CN104795809A

CN104795809A - Protection device against temporary overvoltages and self-protected electrical assembly comprising such a protection device assembled with a circuit breaker

Info

Publication number: CN104795809A
Application number: CN201510109083.2A
Authority: CN
Inventors: G·拉塞
Original assignee: Legrand SA; Legrand SNC
Current assignee: Legrand SA; Legrand SNC
Priority date: 2014-01-21
Filing date: 2015-01-21
Publication date: 2015-07-22
Anticipated expiration: 2035-01-21
Also published as: EP2897151A1; RU2678831C2; EP2897151B1; FR3016730B1; RU2015101736A3; PL2897151T3; FR3016730A1; RU2015101736A; ES2729409T3; CN104795809B

Abstract

The invention relates to a protection device (300) against especially temporary overvoltages from the air. The protection device includes a box body (310). The box body accommodates at least one rheostat connected to a thermal break connection device, a discharger, and wires (F1, F2, F3, FN) connected to the rheostats and the discharger. Part of the wires is exposed outside the box body so as to be connected to terminals of a breaker. According to the invention, the protection device is provided with a pedestal (410), made from electrical insulation material, outside the box body. The pedestal is separated from the box body, and is provided with retaining parts and assembling parts (415, 415A, 417, 417A), wherein the retaining parts fit the wires to keep the wires in set positions, and the assembling parts enable the pedestal to be fixed on the breaker. The invention also relates to a self-protected electrical assembly, which includes the above protection device and the breaker that are assembled to each other through one of side main surfaces.

Description

The protective device of anti-transient state overvoltage and there is the automatic protection electric component with this protective device of assembling circuit breaker

Technical field

The present invention relates to the field of lightning arrester module on the whole.

The invention particularly relates to anti-(resisting)-be especially derived from air-protective device of transient state overvoltage; this protective device comprises casing; this casing is provided with two parallel side direction first type surfaces and accommodating and hot break connecting mechanism at least one rheostat, the discharger that are associated and be connected respectively to the electric wire of each rheostat and this discharger; in two side direction first type surfaces of casing one of this electric wire, appears at the outside of casing to engage with the terminal of circuit breaker to make a part for described electric wire.

The invention still further relates to automatic protection type electric component, this electric component comprises protective device and the circuit breaker of aforesaid anti-transient state overvoltage, and this protective device and this circuit breaker are assembled each other by their a side direction first type surface.

Background technology

Automatically protect electric component from the known one of file EP0717425, it comprises by side direction first type surface differential protection module assembled with one another and breaker module.

In the assembly; the electric wire of the wiring of guarantee differential protection module and breaker module is hard wires; wherein the appearing at the partially-formed of casing outside and be arranged to be inserted in the box opening of breaker module of this differential protection module, to provide the path arriving corresponding electrical terminals.These electric wires are covered by lid, to ensure their protections for outside.

High and their shaping of this hard wires cost does not ensure the accurate location of relative differential protection module.Thus the line of this module of more difficult enforcement and circuit breaker.For the ease of line, the length of these electric wires may increase, so that occurs the risk of the residue overvoltage being harmful to the good operation automatically protecting electric component.

And; known automatic protection electric component comprises two different modules (block); namely; be mutually related breaker module and lightning arrester module; wherein; implement the electric wiring between these two modules by common hard wires, this electric wire is exited breaker module by casing lower surface and is entered the casing of lightning arrester module by the opening be arranged on described casing upper surface.

This wiring is not desirable.It needs longer electric wire, and this exists the risk occurring the residue overvoltage of the good operation being harmful to circuit breaker-lightning arrester module afterwards.And this wiring is difficult to make automatically to protect electric component to conform to current standards, the total length of this standard-required line between phase terminals and main side is less than 0.5 meter, settles electric component betwixt.

Summary of the invention

Invention thus proposes a kind of protective device improving aforesaid drawbacks.

More specifically; according to the invention provides one protective device as defined in the preamble which; it has the substrate (base) of the electrical insulating material separated with described casing in the outer setting of casing; and being provided with on the one hand matches with the holding device be held in a predetermined position by each electric wire with described electric wire, is provided with the build-up member for being fixed by described pedestal on-board the circuit breaker on the other hand.

And advantageously in protective device according to the invention, this pedestal can reduce to maximum program the length of the electric wire between the rheostat of protective device and the terminal of circuit breaker, and this can be avoided occurring residue overvoltage and the requirement of coincidence method national standard NF 15/100.This pedestal also assures that and electric wire is remained on predetermined exact position, and this allows to use softer, that cost is low electric wire.This pedestal provides multiple may location in addition, for the lead-out terminal by adaptive for electric wire relative breaker.In the mill, electric wire holding member is arranged in the pedestal according to protective device of the present invention, is conducive to the wiring (line) between described protective device and relative breaker.Due to the present invention, productivity ratio can be ensured.And pedestal also assures that the protection of electric wire for outside, and forms the insulation shell of electric wire.

Unrestricted and the favourable further feature of protective device according to the invention is as follows:

-described holding member is arranged to the free end of electric wire to remain on the circuit that aturegularaintervals opens;

-described pedestal has substrate plate and wall, and described wall raises perpendicular to this substrate plate and has otch, and this otch is used for accommodating described electric wire, forms described holding member to make them;

-described pedestal has substrate plate, wherein cut out at least one flexible tongue, this flexible tongue is positioned at free end on the edge of described substrate plate and pull bar links, this pull bar is perpendicular to described tongue piece and extend in the both sides of this tongue piece, each pull bar is provided with the grasp opening be positioned in a part for pull bar, this part extends in the outer surface side of described substrate plate and links with hook, and this hook makes the pull bar part of the inner surface side being positioned at described substrate plate extend;

The build-up member of-described pedestal is that sour jujube connects (ratchet-type connection) parts;

-described build-up member comprises pillar, and this pillar has ratchet on free end, and at least one pair of pillar is positioned on the edge of this pedestal, forms two parallel branch in fork-shaped portion, and two outer side edges in this fork-shaped portion support the ratchet along opposite direction orientation;

-described pedestal is the integral piece (monomer part) be made up of moulding material (molded plastic material);

-being provided with the lid of electrical insulating material, this lid is penetrated by through hole, assembles mutually with pedestal, and to form the line cover of closed described electric wire, the free end of electric wire stretches out this line cover by the through hole of lid, to join on the terminal of circuit breaker;

-described lid supports the holding device of described electric wire on its inner surface towards pedestal;

The holding device of-described lid comprises wall, and this wall vertically extends from the shut of described lid and this shut;

-described lid has additional holes (complementary apertures), and this additional holes is passed through by the build-up member of pedestal, is fixed on-board the circuit breaker by pedestal;

-described lid and pedestal comprise sour jujube relay part, and this sour jujube relay part is suitable for jointly coordinating to assemble this lid and pedestal;

-described pedestal comprises opening, and the top of instrument arrives described sour jujube relay part, to dismantle lid and pedestal through this opening;

-described pedestal comprises opening, and the top of instrument arrives assembling device described in some, to be pulled down from circuit breaker by pedestal through opening; With

-described lid is the integral piece be made up of the plastic material being molded.

Present invention also offers one and automatically protect electric component; it comprises protective device and the circuit breaker of foregoing transient state overvoltage; this protective device and this circuit breaker are assembled each other mutually by their one of main lateral surface; the pedestal of described protective device is arranged on the inner surface of this circuit breaker; separate mutually with the casing of described protective device; with the main lateral surface making the electric wire be bonded on each rheostat stretch out the casing of described protective device; be associated with circuit breaker thus, the phase terminal of this electric wire connecting breaker and neutral terminal.

Accompanying drawing explanation

Following reference accompanying drawing will make understand content of the present invention better and how to implement the present invention with the detailed description that mode for example and not limitation provides.In the accompanying drawings:

-Fig. 1 is the schematic perspective view of electric component according to the invention;

-Fig. 2 is the surface view of Fig. 1 assembly;

-Fig. 3 is the circuit diagram of Fig. 1 assembly;

-Fig. 4 is the schematic perspective view of the over-pressure safety device of Fig. 1 assembly;

-Fig. 5 is the surface view of the protective device of Fig. 4;

The different views that-Fig. 6 is protection to 11 and maintains from the line cover of the protective device of Fig. 4;

-Figure 12 is the schematic perspective view of the line cover that the protective device Sum decomposition of Fig. 4 represents,

-Figure 13 and 14 is the three-dimensional icon of two opposite sides of the pedestal of the line cover of Fig. 6;

-Figure 15 and 16 is the three-dimensional icon of two opposite sides of the lid of the line cover of Fig. 6;

-Figure 17 is identical with Fig. 4 but without the view of lightning arrester housing;

-Figure 18 is the view identical with Figure 17, unprotect and keep coming the end button cover envelope portion of electric wire of self-protecting device, and without the casing part of this holding device, with the preferred implementation of display module interface agency;

-Figure 19 be the protective device casing rear portion of Figure 17 look up three-dimensional view;

-Figure 20 is the three-dimensional view of 3/4ths parts below of the casing of Figure 19, and another of the accommodating modular interface mechanism of this casing simplifies execution mode;

-Figure 21 be Figure 20 look up three-dimensional view;

-Figure 22 is 3/4ths parts below of the casing of the protective device of Figure 17 and inner schematic perspective view, the preferred implementation of the accommodating modular interface mechanism of this casing;

-Figure 23 is the schematic perspective view of the decomposition of the preferred implementation of the modular interface mechanism of Figure 22;

-Figure 24 and 25 is that the assembling stereogram looked over from opposed both sides of the mechanism of Figure 23 shows;

-Figure 26 runs the end view of the mechanism of the Figure 23 in configuration for being assembled in difference to 29;

-Figure 30 is the three-dimensional schematic views of Fig. 1 electric component, side-looking transient state crosses pressure retaining device, wherein protective device casing front part and low portion is decomposed and the casing part of lightning arrester housing is connected to electrical network, to show the over-voltage limitation means of described lightning arrester housing;

-Figure 31 is the partial cross sectional views of Figure 30;

-Figure 32 is the cross-sectional detail views of the actuator be linked with the over-voltage limitation means being shown in Figure 31;

-Figure 33 is the view identical with Figure 30, and wherein the casing of lightning arrester housing is opened, and lightning arrester housing is disconnected by with electrical network;

-Figure 34 is the partial cross sectional views of Figure 33;

-Figure 35 is the cross-sectional detail views of the actuator be linked with the over-voltage limitation means be shown in Figure 33;

-Figure 36 is the schematic perspective view of the electric component of Fig. 1, side-looking transient state crosses pressure retaining device, wherein circuit breaker is closed, and line cover and protective device casing are removed, to show the first execution mode of lightning arrester housing and the housing lock shaft on home;

-Figure 37 is the cross section view of the region B of Figure 26;

-Figure 38 is the schematic perspective view of the first execution mode of the engaged circuit breaker of Fig. 1, modular interface mechanism and electric component housing lock shaft,

-Figure 39 is the view identical with Figure 36, has the first execution mode of the circuit breaker of disconnection and the housing lock shaft in approximated position;

-Figure 40 is the cross section view of the region B of Figure 39;

-Figure 41 is the schematic perspective view of the first execution mode of the engaged circuit breaker of Fig. 1, modular interface mechanism and electric component housing lock shaft,

-Figure 42 looks three-dimensional schematic views in the end of the electric component of Fig. 1, and wherein circuit breaker is engaged, and line cover and protective device casing are removed, to show the second execution mode of lightning arrester housing and the housing lock shaft on home;

-Figure 43 is the schematic perspective view of the second execution mode of the engaged circuit breaker of Fig. 1, modular interface mechanism and electric component housing lock shaft,

-Figure 44 is the view identical with Figure 42, has the second execution mode of the circuit breaker of disconnection and the housing lock shaft in approximated position;

-Figure 45 is the schematic perspective view of the second execution mode of the circuit breaker of the disconnection of Fig. 1, modular interface mechanism and electric component housing lock shaft.

Embodiment

As Fig. 1, shown in 2 and 3, electric component 1 comprise opposing-be especially derived from air-protective device 300 of transient state overvoltage and circuit breaker 200.By modular interface 100, protective device 300 electrically and is mechanically joined on circuit breaker 200.

Circuit breaker 200 itself is conventionally known and in being not described in detail herein.

Substantially, circuit breaker 200 has casing, and the accommodating input and output electric terminal connected by circuit of this casing, this circuit is opened by open and close device 230.

The casing of circuit breaker 200 is roughly parallelepiped, and has two parallel main lateral surface 211, is provided with level trough 202 to be assembled to rear surface on the guide rail (not shown) of distribution box or cabinet, front surface and two opposed upper and lower lateral surfaces.Described forward and backward, upper and lower surface is all perpendicular to the main lateral surface of casing.

The casing of circuit breaker 200 has lock 201 on rear surface, and circuit breaker 200 can lock on the guide rail of distribution box or cabinet by this lock.More specifically, herein, the casing of circuit breaker 200 is equipped with four lock 201: two tops at casing (see Fig. 2) and two bottoms at casing (see Figure 36,38,42 and 44).Each lock 201 presents the shape of plate, and the upright guide rail (invisible) that this plate is corresponding to casing is gone up and slides between the locking and unlocking position.Be provided with elastic reseting part (invisible in accompanying drawing), it is formed usually together with each is locked, and trends towards making each lock be returned to latched position.The end of each lock 201 appears in the groove 202 of casing rear surface, to match with the guide rail of distribution box or cabinet in the latched position of lock.Another opposite end of each lock 201 appears under the upper or lower surface of the upper surface of the casing of circuit breaker 200.This opposite end of each lock 201 is provided with opening 201A, and this opening allows the described elastic reseting part of opposing and each lock 201 guided into the outside of groove 202 from its latched position to unlocked position, exits assemble with the corresponding of guide rail to make lock 201.

The front surface of the casing of circuit breaker 200 is entreated on region wherein has projection, by this projection, when on the guide rail that circuit breaker is positioned in such as power distribution cabinet, the front portion of casing is emerging in outside this plug-in unit baffle plate by the perforate of plug-in unit baffle plate (not shown).This front portion comprises front surface and vertically extending two lateral surfaces opposed on the front surface of circuit breaker.The lever be attached on shared joystick 230 protrudes from the front surface of front portion.These levers belong to the open and close device of circuit breaker 200, and this open and close device activates by joystick 230, with the circuit (see Fig. 3) of the input and output terminal of manual unlocking and closed connecting breaker 200.As illustrated in fig. 1 and 2, when circuit breaker 200 engages (closing of circuit), its lever and joystick 230 are lifted.Otherwise when circuit breaker 200 disconnects (circuit is opened), lever and joystick 230 are lowered (see Figure 39 and 41).

Circuit breaker 200 means the integral multiple that the width on two side direction first type surfaces 211 that its casing presents equals base module M for modular unit.Herein, according to represented embodiment, circuit breaker 200 be three-phase breaker (namely, comprise three phase terminal L1, L2, a L3 and one neutral terminal N), its casing has four modules (its length equals four times of base module M), and each module is the position, a pole of circuit breaker 200.Be provided with position, the pole opened/closed lever of circuit breaker 200 in addition, have four levers to be attached on joystick 230 thus.

The upper surface of the casing of circuit breaker 200 comprises can close to the opening of the input terminal of (access, operation) circuit breaker 200, and the lower surface of the casing of this circuit breaker comprises can close to the opening of the lead-out terminal of circuit breaker 200.As Fig. 3 schematically shows; from phase electrical wire L1, L2, L3 of electrical network and the neutral wire N (not shown) input terminal being connected to circuit breaker 200 close to opening by casing upper surface, and carry out electric wire F1, F2, F3, FN lead-out terminal being connected to circuit breaker 200 close to opening by casing lower surface of self-protecting device 300.And the front surface of the casing of circuit breaker 200 has the close opening of the input and output terminal provided circuit breaker 200.

As Fig. 1, shown in 2,4,5,12 and 17, transient state over-pressure safety device 300 has module 310, and this module has: two parallel side direction first type surface 311D, 313; Rear surface, this rear surface is provided with level trough 311G to be assembled on the guide rail (not shown) of distribution box or cabinet; Front surface 312A; Opposed two transversely surperficial 311B, 312B and lower surface 311B, 312B.Described rear surface, front surface, upper surface and lower surface are all vertical with the side direction first type surface of this module.The width of module 310 between two side direction first type surface 311D, 313 is in four times of width equaling base module M herein.The front surface 312A of the module 310 of protective device 300 entreats on region wherein has projection; by this projection; when on the guide rail that circuit breaker is positioned in such as power distribution cabinet, front portion 312 ' A is emerging in outside this plug-in unit baffle plate (not shown) by the perforate of plug-in unit baffle plate.Front portion 312 ' A has front surface 312A and the lateral surfaces in vertically extending two opposition of the front surface 312A of the module 310 of protective device 300.

Especially as shown in the circuit diagram in figure, module is such casing, at least one rheostat 333 that the accommodating and hot connection breaking parts of this casing 335,700 are associated, discharger E and be connected respectively to electric wire F1, F2, F3, FN of each rheostat 333 and discharger E, a part for described electric wire appears at casing outside, to join lead-out terminal L1, L2, L3 of circuit breaker 200 to.

According to shown embodiment, accommodating three rheostats 333 of module 310, described rheostat is connected to phase terminal L1, L2, L3 of circuit breaker 200 at output, and is connected to the neutral terminal N of circuit breaker 200 at input, and this neutral terminal N is connected to the discharger E of ground connection.

Module 310 is in comprising the casing rear portion 311 (see Figure 17) assembled by connecing (ratchet-type engages) with casing front part 312 sour jujube herein.

The casing rear portion 311 of module 310 illustrates independently in Figure 19 is to 22, and it has the bottom 311A of the rear wall forming module 310, and the outer surface of module 310 forms the rear surface being provided with groove 311G.Bottom 311A is defined by four sidewalls 311B, 311D perpendicular to 311A bottom this, and described four walls are the upper wall 311B and lower wall 311B that are parallel to each other and are parallel to each other and the lateral sidewall 311D of two opposition perpendicular to upper and lower wall 311B.

The upper and lower wall 311B of this casing rear portion 311 is provided with ratchet 311E and the caulking groove 311E being suitable for matching with the compensation device of casing front part 312 near free end.

The casing front part 312 of module 310 illustrates in figure 18 independently, and it has the antetheca 312A of the antetheca forming module 310, and the outer surface of this antetheca forms the front surface 312 of module 310.This antetheca 312A also forms front portion 312 ' A and limits the holding part 320 recessed relative to the front surface of described module at the middle section of module 310.This holding part 320 is for holding three lightning arrester housings 330 (see Fig. 4).It is defined by the lateral sidewall of the side of opposed lower wall 315 and upper wall 314, closed front part 312 ' A and the diapire 312C that closes described holding part 320 rear portion.The lower wall 315 of holding part 320 and upper wall 314 have groove 315A, 314A for assembling described lightning arrester housing 330, and this lightning arrester housing is inserted into/extracts this module 310.Lower wall 315 and upper wall 314 also comprise opening 315C, are engaged the plug 801 and 802 of described lightning arrester housing 330 by opening 315C, with realize its in module 310 electrically and mechanical connection (see Figure 30 and 33).And, the diapire 312C of holding part 320 has opening 312D (see Figure 17 and 18), and the profile of this opening is suitable in this opening 312D, insert location (mistake proofing) binding post 337 (see Figure 31 and 34) being arranged on lightning arrester housing 330 rear portion when lightning arrester housing 330 is inserted in the holding part 320 of module 310.Like this, in module 310, insert the lightning arrester housing that protective device 300 is suitable for model or specification is ensure that to assembler or user.

Finally, casing front part 312 has the upper wall and lower wall 312B that extend back perpendicular to antetheca 312A.The upper and lower wall 312B of this casing front part 312 is provided with the sour jujube edge fit edge 312E and scarfing slot 312E that are suitable for matching with the ratchet 311E of the upper and lower wall 311B of this casing front part 312 and scarfing slot 311E near its free edge, to assemble described casing front part 312 and the rear portion 311 (see Fig. 4 and 18) of this module 310.

As Figure 30,31,33,34 is clearly shown that, each lightning arrester housing 330 include accommodating rheostat 333 (over-voltage limitation means) and hot break connecting mechanism 335,700 casing 331.

The casing 331 being roughly each lightning arrester housing 330 of parallelepiped all has two parallel main lateral surface, rear surface, front surface and two upper and lower lateral surfaces of opposition.Front surface entreats region to have outstanding front portion wherein, this front portion supporting joystick 332.This front portion has front surface and opposed two lateral surfaces, described two lateral surfaces one upper and one extend at lower and perpendicular to casing 331 front surface.Joystick 332 has Liang Ge branch, and the front surface both sides of their face portion parts extend from the middle section of this front portion.Action bars 332 also has the grip extended perpendicular to described Liang Ge branch, and this grip is against the transversely surface of the front portion of casing 331.Joystick 332 is in matching with the profile on the front surface of the front portion of the casing 331 of lightning arrester housing 330 and transversely surface herein.

As Fig. 1 more specifically illustrates, when three lightning arrester housings 330 are assembled in the accommodation holding part 320 of module 310, align with the front portion 312 ' A of the front surface 312 of module 310 in the front portion of the supporting joystick 332 of each lightning arrester housing 330, with on the guide rail that module 310 is positioned in distribution box or cabinet time, the front portion making these align is through plug-in unit baffle plate and appearing at outside plug-in unit baffle plate (not shown).

As Fig. 3,30,31, shown in 33 and 34, the rheostat 333 of each lightning arrester housing 330 presents the form of the chemical combination block of the metal oxide of such as zinc oxide.This block has assembling pawl 333D and voussoir in the interior arrangement 331D of the casing 331 of housing.Block 333 also has pawl 333A, 333B of electric conducting material, so that rheostat is connected to electrical network.These conductor pawls 333A contacts with the lower wall 331C conducting strip 800 out of the casing 331 from housing, and to form plug 801, this plug is set up with phase electrical wire F1, F2, F3 of module 310 and is electrically connected.Other 333B in these pawls are fastened in a pincerlike part, this pincerlike part with keep in touch from the upper wall conducting strip out of the casing 331 of housing, to form plug 802, the electrical connection with conductive plate 500 set up by this plug, and this conductive plate 500 is electrically connected to the neutral wire FN of module 310.

Each rheostat 333 has non-linear limit voltage/current characteristic.Exceed some terminal voltage threshold value of rheostat 333, the impedance of rheostat 333 reduces, can discharge the electric current that overvoltage causes.When voltage reaches acceptable normal level, the impedance of rheostat 333 becomes the value of original state again.For significantly deflection current, this rheostatic terminal voltage raises.The life span of this rheostat 333 limits according to load, the hydraulic performance decline of ceramic module, and the rheostatic leakage current on original state increases, and this rheostatic thermal resistance reduces.This is the reason arranging thermal cutoff devices 335,700 in each lightning arrester housing 330; when exceeding the thermal capacity of rheostat 333; thermal cutoff devices 335,700 disconnects the connection of rheostat 333 and electrical network; electrical network is bonded to protective device 300, with avoid with this thermal capacity exceed the infringement be associated.

As Figure 30,31, shown in 33 and 34, each thermal cutoff devices comprises fusible connecting portion 335 (presenting with the form of the dihedral plate of fusible material), and this is fusible, and connecting portion keeps insulation slide block 700 at link position (see Figure 30 and 31) and against extension spring (invisible in figure).Slide block 700 is slidedly assemblied on chute 336, extension spring tensioning between the standing part of the casing 331 of slide block 700 and lightning arrester housing 330, to trend towards making slide block 700 slide into connection breaking position (see Figure 33 and 34) from its link position, in this connection breaking position, the insulation wall 710 of slide block 700 is inserted between the conduction pawl 333A of the rheostat 333 be associated and the conducting strip (reed) 800 engaged with phase electrical wire, to open the connection that circuit also disconnects the circuit rheostat 333 engaged with it.Fusible connecting portion 335 is placed into and contacts with the conducting tongues 333C from rheostat 333, with aging with when exceeding its thermal capacity at rheostat, cause fusing and the release of slide block 700 by conducting tongues 333C to the heat that fusible connecting portion 335 conducts, wherein slide block 700 spring that is stretched pulls to its connection breaking position.

The module 310 of protective device 300 and circuit breaker 200 are connected to each other and are assembled by their side direction first type surface.In order to their assembling, accommodating two hooks 340 of module 310, described hook appears at (Figure 4 and 5) outside module 310 through associated side first type surface 313, and the associated side first type surface of circuit breaker 200 is provided with window (invisible in figure) accordingly.Hook 340 is activated by lock 341, and this lock allows to lock the hook 340 engaged with circuit breaker 200.

As shown in Fig. 1,2,4,5; protective device 300 has the line cover 400 of electrical insulating material in the outside of module 310; this line cover closes electric wire F1, F2, F3, FN; the side direction first type surface 311B, 313 of described electric wire in base portion office through module 310 exposes in the outside of module 310; this module 310 is assembled on circuit breaker 200 by described side direction first type surface, to be electrically coupled to the lead-out terminal of circuit breaker 200.

This line cover 400 has the pedestal 410 (see Fig. 6 and 9) of being closed by lid 420.This line cover is set on the inner surface of circuit breaker 200, to make the outer surface of its lid 420 against the inner surface of circuit breaker 200, and the outer surface of its pedestal 410 is extended on the inner surface extension of the module 310 of protective device 300.And the electric component 1 be made up of circuit breaker 200 and protective device 300 is provided with the line cover 400 (see Fig. 1 and 2) of the one block form of cuboid substantially.

Free end E1, E2, E3, EN of described electric wire F1, F2, F3, FN expose line cover 400, to engage the lead-out terminal (see Figure 4 and 5) of circuit breaker 200 through the aperture 421 of lid 420.

Advantageously, pedestal 410 and the module 310 of protective device 300 be separate (as Fig. 5 more specifically shown in, gap E is there is) between pedestal 410 and module 310, this pedestal is provided with and described electric wire F1 on the one hand, F2, F3, FN coordinates with by each electric wire F1, F2, F3, the holding member 412A that FN is held in a predetermined position, 412B, 412C, 412D, 414A, 414B, 414C, 414D, be provided with the build-up member 415 for being fixed on by described pedestal 410 on circuit breaker 200 on the other hand, 415A, 417, 417A, 418, 418A is (see Fig. 6, 7, 9, 10, 13, 14).

Holding member 412A, 412B, 412C, 412D, 414A, 414B, 414C, 414D of described pedestal 410 are arranged to free end E1, E2, E3, EN of electric wire F1, F2, F3, FN to remain on (see Fig. 4) on circuit A with isolated position regularly.

Pedestal 410 advantageously farthest can also reduce the length of the rheostat 333 of protective device 300 and electric wire F1, F2, F3, FN between terminal L1, L2, L3, LN of circuit breaker 200; this can be avoided occurring residual overpressure, and the regulation of coincidence method national standard NF 15/100.Pedestal 410 also ensures electric wire F1, F2, F3, FN to remain on predetermined exact position, and this allows to use soft and nonrigid, that cost is low electric wire.

As Fig. 6-14 illustrates especially, pedestal 410 is the integral piece be molded as by hard plastic material, the substrate plate 411 that it has in this case rectangular profile and the wall 412,413,414 raised perpendicular to substrate plate 410 from the inner surface 411A of this substrate plate 411.

These three wall 412-and lateral sidewall and antetheca-determine substrate plate 411, to form the rectangular box body be opened on a surface together with substrate plate 410 in three adjacent side upper bounds.Another wall 413-and rear wall-settle along 1/4th sides of whole substrate plate 411 and plate body border certain distance ground.The inside in other wall 414-and inwall-the be placed in space defined by the lateral sidewall 412 of pedestal 410, antetheca 412 and rear wall 413.

Lateral sidewall 412 (the side direction first type surface 313 of the module 310 of protective device 300 is settled faced by this) and inwall 414 comprise otch 412A, 412B, 412C, 412D, 414A, 414B, 414C, the 414D with rounded base, and this otch accommodating described electric wire F1, F2, F3, FN are to form described holding member.As Figure 12 clearly show that, electric wire F1, F2, F3, FN of exposing module 310 enter pedestal 410 by otch 412A, 412B, 412C, 412D of the lateral sidewall 412 corresponding with pedestal 410, then they in pedestal 410 along the path especially determined by otch 414A, 414B, 414D of inwall 414.Neutral wire FN is along the longer path determined by otch 414D, and then by descending, phase electrical wire F1 is along the path set by otch 414A, and phase electrical wire F2 is along the path set by otch 414B.Phase electrical wire F3 is along the comparatively short path arranged by inwall 414C, and described electric wire F3 is pressed against on inwall 414C.

As Figure 15 and 16 clearly show that, lid 420 is the integral piece be molded by hard plastic material, and it presents the form of rectangular closed plate, and its size roughly corresponds to the size of the inner space defined by the lateral sidewall 412 of pedestal 410, antetheca 412 and rear wall 413.As shown in Fig. 6,8 and 9, this shut 420 be positioned on the inwall 414 of described substrate 410 this substrate 410 lateral sidewall 412, between antetheca 412 and rear wall 413, so that otch 412A, 412B, 412C, 412D of the wall of closed base 410, so that electric wire F1, F2, F3, FN are locked in otch.This shut 420 has the lateral aperture 421 (see Fig. 4 and 15) of the alignment of in this case microscler (Long Circle), free end E1, E2, E3, EN of described electric wire F1, F2, F3, FN are exposed from line cover 400 by this aperture 421, to engage (see Figure 4 and 5) with the lead-out terminal of circuit breaker 200.

Shut 420 turns at it holding member inner surface 420A of pedestal 410 also supporting described electric wire F1, F2, F3, FN.These holding members comprise wall 424,424A, 424B, 424D, and these walls vertically extend with it from the inner surface 420A of the shut 420 of described lid.

The wall 424 of lid is enclosed in the opening (see Fig. 8 and 14) corresponding to the lateral sidewall 412 of pedestal 410 directly over described otch 412A, 412B, 412C.Other wall 424A, 424B, 424D of lid guide and keep electric wire F1, F2, F3, FN to be in kerf bottom corresponding to pedestal 410.

Lid 420 and pedestal 410 comprise the sour jujube relay part being suitable for overall co-ordination, to assemble lid and pedestal.Described sour jujube relay part is included in tooth 412E projecting on the antetheca of pedestal 410 and the inner surface of lateral sidewall 412, described hook hangs on the edge 422A of bridgeware 422, on the edge that this bridgeware is arranged on the shut 420 of lid (see Figure 12 to 15).The substrate plate 411 of pedestal 410 has the tooth 412E (see Fig. 8) of opening 419 on the right, and tool tip can pass this opening 419 close to described ratchet 412E, to dismantle pedestal 410 and lid 420 from the outside of line cover 400.This sour jujube relay part also comprises the ratchet 423A carried by the pawl 423 be arranged on the edge of shut 420 on lid 420, and on pedestal 410, comprises correspondence be arranged on window 413A (see Figure 10 and 14) on the rear wall 413 of pedestal.Finally, lid 420 is provided with the inner surface 420A rising from shut 420 and perpendicular short column 426.These short columns 426 along the edge distribution of shut 420, and are oriented such that their flank extends to the right at the edge of shut.When lid 420 sour jujube is connected on pedestal 410, these short columns 426 are pressed against on the inner surface of pedestal 410, keep to reinforce the position of lid 420 on pedestal 410.

Line cover 400 (by lid 420 closed base 410) is bonded on circuit breaker 200 by the build-up member of described pedestal 410.The build-up member of described pedestal 410 is sour jujube relay part.

More specifically, as shown in Figs. 13 and 14, described build-up member comprises short column 415,417, and described short column has ratchet 415A, 417A on its free end.Short column 415,417 is from the inner surface 411A of the substrate plate 411 of pedestal and raise perpendicularly with it.In one pair, short column 415 is arranged in and is defined and the inner space closed by shut 420 by the lateral sidewall 412 of pedestal 410, antetheca 412 and rear wall 413.Two external short columns 417 are positioned on the edge of the pedestal 410 at rear wall 413 back of pedestal 410, and are being defined by the lateral sidewall 412 of pedestal 410, antetheca 412 and rear wall 213 and outside the inner space closed by shut 420.Every externally short column 417 forms the fork-shaped portion with two parallel branch, and two outer side edges carries the ratchet 417A be oriented in opposite direction.These Y-pieces for being plugged in the fluting on the casing rear surface being arranged on circuit breaker 200, and being hooked on and being arranged on the edge of the otch on described wall relative to described fluting.Hook and the unhook of each Y-piece is performed by the branch 417 of elastic bending a little close to each other.As shown in Figure 4, the shut 420 forming lid has supplementary aperture 425, this supplementary aperture is passed through by short column 415 in pedestal 410, appears at the ratchet 415A of line cover 400 outside to make their free end be provided with and can be hooked on the edge of opening of the inner surface of the casing corresponding to circuit breaker 200.In the foot of interior short column 415, the substrate plate 411 of pedestal 410 is passed by opening 419, and by this opening 419, the top of instrument can close to the ratchet 415A of interior short column 415, to disconnect the joint with pedestal 410, and therefore disconnect the joint with the line cover 400 of circuit breaker 200.

Finally, as shown in Fig. 8,13 and 14, the substrate plate 411 of the pedestal 410 of line cover 400 cuts out two flexible tongue 411L.Each tongue piece 411L all has free end, and this free end is positioned on the edge of described substrate plate 411, and connects the pull bar 416 extended in described tongue piece 411L both sides (direction along vertical with substrate plate) perpendicular to described tongue piece 411L.Each pull bar 416 is provided with the grasp opening 416A be positioned on a part of pull bar 416, this grasp opening extends at the side of the outer surface of described substrate plate 411, and be connected on hook 418A, described hook 418A makes the part 418 of the pull bar 416 be positioned on the inner surface 411A side of described substrate plate 411 extend.Each hook 418A is used for hanging the assembling tongue piece of circuit breaker in the rear hook of circuit breaker 200, and by means of the pull bar 416 of line cover 400, may stretch these tongue pieces and assemble circuit breaker, to depart from the assembling guide rail that circuit breaker 200 assembles.

In the electric component 1 being illustrated in different accompanying drawing, be advantageously provided modular interface 100, this modular interface ensures machinery and the electrical engagement of the series connection of circuit breaker 200 and transient state over-pressure safety device 300.

This modular interface 100 is the integral part of protective device 300 at this in the meaning of its mechanism; this will be described below; this modular interface 100 is contained in the casing (module 310) of protective device 300 by whole; but in unshowned enforcement modification; can imagine the casing that modular interface has himself, this casing is plugged between the casing of circuit breaker and the casing of protective device.

This modular interface 100 has the hook 340 activated by lock 341 (as previously mentioned), with the casing of the module 310 and circuit breaker 200 of assembling protective device 300.

As Fig. 3,18, shown in 23-29, modular interface 100 also comprises:

-electric switch 110, it is connected to connector 120 by electric wire 111,112,113, and this connector can transmit the signal of the running status characterizing circuit breaker 200 and/or protective device 300;

-the first secure mechanical component 130, it is intended to the opened/closed lever (utilizing the joystick 230 of opening/closing device) being connected to circuit breaker 200, and can move between the cocked position (see Figure 26 and 27) of the engagement state of the open and close device corresponding to circuit breaker 200 and the open position (see Figure 28 and 29) corresponding to the off-state of the open and close device of circuit breaker 200, this the first secure mechanical component 130 is suitable at open position actuated electrical switch 110, to transmit the signal of the off-state representing circuit breaker 200; With

-be different from the first secure mechanical component 130 and the second secure mechanical component 140 run independent of this first secure mechanical component 130, it is intended to be connected to protective device 300, and can move between the position of rest (see Figure 26 and 29) of the normal operating condition corresponding to protective device 300 and the open position (Figure 27 and 28) corresponding to the default setting of the rheostat 333 (over-voltage limitation means) of described protective device 300, this the second secure mechanical component 140 is suitable for actuated electrical switch 110 in open position, and do not affect the position of described first secure mechanical component 130, the signal that the acquiescence of protective device 300 is run is represented with transmission, this the second secure mechanical component is positioned in the first secure mechanical component 130 from its open position (Figure 28) to the path (Figure 28) of its cocked position (Figure 27) process, so that the second secure mechanical component 140 forms stopper section 143 described in this open position (Figure 28), to forbid that the first secure mechanical component 130 reaches its cocked position from its open position.

As shown in figs. 17 and 20, connector 120 is arranged on the rear surface of the rear portion of the casing 311 of the module 310 of protective device 300, and is in the holding part 311F recessed relative to this rear surface.Be assemblied in the position of module 310, connector 120 can be close above module 310, to engage the signaling interface (not shown) for showing the information transmitted by described connector.

First and second secure mechanical components 130,140 are installed freely to rotate around two axles A1, A2 respectively, and described two axles have parallel axis X 1, X2 (see Figure 23) being fixed on the casing 310 of protective device 300.

According to the preferred embodiment shown in Figure 23-29, the first and second secure mechanical components 130,140 are respective independently of one another for making rocking arm 150 pivotable, to cause the closed of electric switch 110.

Rocking arm 150 is the integral pieces made with insulating material.It comprises:

-middle body 151, this middle body is installed freely to rotate around fixing axle A3 and is provided with the finger-shaped control member 152 of described electric switch 110, this axle A3 has the axis X 3 parallel with the rotational axis x 1 of the first and second secure mechanical components 130,140, X2, and

-extend and the Liang Ge branch 153,154 substantially mutually opposed from this middle body 151, a branch 153 in described branch has towards the abutment face 153A of the first secure mechanical component 130, another branch 154 has the abutment face 154A towards the second secure mechanical component 140, described first and second secure mechanical components 130,140 are resisted against on abutment face 153A, 154A of branch 153,154 of rocking arm 150 respectively, with towards electric switch 110 pivotable (see Figure 29 and 27).

First secure mechanical component 130 is the integral piece (monomer-type part) of insulating material, it comprises plate portion 131, a surface bearing in this plate portion for receiving the bearing 132 of the axle A1 with axis X 1, the pin 133 that is connected with the open and close device (attaching to the lever of joystick 230) of circuit breaker 200 of surface bearing of another opposition in this plate portion.Mechanical connection between pin 133 and circuit breaker 200 is realized by the opening 313A of the side direction first type surface 313 of the module 310 of protective device 300, and this opening sets up the connection (see Figure 17) with circuit breaker 200.Plate portion 131 has the finger-like actuated piece 134 for controlling electric switch 110, and extended by arm 135, this arm is extending with finger-like actuated piece 134 phase the same side and is having kink 136 at its free end, and this kink can against the described stopper section 143 (see Figure 28) of the second secure mechanical component 140 being in open position.

Second secure mechanical component 140 is the integral piece of insulating material, it has arm 141, this arm is provided with the finger-like actuated piece 142 for controlling electric switch 110, and there is the free end 143 of the described stopper section forming described first secure mechanical component 130 on the one hand, on the other hand there is the end 144 with the opposition of described free end 143, this end 144 is arranged on freely to rotate has axis X 2 and on the axle A2 extended on the rear portion of the casing 311 of the module 310 of protective device 300, this end 144 connects lever 145, this is 145 through axle A2 being suitable for by least one actuator 160 around this axle A2 pivotable, under the default setting of the rheostat 333 (over-voltage limitation means) of described protective device 300, the action of this actuator 160 is released.

Preferably as shown in figure 23, arm 141 and the lever 145 of the second secure mechanical component 140 form the integral piece of overall L shape.

Lever 145 comprises by being passed by axle A2 and the main body that formed of the continuous tubular portion 146 with axis X 2.

Lever 145 and arm 141 are arranged on (see Figure 19 and 21) in the interior placement portion 317,318 of the rear portion of the casing 311 of module 310.In these, placement portion comprises pawl 317, this grippers has the otch 317A of band rounded base, axle A2 and wall assembly 318 is embedded with in this otch, described lever 145 wedged by this wall assembly 318, to settle this arm 141 fully relative to the side direction first type surface 3111 of module 310 and other component (especially the first secure mechanical component 130) of modular interface 100.

Be provided with elastic reseting part, this elastic reseting part trends towards the second secure mechanical parts 140 to be placed in position of rest.Elastic reseting part is in this case around the spring silk 148 that the main body 146 of described second secure mechanical parts 140 is wound around, one second spring silk 148 is attached to described main body 146, and the other end of spring silk 148 against the inner surface of the upper wall 311B of the rear portion of the standing part of modular interface, in this case casing 311 by locking (see Figure 21 to 25).

As shown in Figure 21 to 25, according to shown execution mode, this is provided with three actuators 160, these actuators distribute along the main body 146 of the lever 145 of the second secure mechanical component 140, each actuator 160 comprises a rear portion 165 (see Figure 32 and 35), and this rear portion is bonded in the free space 147 between two tubular portions being arranged at main body 146.

Each actuator 160 is all associated with the rheostat 333 of the lightning arrester housing 330 of a protective device 300.

More generally, the rheostat 333 of protective device 300 is provided with multiple actuator 160.

On the one hand, each actuator 160 is connected to the rear portion of the casing 311 of module 330 by elastic reseting part 170, this elastic reseting part 170 trends towards described actuator 160 to be positioned at off-position, in this position, lever 145 is placed in the open position corresponding with the open position of the arm 141 of described second safe machine mechanical component 140; On the other hand, each actuator 160 remains in coupled position by the component 600 of the lightning arrester housing 330 be connected with fusible connecting portion 335, and described in this link position, elastic reseting part 170 is applied in stress.

More specifically, as Figure 30 to 35 preferably shown in, each actuator 160 includes a plate portion, and the rear surface 161 in this plate portion is recessed, to match with the cylindrical outer surface of the tubular portion of the main body 146 of lever 145.Like this, each actuator 160 is installed pivotally around axle A2.The top edge 162 of the rounding in the plate portion of each actuator 160 is pressed against on the lever 145 that is connected with the arm 141 of the second safety member 140.The rear portion 165 of actuator 160 extends towards the bottom of the rear portion of the casing 311 of module 310 between two tubular portions 146 of the main body of lever 145 from the rear surface 161 in this plate portion.This rear portion 165 comprises hole 166, is attached with the end 171 of spiral stretching spring 170 in this hole, on the short column 316 that the bottom 311A that the other end of this spring joins the rear portion of casing 311 to carries (see Figure 21 and 22).In addition, the front part 163 in the plate portion of each actuator 160 carries outstanding short column 164.This short column 164 through the window 331E of the rear wall of the casing 331 of the lightning arrester housing 330 be associated, to make its free end against the rear surface 602 of the internal structure 600 of described lightning arrester housing 330.As Figure 31 and 34 preferably shown in, this internal structure 600 is the pin extended along the block of the rheostat 333 of lightning arrester housing 330.This pin 600 comprises the cannelure 603 on the internal rib 331B of the casing 331 being slidably mounted on lightning arrester housing 330.With its rear surface 602 contrario, pin 600 comprises front surface 601, and due to fusible connecting portion 335, the surface 701 (the hot break connecting mechanism of lightning arrester housing 330) that this front surface is pressed against slide block 700 remains on link position.Link position shown in Figure 31 and 32, kept the plate portion of actuator 160 by short column 164 against this pin 600 of the slide block 700 kept by fusible connecting portion 335, this plate portion is directed towards described arm at described link position, spiral stretching spring 170 tensioning in this position, lever 145 and the arm 141 of the second secure mechanical component 140 are in position of rest.Otherwise, as shown in FIG. 34 and 35, when slide block 700 is in its connection breaking position, cause the fusing of fusible connecting portion 335 owing to exceeding the thermal capacity of the rheostat 333 of lightning arrester housing 330, this release pressing to the front surface 601 of pin 600.Pin 600 can be free to slide on internal rib 331B, and no longer resists the short column 164 of actuator 160, and this short column is by the pin 600 that stretches at the spiral stretching spring 170 being in original compression state.By the top edge 162 of rounding against its plate portion to make spiral stretching spring 170 cause inclination to actuator 160 eminence, cause the lever 145 of the second secure mechanical component 140 and arm 141 from its position of rest (reduction) to open position (raising) pivotable, wherein, on the one hand, the finger-like actuated piece 142 of arm 141 activates the electric switch 110 be connected with connector 120 by rocking arm 150, on the other hand, the stopper section 143 of the arm 141 of the second secure mechanical component 140 is positioned on the stroke between open position and cocked position of the first secure mechanical component 130.

With reference to Figure 26 to 29, the operation of this modular interface 100 of brief description.

As shown in figure 26, the electric component 1 be connected with local electric equipment (engaged circuit breaker 200 and the rheostat 333 of protective device 300 being connected to electrical network) normally runs, the plate portion 131 of the first secure mechanical component 130 is raised to cocked position, wherein its finger-like actuated piece 134 does not contact with the abutment face 153A of rocking arm 150, the arm 141 of the second secure mechanical component 140 is lowered by position of rest, wherein the finger-like actuated piece 142 of this arm 141 keeps contacting with the abutment face 154A of rocking arm 150, the finger-shaped control member 152 of this rocking arm contacts with the button of electric switch 110.

When the rheostat 333 of protective device 300 is due to aging and when exceeding its thermal capacity; cause the fusing of the fusible connecting portion 335 of the lightning arrester 330 be associated: this causes the actuating of the signal component (not shown) of default setting on lightning arrester housing front faces, and the switching of off-position that the actuator 160 be associated is raised from the link position that it reduces to it.In it switches, actuator 160 drives 145 and the arm 141 of the second secure mechanical component 140 from the position of rest reduced to the open position raised around axle A2 pivotable, wherein the finger-like actuated piece 142 of arm 141 promotes abutment face 154A, to be switched on the direction of electric switch 110 around its axle A3 by rocking arm 150, thus the finger-shaped control member 152 of rocking arm 150 impacts the button (see Figure 27) of electric switch 110.Like this, the finger-like actuated piece 142 of the arm 141 of the second secure mechanical component 140 activates the electric switch 110 of connector 120, and the default information of protective device 300 is transferred to unshowned process and display unit by its this electric switch.As shown in figure 27, at the open position of the second secure mechanical component 140, the stopper section 143 be arranged on arm 141 free end is elevated and is positioned on the path disconnecting the first secure mechanical component 130 between cocked position.As Figure 27, because circuit breaker 200 keeps engaging (closing of circuit), described first secure mechanical component 130 keeps motionless and is retained in cocked position.

As shown in figure 28; in order to replace the defective lightning arrester housing 330 of protective device 300 under good safety condition; the electric component 1 of user's buffer circuit, and open described circuit by the disconnection (this reduces joystick 230 and the lever of attachment usually) of circuit breaker 200.Via pin 133, switched causing around axle A from its cocked position to open position to the below of the first secure mechanical component 130 by the actuating reduction lever of joystick 230, the finger-like actuated piece 134 in plate portion 131 against the surperficial 153A of rocking arm 150, to switch on the direction of electric switch 110 around axle A3.The finger-shaped control member 152 of rocking arm 150 impacts the button (see Figure 28) of electric switch 110.Like this, the finger-like actuated piece 134 in the plate portion 131 of the first secure mechanical component 130 activates the electric switch 110 of connector 120, its opening circuit breaker 200 and disconnecting information transmission to unshowned process and display unit.

Notice in Figure 28, because the free end 143 of the arm 141 of the second secure mechanical component 140 is located in the face of the kink 136 of the arm 135 of the first secure mechanical component 130, the second secure mechanical component 140 being in open position stops the closed of circuit breaker 200 and again engages.If user attempts the joystick 230 of lifting circuit breaker 200 with closed circuit, the kink 136 of the first secure mechanical component 130 will via pin 133 by lever around axle A1 by rotating drive with from open position to cocked position, the described free end 143 of its gear arm rest 141 (formation stopper section).Against the free end 143 of the arm 141 of the second secure mechanical component 140, the backstop of the kink 136 of the first secure mechanical component 130 is arranged can forbid that the first secure mechanical component 130 arrives its cocked position, which prevent the closed of the circuit of circuit breaker 200.

And before circuit breaker 200 engages again, user replaces the defective lightning arrester housing 330 in protective device 300.The pin 600 of new lightning arrester housing 330 reduces the actuator 160 of corresponding link position by pin 164, drive spiral stretching spring 170.The free link position of lever 145 got back to by actuator 160, the arm 141 of the second secure mechanical component 140 is switched to position of rest from its open position under the action of spring silk 148, wherein rocking arm 150 and the first secure mechanical component 130 phase deviation (see Figure 29).At this position of rest, the second secure mechanical component 140 is by the path offseting the second secure mechanical component 140 experience between its open position and cocked position.User again can engage the lever of circuit breaker 200 and activate joystick 230, with closed circuit, this is because the first secure mechanical component 130 from its open position to cocked position around the free pivotable of axle A1 or switching, and can pass through connecting pin 133 by the lever actuated of circuit breaker 200.No longer to be discharged the pressure on the push button of electric switch 100 at side's rocking arm 150 upwardly of electric switch 110 by the first and second secure mechanical components.Traditionally, this push button gets back to its initial stable state under the action of elastic reseting part, and promotes rocking arm 150, and this rocking arm 150 is around axle A3 to the initial position pivotable shown in Figure 26.

It should be pointed out that advantageously, the movement of the second secure mechanical component 140 is different with action and independent of the movement of the first secure mechanical component 130 and action.Each secure mechanical component 130,140 acts on electric switch 110 independently of one another; with the operation information making connector 120 transmit relative breaker 200 and protective device 300; but the action of the second secure mechanical component 140 at that point on circuit breaker 200 without any impact, it does not cause the open and close of circuit breaker 200 automatically.First and second secure mechanical components 130,140 have identical major function, and a kind of function relates to the running status (normal or fault) of electric component 1 (forming the lightning arrester assembly of protection automatically).

According to the preferred feature of protective device 300 being illustrated in different accompanying drawing, the accommodating axle 190 of front part of the casing 312 of module 310; 190 ', be namely provided with at least one locking component 191; " the housing lock shaft " of 191 ', this axle 190; 190 ' movement is arranged in module 310, to move it the movement of the open and close device 230 being associated with circuit breaker 200, and described housing lock shaft 190; 190 ' can adopt two different positions, that is, primary importance and the second place, and this primary importance is called " home " and corresponds to the engagement state of circuit breaker, each locking component 191 in this position; 191 ' with the complementary portion 334 of lightning arrester housing 330; 334 ' matches, and to forbid taking off and/or insert described lightning arrester housing 330, this second place is called " approximated position " and corresponds to the off-state of circuit breaker, each locking component 191 in this position; The described complementary portion 334 of 191 ' release lightning arrester housing 330; 334 ', to allow to take off and/or insert described lightning arrester housing 330.

Advantageously, elastic reseting part 193 is provided with; 193 ', this elastic reseting part trends towards housing lock shaft 190; 190 ' shifts to home.

As shown in Figure 36 to 45, housing lock shaft 190; 190 ' comprises multiple locking component 191; 191 ', in described holding part 320, hold lightning arrester housing 330.

Herein, housing lock shaft 190; 190 ' comprises three locking components 191; 191 ', each locking component is associated with a lightning arrester housing 330.

The first execution mode according to Figure 36 to 41, housing lock shaft 190 has end 192, match with conveying member 180 in this end 192, this conveying member 180 pivotable is connected to the first secure mechanical component 130 of modular interface 100 and installs freely to rotate around the axle A4 with the axis parallel with the rotational axis x 1 of described first secure mechanical component 130.

Housing lock shaft 190 supports at least one short column 191 (it comprises multiple short column, has lightning arrester housing in protective device), and at this, it comprises three short columns 191, and the Angle Position that its employing two is different, that is:

-being called the primary importance (see Figure 36 to 38) of " home ", it corresponds to the cocked position (see Figure 38) of described first secure mechanical component 130; With

-being called the second place (see Figure 39 to 41) of " approximated position ", it corresponds to the open position (see Figure 41) of described first secure mechanical component 130.

More specifically, as shown in Figure 18 and 22, housing lock shaft 190 is installed in below lower wall 315, and this lower wall 315 defines the holding part 320 of the lightning arrester housing 330 of the front part of the casing 312 of holding module 310.This axle 190 is pivotally mounted in the otch on the bottom of the internal configurations 319B (formation pivot support) of the rounding of the front lower portion of casing 319.Due to the holding claws 319A from this lower box 319B, this axle 190 is maintained on these supporting members 319B.

As Figure 18 preferably shown in, on the described lower wall 315 of casing 312 front part of module 310, in the bottom of each fluting 315A of assembling lightning arrester housing 330, be provided with the window 315B on the right side of each short column 191 of being positioned at and being supported by housing lock shaft 190.

As shown in Figure 38 and 41, conveying member 180 presents the disk shape with cylindrical central main body, and supporting is substantially along two alar parts 181,182 that opposite direction extends on its outer surface.This cylindrical central main body is axial penetration, and the axle A4 be fixed on the casing of module 310 is through (see Figure 23).One of alar part of conveying member 180 181 is for good and all pressed against on the wall 137 that supported by the inner surface in the plate portion 131 of the first secure mechanical component 130, and this inner surface also supports the supporting member 132 holding axle A1.Another alar part 182 of conveying member 180 is for good and all pressed against on the described end 192 of housing lock shaft 190.This end 192 presents the form of the plate that the longitudinal axis transverse to axle 190 extends.

Like this, when the first mechanical component 130 is driven pivotally around axle A1 by the lever of the circuit breaker 200 activated by joystick 230 between cocked position and open position, it drives the housing lock shaft 190 of pivotable between home and approximated position.

And, the elastic reseting part trending towards housing lock shaft 190 to shift to its home is the spring silk 193 be wound around around housing lock shaft 190, an end of this spring silk is connected to described axle, and its another end is by standing part (lower part of the casing 319) locking against module 310.

At home, each short column 191 of housing lock shaft 190 is highlightedly through the window 315B (see Figure 18) on the fitting recess 315A of corresponding lightning arrester housing 330.In this position, each short column 191 moves the inclined plane 334A (Figure 36 and 37) of gear by the short column 334 of the inner surface 331C supporting of the casing 331 by each lightning arrester housing 330 be bonded in each fluting 315A of module 310.These short columns 191 being in home also forbid breaking the lightning arrester housing 330 of the module 310 of protective device 300.

In approximated position; each short column 191 of housing lock shaft 190 is extracted out by the described window 315B of the box house from module 310, to allow the module 310 (see Figure 39 and 40) splitting out one or more lightning arrester housing and/or load protective device 300.

According to being shown in second execution mode of Figure 42 to 45, housing lock shaft 190 ' presents the shape of the tape (chi shape part) can installed movably along translation direction T translation in the module.

This tape is provided with at least one otch 191 ' (in this case three otch 191 '), these otch are directed along the translation direction T of described tape, so that on the short column 334 ' that one side makes each otch 191 ' be bonded in described home to be carried by the inner surface 331C of the casing 331 of lightning arrester housing 330, so that this lightning arrester housing 330 is connected to this housing lock shaft 190 ' (see Figure 42), make on the other hand each otch 191 ' away from the short column 334 ' be connected with corresponding lightning arrester housing 330 in described approximated position, to discharge lightning arrester housing 330 (see Figure 44) from housing lock shaft 190 '.

This tape 190 ' in succession comprises first rectangular slits 191 ' and two L-shaped otch from being positioned at the end of circuit breaker 200 side, wherein shorter length part along translation direction T extend and form be bonded on lightning arrester housing 330 short column 334 ' on described otch 191 '.

According to this second execution mode, trend towards housing lock shaft 190 ' to move on to elasticity reset device in home for being inserted in the spiral compression spring 193 ' between the end sections 192 ' A of housing lock shaft 190 ' and the standing part of module 310.

Housing lock shaft 190 ' is also positioned under inwall, this inwall defines the holding part of the lightning arrester housing 330 of modular tank front part, the short column 334 ' protruding from the inner surface 331C of lightning arrester housing 330 through the window bottom the fitting recess being arranged at lightning arrester housing 330, to match with the described otch 191 ' of housing lock shaft 190 '.

In addition, according to the second execution mode, especially as shown in figures 44 and 45, first secure mechanical component 130 is suitable for the edge 192 ' B being pressed against the end 192 ' of housing lock shaft 190 ' when leading to open position from cocked position, to push it to approximated position, and then activate the reset of spiral compression spring 193 '.

Housing lock shaft 190; 190 ' advantageously guarantees that user opens circuit, and this circuit connects electric component 1, and opens or cut-off breaker 200, to interfere the lightning arrester housing 330 of protective device 300.Protective device 300 advantageously has the escape way for user.

In the normal operation of electric component 1; protective device 300 joins electrical network to by circuit breaker 200, and this circuit breaker 200 is engaged (its circuit is closed) and the first secure mechanical component 130 of module 100 is placed in cocked position (see Figure 38 and 43).According to the first execution mode; housing lock shaft 190 is remained on its home by spring silk 193; the short column 191 that this housing lock shaft supports leans against on the inclined plane 334A of the short column 334 of the lightning arrester housing 330 of protective device 300 at this position gear, takes off the described lightning arrester housing 330 (see Figure 36 and 37) of module 310 with the person of prohibitting the use.According to the second execution mode; helical spring 193 ' shifts housing lock shaft 190 ' onto its home; wherein otch 191 ' is bonded on the short column 334 ' of lightning arrester housing 330 of protective device, takes off the lightning arrester housing 330 (see Figure 42 and 43) of module with the person of prohibitting the use.

When user should replace one of them lightning arrester housing 330 this lightning arrester housing due to its rheostat 333 aging and exceed thermal capacity (this by hot break connecting mechanism intermediary cut off circuit) and be in acquiescence run, user opens the circuit of circuit breaker 200, and reduces joystick 230 with actuation lever.This causes the plate portion 131 of the first secure mechanical component 130 around axle A1 to switch from its cocked position to open position.According to the first execution mode of housing lock shaft, this plate portion 131 is rotated by driving via the wall 137 promoting alar part 181, the alar part 182 of conveying member 180 promotes the end 192 of housing lock shaft 190, to be switched the approximated position of the effect of described axle 190 from its home to the spring silk 193 of opposing stature.When housing lock shaft 190 switches, short column 190 is sliding to be leaned against on the inclined plane 334A of the short column 334 supported by the inner surface 331C of lightning arrester housing 330, to enter the box house of module 319, under the lower wall 315 of holding part 320, is inserted with lightning arrester housing 330.In approximated position, short column 191 acts on (Figure 39 and 40) on the short column 334 of thunder device housing 330, user can take off protective device module the lightning arrester housing 330 damaged and load onto one new.According to the second execution mode of housing lock shaft, plate portion 131 is pressed against the edge 192 ' B of the end 192 ' of housing lock shaft 190 ', to promote to its approximated position translation, with the spiral compression spring 193 ' of actuating compression along direction T from its home.When the 190 ' translation of housing lock shaft, otch 191 ' moves and away from the described short column 334 ' of described lightning arrester housing 330 on translation direction T.In approximated position; as shown in figure 44; the short column 334 ' of otch 191 ' separate lightning guard housing 330, and the described short column 334 ' of the lightning arrester housing 330 of user, user can take off protective device module impaired lightning arrester housing 330 and load onto one new.

When all lightning arrester housings 330 of protective device 300 are in running status; user can again close circuit breaker 200 circuit and lift the joystick 230 of actuation lever, with by the plate portion 131 of the first secure mechanical component 130 from its open position to its cocked position rotating drive.According to the first execution mode of housing lock shaft, described plate portion 131 release pressure on conveying member 180, and spring silk 193 extends to take housing lock shaft 190 to its home, described window 315B on the inwall 315 of the holding part 320 that its short column 191 carried of this lock shaft is inserted by lightning arrester housing 330 in this position exposes, to keep off the inclined plane 334A (Figure 36 and 37) of the short column 334 by lightning arrester housing 330.Lightning arrester housing 330 is also locked in the module 310 of protective device 300 by the housing lock shaft 190 being provided with short column 190.According to the second execution mode of housing lock shaft, described plate portion 131 acts on the edge 192 ' B of the end 192 ' of housing lock shaft 190 ', and the pressing of release to this edge.Spiral compression spring 193 ' extends and the otch 191 ' that wherein it has housing lock shaft 190 ' being taken to this housing lock shaft is bonded on the home of the short column 334 ' (Figure 42) of lightning arrester housing 330.Lightning arrester housing 330 is also locked in the module of protective device by the housing lock shaft 190 ' being provided with otch 191 '.

The present invention is not limited only to execution mode that is described and that illustrate, and those skilled in the art can be made at all changes form within the scope of it.

Claims

1. the protective device (300) of an anti-transient state overvoltage, this transient state overvoltage is especially derived from air, this protective device comprises casing (310), this casing is provided with two parallel side direction first type surfaces and accommodating and hot break connecting mechanism (335, 700) at least one rheostat (333) be linked, discharger and be connected respectively to the electric wire (F1 of each rheostat and this discharger, F2, F3, FN), described electric wire passes one of two side direction first type surfaces of this casing, the outside of casing is appeared to engage the terminal (L1 of circuit breaker (200) to make a part for described electric wire, L2, L3, LN), it is characterized in that, described protective device (300) comprises the pedestal (410) of electrical insulating material in the outside of this casing, this pedestal and described casing (310) are separated, and being provided with on the one hand matches with the holding member (412A be held in a predetermined position by each electric wire with described electric wire, 412B, 412C, 412D, 414A, 414B, 414C, 414D), be provided with the build-up member (415 for being fixed on by described pedestal on this circuit breaker on the other hand, 415A, 417, 417A).

2. protective device according to claim 1 (300), wherein, described holding member (412A, 412B, 412C; 412D, 414A, 414B, 414C; 414D) be arranged to the free end of electric wire (E1, E2, E3, EN) to remain on circuit that aturegularaintervals opens.

3. protective device according to claim 1 (300), wherein, the wall (412 that described pedestal (410) comprises substrate plate (411) and raises perpendicular to this substrate plate; 413,414), this wall comprises otch (412A; 412B, 412C, 412D; 414A; 414B, 414C, 414D); the accommodating described electric wire of described otch, to form described holding member.

4. protective device according to claim 1 (300), wherein, described pedestal (410) comprises substrate plate (411), at least one flexible tongue (411L) is cut with in this basal part, the free end being positioned at the edge of described substrate plate of this tongue piece and pull bar (416) connect, this pull bar and described tongue piece (411L) vertically extend from this tongue piece, each pull bar (416) is provided with the grasp opening (416A) be positioned in a part for pull bar, a part for this pull bar extends in the outer surface side of described substrate plate, and be connected to hook (418A), this hook makes the part (418) of the pull bar (416) of the inner surface side being positioned at described substrate plate (411) extend.

5. protective device according to claim 1 (300), wherein, the build-up member of described pedestal (410) is sour jujube relay part.

6. protective device according to claim 5 (300); wherein; described build-up member comprises pillar (415; 417); this pillar has ratchet (415A, 417A) on free end, and at least one pair of pillar (417) is positioned on the edge of pedestal; form two parallel branch in fork-shaped portion, two outer side edges in this fork-shaped portion carry the ratchet (417A) along opposite direction orientation.

7. protective device according to claim 1 (300), wherein, described pedestal (410) is the integral piece be made up of moulding material.

8. protective device according to claim 1 (300); wherein; be provided with the lid (420) of electrical insulating material; this lid is penetrated by through hole (421); the line cover (400) forming closed described electric wire is assembled mutually with pedestal; free end (the E1 of described electric wire; E2; E3; EN) the described through hole (421) through lid (420) stretches out this line cover (400), to join on the terminal of circuit breaker.

9. protective device according to claim 8 (300), wherein, described lid (420) is at the holding device of the described electric wire of the upper carrying of the inner surface towards pedestal (410) (420A) of this lid.

10. protective device according to claim 9 (300), wherein, the holding device of described lid (420) comprises wall (424; 424A; 424B, 424D), described wall vertically extends from the shut of described lid and this shut.

11. protective devices according to claim 8 (300); wherein; described lid (420) has additional holes (425); this additional holes is by the assembling device (415 of pedestal (410); 415A) pass, fix on-board the circuit breaker for by this pedestal.

12. protective devices according to claim 8 (300); wherein; described lid (420) and pedestal (410) comprise sour jujube relay part (422; 422A, 423,423A; 426; 412E, 413A), this sour jujube relay part is suitable for jointly coordinating to assemble this lid and this pedestal.

13. protective devices according to claim 12 (300); wherein; described pedestal (410) comprises opening (419); the top of instrument arrives described sour jujube relay part, to dismantle lid (420) and pedestal (410) through this opening (419).

14. protective devices according to claim 1 (300); wherein; described pedestal (410) comprises opening (419); the top of instrument arrives assembling device (415 described in some through this opening (419); 415A), pull down from circuit breaker for by pedestal (410).

15. protective devices according to claim 8 (300), wherein, described lid (420) is the integral piece be made up of moulding material.

16. 1 kinds of electric components (1) automatically protected, comprise the protective device (300) according to the anti-transient state overvoltage one of aforementioned claim Suo Shu and circuit breaker, the main lateral surface that this protective device and this circuit breaker pass through them is assembled with one another, the pedestal (410) of described protective device (300) is arranged on the inner surface of this circuit breaker (200), separate mutually with the casing (310) of described protective device (300), to make the electric wire (F1 be connected with discharger with each rheostat (333), F2, F3, FN) the main lateral surface of the casing of described protective device is stretched out, be linked with this circuit breaker thus, this is wired to phase terminal and the neutral terminal of this circuit breaker (200).