JPS6270340U

JPS6270340U -

Info

Publication number: JPS6270340U
Application number: JP16306785U
Authority: JP
Priority date: 1985-10-22
Filing date: 1985-10-22
Publication date: 1987-05-02

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示すもので基準
値のコイル電圧が印加されている状態を示す側面
図、第２図はコイル電圧が不足した時の状態でト
リツプ位置を示す側面図、第３図はトリツプバー
によりトリツプバネが反付勢方向に押圧された状
態を示す側面図、第４図はラツチの斜視図、第５
図は従来装置を回路しや断器に組込んだ状態の一
部破断の側面図、第６図は第５図の線―の断
面図で基準値のコイル電圧が印加されている状態
図、第７図はコイル電圧が不足した時の状態を示
す断面図である。図において、１は電磁石、２はプランジヤー、
７はトリツプバー、１７はラツチ、１９はラツチ
バネ、２０はレバー、２２はリセツトバネ、２３
はトリツプバネである。なお、各図中同一符号は
同一または相当部分を示す。 Fig. 1 shows an embodiment of this invention, and Fig. 2 is a side view showing the state where a reference value of coil voltage is applied, and Fig. 2 is a side view showing the trip position when the coil voltage is insufficient. Fig. 3 is a side view showing the trip spring being pressed in the opposite biasing direction by the trip bar, Fig. 4 is a perspective view of the latch, and Fig.
The figure is a partially broken side view of a conventional device installed in a circuit or disconnector, and Figure 6 is a cross-sectional view taken along the line - in Figure 5, showing a state in which a standard value of coil voltage is applied. FIG. 7 is a sectional view showing a state when the coil voltage is insufficient. In the figure, 1 is an electromagnet, 2 is a plunger,
7 is a trip bar, 17 is a latch, 19 is a latch spring, 20 is a lever, 22 is a reset spring, 23
is a trip spring. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

It has an electromagnet to which a circuit voltage is applied, and a movable member that is attracted to a reset position when a reference voltage is applied to the electromagnet, and the movable member is attracted when the circuit voltage falls below the reference value. In an undervoltage trip device for a circuit breaker, which is released from the electromagnet and moved to an operating position, and in response to the movement of the movable member, operates a trip bar of a trip device to quickly disconnect the circuit. ,
A latch whose one end is actuated by movement of the movable member, a latch spring which resets the latch, and a lever whose one end is removably engaged with the other end of the latch and whose other end is engageable with the trip bar. , a reset spring that resets the lever; this reset spring biases the lever in the trip direction with a force greater than the force that moves the lever in the reset direction, and also presses the lever in the opposite biasing direction by the operation of the trip bar after the trip position; a trip spring which is operated by the trip spring, and when the latch is actuated against the latch spring by movement of the movable member, the lever disengaged from the latch is actuated by the trip spring to trip the trip bar; When the trip spring is pressed in a counter-biasing direction due to an operation after the position, the lever is released from the trip spring and reset by the reset spring, and the latch that has come off the lever is reset by the latch spring. An undervoltage trip device for circuit breakers and circuit breakers, characterized by: