CN201374628Y - Three-phase water-cooling permanent magnet synchronous motor - Google Patents
Three-phase water-cooling permanent magnet synchronous motor Download PDFInfo
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- CN201374628Y CN201374628Y CN200920008782U CN200920008782U CN201374628Y CN 201374628 Y CN201374628 Y CN 201374628Y CN 200920008782 U CN200920008782 U CN 200920008782U CN 200920008782 U CN200920008782 U CN 200920008782U CN 201374628 Y CN201374628 Y CN 201374628Y
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- Motor Or Generator Cooling System (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model relates to a three-phase water-cooling permanent magnet synchronous motor comprising a base, a permanent magnet rotor, an end cover, an outlet box, a bearing inner cover and a bearing, wherein, the base comprises a water-cooling housing and a stator winding, and the water-cooling housing is made up of a housing outer wall and a housing inner wall. The utility model is characterized in that screw-type grooves are formed on the surface of the housing inner wall, screw-type element rests are formed among the grooves and combined with the housing outer wall to form a spiral water tank, permanent magnets of the permanent magnet rotor adopt arc-shaped permanent magnets with circular arc-shaped cross sections, the arc-shaped permanent magnets on the circumference of the permanent magnet rotor are fixed and stuck at equidistance on the surface of a rotor core, the arc-shaped permanent magnets are separated from each other by insulating partition boards, two ends of each arc-shaped permanent magnet are fixed with insulating baffles, and the exterior of the permanent magnet rotor is sheathed with an insulating jacket. The utility model has the advantages of uniform heat dissipation of the housing, high mechanical strength of the housing, less leakage coefficient of the permanent magnets, increased utilization rate of the permanent magnets, increased air-gap energy storage, reduced copper loss and easy wiring.
Description
Technical field:
The utility model relates to a kind of three-phase water-cooling permanent magnet synchronous motor.
Background technology:
Present existing water-cooling motor cabinet is made up of casing outer wall and casing inner wall, it between casing outer wall and casing inner wall cavity, on the casing outer wall, be provided with water inlet and delivery port, the water inlet of one end, one brings out water, do not arrange orderly water channel in the cavity, it is different to occur the stagnant water (certain position water does not flow) or the flow velocity of each position water in the water flow process easily, causes the local heat radiation of motor bad.Cavity casing mechanical strength is bad, is applicable to the motor below several kilowatts, is inapplicable for the motor more than tens kilowatts.
The p-m rotor of at present existing motor: a kind of is embedded, and promptly permanent magnet is embedded in the rotor punching groove.Another kind is a surface-mount type, and promptly permanent magnet thick middle both sides are thin, and bonding or screw is at rotor surface.For the built-in permanent magnetic body, permanent magnet all is enclosed in the rotor punching, and this moment, the utilance of permanent magnet was not high because the part that permanent magnet has is in the magnet short-cut path state, and the magnetic leakage factor of permanent magnet is bigger.Can only be applicable to the motor below several kilowatts.For moment of inertia is big, rotating speed is higher, capacity is at the motor more than tens kilowatts, this structure is inapplicable.For the surface-mount type permanent magnet, because not protection, anti-oxidation performance is poor, mechanical strength is bad.This structure is applicable to the motor below several kilowatts.For moment of inertia is big, rotating speed is higher, capacity is at the motor more than tens kilowatts, this structure is inapplicable.
Adopt rectangular channel for the larger capacity motor at present, hard winding rule.This structure tooth portion magnetic circuit is inhomogeneous, and the rectangular conductor kelvin effect is serious, and copper loss increases, and winding overhang is bigger, the wiring difficulty.
Summary of the invention:
The purpose of this utility model provide the heat radiation of a kind of casing evenly, good cooling results, mechanical strength height, volume magnetic leakage factor little, permanent magnet little, permanent magnet utilance height, efficient height, power density is big, overload capacity is strong, reliable, speed governing convenient, easily wiring is applicable to the three-phase water-cooling permanent magnet synchronous motor in the various relevant devices of the drive system that can be widely used in motor vehicle more than tens kilowatts and industrial and mining enterprises.
The purpose of this utility model is realized by following mode:
The utility model comprises support, p-m rotor, end cap, outlet box, internal bearing cover, bearing, wherein support comprises casing and stator winding, casing is made up of casing outer wall and casing inner wall, it is characterized in that: make spiral type groove along the casing inner wall surface, form the spiral type convex tendon between groove, after the casing outer wall is sleeved on the casing inner wall, its inner surface contacts with the spiral type convex tendon, form the spiral tank, it is the arc-shaped permanent magnet of arc surface that the permanent magnet of p-m rotor adopts the cross section, the arc-shaped permanent magnet of same size is fixed equally spacedly by polarity on the circumference of p-m rotor and is bonded in the rotor core surface, arc-shaped permanent magnet separates with insulating barrier each other, the two ends of arc-shaped permanent magnet are fixed with insulation barrier, are surrounded by an insulating sleeve at the p-m rotor overcoat.
Stator winding adopts mush winding.
The utility model has the advantages that: because the spiral type groove structure is adopted on the casing inner wall surface, there are not stagnant water or flow velocity non-uniform phenomenon, realized the casing Homogeneouslly-radiating, spiral type convex tendon and casing inner wall are processed into one simultaneously, have strengthened the mechanical strength of casing; The permanent magnet of p-m rotor adopts arc-shaped permanent magnet, reduced permanent magnet magnetic leakage factor, improved the permanent magnet utilance, increased the air gap energy storage; Stator winding adopts mush winding, and can realize stranded conductor and, reduce copper loss around rule, and wiring easily.
The utility model motor has better heat radiating effect and very wide efficacious workaround, is applicable to the motor of manufacturing more than tens kilowatts.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model support;
Fig. 3 is the structural representation of the utility model stator punching;
Fig. 4 is the structural representation of the utility model water-cooled casing;
Fig. 5 is the structural representation of the utility model p-m rotor;
Fig. 6 is the structural representation of the utility model p-m rotor profile;
Fig. 7 is the structural representation of the utility model rotor core;
Fig. 8 is the structural representation of the K of the utility model rotor core to figure
Embodiment:
With reference to accompanying drawing, the utility model comprises support 1, p-m rotor 2, end cap 3, outlet box 4, internal bearing cover 5, bearing 6, wherein support 1 comprises water-cooled casing 9 and stator winding 11, water-cooled casing 9 is made up of casing outer wall 16 and casing inner wall 17, and the coaxial resolver 7 that is provided with becomes back cover 8 with revolving on the axle of p-m rotor 2.In order to increase the intensity of water-cooled casing, improve the radiating effect of casing, we adopt the helicla flute water flow structure, promptly make spiral type groove 19 along casing inner wall 17 surfaces, 19 of grooves form spiral type convex tendon 18, after casing outer wall 16 is sleeved on the casing inner wall 17, its inner surface contacts with spiral type convex tendon 18, the cross section of spiral type groove 19 can be rectangle also can be trapezoidal, this structure is by casing outer wall 16, casing inner wall 17, spiral type convex tendon 18, spiral type groove 19 is connected to form the helicla flute water flow structure, the flow direction of water is to be flowed in the groove of regulation by water inlet 15, advances along the groove spiral, is flowed out by delivery port 20, there are not stagnant water or flow velocity non-uniform phenomenon, therefore good heat dissipation effect, and strengthened the intensity of casing greatly, this helicla flute water flow structure are applicable to various stator water-cooling system.In order to improve the utilance of permanent magnet, reduce the magnetic leakage factor of permanent magnet, increase the air gap energy storage, it is the arc-shaped permanent magnet of arc surface that the permanent magnet of p-m rotor adopts the cross section, press the different number of poles of motor with arc-shaped permanent magnet 23 five equilibriums, press the polarity orientation fixed bonding on rotor core 25 surfaces, arc-shaped permanent magnet 23 along the circumferential direction separates with insulating barrier 24 each other, the inner arc of arc-shaped permanent magnet 23 is identical with rotor core 25 outer arcs, arc-shaped permanent magnet 23 specification same thickness are the same, arc-shaped permanent magnet 23 outer arcs that so just guaranteed to be adhesively fixed on rotor core 25 surfaces are on same circumference, and arc-shaped permanent magnet 23 two ends vertically are fixing with insulation barrier 21.In order to prevent the oxidation of arc-shaped permanent magnet 23, and increase mechanical strength, improve motor speed, the outer arc of p-m rotor is with the colligation of high-strength insulating material binding strap, and hot setting forms insulating sleeve 22, makes p-m rotor 2 become entity.This construction machine intensity height, arc-shaped permanent magnet 23 not oxidations.This structure is applicable in the magneto of the various rotating speeds of various capacity.The magnetic leakage factor of this structure is 10%-20%, and the magnetic leakage factor of built-in permanent magnetic body is 50%-60%.Rotor core 25 is laminated and is formed by rotating shaft 26, rotor sleeve 28, rotor punching 27, rotor punching 27 is formed by punching silicon-steel, on rotor punching 27, be provided with arc-shaped permanent magnet positioning bar 29 and arc-shaped permanent magnet groove 30, thereby guarantee the manufacturability that arc-shaped permanent magnet groove 30 is bonding and the accuracy of bonding location.
The flute profile of stator punching 10 adopts half opening, parallel teeth 13, flat flute profile 14.This flute profile magnetic circuit flows to, and slot space is big, be easy to rule, and slot wedge seals firmly.
Stator winding 11 adopts mush windings, and stranded conductor and around rule adopts the easy integer in mush winding rule end, and the end is shorter, and lead-out wire 12 convenience reduce the entire length of motor.Stranded conductor is also less around the kelvin effect of rule lead, thereby has reduced copper loss.
Above structure is applicable to that number of pole-pairs is the motor of various numbers of pole-pairs such as 2,4,6,8, is suitable in the three-phase water-cooling permanent magnet synchronous motor of various rotating speeds, various power, various voltages.
We have have successively designed and manufactured the three-phase water-cooling permanent magnet synchronous motor that power is different voltages such as 20Kw, 40Kw, 60Kw, 80Kw, 100Kw, 130Kw, 165Kw, 200Kw, 230Kw, 270Kw, 330Kw and rotating speed according to above electric machine structure, and wherein: 60Kw, 130Kw are electronic environmental sanitation car and electric bus design.
The power bracket of three-phase water-cooling permanent magnet synchronous motor of the present utility model tens kilowatts to hundreds of kilowatt, rotating speed forwards 10,000 commentaries on classics to from the per minute hundreds of, voltage from tens volts to several hectovolts, electric current is pacified to hundreds of from tens and is pacified.The power density ratio of motor is 1～1.5, and electric efficiency is not less than 95%, and the overload capacity of motor is 2～3 times.Motor is a continuous duty, and the class of insulation is 2 kinds of F level, H levels.Motor has better heat radiating effect and very wide efficacious workaround.
Claims (5)
1, a kind of three-phase water-cooling permanent magnet synchronous motor comprises support, p-m rotor, end cap, outlet box, internal bearing cover, bearing, wherein support comprises water-cooled casing and stator winding, the water-cooled casing is made up of casing outer wall and casing inner wall, it is characterized in that: make spiral type groove along the casing inner wall surface, form the spiral type convex tendon between groove, after the casing outer wall is sleeved on the casing inner wall, its inner surface contacts with the spiral type convex tendon, form the spiral tank, it is the arc-shaped permanent magnet of arc surface that the permanent magnet of p-m rotor adopts the cross section, the arc-shaped permanent magnet of same size is fixed equally spacedly by polarity on the circumference of p-m rotor and is bonded in the rotor core surface, arc-shaped permanent magnet separates with insulating barrier each other, the two ends of arc-shaped permanent magnet are fixed with insulation barrier, are surrounded by an insulating sleeve outside p-m rotor.
2, three-phase water-cooling permanent magnet synchronous motor according to claim 1 is characterized in that: the cross section of helical groove is a rectangle or trapezoidal.
3, three-phase water-cooling permanent magnet synchronous motor according to claim 1 is characterized in that: the flute profile of stator punching adopts half opening, parallel teeth, flat grooved.
4, three-phase water-cooling permanent magnet synchronous motor according to claim 1 is characterized in that: stator winding adopts mush winding.
5, three-phase water-cooling permanent magnet synchronous motor according to claim 1 is characterized in that: be provided with arc-shaped permanent magnet positioning bar and arc-shaped permanent magnet groove on rotor punching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920008782U CN201374628Y (en) | 2009-03-19 | 2009-03-19 | Three-phase water-cooling permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920008782U CN201374628Y (en) | 2009-03-19 | 2009-03-19 | Three-phase water-cooling permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201374628Y true CN201374628Y (en) | 2009-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920008782U Expired - Fee Related CN201374628Y (en) | 2009-03-19 | 2009-03-19 | Three-phase water-cooling permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201374628Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600945A (en) * | 2013-10-31 | 2015-05-06 | 北京精密机电控制设备研究所 | High-specific-power and wide-speed-regulation servo motor |
| CN110492702A (en) * | 2019-08-16 | 2019-11-22 | 江西森阳科技股份有限公司 | A kind of convex type p-m rotor process equipment of rare-earth permanent-magnet synchronous motor |
| CN111384798A (en) * | 2018-12-26 | 2020-07-07 | 本田技研工业株式会社 | Rotating electrical machine |
-
2009
- 2009-03-19 CN CN200920008782U patent/CN201374628Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600945A (en) * | 2013-10-31 | 2015-05-06 | 北京精密机电控制设备研究所 | High-specific-power and wide-speed-regulation servo motor |
| CN111384798A (en) * | 2018-12-26 | 2020-07-07 | 本田技研工业株式会社 | Rotating electrical machine |
| CN110492702A (en) * | 2019-08-16 | 2019-11-22 | 江西森阳科技股份有限公司 | A kind of convex type p-m rotor process equipment of rare-earth permanent-magnet synchronous motor |
| CN110492702B (en) * | 2019-08-16 | 2024-04-09 | 江西森阳科技股份有限公司 | Protruding permanent magnet rotor processing equipment of rare earth permanent magnet synchronous motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20180319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |