CN216751443U - Motor, cloud platform, unmanned aerial vehicle and handheld shooting equipment - Google Patents
Motor, cloud platform, unmanned aerial vehicle and handheld shooting equipment Download PDFInfo
- Publication number
- CN216751443U CN216751443U CN202122531749.7U CN202122531749U CN216751443U CN 216751443 U CN216751443 U CN 216751443U CN 202122531749 U CN202122531749 U CN 202122531749U CN 216751443 U CN216751443 U CN 216751443U
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- Prior art keywords
- hall
- ring
- motor
- magnetic
- magnetic ring
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 239000010941 cobalt Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000011324 bead Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000003313 weakening effect Effects 0.000 description 6
- 230000003993 interaction Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Images
Abstract
The application discloses motor, it includes the motor cabinet, the apparatus further comprises a rotating shaft, hall magnetic ring subassembly and hall sensor, the motor cabinet is equipped with the mounting hole, the mounting hole is rotatable to be worn to locate by the pivot, hall magnetic ring subassembly cover is located outside the pivot, hall sensor installs in the motor cabinet, hall sensor is corresponding with hall magnetic ring subassembly, hall sensor is used for detecting the position of pivot for the motor cabinet, wherein, hall magnetic ring subassembly includes hall magnetic ring and magnetic ring, hall magnetic ring and magnetic ring stack up the setting along the axial of pivot. The utility model also discloses a holder, an unmanned aerial vehicle and handheld shooting equipment, wherein the holder comprises the motor. The size of the Hall magnetic ring component and the motor can be made small.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a motor, a cradle head, an unmanned aerial vehicle and handheld shooting equipment.
Background
The Hall magnetic ring and the Hall sensor are matched to be used for detecting the position of the motor, specifically, the Hall magnetic ring is arranged on a rotating shaft of the motor, the Hall sensor is arranged on a motor base of the motor, and the Hall sensor detects the accurate position of the rotating shaft when the motor rotates by detecting the magnetic field change of the Hall magnetic ring.
However, the magnetic field generated by the hall magnetic ring interferes with other electronic devices, particularly, as the device is increasingly compact and lightweight, the distance between the hall magnetic ring and other electronic devices becomes smaller and smaller, and the interference problem becomes more serious.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides a motor, a holder, an unmanned aerial vehicle and a handheld shooting device.
A first aspect of the present invention provides a motor, including:
the motor base is provided with a mounting hole;
the rotating shaft is rotatably arranged in the mounting hole in a penetrating way;
the Hall magnetic ring assembly is sleeved outside the rotating shaft;
the Hall sensor is arranged on the motor base, corresponds to the Hall magnetic ring assembly and is used for detecting the position of the rotating shaft relative to the motor base;
the Hall magnetic ring assembly comprises a Hall magnetic ring and a magnetic conduction ring, and the Hall magnetic ring and the magnetic conduction ring are stacked in the axial direction of the rotating shaft.
The holder provided by the second aspect of the utility model comprises a first shaft arm and the motor, wherein the motor base is connected to the first shaft arm.
The unmanned aerial vehicle provided by the third aspect of the utility model comprises an unmanned aerial vehicle main body, a shooting device and the cloud deck, wherein the cloud deck is installed on the unmanned aerial vehicle main body, and the shooting device is installed on the cloud deck.
The handheld shooting equipment provided by the fourth aspect of the utility model comprises a handheld part, a shooting device and the cradle head, wherein the cradle head is installed on the handheld part, and the shooting device is installed on the cradle head.
According to the motor provided by the first aspect of the utility model, the hall magnet ring assembly comprises the hall magnet ring and the magnetic conduction ring, the hall magnet ring and the magnetic conduction ring are stacked in the axial direction of the rotating shaft, the magnetic conduction member can play a role in contracting magnetic lines of force, the distribution of the magnetic field is changed, the interference of the excessive divergence of the magnetic lines of force of the hall magnet ring on other electronic devices is effectively weakened, the weakening amplitude of the magnetic field in the direction of the hall sensor is reduced, the size of the hall magnet ring assembly can be reduced under the condition that the use requirement is met, and the size of the motor can be reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional structure diagram of a motor according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a bottom view of a motor according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a hall magnet ring assembly according to an embodiment of the present invention;
fig. 4 is an exploded schematic view of a hall magnet ring assembly according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a modified embodiment of a hall magnet ring assembly according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a handheld shooting device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.
As shown in fig. 1 to 3, an embodiment of the present invention provides a motor 100, where the proposed motor 100 includes a motor base 10, a rotating shaft 20, a hall magnetic ring assembly 30 and a hall sensor 40, the motor base 10 is provided with a mounting hole 11, the rotating shaft 20 is rotatably disposed through the mounting hole 11, the hall magnetic ring assembly 30 is sleeved outside the rotating shaft 20, the hall sensor 40 is mounted on the motor base 10, a hall sensor 41 corresponds to the hall magnetic ring assembly 30, and the hall sensor 41 is used for detecting a position of the rotating shaft 20 relative to the motor base 10, where the hall magnetic ring assembly 30 includes a hall magnetic ring 31 and a magnetic conductive ring 32, and the hall magnetic ring 31 and the magnetic conductive ring 32 are stacked in an axial direction of the rotating shaft 20.
The motor 100 provided by the embodiment, the hall magnet ring assembly 30 comprises the hall magnet ring 31 and the magnetic conductive ring 32, the hall magnet ring 31 and the magnetic conductive ring 32 are stacked along the axial direction of the rotating shaft 20, the magnetic conductive member can play a role of contracting magnetic lines of force, the distribution of the magnetic field is changed, the magnetic lines of force effectively weakening the hall magnet ring 31 are excessively dispersed to interfere with other electronic devices, meanwhile, the magnetic field weakening amplitude in the direction of the hall sensor 41 is reduced, the size of the hall magnet ring assembly 30 can be reduced under the condition of meeting the use requirement, and the size of the motor 100 can be reduced.
In some embodiments, the motor 100 further includes a circuit board (not shown) mounted to the motor base 10, and the hall sensor 40 is mounted to the circuit board.
In some embodiments, the hall sensor 41 is disposed outside the hall magnetic ring assembly 30, and the hall sensor 41 is located on a plane where an interface E of the hall magnetic ring 31 and the magnetic conductive ring 32 is located. The interface E of the hall magnetic ring 31 and the magnetic conductive ring 32 has a strong magnetic field, and the hall sensor 41 is arranged on the plane where the interface E is located, so that the detection accuracy of the hall sensor 40 can be improved.
As shown in fig. 3, in some embodiments, the hall magnet ring 31 has a thickness of M1The thickness of the magnetic conductive ring 32 is M2Wherein M is2/M1Not less than 0.5. Preferably, M2/M10.5-1.5. Further, M2/M1The value is 0.8-1.2. Further, M2/M1The value is 1.0 or 1.2. When the detection shows that the ratio of the thickness of the magnetic conductive ring 32 to the thickness of the hall magnetic ring 31 is greater than or equal to 0.5, the magnetic conductive ring 32 can greatly reduce the interference to the external magnetic field and reduce the weakening amplitude of the magnetic field in the direction of the hall sensor 41 under the condition of meeting the size design requirement.
As shown in fig. 4, in some embodiments, the area enclosed by the outer edge and the inner edge of the hall magnetic ring 31 is S1The area enclosed by the outer edge and the inner edge of the magnetic conductive ring 32 is S2Wherein S is2/S10.5-1.5. Preferably, S2/S1The value is 0.8-1.2. Further, S2/S1The value is 1.0. Indicating S by detection2And S1The ratio of (1) is 0.5-1.5, and under the condition of meeting the size design requirement, the magnetic conductive ring 32 can greatly reduce the interference to the external magnetic field and reduce the weakening amplitude of the magnetic field in the direction of the hall sensor 41.
In some embodiments, the hall magnetic ring 31 and the magnetic conductive ring 32 are both circular rings, the outer diameter of the hall magnetic ring 31 is the same as the outer diameter of the magnetic conductive ring 32, and the inner diameter of the hall magnetic ring 31 is the same as the inner diameter of the magnetic conductive ring 32. Of course, both the hall magnetic ring 31 and the magnetic conductive ring 32 are circular rings, and are not limited to be circular rings, and may also be triangular, rectangular, oval, polygonal or other irregular shapes, which is determined according to actual design requirements.
In some embodiments, the flux ring 32 is a flux ring 32 made of one of iron, cobalt, nickel, and stainless steel.
In a contrast test, the first test adopts the hall magnetic ring 31 with the outer diameter of 8mm, the inner diameter of 3mm and the thickness of 1.2mmd, the second test adds the magnetic rings with the outer diameter of 8mm, the inner diameter of 3mm and the thickness of 1mm on the basis of the hall magnetic ring adopted by the first test, and the first test and the second test detect the magnetic field amplitude in the Z direction, the interference point magnetic field amplitude in the Z direction and the ratio of the detection point magnetic field amplitude in the Z direction and the interference point magnetic field amplitude in the Z direction are as follows:
| detecting point Z-direction magnetic field amplitude | Interference point Z-direction magnetic field amplitude | Ratio of amplitudes | |
| Test No.) | 51 | 5.7 | 9 |
| Test No. two | 24.1 | 0.94 | 25.6 |
As can be seen from the above table, by adding the magnetic conductive ring, the amplitude of the magnetic field in the Z direction of the interference point is greatly reduced, and the amplitude of the magnetic field in the Z direction of the detection point is also reduced, but the reduction degree of the amplitude of the magnetic field in the Z direction of the detection point is much smaller than that of the magnetic field in the Z direction of the interference point.
In some embodiments, the side of the magnetic conductive ring 32 away from the hall magnetic ring 31 is provided with an electromagnetic shielding layer. By arranging the electromagnetic shielding layer, the influence of the magnetic field of the hall magnetic ring 31 on other electronic devices can be further reduced. Optionally, the electromagnetic shielding layer is a nanocrystalline layer or a soft magnetic layer or a silica gel layer.
As shown in fig. 1 and 2, in some embodiments, the proposed electric machine 100 is an external rotor electric machine 100, the electric machine 100 further includes a stator 50 and a rotor 60, the stator 50 is mounted to the motor base 10, the stator 50 includes a core 51 and a plurality of windings 52, the core 51 includes an annular yoke 511 and a plurality of stator teeth 512, the annular yoke 511 is mounted to the motor base 10, the plurality of stator teeth 512 are spaced around the annular yoke 511, and each stator tooth 512 is wound with one winding 52. Rotor 60 is installed in pivot 20, and rotor 60 includes end cover 61, surrounding wall 62 and a plurality of permanent magnet 63, and end cover 61 is connected with pivot 20, and surrounding wall 62 encircles around end cover 61, and a plurality of permanent magnet 63 encircle surrounding wall 62 interval setting, and permanent magnet 63 is relative with stator tooth 512. The relative position of the permanent magnet 63 and the stator teeth 512 does not mean that the permanent magnet 63 and the stator teeth 512 are fixed, and means that the permanent magnet 63 and the stator teeth 512 are equal in height or the projection of the stator teeth 512 on the surrounding wall 62 is at least partially overlapped with the permanent magnet 63. Of course, the proposed motor 100 is not limited to the outer rotor 60 motor 100, but may also be the inner rotor 60 motor 100, which is determined according to the actual design requirement. It should also be noted that in the present embodiment, the permanent magnet 63 and the stator teeth 512 are opposite in the radial direction, and the permanent magnet 63 works through the interaction with the radial magnetic field generated by the stator teeth 512 and the winding 52, i.e. the proposed electric machine 100 is a radial electric machine 100. Of course, in other embodiments, the proposed electrical machine 100 may also be an axial electrical machine 100, i.e. the permanent magnets 63 and the stator teeth 512 are arranged axially opposite, the permanent magnets 63 working by interaction with the axial magnetic field generated by the stator teeth 512 and the windings 52.
In some embodiments, the proposed motor 100 further includes a first bearing 70 and a second bearing 80, the first bearing 70 is disposed through one end of the mounting hole 11, the second bearing 80 is disposed through the other end of the mounting hole, and the rotating shaft 20 is disposed through the first bearing 70 and the second bearing 80. Alternatively, both the first bearing 70 and the second bearing 80 are ball bearings. In other embodiments, the first bearing 70 is a ball bearing, and the second bearing 80 is a spherical oil-retaining bearing, and the spherical oil-retaining bearing can automatically adjust the concentricity with the ball bearing during the rotation of the rotating shaft 20, so as to realize automatic centering, so that the motor 100 operates stably.
As shown in fig. 5, in some other embodiments, the hall magnetic ring assembly 30 ' includes a hall magnetic ring 31 ' and a magnetic conductive cap 32 ', and the magnetic conductive cap 32 ' is annularly disposed on the outer periphery of the hall magnetic ring 31 '. Optionally, the magnetically permeable cap 32 'is a magnetically permeable cap 32' made of one of iron, cobalt, nickel, and stainless steel. In this design, too much magnetic field lines of the hall magnetic ring 31' may be effectively weakened to interfere with other electronic devices, and the weakening range of the magnetic field in the direction of the hall sensor 41 may be reduced.
As shown in fig. 6 and 7, the embodiment of the present invention further proposes a cloud platform 200, the proposed cloud platform 200 comprises a first axis arm 201 and the motor 100, wherein the motor base 10 is connected to the first axis arm 201.
Alternatively, the number of the motors 100 is one, and the motor 100 may be used as one of the pitch motor 100 or the roll motor 100 or the yaw motor 100. Of course, in some other embodiments, the number of the motors 100 may be two or three, when the number of the motors 100 is two, the two motors 100 are any two of the pitching motor 100, the rolling motor 100 and the yawing motor 100, respectively, and when the number of the motors 100 is three, the three motors 100 are the pitching motor 100, the rolling motor 100 and the yawing motor 100, respectively.
As shown in fig. 6, an embodiment of the present invention further provides a drone 300, where the drone 300 includes a drone main body 301, a shooting device 302, and the cradle head 200, the cradle head 200 is installed on the drone main body 301, and the shooting device 302 is installed on the cradle head 200. The pan/tilt head 200 is used for carrying the photographing device 302 and adjusting the posture of the photographing device 302.
As shown in fig. 7, an embodiment of the present invention further provides a handheld shooting device 400, where the handheld shooting device 400 includes a handheld portion 401, a shooting device 402, and the above-mentioned pan/tilt head 200, the pan/tilt head 200 is installed on the handheld portion 401, and the shooting device 402 is installed on the pan/tilt head 200. The pan/tilt head 200 is used for carrying the photographing device 402 and adjusting the posture of the photographing device 402.
While the utility model has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. An electric machine, comprising:
the motor base is provided with a mounting hole;
the rotating shaft is rotatably arranged in the mounting hole in a penetrating way;
the Hall magnetic ring assembly is sleeved outside the rotating shaft;
the Hall sensor is arranged on the motor base, corresponds to the Hall magnetic ring assembly and is used for detecting the position of the rotating shaft relative to the motor base;
the Hall magnetic ring assembly comprises a Hall magnetic ring and a magnetic conduction ring, and the Hall magnetic ring and the magnetic conduction ring are stacked in the axial direction of the rotating shaft.
2. The motor as claimed in claim 1, wherein the hall sensor is disposed outside the hall magnetic ring assembly, and the hall sensor is located on a plane where an interface of the hall magnetic ring and the magnetic conductive ring is located.
3. The motor as claimed in claim 1, wherein the hall bead has a thickness of M1The thickness of the magnetic conductive ring is M2Wherein M is2/M1≥0.5。
4. The electric machine of claim 3, wherein M is2/M1＝0.5-1.5。
5. The motor as claimed in claim 1, wherein the area enclosed by the outer edge and the inner edge of the hall magnetic ring is S1The area formed by the enclosing of the outer edge and the inner edge of the magnetic conductive ring is S2Wherein S is2/S1＝0.5-1.5。
6. The motor as claimed in claim 1, wherein the hall magnet ring and the magnetic conductive ring are both circular rings, an outer diameter of the hall magnet ring is identical to an outer diameter of the magnetic conductive ring, and an inner diameter of the hall magnet ring is identical to an inner diameter of the magnetic conductive ring.
7. The electric machine of claim 1, wherein the flux ring is made of one of iron, cobalt, nickel, and stainless steel.
8. The electric machine of claim 1, further comprising:
the stator is arranged on the motor base and comprises an iron core and a plurality of windings, the iron core comprises an annular yoke and a plurality of stator teeth, the annular yoke is arranged on the motor base, the plurality of stator teeth are arranged around the annular yoke at intervals, and each stator tooth is wound with one winding;
the rotor, install in the pivot, the rotor includes end cover, leg and a plurality of permanent magnet, the end cover with the pivot is connected, the leg surround in around the end cover, a plurality of permanent magnet surround the leg interval sets up, the permanent magnet with the stator tooth is relative.
9. A head, comprising a first shaft arm and a motor according to any one of claims 1 to 8, wherein the motor mount is connected to the first shaft arm.
10. An unmanned aerial vehicle, comprising an unmanned aerial vehicle body, a camera device and the cradle head of claim 9, the cradle head being mounted to the unmanned aerial vehicle body, the camera device being mounted to the cradle head.
11. A handheld shooting device, characterized by comprising a handheld portion, a shooting device and the cradle head of claim 9, wherein the cradle head is mounted on the handheld portion, and the shooting device is mounted on the cradle head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122531749.7U CN216751443U (en) | 2021-10-20 | 2021-10-20 | Motor, cloud platform, unmanned aerial vehicle and handheld shooting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122531749.7U CN216751443U (en) | 2021-10-20 | 2021-10-20 | Motor, cloud platform, unmanned aerial vehicle and handheld shooting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216751443U true CN216751443U (en) | 2022-06-14 |
Family
ID=81923482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122531749.7U Expired - Fee Related CN216751443U (en) | 2021-10-20 | 2021-10-20 | Motor, cloud platform, unmanned aerial vehicle and handheld shooting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216751443U (en) |
-
2021
- 2021-10-20 CN CN202122531749.7U patent/CN216751443U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220614 |
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| CF01 | Termination of patent right due to non-payment of annual fee |