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Fault circuit breaker

A fault current protection and switching technology, which is applied in the protection switch, the switch operated by the ground fault current, the parts of the protection switch, etc., can solve the problems of plastic parts wear and failure, and achieve small torque and compactness The effect of the design

Inactive Publication Date: 2012-11-07
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Malfunctions can easily occur in the area where the plastic part is arranged on the handle part and in the area where the tension spring acts on the plastic part
Plastic parts themselves also wear out with constant use

Method used

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  • Fault circuit breaker
  • Fault circuit breaker
  • Fault circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] exist figure 1 and 3 A fault current protective switch, shown in cross-section, generally at 10, comprises a housing 12 from which protrudes a shank 14 of a handle part, generally at 16, which is rotatable about Axis 18 rotates, and that is from figure 1 and 2 shown in the ON position to image 3 and 4 In the off position shown in , or vice versa, a torque-generating force can act on the handle part 16 , so that the handle part can stay not only in the on position but also in the off position. This is then followed by figure 2 to describe in detail.

[0027] exist Figure 8 The tension spring shown in its entirety in FIG. 1 and marked with 20 is hooked via a lower hook 22 to a bolt 24 formed on the housing 12 . The spring has a plurality of coils 25 . A rod-shaped insert 26 is formed outwards after the last coil, and a rod-shaped end 28 of the spring 20 is formed outwards perpendicularly to the rod-shaped insert 26 to form an L-shape. This end 28 is inserted ...

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PUM

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Abstract

A tension spring (20) is directly eccentrically forced to the holding element (16) of the residual-current circuit breaker. The torque applied to the holding element by the tension spring is continuously increasing utile the holding element moves to the off-position, and reduces relatively when the holding element is in the on-position. Therefore, the proportional relationship of force of the residual-current circuit breaker is optimized.

Description

technical field [0001] The invention relates to a fault current protective switch according to the preamble of claim 1 . Such fault current protective switches are known in the technical field. Background technique [0002] It is known to have a fault current circuit breaker with a handle part which is rotatable about an axis of rotation and which, in contrast to the fixed position, optionally has an on position and an off position. A locking mechanism, which is operatively connected to the handle part in a known manner, acts in the ON position of the handle part, and the contact part moved with the help of the locking mechanism touches the stationary contact part, so that the circuit is closed. When the handle part is transferred from the on position into its off position, the locking mechanism is unlocked, which thus separates the moving contact part from the stationary contact part and thus interrupts the electrical circuit. [0003] A plurality of springs serves to sta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H73/36H01H73/40
CPCH01H2071/665H01H71/503H01H71/528H01H71/521H01H83/02
Inventor 约瑟夫·赫施贝格尔
Owner SIEMENS AG