CN211063437U - Motor rotor structure with light weight and high heat dissipation performance - Google Patents
Motor rotor structure with light weight and high heat dissipation performance Download PDFInfo
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- CN211063437U CN211063437U CN201922303826.6U CN201922303826U CN211063437U CN 211063437 U CN211063437 U CN 211063437U CN 201922303826 U CN201922303826 U CN 201922303826U CN 211063437 U CN211063437 U CN 211063437U
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Abstract
The utility model discloses a motor rotor structure with light weight and high heat dissipation, which is characterized by comprising a rotating shaft and a rotor core arranged on the rotating shaft, wherein the rotor core is provided with a rotor winding, the rotor winding comprises a winding straight line part and a winding end part, the winding straight line part is arranged in a side wall axial groove of the rotor core along the axis, and the winding end part extends out of the rotor core; a plurality of rotating shaft rib plates for supporting the rotor core are uniformly arranged in the circumferential direction of the rotating shaft, a first winding support and a second winding support for supporting the end part of the winding are respectively arranged at two ends of the rotating shaft, and insulating rings are respectively sleeved on the first winding support and the second winding support in the circumferential direction; the winding end portions are clamped in clamping grooves of the insulating rings, and the outer peripheries of the two insulating rings are wound with weftless tapes wrapping the winding end portions. Compared with the prior art, the utility model discloses reduced the weight that end winding supported, the axial gap that two end winding supported has increased the air inlet clearance, has strengthened heat dispersion to also improve the job stabilization nature of motor.
Description
Technical Field
The utility model relates to the technical field of electric machines, concretely relates to electric motor rotor structure of light high heat dissipating.
Background
At present, in order to prevent the serious consequences that the centrifugal force generated by rotation causes the winding at the end part of the rotor to deform or even damage, the winding end part of the rotor is usually fixed at the end part supporting circumferential direction and is covered by winding a weftless tape, although the structural reliability is improved by the mode, the end part has poor heat dissipation and low efficiency, and particularly for a high-voltage and high-heat-load motor, the heat dissipation is poor, and the working performance of the motor can be directly influenced, so that the design of a light-weight and high-heat-dissipation motor rotor structure is very necessary.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a motor rotor structure of light high heat dissipating, this structure can increase the heat radiating area of winding overhang, plays good effect to reducing the inside temperature of motor, can strengthen the stability in use of motor.
In order to achieve the above object, the utility model provides a following technical scheme:
a motor rotor structure with light weight and high heat dissipation performance comprises a rotating shaft and a rotor core arranged on the rotating shaft, wherein a rotor winding is arranged on the rotor core and comprises a winding straight line part and a winding end part, the winding straight line part is installed in an axial groove of the side wall of the rotor core along the axis, and the winding end part extends out of the rotor core; a plurality of rotating shaft rib plates for supporting the rotor core are uniformly arranged in the circumferential direction of the rotating shaft, a first winding support and a second winding support for supporting the end part of the winding are respectively arranged at two ends of the rotating shaft, and insulating rings are respectively sleeved on the first winding support and the second winding support in the circumferential direction; the winding end portions are clamped in clamping grooves of the insulating rings, and weftless tapes wrapping the winding end portions are wound on the outer circumferential directions of the two insulating rings.
Preferably, one side of each of the plurality of rotating shaft rib plates, which faces the first winding support, is provided with a first step and a second step, and the length of the step surface of the first step in the axial direction is greater than the length of the step surface of the second step in the axial direction.
Preferably, the first step and the second step are provided with screw holes on the end faces of the rotating shaft in the radial direction, fixing ribs with the same number as that of the rotating shaft rib plates are circumferentially arranged in the first winding support and the second winding support, a plurality of mounting holes corresponding to the screw holes are formed in the fixing ribs, and bolts are connected between the mounting holes and the screw holes.
Preferably, the first steps are provided with axial convex ribs on the axial step surfaces of the rotating shaft; and one side of the fixing rib, which faces the axial convex rib, is provided with a rib groove matched with the axial convex rib.
Preferably, the rotor core is in interference fit with the rib plate of the rotating shaft.
Preferably, the axial heights of the first winding support and the second winding support are both 45mm, and the distance between the first winding support and the second winding support is 80 mm.
Preferably, the width of the weftless tape wound correspondingly by the first winding support is 60mm, the width of the weftless tape wound correspondingly by the second winding support is 60cm, and the distance between the two weftless tapes is 50 mm.
Compared with the prior art, the utility model, motor rotor structure has following beneficial effect: 1. 2 support rings are used, so that the structure is simple, and the weight is reduced; 2. gaps are formed among the weftless tapes wound around the circumferential direction of the support ring, and air flow can enter the rotor in the rotating process, so that the heat dissipation efficiency of the winding is improved; 3. an insulating support ring is used between the support ring and the winding, so that the electric clearance and the creepage distance are increased, and the high-voltage motor is particularly important.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the installation of rib plates and rotor cores of the motor shaft of the present invention;
fig. 3 is a schematic view of the motor end mounting structure of the present invention;
fig. 4 is a schematic view of the winding support structure of the present invention;
FIG. 5 is a schematic view of the rib structure of the rotating shaft of the present invention;
fig. 6 is a schematic view of the stepped surface structure of the rib plate of the rotating shaft of the present invention.
In fig. 1 to 6: 1. a rotating shaft; 2. a rotor core; 3. a rotor winding; 301. a winding straight portion; 302. a winding end portion; 4. a rotating shaft rib plate; 5. a first winding support; 6. a second winding support; 7. an insulating ring; 8. a weftless tape; 9. a first step; 10. a second step; 11. a screw hole; 12. a fixing rib; 13. mounting holes; 14. a bolt; 15. axial ribs; 16. and (4) rib grooves.
Detailed Description
Referring to fig. 1 to 4, according to an embodiment of the present invention, the present invention includes a rotating shaft 1 and a rotor core 2 disposed on the rotating shaft 1, the rotor core 2 is disposed with a rotor winding 3, the rotor winding 3 includes a winding straight portion 301 and a winding end portion 302, the winding straight portion 301 is installed in a side wall axial groove of the rotor core 2 along an axis, and the winding end portion 302 extends out of the rotor core 2; a plurality of rotating shaft rib plates 4 for supporting the rotor core 2 are uniformly arranged on the rotating shaft 1 in the circumferential direction, a first winding support 5 and a second winding support 6 for supporting the winding end 302 are respectively arranged at two ends of the rotating shaft 1, and insulating rings 7 are respectively sleeved on the first winding support 5 and the second winding support 6 in the circumferential direction; the winding end portions 302 are clamped in clamping grooves of the insulating rings 7, and the non-weft tapes 8 wrapping the winding end portions 302 are wound on the outer circumferential directions of the two insulating rings 7.
Referring to fig. 3, 5 and 6, according to an embodiment of the present invention, a plurality of the shaft rib plates 4 are provided with a first step 9 and a second step 10 on one side of the first winding support 5, respectively, and the length of the step surface of the first step 9 along the axial direction is greater than the length of the step surface of the second step 10 along the axial direction.
In the above embodiment, the first step 9 and the second step 10 are respectively arranged on one side of the rotation shaft rib plate 4 facing the first winding support 5, and the first winding support 5 and the second winding support 6 can be respectively fixed on the first step 9 and the second step 10; the first winding support 5 can be spaced apart from the second winding support 6 by making the step face length of the first step 9 in the axial direction larger than the step face length of the second step 10 in the axial direction.
Referring to fig. 3 to 6, according to the utility model discloses an embodiment, first step 9 with second step 10 is located all be provided with screw 11 on the terminal surface of the radial direction of pivot 1, first winding support 5 with the second winding supports 6 internal circumference be provided with the same fixed rib 12 of pivot gusset 4 figure, a plurality of all be provided with on the fixed rib 12 with the corresponding mounting hole 13 in screw 11 position, mounting hole 13 with be connected with bolt 14 between the screw 11.
In the above embodiment, the screw holes 11 are respectively formed on the end surfaces of the first step 9 and the second step 10 in the radial direction of the rotating shaft 1, the mounting holes 13 corresponding to the positions of the screw holes 11 are respectively formed on the fixing ribs 12, and the first winding support 5 and the second winding support 6 are fixed by the bolts 14, so that the first winding support 5 and the second winding support 6 can be stably connected to the two ends of the rotating shaft rib plate 4.
Referring to fig. 3 to 6, according to an embodiment of the present invention, the first step 9 is provided with axial ribs 15 on the axial step surface of the rotating shaft 1; the side of the fixing rib 12 facing the axial rib 15 is provided with a rib groove 16 matching with the axial rib 15.
In the above embodiment, the axial ribs 15 are provided on the axial step surfaces of the first step 9 and the second step 10 on the rotating shaft 1; one side of the fixing rib 12 facing the axial convex rib 15 is provided with a rib groove 16 matched with the axial convex rib 15, so that the first winding support 5 and the second winding support 6 can be clamped on the rotating shaft rib plate 4, and the stability of winding support installation is further enhanced.
Referring to fig. 2, according to an embodiment of the present invention, the rotor core 2 is interference-fitted with the shaft rib 4.
In the above embodiment, the rotor core 2 is in interference fit with the rib plate 4 of the rotating shaft, so that the rotor core 2 can be stably sleeved on the rotating shaft 1.
Referring to fig. 1 and 3, according to an embodiment of the present invention, the axial height of the first winding support 5 and the second winding support 6 is 45mm, and the distance between the first winding support 5 and the second winding support 6 is 80 mm.
In the above embodiment, the axial heights of the first winding support 5 and the second winding support 6 are both 45mm, and the distance between the first winding support 5 and the second winding support 6 is 80 mm.
Referring to fig. 1 and 3, according to an embodiment of the present invention, the width of the weftless tape 8 wound on the first winding support 5 is 60mm, the width of the weftless tape 8 wound on the second winding support 6 is 60cm, and the distance between the two weftless tapes 8 is 50 mm.
In the above embodiment, the width of the weftless tape 8 wound around the first winding support 5 is 60mm, the width of the weftless tape 8 wound around the second winding support 6 is 60cm, and the distance between the two weftless tapes 8 is 50mm, so that the air flow can be introduced to enhance the heat dissipation efficiency of the motor.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (7)
1. The motor rotor structure is characterized by comprising a rotating shaft (1) and a rotor core (2) arranged on the rotating shaft (1), wherein a rotor winding (3) is arranged on the rotor core (2), the rotor winding (3) comprises a winding straight line part (301) and a winding end part (302), the winding straight line part (301) is installed in a side wall axial groove of the rotor core (2) along an axis, and the winding end part (302) extends out of the rotor core (2); a plurality of rotating shaft rib plates (4) for supporting the rotor core (2) are uniformly arranged on the rotating shaft (1) in the circumferential direction, a first winding support (5) and a second winding support (6) for supporting the winding end part (302) are respectively arranged at two ends of the rotating shaft (1), and insulating rings (7) are respectively sleeved on the first winding support (5) and the second winding support (6) in the circumferential direction; the winding end parts (302) are clamped in clamping grooves of the insulating rings (7), and weftless tapes (8) wrapping the winding end parts (302) are wound on the outer peripheries of the two insulating rings (7).
2. The rotor structure of light-weight and high-heat-dissipation motor according to claim 1, wherein: one side of the rotating shaft rib plates (4) facing the first winding support (5) is provided with a first step (9) and a second step (10), and the length of the step surface of the first step (9) in the axial direction is larger than that of the step surface of the second step (10) in the axial direction.
3. The rotor structure of light-weight and high-heat-dissipation motor according to claim 2, wherein: first step (9) with second step (10) are located all be provided with screw (11) on the radial direction terminal surface of pivot (1), first winding support (5) with the internal periphery of second winding support (6) is provided with fixed rib (12) that pivot gusset (4) figure is the same, and is a plurality of all be provided with on fixed rib (12) with mounting hole (13) that screw (11) position corresponds, mounting hole (13) with be connected with bolt (14) between screw (11).
4. The rotor structure of light-weight and high-heat-dissipation motor according to claim 3, wherein: axial convex ribs (15) are arranged on the axial step surfaces of the first steps (9) on the rotating shaft (1); one side of the fixing rib (12) facing the axial convex rib (15) is provided with a rib groove (16) matched with the axial convex rib (15).
5. The rotor structure of light-weight and high-heat-dissipation motor according to claim 1, wherein: the rotor core (2) is in interference fit with the rotating shaft rib plate (4).
6. The rotor structure of light-weight and high-heat-dissipation motor according to claim 1, wherein: the axial height of the first winding support (5) and the axial height of the second winding support (6) are both 45mm, and the distance between the first winding support (5) and the second winding support (6) is 80 mm.
7. The rotor structure of the motor with light weight and high heat dissipation according to claim 6, wherein the width of the weftless tape (8) wound correspondingly to the first winding support (5) is 60mm, the width of the weftless tape (8) wound correspondingly to the second winding support (6) is 60cm, and the distance between the two weftless tapes (8) is 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922303826.6U CN211063437U (en) | 2019-12-20 | 2019-12-20 | Motor rotor structure with light weight and high heat dissipation performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922303826.6U CN211063437U (en) | 2019-12-20 | 2019-12-20 | Motor rotor structure with light weight and high heat dissipation performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211063437U true CN211063437U (en) | 2020-07-21 |
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ID=71593021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922303826.6U Active CN211063437U (en) | 2019-12-20 | 2019-12-20 | Motor rotor structure with light weight and high heat dissipation performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211063437U (en) |
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2019
- 2019-12-20 CN CN201922303826.6U patent/CN211063437U/en active Active
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