CN208252438U - Volute tongue, cross flow fan, air conditioner - Google Patents
Volute tongue, cross flow fan, air conditioner Download PDFInfo
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- CN208252438U CN208252438U CN201820832748.1U CN201820832748U CN208252438U CN 208252438 U CN208252438 U CN 208252438U CN 201820832748 U CN201820832748 U CN 201820832748U CN 208252438 U CN208252438 U CN 208252438U
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- tongue
- drainage
- volute tongue
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- drainage channel
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- 230000008676 import Effects 0.000 claims description 15
- 230000006978 adaptation Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 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 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model provides a kind of volute tongue, cross flow fan, air conditioner.The volute tongue includes volute tongue ontology, the volute tongue ontology has drainage wall, tongue inner flow surface, drainage channel, the drainage channel is extended from the drainage wall to the tongue inner flow surface, to guide the airflow portion at the drainage wall into the tongue inner flow surface, the drainage channel at least two, at least two drainage channel are set gradually along the radial direction of impeller.A kind of volute tongue according to the present utility model, cross flow fan, air conditioner, the type different especially suitable for revolving speed have wider wind speed adaptation range, the noise of cross flow fan are effectively reduced.
Description
Technical field
The utility model belongs to air-conditioning technique field, and in particular to a kind of volute tongue, cross flow fan, air conditioner.
Background technique
All the time, volute tongue noise is a major issue for influencing cross flow fan noise, for this using single tonifying Qi
Tongue air-flow is adjusted in channel, but for different types, rotation speed change wider range, if logical only with single tonifying Qi
Road can not then show consideration for all ranges of speeds, and specifically showing consideration for high revolving speed, then slow-speed of revolution fan capacity will receive certain influence, show consideration for
Then high revolving speed noise can not effectively inhibit middle and slow speed of revolution, it is therefore desirable to more air supply passages that wider range air-flow is adjusted can be achieved
Gas supplementary structure.
Utility model content
Therefore, the technical problem to be solved by the present invention is to provide a kind of volute tongue, cross flow fan, air conditioners, especially
The type different suitable for revolving speed has wider wind speed adaptation range, the noise of cross flow fan is effectively reduced.
To solve the above-mentioned problems, the utility model provides a kind of volute tongue, including volute tongue ontology, and the volute tongue ontology has
Wall, tongue inner flow surface, drainage channel are drained, the drainage channel is extended from the drainage wall to the tongue inner flow surface, will
Airflow portion at the drainage wall guides the tongue inner flow surface into, the drainage channel at least two, and described at least two
Drainage channel is set gradually along the radial direction of impeller.
Preferably, the drainage channel is radially no more than a along impeller.
It preferably, is the first plane perpendicular to the plane of the axis of impeller 2, the drainage wall 11, tongue inner flow surface 12 are logical
The connection of airflow diversion face 17 is crossed, the airflow diversion face 17 projection on the first plane forms the first circular arc, by described the
The center of one circular arc has the first line segment, and for first line segment perpendicular to the drainage wall 11, the drainage wall 11 is flat first
The projection in face forms second line segment, and first line segment and second line segment intersect at first point, the drainage wall 11 from first point
It is L that rising, which has the first length along air-out direction, and it is first interval that the drainage wall 11 within the scope of 0-60%L is lighted from first, described
The import 131 on wall 11 with the drainage channel 13 is drained, the import 131 is arranged in the first interval.
Preferably, the first interval includes second interval, and lighting drainage wall 11 within the scope of 0-40%L from first is the
Two sections, the import 131 are arranged in the second interval.
Preferably, the drainage channel is curved channel.
Preferably, the drainage channel 13 has the first tangent line, first tangent line and close leaf at the import 131
The drainage wall for taking turns side forms air-flow deflection angle A, 0 ° of 90 ° of < A <.
Preferably, 0 ° of 50 ° of < A <.
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.
Preferably, the drainage channel 13 is at least three, and at least three drainage channel 13 is along air-out direction in institute
It states staggered on drainage wall 11.
