Definition

1. Noun:
   • Commutator (in electrical engineering): A component in a direct current (DC) generator or motor that collects the current generated in the armature windings and converts alternating current (AC) to direct current (DC) for the external circuit. It is a cylindrical assembly of conductive segments insulated from each other.
   • Collector (general electrical term): A device or terminal for collecting electrical current from a moving part, such as in a generator.

Usage Examples

• Noun:
  • Bộ phận này là góp điện của máy phát. (This part is the commutator of the generator.)
  • Các lá đồng trên góp điện cần được làm sạch định kỳ. (The copper segments on the commutator need to be cleaned regularly.)
  • Dòng điện xoay chiều được chỉnh lưu thành một chiều nhờ góp điện. (The alternating current is rectified into direct current by the commutator.)

Advanced Usage

• Technical Context: The term "góp điện" is almost exclusively used in technical, engineering, and educational contexts related to electrical machinery. It is not used in everyday conversation.
• Function Clarification: It is often explained in relation to its function: "bộ phận góp điện" (the current-collecting part) or "vành góp điện" (the commutator ring).

Variants and Related Words

• Cổ góp (Commutator): A more technical synonym, literally "collecting neck."
• Vành góp (Commutator ring): Refers specifically to the ring-like structure.
• Bộ chỉnh lưu (Rectifier): A broader term for any device that converts AC to DC, which includes but is not limited to a mechanical commutator.
• Roto (Rotor): The rotating part of a machine, which often contains the commutator.

Synonyms

• Commutator: The most precise and common technical equivalent in English.
• Collector: A more general term; "collector ring" can be used for slip rings in AC machines, which are different from commutators.

Related Phrases (Technical Terminology)

• Lá góp điện (Commutator segment/bar): The individual copper bars that make up the commutator.
• Chổi than góp điện (Commutator brush): The carbon brush that makes contact with the commutator to collect current.
• Hư hỏng góp điện (Commutator fault/failure): A malfunction of the commutator.

Related Idioms

There are no common idioms using the term "góp điện" due to its highly technical nature.