CN212695788U

CN212695788U - Motor and cloud platform

Info

Publication number: CN212695788U
Application number: CN202021468248.8U
Authority: CN
Inventors: 不公告发明人
Original assignee: Suzhou Zhendi Intelligent Technology Co Ltd
Current assignee: Suzhou Zhendi Intelligent Technology Co Ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-03-12
Anticipated expiration: 2030-07-22

Abstract

The application relates to a motor and a holder, and belongs to the technical field of motors. The motor comprises a rotor part and a stator part, wherein the rotor part comprises a motor shaft, a rotor shell and a magnetic ring; the stator part comprises a motor holder, an iron core winding and a PCB, the motor holder is installed on a motor shaft through a bearing, the iron core winding and the PCB are fixed on the motor holder, the motor holder is located between a magnetic ring and the PCB along the axial direction of the motor shaft, the PCB comprises a first surface facing the motor holder and a second surface deviating from the motor holder, the first surface is attached to the motor holder, a magnetic field sensor is arranged on the first surface, a through hole is formed in the motor holder, and the magnetic field sensor penetrates through the through hole. The motor has compact structure and small volume of the whole machine.

Description

Motor and cloud platform

Technical Field

The application relates to the technical field of motors, in particular to a motor and a holder.

Background

With the increasing living standard of people, the demand of people for photography is increasing day by day, and the stable and smooth video effect and the clear image quality become the main way for improving the photography capability of people.

The main photographic products in the existing market include handheld cloud platform (from taking camera lens and carry cell-phone) and unmanned aerial vehicle carry cloud platform, along with the progressive maturity of the progress of science and technology and handheld cloud platform, unmanned aerial vehicle technique, handheld cloud platform and unmanned aerial vehicle all develop to small-size, lightweight direction, how further reduce the volume that the cloud platform motor becomes one of the small-size, lightweight main bottleneck of cloud platform under the prerequisite of guaranteeing the cloud platform performance.

SUMMERY OF THE UTILITY MODEL

The purpose of this application is to provide a compact structure's motor.

Another object of the present application is to provide a head.

The application is realized by the following technical scheme:

the application provides a motor, includes:

the rotor part comprises a motor shaft, a rotor shell and a magnetic ring, the rotor shell is fixed on the motor shaft, and the magnetic ring is fixed on the rotor shell;

the stator part, the stator part includes the motor holder, iron core winding and PCB board, the motor holder passes through the bearing and installs on the motor shaft, iron core winding and PCB board are fixed in the motor holder, the motor holder is located between magnetic ring and the PCB board along the axial of motor shaft, the PCB board includes towards the first face of motor holder and the second face that deviates from the motor holder, first face and the laminating of motor holder, be provided with magnetic field sensor on the first face, the through-hole has been seted up on the motor holder, magnetic field sensor passes the through-hole.

According to the motor, the through hole is formed in the motor retainer to avoid the magnetic field sensor, the motor retainer can be arranged between the magnetic ring and the PCB, the space between the magnetic ring and the PCB is effectively utilized, on the basis of ensuring the effective distance between the magnetic field sensor and the magnetic ring, the axial size of the motor is effectively reduced through optimizing the stacking sequence of the motor retainer and the PCB, the structure is more compact, and the size of the whole motor is reduced.

In an embodiment of the application, only the magnetic field sensor is provided on the first side.

In the above embodiment, the first surface is only provided with the magnetic field sensor, and the magnetic field sensor is arranged in the through hole of the motor retainer in a penetrating manner, so that the PCB and the motor retainer can be attached, the structure is compact, the axial size is reduced, and the size of the whole machine is reduced.

In an embodiment of the application, the number of the magnetic field sensors is two, the two magnetic field sensors are respectively a first hall sensor and a second hall sensor, and the first hall sensor and the second hall sensor are arranged at intervals along the circumferential direction of the motor shaft.

In the above embodiment, two hall sensors are used, and the motor rotation angle can be accurately controlled.

In one embodiment of the present application, pads and terminals are provided on the second side.

In the above embodiment, the second surface is provided with the pads and the terminals, so that the installation space of the PCB is reasonably distributed, and connection with other components is facilitated.

In an embodiment of the application, the motor holder includes a PCB board mounting portion and an iron core winding mounting portion, the iron core winding mounting portion is a cylindrical structure, the PCB board mounting portion is formed on an outer peripheral surface of the iron core winding mounting portion, the through hole is opened on the PCB board mounting portion, the iron core winding is mounted on the outer peripheral surface of the iron core winding mounting portion, the iron core winding is located between the magnetic ring and the iron core winding mounting portion along a radial direction, and the PCB board is located on one side of the PCB board mounting portion away from the iron core winding.

In the above embodiment, the through hole is formed in the PCB mounting portion, and the axial space occupation is reduced by attaching the PCB mounting portion to the first surface of the PCB; the installation and positioning of the iron core winding are realized through the iron core winding installation part.

In an embodiment of the application, the PCB board is provided with a middle through hole, and the PCB board is sleeved on the iron core winding installation part through the middle through hole.

In the above embodiment, based on the middle through hole of the PCB, the PCB is sleeved on the iron core winding installation part through the middle through hole, which is convenient for realizing the centering and positioning of the PCB.

In an embodiment of the present application, the PCB board mounting portion is provided in the annular groove, and the PCB board is embedded in the annular groove.

In the above embodiment, the annular groove is arranged, so that the PCB can be embedded conveniently, and the PCB is limited.

In an embodiment of the application, the motor holder further comprises a motor mounting portion, a circumferential positioning hole corresponding to the motor mounting portion is formed in the PCB, and the circumferential positioning hole is used for being matched with the motor mounting portion to limit circumferential rotation of the PCB.

In the above embodiment, the circumferential positioning hole is matched with the motor mounting part to limit the circumferential rotation of the PCB; the motor installation part can also realize the installation and the positioning of the motor and other components.

In an embodiment of this application, the motor holder is installed on the motor shaft through first bearing and second bearing, first bearing is located between rotor shell and the second bearing along the axial of motor shaft, be formed with spacing boss on the inner peripheral surface of iron core winding installation department, spacing boss is located between first bearing and the second bearing, one side and the rotor shell butt of first bearing, the opposite side and the spacing boss butt of first bearing, one side and the spacing boss butt of second bearing, the opposite side of second bearing is through installing the retaining ring location on the motor shaft.

In the above embodiment, the rotation of the motor holder relative to the motor shaft is realized by the first bearing and the second bearing, and the axial positioning of each component of the motor is realized by the rotor shell, the first bearing, the limiting boss, the second bearing and the bearing retainer ring.

The application also provides a cloud platform, including cloud platform body and foretell motor, the motor is installed in cloud platform body.

This cloud platform adopts foretell motor, has improved the space utilization of cloud platform, has promoted the diversified development of cloud platform spatial arrangement scheme.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is an exploded view of a motor according to one embodiment of the present application;

FIG. 2 is a cross-sectional view of a motor shown in one embodiment of the present application;

fig. 3 is a schematic structural diagram of a first side of a PCB board according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a second side of a PCB board according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a core winding mounting portion of a motor cage according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a PCB board mounting portion of a motor holder according to an embodiment of the present application.

Icon: 100-a motor; 10-motor shaft; 11-a limit table; 20-a rotor shell; 21-a substrate; 211-mounting through holes; 22-a cover body; 30-a magnetic ring; 40-a motor cage; 41-through holes; 42-PCB board mounting part; 421-an annular groove; 43-core winding mount; 431-mounting bosses; 432-axial positioning ribs; 433-a limit boss; 44-a motor mount; 441-a threaded hole; 45-angle limiting block; 50-iron core windings; 60-a PCB board; 61-a first side; 611-a magnetic field sensor; 6111-a first hall sensor; 6112-a second hall sensor; 62-a second face; 621-pad; 622-terminal; 63-middle through hole; 64-circumferential positioning holes; 71-a first bearing; 72-a second bearing; 73-bearing ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, according to an aspect of the present application, there is provided a motor 100, the motor 100 including a rotor portion and a stator portion.

The rotor part comprises a motor shaft 10, a rotor shell 20 and a magnetic ring 30, the rotor shell 20 is fixed on the motor shaft 10, the magnetic ring 30 is fixed on the rotor shell 20, and the motor shaft 10 drives the rotor shell 20 and the magnetic ring 30 to rotate.

The stator part comprises a motor retainer 40, an iron core winding 50 and a PCB 60, wherein the motor retainer 40 is arranged on the motor shaft 10 through a bearing, and the motor shaft 10 can rotate relative to the motor retainer 40; the core winding 50 and the PCB board 60 are fixed to the motor holder 40, and the magnetic ring 30 can rotate with respect to the core winding 50 when the magnetic ring 30 rotates following the motor shaft 10. The motor holder 40 is located between the magnetic ring 30 and the PCB 60 along the axial direction of the motor shaft 10, the PCB 60 includes a first surface 61 facing the motor holder 40 and a second surface 62 facing away from the motor holder 40, the first surface 61 is attached to the motor holder 40, the first surface 61 is provided with a magnetic field sensor 611, the motor holder 40 is provided with a through hole 41, and the magnetic field sensor 611 passes through the through hole 41, so that the magnetic field sensor 611 and the magnetic ring 30 are not shielded.

According to the motor 100, the magnetic field sensor 611 is accommodated through the through hole 41, on the basis of ensuring the effective distance between the magnetic field sensor 611 and the magnetic ring 30, the axial size of the motor 100 is effectively reduced through optimizing the stacking sequence of the motor holder 40 and the PCB 60, the structure of the whole motor is more compact, and the size of the motor 100 is further reduced.

Referring to fig. 3 and 4, the first surface 61 of the PCB 60 is only provided with the magnetic field sensor 611, and the second surface 62 is provided with the bonding pad 621 and the terminal 622; equivalently, the magnetic field sensor 611 and the pad 621 and the terminal 622 are located on both sides of the PCB board 60, respectively.

Only the magnetic field sensor 611 is arranged on the first surface 61 in contact with the motor holder 40, and the magnetic field sensor 611 penetrates through the through hole 41 of the motor holder 40, so that the PCB 60 and the motor holder 40 can be attached, the structure is compact, the axial size is reduced, and the volume of the whole machine is reduced. The second surface 62 is provided with pads 621 and terminals 622 to facilitate reasonable distribution of the mounting space of the PCB board 60 for connection with other components.

In an embodiment of the application, there are two magnetic field sensors 611, the two magnetic field sensors 611 are respectively a first hall sensor 6111 and a second hall sensor 6112, and the first hall sensor 6111 and the second hall sensor 6112 are arranged at intervals along the circumferential direction of the motor shaft 10, that is, two hall sensors are arranged in the circumferential direction of the motor shaft 10, and can detect a specific rotation position of the magnetic ring 30 and control the rotation angle of the motor 100. Correspondingly, two through holes 41 are also provided on the motor holder 40, and the two through holes 41 correspond to the first hall sensor 6111 and the second hall sensor 6112, respectively.

Optionally, the included angle between the first hall sensor 6111 and the second hall sensor 6112 in the circumferential direction of the motor shaft 10 is 90 ° or 120 °. In other embodiments of the present application, the included angle may also be an integer multiple of 90 ° or 120 °.

As shown in fig. 3, the PCB board 60 is provided with a central through hole 63 to facilitate the mounting and positioning of the PCB board 60 and the motor holder 40. The PCB board 60 is provided with a circumferential positioning hole 64 to cooperate with the motor holder 40 to limit the circumferential rotation of the PCB board 60.

Referring to fig. 5 and 6, the motor holder 40 includes a PCB board mounting portion 42 and a core winding mounting portion 43. The iron core winding installation part 43 is a cylindrical structure, the PCB installation part 42 is formed on the outer peripheral surface of the iron core winding installation part 43, and the through hole 41 is formed on the PCB installation part 42; the iron core winding 50 is installed on the outer peripheral surface of the iron core winding installation part 43, the iron core winding 50 is located between the magnetic ring 30 and the iron core winding installation part 43 along the radial direction, the PCB board 60 is located on one side of the PCB board installation part 42 far away from the iron core winding 50, and the PCB board 60 is sleeved on the iron core winding installation part 43 through the middle through hole 63.

The through hole 41 is formed in the PCB mounting portion 42, and the PCB mounting portion 42 is attached to the first surface 61 of the PCB 60, so that the axial space occupation is reduced; the mounting positioning of the core winding 50 is achieved by the core winding mounting portion 43. Based on the middle through hole 63 of the PCB 60, the PCB 60 is sleeved on the core winding mounting portion 43 through the middle through hole 63, so that the PCB 60 is centered and positioned conveniently.

Further, as shown in fig. 2 and 5, a mounting boss 431 is formed on the core winding mounting portion 43, and one end of the core winding 50 close to the PCB board mounting portion 42 abuts against the mounting boss 431, so as to mount and position the core winding 50.

Further, as shown in fig. 5, the core winding mounting portion 43 is provided with an axial positioning rib 432 for guiding and positioning the core winding 50 during mounting, so as to facilitate assembly of the core winding 50 and the motor holder 40.

Further, as shown in fig. 6, the PCB board mounting portion 42 defines an annular groove 421, and the PCB board 60 is embedded in the annular groove 421 (as shown in fig. 2). The setting of annular groove 421 is convenient for realize inlaying of PCB board 60 and establishes to carry on spacingly to PCB board 60, protect terminal 622 and pad 621 on the PCB board 60 simultaneously.

In an embodiment of the present application, as shown in fig. 6, the motor holder 40 further includes a plurality of motor mounting portions 44, the plurality of motor mounting portions 44 are arranged at intervals along a circumferential direction of the motor shaft 10, and threaded holes 441 extending along an axial direction of the motor shaft 10 are formed in the motor mounting portions 44, so as to facilitate mounting and positioning of the motor 100 and an external fixing member. The circumferential positioning hole 64 of the PCB 60 corresponds to the motor mounting portion 44, and the circumferential positioning hole 64 can be matched with the motor mounting portion 44 to limit the circumferential rotation of the PCB 60. Alternatively, the circumferential locating hole 64 is an arcuate notch that covers a portion of the motor mounting portion 44.

Further, as shown in fig. 2 and 5, an angle stopper 45 is formed on a surface of the PCB board mounting portion 42 of the motor holder 40 facing the core winding 50, and the angle stopper 45 is located at an edge of the PCB board 60 and extends in a circumferential direction of the motor shaft 10. The angle limiting block 45 is provided to facilitate the angle limitation when the motor 100 and other components are installed.

As shown in fig. 1 and 2, the rotor case 20 includes a base 21 and a cover 22 formed at one side of the base 21, the cover 22 is disposed toward the motor holder 40, and the magnet ring 30 is fixed to an inner wall of the cover 22. The middle part of base member 21 has seted up installation through-hole 211, and rotor shell 20 is located on motor shaft 10 through installation through-hole 211 cover, and the one end of being connected with rotor shell 20 of motor shaft 10 is formed with spacing platform 11, and rotor shell 20 and spacing platform 11 butt.

After the rotor shell 20 and the motor holder 40 are assembled with the motor shaft 10, the cover 22 covers the outside of the iron core winding 50, and the magnetic ring 30 corresponds to the iron core winding 50 in the radial direction of the motor shaft 10; meanwhile, the magnet ring 30 corresponds to the through hole 41 of the motor holder 40 in the axial direction.

In one embodiment of the present application, as shown in fig. 2, the motor holder 40 is mounted on the motor shaft 10 through a first bearing 71 and a second bearing 72, the first bearing 71 is located between the rotor housing 20 and the second bearing 72 along the axial direction of the motor shaft 10, a limit boss 433 (shown in fig. 2 and 5) is formed on the inner circumferential surface of the core winding mounting portion 43, the limit boss 433 is located between the first bearing 71 and the second bearing 72, one side of the first bearing 71 (inner ring) abuts against the rotor housing 20, the other side of the first bearing 71 (outer ring) abuts against the limit boss 433, one side of the second bearing 72 (outer ring) abuts against the limit boss 433, and the other side of the second bearing 72 is located through a bearing retainer 73 mounted on the motor shaft 10.

The rotation of the motor holder 40 relative to the motor shaft 10 is realized by the first bearing 71 and the second bearing 72, and the axial positioning of the components of the motor 100 is realized by the rotor housing 20, the first bearing 71, the limit boss 433, the second bearing 72 and the bearing retainer 73.

The motor 100 according to the embodiment of the application has the beneficial effects that:

the Hall sensor penetrates through a through hole 41 reserved in the motor retainer 40, so that the motor retainer 40 can be arranged between the magnetic ring 30 and the PCB, and the space between the magnetic ring 30 and the PCB is effectively utilized; through the optimization of the stacking sequence of the motor holder 40 and the PCB 60, the height of the Hall sensor and the motor holder 40 is structurally overlapped, the axial size of the motor shaft 10 is reduced, the space utilization rate of the motor 100 structure is optimized, the influence of the thickness tolerance of the PCB 60 on the assembly of the motor 100 is effectively eliminated, the distance between the Hall sensor and the end face of the magnetic ring 30 of the motor 100 is conveniently controlled within a smaller tolerance range, and the requirement on the assembly process is reduced. On the basis of ensuring the effective distance between the hall sensor and the magnetic ring 30 of the motor 100, the axial size of the motor 100 is effectively reduced, so that the volume of the motor 100 is further reduced.

According to another aspect of the present application, there is provided a head comprising a head body and the above-mentioned motor 100, the motor 100 being mounted on the head body.

This cloud platform adopts foretell motor 100, has improved the space utilization of cloud platform, has promoted the diversified development of cloud platform spatial arrangement scheme.

It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electric machine, comprising:

the motor comprises a stator part, wherein the stator part comprises a motor holder, an iron core winding and a PCB, the motor holder is arranged on a motor shaft through a bearing, the iron core winding and the PCB are fixed on the motor holder, the motor holder is positioned between a magnetic ring and the PCB along the axial direction of the motor shaft, the PCB comprises a first surface facing the motor holder and a second surface deviating from the motor holder, the first surface is attached to the motor holder, a magnetic field sensor is arranged on the first surface, a through hole is formed in the motor holder, and the magnetic field sensor penetrates through the through hole.

2. The machine of claim 1, wherein only said magnetic field sensors are disposed on said first face.

3. The motor of claim 2, wherein there are two magnetic field sensors, and the two magnetic field sensors are a first hall sensor and a second hall sensor, and the first hall sensor and the second hall sensor are arranged at intervals along the circumferential direction of the motor shaft.

4. The electric machine of claim 2, wherein the second face has pads and terminals disposed thereon.

5. The motor of claim 1, wherein the motor holder comprises a PCB mounting portion and a core winding mounting portion, the core winding mounting portion is a cylindrical structure, the PCB mounting portion is formed on an outer peripheral surface of the core winding mounting portion, the through hole is formed on the PCB mounting portion, the core winding is mounted on the outer peripheral surface of the core winding mounting portion, the core winding is radially located between the magnetic ring and the core winding mounting portion, and the PCB is located on a side of the PCB mounting portion away from the core winding.

6. The electric machine of claim 5, wherein the PCB is provided with a middle through hole, and the PCB is sleeved on the iron core winding mounting part through the middle through hole.

7. The electric machine of claim 6, wherein the PCB mounting portion opens into an annular groove in which the PCB is embedded.

8. The motor of claim 5, wherein the motor holder further comprises a motor mounting portion, and the PCB is provided with a circumferential positioning hole corresponding to the motor mounting portion, and the circumferential positioning hole is used for being matched with the motor mounting portion to limit circumferential rotation of the PCB.

9. The motor of claim 5, wherein the motor holder is mounted on the motor shaft via a first bearing and a second bearing, the first bearing is located between the rotor case and the second bearing along the axial direction of the motor shaft, a limit boss is formed on an inner peripheral surface of the core winding mounting portion, the limit boss is located between the first bearing and the second bearing, one side of the first bearing abuts against the rotor case, the other side of the first bearing abuts against the limit boss, one side of the second bearing abuts against the limit boss, and the other side of the second bearing is located by a bearing retainer ring mounted on the motor shaft.

10. A head, comprising a head body and a motor as claimed in any one of claims 1 to 9, said motor being mounted to said head body.