Rotor punching sheet
By designing a multi-functional rotor punching plate, including punching grooves for generators and motors, and combining the design of positioning bumps and limiting grooves, the problem of only one rotor winding in the prior art is solved, and power generation is achieved The sharing of the machine and the motor reduces the volume and production cycle and improves the transient capability.
Patent Information
- Application Number
- CN202421652525.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The existing rotor punch can only place one rotor winding, which cannot meet the shared needs of generators and motors, resulting in large volume and long production cycles.
A rotor punch is designed, including multiple generator punch slots and motor punch slots, allowing the rotor windings of the generator and motor to be placed simultaneously, and the placement stability is improved by positioning bumps and limiting grooves.
The rotor punching piece shared by the generator and the motor is realized, reducing the volume, shortening the production cycle, and improving the transient capability of the generator.
Smart Images
Figure CN222484400U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motors, in particular to a rotor punching sheet. Background Art
[0002] The dual-purpose generator and motor motor currently used in the market is basically realized by two sets of cores. The generator rotor core is generally designed with salient poles, and the asynchronous motor is generally designed with a cast aluminum rotor. The stator core also needs to be designed in two sets, which is large in size and has a long production cycle. However, a dual-purpose generator and motor rotor punching is used. The rotor punching is a full circle and can be set with the stator punching to improve material utilization. The punching is used to place the generator rotor winding and the motor rotor winding at the same time, and the stator winding is shared. In this way, the volume can be reduced and the production cycle can be shortened under the same power. Summary of the invention
[0003] In view of the deficiencies of the prior art, the present invention provides a rotor punching sheet, which solves the problem that the existing rotor punching sheet can only hold one rotor winding.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rotor punching sheet, comprising a rotor punching sheet, a generator punching sheet slot and a motor punching sheet slot, wherein a plurality of generator punching sheet slots are provided on the rotor punching sheet, and a plurality of motor punching sheet slots are also provided between the gaps between the plurality of generator punching sheet slots on the rotor punching sheet.
[0005] Preferably, the generator punching slots and the motor punching slots are arranged on the outer circle of the rotor punching slots.
[0006] Preferably, the rotor punching sheet further includes a punching sheet inner hole, and the punching sheet inner hole is opened in the middle portion of the rotor punching sheet.
[0007] Preferably, the punching plate inner hole further includes a keyway, and a keyway is provided on the inner side wall of the punching plate inner hole.
[0008] Preferably, the rotor punching also includes fixing holes and ventilation holes; a plurality of fixing holes are provided between the generator punching slot and the inner hole of the rotor punching, and a plurality of ventilation holes are provided between the gaps between the plurality of fixing holes on the rotor punching.
[0009] Preferably, the rotor punching sheet further includes a positioning protrusion, and a positioning protrusion is further provided between the generator punching sheet slot and the inner hole of the rotor punching sheet and close to the periphery of the fixing hole, and the positioning protrusion is shaped as a raised conical cylinder.
[0010] Preferably, the rotor punching sheet further comprises a limiting groove, and the bottom cavity behind the protrusion of the positioning protrusion on the rotor punching sheet is constructed as the limiting groove.
[0011] Compared with the existing technology, the utility model has the following beneficial effects: the rotor punching of the utility model is arranged as a dual-purpose rotor punching, the generator rotor punching and the motor rotor punching share one punching, and the rotor winding of the motor can be used as the damping winding of the generator, thereby improving the transient capability of the generator. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the top plan structure of the rotor punching of this utility model.
[0013] Figure 2 This is a schematic diagram of the planar structure of the rotor punching sheet and the limiting groove of the present invention.
[0014] Markings in the figure: 1. rotor punching sheet, 2. generator punching sheet slot, 3. motor punching sheet slot, 4. keyway, 5. fixing hole, 6. ventilation hole, 7. punching sheet inner hole, 8. positioning protrusion, 9. limiting groove. DETAILED DESCRIPTION
[0015] like Figure 1 As shown; the utility model provides a technical solution: a rotor punching sheet, comprising a rotor punching sheet 1, a generator punching sheet slot 2 and a motor punching sheet slot 3, wherein a plurality of generator punching sheet slots 2 are provided on the rotor punching sheet 1, and a plurality of motor punching sheet slots 3 are provided between the gaps between the plurality of generator punching sheet slots 2 on the rotor punching sheet 1.
[0016] Furthermore, the generator sheet slots 2 and the motor sheet slots 3 are arranged on the outer circle of the rotor sheet 1, and the generator sheet slots 2 are provided with 24 slots on the rotor sheet 1, and the motor sheet slots 3 are provided with 28 slots on the rotor sheet 1; the generator sheet slots 2 are used to place the generator rotor winding, four groups of three concentric rotor coils of different sizes, and the motor sheet slots 3 are used to place 28 copper bars of the asynchronous motor rotor winding, so that the rotor sheet 1 can place the generator rotor winding and the asynchronous motor rotor winding at the same time, thereby improving the practicality of the rotor sheet 1; the rotor sheet 1 is a full-circle sheet, in order to avoid the generation of synchronous additional torque and electromagnetic noise when the motor is running; the stator sheet has 36 slots; that is, the 36 slots of the stator sheet and the 28 slots of the rotor sheet 1 are matched. The rotor sheet 1 is a 4-pole sheet, and both the generator and motor states have 4 poles.
