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A choke device for radio frequency interference of a rectifier motor with permanent magnets

A choke coil and rectifier technology, applied in the field of electrical joints, can solve the problem of radio frequency interference of the choke coil connection, etc.

Active Publication Date: 2017-08-04
德梅尔有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The described known structure is advantageous, however it does not solve the connection of the choke to eliminate radio frequency interference

Method used

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  • A choke device for radio frequency interference of a rectifier motor with permanent magnets
  • A choke device for radio frequency interference of a rectifier motor with permanent magnets
  • A choke device for radio frequency interference of a rectifier motor with permanent magnets

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Embodiment Construction

[0011] The invention relates to a DC rectifier motor with permanent magnets. The motor as figure 1 As shown, it mainly includes a casing 1 and a rotor, and a permanent magnet is fixed in the casing 1 . The rotor consists of a shaft, rotor laminations with copper windings and a rectifier. The rotor is suitably mounted with both bearings embedded in its end shields. The bearing endshield 9 on the commutator end of the motor is formed in one piece of thermoplastic material and includes guides 11 for the brushes 12, support bearings and other necessary components. Electric energy is supplied to the brushes 12 via the spring 13 and the choke coil 10 . To eliminate radio frequency interference, a suitable capacitor 14 can be placed between the supply voltage and the housing 1 . At the end of the rectifier, a coupling element 15 is arranged in the bearing end shield 9, this coupling element has three functions: to connect the mains voltage to the motor, to electrically couple to ...

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PUM

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Abstract

The coil assembly has end shield (9) that is formed as single piece and guides (11) for brushes (12), as a guide a spiral spring (13), and a coupling element (15). A choke coil (10) is arranged in a holder and the lower electrical terminal of choke coil is inserted in a hole formed in the end shield and a leg is pressed against the spiral spring.

Description

technical field [0001] The subject of the invention is the structure of a choke device for radio frequency (RF) interference of a DC rectifier motor with permanent magnets and the electrical connections of the choke device connected by springs to the brushes on the rectifier-side bearing endshield. The structure of the invention provides a simple connection of the voltage to the motor, reliable guidance of the brushes and simple installation of other necessary elements, especially chokes to eliminate radio frequency interference. The spring of the brush rests against the choke joint, so said spring forms the electrical connection between the choke and the brush. Background technique [0002] Known variants of bearing shields, in particular of the brush-end of DC rectifier motors, are usually designed in such a way as to allow a pair of brushes to be guided and the springs to be adequately positioned, so The spring pushes the brushes towards the rectifier and at the same tim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K11/026
CPCH02K11/026
Inventor S·加贝尔B·贝尔通切利F·Z·斯塔里克
Owner 德梅尔有限公司