MOLDED CASE CIRCUIT BREAKER WITH AN IMPROVED OPERATING MECHANISM HAVING PIVOT-TRANSFER TRIP-FREE LINKAGE

MOLDED CASE CIRCUIT BREAKER WITH AN IMPROVED OPERATING MECHANISM HAVING PIVOT-TRANSFER TRIP-FREE LINKAGE

  • CN 1,018,593 B
  • Filed: 07/17/1986
  • Issued: 10/07/1992
  • Est. Priority Date: 07/18/1985
  • Status: Active Grant
First Claim
Patent Images

1. An electrical equipment circuit breaker, comprise the die casting case (32 that an insulating material constitutes, 34), a movable electric upper contact head assembly (52), the relativeness that electric down contact assembly (50) and one are used for upper contact head assembly (52) is moved to following contact assembly (50) is the operating mechanism (58) of " closing " lock and " branch " gate position, this operating mechanism (58) comprises the elbow-bar mechanism (80) of a misalignment, this elbow-bar mechanism (80) comprises the last crank connecting link (102) that at least one is movable, the rotatable support (96) of a lower crank connecting rod (104) and a rigidity, a described end of going up crank connecting link (102) has a groove (132) of following axle (108) that is used to mesh crank connecting link (102), the other end links together by a crank spring pivot (106) and described lower crank connecting rod (104), this lower crank connecting rod (104) is connected with a movable electric upper contact head assembly (52) by a crank connecting axle (110), described rotatable support (96) has first hole that penetrates, in order to accept a back shaft (98) of rotatable support (96), and has second hole (136) that penetrates, it separates a preset distance with first hole, in order to accept follow spool (108) of crank connecting link (102), during breaker open operation, last crank connecting link (102) response turns the rotation of support (96) and moves, feature of the present invention is, described elbow-bar mechanism (80) also comprises a stationary links (158), it is fixed on the braking roll (90), the vertical relative two ends of braking roll (90) are fixing by the hole (166) on the metal side plate (86), stationary links (158) contains the lower surface (160) of an elongation, also contain a groove (164), its shape is just in time held the back shaft (98) of rotatable support (96), the terminal on described last crank connecting link (102) surface (162) movably constitutes first pivot(ing) point (163), the terminal of the lower surface (160) of stationary links (158) constitutes second pivot(ing) point (168), in breaker open operation operating period, the lower surface (160) of stationary links (158) can be meshed with the surface (162) of last crank connecting link (102), and when being activated, the described movable axle (108) of following of going up crank connecting link (102) one after the other rotates around first pivot(ing) point (163) and second pivot(ing) point (168) in elbow-bar mechanism (80).

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×