CN207853677U - From cooling external rotor electric machine - Google Patents
From cooling external rotor electric machine Download PDFInfo
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- CN207853677U CN207853677U CN201820325354.7U CN201820325354U CN207853677U CN 207853677 U CN207853677 U CN 207853677U CN 201820325354 U CN201820325354 U CN 201820325354U CN 207853677 U CN207853677 U CN 207853677U
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- blade
- end cap
- outer barrel
- field spider
- rotor field
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Abstract
The utility model is related to a kind of from cooling external rotor electric machine, the rotor field spider component includes rotor field spider and permanent magnetic steel, magnet steel sticks in rotor field spider cavity inner wall, magnet steel is connect with stator module fit clearance, the rotor field spider includes outer barrel and end cap, end cap is arranged in outer barrel one end, it is provided with shaft hole among the end cap, hollow out is provided with several blades on the end cap, blade is evenly distributed on shaft hole periphery, and end cap and the outer barrel of hollow out collectively form aerofoil fan；There are gaps between the rotor field spider and fixed frame component；Gap, stator module between the rotor field spider and fixed frame component and the gap between magnet steel, the hollow out gap composition cold air of outer barrel intracoelomic cavity and end cap and hot-air circulation canal.Using punching press or hot investment casting, direct hollow out goes out blade on rotor field spider, constitutes aerofoil fan, to realize in the case where not increasing motor volume, achievees the purpose that motor is quickly cooled down.
Description
Technical field
The utility model is related to arrive external rotor electric machine field, and in particular to the type of cooling of external rotor electric machine.
Background technology
External rotor electric machine due to its torque it is big, it is light-weight widely used in recent years, especially in middle-size and small-size Permanent Magnet and Electric
The utilization of machine field is more extensive.It is ripe day by day with fine blanking technique and precision casting technology, make the system of external rotor electric machine
Make technique more simply and conveniently.But traditional another plus separate fan the type of cooling makes motor volume become larger, and reactive loss and makes an uproar
Sound increases, dynamic balancing（Or static balance）Difficulty, complex process and cost increase.
Invention content
To solve the above-mentioned problems, the utility model proposes a kind of from cooling external rotor electric machine, utilizes punching press or accurate casting
It makes, direct hollow out goes out blade on rotor field spider, constitutes aerofoil fan, to realize in the case where not increasing motor volume,
Achieve the purpose that motor is quickly cooled down.
Technical solution of the present invention：
A kind of certainly cooling external rotor electric machine, by rotor field spider component, stator module, fixed frame component and output shaft assembly
Combination installation is constituted, and the rotor field spider component includes rotor field spider and permanent magnetic steel, and magnet steel sticks in rotor field spider type
Cavity wall, magnet steel are connect with stator module fit clearance, and the rotor field spider includes outer barrel and end cap, and end cap setting exists
Outer barrel one end is provided with shaft hole among the end cap, and hollow out is provided with several blades on the end cap, and blade is uniform
It is distributed in shaft hole periphery, end cap and the outer barrel of hollow out collectively form aerofoil fan；The rotor field spider and fixed frame group
There are gaps between part；Gap, stator module between the rotor field spider and fixed frame component and the gap between magnet steel,
The hollow out gap of outer barrel intracoelomic cavity and end cap constitutes cold air and hot-air circulation canal.
The output shaft of external rotor electric machine output shaft assembly rotates, and the rotation of rotor field spider component, blade rotation is driven directly will
Motor heat is extracted out from inside, and motor is made to be cooled down, to realize purpose that motor is quickly cooled down.
Above-mentioned technical proposal is improved further and is refined, the direct punch forming of the end cap goes out several blades,
Blade one end connects shaft hole, and blade a side is located at outer barrel inner cavity, and another side of blade is located at outside outer barrel intracoelomic cavity
Portion.
Above-mentioned technical proposal is improved further and is refined, the end cap is molded with blade one hot investment casting,
Blade a side connection end cap, another side of blade are located at outer barrel inner cavity.
Above-mentioned technical proposal is improved further and is refined, the end cap is molded with blade one hot investment casting,
Blade one end connects shaft hole, and the blade other end connects outer barrel, and blade a side is located at outer barrel inner cavity, and blade is another
Side is located at outer barrel lumen outer.
