CN214380348U

CN214380348U - Block type permanent magnet motor rotor

Info

Publication number: CN214380348U
Application number: CN202023240376.XU
Authority: CN
Inventors: 张胜川; 王学圣
Original assignee: Shun Drive Power Technology Nantong Co Ltd
Current assignee: Shun Drive Power Technology Nantong Co Ltd
Priority date: 2020-12-14
Filing date: 2020-12-29
Publication date: 2021-10-08
Anticipated expiration: 2030-12-29

Abstract

The utility model provides a piece together piece formula permanent-magnet machine rotor, including rotor core, rotor core passes through the spider setting in the pivot, and rotor core includes a plurality of iron core polar blocks, and a plurality of iron core polar blocks butt joint splice into the rotor core of closed loop configuration end to end; the iron core pole block comprises a plurality of laminated and combined iron core pieces, a first splicing part and a second splicing part are respectively arranged at two ends of each iron core piece, and the first splicing parts of the iron core pole blocks can be in butt joint with the second splicing parts of the adjacent iron core pole blocks in an inosculating manner. The utility model discloses a piece together formula permanent-magnet machine rotor of convenient assembling, simple operation.

Description

Block type permanent magnet motor rotor

Technical Field

The utility model relates to a production and processing field, concretely relates to piece together piece formula permanent-magnet machine rotor.

Background

With the rapid development of the new energy automobile industry, a new round of motor innovation is caused, the P2 power system can realize multiple modes of pure electric, internal combustion engine driving and hybrid power driving, is flexible in arrangement and small in occupied axial space, and is widely concerned by various large host factories. The most important requirement for developing the next generation P2 power system is to further reduce the space size of the whole system, i.e. the axial size is as short as possible, and at the same time, integrate the damping system or the clutch into the rotor, which makes the axial and radial space occupied by the motor very limited, therefore, the flat motor suitable for the P2 power system is produced.

The rotor structure of the existing P2 motor is shown in figure 1, the rotor core is formed by punching and laminating integrated iron core sheets, and is suitable for the P2 motor structure, so that the axial length of the rotor is very short, the inner diameter of the rotor is larger, and the rotor core is in a structure with short axial length and thin radial thickness. Fig. 1 is a schematic view of a rotor of a P2 conventional motor. Common motor rotor towards piece is the current situation that the rotor core was folded to the ring formula and is pressed into in the existing market, and to the motor of different stator and rotor internal and external diameters, the processing of stator and rotor towards piece can cause the extravagant condition of serious silicon steel sheet raw and other materials, and silicon steel sheet weight, raw and other materials cost account for than higher.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes prior art's is not enough, provides a piece together formula permanent-magnet machine rotor of convenient assembling, simple operation.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a piece together the block type permanent magnet machine rotor, including the rotor core, the said rotor core is set up on the spindle through the trochanter support, the said rotor core includes a plurality of iron core pole pieces, a plurality of said iron core pole pieces end to end splice into the rotor core of the closed loop configuration; the iron core pole block comprises a plurality of laminated and combined iron core pieces, a first splicing portion and a second splicing portion are arranged at two ends of each iron core piece respectively, and the first splicing portion of the iron core pole block can be in butt joint with the second splicing portion of the adjacent iron core pole block in an inosculating manner.

The utility model discloses in a preferred embodiment, the iron core piece is the segmental arc structure, just the iron core piece inboard is provided with a plurality of equipment portion one, the periphery of rotor support be provided with a plurality of with the equipment portion two of the first butt joint combination of equipment portion.

In a preferred embodiment of the present invention, a plurality of grooves with outward openings are respectively disposed at two ends of the iron core plate.

The utility model discloses an in the preferred embodiment, be provided with a plurality of spacing grooves in the recess, the magnet steel with spacing the inlaying of spacing groove is established.

The utility model discloses an in the preferred embodiment, the spider include with the butt joint cover that the fixed cover of pivot was established, the peripheral cover of butt joint cover is equipped with the butt joint ring, the butt joint cover with be provided with a plurality of brace rod between the butt joint ring.

In a preferred embodiment of the present invention, the periphery of the docking ring is provided with a plurality of second assembling portions, and the second assembling portions are concave docking grooves; the first assembling part is a second convex butt-joint clamping block.

In a preferred embodiment of the present invention, the second splicing part is a first inward-concave butt-joint groove; the first splicing part is a first outwards-convex butt-joint clamping block.

In a preferred embodiment of the present invention, the first butt-joint groove and the first butt-joint fixture block, and the second butt-joint groove and the second butt-joint fixture block both adopt a dovetail structure.

The utility model discloses an in the preferred embodiment, recess on the iron core piece and the recess combination on the iron core piece of adjacent butt joint form and accomodate the magnet steel groove of magnet steel.

The utility model discloses an in the preferred embodiment, the quantity of iron core pole piece is unanimous with the quantity of rotor core's number of poles in the rotor core.

The utility model provides a defect that exists in the technical background, the utility model discloses profitable technological effect is:

first, form the rotor core of closed loop structure through a plurality of iron core polar block concatenation combinations, promoted rotor core's equipment variety. The rotor core spliced by the iron core pole blocks is arranged on the rotating shaft through the rotor support, so that the installation convenience is further improved. When the rotor iron core is partially damaged, the partial iron core pole blocks can be independently replaced.

And secondly, grooves are formed in the iron core pole blocks, magnetic steel grooves are formed in the grooves between the iron core pole blocks which are spliced in a butt joint mode, magnetic steel is embedded in the magnetic steel grooves, and the magnetic steel is limited by limiting grooves arranged in the magnetic steel grooves.

And thirdly, the rotor core is formed by splicing and combining a plurality of iron core pole blocks, and the iron core pole blocks are formed by laminating and combining a plurality of iron chips, so that the production convenience and the material utilization rate of the rotor core are further improved. The iron core sheet of the iron core pole block of each pair of poles can be punched by using the silicon steel sheet with smaller width, so that the waste can be greatly saved, and the cost of the rotor iron core can be greatly reduced; meanwhile, after the iron core pole block with the block type structure is adopted, the flatness requirement of the iron core of each part of the rotor iron core is easily ensured.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a first schematic diagram of a prior art configuration;

fig. 2 is an axial view structural schematic diagram of an iron core pole block in a block type rotor iron core according to a preferred embodiment of the present invention;

fig. 3 is a schematic top view of a block rotor core according to a preferred embodiment of the present invention;

fig. 4 is a schematic top view of a block-type rotor core according to a preferred embodiment of the present invention;

fig. 5 is a schematic top view of a block-type rotor core according to a preferred embodiment of the present invention;

FIG. 6 is a schematic view of a rotor support according to a preferred embodiment of the present invention;

fig. 7 is a schematic structural view of the assembly of the block type rotor core and the rotor bracket according to the preferred embodiment of the present invention;

fig. 8 is a schematic structural view of a block rotor assembly formed by assembling a block rotor core and a rotor bracket according to a preferred embodiment of the present invention;

the meaning of the reference numerals in the figures; 1-rotor iron core, 10-iron core pole block, 2-magnetic steel groove, and 20-groove. 201-a limiting groove, 3-magnetic steel, 40-a first splicing part, 50-a second splicing part, 60-a first assembling part, 70-a second assembling part, 80-a rotor bracket, 81-a butting sleeve, 811-a positioning groove, 82-a supporting rib and 83-a butting ring.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and which therefore show only the constituents relevant to the invention.

It should be noted that, if directional indications (such as up, down, bottom, top, etc.) are involved in the embodiments of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are intended to be inclusive and mean, for example, that there may be a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 2 to 8, a block-type permanent magnet motor rotor includes a rotor core 1, the rotor core 1 is disposed on a rotating shaft through a rotor bracket 80, the rotor core 1 includes a plurality of iron core pole blocks 10, and the plurality of iron core pole blocks 10 are spliced end to form the rotor core 1 of a closed ring structure. The number of the core pole pieces 10 is obtained by dividing the rotor core 1 by the number of poles, and therefore, the number of the core pole pieces 10 matches the number of the poles of the rotor core 1.

Specifically, the rotor support 80 comprises a butt joint sleeve 81 fixedly sleeved with the rotating shaft, an inward concave positioning groove 811 is arranged on the inner wall of the butt joint sleeve 81 communicated with the rotating shaft, the positioning groove 811 can be in limited butt joint with the rotating shaft, a butt joint ring 83 is concentrically sleeved on the periphery of the butt joint sleeve 81, and a plurality of support ribs 82 are uniformly arranged between the butt joint sleeve 81 and the butt joint ring 83. The periphery of the butt-joint ring 83 is uniformly provided with a plurality of assembling parts 70 which are protruded outwards at intervals. The second assembling portion 70 is a second concave butt-joint groove.

Specifically, the iron core pole piece 10 includes the iron core piece of the multiple-disc overlapping punching press, and the iron core piece is the arc section structure, and the both ends of iron core piece are provided with splice portion one 40 and splice portion two 50 respectively, and the iron core piece inboard evenly is provided with a plurality of equipment portions one 60 that realize a pair of combination butt joint with equipment portion two 70, and equipment portion one 60 is the butt joint fixture block two of evagination. The splicing part II 50 is a concave butt joint groove I; the first splicing part 40 is a first convex butting fixture block. The first splicing part 40 of the iron core pole block 10 can be matched and butted with the second splicing part 50 of the adjacent iron core pole block 10. The first butt joint groove and the first butt joint clamping block are both in dovetail structures with identical shapes. The second butt joint groove and the second butt joint clamping block both adopt dovetail structures with identical shapes.

Further, two ends of the core plate are respectively provided with a groove 20 with an outward opening. An inward concave limiting groove 201 is arranged in the groove 20, and the magnetic steel 3 is embedded in the limiting groove 201 in a limiting manner. The combination of the groove 20 on the iron chip and the groove 20 on the adjacent butt-joint iron chip forms the magnetic steel groove 2 for accommodating the waist-shaped hole structure of the magnetic steel 3, and the combination of the limiting groove 201 arranged in the magnetic steel groove 2 forms an inward concave groove structure for limiting the position of the magnetic steel 3 embedded in the magnetic steel groove 2.

The utility model discloses the theory of operation:

as shown in fig. 2 to 8, a plurality of iron core pole blocks 10 formed by punching iron core pieces are spliced in a final assembly manner, a first splicing part 40 and a second splicing part 50 of adjacent iron core pole blocks 10 are spliced in a final assembly manner, a first assembly part 60 of each iron core pole block 10 is spliced in a butt joint manner with a second assembly part 70 arranged on a rotor support 80, a plurality of iron core pole blocks 10 are spliced in an end-to-end manner to form a rotor iron core 1 of an annular structure, the rotor iron core 1 is sleeved on the periphery of a butt joint ring 83 of the rotor support 80, and the rotor iron core 1 and the rotor support 80 are concentrically sleeved to form an integrally-formed spliced permanent magnet motor rotor.

Above concrete implementation is right the utility model provides a scheme thought concrete support, can not injecing with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any change or equivalent change of equivalence that do on this technical scheme basis all still belong to the utility model discloses technical scheme's scope of protection.

Claims

1. The utility model provides a piece together piece formula permanent-magnet machine rotor, includes rotor core, rotor core passes through the spider setting in the pivot, its characterized in that: the rotor core comprises a plurality of core pole blocks, and the plurality of core pole blocks are spliced end to form a closed-loop rotor core; the iron core pole block comprises a plurality of laminated and combined iron core pieces, a first splicing portion and a second splicing portion are arranged at two ends of each iron core piece respectively, and the first splicing portion of the iron core pole block can be in butt joint with the second splicing portion of the adjacent iron core pole block in an inosculating manner.

2. The modular permanent magnet motor rotor of claim 1, wherein: the iron core piece is of an arc-shaped section structure, a plurality of first assembling portions are arranged on the inner side of the iron core piece, and a plurality of second assembling portions which are in butt joint combination with the first assembling portions are arranged on the periphery of the rotor support.

3. The modular permanent magnet motor rotor of claim 2, wherein: and a plurality of grooves with outward openings are respectively arranged at two ends of the iron core plate.

4. The modular permanent magnet motor rotor of claim 3, wherein: a plurality of limiting grooves are arranged in the groove, and the magnetic steel is embedded in the limiting grooves in a limiting mode.

5. The modular permanent magnet motor rotor of claim 1, wherein: the rotor support comprises a butt joint sleeve fixedly sleeved with the rotating shaft, a butt joint ring is sleeved on the periphery of the butt joint sleeve, and a plurality of supporting ribs are arranged between the butt joint sleeve and the butt joint ring.

6. The modular permanent magnet motor rotor of claim 5, wherein: a plurality of second assembling parts are arranged on the periphery of the butt joint ring, and the second assembling parts are inwards concave butt joint grooves II; the first assembling part is a second convex butt-joint clamping block.

7. The modular permanent magnet motor rotor of claim 6, wherein: the splicing part II is a concave butt joint groove I; the first splicing part is a first outwards-convex butt-joint clamping block.

8. The modular permanent magnet motor rotor of claim 7, wherein: the first butt joint groove and the first butt joint clamping block as well as the second butt joint groove and the second butt joint clamping block are both in dovetail structures.

9. The modular permanent magnet motor rotor of claim 4, wherein: the groove on the iron core piece and the groove on the adjacent butt joint iron core piece are combined to form a magnetic steel groove for accommodating the magnetic steel.

10. The modular permanent magnet motor rotor of claim 4, wherein: the number of the iron core pole blocks in the rotor iron core is consistent with the number of poles of the rotor iron core.