CN2478238Y

CN2478238Y - Anti-impact separating-excited electrical appts. release

Info

Publication number: CN2478238Y
Application number: CN 00268518
Authority: CN
Inventors: 葛诗慧; 戴志伟; 由浤
Original assignee: SHANGHAI ELECTRIC APPLIANCE SCI INST
Current assignee: SHANGHAI ELECTRIC APPLIANCE SCI INST; Shanghai Electrical Apparatus Research Institute Group Co Ltd
Priority date: 2000-12-28
Filing date: 2000-12-28
Publication date: 2002-02-20
Anticipated expiration: 2010-12-28

Abstract

The utility model relates to a shunt release capable of resisting strong impinge which is composed of a rack, a gag bit, a reaction spring, a magnetic yoke, a coil, an ejector pin and a breaker shunt release shaft, and is characterized in that an auxiliary mechanism is also added, which means that a side of the rack is added with a rod-like balanced block and a U-shaped guiding rack; the guiding rack is fixed with the rack; the lower end of the balanced block is provided with a coupling part; vertical to the coupling part a sliding guide board with the sliding holes at the two ends are provided; the sliding guide board is provided with a fixed fulcrum and also a reinforced rack is connected with the rack. The new design in the utility model adopts the mode that the product of the weight of the components generating the reversed torque multiplying by the distance of the fulcrum is equal, so that inertia forces generated by the wallops are in balance, thereby attaining the objective of shock resistance.

Description

A kind of resisting strong impact shunt release

The utility model relates to a kind of resisting strong impact shunt release that is used for breaker of plastic casing, belongs to the low voltage electrical apparatus technology field, is applicable to the particularly usefulness of warship usefulness breaker of plastic casing shock resistance shunted exciter tripping of breaker of plastic casing.

Low-voltage electrical apparatus is that the low-voltage circuit system joins by protection electrical equipment, and various circuit breakers are the classes in the low-voltage electrical apparatus.Breaker of plastic casing comprises plastic casing on structure, four jointed gear units, contact system and release.What the utility model related generally to is the release part of breaker of plastic casing, particularly relates to shunt release.This release can under normal circumstances or under the case of emergency, realization is automatic or remote control disjunction to circuit breaker.

The structure of the release of existing product as shown in Figure 1,1 is that support, 2 is the circuit breaker tripping axle for yoke, 5 for coil and skeleton, 6 non magnetic push rods, 7 for reaction spring 4 for armature, 3.The course of action of this kind release is as follows: when coil 5 energized, because magnetic line of force effect overcomes the spring counter-force armature 2 drive push rods 6 are moved upward, thereby bump trip shaft 7 makes the circuit breaker disjunction.The outage back is under reaction spring 3 counter-force effects, and armature 2 automatically reverts to the home position.

From said apparatus as can be seen, this device does not possess the resisting strong impact performance, when on C200 type shock machine, testing, because its malfunction makes closed warship disconnect with breaker of plastic casing, one is because the armature 2 of this device and be associated in together push rod 6 under the strong impact force effect produces fast moving by analysis, has clashed into trip shaft, trip shaft 7 is rotated thread off, cause that the circuit breaker wrong diagnosis opens; The 2nd, because support 1 rigidity is not enough, side direction produces and rocks under impact condition, causes push rod 6 bump trip shaft 7, also can cause the circuit breaker malfunction, causes the unnecessary interruption of power supply like this, so it can not adopt in breaker of plastic casing at warship.

The purpose of this utility model provides a kind of existing shunt release key property can be applied to the shunt release that breaker of plastic casing on the naval vessel can not produce the resisting strong impact of misoperation again under the thump situation, to replace release of the prior art.

In order to achieve the above object, on the structure of the release of original breaker of plastic casing, improved, increased the shock resistance structural design, promptly increased the release combination of several parts and prior art, just can be played the effect that resists strong thump.The part that increases is a balance weight 8, and its effect has been a trimming moment, also has guiding trestle 9, connector 10, sliding guide 11, is slidingly connected screw nut 12, sliding guide fixed pivot 13 and reinforced support 14.

Operation principle through the resisting strong impact shunt release after the improvement design is as follows:

Under normal circumstances, when coil 5 energisings, drive trip shaft 7, make the circuit breaker tripping disjunction because magneticaction makes armature 2 drive push rod 6 on the one hand.On the other hand by connector 10, sliding guide 11 with to be slidingly connected screw nut 12 be that supporting point drives balance weight 8 and moves down in guiding trestle 9 with sliding guide fixed pivot 13.Supporting owing to having considered in the driving parts design, so friction is very little, do not influence the holding function of former release.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the original tripper structure schematic diagram of plastic casing circuit breaker.

Fig. 2 is the utility model resisting strong impact shunt release structural representation.

With reference to Fig. 1,1 is that support, 2 is that armature, 3 is that reaction spring, 4 is that yoke, 5 is that coil and skeleton, 6 are that non magnetic push rod, 7 is the circuit breaker tripping axle, and this is the part of existing product typical structure.

With reference to Fig. 2, on the basis of tripper structure shown in Figure 1, increase a part of part, constitute a kind of new structure.Promptly increase the balance weight 8 of a bar type in a side of support 1, this balance weight is vertical with U-shaped guiding trestle 9, and guiding trestle 9 is fixed on the support 1.Be connected with connector 10 in the lower end of balance weight 8, with connector 10 perpendicular be the sliding guide 11 that sliding eye is opened at bar shaped and two, on connector 10, there is one to be slidingly connected screw nut 12, at sliding guide 11 middle parts and support 1 bottom sliding guide fixed pivot 13 is arranged.For increasing the stability of release, increased an anti-L shaped reinforced support 14 and fixed with support 1.

The new construction of above release through repetition test repeatedly, makes the component quality that produces opposite moment equate with the pivot distance product owing to adopted, thus the mutual balance of inertia force of generation when making impact, thus reached shock proof purpose.

Shock resistance shunt release of the present utility model is loaded on warship, and the high score circuit breaker carries out automatically or the emergent disjunction of remote control provides a kind of reliable new product with exchanging, and has satisfied the supporting needs of novel naval vessels power equipment, has certain economic benefits and military benefit.

Claims

1, a kind of resisting strong impact shunt release is by support [1], armature [2], reaction spring [3], yoke [4], coil and skeleton [5], non magnetic push rod [6] and circuit breaker tripping axle [7] are formed, it is characterized in that also having set up an additional mechanism providing additional operation, promptly the side at support [1] has a bar type balance weight [8] and U-shaped guiding trestle [9], guiding trestle [9] and support [1] are fixing, lower end at balance weight [8] is connected with connector [10], connector [10] is perpendicular with the sliding guide [11] that bar shaped and two have sliding eye, on connector [10], there is one to be slidingly connected screw nut [12], [sliding guide fixed pivot [13] is arranged at 11 bottom, is fixed on the support [1] at the middle part of sliding guide [11] and support.

2, resisting strong impact shunt release according to claim 1 is characterized in that the right side of support [1] has increased an anti-L shaped reinforced support [14], and both fix.