CN109404339B - Volute assembly for high-speed electric direct-drive centrifugal fan - Google Patents
Volute assembly for high-speed electric direct-drive centrifugal fan Download PDFInfo
- Publication number
- CN109404339B CN109404339B CN201811548081.3A CN201811548081A CN109404339B CN 109404339 B CN109404339 B CN 109404339B CN 201811548081 A CN201811548081 A CN 201811548081A CN 109404339 B CN109404339 B CN 109404339B
- Authority
- CN
- China
- Prior art keywords
- volute
- spiral case
- motor casing
- centrifugal fan
- depressed part
- 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.)
- Active
Links
- 230000000994 depressogenic effect Effects 0.000 claims description 11
- 210000003734 kidney Anatomy 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 238000005266 casting Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- F04D29/40—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
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of fans
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a volute component for a high-speed electric direct-drive centrifugal fan, wherein a plurality of kidney-shaped grooves are formed in the bottom surface of the volute, the kidney-shaped grooves are arranged along the circumferential direction of an air inlet, a circular protruding part is arranged on an installation plane, the protruding part and a motor shell are coaxially arranged, the installation plane is divided into an inner concave part and an outer concave part by the protruding part, a plurality of fastening bosses are uniformly distributed on the outer concave part, a heat dissipation groove is formed between every two adjacent fastening bosses, and after the volute is fixedly connected with the motor shell, one kidney-shaped groove correspondingly communicates the concave part with one heat dissipation groove. According to the invention, the contact area between the volute and the motor shell is reduced, so that the heat directly transferred to the motor shell by the volute is reduced, and the running stability of the motor is enhanced; the invention increases the uniformity of the wall thickness distribution of the volute, and improves the manufacturability of the casting of the volute.
Description
Technical field:
the invention relates to a volute assembly for a high-speed electric direct-drive centrifugal fan.
The background technology is as follows:
the high-speed electric direct-drive centrifugal fan is limited by the length and the size of a motor rotor, most of the spiral case and the motor shell are connected through bolts, and high-temperature and high-pressure gas during the operation of the fan is discharged from an air outlet after being collected by the spiral case. Part of heat energy of the volute is continuously transferred to the motor shell through a contact part of the volute and the motor shell, so that the temperature of the motor is continuously increased, and the stable operation of the motor is not good.
The invention comprises the following steps:
the present invention is directed to solving the problems of the prior art described above by providing a volute assembly for a high-speed, electrically direct-drive centrifugal blower.
The invention adopts the technical scheme that: the utility model provides a spiral case subassembly for high-speed electricity directly drives centrifugal fan, includes spiral case and motor casing, be equipped with air inlet and air exit on the spiral case, the bottom surface of spiral case is planar structure, and the upper port of motor casing outwards extends and forms the mounting plane of platform form, and the bottom surface of spiral case passes through bolt fixed connection with the mounting plane of motor casing, be equipped with a plurality of kidney-shaped groove on the bottom surface of spiral case, the kidney-shaped groove is arranged along the circumferencial direction of air inlet be equipped with circular form bellying on the mounting plane, the bellying sets up with the motor casing is coaxial, and the bellying separates into interior depressed part and outer depressed part with the mounting plane, equipartition a plurality of fastening boss on outer depressed part, is formed with the heat dissipation groove between two adjacent fastening boss, after spiral case and motor casing fixed connection, one the kidney-shaped groove corresponds and is linked together depressed part and a heat dissipation groove.
Further, a plurality of bolt holes are formed in the bottom surface of the volute, and the bolt holes and the kidney-shaped grooves are staggered.
Further, through holes are formed in the fastening bosses, and bolts penetrate through the through holes and are connected to the bolt holes in a threaded mode.
The invention has the following beneficial effects: according to the invention, the contact area between the volute and the motor shell is reduced, so that the heat directly transferred to the motor shell by the volute is reduced, and the running stability of the motor is enhanced; the invention increases the uniformity of the wall thickness distribution of the volute, and improves the manufacturability of the casting of the volute.
Description of the drawings:
fig. 1 is a diagram showing the construction of the assembly of the present invention.
Fig. 2 is an enlarged view of a portion of the mounting surface of the scroll casing and motor housing of the present invention.
Fig. 3 is a structural view of the scroll casing in the present invention.
Fig. 4 is a structural view of a motor case according to the present invention.
The specific embodiment is as follows:
the invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the volute assembly for the high-speed electric direct-drive centrifugal fan comprises a volute 1 and a motor casing 2, wherein an air inlet 13 and an air outlet 14 are formed in the volute 1, the bottom surface of the volute 1 is of a planar structure, the upper port of the motor casing 2 extends outwards to form a platform-shaped mounting plane 20, and the bottom surface of the volute 1 is fixedly connected with the mounting plane 20 of the motor casing 2 through bolts.
The bottom surface of spiral case 1 is equipped with a plurality of kidney-shaped groove 11, and kidney-shaped groove 11 is arranged along the circumferencial direction of air inlet 13, is equipped with circular bellying 25 on motor casing 2's mounting surface 20, and bellying 25 and motor casing 2 coaxial arrangement, bellying 25 separate into interior depressed part 26 and outer depressed part 27 with mounting surface 20, equipartition a plurality of fastening boss 28 on outer depressed part 27, are formed with radiating groove 21 between two adjacent fastening boss 28. After the volute 1 is fixedly connected with the motor casing 2, a waist-shaped groove 11 on the volute 1 correspondingly communicates a concave part 26 in the motor casing 2 with a heat dissipation groove 21.
The bottom surface of the volute 1 is provided with a plurality of bolt holes 12, and the bolt holes 12 and the kidney grooves 11 are staggered. The fastening boss 28 is provided with a through hole 22, and a bolt passes through the through hole 22 and is screwed to the bolt hole 12.
The high-temperature and high-pressure gas generated during the operation of the high-speed electric direct-drive centrifugal fan is collected by the air inlet 13 of the volute 1 and then discharged by the air outlet 14. According to the invention, the waist-shaped groove 11 is formed in the volute 1 and the heat dissipation groove 21 is formed in the motor casing 2, so that when the fan operates, part of heat transmitted to the motor casing 2 by the volute 1 is transmitted to the air through the heat dissipation groove 21 by the waist-shaped groove 11 instead of being directly transmitted to the motor casing 2, the heat of the motor casing 2 can be effectively reduced to be continuously transmitted to the motor, the temperature of the motor is continuously increased, and the long-term operation stability of the motor is improved.
Through excavating the waist groove 11 to the spiral case 1, the wall thickness distribution of the spiral case can be more uniform, the casting manufacturability of the spiral case 1 is improved, the weight of the spiral case 1 is reduced, and the production cost is reduced.
The foregoing is merely a preferred embodiment of the invention, and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the invention, which modifications would also be considered to be within the scope of the invention.
Claims (3)
1. The utility model provides a spiral case subassembly for centrifugal fan is directly driven to high-speed electricity, includes spiral case (1) and motor casing (2), be equipped with air inlet (13) and air exit (14) on spiral case (1), the upper port of motor casing (2) outwards extends and forms mounting plane (20) of platform form, and the bottom surface of spiral case (1) passes through bolt fixed connection with mounting plane (20) of motor casing (2), its characterized in that: be equipped with a plurality of kidney slot (11) on the bottom surface of spiral case (1), kidney slot (11) are arranged along the circumferencial direction of air inlet (13) be equipped with circular form bellying (25) on mounting plane (20), bellying (25) and motor casing (2) coaxial setting, bellying (25) separate mounting plane (20) into interior depressed part (26) and outer depressed part (27), equipartition a plurality of fastening boss (28) on outer depressed part (27), be formed with radiating groove (21) between two adjacent fastening boss (28), after spiral case (1) and motor casing (2) fixed connection, one kidney slot (11) corresponds and is linked together interior depressed part (26) and radiating groove (21).
2. The volute assembly for a high-speed electric direct drive centrifugal fan of claim 1 wherein: the bottom surface of spiral case (1) is equipped with a plurality of bolt holes (12), and bolt hole (12) and kidney slot (11) staggered arrangement.
3. The volute assembly for a high-speed electric direct drive centrifugal fan of claim 2 wherein: the fastening boss (28) is provided with a through hole (22), and a bolt passes through the through hole (22) and is connected to the bolt hole (12) in a threaded manner.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548081.3A CN109404339B (en) | 2018-12-18 | 2018-12-18 | Volute assembly for high-speed electric direct-drive centrifugal fan |
| PCT/CN2019/102859 WO2020125055A1 (en) | 2018-12-18 | 2019-08-27 | Volute assembly of high speed electric direct drive centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548081.3A CN109404339B (en) | 2018-12-18 | 2018-12-18 | Volute assembly for high-speed electric direct-drive centrifugal fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109404339A CN109404339A (en) | 2019-03-01 |
| CN109404339B true CN109404339B (en) | 2023-09-22 |
Family
ID=65460903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811548081.3A Active CN109404339B (en) | 2018-12-18 | 2018-12-18 | Volute assembly for high-speed electric direct-drive centrifugal fan |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109404339B (en) |
| WO (1) | WO2020125055A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404339B (en) * | 2018-12-18 | 2023-09-22 | 南京磁谷科技有限公司 | Volute assembly for high-speed electric direct-drive centrifugal fan |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015059893A1 (en) * | 2013-10-21 | 2015-04-30 | 株式会社デンソー | Centrifugal blower |
| CN105351254A (en) * | 2015-12-09 | 2016-02-24 | 南京磁谷科技有限公司 | Shell of maglev air blower |
| CN205536472U (en) * | 2016-01-19 | 2016-08-31 | 广东美的制冷设备有限公司 | Micro -machine vibration isolation system |
| CN206830475U (en) * | 2017-05-18 | 2018-01-02 | 南阳神鹰装备制造有限公司 | A kind of centrifugal type oxygen tympanites blower fan |
| CN107634611A (en) * | 2017-10-18 | 2018-01-26 | 李记东 | Motor with novel cooling structure and include its fluid machinery |
| CN108843592A (en) * | 2018-06-20 | 2018-11-20 | 温州市爱光机电设备有限公司 | A kind of blower |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10125790B2 (en) * | 2014-07-24 | 2018-11-13 | Mahle International Gmbh | Centrifugal fan with reduced motor cooling noise |
| CN106286338A (en) * | 2015-06-02 | 2017-01-04 | 上海优耐特斯压缩机有限公司 | The structure that the centrifugal compressor leakage air using high-speed electric expreess locomotive is cooled down |
| JP6773492B2 (en) * | 2016-09-13 | 2020-10-21 | リンナイ株式会社 | Centrifugal fan |
| CN206338219U (en) * | 2016-12-30 | 2017-07-18 | 台州四合风机有限公司 | A kind of centrifugal blower |
| CN206889275U (en) * | 2017-04-18 | 2018-01-16 | 浙江老百姓泵业有限公司 | Centrifuge chemical pump |
| CN107477012B (en) * | 2017-09-19 | 2023-12-22 | 张家港保税区创典炉窑通风设备有限公司 | Novel high-temperature induced draft fan |
| CN207513901U (en) * | 2017-11-29 | 2018-06-19 | 河北高荣鼓风机有限公司 | A kind of centrifugal blower of good heat dissipation effect |
| CN109404339B (en) * | 2018-12-18 | 2023-09-22 | 南京磁谷科技有限公司 | Volute assembly for high-speed electric direct-drive centrifugal fan |
-
2018
- 2018-12-18 CN CN201811548081.3A patent/CN109404339B/en active Active
-
2019
- 2019-08-27 WO PCT/CN2019/102859 patent/WO2020125055A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015059893A1 (en) * | 2013-10-21 | 2015-04-30 | 株式会社デンソー | Centrifugal blower |
| CN105351254A (en) * | 2015-12-09 | 2016-02-24 | 南京磁谷科技有限公司 | Shell of maglev air blower |
| CN205536472U (en) * | 2016-01-19 | 2016-08-31 | 广东美的制冷设备有限公司 | Micro -machine vibration isolation system |
| CN206830475U (en) * | 2017-05-18 | 2018-01-02 | 南阳神鹰装备制造有限公司 | A kind of centrifugal type oxygen tympanites blower fan |
| CN107634611A (en) * | 2017-10-18 | 2018-01-26 | 李记东 | Motor with novel cooling structure and include its fluid machinery |
| CN108843592A (en) * | 2018-06-20 | 2018-11-20 | 温州市爱光机电设备有限公司 | A kind of blower |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020125055A1 (en) | 2020-06-25 |
| CN109404339A (en) | 2019-03-01 |
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|---|---|---|---|
| PB01 | Publication | ||
| 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 | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.99 Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province (Jiangning Development Zone) Patentee after: Nanjing Cigu Technology Co.,Ltd. Address before: 211102 No. 100 Jiuzhu Road, Jiangning Development Zone, Nanjing, Jiangsu Province Patentee before: NANJING CIGU Ltd.,Corp. |