Modularized brushless hollow cup high-speed ducted motor
By using a modular design and guide plate structure, the problem of airflow dispersion in existing ducted motors has been solved, achieving concentrated airflow output and high-speed air delivery, increasing air volume and speed, and reducing noise.
Patent Information
- Application Number
- CN202422980940.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-03
AI Technical Summary
The existing ducted motor housing uses an open structure, which leads to airflow dispersion, high noise, and severe air volume loss, making it impossible to achieve a high-speed air output effect.
The design incorporates a modular brushless hollow cup high-speed ducted motor, employing a combination structure of guide plates and fan blades. The fan blades are driven to rotate at high speed through electromagnetic repulsion, and the guide plates guide the concentrated output of airflow. The electromagnetic conversion efficiency is improved by combining three-phase hollow cup windings and a toroidal iron core.
It achieves concentrated airflow output, reduces airflow loss, ensures good air volume and speed, improves airflow efficiency, and reduces noise.
Smart Images
Figure CN223666184U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to motor technical field especially relates to a kind of modularization brushless air core cup high-speed ducted fan motor. BACKGROUND
[0002] With the continuous progress of science and technology and the continuous improvement of people's living quality, ducted fan motor is widely applied in hair dryer, handheld fan, micro dust collector and other products, and is a kind of DC brushless motor, compared with traditional brush motor, has higher efficiency and longer service life, the rotor of ducted fan motor has multiple permanent magnets, and the stator has multiple coils, the current of coil is controlled by electric control, so as to control the rotating speed and direction of ducted fan motor. The shell of the existing ducted fan motor is designed with an open structure, which can save material and reduce production cost, but the airflow is inevitably separated and guided to the side during use, resulting in dispersed airflow and high noise, which greatly reduces the air volume and cannot form high-speed air outlet effect. SUMMARY
[0003] The utility model discloses a kind of modularization brushless air core cup high-speed ducted fan motor, with good airflow guiding property, promote airflow concentrated output and form high-speed air outlet effect, reduce airflow loss, ensure good air volume and wind speed.
[0004] To achieve the above object, a kind of modularization brushless air core cup high-speed ducted fan motor of the utility model, including shell, stator device being arranged in shell, rotor device being movably arranged in stator device and driver being arranged in shell, the driver is electrically connected with stator device, to make rotor device rotate relative to stator device, the rotor device is provided with fan blade, the shell is provided with guide plate, the fan blade is spaced and oppositely arranged with guide plate.
[0005] Preferably, the rotor device further includes a main shaft, a limiting block disposed on the main shaft, a first bearing abutting against the limiting block, a spring disposed between the first bearing and the fan blade, and a magnet sleeved on the outside of the main shaft, the first bearing is sleeved on the outside of the main shaft, one end of the spring abuts against the first bearing, the other end of the spring abuts against the fan blade, and the fan blade is connected with the main shaft.
[0006] Preferably, the fan blade includes a protruding head portion, a barrel portion disposed in the protruding head portion, a rib disposed between the barrel portion and the protruding head portion, and a blade disposed outside the protruding head portion, the rib is provided with a plurality of ribs, and the plurality of ribs are circumferentially arranged around the outer wall of the barrel portion, and the main shaft is connected with the barrel portion.
[0007] Preferably, the blade is in the shape of a circular arc and extends upward along the direction of the circular arc, and the blade is provided with a plurality of blades, and the plurality of blades are circumferentially arranged around the outer wall of the protruding head portion.
[0008] Preferably, the stator device comprises a core support, an annular core sleeved outside the core support, a stator winding arranged inside the core support, and a second bearing, the core support is sleeved outside the first bearing, the stator winding is sleeved outside the magnet, the stator winding is electrically connected with the driver, the second bearing is sleeved outside the main shaft, and the first bearing and the second bearing are arranged in a spaced and opposite manner.
[0009] Preferably, the stator winding is a three-phase hollow cup winding.
[0010] Preferably, the inner wall of the fixed sleeve is provided with a stop plate, and the stop plate abuts against the outer wall of the core support.
[0011] Preferably, the guide plates are arranged in a plurality of circular arc shapes and extend downward along the circular arc direction, and the plurality of guide plates are arranged in a circumferential direction around the outer wall of the fixed sleeve.
[0012] Preferably, the end of the shell close to the driver is provided with a fixed claw, the inner wall of the fixed claw is provided with a bearing plate, the bearing plate abuts against the bottom of the driver, so that the fixed claw abuts against and clamps the top of the driver.
[0013] Preferably, the end of the fixed sleeve close to the fixed claw is provided with a containing cavity, and the second bearing is contained in the containing cavity.
[0014] The air flow guiding effect is good, the air flow is concentrated and output, the high-speed air outlet effect is formed, the air flow loss is reduced, and good air volume and air speed are ensured. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a structural schematic view of the utility model.
[0016] Figure 2 It is a structural schematic view of the hidden shell after the utility model.
[0017] Figure 3 It is a structural schematic view of the utility model.
[0018] Figure 4 It is a structural schematic view of one end of the shell of the utility model.
[0019] Figure 5 It is a structural schematic view of the other end of the shell of the utility model.
[0020] Figure 6 It is a structural schematic view of the fan blade of the utility model.
[0021] The reference signs comprise:
[0022] 1 - housing 11 - guide plate 12 - fixing sleeve
[0023] 13 - abutting plate 14 - fixing clamping jaw 15 - bearing plate
[0024] 16 - accommodating cavity
[0025] 2 - stator device 21 - core support 22 - annular core
[0026] 23 - stator winding 24 - second bearing
[0027] 3 - rotor device 31 - fan blade 311 - protruding head
[0028] 312 - barrel portion 313 - rib 314 - blade
[0029] 32 - main shaft 33 - limiting block 34 - first bearing
[0030] 35 - spring 36 - magnet
[0031] 4 - driver. DETAILED DESCRIPTION
[0032] The utility model is described in detail below in combination with the drawings.
[0033] As Figures 1 to 6 shown, the utility model relates to a modularized brushless hollow cup high-speed ducted motor, which comprises a housing 1, a stator device 2 arranged on the housing 1, a rotor device 3 movably arranged on the stator device 2, and a driver 4 arranged on the housing 1, the driver 4 is electrically connected with the stator device 2, so that the rotor device 3 rotates relative to the stator device 2, the rotor device 3 is provided with a fan blade 31, the housing 1 is provided with a guide plate 11, and the fan blade 31 is spaced apart from and arranged opposite to the guide plate 11.
[0034] When working, since the driver 4 is electrically connected with the stator device 2, when the driver 4 is connected with forward current, electromagnetic repulsion is generated between the stator device 2 and the rotor device 3, so that the rotor device 3 rotates relative to the stator device 2, thereby driving the fan blade 31 to rotate counterclockwise at high speed to form airflow, effectively converging the airflow into the housing 1, since the fan blade 31 is spaced apart from and arranged opposite to the guide plate 11, the airflow is further aggregated by the guidance of the guide plate 11 and then blown out at high speed, the guide plate 11 has obvious guiding effect on the airflow, effectively reducing the air volume loss and greatly improving the air outlet efficiency. The utility model has good airflow guiding property, promotes the concentrated output of the airflow and forms high-speed air outlet effect, reduces the airflow loss, and ensures good air volume and air speed.
[0035] The rotor device 3 of the embodiment further comprises a main shaft 32, a limiting block 33 arranged on the main shaft 32, a first bearing 34 abutting against the limiting block 33, a spring 35 arranged between the first bearing 34 and the fan blade 31, and a magnet 36 sleeved outside the main shaft 32. The first bearing 34 is sleeved outside the main shaft 32. One end of the spring 35 abuts against the first bearing 34, and the other end of the spring 35 abuts against the fan blade 31. The fan blade 31 is connected with the main shaft 32. Specifically, the fan blade 31 is connected with the main shaft 32, and is abutting against the first bearing 34 and the magnet 36 through the limiting block 33, so as to realize the stable limiting and safety protection of the first bearing 34 and the magnet 36, respectively. Since one end of the spring 35 abuts against the first bearing 34, and the other end of the spring 35 abuts against the fan blade 31, the inner ring position of the first bearing 34 is appropriately compressed through the elastic force of the spring 35, so as to reduce the play, help to reduce the noise in the rotating process of the fan blade 31, and enhance the structural stability. The play, also known as bearing clearance, is the movement amount of one of the inner ring or the outer ring of the fixed bearing relative to the fixed part in the radial or axial direction. When the play is too small, the working temperature of the bearing may be increased, the bearing cannot work normally, and even the rolling element may be stuck. When the play is too large, the working vibration may be large, and the noise may be large. Therefore, the appropriate and elastically variable play helps the normal work of the bearing and reduces the noise influence. The flexible and elastic adjusting force of the spring 35 is used to ensure that the inner ring of the bearing has an appropriate play, so as to ensure the normal operation of the bearing and the working stability of the product.
[0036] The fan blade 31 of the embodiment comprises a protruding head portion 311, a cylinder portion 312 arranged in the protruding head portion 311, a plurality of ribs 313 arranged between the cylinder portion 312 and the protruding head portion 311, and a blade 314 arranged outside the protruding head portion 311. The plurality of ribs 313 are arranged in the circumferential direction of the outer wall of the cylinder portion 312. The main shaft 32 is connected with the cylinder portion 312. Specifically, the protruding head portion 311 has an internal hollow structure. The cylinder portion 312 is located at the middle position of the protruding head portion 311. The blades 314 are uniformly arranged in the outer periphery of the protruding head portion 311. The plurality of ribs 313 are arranged in the circumferential direction of the outer wall of the cylinder portion 312, and are supported and held between the protruding head portion 311 and the cylinder portion 312. The structure has good stability, effectively supports and fixes the position of the cylinder portion 312, and improves the connection stability between the main shaft 32 and the cylinder portion 312.
[0037] The blades 314 of the embodiment are arranged in an arc shape and extend upward along the arc direction. Specifically, the plurality of blades 314 are arranged in a circumferential direction around the outer wall of the protruding head 311, and the blades 314 are arranged in an arc shape and extend upward along the arc direction, so that the airflow is guided from the external environment to the guide plate 11 of the shell 1 along the arc direction. Since the fan blades 31 are spaced apart from and opposite to the guide plate 11, the input airflow is further guided and converged by the guide plate 11, which significantly accelerates the airflow, thereby generating a strong airflow output at high speed.
[0038] The stator device 2 of the embodiment includes a core support 21, an annular core 22 arranged outside the core support 21, a stator winding 23 arranged inside the core support 21, and a second bearing 24. The core support 21 is arranged outside the first bearing 34, the stator winding 23 is arranged outside the magnet 36, the stator winding 23 is electrically connected to the driver 4, the second bearing 24 is arranged outside the main shaft 32, and the first bearing 34 and the second bearing 24 are spaced apart and opposite to each other. Specifically, since the stator winding 23 is electrically connected to the driver 4, a rotating magnetic field is generated after the stator winding 23 is energized. The rotating magnetic field and the magnet 36 arranged outside the main shaft 32 form an electromagnetic interaction, generating an induced electromotive force and a current, thereby forming an electromagnetic torque on the main shaft 32, so that the main shaft 32 is forced to rotate the blades 314. The annular core 22 is arranged outside the core support 21, the stator winding 23 is arranged inside the core support 21, the core support 21 is arranged outside the first bearing 34 to fix the position of the outer ring of the first bearing 34, and the first bearing 34 and the second bearing 24 are both arranged outside the main shaft 32, so that the first bearing 34 and the second bearing 24 are spaced apart and opposite to each other, thereby reducing friction, facilitating smooth and stable rotation of the main shaft 32, reducing energy consumption, and prolonging service life. The annular core 22 is arranged outside the core support 21 and placed in the shell 1. The annular core 22 can effectively transmit and concentrate the rotating magnetic field, better driving the blades 314 to rotate quickly. The annular core 22 can significantly increase the magnetic flux of the stator winding 23 through its magnetic conductivity, thereby achieving maximum conversion of electromagnetic power.
[0039] The stator winding 23 of the embodiment is a three-phase hollow cup winding. Specifically, as a preferred embodiment, the stator winding 23 adopts a three-phase hollow cup winding, which has the advantages of high efficiency, high torque, high speed, low noise, low vibration, good heat dissipation performance, compact structure, easy control, and suitability for various application fields.
[0040] The shell 1 of the embodiment is provided with a fixing sleeve 12, an inner wall of the fixing sleeve 12 is provided with abutting plates 13, the abutting plates 13 abut against an outer wall of an iron core support 21. Specifically, preferably, the abutting plates 13 are three, the three abutting plates 13 are circumferentially arranged around the inner wall of the fixing sleeve 12, and the three abutting plates 13 jointly abut against the outer wall of the annular iron core 22 from different directions, thereby fixing the annular iron core 22 in position in the fixing sleeve 12 and avoiding position deviation.
[0041] The guide plates 11 of the embodiment are circular arc-shaped and downwardly extend along the circular arc direction, and a plurality of guide plates 11 are circumferentially arranged around the outer wall of the fixing sleeve 12. Specifically, the guide plates 11 are circular arc-shaped and downwardly extend along the circular arc direction, when the blades 314 rotate, the airflow is rotated in the same direction, and since the circular arc direction of the guide plates 11 is opposite to the circular arc direction of the blades 314, the airflow flows along the circular arc structure of the guide plates 11, thereby obviously guiding the airflow by the guide plates 11, the energy loss is small, and the air outlet efficiency is greatly improved.
[0042] The shell 1 of the embodiment is provided with a fixing claw 14 close to one end of the driver 4, an inner wall of the fixing claw 14 is provided with a bearing plate 15, the bearing plate 15 abuts against the bottom of the driver 4, so that the fixing claw 14 abuts and clamps the top of the driver 4. Specifically, the driver 4 is placed on the bottom of the shell 1, the bearing plate 15 abuts against the bottom of the driver 4, and then the fixing claw 14 abuts and clamps the top of the driver 4, thereby stably positioning the driver 4 between the bearing plate 15 and the fixing claw 14, and the positioning effect is good.
[0043] The fixing sleeve 12 of the embodiment is provided with a containing cavity close to one end of the fixing claw 14, and the second bearing 24 is contained in the containing cavity. Specifically, the containing cavity is located at a middle position of the fixing sleeve 12, the containing cavity and the fixing sleeve 12 are in communication with each other, and the second bearing 24 is contained in the containing cavity, so that the structure is compact, the design is reasonable, and the space occupation is small.
[0044] The above is only a preferred embodiment of the utility model, and for ordinary skilled persons in the art, the specific implementation manner and application range can be changed according to the thought of the utility model, and the content of the specification should not be understood as the limitation of the utility model.
Claims
1. A modular brushless hollow cup high-speed ducted electric motor, characterized in that: The application relates to a fan, which comprises a shell, a stator device arranged in the shell, a rotor device movably arranged in the stator device, and a driver arranged in the shell and electrically connected with the stator device to drive the rotor device to rotate relative to the stator device, wherein the rotor device is provided with a fan blade, and the shell is provided with a guide plate, and the fan blade is arranged in a spaced and opposite manner with the guide plate.
2. The modular brushless hollow cup high-speed ducted electric motor of claim 1, wherein: The rotor device further comprises a main shaft, a limiting block arranged on the main shaft, a first bearing abutting against the limiting block, a spring arranged between the first bearing and the fan blade, and a magnet sleeved on the outside of the main shaft, wherein the first bearing is sleeved on the outside of the main shaft, one end of the spring abuts against the first bearing, the other end of the spring abuts against the fan blade, and the fan blade is connected with the main shaft.
3. The modular brushless hollow cup high-speed ducted electric motor of claim 2, wherein: The fan blade comprises a protruding head, a cylinder arranged in the protruding head, a rib arranged between the cylinder and the protruding head, and a blade arranged outside the protruding head, wherein the rib is arranged in a plurality of pieces, the plurality of ribs are arranged in a circumferential manner around the outer wall of the cylinder, and the main shaft is connected with the cylinder.
4. The modular brushless hollow cup high-speed ducted electric motor of claim 3, wherein: The blade is arranged in a circular arc shape and extends upwards along the circular arc direction, and the blade is arranged in a plurality of pieces, wherein the plurality of blades are arranged in a circumferential manner around the outer wall of the protruding head.
5. The modular brushless hollow cup high-speed ducted electric motor of claim 2, wherein: The stator device comprises an iron core support, an annular iron core sleeved on the outside of the iron core support, a stator winding arranged on the inside of the iron core support, and a second bearing, wherein the iron core support is sleeved on the outside of the first bearing, the stator winding is sleeved on the outside of the magnet, the stator winding is electrically connected with the driver, the second bearing is sleeved on the outside of the main shaft, and the first bearing and the second bearing are arranged in a spaced and opposite manner.
6. The modular brushless hollow cup high-speed ducted electric motor of claim 5, wherein: The stator winding is a three-phase hollow cup winding.
7. The modular brushless hollow cup high-speed ducted electric motor of claim 5, wherein: The shell is provided with a fixing sleeve, and the inner wall of the fixing sleeve is provided with an abutting plate abutting against the outer wall of the iron core support.
8. The modular brushless hollow cup high-speed ducted electric motor of claim 7, wherein: The guide plate is arranged in a circular arc shape and extends downwards along the circular arc direction, and the guide plate is arranged in a plurality of pieces, wherein the plurality of guide plates are arranged in a circumferential manner around the outer wall of the fixing sleeve.
9. The modular brushless hollow cup high-speed ducted electric motor of claim 7, wherein: The shell is provided with a fixing claw at one end close to the driver, the inner wall of the fixing claw is provided with a bearing plate abutting against the bottom of the driver to enable the fixing claw to abut against and hold the top of the driver.
10. The modular brushless hollow cup high-speed ducted electric motor of claim 9, wherein: The fixing sleeve is provided with a containing cavity at one end close to the fixing claw, and the second bearing is contained in the containing cavity.