CN108916116A - Volute tongue, volute tongue control method, cross-flow fan and air conditioner - Google Patents
Volute tongue, volute tongue control method, cross-flow fan and air conditioner Download PDFInfo
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- CN108916116A CN108916116A CN201810668479.4A CN201810668479A CN108916116A CN 108916116 A CN108916116 A CN 108916116A CN 201810668479 A CN201810668479 A CN 201810668479A CN 108916116 A CN108916116 A CN 108916116A
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- drainage
- channel
- volute tongue
- tongue
- drainage channel
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 239000000178 monomer Substances 0.000 claims description 35
- 230000008676 import Effects 0.000 claims description 19
- 230000006978 adaptation Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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
- F04D29/44—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a volute tongue, a volute tongue control method, a cross-flow fan and an air conditioner. The volute tongue comprises a volute tongue body, wherein the volute tongue body is provided with a drainage wall, a tongue inner flow surface and a drainage channel, the drainage channel extends from the drainage wall to the tongue inner flow surface so as to guide the airflow part at the drainage wall to the tongue inner flow surface, and the volute tongue further comprises a channel opening and closing mechanism which is used for controlling the opening or closing of the drainage channel. According to the volute tongue and the volute tongue control method, the cross-flow fan and the air conditioner, the volute tongue is particularly suitable for machine types with different rotating speeds, and the drainage channel of the volute tongue can be selectively opened or closed, so that the volute tongue has a wider impeller rotating speed adaptation range, the noise of the cross-flow fan is effectively reduced, and the performance attenuation of the fan is favorably prevented.
Description
Technical field
The invention belongs to air-conditioning technique fields, and in particular to a kind of volute tongue and volute tongue control method, cross flow fan, sky
Adjust device.
Background technique
All the time, volute tongue noise is a major issue for influencing cross flow fan noise, for this using single drainage
Tongue air-flow is adjusted in channel or more drainage channels, but for different types, rotation speed change wider range, due to drawing
Circulation road is different from the distance between impeller, leads to the throughput (drainage or tonifying Qi effect) of each drainage channel also phase not to the utmost
Together or even difference is very big, specifically, the air compensation of the drainage channel closer apart from impeller is maximum, with drainage channel and impeller
The increase of distance, then the corresponding air compensation of drainage channel is also gradually decayed, and how reasonable group will be carried out between each drainage channel
Close, guarantee cross flow fan in the case where different rotating speeds, noise eliminate aspect effect is optimal and decaying to fan performance
It is smaller, it is always a problem, the present invention is namely based on this problem and proposes.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that providing a kind of volute tongue and volute tongue control method, cross flow fan, sky
Device is adjusted, the type different especially suitable for revolving speed can be selectively turned on or be closed to the drainage channel that volute tongue has, from
And make volute tongue that there is wider wheel speed adaptation range, the noise of cross flow fan is effectively reduced, is beneficial to prevent fan performance
Decaying.
To solve the above-mentioned problems, the present invention provides a kind of volute tongue, including volute tongue ontology, and the volute tongue ontology has drainage
Wall, tongue inner flow surface, drainage channel, the drainage channel are extended from the drainage wall to the tongue inner flow surface, will be described
Airflow portion at drainage wall guides the tongue inner flow surface into, further includes channel mechanism for opening/closing, the channel mechanism for opening/closing is used for
Control turning on or off for the drainage channel.
It preferably, is the first plane perpendicular to the plane of the axis of impeller, the drainage wall, tongue inner flow surface pass through air-flow
Grouping teaching connection, the projection of the airflow diversion face on the first plane forms the first circular arc, by first circular arc
The heart has the first line segment, and for first line segment perpendicular to the drainage wall, the drainage wall forms the in the projection of the first plane
Two line segments, first line segment and second line segment intersect at first point, and the drainage wall is lighted from first to be had along air-out direction
First length is L, and it is first interval that the drainage wall within the scope of 0-60%L is lighted from first, has described draw on the drainage wall
The import of circulation road, the import are arranged in the first interval.
Preferably, the first interval includes second interval, and it is second that the drainage wall within the scope of 0-40%L is lighted from first
Section, the import are arranged in the second interval.
Preferably, the drainage channel is curved channel.
