CN210517929U - Brushless inner rotor motor - Google Patents
Brushless inner rotor motor Download PDFInfo
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- CN210517929U CN210517929U CN201921773028.3U CN201921773028U CN210517929U CN 210517929 U CN210517929 U CN 210517929U CN 201921773028 U CN201921773028 U CN 201921773028U CN 210517929 U CN210517929 U CN 210517929U
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Abstract
The utility model discloses a brushless inner rotor motor, which comprises a motor shaft, a stator and a rotor; the rotor is rotatably arranged at the inner side of the stator; one side of the rotor is provided with a fan blade; the center of the rotor is transversely provided with a shaft hole, and a motor shaft is inserted into the shaft hole; the outer side of the shaft hole is provided with an air port which is arranged on the rotor along the axial direction of the motor shaft; a triangular hole is arranged between the air port and the shaft hole, the position of the triangular hole corresponds to the position of the air port on the outer side of the triangular hole, and the triangular hole is formed in the rotor; the brushless inner rotor motor of the utility model can realize ventilation and heat dissipation of the motor by arranging the through air ports and the triangular holes on the rotor, effectively improve the heat dissipation effect of the brushless inner rotor motor, cool the motor, and the motor can have larger power due to good cooling and heat dissipation effects; in addition, the weight of the rotor is reduced by arranging the air ports and the triangular holes on the rotor, the inertia force of the rotor is reduced after the weight of the rotor is reduced, the rotating speed of the motor is increased, the power consumption of the motor is lower, and the energy-saving and environment-friendly effects are achieved.
Description
Technical Field
The utility model relates to a motor especially relates to a brushless inner rotor motor.
Background
Brushless motors have been widely used in recent years, and compared with conventional brush motors, brushless motors have the advantages of low noise, high energy efficiency, durability, and the like; however, the brushless motor in the prior art often has the defect of insufficient heat dissipation due to the fact that a large amount of heat is released in the operation process of the brushless motor, and the upper limit of the power of the brushless motor is limited due to poor heat dissipation effect; in addition, the brushless motor in the prior art has high power consumption in the running process and is not energy-saving.
SUMMERY OF THE UTILITY MODEL
In order to solve the disadvantages of the prior art, the utility model provides a brushless inner rotor motor.
In order to solve the technical problem, the utility model discloses a technical scheme is: a brushless inner rotor motor comprises a motor shaft, a stator and a rotor; the rotor is rotatably arranged at the inner side of the stator; one side of the rotor is provided with a fan blade; the center of the rotor is transversely provided with a shaft hole, and a motor shaft is inserted into the shaft hole; a first bearing and a second bearing are respectively arranged at two ends of the motor shaft;
the outer side of the shaft hole is provided with an air port which is arranged on the rotor along the axial direction of the motor shaft; a triangular hole is arranged between the air port and the shaft hole, the position of the triangular hole corresponds to the position of the air port on the outer side of the triangular hole, and the triangular hole is formed in the rotor.
Furthermore, the triangular hole is a first triangular hole which is communicated with the air opening on the outer side of the first triangular hole.
Furthermore, the triangular hole is a second triangular hole, and the second triangular hole is spaced from the tuyere on the outer side of the second triangular hole.
Furthermore, the number of the air ports is multiple, and the air ports are symmetrical about the shaft hole; the triangular holes are multiple and are symmetrical about the shaft hole.
The brushless inner rotor motor of the utility model can realize ventilation and heat dissipation of the motor by arranging the through air ports and the triangular holes on the rotor, effectively improve the heat dissipation effect of the brushless inner rotor motor, cool the motor, and the motor can have larger power due to good cooling and heat dissipation effects; in addition, the weight of the rotor is reduced by arranging the air port and the triangular hole on the rotor, the inertia force of the rotor is reduced after the weight of the rotor is reduced, the rotating speed of the motor is increased, the power consumption of the motor is lower, and the energy-saving and environment-friendly effects are achieved.
Drawings
Fig. 1 is a schematic structural view of a brushless inner rotor motor.
FIG. 2 is a schematic cross-sectional view of a rotor with a first triangular hole.
FIG. 3 is a schematic cross-sectional view of a rotor with a second triangular hole.
FIG. 4 is a schematic diagram showing the position relationship between the second triangular hole and the magnetic induction lines of the motor magnetic field.
In the figure: 1. a motor shaft; 2. a first bearing; 3. a stator; 4. a rotor; 5. a fan blade; 6. a second bearing; 7. a shaft hole; 8. a tuyere; 9. a first triangular hole; 10. a second triangular hole; 11. and (4) magnetic induction lines.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a brushless inner rotor motor includes a motor shaft 1, a stator 3, a rotor 4; the rotor 4 is rotatably arranged inside the stator 3; one side of the rotor 4 is provided with a fan blade 5; a shaft hole 7 is transversely formed in the center of the rotor 4, and the motor shaft 1 is inserted into the shaft hole 7; a first bearing 2 and a second bearing 6 are respectively arranged at two ends of the motor shaft 1;
an air port 8 is arranged on the outer side of the shaft hole 7, and the air port 8 is arranged on the rotor 4 along the axial direction of the motor shaft 1; a triangular hole is arranged between the air port 8 and the shaft hole 7, the position of the triangular hole corresponds to the position of the air port 8 on the outer side of the triangular hole, and the triangular hole is formed in the rotor 4.
The triangular hole can be a first triangular hole 9 or a second triangular hole 10; as shown in figure 2, the triangular hole is a first triangular hole 9, and the first triangular hole 9 is communicated with the tuyere 8 on the outer side. As shown in fig. 3, the triangular hole is a second triangular hole 10, and the second triangular hole 10 has a gap with the tuyere 8 outside thereof.
The number of the air ports 8 is multiple, and the air ports are symmetrical about the shaft hole 7; the triangular holes are a plurality of which are symmetrical about the shaft hole 7.
A plurality of tuyeres, a plurality of triangle hole all make rotor 4's whole weight distribution even about shaft hole 7 symmetry sets up, guarantee rotor 4 stability in high-speed rotatory working process.
As shown in fig. 4, the triangular holes formed on the rotor 4 of the brushless inner rotor motor of the present invention are located in the blank areas of the magnetic induction lines of the motor magnetic field, and the magnetic force of the motor is not affected by the triangular holes formed in the blank areas of the magnetic induction lines; the utility model discloses a brushless inner rotor motor can realize the ventilation cooling of motor through the wind gap 8 and the triangular opening of seting up the link up on rotor 4, has improved the radiating effect of brushless inner rotor motor effectively, can cool off the motor, because the power upper limit of motor receives the restriction of temperature, the utility model discloses a brushless inner rotor motor can have bigger power because of its good event of cooling radiating effect, under the same volume size condition the utility model discloses a bigger efficiency of motor power is higher.
The motor of the utility model is provided with the tuyere 8 and the triangular hole on the rotor 4, thereby reducing the weight of the rotor 4; the motor in the prior art is not provided with the through hole on the inner rotor, the weight is heavier, the inertia force is large, the power consumption is larger and the current is larger when the rotating speed is the same as that of the motor of the utility model in the using process; and the utility model discloses a 4 weight of rotors of motor lighten its inertial force of back and diminish, the rotational speed of brushless inner rotor motor risees, when reaching the same rotational speed with prior art's motor the utility model discloses a power consumption of motor is lower, and the electric current is littleer, energy-concerving and environment-protective more.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.
Claims (4)
1. A brushless inner rotor motor, characterized in that: comprises a motor shaft (1), a stator (3) and a rotor (4); the rotor (4) is rotatably arranged on the inner side of the stator (3); one side of the rotor (4) is provided with a fan blade (5); the center of the rotor (4) is transversely provided with a shaft hole (7), and the motor shaft (1) is inserted into the shaft hole (7); a first bearing (2) and a second bearing (6) are respectively arranged at two ends of the motor shaft (1);
an air port (8) is formed in the outer side of the shaft hole (7), and the air port (8) is formed in the rotor (4) along the axial direction of the motor shaft (1); a triangular hole is arranged between the air port (8) and the shaft hole (7), the position of the triangular hole corresponds to the position of the air port (8) on the outer side of the triangular hole, and the triangular hole is formed in the rotor (4).
2. The brushless inner rotor motor of claim 1, wherein: the triangular hole is a first triangular hole (9), and the first triangular hole (9) is communicated with the air opening (8) on the outer side of the first triangular hole.
3. The brushless inner rotor motor of claim 1, wherein: the triangular hole is a second triangular hole (10), and the second triangular hole (10) is spaced from the tuyere (8) on the outer side of the second triangular hole.
4. A brushless inner rotor motor according to claim 2 or 3, wherein: the number of the air ports (8) is multiple, and the air ports are symmetrical about the shaft hole (7); the triangular holes are multiple and are symmetrical about the shaft hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921773028.3U CN210517929U (en) | 2019-10-22 | 2019-10-22 | Brushless inner rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921773028.3U CN210517929U (en) | 2019-10-22 | 2019-10-22 | Brushless inner rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210517929U true CN210517929U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921773028.3U Active CN210517929U (en) | 2019-10-22 | 2019-10-22 | Brushless inner rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210517929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601404A (en) * | 2019-10-22 | 2019-12-20 | 江苏铁锚工具有限公司 | Brushless inner rotor motor and application |
-
2019
- 2019-10-22 CN CN201921773028.3U patent/CN210517929U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601404A (en) * | 2019-10-22 | 2019-12-20 | 江苏铁锚工具有限公司 | Brushless inner rotor motor and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226100 No.88 tieanchor Road, Binhai New Area, Haimen City, Nantong City, Jiangsu Province Patentee after: Jiangsu anchor Tools Co.,Ltd. Address before: 226100 No.88 tieanchor Road, Binhai New Area, Haimen City, Nantong City, Jiangsu Province Patentee before: JIANGSU ANCHOR TOOLS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230816 Address after: 226100 Room 10, No. 88 Tiebao Road, Baochang Town, Haimen District, Nantong City, Jiangsu Province Patentee after: Jiangsu Tengya Iron Anchor Tool Co.,Ltd. Address before: 226100 No.88 tieanchor Road, Binhai New Area, Haimen City, Nantong City, Jiangsu Province Patentee before: Jiangsu anchor Tools Co.,Ltd. |