Low-speed and high-torque motor with mixed circulating cooling structure
A technology of cooling structure and mixed circulation, applied in the direction of cooling/ventilation device, magnetic circuit shape/style/structure, electromechanical device, etc., can solve problems such as damage to insulated motors, shortening the service life of permanent magnet motors, and shortening the life of permanent magnet motors , to achieve the effect of improving the output capacity, solving the problem of magnetic steel consumption, and solving the output problem
Inactive Publication Date: 2020-02-04
JIANGSU AEROSPACE POWER ELECTRIC
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Problems solved by technology
When the temperature exceeds the temperature allowed by the insulation, it will cause damage to the insulation and even the motor
Existing permanent magnet motors are difficult to operate in a high temperature environment, and the magnetic force of the magnetic steel sheet fades faster in a higher temperature environment, which will shorten the life of the permanent magnet motor
For permanent magnet motors that operate under high load conditions for a long time, the ambient temperature of the rotor is often high, which will also shorten the service life of the permanent magnet motor
Method used
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[0020] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0021] Such as figure 1 A low-speed high-torque motor with a mixed cycle cooling structure is shown, including a casing 1, a rotor core 4 and a stator core 2 coaxially arranged in the casing 1, and the casing 1 is welded by Q235B steel plate material. The stator core 2 is made of 50W470 silicon steel material, such as figure 2 , 3 As shown, 24 assembly notches 12 are evenly distributed on the outer edge of the stator core 2, and 72 rectangular slots 11 are evenly distributed on the inner edge, which are used to place the stator winding. The stator core 2 has 9 stator ventilation slots in the radial direction along the length direction. 3. A number of rotor...
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The invention discloses a low-speed and high-torque motor with a mixed circulating cooling structure. The low-speed and high-torque motor comprises a case, a rotor core and a stator core; an assemblygroove opening is formed in the outer edge of the stator core, and rectangular grooves are evenly distributed in the inner edge of the stator core; a stator ventilation groove is radially formed in the stator core, a plurality of rotor magnetic steel groove profiles are arranged on the outer ring surface of the rotor core, and the rotor magnetic steel groove profiles are arranged in an inverted-Tshape and internally provided with rotor magnetic steel; groove openings are formed in the positions, corresponding to the rotor magnetic steel groove profiles, of the outer edge of the rotor core, and the groove openings communicate with the rotor magnetic steel groove profiles; and a rotor ventilation groove is radially formed in the rotor core, pull rod screw holes are evenly distributed in therotor core, a fan is mounted on a spindle, a waterway is formed in the inner side wall of the case, waterway radiating ribs are arranged in the waterway, a water in-out opening communicating with thewaterway is formed in the outer wall of the case. The output property of a motor can be further enhanced while the internal temperature of the motor is decreased.
Description
technical field [0001] The invention relates to the technical field of motors, in particular to a low-speed high-torque motor with a mixed cycle cooling structure. Background technique [0002] Permanent magnet motors have the characteristics of low cost, low energy consumption, simple structure, and low failure rate, and their applications are becoming more and more extensive. Most permanent magnet motors consist of a rotor and a stator. A large number of magnetic steel sheets are arranged on the rotor, and excitation coils are arranged on the stator. The magnetic force generated by the excitation coil and the magnetic force of the magnetic steel sheet itself generate an acting force, thereby realizing the rotation of the rotor. [0003] During the energy conversion process of the motor, there are various internal losses, such as winding loss caused by current in the conductor, core loss caused by alternating magnetic field in the iron core, mechanical loss caused by vent...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K1/32H02K5/20H02K9/19H02K1/27
CPCH02K1/274H02K1/32H02K5/20H02K9/19
Inventor 赵勇钱伟陈虎威
Owner JIANGSU AEROSPACE POWER ELECTRIC