Preferably, the drainage channel has the first tangent line, first tangent line and close impeller one in the entrance
The drainage wall of side forms air-flow deflection angle A, 0 ° of 90 ° of < A <.
Preferably, 0 ° of 50 ° of < A <.
Preferably, the drainage channel is at least three, and at least three drainage channel is along impeller axial direction in institute
It states staggered on drainage wall.
Preferably, the drainage channel is at least three, and at least three drainage channel draws along air-out direction described
It flows staggered on wall.
Preferably, the number of the drainage channel is k, 3≤k, and the k drainage channel is successively set along the radial direction of impeller
It sets.
Preferably, 3≤k≤5.
Preferably, the volute tongue ontology includes k+1 tongue body monomer, respectively the first monomer, second comonomer ..., kth+1
Monomer, first monomer, second comonomer ... ,+1 monomer of kth be radially arranged successively in impeller, two adjacent tongue body lists
A drainage channel is formed between body, forms the k drainage channels between the k+1 tongue body monomers altogether, respectively
First passage, second channel ..., kth channel, the first passage, second channel ..., kth channel along the impeller radial direction
On successively lay, the channel mechanism for opening/closing is k group, and channel mechanism for opening/closing described in every group controls each drainage respectively
Channel turns on or off, the k group channel mechanism for opening/closing respectively correspond the opening for controlling the k drainage channels or
Person closes.
Preferably, the channel mechanism for opening/closing includes drive rod, driving part, and the driving part passes through the drive rod
Reciprocating motion of the tongue body monomer in the impeller radially is driven, to realize turning on or off for the drainage channel.
Preferably, the drive rod has threaded hole, and the driving part includes motor, the output end of the motor and institute
Threaded hole threaded connection is stated, when motor operating, what the motor was engaged by output end with the screw thread of the drive rod
Circular motion is converted into the reciprocating motion of the tongue body monomer.
Preferably, the side of the volute tongue ontology has anticreep sliding slot, further includes guide plate, has on the guide plate and slides
Row raised line, the raised line that slides matchingly are slidably connected with the anticreep sliding slot.
Preferably, the channel mechanism for opening/closing includes electric control one-way valve, and it is logical that the electric control one-way valve is set to the drainage
In road.
Preferably, the electric control one-way valve is set to the inlet port of the drainage channel.
The present invention also provides a kind of cross flow fans, including above-mentioned volute tongue.
The present invention also provides a kind of air conditioners, including above-mentioned cross flow fan.
The present invention also provides a kind of volute tongue control methods, for controlling above-mentioned volute tongue, which is characterized in that including following step
Suddenly：
A. select tonifying Qi gear i, wherein i=1,2,3 ..., k；
B. control is turned on or off with the tonifying Qi gear i drainage channel to match.
Preferably, when channel, mechanism for opening/closing includes drive rod, driving part, control driving part operating, so that driving
Component drives reciprocating motion of the tongue body monomer in impeller radially by drive rod, beats on or off with realize drainage channel
It closes.
Preferably, it when channel mechanism for opening/closing includes electric control one-way valve, controls each electric control one-way valve conducting or closing is drawn
Circulation road.
Preferably, as k=5, tonifying Qi gear i is obtained, i is equal to any one in 1,2,3,4,5, is the as i=5
It five grades, controls five drainage channels and is all turned on；It is fourth gear as i=4, controls any four in five drainage channels and open
It opens, a remaining drainage channel is closed；It is third gear as i=3, controls any three unlatchings in five drainage channels, remain
Two remaining drainage channels are closed；It is second gear as i=2, controls any two in five drainage channels and open, remaining three
A drainage channel is closed；It is first grade as i=1, controls any one in five drainage channels and open, remaining four drainages
Channel is closed.
Preferably, as k=4, tonifying Qi gear i is obtained, i is equal to any one in 1,2,3,4, is the 4th as i=4
Gear, controls four drainage channels and is all turned on；It is third gear as i=3, controls any three unlatchings in four drainage channels,
A remaining drainage channel is closed；It is second gear as i=2, controls any two in four drainage channels and open, it is remaining
Two drainage channels are closed；It is first grade as i=1, controls any one in four drainage channels and open, remaining three are drawn
Circulation road is closed.
Preferably, as k=3, tonifying Qi gear i is obtained, i is equal to any one in 1,2,3, is third as i=3
Gear, controls three drainage channels and is all turned on；It is second gear as i=2, controls any two in three drainage channels and open,
A remaining drainage channel is closed；It is first grade as i=1, controls any one in three drainage channels and open.
A kind of volute tongue provided by the invention and volute tongue control method, cross flow fan, air conditioner, due to being provided with the channel
Mechanism for opening/closing, make impeller rotate caused by air-flow by alternatively through the entrance in the drainage channel by by drainage wall
It guides at tongue inner flow surface, and drops the circumferential revolving speed of impeller at the small spacing of the tongue finally between impeller and tongue inner flow surface
It is low, to reduce the noise of cross flow fan or even the air conditioner using it, due to using the channel mechanism for opening/closing, make institute
Stating drainage channel can be turned on or off according to the progress of the revolving speed of impeller is matched, this makes the drainage channel in wind speed (this
It is related to the selection of wheel speed) in the case where variation, more can specific aim adjust the circumferential revolving speed of the impeller and be effectively reduced and pass through
The noise of flow fan, to make volute tongue that there is wider wheel speed adaptation range, on the other hand, due to opening for the property of can choose
The drainage channel is closed, specifically, can open less number in the lesser situation of wheel speed or bleed effect is lower
Drainage channel, and the remaining drainage channel is closed, so as to guarantee blower outlet air performance, is beneficial to prevent blower
Performance degradation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the volute tongue of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the volute tongue of another embodiment of the present invention；
Fig. 3 is the partial structural diagram of volute tongue drainage wall in the direction B along Fig. 2 of the embodiment of the present invention；
Fig. 4 is the partial structural diagram of volute tongue drainage wall in the direction B along Fig. 2 of yet another embodiment of the invention；
Fig. 5 is the partial structural diagram of volute tongue drainage wall in the direction B along Fig. 2 of further embodiment of this invention；
Fig. 6 is the partial structural diagram of volute tongue drainage wall in the direction B along Fig. 2 of further embodiment of this invention.
Appended drawing reference is expressed as：
1, volute tongue ontology；11, wall is drained；12, tongue inner flow surface；13, drainage channel；131, import；14, tongue body monomer；
17, airflow diversion face；2, impeller；3, drive rod；4, the small spacing of tongue.
Specific embodiment
In conjunction with referring to shown in Fig. 1 to 6, according to an embodiment of the invention, a kind of volute tongue is provided, including volute tongue ontology 1, it is described
Volute tongue ontology 1 have drainage wall 11, tongue inner flow surface 12, drainage channel 13, the drainage channel 13 from the drainage wall 11 to
The tongue inner flow surface 12 extends, and guides the airflow portion at the drainage wall 11 into the tongue inner flow surface 12, further includes
Channel mechanism for opening/closing, the channel mechanism for opening/closing is for controlling turning on or off for the drainage channel 13.The technical solution
In, due to being provided with the channel mechanism for opening/closing, impeller 2 is made to rotate generated air-flow by alternatively through logical in the drainage
Guided at tongue inner flow surface 12 at the import 131 in road 13 by drainage wall 11, and finally impeller 2 and tongue inner flow surface 12 it
Between the small spacing 4 of tongue at the circumferential revolving speed of impeller 2 is reduced, to reduce its air conditioner of cross flow fan or even application
Noise carries out the drainage channel 13 according to the revolving speed of impeller 2 matched due to using the channel mechanism for opening/closing
It is turned on or off, this makes the drainage channel 13 in the case where wind speed (this is related to the selection of 2 revolving speed of impeller) variation, more
The noise of cross flow fan is effectively reduced in the circumferential revolving speed that energy specific aim adjusts the impeller 2, so that volute tongue be made to have wider leaf
Wheel speed adaptation range, on the other hand, due to the opening and closing for the property of the can choose drainage channel 13, specifically, in wheel speed
In lesser situation, less number or the lower drainage channel 13 of bleed effect can be opened, and by the remaining drainage
Channel 13 is closed, and so as to guarantee blower outlet air performance, is beneficial to prevent fan performance decaying.
In order to increase airflow reflux to the influence degree of the circumferential revolving speed of the impeller 2, the import of the drainage channel 13
131 should be arranged in the drainage wall 11 in the region of 2 side of impeller, specifically, the plane of the axis perpendicular to impeller 2
For the first plane, the drainage wall 11, tongue inner flow surface 12 are connected by airflow diversion face 17, and the airflow diversion face 17 is the
Projection in one plane forms the first circular arc, has the first line segment by the center of first circular arc, first line segment hangs down
Directly in the drainage wall 11, the drainage wall 11 forms second line segment, first line segment and second in the projection of the first plane
For line segment intersection at first point, the drainage wall 11 is lighted from first has the first length for L along air-out direction, lights 0- from first
Drainage wall 11 within the scope of 60%L is first interval, the import 131 with the drainage channel 13 on the drainage wall 11, institute
Import 131 is stated to be arranged in the first interval.Further, the first interval includes second interval, is lighted from first
Drainage wall 11 within the scope of 0-40%L is second interval, and the import 131 is arranged in the second interval.
In order to reduce the on-way resistance of the drainage channel 13 as far as possible, it is preferable that the drainage channel 13 is arc
Channel, curved channel herein can be the round and smooth junction curve of the camber line of multistage different curvature radius, and the round and smooth song certainly
Line should toward the curving of impeller 2, further, using single-curvature radius camber line then more preferably, at this point, described draw
The on-way resistance of circulation road 13 will further decrease, this can undoubtedly further increase the air-flow in drainage channel 13 to tongue
Airflow influence at small spacing 4, and then further decrease the noise that the cross flow fan is waited at runtime.
In order to fully utilize the wind speed of impeller 2, it is preferable that the drainage channel 13 has at the import 131
There is the first tangent line, first tangent line and the drainage wall 11 close to 2 side of impeller form air-flow deflection angle A, 0 ° of < A <
90 °, further, 0 ° of 50 ° of < A <, more specifically, the A is closer to 0 °, and the outlet air of the impeller 2 is in import
Wind speed at 131 is higher, and the circumferential revolving speed of impeller 2 undoubtedly will be further reduced in this, is more conducive to reducing through-flow certainly
The noise of blower or even air conditioner.
Preferably, the drainage channel 13 is at least three, and at least three drainage channel 13 is along 2 axial direction of impeller
It is staggered on the drainage wall 11；Further, the drainage channel 13 is at least three, and at least three drainage is logical
Road 13 is staggered on the drainage wall 11 along air-out direction, further, two drainage channels 13 adjacent to each other it
Between distance can be equal, be also possible to not equal, this is conducive to during the manufacturing according to different blowers
Necessary adjustment can be carried out to the spacing of the drainage channel 13, there is stronger specific aim, be more conducive to reducing through-flow wind
The noise of machine.
It for the number of the drainage channel 13, can be set according to actual needs, it is contemplated that utilize each drainage
Gradual control combination between channel 13, it is preferable that the number of the drainage channel 13 is k, 3≤k, and the k drainage is logical
Road 13 is set gradually along the radial direction of impeller 2, is caused to simplify the manufacturing process of volute tongue, be also prevented from the excessive drainage channel 13 of setting
The rigidity of volute tongue ontology 1 reduces, further, 3≤k≤5.
For the drainage channel 13, a kind of generation type be can be using directly setting on the volute tongue ontology 1
The form in channel is set, the position of this mode is relatively fixed, and corresponding channel mechanism for opening/closing form is hereinafter separately described,
Another way can be, the volute tongue ontology 1 includes k+1 tongue body monomer 14, respectively the first monomer, second comonomer ...,
+ 1 monomer of kth, first monomer, second comonomer ... ,+1 monomer of kth be radially arranged successively in impeller 2, adjacent two
A drainage channel 13 is formed between tongue body monomer 14, forms the k drainages between the k+1 tongue body monomers 14 altogether
Channel 13, respectively first passage, second channel ..., kth channel, the first passage, second channel ..., kth channel edge
The impeller 2 is radially successively laid, and the channel mechanism for opening/closing is k group, and channel mechanism for opening/closing described in every group controls respectively
Each drainage channel 13 turns on or off, and the k group channel mechanism for opening/closing respectively corresponds the control k institute
State turning on or off for drainage channel 13.
A kind of specific embodiment as the channel mechanism for opening/closing, it is preferable that the channel mechanism for opening/closing includes passing
Lever 3, driving part (not shown), the driving part drive the tongue body monomer 14 in institute by the drive rod 3
The reciprocating motion of impeller 2 radially is stated, to realize turning on or off for the drainage channel 13, this kind of mode can pass through
It controls the driving that the driving part carries out relative position to each tongue body monomer 14 to change, makes two tongue body lists adjacent to each other
The drainage channel 13 formed between body 14 turns on or off, and implementation is novel, simple.
Further, the drive rod 3 has threaded hole, and the driving part includes motor, the output of the motor
End is threadedly coupled with the threaded hole, and when motor operating, the motor passes through the screw thread of output end and the drive rod 3
The circular motion of engagement is converted into the reciprocating motion of the tongue body monomer 14, realizes the tongue body monomer using the control to motor
14 movement is upper simpler easy in control.
In order to guarantee the controllability of reliability and motion profile between each tongue body monomer 14 in movement, Ying Bao
Demonstrate,prove between each tongue body monomer 14 one entirety of formation, for example, by each tongue body monomer 14 be slidably attached at one it is common
On pedestal, it is preferable that the side of the volute tongue ontology 1 has anticreep sliding slot, further includes guide plate (not shown), described to lead
Have on plate and slide raised line, the raised line that slides matchingly is slidably connected with the anticreep sliding slot.
As described above, a kind of generation type of the drainage channel 13 can be using directly on the volute tongue ontology 1
The form in channel is set, for such situation, it is preferable that the channel mechanism for opening/closing includes that electric control one-way valve (does not show in figure
Out), the electric control one-way valve is set in the drainage channel 13, using the electric control one-way valve to the drainage channel 13 into
Row opening and closing control is simpler.
In order to guarantee the fast opening and closing to air-flow in the drainage channel 13, it is preferable that the electric control one-way valve is set to
The import 131 of the drainage channel 13, at this point, can have since the import 131 of drainage channel 13 is arranged in the electric control one-way valve
Effect prevent to volute tongue outlet air influence (prevent drainage channel 13 close in the case where air-flow still flow into the electric control one-way valve with
In channel between 13 import 131 of drainage channel).
According to an embodiment of the invention, also provide a kind of cross flow fan, including above-mentioned volute tongue, can gradual control draw
The opening and closing of circulation road 13 is matched with the revolving speed of impeller 2, can guarantee that the cross flow fan is made an uproar in the tongue of the full range of speeds
Sound is controlled, while avoiding the problem that fan performance is substantially decayed.
According to an embodiment of the invention, also provide a kind of air conditioner, including above-mentioned cross flow fan, control that can be gradual
The opening and closing of drainage channel 13 is matched with the revolving speed of impeller 2, and the cross flow fan can be guaranteed in the tongue of the full range of speeds
Noise is controlled, while avoiding the problem that fan performance is substantially decayed.
According to an embodiment of the invention, for controlling above-mentioned volute tongue, being wrapped the present invention also provides a kind of volute tongue control method
Include following steps：
A. select tonifying Qi gear i, wherein i=1,2,3 ..., k；
B. control is turned on or off with the tonifying Qi gear i drainage channel 13 to match.
Through the above steps, can be after selecting tonifying Qi gear i, what the tonifying Qi gear i of real-time control and selection matched draws
The opening and closing of circulation road 13, further, the tonifying Qi gear i are directly related with (blower) revolving speed of impeller 2, and tonifying Qi gear i
Gear number that be then to the number k of the drainage channel 13 in the volute tongue ontology 1 be is relevant, highest gear i is equal to drainage
The number in channel 13, specifically, when the number of drainage channel 13 is 5 (k=5), tonifying Qi gear i=1,2,3,4,5, namely mend
Gas gear is divided into 5 grades, respectively fifth speed, fourth speed, third gear, second gear, first grade, and wherein fifth speed corresponds to impeller 2
The revolving speed of revolving speed highest, first grade of corresponding impeller 2 is minimum, and in terms of the matching of tonifying Qi gear i and drainage channel 13, fifth speed will
Corresponding five drainage channels 13 are fully open, at this point, drainage effect is best (air compensation is maximum), and first grade is drawn corresponding five
Any one in circulation road 13 is opened, and remaining four closings, at this time since 2 revolving speed of impeller is minimum, volute tongue noise is accordingly minimum,
With lesser air compensation, reaction will not be played to the revolving speed of impeller 2, the decaying of blower outlet air performance will not be caused.
In order to make above-mentioned control method definitely, the matching below in conjunction with item the number k and i of drainage channel 13 is carried out in detail
It illustrates.
For example, obtaining tonifying Qi gear i as k=5, i is equal to any one in 1,2,3,4,5, is the 5th as i=5
Shelves, control five drainage channels 13 and are all turned on；It is fourth gear as i=4, controls any four in five drainage channels 13 and open
It opens, a remaining drainage channel 13 is closed；It is third gear as i=3, controls in five drainage channels 13 any three and open
It opens, remaining two drainage channels 13 are closed；It is second gear as i=2, controls any two in five drainage channels 13 and open
It opens, remaining three drainage channels 13 are closed；It is first grade as i=1, controls any one in five drainage channels 13 and open
It opens, remaining four drainage channels 13 are closed.It can be seen from background technology that smaller apart from the more remote then tonifying Qi effect of impeller 2, apart from leaf
It is stronger to take turns 2 more close then tonifying Qi effects, it for ease of description, will be by farthest apart from impeller 2 the case where for five drainage channel 13
To nearest Five-channel, fourth lane, third channel, second channel, first passage, it is successively denoted as A, B, C, D, E, thus may be used
To learn, as i=5, A, B, C, D, E are opened entirely；As i=4, A, B, C, D open E and close, and close alternatively, A, B, C, E open D
It closes, is closed alternatively, A, B, D, E open C, B is closed or B, C, D, E open A and close alternatively, A, C, D, E are opened；When i=3, A,
B, C opens D, E and closes, and closes alternatively, A, B, D open C, E, closes alternatively, A, B, E open C, D, alternatively, B, C, D open A, E
It closes, is closed alternatively, B, C, E open A, D, closed alternatively, C, D, E open A, B, closed alternatively, A, C, D open B, E, alternatively,
A, C, E open B, D and close, and close alternatively, A, D, E open B, C, close alternatively, B, D, E open A, C；When i=2, A, B, C are closed
D, E is opened, and is opened alternatively, A, B, D close C, E, is opened alternatively, A, B, E close C, D, is opened alternatively, B, C, D close A, E, or
Person, B, C, E close A, D and open, and open alternatively, C, D, E close A, B, open alternatively, A, C, D close B, E, alternatively, A, C, E are closed
B, D opening are closed, is opened alternatively, A, D, E close B, C, is opened alternatively, B, D, E close A, C；Work as i=1, A, B, C, D close E and beat
Open, alternatively, A, B, C, E close D open, alternatively, A, B, D, E close C open, alternatively, A, C, D, E close B open or B, C,
D, E closes A and opens.It can be seen that the opening and closing of the drainage channel 13 of volute tongue can incrementally be controlled using this control method,
It is understood that being more proximate to the combination of the drainage channel 13 of impeller 2, tonifying Qi effect will more preferably, it will also be appreciated that
When 2 revolving speed of impeller is larger (tonifying Qi gear i is also corresponding higher), preferably adjacent to the combination of the drainage channel 13 of impeller 2.
Preferably, as k=4, tonifying Qi gear i is obtained, i is equal to any one in 1,2,3,4, is the 4th as i=4
Gear, controls four drainage channels 13 and is all turned on；It is third gear as i=3, controls in four drainage channels 13 any three and open
It opens, a remaining drainage channel 13 is closed；It is second gear as i=2, controls any two in four drainage channels 13 and open
It opens, remaining two drainage channels 13 are closed；It is first grade as i=1, controls any one in four drainage channels 13 and open
Open, remaining three drainage channels 13 are closed, specific matching way with can similarly be obtained when i=5, details are not described herein again.
Preferably, as k=3, tonifying Qi gear i is obtained, i is equal to any one in 1,2,3, is third as i=3
Gear, controls three drainage channels 13 and is all turned on；It is second gear as i=2, controls any two in three drainage channels 13 and open
It opens, a remaining drainage channel 13 is closed；It is first grade as i=1, controls any one in three drainage channels 13 and open
Open, specific matching way with can similarly be obtained when i=5, details are not described herein again.
Preferably, when channel, mechanism for opening/closing includes drive rod 3, driving part, control driving part operating, so that driving
Component drives reciprocating motion of the tongue body monomer 14 in impeller 2 radially by drive rod 3, with realize drainage channel 13 opening or
Person closes.
Preferably, it when channel mechanism for opening/closing includes electric control one-way valve, controls each electric control one-way valve conducting or closing is drawn
Circulation road 13.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.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 guarantor of the invention
Protect range.
Claims (24)
1. a kind of volute tongue, which is characterized in that including volute tongue ontology (1), the volute tongue ontology (1) has drainage wall (11), tongue
Inner flow surface (12), drainage channel (13), the drainage channel (13) is from the drainage wall (11) to the tongue inner flow surface (12)
Extend, guide the airflow portion at drainage wall (11) into the tongue inner flow surface (12), further include channel mechanism for opening/closing,
The channel mechanism for opening/closing is for controlling turning on or off for the drainage channel (13).
2. volute tongue according to claim 1, which is characterized in that the plane perpendicular to the axis of impeller (2) is the first plane,
The drainage wall (11), tongue inner flow surface (12) are connected by airflow diversion face (17), and the airflow diversion face (17) is first
Projection in plane forms the first circular arc, has the first line segment by the center of first circular arc, first line segment is vertical
In the drainage wall (11), drainage wall (11) forms second line segment, first line segment and in the projection of the first plane
Two line segments intersect at first point, and the drainage wall (11) is lighted from first has the first length for L along air-out direction, from first point
Playing the drainage wall (11) within the scope of 0-60%L is first interval, with the drainage channel (13) on drainage wall (11)
Import (131), the import (131) are arranged in the first interval.
3. volute tongue according to claim 2, which is characterized in that the first interval includes second interval, is lighted from first
Drainage wall (11) within the scope of 0-40%L is second interval, and the import (131) is arranged in the second interval.
4. volute tongue according to claim 3, which is characterized in that the drainage channel (13) is curved channel.
5. volute tongue according to claim 4, which is characterized in that the drainage channel (13) has at the import (131)
There is the first tangent line, first tangent line and the drainage wall (11) close to impeller (2) side form air-flow deflection angle A, 0 ° of < A
90 ° of <.
6. volute tongue according to claim 5, which is characterized in that 0 ° of 50 ° of < A <.
7. volute tongue according to any one of claim 1 to 6, which is characterized in that the drainage channel (13) is at least three
A, at least three drainage channel (13) is staggered on the drainage wall (11) along impeller (2) axial direction.
8. volute tongue according to any one of claim 1 to 6, which is characterized in that the drainage channel (13) is at least three
A, at least three drainage channel (13) is staggered on the drainage wall (11) along air-out direction.
9. volute tongue according to any one of claim 1 to 6, which is characterized in that the number of the drainage channel (13) is
K, 3≤k, the k drainage channel (13) set gradually along the radial direction of impeller (2).
10. volute tongue according to claim 9, which is characterized in that 3≤k≤5.
11. volute tongue according to claim 10, which is characterized in that the volute tongue ontology (1) includes k+1 tongue body monomer
(14), respectively the first monomer, second comonomer ... ,+1 monomer of kth, first monomer, second comonomer ... ,+1 monomer of kth
It is radially arranged successively in impeller (2), forms a drainage channel (13), k+ between two adjacent tongue body monomers (14)
Form k drainage channels (13) between 1 tongue body monomer (14) altogether, respectively first passage, second channel ...,
Kth channel, the first passage, second channel ..., kth channel radially successively laid along the impeller (2), it is described logical
Road mechanism for opening/closing be k group, channel mechanism for opening/closing described in every group control respectively each drainage channel (13) opening or
Person closes, and the k group channel mechanism for opening/closing respectively corresponds turning on or off for control k drainage channel (13).
12. volute tongue according to claim 11, which is characterized in that the channel mechanism for opening/closing includes drive rod (3), driving
Component, the driving part drive the tongue body monomer (14) in the impeller (2) radially past by the drive rod (3)
Multiple movement, to realize turning on or off for the drainage channel (13).
13. volute tongue according to claim 12, which is characterized in that the drive rod (3) has threaded hole, the driving portion
Part includes motor, and the output end of the motor is threadedly coupled with the threaded hole, and when motor operating, the motor passes through
The circular motion that output end is engaged with the screw thread of the drive rod (3) is converted into the reciprocating motion of the tongue body monomer (14).
14. volute tongue according to claim 11, which is characterized in that the side of the volute tongue ontology (1) has anticreep sliding slot,
Further include guide plate, has on the guide plate and slide raised line, it is described to slide raised line and the anticreep the sliding slot matchingly company of sliding
It connects.
15. volute tongue according to claim 10, which is characterized in that the channel mechanism for opening/closing includes electric control one-way valve, institute
Electric control one-way valve is stated to be set in the drainage channel (13).
16. volute tongue according to claim 15, which is characterized in that the electric control one-way valve is set to the drainage channel
(13) import (131).
17. a kind of cross flow fan, including volute tongue, which is characterized in that the volute tongue is as claimed in any one of claims 1 to 9
Volute tongue.
18. a kind of air conditioner, including cross flow fan, which is characterized in that the cross flow fan is through-flow described in any one of claim 10
Blower.
19. a kind of volute tongue control method, for controlling the volute tongue as described in any one of claim 9 to 16, which is characterized in that
Include the following steps：
A. select tonifying Qi gear i, wherein i=1,2,3 ..., k；
B. the drainage channel (13) that control matches with tonifying Qi gear i turns on or off.
20. volute tongue control method according to claim 19, which is characterized in that when channel, mechanism for opening/closing includes drive rod
(3), when driving part, control driving part operating, so that driving part is by drive rod (3) driving tongue body monomer (14) in leaf
The reciprocating motion of (2) radially is taken turns, to realize turning on or off for drainage channel (13).
21. volute tongue control method according to claim 19, which is characterized in that when channel, mechanism for opening/closing includes automatically controlled unidirectional
When valve, each electric control one-way valve conducting or closing drainage channel (13) are controlled.
22. volute tongue control method according to claim 19, which is characterized in that as k=5, obtain tonifying Qi gear i, i etc.
Any one in 1,2,3,4,5 is fifth speed as i=5, controls five drainage channels (13) and be all turned on；Work as i=4
When be fourth gear, control in five drainage channels (13) any four and open, a remaining drainage channel (13) is closed；Work as i
It is third gear when=3, controls any three unlatchings, remaining two drainage channels (13) in five drainage channels (13) and close；
It is second gear as i=2, controls any two in five drainage channels (13) and open, remaining three drainage channels (13) are closed
It closes；It is first grade as i=1, controls any one in five drainage channels (13) and open, remaining four drainage channels (13)
It closes.
23. volute tongue control method according to claim 19, which is characterized in that as k=4, obtain tonifying Qi gear i, i etc.
Any one in 1,2,3,4 is fourth gear as i=4, controls four drainage channels (13) and be all turned on；As i=3
For third gear, controls any three unlatchings, a remaining drainage channel (13) in four drainage channels (13) and close；Work as i=2
When be second gear, control in four drainage channels (13) any two and open, remaining two drainage channels (13) are closed；Work as i
It is first grade when=1, controls any one in four drainage channels (13) and open, remaining three drainage channels (13) are closed.
24. volute tongue control method according to claim 19, which is characterized in that as k=3, obtain tonifying Qi gear i, i etc.
Any one in 1,2,3 is third gear as i=3, controls three drainage channels (13) and be all turned on；It is as i=2
Second gear controls any two in three drainage channels (13) and opens, and a remaining drainage channel (13) is closed；As i=1
It is first grade, controls any one in three drainage channels (13) and open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810668479.4A CN108916116B (en) | 2018-06-26 | 2018-06-26 | Volute tongue, volute tongue control method, cross-flow fan and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810668479.4A CN108916116B (en) | 2018-06-26 | 2018-06-26 | Volute tongue, volute tongue control method, cross-flow fan and air conditioner |
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| CN108916116A true CN108916116A (en) | 2018-11-30 |
| CN108916116B CN108916116B (en) | 2024-03-29 |
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| CN109882434A (en) * | 2019-04-01 | 2019-06-14 | 珠海格力电器股份有限公司 | Fan structure, fresh air device and air conditioner indoor unit |
| CN114440316A (en) * | 2022-01-30 | 2022-05-06 | 广东美的暖通设备有限公司 | Air duct assembly and air conditioning equipment with same |
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| Publication number | Publication date |
|---|---|
| CN108916116B (en) | 2024-03-29 |
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