CN103065899A - Electric leakage protector and circuit breaker - Google Patents
Electric leakage protector and circuit breaker Download PDFInfo
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- CN103065899A CN103065899A CN2011103223811A CN201110322381A CN103065899A CN 103065899 A CN103065899 A CN 103065899A CN 2011103223811 A CN2011103223811 A CN 2011103223811A CN 201110322381 A CN201110322381 A CN 201110322381A CN 103065899 A CN103065899 A CN 103065899A
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Abstract
The invention provides an electric leakage protector used in a circuit breaker. The electric leakage protector comprises an electric leakage testing handle, a connecting rod, a sliding block, an elastic electric conducting component, an electric leakage testing module, and an electricity-obtaining component, wherein the electric leakage testing handle comprises a pulling bar part which can be pulled by an operator to conduct electric leakage protective function test of the circuit breaker and a main body part which is connected with the pulling bar part, one end of the connecting bar is connected with the main body part of the electric leakage testing handle, the sliding block is connected with the other end of the connecting bar, the elastic electric conducting component is abutted against the sliding block, the electric leakage testing module is communicated with the elastic electric conducting component in an electric mode, and the elastic electric conducting component is abutted against and communicated with the electricity-obtaining component after receiving voltage so that electricity of the electricity-obtaining component is transmitted to the electric leakage testing module through the elastic electric conducting component, the electric leakage testing module can obtain an electric leakage triggering signal to instruct the circuit breaker to drop out. The invention further provides the circuit breaker which comprises the above electric leakage protector.
Description
Technical field
The present invention relates to a kind of electric equipment products, particularly, relate 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): should have residual current of an experimental rig simulation on the residual current action breaker of overcurrent protection by 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 to carry out the test of creepage protection function of circuit breaker, the user depressed testing button, and this testing button is correspondingly pressed 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, it is 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, in this case, the electric-leakage detection circuit plate will obtain a leakage trigger signal, thereby trigger actuator so that the main circuit free-handle of circuit breaker is threaded off.Pass through aforesaid operations; simulated the creepage protection function of circuit breaker when in circuit, leak current fault occuring; specifically, the power taking parts are given electricity to the leakage tests circuit board, have been equivalent to simulate the situation that leak current fault occurs in the circuit; if the user is after pressing testing button; the main circuit free-handle of circuit breaker disconnects, 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 disconnect, 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 all parts and circuit breaker and is unfavorable for the Miniaturization Design of circuit breaker.Therefore, have a kind of demand, that is, need to provide a kind of earth leakage protective device of novel structure, it is conducive to the Miniaturization Design of circuit breaker.
In addition; after circuit breaker is threaded off; the user wish to know owing to exist the electric leakage situation caused circuit breaker tripping or 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 (because the circuit existence electric leakage of the own leak current fault Presentation Function of 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, have the leakage tests button at the earth leakage protective device shell of circuit breaker, as discussed earlier, the user can and relevant realize the creepage protection function test such as resilient, conductive member, electric-leakage detection circuit plate and power taking parts by this button.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 occured in the circuit, another set of active earth leakage protective mechanism started, thereby so that colour code demonstrates specific color, 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 occured 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, and the mechanism of its relative complex also so that the useful life of circuit breaker and stability be affected.Therefore, have a kind of demand, that is, provide a kind of earth leakage protective device of novel structure, its aforementioned two functions with circuit breaker realize by a cover mechanism.
Summary of the invention
According to above-mentioned shortcoming and defect, the objective of the invention is to solve at least the above-mentioned problems in the prior art.
In one embodiment of the invention, a kind of earth leakage protective device for circuit breaker is provided, this earth leakage protective device comprises: the dead man part that leakage tests handle, this leakage tests handle comprise the creepage protection function test of can the person of being operated stirring to carry out circuit breaker and the main part that partly links to each other with this dead man; 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 so that the electric power of power taking parts is transported to the detection of electrical leakage module via resilient, conductive member, so that the detection of electrical leakage module obtains a leakage trigger signal, thus the instruction circuit breaker tripping.Thus; earth leakage protective device of the present invention is by adopting the linkage that is comprised of leakage tests handle, connecting rod and slide block to realize the leakage tests function; this is not adopt in the prior art; and linkage is so that the structural design of earth leakage protective device is more flexible, thereby is conducive to the Miniaturization Design of circuit breaker.
In the above embodiment of the present invention; preferably; this driver part drove slide block and presses 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, earth leakage protective device of the present invention adopts the novel structure of a cover to have simultaneously leakage tests function and active leak current fault Presentation Function.
In above-mentioned arbitrary embodiment of the present invention, preferably, resilient, conductive member is torsion spring or stage clip.
In above-mentioned arbitrary embodiment of the present invention, preferably, the leakage tests handle is rotary handle.Thus, with rotary handle as the leakage tests handle from traditional to press button fully different, will bring brand-new operating experience to the user.
In above-mentioned arbitrary embodiment of the present invention, preferably, the main part of leakage tests handle has groove, and an end of connecting rod is connected in this groove, and can slide in this groove.
In above-mentioned arbitrary embodiment of the present invention, 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; Pull out this passive leakage tests position when carrying out leakage tests this leakage tests handle person of being operated, resilient, conductive member and power taking parts connect to cause circuit breaker tripping, and after this leakage tests handle person of being operated discharged, 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 present invention, 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 and active leak current fault display position are same 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; Pull out this passive leakage tests position when carrying out leakage tests this leakage tests handle person of being operated, resilient, conductive member and power taking parts connect to cause circuit breaker tripping, and after this leakage tests handle person of being operated discharged, this leakage tests handle automatically restored to initial position under the elastic force of resilient, conductive member; In when, in circuit leak current fault occuring, driver part drives slide block and presses down resilient, conductive member, so that resilient, conductive member and power taking parts connect to cause circuit breaker tripping, and the motion of slide block so that 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 occur 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 and active leak current fault Presentation Function are achieved in same set of mechanism.
In above-mentioned arbitrary embodiment of the present invention, 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 that is comprised 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 present invention, preferably, the main part of leakage tests handle has groove, and an end of connecting rod is connected in this groove, and can slide in this groove, 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 that is comprised 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 occured, connecting rod had been crossed the dead-centre position line of linkage, therefore, after the leakage tests handle person of being operated discharges, the leakage tests handle can't return to initial position, but remain on initiatively leak current fault display position.
In an embodiment of the present invention, provide a kind of circuit breaker, 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 invention.
Description of drawings
Above-mentioned and the further feature of exemplary embodiment of the present invention and advantage will become more obvious from following detailed description with the accompanying drawing, and this description and accompanying drawing only be used for illustrative purpose rather than limit the scope of the invention by any way, wherein:
Figure 1A-1C is the schematic diagram that the operation principle of earth leakage protective device according to a preferred embodiment of the invention is shown; 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 with the leakage tests handle of earth leakage protective device pulls out the leakage tests position left 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 is the perspective diagram that the circuit breaker that comprises earth leakage protective device according to a preferred embodiment of the invention is shown, and wherein the dotted line frame surrounds 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 earth leakage protective device according to a preferred embodiment of the invention is shown; it is the enlarged drawing of the dotted line frame part of Fig. 2; but the residing position of all 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 pulls out 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 yet threaded off; 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 present invention is described below with reference to accompanying drawings.
About aforementioned and other technology contents, characteristics and effect of the present invention,, can clearly present with reference to the accompanying drawings in the detailed description to embodiment in following cooperation.In front and the direction term of mentioning in the following description, such as: upper and lower, left and right, front or rear etc., only be direction with reference to the accompanying drawings.Therefore, the direction term of use is to illustrate not to be to limit the present invention.In addition, in whole embodiment, identical drawing reference numeral represents identical element.
At first; need to prove; the invention accompanying drawing 1A-3D shown in be a kind of particularly preferred embodiment; wherein earth leakage protective device has passive leakage tests function concurrently (as previously mentioned simultaneously; for convenience; electric leakage in the leakage tests is called " passive electric leakage ") and active leak current fault Presentation Function is (as previously mentioned; for convenience; the electric leakage that occurs in the circuit is called " initiatively electric leakage " in this description); and show the preferred structure of all parts; but; those skilled in the art are to be understood that; above-described embodiment only is exemplary preferred implementation, and some technical characterictic among the embodiment may not be essential for solving specific technical problem, thereby can not have or omit these technical characterictics and the formation of non-influence technique solution of problem or technical scheme.Specifically, for example, earth leakage protective device of the present invention 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 schematic diagram that the operation principle of earth leakage protective device according to a preferred embodiment of the invention is shown; 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 with the leakage tests handle of earth leakage protective device pulls out the leakage tests position left 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 is the perspective diagram that the circuit breaker that comprises earth leakage protective device according to a preferred embodiment of the invention is shown, and wherein the dotted line frame surrounds 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 earth leakage protective device according to a preferred embodiment of the invention is shown, it is the enlarged drawing of the dotted line frame part of Fig. 2, but the residing position of all 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 pulls out 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 yet threaded off; 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, earth leakage protective device for circuit breaker according to an embodiment of the invention comprises: the dead man part 21 that leakage tests handle 2, this leakage tests handle 2 comprise the creepage protection function test of can the person of being operated stirring to carry out circuit breaker and the main part 22 that partly links to each other with this dead man; 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 so that the electric power of power taking parts is transported to the detection of electrical leakage module via resilient, conductive member, so that the detection of electrical leakage module obtains a leakage trigger signal, thereby the main circuit free-handle of instruction circuit breaker 1 is threaded off.
Shown in Figure 1A and 3A; under the situation of normal operation of circuit breaker; leakage tests handle 2 and circuit breaker tripping handle 1 all are in initial position I; at this moment; the resilient, conductive member 6 of earth leakage protective device disconnects with power taking parts 7; and the free-handle 1 of circuit breaker is in the state of connecting main circuit, not yet threads off.
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 down slidings by 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, therefore the detection of electrical leakage module obtains a leakage trigger signal, thereby the main circuit free-handle of instruction circuit breaker 1 is threaded off, that is, free-handle 1 arrives and remains on position II as shown in Figure 1B.Unidirectional arrow A among Figure 1B represents that free-handle 1 can and remain on position II from position I in-position II, and namely Fig. 3 B is to the process of Fig. 3 C.At this moment, because staff not yet discharges leakage tests handle 2, 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 meetings upward sliding under the restoring force effect of resilient, conductive member 6 promoted simultaneously connecting rod 3 drive test handles 2 and automatically restores to initial position I, shown in Fig. 3 C.Four-headed arrow B among Figure 1B represents that the leakage tests handle can move to position II from position I, and can auto-returned position I.Thus, the whole leakage tests process of earth leakage protective device is finished.Wherein, leakage tests handle 2 can automatically restore to initial position after staff unclamps a major reason is, by leakage tests handle 2, connecting rod 3 and slide block 4 have formed a linkage, the dead-centre position line of this linkage is by the line between the rotary middle point O of the tie point of connecting rod and slide block and leakage tests handle, such as accompanying drawing 1B, dead-centre position line P among 1C and the 3D shown in the dotted line, 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; after if the operator places position II with leakage tests handle 2; main circuit free-handle 1 is threaded off; namely from position I to position II; the creepage protection function that then shows circuit breaker is working properly, 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 present invention is not limited to this, for example, resilient, conductive member 6 can also be stage clip, as long as this resilient, conductive member can be conducted electricity and can provide elasticity to drive leakage tests handle 2 by slide block and connecting rod.Further, in the accompanying drawings, leakage tests handle 2 is depicted as a rotary handle, thus, with rotary handle as the leakage tests handle from traditional to press button fully different, will bring brand-new operating experience to the user.
Notice, in passive leakage tests process, illustrated in the accompanying drawingsly do not work in order to the driver part 5 (it will be described below) that drives slide block 4, in other words, in the aforementioned embodiments of the present invention, can not need this driver part.
In a preferred embodiment of the invention; for so that circuit breaker can also whether know because electric leakage has caused this dropout main circuit free-handle 1 dropout relief user; namely so that circuit breaker has passive leakage tests function and active leak current fault Presentation Function simultaneously; preferably; on the basis of above-mentioned parts; this driver part drove slide block and presses 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 slide in this groove.As shown in Figure 1B, groove 221 has two parts, namely 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 one to driver part 5 and drives signal, after driver part 5 receives and drives signal, driving its push rod 51 releases downwards fast, thereby promote slide block 4 down slidings and press down resilient, conductive member 6, drivening rod 3 slides in the groove 221 of test handle 2 simultaneously, when arriving certain position, drive 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 be subject to 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 so that connecting rod 3 is crossed the dead-centre position line P of linkage, touch power taking parts 7 under while resilient, conductive member 6 pressurizeds are backward, trigger the free-handle 1 of circuit breaker to the anticlockwise open circuit behind the connection 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 has been crossed dead-centre position line P; therefore 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, but, when initiatively leak current fault dropout occurs, leakage tests handle 2 remains on described 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 provisionally passive leakage tests position, can automatically return to initial position after staff unclamps.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 need recovering the use of circuit breaker, promote circuit breaker tripping handle 1 to the right and leakage tests handle 2 gets final product with hand.Correspondingly, leakage tests handle 2 is with drivening rod 3 motions, and then whole 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) of the present invention execution mode, the enforcement of the passive leakage tests function in the enforcement of passive leakage tests function and the aforesaid single Function implementation example (namely only have passive leakage tests function and do not have initiatively leak current fault Presentation Function) is identical, therefore, all parts that relate to for passive leakage tests, difunctional embodiment and single Function implementation example can be in full accord, therefore, do not repeat them here difunctional embodiment and how to carry out leak current fault dropout test.
Although on the basis with reference to each embodiment, the present invention is described in specification and is illustrated in the accompanying drawings, but it will be appreciated by those skilled in the art that, above-described embodiment only is preferred embodiment, some technical characterictic among the embodiment may not be essential for solving specific technical problem, thereby can not have or omit these technical characterictics and the formation of non-influence technique solution of problem or technical scheme; And, the feature of an embodiment, key element and/or function can with the suitably mutually combination of feature, key element and/or the function of other one or more embodiment, in conjunction with or cooperates, unless this combination, combination or cooperation obviously can not be implemented.
Claims (10)
1. earth leakage protective device that is used for circuit breaker is characterized in that this earth leakage protective device comprises:
The dead man part that leakage tests handle, this leakage tests handle comprise the creepage protection function test of can the person of being operated stirring to carry out circuit breaker and the main part that partly links to each other with this dead man;
Connecting rod, an end of this connecting rod links to each other with the described main part of described leakage tests handle;
Slide block, this slide block links to each other with the other end of described connecting rod;
Resilient, conductive member, this resilient, conductive member and described slide block connect;
The detection of electrical leakage module, this detection of electrical leakage module and described resilient, conductive member electrical communication; And
The power taking parts, described resilient, conductive member can butt behind pressurized and is connected this power taking parts, thereby so that the electric power of described power taking parts is transported to described detection of electrical leakage module via described resilient, conductive member, so that described detection of electrical leakage module obtains a leakage trigger 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 described slide block and presses down described resilient, conductive member when this earth leakage protective device also comprised driver part with generation leak current fault in circuit, so that described resilient, conductive member abuts to described power taking parts and connects with described power taking parts.
3. earth leakage protective device as claimed in claim 1 or 2 is characterized in that, described resilient, conductive member is torsion spring or stage clip.
4. earth leakage protective device as claimed in claim 1 or 2 is characterized in that, described leakage tests handle is rotary handle.
5. earth leakage protective device as claimed in claim 1 or 2 is characterized in that, the described main part of described leakage tests handle has groove, and an end of described connecting rod is connected in this groove, and can slide in this groove.
6. earth leakage protective device as claimed in claim 1 is characterized in that, described leakage tests handle has initial position and passive leakage tests position; Under the situation of normal operation of circuit breaker, described leakage tests handle is in this initial position, and described resilient, conductive member and the disconnection of described power taking parts; Pull out this passive leakage tests position when carrying out leakage tests this leakage tests handle person of being operated, described resilient, conductive member and described power taking parts connect to cause circuit breaker tripping, and after this leakage tests handle person of being operated discharged, this leakage tests handle automatically restored to described initial position under the elastic force of described resilient, conductive member.
7. earth leakage protective device as claimed in claim 2, it is characterized in that, described leakage tests handle has initial position, passive leakage tests position and active leak current fault display position, and wherein this passive leakage tests position and active leak current fault display position are same position; Under the situation of normal operation of circuit breaker, described leakage tests handle is in this initial position, and described resilient, conductive member and the disconnection of described power taking parts; Pull out this passive leakage tests position when carrying out leakage tests this leakage tests handle person of being operated, described resilient, conductive member and described power taking parts connect to cause circuit breaker tripping, and after this leakage tests handle person of being operated discharged, this leakage tests handle automatically restored to described initial position under the elastic force of described resilient, conductive member; In when, in circuit leak current fault occuring, described driver part drives described slide block and presses down described resilient, conductive member, so that described resilient, conductive member and described power taking parts connect to cause circuit breaker tripping, and the described connecting rod that moves through of described slide block drives described leakage tests handle and moves to described active leak current fault display position and remain on this active leak current fault display position so that leak current fault to occur the display circuit from described initial position.
8. earth leakage protective device as claimed in claim 6; it is characterized in that; the described main part of described leakage tests handle has groove; one end of described connecting rod is connected in this groove; and can in this groove, slide; described groove has first and second portion; when described leakage tests handle is in described passive leakage tests position; a described end of described connecting rod is arranged in this first, and described connecting rod is not crossed the dead-centre position line of the linkage that is comprised of described leakage tests handle, described connecting rod and described slide block.
9. earth leakage protective device as claimed in claim 7, it is characterized in that the described main part of described leakage tests handle has groove, an end of described connecting rod is connected in this groove, and can in this groove, slide, described groove has first and second portion; When described leakage tests handle is in described passive leakage tests position, a described end of described connecting rod is arranged in this first, and described connecting rod is not crossed the dead-centre position line of the linkage that is comprised of described leakage tests handle, described connecting rod and described slide block; When described leakage tests handle was in described active leak current fault display position, a described end of described connecting rod was arranged in this second portion, and described connecting rod is crossed the described dead-centre position line of described linkage.
10. a circuit breaker is characterized in that, this circuit breaker comprises the described earth leakage protective device such as one of claim 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110322381.1A CN103065899B (en) | 2011-10-21 | 2011-10-21 | Earth leakage protective device and circuit breaker |
| HK13107301.4A HK1180102A1 (en) | 2011-10-21 | 2013-06-24 | A leakage protective device and a circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110322381.1A CN103065899B (en) | 2011-10-21 | 2011-10-21 | Earth leakage protective device and circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103065899A true CN103065899A (en) | 2013-04-24 |
| CN103065899B CN103065899B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110322381.1A Active CN103065899B (en) | 2011-10-21 | 2011-10-21 | Earth leakage protective device and circuit breaker |
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| Country | Link |
|---|---|
| CN (1) | CN103065899B (en) |
| HK (1) | HK1180102A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106932713A (en) * | 2017-02-21 | 2017-07-07 | 惠州金源精密自动化设备有限公司 | Relay test set |
| CN107393771A (en) * | 2017-08-24 | 2017-11-24 | 乐清市也为电气有限公司 | A kind of experimental rig power taking structure of RCCB |
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| CN2777745Y (en) * | 2004-07-26 | 2006-05-03 | 浙江德力西电器股份有限公司 | Operating mechanism for small circuit breaker |
| CN201084671Y (en) * | 2007-09-17 | 2008-07-09 | 温州市新蓝天电器有限公司 | A circuit breaker with a protector against leakage, overload and short circuit |
| GB2447147A (en) * | 2007-03-01 | 2008-09-03 | Siemens Ag | Circuit breaker |
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| US20030016101A1 (en) * | 2001-03-19 | 2003-01-23 | Frantz Germain | Lockout mechanism for residual current devices |
| CN2777745Y (en) * | 2004-07-26 | 2006-05-03 | 浙江德力西电器股份有限公司 | Operating mechanism for small circuit breaker |
| GB2447147A (en) * | 2007-03-01 | 2008-09-03 | Siemens Ag | Circuit breaker |
| CN201084671Y (en) * | 2007-09-17 | 2008-07-09 | 温州市新蓝天电器有限公司 | A circuit breaker with a protector against leakage, overload and short circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106932713A (en) * | 2017-02-21 | 2017-07-07 | 惠州金源精密自动化设备有限公司 | Relay test set |
| CN106932713B (en) * | 2017-02-21 | 2019-08-20 | 惠州金源精密自动化设备有限公司 | Relay test set |
| CN107393771A (en) * | 2017-08-24 | 2017-11-24 | 乐清市也为电气有限公司 | A kind of experimental rig power taking structure of RCCB |
| CN107393771B (en) * | 2017-08-24 | 2019-11-08 | 乐清市也为电气有限公司 | A kind of experimental rig power taking structure of leakage circuit breakers |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1180102A1 (en) | 2013-10-11 |
| CN103065899B (en) | 2015-12-30 |
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