Preferably, the volute tongue ontology includes at least the first tongue body, the second tongue body, third tongue body, first tongue body, the
Two tongue bodies, third tongue body are radially arranged successively in impeller, and the drainage channel includes at least first passage, second channel, institute
It states and forms first passage between the first tongue body, the second tongue body, form second channel between second tongue body, third tongue body.
Preferably, first tongue body, can be relative to second tongue body along impeller radial motion, to beat on or off
The first passage is closed, and/or, second tongue body can be relative to the third tongue body along impeller radial motion, to open
Or close the second channel.
The utility model also provides a kind of cross flow fan, including above-mentioned volute tongue.
The utility model also provides a kind of air conditioner, including above-mentioned cross flow fan.
A kind of volute tongue provided by the utility model, cross flow fan, air conditioner, the drainage channel at least two, and extremely
Few two drainage channels are set gradually along the radial direction of the impeller, to enable the air-flow of the impeller output extremely
The entrance of few two drainage channels is guided at tongue inner flow surface by drainage wall, and finally impeller and tongue inner flow surface it
Between the small spacing of tongue at the circumferential revolving speed of impeller is reduced, make an uproar to reduce cross flow fan or even application its air conditioner
Sound, it is even more important that the different location due to the drainage channel in drainage wall introduces air-flow at the small spacing of volute tongue, makes institute
Drainage channel is stated in the wider array of situation of wind speed (this is positively correlated with wheel speed) range, is more advantageous to the week for adjusting the impeller
To revolving speed.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the volute tongue of the utility model embodiment；
Fig. 2 is the partial structural diagram of volute tongue drainage wall in the direction B along Fig. 1 of the utility model embodiment；
Fig. 3 is the partial structural diagram of volute tongue drainage wall in the direction B along Fig. 1 of another embodiment of the utility model；
Fig. 4 is the partial structural diagram of volute tongue drainage wall in the direction B along Fig. 1 of the utility model another embodiment；
Fig. 5 is the partial structural diagram of volute tongue drainage wall in the direction B along Fig. 1 of another embodiment of the utility model；
Fig. 6 is that the outlet air of the volute tongue of the utility model embodiment is related to drainage wall length in the wind speed of drainage wall surface
Change curve；
Fig. 7, which is that the drainage channel air outlet speed of the volute tongue of the utility model embodiment is related to drainage channel length, to be become
Change curve.
Appended drawing reference indicates are as follows:
1, volute tongue ontology；11, wall is drained；12, tongue inner flow surface；13, drainage channel；131, import；133, first passage；
134, second channel；14, the first tongue body；15, the second tongue body；16, third tongue body；17, airflow diversion face；2, impeller；3, volute tongue
Small spacing.
Specific embodiment
In conjunction with referring to shown in Fig. 1 to 7, embodiment according to the present utility model provides a kind of volute tongue, including volute tongue ontology 1,
The volute tongue ontology 1 has drainage wall 11, tongue inner flow surface 12, drainage channel 13, and the drainage channel 13 is by the drainage wall
11 extend to the tongue inner flow surface 12, guide the airflow portion at the drainage wall 11 into the tongue inner flow surface 12, institute
Drainage channel 13 at least two is stated, at least two drainage channel 13 is set gradually along the radial direction of impeller 2.The technical solution
In, the drainage channel 13 at least two, and at least two drainage channels 13 are successively set along the radial direction of the impeller 2
It sets, so that the air-flow for enabling the impeller 2 to export is at the import 131 of at least two drainage channels 13 by by drainage wall 11
It guides at tongue inner flow surface 12, and by the week of impeller 2 at the small spacing 3 of the tongue finally between impeller 2 and tongue inner flow surface 12
It is reduced to revolving speed, to reduce the noise of cross flow fan or even the air conditioner using it, it is even more important that drawn due to described
Circulation road 13 introduces air-flow at the small spacing 3 of volute tongue in the different location of drainage wall 11, makes the drainage channel 13 in wind speed (this
It is positively correlated with 2 revolving speed of impeller) in the wider array of situation of range, it is more advantageous to the circumferential revolving speed for adjusting the impeller 2.
Certainly, in order to further decrease noise, the drainage channel 13 can be more along being arranged radially for impeller 2
Number, such as 4 to 6, but due to when the setting number of the drainage channel 13 is excessive, being then easy to cause two neighboring described
Volute tongue ontology 1 between drainage channel 13 is excessively thin, will also decrease the rigidity and intensity of volute tongue ontology 1, it is therefore preferred that described
Drainage channel 13 is radial no more than 5 along impeller 2.
(surface wind speed unit is m/s in Fig. 6, and drainage wall is mm along journey length unit) can be apparent from by Fig. 6, with
The length for draining wall 11 increases, and surface wind speed of the outlet air air-flow of impeller 2 on the drainage wall 11 gradually reduces, and therefore, is
Increase airflow reflux to the influence degree of the circumferential revolving speed of the impeller 2, the opening 131 of the drainage channel 13 should be arranged
In the drainage wall 11 in the region of 2 side of impeller, specifically, 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 on the first plane
Projection forms the first circular arc, has the first line segment by the center of first circular arc, first line segment draws perpendicular to described
Wall 11 is flowed, the drainage wall 11 forms second line segment in the projection of the first plane, and first line segment is intersected at second line segment
First point, the drainage wall 11 is lighted from first has the first length for L along air-out direction, lights 0-60%L range from first
Interior drainage wall 11 is first interval, the import 131 with the drainage channel 13 on the drainage wall 11, the import 131
It is arranged in the first interval.Further, the first interval includes second interval, lights 0-40%L model from first
Drainage wall 11 in enclosing is second interval, and the import 131 is arranged in the second interval.
(going out stream wind speed unit in Fig. 7 is m/s, and drainage channel length unit is mm) can be apparent from by Fig. 7, with drainage
The increase of the length in channel 13, air-flow go out to flow wind speed and will gradually reduce, and basic reason is, as the drainage channel 13 is long
The increase of degree will increase the on-way resistance of air-flow, therefore the stream wind speed that goes out of air-flow associatedly gradually reduces, in order to
The on-way resistance of the drainage channel 13 is reduced as far as possible, it is preferable that the drainage channel 13 is curved channel, certainly herein
Curved channel can be multistage different curvature radius camber line round and smooth junction curve, and the smooth curve should be toward leaf
The curving of wheel 2, further, using single-curvature radius camber line then more preferably, at this point, the drainage channel 13 along journey
Resistance will further decrease, this can undoubtedly further increase the air-flow in drainage channel 13 to the gas at the small spacing of volute tongue 3
Stream influences, and then further decreases 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 °, moreover 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.
Arrangement mode of at least two drainage channels 13 on the drainage wall 11 can be it is a variety of, it is such as described to draw
Circulation road 13 is at least three, and at least three drainage channel 13 interlocks on the drainage wall 11 along 2 axial direction of impeller
Arrangement, and or, the drainage channel 13 is at least three, at least three drainage channel 13 is along air-out direction in the drainage
It is staggered on wall 11, further, the distance between two drainage channels 13 adjacent to each other can be it is equal, can also
To be, this be conducive to during the manufacturing according to different fan performances to the spacing of the drainage channel 13 into
The necessary adjustment of row, has stronger specific aim, is more conducive to reducing the noise of cross flow fan.
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 another way can be, the volute tongue ontology 1 includes at least the
One tongue body 14, the second tongue body 15, third tongue body 16, first tongue body 14, the second tongue body 15, third tongue body 16 are in 2 diameter of impeller
It is arranged successively upwards, the drainage channel 13 includes at least first passage 133, second channel 134, first tongue body 14, the
First passage 133 is formed between two tongue bodies 15, and second channel 134 is formed between second tongue body 15, third tongue body 16.
It is opened in order to adjust the closing of the drainage channel 13 in real time in cross flow fan operating, preferably
Ground, first tongue body 14, can be described to turn on or off relative to second tongue body 15 along 2 radial motion of impeller
First passage 133, and/or, second tongue body 15 can be relative to the third tongue body 16 along 2 radial motion of impeller, to beat
On or off closes the second channel 134, and specifically, first tongue body 14, the second tongue body 15, third tongue body 16 can all be set
It sets on a common pedestal, and using cunning between first tongue body 14, the second tongue body 15, third tongue body 16 and pedestal
Dynamic connection, by driving device as described in motor control the first tongue body 14, the second tongue body 15, generate phase between third tongue body 16
To movement, for another example first tongue body 14, the second tongue body 15, third tongue body 16 are each other flush-mounted in one, such as the first tongue body 14
In the second tongue body 15, second tongue body 15 is in the third tongue body 16, first tongue body 14, the second tongue
Body 15, third tongue body 16 still by driving device drive, make first tongue body 14, the second tongue body 15, third tongue body 16 it
Between generate relative motion, so it is easy to understand that first tongue body 14 of relative motion, the second tongue body 15, third tongue body 16 will
The first passage 133 between them, second channel 134 is caused to turn on or off as needed.
Embodiment according to the present utility model also provides a kind of cross flow fan, upper due to using including above-mentioned volute tongue
The volute tongue stated, noise is effectively reduced in the running.
Embodiment according to the present utility model also provides a kind of air conditioner, including above-mentioned cross flow fan, due to using
Above-mentioned cross flow fan, noise is effectively reduced in the running.
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 only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.Above are merely preferred embodiments of the utility model, it is noted that for the ordinary skill of the art
For personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these improvement
It also should be regarded as the protection scope of the utility model with modification.
Claims (13)
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, guides the airflow portion at drainage wall (11) into the tongue inner flow surface (12), the drainage channel (13) is extremely
It is less two, at least two drainage channel (13) sets gradually along the radial direction of impeller (2).
2. volute tongue according to claim 1, which is characterized in that the drainage channel (13) is radially no more than 5 along impeller (2)
It is a.
3. 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.
4. volute tongue according to claim 3, 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.
5. volute tongue according to claim 3, which is characterized in that the drainage channel (13) is curved channel.
6. 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 <.
7. volute tongue according to claim 6, which is characterized in that 0 ° of 50 ° of < A <.
8. volute tongue according to any one of claim 1 to 7, 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.
9. volute tongue according to any one of claim 1 to 7, 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.
10. volute tongue according to any one of claim 1 to 7, which is characterized in that the volute tongue ontology (1) includes at least
First tongue body (14), the second tongue body (15), third tongue body (16), first tongue body (14), the second tongue body (15), third tongue body
(16) it is radially arranged successively in impeller (2), the drainage channel (13) includes at least first passage (133), second channel
(134), first passage (133) are formed between first tongue body (14), the second tongue body (15), second tongue body (15), the
Second channel (134) are formed between three tongue bodies (16).
11. volute tongue according to claim 10, which is characterized in that first tongue body (14), can be relative to described
Two tongue bodies (15) are along impeller (2) radial motion, to turn on or off the first passage (133), and/or, second tongue
Body (15) can be relative to the third tongue body (16) along impeller (2) radial motion, to turn on or off the second channel
(134)。
12. a kind of cross flow fan, including volute tongue, which is characterized in that the volute tongue is described in any one of claims 1 to 11
Volute tongue.
13. a kind of air conditioner, including cross flow fan, which is characterized in that the cross flow fan is through-flow described in claim 12
Blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820832748.1U CN208252438U (en) | 2018-05-31 | 2018-05-31 | Volute tongue, cross flow fan, air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820832748.1U CN208252438U (en) | 2018-05-31 | 2018-05-31 | Volute tongue, cross flow fan, air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208252438U true CN208252438U (en) | 2018-12-18 |
Family
ID=64651956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820832748.1U Withdrawn - After Issue CN208252438U (en) | 2018-05-31 | 2018-05-31 | Volute tongue, cross flow fan, air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208252438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457906A (en) * | 2018-05-31 | 2018-08-28 | 珠海格力电器股份有限公司 | Volute tongue, cross flow fan, air conditioner |
-
2018
- 2018-05-31 CN CN201820832748.1U patent/CN208252438U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457906A (en) * | 2018-05-31 | 2018-08-28 | 珠海格力电器股份有限公司 | Volute tongue, cross flow fan, air conditioner |
| CN108457906B (en) * | 2018-05-31 | 2023-11-24 | 珠海格力电器股份有限公司 | Volute tongue, cross-flow fan and air conditioner |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181218 Effective date of abandoning: 20231124 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20181218 Effective date of abandoning: 20231124 |