[0017] Furthermore, the rotor punching 1 also includes a punching inner hole 7, and a punching inner hole 7 is opened in the middle part of the rotor punching 1; when the rotor punchings 1 are stacked, the keyway 4 is used to transmit torque and to mark when the rotor punchings 1 are swung, so as to ensure that the burr surfaces of the rotor punchings 1 are consistent. When the first rotor punching 1 and the second rotor punching 1 are stacked, the punching inner hole 7 and the keyway 4 of the first rotor punching 1 correspond to the punching inner hole 7 and the keyway 4 of the second rotor punching 1, so as to ensure that the first rotor punching 1 and the second rotor punching 1 remain aligned when they are stacked, and the positioning effect of the rotor punching 1 when the rotor punching 1 is swung is improved by setting the punching inner hole 7 and the keyway 4.
[0018] Furthermore, the punching plate inner hole 7 further includes a key groove 4, and a key groove 4 is provided on the inner side wall of the punching plate inner hole 7.
[0019] Furthermore, the rotor punching 1 also includes fixing holes 5 and ventilation holes 6; a plurality of fixing holes 5 are provided between the generator punching slot 2 and the punching inner hole 7 on the rotor punching 1, and a plurality of ventilation holes 6 are provided between the gaps between the plurality of fixing holes 5 on the rotor punching 1. There are 8 fixing holes 5 on the rotor punching 1, and there are 8 ventilation holes 6 on the rotor punching 1; the fixing holes 5 are used to place 8 screws for fixing the rotor punching 1 after the swinging, and the 8 ventilation holes 6 are provided to enhance the heat dissipation effect of the rotor punching 1.
[0020] like Figure 2 As shown; further, the rotor punching 1 also includes a positioning protrusion 8. A positioning protrusion 8 is also provided between the generator punching slot 2 and the punching inner hole 7 on the rotor punching 1, close to the outer periphery of the fixing hole 5. The positioning protrusion 8 is shaped as a raised conical cylinder, and four positioning protrusions 8 are provided on the rotor punching 1; the rotor punching 1 is provided with a positioning protrusion 8 and a limiting groove 9. When the rotor punchings 1 are stacked, the positioning protrusion 8 of the second rotor punching 1 is embedded in the bottom limiting groove 9 of the first rotor punching 1, so that the first rotor punching 1 and the second rotor punching 1 are not prone to sliding when they are stacked together. The positioning protrusion 8 and the limiting groove 9 are provided to improve the stability of the rotor punchings 1 when they are stacked.
[0021] Furthermore, the rotor punching sheet 1 further comprises a limiting groove 9 , and the bottom cavity after the positioning protrusion 8 on the rotor punching sheet 1 is raised is constructed into the limiting groove 9 .
[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention; the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A rotor punching sheet, comprising a rotor punching sheet (1), a generator punching sheet slot (2) and a motor punching sheet slot (3), characterized in that: The rotor punching sheet (1) is provided with a plurality of generator punching sheet slots (2), and a plurality of motor punching sheet slots (3) are provided between the gaps between the plurality of generator punching sheet slots (2) on the rotor punching sheet (1).
2. A rotor punching according to claim 1, characterized in that: The generator punching sheet slot (2) and the motor punching sheet slot (3) are arranged on the outer circle of the rotor punching sheet (1).
3. A rotor punching according to claim 2, characterized in that: The rotor punching sheet (1) further comprises a punching sheet inner hole (7), and a punching sheet inner hole (7) is provided in the middle portion of the rotor punching sheet (1).
4. A rotor punching according to claim 3, characterized in that: The punching plate inner hole (7) further comprises a keyway (4), and a keyway (4) is provided on the inner side wall of the punching plate inner hole (7).
5. A rotor punching according to claim 4, characterized in that: The rotor punching sheet (1) further comprises fixing holes (5) and ventilation holes (6); a plurality of fixing holes (5) are provided between the generator punching sheet slot (2) and the punching sheet inner hole (7) on the rotor punching sheet (1); and a plurality of ventilation holes (6) are provided between the gaps between the plurality of fixing holes (5) on the rotor punching sheet (1).
6. A rotor punching according to claim 5, characterized in that: The rotor punching sheet (1) also includes a positioning protrusion (8). A positioning protrusion (8) is also provided between the generator punching sheet slot (2) and the punching sheet inner hole (7) on the rotor punching sheet (1) and close to the periphery of the fixing hole (5). The positioning protrusion (8) is shaped as a raised conical cylinder.
7. A rotor punching according to claim 6, characterized in that: The rotor punching sheet (1) further comprises a limiting groove (9), and the bottom cavity after the positioning protrusion (8) on the rotor punching sheet (1) is raised is constructed into the limiting groove (9).