tongue, back snail tongue, exhaust outlet snail tongue and the vaporizer, and the guiding air intake gets into impeller; Reduce the leakage flow of snail tongue room, control the flowing state of snail tongue room leakage flow and, improve the air-inlet condition of the blade path of impeller inlet side in the percussion of snail back of tongue to impeller; Improve the interior flow field of cross flow fan, reduced the yardstick of the inner eccentric snail of impeller, and improved shape and the position of eccentric snail; Make eccentric snail diminish; Become circle, and, increased the inner valid circulation area of impeller near the impeller inward flange at outlet of snail tongue and snail tongue place; Improve air quantity, interior flow field is more stable.
Description of drawings
The accompanying drawing that constitutes the part of the utility model is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 shows the schematic representation of cross flow fan of the prior art;
Fig. 2 shows an embodiment's of the utility model the schematic representation of cross flow fan;
Fig. 3 shows an embodiment's of the utility model the schematic representation of cross flow fan;
Fig. 4 shows an embodiment's of the utility model the schematic representation of cross flow fan;
Fig. 5 shows the CFD simulation velocity vector diagram of cross flow fan of the prior art;
Fig. 6 shows the embodiment's 1 of the utility model the CFD simulation velocity vector of cross flow fan;
Fig. 7 shows the embodiment's 2 of the utility model the CFD simulation velocity vector of cross flow fan; And
Fig. 8 shows the embodiment's 3 of the utility model the CFD simulation velocity vector of cross flow fan.
Embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
An embodiment's of the utility model cross flow fan has been shown among Fig. 2, has comprised: tubular wine wheel 11; Internal surface is the chassis spiral case 6 of curve, is located at the outside of tubular wine wheel 1; Chassis spiral case 6 comprises: near the exhaust outlet section 7 of exhaust outlet, near the intake grill section of intake grill, back snail tongue 2, be positioned at chassis spiral case 6 and tubular wine wheel 1 the most nearby, be connected between exhaust outlet section 7 and the intake grill section, form bump; Vaporizer 4 is arranged on the inlet side of tubular wine wheel 1; Water receiving disc 5 is arranged on vaporizer 4 belows; Before snail tongue 3, be arranged on exhaust outlet one end of water receiving disc 5, relatively be arranged on the air-out oral-lateral of tubular wine wheel 1 with the exhaust outlet section 7 of chassis spiral case 6, and and the exhaust outlet section 7 of chassis spiral case 6 between form exhaust outlet, preceding snail tongue 3 has the curved surface towards tubular wine wheel 1; Intake grill and exhaust outlet all extend downwards; The air-out oral-lateral of water receiving disc 5 also is provided with the exhaust outlet guide plate 8 that the in the past lower direction of snail tongue 3 extends below, and exhaust outlet guide plate 8 forms a wind-guiding angle with the longitudinal wall of preceding snail tongue 3.The utility model has structurally increased wind deflector, and runner is made improvement.Improved the flowability in air channel.And the points of tangency of back snail tongue 2 cross section curves and horizontal plane is a some A, the line of some A and said tubular wine wheel 1 central point O and pass through that formed angle is θ between the vertical line of central point O of said tubular wine wheel 1, and 45 °≤θ≤55 °.This curve design guiding air intake gets into impeller; Reduce the leakage flow of snail tongue room; Control the flowing state of snail tongue room leakage flow and, improve the air-inlet condition of the blade path of impeller inlet side, improved the interior flow field of cross flow fan in the percussion of snail back of tongue to impeller.
Below, provide several specific embodiments:
Specific embodiment 1:
Shown in Fig. 3～4; The structural parameter of present embodiment mainly contain following some; The points of tangency of back snail tongue 2 cross section curves and horizontal plane is a some A, and preceding snail tongue 3 cross section curves are a some F near the terminal point of said intake grill one end, cross tubular wine wheel 1 central point O do with said before the tangent tangent line of snail tongue 3 cross section curves hand over said before snail tongue 3 cross section curves in a H; Angle theta=45 that some A and said tubular wine wheel 1 central vertical line are had °, the radius of curvature R=2.76mm of back snail tongue 2 cross section curves.Point A and the some ∠ AOF angle theta that F had
1=155 °, some A and the some ∠ AOH angle theta that H had
2=176 °.
The terminal point F of preceding snail tongue 3 and the line and the Vertical direction center line angle theta of through-flow center O
3=29 °, preceding snail tongue 3 depends on the angle ∠ HOF angle θ that is formed centrally in cross section molded lines and the blower fan of a N-Side surf of tubular wine wheel 1
4=21 °; The radius of curvature R of boss cross section curve
1=1mm, boss two-end-point and wind wheel central point are the angular range, theta of the angle on summit
5=4 °.
Chassis spiral case 6 mainly is made up of three sections curves, mainly is in order to control the diffusion degree of fluid in runner, to make runner more help fluid and flow; Wherein, The BC curved section is that one section distance with tubular wine wheel changes not quite basically, mainly is that the directed flow body can get into the runner between chassis spiral case and draught fan impeller better, the DE curved section mainly be control can with exhaust outlet section rounding off; Make fluid get into the exhaust outlet section more glibly; CD curved section two ends are connecting BC and DE curved section respectively, and main effect is to make the slick and sly connection of chassis spiral case, and guarantees that fluid is more smooth and easy under the traction of chassis spiral case.
The cross-section curve of chassis spiral case 6 is the involute section that the center of circle is provided with for the center of circle with tubular wine wheel 1; Cross-section curve comprises continuous BC curved section, CD curved section and DE curved section; Back snail tongue 2 is θ with the intersection points B of involute section with the some ∠ BOA angle that A formed
6, 1 °≤θ of angular range
6≤10 °; The angle that the angle ∠ BOC of the central point O of BC curved section and tubular wine wheel is had is θ
7, 20 °≤θ of angular range
7≤40 °, the angle that the angle ∠ COD of the central point 0 of CD curved section and tubular wine wheel is had is θ
8, 60 °≤θ of angular range
8≤80 °, the E point is the starting point of straightway of terminal point and exhaust outlet section 7 of the cross-section curve section of chassis spiral case 6, and the angle that the angle ∠ DOE of DE curved section and blower fan center O is had is θ
940 °≤θ of angular range
9≤60 °.
The CFD simulation vectors figure of present embodiment is Fig. 6, has marked velocity distribution of flow field with isocontour form among the figure, and Digital ID is represented flow velocity; Visible among the figure, to compare with CFD simulation velocity vector diagram Fig. 5 of existing technology, eccentric snail yardstick diminishes; More near tubular wine wheel 1 inboard and snail tongue, the backflow phenomenon at snail tongue place obviously reduces in the position, and tubular wine wheel 1 valid circulation area increases; The flow field is more smooth and easy, reveals the import of gas shock blade and weakens, and air quantity rises to 850m by original instability
3/ h.
Specific embodiment 2:
Shown in Fig. 3～4; The structural parameter of present embodiment more changing the time on embodiment 1 basis have following some; Angle theta=50 that back snail tongue 2 place's point A and tubular wine wheel 1 central vertical line are had °; Radius of curvature R=the 3.49mm of back snail tongue 2 cross section curves, some A and the some ∠ AOH angle theta that H had
2=177 °; The BC curved section is near the terminal point B of inlet side and the ∠ BOA angle theta between some A
6=5 °; The radius of curvature R of boss
1=1.2mm.
The CFD simulation velocity vector diagram of present embodiment is Fig. 7, has marked velocity distribution of flow field with isocontour form among the figure, and Digital ID is represented flow velocity; Wherein visible, the flow field is close with embodiment 1, but it is littler relatively to compare the eccentric snail yardstick of existing technology; Tubular wine wheel 1 valid circulation area increases, and the flow field is more smooth and easy, reveals gas shock; The blade import weakens, and air quantity rises to 873m
3/ h.
Shown in Fig. 3～4; The structural parameter of present embodiment more changing the time on embodiment 1 basis have following some; Angle theta=55 that back snail tongue 2 place's point A and tubular wine wheel 1 central vertical line are had °; Radius of curvature R=the 5.27mm of back snail tongue 2 cross section curves, some A and the some AOH angle theta that H had
2=177 °; The BC curved section is near the terminal point B of inlet side and the ∠ BOA angle theta between some A
6=5 °; The radius of curvature R of boss
1=1.15mm.
The CFD simulation velocity vector diagram of present embodiment is Fig. 8, has marked velocity distribution of flow field with isocontour form among the figure, and Digital ID is represented flow velocity; Wherein visible, eccentric snail yardstick is littler relatively, and tubular wine wheel 1 valid circulation area increases; Flow field, air intake place is more smooth and easy, and air quantity rises to 884m
3/ h.
According to the cross flow fan of the utility model, have following beneficial effect:
At first, the major advantage of the utility model is the air flue structure that forms through between the tubular wine wheel of optimizing cross flow fan, chassis spiral case, preceding snail tongue, back snail tongue, exhaust outlet snail tongue and the vaporizer, and the guiding air intake gets into tubular wine wheel; Reduce the leakage flow of snail tongue room, control the flowing state of snail tongue room leakage flow and, improve the air-inlet condition of the blade path of tubular wine wheel inlet side in the percussion of snail back of tongue to tubular wine wheel; Improve the interior flow field of cross flow fan, reduced the yardstick of the inner eccentric snail of tubular wine wheel, and improved shape and the position of eccentric snail; Make eccentric snail diminish; Become circle, and, increased the inner valid circulation area of tubular wine wheel near the tubular wine wheel inward flange at outlet of snail tongue and snail tongue place; Improve air quantity, interior flow field is more stable.
Secondly, the cross flow fan structure is after optimizing, and eccentric snail yardstick obviously diminishes; The position is the inboard and snail tongue near tubular wine wheel more, and the backflow phenomenon at snail tongue place obviously reduces, and the tubular wine wheel valid circulation area increases; Air quantity obtains to promote, and the flow field is more smooth and easy, reveals the import of gas shock blade and weakens.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. cross flow fan comprises:
Tubular wine wheel (1);
Internal surface is the chassis spiral case (6) of curve, is located at the outside of said tubular wine wheel (1); Said chassis spiral case (6) comprising: near the exhaust outlet section (7) of exhaust outlet; Near the intake grill section of intake grill, back snail tongue (2), be positioned at said chassis spiral case (6) and said tubular wine wheel (1) the most nearby; Be connected between said exhaust outlet section (7) and the said intake grill section, form bump;
Vaporizer (4) is arranged on the air intake oral-lateral of said tubular wine wheel (1);
Water receiving disc (5) is arranged on said vaporizer (4) below;
Preceding snail tongue (3); Be arranged on the air-out oral-lateral of said water receiving disc (5); Relatively be arranged on the air-out oral-lateral of said tubular wine wheel (1) with the said exhaust outlet section (7) of said chassis spiral case (6); And and the said exhaust outlet section (7) of said chassis spiral case (6) between form said exhaust outlet, said before snail tongue (3) have curved surface towards said tubular wine wheel (1)
It is characterized in that,
Said intake grill and said exhaust outlet all extend downwards;
The air-out oral-lateral of said water receiving disc (5) also is provided with the exhaust outlet guide plate (8) that extends below from the lower direction of said preceding snail tongue (3), and said exhaust outlet guide plate (8) forms a wind-guiding angle with the longitudinal wall of said preceding snail tongue (3);
Said back snail tongue (2) cross section curve is a some A with the points of tangency of horizontal plane, and formed angle is θ between the vertical line of the central point O of the line of some A and said tubular wine wheel (1) central point O and the said tubular wine wheel of process (1), and 45 °≤θ≤55 °.
2. cross flow fan according to claim 1 is characterized in that, the scope of the radius of curvature R of said back snail tongue (2) cross section curve is 2～10mm.
3. cross flow fan according to claim 2; It is characterized in that; Snail tongue (3) cross section curve is near the terminal point F of said intake grill one end before said; Cross said tubular wine wheel (1) central point O and do to hand over said preceding snail tongue (3) cross section curve in a H with the tangent tangent line of said preceding snail tongue (3) cross section curve, the ∠ AOF angle of some A, some F and some O formation is θ
1, some A, some H are θ with the ∠ AOH angle that some O forms
2And angular range is 150 °≤θ
1≤170 °, 160 °≤θ
2≤180 °.
4. cross flow fan according to claim 3 is characterized in that, said before the cross section molded lines towards a N-Side surf of said tubular wine wheel (1) of snail tongue (3) be the arc section with the concentric setting of said tubular wine wheel (1).
5. cross flow fan according to claim 4 is characterized in that, it is θ that the line of the said some F on the said preceding snail tongue (3) and the central point O of said tubular wine wheel (1) and said tubular wine wheel (1) Vertical direction center line form angle
3, said some H, it is θ that said some F and said some O form angle ∠ HOF
4, 20 °≤θ of angular range
3≤30 °, 20 °≤θ of angular range
4≤30 °.
6. cross flow fan according to claim 1; It is characterized in that; Snail tongue (3) is provided with a boss near the air intake oral-lateral before said; The surface of said boss and said preceding snail tongue (3) internal surface rounding off, the central point O of the two-end-point of said boss and said tubular wine wheel (1) is that the formed angle in summit is θ
5, 2 °≤θ of angular range
5≤10 °.
7. cross flow fan according to claim 6 is characterized in that, the radius of curvature R of the cross section curve of said boss
1Scope be 0～10mm.
8. cross flow fan according to claim 1 is characterized in that, the cross-section curve of said chassis spiral case (6) is the involute section that the center is provided with for the center of circle with said tubular wine wheel (1); Said cross-section curve comprises continuous BC curved section, CD curved section and DE curved section; Said back snail tongue (2) is θ with the intersection points B of said involute section with the some ∠ BOA angle that A formed
6, 1 °≤θ of angular range
6≤10 °; The angle that the angle ∠ BOC of the central point O of BC curved section and said tubular wine wheel (1) is had is θ
7, 20 °≤θ of angular range
7≤40 °, the angle that the angle ∠ COD of the center O of CD curved section and said tubular wine wheel (1) is had is θ
8, 60 °≤θ of angular range
8≤80 °, the E point is the starting point of straightway of terminal point and said exhaust outlet section (7) of the cross-section curve section of said chassis spiral case (6), and the angle that the angle ∠ DOE of the central point O of DE curved section and said tubular wine wheel (1) is had is θ
9, 40 °≤θ of angular range
9≤60 °.
9. cross flow fan according to claim 1 is characterized in that, said exhaust outlet section (7) is θ with the angle that said preceding snail tongue (3) is had
10, 6 °≤θ of angular range
10≤12 °.
10. cross flow fan according to claim 1; It is characterized in that; Said vaporizer (4) is two folding vaporizers; Two folding vaporizer length are than 1.0～1.2, and shorter a slice is positioned at the top of said water receiving disc (5) in two said vaporizers (4), and the angle that is had between the said two folding vaporizers (4) is θ
11, the angle that shorter a slice and said tubular wine wheel (1) central vertical line are had in two said vaporizers (4) is θ
12120 °≤θ of angular range
11≤160 °, angular range is 40 °≤θ
12≤70 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120267374U CN202140322U (en) | 2011-07-26 | 2011-07-26 | Cross-flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120267374U CN202140322U (en) | 2011-07-26 | 2011-07-26 | Cross-flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140322U true CN202140322U (en) | 2012-02-08 |
Family
ID=45551380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120267374U Expired - Lifetime CN202140322U (en) | 2011-07-26 | 2011-07-26 | Cross-flow fan |
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| Country | Link |
|---|---|
| CN (1) | CN202140322U (en) |
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| CN102644974A (en) * | 2012-05-18 | 2012-08-22 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN102644975A (en) * | 2012-05-18 | 2012-08-22 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN102900676A (en) * | 2011-07-26 | 2013-01-30 | 珠海格力电器股份有限公司 | Cross-flow fan |
| CN103334957A (en) * | 2013-07-28 | 2013-10-02 | 向运明 | Air passage for cross-flow fan |
| CN103851692A (en) * | 2012-11-28 | 2014-06-11 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN105402821A (en) * | 2015-12-30 | 2016-03-16 | 海信（山东）空调有限公司 | Air conditioner indoor unit |
| CN107702306A (en) * | 2017-10-30 | 2018-02-16 | 四川长虹空调有限公司 | Air conditioner room unit snail tongue and air conditioner room unit |
| CN110529924A (en) * | 2019-09-20 | 2019-12-03 | 珠海格力电器股份有限公司 | Air duct assembly and device with same |
| CN112524093A (en) * | 2019-09-17 | 2021-03-19 | 广东美的环境电器制造有限公司 | Air guide assembly and air supply device |
| CN114877513A (en) * | 2022-05-30 | 2022-08-09 | 海信（广东）空调有限公司 | Indoor machine of air conditioner |
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2011
- 2011-07-26 CN CN201120267374U patent/CN202140322U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900676A (en) * | 2011-07-26 | 2013-01-30 | 珠海格力电器股份有限公司 | Cross-flow fan |
| CN102900676B (en) * | 2011-07-26 | 2015-08-12 | 珠海格力电器股份有限公司 | Cross-flow fan |
| CN102644974A (en) * | 2012-05-18 | 2012-08-22 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN102644975A (en) * | 2012-05-18 | 2012-08-22 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN103851692A (en) * | 2012-11-28 | 2014-06-11 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN103334957A (en) * | 2013-07-28 | 2013-10-02 | 向运明 | Air passage for cross-flow fan |
| CN105402821A (en) * | 2015-12-30 | 2016-03-16 | 海信（山东）空调有限公司 | Air conditioner indoor unit |
| CN105402821B (en) * | 2015-12-30 | 2018-06-12 | 海信（山东）空调有限公司 | A kind of air conditioner indoor unit |
| CN107702306A (en) * | 2017-10-30 | 2018-02-16 | 四川长虹空调有限公司 | Air conditioner room unit snail tongue and air conditioner room unit |
| CN107702306B (en) * | 2017-10-30 | 2024-01-30 | 四川长虹空调有限公司 | Volute tongue for air conditioner indoor unit and air conditioner indoor unit |
| CN112524093A (en) * | 2019-09-17 | 2021-03-19 | 广东美的环境电器制造有限公司 | Air guide assembly and air supply device |
| CN110529924A (en) * | 2019-09-20 | 2019-12-03 | 珠海格力电器股份有限公司 | Air duct assembly and device with same |
| CN114877513A (en) * | 2022-05-30 | 2022-08-09 | 海信（广东）空调有限公司 | Indoor machine of air conditioner |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120208 Effective date of abandoning: 20150812 |
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| RGAV | Abandon patent right to avoid regrant |