CN108023442A - A kind of water-cooling structure of motor - Google Patents
A kind of water-cooling structure of motor Download PDFInfo
- Publication number
- CN108023442A CN108023442A CN201711409451.0A CN201711409451A CN108023442A CN 108023442 A CN108023442 A CN 108023442A CN 201711409451 A CN201711409451 A CN 201711409451A CN 108023442 A CN108023442 A CN 108023442A
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- China
- Prior art keywords
- water pipe
- cooling
- cooling water
- engine base
- stator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a kind of water-cooling structure of motor, including cage type engine base, stator core and cooling water pipe, the stator core is made of stator teeth and stator yoke, the cylindrical of stator yoke has open slot, the cooling water pipe is by tabletting radial compaction, the cage type engine base, stator core, cast between cooling water pipe filler, the intake-outlet of the cooling water pipe is connected with disengaging water collector, the engraved structure that the cage type engine base is welded for evenly distributed axial muscle with circumferential muscle, cage type engine base is integrated with stator core assembly, axial ribs and the cylindrical close contact of stator yoke, gap is left between circumferential muscle and stator yoke are cylindrical, meet m=kn between opening slot number m and axial ribs number n（k≥1）Relation；Water-cooled machine stator provided by the invention can be widely applied to high-power, high torque density and the higher motor of high reliability request, be particularly suitable for major diameter motor.
Description
Technical field
The invention belongs to technical field of motors, and in particular to a kind of water-cooling structure of motor.
Background technology
Aqueous medium specific heat is big, and it is good to take away heat effect, so cooling system is small, does not increase noise substantially, water is in itself
Without explosion, poisonous equivalent risk and easily prepared, thus water-cooling structure in motor using relatively broad.
The outer air-cooled structure of traditional water is that cooling water channel is designed on electric machine stand, cooling water channel can be fabricated to it is spiral or
Zigzag type structure.Although the cooling structure motor, with higher heat conductivility, the structural disadvantages are also clearly：Water channel holds
Perishable, poor reliability, electrical machinery life is short, therefore its application is subject to larger limitation.
The outer cold seat of traditional water since fluid scouring can not solve the problems such as burn into of water channel gets rusty, and apply in recent years compared with
More rear of core poling cooling technologies again there are complex process, take the problems such as more motor internal space, solder joint and leakiness.
Although rear of core poling cooling technology solves the problems such as water channel corrosion, its reliability does not obtain fundamentally
To raising, this is because adding the site welding between substantial amounts of water pipe and water pipe, the risk of seal leakage in motor internal
Increase, and due to being limited by elbow radius and water collector arrangement space, the inner space of motor is also in a disguised form added, weight increases
Add.Reliability is not fundamentally improved with cooling performance, therefore its application is not also popularized.
The content of the invention
The shortcomings that present invention is brought for the above two type of cooling, there is provided a kind of motor water cooling structure, reduces cooling
The requirement of water quality, improves the heat dissipation performance of motor, adds motor reliability, extend electrical machinery life.
The technical solution adopted by the present invention to solve the technical problems is：A kind of water-cooling structure of motor, including cage type machine
Seat, stator core and the cooling water pipe being embedded between cage type engine base and stator core, the stator core is by stator tooth
Portion and stator yoke composition, the cylindrical of stator yoke have open slot, and the cooling water pipe is described by tabletting radial compaction
Cast between cage type engine base, stator core, cooling water pipe filler, the intake-outlet of the cooling water pipe is extended radially out along motor
End is connected with disengaging water collector, the hollow out knot that the cage type engine base is welded for evenly distributed axial muscle with circumferential muscle
Structure, cage type engine base are integrated with stator core assembly, axial ribs and the cylindrical close contact of stator yoke, circumferential muscle and stator yoke
Gap is left between cylindrical, meets m=kn between the slot number m and axial ribs number n that is open（k≥1）Relation.
A kind of water-cooling structure of motor, multigroup pipe dish that its cooling water pipe is formed by a stainless steel tube coiling are first
Tail is formed by connecting, and every group of pipe dish is connected by two Zigzag type bend pipe structures snakelike vertically side by side and formed.
A kind of water-cooling structure of motor, its cooling water pipe are positioned between circumferential muscle and stator core, per adjacent
Axial ribs between place one group of cooling water pipe, the quantity of cooling water pipe is equal with axial ribs.
The water-cooling structure of a kind of motor, it is characterised in that the cooling water pipe is stainless steel, titanium alloy or copper
The square tube or pipe of alloy, the cooling medium in pipe is water or oil.
A kind of water-cooling structure of motor, its filler are golden for high-termal conductivity, the low melting point of 150~400 DEG C of fusing point
Belong to compound.
A kind of water-cooling structure of motor, its tabletting are strip metal thin slice, the both ends of sheet metal respectively with phase
Adjacent axial ribs are welded as entirety.
A kind of water-cooling structure of motor, it, which passes in and out water collector and is circumferentially welded respectively with cooling water pipe intake-outlet, is
It is overall.
, radially there is height between the circumferential muscle and axial ribs of its cage type engine base in a kind of water-cooling structure of motor
Difference.
The present invention has the advantage that as follows with good effect：
Motor water cooling structure provided by the invention solves what cold scheme and rear of core poling cooling technology outside traditional water were brought
The problem of poor reliability, electrical machinery life is short, while ensure that higher heat conductivility, the requirement of quality of cooling water is reduced, is improved
The heat dissipation performance of motor, improves the reliability of cooling, extends electrical machinery life, and technique is simple.It can be widely applied to big
Power, high torque density, high reliability and the motor field higher to noise requirements, are particularly suitable for major diameter motor.
Brief description of the drawings
Fig. 1 is the agent structure schematic diagram of the present invention；
Fig. 2 is the partial enlarged view of part A in Fig. 1；
Cage type engine base circumferential direction muscle and interferric space enlarged diagram when Fig. 3 is Zigzag type bend pipe structure；
Fig. 4 is the structure diagram of Zigzag type cooling water pipe；
Fig. 5 is the structure diagram of rectangular disk tubular type cooling water pipe；
Fig. 6 is the motor stator three dimensional structure diagram using coiled cooling structure.
Each reference numeral is：1-cage type engine base, 1a-axial ribs, 1b-circumferential direction muscle, 2-stator core, 2a-stator tooth
Portion, 2b-stator yoke, 2c-open slot, 3-cooling water pipe, 4-filler, 5-tabletting, 6-disengaging water collector.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
By taking rectangular disk tubular type cooling structure as an example, referring to figs. 1 to shown in Fig. 6, a kind of water-cooling structure of motor of the invention,
Including cage type engine base 1, stator core 2 and the cooling water pipe 3 being embedded between cage type engine base 1 and stator core 2, described determines
Sub- iron core 2 is made of stator teeth 2a and stator yoke 2b, and the cylindrical of stator yoke 2b has open slot 2c（Such as dovetail slot）, use
Entirety is formed with cooling water pipe 3, engine base 1 after tin filling, the cooling water pipe 3 is by 5 radial compaction of tabletting, the cage type machine
Casting filler 4 between seat 1, stator core 2, cooling water pipe 3, the filler 4 are the high heat conduction of 150~400 DEG C of fusing point
Property, low-melting-point metal compound（Such as tin solder）, after 4 heating and melting of filler, cast in cage type engine base 1,2 and of stator core
Above-mentioned part curing to be overall after thing 4 to be filled cools down between cooling water pipe 3, the intake-outlet of the cooling water pipe 3 is along motor
Extend radially out end and be connected with disengaging water collector 6, wherein disengaging water collector 6 is respectively circumferentially with the weldering of 3 intake-outlet of cooling water pipe
Overall, the cooling water pipe 3 is the square tube or pipe of stainless steel, titanium alloy or copper alloy, the cooling medium in pipe for water or
Oil, such as 304,316,321, Cu, BFe10,3 intake-outlet of cooling water pipe extends radially out along motor, be positioned over circumferential muscle 1b with
Between stator core 2, one group of cooling water pipe 3, the total quantity and axial ribs of cooling water pipe 3 are placed between every adjacent axial ribs 1a
1a is equal, the engraved structure that the cage type engine base 1 is welded for evenly distributed axial muscle 1a with circumferential muscle 1b overlap joints, cage
1 internal diameter of shape engine base is integrated after finishing with the assembling of stator core 2, axial ribs 1a and the cylindrical close contacts of stator yoke 2b,
Gap is left between circumferential muscle 1b and stator yoke 2b are cylindrical, meets m=kn between open slot 2c numbers m and axial ribs 1a numbers n（k≥
1）Relation.
Further, multigroup pipe dish head and the tail that the cooling water pipe 3 is formed by a stainless steel tube coiling are formed by connecting, often
Group pipe dish is connected by two Zigzag type bend pipe structures snakelike vertically side by side to be formed, and 3 main body of cooling water pipe is joined using two string formations
Rectangular disk tubular structure（With reference to Fig. 3-2 and Fig. 4）, cooling water pipe 3 is radially compressed with tabletting 5（Cooling water pipe 3 is adjacent to fixed
Sub- 2 outer round surface of iron core）, it is overall that 3 intake-outlet of cooling water pipe, which extends radially out along motor and passes in and out the weldering of water collector 6,.
Further, radially there are difference in height between circumferential the muscle 1b and axial ribs 1a of the cage type engine base 1（It is axial
The internal diameter of muscle 1a<Circumferential muscle 1b internal diameters）；For 1 inner circle of cage type engine base after finishing, which should be than embedding cooling water pipe 3
Highly（Pipe corresponds to diameter, and square tube radially embeds height to be corresponding）High about 1~3mm；3 main body of cooling water pipe is snake vertically
During shape Zigzag type bend pipe structure, for 1 inner circle of cage type engine base after finishing, which should be than the height of embedding cooling water pipe 3（Circle
Pipe corresponds to diameter, and square tube radially embeds height to be corresponding）High about 1~3mm.
In this case filler 4 use for tin alloy solder, 200~240 °C are heated to melting, and water-cooled machine stator is revolved
Turn 3 position of cooling water pipe to be filled to level, the solder after thawing is cast between cage type engine base 1 and stator core 2
In gap, the radial clearance between packed height covering circumferential direction muscle 1b and water pipe, after cooling, tin alloy solder is by cage type engine base
1st, stator core 2 and this cooling water pipe 3 cure and are integrated, one by one adjustment rotation filling position, by cage type engine base 1 with it is all cold
But fill solder is used between water pipe 3.
The tabletting 5 is strip metal thin slice, for water pipe being fixed before filling, the both ends of sheet metal respectively with phase
Adjacent axial ribs 1a is welded as entirety, and corresponding 5 quantity of tabletting of every group of cooling water pipe 3 can carry out true according to the axial direction length of engine base 1
It is fixed.The yoke portion of the stator core 2 is cylindrical to be provided with 48（3 × 16,16 be 1a number of axial ribs）Dovetail slot（With reference to Fig. 2）.It is fixed
Transmission moment of torsion is fetched by zigzag weld between the axial ribs 1a of sub- iron core 2 and cage type engine base 1.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those skilled in the art should be covered in the change or replacement that the invention discloses in the range of, can readily occur in
Within the scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (8)
- A kind of 1. water-cooling structure of motor, it is characterised in that：Including cage type engine base（1）, stator core（2）And it is embedded in cage type Engine base（1）And stator core（2）Between cooling water pipe（3）, the stator core（2）By stator teeth（2a）And stator yoke Portion（2b）Composition, stator yoke（2b）Cylindrical there is open slot（2c）, the cooling water pipe（3）By tabletting（5）Radially press Tightly, the cage type engine base（1）, stator core（2）, cooling water pipe（3）Between cast filler（4）, the cooling water pipe（3） Intake-outlet extend radially out end along motor and be connected with disengaging water collector（6）, the cage type engine base（1）For equally distributed axis To muscle（1a）With circumferential muscle（1b）The engraved structure being welded, cage type engine base（1）With stator core（2）Assembling is integrated, axis To muscle（1a）With stator yoke（2b）Cylindrical close contact, circumferential muscle（1b）With stator yoke（2b）Gap is left between cylindrical, Open slot（2c）Number m and axial ribs（1a）Meet m=kn between number n（k≥1）Relation.
- A kind of 2. water-cooling structure of motor according to claim 1, it is characterised in that the cooling water pipe（3）By one Multigroup pipe dish head and the tail that root stainless steel tube coiling forms are formed by connecting, and every group of pipe dish is by two Zigzag types snakelike vertically side by side Bend pipe structure connects to be formed.
- A kind of 3. water-cooling structure of motor according to claim 1, it is characterised in that the cooling water pipe（3）Place In circumferential muscle（1b）With stator core（2）Between, per adjacent axial ribs（1a）Between place one group of cooling water pipe（3）, cooling Water pipe（3）Quantity and axial ribs（1a）It is equal.
- A kind of 4. water-cooling structure of motor according to claim 1, it is characterised in that the cooling water pipe（3）For not Become rusty the square tube or pipe of steel, titanium alloy or copper alloy, the cooling medium in pipe is water or oil.
- A kind of 5. water-cooling structure of motor according to claim 1, it is characterised in that the filler（4）For fusing point 150~400 DEG C of high-termal conductivity, low-melting-point metal compound.
- A kind of 6. water-cooling structure of motor according to claim 1, it is characterised in that the tabletting（5）For strip gold Belong to thin slice, the both ends of sheet metal respectively with adjacent axial ribs（1a）It is welded as entirety.
- A kind of 7. water-cooling structure of motor according to claim 1, it is characterised in that the disengaging water collector（6）Edge It is circumferential respectively with cooling water pipe（3）Intake-outlet weldering is overall.
- A kind of 8. water-cooling structure of motor according to claim 1, it is characterised in that the cage type engine base（1）Week To muscle（1b）With axial ribs（1a）Between radially there are difference in height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711409451.0A CN108023442B (en) | 2017-12-22 | 2017-12-22 | Water cooling structure of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711409451.0A CN108023442B (en) | 2017-12-22 | 2017-12-22 | Water cooling structure of motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108023442A true CN108023442A (en) | 2018-05-11 |
| CN108023442B CN108023442B (en) | 2020-01-07 |
Family
ID=62074623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711409451.0A Active CN108023442B (en) | 2017-12-22 | 2017-12-22 | Water cooling structure of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108023442B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494901A (en) * | 2018-12-18 | 2019-03-19 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of trough inner water cool electric machine stator |
| CN110336404A (en) * | 2019-06-26 | 2019-10-15 | 苏州汇川技术有限公司 | Driving motor and new-energy automobile |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07213019A (en) * | 1994-01-17 | 1995-08-11 | Hitachi Ltd | Liquid cooling structure of motor |
| CN1220037A (en) * | 1996-05-29 | 1999-06-16 | Abb阿西亚布朗·勃法瑞公司 | Rotary electric machine with radial cooling |
| CN101546941A (en) * | 2009-03-31 | 2009-09-30 | 中国船舶重工集团公司第七一二研究所 | Evaporative cooling propulsion motor |
| CN101562371A (en) * | 2008-04-18 | 2009-10-21 | Abb有限公司 | Cooling element for electrical machine |
| CN102386695A (en) * | 2010-08-30 | 2012-03-21 | 通用电气公司 | Segmented stator assembly |
| US20140183988A1 (en) * | 2012-12-31 | 2014-07-03 | Teco-Westinghouse Motor Company | Assemblies For Cooling Electric Machines |
| CN105284032A (en) * | 2013-05-14 | 2016-01-27 | 西门子公司 | Electric motor |
| CN107394963A (en) * | 2017-08-02 | 2017-11-24 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of motor with immersion type liquid cooled stator armature |
-
2017
- 2017-12-22 CN CN201711409451.0A patent/CN108023442B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07213019A (en) * | 1994-01-17 | 1995-08-11 | Hitachi Ltd | Liquid cooling structure of motor |
| CN1220037A (en) * | 1996-05-29 | 1999-06-16 | Abb阿西亚布朗·勃法瑞公司 | Rotary electric machine with radial cooling |
| CN101562371A (en) * | 2008-04-18 | 2009-10-21 | Abb有限公司 | Cooling element for electrical machine |
| CN101546941A (en) * | 2009-03-31 | 2009-09-30 | 中国船舶重工集团公司第七一二研究所 | Evaporative cooling propulsion motor |
| CN102386695A (en) * | 2010-08-30 | 2012-03-21 | 通用电气公司 | Segmented stator assembly |
| US20140183988A1 (en) * | 2012-12-31 | 2014-07-03 | Teco-Westinghouse Motor Company | Assemblies For Cooling Electric Machines |
| CN105284032A (en) * | 2013-05-14 | 2016-01-27 | 西门子公司 | Electric motor |
| CN107394963A (en) * | 2017-08-02 | 2017-11-24 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of motor with immersion type liquid cooled stator armature |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494901A (en) * | 2018-12-18 | 2019-03-19 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of trough inner water cool electric machine stator |
| CN109494901B (en) * | 2018-12-18 | 2020-07-31 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | In-groove water-cooled motor stator |
| CN110336404A (en) * | 2019-06-26 | 2019-10-15 | 苏州汇川技术有限公司 | Driving motor and new-energy automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108023442B (en) | 2020-01-07 |
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