CN114198321B - Centrifugal fan with self-adaptive runner - Google Patents
Centrifugal fan with self-adaptive runner Download PDFInfo
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- CN114198321B CN114198321B CN202111464788.8A CN202111464788A CN114198321B CN 114198321 B CN114198321 B CN 114198321B CN 202111464788 A CN202111464788 A CN 202111464788A CN 114198321 B CN114198321 B CN 114198321B
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- fan
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- swinging
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- 238000007667 floating Methods 0.000 claims abstract description 24
- 230000003044 adaptive effect Effects 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/422—Discharge tongues
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—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
- F04D29/444—Bladed diffusers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application relates to the field of centrifugal fans, and discloses a centrifugal fan with a self-adaptive flow channel, which comprises a fan frame and fan blades, wherein the fan blades are accommodated in the fan frame, the flow channel is arranged in the fan frame around the fan blades, and the flow channel comprises an air inlet and an air outlet; the flow channel comprises a floating flow channel, the air inlet is provided with a tongue end, the tongue end is movably connected with the fan frame through an elastic piece, and fan blades at the tongue end are arranged at intervals to form the floating flow channel; under the rotation of the fan blades, external air flows in from the air inlet through the flow channel and finally flows out from the air outlet, the tongue ends vibrate in a reciprocating manner, and the interval between the tongue ends and the fan blades is changed. The centrifugal fan can realize self-adaptive adjustment of the flow channel through the reciprocating vibration of the tongue end, thereby meeting the heat dissipation performance and simultaneously ensuring low noise.
Description
Technical Field
The application relates to the field of centrifugal fans, in particular to a centrifugal fan with a self-adaptive runner.
Background
Along with the development of technology, the demands of notebook computers are becoming more stringent. The notebook computer is required to be light and thin and high-performance, so that the size of the heat dissipation component is correspondingly reduced, and how to design a centrifugal fan with high flow and low noise in a limited system space becomes an important subject of multi-party research.
The flow channel of the centrifugal fan can influence the flow and noise of the fan, the position with the greatest influence is at the tongue end, the air flow enters the compression area of the centrifugal fan, the fan blades can generate clapping noise due to overlarge impedance in the area, in order to solve the problem of clapping noise in reality, the angle of the tongue end is adjusted to be large, the distance between the fan blades and the tongue end is increased, and the effect of reducing clapping noise is achieved.
In order to meet the performance requirements of users under different conditions, the sound pressure value of the rotating speed of the fan is regulated to be between 17 db and 45 db, and the quality of each noise level is required to meet the standards of the users, and the blade shape and the air inlet and outlet are matched and adjusted at a fixed tongue end angle to meet the sound quality requirements of each level. However, the design of the fixed tongue end cannot meet the noise quality and performance optimization of each stage of the fan, so that the comprehensive performance competitiveness is poor, the noise quality and performance are mutually limited, the best experience cannot be provided for a user, only one of the noise quality and the performance can be moved, and the use experience of the user is poor.
Disclosure of Invention
The application mainly solves the technical problems that the tongue end is of a fixed structure and cannot simultaneously consider the heat radiation performance and the noise quality in the prior art, and provides the centrifugal fan which realizes the self-adaptive adjustment of the flow channel through the reciprocating vibration of the tongue end, thereby meeting the heat radiation performance and simultaneously ensuring low noise.
In order to solve the technical problems and achieve the purposes of the application, the application provides a centrifugal fan with a self-adaptive runner, which is characterized by comprising a fan frame and fan blades, wherein the fan blades are accommodated in the fan frame, the runner is arranged in the fan frame around the fan blades, and the runner comprises an air inlet and an air outlet; the flow channel comprises a floating flow channel, the air inlet is provided with a tongue end, the tongue end is movably connected with the fan frame through an elastic piece, and the tongue end and the fan blade are arranged at intervals to form the floating flow channel; under the rotation of the fan blades, external air flows in from the air inlet, flows out from the flow channel and finally flows out from the air outlet, the tongue end vibrates in a reciprocating manner, and the interval between the tongue end and the fan blades is changed; the fan frame comprises a frame and a bottom plate, the bottom plate is rotationally connected with the fan blades, and the frame is connected with the tongue end through the elastic piece; the tongue end comprises a swinging section and a limiting section, the swinging section is connected with the limiting section, an included angle is formed between the swinging section and the limiting section, a connecting part is formed at the joint of the swinging section and the limiting section, a first end of the elastic piece is connected with the frame, and a second end of the elastic piece is connected with the connecting part.
In an embodiment, a rotating portion is disposed at the other end of the swinging section connected to the limiting section, the swinging section is rotatably connected to the fan frame through the rotating portion, and the swinging section swings around the rotating portion under rotation of the fan blade.
In an embodiment, a limiting part is arranged between the other end of the limiting section connected with the swinging section and the fan frame, and the limiting part is used for controlling the swinging range of the tongue end.
In an embodiment, the spacing portion includes spacing and swing piece, the swing piece sets up spacing section with the other end that the swing section links to each other, spacing with the fan frame links to each other, be provided with on the spacing and hold the chamber, hold the chamber orientation spacing section one side is provided with the opening, the swing piece sets up all the time hold the intracavity under the rotation of flabellum, the swing piece is in hold intracavity pendulum motion setting.
In an embodiment, the flow channel includes a fixed flow channel and the floating flow channel, and the fixed flow channel is formed by the frame and the fan blade arranged at intervals.
In an embodiment, the fan frame further comprises a top plate, the top plate is arranged at the top of the frame, the bottom plate is arranged at the bottom of the frame, the frame is respectively connected with the bottom plate and the top plate to form the fan frame with an opening at one side, and the air inlet and the air outlet are arranged at one side of the fan frame with the opening.
Compared with the prior art, the centrifugal fan with the self-adaptive flow passage has the following beneficial effects:
1. the tongue end is arranged through the movement of the elastic piece, so that the tongue end performs small reciprocating vibration under the action of air flow compression and air pressure, thereby changing a flow passage, absorbing part of sound energy caused by the air pressure and playing a role in reducing noise;
2. the floating runner can not excessively reduce the flow of the whole air flow due to small vibration of the tongue end, so that noise is reduced on the basis of high-efficiency cooling;
3. the elastic piece provides a supporting force for the tongue end to resist wind pressure when the fan blade rotates, so that the tongue end is prevented from moving greatly, and the cooling effect of the centrifugal fan is influenced.
Therefore, the application has the characteristics of good heat dissipation performance and low noise.
Drawings
FIG. 1 is a top view of the centrifugal fan of the present application with the top plate removed;
FIG. 2 is an enlarged view of a portion of the application at A;
fig. 3 is a schematic structural view of the centrifugal fan of the present application.
The reference numerals in the figures illustrate: 1. a fan blade; 2. an air inlet; 3. an air outlet; 4. a floating runner; 5. an elastic member; 6. a frame; 7. a bottom plate; 8. a swing section; 9. a limiting section; 10. a connection part; 11. a rotating part; 12. a limiting frame; 13. a swinging plate; 14. a receiving chamber; 15. a fixed runner; 16. a top plate; 17. and a limiting part.
Detailed Description
In order to make the objects, features and advantages of the present application more comprehensible, the technical solutions according to the embodiments of the present application will be clearly described in the following with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the prior art, the tongue end is of a fixed structure, and the technical problems of heat dissipation performance and noise quality cannot be simultaneously considered.
The application provides a centrifugal fan with a self-adaptive flow passage, which comprises a fan frame and fan blades 1, wherein the fan blades 1 are accommodated in the fan frame, the flow passage is arranged in the fan frame around the fan blades 1, and the flow passage comprises an air inlet 2 and an air outlet 3; the flow channel comprises a floating flow channel 4, a tongue end is arranged at the outlet of the air inlet 2 and movably connected with the fan frame through an elastic piece 5, and the tongue end fan blades 1 are arranged at intervals to form the floating flow channel 4; under the rotation of the fan blade 1, external air flows in from the air inlet 2, finally flows out through the air outlet 3, and the tongue end vibrates reciprocally, and the interval between the tongue end and the fan blade 1 is changed.
Examples:
fig. 1-3 illustrate one embodiment of a centrifugal fan having an adaptive flow passage of the present application.
Referring to fig. 1, in an embodiment of the present application, a centrifugal fan with an adaptive flow channel is shown, and the centrifugal fan with an adaptive flow channel is installed in an electronic device for cooling, preferably in a notebook computer, so as to achieve cooling inside the notebook computer.
The centrifugal fan with the self-adaptive flow channel comprises a fan frame and fan blades 1, wherein the fan blades 1 are accommodated in the fan frame, the flow channel is arranged in the fan frame around the fan blades 1, the flow channel comprises an air inlet 2 and an air outlet 3, and under the rotation of the fan blades 1, air flows continuously enter from the air inlet 2 and flow out from the air outlet 3 after passing through the flow channel. Therefore, the temperature of the electronic equipment is reduced under the continuous circulation of the air flow.
The flow channel comprises a floating flow channel 4, the air inlet 2 is provided with a tongue end, the tongue end is movably connected with the fan frame through an elastic piece 5, and the tongue end is arranged at intervals with the fan blade 1 to form the floating flow channel 4. The floating runner 4 is the area between the tongue end and the fan blade 1. Because of the movable arrangement of the tongue ends, the distance between the floating runners 4, i.e. the distance between the tongue ends and the fan blades 1, can be varied. The floating flow channel 4 is the compression zone where the air flow enters the centrifugal fan, resulting in an increase of the air pressure therein.
Under the rotation of the fan blade 1, external air flows in from the air inlet 2 and finally flows out through the air outlet 3, the tongue end performs small reciprocating vibration under the action of compression and wind pressure of air flow, so that the flow channel is changed, sound energy caused by wind pressure is absorbed, the effect of noise reduction is exerted, and the floating flow channel 4 cannot excessively reduce the flow rate of the whole air flow due to small vibration of the tongue end. Thereby realizing noise reduction simultaneously on the basis of high-efficient cooling.
The elastic piece 5 provides a supporting force for the tongue end to resist wind pressure when the fan blade 1 rotates, so that the tongue end is prevented from moving greatly, and the cooling effect of the centrifugal fan is affected. The present application does not simply move the tongue end, and simply moves the tongue end to cause the floating runner 4 to have too large space, so that the above technical problems are not solved. The application directly absorbs sound energy caused by wind pressure through small-amplitude vibration of the movable tongue end, thereby achieving the effect of noise reduction. The noise of the fan blade 1 is also present, because the space between the floating runner 4 is not reduced too much, and the basic theory that the space between the fan blade 1 and the tongue end is small, the cooling effect is obvious, but noise is generated is satisfied.
The small vibration of the tongue end can also realize the self-adaptive adjustment of the floating runner 4 to a certain extent, thereby realizing the optimization of the airflow flow entering the floating runner 4, wherein the optimization standard is based on the condition that the cooling standard is satisfied. The change of the amplitude of the lingual vibration is mainly achieved by adjusting the elastic modulus of the elastic element 5.
Referring to fig. 3, in an embodiment of the present application, the fan frame includes a frame 6, a bottom plate 7 and a top plate 16, the frame 6 is integrally in a U-shaped plate structure, the frame 6 includes a side wall and a bottom wall, the bottom wall is in an arc structure, the side walls are connected to two ends of the bottom wall, and in a preferred state, the two side walls are symmetrically arranged along a center line of the bottom wall. The bottom plate 7 is arranged at the bottom of the frame 6, and the top plate 16 is arranged at the top of the frame 6. Under the preferred state, bottom plate 7 links to each other with frame 6 is fixed, and roof 16 can be dismantled with frame 6 and be connected, and the detachable connection of roof 16 and frame 6 makes things convenient for the maintenance of centrifugal fan. The frame 6 is connected with the top plate 16 and the bottom plate 7 respectively to form a fan frame with an opening at one side, wherein the opening of the fan frame is the opening of the frame 6, and the air outlet 3 and the air inlet 2 are arranged at one side of the fan frame with the opening so as to facilitate the inflow and outflow of air flow.
The fan blade 1 rotates under the condition of electrifying, the fan blade 1 is connected with the bottom plate 7 through a rotating shaft, the fan blade 1 is eccentrically connected with the bottom plate 7, namely, the distances from the fan blade 1 to two side walls are different in length, the distance from the fan blade 1 on one side of the air inlet 2 to the side walls is shorter than the distance from the fan blade 1 on one side of the air outlet 3 to the side walls, and therefore air flow is compressed conveniently when entering from the air inlet 2.
The frame 6 is connected with the tongue end through the elastic piece 5, and the tongue end is spaced from the bottom plate 7, so that noise caused by interference between the tongue end and the bottom plate 7 in the process of reciprocating vibration of the tongue end is avoided.
In the specific embodiment of the application, the tongue end comprises a swinging section 8 and a limiting section 9, and the swinging section 8 is connected with the limiting section 9. The swinging section 8 and the limiting section 9 are arranged at an included angle, and when the tongue end is specifically installed, attention is paid to the fact that the limiting section 9 needs to deflect away from the fan blade 1. Under the preferred state, the swinging section 8 is of an arc structure or a linear structure, when the swinging section is of an arc structure, the radian of the swinging section 8 is consistent with the radian of the bottom wall, and when the tongue end is specifically installed, the circle center of the swinging section 8 is noted to be arranged towards one side of the fan blade 1. The junction of swing section 8 and spacing section 9 forms connecting portion 10, and under the preferred state, connecting portion 10 chamfer setting all is provided with the spliced pole on connecting portion 10 and the frame 6, and the first end of elastic component 5 links to each other with connecting portion 10 through the spliced pole, and the second end of elastic component 5 links to each other with frame 6 through the spliced pole.
In the specific embodiment of the application, the other end of the swinging section 8 connected with the limiting section 9 is provided with a rotating part 11, the swinging section 8 is rotationally connected with the fan frame through the rotating part 11, the swinging section 8 swings around the rotating part 11 under the rotation of the fan blade 1, and the locking of the rotating position is realized through the arrangement of the rotating part 11.
The rotating part comprises a central hole arranged on the frame 6 and a central column connected with the swinging section 8, the central column and the central hole form clearance fit, the central hole is formed by limiting blocks integrally formed with the frame 6, namely, the central hole is arranged on the limiting blocks, an outlet is arranged on the limiting blocks and communicated with the central hole, the outlet is arranged along the axial direction of the central hole, the outlet is used for the swinging section to penetrate out, and the tongue end and the swinging angle can be limited to a certain extent.
Referring to fig. 2, in the embodiment of the present application, a limiting portion 17 is disposed between the other end of the limiting portion 9 connected to the swing portion 8 and the leg and trousers poplar, and the limiting portion 17 is used for controlling the swing range of the tongue end.
The limiting part 17 comprises a limiting frame 12 and a swinging piece 13, the swinging piece 13 is arranged at the other end of the limiting section 9, which is connected with the swinging section 8, the limiting frame 12 is connected with the fan frame, more specifically can be connected with the frame 6 and also can be connected with the bottom plate 7, and in the specific embodiment of the application, is connected with the frame 6. The limiting frame 12 is provided with a containing cavity 14, an opening is formed in one side, facing the limiting section 9, of the containing cavity 14, the swinging piece 13 is always arranged in the containing cavity 14, and the swinging piece 13 swings in the containing cavity 14 under the rotation of the fan blade 1.
In the embodiment of the present application, the flow channel includes a fixed flow and floating flow channel 4, a fixed flow channel 15 is disposed in communication with the floating flow channel 4, the fixed flow channel 15 is formed by spacing the frame 6 from the fan blade 1, and the fixed flow channel 15 is a region between the frame 6 and the fan blade 1, but does not include a portion of the frame 6 connected to the swing section 8.
In a specific embodiment of the application, a locking member is arranged on the outer side of the fan frame, and the locking member is used for being fixedly connected with the electronic equipment.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. The centrifugal fan with the self-adaptive flow passage is characterized by comprising a fan frame and fan blades (1), wherein the fan blades (1) are accommodated in the fan frame, the flow passage is arranged in the fan frame around the fan blades (1), and the flow passage comprises an air inlet (2) and an air outlet (3); the flow channel comprises a floating flow channel (4), the air inlet (2) is provided with a tongue end, the tongue end is movably connected with the fan frame through an elastic piece (5), and the tongue end and the fan blade (1) are arranged at intervals to form the floating flow channel (4); under the rotation of the fan blade (1), external air flows in from the air inlet (2) and finally flows out from the air outlet (3) through the flow channel, the tongue end vibrates in a reciprocating manner, and the interval between the tongue end and the fan blade (1) is changed;
the fan frame comprises a frame (6) and a bottom plate (7), wherein the bottom plate (7) is rotationally connected with the fan blades (1), and the frame (6) is connected with the tongue end through the elastic piece (5); the tongue end comprises a swinging section (8) and a limiting section (9), the swinging section (8) is connected with the limiting section (9), an included angle is formed between the swinging section (8) and the limiting section (9), a connecting part (10) is formed at the joint of the swinging section (8) and the limiting section (9), a first end of the elastic piece (5) is connected with the frame (6), and a second end of the elastic piece (5) is connected with the connecting part (10).
2. Centrifugal fan with adaptive flow channel according to claim 1, characterized in that the other end of the swinging section (8) connected with the limiting section (9) is provided with a rotating part (11), the swinging section (8) is rotationally connected with the fan frame through the rotating part (11), and the swinging section (8) swings around the rotating part (11) under the rotation of the fan blade (1).
3. Centrifugal fan with adaptive flow channel according to claim 1, characterized in that the other end of the limiting section (9) connected with the swinging section (8) is provided with a limiting part (17) with the fan frame, and the limiting part (17) is used for controlling the swinging range of the tongue end.
4. A centrifugal fan with a self-adaptive runner according to claim 3, characterized in that the limit part (17) comprises a limit frame (12) and a swinging piece (13), the swinging piece (13) is arranged at the other end of the limit section (9) connected with the swinging section (8), the limit frame (12) is connected with the fan frame, a containing cavity (14) is arranged on the limit frame (12), an opening is arranged on one side of the containing cavity (14) towards the limit section (9), the swinging piece (13) is always arranged in the containing cavity (14), and the swinging piece (13) swings in the containing cavity (14) under the rotation of the fan blade (1).
5. Centrifugal fan with adaptive flow channels according to any of claims 1-4, characterized in that the flow channels comprise a stationary flow channel (15) and the floating flow channel (4), the stationary flow channel (15) being formed by the frame (6) spaced apart from the fan blades (1).
6. The centrifugal fan with the adaptive runner according to claim 5, wherein the fan frame further comprises a top plate (16), the top plate (16) is arranged at the top of the frame (6), the bottom plate (7) is arranged at the bottom of the frame (6), the frame (6) is respectively connected with the bottom plate (7) and the top plate (16) to form the fan frame with an opening at one side, and the air inlet (2) and the air outlet (3) are arranged at one side of the fan frame with the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111464788.8A CN114198321B (en) | 2021-12-03 | 2021-12-03 | Centrifugal fan with self-adaptive runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111464788.8A CN114198321B (en) | 2021-12-03 | 2021-12-03 | Centrifugal fan with self-adaptive runner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114198321A CN114198321A (en) | 2022-03-18 |
| CN114198321B true CN114198321B (en) | 2023-10-27 |
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| CN202111464788.8A Active CN114198321B (en) | 2021-12-03 | 2021-12-03 | Centrifugal fan with self-adaptive runner |
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| CN117365982B (en) * | 2023-12-08 | 2024-04-02 | 合肥联宝信息技术有限公司 | Heat dissipation fan and electronic equipment |
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| CN114198321A (en) | 2022-03-18 |
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