CN113137398A - Heat radiation fan for electronic product - Google Patents
Heat radiation fan for electronic product Download PDFInfo
- Publication number
- CN113137398A CN113137398A CN202110440563.2A CN202110440563A CN113137398A CN 113137398 A CN113137398 A CN 113137398A CN 202110440563 A CN202110440563 A CN 202110440563A CN 113137398 A CN113137398 A CN 113137398A
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- Prior art keywords
- hub
- blade
- far away
- area
- blades
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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
- 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
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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
- F04D29/30—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
- F04D29/666—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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- 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
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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
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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
Abstract
The invention discloses a cooling fan for an electronic product, which comprises an upper cover plate, a metal base plate and an impeller positioned between the upper cover plate and the metal base plate, wherein the edge of the metal base plate is provided with a side wall plate, the inner wall of the side wall plate is provided with at least one plastic plate layer, and the surface of the plastic plate layer, which is close to a fan impeller, is provided with one or more outward convex blocks; the impeller further includes wheel hub, two at least first blade district, two at least second blade districts and annular rib, the upper surface that wheel hub one end was kept away from in first blade district is higher than the upper surface that wheel hub one end was kept away from in the second blade district, the lower surface that wheel hub one end was kept away from in first blade district is less than the lower surface that wheel hub one end was kept away from in the second blade district. The invention can ensure the stability of the heat dissipation effect in the long-term use process, and can further form a peak-valley structure to improve the silencing effect.
Description
Technical Field
The invention relates to a cooling fan for an electronic product, and belongs to the field of cooling of electronic products.
Background
As people pay more attention to quality and taste of life, the pursuit of science and technology is more perfect, and portable and trendy electronic devices such as notebook computers tend to be light, thin and exquisite. In daily life and work, fans are commonly used to cool people and dissipate heat of electronic equipment. The heat dissipation fan is an important heat dissipation module for computer products (especially notebook computers), because the temperature directly affects the operating performance, stability and service life of the CPU, and the structural design of the heat dissipation fan relatively changes with the design development trend of computer product forms, wherein reducing the noise of the fan is one of the key points of the fan design.
Disclosure of Invention
The invention aims to provide a cooling fan for an electronic product, which can ensure the stability of the cooling effect in the long-term use process, and can further form a peak-valley structure to improve the silencing effect.
In order to achieve the purpose, the invention adopts the technical scheme that: a kind of electronic product uses the cooling fan, upper cover plate, metal base plate and impeller located between upper cover plate and metal base plate, the said metal base plate edge has a sidewall plate, this sidewall plate one side opens and has an air outlet, the said upper cover plate opens and enters the wind gap;
the inner wall of the side wall plate is provided with at least one plastic plate layer, and the surface of the plastic plate layer close to the fan impeller is provided with one or more outward convex blocks;
the impeller further comprises a hub, at least two first blade areas, at least two second blade areas and annular ribs, wherein the first blade areas and the second blade areas are arranged in a staggered mode along the circumferential direction of the hub, and the annular ribs are connected with the upper surfaces, far away from one end of the hub and close to the upper cover plate, of the first blade areas and the second blade areas respectively;
the upper surface that wheel hub one end was kept away from in first blade district is higher than the upper surface that wheel hub one end was kept away from in the second blade district, the lower surface that wheel hub one end was kept away from in first blade district is less than the lower surface that wheel hub one end was kept away from in the second blade district.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, the annular ribs form an undulating wave-shaped structure in the circumferential direction.
2. In the above scheme, the height of the upper surface of one end, away from the hub, of each blade in the first blade area gradually changes along the circumferential direction, and the height of the upper surface of one end, away from the hub, of each blade in the second blade area gradually changes along the circumferential direction.
3. In the above scheme, the heights of the ends, far away from the hub, of the plurality of blades in the first blade area are the same, and the heights, far away from the hub, of the plurality of blades in the second blade area are the same.
4. In the above scheme, the height of the end, far away from the hub, of the plurality of blades in the first blade area is the same as the height of the end, far away from the hub, of the plurality of blades in the second blade area.
5. In the scheme, the number of the bumps is 8-30, and the bumps are uniformly distributed on the plastic plate layer.
6. In the above scheme, 1 of the bumps is located in the central area of the plastic plate layer.
7. In the above scheme, the ratio of the area occupied by the bumps to the area of the surface of the plastic plate layer is 1: 2 to 4.
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 heat radiation fan for an electronic product, wherein an impeller of the heat radiation fan comprises a hub, at least two first blade areas and at least two second blade areas, the upper surface of one end, far away from the hub, of each first blade area is higher than the upper surface of one end, far away from the hub, of each second blade area, the lower surface of one end, far away from the hub, of each first blade area is lower than the lower surface of one end, far away from the hub, of each second blade area, and through the arrangement of the blade areas arranged in a staggered manner on two sides, the rotating speed and the rotating balance are ensured, meanwhile, the noise with the same vibration frequency generated in the running process is reduced, and the requirement of higher mute performance is met; furthermore, at least one plastic board layer is arranged on the inner wall of the side wall plate, one or more outward convex blocks are arranged on the surface, close to the fan impeller, of the plastic board layer, effective secondary distribution of airflow is achieved, the peak value of sound waves under a single frequency spectrum is reduced, and then fan noise is reduced.
2. The impeller of the cooling fan for the electronic product further comprises the annular ribs, and the annular ribs are connected with the upper surfaces, far away from one end of the hub and close to the upper cover plate, of the first blade area and the second blade area respectively, so that the thickness of the blades can be reduced, materials can be saved, the rotating speed and the stability of the impeller in the rotating process can be guaranteed, the stability of a cooling effect in the long-term use process can be guaranteed, a peak-valley structure can be further formed, and the silencing effect can be improved.
Drawings
FIG. 1 is a schematic structural diagram of a cooling fan for an electronic product according to the present invention;
FIG. 2 is a schematic structural diagram of an impeller of a cooling fan for an electronic product according to the present invention;
fig. 3 is a schematic partial structure view of a heat dissipation fan for an electronic product according to the present invention.
In the above drawings: 1. an upper cover plate; 2. a metal base plate; 3. an impeller; 301. a hub; 302. a first blade region; 303. a second blade region; 304. an annular rib; 4. a side wall panel; 5. an air outlet; 6. an upper air inlet; 7. a plastic sheet layer; 8. and (4) a bump.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present 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 expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.
Example 1: a heat dissipation fan for an electronic product includes: the device 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, and the upper cover plate 1 is provided with an upper air inlet 6;
at least one plastic plate layer 7 is arranged on the inner wall of the side wall plate 4, one or more outward convex blocks 8 are arranged on the surface of the plastic plate layer 7 close to the fan impeller, the shape can be designed for disassembling on a plastic frame body, and can also be formed at one time, but inclined pins need to be arranged on a die at the back-off position, and a base stamping part can be used for bending instead of molding;
the impeller 3 further comprises a hub 301, at least two first blade areas 302, at least two second blade areas 303 and annular ribs 304, wherein the first blade areas 302 and the second blade areas 303 are arranged in a staggered manner along the circumferential direction of the hub 301, and the annular ribs 304 are connected with the first blade areas 302 and the second blade areas 303 which are respectively far away from one end of the hub 301 and close to the upper surface of the upper cover plate 1;
the upper surface of the end, far away from the hub 1, of the first blade area 302 is higher than the upper surface of the end, far away from the hub 301, of the second blade area 303, and the lower surface of the end, far away from the hub 301, of the first blade area 302 is lower than the lower surface of the end, far away from the hub 301, of the second blade area 303.
The annular ribs 304 form an undulating wave-shaped structure in the circumferential direction; the heights of the upper surfaces of the plurality of blades in the first blade area 302, which are far away from one end of the hub 301, gradually change along the circumferential direction, and the heights of the upper surfaces of the plurality of blades in the second blade area 303, which are far away from one end of the hub 301, gradually change along the circumferential direction;
the heights of the plurality of blades in the first blade area 302, which are far away from the hub 301, are the same, and the heights of the plurality of blades in the second blade area 303, which are far away from the hub 301, are the same; the heights of the ends, far away from the hub 301, of the plurality of blades in the first blade area 302 are the same as the heights of the ends, far away from the hub 301, of the plurality of blades in the second blade area 303;
7 bumps 8 are uniformly distributed on the plastic plate layer 7; 1 of the above-mentioned lugs 8 is positioned in the central zone of the plastic plate layer 7; the ratio of the area occupied by the bump 8 to the area of the surface of the plastic board layer 7 is 1: 2; the number of the first blade regions 302 and the number of the second blade regions 303 are the same, and are both 6.
Example 2: a heat dissipation fan for an electronic product includes: the device 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, and the upper cover plate 1 is provided with an upper air inlet 6;
at least one plastic plate layer 7 is arranged on the inner wall of the side wall plate 4, and one or more outward convex blocks 8 are arranged on the surface of the plastic plate layer 7 close to the fan impeller;
the impeller 3 further comprises a hub 301, at least two first blade areas 302, at least two second blade areas 303 and annular ribs 304, wherein the first blade areas 302 and the second blade areas 303 are arranged in a staggered manner along the circumferential direction of the hub 301, and the annular ribs 304 are connected with the first blade areas 302 and the second blade areas 303 which are respectively far away from one end of the hub 301 and close to the upper surface of the upper cover plate 1;
the upper surface of the end, far away from the hub 1, of the first blade area 302 is higher than the upper surface of the end, far away from the hub 301, of the second blade area 303, and the lower surface of the end, far away from the hub 301, of the first blade area 302 is lower than the lower surface of the end, far away from the hub 301, of the second blade area 303.
The surface of the convex block 8 protruding outwards is an arc surface; the bump 8 and the plastic plate layer 7 are integrally formed; the number of the blades in the first blade area 302 and the second blade area 303 is the same;
the 9 bumps 8 are uniformly distributed on the plastic plate layer 7; 1 of the above-mentioned lugs 8 is positioned in the central zone of the plastic plate layer 7; the ratio of the area occupied by the bump 8 to the area of the surface of the plastic board layer 7 is 1: 3; the number of the first blade regions 302 and the number of the second blade regions 303 are the same, and are 4.
When the cooling fan for the electronic product is adopted, the rotating speed and the rotating balance are ensured, meanwhile, the noise with the same vibration frequency generated in the operation process is reduced, and the requirement of higher silencing performance is met through the arrangement of the blade areas with the two sides arranged in a staggered manner;
furthermore, effective secondary distribution of airflow is realized, the peak value of sound wave under a single frequency spectrum is reduced, and the noise of the fan is further reduced;
in addition, the rotating speed and the stability in the rotating process of the impeller can be guaranteed while the thickness of the blades is reduced and materials are saved, the stability of a heat dissipation effect in the long-term use process is guaranteed, a peak valley structure can be further formed, and the silencing effect is improved.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. A kind of heat-dissipating fan for electronic product, characterized by that: the method comprises the following steps: the device 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), and the upper cover plate (1) is provided with an upper air inlet (6);
at least one plastic plate layer (7) is arranged on the inner wall of the side wall plate (4), and one or more outward convex blocks (8) are arranged on the surface of the plastic plate layer (7) close to the fan impeller;
the impeller (3) further comprises a hub (301), at least two first blade areas (302), at least two second blade areas (303) and annular ribs (304), wherein the first blade areas (302) and the second blade areas (303) are arranged in a staggered mode along the circumferential direction of the hub (301), and the annular ribs (304) are respectively far away from one end of the hub (301) and close to the upper surface of the upper cover plate (1) with the first blade areas (302) and the second blade areas (303);
the upper surface of one end, far away from the hub (1), of the first blade area (302) is higher than the upper surface of one end, far away from the hub (301), of the second blade area (303), and the lower surface of one end, far away from the hub (301), of the first blade area (302) is lower than the lower surface of one end, far away from the hub (301), of the second blade area (303).
2. The heat dissipation fan for electronic products as claimed in claim 1, wherein: the annular ribs (304) form an undulating wave-shaped structure in the circumferential direction.
3. The heat dissipation fan for electronic products according to any one of claims 1, wherein: the height of the upper surface of one end, far away from the hub (301), of a plurality of blades in the first blade area (302) gradually changes along the circumferential direction, and the height of the upper surface of one end, far away from the hub (301), of a plurality of blades in the second blade area (303) gradually changes along the circumferential direction.
4. The heat dissipation fan for electronic products as claimed in claim 3, wherein: the heights of a plurality of blades in the first blade area (302) far away from one end of the hub (301) are the same, and the heights of a plurality of blades in the second blade area (303) far away from one end of the hub (301) are the same.
5. The heat dissipation fan for electronic products as claimed in claim 3 or 4, wherein: the height of one end, far away from the hub (301), of the plurality of blades in the first blade area (302) is the same as the height of one end, far away from the hub (301), of the plurality of blades in the second blade area (303).
6. The heat dissipation fan for electronic products as claimed in claim 1, wherein: 8-30 lugs (8) are uniformly distributed on the plastic plate layer (7).
7. The heat dissipation fan for electronic products as claimed in claim 1, wherein: 1 the lug (8) is positioned in the central area of the plastic plate layer (7).
8. The heat dissipating fan for electronic products as claimed in claim 1 or 7, wherein: the ratio of the occupied area of the convex block (8) to the surface area of the plastic plate layer (7) is 1: 2 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110440563.2A CN113137398B (en) | 2021-04-23 | 2021-04-23 | Heat radiation fan for electronic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110440563.2A CN113137398B (en) | 2021-04-23 | 2021-04-23 | Heat radiation fan for electronic product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113137398A true CN113137398A (en) | 2021-07-20 |
| CN113137398B CN113137398B (en) | 2022-04-08 |
Family
ID=76813552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110440563.2A Active CN113137398B (en) | 2021-04-23 | 2021-04-23 | Heat radiation fan for electronic product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113137398B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020029876A1 (en) * | 2000-07-10 | 2002-03-14 | Thermal Form & Function Llc | Corrugated matrix heat sink for cooling electronic components |
| TW200603715A (en) * | 2004-07-06 | 2006-01-16 | Sunonwealth Electr Mach Ind Co | Impeller for radial-flow heat-dissipation fan |
| CN101285484A (en) * | 2007-04-10 | 2008-10-15 | 台达电子工业股份有限公司 | Fan and its impeller |
| TW201016976A (en) * | 2008-10-24 | 2010-05-01 | Foxconn Tech Co Ltd | Centrifugal fan |
| CN103089706A (en) * | 2011-10-31 | 2013-05-08 | 富瑞精密组件（昆山）有限公司 | Cooling fan |
| CN107288924A (en) * | 2017-08-17 | 2017-10-24 | 联想(北京)有限公司 | A kind of electronic equipment and its radiator fan |
| CN108612671A (en) * | 2018-05-23 | 2018-10-02 | 奇鋐科技股份有限公司 | Fan wheel structure |
| CN112303009A (en) * | 2020-11-17 | 2021-02-02 | 昆山品岱电子有限公司 | Cicada wing type efficient heat dissipation fan blade |
| CN112628165A (en) * | 2019-10-08 | 2021-04-09 | 台达电子工业股份有限公司 | Fan and fan impeller thereof |
-
2021
- 2021-04-23 CN CN202110440563.2A patent/CN113137398B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020029876A1 (en) * | 2000-07-10 | 2002-03-14 | Thermal Form & Function Llc | Corrugated matrix heat sink for cooling electronic components |
| TW200603715A (en) * | 2004-07-06 | 2006-01-16 | Sunonwealth Electr Mach Ind Co | Impeller for radial-flow heat-dissipation fan |
| CN101285484A (en) * | 2007-04-10 | 2008-10-15 | 台达电子工业股份有限公司 | Fan and its impeller |
| TW201016976A (en) * | 2008-10-24 | 2010-05-01 | Foxconn Tech Co Ltd | Centrifugal fan |
| CN103089706A (en) * | 2011-10-31 | 2013-05-08 | 富瑞精密组件（昆山）有限公司 | Cooling fan |
| CN107288924A (en) * | 2017-08-17 | 2017-10-24 | 联想(北京)有限公司 | A kind of electronic equipment and its radiator fan |
| CN108612671A (en) * | 2018-05-23 | 2018-10-02 | 奇鋐科技股份有限公司 | Fan wheel structure |
| CN112628165A (en) * | 2019-10-08 | 2021-04-09 | 台达电子工业股份有限公司 | Fan and fan impeller thereof |
| CN112303009A (en) * | 2020-11-17 | 2021-02-02 | 昆山品岱电子有限公司 | Cicada wing type efficient heat dissipation fan blade |
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| Publication number | Publication date |
|---|---|
| CN113137398B (en) | 2022-04-08 |
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