JPH0485554U

JPH0485554U -

Info

Publication number: JPH0485554U
Application number: JP12728590U
Authority: JP
Priority date: 1990-11-29
Filing date: 1990-11-29
Publication date: 1992-07-24
Anticipated expiration: 2005-11-29
Also published as: JP2522465Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の要部正面図、第２
図は第１図の底面図、第３図は第１図の側面図、
第４図はその動作説明図、第５図は第４図の底面
図、第６図はその全体の動作説明図、第７図は本
考案の実施例と部分的に共通する従来実施例の正
面図、第８図は第７図の半面破断平面図、第９図
は動作説明を含む要部詳細図、第１０図はその電
気回路図、第１１図はその波形図である。２１，３１，３６，３９……スプリング、２２
……可動接点、２３……セパレータ、２４……漏
電遮断器、２５……固定接点、２６……ハンドル
、２７……蓋体、２８，３８……軸、２９……ト
リツプアーム、３０……トリツプコイル、３２…
…継鉄、３３……プランジヤ、３４……引外し板
、３５……漏電表示釦、３７……ラツチ。 Figure 1 is a front view of essential parts of an embodiment of the present invention, Figure 2
The figure is a bottom view of figure 1, figure 3 is a side view of figure 1,
Fig. 4 is an explanatory diagram of its operation, Fig. 5 is a bottom view of Fig. 4, Fig. 6 is an explanatory diagram of its entire operation, and Fig. 7 is a diagram of a conventional embodiment that is partially common to the embodiment of the present invention. FIG. 8 is a front view, FIG. 8 is a half-cut plan view of FIG. 7, FIG. 9 is a detailed view of the main part including explanation of operation, FIG. 10 is an electric circuit diagram thereof, and FIG. 11 is a waveform diagram thereof. 21, 31, 36, 39...Spring, 22
... Movable contact, 23 ... Separator, 24 ... Earth leakage breaker, 25 ... Fixed contact, 26 ... Handle, 27 ... Lid, 28, 38 ... Shaft, 29 ... Trip arm, 30 ... Trip coil , 32...
...Yoke, 33...Plunger, 34...Trip plate, 35...Earth leakage indicator button, 37...Latch.

Claims

[Scope of utility model registration request]

A contact that is biased in the OFF direction by a spring and connected to the load circuit, a separator made of an insulating material that moves up and down with the contact, a handle that turns on and off the contact, and a spring for the handle. A toggle-operating link mechanism that moves the separator downward and holds the contact in the on state by turning the separator from off to on against a biasing force; and an engaging arm attached to the link mechanism that engages with the link mechanism. The link mechanism is rotated via a shaft to a yoke on the base of the earth leakage breaker so that the toggle operating state of the link mechanism can be maintained, and is biased via a spring in the direction of maintaining the engaged state with the engaging arm. The trip coil is energized by the installed trip arm and the earth leakage detection output from the zero-phase current transformer connected to the load circuit, and slides within the yoke a preset distance against the biasing force of the spring. The tripping plate engages with the tripping plate a distance A, and is projected onto the lid of the earth leakage breaker under the biasing force of the spring by sliding of the tripping plate due to the excitation of the trip coil, and the separator is An earth leakage indicator button that is pulled into the lid of the earth leakage breaker by downward movement to a position where it can engage with the tripping plate against the biasing force of the spring, and a spring that is at least a distance A from the tripping plate. By sliding against the biasing force, the separator engages with the tripping plate to prevent the tripping plate from returning due to the biasing force of the spring, and the upward movement of the separator also prevents the separator from engaging with the tripping plate. An earth leakage circuit breaker characterized by comprising a latch for releasing the connection.