CN102158043B - Liquid-cooled flat linear permanent magnet synchronous motor - Google Patents
Liquid-cooled flat linear permanent magnet synchronous motor Download PDFInfo
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- CN102158043B CN102158043B CN 201110129321 CN201110129321A CN102158043B CN 102158043 B CN102158043 B CN 102158043B CN 201110129321 CN201110129321 CN 201110129321 CN 201110129321 A CN201110129321 A CN 201110129321A CN 102158043 B CN102158043 B CN 102158043B
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- cooling
- permanent magnet
- synchronous motor
- magnet synchronous
- water inlet
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 42
- 238000001816 cooling Methods 0.000 claims abstract description 87
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims description 40
- 239000000498 cooling water Substances 0.000 claims description 19
- 238000004804 winding Methods 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000003475 lamination Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 239000002131 composite material Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to a liquid-cooled flat linear permanent magnet synchronous motor, which belongs to the technical field of motors and solves the problems of poor cooling effects and great temperature difference between the front end and rear end of the conventional liquid-cooled flat linear motor. A cooling pipe in the permanent magnet synchronous motor provided by the invention consists of a water inlet pipe and a water outlet pipe, wherein the water inlet pipe consists of a plurality of parallel cooling sections and a plurality of bent connecting sections; every two adjacent cooling sections are communicated by the connecting sections; the water outlet pipe consists of a plurality of parallel cooling sections and a plurality of bent connecting sections; every two adjacent cooling sections are communicated by the connecting sections; the cooling sections of the water inlet pipe and the cooling sections of the water outlet pipe are arranged alternately; at the tail end of the primary part of the motor, the water inlet pipe and the water outlet pipe are connected together to form a passage; and a water outlet of the water outlet pipe and a water inlet of the water inlet pipe are positioned at the front end of the primary part of the motor. The liquid-cooled flat linear permanent magnet synchronous motor effectively reduces the temperature difference between the front and rear ends of the motor.
Description
Technical field
The present invention relates to the plate linear permanent magnet synchronous motor of a kind of liquid cools, belong to technical field of motors.
Background technology
For the cooling capacity that strengthens motor, pushing force density and the reliability that improves motor; Motor often adopts liquid cools modes such as water-cooled or oil cooling, according to the difference of liquid cools pipeline position, and the branch of cooling of the organic again package of liquid cools road and the cooling of inner winding pipeline; The cooling of casing pipeline need form the water route in interior; So the volume of motor is big, complex structure, and the thermal resistance between iron core and casing is big, and the cooling effect of motor is poor; For the inner winding pipeline type of cooling, can directly cool off winding, good cooling results, but because cooling line has occupied space, winding place, therefore, the resistance of winding is big, loss is many, has reduced efficiency of motor.
In order further to improve cooling effect, can embed liquid cooling tube in the groove at the elementary rear of core side fluting of linear electric motors, the layout shape of said cooling water pipe is as shown in Figure 7.The advantage of this arrangement be simple in structure, cost is low, and be easy to processing.But the shortcoming of this kind cooling structure is that cooling effect is poor, and the front end of motor and rear end temperature differ greatly, and cooling fluid entrance side temperature is low, and the outlet side temperature is high, thereby has influenced the output of motor, has reduced the reliability of winding.
Summary of the invention
In order to solve the big problem of the cooling effect temperature difference poor, the motor front-end and back-end of existing flat plate type linear motor, the present invention proposes the plate linear permanent magnet synchronous motor of a kind of liquid cools.
The plate linear permanent magnet synchronous motor of liquid cools of the present invention is made up of elementary, secondary and air gap; Secondary permanent magnet and the yoke of comprising; Elementary armature core, armature winding and the cooling water pipe of comprising is characterized in that said armature core is a cuboid; Along horizontal lamination; Said armature core on the face of air gap, along laterally having a plurality of rectangular channels that are parallel to each other, armature winding embeds in said rectangular channel; The face of the air gap dorsad of said armature core is rear of core, and along laterally having the cooling bath that even number is parallel to each other, the cross section of said cooling bath is the circle that has opening at said rear of core; Cooling water pipe is made up of water inlet pipe and outlet pipe, and said water inlet pipe is made up of the linkage section of a plurality of cooling sections that are parallel to each other and a plurality of bendings, and two adjacent cooling sections are connected through linkage section; Said outlet pipe is made up of the linkage section of a plurality of cooling sections that are parallel to each other and a plurality of bendings; Two adjacent cooling sections are connected through linkage section; Each cooling section of said water inlet pipe is embedded in the cooling bath; Each cooling section of said outlet pipe is embedded in the cooling bath, and embedded water pipe, the embedded water pipe of emitting of another cooling bath put into of a cooling bath in two adjacent arbitrarily cooling baths, and promptly the cooling section of the cooling section of water inlet pipe and outlet pipe alternately; At the tail end of electric motor primary, water inlet pipe and outlet pipe are joined together to form path; The delivery port of said outlet pipe and the water inlet of water inlet pipe are positioned at the head end of said electric motor primary.
In the plate linear permanent magnet synchronous motor of liquid cools of the present invention, said cooling water pipe can adopt metal material to make, and also can adopt the nonmetallic materials of good heat conductivity to make.
In the plate linear permanent magnet synchronous motor of liquid cools of the present invention, the A/F d2 of the circular cross section that has opening of said cooling bath is greater than 0.4 times of this circular cross-section diameter d 1 and less than said diameter d 1.
In the plate linear permanent magnet synchronous motor of liquid cools of the present invention, the rear of core of said armature core can also be provided with a plurality of cotter ways that are parallel to each other, and said cotter way and cooling bath parallel.Said cotter way is embedded in and is used for fixing alignment pin unshakable in one's determination.In order to make said cotter way not influence heat dispersion, between every adjacent two cotter ways, two cooling baths are arranged, respectively a water inlet pipe and an outlet pipe in said two cooling baths.
In the plate linear permanent magnet synchronous motor of liquid cools of the present invention; Said secondary permanent magnet can be adopted as slab construction; Be shaped as parallelogram, its minor face is parallel with the direction of motion, and the angle between its long limit and the direction of motion is between 87 °～90 °.
In the plate linear permanent magnet synchronous motor of liquid cools of the present invention; Every utmost point permanent magnet is along laterally being divided into two permanent magnets; Every permanent magnet shape is parallelogram, and shape is identical, and the minor face of every permanent magnet is parallel with the direction of motion; Said two blocks of permanent magnet mirror images symmetry is fixing, and the long limit angulation of said two permanent magnets is between 174 °～180 °.
The cooling device of the plate linear permanent magnet synchronous motor of liquid cools of the present invention is arranged in the elementary yoke unshakable in one's determination of linear electric motors; The arrangement mode of said cooling water pipe is different fully with the arrangement mode of existing similar cooling water pipe, has overcome the technological prejudice of this area, adopts water inlet pipe and outlet pipe mode alternately; Cooling capacity and pushing force density have not only been improved; Also reduce the front end of motor and the temperature difference of rear end effectively, the local temperature of armature core each several part is tended to balance, reduced the thermal resistance between winding and iron core; Also reached and reduced the winding copper loss, the technique effect of raising electric efficiency.
Description of drawings
Fig. 1 is the structural representation of the plate linear permanent magnet synchronous motor of this embodiment one described liquid cools.Fig. 2 is the I-I profile of Fig. 1.Fig. 3 is the structural representation of the plate linear permanent magnet synchronous motor of embodiment four described liquid cools.Fig. 4 is the structural representation of embodiment five and the plate linear permanent magnet synchronous motor of six described a kind of liquid cools.The secondary structure sketch map of the plate linear permanent magnet synchronous motor of Fig. 5 embodiment seven described liquid cools.Fig. 6 is the secondary structure sketch map of the plate linear permanent magnet synchronous motor of embodiment eight described liquid cools.Fig. 7 is the arrangement sketch map of the cooling water pipe of the existing plate linear permanent magnet synchronous motor of described liquid cools.
Embodiment
Embodiment one, referring to Fig. 1,2 the explanation these execution modes.The plate linear permanent magnet synchronous motor of the described liquid cools of this execution mode is made up of elementary, secondary and air gap; Secondary permanent magnet 6 and the yoke 5 of comprising; Elementary armature core 1, armature winding 2 and the cooling water pipe 3 of comprising, armature core 1 is a cuboid, along horizontal lamination, said armature core 1 on the face of air gap, along laterally having a plurality of rectangular channels that are parallel to each other, armature winding 2 embeds in said rectangular channel; The face of the air gap dorsad of said armature core 1 is rear of core, and along laterally having the cooling bath 4 that even number is parallel to each other, the cross section of said cooling bath 4 is the circle that has opening at said rear of core; Cooling water pipe 3 is made up of water inlet pipe and outlet pipe, and said water inlet pipe is made up of the linkage section of a plurality of cooling sections that are parallel to each other and a plurality of bendings, and two adjacent cooling sections are connected through linkage section; Said outlet pipe is made up of the linkage section of a plurality of cooling sections that are parallel to each other and a plurality of bendings; Two adjacent cooling sections are connected through linkage section; Each cooling section of said water inlet pipe is embedded in the cooling bath 4; Each cooling section of said outlet pipe is embedded in the cooling bath 4, and a cooling bath 4 embedded water pipe, another cooling bath 4 embedded water pipes of emitting put in two adjacent arbitrarily cooling baths 4, and promptly the cooling section of the cooling section of water inlet pipe and outlet pipe alternately; At the tail end of electric motor primary, water inlet pipe and outlet pipe are joined together to form path; The delivery port of said outlet pipe and the water inlet of water inlet pipe are positioned at the head end of said electric motor primary.
The cooling device of the plate linear permanent magnet synchronous motor of the described liquid cools of this execution mode is arranged in the elementary yoke unshakable in one's determination of linear electric motors; The arrangement mode of said cooling water pipe is different fully with the arrangement mode of existing similar cooling water pipe, has overcome the technological prejudice of this area, adopts water inlet pipe and outlet pipe mode alternately; Cooling capacity and pushing force density have not only been improved; Also reduce the front end of motor and the temperature difference of rear end effectively, the local temperature of armature core each several part is tended to balance, reduced the thermal resistance between winding and iron core; Also reached and reduced the winding copper loss, the technique effect of raising electric efficiency.
The difference of embodiment two, this execution mode and the plate linear permanent magnet synchronous motor of embodiment one described liquid cools is that said cooling water pipe 3 is made by metal material.
Cooling water pipe 3 in this execution mode is a metal material, and the good heat conductivity of said metal material is beneficial to heat exchange, can effectively increase cooling effect.
Cooling water pipe 3 in this execution mode can also adopt the nonmetallic composite of high thermal conductivity to constitute, and said high thermal conductivity nonmetallic composite is meant the nonmetallic composite that thermal conductivity is suitable with metal material.The good heat conductivity of said high heat conduction nonmetallic composite is beneficial to heat exchange, and has light weight, is prone to moulding advantage.
The difference of embodiment three, this execution mode and the plate linear permanent magnet synchronous motor of embodiment one described liquid cools is, the A/F d2 of the circular cross section that has opening of said cooling bath 4 is greater than 0.4 times of this circular cross-section diameter d 1 and less than said diameter d 1.
The optimum value of the described A/F d2 of this execution mode is 0.4d1-0.6d1.
The structure of the described cooling bath 4 of this execution mode has increased the contact area of cooling water pipe and cooling bath 4, has promptly increased the area of the heat-exchange surface between cooling water pipe and the armature core, has improved radiating efficiency.
Embodiment four, this execution mode is described referring to Fig. 3.This execution mode is with the difference of the plate linear permanent magnet synchronous motor of embodiment one described liquid cools; The rear of core of said armature core is provided with a plurality of cotter ways that are parallel to each other 7; Said cotter way 7 parallels with cooling bath 4, and each cotter way 7 internal fixation has steady pin 8.
The steady pin 8 that increases in this execution mode is used for fixing core lamination.
Embodiment five, this execution mode is described referring to Fig. 3.This execution mode is between every adjacent two cotter ways 7 two cooling baths 4 are arranged with the difference of the plate linear permanent magnet synchronous motor of embodiment four described liquid cools.
In this execution mode, between adjacent two cotter ways 7 two cooling baths 4 are arranged, that is: between two cotter ways 7 water inlet pipe and an outlet pipe are arranged.
Embodiment six, this execution mode is described referring to Fig. 4.This execution mode is that with the difference of the plate linear permanent magnet synchronous motor of embodiment one described liquid cools in the middle of each armature tooth, along laterally having groove, said groove embeds thin plate 9 perpendicular to the direction of motion in the said groove towards the air gap side.
Thin plate 9 in this execution mode adopts low resistivity material to constitute, and the conductivity of said low resistivity material increases the thin plate that the low resistance rule is arranged greater than zero on armature tooth, can effectively reduce the dew magnetic of armature tooth end.
