CN107645216A - The cast-aluminum rotor and its processing technology of a kind of motor - Google Patents
The cast-aluminum rotor and its processing technology of a kind of motor Download PDFInfo
- Publication number
- CN107645216A CN107645216A CN201711035832.7A CN201711035832A CN107645216A CN 107645216 A CN107645216 A CN 107645216A CN 201711035832 A CN201711035832 A CN 201711035832A CN 107645216 A CN107645216 A CN 107645216A
- Authority
- CN
- China
- Prior art keywords
- steel sheet
- cast
- cast aluminium
- silicon steel
- high resistance
- 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.)
- Pending
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 48
- 238000005516 engineering process Methods 0.000 title claims abstract description 9
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 39
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000004411 aluminium Substances 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 16
- 239000004593 Epoxy Substances 0.000 claims abstract description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 12
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 2
- 238000007590 electrostatic spraying Methods 0.000 abstract 1
- 235000010210 aluminium Nutrition 0.000 description 18
- 230000010349 pulsation Effects 0.000 description 3
- 239000008199 coating composition Substances 0.000 description 2
- 238000005555 metalworking Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical group [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Manufacture Of Motors, Generators (AREA)
- Induction Machinery (AREA)
Abstract
The cast-aluminum rotor and its processing technology of a kind of motor, it includes stacked silicon steel sheet（1）, cast aluminium sliver（2）, cast aluminium ring（3）, multiple closed slots are symmetrically arranged with silicon steel sheet（6）, cast aluminium sliver passed through in closed slot, and the both ends of cast aluminium sliver are connected with conducting ring, and high resistance coating is provided between cast aluminium sliver and closed slot（7）, high resistance coating, which forms, is：Particle diameter is 14 μm of the 40wt% of epoxy powder 20, and particle diameter is 5 10 μm of the wt% of alumina powder 60 80；The thickness range of the high resistance coating obtained through electrostatic spraying is between 0.04 millimeter to 0.08 millimeter.The solution have the advantages that being provided with high resistance coating between cast aluminium sliver and closed slot, the contact resistance between cast aluminium sliver and closed slot is greatly increased, reduces cross-path loss, improves the efficiency of motor.The resistivity of described high resistance coating is high, and cost of material is low, easy to make.
Description
Technical field
The present invention relates to a kind of cast-aluminum rotor of motor.
Background technology
Load added losses of the structure of the rotor of motor to motor have important influence, and it is main to load added losses
It is made up of the surface loss of rotor, cross-path loss, pulsation loss, high frequency damage etc..Table is easily produced for cast-aluminum rotor
Area loss and cross-path loss, and surface loss and cross-path loss have main influence to load added losses.Therefore have
Necessity provides a kind of new motor cast-aluminum rotor to improve the operational efficiency of motor.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of cast-aluminum rotor of motor, the cast-aluminum rotor can effectively drop
Low-load added losses.
The technical scheme that the present invention solves technical problem is a kind of cast-aluminum rotor of motor, and it is included by stacked silicon
Iron core 1, cast aluminium sliver 2, the cast aluminium ring 3 of steel disc composition, are symmetrically arranged with multiple closed slots 6 on silicon steel sheet, cast aluminium sliver pass through in
In closed slot, cast aluminium ring is located at silicon steel sheet both sides, and the both ends of cast aluminium sliver form overall, its feature with cast aluminium ring by pouring into a mould
It is that high resistance coating 7 is provided between cast aluminium sliver and closed slot, high resistance coating composition is：Particle diameter is 1-4 μm of epoxy powder
20-40wt%, particle diameter are 5-10 μm of alumina powder 60-80 wt%；The thickness range of described high resistance coating is at 0.04 millimeter
To between 0.08 millimeter.
The cast-aluminum rotor processing technology step of described motor includes：
1st, silicon steel sheet is stacked；
2nd, the epoxy powder 20-40wt% that particle diameter the is 1-4 μm alumina powder 60-80 wt% for being 5-10 μm with particle diameter are mixed；
3rd, the epoxy powder and alumina powder of mixing are electrostatically sprayed into device to be sprayed in the closed slot of silicon steel sheet, the thickness of coating
Between 0.04 millimeter to 0.08 millimeter；
4th, the silicon steel sheet after spraying is heated to 180 DEG C -200 DEG C, is incubated 15-20 minutes, is allowed to solidify, formed high resistance and apply
Layer；
5th, the silicon steel sheet after curing of coatings is put into cast-aluminum die, pours and outpour cast aluminium sliver, cast aluminium ring.
The solution have the advantages that be provided with high resistance coating between cast aluminium sliver and closed slot, make cast aluminium sliver with
Contact resistance between closed slot greatly increases, and reduces cross-path loss, improves the efficiency of motor.Described height electricity
The resistivity of resistance coating is high, and cost of material is low, easy to make.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is Fig. 1 right view.
Fig. 3 is the enlarged drawing of closed slot in Fig. 2.
Accompanying drawing mark represents respectively：1- iron cores, 2- cast aluminiums sliver, 3- cast aluminiums ring, 4- fan blades, 5- balance columns, 6- closed slots,
7- high resistance coating, 8- rotating shafts.
Embodiment
A kind of cast-aluminum rotor of motor, it includes iron core 1, cast aluminium sliver 2, cast aluminium ring 3, and iron core is stacked shape by silicon steel sheet
Into, multiple closed slots 6 are symmetrically arranged with silicon steel sheet, cast aluminium sliver is passed through in closed slot, and cast aluminium ring is located at silicon steel sheet both sides,
The both ends of cast aluminium sliver and the integrated poured formation of cast aluminium ring, fan blade 4, balance columns 5, iron core are outward extended with the end face of cast aluminium ring
In be provided with rotating shaft 8.
High resistance coating 7 is provided between cast aluminium sliver and closed slot, high resistance coating composition is：Particle diameter is 1-4 μm
Epoxy powder 20-40wt%, particle diameter are 5-10 μm of alumina powder 60-80 wt%；The thickness range of described high resistance coating exists
Between 0.04 millimeter to 0.08 millimeter.
Epoxy is insulating materials, and aluminum oxide is conductive very low under normal temperature state.
The cast-aluminum rotor processing technology step of described motor includes：
Embodiment one：
1st, silicon steel sheet is stacked；
2nd, the epoxy powder 20wt% that particle diameter the is 1-4 μm wt% of alumina powder 80 for being 5-10 μm with particle diameter are mixed；
3rd, the epoxy powder and alumina powder of mixing are electrostatically sprayed into device to be sprayed in the closed slot of silicon steel sheet, the thickness of coating
In 0.04 millimeter；
4th, the silicon steel sheet after spraying is heated to 180 DEG C -200 DEG C, is incubated 15-20 minutes, is allowed to solidify, formed high resistance and apply
Layer；
5th, the silicon steel sheet after curing of coatings is put into cast-aluminum die, pours and outpour cast aluminium sliver, cast aluminium ring；
6th, rotating shaft and iron core compacting are connected.
Contact resistance between cast aluminium sliver and silicon steel sheet, it is 120 ohm-sq millimeters.The measuring method of contact resistance
It is to apply voltage U between rotating shaft and conducting ring, measures the electric current I in voltage circuit, calculate the surface area of each cast aluminium sliver
Sum S, contact resistance=U/ (IS).
Embodiment two：
1st, silicon steel sheet is stacked；
2nd, the epoxy powder 40wt% that particle diameter the is 1-4 μm wt% of alumina powder 60 for being 5-10 μm with particle diameter are mixed；
3rd, the epoxy powder and alumina powder of mixing are electrostatically sprayed into device to be sprayed in the closed slot of silicon steel sheet, the thickness of coating
In 0.08 millimeter；
4th, the silicon steel sheet after spraying is heated to 180 DEG C -200 DEG C, is incubated 15-20 minutes, is allowed to solidify, formed high resistance and apply
Layer；
5th, the silicon steel sheet after curing of coatings is put into cast-aluminum die, pours and outpour cast aluminium sliver, cast aluminium ring；
6th, rotating shaft and iron core compacting are connected.
Contact resistance between cast aluminium sliver and silicon steel sheet, it is 150K ohms every square centimeter.
Silicon steel sheet is cylindrical without machining in above-mentioned cast-aluminum rotor processing technology, can so reduce pulsation damage
Consumption and high-frequency loss, but the punching to silicon steel sheet requires higher, especially for air gap smaller motor, the inner circle of silicon steel sheet
（Rotating shaft is placed in one）High concentricity must be kept with cylindrical.
To reduce the bounce of rotor outer circle, the cylindrical of described silicon steel sheet carries out metalworking, and the cylindrical of silicon steel sheet leaves
0.25mm allowance, after the cylindrical metalworking of silicon steel sheet, it is processed by shot blasting, to remove the cylindrical burr of silicon steel sheet,
The conductiving point between silicon steel sheet is eliminated, to ensure that resistance does not reduce between silicon steel sheet, reduces pulsation loss and high-frequency loss.
Claims (3)
1. a kind of cast-aluminum rotor of motor, it include stacked silicon steel sheet group into iron core（1）, cast aluminium sliver（2）, cast aluminium ring
（3）, multiple closed slots are symmetrically arranged with silicon steel sheet（6）, cast aluminium sliver passed through in closed slot, and cast aluminium ring is located at silicon steel sheet two
Side, the both ends of cast aluminium sliver are connected with conducting ring, it is characterized in that, high resistance coating is provided between cast aluminium sliver and closed slot
（7）, high resistance coating, which forms, is：Particle diameter is 1-4 μm of epoxy powder 20-40wt%, and particle diameter is 5-10 μm of alumina powder 60-80
wt%；The thickness range of described high resistance coating is between 0.04 millimeter to 0.08 millimeter.
2. the cast-aluminum rotor of motor according to claim 1, its processing technology step includes：
First, silicon steel sheet is stacked；
2nd, the epoxy powder 20-40wt% that particle diameter the is 1-4 μm alumina powder 60-80 wt% for being 5-10 μm with particle diameter are mixed；
3rd, the epoxy powder and alumina powder of mixing are electrostatically sprayed into device to be sprayed in the closed slot of silicon steel sheet, the thickness of coating
Degree is between 0.04 millimeter to 0.08 millimeter；
4th, the silicon steel sheet after spraying is heated to 180 DEG C -200 DEG C, is incubated 15-20 minutes, is allowed to solidify, formed high resistance and apply
Layer；
5th, the silicon steel sheet after curing of coatings is put into cast-aluminum die, pours and outpour cast aluminium sliver, cast aluminium ring.
3. the cast-aluminum rotor of motor according to claim 2, its processing technology step also includes：
The cylindrical allowance for leaving 0.25mm of silicon steel sheet, after the cylindrical turning processing of silicon steel sheet, it is processed by shot blasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711035832.7A CN107645216A (en) | 2017-10-28 | 2017-10-28 | The cast-aluminum rotor and its processing technology of a kind of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711035832.7A CN107645216A (en) | 2017-10-28 | 2017-10-28 | The cast-aluminum rotor and its processing technology of a kind of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107645216A true CN107645216A (en) | 2018-01-30 |
Family
ID=61123743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711035832.7A Pending CN107645216A (en) | 2017-10-28 | 2017-10-28 | The cast-aluminum rotor and its processing technology of a kind of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107645216A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667236A (en) * | 2018-05-23 | 2018-10-16 | 湖州荣辉电机有限公司 | A kind of rotor production assembly technology |
| CN109004802A (en) * | 2018-09-14 | 2018-12-14 | 临安泰华机械设备有限公司 | A kind of rotor processing technique |
| CN115912817A (en) * | 2022-12-23 | 2023-04-04 | 佳木斯电机股份有限公司 | Novel method for reducing additional loss of motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050134137A1 (en) * | 2003-12-17 | 2005-06-23 | Sweo Edwin A. | Method for manufacturing squirrel cage rotor |
| CN201956854U (en) * | 2011-03-25 | 2011-08-31 | 华北电力大学 | Squirrel-cage asynchronous motor rotor punching sheet capable of avoiding rotor skewed slots |
| CN106787554A (en) * | 2017-02-24 | 2017-05-31 | 徐州大元电机有限公司 | A kind of high efficiency composition cage bar motor rotor and preparation method thereof |
-
2017
- 2017-10-28 CN CN201711035832.7A patent/CN107645216A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050134137A1 (en) * | 2003-12-17 | 2005-06-23 | Sweo Edwin A. | Method for manufacturing squirrel cage rotor |
| CN201956854U (en) * | 2011-03-25 | 2011-08-31 | 华北电力大学 | Squirrel-cage asynchronous motor rotor punching sheet capable of avoiding rotor skewed slots |
| CN106787554A (en) * | 2017-02-24 | 2017-05-31 | 徐州大元电机有限公司 | A kind of high efficiency composition cage bar motor rotor and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667236A (en) * | 2018-05-23 | 2018-10-16 | 湖州荣辉电机有限公司 | A kind of rotor production assembly technology |
| CN109004802A (en) * | 2018-09-14 | 2018-12-14 | 临安泰华机械设备有限公司 | A kind of rotor processing technique |
| CN109004802B (en) * | 2018-09-14 | 2020-02-07 | 临安泰华机械设备有限公司 | Rotor machining process |
| CN115912817A (en) * | 2022-12-23 | 2023-04-04 | 佳木斯电机股份有限公司 | Novel method for reducing additional loss of motor |
| CN115912817B (en) * | 2022-12-23 | 2023-09-26 | 佳木斯电机股份有限公司 | Method for reducing additional loss of motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107645216A (en) | The cast-aluminum rotor and its processing technology of a kind of motor | |
| CN205847029U (en) | A kind of squirrel-cage asynchronous motor rotor | |
| JP4466671B2 (en) | Induction machine | |
| JP2013135602A (en) | Laminated core and method for manufacturing the same | |
| CN2862477Y (en) | Transverse flux motor | |
| CN105118653A (en) | Manufacturing method for amorphous alloy core used for motor and transformer | |
| CN105048744A (en) | Cast copper rotor for variable frequency motor | |
| CN207459851U (en) | A kind of cast-aluminum rotor of motor | |
| CN103545994A (en) | Manufacturing method for low loss squirrel cage motor rotor | |
| CN107612164A (en) | The high-performance copper rotor asynchronous motor of frock and electro spindle the double skewed slots stator of stator core and stator core | |
| CN101527476A (en) | Brushless electric motor rotor | |
| FI110824B (en) | Rotor structure in asynchronous electric machine | |
| CN105047338B (en) | A kind of zinc oxide resistance sheet of high side flashover voltage | |
| CN107591916B (en) | Cast copper rotor of motor and processing technology thereof | |
| CN201374596Y (en) | Brushless motor rotor | |
| EP2528204B1 (en) | Solid squirrel-cage rotor for an induction machine and manufacturing method thereof | |
| CN207184183U (en) | DC low-speed motor and its large-scale ceiling fan | |
| CN105375737B (en) | One kind improves non-salient pole type internal rotor reluctance type magnetic coupling | |
| CN206490520U (en) | Rotor and motor | |
| TW201909523A (en) | High-speed asynchronous motor rotor structure and motor comprising same | |
| CN207490265U (en) | A kind of reinforcement type Hooked reverser with copper bush | |
| CN103066770A (en) | Audible noise elimination method of magnetic shoe used for direct-current motor | |
| CN202749928U (en) | Motor with inner cooling device arranged inside rotor shaft | |
| KR102136967B1 (en) | Motor using coil impregnated with silver nano particles | |
| CN207150277U (en) | Three-phase disc type solid rotor motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 225500 Xingjiang Road No. 35, modern science and Technology Industrial Park, Jiangyan District, Taizhou, Jiangsu Applicant after: Deli Motor Co.,Ltd. Address before: 225500 Xingjiang Road No. 35, modern science and Technology Industrial Park, Jiangyan District, Taizhou, Jiangsu Applicant before: TAIZHOU JIANGYAN DELI ELECTRIC MOTOR Co.,Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180130 |