A spiral compression arc extinguishing mechanism of a power circuit breaker
A circuit breaker, compression technology, applied to circuit breaker parts, circuits, electric switches, etc., can solve problems such as loss, circuit disconnection delay, ablation, etc.
Active Publication Date: 2019-01-04
江苏一开电力科技有限公司
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Problems solved by technology
[0002] At present, the existing power circuit breaker is a switch that protects the short circuit, overload and leakage of the circuit in the electric power. It can cut off the circuit when the circuit short circuit, overload and leakage occur. During the process of making or closing, a high-temperature and high-heat arc will be generated between the moving contact and the static contact. If the arc cannot be drawn out quickly and extinguished, it will ablate the contact point between the two contacts, and damage the power circuit breaker. The shell causes great damage, and more importantly, the arc will delay the disconnection of the circuit, causing irreparable losses; the arc extinguishing mechanism is very important for the power short circuit
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[0024] Such as figure 1 , 2 , 3, it includes a fixed end 1, U-shaped lugs 2, switch block 3, first fixed plate 4, first belt 5, second pulley 38, first pulley 7, first gear 8, third pulley 9. The second fixed plate 10, the third fixed plate 11, the double bevel gear 12, the spiral rod 13, the first bevel gear 14, the arc pilot plate 15, the third bevel gear 16, the second bevel gear 17, the first fixed shaft 18. The second fixed shaft 19, the fourth fixed plate 20, the third fixed shaft 21, the first spiral groove 22, the second spiral bar 23, the drive gear 24, the fourth fixed shaft 25, the return spring 26, the limit plate 27. Fifth fixed shaft 28, first T-shaped groove 29, second T-shaped groove 30, cylindrical pin 31, sixth fixed shaft 32, second T-shaped block 33, first T-shaped block 34, seventh fixed shaft 35. The fourth pulley 36, the second gear 37, the second pulley 38, the third gear 39, the first one-way ring 40, the second one-way ring 41, the fourth bevel gear 42...
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The invention belongs to the technical field of circuit breakers, in particular to a spiral compression arc extinguishing mechanism of a power circuit breaker, it includes fixed end, U-shaped lug, switch block, first fixing plate, first belt, second pulley, first pulley, first gear, third pulley, second fixing plate, third fixing plate, double bevel gear, spiral rod and so on, wherein one end of U-shaped lug is mounted on one side of upper end face of third fixing plate; A switch block is mount on that U-shaped support lug through a cylindrical pin; The driving gear is mounted on the cylindrical pin; At that end face of the first fix plate, a first T-shaped groove and a second T-shaped groove are sequentially formed from the top to the bottom. The moving spiral rod can divide the arc intomany segments while adapting to the arc motion, and the energy on the arc can be absorbed by the spiral rod more quickly, and the energy of the arc formed by the circuit breaker at this time can be absorbed quickly, thus avoiding the occurrence of unnecessary accidents.
Description
Technical field [0001] The invention belongs to the technical field of circuit breakers, and particularly relates to a spiral compression arc extinguishing mechanism of an electric circuit breaker. Background technique [0002] At present, the existing power circuit breaker is a switch that protects the circuit from short circuit, overload, and leakage in electric power. It can cut off the circuit when the circuit is short circuit, overload and leakage. During the opening or closing process, a high-temperature and high-heat arc will be generated between the moving contact and the static contact. If the arc cannot be quickly led out and extinguished, the contact point between the two contacts will be ablated, and the power circuit breaker will be damaged. The shell causes greater damage, and more importantly, the arc will delay the disconnection of the circuit and cause irreparable losses; the arc extinguishing mechanism is very important for the electric short-circuiter. In orde...
Claims
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IPC IPC(8): H01H73/18
CPCH01H9/34H01H73/18
Inventor 不公告发明人
Owner 江苏一开电力科技有限公司