CN110518773A - A kind of separately excited DC machine - Google Patents
A kind of separately excited DC machine Download PDFInfo
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- CN110518773A CN110518773A CN201810497642.5A CN201810497642A CN110518773A CN 110518773 A CN110518773 A CN 110518773A CN 201810497642 A CN201810497642 A CN 201810497642A CN 110518773 A CN110518773 A CN 110518773A
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- brush
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
- H02K23/12—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having excitation produced by current sources independent of the armature circuit
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Abstract
The present invention provides a kind of separately excited DC machines.Separately excited DC machine provided by the invention is connected with external dc electricity source device, has specified input current characterized by comprising casing；M is to brush；Stator, comprising m corresponding to brush with m to main pole and an excitation winding portion, and rotor, it is arranged in stator, include multiple armature winding, wherein, contain n excitation winding unit in excitation winding portion, the n excitation winding unit is corresponding to brush difference with n, every a pair of brush contains that S extremely corresponds to brush and N extremely corresponds to brush, each S extremely corresponds to brush and a pole of external dc electricity source device is electrically connected, N extremely corresponds to brush and another pole of external dc electricity source device is electrically connected, one end of each insulated electric conductor item and a pole of external dc electricity source device are electrically connected, the other end of each insulated electric conductor item and another pole of external dc electricity source device are electrically connected, m, n is the positive integer not less than 2.
Description
Technical field
The invention belongs to direct current generator field, in particular to a kind of separately excited DC machine.
Background technique
Respectively by two power supply power supplies, exciting current is provided separately the excitation winding and armature winding of separately excited DC machine,
It is unrelated with armature supply.Thus separately excited DC machine is easy to control, speed regulation, positive and negative rotation and energy feedback easy to accomplish.It answers extensively
For electri forklift, electric car, electric sightseeing vehicle, electrically propelled traction vehicle, main shaft of large machine tools transmission system and ship etc..
Direct current generator is usually to be used together to constitute DC motor drive with chopper, in order to guarantee that system is reliable
Property, the maximum output current of chopper is usually 2 to 3 times of rated current of motor.Chopper is to modulate skill using pulse width
The turn-on and turn-off of art control power switch tube change output voltage and export electric current, the size of output current ripple with
The switching frequency of power switch tube is inversely proportional, the size of the switching frequency of power switch tube and switching loss (or temperature rise, failure
Rate) it is directly proportional.And motor output torque ripple is square direct ratio with current ripples.Therefore, in order to reduce motor output torque
Ripple reduces current ripples, it is necessary to improve switching frequency；And in order to reduce switching loss, and switching frequency must be reduced.
This contradictory relation affects the development of high-power high-performance direct current motor speed control device.Cause its numerically-controlled machine tool etc. to turn
It is difficult to apply on the exigent device of square ripple.
Applied to the DC motor with separate excitation in national defence equipment, since stealthy demand is especially quick to vibration and electromagnetic interference
Sense, that is to say, that the ripple of ripple and electric current to motor output torque requires particularly severe.And currently, being applied to high-power state
The traditional separately excited DC machine of anti-electrical equipment has been difficult to cope with the increasingly flourishing investigative technique of technology.
For these reasons, DC motor with separate excitation development receives restriction and influence, affects economic construction and national defence
Construction.
Summary of the invention
The present invention is to carry out in order to solve the above problem, provides a kind of separately excited DC machine.
To achieve the goals above, present invention employs following technical proposals:
The present invention provides a kind of separately excited DC machines, are connected with the first continuous-current plant and the second continuous-current plant
It connects, there is specified input current characterized by comprising casing；M is fixed in casing brush, according to specified input electricity
Stream is arranged；Stator is arranged in casing, comprising m corresponding to brush with m to main pole and an excitation winding；
And rotor, it is arranged in stator, includes the multiple armature winding connected using lap winding mode, wherein every a pair of main pole
Containing S polarity main pole and N polarity main pole, every a pair of brush contains the extremely corresponding electricity of a S corresponding with S polarity main pole
Brush and a N corresponding with N polarity main pole extremely correspond to brush, and n excitation winding unit is contained in excitation winding portion, each
Excitation winding unit is encouraged in m to being respectively prepared in main pole by the insulated metal wire that is made of the metal wire for being enclosed with insulating layer
Magnetic coil and formed, the insulated metal wire in each excitation winding unit have one end and the other end, m pairs of main pole contains pre-
Fixed a pair of of main pole is as a pair of predetermined main pole, and one end of insulated metal wire is from the S polarity master in a pair of predetermined main pole
Magnetic pole or N polarity main pole are drawn, and all one end of each insulated metal wire correspond to same pole in a pair of predetermined main pole
The main pole of property；Each S extremely corresponds to brush or each N extremely corresponds to brush and is respectively equipped with terminals as m the first external cablings
It holds for the electrical connection of a pole of the first continuous-current plant, remaining brush not being electrically connected with the first external terminal to divide
Not She You terminals be used to be electrically connected with another pole of the first continuous-current plant as m the second external terminals, it is each
All one end of insulated electric conductor item are used to extremely electrically connect with the one of the second continuous-current plant as n third external terminal
It connects, all other ends of each insulated electric conductor article are as n the 4th external terminals for another with the second continuous-current plant
The electrical connection of one pole, m are the positive integer not less than 2, and n is the positive integer not less than 2.
The present invention provides a kind of separately excited DC machines, fill with external the first continuous-current plant and the second DC power supply
It sets and is connected, there is specified input current characterized by comprising casing；M is fixed in casing brush；Stator, setting
In casing, comprising m corresponding to brush with m to main pole and an excitation winding portion and rotor, it is arranged in stator
It is interior, it include multiple armature winding, wherein n excitation winding unit is contained in excitation winding portion, and excitation winding unit is by being respectively set
Total 2m magnet exciting coil in each main pole connects into, and includes n magnet exciting coil, the magnet exciting coil in each main pole
By the insulated electric conductor item that is made of the strip conductor for being enclosed with insulating layer, coiling is formed respectively in main pole, each excitation around
Insulated electric conductor item in group unit has along the predetermined current direction of magnet exciting coil and the one end distinguished and the other end, every a pair of main
Magnetic pole contains S polarity main pole corresponding with the predetermined current direction in magnet exciting coil coiling direction and magnet exciting coil and N polarity
Main pole, every a pair of brush contain a S corresponding with S polarity main pole and extremely correspond to brush and one and N polarity main pole
Corresponding N extremely corresponds to brush, and each S extremely corresponds to brush or each N extremely corresponds to brush and is respectively equipped with terminals as m first
External terminal is used to be electrically connected with a pole of the first continuous-current plant, not with the electrical connection of the first external terminal its
Remaining brush is respectively equipped with terminals and is used to extremely electrically connect with the another of the first continuous-current plant as m the second external terminals
It connects, all one end of each insulated electric conductor item are as n third external terminal for the pole with the second continuous-current plant
All other ends of electrical connection, each insulated electric conductor article are used to fill with the second DC power supply as n the 4th external terminals
Another pole electrical connection set, m are the positive integer not less than 2, and n is the positive integer not less than 2.
Separately excited DC machine provided by the invention can also have such technical characteristic, further includes: terminal box is fixed on
On casing, wherein m the first external terminals, m the second external terminals, n third external terminal and n the 4th
External terminal is arranged in terminal box.
Separately excited DC machine provided by the invention can also have such technical characteristic: where connect outside one first
Line end and corresponding second external terminal constitute an armature wiring units, a third external terminal and opposite
The 4th external terminal answered constitutes an excitation wiring units.
Separately excited DC machine provided by the invention can also have such technical characteristic: where m armature wiring units
Electrical connection corresponding at least one first continuous-current plant, n excitation wiring units and at least one second DC power supply
The corresponding electrical connection of device.
Separately excited DC machine provided by the invention can also have such technical characteristic: where insulated electric conductor item is paint
Any one in envelope curve and insulated copper conducting bar.
Separately excited DC machine provided by the invention can also have such technical characteristic: where the m in all main poles
The coiling direction of a magnet exciting coil and the number of turns are all identical.
Separately excited DC machine provided by the invention can also have such technical characteristic: where in each excitation winding
In unit, the connection relationship of 2m magnet exciting coil be series, parallel and be series-parallel in any one, each excitation winding unit
In 2m magnet exciting coil connection relationship it is identical.
Separately excited DC machine provided by the invention can also have such technical characteristic: where multiple armature winding
Bind mode is any one in single folded, overlapping and complex wave.
Separately excited DC machine provided by the invention can also have such technical characteristic: where the first DC power supply dress
Setting with the second continuous-current plant is respectively any one in chopper, battery and rectifier power source.
The action and effect of invention
The separately excited DC machine provided according to the present invention, because n excitation winding unit is contained in excitation winding portion,
When each excitation winding unit is independently-powered by an external dc electricity source device, as long as each external dc electricity source device undertakes
The operating current of one excitation winding unit, only n/mono- of motor energization current.
It is connected to an armature winding branch between a pair of of brush, adjacent two brushes of each pair of brush and left and right connect respectively
An armature winding branch has been connect, so, each first external terminal and corresponding second external terminal are by an outside
When continuous-current plant is independently-powered, as long as each external dc electricity source device undertakes the work of most 2 armature winding branches
Electric current, only m/mono- of armature electric current.
It is independently-powered by m external dc electricity source device as long as m is sufficiently large with the increase of armature electric current, each
The output electric current of external dc electricity source device can be small to not needing using power module or Current Sharing Technology, to reduce
Cost.
Moreover, when the brush, excitation winding unit, connecting line in external dc electricity source device and motor break down, only
It needs guilty culprit partly shielding effect, other normal segments can still work, and improve the reliability and safety of system
Property.
Each external dc electricity source device can use different control, so that the waveform of each output electric current is inconsistent,
The ripple and ripple factor of output the sum of electric current of all external dc electricity source devices are reduced, that is, motor energization current and
The ripple and ripple factor of armature supply all reduce, to reduce the ripple and ripple factor of the output torque of motor, in turn
The ripple and ripple factor for reducing motor output speeds, reduce electromagnetic interference, vibration and the noise of motor.
Relative to only there are four traditional separately excited DC machine of terminals, the present invention has more terminals, Mei Gejie
The electric current of line end only has m/mono- of armature electric current or n/mono- of motor energization current, motor and external dc power
Connecting line and connector between device, the requirement to contact resistance and insulation is lower, reduces production cost, helps to improve
The reliability and safety of system.
In addition, the present invention can break the external monopolization for power module, controller and high-performance electric driving device and
Separately excited DC machine is not only applied to electric car, electrocar, railcar, sightseeing bus, lorry, ship by block
Etc. big load electrical equipment, but also the performance of electrical equipment can be improved, is applied to the height such as numerically-controlled machine tool and submarine performance electricity
Dynamic equipment, realizes the production domesticization of high-performance Vidacare corp.
In short, the present invention have reasonable in design, simple, reliability and it is highly-safe, can be applied to it is high-power and high
The separately excited DC machine driving device and electrical equipment of performance.
Detailed description of the invention
Fig. 1 is the longitudinal profile structure schematic of the separately excited DC machine in the embodiment of the present invention；
Fig. 2 is the horizontal cross-section structure diagram of the separately excited DC machine in the embodiment of the present invention；
Fig. 3 is the armature winding of separately excited DC machine of the invention and the circuit connection diagram of excitation winding；
Fig. 4 is that the armature winding of the separately excited DC machine in the embodiment of the present invention and the circuit connection of excitation winding are illustrated
Figure；
Fig. 5, which is that the armature winding list of the separately excited DC machine in the embodiment of the present invention is folded, is coupled expanded schematic diagram；
Fig. 6 is the circuit connection diagram of traditional separately excited DC machine；
Fig. 7 is input current waveform figure of the separately excited DC machine three in the embodiment of the present invention to brush；
Fig. 8 is the input current waveform figure of three excitation winding units of separately excited DC machine in the embodiment of the present invention；
Fig. 9 is the electric current of the separately excited DC machine in the embodiment of the present invention and the armature supply of traditional separately excited DC machine
Compare figure；
Figure 10 is the electric current of the separately excited DC machine in the embodiment of the present invention and the excitation electricity of traditional separately excited DC machine
Stream compares figure；And
Figure 11 is the torque of the separately excited DC machine in the embodiment of the present invention and the torque ratio of traditional separately excited DC machine
Compared with figure.
Specific embodiment
Illustrate a specific embodiment of the invention below in conjunction with attached drawing.
Fig. 1 is the longitudinal profile structure schematic of the separately excited DC machine in the embodiment of the present invention；
Fig. 2 is the horizontal cross-section structure diagram of the separately excited DC machine in the embodiment of the present invention；Fig. 3 is of the invention he
Encourage the armature winding of direct current generator and the circuit connection diagram of excitation winding；
Fig. 4 is that the armature winding of the separately excited DC machine in the embodiment of the present invention and the circuit connection of excitation winding are illustrated
Figure；Fig. 5, which is that the armature winding list of the separately excited DC machine in the embodiment of the present invention is folded, is coupled expanded schematic diagram.
In the present embodiment, separately excited DC machine 100 and the first external continuous-current plant and the second DC power supply fill
It sets (not shown) to be connected, separately excited DC machine has specified armature supply and rated exciting current.
As depicted in figs. 1 and 2, separately excited DC machine 100 includes casing 11, stator 12, brush 13, rotor 14 and wiring
Box (is not shown).As shown in figure 3, setting m for the logarithm of brush according to the value of Rated motor armature supply.Such as Fig. 4
With shown in Fig. 5, m is set as 3 in the present embodiment.When the maximum output current that the contact of power switch tube is born is I1, multiphase friendship
The maximum line current of galvanic electricity machine is Imax, brush logarithm m meets following conditions: m > Imax÷I1。
Stator 12 is arranged in casing 11, includes 3 pairs of totally 6 main poles 121 and excitation winding portions 122；Each
It include 3 magnet exciting coils in main pole 121, each magnet exciting coil passes through the insulated electric conductor that is made of the conductor for being enclosed with insulating layer
Coiling forms respectively in main pole 121, and insulated electric conductor item is any one in enameled wire and insulated copper conducting bar, the present embodiment
In, insulated electric conductor item is enameled wire.In the present embodiment, the coiling direction of 3 magnet exciting coils in each main pole 121 and the number of turns
It is identical.
As shown in Fig. 2, extracted respectively in each main pole 121 magnet exciting coil totally 6 magnet exciting coils connect into as
An excitation winding unit 1221 shown in Fig. 4, excitation winding portion 122 contain 3 excitation winding units 1221, each excitation around
Insulated electric conductor item has according to the predetermined current direction of magnet exciting coil and the one end distinguished and the other end in group unit 1221, each
S polarity main pole 1211 corresponding with the predetermined current direction in magnet exciting coil coiling direction and magnet exciting coil is contained to main pole
With N polarity main pole 1212.In the present embodiment, the coiling direction of 3 magnet exciting coils in each main pole 121 and the number of turns phase
Together.
In each excitation winding unit 1221, during the connection relationship of 6 magnet exciting coils is series, parallel or is series-parallel
Any one, and the connection relationship of 6 magnet exciting coils in each excitation winding unit 1221 is identical, in the present embodiment, 6
The connection relationship of magnet exciting coil is series connection.
As depicted in figs. 1 and 2,3 pairs totally 6 brushes 13 be arranged in casing 11, every a pair of brush 13 contains one and the pole S
The corresponding S of property main pole 1211 extremely corresponds to brush 131 and one extremely corresponds to brush with the corresponding N of N polarity main pole 1212
132.Brush 13 is any one in narrow brush or wide brush, and the present embodiment center brush 13 is narrow brush.
As shown in Fig. 2, rotor 14 is arranged in stator, as shown in figure 5, rotor 14 includes multiple armature winding 141, it is multiple
The bind mode of armature winding 141 is any one in single folded, overlapping and complex wave.In the present embodiment, multiple armature winding
Bind mode is single folded.
Terminal box is fixed on casing 11, as shown in figure 4, connecing outside 3 the first external terminals 1511,3 second
1512,3 third external terminals 1513 of line end and 3 the 4th external terminals 1514 are arranged in terminal box.One
First external terminal 1511 and corresponding second external terminal 1512 constitute an armature wiring units.One
Three external terminals 1513 and corresponding 4th external terminal 1514 constitute an excitation wiring units.3 armatures
Wiring units electrical connection corresponding at least one first continuous-current plant, 3 excitation wiring units and at least one second
The corresponding electrical connection of continuous-current plant, continuous-current plant are one of chopper, battery and rectifier power source.The present embodiment
In, 3 armature wiring units are corresponded with 3 chopper supply devices and are electrically connected, and 3 excitation wiring units are cut with 3
Wave device power supply device corresponds electrical connection, and the switching frequency of 3 choppers is all 1 kHz.
As shown in figure 4,3 brushes in each pair of brush corresponding to identical polar main pole are as 3 the first external cablings
End 1511 with a pole (such as anode of continuous-current plant) for the first continuous-current plant for being electrically connected, in each pair of brush
Another 3 brushes be used for and another pole of the first continuous-current plant (such as direct current as 3 the second external terminals 1512
The anode of source device) electrical connection.3 one end of each excitation winding unit 1221 are as 3 third external terminals 1513
For a pole (such as anode of the continuous-current plant) electrical connection with the second continuous-current plant, each excitation winding unit
1221 3 other ends are used for (such as straight with another pole of the second continuous-current plant as 3 the 4th external terminals 1514
The cathode of galvanic electricity source device) electrical connection.
Fig. 6 is the circuit connection diagram of traditional separately excited DC machine；Fig. 7 is the separate excitation direct current in the embodiment of the present invention
Input current waveform figure of the motor three to brush；Fig. 8 is three excitation winding lists of separately excited DC machine in the embodiment of the present invention
The input current waveform figure of member；Fig. 9 is the electric current and traditional separate excitation direct current of the separately excited DC machine in the embodiment of the present invention
The armature supply of machine compares figure；Figure 10 is the electric current and traditional separate excitation direct current of the separately excited DC machine in the embodiment of the present invention
The exciting current of machine compares figure；And Figure 11 is straight for the torque of the separately excited DC machine in the embodiment of the present invention and traditional separate excitation
Figure is compared in the torque of galvanic electricity machine.
Fig. 6 is the circuit connection diagram of traditional separately excited DC machine, and separately excited DC machine only has 4 terminals, connects
The electrical connection corresponding with 2 chopper supply devices of line unit, the switching frequency of chopper is all 1 kHz.
At steady state, current ripples are the difference of maximum value and minimum value, ripple factor be maximum value and minimum value it
The percentage of difference and average value.
As shown in fig. 7, the electric current line of separately excited DC machine three in the embodiment of the present invention to brush A1B1, A2B2 and A3B3
Wave is equal to 99.31-87.33=11.99 amperes, and average value is equal to 93.32 amperes, and ripple factor is equal to 11.99/
93.32 × 100%=12.84%.
As shown in figure 8, three excitation winding units of separately excited DC machine 1221,1222 and 1223 in the embodiment of the present invention
Current ripples be equal to 61.97-61.37=0.60 amperes, average value is equal to 61.67 amperes, and ripple factor is equal to
0.60/61.67 × 100%=0.97%.
As shown in figure 9, at steady state, the armature supply of the separately excited DC machine in the embodiment of the present invention is equal to Fig. 7
In three couples of brushes A1B1, A2B2 and A3B3 the sum of electric current, the ripple of armature supply is 281.95-277.98=3.97 amperes,
Average value is equal to 279.97 amperes, and ripple factor is equal to 3.97/279.97 × 100%=1.42%.The armature of conventional motors
Current ripples are equal to 297.94-261.98=35.96 amperes, and average value is equal to 279.97 amperes, and ripple factor is equal to 35.96/
279.97 × 100%=12.84%.Although the armature supply of separately excited DC machine and conventional motors in the embodiment of the present invention is flat
Mean value is identical, but all only tradition is electric for the armature supply ripple and ripple factor of the separately excited DC machine in the embodiment of the present invention
/ 9th of machine.
As shown in Figure 10, at steady state, the exciting current of the separately excited DC machine in the embodiment of the present invention is equal to Fig. 8
In three excitation winding units 1221,1222 and 1223 the sum of electric current, the ripple of exciting current is 185.10-184.90=
0.2 ampere, average value is equal to 185.0 amperes, and ripple factor is equal to 0.2/185 × 100%=0.11%.Conventional motors are encouraged
Magnetic current ripples are equal to 185.9-184.1=1.8 amperes, and average value is equal to 185.0 amperes, and ripple factor is equal to 1.8/185.0
× 100%=0.97%.Although the exciting current average value phase of separately excited DC machine and conventional motors in the embodiment of the present invention
Together, the exciting current ripple and ripple factor of the separately excited DC machine but in the embodiment of the present invention all only have the nine of conventional motors
/ mono-.
It is known that the electromagnetic torque and the equation of motion of separately excited DC machine are as follows
Wherein, TemFor electromagnetic torque；CTFor torque constant；Φ is the magnetic flux of main field；LafFor excitation winding portion and armature
The mutual inductance of winding is constant；IfFor excitation winding portion electric current；IaFor armature winding electric current；TloadFor load torque；J is load
Rotary inertia is constant；Ω is output angular velocity；In formula (1), electromagnetic torque TemWith armature supply IaWith the magnetic flux of main field
Φ product is directly proportional, and the main field of direct current generator is motivated by the excitation winding portion of chopper, according to formula (1) it is found that
Electromagnetic torque TemWith armature supply IaWith excitation winding portion electric current IfProduct it is directly proportional, excitation winding portion electric current IfRipple system
Several and armature winding electric current IaRipple factor will lead to electromagnetic torque TemGenerate bigger ripple factor, output angular velocity Ω
Pulsation or ripple are bigger, and the performance of driving device and electrical equipment is worse.
In the present embodiment, LafIt is taken as 1, at steady state, as shown in figure 11, the separate excitation direct current in the embodiment of the present invention
Motor torque ripple be equal to 52188.25-51398.38=789.87N.m, average value be equal to 51793.56N.m, ripple system
Number is equal to 1.53%.The torque ripple of traditional separately excited DC machine is equal to 55386.15-48229.93=7156.21N.m,
Average value is equal to 51798.89N.m, and ripple factor is equal to 13.82%.
That is, the separately excited DC machine in the present embodiment is although the average of torque with conventional motors is essentially identical,
But the ripple and ripple factor of the separately excited DC machine torque in the present embodiment all only have 1/9th of conventional motors, reduce
The ripple and ripple factor of the output torque of motor, and then reduce the ripple and ripple factor of motor output speeds, it is final real
Electromagnetic interference, vibration and the noise for now reducing motor, improve the purpose of the performance of series DC machine and electrical equipment.
The action and effect of embodiment
According to separately excited DC machine provided in this embodiment, because being connected to an armature winding branch between a pair of of brush
Road, adjacent two brushes of each pair of brush and left and right have been separately connected an armature winding branch, so, it is connect outside each first
When line end and corresponding second external terminal independently-powered by an external dc electricity source device, each external dc power dress
As long as setting the operating current for undertaking most 2 armature winding branches, only m/mono- of armature electric current.With motor electricity
The increase of pivot electric current, it is independently-powered by m external dc electricity source device as long as m is sufficiently large, each external dc electricity source device
Output electric current can it is small to do not need use power module or Current Sharing Technology, to reduce cost.
Moreover, the armature winding, brush, excitation winding unit, connecting line in external dc electricity source device and motor occur
When failure, it is only necessary to faulty component is shielded, other normal segments can still work, improve system reliability and
Safety.
Each external dc electricity source device can use different control, so that the waveform of each output electric current is inconsistent,
The ripple and ripple factor of output the sum of electric current of all external dc electricity source devices are reduced, that is, motor energization current and
The ripple and ripple factor of armature supply all reduce, to reduce the ripple and ripple factor of the output torque of motor, in turn
The ripple and ripple factor for reducing motor output speeds, reduce electromagnetic interference, vibration and the noise of motor.
Relative to only there are four traditional separately excited DC machine of terminals, the present embodiment has more terminals, each
The electric current of terminals only has the one third of armature electric current or the one third of motor energization current, motor and external dc
Connecting line and connector between power supply device, the requirement to contact resistance and insulation is lower, reduces production cost, facilitates
The reliability and safety of raising system.
In addition, the present invention can break the external monopolization for power module, controller and high-performance electric driving device and
Block, so that the invention can be applied not only to electric car, electrocar, railcar, sightseeing bus, lorry, ship
Etc. big load electrical equipment, but also the performance of electrical equipment can be improved, is applied to the height such as numerically-controlled machine tool and submarine performance electricity
Dynamic equipment, realizes the production domesticization of high-performance Vidacare corp.
In short, the present embodiment have reasonable in design, simple, reliability and it is highly-safe, can be applied to it is high-power and
High-performance Vidacare corp and electrical equipment.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of separately excited DC machine is connected with the first continuous-current plant and the second continuous-current plant, have specified defeated
Enter electric current characterized by comprising
Casing；
M is fixed in the casing brush, is arranged according to the specified input current；
Stator is arranged in the casing, comprising m corresponding to the brush with m to main pole and an excitation winding；
And
Rotor is arranged in the stator, comprising the multiple armature winding connected using lap winding mode,
Wherein, every a pair main pole contains S polarity main pole and N polarity main pole,
Every a pair brush contains a S corresponding with S polarity main pole and extremely corresponds to brush and one and N polarity main pole
Corresponding N extremely corresponds to brush,
N excitation winding unit is contained in the excitation winding portion, each described excitation winding unit passes through by being enclosed with insulation
The insulated metal wire that the metal wire of layer is constituted is formed in the m to magnet exciting coil is respectively prepared in main pole,
The insulated metal wire in each excitation winding unit has one end and the other end,
Described m pairs of the main pole contains scheduled the pair of main pole and is used as a pair of predetermined main pole,
Described one end of the insulated metal wire is from the S polarity main pole or the main magnetic of N polarity in the pair of predetermined main pole
Pole is drawn,
All described one end of each insulated metal wire correspond to the pair of predetermined main pole in identical polar it is described
Main pole；
Each S extremely corresponds to brush or each N extremely corresponds to brush and is respectively equipped with terminals as m the first external cablings
It holds for being electrically connected with a pole of the first continuous-current plant,
Terminals are not respectively equipped with as m the second external terminals with remaining brush of the first external terminal electrical connection to use
It is electrically connected in another pole of first continuous-current plant,
All described one end of each insulated electric conductor item are used for and second direct current as n third external terminal
A pole for source device is electrically connected,
All other ends of each insulated electric conductor article are used for and second direct current as n the 4th external terminals
Another pole electrical connection of power supply device,
The m is the positive integer not less than 2,
The n is the positive integer not less than 2.
2. a kind of separately excited DC machine is connected with external the first continuous-current plant and the second continuous-current plant, has
Specified input current characterized by comprising
Casing；
M is fixed in the casing brush；
Stator is arranged in the casing, comprising m corresponding to the brush with m to main pole and an excitation winding
Portion, and
Rotor is arranged in the stator, includes multiple armature winding,
Wherein, n excitation winding unit is contained in the excitation winding portion, and the excitation winding unit is by being separately positioned on each
Total 2m magnet exciting coil in the main pole connects into,
Comprising the n magnet exciting coils in each main pole, which is led by the bar shaped by being enclosed with insulating layer
Coiling forms the insulated electric conductor item that body is constituted respectively in the main pole,
The insulated electric conductor item in each excitation winding unit have along the predetermined current direction of the magnet exciting coil and
One end of differentiation and the other end,
Every a pair main pole contains the predetermined current direction phase with magnet exciting coil coiling direction and the magnet exciting coil
Corresponding S polarity main pole and N polarity main pole, every a pair brush contain the pole S corresponding with S polarity main pole
Corresponding brush and a N corresponding with N polarity main pole extremely correspond to brush,
Each S extremely corresponds to brush or each N extremely corresponds to brush and is respectively equipped with terminals as m the first external cablings
It holds for being electrically connected with a pole of the first continuous-current plant,
Terminals are not respectively equipped with as m the second external terminals with remaining brush of the first external terminal electrical connection to use
It is electrically connected in another pole of first continuous-current plant,
All described one end of each insulated electric conductor item are used for and second direct current as n third external terminal
A pole for source device is electrically connected,
All other ends of each insulated electric conductor article are used for and second direct current as n the 4th external terminals
Another pole electrical connection of power supply device,
The m is the positive integer not less than 2,
The n is the positive integer not less than 2.
3. separately excited DC machine according to claim 1 or 2, which is characterized in that further include:
Terminal box is fixed on the housing,
Wherein, m first external terminals, m second external terminals, the n third external terminals with
And n the 4th external terminals are arranged in the terminal box.
4. separately excited DC machine according to claim 2, it is characterised in that:
Wherein, first external terminal and corresponding second external terminal constitute an armature and connect
Line unit,
One third external terminal and corresponding 4th external terminal constitute an excitation wiring list
Member.
5. separately excited DC machine according to claim 4, it is characterised in that:
Wherein, m armature wiring units electrical connection corresponding with the first continuous-current plant described at least one,
The electrical connection corresponding with the second continuous-current plant described at least one of the n excitation wiring units.
6. separately excited DC machine according to claim 2, it is characterised in that:
Wherein, the insulated electric conductor item is any one in enameled wire or insulated copper conducting bar.
7. separately excited DC machine according to claim 2, it is characterised in that:
Wherein, the coiling direction of n magnet exciting coil in all main poles is identical with the number of turns.
8. separately excited DC machine according to claim 2, it is characterised in that:
Wherein, in each excitation winding unit, the connection relationship of the 2m magnet exciting coils is series, parallel and goes here and there simultaneously
Any one in connection,
The connection relationship of multiple magnet exciting coils in each excitation winding unit is identical.
9. separately excited DC machine according to claim 2, it is characterised in that:
Wherein, the bind mode of multiple armature winding is any one in single folded, overlapping and complex wave.
10. separately excited DC machine according to claim 2, it is characterised in that:
Wherein, first continuous-current plant and second continuous-current plant are respectively chopper, battery and rectified current
Any one in source.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810497642.5A CN110518773B (en) | 2018-05-22 | 2018-05-22 | Separately excited direct current motor |
| PCT/CN2018/114621 WO2019223253A1 (en) | 2018-05-22 | 2018-11-08 | Direct current motor |
| US17/052,534 US11211855B2 (en) | 2018-05-22 | 2018-11-08 | Direct current motor |
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|---|---|---|---|
| CN201810497642.5A CN110518773B (en) | 2018-05-22 | 2018-05-22 | Separately excited direct current motor |
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| CN110518773A true CN110518773A (en) | 2019-11-29 |
| CN110518773B CN110518773B (en) | 2020-12-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111277099A (en) * | 2018-10-10 | 2020-06-12 | 上海理工大学 | Separately excited DC motor |
| US11211855B2 (en) | 2018-05-22 | 2021-12-28 | University Of Shanghai For Science And Technology | Direct current motor |
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| US7239063B2 (en) * | 2003-01-23 | 2007-07-03 | Asmo Co., Ltd. | Motor having supply brushes |
| JP2010098930A (en) * | 2008-09-22 | 2010-04-30 | Asmo Co Ltd | Brushed hybrid excitation motor and method of driving the same |
| CN203933177U (en) * | 2014-06-24 | 2014-11-05 | 溧阳市宏达电机有限公司 | A kind of direct-current series-excited variable-blade motor |
| CN106602947A (en) * | 2016-12-28 | 2017-04-26 | 上海理工大学 | Electric driving unit, chopper circuit, DC motor and electric equipment |
| CN107086831A (en) * | 2017-05-03 | 2017-08-22 | 上海理工大学 | Direct current drive drive device and electrical equipment |
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2018
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|---|---|---|---|---|
| US7239063B2 (en) * | 2003-01-23 | 2007-07-03 | Asmo Co., Ltd. | Motor having supply brushes |
| JP2010098930A (en) * | 2008-09-22 | 2010-04-30 | Asmo Co Ltd | Brushed hybrid excitation motor and method of driving the same |
| CN203933177U (en) * | 2014-06-24 | 2014-11-05 | 溧阳市宏达电机有限公司 | A kind of direct-current series-excited variable-blade motor |
| CN106602947A (en) * | 2016-12-28 | 2017-04-26 | 上海理工大学 | Electric driving unit, chopper circuit, DC motor and electric equipment |
| CN107086831A (en) * | 2017-05-03 | 2017-08-22 | 上海理工大学 | Direct current drive drive device and electrical equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11211855B2 (en) | 2018-05-22 | 2021-12-28 | University Of Shanghai For Science And Technology | Direct current motor |
| CN111277099A (en) * | 2018-10-10 | 2020-06-12 | 上海理工大学 | Separately excited DC motor |
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| Publication number | Publication date |
|---|---|
| CN110518773B (en) | 2020-12-25 |
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