CN216672703U - Double-row surface-mounted rotor structure of permanent magnet synchronous motor - Google Patents
Double-row surface-mounted rotor structure of permanent magnet synchronous motor Download PDFInfo
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- CN216672703U CN216672703U CN202122997419.7U CN202122997419U CN216672703U CN 216672703 U CN216672703 U CN 216672703U CN 202122997419 U CN202122997419 U CN 202122997419U CN 216672703 U CN216672703 U CN 216672703U
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- 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
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Abstract
The invention discloses a double-row surface-mounted rotor structure of a permanent magnet synchronous motor, and belongs to the technical field of permanent magnet synchronous motors. The double-row surface-mounted rotor structure comprises a rotor support (2), two rows of symmetrical magnetic steel baffles (1) uniformly distributed on the rotor support (2), and one row of magnetic steels (6) uniformly distributed on the rotor support (2), wherein the two rows of magnetic steel baffles (1) and the one row of magnetic steels (6) are sequentially arranged on the rotor support (2) in a staggered manner. Compared with the prior art, the invention has the characteristics of simple structure, convenient installation, reliable performance and the like.
Description
Technical Field
The invention belongs to the technical field of permanent magnet synchronous motors, and particularly belongs to a double-row surface-mounted rotor structure for a permanent magnet synchronous motor.
Background
In the prior art, when a permanent magnet motor rotor adopts a surface-mounted structure, three mounting modes of arranging a magnetic steel structure in a dovetail groove, directly bonding the magnetic steel on the surface of a rotor core and tightly fastening the magnetic steel on the surface of the rotor core after the magnetic steel is punched are generally adopted. Fig. 1A, fig. 1B, fig. 1C, fig. 1D is a schematic diagram of using the dovetail to set up the magnet steel, dovetail seat 5 on rotor core 4 has set gradually magnet steel 6 each other, dovetail seat 5 of this kind of structure mounting mode is too little, the dovetail seat 5 of equipartition is made the degree of difficulty big on rotor core 4, rotor core 4 also can be called rotor spider, reduce the mould life-span easily during processing and must increase manufacturing cost, increase in order to guarantee production dovetail seat 5, can cause the increase of magnetic leakage and extravagant material, must also increase permanent magnet synchronous motor's cost.
The direct magnet steel that pastes at rotor core surface mounting mode is that directly paste the magnet steel on rotor core surface, and the magnet steel adopts the anaerobism sticky problem that drops of magnet steel appears easily on rotor core surface in the course of the work, and is not good with magnet steel evenly distributed on rotor core. After the magnetic steel is punched, the magnetic steel is tightly punched on the surface of the rotor core, and then the magnetic steel is tightly punched on a hole corresponding to the surface of the iron core, the surface of the magnetic steel can be damaged by naked eyes due to punching, and the damage near the magnetic steel hole can be caused due to installation problems in the process of installing screws, so that in the operation process of the permanent magnet synchronous motor, the damage probability of the magnetic steel can be increased due to the action of external force, and finally the problem that the magnetic steel drops can also be generated.
Disclosure of Invention
In order to effectively solve the technical problems, the invention provides a magnetic steel baffle of a permanent magnet synchronous motor rotor.
The invention discloses a double-row surface-mounted rotor structure of a permanent magnet synchronous motor, which is characterized by comprising a rotor support, two rows of symmetrical magnetic steel baffles uniformly distributed on the rotor support, and one row of magnetic steels uniformly distributed on the rotor support, wherein the two rows of magnetic steel baffles and the one row of magnetic steels are sequentially arranged on the rotor support in a staggered manner, wherein:
any two adjacent magnetic steels on any row fasten the same magnetic steel together, any one magnetic steel on any row is in contact with two adjacent magnetic steel baffles, and any one magnetic steel baffle is in contact with two adjacent magnetic steels;
any one magnetic steel baffle on any one row is provided with another magnetic steel baffle which is symmetrical with the magnetic steel baffle and arranged on the other row on the rotor support, and the two magnetic steel baffles on the two rows act on the same magnetic steel together and symmetrically.
According to the double-row surface-mounted rotor structure, preferably, the baffle dovetail groove seat on the magnetic steel baffle is connected with the baffle splicing base; magnetic steel side surface supporting groove seats are symmetrically arranged on two sides of the baffle dovetail groove seat, and magnetic steel top surface supporting groove seats are symmetrically arranged on two sides of the baffle dovetail groove seat; the two sides of the baffle splicing base are respectively provided with a first splicing base and a second splicing base.
According to above biserial table pastes rotor structure, preferably, arbitrary list arbitrary any on the magnet steel baffle first concatenation base with rather than adjacent on the magnet steel baffle the second concatenation base cooperatees, the magnet steel baffle the second concatenation base with rather than adjacent on the magnet steel baffle first concatenation base cooperatees.
According to the double-row surface-mounted rotor structure, preferably, the magnetic steel baffle is provided with a first splicing base mounting hole and a second splicing base mounting hole; any one of the first splicing pedestal mounting holes on the magnetic steel baffle plate in any one column are matched with the second splicing pedestal mounting holes on the magnetic steel baffle plate adjacent to the first splicing pedestal mounting holes, and the second splicing pedestal mounting holes on the magnetic steel baffle plate are matched with the first splicing pedestal mounting holes on the magnetic steel baffle plate adjacent to the second splicing pedestal mounting holes.
According to the double-row surface-mounted rotor structure, preferably, axial fastening connecting pieces are arranged between the first splicing base mounting hole and the second splicing base mounting hole on the magnetic steel baffle plate and the support axial connecting hole on the rotor support.
According to above biserial table pastes rotor structure, preferably, any magnet steel side support groove seat or magnet steel top surface support groove seat on the magnet steel baffle all with one the magnet steel contacts.
According to the double-row surface-mounted rotor structure, preferably, the magnetic steel top surface supporting groove seats on the two sides of the baffle dovetail groove seat are symmetrical inclined surfaces, and the inclination of the magnetic steel top surface supporting groove seats on the two sides of the baffle dovetail groove seat is smaller than that of the magnetic steel side surface supporting groove seats on the two sides of the baffle dovetail groove seat; the magnetic steel side surface supporting groove seats on the two sides of the baffle dovetail groove seat are symmetrical inclined planes and are integrally in an inverted trapezoid shape.
According to the double-row surface-mounted rotor structure, preferably, dovetail groove seat mounting holes are formed in the baffle dovetail groove seat of the magnetic steel baffle plate, and support radial connecting holes corresponding to the dovetail groove seat mounting holes are uniformly formed in the rotor support; and a radial fastening connecting piece is arranged between the dovetail groove seat mounting hole and the bracket radial connecting hole.
According to the double-row surface-mounted rotor structure, preferably, any one of the magnetic steels on the rotor support is fastened by the four magnetic steel baffles in contact with the magnetic steel.
According to above biserial table pastes rotor structure, preferred, the spider links to each other with the pivot and sets up, the spider with the pivot passes through shaft hole interference fit and connects or the key-type connection.
Compared with the prior art, the invention has the characteristics of simple structure, convenient installation, reliable performance, high cost performance and the like; the technical scheme of the invention effectively overcomes the defects of three mounting modes of directly sticking the magnetic steel on the surface of the rotor core and tightly fastening the magnetic steel on the surface of the rotor core after punching.
Drawings
FIG. 1A is a schematic view of a permanent magnet synchronous motor rotor in the prior art;
FIG. 1B is a schematic view I of the installation of magnetic steel on a permanent magnet synchronous motor rotor in the prior art;
FIG. 1C is a schematic diagram of mounting magnetic steel on a rotor of a permanent magnet synchronous motor in the prior art;
FIG. 1D is a schematic view showing the installation of magnetic steel on a rotor of a permanent magnet synchronous motor in the prior art;
FIG. 2A is a first schematic structural diagram of a magnetic steel baffle of the present invention;
FIG. 2B is a schematic structural diagram II of the magnetic steel baffle of the present invention;
FIG. 2C is a third schematic structural view of the magnetic steel baffle of the present invention;
FIG. 2D is a fourth schematic structural view of the magnetic steel baffle of the present invention;
FIG. 2E is a schematic structural diagram of a magnetic steel baffle plate of the present invention;
FIG. 2F is a sixth schematic structural view of the magnetic steel baffle of the present invention;
FIG. 3A is a first schematic structural view of the magnetic steel baffle with the heat sink of the present invention;
FIG. 3B is a schematic structural diagram of a magnetic steel baffle with heat dissipation fins according to the present invention;
FIG. 3C is a third schematic structural view of the magnetic steel baffle with heat sink of the present invention;
FIG. 3D is a fourth schematic structural view of the magnetic steel baffle with the heat sink of the present invention;
FIG. 3E is a schematic structural diagram of a magnetic steel baffle with heat dissipation fins according to the present invention;
FIG. 3F is a sixth schematic structural view of the magnetic steel baffle with fins of the present invention;
FIG. 4A is a schematic view I of the magnetic steel baffle and the magnetic steel mounted on the rotor frame;
FIG. 4B is a schematic view of a second embodiment of the present invention showing the mounting of magnetic steel baffles and magnetic steels on the rotor frame;
FIG. 4C is a schematic view of a third embodiment of the present invention showing the mounting of the magnetic steel baffle and magnetic steel on the rotor frame;
FIG. 4D is a fourth schematic view of the magnetic steel baffle and the magnetic steel mounted on the rotor frame of the present invention;
FIG. 4E is a schematic view showing the first installation of the magnetic steel baffle with the heat sink and the magnetic steel on the rotor bracket according to the present invention;
FIG. 4F is a schematic view of a second embodiment of the present invention showing the mounting of the magnetic steel baffle with heat sink and the magnetic steel on the rotor frame;
FIG. 4G is a schematic view showing the mounting of the magnetic steel baffle with the heat sink and the magnetic steel on the rotor frame according to the present invention;
FIG. 4H is a fourth schematic view of the magnetic steel baffle with heat sink and the installation of the magnetic steel on the rotor bracket of the present invention;
FIG. 4I is a schematic view I of the double-row magnetic steel baffle with cooling fins and the installation of magnetic steel on a rotor bracket;
FIG. 4J is a schematic view of a double-row magnetic steel baffle with cooling fins and the installation of magnetic steel on a rotor bracket;
FIG. 5A is a first schematic view of a rotor spider according to the present invention;
FIG. 5B is a schematic structural view of a rotor spider according to the present invention;
FIG. 6A is a first structural schematic view of a magnetic steel baffle plate with a dovetail groove seat mounting hole according to the present invention;
FIG. 6B is a second structural schematic view of the magnetic steel baffle with dovetail groove seat mounting holes of the present invention;
FIG. 6C is a third schematic structural view of a magnetic steel baffle plate with a dovetail groove seat mounting hole according to the present invention;
FIG. 6D is a fourth schematic structural view of the magnetic steel baffle with dovetail slot mount holes of the present invention;
FIG. 6E is a fifth schematic view of the structure of the magnetic steel baffle plate with the dovetail groove seat mounting hole of the invention;
FIG. 6F is a sixth schematic structural view of a magnetic steel baffle plate with dovetail slot seat mounting holes of the present invention;
FIG. 7A is a schematic view I of the installation of a magnetic steel baffle plate with a dovetail groove seat installation hole and magnetic steel on a rotor bracket of the invention;
FIG. 7B is a second schematic view of the magnetic steel baffle plate with dovetail groove mounting holes and the magnetic steel mounted on the rotor bracket according to the present invention;
FIG. 7C is a third schematic view of the magnetic steel baffle with dovetail slot mount holes and the mounting of magnetic steel on the rotor spider of the present invention;
FIG. 7D is a fourth schematic view of the magnetic steel baffle with dovetail slot mount holes and the mounting of magnetic steel on the rotor spider of the present invention;
FIG. 7E is a fifth schematic view of the magnetic steel baffle with dovetail slot mount holes and the mounting of magnetic steel on the rotor spider of the present invention;
FIG. 7F is a sixth schematic view of the mounting of the magnetic steel baffle plate with the dovetail groove seat mounting hole and the magnetic steel on the rotor bracket of the present invention;
FIG. 7G is a seventh schematic view showing the installation of the magnetic steel baffle plate with the dovetail groove seat mounting hole and the magnetic steel on the rotor spider according to the present invention;
FIG. 7H is an eighth schematic view of the installation of the magnetic steel baffle plate with the dovetail groove seat mounting hole and the magnetic steel on the rotor bracket of the invention;
FIG. 8A is a schematic cross-sectional view of a magnetic steel baffle and magnetic steel mounted on a rotor spider in accordance with the present invention;
fig. 8B is a partially enlarged view of fig. 8A.
Detailed Description
Fig. 2A, fig. 2B, fig. 2C, fig. 2D, fig. 2E, and fig. 2F are schematic structural diagrams of the magnetic steel baffle of the non-heat-dissipation sheet of the present invention, the magnetic steel baffle 1 of the present invention includes a baffle dovetail groove seat 101 and a baffle splicing base 102, the baffle dovetail groove seat 101 and the baffle splicing base 102 are connected together, wherein: the two sides of the baffle dovetail groove seat 101 are symmetrically provided with a magnetic steel side surface supporting groove seat 1011 and a magnetic steel top surface supporting groove seat 1012; on either side of the damper splice base 102 are a first splice base 1021 and a second splice base 1022.
The magnetic steel side supporting groove seats 1011 on the two sides of the baffle dovetail groove seat 101 are symmetrical inclined planes and integrally form an inverted trapezoid, after the magnetic steel 6 and the magnetic steel baffle plate 1 are installed on the rotor support 2, the two side surfaces of the magnetic steel 6 can be respectively contacted with the corresponding magnetic steel side supporting groove seats 1011 on the baffle dovetail groove seats 101 of the two adjacent magnetic steel baffle plates 1.
The magnetic steel top surface supporting groove seats 1012 on the two sides of the baffle dovetail groove seat 101 are symmetrical inclined surfaces, the inclination of the magnetic steel top surface supporting groove seats 1012 on the two sides of the baffle dovetail groove seat 101 is smaller than that of the magnetic steel side surface supporting groove seats 1011 on the two sides of the baffle dovetail groove seat 101, after the magnetic steel 6 and the magnetic steel baffle plate 1 are installed on the rotor bracket 2, the top surface of the magnetic steel 6 can be in contact with the corresponding magnetic steel top surface supporting groove seats 1012 on the baffle dovetail groove seats 101 of the two adjacent magnetic steel baffle plates 1. The baffle dovetail mount 101 is perpendicular to the baffle splice mount 102.
A first splicing base mounting hole 10211 is arranged on the first splicing base 1021, and a second splicing base mounting hole 10221 is arranged on the second splicing base 1022. After all the magnetic steel 6 and the magnetic steel baffles 1 are installed on the rotor support 2, the first splicing base installation hole 10211 of any magnetic steel baffle 1 is matched with the second splicing base installation hole 10221 of the magnetic steel baffle 1 on one adjacent side, and the second splicing base installation hole 10221 of any magnetic steel baffle 1 is matched with the first splicing base installation hole 10211 of the magnetic steel baffle 1 on the other adjacent side.
Fig. 3A, fig. 3B, fig. 3C, fig. 3D, fig. 3E, and fig. 3F are schematic structural diagrams of the magnetic steel baffle with heat sink of the present invention, and the technical features, technical means, and technical effects of fig. 2 are substantially the same as those of fig. 3, and the magnetic steel baffle 1 includes a baffle dovetail seat 101, a baffle split base 102, and a baffle heat sink 103, and the baffle dovetail seat 101 and the baffle split base 102 are connected together, where: the two sides of the baffle dovetail groove seat 101 are symmetrically provided with a magnetic steel side surface supporting groove seat 1011 and a magnetic steel top surface supporting groove seat 1012; on either side of the damper splice base 102 are a first splice base 1021 and a second splice base 1022. The baffle heat sink 103 on the magnetic steel baffle 1 can be used for radiating heat of the motor rotor outwards to reduce the temperature of the motor rotor.
Fig. 4A, 4B, 4C, and 4D are schematic views illustrating mounting of the magnetic steel baffle and the magnetic steel on the rotor core, wherein partial radial fastening connectors 302 are provided in the mounting embodiments in fig. 4A and 4B, and all radial fastening connectors 302 are provided in the mounting embodiments in fig. 4C and 4D, and the magnetic steel baffle 1 can fasten all the magnetic steel 6 on the rotor bracket 2 in both mounting embodiments.
Rotor structure is pasted to list includes that rotor support 2, equipartition are a row of magnet steel baffle 1, the equipartition is a row of magnet steel 6 on rotor support 2, and magnet steel baffle 1 and magnet steel 6 set up on rotor support 2 in proper order crisscross each other, wherein:
any magnetic steel 6 is contacted with two adjacent magnetic steel baffles 1, and any magnetic steel baffle 1 is contacted with two adjacent magnetic steels 6; the magnetic steel baffle plate 1 is provided with a baffle dovetail groove seat 101 matched with the magnetic steel 6, and the magnetic steel baffle plate 1 is provided with a baffle splicing base 102 matched with two adjacent magnetic steel baffle plates 1.
The baffle dovetail groove seat 101 on the magnetic steel baffle 1 is connected with the baffle splicing base 102; magnetic steel side surface supporting groove seats 1011 are symmetrically arranged on two sides of the baffle dovetail groove seat 101, and magnetic steel top surface supporting groove seats 1012 are symmetrically arranged on two sides of the baffle dovetail groove seat 101; on either side of the damper splice base 102 are a first splice base 1021 and a second splice base 1022.
After the assembly is finished, the second splicing base mounting holes 10221 and the first splicing base mounting holes 10211 of two adjacent magnetic steel baffles 1 on the permanent magnet synchronous motor rotor are matched with each other to form a radial fastening connecting piece 302, and the radial fastening connecting piece 302 is fixed on the corresponding mounting hole on the rotor support 2 and then fixes the two adjacent magnetic steel baffles 1 on the rotor support 2; two adjacent magnetic steel baffle plates 1 symmetrically fasten and clamp one magnetic steel 6 between the two magnetic steel baffle plates on the rotor bracket 2, and corresponding magnetic steel side supporting groove seats 1011 on the two adjacent magnetic steel baffle plates 1 symmetrically apply acting force to the same magnetic steel 6 to make the magnetic steel 6 tightly fixed on the rotor bracket 2.
A first splicing base mounting support 10212 is arranged on the first splicing base 1021, and a second splicing base mounting support 10222 is arranged on the second splicing base 1022. After all the magnetic steels 6 and the magnetic steel baffles 1 are installed on the rotor support 2, a first splicing base installation support 10212 of any magnetic steel baffle 1 is matched with a second splicing base installation support 10222 of the magnetic steel baffle 1 on one adjacent side, a second splicing base installation support 10222 of any magnetic steel baffle 1 is matched with a first splicing base installation support 10212 of the magnetic steel baffle 1 on the other adjacent side, and two adjacent magnetic steel baffles 1 are matched with each other.
An axial fastening connecting piece 303 is arranged between a first splicing base mounting hole 10211 and a second splicing base mounting hole 10221 arranged on any magnetic steel baffle plate 1 and a support axial connecting hole 203 on the rotor support 2, the axial fastening connecting pieces 303 are used for fixing the magnetic steel baffle plates 1 which are connected together, and the magnetic steel 6 is fastened by the magnetic steel baffle plates 1 which are connected together. The first splicing base mounting hole 10211 of any magnetic steel baffle plate 1 is matched with the second splicing base mounting hole 10221 of the magnetic steel baffle plate 1 at the adjacent side, and an axial fastening connecting piece 303 passes through a through hole formed by the first splicing base mounting hole and the second splicing base mounting hole and then passes through the support axial connecting hole 203 to be fastened on the rotor support 2; the second splicing base mounting hole 10221 of the magnetic steel baffle plate 1 is matched with the first splicing base mounting hole 10211 of the magnetic steel baffle plate 1 on the other side adjacent to the second splicing base mounting hole, and the other axial fastening connecting piece 303 penetrates through a through hole formed by the two and then penetrates through the bracket axial connecting hole 203 to be fastened on the rotor bracket 2. The axial fastening connection 303 is shown as a screw and a nut provided at both ends of the screw, and the axial fastening connection 303 may also be a bolt and a nut that are engaged with each other.
Fig. 4E, 4F, 4G, and 4H are schematic diagrams illustrating the installation of the magnetic steel baffle with heat sink and the magnetic steel on the rotor core, wherein the installation embodiments in fig. 4E and 4F are both provided with a part of radial fastening connectors 302, the installation embodiments in fig. 4G and 4H are provided with all radial fastening connectors 302, the magnetic steel baffle 1 in both installation embodiments can fasten all the magnetic steel 6 on the rotor bracket 2, the technical means and technical effects of the two installation embodiments shown in fig. 4E, 4F, 4G, and 4H are substantially the same as those of fig. 4A, 4B, 4C, and 4D, the magnetic steel baffle 1 in both installation embodiments is provided with the heat sink 103, and the heat sink 103 brings better heat dissipation effect to the magnetic steel baffle 1.
Rotor structure is pasted to list includes that rotor support 2, equipartition are a row of magnet steel baffle 1, the equipartition is a row of magnet steel 6 on rotor support 2, and magnet steel baffle 1 and magnet steel 6 set up on rotor support 2 in proper order crisscross each other, wherein:
any magnetic steel 6 is contacted with two adjacent magnetic steel baffles 1, and any magnetic steel baffle 1 is contacted with two adjacent magnetic steels 6; the magnetic steel baffle plate 1 is provided with a baffle dovetail groove seat 101 matched with the magnetic steel 6, and the magnetic steel baffle plate 1 is provided with a baffle splicing base 102 matched with two adjacent magnetic steel baffle plates 1.
The baffle dovetail groove seat 101 on the magnetic steel baffle 1 is connected with the baffle splicing base 102; magnetic steel side surface supporting groove seats 1011 are symmetrically arranged on two sides of the baffle dovetail groove seat 101, and magnetic steel top surface supporting groove seats 1012 are symmetrically arranged on two sides of the baffle dovetail groove seat 101; on either side of the damper splice base 102 are a first splice base 1021 and a second splice base 1022.
After the assembly is finished, the second splicing base mounting holes 10221 and the first splicing base mounting holes 10211 of two adjacent magnetic steel baffles 1 on the permanent magnet synchronous motor rotor are matched with each other to form radial fastening connecting pieces 302, and the radial fastening connecting pieces 302 are fixed on corresponding mounting holes on the rotor support 2 and then fix the two adjacent magnetic steel baffles 1 on the rotor support 2; two adjacent magnetic steel baffle plates 1 symmetrically fasten and clamp one magnetic steel 6 between the two magnetic steel baffle plates on the rotor bracket 2, and corresponding magnetic steel side supporting groove seats 1011 on the two adjacent magnetic steel baffle plates 1 symmetrically apply acting force to the same magnetic steel 6 to make the magnetic steel 6 tightly fixed on the rotor bracket 2.
A first splicing base mounting support 10212 is arranged on the first splicing base 1021, and a second splicing base mounting support 10222 is arranged on the second splicing base 1022. After all the magnetic steels 6 and the magnetic steel baffles 1 are installed on the rotor support 2, a first splicing base installation support 10212 of any magnetic steel baffle 1 is matched with a second splicing base installation support 10222 of the magnetic steel baffle 1 on one adjacent side, a second splicing base installation support 10222 of any magnetic steel baffle 1 is matched with a first splicing base installation support 10212 of the magnetic steel baffle 1 on the other adjacent side, and two adjacent magnetic steel baffles 1 are matched with each other.
An axial fastening connecting piece 303 is arranged between a first splicing base mounting hole 10211 and a second splicing base mounting hole 10221 arranged on any magnetic steel baffle plate 1 and a support axial connecting hole 203 on the rotor support 2, the axial fastening connecting pieces 303 are used for fixing the magnetic steel baffle plates 1 which are connected together, and the magnetic steel 6 is fastened by the magnetic steel baffle plates 1 which are connected together.
An axial fastening connecting piece 303 is arranged between a first splicing base mounting hole 10211 and a second splicing base mounting hole 10221 arranged on any magnetic steel baffle plate 1 and a support axial connecting hole 203 on the rotor support 2, the axial fastening connecting pieces 303 are used for fixing the magnetic steel baffle plates 1 which are connected together, and the magnetic steel 6 is fastened by the magnetic steel baffle plates 1 which are connected together. The first splicing base mounting hole 10211 of any magnetic steel baffle plate 1 is matched with the second splicing base mounting hole 10221 of the magnetic steel baffle plate 1 at the adjacent side, and an axial fastening connecting piece 303 passes through a through hole formed by the first splicing base mounting hole and the second splicing base mounting hole and then passes through the support axial connecting hole 203 to be fastened on the rotor support 2; the second splicing base mounting hole 10221 of the magnetic steel baffle plate 1 is matched with the first splicing base mounting hole 10211 of the magnetic steel baffle plate 1 on the other side adjacent to the second splicing base mounting hole, and the other axial fastening connecting piece 303 penetrates through a through hole formed by the two and then penetrates through the bracket axial connecting hole 203 to be fastened on the rotor bracket 2. The axial fastening connection 303 is shown as a screw and a nut provided at both ends of the screw, and the axial fastening connection 303 may also be a bolt and a nut that are engaged with each other.
FIGS. 4I and 4J are schematic views of the double row finned magnetic steel baffle plate and the installation of magnetic steel on a rotor core according to the present invention;
axial fastening connecting pieces 303 are arranged in dovetail groove seat mounting holes 1013 of the magnetic steel baffle plate 1 of the permanent magnet synchronous motor rotor after the assembly is finished, and the magnetic steel baffle plate 1 is fixed on the rotor bracket 2 by the axial fastening connecting pieces 303; two adjacent magnet steel baffles 1 will be symmetrically with being in a magnet steel 6 fastening clamp between the two on rotor spider 2, corresponding magnet steel side support slot seat 1011 on two adjacent magnet steel baffles 1 from two directions to same magnet steel 6 symmetrically exert the effort make this magnet steel 6 can tightly fix the laminating on rotor spider 2.
A first splicing base mounting support 10212 is arranged on the first splicing base 1021, and a second splicing base mounting support 10222 is arranged on the second splicing base 1022. After all the magnetic steels 6 and the magnetic steel baffles 1 are installed on the rotor support 2, a first splicing base installation support 10212 of any magnetic steel baffle 1 is matched with a second splicing base installation support 10222 of the magnetic steel baffle 1 on one adjacent side, a second splicing base installation support 10222 of any magnetic steel baffle 1 is matched with a first splicing base installation support 10212 of the magnetic steel baffle 1 on the other adjacent side, and two adjacent magnetic steel baffles 1 are matched with each other.
The magnet steel baffle 1 of two and the magnet steel 6 of single row set up on rotor spider 2 in turn in a staggered manner, wherein: any magnetic steel 6 is contacted with two magnetic steel baffles 1 in any adjacent row, and any magnetic steel baffle 1 is contacted with two adjacent magnetic steels 6; any magnetic steel baffle 1 is provided with another magnetic steel baffle 1 which is symmetrical to the magnetic steel baffle 1 and used for fastening the same magnetic steel 6 on the rotor bracket 2. Rotor support 2 and 3 continuous settings of pivot, rotor support 2 and 3 pass through shaft hole interference fit or key-type connection of pivot.
An axial fastening connecting piece 303 is arranged between a first splicing base mounting hole 10211 and a second splicing base mounting hole 10221 arranged on any magnetic steel baffle plate 1 and a support axial connecting hole 203 on the rotor support 2; the axial fastening connector 303 is used for fixing a row of magnetic steel baffles 1 which are connected with each other, and the magnetic steel 6 is fastened by the row of magnetic steel baffles 1 which are connected with each other; the axial fastening connector 303 is used for fixing another row of magnetic steel baffles 1 which are symmetrically connected with each other, and the magnetic steel 6 is fastened by the row of magnetic steel baffles 1 which are connected with each other.
A first splicing base mounting hole 10211 of any magnetic steel baffle plate 1 in any column is matched with a second splicing base mounting hole 10221 of the magnetic steel baffle plate 1 at the adjacent side, and an axial fastening connecting piece 303 penetrates through a through hole formed by the first splicing base mounting hole and the second splicing base mounting hole and then penetrates through a bracket axial connecting hole 203 to be fastened on the rotor bracket 2; the second splicing base mounting hole 10221 of the magnetic steel baffle plate 1 is matched with the first splicing base mounting hole 10211 of the magnetic steel baffle plate 1 on the other side adjacent to the second splicing base mounting hole, and the other axial fastening connecting piece 303 penetrates through a through hole formed by the two and then penetrates through the bracket axial connecting hole 203 to be fastened on the rotor bracket 2. The axial fastening connection 303 is shown as a screw and a nut provided at both ends of the screw, and the axial fastening connection 303 may also be a bolt and a nut that are engaged with each other.
Fig. 5A is a first structural view of a rotor core according to the present invention, in which a rotor frame 2 is provided with a frame axial coupling hole 203, and fig. 5A is a structural view of the rotor frame 2 used in fig. 4; fig. 5B is a second structural schematic diagram of the rotor core of the present invention, in which the rotor frame 2 is provided with frame radial connecting holes 202, and fig. 5B is a structural schematic diagram of the rotor frame 2 used in fig. 6.
FIGS. 6A, 6B, 6C, 6D, 6E and 6F are schematic structural views of a magnetic steel baffle plate with dovetail slot seat mounting holes according to the present invention; the technical effect of fig. 6 is basically the same as that of fig. 2 and 3, and the technical features and technical means of the two are slightly different, and in the technical solution of fig. 5, a dovetail groove seat mounting hole 1013 is provided on the baffle dovetail groove seat 101.
The magnetic steel side supporting groove seats 1011 on the two sides of the baffle dovetail groove seat 101 are symmetrical inclined planes and integrally form an inverted trapezoid, after the magnetic steel 6 and the magnetic steel baffle plate 1 are installed on the rotor support 2, the two side surfaces of the magnetic steel 6 can be respectively contacted with the corresponding magnetic steel side supporting groove seats 1011 on the baffle dovetail groove seats 101 of the two adjacent magnetic steel baffle plates 1.
The magnetic steel top surface supporting groove seats 1012 on the two sides of the baffle dovetail groove seat 101 are symmetrical inclined surfaces, the inclination of the magnetic steel top surface supporting groove seats 1012 on the two sides of the baffle dovetail groove seat 101 is smaller than that of the magnetic steel side surface supporting groove seats 1011 on the two sides of the baffle dovetail groove seat 101, after the magnetic steel 6 and the magnetic steel baffle plate 1 are installed on the rotor bracket 2, the top surface of the magnetic steel 6 can be in contact with the corresponding magnetic steel top surface supporting groove seats 1012 on the baffle dovetail groove seats 101 of the two adjacent magnetic steel baffle plates 1. The baffle dovetail mount 101 is perpendicular to the baffle splice mount 102. The radial fastening connection 302 is arranged on the rotor carrier 2 via a dovetail mounting bore 1013 on the stator dovetail 101, and the radial fastening connection 302 fixes the magnet steel stator 1 only on the rotor carrier 2.
Fig. 7A and 7B show a first example of the mounting of the magnetic steel baffle and the magnetic steel on the rotor core according to the present invention; FIGS. 7C and 7D show a second example of the installation of the double-row magnetic steel baffle and the magnetic steel on the rotor core according to the present invention; fig. 7E and 7F show a third example of the installation of the double row alnico baffle and alnico on the rotor core according to the present invention.
Radial fastening connecting pieces 302 are arranged in dovetail groove seat mounting holes 1013 of the magnetic steel baffle plate 1 of the permanent magnet synchronous motor rotor after the assembly is finished, and the magnetic steel baffle plate 1 is fixed on the rotor bracket 2 by the radial fastening connecting pieces 302; two adjacent magnet steel baffle 1 will be in a magnet steel 6 fastening clamp between the two on rotor support 2 symmetrically, and corresponding magnet steel side support slot seat 1011 is applyed the effort to same magnet steel 6 symmetrically from two directions on two adjacent magnet steel baffle 1 and is made this magnet steel 6 can tightly fix the laminating on rotor support 2.
A first splicing base mounting support 10212 is arranged on the first splicing base 1021, and a second splicing base mounting support 10222 is arranged on the second splicing base 1022. After all the magnetic steels 6 and the magnetic steel baffles 1 are installed on the rotor support 2, a first splicing base installation support 10212 of any magnetic steel baffle 1 is matched with a second splicing base installation support 10222 of the magnetic steel baffle 1 on one adjacent side, a second splicing base installation support 10222 of any magnetic steel baffle 1 is matched with a first splicing base installation support 10212 of the magnetic steel baffle 1 on the other adjacent side, and two adjacent magnetic steel baffles 1 are matched with each other.
The magnetic steel baffle 1 comprises a baffle dovetail groove seat 101 and a baffle splicing base 102, and the baffle dovetail groove seat 101 and the baffle splicing base 102 are connected together; the two sides of the baffle dovetail groove seat 101 are symmetrically provided with a magnetic steel side surface supporting groove seat 1011 and a magnetic steel top surface supporting groove seat 1012; on either side of the damper splice base 102 are a first splice base 1021 and a second splice base 1022.
Any magnetic steel 6 is in contact with the magnetic steel side supporting groove seats 1011 and the magnetic steel top surface supporting groove seats 1012 of the two adjacent baffle dovetail groove seats 101, two side surfaces of the magnetic steel 6 are in contact with the corresponding magnetic steel side supporting groove seats 1011 on the two adjacent baffle dovetail groove seats 101 respectively, and the top surface of the magnetic steel 6 is in contact with the corresponding magnetic steel top surface supporting groove seats 1012 on the two adjacent baffle dovetail groove seats 101.
The magnetic steel top surface supporting groove seats 1012 on the two sides of the baffle dovetail groove seat 101 are symmetrical inclined surfaces, and the inclination of the magnetic steel top surface supporting groove seats 1012 on the two sides of the baffle dovetail groove seat 101 is smaller than that of the magnetic steel side surface supporting groove seats 1011 on the two sides of the baffle dovetail groove seat 101; the magnetic steel side surface supporting slot seats 1011 on the two sides of the baffle dovetail slot seat 101 are both symmetrical inclined planes and are integrally in an inverted trapezoid shape.
Any pair of symmetrical geomagnetic steel baffles 1 arranged on the rotor bracket 2 are oppositely arranged. Any pair of magnetic steel baffles 1 can fasten the magnetic steel 6 on two sides through the magnetic steel side supporting slot seats 1011 and the magnetic steel top supporting slot seats 1012 on the magnetic steel baffles.
Dovetail groove seat mounting holes 1013 are formed in the baffle dovetail groove seat 101 of the magnetic steel baffle 1, and bracket radial connecting holes 202 corresponding to the dovetail groove seat mounting holes 1013 are uniformly formed in the rotor bracket 2; radial fastening connections 302 are provided between the dovetail mount apertures 1013 and the bracket radial connection apertures 202. The radial fastening connection 302 is a threaded rod double nut, a bolt nut or a screw, and the dovetail seat mounting bore 1013 and the bracket radial connection bore 202 have threads that mate with the aforementioned bolt or screw.
FIGS. 7A and 7B illustrate an exemplary embodiment of the mounting of the magnetic steel shield and magnetic steel to the rotor core of the present invention, wherein the dovetail seat mounting holes 1013 and the bracket radial attachment holes 202 are not threaded; FIGS. 7C and 7D show a second example of the mounting of the double row alnico baffles and alnicos on the rotor core, wherein the dovetail seat mounting holes 1013 and the bracket radial connecting holes 202 are not threaded; fig. 7E and 7F are three examples of the installation of the double row alnico baffle and alnico on the rotor core according to the present invention, and a screw thread is required on the bracket radial connection hole 202 for installing the radial fastening connection 302.
FIGS. 7G and 7H are schematic views of the installation of single-row magnetic steel baffles and magnetic steels on a rotor core according to the invention; the invention relates to a single-row surface-mounted rotor structure for a permanent magnet synchronous motor, which comprises a rotor support 2, a row of magnetic steel baffles 1 uniformly distributed on the rotor support 2, and a row of magnetic steels 6 uniformly distributed on the rotor support 2, wherein the magnetic steel baffles 1 and the magnetic steels 6 are sequentially arranged on the rotor support 2 in a staggered manner, wherein:
any magnetic steel 6 is contacted with two adjacent magnetic steel baffles 1, and any magnetic steel baffle 1 is contacted with two adjacent magnetic steels 6; the magnetic steel baffle plate 1 is provided with a baffle dovetail groove seat 101 matched with the magnetic steel 6, and the magnetic steel baffle plate 1 is provided with a baffle splicing base 102 matched with two adjacent magnetic steel baffle plates 1.
The baffle dovetail groove seat 101 on the magnetic steel baffle 1 is connected with the baffle splicing base 102; magnetic steel side surface supporting groove seats 1011 are symmetrically arranged on two sides of the baffle dovetail groove seat 101, and magnetic steel top surface supporting groove seats 1012 are symmetrically arranged on two sides of the baffle dovetail groove seat 101; on either side of the damper splice base 102 are a first splice base 1021 and a second splice base 1022.
Dovetail groove seat mounting holes 1013 are formed in the baffle dovetail groove seat 101 of the magnetic steel baffle 1, and radial fastening connecting pieces 302 corresponding to the dovetail groove seat mounting holes 1013 are uniformly arranged on the rotor bracket 2; a radial fastening connecting piece 302 is arranged between the dovetail groove seat mounting hole 1013 and the bracket radial connecting hole 202; the radial fastening connecting piece 302 is a bolt or a screw, the bracket radial connecting hole 202 is provided with an internal thread matched with the radial fastening connecting piece 302, and the external thread of the bolt or the screw is matched with the internal thread of the bracket radial connecting hole 202; alternatively, the radial fastening connection 302 is a cooperating bolt and nut, the bracket radial connection bore 202 is unthreaded, and the bolt engages the nut after passing through the dovetail mount receiving bore 1013 and the bracket radial connection bore 202.
Fig. 8A is a schematic cross-sectional view of a magnetic steel baffle and magnetic steel mounted on a rotor frame, and fig. 8B is a partial enlarged view of fig. 8A. Including rotor bracket 2, magnet steel baffle 1 and magnet steel 6 on the permanent magnet synchronous motor rotor after the assembly finishes, magnet steel baffle 1 and magnet steel 6 set up on rotor bracket 2 crisscross in proper order, wherein: any magnetic steel 6 arranged on the rotor bracket 2 is contacted with two adjacent magnetic steel baffles 1, and any magnetic steel baffle 1 arranged on the rotor bracket 2 is contacted with two adjacent magnetic steels 6.
The magnetic steel top surface supporting groove seats 1012 on the two sides of the baffle dovetail groove seat 101 are symmetrical inclined surfaces, and the inclination of the magnetic steel top surface supporting groove seats 1012 on the two sides of the baffle dovetail groove seat 101 is smaller than that of the magnetic steel side surface supporting groove seats 1011 on the two sides of the baffle dovetail groove seat 101; the magnetic steel side supporting groove seats 1011 on the two sides of the baffle dovetail groove seat 101 are both symmetrical inclined planes and are integrally in an inverted trapezoid shape.
Any magnetic steel 6 arranged on the rotor bracket 2 is in contact with the magnetic steel side supporting groove seats 1011 and the magnetic steel top surface supporting groove seats 1012 of the two adjacent baffle dovetail groove seats 101, two side surfaces of the magnetic steel 6 are in contact with the corresponding magnetic steel side supporting groove seats 1011 on the two adjacent baffle dovetail groove seats 101 respectively, and the top surfaces of the magnetic steel 6 are in contact with the corresponding magnetic steel top surface supporting groove seats 1012 on the two adjacent baffle dovetail groove seats 101.
A first splicing base mounting support 10212 of any magnetic steel baffle plate 1 arranged on the rotor support 2 is matched with a second splicing base mounting support 10222 of the adjacent magnetic steel baffle plate 1, and a first splicing base mounting hole 10211 of any magnetic steel baffle plate 1 arranged on the rotor support 2 is matched with a second splicing base mounting hole 10221 of the adjacent magnetic steel baffle plate 1; the second mount mounting base 10222 of any magnetic steel baffle plate 1 arranged on the rotor support 2 is matched with the first mount mounting base 10212 of the adjacent magnetic steel baffle plate 1 on the other side.
Claims (9)
1. The utility model provides a PMSM's biserial table pastes rotor structure, its characterized in that is in including spider (2), equipartition be in spider (2) are gone up two magnet steel baffle (1), the equipartition of symmetry and are in one magnet steel (6) on spider (2), two magnet steel baffle (1) and one magnet steel (6) crisscross the setting in proper order on spider (2), wherein:
any two adjacent magnetic steels (6) on any row fasten the same magnetic steel (6) together, any one magnetic steel (6) on any row is contacted with two adjacent magnetic steel baffles (1), and any one magnetic steel baffle (1) is contacted with two adjacent magnetic steels (6);
any one magnetic steel baffle (1) on any one row is provided with another magnetic steel baffle (1) which is arranged on the other row and is symmetrical with the magnetic steel baffle on the rotor bracket (2), and the two magnetic steel baffles (1) on the two rows act on the same magnetic steel (6) symmetrically.
2. The double row surface-mounted rotor structure of claim 1, wherein the baffle dovetail seat (101) of the magnetic steel baffle (1) is connected with the baffle splicing base (102); magnetic steel side surface supporting groove seats (1011) are symmetrically arranged on two sides of the baffle dovetail groove seat (101), and magnetic steel top surface supporting groove seats (1012) are symmetrically arranged on two sides of the baffle dovetail groove seat (101); the two sides of the baffle splicing base (102) are respectively provided with a first splicing base (1021) and a second splicing base (1022).
3. The dual row surface-mounted rotor structure of claim 2, wherein the first splice base (1021) of any one magnetic steel baffle (1) of any one row of magnetic steel baffles (1) is matched with the second splice base (1022) of the adjacent magnetic steel baffle (1), and the second splice base (1022) of the magnetic steel baffle (1) is matched with the first splice base (1021) of the adjacent magnetic steel baffle (1).
4. The double row surface-mounted rotor structure of claim 2, wherein the magnetic steel baffle (1) is provided with a first splicing base mounting hole (10211) and a second splicing base mounting hole (10221); any one is listed as on magnet steel baffle (1) any one on magnet steel baffle (1) first concatenation base mounting hole (10211) with rather than adjacent on magnet steel baffle (1) second concatenation base mounting hole (10221) cooperate, on magnet steel baffle (1) second concatenation base mounting hole (10221) with rather than adjacent on magnet steel baffle (1) first concatenation base mounting hole (10211) cooperate.
5. The double row surface-mounted rotor structure of claim 4, characterized in that an axial fastening connector (303) is arranged between the first and second splicing base mounting holes (10211, 10221) of the magnetic steel baffle plate (1) and the support axial connecting hole (203) of the rotor support (2).
6. The double-row surface-mounted rotor structure of claim 1, wherein the magnetic steel side surface supporting groove seat (1011) or the magnetic steel top surface supporting groove seat (1012) on any one of the magnetic steel baffles (1) is in contact with one of the magnetic steels (6).
7. The double row surface-mounted rotor structure according to claim 2, wherein the magnetic steel baffle (1) has a dovetail seat mounting hole (1013) on the baffle dovetail seat (101), and the rotor frame (2) has a frame radial connecting hole (202) corresponding to the dovetail seat mounting hole (1013) uniformly; and a radial fastening connecting piece (302) is arranged between the dovetail groove seat mounting hole (1013) and the bracket radial connecting hole (202).
8. The double row surface-mounted rotor structure according to any one of claims 1 to 7, wherein any one of the magnetic steels (6) on the rotor support (2) is jointly fastened by four magnetic steel baffles (1) in contact with the magnetic steel baffle.
9. The double-row surface-mounted rotor structure according to claim 8, characterized in that the rotor support (2) and the rotating shaft (3) are connected, and the rotor support (2) and the rotating shaft (3) are connected through shaft hole interference fit or key connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122997419.7U CN216672703U (en) | 2021-12-01 | 2021-12-01 | Double-row surface-mounted rotor structure of permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122997419.7U CN216672703U (en) | 2021-12-01 | 2021-12-01 | Double-row surface-mounted rotor structure of permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216672703U true CN216672703U (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122997419.7U Active CN216672703U (en) | 2021-12-01 | 2021-12-01 | Double-row surface-mounted rotor structure of permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216672703U (en) |
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2021
- 2021-12-01 CN CN202122997419.7U patent/CN216672703U/en active Active
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Denomination of utility model: Double-row surface-mounted rotor structure of permanent magnet synchronous motor Effective date of registration: 20230214 Granted publication date: 20220603 Pledgee: Dalian Branch of Shanghai Pudong Development Bank Co.,Ltd. Pledgor: Dalian Tiansheng permanent magnet motor Co.,Ltd. Registration number: Y2023980032668 |