Rotating electrical machine

A mechanical and electric technology, applied in the direction of electronic commutation motor control, mechanical equipment, electrical components, etc., can solve the problem of high manufacturing cost

Inactive Publication Date: 2006-04-12
DOLPHIN ELECTRIC HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second type overcomes the above-mentioned problems, but the use of drive electronics makes the manufacturing cost greater than the first type

Method used

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  • Rotating electrical machine
  • Rotating electrical machine
  • Rotating electrical machine

Examples

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Embodiment Construction

[0026] figure 1 A two-pole rotating electromechanical machine according to the invention is shown. The machine comprises a housing 29 surrounding the rotor 1 and the field winding 2 . The rotor 1 is mounted on a shaft 3 for rotation within a housing and includes permanent magnets for establishing the rotor magnetic field. The field winding 2 is arranged around the rotor 1 and comprises three delta-connected windings 4 , 5 , 6 . The construction of this rotor 1 and field winding 2 is known in the prior art and does not require further elaboration.

[0027] In the described machine configuration, current is supplied to the field windings 4, 5, 6 through three single pole changeover switches 7, 8, 9 operated in sequence. The first fixed contact 10 of each changeover switch 7, 8, 9 is connected to the positive (+) side and the second fixed contact 11 is connected to the negative (-) side of the DC power supply (not shown). A moving switch contact 12 is connected to the field w...

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PUM

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Abstract

A rotating electrical machine has a housing with a shaft mounted rotatably in it. A rotor is fixed to the shaft and has a plurality of magnetic poles. A stator is positioned about the rotor and has a winding. A switch is mounted within the housing and has a first position for allowing current in one direction through the winding and a second position for allowing current in an opposite direction through the winding. A mechanical activator is movable with or by the shaft and acts on the switch to move it between the first and second positions.

Description

technical field [0001] The present invention relates to rotating electric machines that can be used as electric machines in which electrical energy is converted into motion or as generators in which motion is converted into electrical energy. Background technique [0002] Two types of DC motors are known. In the first type, the DC power supply is connected to the coils wound on the rotor through contact brushes and a commutator. The rotor rotates around or within a stator in the form of one or more permanent magnets or individually energized electromagnets. A commutator is used to switch the current between the coils. In the second type, the rotor includes a number of permanent magnets and the stator includes a number of winding coils. Associated circuitry controls the switching of current between the stator coils. [0003] The disadvantage of the first type is that the electromechanical wear of the brushes and commutator limits the lifetime of the machine to 2000 hours....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/00H02P6/14G08C19/16G08C19/28H02K25/00
CPCH02K25/00Y10T74/19647
Inventor 汤尼·E·穆杜威尼-柯斯顿汤玛斯·M·萧
Owner DOLPHIN ELECTRIC HLDG
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