A device for contacting and supplying power to a moving circuit

A circuit and motion technology, applied in the field of contact power supply devices, to achieve the effect of improving lifespan and reducing friction
CN112072861BActive Publication Date: 2022-04-19TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2022-04-19

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Abstract

The invention relates to a device for supplying power to a moving circuit by contact, which includes a coil lead-out structure, a brush, a rotating shaft and lead wires. rotation; the lead wire is connected with the brush, and also includes a conductive wheel and a driving structure; there is a contact surface between the conductive wheel and the coil lead-out structure, and the driving structure drives the conductive wheel to rotate to realize the The conductive wheel is in rolling contact with the coil lead-out structure at the contact surface; the end of the brush is located at the axis of the side of the conductive wheel, and is in sliding contact with the side of the conductive wheel. The invention can be used not only for DC motors, but also for electric excitation synchronous motors or winding asynchronous motors or double-fed asynchronous motors; it can eliminate the friction between the brushes and commutators or slip rings, and improve device or slip ring life.
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Description

technical field

[0001] The invention relates to a contact power supply device, in particular to a device for contact power supply to a moving circuit. Background technique

[0002] Modern society cannot do without motors, and motors are used in transportation, industrial and agricultural production, information processing, and various fields of daily life. There are many types of motors with different structures, such as asynchronous motors, permanent magnet motors, electric excitation motors, etc.

[0003] In the motor, it is often necessary to provide contact power supply from the static circuit to the moving circuit. Typically, there are the following situations:

[0004] 1. DC motor: The armature winding of the DC motor is in a state of rotating motion. During operation, it is necessary to input the DC power of the external circuit to the armature winding of the rotor, or output the DC power of the armature winding to the external circuit. The commutation is used in the...

Claims

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