CN201311898Y

CN201311898Y - Electricity leakage tripping mechanism with alarm

Info

Publication number: CN201311898Y
Application number: CNU2008202147513U
Authority: CN
Inventors: 晏卫江; 黄剑; 陈志刚; 管瑞良; 王炯华
Original assignee: Changshu Switchgear Manufacturing Co Ltd
Current assignee: Changshu Switchgear Manufacturing Co Ltd
Priority date: 2008-12-11
Filing date: 2008-12-11
Publication date: 2009-09-16
Anticipated expiration: 2018-12-11

Abstract

Disclosed is an electricity leakage tripping mechanism with an alarm, which comprises a base, a casing, coils, a pull rod, an iron core, an indication button, a first reposition spring, a second reposition spring and an alarm switch, wherein the coils are arranged inside the base, the pull rod is movably mounted inside the base, one end of the iron core is fixed to the pull rod while the other end stretches into the coils, the second reposition spring is disposed on the iron core, the alarm switch is arranged inside the base, the indication button is movably positioned inside the base via the first reposition spring, a first projected platform interlocked with a button on the alarm switch and a second projected platform interlocked with the pull rod are formed on two sides of a button shaft of the indication button, and the base is covered by the casing. The utility model has the advantages of simple structure, low costs, small space occupation and good movement stability.

Description

A kind of electrical leakage tripping device with warning

Technical field

The utility model relates to a kind of electrical leakage tripping device of circuit breaker, and particularly a kind of electrical leakage tripping device with warning belongs to low tension switch attachment technique field.

Background technology

Residual current circuit breaker is the most important and the most comprehensive a kind of device for switching of performance of electric power system, it can be widely used in the electric wiring of various low-voltage electrical apparatuses, low-voltage distribution and automatic control system etc., when getting an electric shock, the person can play a protective role, after can preventing that also power consumption equipment is because of insulation damages, produce the fire hazard that earth fault current causes; Can also be used to distributing the overload and the short circuit of electric energy and protection circuit and power-supply device simultaneously; Can also be used as the usefulness of the not frequent transitions of circuit.Also have warning function of electric leakage, can effectively prevent from electric fault to take place owing to long-term electric leakage produces ageing of insulation.

At present; electrical leakage tripping device in traditional residual current circuit breaker is mainly used in realization earth leakage protective; and the warning function of electric leakage in the residual current circuit breaker mainly is to lean on the form of circuit breaker circuit board having built-in or plug-in wiring board knapsack to realize; this version that realizes leakage-current alarm by electronic circuit board; not only need take the inner or outside certain space of circuit breaker; and complex structure, cost is higher, and action stability is poor simultaneously.

Summary of the invention

Problem in view of above-mentioned existence, the purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, cost is low, do not need circuit board having built-in or plug-in wiring board knapsack and the electrical leakage tripping device that can realize warning function of electric leakage, take up room band little, that action stability is good and report to the police.

The purpose of this utility model reaches like this, a kind of electrical leakage tripping device with warning, comprise base, case, coil, pull bar, iron core, instruction button, first back-moving spring, second back-moving spring and alarm switch, described coil is installed in the base; Described pull bar is arranged in the base versatilely; One end of described iron core is fixed on the pull bar, and the other end of iron core probes in the described coil, and second back-moving spring also is installed on iron core; Described alarm switch is installed in the base; Described instruction button is arranged in the base by first back-moving spring up and downly, the push button shaft both sides of instruction button constitute be used for alarm switch on button realize first boss of interlock and be used for realizing second boss of interlock with pull bar; Described case cap seal is on base.

The utility model constitutes the 3rd boss on an end of described pull bar, constitute to be stuck in the contact arm that is used to activate circuit breaker operation mechanism outside the described base on the other end of pull bar.

The utility model is formed with a groove that is used for for the second boss scarf in the middle of the bottom of described the 3rd boss.

The utility model on described pull bar and an end end that is close to the 3rd boss also constitute a bending plate that is used for fixing iron core.

Be vertical setting between bending plate described in the utility model and the described pull bar.

The utility model offers the iron core installing hole on described bending plate.

The utility model also constitutes a boss that is used to install first back-moving spring in the push button shaft of described instruction button bottom.

The utility model is owing to be provided with alarm switch in the inside of electrical leakage tripping device, alarm switch is realized leakage-current alarm by the interlock with instruction button, the electrical leakage tripping device that this band is reported to the police, not only simple in structure, cost is low, circuit breaker does not need to realize warning function by circuit board having built-in or plug-in wiring board again that it is little to take up room, and action stability is good.

Description of drawings

Fig. 1 is an example structure schematic diagram of the present utility model.

Fig. 2 is the structural representation of instruction button described in the utility model.

Fig. 3 is the structural representation of pull bar described in the utility model, iron core.

Fig. 4 is the structure diagram of the utility model when trip status.

Embodiment

By the description of applicant, will help to understand the utility model more, and good effect of the present utility model is embodied more, but embodiment should not be considered as the restriction to some extent to the utility model scheme embodiment.

See also Fig. 2, instruction button 4 described in the utility model is made of push button shaft 41 and the button cap 44 that is located at push button shaft 41 tops, described push button shaft 41 both sides radially constitute be used for alarm switch 6 on button 61 realize first boss 42 of interlock and be used for realizing second boss 43 of interlock with pull bar 5, constitute a narrow round boss that contracts 45 in described push button shaft 41 axial bottoms, first back-moving spring 7 is packed on the boss 45, be used for resetting of instruction button 4.

See also Fig. 3, pull bar 5 described in the utility model is strip, on an end of pull bar 5, constitute the 3rd boss 52, be formed with a groove 521 that is used for for second boss, 43 scarves in the middle of the bottom of the 3rd boss 52, on the other end of pull bar 5, constitute and be stuck in the contact arm 54 that is used to activate circuit breaker operation mechanism outside the described base 1, on pull bar 5 and an end end that is close to the 3rd boss 52 also constitute a bending plate 51, this bending plate 51 is arranged on the vertical of pull bar 5.Offering a circular hole on bending plate 51 is iron core installing hole 511, in the iron core installing hole 511 riveted joint cored 9, second back-moving spring 8 is packed on the iron core 9, be used for resetting of pull bar 5.

The utility model is assembled like this, see also Fig. 1, and in conjunction with Fig. 2, Fig. 3 and Fig. 4, earlier first back-moving spring 7 and instruction button 4 are packed into together in the base 1, wherein: an end of first back-moving spring 7 is resisted against on the boss 45 of indication knob 4, the other end of first back-moving spring 7 is resisted against on the inwall of base 1, end with iron core 9 is riveted on the bending plate 51 of pull bar 5 then, second back-moving spring 8 is installed on iron core 9 again, then the other end with iron core 9 inserts in the coil 3, one end of second back-moving spring 8 is resisted against on the outer wall of coil 3 one sides, the other end of second back-moving spring 8 is resisted against on the lateral surface of bending plate 51, at last with the above-mentioned pull bar that assembles 5, iron core 9, second back-moving spring 8 and coil 3 are packed in the base 1 together, and the lower surface 53 that makes pull bar 5 is pressed on the upper surface of second boss 43 of instruction button 4, then again alarm switch 6 is packed in the base 1, after installing, first boss 42 of instruction button 4 compresses the button 61 on the alarm switch 6, make button 61 keep the pushing state, and there is interaction relation, at last case 2 snapped on the base 1.

Operation principle of the present utility model: when distribution system generation leak current fault, electric leakage signal is learnt and is sent in electric-leakage detection circuit detection by circuit breaker, coil 3 in the electrical leakage tripping device that band is reported to the police is after receiving electric leakage signal, coil 3 is with pull-core 9, driving the pull bar 5 of riveting with iron core 9 moves to coil 3 directions, make in second boss 43 on the instruction button 4 falls into groove 521 on the pull bar 5 from the lower surface 53 of pull bar 5, instruction button 4 moves upward under the elastic force effect of first back-moving spring 7, fall into groove 521 on the pull bar 5 fully until second boss 43 on the instruction button 4, promptly the upper surface of second boss 43 contacts with the lower surface of groove 521, motion stops, at this moment, instruction button 4 segment distances protruding upward, the expression electrical leakage tripping device is threaded off, and activate circuit breaker operation mechanisms and make circuit breaker tripping by being stuck in the outer contact arm of base 1 54 on the pull bar 5, with circuitry cuts.Meanwhile, in the process that instruction button 4 moves upward, the button 61 by first boss, the 42 release alarm switches 6 on the instruction button 4 makes button 61 be in free state, and at this moment alarm signal is changed and sent to alarm switch 6.Have only when the button cap 44 of pressing instruction button 4, after instruction button 4 resetted, signal can be removed.

The utility model is installed in the coil 3 in the electrical leakage tripping device base 1 owing to adopted said structure After receiving electric leakage signal, adhesive is installed in the iron core 9 in the coil 3, drives the pull bar that is connected with iron core 9 5 actions, pull bar 5 drive instruction button 4 actions, and instruction button 4 drives alarm switch 6 actions, by The interlock of alarm switch 6 and instruction button 4 realizes warning function, the electric leakage dropout machine that this band is reported to the police Structure, not only simple in structure, cost is low, and breaker does not need again by circuit board having built-in or plug-in wiring board Knapsack is realized warning function, and it is also little to take up room, and action stability is good.

Claims

1, a kind of electrical leakage tripping device with warning, it is characterized in that comprising base (1), case (2), coil (3), pull bar (5), iron core (9), instruction button (4), first back-moving spring (7), second back-moving spring (8) and alarm switch (6), described coil (3) is installed in the base (1); Described pull bar (5) is arranged in the base (1) versatilely; One end of described iron core (9) is fixed on the pull bar (5), and the other end of iron core (9) probes in the described coil (3), and second back-moving spring (8) also is installed on iron core (9); Described alarm switch (6) is installed in the base (1); Described instruction button (4) is arranged in the base (1) by first back-moving spring (7) up and downly, push button shaft (41) both sides of instruction button (4) constitute be used for alarm switch (6) on button (61) second boss (43) realizing first boss (42) of interlock and be used for linking with pull bar (5) realization; Described case (2) cap seal is on base (1).

2, the electrical leakage tripping device of band warning according to claim 1, it is characterized in that on an end of described pull bar (5), constituting the 3rd boss (52), on the other end of pull bar (5), constitute and be stuck in the contact arm (54) that is used to activate circuit breaker operation mechanism outside the described base (1).

3, the electrical leakage tripping device of band warning according to claim 2 is characterized in that being formed with a groove (521) that is used for for second boss (43) scarf in the middle of the bottom of described the 3rd boss (52).

4, the band according to claim 1 electrical leakage tripping device of reporting to the police is characterized in that also constituting in the end end that the 3rd boss (52) was gone up and be close to described pull bar (5) bending plate (51) that is used for fixing iron core (9).

5, according to the electrical leakage tripping device of claim 1 or 4 described bands warnings, it is characterized in that being vertical setting between described bending plate (51) and the described pull bar (5).

6, the electrical leakage tripping device of band warning according to claim 4 is characterized in that offering iron core installing hole (511) on described bending plate (51).

7, the electrical leakage tripping device of band warning according to claim 1 is characterized in that also constituting one in push button shaft (41) bottom of described instruction button (4) is used to install the boss (45) of first back-moving spring (7).