CN115370613A - Transformer with low-noise cooling fan - Google Patents
Transformer with low-noise cooling fan Download PDFInfo
- Publication number
- CN115370613A CN115370613A CN202211168382.XA CN202211168382A CN115370613A CN 115370613 A CN115370613 A CN 115370613A CN 202211168382 A CN202211168382 A CN 202211168382A CN 115370613 A CN115370613 A CN 115370613A
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- China
- Prior art keywords
- groove
- radial section
- section
- radial
- transformer
- 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
- 238000001816 cooling Methods 0.000 title abstract description 24
- 230000017525 heat dissipation Effects 0.000 claims abstract description 6
- 241000883990 Flabellum Species 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction 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
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Transformer Cooling (AREA)
Abstract
The invention discloses a transformer with a low-noise cooling fan, wherein the cooling fan comprises an impeller and a shell, the impeller comprises a hub barrel (1), fan blades (2) and an outer ring (3), the outer ring comprises an axial section (31) and a radial section (32) which are sequentially connected, the shell comprises a backflow groove part (41), and one part of the radial section extends into the backflow groove part, and the transformer is characterized in that: the radial section (32) comprises a first groove (33) and a second groove (34), one side face of the radial section is provided with a plurality of first grooves, the other side face of the radial section is provided with a plurality of second grooves, and the radial section and the axial section are transited through an arc part. The radial section corresponding to the backflow groove part is provided with the groove, so that the noise generated when airflow flows back can be effectively reduced, the noise of the transformer is reduced, and the heat dissipation effect of the transformer is improved.
Description
Technical Field
The invention relates to the technical field of cooling of transformers, in particular to a transformer with a low-noise cooling fan.
Background
The transformer can be classified into a dry type transformer and an oil immersed type transformer according to a cooling mode, and the dry type transformer can be classified into a natural cooling type transformer and a forced cooling type transformer, and the forced cooling type transformer adopts a cooling fan for forced cooling.
The existing cooling fan comprises an impeller and a shell, wherein the impeller comprises a hub barrel, fan blades and an outer ring, the plurality of fan blades distributed along the circumferential direction are arranged on the periphery of the hub barrel, the outer ring is arranged on the periphery of the fan blades, the impeller is installed in the cylindrical shell, the outer ring comprises an axial section and a radial section which are sequentially connected, the shell comprises a backflow groove portion, and the radial section and the backflow groove portion are correspondingly arranged and part of the radial section extends into the backflow groove portion. However, the existing heat dissipation fan has the problems of higher noise level and further reduction.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a transformer with a low-noise cooling fan, wherein the radial section corresponding to the backflow groove part is provided with a groove (comprising a first groove and a second groove) and an annular groove (comprising a third groove and a fourth groove), so that the noise generated during airflow backflow can be effectively reduced, the performance of the cooling fan is improved, the noise of the transformer is reduced, and the cooling effect of the transformer is improved.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a transformer with low noise radiator fan, radiator fan includes the impeller, casing (4), the impeller includes hub section of thick bamboo (1), flabellum (2), outer loop (3), the periphery of hub section of thick bamboo is provided with a plurality of flabellums that distribute along circumference, the periphery of flabellum is provided with the outer loop, impeller mounting is in the cylindric casing, the outer loop is including axial segment (31) that connect gradually, radial section (32), the casing includes backward flow concave part (41), radial section and the corresponding setting of backward flow concave part and a part of radial section extend into backward flow concave part, its characterized in that: radial section (32) include first recess (33), second recess (34), and radial section's a side has a plurality of first recesses, and a plurality of first recesses distribute in this side along circumference, and radial section's another side has a plurality of second recesses, and a plurality of second recesses distribute in this another side along circumference, and this side sets up with another side relatively, passes through arc portion transition between radial section (32) and axial section (31).
Further, the first groove (33) comprises a first radial section and a first arc-shaped section (37) which are connected in sequence, the first radial section extends along the radial direction, and the first arc-shaped section is positioned at the arc-shaped part; the second groove (34) comprises a second radial section and a second arc-shaped section (38) which are connected in sequence, the second radial section extends along the radial direction, and the second arc-shaped section is positioned on the arc-shaped part.
Further, the first radial section is provided with a third groove (35), the third groove is an annular groove, and the third groove is positioned in the first groove (33); the second radial segment has a fourth groove (36) that is an annular groove and is located within the second groove (34).
Further, the radial size of the centers of the third groove (35) and the fourth groove (36) is substantially the same as the inner diameter size of the backflow groove portion (41).
Further, the radial segment (32) has a thickness H, the first groove (33), the second groove (34) has a depth H1, H1= (0.05-0.20) H; the third groove (35) and the fourth groove (36) have a depth H2, H2= (0.05-0.20) H.
Further, the heat radiation fan is an axial flow fan, and the backflow groove portion (41) is located at the downstream of the air flow.
According to the transformer with the low-noise cooling fan, the grooves (including the first groove and the second groove) and the annular grooves (including the third groove and the fourth groove) are arranged at the radial sections corresponding to the backflow groove parts, so that the noise generated when airflow flows back can be effectively reduced, the performance of the cooling fan is improved, the noise of the transformer is reduced, and the cooling effect of the transformer is improved.
Drawings
FIG. 1 is a schematic view of a low noise heat dissipation fan according to the present invention;
FIG. 2 is a partial enlarged view of the low noise heat dissipation fan of the present invention;
fig. 3 is a schematic diagram of a transformer with a heat dissipation fan in the prior art.
In the figure: hub 1, fan blades 2, outer ring 3, axial section 31, radial section 32, first groove 33, second groove 34, third groove 35, fourth groove 36, first arc-shaped section 37, second arc-shaped section 38, shell 4 and backflow groove section 41.
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 obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-2, a transformer with low noise radiator fan, it includes radiator fan, radiator fan includes the impeller, casing 4, the impeller includes hub barrel 1, flabellum 2, outer loop 3, the periphery of hub barrel 1 is provided with a plurality of flabellum 2 along circumferential distribution, the periphery of flabellum 2 is provided with outer loop 3, the impeller is installed in cylindric casing 4, outer loop 3 is including the axial section 31 that connects gradually, radial section 32, casing 4 includes backward flow recess part 41, radial section 32 sets up and radial section 32's partly extension is gone into backward flow recess part 41 with backward flow recess part 41 is corresponding, its characterized in that: radial section 32 includes first recess 33, second recess 34, and radial section 32's a side has a plurality of first recesses 33, and a plurality of first recesses 33 distribute in this side along circumference, and radial section 32's another side has a plurality of second recesses 34, and a plurality of second recesses 34 distribute in this another side along circumference, and this side sets up with another side relatively, passes through the arc portion transition between radial section 32 and the axial section 31.
Further, the first groove 33 includes a first radial section and a first arc-shaped section 37 connected in sequence, the first radial section extends in the radial direction, and the first arc-shaped section 37 is located at the arc-shaped portion. The second groove 34 includes a second radial section and a second arc-shaped section 38 connected in sequence, the second radial section extends along the radial direction, and the second arc-shaped section 38 is located at the arc-shaped part.
The invention provides a low-noise heat radiation fan, which can effectively reduce the noise when air flows back by arranging grooves (a first groove 33 and a second groove 34) on a radial section 32 corresponding to a backflow groove part 41, thereby improving the performance of the heat radiation fan.
Further, the first radial segment has a third groove 35, the third groove 35 being an annular groove, the third groove 35 being located within the first groove 33. The second radial segment has a fourth groove 36, the fourth groove 36 being an annular groove, the fourth groove 36 being located within the second groove 34.
Further, the radial dimension of the centers of the third groove 35 and the fourth groove 36 is substantially the same as the inner diameter dimension of the backflow groove portion 41 (within a tolerance of 10%).
Further, the radial segment 32 has a thickness H, the first groove 33, the second groove 34 have a depth H1, H1= (0.05-0.20) H, preferably H1=0.10-0.15H; the third and fourth grooves 35, 36 have a depth H2, H2= (0.05-0.20) H, preferably H2=0.10-0.15H.
The radiator fan is an axial flow fan, and the backflow groove portion 41 is located downstream of the air flow.
The transformer with the low-noise cooling fan can further reduce the noise generated when the air flows back by arranging the annular grooves (the third groove 35 and the fourth groove 36) on the radial section 32 corresponding to the backflow groove part 41, thereby improving the performance of the cooling fan.
According to the transformer with the low-noise cooling fan, the grooves (including the first groove 33 and the second groove 34) and the annular grooves (including the third groove 35 and the fourth groove 36) are arranged on the radial section 32 corresponding to the backflow groove 41, so that the noise generated when airflow flows back can be effectively reduced, the performance of the cooling fan is improved, the noise of the transformer is reduced, and the cooling effect of the transformer is improved.
The above-described embodiments are illustrative of the present invention and not restrictive thereof, and it should be understood that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (6)
1. The utility model provides a transformer with low noise radiator fan, it includes radiator fan, radiator fan includes the impeller, casing (4), the impeller includes hub barrel (1), flabellum (2), outer loop (3), the periphery of hub barrel is provided with a plurality of flabellums that distribute along circumference, the periphery of flabellum is provided with the outer loop, impeller installation is in cylindrical shell, the outer loop is including axial section (31) that connect gradually, radial section (32), the casing includes backward flow recess portion (41), radial section and the corresponding setting of backward flow recess portion and the partly of radial section extend into backward flow recess portion, its characterized in that: radial section (32) include first recess (33), second recess (34), and radial section's a side has a plurality of first recesses, and a plurality of first recesses distribute in this side along circumference, and radial section's another side has a plurality of second recesses, and a plurality of second recesses distribute in this another side along circumference, and this side sets up with another side relatively, passes through arc portion transition between radial section (32) and axial section (31).
2. The transformer with the low-noise heat dissipation fan as recited in claim 1, wherein the first groove (33) comprises a first radial section, a first arc-shaped section (37) connected in sequence, the first radial section extending in a radial direction, the first arc-shaped section being located at the arc-shaped portion; the second groove (34) comprises a second radial section and a second arc-shaped section (38) which are connected in sequence, the second radial section extends along the radial direction, and the second arc-shaped section is positioned at the arc-shaped part.
3. A transformer with a low noise heat dissipating fan according to claim 2, wherein the first radial section has a third groove (35) which is an annular groove and is located in the first groove (33); the second radial segment has a fourth groove (36) that is an annular groove and is located within the second groove (34).
4. A transformer having a low noise heat dissipating fan in accordance with claim 3, wherein the radial dimension of the center of the third groove (35) and the fourth groove (36) is substantially the same as the inner diameter dimension of the return flow groove portion (41).
5. A transformer with a low noise heat dissipating fan according to claim 4, wherein the radial segment (32) has a thickness H, the first and second grooves (33, 34) have a depth H1, H1= (0.05-0.20) H; the third groove (35) and the fourth groove (36) have a depth H2, H2= (0.05-0.20) H.
6. The transformer with a low-noise heat dissipating fan according to claim 5, wherein the heat dissipating fan is an axial flow fan, and the backflow groove portion (41) is located downstream of the air flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211168382.XA CN115370613B (en) | 2022-09-24 | 2022-09-24 | Transformer with low-noise cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211168382.XA CN115370613B (en) | 2022-09-24 | 2022-09-24 | Transformer with low-noise cooling fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115370613A true CN115370613A (en) | 2022-11-22 |
| CN115370613B CN115370613B (en) | 2023-12-22 |
Family
ID=84070764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211168382.XA Active CN115370613B (en) | 2022-09-24 | 2022-09-24 | Transformer with low-noise cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115370613B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008057480A (en) * | 2006-09-01 | 2008-03-13 | Daikin Ind Ltd | Propeller fan with shroud |
| DE102008046508A1 (en) * | 2008-09-09 | 2010-03-11 | Behr Gmbh & Co. Kg | Ventilating device for ventilating internal combustion engine of motor vehicle, has wheel cover section and fan shroud section between which gap is formed, where gap runs towards centrifugal force occurring during rotation of fan wheel |
| KR101333560B1 (en) * | 2013-07-26 | 2013-11-28 | (주)대주기계 | Cooling fan assembly having forward skewed blade |
| CN213953988U (en) * | 2020-12-18 | 2021-08-13 | 泛仕达机电股份有限公司 | Axial flow impeller with balance groove |
| CN214499469U (en) * | 2020-12-01 | 2021-10-26 | 河南澈蓝环保技术有限公司 | Axial fan for restraining noise frequency spectrum peak value |
| CN113982975A (en) * | 2021-11-11 | 2022-01-28 | 河南澈蓝环保技术有限公司 | Ultrahigh pressure low noise cooling fan |
| CN216044609U (en) * | 2021-09-08 | 2022-03-15 | 上海马陆日用友捷汽车电气有限公司 | Low-noise fan assembled by special-shaped stator and rotor |
-
2022
- 2022-09-24 CN CN202211168382.XA patent/CN115370613B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008057480A (en) * | 2006-09-01 | 2008-03-13 | Daikin Ind Ltd | Propeller fan with shroud |
| DE102008046508A1 (en) * | 2008-09-09 | 2010-03-11 | Behr Gmbh & Co. Kg | Ventilating device for ventilating internal combustion engine of motor vehicle, has wheel cover section and fan shroud section between which gap is formed, where gap runs towards centrifugal force occurring during rotation of fan wheel |
| KR101333560B1 (en) * | 2013-07-26 | 2013-11-28 | (주)대주기계 | Cooling fan assembly having forward skewed blade |
| CN214499469U (en) * | 2020-12-01 | 2021-10-26 | 河南澈蓝环保技术有限公司 | Axial fan for restraining noise frequency spectrum peak value |
| CN213953988U (en) * | 2020-12-18 | 2021-08-13 | 泛仕达机电股份有限公司 | Axial flow impeller with balance groove |
| CN216044609U (en) * | 2021-09-08 | 2022-03-15 | 上海马陆日用友捷汽车电气有限公司 | Low-noise fan assembled by special-shaped stator and rotor |
| CN113982975A (en) * | 2021-11-11 | 2022-01-28 | 河南澈蓝环保技术有限公司 | Ultrahigh pressure low noise cooling fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115370613B (en) | 2023-12-22 |
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