CN111446132A - Air gap armature and manufacturing method thereof and motor - Google Patents
Air gap armature and manufacturing method thereof and motor Download PDFInfo
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- CN111446132A CN111446132A CN201910861019.8A CN201910861019A CN111446132A CN 111446132 A CN111446132 A CN 111446132A CN 201910861019 A CN201910861019 A CN 201910861019A CN 111446132 A CN111446132 A CN 111446132A
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- composite material
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- combined supporting
- supporting structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/1009—Interconnected mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H2071/109—Operating or release mechanisms with provisions for selecting between automatic or manual reset
Abstract
The invention discloses an air gap armature, which consists of a yoke iron core punching sheet, a combined supporting structure, a stator coil, a wedge-shaped key and a slot wedge, wherein the combined supporting structure consists of M composite material blocks, M-1 non-magnetic or weak magnetic metal plates, adhesive cement and N composite material rods; the invention is suitable for being used as a high-temperature superconducting motor or a high-temperature superconducting direct-driven wind driven generator for ship propulsion with the requirements of high power, low rotating speed, compact structure, low running cost and the like.
Description
Technical Field
The invention belongs to the field of motors, and particularly relates to a high-torque-density high-temperature superconducting air gap armature, a manufacturing method thereof and a motor using the air gap armature.
Background
Compared with the conventional motor, the high-temperature superconducting motor has the remarkable advantages of small volume, light weight, high efficiency, stable operation and the like, and has good application prospect. The research on a 36.5MW high-temperature superconducting propulsion motor model machine is completed in 2008 in the United states, and the motor model machine basically has engineering research and development capability. German Siemens company has successfully developed 4MW high-temperature superconducting motor in 2011. Republic of korea has made a DAPAS program for the development of superconducting technology, and japan completed the development of a 3MW high temperature superconducting propulsion motor in 2013. The seventh two research institutes of China ship re-engineering group company in China respectively complete the development of 100kW high-temperature superconducting motors and 1000kW high-temperature superconducting motors in 2007 and 2012. The principles of research on a stator superconducting armature synchronous motor, a stator superconducting induction motor, a mixed flux superconducting motor and the like are respectively developed in Qinghua university, Beijing traffic university and Harbin industry university.
For a high temperature superconducting motor, the superconducting wire can generate a strong magnetic field in the air gap of the motor due to the strong current carrying capacity of the superconducting wire. In order to eliminate the serious magnetic saturation and the multiple iron core loss generated by the ultrahigh air gap magnetic density on the stator iron core tooth part, an air gap armature structure, namely an iron-core-free tooth space structure is generally adopted, the structure can eliminate the stator tooth space harmonic wave, and simultaneously can improve the heat load of the motor and the torque density of the motor through the flexible design of the stator linear load, so that the technology of adopting the air gap armature structure as a high-temperature superconducting motor is inevitable. Since the iron teeth are eliminated, and the stator coil is directly under the main magnetic field, the coil is subjected to a large electromagnetic force, and therefore the stator coil needs to be reliably fixed and have good insulating performance.
In the prior art, there are a number of air gap armature solutions. In US 2010/0194232a1, a small air gap armature stator is described, which is composed of magnetically non-conductive frame supports and magnetically non-conductive axial supports, the stator coils being supported by magnetically conductive yoke parts together with iron and magnetically non-conductive structural members. The mounting process of the existing air gap armature supporting structure is complex, and in the process of winding off, an air gap winding is easily scratched and insulated by the edge of the non-magnetic conductive supporting piece, so that the service life of a motor is influenced.
Disclosure of Invention
One of the objectives of the present invention is to overcome the disadvantages of the prior art, and to provide an air gap armature that satisfies the requirements of stiffness and strength, and also satisfies the requirements of simple process, so as to simplify the assembly process.
The technical scheme adopted by the invention for solving the technical problems is as follows: an air gap armature comprises a yoke iron core stamped sheet, a plurality of combined supporting structures axially fixed on the yoke iron core stamped sheet and a stator coil arranged between two adjacent combined supporting structures, wherein the yoke iron core stamped sheet is of a circular or fan-shaped structure with dovetail grooves in the axial direction; the combined supporting structure is composed of M composite material blocks, M-1 non-magnetic/weak-magnetic metal plates and a composite material rod penetrating through the composite material blocks and the non-magnetic/weak-magnetic metal plates (M is more than or equal to 2, N is more than or equal to 1), adhesive glue is arranged between the composite material blocks and the non-magnetic/weak-magnetic metal plates, the sections of the composite material blocks and the non-magnetic/weak-magnetic metal plates are isosceles trapezoids with the same size, the inclination angle of the inclined edge of each trapezoid is the same as that of the dovetail groove, and the height of each inclined edge is smaller than that of the dovetail groove; the wide top end of each combined supporting structure is fixedly connected with the yoke iron core stamped steel through a wedge-shaped key, and the narrow bottom ends of two adjacent combined supporting structures are wedged with the connecting groove between the stator coil.
The air gap armature is characterized in that a composite material block is formed by processing a glass fiber plate or a carbon fiber plate, a non-magnetic/weak-magnetic metal plate is formed by processing a stainless steel plate, an aluminum alloy plate or a copper plate, and the composite material block and the non-magnetic/weak-magnetic metal plate are alternately laminated and bonded end to end.
The air gap armature is characterized in that the cross section of a composite material rod of the air gap armature is circular or square, the air gap armature is formed by on-site threading and curing of glass fiber wires or carbon fiber wires or processing of a composite material forming rod, and the air gap armature is axially threaded into connecting holes of a composite material block and a non-magnetic/weak-magnetic metal plate.
The stator coil of the air-gap armature is cooled by liquid internal cooling or soaking oil.
The second objective of the present invention is to provide a method for manufacturing an air-gap armature, comprising the steps of:
step 1, manufacturing a yoke iron core stamped sheet, a stator coil, a wedge-shaped key and a slot wedge respectively;
step 2, selecting a glass fiber plate or a carbon fiber plate to process to obtain a composite material block, selecting a stainless steel plate, an aluminum alloy plate or a copper plate to process to obtain a non-magnetic/weak-magnetic metal plate, using adhesive to alternately overlap and bond the composite material block and the non-magnetic/weak-magnetic metal plate end to end, using tooling to ensure that connecting holes and side faces of the composite material block and the non-magnetic/weak-magnetic metal plate are aligned, respectively penetrating a glass fiber wire or a carbon fiber wire into the connecting holes of the composite material block and the non-magnetic/weak-magnetic metal plate along the axial direction, then impregnating resin and curing to form a composite material rod, and integrally machining to obtain a;
step 3, placing the wide top end of the combined supporting structure in a dovetail groove of a yoke iron core stamped sheet;
and 5, punching a slot wedge at the narrow bottom end of the combined supporting structure along the axial direction, expanding and fixing the stator coil, and obtaining the air gap armature after VPI.
The invention also provides an air gap armature motor, which comprises a low-temperature refrigeration system, a refrigerant transmission coupling device, a non-drive end bearing, a bearing seat, a rotor, an end cover, a stator, a disc type collecting ring, a brush holder, a drive end bearing and a bearing seat, wherein the stator consists of a machine base and the air gap armature.
The invention has the beneficial effects that:
the combined supporting structure of the air gap armature integrally adopts a laminating structure of a composite material block and a non-magnetic or weak magnetic conductive metal plate, and a composite material rod penetrates through the composite material block and the metal plate to form a whole; compared with the scheme of the full composite material wedge-shaped strip, the structure that the composite material blocks and the metal plates are alternately laminated improves the overall rigidity of the supporting piece, and reduces circumferential displacement and vibration; compared with the scheme of the all-metal wedge-shaped strip formed by laminating multiple sections, the method effectively reduces the eddy current loss.
In addition, the strength of the combined supporting structure is mainly provided by the metal plate, and the composite material blocks only play a role in filling and enhancing the rigidity, so that the forming process of the composite material blocks is simpler, and the composite material blocks can be directly processed by the laminated plate without considering the attenuation of the fiber strength caused by machining.
And moreover, the combined supporting structure is an independent unit and is assembled with the machine base to form the stator as a finished product, so that the installation process of the air gap armature is greatly simplified, and the manufacturing difficulty is reduced.
The invention has great innovation in the aspects of improving rigidity, simplifying process, reducing cost, reducing vibration and noise and the like, and is particularly suitable for being applied to a high-temperature superconducting motor or a high-temperature superconducting direct-driven wind driven generator for ship propulsion with the requirements of high power, low rotating speed, compact structure, low running cost and the like.
Drawings
FIG. 1 is a block diagram of a motor employing an air gap armature of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the modular support structure of the present invention;
FIG. 4 is a schematic view of the combined supporting structure of the present invention with the non-magnetic/weakly magnetic metal plate hidden;
FIG. 5 is a schematic structural view of a composite block of the present invention;
fig. 6 is a schematic structural diagram of a non-magnetic metal plate according to the present invention.
The figures are numbered: 1-low temperature refrigeration system, 2-refrigerant transmission coupling device, 3-non-driving end bearing, 4-rotor, 5-end cover, 6-stator, 7-disc collecting ring, 8-brush yoke, 9-driving end bearing, 61-yoke iron core punching sheet, 62-wedge key, 63-combined supporting structure, 64-stator coil, 65-slot wedge, 631-composite material block, 632-non-magnetic/weak magnetic metal plate and 633-composite material rod.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1, the high-temperature superconducting motor using the air gap armature of the invention comprises a low-temperature refrigeration system 1, a refrigerant transmission coupling device 2, a non-drive end bearing 3, a bearing seat, a rotor 4, an end cover 5, a stator 6, a disc type collecting ring 7, a brush holder 8, a drive end bearing 9, a bearing seat and the like, wherein the stator 6 adopts an air gap armature structure without iron teeth and consists of a machine seat and an air gap armature.
Example 2
In a basic embodiment of the present invention, as shown in fig. 2 to 6, an air gap armature is composed of a yoke iron core stamped sheet 61, a wedge-shaped key 62, a combined supporting structure 63, a stator coil 64 and a slot wedge 65, wherein the yoke iron core stamped sheet 61 is a circular or fan-shaped structure with dovetail slots in the axial direction, the combined supporting structure 63 is a laminated structure of 11 carbon fiber blocks and 10 stainless steel plates, and 2 carbon fiber rods penetrate through the laminated structure to form a whole; the holes of the 11 carbon fiber blocks and the holes of the 10 stainless steel plates are round holes; the stator coil 64 can adopt a single-layer Robel coil structure, and the wide top end of the combined supporting structure 63 is placed in the dovetail groove of the yoke iron core stamped sheet 61 and then is axially expanded and fixed through the wedge-shaped key 62; the stator coil 64 is placed in a slot formed by the yoke iron core punching sheet 61 and the combined supporting structure 63, a slot wedge 65 is punched at the narrow top end of the combined supporting structure 63 along the axial direction, and the stator coil 64 is fixed in an expanding manner; the stator coil 64 is cooled by liquid internal cooling; the preparation steps of the combined supporting structure 63 are as follows: firstly, alternately laminating and bonding 11 carbon fiber blocks and 10 stainless steel plates end to end by using bonding glue, and ensuring the alignment of holes and side surfaces by using a tool; secondly, respectively penetrating carbon fiber wires into 2 holes of 11 carbon fiber blocks and 10 stainless steel plates along the axial direction, and then dipping and curing; and finally, carrying out integral machining according to the drawing requirements to obtain the combined supporting structure 63.
Example 3
The invention relates to a manufacturing method of an air gap armature, which comprises the following steps:
step 1, manufacturing a yoke iron core punching sheet 61, a stator coil 64, a wedge key 62 and a slot wedge 65 respectively.
And 2, processing a glass fiber plate or a carbon fiber plate to obtain a composite material block 631, processing a stainless steel plate, an aluminum alloy plate or a copper plate to obtain a non-magnetic/weak-magnetic metal plate 632, alternately laminating and bonding the composite material block 631 and the non-magnetic/weak-magnetic metal plate 632 together by using bonding glue, ensuring the connection holes and the side surfaces of the metal plate to be aligned by using tools, respectively penetrating a glass fiber wire or a carbon fiber wire into the connection holes of the composite material block 631 and the non-magnetic/weak-magnetic metal plate 632 along the axial direction, then impregnating resin and curing to form a composite material rod 633, and integrally machining to obtain the combined supporting structure 63.
And step 3, placing the wide top end of the combined supporting structure 63 in a dovetail groove of the yoke iron core stamped sheet 61.
And 4, driving a wedge-shaped key 62 into a gap between the combined supporting structure 63 and the dovetail groove along the axial direction, expanding and fixing the combined supporting structure 63, and placing a stator coil 64 into a groove formed by the yoke iron core stamped sheet 61 and the combined supporting structure 63.
And 5, punching a slot wedge 65 along the axial direction at the narrow bottom end of the combined supporting structure 63, expanding and fixing the stator coil 64, and obtaining the air gap armature after VPI.
And continuously assembling the air gap armature, the base, the low-temperature refrigeration system 1, the refrigerant transmission coupling device 2, the non-drive end bearing 3, the bearing seat, the rotor 4, the end cover 5, the type collecting ring 7, the brush holder 8, the drive end bearing 9 and the bearing seat, thus finishing the manufacture of the air gap armature motor.
Example 4
Unlike example 2, the composite material block 631 is processed from a glass fiber sheet.
Example 5
Different from the embodiment 2, the non-magnetic conductive metal plate is processed by an aluminum alloy plate.
Example 6
Unlike example 2, the non-magnetic conductive metal plate was formed by processing a copper plate.
Example 7
The difference from embodiment 2 is that the stator coil cooling is performed by immersion oil cooling.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (6)
1. An air-gap armature, comprising: the stator coil structure comprises yoke iron core stamped sheets (61), a plurality of combined supporting structures (63) axially fixed on the yoke iron core stamped sheets (61) and stator coils (64) arranged between two adjacent combined supporting structures (63), wherein the yoke iron core stamped sheets (61) are of a circular or fan-shaped structure with dovetail grooves in the axial direction; the combined supporting structure (63) is composed of M composite material blocks (631), M-1 non-magnetic/weak-magnetic metal plates (632) and a composite material rod (633) penetrating through the composite material blocks (631) and the non-magnetic/weak-magnetic metal plates (632) (M is more than or equal to 2, N is more than or equal to 1), adhesive glue is arranged between the composite material blocks (631) and the non-magnetic/weak-magnetic metal plates (632), the sections of the composite material blocks (631) and the non-magnetic/weak-magnetic metal plates (632) are isosceles trapezoids with the same size, the inclination angle of the inclined edge of each trapezoid is the same as that of the dovetail groove, and the height of each inclined edge of each trapezoid is smaller than that of the dovetail groove; a wedge-shaped key (62) is arranged between the wide top end of each combined supporting structure (63) and the yoke iron core stamped steel (61), and a slot wedge (65) is arranged between the narrow bottom ends of two adjacent combined supporting structures (63).
2. An air-gap armature as claimed in claim 1, wherein the composite material block (631) is formed from a glass fibre or carbon fibre sheet, the magnetically impermeable/weakly magnetically permeable metal sheet (632) is formed from a stainless steel, aluminium alloy or copper sheet, and the composite material block (631) and the magnetically impermeable/weakly permeable metal sheet (632) are laminated and bonded end to end alternately.
3. An air gap armature as claimed in claim 1 wherein the composite rod (633) is round or square in cross-section, and is formed by in situ threading of glass or carbon fibre filaments, cured or machined from a composite profiled rod, axially into the attachment holes of the composite block (631) and the non/weakly magnetically permeable metal plate (632).
4. An air-gap armature according to claim 1, wherein the stator coils (64) are cooled using liquid-cooled or immersion oil.
5. A method of making an air-gap armature as claimed in claim 1, comprising the steps of:
step 1, manufacturing a yoke iron core punching sheet (61), a stator coil (64), a wedge-shaped key (62) and a slot wedge (65) respectively;
step 2, selecting a glass fiber plate or a carbon fiber plate to process to obtain a composite material block (631), selecting a stainless steel plate, an aluminum alloy plate or a copper plate to process to obtain a non-magnetic/weak-magnetic metal plate (632), using adhesive to alternately overlap and bond the composite material block (631) and the non-magnetic/weak-magnetic metal plate (632) end to end, using equipment to ensure that connecting holes and side surfaces of the composite material block and the metal plate are aligned, respectively penetrating a glass fiber wire or a carbon fiber wire into the connecting holes of the composite material block (631) and the non-magnetic/weak-magnetic metal plate (632) along the axial direction, then impregnating resin and curing to form a composite material rod (633), and integrally machining to obtain a combined supporting structure (63);
step 3, placing the wide top end of the combined supporting structure (63) in a dovetail groove of a yoke iron core stamped sheet (61);
step 4, a wedge-shaped key (62) is driven into a gap between the combined supporting structure (63) and the dovetail groove along the axial direction, the combined supporting structure (63) is expanded and fixed, and a stator coil (64) is placed into a groove formed by the yoke iron core punching sheet (61) and the combined supporting structure (63);
and 5, punching a slot wedge (65) at the narrow bottom end of the combined supporting structure (63) along the axial direction, and expanding and fixing the stator coil (64) to obtain the air gap armature after VPI.
6. The utility model provides an air gap armature motor, includes low temperature refrigerating system (1), refrigerant transmission coupling device (2), non-drive end bearing (3) and bearing frame, rotor (4), end cover (5), stator (6), disk collecting ring (7), brush yoke (8), drive end bearing (9) and bearing frame, its characterized in that: the stator (6) is composed of a housing and an air-gap armature as claimed in claim 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910861019.8A CN111446132B (en) | 2019-09-11 | 2019-09-11 | Air gap armature and manufacturing method thereof and motor |
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| CN201910861019.8A CN111446132B (en) | 2019-09-11 | 2019-09-11 | Air gap armature and manufacturing method thereof and motor |
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| CN111446132A true CN111446132A (en) | 2020-07-24 |
| CN111446132B CN111446132B (en) | 2022-04-08 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101552523A (en) * | 2009-05-19 | 2009-10-07 | 哈尔滨工业大学 | High thrust density cylinder type linear electric motor |
| CN101964555A (en) * | 2009-02-04 | 2011-02-02 | 东元西屋马达公司 | Small air gap air-core stator |
| CN103532346A (en) * | 2013-10-31 | 2014-01-22 | 中国船舶重工集团公司第七一二研究所 | Air-gap armature motor |
| CN205986383U (en) * | 2016-03-29 | 2017-02-22 | 哈尔滨电机厂有限责任公司 | Latent utmost point is brushless mixed excitation generator of rotor side by side |
| CN109728708A (en) * | 2018-12-19 | 2019-05-07 | 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） | A kind of high-temperature superconducting motor |
| KR20190096512A (en) * | 2018-02-09 | 2019-08-20 | 두산중공업 주식회사 | Rotor assembly and superconducting generator having the same |
-
2019
- 2019-09-11 CN CN201910861019.8A patent/CN111446132B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964555A (en) * | 2009-02-04 | 2011-02-02 | 东元西屋马达公司 | Small air gap air-core stator |
| CN101552523A (en) * | 2009-05-19 | 2009-10-07 | 哈尔滨工业大学 | High thrust density cylinder type linear electric motor |
| CN103532346A (en) * | 2013-10-31 | 2014-01-22 | 中国船舶重工集团公司第七一二研究所 | Air-gap armature motor |
| CN205986383U (en) * | 2016-03-29 | 2017-02-22 | 哈尔滨电机厂有限责任公司 | Latent utmost point is brushless mixed excitation generator of rotor side by side |
| KR20190096512A (en) * | 2018-02-09 | 2019-08-20 | 두산중공업 주식회사 | Rotor assembly and superconducting generator having the same |
| CN109728708A (en) * | 2018-12-19 | 2019-05-07 | 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） | A kind of high-temperature superconducting motor |
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