CN106230206A - A kind of armature manufacture method of New-type electric machine - Google Patents
A kind of armature manufacture method of New-type electric machine Download PDFInfo
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- CN106230206A CN106230206A CN201610811376.XA CN201610811376A CN106230206A CN 106230206 A CN106230206 A CN 106230206A CN 201610811376 A CN201610811376 A CN 201610811376A CN 106230206 A CN106230206 A CN 106230206A
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- winding
- armature
- section
- commutator segment
- iron core
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
- H02K15/0435—Wound windings
Abstract
In electro-mechanical arts, the axis of armature winding is usually radially, and the direct current generator being consequently formed produces spark or there is recoil electric current when commutation, and the cage modle being consequently formed sensing threephase asynchronous exists the shortcomings such as starting torque is little, operation torque is little.The invention discloses the armature manufacture method of a kind of New-type electric machine, the iron core of armature winding is in the form of a ring.When direct current generator, owing to armature winding is circle-shaped iron core winding in rotational direction and be that segmentation is reverse, when therefore armature supply connects excitation, impedance is extremely low, also will not produce spark and reverse impact electric current during commutation.When vicarious threephase asynchronous, stator field is vertical with rotor field, even if motor speed is 0, motor also can produce the most sufficiently large moment.Which solve the generation spark that direct current generator in prior art produces or the problem producing recoil electric current, and cage modle senses the problem that threephase asynchronous starting torque is little, operation torque is little.
Description
Technical field
The present invention relates to a kind of motor product, specifically, relate to the armature manufacture method of a kind of New-type electric machine.
Background technology
In electro-mechanical arts, the axis of the armature winding of direct current generator is usually radially, the armature winding ferrum of direct current generator
Core be strip be also radially, the magnetic direction that in armature, excitation produces is radially, the brushed DC motor being consequently formed
Spark is produced, the existence recoil electric current of armature, the waste energy and right during the brshless DC motor being consequently formed commutation during commutation
Control circuit forms impact；When using as low speed torque motor, when motor is in commutation position, moment output instability.
The magnetic direction that in the armature of cage modle sensing threephase asynchronous, excitation produces is radially, has that starting torque is little, work
Make the shortcomings such as torque is little, it is difficult to meet the needs that bringing onto load starts, overload in short-term often occurs and stall when being used for driving
Even burn out motor.
Summary of the invention
The invention discloses the armature manufacture method of a kind of New-type electric machine, armature core ringwise, after excitation in armature
Magnetic direction is consistent with turning circumference direction.
When direct current generator, armature winding iron core is annular, the axis of armature winding circumferentially shape.For there being brush straight
During stream motor, armature winding is as rotor, and permanent magnet (or Exciting Windings for Transverse Differential Protection) is made up of by its stator n (n > 1)；The sheet of diverter
Number is 2nm (wherein m is more than 2), is numbered by commutator segment for starting point with the most a piece of, and is connected by the commutator segment wire that difference is 2m
Pick up, make them be in same potential level.Winding is connected with commutator segment and laying of brush mainly has three kinds of modes: the
A kind of mode be winding along iron core circumference, with same direction winding on iron core, join end to end.Iron core circumference is divided into 2nm
Segment, corresponding with commutator segment, to the every little segment number of iron core circumference, during winding, start winding from first paragraph, by this section around
After group completes, then start next section of winding, until final stage completes, wire end is connected with the starting end of first paragraph.
The starting end of each for winding section is wired to the commutator segment (not blocking winding conducting wire) of correspondence simultaneously.With two brushes.
Brush is placed in the both sides of a permanent magnet (or Exciting Windings for Transverse Differential Protection), is spaced apart m-1 the commutator segment width plus interval.The second
Mode is that iron core circumference is divided into 2nm isometric segment, numbers as corresponding commutator segment, and winding is by m root wire winding
Forming m independent winding, the starting end of the 1st wire is connected to the 1st commutator segment, in the 1st section of positive direction of iron core circumference
Winding (an optional direction is as positive direction), is connected to 1+m section with opposite direction winding, is then connected to 1+2m section after completing,
With positive direction winding, it is then connected to 1+3m section, with opposite direction winding ..., until 1+(2n-1) m is with opposite direction winding, last
End is connected to 1+m commutator segment.The starting end of the 2nd wire is connected to the 2nd commutator segment, at the 2nd section of positive direction winding, connects
To 2+m section with opposite direction winding, be then connected to 2+2m section with positive direction winding, be then connected to 2+3m section with opposite direction around
Group ..., until 2+(2n-1) m is with opposite direction winding, end is connected to 2+m commutator segment...., opening of m root wire
Top is connected to m-th commutator segment, at m section positive direction winding, is connected to m+m section with opposite direction winding, is then connected to m+
2m section, with positive direction winding, is then connected to m+3m section with opposite direction winding ... until m+(2n-1) m with opposite direction winding,
End is connected to m+m commutator segment.With two brushes, brush is placed under adjacent two permanent magnet (or Exciting Windings for Transverse Differential Protection)
Face, the width of brush is m-1 commutator segment (include interval) width, is spaced apart 1 commutator segment (including interval) between brush
Width.Winding and the mode of connection of the third mode are identical with the second, and simply the width of brush is that 1 commutator segment is (between including
Every) width, brush is arranged on the centre of adjacent permanent magnet, is mainly used as tachometer generator.When brshless DC motor, armature
Winding is as stator, and winding method is identical with brush motor above, permanent magnet (or Exciting Windings for Transverse Differential Protection) as rotor, principle also with have
Brush motor is identical.Armature winding has two ways.First kind of way is winding along iron core circumference, with on iron core with same side
To winding, join end to end.Iron core circumference is divided into 2nm segment, to the every little segment number of iron core circumference, opens from first paragraph during winding
Beginning winding, after being completed by this section of winding, then starts next section of winding, until final stage completes, by wire end and the
The starting end of one section connects.Being connected by the end wire being spaced apart the winding of 2m, the starting end in 1 to 2m section is drawn 2m root and is led
Line to voltage input end, forms (1, m+1), (2, m+2) ..., the input of (m, 2m) as m.(or encourage at a permanent magnet
Magnetic winding) under install m Hall element, according to rotational angle, select a pair input input voltage.Second way winding
Method is that iron core circumference is divided into 2nm equal portions, numbers as corresponding commutator segment, and winding is formed m solely by m root wire winding
Vertical winding, the 1st wire in the 1st section of positive direction winding (an optional direction is as positive direction), be connected to 1+m section with
Opposite direction winding, is then connected to 1+2m section with positive direction winding, is then connected to 1+3m section with opposite direction winding ..., until 1
+ (2n-1) m is with opposite direction winding.2nd wire, at the 2nd section of positive direction winding, is connected to 2+m section with opposite direction winding, then
It is connected to 2+2m section with positive direction winding, is then connected to 2+3m section with opposite direction winding ..., until 2+(2n-1) m is with instead
Direction winding...., m root wire, at m section positive direction winding, is connected to m+m section with opposite direction winding, is then connected to m+
2m section, with positive direction winding, is then connected to m+3m section with opposite direction winding ..., until m+(2n-1) m is with opposite direction winding.
M Hall element is installed under a permanent magnet (or Exciting Windings for Transverse Differential Protection), according to rotational angle, defeated to the input of each winding
Enter forward, reverse or 0 voltage.Owing to armature winding electric current is that segmentation is reverse and winding iron core is circle-shaped, therefore
During current turns ON excitation, impedance is low, also will not produce spark and reverse impact electric current during commutation.Which solve in prior art straight
What stream brush motor produced produces spark and the problem in empty power consumption source；When using as DC brushless motor, do not recoil electricity
Stream, energy-conservation and play protection control circuit effect.It is when using as low speed torque motor, low due to excitation impedance during commutation,
Output torque change is little.The when of use as tachogenerator, output voltage linearly spends height, good stability.
When vicarious threephase asynchronous, as stator Exciting Windings for Transverse Differential Protection equipped with 3n(n be integer and more than 3) ferrum
Core, numbers iron core with arbitrary iron core for starting point, and the X phase of three-phase alternating current is around (1,2), (4,5) ..., (3n, 3n+1) two
The equidirectional winding of individual iron core；The Y phase of three-phase alternating current around (2,3), (5,6) ..., (3n+1,3n+2) two iron core Tongfangs
To winding；The Z phase of three-phase alternating current around (3,4), (6,7) ..., (3n+2,3n+3) two equidirectional windings of iron core.As
Along turning circumference in the form of a ring, add m(m on iron core annulus is integer and more than or equal to 3 n) individual copper rings to the armature core of rotor,
Copper ring plane is vertical with turning circumference tangential direction.When the Exciting Windings for Transverse Differential Protection on stator is plus three-phase alternating current, the copper on rotor
Ring produces faradic current, produces moment and makes rotor rotate.Owing to being that multipole drives, when n is more than 4, magnet exciting coil and sensing
Distance between coil is less than between magnet exciting coil and the induction coil of the cage modle sensing threephase asynchronous of same volume size
Distance 1/10th, and moment size is directly proportional to the inverse of distance, opening of the sensing threephase asynchronous of the present invention
The moment produced when kinetic moment is big and works also exceedes than the moment of cage modle sensing threephase asynchronous in the case of same volume
Ten times.
Compared with prior art, use design of the present invention, can reach techniques below effect:
(1) the brushed DC motor manufactured by the present invention will not spark, brshless DC motor will not produce recoil electric current, effectively
Improve the Energy Efficiency Ratio of motor；
(2) the armature impedance manufactured by invention is low, and during commutation, current fluctuation is little, when using as low speed torque motor, changes
To time moment variations little；
(3) the voltage linear degree of the tachogenerator output manufactured by the present invention is good, fluctuates little；
(4) staring torque of the sensing threephase asynchronous manufactured by the present invention is big, and the moment produced during work is in same volume
In the case of also than cage modle sensing threephase asynchronous moment exceed an order of magnitude.
Accompanying drawing explanation
Fig. 1 is that the side of the first winding method during New-type electric machine armature winding method of the present invention manufacture brushed DC motor shows
It is intended to；
Fig. 2 is that the side of the second winding method during New-type electric machine armature winding method of the present invention manufacture brushed DC motor shows
It is intended to；
Fig. 3 is the third winding method during New-type electric machine armature winding method of the present invention manufacture brushed DC tachometer generator
Side schematic view；
Fig. 4 is that the side of the first winding method during New-type electric machine armature winding method of the present invention manufacture brshless DC motor shows
It is intended to；
Fig. 5 is that the side of the second winding method during New-type electric machine armature winding method of the present invention manufacture brshless DC motor shows
It is intended to；
Fig. 6 is side schematic view during New-type electric machine armature winding method manufacture of the present invention sensing threephase asynchronous；
Wherein, 1. brush, 2. permanent magnet (or Exciting Windings for Transverse Differential Protection), 3. winding, 4. permanent magnet (or Exciting Windings for Transverse Differential Protection), 5. permanent magnet
(or Exciting Windings for Transverse Differential Protection), 6. brush, 7. Exciting Windings for Transverse Differential Protection (or permanent magnet), the most circular iron core, 9. commutator segment, 10. electric machine rotation
Axle, 11. Hall elements, 12. Hall elements, 13. copper rings, 14. casing, 15. Exciting Windings for Transverse Differential Protection iron cores, 16. X phases around
Group, 17. Y phase windings, 18. Z phase windings.
Detailed description of the invention:
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Embodiment one: as it is shown in figure 1, be the brushed DC motor utilizing the first method of winding of the present invention to manufacture, in figure
Permanent magnet (or Exciting Windings for Transverse Differential Protection) is 2 right, and the number of n is 2, and the number of m is 4, and in figure, winding arrows direction refers to winding direction,
It it not the sense of current.When two brushes input forward voltage, the generation forward current of the armature winding between two brushes, by
Couple together every 2m in commutator segment, so the armature winding that both sides are adjacent produces reverse current.Close on permanent magnet
The electric current of the armature winding of (or Exciting Windings for Transverse Differential Protection) S level is forward, the armature winding of adjacent permanent magnet (or Exciting Windings for Transverse Differential Protection) N level
Electric current be reverse, they jointly produce moment and make electric machine rotation.One section of winding that during commutation, although commutator segment contacts simultaneously
Both sides are connections, do not work, but magnetic flux change herein is relatively small, and other (m-1) section winding magnetic flux change phases
To relatively big, working on, from the point of view of entirety, during commutation, the moment of motor output is basically unchanged.
Embodiment two: as in figure 2 it is shown, be the brushed DC motor utilizing the second method of winding of the present invention to manufacture, in figure
Permanent magnet (or Exciting Windings for Transverse Differential Protection) is 2 right, and the number of n is 2, and the number of m is 4, and armature winding is divided into m, winding arrows side in figure
To referring to winding direction, it it not the sense of current.When two brushes input forward voltage, produce electric current, brush root in the windings
Forward, reverse or turn-off current is connected according to the position of winding.Although a winding current between brush disconnects, no during commutation
Work, but magnetic flux change herein is relatively small, and other m-1 winding magnetic flux change is relatively large, works on, whole
From the point of view of body, during commutation, the moment of motor output is basically unchanged.
Embodiment three: as it is shown on figure 3, for utilizing the brushed DC of the third method of winding manufacture of the present invention to test the speed generating
Machine, in figure, permanent magnet (or Exciting Windings for Transverse Differential Protection) is 2 right, and the number of n is 2, and the number of m is 4, and armature winding is divided into m, in figure around
The group direction of arrow refers to winding direction, is not the sense of current.When electric machine rotation, produce voltage in the windings, brush according to around
The armature winding being in center position is connected in the position of group.During commutation, at least a winding is connected, now this winding magnetic flux
Change maximum, the voltage stabilization of output, it is directly proportional to rotating speed, the linearity is best.
Embodiment four: as shown in Figure 4, for the brshless DC motor utilizing the first method of winding of the present invention to manufacture, in figure
Permanent magnet (or Exciting Windings for Transverse Differential Protection) is 2 right, and the number of n is 2, and the number of m is 4, and in figure, winding arrows direction refers to winding direction,
It it not the sense of current.When rotating clockwise, when the S level of the permanent magnet (or Exciting Windings for Transverse Differential Protection) as rotor is in 4 hall sensings
Time above device, first input (1, m+1) plus forward voltage, remaining input terminal is in high-impedance state；When as rotor
The S level of permanent magnet (or Exciting Windings for Transverse Differential Protection) when being in above 3 Hall elements, second input (2, m+2) plus just
To voltage, remaining input terminal is in high-impedance state；..., when the S level of the permanent magnet (or Exciting Windings for Transverse Differential Protection) as rotor is in 1
Time above Hall element, the 4th input (4, m+4) plus forward voltage, remaining input terminal is in high-impedance state.When
When being in above 4 Hall elements as the N level of the permanent magnet (or Exciting Windings for Transverse Differential Protection) of rotor, at first input (1, m+
1) plus backward voltage, remaining input terminal is in high-impedance state；When the N level of the permanent magnet (or Exciting Windings for Transverse Differential Protection) as rotor is in
Time above 3 Hall elements, second input (2, m+2) plus backward voltage, remaining input terminal is in high resistant shape
State；..., when the N level of the permanent magnet (or Exciting Windings for Transverse Differential Protection) as rotor is in above 1 Hall element, defeated at the 4th
Entering end (4, m+4) and add backward voltage, remaining input terminal is in high-impedance state；…….So, be in permanent magnet (or excitation around
Group) S level under winding by forward current, the winding being under the N level of permanent magnet (or Exciting Windings for Transverse Differential Protection) passes through reverse current,
The winding that during commutation, reversal point both sides are adjacent be electric current be reverse, current change quantity is identical, and magnetic flux change cancels each other, no
Can produce recoil electric current, during excitation, the magnetic flux change of iron core circumference is also cancelled out each other, and commutating speed is fast, and the moment of output is basic
Constant.
Embodiment five: as it is shown in figure 5, be the brshless DC motor utilizing the first method of winding of the present invention to manufacture, in figure
Permanent magnet (or Exciting Windings for Transverse Differential Protection) is 2 right, and the number of n is 2, and the number of m is 4, and in figure, winding arrows direction refers to winding direction,
It it not the sense of current.When rotating clockwise, when the S level of the permanent magnet (or Exciting Windings for Transverse Differential Protection) as rotor is in 4 hall sensings
Time above device, in all inputs (1, m+1), (2, m+2) ..., (4, m+4) plus forward voltage；When as rotor forever
When the S level of magnet (or Exciting Windings for Transverse Differential Protection) is in above 3 Hall elements, the 1st input (1, m+1) plus reversely electricity
Pressure, remaining input terminal adds forward voltage；When the S level of the permanent magnet (or Exciting Windings for Transverse Differential Protection) as rotor is in 2 hall sensings
Time above device, add forward voltage in the 1st, 2 inputs (1, m+1), (2, m+2) plus backward voltage, remaining input terminal；When
When being in above 1 Hall element as the S level of the permanent magnet (or Exciting Windings for Transverse Differential Protection) of rotor, at the 1st, 2,3 inputs (1, m+
1), (2, m+2), (3, m+3) add forward voltage plus backward voltage, remaining input terminal；When the permanent magnet as rotor (or is encouraged
Magnetic winding) S level when being in above 0 Hall element, at all inputs plus backward voltage, remaining input terminal is plus just
To voltage；…….So, the winding being under the S level of permanent magnet (or Exciting Windings for Transverse Differential Protection) passes through forward current, is in permanent magnet
The N level of (or Exciting Windings for Transverse Differential Protection) passes through reverse current, and the adjacent winding of the winding disconnecting during commutation or connecting is conducting, whole
The magnetic flux change of iron core circumference is 0, cancels each other, and will not produce recoil electric current, and during excitation, magnetic flux change is also cancelled out each other,
Commutating speed is fast, and the moment of output is basically unchanged.
Embodiment six: as shown in Figure 6, for the vicarious threephase asynchronous utilizing the present invention to manufacture, in figure in casing
Exciting Windings for Transverse Differential Protection iron core is 12, and the number of n is 4, installs 12 copper rings on armature annular core, and the number of m is 12, to appoint
One iron core is starting point numbers Exciting Windings for Transverse Differential Protection iron core, and the X phase of three-phase alternating current is around (1,2), (4,5) ..., (3n, 3n+1)
Two equidirectional windings of iron core；The Y phase of three-phase alternating current around (2,3), (5,6) ..., (3n+1,3n+2) two iron cores with
Direction winding；The Z phase of three-phase alternating current around (3,4), (6,7) ..., (3n+2,3n+3) two equidirectional windings of iron core.When
When Exciting Windings for Transverse Differential Protection on stator is plus three-phase alternating current, the copper ring on rotor produces faradic current, produces moment and makes rotor turn
Dynamic.
Claims (6)
1. an armature manufacture method for New-type electric machine, including the manufacture method of armature, it is characterised in that: the invention discloses one
The Novel armature manufacture method of kind of motor, armature winding iron core in the form of a ring, the axis of armature winding and rotor edge rotation direction
Tangential direction (circumferencial direction) consistent.
The armature manufacture method of a kind of New-type electric machine the most according to claim 1, it is characterised in that: n(n is integer and big
In 1) to permanent magnet (or Exciting Windings for Transverse Differential Protection) as stator；The number of the commutator segment of diverter is that 2nm(m is integer and is more than 2),
For starting point, commutator segment is numbered with the most a piece of, and the commutator segment wire that difference is 2m is coupled together, make them be in same
One potential level；Armature winding is as rotor, and its method of winding is the equidirectional winding of ring-type iron core along rotor, phase from beginning to end
Even, being classified as 2nm section, the starting end of every section is connected to corresponding commutator segment；Brush is with two, and the width of brush is more than changing
Interval between sheet adds the interval between them less than the width of commutator segment；Brush is arranged on a permanent magnet and (or encourages
Magnetic winding) edge.
The armature manufacture method of a kind of New-type electric machine the most according to claim 1, it is characterised in that: n(n is integer and big
In 1) to permanent magnet (or Exciting Windings for Transverse Differential Protection) as stator；The number of the commutator segment of diverter is that 2nm(m is integer and is more than 2),
For starting point, commutator segment is numbered with the most a piece of, and the commutator segment wire that difference is 2m is coupled together, make them be in same
One potential level；Ring-type iron core, as rotor, is divided into 2nm equal portions by armature winding, numbers as corresponding commutator segment, whole
Armature winding is divided into the winding that m is independent, and the starting end of the 1st winding is connected to the 1st commutator segment, the 1st section of positive direction around
Group (an optional direction is as positive direction), is connected to 1+m section with opposite direction winding, is then connected to 1+2m section, with positive direction
Winding, is then connected to 1+3m section, with opposite direction winding ... until 1+(2n-1) m is connected to 1+ with opposite direction winding, end
M commutator segment；The starting end of the 2nd winding is connected to the 2nd commutator segment, at the 2nd section of positive direction winding, is connected to 2+m section
With opposite direction winding, it is then connected to 2+2m section, with positive direction winding, is then connected to 2+3m section, with opposite direction winding ..., one
Until 2+(2n-1) m is with opposite direction winding, end is connected to 2+m commutator segment；..., the starting end of m-th winding is connected to
M-th commutator segment, at m section positive direction winding, is connected to m+m section with opposite direction winding, is then connected to m+2m section, with pros
To winding, it is then connected to m+3m section, with opposite direction winding ..., until m+(2n-1) m connects with opposite direction winding, end
To m+m commutator segment；With two brushes, brush is placed under adjacent two permanent magnet (or Exciting Windings for Transverse Differential Protection), the width of brush
Degree is m-1 commutator segment (including interval) width, is spaced apart 1 commutator segment (including being spaced) width between brush.
The armature manufacture method of a kind of New-type electric machine the most according to claim 2, it is characterised in that: n to permanent magnet (or
Person's Exciting Windings for Transverse Differential Protection) as rotor；Armature winding is as stator, and its winding method is identical with described in claim 2；Cancel brush and
Diverter, adds m Hall element；Winding is divided into 2nm section, and it connects to be used wire every 2m, and draws m to leading
Line, the every pair of wire be respectively connecting to (1,1+m), (2,2+m) ..., (m, m+m) section starting end as input；Control electricity
According to the position signalling of Hall element perception, to different winding input power-off, commutate, power in road.
The armature manufacture method of a kind of New-type electric machine the most according to claim 3, it is characterised in that: n to permanent magnet (or
Person's Exciting Windings for Transverse Differential Protection) as rotor；Armature winding is as stator, and its winding method is identical with described in claim 3；Cancel brush and
Diverter, adds m Hall element；M winding is drawn m wire, every pair of wire are respectively connecting to control circuit, control
Circuit according to the position signalling of Hall element perception, to different winding inputs to power-off, commutate, power.
The armature manufacture method of a kind of New-type electric machine the most according to claim 1, it is characterised in that: as the excitation of stator
It is integer around being assembled with 3n(n and is more than 3) iron core, Exciting Windings for Transverse Differential Protection iron core is numbered with arbitrary iron core for starting point, three-phase alternating current
X phase around (1,2), (4,5) ..., (3n, 3n+1) two equidirectional windings of iron core；The Y phase of three-phase alternating current around (2,
3), (5,6) ..., (3n+1,3n+2) two equidirectional windings of iron core；The Z phase of three-phase alternating current around (3,4), (6,
7) ..., (3n+2,3n+3) two equidirectional windings of iron core, adding m(m on circle ring iron core is integer and more than or equal to 3 n)
Individual copper ring (copper ring plane is vertical with the tangent line of turning circumference).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610811376.XA CN106230206A (en) | 2016-09-09 | 2016-09-09 | A kind of armature manufacture method of New-type electric machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610811376.XA CN106230206A (en) | 2016-09-09 | 2016-09-09 | A kind of armature manufacture method of New-type electric machine |
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| CN106230206A true CN106230206A (en) | 2016-12-14 |
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| CN201610811376.XA Pending CN106230206A (en) | 2016-09-09 | 2016-09-09 | A kind of armature manufacture method of New-type electric machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114189089A (en) * | 2021-12-28 | 2022-03-15 | 本溪钢铁（集团）矿业有限责任公司 | Method for preventing electric shovel motor brush spark grade from being too high |
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| US5955810A (en) * | 1997-05-26 | 1999-09-21 | Denso Corporation | Alternator for vehicle |
| CN102124628B (en) * | 2009-09-11 | 2013-03-06 | 配天(安徽)电子技术有限公司 | Three-phase brushless permanent magnet direct current motor provided with large teeth and small teeth structure and assembling method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114189089A (en) * | 2021-12-28 | 2022-03-15 | 本溪钢铁（集团）矿业有限责任公司 | Method for preventing electric shovel motor brush spark grade from being too high |
| CN114189089B (en) * | 2021-12-28 | 2023-08-01 | 本溪钢铁（集团）矿业有限责任公司 | Method for preventing electric shovel motor brush spark from being over-rated |
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Application publication date: 20161214 |