Hybrid excitation generator
A hybrid excitation and generator technology, used in synchronous motors with static armatures and rotating magnets, synchronous machine parts, and magnetic circuit static parts, etc. Use requirements, etc.
Active Publication Date: 2015-03-25
ZHEJIANG TOP MOTORING TECH
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AI Technical Summary
Problems solved by technology
The permanent magnet rotor generator can be designed as a flat structure, which facilitates the installation and size control of the range extender system. However, the generator output current or voltage control of this structure requires a special secondary power supply. Piezoelectric circuits need to use expensive power switching devices and high-power filter inductors
In this way, when the power of the range extender is large, the controller that is matched with the generator using the permanent magnet excitation rotor is not only costly but also difficult to meet the use requirements
The claw-pole generator is used and its cost is low, but its power density is low and its size is large, which cannot meet the requirements of the range extender for vehicles
Method used
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Embodiment 1
[0033] A hybrid excitation generator includes a casing 1, a stator is fixedly installed in the casing 1, a rotor is arranged at the axial center of the stator, and a control circuit is installed in the casing 1; the stator includes an armature core 2 and an electric The armature winding 3 on the armature core 2, the rotor includes a magnetic shaft 4 located in the center of the shaft and an excitation winding sleeved on the magnetic shaft 4, the excitation winding is arranged between the first magnetic pole 6 and the tail magnetic pole 5; the armature The projection of the iron core 2 on the magnetic conduction axis 4 is located between the first magnetic pole 6 and the tail magnetic pole 5 . The magnetic pole 4 is fixedly connected with magnetic poles, and the magnetic poles include the first magnetic pole 6 and the tail magnetic pole 5 which are respectively located at the front and rear ends of the magnetic conduction shaft 4, and a shaft Gap; the shaft gap is 6~10 times of...
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The invention provides a hybrid excitation generator comprising a shell. A stator is fixedly installed in the shell. A rotor is arranged at the axis of the stator. The shell is also provided with a control circuit. The stator comprises an armature core and an armature winding arranged on the armature core in a sleeving mode. The rotor comprises a magnetic conductive shaft and an excitation winding, wherein the magnetic conductive shaft is located at axis center, and the excitation winding is arranged on the magnetic conductive shaft in a sleeving mode. Magnetic poles are fixedly connected to the magnetic conductive shaft, wherein the magnetic poles comprise the head magnetic pole and the tail magnetic pole, wherein the head magnetic pole and the tail magnetic pole are located at the front end and the rear end of the magnetic conductive shaft respectively. An axial interval is kept between the magnetic pole ends of the circumferential outer rings of the head magnetic pole and the tail magnetic pole. A plurality of steel magnets are evenly and fixedly arranged on the circumferences of the magnetic poles. A radial interval is kept between the outer surface of each steel magnet and the surface of the outer ring of each magnetic pole. The outer surface of each steel magnetic is closer to the magnetic conductive shaft than the surface of the outer ring of each magnetic pole. The hybrid excitation generator solves existing technical problems and is small in size and high in efficiency.
Description
technical field [0001] The invention relates to a generator, in particular to a hybrid excitation generator, which belongs to the field of motor manufacturing. Background technique [0002] After the electric drive vehicle is matched with the range extender, it can solve the emergency charging of the electric vehicle or realize the function of series plug-in hybrid drive. However, electric vehicles have a compact structure and have strict requirements on the axial size of the generator; at the same time, automotive products have strict control over the cost of accessories. [0003] At present, the generators for vehicle-mounted range extenders on the market mainly adopt two schemes, and most of them adopt the permanent magnet rotor scheme, and a few adopt the claw pole generator scheme. The permanent magnet rotor generator can be designed as a flat structure, which facilitates the installation and size control of the range extender system. However, the generator output curr...
Claims
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IPC IPC(8): H02K1/22H02K1/16
CPCH02K21/02H02K21/14
Inventor 袁沛海
Owner ZHEJIANG TOP MOTORING TECH