CN220934915U - Rotor structure with heat dissipation function - Google Patents
Rotor structure with heat dissipation function Download PDFInfo
- Publication number
- CN220934915U CN220934915U CN202322765698.3U CN202322765698U CN220934915U CN 220934915 U CN220934915 U CN 220934915U CN 202322765698 U CN202322765698 U CN 202322765698U CN 220934915 U CN220934915 U CN 220934915U
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- CN
- China
- Prior art keywords
- rotor
- end plate
- annular end
- ventilation
- rotor core
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 13
- 238000009423 ventilation Methods 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000004568 cement Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to the technical field of motor rotors, in particular to a rotor structure with a heat dissipation function, which comprises a rotating shaft, wherein a rotor core is fixedly sleeved outside the rotating shaft, annular end plates are arranged at two ends of the rotor core, the annular end plates are fixedly sleeved on the rotating shaft, and a plurality of ventilation grooves are formed in the end face of one end of each annular end plate, which faces the rotor core. According to the scheme, the rotor is formed by the rotating shaft, the rotor iron core, the annular end plate, the ventilation groove, the ventilation hole and the filling hole, when the rotor rotates, the ventilation groove and the ventilation hole which are communicated with each other form a forced air channel by utilizing the centrifugal force action of the rotor, air enters from the ventilation hole and flows out of the ventilation groove to take away the heat of the rotor iron core, so that the rotor is automatically cooled in the rotating process of the rotor, the self weight of the rotor can be reduced, the inertial acting force of the starting operation of the rotor is reduced, and the energy consumption of a motor is correspondingly reduced.
Description
Technical Field
The utility model relates to the technical field of motor rotors, in particular to a rotor structure with a heat dissipation function.
Background
The motor is a mechanical device based on electromagnetic induction effect to realize conversion between mechanical energy and electric energy characteristic conversion, and is inseparable from our daily life, the motor consists of a rotor and a stator, the rotor heats in the running process of the motor, the temperature rise of the rotor seriously weakens the performance of a permanent magnet in the rotor, the temperature rise of the rotor is higher, the permanent magnet has the magnetic loss risk, the service life of the motor is easily shortened, and therefore, the rotor needs to be cooled when the motor works.
The utility model provides a patent of CN110391718B, includes armature shaft, rotor core, louvre, first induced air impeller, first one-way bearing, second one-way bearing, heat abstractor and second induced air impeller, the outside of armature shaft is fixed with rotor core, the louvre has all been seted up to rotor core's corresponding both sides, first induced air impeller establishes in the outside of armature shaft through first one-way bearing housing, second induced air impeller establishes in the outside of armature shaft through second one-way bearing housing, and first induced air impeller and second induced air impeller are located the same side of rotor core, heat abstractor is installed near the opposite side of rotor core in the outside of armature shaft.
Although the device can quickly conduct away the heat from the rotor core to avoid local overheating of the rotor core, the induced air impellers are required to be arranged on the two sides of the rotor, so that the volume of the rotor is large, the self weight of the rotor is increased, the inertial acting force of the rotor for starting operation is also increased, and the energy consumption of the motor is increased.
Disclosure of utility model
In view of the above drawbacks, an object of the present utility model is to provide a rotor structure with heat dissipation function.
To achieve the purpose, the utility model adopts the following technical scheme:
The utility model provides a rotor structure with heat dissipation function, includes the pivot, the outside fixed cover of pivot is equipped with rotor core, rotor core's both ends are equipped with annular end plate, annular end plate fixed cover is located the pivot, annular end plate orientation rotor core's one end's terminal surface is equipped with a plurality of ventilation slots, the opening of ventilation slot runs through simultaneously annular end plate's outer periphery and orientation rotor core's terminal surface, the inner wall of ventilation slot is equipped with the ventilation hole, the ventilation hole runs through annular end plate's another terminal surface sets up, annular end plate's terminal surface still runs through and is equipped with a plurality of filling holes, a plurality of the filling hole with the ventilation slot is all followed annular end plate's circumferencial direction evenly distributed.
Preferably, the ventilation groove is a V-shaped groove, an included angle area is formed on the end face of the annular end plate by the V-shaped groove, and the filling hole is located in the included angle area.
Preferably, the side section of the filling hole is tapered, and the diameter of the end of the filling hole away from the rotor core is smaller than the diameter of the end of the filling hole close to the rotor core.
Preferably, the minimum distance from the edge of the filling hole to the center of the circle of the annular end plate is greater than the maximum distance from the edge of the vent hole to the center of the circle of the annular end plate.
Preferably, the annular end plate is made of a material with non-magnetic conductivity.
The technical scheme provided by the utility model can comprise the following beneficial effects:
1. According to the scheme, the rotor is formed by the rotating shaft, the rotor iron core, the annular end plate, the ventilation groove, the ventilation hole and the filling hole, when the rotor rotates, the ventilation groove and the ventilation hole which are communicated with each other form a forced air channel by utilizing the centrifugal force action of the rotor, air enters from the ventilation hole and flows out of the ventilation groove to take away the heat of the rotor iron core, so that the rotor is automatically cooled in the rotating process of the rotor, the self weight of the rotor can be reduced, the inertial acting force of the starting operation of the rotor is reduced, and the energy consumption of a motor is correspondingly reduced.
2. When the rotor is balanced, the balance cement is only needed to be plugged into the position of the filling hole needing to be weighted to compensate the unbalance degree of the direction, so that the dynamic balance is converted into the dynamic balance, the copper plate or the thick aluminum plate for the dynamic balance of the rotor core is saved, the production efficiency can be greatly improved, and special equipment for the weight removal is not needed.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a cross-sectional view of the overall structure of the present utility model;
fig. 3 is a schematic structural view of the annular end plate of the present utility model.
Wherein: 1. a rotating shaft; 2. a rotor core; 3. an annular end plate; 31. a ventilation groove; 32. a vent hole; 33. filling the hole.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The technical solution of the present utility model will be further described below with reference to fig. 1 to 3 of the accompanying drawings and by means of specific embodiments.
As shown in fig. 1-3, a rotor structure with heat dissipation function, including pivot 1, the outside fixed cover of pivot 1 is equipped with rotor core 2, rotor core 2's both ends are equipped with annular end plate 3, annular end plate 3 is fixed to be overlapped and is located pivot 1, annular end plate 3 orientation rotor core 2's one end's terminal surface is equipped with a plurality of ventilation slots 31, ventilation slot 31's opening runs through simultaneously annular end plate 3's outer periphery and orientation rotor core 2's terminal surface, ventilation slot 31's inner wall is equipped with ventilation hole 32, ventilation hole 32 runs through annular end plate 3's another terminal surface sets up, annular end plate 3's terminal surface still runs through and is equipped with a plurality of filling hole 33, a plurality of filling hole 33 with ventilation slot 31 is all followed annular end plate 3's circumferencial direction evenly distributed.
This scheme is through the rotor that pivot 1, rotor core 2, annular end plate 3, ventilation groove 31, ventilation hole 32 and filling hole 33 are constituteed, can utilize the centrifugal force effect of rotor to make the ventilation groove 31 and the ventilation hole 32 of intercommunication form forced air duct each other when the rotor is rotatory, the air gets into and takes away rotor core 2's heat from ventilation groove 31 outflow from ventilation hole 32 to automatic cooling to the rotor in the rotatory in-process of rotor, and can alleviate the self weight of rotor, also reduce the inertial force of rotor start-up operation, the energy consumption of corresponding reduction motor.
As shown in fig. 3, the ventilation groove 31 is a V-shaped groove, an included angle area is formed on the end surface of the annular end plate 3 in the V-shaped groove, and the filling hole 33 is located in the included angle area.
It is understood that the number of the ventilation slots 31 provided on the end surface of the annular end plate 3 can be maximized by disposing the filling holes 33 in the included angle region of the ventilation slots 31, thereby increasing the contact area between the air and the rotor core 2 and ensuring good cooling effect of the rotor.
Specifically, in the rotating process of the rotor, air in the ventilation groove 31 is thrown to the outer circumferential surface of the annular end plate 3 under the action of centrifugal force, the ventilation groove 31 is close to the rotor core 2, the flowing air can take away heat on the surface of the rotor core 2 to cool the rotor, as the ventilation groove 31 is communicated with the ventilation hole 32, negative pressure is formed at the inner end of the ventilation groove 31, the air continuously moves into the ventilation groove 31 from the ventilation groove 32 and then moves to the outer circumferential surface of the annular end plate 3 from the ventilation groove 31, the stator of the motor is arranged around the rotor, and therefore the air can flow to the stator from the outer circumferential surface of the annular end plate 3, heat on the surface of the stator is taken away, heat dissipation of the motor is facilitated, and the service life and reliability of the motor are improved.
It should be noted that, when the rotor is balanced through the filling hole 33, only the balance cement is needed to be inserted into the position of the filling hole 33 to be weighted to compensate the unbalance in the direction, so as to convert the dynamic balance of the rotor into the dynamic balance of the weight, thereby saving copper plates or thick aluminum plates for the dynamic balance of the rotor core 2, greatly improving the production efficiency and eliminating the need of special equipment of the weight.
As shown in fig. 2, the side section of the filling hole 33 is tapered, and the diameter of the end of the filling hole 33 away from the rotor core 2 is smaller than the diameter of the end of the filling hole 33 near the rotor core 2.
Specifically, the diameter of the end of the filling hole 33 away from the rotor core 2 is set smaller than the diameter of the end of the filling hole 33 close to the rotor core 2, so that the solidified balance cement is firmly fixed in the filling hole 33, and the balance cement in the filling hole 33 is prevented from being thrown out due to rotation of the rotor.
As shown in fig. 3, the minimum distance from the edge of the filling hole 33 to the center of the circular end plate 3 is greater than the maximum distance from the edge of the vent hole 32 to the center of the circular end plate 3.
Specifically, the minimum distance from the edge of the filling hole 33 to the center of the annular end plate 3 is set to be larger than the maximum distance from the edge of the vent hole 32 to the center of the annular end plate 3, and the vent hole 32 is surrounded by a plurality of filling holes 33, so that the path length of a forced air channel formed by the vent hole 32 and the vent slot 31 can be set longer, the area of air and the rotor core 2 is increased, and the rotor is ensured to have a good cooling effect.
As shown in fig. 3, the annular end plate 3 is made of a material with non-magnetic conductivity.
It should be noted that, considering the influence of magnetic leakage of the magnetic circuit, the annular end plate 3 is made of a non-magnetic material, and specifically, the annular end plate 3 may be made of an aluminum alloy, stainless steel, plastic, copper or other non-magnetic material.
The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (5)
1. The utility model provides a rotor structure with heat dissipation function which characterized in that: including pivot (1), the outside fixed cover of pivot (1) is equipped with rotor core (2), the both ends of rotor core (2) are equipped with annular end plate (3), annular end plate (3) are fixed to be overlapped and are located pivot (1), annular end plate (3) orientation the terminal surface of the one end of rotor core (2) is equipped with a plurality of ventilation slots (31), the opening of ventilation slot (31) runs through simultaneously annular end plate (3) outer circumference and orientation rotor core (2) terminal surface, the inner wall of ventilation slot (31) is equipped with ventilation hole (32), ventilation hole (32) run through annular end plate (3) another terminal surface sets up, annular end plate (3) terminal surface still runs through and is equipped with a plurality of filling hole (33), a plurality of filling hole (33) with ventilation slot (31) are all followed annular end plate (3)'s circumferencial direction evenly distributed.
2. A rotor structure with heat dissipation function according to claim 1, characterized in that: the ventilation groove (31) is a V-shaped groove, an included angle area is formed on the end face of the annular end plate (3) in the V-shaped groove, and the filling hole (33) is located in the included angle area.
3. A rotor structure with heat dissipation function according to claim 1, characterized in that: the side section of the filling hole (33) is tapered, and the diameter of the end of the filling hole (33) away from the rotor core (2) is smaller than the diameter of the end of the filling hole (33) close to the rotor core (2).
4. A rotor structure with heat dissipation function according to claim 1, characterized in that: the minimum distance from the edge of the filling hole (33) to the center of the circular end plate (3) is larger than the maximum distance from the edge of the vent hole (32) to the center of the circular end plate (3).
5. A rotor structure with heat dissipation function according to claim 1, characterized in that: the annular end plate (3) is made of a material with non-magnetic conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322765698.3U CN220934915U (en) | 2023-10-13 | 2023-10-13 | Rotor structure with heat dissipation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322765698.3U CN220934915U (en) | 2023-10-13 | 2023-10-13 | Rotor structure with heat dissipation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220934915U true CN220934915U (en) | 2024-05-10 |
Family
ID=90962527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322765698.3U Active CN220934915U (en) | 2023-10-13 | 2023-10-13 | Rotor structure with heat dissipation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220934915U (en) |
-
2023
- 2023-10-13 CN CN202322765698.3U patent/CN220934915U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |