CN103730987B - The high-frequency electric machines of superconducting fluid heat radiation, composite powder conductor wire coiling stator rotor - Google Patents
The high-frequency electric machines of superconducting fluid heat radiation, composite powder conductor wire coiling stator rotor Download PDFInfo
- Publication number
- CN103730987B CN103730987B CN201410018195.2A CN201410018195A CN103730987B CN 103730987 B CN103730987 B CN 103730987B CN 201410018195 A CN201410018195 A CN 201410018195A CN 103730987 B CN103730987 B CN 103730987B
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- superconducting fluid
- heat
- pipe
- 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
Abstract
A high-frequency electric machines for superconducting fluid heat radiation, composite powder conductor wire coiling stator rotor, it is made up of stators and rotators, and stator comprises shell, stator core and stator winding; Rotor comprises rotating shaft, rotor core and rotor windings; Be characterized in: its rotating shaft also outside rotor core two ends respectively fills a centrifugation blade, and the lateral surface of centrifugation blade is provided with air admission hole, and the periphery of centrifugation blade is provided with venthole; The wire of rotor windings embeds in the through hole of rotor core, and stretch out carry out bending outside rotor core both sides after make protrude end face toward the venthole of centrifugation blade; The cross section of the wire of stator winding and rotor windings is four-layer structure, be followed successively by insulating resin, outer heat pipe, composite conductive powder and inner heat-conductive pipe from outside to inside, and the superconducting fluid adding 2/3 volume in inner heat-conductive pipe is dispelled the heat.The invention solves the deficiency of existing motor heat dissipation and kelvin effect, provide that a kind of superconducting fluid is dispelled the heat, the high-frequency electric machines of composite powder conductor wire coiling stator rotor, have that good heat dissipation effect, conductance are high, long service life and the feature such as use is reliable.
Description
One, technical field
The present invention relates to a kind of motor, the high-frequency electric machines of especially a kind of superconducting fluid heat radiation, composite powder conductor wire coiling stator rotor.
Two, background technology
In normal operation, its electric machine casing surface temperature is generally high than ambient temperature about 20 DEG C, and maximum temperaturerise should higher than 70 DEG C for all kinds of Domestic single-phase motor.If occur after machine operation a few minutes that casing surface temperature play rises, and distributing tarry odour in machine and even smolder, is then motor overheating fault.The reason of motor overheating temperature rise, mainly contains motor sole mass problem; Motor is in overload operation state (drive failure cause motor load large) for a long time; Motor radiating condition is poor; Motor winding partial short-circuit etc.
Present motor burns than easier in the past: due to the development of insulation technology, the design of motor had both required increase is exerted oneself, and require again to reduce volume, make the thermal capacity of New-type electric machine more and more less, capability of overload is more and more weak; Again due to the raising of production automation degree, require motor often to operate in start frequently, brake, the various ways such as rotating and varying duty, electric motor protective device is had higher requirement.
There is kelvin effect and skin effect in wire conduction, namely in fact electric current is very little in wire inside, and current convergence is in the skim of adjacent conductors appearance.Result makes its effective resistance increase, and its loss power is also increased.When the electric current that frequency is very high passes through wire, the magnetic field that high-frequency current produces in wire induces maximum electromotive force in the central area of wire.Because the electromotive force of induction is in closed circuit generation induced current, maximum at the induced current at wire center.Because induced current is always in the original sense of current of reduction, it forces electric current to be only limited near wire outer surface.Like this, skin effect makes lead-type transmission line efficiency when high frequency very low, because when signal transmits along it, decays very large.So high-frequency electric machines more needs the resistance reducing skin effect, to improve conductance.
Three, summary of the invention
The object of the invention is the deficiency that will solve existing motor, provide that a kind of superconducting fluid is dispelled the heat, the high-frequency electric machines of composite powder conductor wire coiling stator rotor, make it have that good heat dissipation effect, conductance are high, long service life and the feature such as use is reliable.
The object of the invention is to adopt following scheme to realize: the high-frequency electric machines of a kind of superconducting fluid heat radiation, composite powder conductor wire coiling stator rotor, it is made up of stators and rotators, and described stator comprises shell, stator core and stator winding; Described rotor comprises fixes rotating shaft in the enclosure, rotor core and rotor windings by the support of bearing and bearing; Be characterized in: its rotating shaft also in the enclosure outside rotor core two ends respectively fills a centrifugation blade, the lateral surface core of described centrifugation blade is provided with the air admission hole of annular, the periphery of centrifugation blade is provided with multiple uniform venthole, and venthole is communicated with air admission hole; Have a ring through hole around the shaft in described rotor core, the wire of rotor windings embeds in this ring through hole, and stretch out carry out bending outside rotor core both sides after make protrude end face toward the venthole of centrifugation blade;
The left and right sides of above-mentioned shell have some apertures as louvre;
The cross section of the wire of said stator winding and rotor windings is four-layer structure, be followed successively by insulating resin, outer heat pipe, composite conductive powder and inner heat-conductive pipe from outside to inside, and in inner heat-conductive pipe, add the superconducting fluid of 1/3 volume, there is lead-out wire to be connected with composite conductive powder at the two ends of wire.
When electrical power, operating current and induced current are conducted electricity by the composite conductive powder last layer of stator winding and rotor windings, and the total surface area of composite conductive powder is very large, and electric current is evenly distributed at whole cross-sectional area of conductor, weaken kelvin effect thus, electrical efficiency is improved.
Superconducting fluid in stator winding and rotor windings is in winding and the evaporation of iron core adstante febre, heat is taken to the winding two ends outside iron core, when axis of rotation, cross-ventilation is produced in centrifugation blade, venthole blows stator winding and rotor windings end, like this heat at winding two ends is come out, then by the louvre on shell, the heat of motor internal is distributed by interior under the blowing of centrifugation blade outward.
The present invention adopts the beneficial effect of such scheme to be: 1) in stator winding and the in-built superconducting fluid of rotor windings, rotated by centrifugation blade and produce air flowing, make superconducting fluid be winding and iron core heat radiation, can effectively avoid motor overheating fault, its useful life is increased, and structure is simple; 2) on motor housing, be provided with louvre, can effectively the hot gas in motor be discharged; 3) stator winding and the in-built composite conductive powder of rotor windings, improve total surface area greatly, reduces the resistance of skin effect, improves the conductance of high-frequency electric machines.
Four, accompanying drawing explanation
Fig. 1 is that superconducting fluid of the present invention is dispelled the heat, the main cutaway view of the high-frequency electric machines of composite powder conductor wire coiling stator rotor;
Fig. 2 is that superconducting fluid of the present invention is dispelled the heat, the rotor structure stereogram of the high-frequency electric machines of composite powder conductor wire wound rotor;
Fig. 3 is the sectional view of the wire of stator winding and rotor windings in the present invention.
As follows to the label declaration in each width accompanying drawing:
1-rotating shaft; 2-bearing; The 3-support of bearing; 4-shell; 4a-louvre; 5-centrifugation blade; 5a-venthole; 5b-air admission hole; 6-rotor windings; 7-rotor core; 8-stator winding; 8a-insulating resin; The outer heat pipe of 8b-; 8c-composite conductive powder; 8d-inner heat-conductive pipe; 8e-superconducting fluid; 9-stator core.
Five, embodiment
Below in conjunction with accompanying drawing, superconducting fluid of the present invention is dispelled the heat, the embodiment of the high-frequency electric machines of composite powder conductor wire coiling stator rotor is described in detail.
As shown in Figure 1, be the structure chart of the high-frequency electric machines of superconducting fluid heat radiation of the present invention, composite powder conductor wire coiling stator rotor, it is made up of stators and rotators.Stator comprises shell 4, stator core 9 and stator winding 8, and rotor comprises the rotating shaft 1 be fixed on by the support of bearing 3 and bearing 2 in shell 4, rotor core 7 and rotor windings 6.
Rotating shaft 1 outside shell 4 internal rotor iron core 7 two ends respectively fills a centrifugation blade 5.As shown in Figure 2, the lateral surface core of centrifugation blade 5 is provided with the air admission hole 5b of annular, and the periphery of centrifugation blade 5 is provided with multiple uniform venthole 5a, and venthole 5a is communicated with air admission hole 5b.
1 have a collar aperture around the shaft in rotor core 7, the wire of rotor windings 6 embeds in this ring through hole, and stretch out carry out bending outside rotor core 7 both sides after make protrude end face toward the venthole 5a of centrifugation blade 5, as depicted in figs. 1 and 2.
Some apertures are had as louvre 4a in the left and right sides of shell 4.
As shown in Figure 3, the cross section of the wire of stator winding 8 and rotor windings 6 is four-layer structure, be followed successively by insulating resin 8a, outer heat pipe 8b, composite conductive powder 8c and inner heat-conductive pipe 8d from outside to inside, and in inner heat-conductive pipe 8d, add the superconducting fluid 8e of 2/3 volume, need not fill and be beneficial to evaporation; Lead-out wire is had to be connected with composite conductive powder at the two ends of wire, so that energising connects.
Outer heat pipe 8b and inner heat-conductive pipe 8d can adopt the metal tubes such as copper pipe, iron pipe, aluminum pipe, realizes the effect of conductive and heat-conductive.
The composite powder that composite conductive powder 8c can adopt graphite powder or graphite powder and copper, silver powder to synthesize, realizes the effect of conduction.When electrical power, operating current and induced current are conducted electricity by the composite conductive powder last layer of stator winding 8 and rotor windings 6, and the total surface area of composite conductive powder is very large, and electric current is evenly distributed at whole cross-sectional area of conductor, weaken kelvin effect thus, electrical efficiency is improved.
Superconducting fluid 8e can adopt liquid nitrogen.Superconducting fluid in stator winding 8 and rotor windings 6 is in winding and the evaporation of iron core adstante febre, heat is taken to the winding two ends outside iron core, when rotating shaft 1 is rotated, cross-ventilation is produced in centrifugation blade 5, venthole 5a blows stator winding 8 and rotor windings 6 end, like this heat at winding two ends is come out, then by the louvre on shell 4, the heat of motor internal is distributed by interior under the blowing of centrifugation blade 5 outward.
Claims (3)
1. a high-frequency electric machines for superconducting fluid heat radiation, composite powder conductor wire coiling stator rotor, it is made up of stators and rotators, stator comprises shell (9), stator core (9) and stator winding (8), rotor comprises the rotating shaft (1) be fixed on by the support of bearing (3) and bearing (2) in shell (4), rotor core (7) and rotor windings (6), it is characterized in that: its rotating shaft (1) also outside shell (4) internal rotor iron core (7) two ends is upper respectively fills a centrifugation blade (5), the lateral surface core of described centrifugation blade (5) is provided with the air admission hole (5b) of annular, the periphery of centrifugation blade (5) is provided with multiple uniform venthole (5a), venthole (5a) is communicated with air admission hole (5b), in described rotor core (7), (1) has a ring through hole around the shaft, the wire of rotor windings (6) embeds in this ring through hole, and stretch out carry out bending outside rotor core (7) both sides after make protrude end face toward the venthole (5a) of centrifugation blade (5),
The cross section of the wire of described stator winding (8) and rotor windings (6) is four-layer structure, be followed successively by insulating resin (8a), outer heat pipe (8b), composite conductive powder (8c) and inner heat-conductive pipe (8d) from outside to inside, and in inner heat-conductive pipe (8d), add the superconducting fluid (8e) of 2/3 volume; Lead-out wire is had to be connected with composite conductive powder at the two ends of wire, so that energising connects.
2. the high-frequency electric machines of superconducting fluid heat radiation according to claim 1, composite powder conductor wire coiling stator rotor, is characterized in that: the left and right sides of described shell (4) have some apertures as louvre (4a).
3. the high-frequency electric machines of superconducting fluid heat radiation according to claim 1, composite powder conductor wire coiling stator rotor, is characterized in that: described outer heat pipe (8b) and inner heat-conductive pipe (8d) adopt copper pipe, iron pipe, aluminum pipe; The composite powder that described composite conductive powder (8c) adopts graphite powder or graphite powder and copper, silver powder to synthesize; Described superconducting fluid (8e) adopts liquid nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410018195.2A CN103730987B (en) | 2014-01-15 | 2014-01-15 | The high-frequency electric machines of superconducting fluid heat radiation, composite powder conductor wire coiling stator rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410018195.2A CN103730987B (en) | 2014-01-15 | 2014-01-15 | The high-frequency electric machines of superconducting fluid heat radiation, composite powder conductor wire coiling stator rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103730987A CN103730987A (en) | 2014-04-16 |
| CN103730987B true CN103730987B (en) | 2015-12-30 |
Family
ID=50454958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410018195.2A Active CN103730987B (en) | 2014-01-15 | 2014-01-15 | The high-frequency electric machines of superconducting fluid heat radiation, composite powder conductor wire coiling stator rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103730987B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110718979A (en) * | 2019-09-25 | 2020-01-21 | 西安交通大学 | Motor rotor iron core heat dissipation structure based on gas-liquid phase change, motor and motor heat dissipation method |
| CN112382953B (en) * | 2020-12-21 | 2022-08-09 | 豫开集团有限公司 | Power distribution cabinet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1279833A (en) * | 1997-11-28 | 2001-01-10 | Abb股份有限公司 | High voltage rotating electric machine |
| US6515383B1 (en) * | 2000-11-06 | 2003-02-04 | Satcon Technology Corporation | Passive, phase-change, stator winding end-turn cooled electric machine |
| CN102983680A (en) * | 2012-11-28 | 2013-03-20 | 沈阳工业大学 | Air and water hybrid cooling high-speed permanent-magnet motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61206181A (en) * | 1985-03-08 | 1986-09-12 | 株式会社日立製作所 | Junction of superconductor |
| KR101042013B1 (en) * | 2009-03-09 | 2011-06-16 | 한국전기연구원 | Stator wateroil cooling structure for superconducting motors or generators |
-
2014
- 2014-01-15 CN CN201410018195.2A patent/CN103730987B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1279833A (en) * | 1997-11-28 | 2001-01-10 | Abb股份有限公司 | High voltage rotating electric machine |
| US6515383B1 (en) * | 2000-11-06 | 2003-02-04 | Satcon Technology Corporation | Passive, phase-change, stator winding end-turn cooled electric machine |
| CN102983680A (en) * | 2012-11-28 | 2013-03-20 | 沈阳工业大学 | Air and water hybrid cooling high-speed permanent-magnet motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103730987A (en) | 2014-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6035146B2 (en) | Superconducting generator and wind turbine equipped with superconducting generator | |
| CN108462318B (en) | Motor cooling structure, power motor and electric drive system | |
| US10148154B2 (en) | Rotary electric generator stator, rotary electric generator comprising said stator and wind turbine incorporating said rotary electric generator | |
| JP6312111B2 (en) | Rotating electric machine | |
| CN105305667A (en) | Electric machine | |
| KR20130079174A (en) | Electric machine with encapsulated end turns | |
| US20220190686A1 (en) | Electrical machine winding having improved colling | |
| CN104135114A (en) | High-voltage air and water cooling doubly-fed wind driven generator | |
| US3027474A (en) | Squirrel cage induction motor rotor | |
| CN103730987B (en) | The high-frequency electric machines of superconducting fluid heat radiation, composite powder conductor wire coiling stator rotor | |
| WO2017190658A1 (en) | Direct current motor | |
| RU2436220C1 (en) | Rotor of asynchronous electric machine | |
| TWI572125B (en) | Rotor heat dissipation structure of inner rotor motor | |
| CN103618394A (en) | Disc-type motor stator adopting heat pipe windings | |
| CN103078445A (en) | Efficient radiating motor | |
| CN113890223B (en) | Roller shutter door motor capable of guaranteeing stable operation | |
| CN204013082U (en) | High pressure air water cooling double-fed wind power generator | |
| CN203596271U (en) | Current transformer | |
| CN201937420U (en) | Speed-variable motor of high-speed train | |
| CN202059304U (en) | Scooter direct current brushless motor with large length-diameter ratio | |
| CN205283339U (en) | Drying -machine is blade fan for motor | |
| CN111509914A (en) | External rotation type motor structure | |
| JP2015501131A (en) | Rotating electric machines, especially double-fed asynchronous machines in the output range of 20 MVA to 500 MVA | |
| CN219622905U (en) | Direct current fan with high self-heat dissipation efficiency | |
| CN202424452U (en) | Generator rotor with cooling finned plug plates |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220817 Address after: 321300 Room 202, second floor, building 1, No. 8, Botang Road, Botang village, Zhiying Town, Yongkang City, Jinhua City, Zhejiang Province Patentee after: Yongkang shudakang Intelligent Technology Co.,Ltd. Address before: Room 547, No. 38, Xiangyuan Road, Gongshu District, Hangzhou City, Zhejiang Province, 310011 Hangzhou Ciyuan Technology Co., Ltd. Patentee before: Wang Baogen |
|
| TR01 | Transfer of patent right | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Baogen Document name: Notification of Eligibility for Procedures |
|
| DD01 | Delivery of document by public notice |