CN219227298U - Stator structure of permanent magnet synchronous motor and vehicle - Google Patents
Stator structure of permanent magnet synchronous motor and vehicle Download PDFInfo
- Publication number
- CN219227298U CN219227298U CN202320187793.7U CN202320187793U CN219227298U CN 219227298 U CN219227298 U CN 219227298U CN 202320187793 U CN202320187793 U CN 202320187793U CN 219227298 U CN219227298 U CN 219227298U
- Authority
- CN
- China
- Prior art keywords
- stator
- permanent magnet
- mounting
- cooling water
- synchronous motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
The application is directed to a stator structure of a permanent magnet synchronous motor and a vehicle, the structure includes: the stator is provided with a first mounting groove penetrating through two ends, and the first mounting groove is used for mounting the rotor; the stator is further provided with a plurality of second mounting grooves, the plurality of second mounting grooves are arranged around the first mounting groove, coil fixing pieces are arranged in each second mounting groove, coils are arranged in the coil fixing pieces, and the coil fixing pieces are used for fixing the coils; the permanent magnet mounting grooves penetrate through two ends of the stator and are arranged around the rotor, and the permanent magnet mounting grooves are used for mounting permanent magnets. The application aims to solve the problems that the manufacturing and maintenance cost is increased, and the motor performance is reduced due to the generation of an air gap because the traditional rotor permanent magnet motor structure is provided with an additional fixing structure for overcoming the centrifugal force.
Description
Technical Field
The embodiment of the application relates to the technical field of automobiles, in particular to a stator structure of a permanent magnet synchronous motor and a vehicle.
Background
Along with popularization and application of new energy automobile motors, permanent magnet synchronous motors are increasingly receiving attention of the market, and are composed of permanent magnets, motor rotors and motor stators, but most of the permanent magnet synchronous motors on the market at present are designed by the permanent magnets on the rotors, and the rotor permanent magnet synchronous motors generally need to be reinforced to overcome the centrifugal force of the rotors during rotation.
The conventional rotor permanent magnet motor structure generates centrifugal force when the rotor runs at high speed, and the centrifugal force needs to be overcome by installing an additional fixing structure, so that the manufacturing and maintenance cost is increased, and an air gap is generated due to the additional fixing structure, so that the motor performance is reduced.
Disclosure of Invention
The embodiment of the application provides a stator structure of a permanent magnet synchronous motor and a vehicle, and aims to solve the problems that the traditional rotor permanent magnet motor structure is provided with an additional fixing structure for overcoming centrifugal force, the manufacturing and maintenance cost is increased, and the motor performance is reduced due to the generation of an air gap.
A first aspect of embodiments of the present application provides a stator structure of a permanent magnet synchronous motor, the structure including:
the stator is provided with a first mounting groove penetrating through two ends, and the first mounting groove is used for mounting the rotor;
the stator is further provided with a plurality of second mounting grooves, the plurality of second mounting grooves are arranged around the first mounting groove, coil fixing pieces are arranged in each second mounting groove, coils are arranged in the coil fixing pieces, and the coil fixing pieces are used for fixing the coils;
the permanent magnet mounting grooves penetrate through two ends of the stator and are arranged around the rotor, and the permanent magnet mounting grooves are used for mounting permanent magnets.
Optionally, the plurality of second mounting slots penetrate through two ends of the stator, and the coil fixing member includes:
the fixed block is provided with a plurality of coil holes, the coil holes are distributed along the length direction of the fixed block, the straight lines of the coils Kong Liancheng are arranged in the radial direction of the stator, and the coils are arranged in the coil holes.
Optionally, an exhaust hole is formed in the end face of the stator, the exhaust hole is communicated with the second mounting groove and is located at the end portion of the second mounting groove, and the exhaust hole is used for exhausting high-temperature gas generated by the exhaust hole.
Optionally, the shape of the exhaust hole is semicircular.
Optionally, the number of the exhaust holes is two, the two exhaust holes are respectively located at two ends of the second installation groove, and the two exhaust holes are symmetrically arranged by taking the center of the fixed block as a symmetry point center.
