CN112039231A - Electro-magnetic doubly salient motor adopting composite stator - Google Patents
Electro-magnetic doubly salient motor adopting composite stator Download PDFInfo
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- CN112039231A CN112039231A CN202010846419.4A CN202010846419A CN112039231A CN 112039231 A CN112039231 A CN 112039231A CN 202010846419 A CN202010846419 A CN 202010846419A CN 112039231 A CN112039231 A CN 112039231A
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- armature tooth
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- 239000002131 composite material Substances 0.000 title claims abstract description 47
- 238000004804 winding Methods 0.000 claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims abstract 2
- 230000005284 excitation Effects 0.000 claims description 33
- 230000005291 magnetic effect Effects 0.000 claims description 18
- 230000004323 axial length Effects 0.000 claims description 4
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 20
- 238000000926 separation method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/18—Windings for salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses an electro-magnetic doubly salient motor adopting a composite stator. Wherein, compound stator constitutes by left side armature tooth stator, middle yoke portion stator and right side armature tooth stator in proper order along the axial, two armature tooth stators constitute by annular armature tooth stator yoke portion, a plurality of armature tooth palm and the heel of arranging along circumference equidistance interval, and centralized armature winding twines at the tooth and follows. The middle yoke stator is constituted only by a ring-shaped core yoke. The single annular magnet exciting coil is arranged in an annular cavity formed by the left armature tooth stator, the right armature tooth stator and the middle yoke stator. The salient pole inner rotor is only composed of an iron core, is firm and durable, and is convenient to realize brushless operation. The composite stator structure of the invention realizes the spatial isolation of the armature winding and the magnet exciting coil, improves the stability of the motor and has high power density. As an automobile generator, the modular composite stator is beneficial to processing and manufacturing, and the cost of the motor is reduced.
Description
Technical Field
The invention relates to the technical field of motors, in particular to an electro-magnetic doubly salient motor adopting a composite stator.
Background
Compared with a rotor excitation type doubly salient motor, the traditional stator excitation type doubly salient motor has the advantages that the rotor is only composed of an iron core magnetic yoke and does not comprise a permanent magnet and a winding, so that the traditional stator excitation type doubly salient motor is convenient to process and manufacture, strong in robustness, capable of realizing brushless operation and particularly suitable for being used as an automobile motor to work under severe working conditions.
Although the stator excitation type doubly salient motor is simple in structure and easy to realize in working principle, the excitation winding and the armature winding are simultaneously placed between adjacent stator convex teeth, so that the design space of the groove areas of the excitation winding and the armature winding is limited and influenced mutually, on one hand, the stability of the motor is reduced, on the other hand, larger excitation cannot be applied, and therefore the motor is limited as a high-performance product of an automobile generator. How to solve the problem of design space conflict of the excitation winding and the armature winding is always a hotspot and difficulty of the research of the stator excitation type doubly salient motor. Experts and scholars to solve this problem typically widen or change the stator structure, but this increases the difficulty of manufacturing the motor. Therefore, the design concept of the composite motor not only provides a high-freedom design space for the motor, but also reduces the processing and manufacturing complexity of the motor, so that the composite motor has a certain development prospect when used for an automobile generator.
In order to keep the simple structure characteristic of a doubly salient motor rotor and be better used in the field of automobile generators. A composite stator design mode is adopted to provide a multi-degree-of-freedom design space for an excitation source, so that the magnetic adjusting capacity of the motor can be effectively improved, and the optimal performance of the motor can be further exerted. Therefore, the design of the composite stator has important theoretical research and practical application value.
Disclosure of Invention
The present invention is directed to an electrically excited doubly salient electric machine using a composite stator to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an electro-magnetic doubly salient motor adopting a composite stator comprises an axial clamping type composite stator, a salient pole rotor is coaxially arranged in the composite stator, and an air gap is arranged between the composite stator and the salient pole rotor;
the composite stator consists of a left armature tooth stator, a right armature tooth stator and a middle yoke stator which are arranged on two axial sides and are used for connecting the left armature tooth stator and the right armature tooth stator to form a magnetic circuit;
the left armature tooth stator and the right armature tooth stator are composed of an annular armature tooth stator yoke part, a plurality of tooth palms uniformly arranged at intervals along the radial inner side of the armature tooth stator yoke part and tooth roots extending axially from the radial inner edge of the tooth palms, wherein the tooth palms and the tooth roots are arranged at intervals along the circumference, armature windings are wound on the tooth roots, and a concentrated winding form is adopted;
the middle yoke part stator is only composed of an annular stator yoke part iron core, is clamped between the annular armature tooth stator yoke parts of the left armature tooth stator and the right armature tooth stator, and has the same outer diameter and size, and the magnet exciting coil is arranged in an annular cavity formed by the three parts;
the salient pole rotor is composed of a rotor core magnetic yoke coaxial with the composite stator and a plurality of rotor salient poles protruding out of the rotor core at equal intervals along the circumferential direction of the outer edge of the rotor core magnetic yoke, and permanent magnets and any winding are not placed on the rotor
Preferably, the number of the palm and the tooth root on left side armature tooth stator and the right side armature tooth stator is equal and the tooth root on each left side armature tooth stator is located between the adjacent tooth roots of right side armature tooth stator along the circumferencial direction, and the tooth root on each right side armature tooth stator is located between the adjacent tooth roots of left side armature tooth stator along the circumferencial direction simultaneously.
Preferably, the axial length of the tooth root on the left side armature tooth statorl 1Axial length of tooth root on right armature tooth statorl 2Axial length of left armature tooth stator yoke corel 3Axial length of stator yoke core of right armature teethl 4Stator axial length of the yokel 5The following relationship is satisfied:l 1= l 2= l 3+ l 4+ l 5。
preferably, the excitation coil is formed by a multi-turn single annular coil, and the magnitude of the magnetic potential source is determined by the magnitude of the applied direct current excitation current and direct current in any direction can be introduced.
Preferably, the composite stator and the salient pole rotor are both made of ferromagnetic materials and are formed by laminating silicon steel sheets.
Compared with the prior art, the invention has the beneficial effects that:
(1) the electro-magnetic doubly salient motor adopting the composite stator not only keeps the characteristic of simple structure of a rotor of the doubly salient motor, but also solves the problem of design space conflict of an excitation winding and an armature winding, can effectively improve the magnetic regulation capacity of the motor and further exerts the optimal performance of the motor.
(2) According to the electric excitation doubly salient motor adopting the composite stator, the design mode of the composite stator is adopted, so that a multi-freedom-degree design space is provided for an excitation source, the spatial separation of an armature winding and an excitation coil can be realized, the independent design redundancy of an electric load and a magnetic load is improved, meanwhile, the assembly scheme of the composite stator and the placement mode of a single annular excitation coil simplify the processing and assembly difficulty of the motor, and the cost is effectively reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the split structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a technical scheme that: an electro-magnetic doubly salient motor adopting a composite stator comprises an axial clamping type composite stator 1, a salient pole rotor 2 is coaxially arranged in the composite stator 1, and an air gap 3 is arranged between the composite stator 1 and the salient pole rotor 2;
referring to fig. 1, the composite stator 1 is composed of a left armature tooth stator 11, a right armature tooth stator 12 and a middle yoke stator 13 for connecting the two to form a magnetic circuit;
referring to fig. 2, the left armature tooth stator 11 and the right armature tooth stator 12 are composed of an annular armature tooth stator yoke portion 111/121, a plurality of tooth legs 112/122 uniformly arranged at intervals along the radial inner side of the armature tooth stator yoke portion, and tooth roots 113/123 axially extending from the radial inner edge of the tooth legs 112/122, wherein the tooth legs 112/122 and the tooth roots 113/123 are arranged at equal intervals along the circumference, and the armature coils 14 are wound on the tooth roots 113/123 in a concentrated winding manner;
the middle yoke stator 13 is composed of only a ring-shaped stator yoke iron core 131, and is clamped between the ring-shaped armature tooth stator yoke 111/121 of the left armature tooth stator 11 and the right armature tooth stator 12, the outer diameters of the three are consistent, and the excitation coil 15 is placed in a ring-shaped cavity formed by the three;
the salient pole rotor 2 is composed of a rotor core magnetic yoke 21 coaxial with the composite stator 1 and a plurality of rotor salient poles 22 protruding out of the rotor core at equal intervals along the circumferential direction of the outer edge of the rotor core magnetic yoke 21, and permanent magnets and any winding are not placed on the rotor.
The tooth legs 111/121 and tooth roots 112/122 on the left armature tooth stator 11 and the right armature tooth stator 12 are equal in number and the tooth root 112 on each left armature tooth stator 11 is circumferentially located between the adjacent tooth roots 122 of the right armature tooth stator 12, while the tooth root 122 on each right armature tooth stator 12 is circumferentially located between the adjacent tooth roots 112 of the left armature tooth stator 11.
Axial length of tooth root 112 on the left armature tooth stator 11l 1Axial length of tooth root 122 on right armature tooth stator 12l 2Axial length of core at left armature tooth stator yoke 111l 3Axial length of core 121 of right armature tooth stator yokel 4Axial length of the intermediate yoke stator 13l 5The following relationship is satisfied:l 1= l 2= l 3+ l 4+ l 5。
the excitation coil 15 is formed by a multi-turn single annular coil, and the magnitude of the magnetic potential source is determined by the magnitude of the applied direct current excitation current and direct current in any direction can be introduced.
The composite stator 1 and the salient pole rotor 2 are both made of ferromagnetic materials and are formed by laminating silicon steel sheets.
The invention relates to an electro-magnetic doubly salient motor adopting a composite stator, which adopts a composite stator topological structure in the design and provides a multi-degree-of-freedom design space. The monomer annular excitation coil is placed in an annular cavity formed by the left armature stator, the right armature stator and the middle yoke stator, so that the physical separation of the armature winding and the excitation coil is realized, the mutual influence of the armature winding and the excitation coil is avoided, and the stability of the motor is improved. The design of the composite stator avoids the problem of design space conflict of an armature winding and a magnet exciting coil, and meanwhile, the motor is convenient to assemble and manufacture, and the processing cost of the motor is reduced. Therefore, the electric excitation doubly salient motor adopting the composite stator provided by the invention has essential difference from the existing electric excitation doubly salient motor in the aspects of theoretical analysis, structural design and the like.
In conclusion, the electro-magnetic doubly salient motor adopting the composite stator not only keeps the characteristic of simple structure of a rotor of the doubly salient motor, but also solves the problem of design space conflict of an excitation winding and an armature winding, can effectively improve the magnetic regulation capacity of the motor and further exerts the optimal performance of the motor; according to the electric excitation doubly salient motor adopting the composite stator, the design mode of the composite stator is adopted, so that a multi-freedom-degree design space is provided for an excitation source, the spatial separation of an armature winding and an excitation coil can be realized, the independent design redundancy of an electric load and a magnetic load is improved, meanwhile, the assembly scheme of the composite stator and the placement mode of a single annular excitation coil simplify the processing and assembly difficulty of the motor, and the cost is effectively reduced.
The invention is not described in detail, but is well known to those skilled in the art.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The utility model provides an adopt compound stator's electric excitation doubly salient motor which characterized in that: the motor adopts an axial clamping type composite stator (1), a salient pole rotor (2) is coaxially arranged in the composite stator (1), and an air gap (3) is arranged between the composite stator (1) and the salient pole rotor (2);
the composite stator (1) is composed of a left armature tooth stator (11) and a right armature tooth stator (12) which are arranged at two axial sides, and a middle yoke stator (13) which is used for connecting the left armature tooth stator and the right armature tooth stator to form a magnetic circuit;
the left armature tooth stator (11) and the right armature tooth stator (12) are composed of an annular armature tooth stator yoke portion (111/121), a plurality of tooth palms (112/122) uniformly arranged at intervals along the radial inner side of the armature tooth stator yoke portion (111/121) and tooth roots (113/123) extending axially from the radial inner edge of the tooth palms (112/122), wherein the tooth palms (112/122) and the tooth roots (113/123) are arranged at intervals along the circumference, armature windings (14) are wound on the tooth roots (113/123), and a concentrated winding form is adopted;
the middle yoke part stator (13) is only composed of an annular stator yoke part iron core (131), and is clamped between the annular armature tooth stator yoke parts (111/121) of the left armature tooth stator (11) and the right armature tooth stator (12), the outer diameters of the three are consistent, and the magnet exciting coil (15) is placed in an annular cavity formed by the three;
the salient pole rotor (2) is composed of a rotor core magnetic yoke (21) coaxial with the composite stator (1) and a plurality of rotor salient poles (22) protruding out of the rotor core at equal intervals along the circumferential direction of the outer edge of the rotor core magnetic yoke (21), and permanent magnets and any winding are not placed on the rotor (2).
2. An electrically excited doubly salient machine using a composite stator according to claim 1, wherein: tooth palm (112/122) and tooth root (113/123) on left side armature tooth stator (11) and right side armature tooth stator (12) the number equals and tooth root (113) on each left side armature tooth stator (11) is located between the adjacent tooth root (123) of right side armature tooth stator (12) along the circumferencial direction, and tooth root (123) on each right side armature tooth stator (12) is located between the adjacent tooth root (113) of left side armature tooth stator (11) along the circumferencial direction simultaneously.
3. A method according to claim 1, usingThe electro-magnetic doubly salient motor of the composite stator is characterized in that: axial length of tooth root (113) on left armature tooth stator (11)l 1Axial length of tooth root (123) on said right armature tooth stator (12)l 2Axial length of core of said left armature tooth stator yoke (111)l 3Axial length of iron core of right armature tooth stator yoke part (121)l 4Axial length of the intermediate yoke stator (13)l 5The following relationship is satisfied:l 1= l 2= l 3+ l 4+ l 5。
4. an electrically excited doubly salient machine using a composite stator according to claim 1, wherein: the excitation coil (15) is formed by a multi-turn single annular coil, the magnitude of a magnetic potential source is determined by the magnitude of applied direct current excitation current, and direct current in any direction can be introduced.
5. An electrically excited doubly salient machine using a composite stator according to claim 1, wherein: the composite stator (1) and the salient pole rotor (2) are both made of ferromagnetic materials and are formed by laminating silicon steel sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010846419.4A CN112039231A (en) | 2020-08-21 | 2020-08-21 | Electro-magnetic doubly salient motor adopting composite stator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010846419.4A CN112039231A (en) | 2020-08-21 | 2020-08-21 | Electro-magnetic doubly salient motor adopting composite stator |
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| CN112039231A true CN112039231A (en) | 2020-12-04 |
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| CN202010846419.4A Pending CN112039231A (en) | 2020-08-21 | 2020-08-21 | Electro-magnetic doubly salient motor adopting composite stator |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000041367A (en) * | 1998-07-23 | 2000-02-08 | Meidensha Corp | Hybrid excitation type synchronous machine |
| CN102035270A (en) * | 2010-12-17 | 2011-04-27 | 南京航空航天大学 | Axial excitation double salient pole motors |
| US20180083497A1 (en) * | 2015-05-29 | 2018-03-22 | Francecol Technology | Homopolar compound-type asynchronous motor |
| CN108649768A (en) * | 2018-06-11 | 2018-10-12 | 中国石油大学(华东) | A kind of stator carries the mixed excited magnetic pass switch motor of pawl pole bypass structure |
| CN109391120A (en) * | 2018-11-13 | 2019-02-26 | 南京工业大学 | A kind of drum type brake electric excitation biconvex electrode linear motor |
| CN110518765A (en) * | 2019-08-30 | 2019-11-29 | 沈阳工业大学 | A kind of claw type stator yoke insertion permanent magnet auxiliary birotor axial direction double salient-pole electric machine |
| CN110601476A (en) * | 2019-09-17 | 2019-12-20 | 淮阴工学院 | Radial magnetic field axial parallel composite motor |
-
2020
- 2020-08-21 CN CN202010846419.4A patent/CN112039231A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000041367A (en) * | 1998-07-23 | 2000-02-08 | Meidensha Corp | Hybrid excitation type synchronous machine |
| CN102035270A (en) * | 2010-12-17 | 2011-04-27 | 南京航空航天大学 | Axial excitation double salient pole motors |
| US20180083497A1 (en) * | 2015-05-29 | 2018-03-22 | Francecol Technology | Homopolar compound-type asynchronous motor |
| CN108649768A (en) * | 2018-06-11 | 2018-10-12 | 中国石油大学(华东) | A kind of stator carries the mixed excited magnetic pass switch motor of pawl pole bypass structure |
| CN109391120A (en) * | 2018-11-13 | 2019-02-26 | 南京工业大学 | A kind of drum type brake electric excitation biconvex electrode linear motor |
| CN110518765A (en) * | 2019-08-30 | 2019-11-29 | 沈阳工业大学 | A kind of claw type stator yoke insertion permanent magnet auxiliary birotor axial direction double salient-pole electric machine |
| CN110601476A (en) * | 2019-09-17 | 2019-12-20 | 淮阴工学院 | Radial magnetic field axial parallel composite motor |
Non-Patent Citations (1)
| Title |
|---|
| 耿伟伟等: "新型并列式混合励磁无刷直流电机结构原理及其磁场调节特性", 《电工技术学报》 * |
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Application publication date: 20201204 |