CN115853829A - Fan collector and centrifugal fan - Google Patents
Fan collector and centrifugal fan Download PDFInfo
- Publication number
- CN115853829A CN115853829A CN202211681411.2A CN202211681411A CN115853829A CN 115853829 A CN115853829 A CN 115853829A CN 202211681411 A CN202211681411 A CN 202211681411A CN 115853829 A CN115853829 A CN 115853829A
- Authority
- CN
- China
- Prior art keywords
- fan
- flow guide
- sealing
- current collector
- guide part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 59
- 229920000742 Cotton Polymers 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 210000002268 wool Anatomy 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The embodiment of the application provides a fan collector and centrifugal fan belongs to fan technical field, includes: the flow guide part comprises a first side surface and a second side surface, the first side surface is an air inlet surface of the flow guide part, and the second side surface forms an annular accommodating groove; be provided with in the holding tank and inhale the sound cotton, wherein, inhale the sound cotton including sealed face, be provided with the sealing on the sealed face to form at least one concave-convex structure on the sealed face. By the fan current collector and the centrifugal fan, the condition that air flow leaks from a gap of the current collector can be reduced; in addition, the sound-absorbing cotton can absorb the noise radiated from the inside of the fan, and the noise of the centrifugal fan is reduced; the through holes arranged on the flow guide part can destroy a laminar boundary layer at the outer wall surface of the current collector and flow separation caused by the laminar boundary layer, so that gas flows to be tightly attached to the surface of the current collector, the air inlet condition of a centrifugal fan is improved, the air quantity is increased, and high-frequency noise generated at the outlet end of the current collector is inhibited.
Description
Technical Field
The embodiment of the application relates to the technical field of fans, in particular to a fan collector and a centrifugal fan.
Background
The multi-wing centrifugal fan mainly comprises a volute, an impeller and a collector, and is widely applied to the field of household appliances such as air conditioners, range hoods and the like due to the characteristics of small overall size, high pressure coefficient, large flow coefficient and the like. The current collector at the inlet of the multi-wing centrifugal fan can improve the air inlet condition of the fan, improve the utilization rate of the impeller, reduce gas leakage, further improve the pneumatic performance of the fan and reduce noise.
Currently, most wind turbines have a tendency to leak air from the collector gap.
Disclosure of Invention
The embodiment of the application provides a fan collector and a centrifugal fan, and aims to reduce the condition that air flow leaks from a gap of the collector.
A first aspect of an embodiment of the present application provides a fan current collector, including:
the flow guide part comprises a first side surface and a second side surface, the first side surface is an air inlet surface of the flow guide part, and the second side surface forms an annular accommodating groove;
the sound-absorbing cotton is arranged in the accommodating groove, and the size of the sound-absorbing cotton is matched with that of the accommodating groove;
the sound-absorbing cotton comprises a sealing surface, wherein a sealing part is arranged on the sealing surface so that at least one concave-convex structure is formed on the sealing surface;
a plurality of through holes are formed in the flow guide portion, penetrate through the wall face of the flow guide portion, and are evenly distributed on the flow guide portion.
Optionally, the sealing portion includes a plurality of sealing teeth disposed on the sealing surface, the plurality of sealing teeth are disposed along a circumferential direction of the flow guide portion, and the plurality of sealing teeth are disposed at regular intervals along a diameter direction of the flow guide portion.
Optionally, the cross-sectional shape of the seal tooth comprises one of: trapezoidal, square, and arcuate.
Optionally, the dimension of the seal tooth in the first direction is greater than or equal to 5mm and less than or equal to 10mm;
wherein the first direction is a direction perpendicular to the sealing surface.
Optionally, the distance between two adjacent sealing teeth is greater than or equal to 4mm and less than or equal to 8mm.
Optionally, the shape of the through-going hole comprises at least one of: circular, oval, polygonal.
Optionally, the area of the through hole is greater than or equal to 3mm 2 And is less than or equal to 13mm 2 。
Optionally, a plurality of fixing rods are arranged on the flow guide portion, the fixing rods are arranged along the circumferential direction of the flow guide portion, and the fixing rods all span the accommodating groove.
Optionally, the blower current collector further comprises: the fixed ring is fixedly connected with the flow guide part, and the fan collector passes through the fixed ring and is connected with the centrifugal fan.
A second aspect of embodiments of the present application provides a centrifugal fan comprising a fan collector as provided in the first aspect of embodiments of the present application.
Has the advantages that:
the application provides a fan collector and a centrifugal fan, wherein a flow guide part is arranged, the flow guide part comprises a first side surface and a second side surface, an annular accommodating groove is formed in the second side surface, sound-absorbing cotton is arranged in the accommodating groove and comprises a sealing surface, and the sealing surface is provided with a sealing part, so that the sealing surface forms at least one concave-convex structure; therefore, the sealing surface faces the end ring of the fan impeller, and the sealing part is arranged on the sealing surface to block the circulation of air flow, so that the conditions that the air flow forms larger vortex and leaks in the gap between the current collector and the impeller can be reduced; in addition, the sound-absorbing cotton can absorb the noise radiated from the inside of the fan, and the noise of the centrifugal fan is reduced; the through holes arranged on the flow guide part can destroy a laminar boundary layer on the outer wall surface of the current collector and flow separation caused by the laminar boundary layer, so that gas flows to be tightly attached to the surface of the current collector, the air inlet condition of a centrifugal fan is improved, the air volume is increased, and high-frequency noise generated at the outlet end of the current collector is inhibited.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a current collector of a fan according to an embodiment of the present application;
fig. 2 is a schematic cross-sectional view of a fan collector according to an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of an acoustic absorbent cotton including trapezoidal sealing teeth in a collector of a blower according to an embodiment of the present application;
FIG. 4 is a schematic cross-sectional view of an acoustic absorbent wool including square seal teeth in a fan collector according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a second side surface of a collector of a fan according to an embodiment of the present application;
fig. 6 is a schematic structural view of a fan collector including a square through hole according to an embodiment of the present application.
Description of reference numerals: 11. a stationary ring; 12. a flow guide part; 121. a first flow guide part; 122. a second flow guide part; 123. an inlet end; 124. an outlet end; 13. accommodating grooves; 2. sound-absorbing cotton; 21. a sealing surface; 22. a seal tooth; 3. a through hole; 4. and (5) fixing the rod.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
Referring to fig. 1, a fan collector disclosed in an embodiment of the present application includes a flow guide portion 12, where the flow guide portion 12 includes a first side surface and a second side surface.
Specifically, referring to fig. 2, the flow guiding portion 12 is a main body part of a fan collector, the flow guiding portion 12 is an annular cylinder as a whole, a two-dimensional profile of the flow guiding portion 12 includes a straight line section and an arc section, and the flow guiding portion 12 is divided into a first flow guiding portion 121 and a second flow guiding portion 122 along a gas flowing direction, where the first flow guiding portion 121 corresponds to the arc section, and the second flow guiding portion 122 corresponds to the straight line section. The flow guide part 12 is made of a metal material such as carbon steel and stainless steel as a whole. In some embodiments, the flow guide 12 may also be made of plastic. Meanwhile, the flow guide part 12 further includes an inlet end 123 and an outlet end 124, wherein the inlet end 123 is an inlet of the gas flow in the collector, and the outlet end 124 is an outlet of the gas flow in the collector.
Referring to fig. 2, the first side surface and the second side surface of the flow guide portion 12 are two surfaces facing away from the flow guide portion 12. The first side surface is an air inlet surface (also can be understood as a front surface) of the flow guide part 12, and the airflow contacts with the first side surface when passing through the fan collector; the second side surface is a leeward surface (also can be understood as a back surface) of the flow guiding part 12, and an annular accommodating groove 13 is formed on the second side surface, and a main body of the accommodating groove 13 is formed by a circular arc section and a partial straight line section. The height of the arc section of the flow guide part can be made higher (namely the depth of the accommodating groove 13 is made deeper), so that on one hand, the motion track of the airflow can be deflected greatly, and the utilization rate of the blade tip part is improved; on the other hand, thicker sound absorption cotton 2 can be added into the accommodating groove 13, so that the sound absorption effect is enhanced.
Further, referring to fig. 2, the sound-absorbing cotton 2 is disposed in the accommodating groove 13, and the sound-absorbing cotton 2 fills the entire accommodating groove 13, that is, the size of the sound-absorbing cotton 2 is matched with the size of the accommodating groove 13. Wherein the sound-absorbing wool 2 comprises a sealing surface 21, the sealing surface 21 being the surface remote from the second side surface, and the sealing surface 21 being the surface facing the end ring of the fan wheel after mounting the collector on the centrifugal fan.
Referring to fig. 3, the sealing surface 21 is provided with a sealing portion to form at least one concave-convex structure on the sealing surface 21, so that the sealing surface 21 is not a flat surface, and thus, when the air flow passes through the gap between the sealing surface 21 and the impeller, the at least one concave-convex structure prevents the air flow from passing through, thereby reducing the occurrence of leakage due to the large vortex formed by the air flow in the gap between the collector and the impeller.
Further, referring to fig. 3, the sealing portion includes a plurality of sealing teeth 22 disposed on the sealing surface, the plurality of sealing teeth 22 are disposed along the circumferential direction of the flow guide portion 12, and the plurality of sealing teeth 22 are disposed at regular intervals along the diameter direction of the flow guide portion 12.
Specifically, a plurality of seal teeth 22 are arranged along the circumferential direction of the flow guide part 12, that is, the seal teeth 22 are integrally annular in shape, and the annular plurality of seal teeth 22 are formed on the seal surface 21 of the sound-absorbing cotton 2. The sealing teeth 22 are uniformly spaced along the diameter of the flow guide portion 12, that is, the diameter of the sealing teeth 22 is gradually changed, the diameter of the sealing teeth 22 farther from the center of the flow guide portion 12 is larger, and the diameter of the sealing teeth 22 closer to the center of the flow guide portion 12 is smaller. In this way, the plurality of seal teeth 22 and the impeller end ring form a labyrinth seal, which can prevent the air flow inside the volute from forming a vortex at the gap between the collector and the impeller to cause leakage.
Further, as shown with reference to fig. 3 and 4, the cross-sectional shape of the seal tooth 22 may include one of a trapezoid, a square, and an arc.
Further, the dimension of the seal tooth 22 in the first direction, which is the direction perpendicular to the seal face 21, is greater than or equal to 5mm and less than or equal to 10mm, and therefore the dimension of the seal tooth 22 in the first direction can also be understood as the height δ of the seal tooth 22. Illustratively, the dimension of the seal tooth 22 in the first direction may be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc., which may be selected by one skilled in the art as a matter of practical necessity.
Further, the distance Ω between two adjacent seal teeth 22 is greater than or equal to 4mm, and less than or equal to 8mm. Illustratively, the distance Ω between two adjacent seal teeth 22 may be 4mm, 5mm, 6mm, 7mm, 8mm, etc., and can be selected by those skilled in the art according to actual needs.
Further, the distance between the seal teeth 22 and the impeller end ring is greater than or equal to 3mm, and less than or equal to 6mm. For example, the distance between the seal tooth 22 and the impeller end ring may be 3mm, 4mm, 5mm, 6mm, etc., and since the sound-absorbing cotton is a flexible material, the structure of the seal tooth 22 is not damaged even when colliding with an impeller rotating at a high speed, so that the distance between the seal tooth 22 and the impeller end ring may be selected to be small.
Further, the sealing length l of the seal portion (i.e., the dimension of the plurality of seal teeth 22 in the diameter direction of the flow guide portion) is generally larger than the radial dimension of the impeller end ring and smaller than the radial dimension of the wall surface of the flow guide portion 12 of the collector.
In an alternative embodiment, referring to fig. 1, the present embodiment further provides a fan collector, in which a plurality of through holes 3 are formed in a flow guide portion 12, the through holes 3 are disposed through a wall surface of the flow guide portion 12, and the through holes 3 are uniformly distributed on the flow guide portion.
Specifically, the shape of the through-hole 3 includes, but is not limited to, one or more combinations of circles, ellipses, and polygons. Referring to fig. 1, in the present embodiment, the through-hole 3 has a circular shape; as shown in fig. 6, in another embodiment, the shape of the through-hole 3 may be square.
When the through hole 3 is circular, the diameter of the through hole 3 is greater than or equal to 2mm and less than or equal to 4mm; the height of the through hole 3 is the same as the wall thickness of the flow guide part 12 and is 1mm; the area of the other types of through holes is more than or equal to 3mm 2 And is less than or equal to 13mm 2 。
In the embodiment of the present application, the through holes 3 annularly distributed on the flow guide part 12 are referred to as a through hole group, the through holes 3 of each group are uniformly distributed on the wall surface of the flow guide part 12, the number of the through holes 3 of each group is 60 to 120, there are 6 to 10 through hole groups in total in the gas flowing direction, and the relative positions of the through holes 3 in different through hole groups are not limited.
The through holes 3 are arranged on the flow guide part 12, so that the wall surface of the flow guide part 12 can form a non-smooth surface, and on one hand, a laminar boundary layer at the outer wall surface of the current collector and flow separation caused by the laminar boundary layer can be damaged, so that gas flows to be tightly attached to the surface of the current collector, the air inlet condition of the multi-wing centrifugal fan is improved, the air volume is increased, and high-frequency noise generated at the outlet end of the current collector is inhibited; on the other hand, noise generated by the pulsation of the air flow near the wall surface of the collector is absorbed by the sound-absorbing cotton 2 located behind the through-holes 3, thereby reducing the noise.
Further, referring to fig. 1, the fan collector further includes a fixing ring 11, the fixing ring 11 is fixedly connected with the flow guiding portion 12, and the fan collector is connected with the centrifugal fan through the fixing ring 11.
Further, referring to fig. 5, a plurality of fixing rods 4 are disposed on the flow guiding portion 12, the plurality of fixing rods 4 are disposed along the circumferential direction of the flow guiding portion 12, and the plurality of fixing rods 4 all span the accommodating groove 13.
Specifically, the fixing rod 4 is generally rectangular or cylindrical in shape and is small in size. When the fixing rod 4 is in a cuboid shape, the length of the side surface of the fixing rod 4 is more than or equal to 3mm and less than or equal to 6mm, and the width is more than or equal to 2mm and less than or equal to 4mm; when the shape of the fixing rod 4 is a cylinder, the diameter of the end face of the fixing rod 4 is greater than or equal to 2mm and less than or equal to 4mm. One end of the fixed rod 4 is fixed on the flow guide part 12, the other end is fixed on the fixed ring 11, and the number is 4-8.
The setting of dead lever 4 can be fixed the position of inhaling the sound cotton 2 to avoid inhaling the sound cotton 2 and drop from holding the inslot 13, guaranteed to inhale the noise reduction effect of sound cotton 2.
In the following, two specific examples and a comparative example will be provided to illustrate the technical effect of the current collector of the present application.
Comparative example (metal wall only):
comparative example collector inlet and outlet end face area 0.057m 2 、0.046m 2 . The thickness of the metal wall of the current collector is 1mm. The two-dimensional profile of the retainer ring 11 is a straight line segment with a length of 15mm. The two-dimensional outline of the first flow guide part 121 is a tangential arc and a tangential straight line segment, the radius of the arc is 13mm, and the length of the straight line segment is 22mm. The two-dimensional profile of the second flow guide portion 122 is a straight line segment, which is tangent to the circular arc segment of the first flow guide portion, and the length is 19mm.
Example one (metal wall + sound absorbing cotton):
the collector of this embodiment has an inlet/outlet end area of 0.057m 2 、0.046m 2 . The thickness of the metal wall of the current collector is 1mm. The two-dimensional profile of the retainer ring 11 is a straight line segment with a length of 15mm. The two-dimensional profile of the first diversion part 121 is an arc and a straight line segment which are tangent, the radius of the arc is 13mm, and the length of the straight line segment is 22mm. The two-dimensional profile of the second flow guide portion 122 is a straight line segment, which is tangent to the circular arc segment of the first flow guide portion, and the length is 19mm.
Inhale the annular holding tank that sound cotton 2 was located the second side formation. The number of the sealing teeth is 5, the cross section of the sealing teeth is square, and the size of the sealing teeth in the direction perpendicular to the sealing surface is 6mm. The distance between two adjacent seal teeth is 6mm, and the length of the seal portion is 35mm.
Example two (metal wall face + sound absorbing wool + through holes):
the collector of this embodiment has an inlet/outlet end area of 0.057m 2 、0.046m 2 . The thickness of the metal wall of the current collector is 1mm. The two-dimensional profile of the retainer ring 11 is a straight line segment with a length of 15mm. The two-dimensional outline of the first flow guide part 121 is a tangential arc and a tangential straight line segment, the radius of the arc is 13mm, and the length of the straight line segment is 22mm. The two-dimensional profile of the second flow guide portion 122 is a straight line segment, which is tangent to the circular arc segment of the first flow guide portion, and the length is 19mm.
Inhale the annular holding tank that sound cotton 2 was located the second side formation. The number of the sealing teeth is 5, the cross section of the sealing teeth is square, and the size of the sealing teeth in the direction perpendicular to the sealing surface is 6mm. The distance between two adjacent seal teeth is 6mm, and the length of the seal portion is 35mm.
The through holes 3 are distributed on the wall surface of the guide part 12, and the height of the through holes is equal to the thickness of the metal wall surface and is 1mm. The flow guide part 12 of the collector has 7 annular through hole groups, the front 6 groups of through holes are square, the length of each side is 3mm, the 7 groups of through holes are positioned at the tail end of the second flow guide part 122 of the collector, and the area of the 7 groups of through holes is only 1/2 of that of the square through holes. The through holes in each group are distributed at equal intervals, and the number of the through holes is 70. Two adjacent through hole groups are distributed on the wall surface of the flow guide part 12 in a staggered way.
The flow and noise of the multi-wing centrifugal fan provided with the collector with the structure are tested correspondingly.
Test example: the flow rate and noise under laboratory conditions were tested using the collectors provided in examples one and two applied to a multi-bladed centrifugal fan as experimental examples and a multi-bladed centrifugal fan with the original collector as comparative example.
It should be noted that, in all the test examples, the structures and the sizes of the multi-blade centrifugal fan except the current collector are the same, the test environment is kept consistent, and the deviation of the performance test result caused by the difference of the external conditions is avoided.
The experimental test results are as follows:
TABLE 1 Performance test results of the test examples
| Rotational speed (rpm) | Flow rate (m) 3 /min) | Noise (dB) | |
| Comparative example | 680 | 19.1 | 54.8 |
| Example 1 | 680 | 19.9 | 53.5 |
| Example 2 | 680 | 20.2 | 53.1 |
As can be seen from table 1, the centrifugal fans with multiple blades in the first and second embodiments have the maximum air volume respectively increased by 4.19% and 5.76% and the noise respectively decreased by 1.3dB and 1.7dB, compared with the fan with the original collector. The results prove that the current collector provided by the invention is applied to the multi-wing centrifugal fan, the gas flow state at the inlet of the fan can be effectively improved, the gas leakage at the axial gap between the current collector and the impeller is reduced, the work-doing capability of the impeller is enhanced, the pneumatic performance of the multi-wing centrifugal fan is further improved, and the noise is reduced.
However, it should be noted that only on the basis of disposing the sound absorbing cotton in the groove on the back of the current collector, the dense through holes may be disposed on the flow guiding portion of the current collector, otherwise the air flow inside the volute may leak to the outside of the fan through the through holes, which deteriorates the performance of the fan.
Based on the same inventive concept, the embodiment of the application discloses a centrifugal fan, which comprises any fan collector as described in the embodiment of the application.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It should also be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Moreover, relational terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions or should not be construed as indicating or implying relative importance. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising one of 8230 \8230;" does not exclude the presence of additional like elements in a process, method, article, or terminal device that comprises the element.
The technical solutions provided by the present application are described in detail above, and the principles and embodiments of the present application are described herein by using specific examples, which are only used to help understanding the present application, and the content of the present description should not be construed as limiting the present application. While various modifications of the illustrative embodiments and applications will be apparent to those skilled in the art based upon this disclosure, it is not necessary or necessary to exhaustively enumerate all embodiments, and all obvious variations and modifications can be resorted to, falling within the scope of the disclosure.
Claims (10)
1. A fan collector, comprising:
the flow guide part comprises a first side surface and a second side surface, the first side surface is an air inlet surface of the flow guide part, and the second side surface forms an annular accommodating groove;
the sound-absorbing cotton is arranged in the accommodating groove, and the size of the sound-absorbing cotton is matched with that of the accommodating groove;
the sound-absorbing cotton comprises a sealing surface, wherein a sealing part is arranged on the sealing surface so that at least one concave-convex structure is formed on the sealing surface;
a plurality of through holes are formed in the flow guide portion, penetrate through the wall surface of the flow guide portion, and are uniformly distributed on the flow guide portion.
2. The blower current collector of claim 1, wherein:
the sealing part comprises a plurality of sealing teeth arranged on the sealing surface, the sealing teeth are arranged along the circumferential direction of the flow guide part, and the sealing teeth are arranged along the diameter direction of the flow guide part at uniform intervals.
3. The blower current collector according to claim 2, wherein:
the cross-sectional shape of the seal tooth includes one of: trapezoidal, square, and arcuate.
4. The blower current collector according to claim 2, wherein:
the size of the sealing tooth in the first direction is greater than or equal to 5mm and less than or equal to 10mm;
wherein the first direction is a direction perpendicular to the sealing surface.
5. The blower current collector according to claim 2, wherein:
the distance between two adjacent sealing teeth is greater than or equal to 4mm and less than or equal to 8mm.
6. The blower current collector of claim 1, wherein:
the shape of the through-hole comprises at least one of the following: circular, oval, polygonal.
7. The blower current collector of claim 1, wherein:
the area of the through hole is more than or equal to 3mm 2 And is less than or equal to 13mm 2 。
8. The fan collector according to any one of claims 1 to 7, wherein:
be provided with a plurality of dead levers on the water conservancy diversion portion, it is a plurality of the dead lever along the circumference setting of water conservancy diversion portion, it is a plurality of the dead lever all span in the holding tank setting.
9. The fan collector according to any one of claims 1 to 7, further comprising:
the fixed ring is fixedly connected with the flow guide part, and the fan collector is connected with the centrifugal fan through the fixed ring.
10. A centrifugal fan comprising a fan collector according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211681411.2A CN115853829B (en) | 2022-12-27 | 2022-12-27 | Fan current collector and centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211681411.2A CN115853829B (en) | 2022-12-27 | 2022-12-27 | Fan current collector and centrifugal fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115853829A true CN115853829A (en) | 2023-03-28 |
| CN115853829B CN115853829B (en) | 2024-07-09 |
Family
ID=85655026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211681411.2A Active CN115853829B (en) | 2022-12-27 | 2022-12-27 | Fan current collector and centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115853829B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101965461A (en) * | 2008-04-22 | 2011-02-02 | 广东松下环境系统有限公司 | Centrifugal fan and noise reduction method in centrifugal fan |
| CN103270315A (en) * | 2010-12-21 | 2013-08-28 | 依必安-派特穆尔芬根股份有限两合公司 | Fan diffuser having a circular inlet and a rotationally asymmetrical outlet |
| CN205401255U (en) * | 2016-02-29 | 2016-07-27 | 宁波方太厨具有限公司 | A collector of making an uproar falls for centrifugal fan among range hood |
| CN106438491A (en) * | 2016-07-18 | 2017-02-22 | 珠海格力电器股份有限公司 | Flow guide ring, centrifugal fan and air conditioner |
| CN106871421A (en) * | 2015-12-10 | 2017-06-20 | 珠海格力电器股份有限公司 | Guide ring assembly, axial flow fan and air conditioner |
| CN206771572U (en) * | 2017-04-28 | 2017-12-19 | 广东美的制冷设备有限公司 | Water conservancy diversion shade assembly and air-conditioner outdoor unit for air-conditioner outdoor unit |
| CN107654398A (en) * | 2017-10-23 | 2018-02-02 | 上海瑞晨环保科技有限公司 | A kind of noise elimination high-speed centrifugal fan |
| CN108278221A (en) * | 2018-04-26 | 2018-07-13 | 重庆通用工业(集团)有限责任公司 | Inlet seal structure and wind turbine |
| WO2022032875A1 (en) * | 2020-08-10 | 2022-02-17 | 佛山市顺德区美的洗涤电器制造有限公司 | Air guide ring, centrifugal fan, and range hood |
| US11371532B1 (en) * | 2021-05-21 | 2022-06-28 | Xi'an Jiaotong University | Inlet collector for centrifugal fan and centrifugal fan |
| CN218093632U (en) * | 2022-06-17 | 2022-12-20 | 宁波方太厨具有限公司 | Centrifugal fan and range hood |
-
2022
- 2022-12-27 CN CN202211681411.2A patent/CN115853829B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101965461A (en) * | 2008-04-22 | 2011-02-02 | 广东松下环境系统有限公司 | Centrifugal fan and noise reduction method in centrifugal fan |
| CN103270315A (en) * | 2010-12-21 | 2013-08-28 | 依必安-派特穆尔芬根股份有限两合公司 | Fan diffuser having a circular inlet and a rotationally asymmetrical outlet |
| US20140086728A1 (en) * | 2010-12-21 | 2014-03-27 | Emb-Papst Mulfingen Gmbh & Co. Kg | Fan Diffuser Having a Circular Inlet and a Rotationally Asymmetrical Outlet |
| CN106871421A (en) * | 2015-12-10 | 2017-06-20 | 珠海格力电器股份有限公司 | Guide ring assembly, axial flow fan and air conditioner |
| CN205401255U (en) * | 2016-02-29 | 2016-07-27 | 宁波方太厨具有限公司 | A collector of making an uproar falls for centrifugal fan among range hood |
| CN106438491A (en) * | 2016-07-18 | 2017-02-22 | 珠海格力电器股份有限公司 | Flow guide ring, centrifugal fan and air conditioner |
| CN206771572U (en) * | 2017-04-28 | 2017-12-19 | 广东美的制冷设备有限公司 | Water conservancy diversion shade assembly and air-conditioner outdoor unit for air-conditioner outdoor unit |
| CN107654398A (en) * | 2017-10-23 | 2018-02-02 | 上海瑞晨环保科技有限公司 | A kind of noise elimination high-speed centrifugal fan |
| CN108278221A (en) * | 2018-04-26 | 2018-07-13 | 重庆通用工业(集团)有限责任公司 | Inlet seal structure and wind turbine |
| WO2022032875A1 (en) * | 2020-08-10 | 2022-02-17 | 佛山市顺德区美的洗涤电器制造有限公司 | Air guide ring, centrifugal fan, and range hood |
| US11371532B1 (en) * | 2021-05-21 | 2022-06-28 | Xi'an Jiaotong University | Inlet collector for centrifugal fan and centrifugal fan |
| CN218093632U (en) * | 2022-06-17 | 2022-12-20 | 宁波方太厨具有限公司 | Centrifugal fan and range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115853829B (en) | 2024-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108412809B (en) | Flow guide ring, centrifugal fan and air conditioner | |
| CN109611356B (en) | Backward centrifugal fan | |
| JPWO2017026150A1 (en) | Blower and air conditioner equipped with this blower | |
| CN211422997U (en) | Sealing structure for reducing gap leakage of inlet collector of centrifugal fan | |
| CN107965471B (en) | Current collector and centrifugal fan applying same | |
| CN109578328B (en) | Centrifugal wind wheel and low-noise backward centrifugal fan comprising same | |
| CN108953222B (en) | Centrifugal impeller | |
| CN109595197B (en) | Fan | |
| CN115853829A (en) | Fan collector and centrifugal fan | |
| CN111350698B (en) | Flow guide ring device and axial flow fan | |
| CN109595198B (en) | Fan impeller | |
| CN215805384U (en) | Air outlet grille and air outlet device | |
| CN113883099B (en) | High-efficient wind-guiding structure and fan | |
| CN205371106U (en) | Axial -flow fan anti -surge annular device | |
| CN209818372U (en) | Negative pressure formula axial fan of high-efficient silence | |
| CN214661053U (en) | Flow guide type axial flow wind wheel and axial flow fan with same | |
| CN210265293U (en) | Low-noise axial-flow type ventilator | |
| CN221482245U (en) | Oil-free ultrahigh-speed centrifugal compressor reflux unit | |
| CN221257256U (en) | Exhaust silencer for suspension type centrifugal blower | |
| CN210769382U (en) | High-efficient mixed flow fan | |
| CN220505412U (en) | Fan and cleaning device applying same | |
| EP3193022B1 (en) | Centrifugal ventilating fan | |
| CN219840829U (en) | Volute diversion structure of centrifugal ventilator | |
| CN221071986U (en) | Drying tunnel assembly and clothes treatment equipment | |
| CN213953996U (en) | Novel double-layer current collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |