CN102064059B - Leakage breaker - Google Patents
Leakage breaker Download PDFInfo
- Publication number
- CN102064059B CN102064059B CN2010101886558A CN201010188655A CN102064059B CN 102064059 B CN102064059 B CN 102064059B CN 2010101886558 A CN2010101886558 A CN 2010101886558A CN 201010188655 A CN201010188655 A CN 201010188655A CN 102064059 B CN102064059 B CN 102064059B
- Authority
- CN
- China
- Prior art keywords
- circuit
- helical spring
- main circuit
- unit
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Breakers (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Abstract
The invention provides a leakage breaker, which simplifies the electrical connection of a main circuit and a leakage detection circuit and is easy to assemble. The leakage breaker comprises a load side main circuit terminal connected with the main circuit, a current collector equipped on the power supply input end of a printed circuit board for carrying a control power supply circuit, and a helical spring equipped between the load side main circuit terminal and the current collector. By installing a main body cover, a circuit unit composed by clamping the printed circuit board, the helical spring and the current collector through a unit base and a unit cover presses the helical spring towards the direction of the load side main circuit terminal. Therefore, the two ends of the helical spring are respectively in contact with the current collector and the load side main circuit terminal. Then the printed circuit board is supplied with a control power supply from the load side main circuit terminal.
Description
Technical field
The present invention relates to a kind of residual current circuit breaker, it cuts off alternating current circuit when alternating current circuit produces electric leakage or short circuit.
Background technology
Existing residual current circuit breaker consists of following part: framework, and it consists of insulator; Mains side main circuit terminal and load-side main circuit terminal, they are connected with main circuit; The main circuit conducting parts, it is configured in framework, via two main circuit terminals, the electric current of main circuit is flow through; Zero phase sequence currenttransformer, it is run through by this main circuit conducting parts, and the Zero-phase current of main circuit is detected; Printed circuit board (PCB), it forms the electric-leakage detection circuit of the electric leakage of main circuit being differentiated according to the output signal of this zero phase sequence currenttransformer; Circuit unit, it has housing, and this housing is for fixing this printed circuit board (PCB), and the fused mass produced when disconnecting and protect printed circuit board (PCB); And disconnecting mechanism, its output signal according to electric-leakage detection circuit is moved, and main circuit is cut off to the wire harness that the electric-leakage detection circuit utilization consists of electric wire and connector, accept to control the supply (for example,, with reference to patent documentation 1) of power supply from the main circuit conducting parts.
In addition, other existing residual current circuit breaker is configured to, the planar portions that is Primary Conductor with the main circuit conducting parts configures printed circuit board (PCB) abreast, utilize screw and be arranged on the nut on the housing of accommodating printed circuit board (PCB), the shoulder hole that is arranged on the hole on the planar portions of Primary Conductor and be arranged on the control power input of printed circuit board (PCB) is screwed togather, thus, supply with from Primary Conductor to printed circuit board (PCB) and control power supply (for example,, with reference to patent documentation 2).
Patent documentation 1: Japanese kokai publication hei 3-233824 communique (3-5 page, Fig. 1-3)
Patent documentation 2: TOHKEMY 2000-173438 communique (the 3rd page, Fig. 5)
Summary of the invention
But the existing residual current circuit breaker shown in patent documentation 1, utilize a plurality of wire harness and connector to carry out whole inside distributions.Therefore, the receiving space that needs these wire harness and connector.And, because wire harness has pliability, so, when assembling, except the chimeric operation of connector, also need the plastic operation of wire harness, thereby have the time-consuming problem of assembling operation.
In addition, in the situation that the existing residual current circuit breaker that patent documentation 2 is put down in writing, by the shoulder that makes the control power input on Primary Conductor and printed circuit board (PCB), screw togather, can not use and control wire harness and the connector that power supply connects, therefore, compare with the existing residual current circuit breaker shown in patent documentation 1, can dwindle the receiving space of wire harness and connector, also can shorten built-up time.But, because the screw fastening of the shoulder of the control power input on Primary Conductor and printed circuit board (PCB) is laterally, so there is the problem that is difficult to carry out the screw fastening operation.
The present invention proposes for the problem that solves above-mentioned existing residual current circuit breaker, its purpose is, only by the circuit unit that will accommodate printed circuit board (PCB), insert the regulation assembling position of residual current circuit breaker, just can complete the connection of controlling power supply, thereby assembling operation is simplified.
Residual current circuit breaker involved in the present invention is configured to, current-collector is arranged on the control power input of the printed circuit board (PCB) be contained in circuit unit, configure helical spring between this current-collector and main circuit charging part, utilize spring force (elastic force), by this helical spring end, current-collector is pressed, by the other end, the main circuit charging part is pressed, thereby connect, controlled power supply.
The effect of invention
Residual current circuit breaker of the present invention simplifies assembling operation.
The accompanying drawing explanation
Fig. 1 is the front view of the state that main body cover is pulled down of the related residual current circuit breaker of embodiments of the present invention 1.
Fig. 2 means the sectional side view of the residual current circuit breaker that embodiments of the present invention 1 are related.
Fig. 3 means the oblique view of the assembling sequence of the residual current circuit breaker that embodiments of the present invention 1 are related.
Fig. 4 is the exploded perspective view of the circuit unit of the related residual current circuit breaker of embodiments of the present invention 1.
Fig. 5 illustrates the circuit unit inside of the related residual current circuit breaker of embodiments of the present invention 1 and the position relationship of load-side main circuit terminal and zero phase sequence currenttransformer, is the vertical view of observing from load-side.
Fig. 6 is the partial side sectional view of the related residual current circuit breaker of embodiments of the present invention 1.
Fig. 7 is the partial enlarged drawing of Fig. 6.
Fig. 8 is the profile of observing from load-side of the related residual current circuit breaker of embodiments of the present invention 1.
Embodiment
Fig. 1 is the front view of the state pulled down of the main body cover 30 of residual current circuit breaker that embodiments of the present invention 1 are related, Fig. 2 means the sectional side view of the residual current circuit breaker that embodiments of the present invention 1 are related, and Fig. 3 means the oblique view of the assembling sequence of the residual current circuit breaker that embodiments of the present invention 1 are related.In Fig. 1 and Fig. 2, the mains side main circuit terminal 1 be connected with the mains side main circuit and the load-side main circuit terminal 2 be connected with the load-side main circuit, be arranged on by outer frame 3a and on the main base 3 that forms of pedestal 3b.
As shown in Figure 3, the residual current circuit breaker that embodiments of the present invention 1 are related, by main base 3, leakage tripping unit 33, circuit unit 29 and main body cover 30, formed substantially, by being assembled by main base 3 and main body cover 30 clamping leakage tripping unit 33 and circuit unit 29.Main base 3 and main body cover 30 are formed by insulator, form the framework of residual current circuit breaker.In addition, the part of circuit unit 29 is exposed to the framework outside, forms the outline of residual current circuit breaker together with main base 3 and main body cover 30.
As shown in Figure 2, movable piece 5 is connected with mains side main circuit terminal 1 via mains side flexible copper twisted wire 4, when residual current circuit breaker is on-state, by moving contact 6 and fixed contact 7 closures that are arranged on movable piece 5, main circuit current flows into to the coil 9a that makes instantaneous trip apparatus 9 excitations from the fixture 8 that fixed contact 7 is installed, and from bimetal piece terminal 10, via bimetal piece 11, load-side flexible copper twisted wire 12, to load-side main circuit terminal 2, flows into.
To in this residual current circuit breaker, the action of flowing through the overcurrent trip in the situation of excessive main circuit current due to overload or short circuit accident describes.At first, in the situation that flow through the overcurrent of overload etc., owing to flowing through this overcurrent in bimetal piece 11, institute, so that bimetal piece 11 produces Joule heat, makes bimetal piece 11 self start bending, after postponing by the elapsed time, make to be arranged on adjustment screw 13 on the leading section of bimetal piece 11 by trip(ping) bar 14 give as security into, the chain shot of section of mechanism (not shown) is broken away from, thus, make cross bar 15 actions that link with movable piece 5, by failure of current.
In addition, when short circuit accident, 9 moments of instantaneous trip apparatus make trip(ping) bar 14 actions and short circuit current are cut off.In addition, when moving contact 6 and fixed contact 7 disconnects, produce electric arc, but this electric arc eliminates by by arc runner 16, importing explosion chambers 17, and become cooling gas, the outside discharge from exhaust outlet 18 to circuit breaker.
Below, the action when electric leakage accident occurs is described in main circuit.In the situation that electric leakage occurs in main circuit, produce output in the secondary coil of the zero phase sequence currenttransformer 19 run through at load-side flexible copper twisted wire 12, the output signal of the secondary coil of this zero phase sequence currenttransformer 19 is to 20 inputs of electric leakage judging circuit.Electric leakage judging circuit 20 is removed the surge and the noise that comprise in the output signal of the secondary coil of zero phase sequence currenttransformer 19, electric leakage and surge are differentiated, in the situation that electric leakage judging circuit 20 is judged as electric leakage, drive electromagnetic trip device 21, with overcurrent trip in the same manner, make trip(ping) bar 14 actions, circuit is disconnected.
Here, the driving-energy of electric leakage judging circuit 20 and electromagnetic trip device 21, as controlling power supply, from main circuit, supply with, the electric current of controlling power supply, flows into to the control power circuit 25 be formed on the first printed circuit board (PCB) 24 via helical spring 22, current-collector 23 from the load-side main circuit terminal 2 of main circuit.In addition, by the internal control power supply of controlling power circuit 25 step-downs, stabilisation, via flat cable 26, to electric leakage judging circuit 20, supply with.
The housing of the unit pedestal 27 formed by insulator and unit enclosure 28 forming circuit unit 29.Accommodate helical spring 22, current-collector 23 and the first printed circuit board (PCB) 24 in this circuit unit 29.Installation by main body cover 30, circuit unit 29 is depressed to the direction of load-side main circuit terminal 2, make helical spring 22 compressions, utilize the spring force of helical spring 22 self, produce contact on the load-side main circuit terminal 2 that is disposed at helical spring 22 two ends and current-collector 23, carry out the electrical connection from load-side main circuit terminal 2 to the control power supply of controlling power circuit 25.
In addition, electric leakage judging circuit 20 carries on the second printed circuit board (PCB) 32 together with test circuit 31, this test circuit 31 for producing the simulation leakage current when the user of service tests leakage function, and this second printed circuit board (PCB) 32 is housed in leakage tripping unit 33 together with electromagnetic trip device 21.
In addition, in embodiments of the present invention 1, on the first printed circuit board (PCB) 24, only carry and control power circuit 25, will leak electricity judging circuit 20 and test circuit 31 carry on the second printed circuit board (PCB) 32, and printed circuit board (PCB) is divided into to two.This is in order to effectively utilize the confined space in circuit breaker, and each circuit can carry on printed circuit board (PCB) arbitrarily, also can on a printed circuit board (PCB), carry whole circuit.For example, also can carry on the first printed circuit board (PCB) 24 controlling power circuit 25, electric leakage judging circuit 20 and test circuit 31.
Below, the detailed structure of the first printed circuit board (PCB) 24 and helical spring 22 and current-collector 23 is described.Fig. 4 is the exploded perspective view of the circuit unit 29 of the related residual current circuit breaker of embodiments of the present invention 1, Fig. 5 illustrates circuit unit 29 inside of the related residual current circuit breaker of embodiments of the present invention 1 and the position relationship of load-side main circuit terminal 2 and zero phase sequence currenttransformer 19, be the vertical view of observing from load-side, Fig. 6 is the partial side sectional view of the related residual current circuit breaker of embodiments of the present invention 1.In addition, Fig. 7 is the enlarged drawing that the part of the helical spring of Fig. 6 22 and current-collector 23 is amplified.
As shown in Figure 7, the first printed circuit board (PCB) 24, helical spring 22 and current-collector 23 are clamped and fix by unit pedestal 27 and unit enclosure 28.Temporarily be fixed under the state on unit pedestal 27 at the current-collector 23 that is the U word shape by section, the first printed circuit board (PCB) 24 is installed.As shown in Figure 4, the shoulder 24a of the control power input of the end of current-collector 23 and opposition sides helical spring 22 butts and the first printed circuit board (PCB) 24 is carried out to soldering.
In addition, the carrying out of current-collector 23 soldering end with respect to helical spring 22 contact side narrowed width.As noted above, current-collector 23 has connecting portion, this connecting portion have than and helical spring 22 between the little section of the section of contact-making surface, by this connecting portion and printed circuit board (PCB) 24 are carried out to soldering, can make to be difficult to transmit to soldering section from the stress of helical spring 22, thereby improve the soldering reliability.Simultaneously, due to the thermal capacity minimizing of soldering, so also improve braze ability.
As shown in Figure 5, arrange and there is the U word groove 27a that compares bigger width and the degree of depth with the diameter of helical spring 22 on unit pedestal 27.By helical spring 22 is embedded in this U word groove 27a, cover and clamped by unit enclosure 28 together with current-collector 23 and the first printed circuit board (PCB) 24, thus, the whole periphery of helical spring 22 is surrounded by unit pedestal 27 and unit enclosure 28, prevent buckling in the situation of helical spring 22 compressions.
In order effectively to utilize space, zero phase sequence currenttransformer 19 is set to, and its part is clamped between the outline section of 2 U word groove 27a that are arranged on unit pedestal 27, that is, and and between 2 adjacent helical springs 22.
One end of helical spring 22 forms the rectilinear form of specific length, by the line part 22a by this helical spring 22, sandwich to the face and the gap 27b between unit pedestal 27 that contact with helical spring 22 that are arranged on current-collector 23, thereby will not carry out soldering with current-collector 23 or the first printed circuit board (PCB) 24 by helical spring 22, one end of the current-collector of helical spring 22 23 sides can be fixed, prevent that helical spring 22 from coming off from circuit unit 29.
In addition, as shown in Figure 7, the rear side of the face contacted with helical spring 22 at the current-collector 23 of unit enclosure 28 arranges stop part 28b, and this stop part 28b stops current-collector 23.The back side and this stop part 28b butt of the face contacted with helical spring 22 by making current-collector 23, and suppress the distortion of the current-collector 23 that the pressing force by helical spring 22 causes.And, compare the relative soft material of employing by material and the unit enclosure 28, printed circuit board (PCB) 24 and the material of unit pedestal 27 that make current-collector 23, can reduce the stress of the soldering part of current-collector 23 and shoulder 24a.By adopting this mode, can set highlyer by the load of helical spring 22, to improve contact reliability.
Especially, in embodiments of the present invention 1 in related residual current circuit breaker, due to not directly by helical spring 22 and the first printed circuit board (PCB) 24 solderings, so helical spring 22 can be used the material that can obtain high load but be difficult to soldering, such as stainless steel material etc., can be by helical spring 22 miniaturizations.
In addition, usually because stainless steel material conductivity is lower, so not as the energising materials'use, but in the situation that use as helical spring 22 of the present invention, due to employing, to apply voltage minimum for the source power supply of rated voltage 100V, the electric current flow through is also from hundreds of μ A to maximum tens of mA, so even the materials'use stainless steel material of helical spring 22 is also no problem.
In order to improve the contact reliability of load-side main circuit terminal 2 and helical spring 22, need to, in the load that improves helical spring 22, make the contact-making surface stabilisation of load-side main circuit terminal 2 and helical spring 22.As shown in Figure 7, make helical spring 22 and elongated surfaces 2a butt, this elongated surfaces 2a be make load-side main circuit terminal 2 with main circuit, is connected towards side direction in framework, extend and formation.For elongated surfaces 2a, the joint face of load-side main circuit terminal 2 is parallel with the interface of main base 3 and main body cover 30.Thus, can obtain stable contact-making surface.In addition, even in the situation that helical spring 22 be not with load-side main circuit terminal 2 but with mains side main circuit terminal 1 butt, also in the same manner elongated surfaces can be set, make helical spring 22 and this elongated surfaces butt.
In addition, configuration circuit unit 29 on the position of the elongated surfaces 2a butt formed with the joint face of load-side main circuit terminal 2 is extended at helical spring 22, installation by main body cover 30, helical spring 22 is pressed to the elongated surfaces 2a of load-side main circuit terminal 2, thus can be reliably and assembling circuit unit 29 simply.
If configuration circuit unit 29 on the position of the elongated surfaces 2a butt formed with the joint face of load-side main circuit terminal 2 is extended at helical spring 22, circuit unit 29 is positioned at the position that approaches load-side main circuit terminal 2, unit enclosure 28 be configured in the almost identical position of the outline of residual current circuit breaker on.Now, as existing residual current circuit breaker, utilize main base 3 and main body cover 30 to cover in the situation of circuit unit 29, in the framework side near load-side main circuit terminal 2, the duplex of the wall of formation main body cover 30 or main base 3 and the wall of unit enclosure 28, and the inner space loss that increases circuit breaker.In addition, make thus thermal diffusivity worsen.
, as shown in Figure 6, the face of the part of unit enclosure 28 is exposed to face 28a and expose to the outside of circuit breaker in related residual current circuit breaker in embodiments of the present invention 1, with the part of the outline that becomes circuit breaker.Meanwhile, by the parts that make to carry on the first printed circuit board (PCB) 24, approach the inboard of exposing face 28a, can reduce and the circuit breaker outside between thermal resistance, improve the thermal diffusivity that carries the parts on the first printed circuit board (PCB) 24.
In the situation that advance the miniaturization of residual current circuit breaker, the tendency that existence diminishes the distance of the pyrotoxin such as overcurrent trip element and printed circuit board (PCB), thus, exist the temperature that is equipped on the electronic unit on printed circuit board (PCB) to raise, reliability reduces such problem.In embodiments of the present invention 1 in related residual current circuit breaker, because the face 28a that exposes of the circuit unit 29 that will accommodate the first printed circuit board (PCB) 24 exposes from framework as the outline of residual current circuit breaker, so contact with outside atmosphere by unit enclosure 28, the temperature of unit enclosure 28 is descended, also can make the temperature of circuit unit 29 inside descend.Therefore, easily realize the miniaturization of residual current circuit breaker.
In addition, owing to making inner space, to the power source loads direction of residual current circuit breaker, the wall thickness amount with existing main body cover 30 or main base 3 enlarges, so the distance of the pyrotoxin such as overcurrent trip element and the first printed circuit board (PCB) 24 can be enlarged, also reduce the impact from pyrotoxins such as overcurrent trip elements.
As noted above, in embodiments of the present invention 1 in related residual current circuit breaker, because the part of circuit unit 29 becomes the outline of residual current circuit breaker, so circuit unit 29 must be installed reliably, fixing.Fig. 8 is the profile that the load-side of the residual current circuit breaker related from embodiments of the present invention 1 is observed.As shown in Figure 8, the unit pedestal 27 of circuit unit 29 is pressed to upside in figure by the spring force of helical spring 22, and on the other hand, a part that is arranged on the phase partition 30a on main body cover 30 is pressed and stopped and fix.
Even in order to make circuit unit 29 under the state that main body cover 30 is not installed, can with main base 3, not break away from because of the spring force of helical spring 22 yet, the protuberance 27d of hook shape is set in the two sides of unit pedestal 27, part relative with protuberance 27d on main base 3 arranges protuberance 3c, protuberance 27d engages with protuberance 3c, and circuit unit 29 is pressed and stopped.Thus, make assembling operation become easy.
In addition, as shown in Figure 6, on unit pedestal 27, phase partition 27c is set on the extending direction of phase partition 30a, the alternate insulation distance of bimetal piece 11 charging part such as main circuit such as grade is enlarged.Thus, can make the degree of depth of phase partition 30a shoal, not only improve the mouldability as the main body cover 30 of products formed, also improve the installation of main body cover 30.
In addition, due to the configuration of the center at above-mentioned adjacent 2 utmost points zero phase sequence currenttransformer 19, make main circuit load side terminal 2 become symmetric shape with respect to above-mentioned center, so that the shared of parts while making 2 utmost point residual current circuit breaker becomes easy.
Above, the residual current circuit breaker related due to embodiments of the present invention 1 is configured to, current-collector 23 is installed on the control power input 2 of the printed circuit board (PCB) in being contained in circuit unit 29, configuration helical spring 22 between this current-collector 23 and load-side main circuit terminal 2, one end of this helical spring 22 contacts with current-collector 23, the other end contacts with load-side main circuit terminal 2, and utilize spring force to be pressed, so by entering fixing by circuit unit 29 to 2 side pressures of load-side main circuit terminal, thereby without being connected operation, just can form to electric leakage judging circuit 20 and supply with the control power supply connection of controlling power supply, assembling operation is simplified.In addition, the parts that helical spring 22 contacts and presses, can not be also load-side main circuit terminal 2, but mains side main circuit terminal 1 or be configured in the main circuit charging part of the main circuit conducting parts in framework.
In addition, by helical spring 22 directly is not installed on the control power input of the first printed circuit board (PCB) 24, and contact with helical spring 22 via current-collector 23, thereby the stress produced from helical spring 22 can not transmitted to the first printed circuit board (PCB) 24, the soldering on first printed circuit board (PCB) 24 that can prevent from being produced by external stress is broken or the parts breakage.
In addition, by formed the housing of the circuit unit 29 of accommodating the first printed circuit board (PCB) 24 by unit pedestal 27 and unit enclosure 28, accommodate helical spring 22 along the groove that is arranged in unit pedestal 27 and unit enclosure 28 the U word shape on any, become helical spring 22 together with printed circuit board (PCB) by the form of unit pedestal 27 and unit enclosure 28 clampings, and, by helical spring 22 and front ends current-collector 23 contact sides, form the rectilinear form of specific length, this rectilinear form part 22a is clamped in the gap be arranged between unit pedestal 27 and current-collector 23, thus, buckling in the time of can preventing helical spring 22 compression, in addition, can also be under the state that there is no compression, prevent that helical spring 22 from coming off from circuit unit 29.
In addition, due in the situation that by soldering, current-collector 23 is arranged on the first printed circuit board (PCB) 24, the section that the section of the soldering side of current-collector 23 is formed to the part contacted with helical spring 22 is compared little, and, when helical spring 22 compression, current-collector 23 is subjected to displacement side, be provided for stopping the stop part 28b of current-collector 23 on unit pedestal 27 or unit enclosure 28, so the pressing force of helical spring 22 is born by this stop part 28b, thereby can alleviate significantly to the stress of the first printed circuit board (PCB) 24 effects.
In addition, due to being set, current-collector 23 directly helical spring 22 and the first printed circuit board (PCB) 24 are not carried out to soldering, so helical spring 22 also can be used the material that is not suitable for soldering.Because the voltage applied to helical spring 22 is minimum, it is the source power supply of rated voltage 100V degree, and the electric current flow through is tens of mA degree to the maximum, so also can use the stainless steel material that common resistance value is higher, be not suitable as the energising material, by making helical spring 22 use stainless steel material, compare significantly miniaturization with the helical spring of normally used phosphor bronze.In addition, because corrosion resistance is superior, so do not need to form coating as the helical spring of phosphor bronze.
In addition, the part extended by being configured to the private side from the joint face that connects electric wire and crimp type terminal to framework that makes helical spring 22 press load-side main circuit terminal 2, control power supply and supply with, circuit unit 29 is configured on the position adjacent with load-side main circuit terminal 2, the unit pedestal 27 of forming circuit unit 29 housings or the part of unit enclosure 28 are exposed from framework, and the outline of formation residual current circuit breaker, thus, omit usually the main base 3 of formation framework or the wall thickness amount of main body cover 30, can by the circuit breaker miniaturization or by the receiving space of the component parts of circuit breaker, enlarge with this wall thickness amount.
In addition, if making the part of circuit unit 29 exposes from the framework of residual current circuit breaker, because the distance between the outline of the first printed circuit board (PCB) 24 that heat labile electronic unit is installed and residual current circuit breaker approaches, so improve the radiating effect from printed circuit board (PCB) to outside atmosphere, simultaneously, because the distance on the contrary and between the main circuit conducting parts of circuit breaker inside becomes far away, so impact that the heat that can reduce to be produced by the main circuit conducting parts causes, consequently, can reduce the temperature of the first printed circuit board (PCB) 24, can expect the raising of the reliability of electronic unit etc.
In addition, on the direction main body cover 30 is installed, the direction of the load-side main circuit terminal 2 that circuit unit 29 is contacted to helical spring 22 is pressed into, and can, when main body cover 30 is installed, to have formed the state of controlling the power supply connection, circuit unit 29 be fixed thus.
In addition, by the protuberance 27d of hook shape is set on circuit unit 29, protuberance 3c is set on main base 3, and makes their engagings when helical spring 22 semi-pressed state, thus, make circuit unit 29 become temporary transient stationary state, main body cover 30 easily is installed, in addition, due in having formed the state that power supply connects of controlling, so can be before main body cover 30 be installed, the test of the action of leaking electricity etc.
In addition, phase insulation distance in order to ensure circuit breaker inside, alternate partition wall is set usually on main base and main body cover or inserts phase partition, but owing to can't under the state of visualization circuit breaker inside, main body cover being installed, so for the alternate partition wall be arranged on main body cover, in the situation that the component parts of circuit breaker inside exists installation loosening, these parts and alternate partition wall easily interfere, sometimes make the installation of main body cover expend time in, but in embodiments of the present invention 1 in related residual current circuit breaker, integrated by phase partition and circuit unit 29 that partition wall alternate with this is equal to, can improve the installation exercise of main body cover 30 thus.
Claims (10)
1. a residual current circuit breaker, it has:
Framework, it is formed by insulator;
Load-side main circuit terminal, it is arranged on a side of described framework, with the load-side of main circuit, is connected;
Mains side main circuit terminal, it is arranged on the opposite side of described framework, with the mains side of described main circuit, is connected;
The main circuit conducting parts, it is arranged in described framework, with via described load-side main circuit terminal and described mains side main circuit terminal and the electric current of described main circuit is flow through;
Zero phase sequence currenttransformer, it is run through by described main circuit conducting parts, and the Zero-phase current of described main circuit is detected;
The electric leakage judging circuit, it is differentiated the electric leakage of described main circuit according to the output signal of described zero phase sequence currenttransformer;
Printed circuit board (PCB), it carries controls power circuit, and this control power circuit is controlled the power supply from described main circuit and is supplied with to described electric leakage judging circuit;
Circuit unit, it has the whole or a part of housings of being accommodated to described printed circuit board (PCB); And
Disconnecting mechanism, its output signal according to described electric leakage judging circuit is moved, described main circuit cut off,
It is characterized in that, contain in described circuit unit:
The current-collector formed by conductive metal, it is configured in the control power input of described printed circuit board (PCB); And
Helical spring, the one end contacts with described current-collector, any in the main circuit charging part of the other end and described mains side main circuit terminal, described load-side main circuit terminal and described main circuit conducting parts contacts, and this helical spring is for being electrically connected.
2. residual current circuit breaker according to claim 1, is characterized in that,
Described circuit unit has unit pedestal and the unit enclosure formed by insulator, for described helical spring, clamp described helical spring by the groove and the unit enclosure that are arranged on described unit pedestal, and, a described end helical spring and described current-collector contact side is formed to the rectilinear form of specific length, this rectilinear form partly is clipped in the gap be arranged between described unit pedestal and described current-collector.
3. residual current circuit breaker according to claim 1 and 2, is characterized in that,
Described current-collector has connecting portion, and this connecting portion has than the section little with section described helical spring contact-making surface described current-collector, and this connecting portion and described printed circuit board (PCB) carry out soldering.
4. residual current circuit breaker according to claim 3, is characterized in that,
The connecting portion of described current-collector is configured in described current-collector and rear side described helical spring contact-making surface,
Described circuit unit has stop part, and this stop part is connected to described current-collector and the back side described helical spring contact-making surface.
5. residual current circuit breaker according to claim 3, is characterized in that,
Described helical spring material is stainless steel material.
6. residual current circuit breaker according to claim 1 and 2, is characterized in that,
The part of described circuit unit is exposed from described framework.
7. residual current circuit breaker according to claim 1 and 2, is characterized in that,
Described load-side main circuit terminal or described mains side main circuit terminal have the prolongation extended to side direction in framework, and described helical spring contacts with this prolongation.
8. residual current circuit breaker according to claim 1 and 2, is characterized in that,
On described circuit unit, by the one-body molded phase partition that alternate insulation distance is enlarged that arranges.
9. residual current circuit breaker according to claim 2, is characterized in that,
There are a plurality of grooves that are arranged on described unit pedestal,
Described zero phase sequence currenttransformer is clamped between the outline section of 2 grooves in the groove be arranged on described unit pedestal.
10. residual current circuit breaker according to claim 9, is characterized in that,
Described framework consists of main base and main body cover, and described circuit unit has the first protuberance on the face joined with described main base,
Described main base has the protuberance engaged with the first protuberance of described circuit unit under the compressed state of described helical spring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-259989 | 2009-11-13 | ||
| JP2009259989 | 2009-11-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102064059A CN102064059A (en) | 2011-05-18 |
| CN102064059B true CN102064059B (en) | 2013-12-11 |
Family
ID=43999288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101886558A Active CN102064059B (en) | 2009-11-13 | 2010-05-31 | Leakage breaker |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5531894B2 (en) |
| KR (1) | KR101094038B1 (en) |
| CN (1) | CN102064059B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6136438B2 (en) * | 2013-03-26 | 2017-05-31 | パナソニックＩｐマネジメント株式会社 | Earth leakage detection trip unit |
| JP2014191910A (en) * | 2013-03-26 | 2014-10-06 | Panasonic Corp | Leakage detection tripping unit |
| JP6658360B2 (en) | 2016-07-05 | 2020-03-04 | 三菱電機株式会社 | Earth leakage breaker |
| KR101823516B1 (en) | 2016-08-31 | 2018-01-30 | 엘에스산전 주식회사 | Trip mechanism for dc molded case circuit breaker |
| CN106501580B (en) * | 2016-12-23 | 2020-01-03 | 中国西电电气股份有限公司 | Integrated isolation circuit breaker and electronic transformer collector thereof |
| JP7289100B2 (en) * | 2019-07-22 | 2023-06-09 | パナソニックＩｐマネジメント株式会社 | Earth leakage protector and distribution board |
| KR102303549B1 (en) | 2020-01-10 | 2021-09-17 | 엘에스일렉트릭 (주) | Insulation component and magnetic contactor include the same |
| KR102303548B1 (en) | 2020-01-10 | 2021-09-17 | 엘에스일렉트릭 (주) | Cover frame and magnetic contactor include the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400619A (en) * | 2001-07-26 | 2003-03-05 | 三菱电机株式会社 | Leakage breaker |
| CN1581396A (en) * | 2003-07-31 | 2005-02-16 | 富士电机机器制御株式会社 | Leakage breaker |
| CN101335165A (en) * | 2007-06-27 | 2008-12-31 | 富士电机机器制御株式会社 | Residual current circuit breaker |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2738107B2 (en) * | 1990-02-08 | 1998-04-08 | 富士電機株式会社 | Earth leakage breaker |
| JP3275441B2 (en) * | 1993-04-22 | 2002-04-15 | 三菱電機株式会社 | Earth leakage breaker |
| JPH0758432A (en) * | 1993-08-20 | 1995-03-03 | Cmk Corp | Printed wiring board |
| JP3361574B2 (en) * | 1993-09-20 | 2003-01-07 | 株式会社日立製作所 | Earth leakage breaker |
| JP2000173438A (en) * | 1998-12-08 | 2000-06-23 | Mitsubishi Electric Corp | Earth leakage breaker |
| JP3846528B2 (en) * | 1999-07-23 | 2006-11-15 | 三菱電機株式会社 | Earth leakage breaker |
| JP2001176586A (en) * | 1999-12-21 | 2001-06-29 | Citizen Electronics Co Ltd | Sounding element with connector |
| JP5117335B2 (en) * | 2007-12-27 | 2013-01-16 | アルプス電気株式会社 | Compound operation type input device |
| KR200442853Y1 (en) | 2008-06-17 | 2008-12-17 | 주식회사 대륙 | Three-phase breakers with integrated current transformer |
-
2010
- 2010-05-31 CN CN2010101886558A patent/CN102064059B/en active Active
- 2010-10-04 JP JP2010224899A patent/JP5531894B2/en active Active
- 2010-11-10 KR KR20100111453A patent/KR101094038B1/en active IP Right Grant
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400619A (en) * | 2001-07-26 | 2003-03-05 | 三菱电机株式会社 | Leakage breaker |
| CN1581396A (en) * | 2003-07-31 | 2005-02-16 | 富士电机机器制御株式会社 | Leakage breaker |
| CN101335165A (en) * | 2007-06-27 | 2008-12-31 | 富士电机机器制御株式会社 | Residual current circuit breaker |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2000-173438A 2000.06.23 |
| JP特开平3-233824A 1991.10.17 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102064059A (en) | 2011-05-18 |
| KR101094038B1 (en) | 2011-12-19 |
| JP2011124217A (en) | 2011-06-23 |
| JP5531894B2 (en) | 2014-06-25 |
| KR20110053193A (en) | 2011-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102064059B (en) | Leakage breaker | |
| US6851955B2 (en) | Assembly structure of adapter having conductive terminal with metal extending portion for conducting with PCB | |
| US9442166B2 (en) | Battery monitoring assembly having battery monitor module and cable for connection to a shunt of the module | |
| CN101587800B (en) | Contact device for high resistive power contactor | |
| CN101123152A (en) | Switching apparatus | |
| CN113613940A (en) | Circuit board for electric vehicle charging station | |
| CN107318270A (en) | Charging connector | |
| CN107607215A (en) | Temperature survey component, temperature measuring equipment and electric appliance component | |
| KR100904958B1 (en) | Interior wiring device and electrical appliance | |
| EP3846294A1 (en) | Terminal assembly for a charging connector including an improved thermal monitoring | |
| CN110600329B (en) | Connection structure for electronic device, wiring connector, and circuit breaker | |
| CN101783269A (en) | Repulsive clamping static contact structure of low-voltage circuit breaker | |
| CN103098323B (en) | Spark gap arrangement comprising two preferably flat electrodes fixed in a housing at a distance from one another | |
| CN114709659A (en) | Power contact pin cooling module, charging connector | |
| CN209843635U (en) | Fast wiring structure for circuit breaker | |
| CN116745875A (en) | Circuit breaker, switchboard and coil unit | |
| CN105977686A (en) | Electrical T-shaped wire connector | |
| JP2009021053A (en) | Connection failure detecting device of plug-in type terminal part | |
| CN216250557U (en) | Terminal subassembly and air conditioner | |
| CN118604399A (en) | Measuring device for an electrical switching device | |
| CN219370941U (en) | Leakage release module | |
| CN114600217B (en) | Contact switch and connection auxiliary pin | |
| CN221008859U (en) | Intelligent circuit breaker with wire inlet and outlet structure | |
| CN216311700U (en) | Circuit breaker | |
| EP3910742B1 (en) | A compact wiring terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |