According to their frequency of use of the environment and the use
of different forms are different. Characterized by different forms
of the motor are not the same. Currently electric car motors widely
used permanent magnet DC motors. The so-called permanent magnet
motor, motor coil refers to the use of permanent magnet excitation,
do not use the coilexcitation approach. This eliminates the
excitation coil power consumption during operation and improve the
electrical electromechanical conversion efficiency, whichlimited
the use of in-vehicle electric vehicles in terms of energy, can
reduce driving current,prolonged continuation mileage. Electric car
motors in accordance with the power to formthe motor can be divided
into brush motors and brushless motors into two
categories;mechanical structure according to the motor assembly
points, generally divided into"teeth" (motor speed is high, need to
go through a gear deceleration) and "no teeth"(motor torque output
without any slowdown) two categories.
1 permanent magnet DC motor:
The stator poles, a rotor, a brush, the housing and other
Stator poles using permanent magnet (permanent magnet), ferrite,
alnico, NdFeBmaterial. Its structure can be divided into a
cylindrical form and shoe type and other types.
Rotor commonly used silicon layers made of enameled wire wound
rotor core betweentwo slots (three slots that has three windings),
which the joints are welded to the sheet metal of the commutator.
Brush is connected to the conductive member and the rotor winding
power, with twoconductive and wear resistant properties. Brushless
permanent magnet motor using a single piece of metal or
metal-graphite brushes, electric graphite brushes.
2 brushless DC motor:
By the permanent magnet rotor, multi-pole stator winding, the
position sensors and other components. Features brushless DC motor
is a brushless, using semiconductor switching devices (such as Hall
elements) to achieve electronic commutation, which uses
electronicswitching devices instead of the traditional contact
commutator and brushes. It has high reliability, no commutation
sparks, mechanical noise is low.
Change of the rotor position by the position sensor, the current
along a certain sequence of commutation of the stator windings
(i.e., for detecting a rotor magnetic pole positionrelative to the
stator windings, and the position sensor generates a signal at a
positiondetermined by the processing to the signal conversion
circuit control power switchingcircuit, according to a certain
logic relationships winding current switching).
3 high-speed permanent magnet brushless motor:
From the stator core, magnet rotor, the sun wheel, gear clutch,
wheel housings and other components.
The motor can be mounted on the lid above the Hall sensors for
There are magnetic position sensors, photoelectric and
electromagnetic three types.
Using magnetic position sensor brushless DC motor, magnetic sensors
(such as Hall elements, magnetic diodes, magnetic Gu diodes,
magnetic resistor or ASIC, etc)mounted on the stator assembly, with
to detect the permanent magnet, the magnetic fieldgenerated when
the rotation of the rotor changes. Electric cars and more use is
the Hall element.
Optical position sensor using brushless DC motor, the stator
assembly is configured by a certain location photoelectric sensors,
equipped with visor on the rotor, the light source isa light
emitting diode or a small light bulb. When the rotor rotates, due
to the light shieldingplate, the photosensitive component in the
stator will be born by the inter-pulse interval of frequencies.
Using magnetic position sensor brushless DC motor, is mounted on
the stator assemblyelectromagnetic sensor components (eg coupling
transformer, proximity switches, LCresonant circuits, etc.), when
the permanent magnet rotor position changes,electromagnetic effects
will make electromagnetic sensor generating a
high-frequencymodulation signal (amplitude variation with the rotor
The operating voltage of the stator winding by the electronic
switching circuit is providedto control the position sensor output.
|ITEM||TYPE||WEIGHT||POWER||QUANTITY||PACKING (QUANTITY/CTN)||CTNS||CTN SIZE(CM)||WEIGHT/CTN||VOLUME|
|4.5KG||24V 10AH||500||4 PCS||125 ctns||30*30*15||20KG||1.6875|
|5KG||20V 10AH||500||4 PCS||125 ctns||45*45*30||24KG||7.59375|