CN210053258U - Rotor of heat radiation fan - Google Patents
Rotor of heat radiation fan Download PDFInfo
- Publication number
- CN210053258U CN210053258U CN201921411274.4U CN201921411274U CN210053258U CN 210053258 U CN210053258 U CN 210053258U CN 201921411274 U CN201921411274 U CN 201921411274U CN 210053258 U CN210053258 U CN 210053258U
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- China
- Prior art keywords
- rotor
- rotor core
- heat dissipation
- magnet mounting
- fan
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- 230000005855 radiation Effects 0.000 title description 2
- 230000017525 heat dissipation Effects 0.000 claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 230000001360 synchronised effect Effects 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 abstract description 12
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 3
- 150000002910 rare earth metals Chemical class 0.000 abstract description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a cooling fan rotor, which comprises a rotating shaft, wherein a rotor iron core is synchronously and rotatably connected with the rotating shaft; rotor core is the cylinder form, through the fixed cup joint on the rotation axis of the through-hole of seting up at its center, a plurality of heat dissipation through-holes have been seted up along circumference interval on the rotor core, heat dissipation through-hole runs through rotor core and sets up in the radial middle part position of rotor core along the axial, a plurality of magnet mounting grooves have been seted up along circumference interval to rotor core's outer fringe position, the corresponding rare earth magnet of installing in the magnet mounting groove, still be equipped with synchronous pivoted impeller structure with it at least in the one end of rotor core in order to be the inside heat dissipation cooling of motor better when rotating. The utility model discloses a cooling fan rotor, tip are equipped with the fan wheel structure, combine the heat dissipation through-hole, can drive the air flow effectively rotating the in-process, rotate produced heat with the motor and take away, play the effect of heat dissipation cooling better to guarantee the efficiency of the long-time work of fan, reduce the energy consumption.
Description
Technical Field
The utility model belongs to the technical field of the motor, concretely relates to cooling fan rotor.
Background
The fan has wide application, and is applied to the fields of various fan blade-shaped fans, various smoke and air channels, air-conditioning condenser cooling fans, automobile temperature control system inner units, outer unit cooling fans, computers, controller cooling fans and the like. The structure of the motor is that a motor rotor is used as energy output to be connected with an impeller and drives the impeller to rotate relative to a motor stator seat by a rotating shaft, so that work is applied to the outside. However, the continuous operation time of the fan is long, the temperature of the motor can be continuously increased due to long-time operation, the generated heat can increase the winding resistance in the stator of the motor, the energy consumption can be correspondingly increased, and the efficiency is reduced.
There is also research on this aspect in the prior art, for example, CN105141055A relates to connecting an aluminum ring at the end of a rotor core, and further plays a role in driving air to flow and cool the rotor through a protrusion on the aluminum ring during the rotation of the rotor, but the cooling efficacy corresponding to the structure of the aluminum ring needs to be further improved, and the connection between the aluminum ring and the core during manufacturing is also complex, and the connection effect is not easy to be guaranteed, and needs to be further optimized and improved.
Disclosure of Invention
The above-mentioned not enough to prior art, the to-be-solved technical problem of the utility model is to provide a cooling fan rotor, avoids the current bad problem of structure radiating effect, gains connection structure simple, and it is convenient to make, the better effect of heat dissipation cooling efficiency.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the cooling fan rotor comprises a rotating shaft, and a rotor iron core is connected to the rotating shaft in a synchronous rotating mode; the rotor core is cylindrical, and is fixedly sleeved on the rotating shaft through a through hole formed in the center of the rotor core, a plurality of heat dissipation through holes are formed in the rotor core at intervals along the circumferential direction, the heat dissipation through holes axially penetrate through the rotor core and are formed in the middle position of the rotor core in the radial direction, a plurality of magnet mounting grooves are formed in the outer edge position of the rotor core at intervals along the circumferential direction, rotor magnets are correspondingly mounted in the magnet mounting grooves, and a fan wheel structure which rotates synchronously with the rotor core is arranged at one end of the rotor core at least so as to better play a role in dissipating heat and reducing temperature when the rotor core rotates.
Further perfecting the technical scheme, the fan wheel structure comprises an inner hub and an outer hub which are coaxial, a plurality of fan blades are connected between the inner hub and the outer hub, and all the fan blades are uniformly distributed along the circumferential direction; the inner hub is fixedly sleeved on the rotating shaft through an inner hole formed in the center of the inner hub.
Furthermore, the fan blades are strip-shaped blades and extend along the radial direction, two ends of each fan blade are respectively connected with the inner hub and the outer hub, the cross section of each fan blade is in the shape of an isosceles triangle, and one end of a vertex angle of each isosceles triangle faces the direction far away from the rotor core.
Furthermore, all the heat dissipation through holes are uniformly distributed along the circumferential direction, and the number of the fan blades is larger than that of the heat dissipation through holes.
Further, the outer diameter of the inner hub is smaller than the circumscribed circles of any two heat dissipation through holes.
Further, the magnet mounting groove penetrates through the rotor core along the axial direction, the outer diameter of the outer hub corresponds to the outer diameter of the rotor core, the end face, facing the rotor core, of the outer hub is attached to the corresponding end face of the rotor core, and the outer hub completely covers the opening of the magnet mounting groove in the corresponding end face of the rotor core.
Furthermore, all the magnet mounting grooves are uniformly distributed along the circumferential direction, the radial sections of the magnet mounting grooves are rectangular, the long sides of the magnet mounting grooves are tangent to the circle where the magnet mounting grooves are circumferentially arranged, and the tangent points are located at the middle points of the long sides.
Further, the rotor magnet has a shape corresponding to the magnet mounting groove.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a cooling fan rotor, tip are equipped with the fan wheel structure, combine the heat dissipation through-hole of seting up at rotor core middle part, can drive the air flow effectively rotating the in-process, rotate produced heat with the motor and take away, play the effect of heat dissipation cooling to the motor better to guarantee the efficiency of long-time work, reduce the energy consumption.
2. The heat dissipation through hole of the rotor of the heat dissipation fan can reduce weight and is beneficial to structural balance, and the rotor magnet is circumferentially arranged at the outer edge to effectively ensure the rotation effect; and the connecting structure is simple and convenient to manufacture.
Drawings
FIG. 1-axial side view of a cooling fan rotor of an embodiment;
FIG. 2-front view of a cooling fan rotor of an embodiment;
3-the right side view of FIG. 2;
the rotor comprises a rotating shaft 1, a rotor iron core 2, a heat dissipation through hole 21, a magnet mounting groove 22, a rotor magnet 3, a fan wheel structure 4, an inner hub 41, an outer hub 42 and fan blades 43.
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1-3, a cooling fan rotor according to an embodiment includes a rotating shaft 1, and a rotor core 2 is rotatably connected to the rotating shaft 1 in synchronization therewith; rotor core 2 is the cylinder form, through the through-hole that its center was seted up, coaxial and fixed cover connect on rotation axis 1, can add the keyway cooperation in order to guarantee synchronous pivoted reliability when necessary, rotor core 2 is last to have seted up a plurality of heat dissipation through-holes 21 along the circumference interval, and heat dissipation through-hole 21 also can play the effect of lightening whole weight, heat dissipation through-hole 21 runs through rotor core 2 along the axial and sets up in rotor core 2 radial middle part position, and rotor core 2's outer fringe has seted up a plurality of magnet mounting grooves 22 along the circumference interval, correspond in the magnet mounting groove 22 and install rotor magnet 3, still be equipped with synchronous pivoted fan wheel structure 4 with it at least in rotor core 2's one end in order to play the effect of heat dissipation cooling for the motor inside better when rotating, the form that this embodiment indicates that one end is equipped with fan wheel structure 4.
The cooling fan rotor of the embodiment sets up heat dissipation through-hole 21 in rotor core 2 middle part, combines the impeller structure 4 of tip, can drive the air flow effectively rotating the in-process, takes away the produced heat of motor rotation, plays the effect to the motor (including the outside around the stator that has the copper line) heat dissipation cooling better to guarantee the efficiency of the long-time work of fan, reduce the energy consumption. The heat dissipation through hole 21 is formed in the middle of the rotor, so that weight reduction can be achieved, structural balance is facilitated, and the rotor magnet 3 is circumferentially arranged on the outer edge, so that the rotating effect can be effectively guaranteed. During implementation, the impeller structure 4 can be fixedly connected to the rotating shaft 1 or connected to the end face of the rotor core 2, the rotor core 2 can be formed by laminating a plurality of silicon steel sheets, the rotor magnet 3 can be a rare-earth magnet and fixedly embedded in the magnet mounting groove 22, and the rare-earth magnet can be bonded by high-temperature-resistant high-strength glue when necessary.
The fan wheel structure 4 comprises an inner hub 41 and an outer hub 42 which are coaxial, a plurality of fan blades 43 are connected between the inner hub 41 and the outer hub 42, and all the fan blades 43 are uniformly distributed along the circumferential direction; the inner hub 41 is fixedly sleeved on the rotating shaft 1 through an inner hole formed in the center of the inner hub. In practice, the blades 43, the inner hub 41 and the outer hub 42 are integrally formed, and the material may be selected from hard plastics, or die-cast aluminum or powder metallurgy. The inner hole of the inner hub 41 is in interference fit with the rotating shaft 1, and key slot matching or transverse pin penetrating can be added to achieve better fixed connection when needed, so that the connecting structure is simple and convenient to manufacture.
The fan blades 43 are elongated blades extending along the radial direction, both ends of the elongated blades are respectively connected to the inner hub 41 and the outer hub 42, the cross-sectional shapes of the elongated blades are isosceles triangles, and one end of a vertex angle of each isosceles triangle faces a direction away from the rotor core 2. The fan blades 43 can more effectively drive the air to flow. All the heat dissipating through holes 21 are uniformly distributed in the circumferential direction, the number of the fan blades 43 is greater than that of the heat dissipating through holes 21, and the outer diameter of the inner hub 41 is smaller than the circumscribed circle of all the heat dissipating through holes 21 to avoid blocking the air flow. The number of the heat dissipation through holes 21 is six, and eight fan blades 43 are arranged, so that the axial fluidity of air is improved, and the cooling effect is improved.
Wherein, magnet mounting groove 22 runs through rotor core 2 along the axial, the external diameter of outer hub 42 equals with rotor core 2's external diameter, and outer hub 42 pastes with rotor core 2's corresponding terminal surface towards rotor core 2's terminal surface, and outer hub 42 is great at radial ascending width, is enough to cover magnet mounting groove 22 completely at rotor core 2's the opening on the corresponding terminal surface (run through the export), certainly in the value of outer hub 42 internal diameter, also with do not cover heat dissipation through-hole 21 and prefer. Therefore, on the basis of ensuring the heat dissipation and cooling effects, the impeller can limit the axial position of the rotor magnet 3 and avoid loosening and falling off.
All the magnet mounting grooves 22 are uniformly distributed along the circumferential direction, the radial sections of the magnet mounting grooves 22 are rectangular, the long sides of the magnet mounting grooves are tangent to the circle where the magnet mounting grooves 22 are circumferentially arranged, and the tangent points are located at the middle points of the long sides. The rotor magnet 3 has a shape corresponding to the magnet mounting groove 22. Therefore, relative to the arc-shaped structural part, the manufacturing difficulty can be reduced, and the overall cost is reduced.
Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (8)
1. The cooling fan rotor comprises a rotating shaft, and a rotor iron core is connected to the rotating shaft in a synchronous rotating mode; the method is characterized in that: the rotor core is cylindrical, and is fixedly sleeved on the rotating shaft through a through hole formed in the center of the rotor core, a plurality of heat dissipation through holes are formed in the rotor core at intervals along the circumferential direction, the heat dissipation through holes axially penetrate through the rotor core and are formed in the middle position of the rotor core in the radial direction, a plurality of magnet mounting grooves are formed in the outer edge position of the rotor core at intervals along the circumferential direction, rotor magnets are correspondingly mounted in the magnet mounting grooves, and a fan wheel structure which rotates synchronously with the rotor core is arranged at one end of the rotor core at least so as to better play a role in dissipating heat and reducing temperature when the rotor core rotates.
2. The cooling fan rotor as claimed in claim 1, wherein: the fan wheel structure comprises an inner hub and an outer hub which are coaxial, a plurality of fan blades are connected between the inner hub and the outer hub, and all the fan blades are uniformly distributed along the circumferential direction; the inner hub is fixedly sleeved on the rotating shaft through an inner hole formed in the center of the inner hub.
3. The cooling fan rotor as claimed in claim 2, wherein: the fan blades are strip-shaped blades and extend along the radial direction, the two ends of the fan blades are respectively connected with the inner hub and the outer hub, the cross section of each fan blade is in the shape of an isosceles triangle, and one end of the vertex angle of each isosceles triangle faces the direction far away from the rotor core.
4. The cooling fan rotor as claimed in claim 2, wherein: all the heat dissipation through holes are uniformly distributed along the circumferential direction, and the number of the fan blades is larger than that of the heat dissipation through holes.
5. The cooling fan rotor as claimed in claim 2, wherein: the outer diameter of the inner hub is smaller than the circumscribed circles of any two heat dissipation through holes.
6. The cooling fan rotor as claimed in claim 2, wherein: the magnet mounting groove runs through rotor core along the axial, the external diameter of outer wheel hub corresponds with rotor core's external diameter, and outer wheel hub pastes with rotor core's the terminal surface that corresponds towards rotor core's terminal surface mutually, and outer wheel hub covers the opening of magnet mounting groove on rotor core's the terminal surface that corresponds completely.
7. The cooling fan rotor as claimed in claim 6, wherein: all magnet mounting grooves are uniformly distributed along the circumferential direction, the radial sections of the magnet mounting grooves are rectangular, the long sides of the magnet mounting grooves are tangent to the circle where the magnet mounting grooves are circumferentially arranged, and the tangent points are located at the middle points of the long sides.
8. The cooling fan rotor as claimed in claim 7, wherein: the rotor magnet is shaped to correspond to the magnet mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921411274.4U CN210053258U (en) | 2019-08-28 | 2019-08-28 | Rotor of heat radiation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921411274.4U CN210053258U (en) | 2019-08-28 | 2019-08-28 | Rotor of heat radiation fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210053258U true CN210053258U (en) | 2020-02-11 |
Family
ID=69399043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921411274.4U Active CN210053258U (en) | 2019-08-28 | 2019-08-28 | Rotor of heat radiation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210053258U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431324A (en) * | 2020-04-28 | 2020-07-17 | 上海电气集团股份有限公司 | Water-cooled motor |
| GB2610218A (en) * | 2021-08-27 | 2023-03-01 | Cummins Generator Technologies | Fan for a generator |
| FR3128078A1 (en) * | 2021-10-12 | 2023-04-14 | Nidec Psa Emotors | Flange for rotating electrical machine |
-
2019
- 2019-08-28 CN CN201921411274.4U patent/CN210053258U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431324A (en) * | 2020-04-28 | 2020-07-17 | 上海电气集团股份有限公司 | Water-cooled motor |
| GB2610218A (en) * | 2021-08-27 | 2023-03-01 | Cummins Generator Technologies | Fan for a generator |
| FR3128078A1 (en) * | 2021-10-12 | 2023-04-14 | Nidec Psa Emotors | Flange for rotating electrical machine |
| WO2023062307A1 (en) * | 2021-10-12 | 2023-04-20 | Nidec Psa Emotors | End shield for a rotary electric machine |
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