Permanent-magnet DC motor
A technology of DC motors and permanent magnets, applied in DC commutators, electrical components, electromechanical devices, etc., can solve the problems of low power and inconvenience of permanent magnet DC motors
Pending Publication Date: 2020-02-07
刘成福
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Problems solved by technology
In the permanent magnet DC motor of the prior art, the permanent magnet is usually made into a tile shape, and the casing is made into a cylinder shape. The outer arc of the tile-shaped permanent magnet is installed on the inner wall of the cylinder, and the inner arc is matched with the rotor. The permanent magnet DC motor of this structure is installed and disassembled under the condition of magnetic force, which is very inconvenient, so the power of this permanent magnet DC motor is very small
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[0009] Such as figure 1 , figure 2 Shown: the permanent magnet DC motor of the present invention is made up of stator and rotor, and the parts that make up stator include: 1 casing, 2 soft iron magnetic poles, 3 permanent magnets, 4 inner arc iron plates, 5 outer arc iron plates, 6 Frame, 7 front end cover, 8 front end cover bearing, 9 rear end cover, 10 rear end cover bearing, 11 brush assembly, 12 spacer, 13 magnetic guide plate, etc. The components that make up the rotor include: 14 rotor shaft, 15 rotor core and coil, 16 commutator, etc. The permanent magnet DC motor of the present invention is characterized in that: the casing 1 of the permanent magnet DC motor is made of a cylindrical shape with aluminum alloy, and the circumference of the middle part of the cylinder is provided with four rectangular holes with the same spacing and size, and the soft iron magnetic pole 2 is used The silicon steel sheet is punched into a "convex" shape. The large and small sections are...
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The invention discloses a permanent-magnet DC motor, and belongs to the field of permanent-magnet DC motors. A stator case is made of aluminum alloy in a cylindrical shape, four holes with same distance and same size are formed in the circumference of a middle part, four convex soft ferromagnetic poles are in arc shapes in an inward-outward way and are arranged in the hole holes of the case, innerarcs are matched with a rotor, four arc permanent magnets respectively loaded with inward-outward arc iron plates are arranged on outer arcs of the four soft ferromagnetic poles, four rectangular aluminum-alloy partition strips are arranged among four permanent magnets outside the shell, and four rectangular magnetic plates are arranged outside the partition strips and between the two magnetic pole outer arc iron plates. A conventional four-pole DC motor rotor is used as a four-pole permanent-magnet DC motor rotor, two DC electromagnets are arranged at two ends of the inward-outward arc ironplates of the permanent magnets, an attraction mode is employed, the permanent magnets are very convenient to install and disassemble, and thus, the large-power four-pole permanent-magnet DC motor canbe manufactured.
Description
Technical field: [0001] The invention relates to a permanent magnet direct current motor, in particular to a four-pole permanent magnet direct current motor. Background technique [0002] The permanent magnet DC motor is an improvement to the existing two-pole permanent magnet DC motor. The stator four-pole permanent magnet pole is used to replace the two-pole permanent magnet pole of the stator, so that the magnetic circuit is shortened and the magnetic force is enhanced. The invention belongs to a four-pole permanent-magnet direct-current motor and adopts a common four-pole direct-current motor rotor. Compared with the existing two-pole permanent-magnet direct-current motor, the power can be enlarged, and the magnetic circuit is short, the magnetic force is strong, and the electric energy is more saved. In the permanent magnet DC motor of the prior art, the permanent magnet is usually made into a tile shape, and the casing is made into a cylinder shape. The outer arc of th...
Claims
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IPC IPC(8): H02K23/04
CPCH02K23/04
Inventor 刘成福
Owner 刘成福