CN109742905A - A kind of electric machine assembly and steering engine - Google Patents
A kind of electric machine assembly and steering engine Download PDFInfo
- Publication number
- CN109742905A CN109742905A CN201811561503.0A CN201811561503A CN109742905A CN 109742905 A CN109742905 A CN 109742905A CN 201811561503 A CN201811561503 A CN 201811561503A CN 109742905 A CN109742905 A CN 109742905A
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- magnet
- electric machine
- circuit board
- drive circuit
- rotation axis
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Abstract
The present invention is suitable for technical field of motors, provide a kind of electric machine assembly and steering engine, wherein, electric machine assembly includes drive circuit board, the magnetic coding chip being integrated on drive circuit board, and it is connected to the motor body on drive circuit board, motor body is provided with magnet close to the end of one end of drive circuit board, and magnet is installed on the end of motor rotation axis, and magnet is arranged with magnetic coding chip interval and center is aligned.The present invention is by the way that magnetic coding chip to be integrated on drive circuit board, and magnet is set to motor body close to the end of one end of drive circuit board, the axial space of motor body can be maximally utilised, promote the torque density and power density of motor, so that the improved efficiency of servo-system, temperature rise is reduced；In addition, reducing around magnetic coding chip has magnetic source or current source to the interference of magnetic coding chip, improves the precision of servo motor position, enhances the reliability of servo-system after magnetic coding chip and drive circuit board are integrated.
Description
Technical field
The present invention relates to technical field of motors, in particular to a kind of electric machine assembly and steering engine.
Background technique
Permanent magnet synchronous motor usually selects photoelectric encoder as the detecting element of rotor-position, and it is big that there are volumes, right
Concentricity, dimensional tolerance of installation etc. require height, and impact resistance is poor, require the disadvantages of high to installation environment.Since photoelectricity is compiled
Code device occupies the axial space of motor, so that the useful space inside motor shortens, reduces the torque density and function of motor
Rate density.
And use permanent magnet synchronous motor and encoder and motor driven of the magnetic coder as rotor-position detecting element
Device separation, the signal wire of encoder are connected in driver, and encoder is mounted on motor tail end and realizes position detecting function.Although
The volume of magnetic coder can be less than photoelectric encoder, and still, magnetic coder still has the waste of axial space, to a certain extent
Reduce the torque density and power density of motor.In addition, intrinsic sensitive to neighbouring permeability magnetic material, D.C. magnetic field of magnetic coder
The disadvantage is that unavoidable.
Summary of the invention
The purpose of the present invention is to provide a kind of electric machine assemblies, it is intended to solve the torque density of current permanent magnet synchronous motor
The technical problem low with power density.
The invention is realized in this way a kind of electric machine assembly, including drive circuit board, it is integrated on the drive circuit board
Magnetic coding chip, and the motor body being connected on the drive circuit board, the motor body is close to the driving electricity
The end of one end of road plate is provided with magnet, and the magnet is installed on the end of motor rotation axis, and the magnet and the magnetic are compiled
Code chip chamber is every setting and center alignment.
In one embodiment, the decoding circuit of the magnetic coding chip is also integrated on the drive circuit board.
In one embodiment, the motor body includes rotor, and the rotor includes rotation axis, is sheathed on the rotation
Rotor core outside axis, the rotor permanent magnet being sheathed on outside the rotor core, and it is sheathed on the axis at the rotation axis both ends
It holds, the magnet is sheathed on the rotation axis close to the end of one end of the magnetic coding chip and coaxially sets with the rotation axis
It sets.
In one embodiment, the electric machine assembly further includes non-magnetic gasket, and the gasket is connect with the magnet,
The gasket is between the magnet and the bearing.
In one embodiment, the gasket and the rotation axis are interference fitted, the magnet and the rotation shaft clearance
Cooperate, filler is filled in the gap between the magnet and the rotation axis.
In one embodiment, the motor body further includes being sheathed on the external bobbin winder bracket of the rotor permanent magnet, winding
In the armature winding of the bobbin winder bracket, the stator core being sheathed on outside the bobbin winder bracket, the machine that is sheathed on outside the stator core
Shell, and be covered on the casing and set on the rear end cap of one end of the drive circuit board, the outer surface of the rear end cap
It is equipped with multiple for connecting the connection positioning column of the drive circuit board.
In one embodiment, multiple connection positioning columns are evenly arranged in the surrounding of the rotation axis.
In one embodiment, the motor body further includes the winding outgoing line circuit plate being set in the casing, institute
Stating electric machine assembly further includes winding leads and winding connection plug, one end of the winding leads and the winding outgoing line circuit plate
Connection, the other end are connect with the winding connection plug, and the winding connection plug is connect with the drive circuit board.
In one embodiment, the electric machine assembly further includes being sheathed on the one end of the rotation axis far from the magnet
Output gear, the output gear and the rotation axis are interference fitted.
Another object of the present invention is to provide a kind of steering engines comprising electric machine assembly as described above.
Implement a kind of electric machine assembly of the invention, has the advantages that it by the way that magnetic coding chip is integrated in drive
On dynamic circuit board, and magnet is set to motor body and encodes core close to the end of one end of drive circuit board, the magnet and magnetic
The setting of piece interval and center alignment, can maximally utilise the axial space of motor body, promote the torque density of motor
And power density, so that the improved efficiency of servo-system, temperature rise is reduced；In addition, magnetic coding chip and drive circuit board integrated one
After body, reducing around magnetic coding chip has magnetic source or current source to the interference of magnetic coding chip, improves servo motor position
The precision set enhances the reliability of servo-system.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the configuration schematic diagram of electric machine assembly provided in an embodiment of the present invention；
Fig. 2 is the part isometric structural schematic diagram (one) of electric machine assembly provided in an embodiment of the present invention；
Fig. 3 is the part isometric structural schematic diagram (two) of electric machine assembly provided in an embodiment of the present invention；
Fig. 4 is the configuration schematic diagram of rotor and magnet provided in an embodiment of the present invention；
Fig. 5 is the cross-sectional view of motor body provided in an embodiment of the present invention.
Label detail involved in above-mentioned attached drawing is as follows:
1- drive circuit board；11- socket；2- magnetic coding chip；3- motor body；31- rotation axis；32- rotor core；
33- rotor permanent magnet；34- bearing；35- armature winding；36- bobbin winder bracket；37- stator core；38- casing；381- front cover；382-
Winding outgoing line circuit plate；39- rear end cap；391- connection positioning column；41- magnet；42- gasket；5- winding leads；6- winding connection
Plug；7- output gear.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
It should be noted that when component is referred to as " being fixed on " or " being set to " another component, it can directly or
It connects and is located on another component.When a component referred to as " is connected to " another component, it be can be directly or indirectly
It is connected on another component.Term " on ", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top",
The orientation or position of the instructions such as "bottom", "inner", "outside" are orientation based on the figure or position, are merely for convenience of describing,
It should not be understood as the limitation to the technical program.Term " first ", " second " are used merely to facilitate description purpose, and should not be understood as
Indication or suggestion relative importance or the quantity for implicitly indicating technical characteristic.The meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In order to illustrate technical solutions according to the invention, it is described in detail below in conjunction with specific accompanying drawings and embodiments.
It please refers to Fig.1 to Fig.3, the embodiment of the invention provides a kind of electric machine assemblies, including drive circuit board 1, magnetic to encode
Chip 2 and motor body 3.Wherein, magnetic coding chip 2 is integrated on drive circuit board 1, and motor body 3 is connected to driving circuit
On plate 1.The end of one end of drive circuit board 1 is provided with magnet 41 in motor body 3, the magnet 41 and magnetic coding chip
2 interval settings and center alignment, also, magnet 41 is installed on the end of motor rotation axis.Wherein, magnet 41 is the strong magnetic of neodymium iron boron
Material, a pair of of pole or multipair polar diameter to or parallel magnetization, after rotation generate alternation sinusoidal magnetic field, and with magnetic coding chip 2
With the use of the detection to realize motor rotor position.
In a particular application, motor body 3 is permanent magnet synchronous motor, such as high performance servo permanent magnet synchronous motor；Driving electricity
Road plate 1 is equipped with driving circuit, which works for driving motor ontology 3；In addition, magnet 41 and magnetic coding chip 2
Between it is spaced apart, which can determine according to the magnet 41 and magnetic coding chip 2 that actually use.
Magnet 41 is set to motor by the way that magnetic coding chip 2 to be integrated on drive circuit board 1 by the embodiment of the present invention
Ontology 3 is close to the end of one end of drive circuit board 1, which is spaced setting with magnetic coding chip 2 and center is aligned, can be with
The axial space for maximally utilising motor body 3 promotes the torque density and power density of motor, so that servo-system
Improved efficiency, temperature rise reduce；In addition, reducing magnetic coding chip 2 weeks after magnetic coding chip 2 and drive circuit board 1 are integrated
That encloses has magnetic source or current source to the interference of magnetic coding chip 2, improves the precision of servo motor position, enhances servo-system
Reliability.
In one embodiment, it is also integrated with the decoding circuit of magnetic coding chip 2, on drive circuit board 1 in order to letter
Change board structure of circuit, so that electric machine assembly overall structure is more compact.In a particular application, magnetic coding chip 2 is all
Peripheral circuit is all integrated on drive circuit board 1.
Incorporated by reference to Fig. 4 and Fig. 5, in one embodiment, motor body 3 includes rotor, which specifically includes rotation axis
31, rotor core 32, rotor permanent magnet 33 and bearing 34.Wherein, rotor core 32 is sheathed on outside rotation axis 31, rotor permanent magnet
33 are sheathed on outside rotor core 32, and bearing 34 is sheathed on the both ends of rotation axis 31, i.e., are arranged with axis at the both ends of rotation axis 31
Hold 34.In the present embodiment, magnet 41 is sheathed on rotation axis 31 close to the end of one end of magnetic coding chip 2, the magnet 41
The end face of end face and rotation axis 31, also, the magnet 41 and rotation axis 31 are coaxially disposed.Optionally, rotor permanent magnet 33
It is adhered on rotor core 32, rotor core 32 and rotation axis 31 are interference fitted, to guarantee that rotor core 32 and rotation axis 31 are same
Step rotation.In a particular application, rotor permanent magnet 33 is circular or tile, also, rotor permanent magnet 33 is neodymium iron boron material
Material, has high-energy density.
In one embodiment, electric machine assembly further includes gasket 42, and the end face of magnet 41 and the end face of gasket 42 are bonded in
Together.In the present embodiment, for gasket 42 between magnet 41 and bearing 34, which is that rotation axis 31 leans near magnet 41 1
The bearing 34 at end has certain distance between gasket 42 and bearing 34.Wherein, gasket 42 is non-magnet material, is played every magnetic
Effect.In a particular application, magnet 41 and gasket 42 are annular in shape.
In one embodiment, gasket 42 and rotation axis 31 are interference fitted, to guarantee that gasket 42 and rotation axis 31 coaxially turn
It is dynamic；Magnet 41 and 31 clearance fit of rotation axis have gap, fill out in this gap that is, between magnet 41 and rotation axis 31
Object is filled, which can be glue, and glue is for magnet 41 and rotation axis 31 to be fixed together, to increase magnet 41
Centrifugal force.
In one embodiment, motor body 3 further include armature winding 35, bobbin winder bracket 36, stator core 37, casing 38,
Front cover 381 and rear end cap 39.Wherein, armature winding 35 is wound on bobbin winder bracket 36, and bobbin winder bracket 36 is sheathed on rotor permanent magnet 33
Outside, stator core 37 is sheathed on outside bobbin winder bracket 36, and casing 38 is sheathed on outside stator core 37, and front cover 381 and rear end cap 39 are distinguished
The both ends of casing 38 are covered on, and rear end cap 39 is covered on casing 38 close to the end of one end of drive circuit board 1.Optionally,
Casing 38 and front cover 381 are integrally formed, in order to simplify structure and save the cost.In the present embodiment, rotation axis 31 front end
Bearing 34 between front cover 381 and rotation axis 31, the bearing 34 of 31 rear end of rotation axis be located at rear end cap 39 and rotation axis 31 it
Between, the end face three of the end face of 31 rear end of rotation axis, the end face of magnet 41 and rear end cap 39 flushes, to save the axis of motor
To space.In a particular application, stator core 37 is that low iron loss silicon steel sheet stack is pressed into.
In addition, in the present embodiment, multiple connection positioning columns 391, the connection are provided on the outer surface of rear end cap 39
Positioning column 391 is for connecting drive circuit board 1, so that motor body 3 links together with drive circuit board 1.In concrete application
In, the number of connection positioning column 391 can be determines according to actual conditions.
In one embodiment, multiple connection positioning columns 391 are evenly arranged in the surroundings of rotation axis 31, in order to by motor
Ontology 3 is stably mounted on drive circuit board 1, and makes the end face of magnet 41 parallel with the end face of drive circuit board 1.At this
In embodiment, the height of multiple connection positioning columns 391 is identical, and the specific height for connecting positioning column 391 is compiled by magnet 41 and magnetic
The convenient axial distance of code chip 2 determines.In a particular application, outer surface of multiple connection positioning columns 391 with rear end cap 39
Vertically, it is offered on drive circuit board 1 and connect the one-to-one location hole of positioning column 391.
In one embodiment, motor body 3 further includes the winding outgoing line circuit plate 382 being set in casing 38, motor
Component further includes winding outgoing line circuit plate 382.Wherein, one end of winding leads 5 is connect with winding outgoing line circuit plate 382, winding
The other end of lead 5 is connect after passing through casing 38 with the winding connection plug 6, and winding connection plug 6 and drive circuit board 1 connect
It connects.Specifically, socket 11 is provided on drive circuit board 1, winding connection plug 6 is inserted on socket 11, and then realize with
The connection of drive circuit board 1.In a particular application, winding leads 5 are three-phase winding connection lines 5.
In one embodiment, electric machine assembly further includes the output gear for being sheathed on the one end of rotation axis 31 far from magnet 41
7, the output gear 7 with external teeth roller box or other kinds of deceleration device for connecting, also, the output gear 7 and rotation
Axis 31 is interference fitted, to guarantee that the output torque of motor body 3 can be transmitted outward.
It should be pointed out that in a particular application, 2 peripheral circuit of magnetic coding chip 2, socket 11 and magnetic coding chip
All electronic components be welded on drive circuit board 1.
The embodiment of the invention also provides a kind of steering engines comprising electric machine assembly as described above.In a particular application,
Steering engine further includes shell, reduction gear and steering engine output shaft, wherein electric machine assembly, reduction gear and steering engine output
Axis is all set in shell, and the chopped-off head gear of reduction gear is engaged with the output gear 7 of motor, the end of reduction gear
Grade gear is engaged with the steering engine output gear on steering engine output shaft.
The foregoing is merely alternative embodiments of the invention, are not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of electric machine assembly, which is characterized in that encode core including drive circuit board, the magnetic being integrated on the drive circuit board
Piece, and the motor body being connected on the drive circuit board, the motor body is close to one end of the drive circuit board
End be provided with magnet, the magnet is installed on the end of motor rotation axis, the magnet and magnetic coding chip interval
Setting and center alignment.
2. electric machine assembly as described in claim 1, which is characterized in that be also integrated with the magnetic coding on the drive circuit board
The decoding circuit of chip.
3. electric machine assembly as described in claim 1, which is characterized in that the motor body includes rotor, and the rotor includes
Rotation axis, the rotor core being sheathed on outside the rotation axis, the rotor permanent magnet being sheathed on outside the rotor core, and be arranged
Bearing in the rotation axis both ends, the magnet are sheathed on the rotation axis close to the end of one end of the magnetic coding chip
And it is coaxially disposed with the rotation axis.
4. electric machine assembly as claimed in claim 3, which is characterized in that the electric machine assembly further includes non-magnetic gasket, institute
It states gasket to connect with the magnet, the gasket is between the magnet and the bearing.
5. electric machine assembly as claimed in claim 4, which is characterized in that the gasket and the rotation axis are interference fitted, described
Magnet and the rotation axis clearance fit, filled with filler in the gap between the magnet and the rotation axis.
6. electric machine assembly as claimed in claim 3, which is characterized in that the motor body further includes being sheathed on the rotor forever
Bobbin winder bracket outside magnet, the stator core being sheathed on outside the bobbin winder bracket, is sheathed on the armature winding for being wound in the bobbin winder bracket
Casing outside the stator core, and it is covered on the casing close to the rear end cap of one end of the drive circuit board, it is described
It is provided on the outer surface of rear end cap multiple for connecting the connection positioning column of the drive circuit board.
7. electric machine assembly as claimed in claim 6, which is characterized in that multiple connection positioning columns are evenly arranged in the rotation axis
Surrounding.
8. electric machine assembly as claimed in claim 6, which is characterized in that the motor body further includes being set in the casing
Winding outgoing line circuit plate, the electric machine assembly further includes winding leads and winding connection plug, one end of the winding leads
Connect with the winding outgoing line circuit plate, the other end is connect with the winding connection plug, the winding connection plug with it is described
Drive circuit board connection.
9. such as the described in any item electric machine assemblies of claim 3 to 8, which is characterized in that the electric machine assembly further includes being sheathed on
The output gear of the one end of the rotation axis far from the magnet, the output gear and the rotation axis are interference fitted.
10. a kind of steering engine, which is characterized in that including electric machine assembly as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811561503.0A CN109742905A (en) | 2018-12-20 | 2018-12-20 | A kind of electric machine assembly and steering engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811561503.0A CN109742905A (en) | 2018-12-20 | 2018-12-20 | A kind of electric machine assembly and steering engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109742905A true CN109742905A (en) | 2019-05-10 |
Family
ID=66360720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811561503.0A Pending CN109742905A (en) | 2018-12-20 | 2018-12-20 | A kind of electric machine assembly and steering engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109742905A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380526A (en) * | 2019-07-15 | 2019-10-25 | 珠海凯邦电机制造有限公司 | A kind of motor stator component and motor |
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| CN107070157A (en) * | 2017-01-18 | 2017-08-18 | 日本电产凯宇汽车电器（江苏）有限公司 | A kind of automobile brake system brushless electric machine |
| CN206432854U (en) * | 2016-11-25 | 2017-08-22 | 上海擎朗智能科技有限公司 | A kind of wheel hub motor |
| CN207082974U (en) * | 2017-08-25 | 2018-03-09 | 北京进化者机器人科技有限公司 | Wheel hub motor and wheel hub motor system |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201821222U (en) * | 2010-10-21 | 2011-05-04 | 陈广娥 | Mounting structure for magnetic encoder of permanent magnetic synchronous motor |
| CN203813633U (en) * | 2014-04-02 | 2014-09-03 | 深圳市源恒磁机电技术有限公司 | Ultra-thin permanent magnet synchronous motor |
| CN205207432U (en) * | 2015-12-14 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic suspension bearing stator module |
| CN206099665U (en) * | 2016-08-31 | 2017-04-12 | 江苏大电机电有限公司 | Take magnetic encoder's permanent magnet brushless DC motor |
| CN206432854U (en) * | 2016-11-25 | 2017-08-22 | 上海擎朗智能科技有限公司 | A kind of wheel hub motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380526A (en) * | 2019-07-15 | 2019-10-25 | 珠海凯邦电机制造有限公司 | A kind of motor stator component and motor |
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Application publication date: 20190510 |