Above-mentioned technical proposal is improved further and is refined, the outer barrel and end cap one, are steel plate stretching
Punching press or accurate cast molding, processing casting are convenient, fast.
Above-mentioned technical proposal is improved further and is refined, the shape and quantity of the blade are several according to motor
Depending on what shape size, watt level and working environment, and the quantity at least two of blade, blade rotation, from rotor field spider
Gap sucks cold air to motor internal heat exchange, then by hot-air between rotor field spider and blade between fixed frame component
Gap is discharged, hot and cold air circulation, and motor heat is extracted out from inside.
Above-mentioned technical proposal is improved further and is refined, the blade is located at the part of outer barrel inner cavity
The creepage distance that safety standard defined is kept between the stator line packet of stator module effectively prevent blade rotation touching stator
Component in turn results in motor damage.
Above-mentioned technical proposal is improved further and is refined, the output shaft mistake of the shaft hole and output shaft assembly
Be full of mating connection, and by locking nut and fasten, be completely embedded, fastened using dual connection, effectively prevent output shaft with
It is loosened between rotor field spider component.
Above-mentioned technical proposal is improved further and is refined, go or blade is added to be located at outer barrel lumen outer part
Material, adjusts rotor field spider component dynamic or static balance, dynamic balancing, static balance are easy to adjust, quick.
The benefit of the generation of the utility model：Be molded punching press in rotor field spider or during hot investment casting, using punching press and
The process means of hot investment casting, direct hollow out goes out blade on rotor field spider, forms aerofoil fan；It is needed according to machine-tool
The needs of direction of rotation and system cooling determine rotation inclination direction and tilt angles；It is cooled down according to the size of motor and emphasis
Position determines the shape and quantity of blade.With the rotation of outer rotor, aerofoil fan can directly take out motor heat from inside
Go out, form heat exchange, motor is made to be cooled down, reaching reduces cost, reduce noise, reduce reactive loss, simplify technique, improve
The purpose of assembly work efficiency.
Description of the drawings
Fig. 1 is from cooling outer rotor motor structure schematic diagram.
Fig. 2 is rotor field spider component half section structure diagram.
Fig. 3 is that 1 Axial-Flow fan structure of specific embodiment is intended to.
Fig. 4 is the half section structure diagram of Fig. 3.
Fig. 5 is that 2 Axial-Flow fan structure of specific embodiment is intended to.
Fig. 6 is the half section structure diagram of Fig. 5.
Fig. 7 is 3 axis flow fan front view of specific embodiment.
Fig. 8 is 3 axis flow fan vertical view of specific embodiment.
Fig. 9 is from type of cooling schematic diagram under cooling external rotor electric machine working condition.
01 stator module of rotor field spider component, 02 fixed frame component, 03 output shaft assembly, 04 rotor field spider 05 in figure
06 08 end cap of blade 07-1 blade 07-2 blade 07-3 outer barreies of magnet steel, 09 shaft hole 10.
Specific implementation mode
Specific embodiment 1
Picture 1-4,9, it is a kind of from cooling external rotor electric machine, by rotor field spider component 01, stator module 02, fixed frame component
03 and output shaft assembly 04 combination installation constitute, the rotor field spider component 01 include rotor field spider 05 and permanent magnetic steel
06, magnet steel 06 sticks in 05 cavity inner wall of rotor field spider, and magnet steel 06 is connect with 02 fit clearance of stator module, the rotor branch
Frame includes outer barrel 08 and end cap 09, and the setting of end cap 09 is provided with shaft among 08 one end of outer barrel, the end cap 09
Hole 10, hollow out is provided with several blade 07-1 on the end cap 09, and blade 07-1 is evenly distributed on 10 periphery of shaft hole, hollow out
End cap 09 and outer barrel 08 collectively form aerofoil fan；Between the rotor field spider 05 and fixed frame component 03 there are
Gap；Gap, stator module 02 between the rotor field spider 05 and fixed frame component 03 and the gap between magnet steel 06, outer barrel
08 inner cavity of body and the hollow out gap of end cap 09 constitute cold air and hot-air circulation canal；The end cap 09 directly strikes out
Type goes out several blade 07-1, and the one end blade 07-1 connects shaft hole 10, and blade 07-1 a sides are located at 08 inner cavity of outer barrel,
Another sides blade 07-1 are located at 08 lumen outer of outer barrel；The outer barrel 08 and 09 one of end cap, are rushed for steel plate stretching
Pressure or accurate cast molding, processing casting are convenient, fast；The shape and quantity of the blade 07-1, according to motor geometry
Depending on shape size, watt level and working environment, and the quantity at least two of blade 07-1, blade 07-1 rotations, from turning
Gap between submounts 05 and fixed frame component 03 sucks cold air to motor internal heat exchange, then by hot-air from end cap 09
Hollow out gap discharge, hot and cold air circulation, by motor heat from inside extract out；The blade 07-1 is located in outer barrel
The creepage distance that safety standard defined is kept between the part in intracavitary portion and the stator line packet of stator module 02, effectively prevent leaf
Piece 07-1 rotation touching stator modules, in turn result in motor damage；The output shaft interference of the shaft hole and output shaft assembly
It is connected, and by locking nut and fastens, be completely embedded, fastened using dual connection, effectively prevent output shaft and turn
It is loosened between submounts component；The material for going or blade being added to be located at outer barrel lumen outer part, it is dynamic to adjust rotor field spider component
Balance or static balance, dynamic balancing, static balance are easy to adjust, quick.
Specific embodiment 2
It such as Fig. 1-2,5-6,9, is further improved on the basis of specific embodiment 1, the end cap 09 and blade 07-2
Integrated hot investment casting molding, blade 07-2 a sides connection end cap 09, another sides blade 07-2 are located at intracavitary in outer barrel 08
Portion.
Specific embodiment 3
It such as Fig. 1-2,7-9, is further improved on the basis of specific embodiment 1, the end cap 09 and blade 07-3 mono-
Body hot investment casting is molded, and the one end blade 07-3 connects shaft hole 10, and the blade 07-3 other ends connect outer barrel 08, blade 07-3 mono-
Side is located at 08 inner cavity of outer barrel, and blade 07-3 a sides are located at 08 lumen outer of outer barrel.
Due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for the common of the art
For technical staff, without departing from the principle of this utility model, several improvement, retouching or variation can also be made,
Above-mentioned technical characteristic can be combined in the right way；These improve retouching, variation or combination, or it is not improved will be real
Other occasions are directly applied to novel design and technical solution, are regarded as the scope of protection of the utility model.
Claims (9)
1. it is a kind of from cooling external rotor electric machine, by rotor field spider component, stator module, fixed frame component and output shaft assembly group
It closes installation to constitute, the rotor field spider component includes rotor field spider and permanent magnetic steel, and magnet steel sticks in rotor field spider cavity
Inner wall, magnet steel are connect with stator module fit clearance, it is characterised in that：The rotor field spider includes outer barrel and end cap,
End cap setting is provided with shaft hole among outer barrel one end, the end cap, if hollow out is provided with cured leaf on the end cap
Piece, blade are evenly distributed on shaft hole periphery, and end cap and the outer barrel of hollow out collectively form aerofoil fan；The rotor field spider
There are gaps between fixed frame component；Gap, stator module and magnet steel between the rotor field spider and fixed frame component
Between gap, outer barrel intracoelomic cavity and end cap hollow out gap constitute cold air and hot-air circulation canal.
2. according to claim 1 a kind of from cooling external rotor electric machine, it is characterised in that：The end cap directly strikes out
Type goes out several blades, and blade one end connects shaft hole, and blade a side is located at outer barrel inner cavity, and another side of blade is located at
Outer barrel lumen outer.
3. according to claim 1 a kind of from cooling external rotor electric machine, it is characterised in that：The end cap and blade one
Hot investment casting is molded, and blade a side connection end cap, another side of blade is located at outer barrel inner cavity.
4. according to claim 1 a kind of from cooling external rotor electric machine, it is characterised in that：The end cap and blade one
Hot investment casting is molded, and blade one end connects shaft hole, and the blade other end connects outer barrel, and blade a side is located at outer barrel intracoelomic cavity
Inside, another side of blade are located at outer barrel lumen outer.
5. according to claim 1 a kind of from cooling external rotor electric machine, it is characterised in that：The outer barrel and end cap one
Body is steel plate stretching punching press or accurate cast molding.
6. a kind of from cooling external rotor electric machine according to Claims 2 or 3 or 4, it is characterised in that：The shape of the blade
Shape and quantity, depending on motor geometry sizes, watt level and working environment, and the quantity at least two of blade.
7. according to claim 6 a kind of from cooling external rotor electric machine, it is characterised in that：The blade is located at outer barrel
The creepage distance of safety standard defined is kept between the part of inner cavity and the stator line packet of stator module.
8. according to claim 1 a kind of from cooling external rotor electric machine, it is characterised in that：The shaft hole and output shaft
The output shaft interference fit connection of component, and by locking nut and fasten.
9. according to claim 2 or 4 a kind of from cooling external rotor electric machine, it is characterised in that：It goes or adds blade positioned at outer
The material of cylinder lumen exterior section adjusts rotor field spider component dynamic or static balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820325354.7U CN207853677U (en) | 2018-03-09 | 2018-03-09 | From cooling external rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820325354.7U CN207853677U (en) | 2018-03-09 | 2018-03-09 | From cooling external rotor electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207853677U true CN207853677U (en) | 2018-09-11 |
Family
ID=63409101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820325354.7U Active CN207853677U (en) | 2018-03-09 | 2018-03-09 | From cooling external rotor electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207853677U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155758A (en) * | 2018-03-09 | 2018-06-12 | 上海惠深工具科技有限公司 | From cooling external rotor electric machine |
| CN109304493A (en) * | 2018-11-22 | 2019-02-05 | 上海惠深工具科技有限公司 | External rotor electric machine direct-drive type drilling machine or milling machine |
| CN110957833A (en) * | 2019-11-12 | 2020-04-03 | 程桂香 | Rotor of motor and motor |
| GB2583398A (en) * | 2018-11-22 | 2020-10-28 | Zheng Zhiying | Direct-drive drilling machine or milling machine with external rotor electric motor |
| CN117206913A (en) * | 2023-10-30 | 2023-12-12 | 上海惠深工具科技有限公司 | Outer rotor motor direct-drive type milling and drilling machine |
| JP7406137B1 (en) | 2022-07-21 | 2023-12-27 | ダイキン工業株式会社 | Motor, blower, and refrigeration cycle equipment |
-
2018
- 2018-03-09 CN CN201820325354.7U patent/CN207853677U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155758A (en) * | 2018-03-09 | 2018-06-12 | 上海惠深工具科技有限公司 | From cooling external rotor electric machine |
| CN109304493A (en) * | 2018-11-22 | 2019-02-05 | 上海惠深工具科技有限公司 | External rotor electric machine direct-drive type drilling machine or milling machine |
| WO2020103219A1 (en) * | 2018-11-22 | 2020-05-28 | 郑智颖 | Direct-drive drilling machine or milling machine with external rotor electric motor |
| GB2583398A (en) * | 2018-11-22 | 2020-10-28 | Zheng Zhiying | Direct-drive drilling machine or milling machine with external rotor electric motor |
| GB2583398B (en) * | 2018-11-22 | 2022-10-12 | Zheng Zhiying | Outer rotor motor direct-drive drilling or milling machine |
| CN109304493B (en) * | 2018-11-22 | 2024-05-14 | 上海惠深工具科技有限公司 | Outer rotor motor direct-drive type milling and drilling machine |
| CN110957833A (en) * | 2019-11-12 | 2020-04-03 | 程桂香 | Rotor of motor and motor |
| JP7406137B1 (en) | 2022-07-21 | 2023-12-27 | ダイキン工業株式会社 | Motor, blower, and refrigeration cycle equipment |
| WO2024019016A1 (en) * | 2022-07-21 | 2024-01-25 | ダイキン工業株式会社 | Motor, fan device, and refrigeration cycle device |
| CN117206913A (en) * | 2023-10-30 | 2023-12-12 | 上海惠深工具科技有限公司 | Outer rotor motor direct-drive type milling and drilling machine |
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