CN207117448U - It is a kind of for automobile power back door case strut without magnetic disturbance direct current generator - Google Patents
It is a kind of for automobile power back door case strut without magnetic disturbance direct current generator Download PDFInfo
- Publication number
- CN207117448U CN207117448U CN201720974554.0U CN201720974554U CN207117448U CN 207117448 U CN207117448 U CN 207117448U CN 201720974554 U CN201720974554 U CN 201720974554U CN 207117448 U CN207117448 U CN 207117448U
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- Prior art keywords
- direct current
- rotor
- back door
- current generator
- middle plate
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model is related to it is a kind of for automobile power back door case strut without magnetic disturbance direct current generator,Including stator,Rotor and end cap,Rotor is located at stator interior,End cap is covered in the end face of stator,Stator includes casing and magnet steel,Magnet steel is fitted in casing inner wall,Rotor includes rotary shaft and rotor core,Rotary shaft wears case axis,Rotor core is worn on the rotary shaft,Rotor core is provided with several teeth portion,Groove is provided between two neighboring teeth portion,By to the ratio relation optimization design between stator and rotor,Make the magnetic circuit circulation that rationalization is formed between rotor and stator,Leakage field phenomenon will not occur for casing,Effectively avoid viscous iron powder phenomenon,Reduce influence of the magnetic disturbance to electronic component,And the magnetic flux for entering main magnetic circuit is higher,Magnet steel can also be fully used,Corresponding increase Motor torque,Power density is higher during same volume,Then volume can reduce during same power use.
Description
Technical field
The utility model is related to vehicle-mounted technical field of motors, especially it is a kind of for automobile power back door case strut without magnetic
Disturb direct current generator.
Background technology
Automobile power back door case strut direct current permanent magnet motor on domestic and international market at present, diameter and length all especially have
It is required that limitation, because the big stroke for influenceing screw mandrel and closing the door of motor length, direct current permanent magnet motor is largely using bonding neodymium iron at present
The mode of boron magnet ring, the motor torsion performance that this mode is made is not relatively high, and volume is relative big, and being not suitable for many vehicles makes
With, small part producer also has by the way of sintered NdFeB magnet steel in addition, but because magnet steel performance is too strong and rotor core silicon
The design of steel disc teeth portion is unreasonable to be restricted, and magnetic circuit circulation, which is obstructed, occurs that leakage field is very serious outside casing, can so produce magnetic and do
Disturb the electronic component on influence automobile tail gate case and strut outer tube and viscous iron powder phenomenon also easily occur, security reliability is difficult to protect
Barrier, and this design causes rare earth magnetic steel to be underutilized and waste, and the torque of motor output can also decay reduction, separately
Outer tail-gate case strut can cause workload to aggravate when switch gate encounters barrier, microthermal climate or slope so that stall
Electric current sharply increases with rated current, causes motor internal heating in winding severe, particularly size after the temperature rise of copper brush box
Change can influence conductive carbon activity of the activity in copper brush box and have some setbacks even stuck, cause systematic function to reduce or not work
Make.
Utility model content
To solve the above problems, the utility model provides, a kind of motor case leakage field is small, and magnetic disturbance is small and performance is high, power
Density is big, small volume, safety and reliability it is higher be used for automobile tail gate case strut without magnetic disturbance direct current generator.
To achieve the above object, the utility model, which adopts the following technical scheme that, is：One kind is used for automobile power back door case
Strut is located at stator interior without magnetic disturbance direct current generator, including stator, rotor and end cap, the rotor, and the end cap is located at
The end face of stator, the stator include casing and magnet steel, and the magnet steel is high performance sintered neodymium-iron-boron magnet steel, four high property
Energy sintered NdFeB magnet steel is fitted in casing inner wall, and the rotor includes rotary shaft and rotor core, and the rotary shaft is arranged in
Case axis, the rotor core are worn on the rotary shaft, and the rotor core is provided with six teeth portion；；
It is described for automobile power back door strut without magnetic disturbance direct current generator, meet following condition：
B1/B2=1.85-2.5；
D1/B1=6.0-6.5；
D2/B2=14-17；
Wherein, B1 is the width of teeth portion, and B2 is the thickness of casing, and D1 is the external diameter of rotor core, and D2 is the internal diameter of casing.
Preferably, this condition is also met：B2/A1=1.3-1.7, A1 are the thickness of magnet steel.
Preferably, the end cap includes iron covering, middle plate, copper brush box, inductance capacitor element, connection copper tip and conductive carbon
Essence, the middle plate are fixedly connected with iron covering, and the copper brush box is connected through middle plate with middle plate rivet, and the iron covering is provided with some
Individual emptiness avoiding hole, the position of the emptiness avoiding hole is corresponding with the position of copper brush box, and the inductance capacitance is located on middle plate, the connection
Copper tip is fixedly connected through iron covering with middle plate and with middle plate, and the conductive carbon is in copper brush box.
Preferably, the position of emptiness avoiding hole is corresponding with the position of copper brush box, and the two neighboring empty avoiding central point of hole with
The angle that iron covering central point is formed is 70 ° -110 °.
Preferably, it is provided with groove between two adjacent fingers.
Preferably, the rotor also includes winding and commutator, and the winding is located in groove, one end of the commutator
Contacted with rotor core, the other end contacts with conductive carbon.
Preferably, the end cap also includes inductance capacitor element, connects copper tip and conductive carbon, and the inductance capacitance is set
On middle plate, the connection copper tip is fixedly connected through iron covering and middle plate and with both, and the conductive carbon is located at copper brush box
It is interior.
Preferably, in addition to axle sleeve, the axle sleeve wear on the rotary shaft and are located at bottom of shell.
Preferably, in addition to the first oiliness bearing and the second oiliness bearing, first, second oiliness bearing are located in rotation
In rotating shaft, first oiliness bearing is located between iron covering and middle plate, and second oiliness bearing is located between axle sleeve and casing.
Preferably, described rotor core is silicon steel sheet.
The beneficial effects of the utility model are：The utility model, which is arranged in automobile power back door case strut outer tube, to be made
With, the utility model small volume, make strut outer tube small volume so as to reduce interference risk when tail-gate is closed, to seriation, more
Money vehicle is applicable.
The utility model is by the ratio relation optimization design between stator and rotor, passing through magnetic field caused by magnet steel
The smooth teeth portion for being passed to rotor core of air gap between stator and rotor, magnetic force return to teeth portion by the yoke portion of rotor core again
And the magnetic circuit rationalized is formed with casing and is circulated, leakage field phenomenon will not occur for casing, effectively avoid viscous iron powder phenomenon, thus drop
Influence of the low magnetic disturbance to electronic component, and the magnetic flux for entering main magnetic circuit is higher, magnet steel can also be fully used, corresponding to increase
Add Motor torque, power density is higher during same volume, then volume can reduce during same power use.
Copper brush box is connected with middle plate rivet, emptiness avoiding hole, the position of set emptiness avoiding hole and the position of copper brush box are set on iron covering
Put corresponding, and fill in emptiness avoiding hole radiating silicon cream, the high temperature on copper brush box and carbon is passed through copper brush box and radiating silicon cream
Heat conduction increases motor internal area of dissipation, extends the motor rotation blockage time, reduce motor internal temperature to above iron covering and distributing
Rise, reduce conductive carbon in motor copper brush box due to after heating activity have some setbacks or stuck failure risk, improve whole motor
The safety and reliability of work.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the diagrammatic cross-section of the utility model front view.
Fig. 3 is the schematic top plan view that the utility model removes end cap.
Fig. 4 is schematic top plan view of the present utility model.
Description of reference numerals：1. stator；11. casing；12. magnet steel；2. rotor；21. rotary shaft；22. rotor core；221.
Teeth portion；23. winding；24. commutator；3. end cap；31. iron covering；311. emptiness avoiding hole；Plate in 32.；33. inductance capacitor element；34.
Connect copper tip；35. copper brush box；36. conductive carbon；4. axle sleeve；5. the first oiliness bearing；6. the second oiliness bearing.
Embodiment
Refer to shown in Fig. 1-4, the utility model is on a kind of for the straight without magnetic disturbance of automobile power back door case strut
Motor, including stator 1, rotor 2 and end cap 3 are flowed, inside stator 1, the end cap 3 covers at the end of stator 1 rotor 2
Face, the stator 1 include casing 11 and magnet steel 12, and the magnet steel 12 is fitted in the inwall of casing 11, and the rotor 2 includes rotary shaft
21 wear the axle center of casing 11 with rotor core 22, the rotary shaft 21, and the rotor core 22 is located in rotary shaft 21, described
Rotor core 22 is provided with several teeth portion 221, and described end cap 3 includes iron covering 31, middle plate 32 and copper brush box 35, the middle plate 32
It is fixedly connected with iron covering 31, the copper brush box 35 is connected through middle plate 32 with the middle rivet of plate 32, and the iron covering 31 is provided with some
Individual emptiness avoiding hole 311, the position of the emptiness avoiding hole 311 are corresponding with the position of copper brush box 35；
It is described for automobile power back door case strut without magnetic disturbance direct current generator, meet following condition：
B1/B2=1.85-2.5；
B2/A1=1.3-1.7；
D1/B1=6.0-6.5；
D2/B2=14-17；
Wherein, A1 is the width of magnet steel 12, and B1 is the width of teeth portion 221, and B2 is the thickness of casing 11, and D1 is rotor core
22 external diameter, D2 are the internal diameter of casing 11.
Preferably, the magnet steel 12 is high performance sintered neodymium-iron-boron magnet steel 12.
Preferably, described rotor core 22 is silicon steel sheet.
Preferably, the end cap includes iron covering, middle plate, copper brush box, inductance capacitor element, connection copper tip and conductive carbon
Essence, the middle plate are fixedly connected with iron covering, and the copper brush box is connected through middle plate with middle plate rivet, and the iron covering is provided with some
Individual emptiness avoiding hole, the position of the emptiness avoiding hole is corresponding with the position of copper brush box, and the inductance capacitance is located on middle plate, the connection
Copper tip is fixedly connected through iron covering with middle plate and with middle plate, and the conductive carbon is located in copper brush box
Preferably, the position of emptiness avoiding hole is corresponding with the position of copper brush box, and the two neighboring central point of the emptiness avoiding hole 311
The angle formed with the central point of iron covering 31 is 70 ° -110 °.
Preferably, it is provided with groove between two neighboring teeth portion 221.
Preferably, the rotor 2 also includes winding 23 and commutator 24, and the winding 23 is located in groove, the commutation
One end of device 24 contacts with rotor core 22, and the other end contacts with conductive carbon 36, when electric current is transmitted to conductive carbon 36, passes through
Conductive carbon 36 and the sliding contact of commutator 24, commutator 24 pass to electric current in the winding 23 of winding rotor core 22 respectively.
Preferably, the end cap 3 also includes inductance capacitor element 33, connection copper tip 34 and conductive carbon 36, the electricity
Electrification is installed with middle plate 32, and the connection copper tip 34 is fixedly connected through iron covering 31 and middle plate 32 and with both, described to lead
Electrical carbon essence 36 is in copper brush box 35.
Preferably, in addition to axle sleeve 4, the axle sleeve 4 are located in rotary shaft 21 and are located at the bottom of casing 11.
Preferably, in addition to the first oiliness bearing 5 and the second oiliness bearing 6, first, second oiliness bearing 6 are worn
In rotary shaft 21, first oiliness bearing 5 is located between iron covering 31 and middle plate 32, and second oiliness bearing 6 is located at axle
Between set 4 and casing 11.
Operation principle：Enter inductance capacitor element 33 when power positive cathode electric current flows separately through two connection copper tips 34
On, then by the bottom of inductance capacitor element 33 pass to it weld the lead-foot-line of conductive carbon 36 on, by conductive carbon 36 with
The sliding contact of commutator 24, commutator 24 pass to electric current in the winding 23 of winding rotor core 22 respectively, and electric current passes through winding
Form both positive and negative polarity loops in 23 with two pairs of conductive carbons 36, the electric current in winding 23 makes the silicon steel sheet of rotor core 22 produce magnetic
Change, produce the magnetized magnetic field of rotor 2 and the main field interaction of four magnet steel 12 produces electromagnetic torque so that central rotation portion
The circle rotation of rotor 2 divided is got up and output torque band dynamic load is done work.
Embodiment of above is only that preferred embodiment of the present utility model is described, not to the utility model
Scope be defined, on the premise of the utility model design spirit is not departed from, this area ordinary skill technical staff to this
The various modifications and improvement that the technical scheme of utility model is made, the guarantor that claims of the present utility model determine all should be fallen into
In the range of shield.
Claims (9)
1. it is a kind of for automobile power back door case strut without magnetic disturbance direct current generator, including stator, rotor and end cap, described turn
Son is located at stator interior, and the end cap is located at the end face of stator, and the stator includes casing and magnet steel, and the magnet steel is sintering neodymium
Iron boron magnet steel, four sintered NdFeB magnet steel are fitted in casing inner wall, and the rotor includes rotary shaft and rotor core, institute
State rotary shaft and be arranged in case axis, the rotor core is worn on the rotary shaft, and the rotor core is provided with six teeth portion；Its
It is characterised by,
It is described for automobile power back door strut without magnetic disturbance direct current generator, meet following condition：
B1/B2=1.85~2.5；
D1/B1=6.0~6.5；
D2/B2=14~17；
Wherein, B1 is the width of teeth portion, and B2 is the thickness of casing, and D1 is the external diameter of rotor core, and D2 is the internal diameter of casing.
2. it is according to claim 1 for automobile power back door case strut without magnetic disturbance direct current generator, it is characterised in that
Also meet this condition：B2/A1=1.3~1.7, A1 are the thickness of magnet steel.
3. it is according to claim 1 for automobile power back door case strut without magnetic disturbance direct current generator, it is characterised in that
The end cap includes iron covering, middle plate, copper brush box, inductance capacitor element, connection copper tip and conductive carbon, the middle plate and iron covering
It is fixedly connected, the copper brush box is connected through middle plate with middle plate rivet, and the iron covering is provided with several emptiness avoiding holes, the empty avoiding
The position in hole is corresponding with the position of copper brush box, and the inductance capacitance is located on middle plate, it is described connection copper tip through iron covering with
Middle plate is simultaneously fixedly connected with middle plate, and the conductive carbon is in copper brush box.
4. it is according to claim 3 for automobile power back door case strut without magnetic disturbance direct current generator, it is characterised in that
The position of emptiness avoiding hole is corresponding with the position of copper brush box, and the two neighboring empty avoiding central point of hole is formed with iron covering central point
Angle be 70 °~110 °.
5. it is according to claim 1 for automobile power back door case strut without magnetic disturbance direct current generator, it is characterised in that
The rotor also includes winding and commutator, and the winding is located in the groove between two neighboring teeth portion, and the commutator is worn
If on the rotary shaft and located between rotor core and end cap.
6. it is according to claim 1 for automobile power back door case strut without magnetic disturbance direct current generator, it is characterised in that
The end cap also includes inductance capacitor element, connection copper tip and conductive carbon, the inductance capacitance and is located on middle plate, the company
Copper tip is connect through iron covering and middle plate and is fixedly connected with both, the conductive carbon is located in copper brush box.
7. it is according to claim 1 for automobile power back door case strut without magnetic disturbance direct current generator, it is characterised in that
Also include axle sleeve, the axle sleeve wears on the rotary shaft and is located at bottom of shell.
8. it is according to claim 1 for automobile power back door case strut without magnetic disturbance direct current generator, it is characterised in that
Also including the first oiliness bearing and the second oiliness bearing, first, second oiliness bearing is worn on the rotary shaft, and described first
Oiliness bearing is located between iron covering and middle plate, and second oiliness bearing is located between axle sleeve and casing.
9. it is according to claim 1 for automobile power back door case strut without magnetic disturbance direct current generator, it is characterised in that
Described rotor core is silicon steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720974554.0U CN207117448U (en) | 2017-08-07 | 2017-08-07 | It is a kind of for automobile power back door case strut without magnetic disturbance direct current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720974554.0U CN207117448U (en) | 2017-08-07 | 2017-08-07 | It is a kind of for automobile power back door case strut without magnetic disturbance direct current generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207117448U true CN207117448U (en) | 2018-03-16 |
Family
ID=61572788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720974554.0U Expired - Fee Related CN207117448U (en) | 2017-08-07 | 2017-08-07 | It is a kind of for automobile power back door case strut without magnetic disturbance direct current generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207117448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108639006A (en) * | 2018-07-04 | 2018-10-12 | 江苏吉厚智能制造有限公司 | Automobile tail gate radar open system |
-
2017
- 2017-08-07 CN CN201720974554.0U patent/CN207117448U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108639006A (en) * | 2018-07-04 | 2018-10-12 | 江苏吉厚智能制造有限公司 | Automobile tail gate radar open system |
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Legal Events
| 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: 20180316 Termination date: 20200807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |