Rotation pin correction mechanism for four poles mold cased circuit breaker
A technology of correction mechanism and rotating pin, which is applied in the direction of protection switch operation/release mechanism, circuit, parts of protection switch, etc. It can solve the problems of uneven correction amount, excessive deformation, damage of upper block and lower block, etc.
Inactive Publication Date: 2011-06-08
LSIS CO LTD
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AI Technical Summary
Problems solved by technology
However, it is a method of manually tightening the screw to perform correction, causing a problem that the relevant part of the rotary pin may be excessively deformed to become a load preventing contact between the contacts and be damaged when the screw tightening force is excessive The upper block and the lower block; and when the screw tightening force is insufficient, contact cannot be formed or poor contact is made between the contacts in the N-pole unipolar unit
In other words, the background art has the first problem that the correction amount is uneven
In addition, the background art has a second problem that it may not be applicable when the space between monopolar units is narrow since the upper and lower blocks have thickness in its construction and screws and nuts are used
Method used
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[0023] The object of the present invention, as well as the construction for achieving the aforementioned object and its working effect will be clearly understood through the following description of preferred embodiments of the present invention with reference to the accompanying drawings.
[0024] refer to figure 1 , a four-pole molded case circuit breaker provided with a rotary pin correction mechanism according to a preferred embodiment of the present invention may include a four-pole single-pole unit 3a, 3b, 3c, 3d, a pair of rotary pins 2a, 2b and a switching mechanism 1.
[0025] The four pole monopole units 3a, 3b, 3c, 3d may include an R pole monopole unit (ie, an R phase monopole unit) 3a, an S pole monopole unit (ie, an S phase monopole unit) 3b, a T pole A single-pole unit (i.e., a T-phase single-pole unit), and an N-pole single-pole unit (i.e., an N-phase single-pole unit) 3d, each of the single-pole units 3a, 3b, 3c, 3d may include a movable contactor and fixed...
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Provided herein is a mechanism for correcting the deformation generated at a portion of the rotation pin between a single pole unit farthest away from a switching mechanism and a single pole unit adjacent thereto, and there is disclosed a correction plate provided at a portion of the pair of rotation pins located between a single pole unit farthest away from the switching mechanism and a single pole unit adjacent thereto, having a pair of rotation pin through hole portions to allow the pair of rotation pins to be penetrated, respectively, and a pair of adjustment extending portions extended in the direction in which the rotation pins penetrate at the upper or lower portion of the rotation pin through hole portions to determine the height of penetration allowance hole of the rotation pins together with the rotation pin through hole portions.
Description
technical field [0001] The invention relates to a four-pole molded case circuit breaker, in particular to a rotary pin correction mechanism for a four-pole molded case circuit breaker. Background technique [0002] A four-pole molded case circuit breaker is a type that can connect wires other than those used in a molded case circuit breaker for three-phase alternating current with a phase difference (that is, three poles (phases) of R, S, and T) as a ground A molded case circuit breaker for the wires of the neutral pole (neutral phase) of the pole (hereinafter referred to as "N" pole). [0003] Generally, a molded case circuit breaker is constructed by including the following mechanisms: a tripping mechanism for detecting the generation of abnormal current on a circuit in a package using a synthetic resin material having electrical insulating properties; a switching mechanism for the circuit Provide a device that can be manually switched by manipulation of a handle or that ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01H71/10
CPCH01H71/1009H01H71/52
Inventor 安炳秀
Owner LSIS CO LTD