CN114810631B - Noise-reducing notebook computer cooling fan - Google Patents
Noise-reducing notebook computer cooling fan Download PDFInfo
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- CN114810631B CN114810631B CN202210247576.2A CN202210247576A CN114810631B CN 114810631 B CN114810631 B CN 114810631B CN 202210247576 A CN202210247576 A CN 202210247576A CN 114810631 B CN114810631 B CN 114810631B
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- impeller
- shaped
- strip
- bottom plate
- metal bottom
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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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
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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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
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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
- F04D29/4226—Fan casings
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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
- F04D29/663—Sound attenuation
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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
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/203—Cooling means for portable computers, e.g. for laptops
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a noise-reduction type notebook computer cooling fan, which comprises: the novel plastic plate comprises an upper cover plate, a metal bottom plate and an impeller arranged between the upper cover plate and the metal bottom plate, wherein a plurality of strip-shaped through holes are formed in the periphery of the metal bottom plate, a lower air inlet is formed between each strip-shaped through hole and a shaft core rotor part, a reinforcing rib strip is arranged between each adjacent strip-shaped through hole, the strip-shaped through holes cover a plastic plate layer, a plurality of outwards protruding parts are arranged on the surface of each plastic plate layer opposite to the impeller at intervals, the protruding parts are triangular in shape, a plurality of pairs of arc-shaped support strips are arranged on the inner side wall of each strip-shaped through hole of the metal bottom plate at intervals, and 2 arc-shaped support strips in each pair of arc-shaped support strips are oppositely arranged and are embedded into the side wall of the plastic plate layer. The invention reduces the overall weight of the axial fan, reduces the noise generated when the air enters the impeller from the air inlet along the axial direction and is discharged out of the impeller along the radial direction under the pressure difference, and improves the overall heat dissipation performance.
Description
Technical Field
The invention relates to a noise-reduction type notebook computer cooling fan, and belongs to the field of electronic product cooling.
Background
The notebook computer is a small portable personal computer and is usually 1-3 kg in weight. Along with the progress of science and technology, the notebook size is smaller and smaller, the weight is lighter and lighter, the overall performance requirement is higher and higher, the functional requirement is stronger and stronger, meanwhile, the parts are more and more, the running frequency of each part is higher and higher, the power consumption is increased along with the parts, and therefore the heat dissipation requirement on the inside of the notebook is higher and higher.
The heat dissipation fan is an important heat dissipation module for computer products, especially notebook computers, because the temperature directly affects the operation performance, stability and service life of the CPU, and the structural design of the heat dissipation fan is relatively changed along with the design development trend of the computer product form. However, the fan for the conventional electronic product is loud.
Disclosure of Invention
The invention aims to provide a noise-reduction type notebook computer cooling fan, which reduces the overall weight of an axial fan, reduces noise generated when air enters an impeller from an air inlet along the axial direction and is discharged out of the impeller along the radial direction under pressure difference, and improves the overall cooling performance.
In order to achieve the above purpose, the invention adopts the following technical scheme: a noise reduction type notebook computer cooling fan, comprising: the impeller comprises an upper cover plate, a metal bottom plate and an impeller arranged between the upper cover plate and the metal bottom plate, wherein a side wall plate is arranged at the edge of the metal bottom plate, an air outlet is formed in one side of the side wall plate, a round upper air inlet is formed in the upper cover plate, a positioning cylinder is arranged in the center of the metal bottom plate, the impeller further comprises a hub with a shaft core rotor part at the bottom and a plurality of blades distributed at intervals on the outer side wall of the hub, the shaft core rotor part of the impeller is in rotary fit connection with the positioning cylinder of the metal bottom plate, the blades of the impeller are arc-shaped in the radial direction, and the heights of the blades of the impeller gradually increase from one side close to the hub to one side far from the hub;
the metal bottom plate is located the circumference of a positioning cylinder and is provided with a plurality of strip-shaped through holes at intervals along the circumferential direction, a lower air inlet is formed between each strip-shaped through hole and a rotor part of a shaft core, a reinforcing rib strip is arranged between each adjacent strip-shaped through hole, each strip-shaped through hole covers a plastic plate layer, a plurality of outwards protruding portions are arranged on the surface of each plastic plate layer opposite to an impeller at intervals, the protruding portions are triangular in shape, a plurality of pairs of arc-shaped support strips are arranged on the inner side wall of each strip-shaped through hole of the metal bottom plate at intervals, 2 arc-shaped support strips in each pair of arc-shaped support strips are oppositely arranged, and each arc-shaped support strip is embedded in the side wall of each plastic plate layer.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, the surface of the plastic plate layer, which is opposite to the impeller, is provided with a concave area.
2. In the above scheme, the protruding portion is arranged in the concave region.
3. In the scheme, the lower air inlet is positioned right below the impeller.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages and effects:
1. the invention relates to a noise-reducing notebook computer cooling fan, which is characterized in that a plurality of strip-shaped through holes are formed in the periphery of a positioning cylinder at intervals along the circumferential direction of a metal bottom plate, a reinforcing rib is arranged between every two adjacent strip-shaped through holes, the strip-shaped through holes are covered with a plastic plate layer, a plurality of outwards-protruding parts are arranged on the surface of the plastic plate layer, which is opposite to an impeller, at intervals, so that the integral weight of the axial fan is reduced, and noise generated when air enters the impeller from an air inlet along the axial direction and is discharged out of the impeller along the radial direction under pressure difference is reduced, thereby bringing comfort to users.
2. According to the noise reduction type notebook computer cooling fan, the plurality of pairs of arc-shaped supporting strips are arranged on the inner side wall of the strip-shaped through hole of the metal bottom plate at intervals, 2 arc-shaped supporting strips in each pair of arc-shaped supporting strips are arranged in opposite directions, and are embedded into the side wall of the plastic plate layer, so that the bonding strength of the metal bottom plate and the plastic plate layer is improved, and the reliability and the service life of the fan are improved; in addition, the blades of the impeller are arc-shaped in the radial direction, and the heights of the blades of the impeller gradually increase from one side close to the hub to one side far away from the hub, so that the integral sweeping capacity of the fan is improved, more heat is discharged in a unit time in a narrower space, and the integral heat dissipation performance is improved.
Drawings
FIG. 1 is a schematic top view of a noise reduction type notebook computer cooling fan according to the present invention;
fig. 2 is a schematic diagram showing a bottom view structure of a noise reduction type notebook computer cooling fan according to the present invention;
FIG. 3 is a schematic diagram of a partial structure of a noise reduction type notebook computer cooling fan according to the present invention;
fig. 4 is a schematic diagram of an exploded structure of the noise reduction type cooling fan for a notebook computer according to the present invention.
In the above figures: 1. an upper cover plate; 2. a metal base plate; 3. an impeller; 31. a hub; 32. a blade; 301. a shaft rotor portion; 4. a side wall panel; 5. an air outlet; 6. an upper air inlet; 7. a positioning cylinder; 8. a bar-shaped through hole; 9. reinforcing ribs; 10. a plastic plate layer; 101. a recessed region; 11. a boss; 12. arc-shaped supporting strips; 13. a lower air inlet; 141. a plug pin; 142. and a jack.
Detailed Description
In the description of this patent, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element in question must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in this patent will be understood by those of ordinary skill in the art in a specific context.
Example 1: a noise reduction type notebook computer cooling fan, comprising: the impeller comprises an upper cover plate 1, a metal bottom plate 2 and an impeller 3 positioned between the upper cover plate 1 and the metal bottom plate 2, wherein the edge of the metal bottom plate 2 is provided with a side wall plate 4, one side of the side wall plate 4 is provided with an air outlet 5, the upper cover plate 1 is provided with an upper air inlet 6, the center of the metal bottom plate 2 is provided with a positioning cylinder 7, the impeller 3 further comprises a hub 31 with a shaft core rotor part 301 at the bottom and a plurality of blades 32 which are arranged on the outer side wall of the hub 31 at intervals, and the shaft core rotor part 301 of the impeller 3 is in running fit connection with the positioning cylinder 7 of the metal bottom plate 2; the blades 32 of the impeller 3 are arc-shaped in the radial direction, and the height of the blades 32 of the impeller 3 gradually increases from the side close to the hub 31 to the side far from the hub 31;
a plurality of pairs of arc-shaped supporting strips 12 are arranged on the inner side wall of the strip-shaped through hole 8 of the metal bottom plate 2 at intervals, 2 arc-shaped supporting strips 12 in each pair of arc-shaped supporting strips 12 are arranged in opposite directions, and the arc-shaped supporting strips 12 are embedded into the side wall of the plastic plate layer 10; the metal bottom plate 2 is provided with a plurality of strip-shaped through holes 8 circumferentially spaced at the periphery of the positioning cylinder 7, a reinforcing rib 9 is arranged between the adjacent strip-shaped through holes 8, the strip-shaped through holes 8 are covered with a plastic plate layer 10, and a plurality of outwards-protruding portions 11 are arranged on the surface of the plastic plate layer 10 opposite to the impeller 3 at intervals.
The surface of the plastic plate layer 10 opposite to the impeller 3 has a concave area 101, and the convex portion 11 is disposed in the concave area 101.
A lower air inlet 13 is formed between the strip-shaped through hole 8 of the metal base plate 2 and the shaft core rotor part 301.
The upper air inlet 6 of the upper cover plate 1 is a circular through hole.
The upper cover plate 1 and the side wall plate 4 are connected in a matched manner through a plurality of pairs of bolts 141 and jacks 142.
Example 2: a noise reduction type notebook computer cooling fan, comprising: the impeller comprises an upper cover plate 1, a metal bottom plate 2 and an impeller 3 positioned between the upper cover plate 1 and the metal bottom plate 2, wherein the edge of the metal bottom plate 2 is provided with a side wall plate 4, one side of the side wall plate 4 is provided with an air outlet 5, the upper cover plate 1 is provided with an upper air inlet 6, the center of the metal bottom plate 2 is provided with a positioning cylinder 7, the impeller 3 further comprises a hub 31 with a shaft core rotor part 301 at the bottom and a plurality of blades 32 which are arranged on the outer side wall of the hub 31 at intervals, and the shaft core rotor part 301 of the impeller 3 is in running fit connection with the positioning cylinder 7 of the metal bottom plate 2; the blades 32 of the impeller 3 are arc-shaped in the radial direction, and the height of the blades 32 of the impeller 3 gradually increases from the side close to the hub 31 to the side far from the hub 31;
a plurality of pairs of arc-shaped supporting strips 12 are arranged on the inner side wall of the strip-shaped through hole 8 of the metal bottom plate 2 at intervals, 2 arc-shaped supporting strips 12 in each pair of arc-shaped supporting strips 12 are arranged in opposite directions, and the arc-shaped supporting strips 12 are embedded into the side wall of the plastic plate layer 10; the metal bottom plate 2 is provided with a plurality of strip-shaped through holes 8 circumferentially spaced at the periphery of the positioning cylinder 7, a reinforcing rib 9 is arranged between the adjacent strip-shaped through holes 8, the strip-shaped through holes 8 are covered with a plastic plate layer 10, and a plurality of outwards-protruding portions 11 are arranged on the surface of the plastic plate layer 10 opposite to the impeller 3 at intervals.
The surface of the plastic plate layer 10 opposite to the impeller 3 has a concave area 101, the concave area 101 is provided with the protruding part 11, and the protruding part 11 is triangular.
The lower air inlet 13 is located directly below the impeller 3.
A lower air inlet 13 is formed between the strip-shaped through hole 8 of the metal base plate 2 and the shaft core rotor part 301.
When the noise-reducing type notebook computer cooling fan is adopted, the overall weight of the axial fan is reduced, and noise generated when air enters the impeller from the air inlet along the axial direction and is discharged out of the impeller along the radial direction under the pressure difference is reduced, so that comfort is brought to a user; in addition, the strip-shaped through holes of the metal bottom plate are provided with a plurality of pairs of arc-shaped supporting strips at intervals, 2 arc-shaped supporting strips in each pair of arc-shaped supporting strips are arranged in opposite directions, and the arc-shaped supporting strips are embedded into the side walls of the plastic plate layer, so that the bonding strength of the metal bottom plate and the plastic plate layer is improved, and the reliability and the service life of the fan are improved; in addition, the blades of the impeller are arc-shaped in the radial direction, and the heights of the blades of the impeller gradually increase from one side close to the hub to one side far away from the hub, so that the integral sweeping capacity of the fan is improved, more heat is discharged in a unit time in a narrower space, and the integral heat dissipation performance is improved.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (4)
1. The utility model provides a noise reduction type notebook computer radiator fan which characterized in that: comprising the following steps: the impeller comprises an upper cover plate (1), a metal bottom plate (2) and an impeller (3) arranged between the upper cover plate (1) and the metal bottom plate (2), wherein a side wall plate (4) is arranged at the edge of the metal bottom plate (2), an air outlet (5) is formed in one side of the side wall plate (4), a round upper air inlet (6) is formed in the upper cover plate (1), a positioning cylinder (7) is arranged in the center of the metal bottom plate (2), the impeller (3) further comprises a hub (31) with a shaft core rotor part (301) at the bottom and a plurality of blades (32) which are arranged on the outer side wall of the hub (31) at intervals, the shaft core rotor part (301) of the impeller (3) is connected with the positioning cylinder (7) of the metal bottom plate (2) in a rotating fit mode, the blades (32) of the impeller (3) are arc-shaped in the radial direction, and the heights of the blades (32) of the impeller (3) gradually increase from the side close to the hub (31) to the side far away from the hub (31);
the metal bottom plate (2) is located a plurality of strip-shaped through holes (8) are circumferentially arranged at intervals on the periphery of the positioning cylinder (7), a lower air inlet (13) is formed between each strip-shaped through hole (8) and each shaft core rotor part (301), a reinforcing rib strip (9) is arranged between each strip-shaped through hole (8), each strip-shaped through hole (8) covers a plastic plate layer (10), a plurality of outwards protruding portions (11) are arranged on the surface of each plastic plate layer (10) opposite to each impeller (3) at intervals, the protruding portions (11) are triangular in shape, a plurality of pairs of arc-shaped supporting strips (12) are arranged on the inner side wall of each strip-shaped through hole (8) of the metal bottom plate (2) at intervals, and 2 arc-shaped supporting strips (12) in each pair of arc-shaped supporting strips (12) are oppositely arranged and are embedded in the side wall of each plastic plate layer (10).
2. The noise reduction type notebook computer cooling fan according to claim 1, wherein: the surface of the plastic plate layer (10) opposite to the impeller (3) is provided with a concave area (101).
3. The noise reduction type notebook computer cooling fan according to claim 2, wherein: the concave region (101) is internally provided with the convex part (11).
4. The noise reduction type notebook computer cooling fan according to claim 1, wherein: the lower air inlet (13) is positioned right below the impeller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210247576.2A CN114810631B (en) | 2021-03-08 | 2021-03-08 | Noise-reducing notebook computer cooling fan |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210247576.2A CN114810631B (en) | 2021-03-08 | 2021-03-08 | Noise-reducing notebook computer cooling fan |
| CN202110249778.6A CN113137387B (en) | 2021-03-08 | 2021-03-08 | Heat radiation fan for notebook computer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110249778.6A Division CN113137387B (en) | 2021-03-08 | 2021-03-08 | Heat radiation fan for notebook computer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114810631A CN114810631A (en) | 2022-07-29 |
| CN114810631B true CN114810631B (en) | 2023-07-14 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110249778.6A Active CN113137387B (en) | 2021-03-08 | 2021-03-08 | Heat radiation fan for notebook computer |
| CN202210253807.0A Pending CN115045848A (en) | 2021-03-08 | 2021-03-08 | Cooling fan of intelligent terminal equipment |
| CN202210247576.2A Active CN114810631B (en) | 2021-03-08 | 2021-03-08 | Noise-reducing notebook computer cooling fan |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110249778.6A Active CN113137387B (en) | 2021-03-08 | 2021-03-08 | Heat radiation fan for notebook computer |
| CN202210253807.0A Pending CN115045848A (en) | 2021-03-08 | 2021-03-08 | Cooling fan of intelligent terminal equipment |
Country Status (1)
| Country | Link |
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| CN (3) | CN113137387B (en) |
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| CN101498317A (en) * | 2008-02-01 | 2009-08-05 | 富准精密工业(深圳)有限公司 | Heat radiating fun and impeller thereof |
| KR20090094913A (en) * | 2008-03-04 | 2009-09-09 | 최상국 | Filter device for dust prevention equipped to cooler-fan for computer |
| CN101586575A (en) * | 2008-05-23 | 2009-11-25 | 富准精密工业(深圳)有限公司 | Centrifugal cutter and use the electronic equipment of this centrifugal cutter |
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| JP2013076410A (en) * | 2013-01-18 | 2013-04-25 | Panasonic Corp | Blower device |
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| CN101382154B (en) * | 2007-09-07 | 2011-06-08 | 富准精密工业(深圳)有限公司 | Centrifugal fan |
| CN101751094B (en) * | 2008-12-10 | 2013-08-21 | 富瑞精密组件（昆山）有限公司 | Centrifugal fan and electronic device using centrifugal fan |
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2021
- 2021-03-08 CN CN202110249778.6A patent/CN113137387B/en active Active
- 2021-03-08 CN CN202210253807.0A patent/CN115045848A/en active Pending
- 2021-03-08 CN CN202210247576.2A patent/CN114810631B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413515A (en) * | 2007-10-19 | 2009-04-22 | 富准精密工业(深圳)有限公司 | Centrifugal fan |
| CN101498317A (en) * | 2008-02-01 | 2009-08-05 | 富准精密工业(深圳)有限公司 | Heat radiating fun and impeller thereof |
| KR20090094913A (en) * | 2008-03-04 | 2009-09-09 | 최상국 | Filter device for dust prevention equipped to cooler-fan for computer |
| CN101586575A (en) * | 2008-05-23 | 2009-11-25 | 富准精密工业(深圳)有限公司 | Centrifugal cutter and use the electronic equipment of this centrifugal cutter |
| CN101825094A (en) * | 2009-03-03 | 2010-09-08 | 建准电机工业股份有限公司 | Radiating fan |
| CN103089706A (en) * | 2011-10-31 | 2013-05-08 | 富瑞精密组件（昆山）有限公司 | Cooling fan |
| JP2013076410A (en) * | 2013-01-18 | 2013-04-25 | Panasonic Corp | Blower device |
| CN109578328A (en) * | 2018-12-27 | 2019-04-05 | 泛仕达机电股份有限公司 | To centrifugal blower after a kind of centrifugal wind wheel and low noise including the wind wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113137387B (en) | 2022-02-08 |
| CN113137387A (en) | 2021-07-20 |
| CN114810631A (en) | 2022-07-29 |
| CN115045848A (en) | 2022-09-13 |
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