CN202307752U - Electricity leakage protection device and circuit breaker - Google Patents
Electricity leakage protection device and circuit breaker Download PDFInfo
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- CN202307752U CN202307752U CN201120404018XU CN201120404018U CN202307752U CN 202307752 U CN202307752 U CN 202307752U CN 201120404018X U CN201120404018X U CN 201120404018XU CN 201120404018 U CN201120404018 U CN 201120404018U CN 202307752 U CN202307752 U CN 202307752U
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Abstract
The utility model provides an electricity leakage protection device for a circuit breaker, wherein the electricity leakage protection device comprises an electricity leakage test handle; the electricity leakage test handle comprises a driving lever part, a main body part, a connecting rod, a sliding block, an elastic conductive part, an electricity leakage detection module and an electricity taking part, wherein the driving lever part can be driven by operators so as to carry out an electricity leakage protection function test on the circuit breaker; the main body part is connected with the driving lever part; one end of the connecting rod is connected with the main body part of the electricity leakage test handle; the sliding block is connected with one end of the connecting rod; the elastic conductive part props against the sliding block; the electricity leakage detection module is electrically communicated with the elastic conductive part; and after being pressed, the elastic conductive part can props against and be connected with the electricity taking part, thus the electric power of the electricity taking part is transferred to the electricity leakage detection module through the elastic conductive part, the electricity leakage detection module acquires an electricity leakage trigger signal, and the circuit breaker is ordered to be released. The utility model also provides a circuit breaker comprising the electricity leakage protection device.
Description
Technical field
The utility model relates to a kind of electric equipment products, particularly, relates to a kind of earth leakage protective device and the circuit breaker with earth leakage protective device.
Background technology
(clause 8.11 among the GB16917.1-2003 for GB GB and IEC standard code; Clause 8.11 among the IEC61009-1:2003): on the residual current action breaker of band overcurrent protection, should have residual current of experimental rig simulation through checkout gear so that the Motor ability of regular detection residual current device, the circuit breaker that therefore has the earth leakage protective device of earth leakage protective test function and have such earth leakage protective device arises at the historic moment.
Traditionally, the earth leakage protective device of circuit breaker comprises testing button, resilient, conductive member, electric-leakage detection circuit plate and power taking parts.When the user need carry out the test of creepage protection function of circuit breaker, the user depressed testing button, and this testing button is correspondingly pushed resilient, conductive member, and this resilient, conductive member correspondingly touches the power taking parts.Because when circuit breaker is installed in the circuit; The power taking parts are in electriferous state; Also correspondingly charged after resilient, conductive member touches the power taking parts, the electric-leakage detection circuit plate that is electrically connected with resilient, conductive member is thus given electricity, under this situation; The electric-leakage detection circuit plate will obtain an electric leakage triggering signal, make the main circuit free-handle of circuit breaker thread off thereby trigger actuator.Through aforesaid operations, simulated the creepage protection function of circuit breaker when in circuit, leak current fault taking place, specifically; The power taking parts give electricity for the leakage tests circuit board, have been equivalent to simulate the situation that leak current fault takes place in the circuit, if the user is after pushing testing button; The main circuit free-handle of circuit breaker breaks off, and shows that then the creepage protection function of circuit breaker is normal, otherwise; If the main circuit free-handle of circuit breaker does not break off, show that then creepage protection function lost efficacy.
Yet above-mentioned creepage protection function mechanism for testing of the prior art often is limited by the mutual alignment relation between other parts of its each parts and circuit breaker and is unfavorable for the miniaturization Design of circuit breaker.Therefore, have a kind of demand, that is, a kind of earth leakage protective device of novel structure need be provided, it helps the miniaturization Design of circuit breaker.
In addition; After circuit breaker is threaded off; The user hope to know owing to exist the electric leakage situation caused circuit breaker tripping still be other reason for example overcurrent caused circuit breaker tripping, therefore, circuit breakers more of the prior art have the earth leakage protective test function simultaneously (because the electric leakage in the test is artificial the generation; There is not electric leakage in circuit itself; Therefore it also can be called " passive " leakage tests function in the following description) and the own leak current fault Presentation Function of circuit (because there is electric leakage in circuit itself, therefore it also can be called " initiatively " leak current fault Presentation Function in the following description), these two functions are realized by the different mechanism of two covers respectively.Specifically, on the earth leakage protective device shell of circuit breaker, have the leakage tests button, as previously discussed, the user can be through this button and relevant testing such as resilient, conductive member, electric-leakage detection circuit plate and power taking parts realization creepage protection function.On the shell of earth leakage protective device, also have another leak current fault display unit, it typically is a colour code or button.When leak current fault took place in the circuit, another set of active earth leakage protective mechanism started, thereby makes colour code demonstrate specific color, and perhaps button is in different positions.Demonstrate specific color when the user observes colour code, when perhaps button is in the anomaly of different positions, can knows leak current fault has taken place in the circuit.
Yet; Because passive leakage tests function of the prior art is realized by the different mechanism of two covers respectively with active leak current fault Presentation Function; It is unfavorable for the miniaturization Design of circuit breaker; The cost that also is unfavorable for circuit breaker reduces, and the mechanism of its relative complex also makes the useful life of circuit breaker and stability be affected.Therefore, have a kind of demand, that is, a kind of earth leakage protective device of novel structure is provided, its aforementioned two functions with circuit breaker realize through a cover mechanism.
The utility model content
According to above-mentioned shortcoming and defect, the purpose of the utility model is to solve the problems referred to above that exist in the prior art at least.
In an embodiment of the utility model; A kind of earth leakage protective device that is used for circuit breaker is provided; This earth leakage protective device comprises: leakage tests handle, this leakage tests handle comprise and can be stirred with the driving lever part of the creepage protection function test of carrying out circuit breaker and the main part that partly links to each other with this driving lever by the operator; Connecting rod, an end of this connecting rod links to each other with the main part of leakage tests handle; Slide block, this slide block links to each other with the other end of connecting rod; Resilient, conductive member, this resilient, conductive member and slide block connect; The detection of electrical leakage module, this detection of electrical leakage module and resilient, conductive member electrical communication; And power taking parts; Resilient, conductive member can butt behind pressurized and is connected this power taking parts; Thereby make the electric power of power taking parts be transported to the detection of electrical leakage module via resilient, conductive member, so that the detection of electrical leakage module obtains an electric leakage triggering signal, thus the instruction circuit breaker tripping.Thus; The earth leakage protective device of the utility model is realized the leakage tests function through adopting the linkage of being made up of leakage tests handle, connecting rod and slide block; This is not adopt in the prior art; And linkage makes that the structural design of earth leakage protective device is more flexible, thereby helps the miniaturization Design of circuit breaker.
In the foregoing description of the utility model; Preferably; This driver part driving sliding block pressed down resilient, conductive member when this earth leakage protective device can also comprise driver part with generation leak current fault in circuit, so that resilient, conductive member abuts to the power taking parts and connects with the power taking parts.Thus, the earth leakage protective device of the utility model adopts the novel structure of a cover to have leakage tests function and active leak current fault Presentation Function simultaneously.
In above-mentioned arbitrary embodiment of the utility model, preferably, resilient, conductive member is torsion spring or stage clip.
In above-mentioned arbitrary embodiment of the utility model, preferably, the leakage tests handle is a rotary handle.Thus, different fully with traditional pressing button with rotary handle as the leakage tests handle, will bring brand-new operating experience to the user.
In above-mentioned arbitrary embodiment of the utility model, preferably, the main part of leakage tests handle has groove, and an end of connecting rod is connected in this groove, and can in this groove, slide.
In above-mentioned arbitrary embodiment of the utility model, preferably, the leakage tests handle has initial position and passive leakage tests position; Under the situation of normal operation of circuit breaker, the leakage tests handle is in this initial position, and resilient, conductive member and the disconnection of power taking parts; Pushed this passive leakage tests position when carrying out leakage tests at this leakage tests handle by the operator; Resilient, conductive member and power taking parts are connected to cause circuit breaker tripping; And after this leakage tests handle was discharged by the operator, this leakage tests handle automatically restored to initial position under the elastic force of resilient, conductive member.Thus, the leakage tests function of earth leakage protective device is achieved.
In above-mentioned arbitrary embodiment of the utility model, preferably, the leakage tests handle has initial position, passive leakage tests position and active leak current fault display position, and wherein this passive leakage tests position is a same position with active leak current fault display position; Under the situation of normal operation of circuit breaker, the leakage tests handle is in this initial position, and resilient, conductive member and the disconnection of power taking parts; Pushed this passive leakage tests position when carrying out leakage tests at this leakage tests handle by the operator; Resilient, conductive member and power taking parts are connected to cause circuit breaker tripping; And after this leakage tests handle was discharged by the operator, this leakage tests handle automatically restored to initial position under the elastic force of resilient, conductive member; In when, in circuit leak current fault taking place; The driver part driving sliding block presses down resilient, conductive member; So that resilient, conductive member and power taking parts connect causing circuit breaker tripping, and the motion of slide block makes the leakage tests handle move to initiatively the leak current fault display position and remain on this active leak current fault display position so that leak current fault to take place the display circuit from initial position.Thus, the leakage tests handle has leakage tests function and active leak current fault tripping indication function simultaneously concurrently, and correspondingly, the leakage tests function of earth leakage protective device is achieved in same set of mechanism with active leak current fault Presentation Function.
In above-mentioned arbitrary embodiment of the utility model, preferably, the main part of leakage tests handle has groove; One end of connecting rod is connected in this groove; And can in this groove, slide, groove has first and second portion, when the leakage tests handle is in passive leakage tests position; One end of connecting rod is arranged in this first, and connecting rod is not crossed the dead-centre position line of the linkage of being made up of leakage tests handle, connecting rod and slide block.Because connecting rod is not crossed the dead-centre position line of linkage, therefore, this leakage tests handle automatically restores to initial position under the elastic force of resilient, conductive member.
In above-mentioned arbitrary embodiment of the utility model, preferably, the main part of leakage tests handle has groove, and an end of connecting rod is connected in this groove, and can in this groove, slide, and groove has first and second portion; When the leakage tests handle was in passive leakage tests position, an end of connecting rod was arranged in this first, and connecting rod is not crossed the dead-centre position line of the linkage of being made up of leakage tests handle, connecting rod and slide block; When the leakage tests handle had the initiative the leak current fault display position, an end of connecting rod was arranged in this second portion, and connecting rod is crossed the dead-centre position line of institute's linkage.Because after initiatively electric leakage took place, connecting rod had been crossed the dead-centre position line of linkage, therefore, after the leakage tests handle is discharged by the operator, the leakage tests handle can't return to initial position, but remain on initiatively leak current fault display position.
In the embodiment of the utility model, a kind of circuit breaker is provided, this circuit breaker comprises the described earth leakage protective device of above-mentioned arbitrary embodiment.
Will be appreciated that foregoing description only is for exemplary purpose, rather than will limit the scope of the utility model.
Description of drawings
Above-mentioned and the further feature of the exemplary embodiment of the utility model and advantage will become more obvious from following detailed description with the accompanying drawing; And this description and accompanying drawing only are used for scope illustrative purpose rather than that limit the utility model by any way, wherein:
Figure 1A-1C is the sketch map that illustrates according to the operation principle of the earth leakage protective device of the preferred embodiment of the utility model; Wherein Figure 1A illustrates this earth leakage protective device and is in initial condition and comprises that the circuit breaker of this earth leakage protective device is in the situation of first closure state; Figure 1B illustrates the operator when carrying out leakage tests pushes the leakage tests handle of earth leakage protective device left the leakage tests position and keeps the leakage tests handle in this leakage tests position and the main circuit free-handle of circuit breaker is in the situation of trip status, and the leakage tests handle that Fig. 1 C illustrates earth leakage protective device when electric leakage occurring in the circuit moves to the leak current fault display position left and the situation of the free-handle of circuit breaker when being in the dropout position.
Fig. 2 illustrates the perspective diagram that comprises according to the circuit breaker of the earth leakage protective device of the preferred embodiment of the utility model, and wherein frame of broken lines is surrounded part and is the primary structure of earth leakage protective device, and earth leakage protective device and circuit breaker all are in initial condition.
Fig. 3 A-3D is the perspective diagram that illustrates according to the earth leakage protective device of the preferred embodiment of the utility model; It is the enlarged drawing of the frame of broken lines part of Fig. 2; But the residing position of each parts is different; Wherein Fig. 3 A illustrates this earth leakage protective device and is in initial condition and comprises that the circuit breaker of this earth leakage protective device is in the situation of first closure state; Fig. 3 B illustrates the operator when carrying out leakage tests pushes the leakage tests handle of earth leakage protective device left the leakage tests position and keeps the leakage tests handle in this leakage tests position and the situation that the main circuit free-handle of circuit breaker is not threaded off as yet; Fig. 3 C illustrates that the operator unclamps behind the hand that the leakage tests handle automatically restores to initial position and the free-handle of circuit breaker is in the situation of trip status, and Fig. 3 D illustrates when leak current fault occurring in the circuit that the leakage tests handle moves to initiatively the leak current fault display position left and free-handle moves to the situation of dropout position left.
Embodiment
Each exemplary embodiment of the utility model is described below with reference to accompanying drawings.
About the aforementioned of the utility model and other technology contents, characteristics and effect, following cooperation with reference to the detailed description of accompanying drawing to embodiment in, can clearly appear.In front and the direction term of being mentioned in the following description, for example: upper and lower, left and right, front or rear etc. only are the directions with reference to accompanying drawing.Therefore, the direction term of use is to be used for explaining not to be to be used for limiting the utility model.In addition, in whole embodiment, identical drawing reference numeral is represented components identical.
At first, need to prove, shown in the accompanying drawing 1A-3D of utility model is being a kind of special preferred embodiment; Wherein earth leakage protective device have concurrently simultaneously passive leakage tests function (like what preceding mention, for convenience, the electric leakage in the leakage tests is called " passive electric leakage ") and initiatively the leak current fault Presentation Function (like what preceding mention; For convenience; The electric leakage that occurs in the circuit is called " initiatively electric leakage " in this description), and show the preferred structure of each parts, still; Those skilled in the art are to be understood that; The foregoing description only is exemplary preferred implementation, and some technical characterictic among the embodiment possibly not be essential for solving specific technical problem, thereby can not or omit these technical characterictics and the solution of non-influence technique problem or the formation of technical scheme.Specifically, for example, the earth leakage protective device of the utility model can only have passive leakage tests function and not have initiatively leak current fault Presentation Function,, for example, can not have driver part 5 shown in the drawings that is.
Figure 1A-1C is the sketch map that illustrates according to the operation principle of the earth leakage protective device of the preferred embodiment of the utility model; Wherein Figure 1A illustrates this earth leakage protective device and is in initial condition and comprises that the circuit breaker of this earth leakage protective device is in the situation of first closure state; Figure 1B illustrates the operator when carrying out leakage tests pushes the leakage tests handle of earth leakage protective device left the leakage tests position and keeps the leakage tests handle in this leakage tests position and the main circuit free-handle of circuit breaker is in the situation of trip status, and the leakage tests handle that Fig. 1 C illustrates earth leakage protective device when leak current fault occurring in the circuit moves to the leak current fault display position left and the situation of the free-handle of circuit breaker when being in the dropout position.Fig. 2 illustrates the perspective diagram that comprises according to the circuit breaker of the earth leakage protective device of the preferred embodiment of the utility model, and wherein frame of broken lines is surrounded part and is the primary structure of earth leakage protective device, and earth leakage protective device and circuit breaker all are in initial condition.Fig. 3 A-3D is the perspective diagram that illustrates according to the earth leakage protective device of the preferred embodiment of the utility model; It is the enlarged drawing of the frame of broken lines part of Fig. 2; But the residing position of each parts is different; Wherein Fig. 3 A illustrates this earth leakage protective device and is in initial condition and comprises that the circuit breaker of this earth leakage protective device is in the situation of first closure state, the schematic diagram of its corresponding Figure 1A; Fig. 3 B illustrates the operator when carrying out leakage tests pushes the leakage tests handle of earth leakage protective device left the leakage tests position and keeps the leakage tests handle in this leakage tests position and the situation that the main circuit free-handle of circuit breaker is not threaded off as yet; Fig. 3 C illustrates that the operator unclamps behind the hand that the leakage tests handle automatically restores to initial position and the free-handle of circuit breaker is in the situation of trip status; Fig. 3 D illustrates when leak current fault occurring in the circuit that the leakage tests handle moves to initiatively the leak current fault display position left and free-handle moves to the situation of dropout position left, the schematic diagram of this Fig. 3 D corresponding diagram 1C.
Simultaneously with reference to Figure 1A and 3A; The earth leakage protective device that is used for circuit breaker according to the embodiment of the utility model comprises: leakage tests handle 2, this leakage tests handle 2 comprise and can be stirred with the driving lever part 21 of the creepage protection function test of carrying out circuit breaker and the main part 22 that partly links to each other with this driving lever by the operator; Connecting rod 3, an end 31 of this connecting rod links to each other with the main part 22 of leakage tests handle; Slide block 4, this slide block links to each other with the other end 32 of connecting rod; Resilient, conductive member 6, this resilient, conductive member 6 connects with slide block 4; Detection of electrical leakage module 8 (not shown in Figure 1A), this detection of electrical leakage module 8 and resilient, conductive member 6 electrical communication; And power taking parts 7; Resilient, conductive member 6 can butt behind pressurized and is connected this power taking parts 7; Thereby make the electric power of power taking parts be transported to the detection of electrical leakage module via resilient, conductive member; So that the detection of electrical leakage module obtains an electric leakage triggering signal, thereby the main circuit free-handle 1 of instruction circuit breaker is threaded off.
Shown in Figure 1A and 3A; Under the situation of normal operation of circuit breaker; Leakage tests handle 2 all is in initial position I with circuit breaker tripping handle 1, and at this moment, the resilient, conductive member 6 of earth leakage protective device is broken off with power taking parts 7; And the free-handle 1 of circuit breaker is in the state of connecting main circuit, does not thread off as yet.
With reference to Figure 1B, 3B and 3C, in the time will carrying out passive leakage tests, the operator stirs leakage tests handle 2 left with hand makes it move to the passive leakage tests position II shown in the solid line from the initial position I shown in dotted line Figure 1B.Because leakage tests handle 2 is to anticlockwise, it promotes slide blocks 4 to lower slider through connecting rod 3, resilient, conductive member 6 downward butt and connect power taking parts 7 under the promotion of slide block 4.Power taking parts 7 are in electriferous state in circuit; After it and resilient, conductive member 6 connected; The electric power of power taking parts 7 is transported to the detection of electrical leakage module 8 (referring to Fig. 3 A) that is electrically connected with this resilient, conductive member 6 via resilient, conductive member 6, and therefore the detection of electrical leakage module obtains an electric leakage triggering signal, thereby the main circuit free-handle 1 of instruction circuit breaker is threaded off; That is, free-handle 1 arrives and remains on the position II shown in Figure 1B.Unidirectional arrow A among Figure 1B represent free-handle 1 can be from the position I in-position II and remain on position II, promptly Fig. 3 B is to the process of Fig. 3 C.At this moment, because staff do not discharge leakage tests handle 2 as yet, so leakage tests handle 2 temporarily remains on position II, shown in Fig. 3 B.But after the operator unclamped test handle 2, slide block 4 can upwards slide under the restoring force effect of resilient, conductive member 6, promoted connecting rod 3 drive test handles 2 simultaneously and automatically restored to initial position I, shown in Fig. 3 C.Four-headed arrow B among Figure 1B representes that the leakage tests handle can move to position II from position I, and home position I automatically.Thus, the whole leakage tests process of earth leakage protective device is accomplished.Wherein, leakage tests handle 2 can automatically restore to initial position after staff unclamps a major reason is, has formed a linkage by leakage tests handle 2, connecting rod 3 and slide block 4; The dead-centre position line of this linkage is through the line between the rotary middle point O of the tie point of connecting rod and slide block and leakage tests handle; Dead-centre position line P shown in dotted line among accompanying drawing 1B, 1C and the 3D is because when staff places position II with leakage tests handle 2, shown in Figure 1B and 3B; Connecting rod 3 is not crossed the dead-centre position line P of linkage; Therefore, under the elastic restoring force of resilient, conductive member 6, the leakage tests handle will return to initial position I.In above-mentioned test process, if after the operator places position II with leakage tests handle 2, main circuit free-handle 1 is threaded off; Promptly from the position I to the position II; The creepage protection function that then shows circuit breaker is in proper working order, otherwise, if main circuit free-handle 1 is failure to actuate; The creepage protection function that then shows circuit breaker breaks down, and should in time change or keep in repair circuit breaker.
In the accompanying drawings, resilient, conductive member 6 is depicted as a torsion spring, its have the crimping portion that is set on the fixed axis and the elongated leg of stretching out from crimping portion so that butt power taking parts 7.It should be noted that; Torsion spring only is a kind of preferred implementation of resilient, conductive member 6; The utility model is not limited to this; For example, resilient, conductive member 6 can also be a stage clip, as long as this resilient, conductive member can be conducted electricity and can provide elasticity to drive leakage tests handle 2 through slide block and connecting rod.Further, in the accompanying drawings, leakage tests handle 2 is depicted as a rotary handle, and is different fully with traditional pressing button as the leakage tests handle with rotary handle thus, will bring brand-new operating experience to the user.
Notice that in passive leakage tests process, the driver part 5 in order to driving sliding block 4 illustrated in the accompanying drawings (it will be described below) is not worked, and in other words, in the aforementioned embodiments of the utility model, can not need this driver part.
In the preferred embodiment of the utility model; Whether in order to make circuit breaker to know main circuit free-handle 1 dropout relief user is because electric leakage has caused this dropout; Promptly make circuit breaker have passive leakage tests function and active leak current fault Presentation Function simultaneously; Preferably; On the basis of above-mentioned parts, this driver part driving sliding block pressed down resilient, conductive member when earth leakage protective device further comprised driver part 5 with generation leak current fault in circuit, so that resilient, conductive member abuts to the power taking parts and connects with the power taking parts.
Shown in Figure 1A-1C, 3A-3D, in order to cooperate this active leak current fault Presentation Function, preferably, the main part 22 of leakage tests handle 2 has groove 221, and an end 31 of connecting rod 3 is connected in this groove 221, and can in this groove, slide.Shown in Figure 1B, groove 221 has two parts, promptly is positioned at the first and the second portion that is positioned at dead-centre position line P below of dead-centre position line P top.
With reference to Fig. 1 C and 3D, when detection of electrical leakage module 8, it is shown in the drawings to be a circuit board; When detecting leakage current, it sends a drive signal to driver part 5, after driver part 5 receives drive signal; Driving its push rod 51 releases downwards fast; Thereby promote slide block 4 and press down resilient, conductive member 6 to lower slider, drivening rod 3 slides in the groove 221 of test handle 2 simultaneously, when arriving certain position, drives test handle 2 to anticlockwise; Slide block 4 slides down to dead-centre position line P under inertial force; This moment connecting rod 3 an end 31 receive simultaneously that slide block 4 applies along second portion applied pressure on the groove 221 of the power of connecting rod direction and test handle 2, the making a concerted effort of two power impel an end 31 of connecting rod 3 to continue to move downward, and then make connecting rod 3 cross the dead-centre position line P of linkage; Touch power taking parts 7 downwards behind resilient, conductive member 6 pressurizeds simultaneously, the free-handle 1 that triggers circuit breaker behind the connection circuit is to the anticlockwise open circuit.Then; Push rod 51 fast retractiles of driver part 5; Slide block 4 is attempted to move upward in the elastic restoring force effect of resilient, conductive member 6; Because connecting rod 3 crossed dead-centre position line P, so leakage tests handle 2 can not turn back to initial position as the same in aforesaid passive earth leakage protective test under connecting rod 3 acts on, but remains on the active leak current fault display position III shown in Fig. 1 C and 3D.Notice; Initiatively leak current fault display position III reality is same position with passive leakage tests position II, still, and when generation active leak current fault is threaded off; Leakage tests handle 2 remains on said position and can not turn back to initial position I; And when carrying out passive leakage tests, leakage tests handle 2 only is to remain on passive leakage tests position provisionally, after staff unclamps, can automatically return to initial position.When the user when making an inspection tour circuit breaker, remain on initiatively leak current fault display position III if find leak current fault free-handle 2, then know and occurred electric leakage in the circuit.
After fixing a breakdown, when needing to recover the use of circuit breaker, promote circuit breaker tripping handle 1 to the right with hand and get final product with leakage tests handle 2.Correspondingly, leakage tests handle 2 is with drivening rod 3 motions, and then entire mechanism will return to the initial condition shown in Figure 1A or 3A.
It should be noted that; In above-mentioned difunctional (being passive leakage tests function and active leak current fault Presentation Function) execution mode of the utility model; The enforcement of the passive leakage tests function among the enforcement of passive leakage tests function and the aforesaid single function embodiment (promptly only have passive leakage tests function and do not have initiatively leak current fault Presentation Function) is identical; Therefore, for all parts that passive leakage tests relates to, difunctional embodiment and single function embodiment can be in full accord; Therefore, how to carry out leak current fault dropout test at this difunctional embodiment that repeats no more.
Although on basis with reference to each embodiment; The utility model is described in specification and is illustrated in the accompanying drawings; But it will be appreciated by those skilled in the art that; The foregoing description only is preferred embodiment, and some technical characterictic among the embodiment possibly not be essential for solving specific technical problem, thereby can not or omit these technical characterictics and the solution of non-influence technique problem or the formation of technical scheme; And the characteristic of an embodiment, key element and/or function can suitably make up, combine or cooperate with characteristic, key element and/or the function of other one or more embodiment each other, only if this combination, combination or cooperation obviously can not be implemented.
Claims (10)
1. an earth leakage protective device that is used for circuit breaker is characterized in that, this earth leakage protective device comprises:
Leakage tests handle, this leakage tests handle comprise and can be stirred with the driving lever part of the creepage protection function test of carrying out circuit breaker and the main part that partly links to each other with this driving lever by the operator;
Connecting rod, an end of this connecting rod links to each other with the said main part of said leakage tests handle;
Slide block, this slide block links to each other with the other end of said connecting rod;
Resilient, conductive member, this resilient, conductive member and said slide block connect;
The detection of electrical leakage module, this detection of electrical leakage module and said resilient, conductive member electrical communication; And
The power taking parts; Said resilient, conductive member can butt behind pressurized and is connected this power taking parts; Thereby make the electric power of said power taking parts be transported to said detection of electrical leakage module via said resilient, conductive member; So that said detection of electrical leakage module obtains an electric leakage triggering signal, thereby instruction circuit breaker tripping.
2. earth leakage protective device as claimed in claim 1; It is characterized in that; This driver part drove said slide block and presses down said resilient, conductive member when this earth leakage protective device also comprised driver part with generation leak current fault in circuit, so that said resilient, conductive member abuts to said power taking parts and connects with said power taking parts.
3. according to claim 1 or claim 2 earth leakage protective device is characterized in that said resilient, conductive member is torsion spring or stage clip.
4. according to claim 1 or claim 2 earth leakage protective device is characterized in that said leakage tests handle is a rotary handle.
5. according to claim 1 or claim 2 earth leakage protective device is characterized in that the said main part of said leakage tests handle has groove, and an end of said connecting rod is connected in this groove, and can in this groove, slide.
6. earth leakage protective device as claimed in claim 1 is characterized in that, said leakage tests handle has initial position and passive leakage tests position; Under the situation of normal operation of circuit breaker, said leakage tests handle is in this initial position, and said resilient, conductive member and the disconnection of said power taking parts; Pushed this passive leakage tests position when carrying out leakage tests at this leakage tests handle by the operator; Said resilient, conductive member and said power taking parts are connected to cause circuit breaker tripping; And after this leakage tests handle was discharged by the operator, this leakage tests handle automatically restored to said initial position under the elastic force of said resilient, conductive member.
7. earth leakage protective device as claimed in claim 2; It is characterized in that; Said leakage tests handle has initial position, passive leakage tests position and active leak current fault display position, and wherein this passive leakage tests position is a same position with active leak current fault display position; Under the situation of normal operation of circuit breaker, said leakage tests handle is in this initial position, and said resilient, conductive member and the disconnection of said power taking parts; Pushed this passive leakage tests position when carrying out leakage tests at this leakage tests handle by the operator; Said resilient, conductive member and said power taking parts are connected to cause circuit breaker tripping; And after this leakage tests handle was discharged by the operator, this leakage tests handle automatically restored to said initial position under the elastic force of said resilient, conductive member; In when, in circuit leak current fault taking place; Said driver part drives said slide block and presses down said resilient, conductive member; So that said resilient, conductive member and said power taking parts connect causing circuit breaker tripping, and the said connecting rod that moves through of said slide block drives said leakage tests handle and moves to said active leak current fault display position and remain on this active leak current fault display position so that leak current fault to take place the display circuit from said initial position.
8. earth leakage protective device as claimed in claim 6; It is characterized in that; The said main part of said leakage tests handle has groove, and an end of said connecting rod is connected in this groove, and can in this groove, slide; Said groove has first and second portion; When said leakage tests handle was in said passive leakage tests position, a said end of said connecting rod was arranged in this first, and said connecting rod is not crossed the dead-centre position line of the linkage of being made up of said leakage tests handle, said connecting rod and said slide block.
9. earth leakage protective device as claimed in claim 7; It is characterized in that the said main part of said leakage tests handle has groove, an end of said connecting rod is connected in this groove; And can in this groove, slide, said groove has first and second portion; When said leakage tests handle is in said passive leakage tests position; A said end of said connecting rod is arranged in this first, and said connecting rod is not crossed the dead-centre position line of the linkage of being made up of said leakage tests handle, said connecting rod and said slide block; When said leakage tests handle was in said active leak current fault display position, a said end of said connecting rod was arranged in this second portion, and said connecting rod is crossed the said dead-centre position line of said linkage.
10. a circuit breaker is characterized in that, this circuit breaker comprises the described earth leakage protective device like one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120404018XU CN202307752U (en) | 2011-10-21 | 2011-10-21 | Electricity leakage protection device and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120404018XU CN202307752U (en) | 2011-10-21 | 2011-10-21 | Electricity leakage protection device and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202307752U true CN202307752U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120404018XU Withdrawn - After Issue CN202307752U (en) | 2011-10-21 | 2011-10-21 | Electricity leakage protection device and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202307752U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065899A (en) * | 2011-10-21 | 2013-04-24 | 施耐德电器工业公司 | Electric leakage protector and circuit breaker |
| CN104979142A (en) * | 2014-04-11 | 2015-10-14 | 施耐德电器工业公司 | Release and breaker with release |
-
2011
- 2011-10-21 CN CN201120404018XU patent/CN202307752U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065899A (en) * | 2011-10-21 | 2013-04-24 | 施耐德电器工业公司 | Electric leakage protector and circuit breaker |
| CN103065899B (en) * | 2011-10-21 | 2015-12-30 | 施耐德电器工业公司 | Earth leakage protective device and circuit breaker |
| CN104979142A (en) * | 2014-04-11 | 2015-10-14 | 施耐德电器工业公司 | Release and breaker with release |
| CN104979142B (en) * | 2014-04-11 | 2017-03-29 | 施耐德电器工业公司 | Electrical apparatus release and the chopper with electrical apparatus release |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20151230 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |