CN103065899B - Earth leakage protective device and circuit breaker - Google Patents
Earth leakage protective device and circuit breaker Download PDFInfo
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- CN103065899B CN103065899B CN201110322381.1A CN201110322381A CN103065899B CN 103065899 B CN103065899 B CN 103065899B CN 201110322381 A CN201110322381 A CN 201110322381A CN 103065899 B CN103065899 B CN 103065899B
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Abstract
A kind of earth leakage protective device for circuit breaker is provided, this earth leakage protective device comprises: leakage tests handle, and this leakage tests handle comprises the dead man part can being stirred to carry out the creepage protection function test of circuit breaker by operator and the main part be connected with this dead man part; Connecting rod, one end of this connecting rod is connected with the main part of leakage tests handle; Slide block, this slide block is connected with the other end of connecting rod; Resilient, conductive member, this resilient, conductive member and slide block abut against; 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 abut and connect this power taking parts after pressurized, thus make the electric power of power taking parts be transported to detection of electrical leakage module via resilient, conductive member, to make detection of electrical leakage module obtain a leakage trigger signal, thus instruction circuit breaker tripping.A kind of circuit breaker comprising aforementioned electrical leakage protective device is also provided.
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
GB GB and IEC standard regulation (clause 8.11 in GB16917.1-2003; clause 8.11 in IEC61009-1:2003): should have an experimental rig and simulate a residual current by checkout gear so that the Motor ability of regular detection residual current device on the residual current action breaker of band overcurrent protection, the earth leakage protective device therefore with earth leakage protective test function and the circuit breaker with such earth leakage protective device arise 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 user needs the test of the creepage protection function carrying out circuit breaker, user depresses testing button, and this testing button correspondingly presses resilient, conductive member, and this resilient, conductive member correspondingly touches power taking parts.Due to when circuit breaker is installed in circuit, power taking parts are in electriferous state, also it is correspondingly charged after resilient, conductive member touches power taking parts, the electric-leakage detection circuit plate be electrically connected with resilient, conductive member is thus given electricity, in this case, electric-leakage detection circuit plate is by acquisition one leakage trigger signal, thus toggle actuator makes the main circuit free-handle of circuit breaker thread off.Pass through aforesaid operations; simulate the creepage protection function of circuit breaker when there is leak current fault in circuit; specifically, power taking parts give electricity to leakage tests circuit board, are equivalent to simulate in circuit the situation that leak current fault occurs; if user is after pressing testing button; the main circuit free-handle of circuit breaker disconnects, then show that the creepage protection function of circuit breaker is normal, otherwise; if the main circuit free-handle of circuit breaker does not disconnect, then show that creepage protection function lost efficacy.
But above-mentioned creepage protection function mechanism for testing of the prior art is often 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, there is a kind of demand, that is, need the earth leakage protective device providing a kind of novel structure, it is conducive to the Miniaturization Design of circuit breaker.
In addition, after circuit breaker is threaded off, user wishes to know and result in circuit breaker tripping owing to there is drain conditions or other reason such as overcurrent result in circuit breaker tripping, therefore, circuit breakers more of the prior art have earth leakage protective test function (because the electric leakage in test is artificial generation simultaneously, itself there is not electric leakage in circuit, therefore it also can be called " passive " leakage tests function in the following description) and the leak current fault Presentation Function of circuit own (due to circuit itself exist electric leakage, therefore it also can be called " initiatively " leak current fault Presentation Function in the following description), these two functions are realized by the two different mechanisms of cover respectively.Specifically, the earth leakage protective device shell of circuit breaker has leakage tests button, as discussed earlier, user can realize creepage protection function test by this button and relevant such as resilient, conductive member, electric-leakage detection circuit plate and power taking parts.The shell of earth leakage protective device also has another leak current fault display unit, it typically is a colour code or button.When there is leak current fault in circuit, another set of active earth leakage protective mechanism starts, thus makes colour code demonstrate specific color, or button is in different positions.Demonstrate specific color when user observes colour code, or when button is in the anomaly of different positions, can knows in circuit and there occurs leak current fault.
But, because passive leakage tests function of the prior art is realized by the two different mechanisms of cover respectively with active leak current fault Presentation Function, it is unfavorable for the Miniaturization Design of circuit breaker, also be unfavorable for that the cost of circuit breaker reduces, and the mechanism of its relative complex also makes the useful life of circuit breaker and stability be affected.Therefore, there is a kind of demand, that is, provide a kind of earth leakage protective device of novel structure, aforementioned two functions of circuit breaker are realized by a set of mechanism by it.
Summary of the invention
According to above-mentioned shortcoming and defect, the object of the invention is at least to solve 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: leakage tests handle, and this leakage tests handle comprises the dead man part can being stirred to carry out the creepage protection function test of circuit breaker by operator and the main part be connected with this dead man part; Connecting rod, one end of this connecting rod is connected with the main part of leakage tests handle; Slide block, this slide block is connected with the other end of connecting rod; Resilient, conductive member, this resilient, conductive member and slide block abut against; 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 abut and connect this power taking parts after pressurized, thus make the electric power of power taking parts be transported to detection of electrical leakage module via resilient, conductive member, to make detection of electrical leakage module obtain a leakage trigger signal, thus instruction circuit breaker tripping.Thus; earth leakage protective device of the present invention realizes leakage tests function by adopting the linkage be made up of leakage tests handle, connecting rod and slide block; this is do not adopt in the prior art; and linkage makes the structural design of earth leakage protective device more flexible, thus is conducive to the Miniaturization Design of circuit breaker.
In the above embodiment of the present invention; preferably; when this earth leakage protective device can also comprise driver part there is leak current fault in circuit, this driver part drives slide block to press down resilient, conductive member, abuts to power taking parts and connect with power taking parts to make resilient, conductive member.Thus, earth leakage protective device of the present invention adopts the structure of a set of novelty to have leakage tests function and active leak current fault Presentation Function simultaneously.
In above-mentioned any embodiment of the present invention, preferably, resilient, conductive member is torsion spring or stage clip.
In above-mentioned any embodiment of the present invention, preferably, leakage tests handle is rotary handle.Thus, the pressing button using rotary handle as leakage tests handle from traditional is completely different, brings brand-new operating experience by user.
In above-mentioned any embodiment of the present invention, preferably, the main part of leakage tests handle has groove, and one end of connecting rod is connected in this groove, and can slide in this groove.
In above-mentioned any embodiment of the present invention, preferably, leakage tests handle has initial position and passive leakage tests position; When normal operation of circuit breaker, leakage tests handle is in this initial position, and resilient, conductive member and power taking parts disconnect; When this leakage tests handle is pulled out this passive leakage tests position to carry out leakage tests by operator, resilient, conductive member and power taking parts connect to cause circuit breaker tripping, and after this leakage tests handle is discharged by operator, this leakage tests handle automatically restores 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 any embodiment of the present invention, preferably, 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; When normal operation of circuit breaker, leakage tests handle is in this initial position, and resilient, conductive member and power taking parts disconnect; When this leakage tests handle is pulled out this passive leakage tests position to carry out leakage tests by operator, resilient, conductive member and power taking parts connect to cause circuit breaker tripping, and after this leakage tests handle is discharged by operator, this leakage tests handle automatically restores to initial position under the elastic force of resilient, conductive member; When there is leak current fault in circuit, driver part drives slide block to press down resilient, conductive member, to make resilient, conductive member and power taking parts connect to cause circuit breaker tripping, and the motion of slide block makes leakage tests handle move to active leak current fault display position from initial position and remain on this active leak current fault display position there is leak current fault display circuit.Thus, leakage tests handle has leakage tests function and active leak current fault tripping indication function concurrently simultaneously, and correspondingly, leakage tests function and the active leak current fault Presentation Function of earth leakage protective device are achieved in same set of mechanism.
In above-mentioned any 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 slide in this groove, groove has Part I and Part II, when leakage tests handle is in passive leakage tests position, one end of connecting rod is arranged in this Part I, and the dead-centre position line of the linkage be made up of leakage tests handle, connecting rod and slide block do not crossed by connecting rod.Because the dead-centre position line of linkage do not crossed by connecting rod, therefore, this leakage tests handle automatically restores to initial position under the elastic force of resilient, conductive member.
In above-mentioned any embodiment of the present invention, preferably, the main part of leakage tests handle has groove, and one end of connecting rod is connected in this groove, and can slide in this groove, and groove has Part I and Part II; When leakage tests handle is in passive leakage tests position, one end of connecting rod is arranged in this Part I, and the dead-centre position line of the linkage be made up of leakage tests handle, connecting rod and slide block do not crossed by connecting rod; When leakage tests handle has the initiative leak current fault display position, one end of connecting rod is arranged in this Part II, and the dead-centre position line of institute's linkage crossed by connecting rod.Due to after generation initiatively electric leakage, the dead-centre position line of linkage crossed by connecting rod, and therefore, after leakage tests handle is discharged by operator, leakage tests handle cannot return to initial position, but remains 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 earth leakage protective device described in above-mentioned any embodiment.
Will be appreciated that, foregoing description is only used to exemplary object, instead of will limit the scope of the invention.
Accompanying drawing explanation
Above-mentioned and the further feature of exemplary embodiment of the present invention and advantage will become more obvious from detailed description with the accompanying drawing below, and this description and accompanying drawing are only for exemplary purpose instead of limit the scope of the invention by any way, wherein:
Figure 1A-1C is the schematic diagram of the operation principle of the earth leakage protective device illustrated according to a preferred embodiment of the invention, wherein Figure 1A illustrates that this earth leakage protective device is in initial condition and the circuit breaker comprising this earth leakage protective device is in the situation of initial closed state, when Figure 1B illustrates that operator carries out leakage tests, the leakage tests handle of earth leakage protective device pulled out leakage tests position left and keep leakage tests handle in this leakage tests position and the main circuit free-handle of circuit breaker is in the situation of trip status, the free-handle that when Fig. 1 C illustrates in circuit and occurs electric leakage, the leakage tests handle of earth leakage protective device moves to leak current fault display position and circuit breaker is left in situation during trip positions.
Fig. 2 is the perspective diagram of the circuit breaker that the earth leakage protective device comprised according to a preferred embodiment of the invention is shown, wherein dotted line frame institute enclosure is divided into the primary structure of earth leakage protective device, and earth leakage protective device and circuit breaker are all in initial condition.
Fig. 3 A-3D is the perspective diagram of the earth leakage protective device illustrated according to a preferred embodiment of the invention, it is the enlarged drawing of the dotted box portion of Fig. 2, but the position residing for all parts is different, wherein Fig. 3 A illustrates that this earth leakage protective device is in initial condition and the circuit breaker comprising this earth leakage protective device is in the situation of initial closed state, when Fig. 3 B illustrates that operator carries out leakage tests, the leakage tests handle of earth leakage protective device pulled out leakage tests position left and keep 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 illustrate operator unclamp hand after leakage tests handle automatically restore to initial position and the free-handle of circuit breaker is in the situation of trip status, when Fig. 3 D illustrates in circuit and occurs leak current fault, leakage tests handle moves to the situation that initiatively leak current fault display position and free-handle move to trip positions left left.
Embodiment
Each exemplary embodiment of the present invention is described below with reference to accompanying drawings.
Aforementioned and other technology contents, feature and effect for the present invention, at following cooperation reference accompanying drawing in the detailed description of embodiment, can clearly present.The direction term mentioned above and in following description such as: upper and lower, left and right, front or rear etc., is only the direction with reference to accompanying drawing.Therefore, the direction term of use is used to illustrate and is not used for limiting the present invention.In addition, in whole embodiment, identical drawing reference numeral represents identical element.
First, it should be noted that, is a kind of particularly preferred embodiment shown in the accompanying drawing 1A-3D of invention, wherein earth leakage protective device has passive leakage tests function concurrently (as previously mentioned simultaneously, for convenience, electric leakage in leakage tests is called " passive electric leakage ") and initiatively leak current fault Presentation Function is (as previously mentioned, for convenience, the electric leakage occurred in circuit is called in this description " initiatively electric leakage "), and show the preferred structure of all parts, but, those skilled in the art are to be understood that, above-described embodiment is only exemplary preferred implementation, some technical characteristic in embodiment may not be required for the specific technical problem of solution, thus these technical characteristics not or can be omitted and the solution of non-influence technique problem or the formation of technical scheme.Specifically, such as, earth leakage protective device of the present invention only can have passive leakage tests function and not have initiatively leak current fault Presentation Function, that is, such as, can not have driver part 5 shown in the drawings.
Figure 1A-1C is the schematic diagram of the operation principle of the earth leakage protective device illustrated according to a preferred embodiment of the invention, wherein Figure 1A illustrates that this earth leakage protective device is in initial condition and the circuit breaker comprising this earth leakage protective device is in the situation of initial closed state, when Figure 1B illustrates that operator carries out leakage tests, the leakage tests handle of earth leakage protective device pulled out leakage tests position left and keep leakage tests handle in this leakage tests position and the main circuit free-handle of circuit breaker is in the situation of trip status, when Fig. 1 C illustrates in circuit and occurs leak current fault the leakage tests handle of earth leakage protective device move to leak current fault display position left and the free-handle of circuit breaker is in trip positions time situation.Fig. 2 is the perspective diagram of the circuit breaker that the earth leakage protective device comprised according to a preferred embodiment of the invention is shown, wherein dotted line frame institute enclosure is divided into the primary structure of earth leakage protective device, and earth leakage protective device and circuit breaker are all in initial condition.Fig. 3 A-3D is the perspective diagram of the earth leakage protective device illustrated according to a preferred embodiment of the invention, it is the enlarged drawing of the dotted box portion of Fig. 2, but the position residing for all parts is different, wherein Fig. 3 A illustrates that this earth leakage protective device is in initial condition and the circuit breaker comprising this earth leakage protective device is in the situation of initial closed state, the schematic diagram of its corresponding Figure 1A, when Fig. 3 B illustrates that operator carries out leakage tests, the leakage tests handle of earth leakage protective device pulled out leakage tests position left and keep 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 illustrate operator unclamp hand after leakage tests handle automatically restore to initial position and the free-handle of circuit breaker is in the situation of trip status, when Fig. 3 D illustrates in circuit and occurs leak current fault, leakage tests handle moves to the situation that initiatively leak current fault display position and free-handle move to trip positions left 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: leakage tests handle 2, and this leakage tests handle 2 comprises the dead man part 21 can being stirred to carry out the creepage protection function test of circuit breaker by operator and the main part 22 be connected with this dead man part; Connecting rod 3, one end 31 of this connecting rod is connected with the main part 22 of leakage tests handle; Slide block 4, this slide block is connected with the other end 32 of connecting rod; Resilient, conductive member 6, this resilient, conductive member 6 abuts against with slide block 4; Detection of electrical leakage module 8 (not shown in figure ia), this detection of electrical leakage module 8 and resilient, conductive member 6 electrical communication; And power taking parts 7, resilient, conductive member 6 can abut and connect this power taking parts 7 after pressurized, thus make the electric power of power taking parts be transported to detection of electrical leakage module via resilient, conductive member, to make detection of electrical leakage module obtain a leakage trigger signal, thus the main circuit free-handle 1 of instruction circuit breaker is threaded off.
As seen in figs. ia and 3; when normal operation of circuit breaker; leakage tests handle 2 and circuit breaker tripping handle 1 are all in initial position I; now; resilient, conductive member 6 and the power taking parts 7 of earth leakage protective device disconnect; and the free-handle 1 of circuit breaker is in the state connecting main circuit, not yet thread off.
With reference to Figure 1B, 3B and 3C, when carrying out passive leakage tests, operator stirs leakage tests handle 2 left with hand makes it move to the passive leakage tests position II shown in solid line from initial position I as denoted in figure 1 b by the dotted line.Because leakage tests handle 2 is to anticlockwise, it promotes slide block 4 slide downward by connecting rod 3, and resilient, conductive member 6 abuts and connects power taking parts 7 downwards under the promotion of slide block 4.Power taking parts 7 are in electriferous state in circuit, after it and resilient, conductive member 6 are connected, the electric power of power taking parts 7 is transported to the detection of electrical leakage module 8 (see Fig. 3 A) be electrically connected with this resilient, conductive member 6 via resilient, conductive member 6, therefore detection of electrical leakage module obtains a leakage trigger signal, thus the main circuit free-handle 1 of instruction circuit breaker is threaded off, that is, free-handle 1 arrives and remains on position II as shown in Figure 1B.Unidirectional arrow A in Figure 1B represents that free-handle 1 can remain on position II, i.e. the process of Fig. 3 B to Fig. 3 C from position I in-position II.Now, because staff not yet discharges leakage tests handle 2, therefore leakage tests handle 2 temporarily remains on position II, as shown in Figure 3 B.But after operator unclamps test handle 2, slide block 4 meeting upward sliding under the restoring force effect of resilient, conductive member 6, promotes connecting rod 3 and drives test handle 2 to automatically restore to initial position I, as shown in Figure 3 C simultaneously.Four-headed arrow B in Figure 1B represents that 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 completes.Wherein, the major reason that leakage tests handle 2 can automatically restore to initial position after staff unclamps is, by leakage tests handle 2, connecting rod 3 and slide block 4 constitute a linkage, the dead-centre position line of this linkage is by the line between the tie point of connecting rod and slide block and the rotary middle point O of leakage tests handle, as accompanying drawing 1B, dead-centre position line P in 1C and 3D shown in dotted line, due to when leakage tests handle 2 is placed in position II by staff, as shown in Figure 1B and 3B, the dead-centre position line P of linkage do not crossed by connecting rod 3, therefore, under the elastic restoring force of resilient, conductive member 6, leakage tests handle will return to initial position I.In above-mentioned test process; if after leakage tests handle 2 is placed in position II by operator; main circuit free-handle 1 is threaded off; namely from position I to position II; then show that the creepage protection function of circuit breaker is working properly, otherwise, if main circuit free-handle 1 is failure to actuate; then show that the creepage protection function of circuit breaker breaks down, should change in time or keep in repair circuit breaker.
In the accompanying drawings, resilient, conductive member 6 is depicted as a torsion spring, its have be set in crimping portion on a fixed axis and stretch out from crimping portion elongated leg so that abut power taking parts 7.It should be noted that, torsion spring is only a kind of preferred implementation of resilient, conductive member 6, the present invention is not limited to this, such as, resilient, conductive member 6 can also be stage clip, as long as this resilient, conductive member can be conducted electricity and elasticity can be provided 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, and thus, the pressing button using rotary handle as leakage tests handle from traditional is completely different, brings brand-new operating experience by user.
Notice, in passive leakage tests process, illustrated in the accompanying drawings in order to drive the driver part 5 (it will be described below) of slide block 4 not work, in other words, in aforementioned embodiments of the present invention, this driver part can not be needed.
In a preferred embodiment of the invention; whether can also thread off that relief user knows at main circuit free-handle 1 to make circuit breaker is because electric leakage result in this dropout; namely make circuit breaker have passive leakage tests function and active leak current fault Presentation Function simultaneously; preferably; on the basis of above-mentioned parts; when earth leakage protective device comprises driver part 5 further there is leak current fault in circuit, this driver part drives slide block to press down resilient, conductive member, abuts to power taking parts and connect with power taking parts to make resilient, conductive member.
As shown in Figure 1A-1C, 3A-3D, in order to coordinate this active leak current fault Presentation Function, preferably, the main part 22 of leakage tests handle 2 has groove 221, and one 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, the Part II being namely positioned at the Part I above the line P of dead-centre position and being positioned at below the line P of dead-centre position.
With reference to Fig. 1 C and 3D, when detection of electrical leakage module 8, it is shown in the drawings is a circuit board, when leakage current being detected, it sends a drive singal to driver part 5, after driver part 5 receives drive singal, its push rod 51 is driven to release fast downwards, thus promotion slide block 4 slide downward presses down resilient, conductive member 6, drivening rod 3 slides in the groove 221 of test handle 2 simultaneously, drive test handle 2 to anticlockwise when arriving certain position, slide block 4 slides down to dead-centre position line P under inertial force, now one end 31 of connecting rod 3 is subject to Part II applied pressure on the power along connecting rod direction of slide block 4 applying and the groove 221 of test handle 2 simultaneously, one end 31 of connecting rod 3 of making a concerted effort to impel of two power continues to move downward, and then make connecting rod 3 cross the dead-centre position line P of linkage, simultaneously resilient, conductive member 6 pressurized backward under touch power taking parts 7, the free-handle 1 of circuit breaker is triggered to anticlockwise open circuit after connecting circuit.Then; push rod 51 fast retractile of driver part 5; slide block 4 is attempted to move upward in the elastic restoring force effect of resilient, conductive member 6; because dead-centre position line P crossed by connecting rod 3; therefore leakage tests handle 2 can not turn back to initial position as in aforesaid passive earth leakage protective test under connecting rod 3 acts on, but remains on the active leak current fault display position III as shown in Fig. 1 C and 3D.Notice, initiatively leak current fault display position III is actual is same position with passive leakage tests position II, but, when there is initiatively leak current fault dropout, 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 is only remain on passive leakage tests position provisionally, initial position can be automatically returned to after staff unclamps.When user is when making an inspection tour circuit breaker, if find that leak current fault free-handle 2 remains on initiatively leak current fault display position III, then knowing in circuit and having occurred electric leakage.
After fixing a breakdown, when needing the use recovering circuit breaker, promote circuit breaker tripping handle 1 and leakage tests handle 2 to the right with hand.Correspondingly, drivening rod 3 moves by leakage tests handle 2, and then whole mechanism will return to the initial condition as shown in Figure 1A or 3A.
It should be noted that, in above-mentioned difunctional (i.e. passive leakage tests function and initiatively leak current fault Presentation Function) of the present invention execution mode, the enforcement of passive leakage tests function is identical with the enforcement of the passive leakage tests function in aforesaid single Function implementation example (namely only having passive leakage tests function and do not have initiatively leak current fault Presentation Function), therefore, for all parts that passive leakage tests relates to, difunctional embodiment and single Function implementation example can be completely the same, therefore, do not repeat them here difunctional embodiment and how to carry out leak current fault dropout test.
Although with reference on the basis of each embodiment, the present invention has been described in the description and has been illustrated in the accompanying drawings, but it will be appreciated by those skilled in the art that, above-described embodiment is only preferred embodiment, some technical characteristic in embodiment may not be required for the specific technical problem of solution, thus not or can omit these technical characteristics and the solution of non-influence technique problem or the formation of technical scheme; And the feature of an embodiment, key element and/or function suitably mutually can combine, combine or coordinate with the feature of other one or more embodiment, key element and/or function, unless this combination, combination or coordinate obviously can not be implemented.
Claims (10)
1. for an earth leakage protective device for circuit breaker, it is characterized in that, this earth leakage protective device comprises:
Leakage tests handle, this leakage tests handle comprises the dead man part can being stirred to carry out the creepage protection function test of circuit breaker by operator and the main part be connected with this dead man part;
Connecting rod, one end of this connecting rod is connected with the described main part of described leakage tests handle;
Slide block, this slide block is connected with the other end of described connecting rod;
Resilient, conductive member, this resilient, conductive member and described slide block abut against;
Detection of electrical leakage module, this detection of electrical leakage module and described resilient, conductive member electrical communication; And
Power taking parts, described resilient, conductive member can abut and connect this power taking parts after pressurized, thus make the electric power of described power taking parts be transported to described detection of electrical leakage module via described resilient, conductive member, to make described detection of electrical leakage module obtain a leakage trigger signal, thus instruction circuit breaker tripping.
2. earth leakage protective device as claimed in claim 1; it is characterized in that; when this earth leakage protective device also comprises driver part there is leak current fault in circuit, this driver part drives described slide block to press down described resilient, conductive member, abuts to described power taking parts and connect with described power taking parts to make described resilient, conductive member.
3. earth leakage protective device as claimed in claim 1 or 2, it 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, it is characterized in that, described leakage tests handle is rotary handle.
5. earth leakage protective device as claimed in claim 1 or 2, it is characterized in that, the described main part of described leakage tests handle has groove, and one 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, it is characterized in that, described leakage tests handle has initial position and passive leakage tests position; When normal operation of circuit breaker, described leakage tests handle is in this initial position, and described resilient, conductive member and described power taking parts disconnect; When this leakage tests handle is pulled out this passive leakage tests position to carry out leakage tests by operator, described resilient, conductive member and described power taking parts connect to cause circuit breaker tripping, and after this leakage tests handle is discharged by operator, this leakage tests handle automatically restores 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; When normal operation of circuit breaker, described leakage tests handle is in this initial position, and described resilient, conductive member and described power taking parts disconnect; When this leakage tests handle is pulled out this passive leakage tests position to carry out leakage tests by operator, described resilient, conductive member and described power taking parts connect to cause circuit breaker tripping, and after this leakage tests handle is discharged by operator, this leakage tests handle automatically restores to described initial position under the elastic force of described resilient, conductive member; When there is leak current fault in circuit, described driver part drives described slide block to press down described resilient, conductive member, to make 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 move to described active leak current fault display position from described initial position and remain on this active leak current fault display position there is leak current fault display circuit.
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 slide in this groove; described groove has Part I and Part II; when described leakage tests handle is in described passive leakage tests position; described one end of described connecting rod is arranged in this Part I, and the dead-centre position line of the linkage be made up of described leakage tests handle, described connecting rod and described slide block do not crossed by described connecting rod.
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, and one end of described connecting rod is connected in this groove, and can slide in this groove, described groove has Part I and Part II; When described leakage tests handle is in described passive leakage tests position, described one end of described connecting rod is arranged in this Part I, and the dead-centre position line of the linkage be made up of described leakage tests handle, described connecting rod and described slide block do not crossed by described connecting rod; When described leakage tests handle is in described active leak current fault display position, described one end of described connecting rod is arranged in this Part II, and the described dead-centre position line of described linkage crossed by described connecting rod.
10. a circuit breaker, is characterized in that, this circuit breaker comprises the earth leakage protective device as described in 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 |
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| Publication Number | Publication Date |
|---|---|
| CN103065899A CN103065899A (en) | 2013-04-24 |
| CN103065899B true CN103065899B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110322381.1A Active CN103065899B (en) | 2011-10-21 | 2011-10-21 | Earth leakage protective device and circuit breaker |
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| HK (1) | HK1180102A1 (en) |
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| 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 |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102194619A (en) * | 2010-03-16 | 2011-09-21 | 施耐德电器工业公司 | Test device for circuit breaker and circuit breaker with test device |
| CN202307752U (en) * | 2011-10-21 | 2012-07-04 | 施耐德电器工业公司 | Electricity leakage protection device and circuit breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6864769B2 (en) * | 2001-03-19 | 2005-03-08 | Leviton Manufacturing Co., Inc. | Lockout mechanism for residual current devices |
-
2011
- 2011-10-21 CN CN201110322381.1A patent/CN103065899B/en active Active
-
2013
- 2013-06-24 HK HK13107301.4A patent/HK1180102A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102194619A (en) * | 2010-03-16 | 2011-09-21 | 施耐德电器工业公司 | Test device for circuit breaker and circuit breaker with test device |
| CN202307752U (en) * | 2011-10-21 | 2012-07-04 | 施耐德电器工业公司 | Electricity leakage protection device and circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103065899A (en) | 2013-04-24 |
| HK1180102A1 (en) | 2013-10-11 |
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