CN220122663U - Split type BLDC motor rotor structure - Google Patents
Split type BLDC motor rotor structure Download PDFInfo
- Publication number
- CN220122663U CN220122663U CN202321727719.6U CN202321727719U CN220122663U CN 220122663 U CN220122663 U CN 220122663U CN 202321727719 U CN202321727719 U CN 202321727719U CN 220122663 U CN220122663 U CN 220122663U
- Authority
- CN
- China
- Prior art keywords
- liner tube
- mounting sleeve
- rotor
- mounting
- bldc 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.)
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Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 230000005389 magnetism Effects 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a split BLDC motor rotor structure, which comprises a liner tube, a plurality of rotor cores and a mounting sleeve, wherein the liner tube is arranged on the liner tube; the mounting sleeve is prepared and formed by a magnetism isolating material; the mounting sleeve is detachably connected with the liner tube, and the rotor iron core is detachably arranged in the mounting sleeve; bearing holes are formed in the liner tube, and tooth parts are uniformly and densely arranged on the outer surface of the liner tube. The mounting sleeve takes the magnetism isolating material such as aluminum or plastic as a forming raw material, and forms a magnetism isolating tape between the liner tube and the rotor core, so that the magnetism leakage can be effectively reduced, the magnetic property of the rotor is improved, and the power density is further improved; the utility model has the advantage of reducing magnetic leakage.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a rotor structure of a split BLDC motor.
Background
The BLDC motor is a brushless direct current motor, and the electronic commutator replaces a mechanical commutator, so that the BLDC motor has the characteristics of good speed regulation and the like of the direct current motor, and has the advantages of simple structure, no commutation spark, reliable operation, easy maintenance and the like of the alternating current motor.
The conventional BLDC motor rotor is formed by stamping an integral core, which is of an integral structure, and a slot must be connected between the center and the periphery, and this part is of a communication structure, so that a problem of magnetic leakage occurs.
Therefore, the existing BLDC motor rotor integrated structure has a defect that magnetic leakage occurs.
Disclosure of Invention
The utility model aims to provide a rotor structure of a split BLDC motor. The utility model has the advantage of reducing magnetic leakage.
The technical scheme of the utility model is as follows: the rotor structure of the split BLDC motor comprises an annular liner tube, a plurality of rotor iron cores annularly distributed outside the liner tube and a mounting sleeve sleeved outside the liner tube and connected with the rotor iron cores; the mounting sleeve is prepared from a magnetism isolating material; the mounting sleeve is detachably connected with the liner tube, and the rotor core is detachably arranged in the mounting sleeve; bearing holes for penetrating the bearings are formed in the middle of the liner tube, and toothed mounting tooth parts are uniformly and densely distributed outside the liner tube; the magnetic isolation material forming the mounting sleeve at least comprises pure aluminum, aluminum alloy, PBT, PP, PA or PA66.
In the split BLDC motor rotor structure, the inner wall of the mounting sleeve is provided with toothed inner walls corresponding to the mounting teeth.
In the split type BLDC motor rotor structure, the middle part of the mounting sleeve is in a polygonal prism shape, and the rotor iron core corresponds to the edge of the mounting sleeve; connecting clamping blocks corresponding to the rotor core are uniformly distributed at the end part of the outer edge of the mounting sleeve; the connecting clamping blocks are fan-shaped.
In the split type BLDC motor rotor structure, the front end of the rotor core is provided with a connecting part corresponding to the connecting clamping block; the cross section of the connecting part is a triangle with the bottom side being an arc; the front end of the rotor core vertically penetrates through a fixing hole which is used for being connected with a connecting clamping block, and the connecting clamping block is provided with a fixing column corresponding to the fixing hole.
In the split BLDC motor rotor structure, two sides of the rear end of the rotor core are provided with protrusions protruding outwards, and the side walls of the adjacent rotor cores and the outer walls of the corresponding mounting sleeves form mounting grooves for mounting the permanent magnets.
Compared with the prior art, the mounting sleeve takes magnetism isolating materials such as aluminum or plastics as forming raw materials, and the mounting sleeve forms a magnetism isolating tape between the liner tube and the rotor core, so that the magnetic leakage can be effectively reduced, the magnetic performance of the rotor is improved, and the power density is further improved;
therefore, the utility model has the advantage of reducing magnetic leakage.
Furthermore, the rotor structure of the utility model is composed of the liner tube, a plurality of rotor iron cores and the installation sleeve for connecting and fixing the middle part, the liner tube and the rotor iron cores directly form a whole through the cast installation sleeve, the whole strength is good, and the problem of deformation can not occur in the long-term high-speed rotation use process;
the rotor core is a plurality of independent components, and the high-die patterns can be staggered, so that the material utilization rate is effectively increased.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic illustration of the unassembled structure of the present utility model;
FIG. 3 is an enlarged view at A in FIG. 1;
fig. 4 is an enlarged view at B in fig. 2.
Reference numerals: the rotor comprises a rotor core, a connecting part 11, a fixing hole 12, a mounting sleeve 2, a connecting clamping block 21, a lining tube 3, a bearing hole 31, a mounting tooth part 32 and a mounting groove 4.
Detailed Description
The utility model is further illustrated by the following figures and examples, which are not intended to be limiting.
Examples. 1-4, the split BLDC motor rotor structure comprises an annular liner tube 3, eight rotor iron cores 1 annularly distributed outside the liner tube 3 and a mounting sleeve 2 sleeved outside the liner tube 3 and connected with the rotor iron cores 1; the mounting sleeve 2 is formed by integrally molding a magnetism isolating material, and the rotor core 1 and the liner tube 3 form a whole; the mounting sleeve 2 is detachably connected with the liner tube 3, and the rotor core 1 is detachably arranged in the mounting sleeve 2; the middle part of the liner tube 3 is provided with a bearing hole 31 for penetrating the bearing, and the outer part of the liner tube 3 is uniformly and densely provided with toothed mounting teeth 32; the magnetic shielding material constituting the mounting sleeve 2 may be an aluminum material or a plastic material, such as pure aluminum, an aluminum alloy, PBT, PP, PA, PA66, or the like.
The inside of the installation sleeve 2 is provided with a toothed inner wall corresponding to the installation tooth part 32, and the toothed inner wall is correspondingly clamped and fixed with the installation tooth part 32.
The middle part of the mounting sleeve 2 is in a polygonal prism shape, and the rotor iron core 1 corresponds to the edge of the mounting sleeve 2; the outer edge end part of the mounting sleeve 2 is uniformly distributed with connecting clamping blocks 21 corresponding to the rotor core 1; the connecting clamp block 21 has a fan shape.
The front end of the rotor core 1 is provided with a connecting part 11 corresponding to the connecting clamp block 21; the cross section of the connecting part 11 is a triangle with the bottom side being an arc; the front end of the rotor core 1 vertically penetrates through a fixing hole 12 for being connected with a connecting clamping block 21, and the connecting clamping block 21 is provided with a fixing column corresponding to the fixing hole 12.
Protruding parts protruding outwards are arranged on two sides of the rear end of the rotor core 1, and mounting grooves 4 for mounting permanent magnets are formed by the side walls of the adjacent rotor cores 1 and the outer walls of the corresponding mounting sleeves 2.
Claims (5)
1. Split type BLDC motor rotor structure, its characterized in that: comprises an annular liner tube (3), a plurality of rotor iron cores (1) annularly distributed outside the liner tube (3) and a mounting sleeve (2) sleeved outside the liner tube (3) and connected with the rotor iron cores (1); the mounting sleeve (2) is prepared and formed by a magnetism isolating material; the mounting sleeve (2) is detachably connected with the liner tube (3), and the rotor core (1) is detachably arranged in the mounting sleeve (2); bearing holes (31) for penetrating through bearings are formed in the middle of the liner tube (3), and toothed mounting tooth parts (32) are uniformly and densely distributed on the outer part of the liner tube (3); the magnetic isolation material forming the mounting sleeve (2) at least comprises pure aluminum, aluminum alloy, PBT, PP, PA or PA66.
2. The split BLDC motor rotor structure of claim 1, wherein: the inside of the installation sleeve (2) is provided with a toothed inner wall corresponding to the installation tooth part (32).
3. The split BLDC motor rotor structure of claim 1, wherein: the middle part of the mounting sleeve (2) is in a polygonal prism shape, and the rotor iron core (1) corresponds to the edge of the mounting sleeve (2); connecting clamping blocks (21) corresponding to the rotor core (1) are uniformly distributed at the outer edge end part of the mounting sleeve (2); the connecting clamping blocks (21) are sector-shaped.
4. The split BLDC motor rotor structure of claim 1, wherein: the front end of the rotor core (1) is provided with a connecting part (11) corresponding to the connecting clamp block (21); the section of the connecting part (11) is a triangle with the bottom side being an arc; the front end of the rotor core (1) vertically penetrates through a fixing hole (12) used for being connected with a connecting clamping block (21), and the connecting clamping block (21) is provided with a fixing column corresponding to the fixing hole (12).
5. The split BLDC motor rotor structure of claim 1, wherein: the two sides of the rear end of the rotor core (1) are provided with outwards protruding protrusions, and the side walls of the adjacent rotor cores (1) and the outer walls of the corresponding mounting sleeves (2) form mounting grooves (4) for mounting permanent magnets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321727719.6U CN220122663U (en) | 2023-07-03 | 2023-07-03 | Split type BLDC motor rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321727719.6U CN220122663U (en) | 2023-07-03 | 2023-07-03 | Split type BLDC motor rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220122663U true CN220122663U (en) | 2023-12-01 |
Family
ID=88891634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321727719.6U Active CN220122663U (en) | 2023-07-03 | 2023-07-03 | Split type BLDC motor rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220122663U (en) |
-
2023
- 2023-07-03 CN CN202321727719.6U patent/CN220122663U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |