CN220173047U - Motor rotor end ring inner fan structure - Google Patents
Motor rotor end ring inner fan structure Download PDFInfo
- Publication number
- CN220173047U CN220173047U CN202321433329.8U CN202321433329U CN220173047U CN 220173047 U CN220173047 U CN 220173047U CN 202321433329 U CN202321433329 U CN 202321433329U CN 220173047 U CN220173047 U CN 220173047U
- Authority
- CN
- China
- Prior art keywords
- end ring
- ring
- rotor end
- rotor
- fan
- 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
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to the technical field of motor heat dissipation structures, in particular to a motor rotor end ring fan structure. The rotary shaft comprises a rotary shaft, a rotor core is arranged in the middle of the rotary shaft, two ends of the rotor core are respectively connected with a rotor end ring, one side of the rotor end ring, which is opposite to the rotor core, is detachably connected with an inner fan through bolts, and the rotary shaft rotates to drive the inner fans on the left side and the right side to rotate together. The inner fan is arranged on the side surface of the rotor end ring, so that the inner fan is convenient to disassemble and maintain, and the damage of the inner fan to the rotor shaft caused by disassembly and assembly is avoided; meanwhile, the space of the internal cavity of the motor is saved, and the influence on the arrangement of stator coils is avoided; the balance ring design of the inner fan can also effectively solve the centrifugal problem when the rotor end ring rotates, and the rotor balance directly acts on the rotor end ring, so that the rotor end ring is ensured not to be eccentric, and the condition that the rotor end ring or a rotor core is not concentric when rotating is greatly reduced.
Description
Technical Field
The utility model relates to the technical field of motor heat dissipation structures, in particular to a motor rotor end ring fan structure.
Background
When the rotor in the motor works, a large amount of heat is generated, and if the heat in the motor cannot be timely emitted, the normal work of the motor can be seriously affected. At present, a cooling fan is generally fixed on a motor rotor shaft, and the cooling fan is driven by the rotor shaft to rotate, so that the inside of the motor is cooled.
The above-described conventional motor internal cooling means have the following two problems:
(1) If the cooling fan breaks down and needs to be replaced, the rotor shaft is easily damaged by disassembling the cooling fan, so that the working performance of the motor is affected;
(2) The cooling fan needs to occupy the internal space of the motor cavity, a mounting table is also required to be processed on the rotor shaft, and the cooling fan occupies the space of the inner ring of the stator coil, so that the arrangement of the stator coil is affected.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the motor rotor end ring inner fan structure, which is characterized in that the inner fan is arranged on the side surface of the rotor end ring, so that the inner fan is convenient to disassemble and maintain, and the damage of the inner fan to the rotor shaft caused by disassembly and assembly is avoided; meanwhile, the space of the internal cavity of the motor is saved, and the influence on the arrangement of the stator coils is avoided.
The technical scheme adopted by the utility model is as follows:
the utility model provides a motor rotor end ring inner fan structure, includes the pivot, the pivot middle part sets up the rotor core, a rotor end ring is connected respectively at rotor core both ends, rotor end ring is the rotor core one side dorsad and is passed through the detachable interior fan of connection of bolt, and the pivot rotates and drives the interior fan of left and right sides and rotate together.
Further, the inner fan comprises a mounting ring with a circular ring structure, one side end surface of the mounting ring is detachably connected with the rotor end ring through bolts, the other side end surface of the mounting ring is provided with a balance ring with the circular ring structure in parallel, the mounting ring and the balance ring are connected into a whole through a plurality of fan blades, and the fan blades are uniformly distributed along the circumferential direction.
Further, a plurality of mounting through holes are formed in the mounting ring and are evenly distributed along the circumferential direction, bolts used for connection are arranged in the mounting through holes, and the bolts penetrate through the mounting through holes and are connected to the rotor end ring.
Further, the fan blades are tangentially arranged.
Further, a plurality of balance threaded holes are formed in the balance ring, and the plurality of balance threaded holes are evenly distributed along the circumferential direction.
The beneficial effects of the utility model are as follows:
the inner fan is arranged on the side surface of the rotor end ring, so that the inner fan is convenient to disassemble and maintain, and the damage of the inner fan to the rotor shaft caused by disassembly and assembly is avoided; meanwhile, the space of the internal cavity of the motor is saved, and the influence on the arrangement of stator coils is avoided; the balance ring design of the inner fan can also effectively solve the centrifugal problem when the rotor end ring rotates, and the rotor balance directly acts on the rotor end ring, so that the rotor end ring is ensured not to be eccentric, and the condition that the rotor end ring or a rotor core is not concentric when rotating is greatly reduced.
Drawings
Fig. 1 is a perspective view of the present utility model.
Fig. 2 is a perspective view of an inner fan according to the present utility model.
Fig. 3 is a structural view of a fan blade arrangement of the present utility model.
Wherein: 1. a rotor core; 2. a rotor end ring; 3. an inner fan; 4. a rotating shaft; 5. a mounting ring; 6. fan blades; 7. a balance ring; 8. mounting through holes; 9. balance screw holes.
Detailed Description
The following describes specific embodiments of the present utility model with reference to the drawings.
As shown in fig. 1, a motor rotor end ring fan structure comprises a rotating shaft 4, a rotor core 1 is arranged in the middle of the rotating shaft 4, two ends of the rotor core 1 are respectively connected with a rotor end ring 2, one side of the rotor end ring 2 back to the rotor core 1 is detachably connected with an inner fan 3 through bolts, and when the motor rotor end ring fan structure works, the rotating shaft 4 rotates to drive the inner fans 3 on the left side and the right side to rotate together.
As shown in fig. 2, the inner fan 3 includes a mounting ring 5 with a circular ring structure, one side end surface of the mounting ring 5 is detachably connected with the rotor end ring 2 through bolts, the other side end surface of the mounting ring 5 is parallel with a balancing ring 7 with a circular ring structure, the mounting ring 5 and the balancing ring 7 are connected into a whole through a plurality of fan blades 6, and the fan blades 6 are uniformly distributed along the circumferential direction.
As shown in fig. 2, the mounting ring 5 is provided with a plurality of mounting through holes 8, and the plurality of mounting through holes 8 are uniformly distributed along the circumferential direction. Bolts for connection are arranged in the mounting through holes 8, and the bolts penetrate through the mounting through holes 8 and are connected to the rotor end ring 2.
As shown in fig. 3, the plurality of fan blades 6 are each disposed tangentially.
As shown in fig. 2, the balance ring 7 is provided with a plurality of balance screw holes 9, and the plurality of balance screw holes 9 are uniformly distributed along the circumferential direction. The balance screw holes 9 are used for connecting balance weights, and the balance of the two ends of the rotor is adjusted by configuring different numbers of the balance weights.
The inner fan 3 is connected to the rotor end ring 2 through the bolts, and can be directly loosened and disassembled for replacement when the inner fan 3 is replaced, a pressure rod is not needed, the aim of not damaging a rotating shaft is really achieved, and a large amount of coil arrangement space is saved because the inner fan 3 is arranged at two ends of the rotor end ring 2.
The design of the inner fan 3 can also effectively solve the centrifugal problem when the rotor end ring 2 rotates, the rotor balance directly acts on the rotor end ring 2, the rotor end ring 2 is ensured not to be eccentric, the non-concentricity of the rotor end ring 2 or the rotor iron core 1 during rotation is greatly reduced, the structure meets the requirements of most explosion-proof motors, such as an increased-safety type explosion-proof motor, a spark-free type explosion-proof motor, a positive pressure type explosion-proof motor and the like, and the common high-voltage motor has quite wide application range, small volume, reasonable design and convenient installation, disassembly and maintenance.
The above description is intended to illustrate the utility model and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the utility model.
Claims (5)
1. The utility model provides a motor rotor end ring fan structure, includes pivot (4), pivot (4) middle part sets up rotor core (1), rotor core (1) both ends connect a rotor end ring (2) respectively, its characterized in that: one side of the rotor end ring (2) back to the rotor core (1) is detachably connected with the inner fan (3) through bolts, and the rotating shaft (4) rotates to drive the inner fans (3) on the left side and the right side to rotate together.
2. A motor rotor end ring fan structure as claimed in claim 1, wherein: the inner fan (3) comprises a mounting ring (5) with a circular ring structure, one side end face of the mounting ring (5) is detachably connected with a rotor end ring (2) through bolts, the other side end face of the mounting ring (5) is provided with a balance ring (7) with the circular ring structure in parallel, the mounting ring (5) and the balance ring (7) are connected into a whole through a plurality of fan blades (6), and the fan blades (6) are uniformly distributed along the circumferential direction.
3. A motor rotor end ring fan structure as claimed in claim 2, wherein: the mounting ring (5) is provided with a plurality of mounting through holes (8), the plurality of mounting through holes (8) are uniformly distributed along the circumferential direction, bolts used for connection are arranged in the mounting through holes (8), and the bolts penetrate through the mounting through holes (8) and are connected to the rotor end ring (2).
4. A motor rotor end ring fan structure as claimed in claim 3, wherein: the fan blades (6) are tangentially arranged.
5. A motor rotor end ring fan structure as defined in claim 4, wherein: the balance ring (7) is provided with a plurality of balance threaded holes (9), and the plurality of balance threaded holes (9) are uniformly distributed along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321433329.8U CN220173047U (en) | 2023-06-07 | 2023-06-07 | Motor rotor end ring inner fan structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321433329.8U CN220173047U (en) | 2023-06-07 | 2023-06-07 | Motor rotor end ring inner fan structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220173047U true CN220173047U (en) | 2023-12-12 |
Family
ID=89060586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321433329.8U Active CN220173047U (en) | 2023-06-07 | 2023-06-07 | Motor rotor end ring inner fan structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220173047U (en) |
-
2023
- 2023-06-07 CN CN202321433329.8U patent/CN220173047U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104702073A (en) | Integrated external rotor permanent magnet motor for screw compressor | |
| CN204408102U (en) | Permagnetic synchronous motor and include the helical-lobe compressor of this permagnetic synchronous motor | |
| CN110094352B (en) | High-speed fan shafting structure and assembling method thereof | |
| CN220173047U (en) | Motor rotor end ring inner fan structure | |
| CN104753254A (en) | Permanent magnet synchronous motor and screw rod compressor containing permanent magnet synchronous motor | |
| CN209676079U (en) | A kind of permanent magnet synchronous motor of easy heat radiation | |
| CN110336434B (en) | Double-sided transmission permanent magnet eddy hysteresis coupling | |
| CN218868046U (en) | High-performance motor | |
| CN109586496B (en) | Motor rotating shaft structure, motor comprising same and heat dissipation method thereof | |
| CN217335350U (en) | Built-in permanent magnet motor rotor | |
| CN204156709U (en) | A kind of hybrid permanent magnet eddy-current coupling | |
| CN211819826U (en) | Mud pump driven by large-torque permanent magnet synchronous motor | |
| CN112600357A (en) | Motor and motor air cooling structure thereof | |
| CN219247615U (en) | Unbalanced positioning permanent magnet motor structure with cooling function | |
| CN217335263U (en) | High-efficiency energy-saving micromotor | |
| CN219691813U (en) | Cooling fan and air-cooled electric roller | |
| CN219893123U (en) | Dismantle convenient direct current brushless motor | |
| CN212360243U (en) | Direct-coupled axial flow fan with uniformly-distributed rear guide vane structure | |
| CN211183623U (en) | Asynchronous alternating current motor with good heat dissipation performance for production workshop | |
| CN219875309U (en) | Permanent magnet rotor for permanent magnet speed regulator | |
| CN220190557U (en) | Motor convenient to heat dissipation | |
| CN214014065U (en) | Double-air-cooled variable frequency speed regulation motor | |
| CN220435064U (en) | Low-noise combined electric fan | |
| CN211414562U (en) | Cooling structure of power head | |
| CN210839174U (en) | Cooling air duct structure of cooling stator for centrifugal compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |