CN207082976U - A kind of brushless electric machine and with the head of the brushless electric machine, aerial photography device - Google Patents
A kind of brushless electric machine and with the head of the brushless electric machine, aerial photography device Download PDFInfo
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- CN207082976U CN207082976U CN201720866965.8U CN201720866965U CN207082976U CN 207082976 U CN207082976 U CN 207082976U CN 201720866965 U CN201720866965 U CN 201720866965U CN 207082976 U CN207082976 U CN 207082976U
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- circuit board
- brushless electric
- electric machine
- board assemblies
- chip
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Abstract
The utility model provides a kind of brushless electric machine, including motor body and circuit board assemblies installation shell, the circuit board assemblies installation shell is arranged on the end of the motor body, formed with the first cavity between the circuit board assemblies and the motor body, it is provided with first cavity and is used for the circuit board assemblies for controlling the brushless electric machine work and the angle sensor device assembly for gathering the brushless electric motor rotor anglec of rotation, the circuit board assemblies electrically connect with the angle sensor device assembly, by using said structure, so that brushless electric machine adjustment is simple, using relatively easy, the utility model also provides a kind of head and aerial photography device with above-mentioned brushless electric machine.
Description
Technical field
It the utility model is related to machine field, more particularly to a kind of brushless electric machine and head with the brushless electric machine, boat
Clap device.
Background technology
In recent years, all kinds of moving bases imaging heads be widely used in take photo by plane, the field such as unmanned vehicle, robot, increasingly by
The concern of people.Taken photo by plane in particular with unmanned plane, have it is quick, flexibly, it is clear, obtain people's region of interest exactly
The photo in domain, the important means of video information.But for the moving base carrier using unmanned plane as representative, in moving process not
The influence such as change, vibration of attitude of carrier be present with can avoiding, cause video seriously to rock, photographic fog it is unclear, stable head
Birth solve this problem.
Stable head is made up of the motor on multivariant mechanical mechanism, each axle and control circuit.It is common
Steering wheel, the DC servo motor with reducing gear, stepper motor and brushless electric machine of horizontal stage electric machine including model plane etc..
Compared with other types of motor, there is integral rigidity height, small volume, weight using the stable head of brushless electric machine
Gently, outstanding advantages of stablizing effect is good.But in the existing brushless head driving control system of in the market, motor-drive circuit
System and brushless electric machine are discrete, cause electric system volume larger, and do not possess higher installation when system is installed
Adaptability.
Utility model content
In view of this, the utility model embodiment provides a kind of brushless electric machine and the head with the brushless electric machine, boat
Clap device
In a first aspect, the utility model provides a kind of brushless electric machine, including motor body and circuit board assemblies installation shell,
The circuit board assemblies installation shell is arranged on the end of the motor body, the circuit board assemblies and the motor body
Between the circuit board assemblies and use for being used for controlling the brushless electric machine work are provided with formed with the first cavity, in first cavity
In the angle sensor device assembly of the collection brushless electric motor rotor anglec of rotation, the circuit board assemblies and the angle sensor device assembly
Electrical connection.
Alternatively, the angle sensor device assembly includes magnetic coder chip and permanent magnet, the brushless electric motor rotor
Axial centre is provided with rotating shaft, and the permanent magnet is set to be encoded with the rotating shaft towards the end of the circuit board assemblies, the magnetic
Device chip is arranged on the circuit board assemblies and the corresponding permanent magnet, the magnetic coder chip and the circuit board assemblies
Electrical connection.
Alternatively, the circuit board assemblies include being used to control according to the brushless electric motor rotor anglec of rotation and electric current number
According to brushless electric machine is controlled digitial controller, three-phase bridge drive component, for detecting the adjacent two alternate electricity of brushless electric machine
The current sense device assembly of flow data, the digitial controller, the three-phase bridge drive component and the current sense device assembly
Electrical connection.
Alternatively, the circuit board assemblies include digital processing circuit plate and drive circuit board, the digital processing circuit
Plate and the drive circuit board are overlayed in first cavity.
Alternatively, the rotating shaft penetrates provided with vestibule in the axial direction.
Alternatively, the angle sensor device assembly includes Circular gratings and optical readings chip, has among the Circular gratings
Mounting hole, the Circular gratings are set in the end of the rotating shaft by the mounting hole, and the optical readings chip is arranged on institute
State on circuit board assemblies and the corresponding Circular gratings, the optical readings chip electrically connect with the circuit board assemblies.
Alternatively, the angle sensor device assembly includes circular magnetic grid and Hall reading chip, among the circular magnetic grid
With circular hole, the circular magnetic grid is set in the end of the rotating shaft by the circular hole, and the Hall reading chip is arranged on
On the circuit board assemblies and the corresponding circular magnetic grid, the Hall reading chip electrically connect with the circuit board assemblies.
Alternatively, the wire harness for transmitting telecommunication number is provided with the vestibule.
Second aspect, the utility model provide a kind of head, and the head has above-mentioned brushless electric machine.
The third aspect, the utility model provide a kind of aerial photography device, and the aerial photography device has above-mentioned head.
As can be seen from the above technical solutions, the utility model embodiment has advantages below：
The utility model provides a kind of brushless electric machine, head and aerial photography device, including motor body and circuit board assemblies installation
Shell, the circuit board assemblies installation shell are arranged on the end of the motor body, the circuit board assemblies and the electricity
Formed with the first cavity between machine body, first cavity is interior to be provided with the circuit board group for being used for controlling the brushless electric machine work
Part and the angle sensor device assembly for gathering the brushless electric motor rotor anglec of rotation, the circuit board assemblies and the angle sensor
Device assembly electrically connects, by using said structure so that brushless electric machine adjustment is simple, uses relatively easy, relative inexpensiveness.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used does simple introduction in description of the prior art.It should be evident that drawings in the following description are only these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is that a kind of structural representation of brushless electric machine is provided in the utility model embodiment；
Fig. 2 is the structural representation that another brushless electric machine is provided in the utility model embodiment；
Fig. 3 is the structural representation that another brushless electric machine is provided in the utility model embodiment；
Fig. 4 is the structural representation that another brushless electric machine is provided in the utility model embodiment.
Reference：First screw 1, circuit board assemblies installation shell 2, the second screw 3, circuit board assemblies 4 are digital control
Circuit board 41, drive circuit board 42, angle sensor device assembly 5, magnetic coder chip 51, permanent magnet 52, Circular gratings 53, light source
54, optical readings chip 55, motor body 6, rotating shaft 7, vestibule 8, wire harness 9.
Embodiment
In order that those skilled in the art more fully understand the utility model, it is real below in conjunction with the utility model
The accompanying drawing in example is applied, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that be described
Embodiment is only the embodiment of the utility model part, rather than whole embodiments.Based on the reality in the utility model
Example is applied, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all should
When the scope for belonging to the utility model protection.
Term " first ", " second ", " the 3rd " in specification and claims of the present utility model and above-mentioned accompanying drawing,
(if present)s such as " the 4 " is for distinguishing similar object, without for describing specific order or precedence.Should
The data that the understanding so uses can exchange in the appropriate case, so that the embodiments described herein can be with except herein
Order beyond diagram or the content of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment not
Be necessarily limited to those steps or the unit clearly listed, but may include not list clearly or for these processes, side
The intrinsic other steps of method, product or equipment or unit.
With reference to shown in Fig. 1, the utility model provides a kind of brushless electric machine, including motor body 6 and circuit board assemblies installation
Shell 2, the circuit board assemblies installation shell 2 are arranged on the end of the motor body 2, incite somebody to action both by the first screw 1
It is installed together, formed with the first cavity between the circuit board assemblies 4 and the motor body 6, is set in first cavity
Have for controlling the circuit board assemblies of the brushless electric machine work and 4 angles for being used to gather the brushless electric motor rotor anglec of rotation to pass
Sensor component 5, circuit board assemblies 4 are arranged on motor body 6 by the second screw 3, the circuit board assemblies 4 and the angle
Sensor cluster 5 electrically connects, and the circuit board assemblies 4 can obtain brushless electric motor rotor absolute angular position and brushless electric machine phase
The current data of adjacent two-phase, and driving and control to motor are realized, the circuit board assemblies 4 also there is telecommunication circuit can connect
The outside instruction sent is received, and the information such as absolute angular position, the electric current of brushless electric motor rotor, angular transducer group are sent to outside
The absolute angular position that part measurement brushless electric machine rotates, and the digitial controller for feeding back to described circuit board assemblies 4 carries out closed loop
Control, by using said structure so that brushless electric machine adjustment is simple, using relatively easy.
Fineness for brushless electric motor rotor rotating shaft in rotating shaft 7, it is necessary to carry out whether threading cable, there is provided Duo Zhongwu
Brush motor rotor shaft structure, then respective angles sensor cluster 5 also have difference, for not in rotating shaft 7 arrange cable or
When arranging less cable, solid spindle can used or there is the rotating shaft 7 of thinner through hole, for needing the cloth in rotating shaft
Putting the shaft diameter used during more cable also accordingly increases, and the through hole internal diameter opened up in rotating shaft similarly increases.
With reference to shown in Fig. 2 and Fig. 3, when for the arrangement cable not in rotating shaft 7 or arranging less cable, angle sensor
Device assembly 5 includes magnetic coder chip 51 and permanent magnet 52, and the axial centre of brushless electric motor rotor is provided with rotating shaft 7, permanent magnet 52
Set and be arranged on the circuit board group towards the end of the circuit board assemblies 4, the magnetic coder chip 51 with the rotating shaft 7
On part 4 and the corresponding permanent magnet 52, the magnetic coder chip 51 electrically connect with the circuit board assemblies 4, the rotational band of rotating shaft 7
Dynamic permanent magnet 52 rotates, and magnetic flux changes, and magnetic coder chip 51 gathers corresponding signal data and is transferred to circuit board group
Part 4, circuit board assemblies 4 carry out calculating the anglec of rotation or angular speed that can obtain brushless electric motor rotor.
Alternatively, the circuit board assemblies 4 include being used for according to the brushless electric motor rotor anglec of rotation and current data
The digitial controller that is controlled to brushless electric machine, three-phase bridge drive component, for detecting adjacent two three-phase current of brushless electric machine
The current sense device assembly of data, the digitial controller, the three-phase bridge drive component and current sense device assembly electricity
Connection, digitial controller on circuit board assemblies 4 are capable of the data of reading angular sensor cluster and current sense device assembly, obtained
The current data of brushless electric motor rotor absolute angular position and the adjacent two-phase of brushless electric machine is obtained, by three-phase bridge chip assembly to nothing
Brush motor carries out Field orientable control.
It should be noted that current sense device assembly is used to gather the electric current by brushless electric machine, feed back to digital control
Device carries out closed-loop current control.When not needing closed-loop current control, this current sense device assembly can also be omitted.
Alternatively, the circuit board assemblies 4 include digital processing circuit plate 41 and drive circuit board 42, the digital processing
Circuit board 41 and the drive circuit board 42 are overlayed in first cavity, are so segmented into two pieces of circuit boards and are realized.
With reference to shown in Fig. 4, when more cable is arranged in rotating shaft for needs, rotating shaft penetrates provided with vestibule in the axial direction
8, it is preferable that the cylinder for being shaped as rule of vestibule 8, be easy to cable to pass through, can enter as needed for the internal diameter of vestibule 8
Row setting, is not limited herein.
When vestibule structure is used in rotating shaft 7, rotor can be obtained by the way of photoelectric coding or magnetic grid coding
Angle position, specifically, during using photoelectric coding, angle sensor device assembly 5 includes Circular gratings 53 and optical readings chip 55, light
The iC-PN family chips that iC-haus companies can be selected in reading chip 55 are learned, Circular gratings 53 are provided with notch, Circular gratings 53 1
Side sets optical readings chip 55, and opposite side sets light source 54, has mounting hole, the Circular gratings 53 among the Circular gratings 53
The end of the rotating shaft 7 is set in by the mounting hole, the optical readings chip 55 is arranged on the circuit board assemblies 4
And the corresponding Circular gratings 53, the optical readings chip 55 electrically connect with the circuit board assemblies 4, when rotor rotates, circle light
Grid 53 are rotated, and are encoded by the light on and off of light, and the anglec of rotation of rotor axial system is resolved by the rotation of Circular gratings 53, for
Structure those of ordinary skill in the art of photoelectric coding are not it is to be appreciated that repeat specifically.
When being encoded using magnetic grid, the angle sensor device assembly 5 includes circular magnetic grid and Hall reading chip, and Hall is read
Number chip can select the iC-MU family chips of iC-haus companies, and circular magnetic grid can also use magnetic drum to substitute, circular magnetic grid
Pitch be generally 1.28 millimeters or 1.5 millimeters, there is circular hole among the circular magnetic grid, the circular magnetic grid passes through the circle
Borehole jack is located at the end of the rotating shaft, and the Hall reading chip is arranged on the circuit board assemblies 4 and the corresponding circle
Magnetic grid, the Hall reading chip electrically connect with the circuit board assemblies 4, the part of circular magnetic grid and Hall reading chip composition
Referred to as magnetic-grid-type sensor, angle resolution is up to 360 °/218~360 °/220, there is higher detection accuracy.
Alternatively, the wire harness 9 for transmitting telecommunication number is provided with the vestibule, is easy to connect up, moreover, vestibule 8 is also
Gas transmission, transfusion or wiring conduit can be turned into, so as to make full use of rotating shaft 7, in the case of needs, to simplify the entirety of motor
Structure, and meet the particular/special requirement of some special occasions.
UART (universal asynchronous receiving-transmitting transmitter, the Universal of digitial controller are utilized on circuit board assemblies 4
Asynchronous Receiver Transmitter) interface realizes correspondence with foreign country, UART interface is a kind of asynchronous receiving-transmitting transmission
Device, the data that it will can be transmitted are changed between serial communication and data.To strengthen the anti-interference energy of signal of communication
Power, the UART interface on circuit board assemblies 4 are connected with RS-422 electrical level transferring chips Max3490 or Max3074, realize RS-
422 serial communications.
Also have power supply chip on circuit board assemblies 4, will input to the 8-24V Power converts of whole brushless electric machine for 5V and
3.3V power supplys, it is each chip and angular transducer assembly power supply, those of ordinary skill in the art it is to be appreciated that do not go to live in the household of one's in-laws on getting married herein
State.
Correspondingly, the utility model provides a kind of head, and the head has above-mentioned brushless electric machine, can reduce head
Volume, assembling is simple, and cost also can be reduced accordingly.Each kinematic axis of head is driven using this brushless electric machine, passes through master control system
The form of system serial communication realizes stability contorting.Because this motor carries drive circuit, master control system need not design motor drive
Dynamic circuit, it is only necessary to connected by serial ports, simplify the exploitation and design of head.
Correspondingly, the utility model provides a kind of aerial photography device, and the aerial photography device has above-mentioned head.Referred to herein as boat
Clap device and include but is not limited to model airplane, aircraft, helicopter, fire balloon, blimp, rocket, kite, parachute etc..Pass through
Larger payload can be loaded using above-mentioned head.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the unit
Division, only a kind of division of logic function, can there is other dividing mode, such as multiple units or component when actually realizing
Another system can be combined or be desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or
The mutual coupling discussed or direct-coupling or communication connection can be the indirect couplings by some interfaces, device or unit
Close or communicate to connect, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the utility model can be integrated in a processing unit,
Can be that unit is individually physically present, can also two or more units it is integrated in a unit.It is above-mentioned integrated
Unit can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
To be completed by the related hardware of programme-control, the program can be stored in a computer-readable recording medium, and storage is situated between
Matter can include：Read-only storage (ROM, Read Only Memory), random access memory (RAM, Random Access
Memory), disk or CD etc..
Carried out above to a kind of brushless electric machine provided by the utility model and with the head of the brushless electric machine, aerial photography device
It is discussed in detail, for those of ordinary skill in the art, according to the thought of the utility model embodiment, in embodiment
And there will be changes in application, in summary, this specification content should not be construed as to limitation of the present utility model.
Claims (10)
1. a kind of brushless electric machine, it is characterised in that including motor body and circuit board assemblies installation shell, the circuit board assemblies
Installation shell is arranged on the end of the motor body, formed with first between the circuit board assemblies and the motor body
Cavity, first cavity are interior provided with the circuit board assemblies for being used to control the brushless electric machine to work and for gathering brushless electric machine
The angle sensor device assembly of the rotor anglec of rotation, the circuit board assemblies electrically connect with the angle sensor device assembly.
2. brushless electric machine according to claim 1, it is characterised in that the angle sensor device assembly includes magnetic coder core
Piece and permanent magnet, the axial centre of the brushless electric motor rotor are provided with rotating shaft, the permanent magnet setting and the rotating shaft towards institute
The end of circuit board assemblies is stated, the magnetic coder chip is arranged on the circuit board assemblies and the corresponding permanent magnet, institute
Magnetic coder chip is stated to electrically connect with the circuit board assemblies.
3. brushless electric machine according to claim 1, it is characterised in that the circuit board assemblies include being used to control according to institute
State digitial controller, the three-phase bridge driving group that the brushless electric motor rotor anglec of rotation and current data are controlled to brushless electric machine
Part, the current sense device assembly for detecting the adjacent two alternate current data of brushless electric machine, the digitial controller, the three-phase
Bridge drive component and current sense device assembly electrical connection.
4. brushless electric machine according to claim 1, it is characterised in that the circuit board assemblies include digital processing circuit plate
And drive circuit board, the digital processing circuit plate and the drive circuit board are overlayed in first cavity.
5. brushless electric machine according to claim 2, it is characterised in that the rotating shaft penetrates provided with vestibule in the axial direction.
6. the brushless electric machine according to claim 2 or 5, it is characterised in that the angle sensor device assembly includes Circular gratings
And optical readings chip, the Circular gratings centre have mounting hole, the Circular gratings are set in described turn by the mounting hole
The end of axle, the optical readings chip is arranged on the circuit board assemblies and the corresponding Circular gratings, the optical readings
Chip electrically connects with the circuit board assemblies.
7. the brushless electric machine according to claim 2 or 5, it is characterised in that the angle sensor device assembly includes circular magnetic
Grid and Hall reading chip, the circular magnetic grid centre have circular hole, and the circular magnetic grid is set in described by the circular hole
The end of rotating shaft, the Hall reading chip is arranged on the circuit board assemblies and the corresponding circular magnetic grid, the Hall
Reading chip electrically connects with the circuit board assemblies.
8. brushless electric machine according to claim 5, it is characterised in that the line for transmitting telecommunication number is provided with the vestibule
Beam.
9. a kind of head, it is characterised in that the head has the brushless electric machine as any one of claim 1 to 8.
10. a kind of aerial photography device, it is characterised in that the aerial photography device has head as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720866965.8U CN207082976U (en) | 2017-07-17 | 2017-07-17 | A kind of brushless electric machine and with the head of the brushless electric machine, aerial photography device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720866965.8U CN207082976U (en) | 2017-07-17 | 2017-07-17 | A kind of brushless electric machine and with the head of the brushless electric machine, aerial photography device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207082976U true CN207082976U (en) | 2018-03-09 |
Family
ID=61423525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720866965.8U Active CN207082976U (en) | 2017-07-17 | 2017-07-17 | A kind of brushless electric machine and with the head of the brushless electric machine, aerial photography device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207082976U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317438A (en) * | 2017-07-17 | 2017-11-03 | 中国科学院长春光学精密机械与物理研究所 | A kind of brushless electric machine and head with the brushless electric machine, aerial photography device |
| CN108873946A (en) * | 2018-06-04 | 2018-11-23 | 浙江大华技术股份有限公司 | A kind of positioning mechanism of holder, localization method, positioning system and video camera |
| CN111277094A (en) * | 2020-03-10 | 2020-06-12 | 奇瑞汽车股份有限公司 | Composite disc type driving motor |
-
2017
- 2017-07-17 CN CN201720866965.8U patent/CN207082976U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317438A (en) * | 2017-07-17 | 2017-11-03 | 中国科学院长春光学精密机械与物理研究所 | A kind of brushless electric machine and head with the brushless electric machine, aerial photography device |
| CN108873946A (en) * | 2018-06-04 | 2018-11-23 | 浙江大华技术股份有限公司 | A kind of positioning mechanism of holder, localization method, positioning system and video camera |
| CN111277094A (en) * | 2020-03-10 | 2020-06-12 | 奇瑞汽车股份有限公司 | Composite disc type driving motor |
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