Optionally, the structure further comprises:
the cooling assembly comprises a cooling water channel, the cooling water channel is arranged on the outer side face of the stator and is in contact with the outer side face of the stator, and cooling water is supplied to the cooling water channel for circulation so as to cool the stator.
Optionally, the cooling water channel surrounds the lateral surface of stator, the both ends of cooling water channel are water inlet and delivery port respectively, the inlet supplies the cooling water inflow, the outlet supplies the cooling water outflow to make cooling water with the lateral surface heat exchange of stator.
A second aspect of the embodiments of the present application provides a vehicle, including a stator structure of a permanent magnet synchronous motor as provided in the first aspect of the embodiments of the present application.
Adopt this application to provide a permanent magnet synchronous motor's stator structure and vehicle has following advantage:
according to the first aspect, the first mounting groove arranged in the stator is used for mounting the rotor, so that the rotor is embedded in the stator, wherein the stator is provided with the permanent magnet mounting groove for mounting the permanent magnet, and the permanent magnet is arranged around the rotor.
On the other hand, permanent magnet in this application installs on the stator, can realize the cooling to the permanent magnet when cooling down the stator, has solved the permanent magnet setting and has led to being difficult for carrying out the problem of cooling down to it in the rotor.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a stator structure of a permanent magnet synchronous motor according to an embodiment of the present disclosure;
FIG. 2 is an enlarged schematic view of a portion A of FIG. 1;
fig. 3 is a schematic structural diagram of a cooling water channel in a stator structure of a permanent magnet synchronous motor according to an embodiment of the present disclosure;
reference numerals: 1. a stator; 2. a first mounting groove; 3. a second mounting groove; 4. a permanent magnet mounting groove; 5. a fixed block; 6. a coil hole; 7. an exhaust hole; 8. and cooling the water channel.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
Along with popularization and application of new energy automobile motors, permanent magnet synchronous motors are increasingly receiving attention of the market, and are composed of permanent magnets, motor rotors and motor stators, but most of the permanent magnet synchronous motors on the market at present are designed by the permanent magnets on the rotors, and the rotor permanent magnet synchronous motors generally need to be reinforced to overcome the centrifugal force of the rotors during rotation.
The conventional rotor permanent magnet motor structure generates centrifugal force when the rotor runs at high speed, and the centrifugal force needs to be overcome by installing an additional fixing structure, so that the manufacturing and maintenance cost is increased, and an air gap is generated due to the additional fixing structure, so that the motor performance is reduced.
In view of this, the present application provides a stator structure of a permanent magnet synchronous motor and a vehicle, and aims to solve the problems that the conventional rotor permanent magnet motor structure is provided with an additional fixing structure to overcome centrifugal force, the manufacturing and maintenance costs are increased, and an air gap is generated to reduce the motor performance.
A stator structure of a permanent magnet synchronous motor, referring to fig. 1 and 2, the structure comprising:
the stator 1 is provided with a first mounting groove 2 penetrating through two ends, and the first mounting groove 2 is used for mounting a rotor;
the stator 1 is further provided with a plurality of second mounting grooves 3, the plurality of second mounting grooves 3 are arranged around the first mounting groove 2, coil fixing pieces are arranged in each second mounting groove 3, coils are arranged in the coil fixing pieces, and the coil fixing pieces are used for fixing the coils;
the permanent magnet mounting grooves 4 penetrate through two ends of the stator 1 and are formed around the rotor, and the permanent magnet mounting grooves 4 are used for mounting permanent magnets.
Through the arrangement, the first mounting groove arranged in the stator is used for mounting the rotor, so that the rotor is embedded in the stator, wherein the stator is provided with the permanent magnet mounting groove for mounting the permanent magnet, and the permanent magnet surrounds the rotor;
on the other hand, permanent magnet in this application installs on stator 1, can realize the cooling to the permanent magnet when cooling down stator 1, has solved the permanent magnet and has set up the problem that leads to being difficult for cooling down it in the rotor.
In the embodiment of the present application, referring to fig. 1 and 2, the stator 1 is cylindrical, and has a specification size of 150mm in length and 90mm in radius. The first mounting groove 2 that sets up in the stator 1 runs through two terminal surfaces of stator 1, and first mounting groove 2 is used for installing the rotor, compares prior art, and the rotor in this application sets up in stator 1, and the permanent magnet setting is in the permanent magnet mounting groove 4 that sets up in stator 1 to make excitation field and armature winding all be located stator 1, the modulation effect through the excitation source of stator 1 and rotor, the salient pole of permanent magnet makes the flux linkage in the winding take place the mutation, thereby produces induced electromotive force and electromagnetic torque.
In this application embodiment, referring to fig. 1 and 2, a first mounting groove 2 is formed in a stator 1, a rotor is disposed in the first mounting groove 2, and compared with a traditional permanent magnet and a motor, the design reduces electromagnetic air gap, can conveniently directly cool the rotor and the permanent magnet, and prolongs the service life of the motor.
In the present embodiment, the first mounting groove 2 is a cylindrical hole with a radius of 45 mm. The rotor is adapted to its dimensions.
In the embodiment of the present application, referring to fig. 1 and 2, the number of the permanent magnet mounting slots 4 is four, the four permanent magnet mounting slots 4 are all opened on the stator 1, and the permanent magnet mounting slots 4 penetrate through two end faces of the stator 1. Four permanent magnet mounting slots 4 are provided around the radial direction of the stator 1.
In the embodiment of the present application, referring to fig. 1 and 2, the plurality of second mounting slots 3 penetrate through both ends of the stator 1, and the coil fixing member includes:
the fixed block 5, a plurality of coil holes 6 have been seted up on the fixed block 5, a plurality of coil holes 6 follow the length direction of fixed block 5 arranges, and a plurality of the straight line that coil holes 6 link becomes is in on the radial of stator 1, the coil is located in the coil hole 6.
Through the arrangement, the fixed block 5 is arranged in the second mounting groove 3, the coil holes 6 formed in the fixed block 5 are used for fixing coils, and the space in the stator 1 can be effectively utilized through the arrangement of the fixed block 5 which is arranged around the stator 1 and the plurality of coil holes 6 formed in the fixed block 5, more coils are arranged, and therefore the winding area of the coils is increased.
In this embodiment, referring to fig. 1 and 2, the number of the second mounting grooves 3 is 48, and 48 second mounting grooves 3 are disposed around the radial direction of the stator 1, the second mounting grooves 3 are rectangular grooves, and the fixing blocks 5 mounted in the second mounting grooves 3 are rectangular blocks adapted to the shape and specification of the second mounting grooves 3. The number of coil holes 6 arranged on the fixed block 5 is four, and the four coil holes 6 are distributed along the length direction of the fixed block 5, wherein coils are arranged in each coil hole 6.
Wherein the specification of the second mounting groove 3 is a rectangular hole with the length of 20mm and the width of 5 mm.
The coil hole 6 is rectangular in shape, and the coil arranged in the coil hole 6 and matched with the coil hole 6 in shape is a flat coil. The space within the stator 1 is effectively utilized.
In the embodiment of the present application, referring to fig. 1 and 2, a stator 1 slot (not shown in the drawings) for mounting a stator 1 is a circular hole, the size of which is adapted to that of the stator 1, and the circular stator 1 slot has no sharp edges, so that an air gap can be effectively reduced, thereby improving electromagnetic noise.
In this embodiment, referring to fig. 1 and 2, an air vent 7 is formed on an end surface of the stator 1, the air vent 7 is communicated with the second mounting groove 3 and is located at an end portion of the second mounting groove 3, and the air vent 7 is used for exhausting generated high-temperature gas.
Through the arrangement, the vent hole 7 can discharge high-temperature gas generated during motor rotation, and is beneficial to motor cooling.
In this embodiment, referring to fig. 1 and 2, the shape of the exhaust hole 7 is a semicircle.
Through the arrangement, the exhaust hole 7 is semicircular, the semicircular design without edges and corners can reduce the magnetic loss of the stator 1, copper wires in windings can be reduced, resistance and copper loss are reduced, the copper consumption is small, and the effect of saving cost is achieved.
In this embodiment, referring to fig. 1 and 2, the number of the exhaust holes 7 is two, and the two exhaust holes 7 are respectively located at two ends of the second installation groove 3, and are symmetrically arranged with the center of the fixing block 5 as a symmetry point center.
Through the above arrangement, the two exhaust holes 7 respectively located at both ends of the second installation groove 3 enhance the exhaust capability of the high temperature gas, enhancing the cooling effect.
In an embodiment of the present application, referring to fig. 3, the structure further includes:
the cooling assembly comprises a cooling water channel 8, wherein the cooling water channel 8 is arranged on the outer side surface of the stator 1 and is in contact with the outer side surface of the stator 1, and cooling water is supplied to the cooling water channel 8 for circulation so as to cool the stator 1.
In this embodiment of the present application, the cooling water channel 8 surrounds the outer side surface of the stator 1, two ends of the cooling water channel 8 are respectively a water inlet and a water outlet, the water inlet is provided with cooling water inflow, and the water outlet is provided with cooling water outflow, so that the cooling water exchanges heat with the outer side surface of the stator 1.
Through the arrangement, the cooling water channel 8 is wound around the outer side surface of the stator 1, and the cooling water channel 8 is in contact with the outer side surface of the stator 1, so that heat of the outer side surface of the stator 1 can be absorbed, and a cooling effect is achieved. The design can cool the stator 1 more conveniently, thereby realizing the cooling of the permanent magnet arranged in the stator 1, and better solving the problem of easy temperature rise of the permanent magnet in the prior art.
Based on the same inventive concept, another embodiment of the present application provides a vehicle comprising the stator 1 mechanism of the permanent magnet synchronous motor.
Overall, the present application has the following advantages:
the first mounting groove arranged in the stator is used for mounting the rotor, so that the rotor is embedded in the stator, wherein the stator is provided with the permanent magnet mounting groove for mounting the permanent magnet, and the permanent magnet is arranged around the rotor;
on the other hand, permanent magnet in this application installs on stator 1, can realize the cooling to the permanent magnet when cooling down stator 1, has solved the permanent magnet and has set up the problem that leads to being difficult for cooling down it in the rotor.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
It should also be noted that, in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, but do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Moreover, relational terms such as "first" and "second" may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, or order, and without necessarily being construed as indicating or implying any relative importance. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or terminal device comprising the element.
The foregoing has outlined rather broadly the more detailed description of the present application, and the detailed description of the principles and embodiments herein may be better understood as being a limitation on the present application. Also, various modifications in the details and application scope may be made by those skilled in the art in light of this disclosure, and all such modifications and variations are not required to be exhaustive or are intended to be within the scope of the disclosure.
Claims (8)
1. A stator structure of a permanent magnet synchronous motor, the structure comprising:
the stator (1), the stator (1) is provided with a first mounting groove (2) penetrating through two ends, and the first mounting groove (2) is used for mounting a rotor;
a plurality of second mounting grooves (3) are further formed in the stator (1), the plurality of second mounting grooves (3) are arranged around the first mounting groove (2), coil fixing pieces are arranged in each second mounting groove (3), coils are arranged in the coil fixing pieces, and the coil fixing pieces are used for fixing the coils;
the permanent magnet installation grooves (4) penetrate through two ends of the stator (1) and are arranged around the rotor, and the permanent magnet installation grooves (4) are used for installing permanent magnets.
2. A stator structure of a permanent magnet synchronous motor according to claim 1, characterized in that the plurality of second mounting slots (3) penetrate through both ends of the stator (1), the coil fixing member comprising:
the stator comprises a fixed block (5), wherein a plurality of coil holes (6) are formed in the fixed block (5), the coil holes (6) are distributed along the length direction of the fixed block (5), the coil holes (6) are connected into a straight line in the radial direction of the stator (1), and the coil is arranged in the coil holes (6).
3. The stator structure of a permanent magnet synchronous motor according to claim 2, wherein an exhaust hole (7) is formed in an end face of the stator (1), the exhaust hole (7) is communicated with the second installation groove (3) and is located at an end portion of the second installation groove (3), and the exhaust hole (7) is used for exhausting generated high-temperature gas.
4. A stator structure of a permanent magnet synchronous motor according to claim 3, characterized in that the vent holes (7) are semi-circular in shape.
5. A stator structure of a permanent magnet synchronous motor according to claim 3, wherein the number of the exhaust holes (7) is two, the two exhaust holes (7) are respectively positioned at two ends of the second installation groove (3), and the two exhaust holes are arranged symmetrically with the center of the fixed block (5) as a symmetry point.
6. The stator structure of a permanent magnet synchronous motor according to claim 1, characterized in that the structure further comprises:
the cooling assembly comprises a cooling water channel (8), wherein the cooling water channel (8) is arranged on the outer side face of the stator (1) and is in contact with the outer side face of the stator (1), and cooling water is supplied to the cooling water channel (8) for circulation so as to cool the stator (1).
7. The stator structure of a permanent magnet synchronous motor according to claim 6, wherein the cooling water channel (8) is arranged around the outer side surface of the stator (1), two ends of the cooling water channel (8) are respectively provided with a water inlet and a water outlet, the water inlet is used for flowing in the cooling water, and the water outlet is used for flowing out the cooling water so as to enable the cooling water to exchange heat with the outer side surface of the stator (1).
8. A vehicle, characterized in that it comprises a stator structure of a permanent magnet synchronous motor according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320187793.7U CN219227298U (en) | 2023-02-10 | 2023-02-10 | Stator structure of permanent magnet synchronous motor and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320187793.7U CN219227298U (en) | 2023-02-10 | 2023-02-10 | Stator structure of permanent magnet synchronous motor and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219227298U true CN219227298U (en) | 2023-06-20 |
Family
ID=86747666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320187793.7U Active CN219227298U (en) | 2023-02-10 | 2023-02-10 | Stator structure of permanent magnet synchronous motor and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219227298U (en) |
-
2023
- 2023-02-10 CN CN202320187793.7U patent/CN219227298U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105814779A (en) | Embedded permanent magnet-type rotating electrical machine | |
| WO2017202316A1 (en) | Double-antipode permanent magnet synchronous motor and electric vehicle | |
| CN112383191B (en) | Self-fan cold axial flux motor with external centrifugal fan | |
| CN104734422A (en) | Novel permanent magnet motor | |
| KR101098841B1 (en) | Electric motor having complex cooling casing | |
| CN219227298U (en) | Stator structure of permanent magnet synchronous motor and vehicle | |
| EP1415383A1 (en) | Brushless motor and electric appliance or vehicle equipped with the same | |
| CN112491198B (en) | Self-fan-cooling axial flux motor of hybrid integrated centrifugal fan and axial flow fan | |
| CN107947417A (en) | A kind of heat-dissipating structure of motor stator | |
| WO2017202319A1 (en) | Permanent magnet synchronous motor and electric vehicle | |
| CN209389828U (en) | A kind of external rotor brushless hollow-cup motor | |
| CN103124127A (en) | Shafting-free outer rotor permanent-magnet synchronous motor with stator water-cooling structure | |
| CN108110914B (en) | Stator core and motor | |
| CN113964966B (en) | Stator assembly, manufacturing method thereof and axial flux motor | |
| CN112865376B (en) | Integrated damping winding, rotor and motor | |
| CN115085430A (en) | Electric machine | |
| JP6890651B1 (en) | Rotating machine | |
| CN108599406B (en) | Single-phase brushless DC motor | |
| CN207968116U (en) | A kind of heat-dissipating structure of motor stator | |
| CN112383173B (en) | Permanent magnet synchronous motor with rotor cooling structure | |
| CN212518555U (en) | Permanent magnet synchronous motor stator | |
| CN206834933U (en) | A kind of switch reluctance machine rotor with fan leaf | |
| CN219999162U (en) | Oil-cooled motor | |
| CN216981720U (en) | Cross flow fan and air conditioner | |
| CN218997784U (en) | New energy motor stator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |