CN208174507U - Hybrid excitation motor for new energy automobile - Google Patents
Hybrid excitation motor for new energy automobile Download PDFInfo
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- CN208174507U CN208174507U CN201820810892.5U CN201820810892U CN208174507U CN 208174507 U CN208174507 U CN 208174507U CN 201820810892 U CN201820810892 U CN 201820810892U CN 208174507 U CN208174507 U CN 208174507U
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- energy automobile
- magnetic conduction
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- 230000005284 excitation Effects 0.000 title claims abstract description 49
- 238000004804 winding Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 17
- 239000000696 magnetic material Substances 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 3
- 230000005347 demagnetization Effects 0.000 abstract description 2
- 239000011162 core material Substances 0.000 description 46
- 229910052742 iron Inorganic materials 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 5
- 239000002131 composite material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a mix excitation motor for new energy automobile, including the casing and set up rotor core and the stator core in the casing, stator core divide into two parts from top to bottom, and three-phase winding carries out the coiling through upper and lower stator core, sets up the magnetic conduction support around having direct current excitation winding between upper and lower two parts stator core. The utility model discloses be applied to the hybrid excitation motor in new forms of energy driving motor field, except having that the speed governing performance of hybrid excitation motor is good, anti demagnetization ability is strong, material utilization is high, efficient characteristics, the magnetic conduction support that sets up on the stator can effectively reduce the complexity of hybrid excitation motor stator structure, reduces the stator core processing degree of difficulty; the mechanical strength of the magnetic conduction bracket is superior to that of the stator core, so that the risk of deformation of the stator assembly during winding of the three-phase winding can be effectively reduced; when the outer diameter of the magnetic conduction bracket is larger than the outer diameter of the stator, the winding space of the excitation winding can be effectively increased, and therefore the proportion of electric excitation is increased.
Description
Technical field
The utility model relates to a kind of mixed excitation electric machine, in particular to a kind of composite excitation electricity for new-energy automobile
Machine belongs to technical field of motors.
Background technique
Current new-energy automobile driving motor, generally permanent magnet synchronous motor, asynchronous machine and three kinds of switched reluctance machines.
Due to the demand of use environment, to the more demanding of automobile drive electric motor, it is big that driving motor needs to meet instantaneous power, overloads energy
Power is strong, and accelerating ability is good, and speed adjustable range is wide, automobile start high-torque and the demand run at high speed, and within the scope of whole service,
Efficiency optimization, to improve course continuation mileage, and long service life, power density is high, low noise.
Permanent magnet synchronous motor can satisfy the above-mentioned overwhelming majority and require, but since the excitation field of permanent magnet synchronous motor is
Permanent magnet, magnetic field of permanent magnet are difficult to change, and when low speed starts, torque causes motor feels hot big compared with high, electric current is big；In vapour
Complexity is controlled when vehicle high-speed cruising, weak magnetic ability is poor, reduces low efficiency or speed when high-speed cruising；And use rare-earth permanent magnet
Permanent magnet synchronous motor higher cost, there is permanent magnet demagnetization, reduce the reliability of product in when high temperature.
Axial/radial magnetic circuit mixed excitation synchronous motor can effectively solve the problem that the above problem, but the motor of the type is general
It is all directly to place excitation winding again after stator outer ring is directly slotted.In order to increase the space of excitation winding placement, fluting
Cross-sectional area needs sufficiently large.But it, can if the cross-sectional area of slot is excessive since stator core is formed by silicon steel plate stacking
Cause stator core intensity insufficient, when coiling three-phase windings, easily leads to iron core deformation；And the mixed excitation electric machine major diameter of the type
Smaller than needing to be made, i.e. motor is made that " short and stout " is some, if the slot for placing excitation winding is opened wide, can make motor
It is axial to increase, it is unfavorable for playing the optkmal characteristics of the type motor.
Utility model content
For the above-mentioned problems in the prior art, the utility model provides a kind of mixing for new-energy automobile and encourages
Magneto.
The technical solution of the utility model is as follows：
A kind of mixed excitation electric machine for new-energy automobile, including casing and the rotor core being set in casing and
Stator core, the stator core are divide into upper part and lower part, and three-phase windings carry out coiling by upper and lower stator core, upper and lower two
Setting is wound with the magnetic conduction bracket of DC excitation winding between partial stator iron core.
The internal diameter of the magnetic conduction bracket is identical as stator slot bottom circular diameter as a further improvement of the utility model,.
The outer diameter of the magnetic conduction bracket is equal to stator outer diameter as a further improvement of the utility model,.
The outer diameter of the magnetic conduction bracket is greater than stator outer diameter as a further improvement of the utility model,.
The stator core of two parts up and down after the completion of coiling passes through stator magnetic conduction as a further improvement of the utility model,
Ring connection, stator magnetic guiding loop and casing assemble, and form stator module.
The material of the casing is set as permeability magnetic material as a further improvement of the utility model, with stator core
Directly assemble.
The stator core of two parts up and down after the completion of coiling passes through stator magnetic conduction as a further improvement of the utility model,
Ring connection, stator magnetic guiding loop is divide into upper part and lower part to be assembled with stator core, and stator magnetic guiding loop and casing assemble, and forms stator pack
Part.
Material is provided in the magnetic conduction bracket as a further improvement of the utility model, and stator magnetic guiding loop is consistent
Annular magnetic guiding cycle.
The rotor is divide into upper part and lower part as a further improvement of the utility model, and the pole N permanent magnetism is provided on rotor
Body and the pole S permanent magnet, the pole N permanent magnet and the pole S permanent magnet are respectively arranged at two parts up and down of rotor.
The iron core pole staggered row that the permanent magnet Yu rotor core of same polarity are formed as a further improvement of the utility model,
Column.
The beneficial effects of the utility model are as follows：
A magnetic conduction bracket is arranged in the mixed excitation electric machine of the utility model in the stator, encourages in magnetic conduction rack inner wall coiling
Magnetic winding can effectively reduce the mixed complexity for encouraging motor stator structure, reduce stator core difficulty of processing；Magnetic conduction rack mechanical is strong
Degree is better than stator core, effectively increases the intensity of mixed excitation electric machine stator, can effectively reduce stator module in coiling three-phase
The risk deformed when winding；When magnetic conduction bracket outer diameter is greater than stator outer diameter, the space of excitation winding coiling can be effectively improved, from
And improve the ratio of electrical excitation；Stator split settings effectively reduce the difficulty of processing of stator core.
Detailed description of the invention
Fig. 1 is the structure sectional view of the utility model when magnetic conduction bracket outer diameter is identical as stator core outer diameter.
Fig. 2 is the utility model structure sectional view when magnetic conduction bracket outer diameter is greater than stator core outer diameter.
Fig. 3 is the utility model electric machine structure axonometric drawing.
Fig. 4 is magnetic circuit figure when magnetic conduction bracket outer diameter is equal to stator outer diameter.
Fig. 5 is magnetic circuit figure when magnetic conduction bracket outer diameter is greater than stator outer diameter.
It is marked in figure：1- bearing, 2- end cap, 3- casing, the pole 4-N permanent magnet, 5- excitation winding, 6- magnetic conduction bracket, 6-1-
Inner ring, 6-2- upper bracket, 6-3- lower bracket, 7- magnetic pole iron (N), 8- armature spindle, 9- magnetic pole iron (S), 10- three-phase alternating current winding,
The pole 11-S permanent magnet, 12- stator core, 13- stator magnetic guiding loop, 14, rotor core, 15- annular magnetic guiding cycle.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
The utility model provides a kind of mixed excitation electric machine applied to new energy driving motor field, in addition to having mixed encourage
Outside the feature that electric machine speed regulation performance is good, anti-demagnetization capability is strong, stock utilization is high, high-efficient, the magnetic conduction bracket that is arranged on stator
It can effectively reduce the mixed complexity for encouraging motor stator structure, reduce stator core difficulty of processing；And magnetic conduction rack mechanical strength is excellent
In stator core, the risk that stator module is deformed in coiling three-phase windings can effectively reduce；And when magnetic conduction bracket outer diameter is greater than
When stator outer diameter, the space of excitation winding coiling can be effectively improved, to improve the ratio of electrical excitation.
Embodiment one
As shown in Figure 1, Figure 3, stator core 12 is divide into upper part and lower part, between upper and lower two parts stator core place around
There is the magnetic conduction bracket 6 of DC excitation winding 5, three-phase windings 10 carry out coiling by upper and lower iron core, pass through stator after the completion of coiling
Magnetic guiding loop 13 connects, and stator magnetic guiding loop 13 and casing 3 assemble, and forms stator module.Correspondingly, rotor is also classified into two parts, the pole N
Permanent magnet 4 and the pole S permanent magnet 11 are individually positioned in two parts up and down of rotor, as a kind of preferred structure of the present embodiment, together
Rotor core pole (the magnetic pole iron (N) 7 for being overrided to form for punching, being integrated with rotor core 14 between the two panels permanent magnet of grade property
Or magnetic pole iron (S) 9), it can also be made of the preferable soft magnetic materials of magnetic property, i.e.,：The permanent magnet of same polarity is formed with iron core
Iron core pole 7 be staggered.It should be noted that the rotor structure in the utility model be not limited to the present embodiment in above-mentioned act
Example, all stator cores being able to cooperate in the utility model in the prior art realize the rotor structure of composite excitation function, should all
It is included within the scope of protection of this utility model.Rotor core 14 and shaft 8 form rotor assembly after assembling, and shaft 8 is forward and backward
It after end is assembled with bearing 1, is put into the stator module assembled, after cooperating with end cap 2, formation is mixed to encourage motor.
In the present embodiment, the outer diameter of magnetic conduction bracket 6 is equal with 12 outer diameter of stator core, as shown in Figure 1, stator magnetic guiding loop 13
It is assembled for cylindric entirety and stator core 12.Magnetic circuit principle as shown in figure 4, when DC excitation winding 5 be powered when, the magnetic of generation
It is logical to be introduced into 6 inner ring 6-1 of magnetic conduction bracket and entered in stator magnetic guiding loop 13 by the teeth portion of stator core 12, yoke portion, then
By the yoke portion of stator core 12, teeth portion, 6 inner ring 6-1 of magnetic conduction bracket is returned to, forms magnetic loop.One kind as the present embodiment
The internal diameter of preferred structure, magnetic conduction bracket 6 is identical as stator slot bottom circular diameter.
In the present embodiment, i.e., when magnetic conduction bracket outer diameter is identical as stator core outer diameter, stator magnetic guiding loop 13 can be cancelled, by machine
3 material of shell is set as permeability magnetic material, and casing 3 is made to play the role of axial magnetic conduction, directly assembles with stator core.
Embodiment two
The mixed excitation electric machine structure and the structure of embodiment one of the present embodiment are essentially identical, and the main distinction is magnetic conduction branch
The outer diameter of frame 6 is greater than 12 outer diameter of stator core.The part mainly just distinguished below with embodiment one is described in detail, other
Part repeats no more.
As shown in figures 2 and 5, the outer diameter of magnetic conduction bracket 6 is greater than 12 outer diameter of stator core, and an annular is placed in magnetic conduction bracket 6
Magnetic guiding cycle 15, material and stator magnetic guiding loop 13 are consistent.Stator magnetic guiding loop 13 is divide into upper part and lower part to be assembled with stator core 12, is made
The magnetic flux that generates of DC excitation winding 5, be introduced into 6 inner ring 6-1 of magnetic conduction bracket, by the teeth portion of stator core 12, yoke portion,
It enters in stator magnetic guiding loop 13, after the upper bracket 6-2 (or lower bracket 6-3) of magnetic conduction bracket 6, then passes through lower bracket
6-3 (or upper bracket 6-2) is entered in stator magnetic guiding loop 13, using the yoke portion of stator core 12, teeth portion, returns to magnetic conduction bracket
6 inner ring 6-1 forms magnetic loop.
In the present embodiment, i.e., when magnetic conduction bracket outer diameter is greater than stator core outer diameter, annular magnetic guiding cycle 15 can be increased, placed
It is assembled into magnetic conduction bracket 6, then with two-part magnetic guiding loop is divided into, is finally assembled with casing 3, can effectively improve excitation winding
Coiling space, improve weak magnetic ability.
In conclusion stator is in axis the utility model proposes a kind of composite excitation driving motor for new-energy automobile
It is made of upwards identical two parts, is the magnetic conduction bracket for placing excitation winding, the machine of magnetic conduction bracket between upper and lower two parts stator
Tool intensity is better than stator core material and has preferable magnetic property, and internal diameter is identical as stator core slot bottom circular diameter, outside
Diameter can be set greater than or be equal to stator core outer diameter according to the demand of excitation winding；Corresponding rotor is also divided into the axial direction
Two parts, the pole size consistent permanent-magnet pole N, the pole S are individually positioned in upper and lower two parts of rotor, and are staggeredly placed radially,
Meanwhile it being staggeredly placed radially with permanent-magnet pole on two-part rotor with permanent-magnet pole iron pole consistent in length up and down.It is placed in
Magnetic conduction bracket among upper and lower two parts stator can effectively improve instead of the mode directly slotted among stator core
Stator intensity, and reduce the difficulty of processing of stator；When magnetic conduction bracket outer diameter is identical as stator core outer diameter, stator magnetic guiding loop is
It is directly mixed with formation after casing assembly after one, with stator core assembly and encourages motor；When the outer diameter of magnetic conduction bracket is greater than stator iron
When core outer diameter, it can set in the axial direction magnetic guiding loop to upper and lower two parts, then be placed into casing after assembling with stator core,
The coiling space that can effectively improve excitation winding, improves the ratio of electrical excitation.
Claims (10)
1. a kind of mixed excitation electric machine for new-energy automobile including casing and the rotor core being set in casing and is determined
Sub- iron core, it is characterised in that：The stator core is divide into upper part and lower part, three-phase windings by upper and lower stator core carry out around
System, setting is wound with the magnetic conduction bracket of DC excitation winding between upper and lower two parts stator core.
2. a kind of mixed excitation electric machine for new-energy automobile according to claim 1, it is characterised in that：The magnetic conduction
The internal diameter of bracket is identical as stator slot bottom circular diameter.
3. a kind of mixed excitation electric machine for new-energy automobile according to claim 1 or 2, it is characterised in that：It is described
The outer diameter of magnetic conduction bracket is equal to stator outer diameter.
4. a kind of mixed excitation electric machine for new-energy automobile according to claim 1 or 2, it is characterised in that：It is described
The outer diameter of magnetic conduction bracket is greater than stator outer diameter.
5. a kind of mixed excitation electric machine for new-energy automobile according to claim 3, it is characterised in that：Coiling is completed
The stator core of two parts up and down afterwards is connected by stator magnetic guiding loop, and stator magnetic guiding loop and casing assemble, and forms stator module.
6. a kind of mixed excitation electric machine for new-energy automobile according to claim 3, it is characterised in that：The casing
Material be set as permeability magnetic material, directly assembled with stator core.
7. a kind of mixed excitation electric machine for new-energy automobile according to claim 4, it is characterised in that：Coiling is completed
The stator core of two parts up and down afterwards is connected by stator magnetic guiding loop, and stator magnetic guiding loop is divide into upper part and lower part to be filled with stator core
Match, stator magnetic guiding loop and casing assemble, and form stator module.
8. a kind of mixed excitation electric machine for new-energy automobile according to claim 7, it is characterised in that：The magnetic conduction
Material and the consistent annular magnetic guiding cycle of stator magnetic guiding loop are provided in bracket.
9. a kind of mixed excitation electric machine for new-energy automobile according to claim 1, it is characterised in that：The rotor
It is divide into upper part and lower part, the pole N permanent magnet and the pole S permanent magnet, the pole N permanent magnet and the pole S permanent magnet difference is provided on rotor
It is set to two parts up and down of rotor.
10. a kind of mixed excitation electric machine for new-energy automobile according to claim 9, it is characterised in that：Same polarity
The iron core pole that is formed with rotor core of permanent magnet be staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820810892.5U CN208174507U (en) | 2018-05-29 | 2018-05-29 | Hybrid excitation motor for new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820810892.5U CN208174507U (en) | 2018-05-29 | 2018-05-29 | Hybrid excitation motor for new energy automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208174507U true CN208174507U (en) | 2018-11-30 |
Family
ID=64365023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820810892.5U Active CN208174507U (en) | 2018-05-29 | 2018-05-29 | Hybrid excitation motor for new energy automobile |
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| Country | Link |
|---|---|
| CN (1) | CN208174507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429421A (en) * | 2018-05-29 | 2018-08-21 | 珠海格力电器股份有限公司 | Hybrid excitation motor for new energy automobile |
-
2018
- 2018-05-29 CN CN201820810892.5U patent/CN208174507U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108429421A (en) * | 2018-05-29 | 2018-08-21 | 珠海格力电器股份有限公司 | Hybrid excitation motor for new energy automobile |
| CN108429421B (en) * | 2018-05-29 | 2024-04-30 | 珠海格力电器股份有限公司 | Mixed excitation motor for new energy automobile |
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