CN114607644A - Heat radiation unit for electric/electronic device - Google Patents
Heat radiation unit for electric/electronic device Download PDFInfo
- Publication number
- CN114607644A CN114607644A CN202210340089.0A CN202210340089A CN114607644A CN 114607644 A CN114607644 A CN 114607644A CN 202210340089 A CN202210340089 A CN 202210340089A CN 114607644 A CN114607644 A CN 114607644A
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- China
- Prior art keywords
- guide plate
- plate
- arc
- impeller
- baffle
- 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
- 230000005855 radiation Effects 0.000 title abstract description 7
- 230000017525 heat dissipation Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- F04D29/66—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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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a heat radiation unit for an electric/electronic device, which comprises a shell (1) and an impeller (2), wherein the shell comprises a bottom plate (3), a cover plate (4) and a side plate (5), guide plates (6,7) are arranged between the bottom plate and the cover plate and on the periphery of the impeller, one end of each guide plate extends to the outlet end of the shell, and the heat radiation unit is characterized in that: the guide plates (6 and 7) comprise a first guide plate (6) and a second guide plate (7), the first guide plate is connected to one side of the cover plate, the second guide plate is connected to one side of the bottom plate, and an axial gap is formed between the first guide plate and the second guide plate. The pressure distribution of the two sides of the guide plate can be adjusted, so that a part of air flow flows from the radial inner side to the radial outer side of the guide plate, the pressure fluctuation and the turbulence at the outlet of the shell are reduced, and the pressure distribution uniformity at the outlet of the shell is improved.
Description
Technical Field
The present invention relates to the field of heat dissipation technology for electrical/electronic devices, and more particularly, to a heat dissipation unit for an electrical/electronic device.
Background
In the field of heat dissipation of electronic devices, a heat dissipation fan is a main heat dissipation means of an electronic device, and the heat dissipation fan comprises an axial flow fan and a centrifugal fan, wherein a guide plate is arranged between a bottom plate and a cover plate of the centrifugal fan and on the periphery of an impeller. However, the existing centrifugal fan has the problems of pressure fluctuation and turbulence at the outlet of the shell.
Disclosure of Invention
The present invention is directed to overcome the disadvantages of the prior art, and provides a heat dissipation fan for an electronic device, which can adjust the pressure distribution on both sides of a flow guide plate through the design of the flow guide plate structure, so that a part of the air flow flows from the radial inside to the radial outside of the flow guide plate, thereby reducing the pressure fluctuation and turbulence at the outlet of a housing, and improving the uniformity of the pressure distribution at the outlet of the housing.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a radiator fan for electronic device, it includes casing (1), impeller (2), the impeller holds in the casing, the impeller has a plurality of blades, the casing includes bottom plate (3), apron (4), curb plate (5), the bottom plate, the apron sets up relatively and is located the axial both sides of fan respectively, the curb plate is connected between bottom plate, apron, be provided with guide plate (6,7) between bottom plate, apron and in the periphery of impeller, the one end of guide plate extends its characterized in that to the exit end of casing: the guide plates (6 and 7) comprise a first guide plate (6) and a second guide plate (7), the first guide plate is connected to one side of the cover plate, the second guide plate is connected to one side of the bottom plate, and an axial gap is formed between the first guide plate and the second guide plate.
Furthermore, one end of the first guide plate (6) adjacent to the second guide plate is provided with a first arc-shaped part (8) and a first flat part (9), and the first arc-shaped part and the first flat part are sequentially connected.
Furthermore, one end of the second guide plate (7) adjacent to the first guide plate is provided with a second arc-shaped part (10) and a second flat part (11), and the second arc-shaped part and the second flat part are sequentially connected.
Furthermore, the axial height of the first guide plate (6) is equal to the axial height of the second guide plate (7), namely the axial gap is positioned in the middle of the axial height (H) of the side plate.
Further, the axial height (H1) of the first baffle (6) is less than the axial height of the second baffle (7).
Further, the axial height of the first guide plate is (0.2-0.4) times of the axial height (H) of the side plate.
Further, one end of the first guide plate (6) adjacent to the second guide plate is provided with a third arc-shaped part (13), and one side of the first guide plate adjacent to the impeller is provided with a first inclined part (12); one end of the second guide plate (7) adjacent to the first guide plate is provided with a fourth arc-shaped part (15), one side of the second guide plate adjacent to the impeller is provided with a second inclined part (14), and the third arc-shaped part and the fourth arc-shaped part form an axial gap.
Furthermore, the fan is a centrifugal fan, and the guide plate is an arc-shaped guide plate; the centrifugal fan is provided with a first air inlet (F1) and a second air inlet (F2), wherein the first air inlet and the second air inlet are oppositely arranged and are respectively positioned at two axial sides of the fan.
The heat radiation fan for the electronic device can adjust the pressure distribution on two sides of the guide plate through the design of the guide plate structure, so that a part of air flow flows from the radial inner side to the radial outer side of the guide plate, thereby reducing the pressure fluctuation and the turbulence at the outlet of the shell and improving the pressure distribution uniformity at the outlet of the shell.
Drawings
FIG. 1 is a schematic structural view (front sectional view) of a fan according to the present invention;
FIG. 2 is a schematic diagram of a fan structure (sectional view);
FIG. 3 is a schematic structural diagram of a fan according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another embodiment of the present invention.
In the figure: the spiral casing/volute comprises a casing/volute 1, an impeller 2, a bottom plate 3, a cover plate 4, a side plate 5, a first guide plate 6, a second guide plate 7, a first arc-shaped part 8, a first flat part 9, a second arc-shaped part 10, a second flat part 11, a first inclined part 12, a third arc-shaped part 13, a second inclined part 14 and a fourth arc-shaped part 15.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-4, a heat dissipation fan for an electronic device, which includes a housing/volute 1 and an impeller 2, wherein the impeller 2 is accommodated in the housing 1, the impeller 2 has a plurality of blades, the housing 1 includes a bottom plate 3, a cover plate 4 and a side plate 5, the bottom plate 3 and the cover plate 4 are disposed oppositely and located at two axial sides of the fan respectively, the side plate 5 is connected between the bottom plate 3 and the cover plate 4, a flow guide plate (6,7) is disposed between the bottom plate 3 and the cover plate 4 and at the periphery of the impeller 2, and one end of the flow guide plate extends to an outlet end of the housing 1, which is characterized in that: the guide plate comprises a first guide plate 6 and a second guide plate 7, the first guide plate 6 is connected to one side of the cover plate 4, the second guide plate 7 is connected to one side of the bottom plate 3, and an axial gap (the rotation axis direction of the impeller 2 is axial) is formed between the first guide plate 6 and the second guide plate 7.
The design of the guide plate structure can adjust the pressure distribution at two sides of the guide plate, so that a part of air flow flows from the radial inner side to the radial outer side of the guide plate, thereby reducing the pressure fluctuation and the turbulence at the outlet of the shell 1 and improving the pressure distribution uniformity at the outlet of the shell 1.
One end of the first guide plate 6 adjacent to the second guide plate 7 is provided with a first arc-shaped part 8 and a first flat part 9, and the first arc-shaped part 8 and the first flat part 9 are sequentially connected; one end of the second guide plate 7 adjacent to the first guide plate 6 is provided with a second arc-shaped part 10 and a second flat part 11, and the second arc-shaped part 10 and the second flat part 11 are sequentially connected. The axial height of the first baffle 6 is substantially equal to the axial height of the second baffle 7, i.e. the axial gap is located in the middle of the axial height H of the side plate 5. Through the structural design, a part of airflow can flow from the radial inner side to the radial outer side of the guide plate conveniently, so that the pressure fluctuation and the turbulence at the outlet of the shell are reduced.
The heat radiation fan is a centrifugal fan, and the guide plate is an arc guide plate; the centrifugal fan is provided with a first air inlet F1 and a second air inlet F2, and the first air inlet F1 and the second air inlet F2 are oppositely arranged and are respectively positioned at two axial sides of the fan.
As shown in fig. 3 to 4, in an embodiment, the axial height H1 of the first baffle 6 is smaller than the axial height of the second baffle 7, and further, the axial height H1 of the first baffle 6 is (0.2 to 0.4) times the axial height H of the side plate 5, and preferably, H1 is (0.3 to 0.33) H. Because the air intake amounts of the first air inlet F1 and the second air inlet F2 are different (the air intake amount of the first air inlet F1 is greater than the air intake amount of the second air inlet F2), the axial gap position is more deviated to one side of the cover plate 4, so that more part of air flow flows from the radial inner side to the radial outer side of the guide plate, the pressure fluctuation and the turbulence at the outlet of the shell are reduced, and the pressure distribution at the outlet of the shell is improved to be uniform.
In one embodiment, the end of the first baffle 6 adjacent to the second baffle 7 has a third arc-shaped portion 13, and the side of the first baffle 6 adjacent to the impeller 2 has a first inclined portion 12; one end of the second guide plate 7 adjacent to the first guide plate 6 is provided with a fourth arc-shaped part 15, one side of the second guide plate 7 adjacent to the impeller 2 is provided with a second inclined part 14, and the third arc-shaped part 13 and the fourth arc-shaped part 15 form the axial gap. Through the structural design, a part of airflow can flow from the radial inner side of the guide plate to the radial outer side conveniently, so that the pressure fluctuation and the turbulence at the outlet of the shell are reduced.
The heat radiation fan for the electronic device can adjust the pressure distribution on two sides of the guide plate through the design of the guide plate structure, so that a part of air flow flows from the radial inner side to the radial outer side of the guide plate, thereby reducing the pressure fluctuation and the turbulence at the outlet of the shell and improving the pressure distribution uniformity at the outlet of the shell.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a radiating unit for electric/electronic device, it includes radiator fan, it includes casing (1), impeller (2), the impeller holds in the casing, the impeller has a plurality of blades, the casing includes bottom plate (3), apron (4), curb plate (5), the bottom plate, the apron sets up relatively and is located the axial both sides of fan respectively, the curb plate is connected in the bottom plate, between the apron, at the bottom plate, be provided with guide plate (6,7) between the apron and in the periphery of impeller, the one end of guide plate extends to the exit end of casing, its characterized in that: the guide plates (6 and 7) comprise a first guide plate (6) and a second guide plate (7), the first guide plate is connected to one side of the cover plate, the second guide plate is connected to one side of the bottom plate, and an axial gap is formed between the first guide plate and the second guide plate.
2. The heat dissipating unit for electrical/electronic devices as claimed in claim 1, wherein the first air deflector (6) has a first curved portion (8) and a first flat portion (9) at an end adjacent to the second air deflector, and the first curved portion and the first flat portion are sequentially connected.
3. The heat dissipating unit for electrical/electronic devices as claimed in claim 2, wherein the second air guiding plate (7) has a second arc-shaped portion (10) and a second flat portion (11) at an end thereof adjacent to the first air guiding plate, and the second arc-shaped portion and the second flat portion are sequentially connected.
4. A heat dissipating unit for electrical/electronic devices according to claim 3, wherein the axial height of the first baffle (6) is equal to the axial height of the second baffle (7), i.e. the axial gap is located in the middle of the axial height (H) of the side plate.
5. The heat dissipating unit for electrical/electronic devices as claimed in claim 4, characterized in that the axial height (H1) of the first baffle (6) is smaller than the axial height of the second baffle (7).
6. The heat dissipating unit for electrical/electronic devices as recited in claim 5, wherein the axial height of the first baffle is (0.2-0.4) times the axial height (H) of the side plate.
7. The heat dissipating unit for electrical/electronic devices as set forth in claim 6, wherein one end of the first air deflector (6) adjacent to the second air deflector has a third arc-shaped portion (13), and one side of the first air deflector adjacent to the impeller has a first inclined portion (12); one end of the second guide plate (7) adjacent to the first guide plate is provided with a fourth arc-shaped part (15), one side of the second guide plate adjacent to the impeller is provided with a second inclined part (14), and the third arc-shaped part and the fourth arc-shaped part form an axial gap.
8. The heat dissipating unit for electrical/electronic devices as claimed in claim 7, wherein the fan is a centrifugal fan, and the baffle is an arc-shaped baffle; the centrifugal fan is provided with a first air inlet (F1) and a second air inlet (F2), and the first air inlet and the second air inlet are oppositely arranged and are respectively positioned at two axial sides of the fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210340089.0A CN114607644B (en) | 2022-04-01 | 2022-04-01 | Heat radiation unit for electric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210340089.0A CN114607644B (en) | 2022-04-01 | 2022-04-01 | Heat radiation unit for electric device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114607644A true CN114607644A (en) | 2022-06-10 |
| CN114607644B CN114607644B (en) | 2023-11-03 |
Family
ID=81866624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210340089.0A Active CN114607644B (en) | 2022-04-01 | 2022-04-01 | Heat radiation unit for electric device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114607644B (en) |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2344595Y (en) * | 1998-05-28 | 1999-10-20 | 嘉兴市天地植保机械厂 | Centrifugal fan shell |
| CN1793665A (en) * | 2006-01-12 | 2006-06-28 | 上海交通大学 | Low noise axial fan with rotary deflecting ring |
| US20080011461A1 (en) * | 2006-07-14 | 2008-01-17 | Foxconn Technology Co., Ltd. | Heat dissipation apparatus |
| US20080019827A1 (en) * | 2006-07-21 | 2008-01-24 | Matsushita Electric Industrial Co., Ltd. | Centrifugal fan device and eletronic device having the same |
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| CN101668954A (en) * | 2007-05-11 | 2010-03-10 | 三菱重工业株式会社 | Centrifugal blower |
| JP2010084701A (en) * | 2008-10-01 | 2010-04-15 | Daikin Ind Ltd | Blowing device |
| CN201531460U (en) * | 2009-11-05 | 2010-07-21 | 宁波煜新电器有限公司 | Wind-guiding grid for centrifugal fan |
| CN102213236A (en) * | 2010-04-09 | 2011-10-12 | 富准精密工业(深圳)有限公司 | Centrifugal fan |
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| US20160369811A1 (en) * | 2015-06-16 | 2016-12-22 | Delta Electronics, Inc. | Centrifugal fan with dual outlets in the same direction and fan frame thereof |
| CN106257057A (en) * | 2015-06-16 | 2016-12-28 | 台达电子工业股份有限公司 | The centrifugal fan of the most double air outlets and fan frame thereof |
| CN207297462U (en) * | 2017-04-18 | 2018-05-01 | 深圳沃海森科技有限公司 | Scroll casing type wind turbine for ultrathin constant temperature and humidity perseverance oxygen perseverance clear height iron top set air-conditioning |
| CN208565061U (en) * | 2018-05-22 | 2019-03-01 | 美的集团股份有限公司 | Diagonal flow fan and household appliance |
| CN110594196A (en) * | 2019-08-26 | 2019-12-20 | 太仓市华盈电子材料有限公司 | Heat radiation fan capable of changing wind direction |
| CN111734684A (en) * | 2020-07-07 | 2020-10-02 | 江西省子轩科技有限公司 | Heat radiation module of electric or electronic device |
| CN112343836A (en) * | 2020-11-10 | 2021-02-09 | 江西省子轩科技有限公司 | Heat radiation fan for electric device |
| CN215109685U (en) * | 2021-06-02 | 2021-12-10 | 南京拓和机电科技有限公司 | Compressor volute water cooling device |
| CN215170851U (en) * | 2021-03-12 | 2021-12-14 | 南京深度系统工程有限公司 | High-pressure axial flow centrifugal fan |
| CN114109869A (en) * | 2020-08-31 | 2022-03-01 | 青岛海尔智能技术研发有限公司 | Fan and household appliance using same |
-
2022
- 2022-04-01 CN CN202210340089.0A patent/CN114607644B/en active Active
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2344595Y (en) * | 1998-05-28 | 1999-10-20 | 嘉兴市天地植保机械厂 | Centrifugal fan shell |
| CN1793665A (en) * | 2006-01-12 | 2006-06-28 | 上海交通大学 | Low noise axial fan with rotary deflecting ring |
| US20080011461A1 (en) * | 2006-07-14 | 2008-01-17 | Foxconn Technology Co., Ltd. | Heat dissipation apparatus |
| US20080019827A1 (en) * | 2006-07-21 | 2008-01-24 | Matsushita Electric Industrial Co., Ltd. | Centrifugal fan device and eletronic device having the same |
| CN101668954A (en) * | 2007-05-11 | 2010-03-10 | 三菱重工业株式会社 | Centrifugal blower |
| CN101451541A (en) * | 2007-11-30 | 2009-06-10 | 富准精密工业(深圳)有限公司 | Centrifugal fan |
| CN101649845A (en) * | 2008-08-13 | 2010-02-17 | 富准精密工业(深圳)有限公司 | Centrifugal fan |
| JP2010084701A (en) * | 2008-10-01 | 2010-04-15 | Daikin Ind Ltd | Blowing device |
| CN201531460U (en) * | 2009-11-05 | 2010-07-21 | 宁波煜新电器有限公司 | Wind-guiding grid for centrifugal fan |
| CN102213236A (en) * | 2010-04-09 | 2011-10-12 | 富准精密工业(深圳)有限公司 | Centrifugal fan |
| US20130115066A1 (en) * | 2011-11-09 | 2013-05-09 | Hsin-Chen Lin | Centrifugal fan |
| CN103225626A (en) * | 2012-01-31 | 2013-07-31 | 广达电脑股份有限公司 | Centrifugal fan |
| US20160369811A1 (en) * | 2015-06-16 | 2016-12-22 | Delta Electronics, Inc. | Centrifugal fan with dual outlets in the same direction and fan frame thereof |
| CN106257057A (en) * | 2015-06-16 | 2016-12-28 | 台达电子工业股份有限公司 | The centrifugal fan of the most double air outlets and fan frame thereof |
| CN207297462U (en) * | 2017-04-18 | 2018-05-01 | 深圳沃海森科技有限公司 | Scroll casing type wind turbine for ultrathin constant temperature and humidity perseverance oxygen perseverance clear height iron top set air-conditioning |
| CN208565061U (en) * | 2018-05-22 | 2019-03-01 | 美的集团股份有限公司 | Diagonal flow fan and household appliance |
| CN110594196A (en) * | 2019-08-26 | 2019-12-20 | 太仓市华盈电子材料有限公司 | Heat radiation fan capable of changing wind direction |
| CN111734684A (en) * | 2020-07-07 | 2020-10-02 | 江西省子轩科技有限公司 | Heat radiation module of electric or electronic device |
| CN114109869A (en) * | 2020-08-31 | 2022-03-01 | 青岛海尔智能技术研发有限公司 | Fan and household appliance using same |
| CN112343836A (en) * | 2020-11-10 | 2021-02-09 | 江西省子轩科技有限公司 | Heat radiation fan for electric device |
| CN215170851U (en) * | 2021-03-12 | 2021-12-14 | 南京深度系统工程有限公司 | High-pressure axial flow centrifugal fan |
| CN215109685U (en) * | 2021-06-02 | 2021-12-10 | 南京拓和机电科技有限公司 | Compressor volute water cooling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114607644B (en) | 2023-11-03 |
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Effective date of registration: 20231012 Address after: 050000 No. 401 Pingdong Road, Chang'an District, Shijiazhuang City, Hebei Province Applicant after: SHIJIAZHUANG DONGFANG THERMAL POWER ENGINEERING Co.,Ltd. Address before: 210000 room 703, unit 2, building 2, No. 141, Hengshan Road, Jianye District, Nanjing City, Jiangsu Province Applicant before: Guan Junyan |
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