CN112343836B - Heat radiation fan for electric device - Google Patents
Heat radiation fan for electric device Download PDFInfo
- Publication number
- CN112343836B CN112343836B CN202011244212.6A CN202011244212A CN112343836B CN 112343836 B CN112343836 B CN 112343836B CN 202011244212 A CN202011244212 A CN 202011244212A CN 112343836 B CN112343836 B CN 112343836B
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- Prior art keywords
- arc
- plate
- shaped
- guide plate
- base plate
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- 230000005855 radiation Effects 0.000 title claims description 7
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 description 14
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 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
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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
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
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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
- F04D29/66—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a cooling fan for an electric device, which comprises a shell, an impeller, an air outlet, an upper side plate (11), a lower side plate (12), a ring side plate (13), an arc-shaped guide plate (14), blades (21), a hub (22), a first base plate (23), a main air inlet and an auxiliary air inlet, and is characterized in that: one end of the arc-shaped guide plate is connected with the upper side plate, the other end of the arc-shaped guide plate is not connected with the lower side plate, and a second substrate (24) is arranged at the radial outer peripheral end of the first substrate. This radiator fan passes through the cooperation design of arc guide plate and second base plate, can reduce the noise under the condition of guaranteeing the amount of wind, reduces the pressure oscillation of arc guide plate both sides.
Description
Technical Field
The invention relates to the technical field of heat dissipation of electric/electrical equipment/systems, in particular to a heat dissipation fan for an electric device.
Background
A heat dissipation device in an electrical/appliance device/system generally employs a heat dissipation fan to dissipate heat, where the heat dissipation fan includes a housing 1, an impeller 2, an air outlet 3, an upper side plate 11, a lower side plate 12, a ring side plate 13, an arc-shaped air deflector 14, blades 21, a hub 22, a first base plate 23, a primary air inlet F1, and an auxiliary air inlet F2 (as shown in fig. 1-2). However, the existing heat dissipation fan has the problems of higher noise and pressure fluctuation at two sides of the arc-shaped guide plate.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a heat radiation fan for an electric device, which can reduce noise and pressure fluctuation on two sides of an arc-shaped guide plate under the condition of ensuring air volume by matching the arc-shaped guide plate with a second substrate.
In order to achieve the purpose, the invention adopts the technical scheme that:
a heat radiation fan for an electric device comprises a shell, an impeller, an air outlet, an upper side plate (11), a lower side plate (12), a ring side plate (13), an arc-shaped guide plate (14), blades (21), a hub (22), a first base plate (23), a main air inlet (F1) and an auxiliary air inlet (F2), wherein the impeller is arranged in an inner cavity of the shell, the air outlet is arranged at one radial side of the shell, the shell comprises the upper side plate and the lower side plate which are oppositely arranged, the ring side plate is connected between the upper side plate and the lower side plate, the arc-shaped guide plate is arranged in the inner cavity of the shell, the impeller comprises a plurality of blades, the hub and the first base plate, the plurality of blades are circumferentially distributed on the first base plate, the first base plate is connected with the axial lower end parts of the plurality of blades, the radial inner side ends of the plurality of blades are connected with the hub, the main air inlet is arranged at the middle part of the upper side plate, the auxiliary air inlet is arranged at the middle part of the lower side plate, the main air inlet and the auxiliary air inlet are arranged oppositely, and the air conditioner is characterized in that: one end of the arc-shaped guide plate is connected with the upper side plate, the other end of the arc-shaped guide plate is not connected with the lower side plate, and a second substrate (24) is arranged at the radial outer peripheral end of the first substrate.
Further, a first axial gap H1 is formed between the lower axial end of the arc-shaped flow guide plate and the lower side plate, a second axial gap H2 is formed between the lower axial end of the arc-shaped flow guide plate and the first base plate, and H2 is less than H1.
Further, the H2= (0.1-0.2) H1.
Furthermore, an arc-shaped flow guide part (25) is arranged on one side surface, close to the arc-shaped flow guide plate, of the second substrate, and the arc-shaped flow guide part can guide part of airflow on the upper side of the arc-shaped flow guide part to one side, far away from the arc-shaped flow guide part, of the arc-shaped flow guide plate through a second axial gap H2.
Further, the second substrate and the first substrate are integrally formed, the arc-shaped flow guide portion is a semi-arc-shaped flow guide portion, and the arc-shaped flow guide portion is arranged close to the radial inner side of the arc-shaped flow guide plate.
Further, the upstream end of the arc-shaped deflector has an inner diameter dimension substantially equal to an outer diameter dimension of the second substrate.
Further, the inner diameter of the upstream end of the arc-shaped guide plate is smaller than the outer diameter of the second substrate, and the outer diameter of the upstream end of the arc-shaped guide plate is larger than the outer diameter of the second substrate.
Furthermore, the radial outer end part of the second base plate is provided with an inclined part (26), and the distance between the inclined part and the lower end face of the arc-shaped guide plate is gradually increased from the radial inner side to the radial outer side.
According to the heat dissipation fan for the electric device, the arc-shaped guide plate and the second substrate are matched, so that the noise can be reduced under the condition of ensuring the air volume, and the pressure fluctuation at two sides of the arc-shaped guide plate can be reduced.
Drawings
FIG. 1 is a schematic front view of a heat dissipation fan in the prior art;
FIG. 2 is a schematic top view of a heat dissipation fan;
FIG. 3 is a schematic front view of a heat dissipation fan for an electrical device according to the present invention;
FIG. 4 is a schematic top view of a heat dissipation fan for an electrical device according to the present invention;
fig. 5 is a schematic structural diagram of another embodiment of a heat dissipation fan for an electrical device according to the present invention.
In the figure: the air conditioner comprises a shell 1, an impeller 2, an air outlet 3, an upper side plate 11, a lower side plate 12, a ring side plate 13, an arc-shaped guide plate 14, blades 21, a hub 22, a first base plate 23, a second base plate 24, an arc-shaped flow guide part 25, an inclined part 26, a main air inlet F1 and an auxiliary air inlet F2.
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. 3-5, a heat dissipation fan for an electrical device includes a housing 1, an impeller 2, an air outlet 3, an upper side plate 11, a lower side plate 12, a ring side plate 13, an arc-shaped flow guide plate 14, blades 21, a hub 22, a first base plate 23, a primary air inlet F1, and a secondary air inlet F2, wherein the impeller 2 is disposed in an inner cavity of the housing 1, the air outlet 3 is disposed at one radial side of the housing 1, the housing 1 includes the upper side plate 11 and the lower side plate 12 which are disposed opposite to each other, the ring side plate 13 is connected between the upper side plate 11 and the lower side plate 12, the arc-shaped flow guide plate 14 is disposed in the inner cavity of the housing 1, the impeller 2 includes a plurality of blades 21, the hub 22, and the first base plate 23, the plurality of blades 21 are circumferentially distributed on the first base plate 23, the first base plate 23 is connected to axial lower end portions of the plurality of blades 21, radial inner ends of the plurality of blades 21 are connected to the hub 22, the main air inlet F1 is disposed in the middle portion of the upper side plate 11, the middle part of lower plate 12 has supplementary air intake F2, and main air intake F1 sets up with assisting air intake F2 relatively, its characterized in that: one end of the arc-shaped guide plate 14 is connected to the upper side plate 11, the other end is not connected to the lower side plate 12, and a second substrate 24 is provided on the radial outer peripheral end of the first substrate 23.
Further, a first axial gap H1 is provided between the lower axial end of the arc-shaped baffle 14 and the lower side plate 12, a second axial gap H2 is provided between the lower axial end of the arc-shaped baffle 14 and the first base plate 23, H2 < H1, and H2= (0.1-0.2) H1, preferably 0.13-0.15.
According to the heat radiation fan for the electric device, due to the matched design of the arc-shaped guide plate 14 and the second substrate 24, the noise can be reduced under the condition of ensuring the air volume, and the pressure fluctuation at two sides of the arc-shaped guide plate 14 is reduced.
Further, one side surface of the second substrate 24 close to the arc-shaped flow guiding plate 14 is provided with an arc-shaped flow guiding part 25, and the arc-shaped flow guiding part 25 can guide part of the air flow on the upper side of the arc-shaped flow guiding plate to one side (left side) of the arc-shaped flow guiding plate 14 far away from the arc-shaped flow guiding part 25 through the second axial gap H2, so that the pressure fluctuation on two sides of the arc-shaped flow guiding plate 14 can be reduced. The second substrate 24 and the first substrate 23 are integrally formed, the arc-shaped flow guiding portion 25 is a semi-arc-shaped flow guiding portion, and the arc-shaped flow guiding portion 25 is arranged close to the radial inner side of the arc-shaped flow guiding plate 14.
As shown in fig. 3-4, further, the upstream end of the curved baffle 14 has an inner diameter that is substantially the same size as the outer diameter of the second substrate 24 ("substantially" within a conventional mechanical dimensional tolerance, such as within 5%).
In another embodiment, as shown in fig. 5, the upstream end of the arc-shaped baffle 14 has an inner diameter dimension smaller than the outer diameter dimension of the second substrate 24, and the upstream end of the arc-shaped baffle 14 has an outer diameter dimension larger than the outer diameter dimension of the second substrate 24; the radial outer end portion of the second base plate 24 is provided with an inclined portion 26, and the distance between the inclined portion 26 and the lower end face of the arc-shaped baffle plate 14 gradually increases from the radial inner side to the radial outer side. According to the heat radiation fan for the electric device, the arc-shaped guide plate 14 and the second substrate 24 are designed in a matched mode, noise can be further reduced under the condition that air volume is guaranteed, and pressure fluctuation on two sides of the arc-shaped guide plate 14 is reduced.
According to the heat dissipation fan for the electric device, the arc-shaped guide plate and the second substrate are matched, so that the noise can be reduced under the condition of ensuring the air volume, and the pressure fluctuation at two sides of the arc-shaped guide plate can be reduced.
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 (6)
1. A heat radiation fan for an electric device comprises a shell, an impeller, an air outlet, an upper side plate (11), a lower side plate (12), a ring side plate (13), an arc-shaped guide plate (14) and blades (21), wheel hub (22), first base plate (23), main air intake (F1), assist air intake (F2), the impeller has been put to the casing inner chamber, radial one side of casing has the air outlet, the casing is including the relative top plate that sets up, the bottom side plate, be connected with the ring curb plate between top plate and the bottom side plate, be provided with the arc guide plate in the casing inner chamber, the impeller includes a plurality of blades, wheel hub, first base plate, a plurality of blades distribute on first base plate along circumference, the radial medial extremity of a plurality of blades is connected with wheel hub, the middle part of top plate has main air intake, the middle part of bottom side plate has the assistance air intake, main air intake sets up with assisting the air intake relatively, its characterized in that: one end of the arc-shaped guide plate is connected with the upper side plate, the other end of the arc-shaped guide plate is not connected with the lower side plate, and a second substrate (24) is arranged at the radial outer peripheral end of the first substrate; a first axial gap H1 is arranged between the axial lower end of the arc-shaped guide plate and the lower side plate, a second axial gap H2 is arranged between the axial lower end of the arc-shaped guide plate and the first base plate, H2 < H1, and H2= (0.1-0.2) H1.
2. The heat dissipating fan for electrical devices as claimed in claim 1, wherein the second substrate is provided with an arc-shaped guiding portion (25) on a side thereof close to the arc-shaped guiding plate, and the arc-shaped guiding portion can guide part of the air flow on the upper side thereof to a side of the arc-shaped guiding plate away from the arc-shaped guiding portion through the second axial gap H2.
3. The heat dissipating fan for an electrical device as claimed in claim 2, wherein the second base plate is integrally formed with the first base plate, and the arc-shaped flow guiding portion is a semi-arc-shaped flow guiding portion disposed near a radially inner side of the arc-shaped flow guiding plate.
4. The heat dissipating fan for an electrical device as claimed in claim 3, wherein the upstream end of the curved baffle has an inner diameter dimension substantially equal to an outer diameter dimension of the second base plate.
5. The heat dissipating fan for an electrical device as claimed in claim 4, wherein the upstream end of the arc-shaped flow guide plate has an inner diameter dimension smaller than an outer diameter dimension of the second base plate, and the upstream end of the arc-shaped flow guide plate has an outer diameter dimension larger than the outer diameter dimension of the second base plate.
6. The heat dissipating fan for an electrical device as recited in claim 5, wherein the radially outer end portion of the second base plate is provided with an inclined portion (26) whose distance from the lower end surface of the arc-shaped baffle plate gradually increases from a radially inner side to a radially outer side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011244212.6A CN112343836B (en) | 2020-11-10 | 2020-11-10 | Heat radiation fan for electric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011244212.6A CN112343836B (en) | 2020-11-10 | 2020-11-10 | Heat radiation fan for electric device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112343836A CN112343836A (en) | 2021-02-09 |
| CN112343836B true CN112343836B (en) | 2022-06-07 |
Family
ID=74362409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011244212.6A Active CN112343836B (en) | 2020-11-10 | 2020-11-10 | Heat radiation fan for electric device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112343836B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607644B (en) * | 2022-04-01 | 2023-11-03 | 石家庄东方热电热力工程有限公司 | Heat radiation unit for electric device |
Citations (4)
| 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 |
| JP2010084701A (en) * | 2008-10-01 | 2010-04-15 | Daikin Ind Ltd | Blowing device |
| 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 |
-
2020
- 2020-11-10 CN CN202011244212.6A patent/CN112343836B/en active Active
Patent Citations (4)
| 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 |
| JP2010084701A (en) * | 2008-10-01 | 2010-04-15 | Daikin Ind Ltd | Blowing device |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN112343836A (en) | 2021-02-09 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20210209 Assignee: JIANGXI HAOREN ELECTRICAL EQUIPMENT CO.,LTD. Assignor: JIANGXI ZIXUAN TECHNOLOGY CO.,LTD. Contract record no.: X2023980051002 Denomination of invention: A cooling fan for electrical devices Granted publication date: 20220607 License type: Common License Record date: 20231208 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240506 Address after: No 22 Yinziwu Group Kaile Community Huitang Town Ningxiang County Changsha City Hunan Province Patentee after: Zhang Min Country or region after: China Address before: 330000 No. 899 Torch Five Road, Nanchang High-tech Industrial Development Zone, Nanchang City, Jiangxi Province Patentee before: JIANGXI ZIXUAN TECHNOLOGY CO.,LTD. Country or region before: China |
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| TR01 | Transfer of patent right |