Embodiment seven, this execution mode is described referring to Fig. 5.This execution mode is with the difference of the plate linear permanent magnet synchronous motor of embodiment one described liquid cools; Secondary permanent magnet 6 is a slab construction; Be shaped as parallelogram, its minor face is parallel with the direction of motion, and the angle a2 between its long limit and the direction of motion is between 87 °～90 °.
Permanent magnet in this execution mode is a parallelogram, and the long limit and the direction of motion have certain included angle, can effectively reduce the detent force of linear permanent magnet synchronous motor.
Embodiment eight, this execution mode is described referring to Fig. 6.This execution mode is with the difference of the plate linear permanent magnet synchronous motor of embodiment one described liquid cools; Secondary permanent magnet 6 is a slab construction, and every utmost point permanent magnet 6 is along laterally being divided into two permanent magnets 6, and every permanent magnet 6 shapes are parallelogram; And shape is identical; The minor face of every permanent magnet 6 is parallel with the direction of motion, and said two blocks of permanent magnet 6 mirror images symmetry is fixing, and the long limit angulation a1 of said two permanent magnets 6 is between 174 °～180 °.
In this execution mode, the same utmost point adopts two permanent magnets to form, and said two permanent magnets are mirror image and are symmetrical set, and at an angle, can effectively reduce the detent force of linear permanent magnet synchronous motor between the long limit of said two permanent magnets.
The plate linear permanent magnet synchronous motor of liquid cools of the present invention is not limited to above-mentioned the described structure of execution mode; The plate linear permanent magnet synchronous motor of said liquid cools both can be bilateral structure; Also can be single-side structural, and can be the reasonable combination of the described technical characterictic of above-mentioned each execution mode.
Claims (9)
1. the plate linear permanent magnet synchronous motor of liquid cools, it is made up of elementary, secondary and air gap; Secondary permanent magnet (6) and the yoke (5) of comprising; Elementary armature core (1), armature winding (2) and the cooling water pipe (3) of comprising; It is characterized in that; Said armature core (1) is a cuboid, along horizontal lamination, said armature core (1) on the face of air gap; Along laterally having a plurality of rectangular channels that are parallel to each other, armature winding (2) embeds in said rectangular channel; The face of the air gap dorsad of said armature core (1) is rear of core, and along laterally having the cooling bath (4) that even number is parallel to each other, the cross section of said cooling bath (4) is the circle that has opening at said rear of core; Cooling water pipe (3) is made up of water inlet pipe and outlet pipe, and said water inlet pipe is made up of the linkage section of a plurality of cooling sections that are parallel to each other and a plurality of bendings, and two adjacent cooling sections are connected through linkage section; Said outlet pipe is made up of the linkage section of a plurality of cooling sections that are parallel to each other and a plurality of bendings; Two adjacent cooling sections are connected through linkage section; Each cooling section of said water inlet pipe is embedded in the cooling bath (4); Each cooling section of said outlet pipe is embedded in the cooling bath (4), and embedded water pipe, the embedded water pipe of emitting of another cooling bath (4) put into of a cooling bath (4) in adjacent arbitrarily two cooling baths (4), and promptly the cooling section of the cooling section of water inlet pipe and outlet pipe alternately; At the tail end of electric motor primary, water inlet pipe and outlet pipe are joined together to form path; The delivery port of said outlet pipe and the water inlet of water inlet pipe are positioned at the head end of said electric motor primary.
2. the plate linear permanent magnet synchronous motor of liquid cools according to claim 1 is characterized in that said cooling water pipe (3) is made by metal material.
3. the plate linear permanent magnet synchronous motor of liquid cools according to claim 1 is characterized in that, the A/F d2 of the circular cross section that has opening of said cooling bath (4) is greater than 0.4 times of this circular cross-section diameter d 1 and less than said diameter d 1.
4. the plate linear permanent magnet synchronous motor of liquid cools according to claim 1; It is characterized in that; The scope of the A/F d2 of the circular cross section that has opening of described cooling bath (4) is 0.4d1-0.6d1, and said d1 is the diameter of the circular cross section that has opening of cooling bath (4).
5. the plate linear permanent magnet synchronous motor of liquid cools according to claim 1 is characterized in that the rear of core of said armature core is provided with a plurality of cotter ways that are parallel to each other (7), and said cotter way (7) parallels with cooling bath (4).
6. the plate linear permanent magnet synchronous motor of liquid cools according to claim 5 is characterized in that, between every adjacent two cotter ways (7) two cooling baths (4) is arranged.
7. the plate linear permanent magnet synchronous motor of liquid cools according to claim 1; It is characterized in that, in the middle of each armature tooth, laterally have groove towards air gap side edge; Said groove is perpendicular to the direction of motion; Embed thin plate (9) in the said groove, said thin plate adopts low resistivity material to constitute, and said low resistivity material conductivity is greater than zero.
8. the plate linear permanent magnet synchronous motor of liquid cools according to claim 1; It is characterized in that secondary permanent magnet (6) is a slab construction, is shaped as parallelogram; Its minor face is parallel with the direction of motion, and the angle between its long limit and the direction of motion is between 87 °～90 °.
9. the plate linear permanent magnet synchronous motor of liquid cools according to claim 1 is characterized in that secondary permanent magnet (6) is a slab construction; Every utmost point permanent magnet (6) is along laterally being divided into two permanent magnets (6); Every permanent magnet (6) shape is parallelogram, and shape is identical, and the minor face of every permanent magnet (6) is parallel with the direction of motion; Said two permanent magnets (6) mirror image symmetry is fixing, and the long limit angulation of said two permanent magnets (6) is between 174 °～180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110129321 CN102158043B (en) | 2011-05-18 | 2011-05-18 | Liquid-cooled flat linear permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110129321 CN102158043B (en) | 2011-05-18 | 2011-05-18 | Liquid-cooled flat linear permanent magnet synchronous motor |
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| Publication Number | Publication Date |
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| CN102158043A CN102158043A (en) | 2011-08-17 |
| CN102158043B true CN102158043B (en) | 2012-12-05 |
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| CN 201110129321 Expired - Fee Related CN102158043B (en) | 2011-05-18 | 2011-05-18 | Liquid-cooled flat linear permanent magnet synchronous motor |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412699B (en) * | 2011-11-04 | 2013-10-16 | 哈尔滨泰富实业有限公司 | Double-water cooled flat linear synchronous machine with permanent magnets with unequal width |
| CN102510173A (en) * | 2011-11-09 | 2012-06-20 | 哈尔滨泰富实业有限公司 | Cooling structure of flat permanent-magnet linear water-cooling motor |
| CN102821500B (en) * | 2012-08-15 | 2016-01-20 | 杭州四达电炉成套设备有限公司 | The resin-cast yoke of medium frequency induction melting furnace |
| EP2720351B1 (en) * | 2012-10-12 | 2017-04-26 | Siemens Aktiengesellschaft | Device for cooling a component of an electric machine by means of multiple cooling path |
| CN103107672A (en) * | 2013-01-23 | 2013-05-15 | 浙江大学 | Double-sided permanent magnet linear synchronous motor |
| CN105024519B (en) * | 2014-04-25 | 2018-06-01 | 上海微电子装备（集团）股份有限公司 | A kind of ironless linear motors |
| CN104967276A (en) * | 2015-07-16 | 2015-10-07 | 哈尔滨工业大学 | Liquid-cooling iron-coreless permanent-magnet linear motor |
| CA2940735C (en) * | 2016-08-30 | 2017-04-11 | Peter Timan | Liquid cooled linear induction motor |
| CN106487199A (en) * | 2016-12-23 | 2017-03-08 | 广州市昊志机电股份有限公司 | Linear motor rotor |
| CN107612271B (en) * | 2017-08-09 | 2023-10-03 | 广州市昊志机电股份有限公司 | Linear motor primary and processing method of linear motor primary cooling structure |
| CN110571980A (en) * | 2019-09-25 | 2019-12-13 | 苏州泰科贝尔直驱电机有限公司 | Double dynamical water cooled machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002218730A (en) * | 2001-01-18 | 2002-08-02 | Sodick Co Ltd | Linear motor fitted with core, its manufacturing method, cooling member used for its production, and its manufacturing method |
| JP4560303B2 (en) * | 2004-02-17 | 2010-10-13 | 山洋電気株式会社 | Armature winding cooling structure |
| CN101132137B (en) * | 2007-08-27 | 2015-04-15 | 清华大学 | Linear motor radiator |
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