CN103456577A - Thermal magnetic release and circuit breaker - Google Patents
Thermal magnetic release and circuit breaker Download PDFInfo
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- CN103456577A CN103456577A CN2012101755847A CN201210175584A CN103456577A CN 103456577 A CN103456577 A CN 103456577A CN 2012101755847 A CN2012101755847 A CN 2012101755847A CN 201210175584 A CN201210175584 A CN 201210175584A CN 103456577 A CN103456577 A CN 103456577A
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- actuation component
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Abstract
The invention provides a thermal magnetic release with a fault type indicating function. The thermal magnetic release comprises an actuating unit, a trip driving component, a trip, a short-circuit indicating release driving component, a short-circuit indicating release component and a bimetallic strip. The actuating unit comprises an actuating component, and the actuating component stops when a main circuit of a circuit breaker is in normal running or in overload and acts when the main circuit of the circuit breaker is in short circuit. The trip driving component can be actuated by the actuating component and is fastened with the trip. The short-circuit indicating release driving component can be actuated by the actuating component and is fastened with the short-circuit indicating release component. The bimetallic strip deforms under heating to deflect to press the trip driving component to move. The thermal magnetic release can indicate that the circuit breaker is off due to overload or short circuit when in fault. The invention further provides the circuit breaker comprising the thermal magnetic release.
Description
Technical field
The present invention relates to release, more specifically, relate to the Pyromagnetic release for circuit breaker.The invention still further relates to circuit breaker, more specifically, relate to the circuit breaker with Pyromagnetic release.
Background technology
Thereby being the maintaining body that discharges circuit breaker, release makes a kind of common apparatus of circuit breaker automatic disconnection, usually can be divided into magnetic release, electronic trip unit and Pyromagnetic release, and Pyromagnetic release wherein is because the advantages such as cost is low, stable performance, long service life have a very wide range of applications.
Yet, existing Pyromagnetic release does not have the fault type deixis in the market, , after Pyromagnetic release makes circuit breaker tripping, the user only knows and fault occurred, yet, that which kind of fault has caused dropout but can't directly know on earth, for example, after circuit breaker tripping, the user can't directly judge and occurred that overload (, circuit breaker has stood to surpass the overload current of rated current) caused dropout, short circuit has still appearred (, circuit breaker has stood the short circuit current larger than overload current) caused dropout, this causes certain difficulty for maintainer's fast finding line fault.
Therefore, there is a kind of demand, a kind of Pyromagnetic release with fault indication function is provided, more specifically, provide a kind of Pyromagnetic release with overload and short trouble deixis.Correspondingly, also there is a kind of demand, the circuit breaker of the Pyromagnetic release with aforementioned function is provided.
Summary of the invention
According to above-mentioned shortcoming and defect, the objective of the invention is at least to solve the above-mentioned problems in the prior art.
According to a preferred embodiment of the invention, a kind of Pyromagnetic release for circuit breaker is provided, this Pyromagnetic release comprises: actuating unit, this actuating unit comprises actuated components, and be set to so that the normal operation of the main circuit of circuit breaker or when overload occurs actuated components be failure to actuate and the actuated components action while short circuit occurring of the main circuit of circuit breaker; The tripping actuation component, this tripping actuation component have can Passively activated component actuation part so that the motion by actuated components moves; Tripping, the part of this tripping and tripping actuation component is interlockingly connected; Short circuit indication dropout actuation component, this short circuit indication dropout actuation component has the part that can activated component actuation so that the motion by actuated components moves; Short circuit indication release member, the part of this short circuit indication release member and short circuit indication dropout actuation component is interlockingly connected; And bimetal leaf, this bimetal leaf is set to so that the temperature distortion deflection of this bimetal leaf can press the tripping actuation component so that the tripping actuation component moves.Thus, can provide a kind of Pyromagnetic release with overload and short trouble deixis.
In above preferred embodiment of the present invention, preferably, actuating unit also comprises the electromagnet unit be comprised of moving armature and static gag bit, moving armature carries and is fixed on actuated components, thereby so that the normal operation of the main circuit of circuit breaker or when overload occurs the moving armature actuated components of being failure to actuate be failure to actuate, thereby and the main circuit of circuit breaker moving armature action actuated components action while short circuit occurring.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, actuating unit also comprises the current-carrying board component, and actuated components is connected in the first of current-carrying board component, static gag bit is fixed on the second portion of this current-carrying board component, so that static gag bit and moving armature are toward each other.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, bimetal leaf is fixed on the current-carrying board component.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, actuated components is connected in the first of current-carrying board component pivotly.Thus, the motion of actuated components can be designed as pivoting action, thereby at least can be conducive to the Miniaturization Design of whole release and the reliability that guarantees mechanism action.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, the tripping actuation component has pivotable body and is connected to the first arm and second arm of this body, wherein the first arm can activated parts and presses, the second arm and tripping actuation component are interlockingly connected, this the first arm pivotable so that the pivotable of actuated components can press the first arm, and then drive the second arm pivotable by body, and then make tripping and tripping actuation component thread off.Thus, the motion of tripping actuation component can be designed as pivoting action, thereby at least can be conducive to the Miniaturization Design of whole release and the reliability that guarantees mechanism action.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, short circuit indication dropout actuation component has pivotable main body and is connected to the first bar and second bar of this main body, wherein the first bar can activated parts and presses, the second bar and short circuit indication dropout actuation component are interlockingly connected, this the first bar pivotable so that the pivotable of actuated components can press the first bar, and then drive the second bar pivotable by main body, and then make short circuit indication release member and short circuit indication dropout actuation component thread off.Thus, the motion of short circuit indication dropout actuation component can be designed as pivoting action, thereby at least can be conducive to the Miniaturization Design of whole release and the reliability that guarantees mechanism action.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, the temperature distortion deflection of bimetal leaf can press the tripping actuation component so that the pivoted motion of tripping actuation component, and then make tripping and tripping actuation component thread off.Thus, actuated components and bimetal leaf all may be actuated the tripping actuation component, and in other words, bimetal leaf can be used as the another set of mechanism of actuating the tripping actuation component.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, the current-carrying board component is communicated with the main circuit of circuit breaker.Thus, the electric current in the main circuit of the reality of the electric current in the current-carrying board component and circuit breaker is same electric current.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, electromagnet unit is set to energize by the current-carrying board component, and be set to when the normal operation of the main circuit of circuit breaker or when overload occurs, this electromagnet unit also is failure to actuate, and when the main circuit of circuit breaker is short-circuited, the electromagnet unit action, so that moving armature moves towards static gag bit, so that actuated components move to press tripping actuation component and short circuit indication dropout actuation component the two, so that tripping and tripping actuation component are threaded off and described short circuit indication release member and the dropout of described short circuit indication dropout actuation component.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, bimetal leaf is set to be heated by the current-carrying board component, and be set to when the main circuit of circuit breaker normally moves, the temperature distortion deflection of this bimetal leaf is not enough to press the tripping actuation component so that the tripping actuation component moves, and, when overload occurs the main circuit of circuit breaker, the temperature distortion deflection of this bimetal leaf presses the tripping actuation component so that tripping and tripping actuation component are threaded off.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, short circuit indication release member has a backstopping assembly, so that after short circuit indication release member and the two dropout of tripping, this backstopping assembly backstop tripping actuation component reset so that make tripping can't with this tripping actuation component snapping so that must first reset short circuit indication release member before the tripping that resets.Thus, another means that provide the user to identify short trouble, and make the user can unexpectedly not ignore to occur short circuit in the circuit that this may bring the fault such as the serious consequence of fire.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, backstopping assembly is a plate with holes, so that after the dropout of short circuit indication release member, thereby the reseting movement of the 3rd arm that is connected to body of the entity part backstop tripping actuation component that there is no hole of this backstopping assembly makes the tripping actuation component not reset, so make tripping can't with this tripping actuation component snapping; And, after short circuit indication release member resets, the bore portion of backstopping assembly is aimed at the 3rd arm of tripping actuation component, thereby backstop tripping actuation component does not reset.Thus, can realize the backstop function of backstopping assembly simple in structurely.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, Pyromagnetic release has a housing, and this housing has first window and Second Window, and the part of tripping is visible by first window, and the part of short circuit indication release member is visible by Second Window.Thus, can be conducive to (dropouts) that the user observed and/or identified tripping and short circuit indication release member in release easily moves.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, there is mark on the part of tripping so that the motion of this mark can be by first window as seen to indicate this tripping whether to thread off.Thus, can more contribute to quick (dropout) action of observing and/or identify tripping in release of user.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, there is mark on the part of short circuit indication release member so that the motion of this mark can be by Second Window as seen to indicate this short circuit indication release member whether to thread off.Thus, can more contribute to the user to observe fast and/or identify short circuit in release and indicate (dropout) of release member to move.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, if learn this tripping and all dropouts of this short circuit indication release member by observation, show normal operation circuit, if learn that this tripping is threaded off and this short circuit indication release member is not threaded off by observation, show circuit overloads, if learn that by observation this tripping and this short circuit indication release member all thread off, show short circuit.Thus, the combination judgement of the action of by action and this short circuit of tripping, indicating release member, can identify fault type fast.
In above-mentioned arbitrary preferred embodiment of the present invention, preferably, short circuit indication release member has the nose bar that is positioned at the Second Window below, and this nose bar can be outstanding to indicate this short circuit indication release member to thread off from Second Window when short circuit indication release member is threaded off.Thus, provide another way to identify the action of this short circuit indication release member.
According to a preferred embodiment of the invention, also provide a kind of circuit breaker, this circuit breaker comprises: as the Pyromagnetic release described in above-mentioned arbitrary preferred embodiment of the present invention; And breaker body, wherein, the release member of this breaker body is associated with the tripping of Pyromagnetic release, so that the release member of this breaker body is actuated in the dropout of the tripping of Pyromagnetic release action, and then the main circuit of cut-off breaker.
Will be appreciated that, foregoing description is only for exemplary purpose, rather than will limit the scope of the invention.
The accompanying drawing explanation
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 are only for exemplary purpose rather than limit the scope of the invention by any way, wherein:
Fig. 1 is the schematic side elevation that the internal structure of Pyromagnetic release when overload and short trouble not occurring according to a first advantageous embodiment of the invention is shown, and wherein tripping and short circuit indication release member are not all threaded off;
Fig. 2 is the schematic side elevation that the internal structure of Pyromagnetic release when short trouble occurring as shown in Figure 1 is shown, and wherein tripping and short circuit indication release member are all threaded off;
Fig. 3 is the schematic side elevation that the internal structure of Pyromagnetic release when overload fault occurring as shown in Figure 1 is shown, and wherein tripping dropout and short circuit indication release member is not threaded off;
Fig. 4 is the perspective schematic view that the internal structure of Pyromagnetic release as shown in Figure 1 is shown;
Fig. 5 is another perspective schematic view that the internal structure of Pyromagnetic release as shown in Figure 1 is shown;
Fig. 6 is the schematic plan that the exterior panel structure of Pyromagnetic release as shown in Figure 1 is shown;
Fig. 7 is the schematic side elevation that the internal structure of Pyromagnetic release according to a second, preferred embodiment of the present invention when overload and short trouble not occurring is shown, and wherein tripping and short circuit indication release member are not all threaded off;
Fig. 8 is the schematic side elevation that the internal structure of Pyromagnetic release when short trouble occurring as shown in Figure 7 is shown, and wherein tripping and short circuit indication release member are all threaded off;
Fig. 9 is the schematic side elevation that the internal structure of Pyromagnetic release when overload fault occurring as shown in Figure 7 is shown, and wherein tripping dropout and short circuit indication release member is not threaded off;
Figure 10 is the perspective schematic view that the exterior panel structure of Pyromagnetic release as shown in Figure 7 is shown; And
Figure 11 is the partial schematic perspective view that the internal structure of Pyromagnetic release as shown in Figure 7 is shown.
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, in following cooperation, with reference to accompanying drawing, in the detailed description to embodiment, can clearly present.The direction term of mentioning in following examples, 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 not to be used for limiting the present invention for illustrating, in addition, in whole embodiment, identical drawing reference numeral means identical element.
At first it should be noted that, above and the term of hereinafter mentioning " overload ", " overload current " or " overload fault " indication circuit the situation of overload appears, for example, the situation of the 140%-300% that electric current is rated current; Term " short circuit ", " short circuit current " or " short trouble " mean to occur that the situation of short circuit appears in circuit, and for example, electric current is greater than 300% situation of rated current.In other words, although from certain Special Significance, short circuit can be considered as a kind of very special overload situations,, in this article, the two is different fault type, has different implications, and the two included current range is not overlapping, overload current is for surpassing the relatively less electric current of rated current, short circuit current is for surpassing the electric current that rated current is relatively many, that is, short circuit current is not yet not to be called or to regard as overload current.
Referring now to Fig. 1-6, Pyromagnetic release is according to a first advantageous embodiment of the invention described.
At first with reference to Fig. 1, it is the schematic side elevation that the internal structure of Pyromagnetic release when overload and short trouble not occurring according to a first advantageous embodiment of the invention is shown, wherein tripping and short circuit indication release member are not all threaded off, in the figure, the housing that holds the Pyromagnetic release internal structure is also not shown, in order to the internal structure of Pyromagnetic release is shown better.
According to a first advantageous embodiment of the invention for circuit breaker, low-voltage circuit breaker normally, Pyromagnetic release comprise: current-carrying board component 10; Actuated components 20, this actuated components 20 is connected in the first of current-carrying board component 10; Moving armature 30, this moving armature 30 is fixed on actuated components 20; Static gag bit 40, this static gag bit 40 is fixed on the second portion of this current-carrying board component 10, so that static gag bit 40 is relative to moving armature 30 jointly to form an electromagnet unit, this electromagnet unit is set to so that the normal operation of the main circuit of circuit breaker or be failure to actuate when overload occurs and the main circuit of circuit breaker moves while short circuit occurring; Tripping actuation component 50, this tripping actuation component 50 has can activated part that parts 20 press so that move by pressing of actuated components 20; Tripping 60, this tripping 60 is interlockingly connected with the part of tripping actuation component 50; Short circuit indication dropout actuation component 70, this short circuit indication dropout actuation component 70 has can activated part that parts 20 press so that move by pressing of actuated components 20; Short circuit indication release member 80, this short circuit indication release member 80 is interlockingly connected with the part of short circuit indication dropout actuation component 70; Bimetal leaf 90, this bimetal leaf 90 is fixed on current-carrying board component 10, and has certain-length so that the temperature distortion deflection of this bimetal leaf 90 can press tripping actuation component 50 so that tripping actuation component 50 moves.
Although in accompanying drawing 1, actuated components 20, tripping actuation component 50 and short circuit indication dropout actuation component 70 are depicted as pivotable parts (can be described in further detail hereinafter), but, obviously, the present invention is not limited to the situation shown in accompanying drawing, be that one or more in actuated components 20, tripping actuation component 50 and short circuit indication dropout actuation component 70 can be the parts of other forms of motion, for example can translation or translation add the parts of rotation.That is to say, total inventive concept of the present invention is, when overload occurring (as shown in Figure 3), bimetal leaf moves, thereby make the motion of tripping actuation component, and then actuate tripping, now short circuit indication dropout actuation component and short circuit indication release member are not moved; And when short circuit occurring (as shown in Figure 2), actuated components moves, thereby make the tripping actuation component move that (it makes the tripping actuation component move early than bimetal leaf usually, because the magnetic response of electromagnet unit is faster than the thermal response of bimetal leaf) and make short circuit indication dropout actuation component move, and then actuate respectively tripping and short circuit indication release member, thus, can indicate the combination of the action of release member to come in decision circuitry to have occurred overload fault or short trouble by actuating tripping and short circuit.Can find out, as long as can realize the relevant motion of above-mentioned interlinked mechanism/actuate, can finally realize the identification of fault type, and be not limited to the concrete type of sports of interlinked mechanism, for example, as long as the motion of actuated components can make short circuit indication dropout actuation component and the motion of short circuit indication release member, for example it can be regardless of the forms of motion of actuated components how moving armature towards static gag bit slip/translation, and.
Now, simultaneously with reference to Fig. 1-5, wherein, Fig. 2 is the schematic side elevation that the internal structure of Pyromagnetic release when short trouble occurring as shown in Figure 1 is shown, and wherein tripping and short circuit indication release member are all threaded off; Fig. 3 is the schematic side elevation that the internal structure of Pyromagnetic release when overload fault occurring as shown in Figure 1 is shown, and wherein tripping dropout and short circuit indication release member is not threaded off; Fig. 4 is the perspective schematic view that the internal structure of Pyromagnetic release as shown in Figure 1 is shown; And Fig. 5 is another perspective schematic view that the internal structure of Pyromagnetic release as shown in Figure 1 is shown.
Design for actuated components and associated components thereof, in a preferred embodiment of the invention, actuated components 20 is connected in the first of current-carrying board component 10 pivotly, moving armature 30 is attached on actuated components 20, static gag bit 40 is connected on the second portion of current-carrying board component 10, and moving armature 30 forms an electromagnet unit relative to one another with static gag bit 40, and current-carrying board component 10 is communicated with the main circuit of circuit breaker, thus, electromagnet unit can be energized by current-carrying board component 10.Can find out, in a preferred embodiment of the invention, the current-carrying board component plays the effect of for electromagnet unit, energizing and supporting simultaneously, thereby is conducive to designs simplification.Certainly, electromagnet unit also can be energized by alternate manner, as long as the electric current of energizing to electromagnet unit with the electric current of circuit breaker main circuit, be associated (such as but not limited to, there is the certain proportion relation between energized current and main circuit current) so that the electric current (for example overload current and short circuit current) of the action of electromagnet unit and main circuit being associated gets final product.
Further, as Figure 1-3, thereby actuated components 20 extends upward the top of making actuated components 20 higher than tripping actuation component 50 and short circuit indication dropout actuation component 70 bottom, thus make the pivoting action of actuated components 20 can actuate tripping actuation component 50 and short circuit indication dropout actuation component 70 the two.Pivoting action can be realized actuating of corresponding component in less space, thereby is conducive to the miniaturization of whole Pyromagnetic release.Moreover pivoting action is actuated also is conducive to improve job stability and useful life.
Design for tripping actuation component and associated components thereof, in a preferred embodiment of the invention, with reference to Fig. 2 and 3, tripping actuation component 50 has pivotable body 503 and is connected to the first arm 501 that is in certain angle and second arm 502 of this body 503, these the first arm 501 pivotables so that the pivotable of actuated components 20 can press the first arm 501, and then drive the second arm 502 pivotables by body 503, and then make tripping 60 and tripping actuation component 50 thread off.The structural design of the pivoting action of tripping actuation component as previously mentioned, has such as making the advantages such as Pyromagnetic release miniaturization, simple in structure, reliable operation and long service life.
Design for short circuit indication dropout actuation component and associated components thereof, in a preferred embodiment of the invention, with reference to Fig. 2 and 3, short circuit indication dropout actuation component 70 has pivotable main body 703 and is connected to the first bar 701 that is in certain angle and second bar 702 of this main body 703, this the first bar pivotable so that the pivotable of actuated components 20 can press the first bar 701, and then drive the second bar 702 pivotables by main body 703, and then make short circuit indication release member 80 and short circuit indication dropout actuation component 70 thread off.
Design for bimetal leaf and associated components thereof, in a preferred embodiment of the invention, with reference to Fig. 1-3, bimetal leaf 90 is connected on the current-carrying board component, when overload appears in circuit, it is by heating with its parts that attach mutually on the current-carrying board component, thereby deform deflection, and then press the part of tripping actuation component 50, the rod member for example extended from body 503, so that the pivoted motion of tripping actuation component 50, and then make tripping 60 and tripping actuation component 50 thread off.
Thus, the electric current that action electromagnet unit can be occurred to arranges a threshold value, and the corresponding minimum short circuit current of this threshold value, when electric current is less than this threshold value, while short trouble not occurring (when comprising the circuit normal operation and overload fault occurring), electromagnet unit is not moved; And, when electric current is greater than this threshold value, while short trouble occurring, electromagnet unit is moved.More particularly, electromagnet unit is set to energize by current-carrying board component 10, and be set to when the normal operation of the main circuit of circuit breaker or when overload occurs, this electromagnet unit also is failure to actuate, and when the main circuit of circuit breaker is short-circuited, the electromagnet unit action, so that moving armature 30 is towards static gag bit 40 motions, so that actuated components 20 rotate to press tripping actuation component 50 and short circuit indication dropout actuation component 70 the two, so that tripping 60 is threaded off with tripping actuation component 50 and short circuit indication release member 80 is threaded off with short circuit indication dropout actuation component 70.
On the other hand, 90 of bimetal leafs are set to be heated by current-carrying board component 10, and be set to when the main circuit of circuit breaker normally moves, the temperature distortion deflection of this bimetal leaf 90 is not enough to press tripping actuation component 50 so that tripping actuation component 50 moves, and, when overload occurs the main circuit of circuit breaker, the temperature distortion deflection of this bimetal leaf 90 presses tripping actuation component 50 so that tripping 60 is threaded off with tripping actuation component 50.
With reference to Figure 4 and 5, it shows the three-dimensional side view of the internal structure of Pyromagnetic release according to a first advantageous embodiment of the invention.
In Fig. 4, the pivotable main body 703 of short circuit indication dropout actuation component 70 is depicted as an elongated rod member, this elongated rod member is socketed on the axle through the sidewall of the housing of release, thereby this elongated rod member can pivotable, and then can drive the first bar 701 and second bar 702 of the elongated rod member form on it.The top of actuated components 20 higher than the first arm 501 of the first bar 701 of short circuit indication dropout actuation component 70 and protection actuation component bottom so that actuated components 20 can press the first bar 701 and the first arm 501 in the pivotable process.
In Fig. 5, can know and find out to there is ledge structure on the second arm 502 of tripping actuation component, the snapping of the part to downward-extension of the left end of this step and tripping 60.Can predict, the second arm 502 is rotated counterclockwise under the actuating of actuated components 20, and the second arm 502 will be threaded off with tripping 60.Thus, realized snapping and the tripping function of tripping actuation component and tripping, still, obviously, the present invention is not limited to specific execution mode shown in the drawings, as long as can realize the snapping of the two and thread off.
In Fig. 5, can also know and find out to there is the hook formation to downward-extension on the second bar 702 of short circuit indication dropout actuation component, the upwardly extending part snapping of the left end of this hook formation and short circuit indication release member 80.Can predict, the second arm 502 is rotated counterclockwise under the actuating of actuated components 20, and the second bar 702 will indicate release member 80 to thread off in short circuit.Thus, realized snapping and the tripping function of short circuit indication dropout actuation component and short circuit indication release member, still, obviously, the present invention is not limited to specific execution mode shown in the drawings, as long as can realize the snapping of the two and thread off.
Thus, realized that the inside linkage part of Pyromagnetic release has respectively different motions under overload and short-circuit conditions, and then can judge by the motion of tripping and short circuit indication release member the preferred structure design of overload fault or short trouble.
Motion how to observe and/or identify tripping and short circuit indication release member is below then described.
With reference to Fig. 6, it is the schematic plan that the exterior panel structure of Pyromagnetic release as shown in Figure 1 is shown.In Fig. 6, Pyromagnetic release has a housing, holds the above-mentioned internal part of Pyromagnetic release.This housing has first window 1001 and Second Window 1002, and the part of tripping 60 is visible by first window 1001, and the part of short circuit indication release member 80 is visible by Second Window 1002.If learn this tripping and all dropouts of this short circuit indication release member by observation, show normal operation circuit, if learn that this tripping is threaded off and this short circuit indication release member is not threaded off by observation, show circuit overloads, if learn that by observation this tripping and this short circuit indication release member all thread off, show short circuit.
Further, mark can be provided with on the part of tripping 60 so that observe, so that the motion of this mark can be by first window 1001 as seen to indicate this tripping 60 whether to thread off.Similarly, on the part of short circuit indication release member 80, also mark can be provided with so that observe, so that the motion of this mark can be by Second Window 1002 as seen to indicate this short circuit indication release member 80 whether to thread off.Above-mentioned mark can be for example pattern, colour code or other form.For example, in embodiment as shown in Figure 6, being labeled as in tripping 60 " TRIP " printed words, and be labeled as " S.C. " printed words on short circuit indication release member 80.During normal operation circuit, tripping and short circuit indication release member are not all threaded off, and can't see respectively " TRIP " and " S.C. " printed words in first window 1001 and Second Window 1002.When overload occurring, tripping is threaded off and is moved right (referring to Fig. 3), mark on it correspondingly can be seen by first window 1001, therefore " TRIP " printed words appear in first window 1001, now, and because short circuit indication release member is not threaded off, therefore can't see " S.C. " printed words at Second Window 1002, thus, " S.C. " printed words do not occur when " TRIP " printed words occurring, can in decision circuitry, overload fault occur.When short circuit occurring, tripping is threaded off and is moved right (referring to Fig. 2), mark on it correspondingly can be seen by first window 1001, therefore occur " TRIP " printed words in first window 1001, now, short circuit indication release member is also threaded off and moves right (referring to Fig. 2), therefore see " S.C. " printed words at Second Window 1002, thus, when simultaneously, occur " TRIP " printed words and " S.C. " printed words can in decision circuitry, short trouble having occurred.
Can find out, provide in a preferred embodiment of the invention a kind of mode of conveniently identification circuit fault, still, the present invention is not limited to the above-mentioned mode of being identified by the pattern printed words.
Referring now to Fig. 7-11, Pyromagnetic release according to a second, preferred embodiment of the present invention is described, wherein Fig. 7 is the schematic side elevation that the internal structure of Pyromagnetic release according to a second, preferred embodiment of the present invention when overload and short trouble not occurring is shown, and wherein tripping and short circuit indication release member are not all threaded off; Fig. 8 is the schematic side elevation that the internal structure of Pyromagnetic release when short trouble occurring as shown in Figure 7 is shown, and wherein tripping and short circuit indication release member are all threaded off; Fig. 9 is the schematic side elevation that the internal structure of Pyromagnetic release when overload fault occurring as shown in Figure 7 is shown, and wherein tripping dropout and short circuit indication release member is not threaded off; Figure 10 is the perspective schematic view that the exterior panel structure of Pyromagnetic release as shown in Figure 7 is shown; And Figure 11 is the partial schematic perspective view that the internal structure of Pyromagnetic release as shown in Figure 7 is shown.
The second preferred embodiment as shown in Fig. 7-11 is with the main difference part of the first preferred embodiment as shown in Fig. 1-6, in the second preferred embodiment, short circuit indication release member after dropout on upspring, what correspondingly, in the Second Window of housing, see is whether short circuit indicates the part of release member outstanding by this window; And, in the first preferred embodiment, short circuit indication release member moves right after dropout, correspondingly, what in the Second Window of housing, see is that short circuit indicates the part of release member whether to move right (whether seeing " S.C. " printed words).Difference also is, in the second preferred embodiment, be provided with backstopping assembly on short circuit indication release member, so that the motion of backstop tripping actuation component after dropout, the short circuit indication release member so that must first reset before the tripping that resets, and, in the first preferred embodiment, do not have backstopping assembly.
Describe with reference to the accompanying drawings above difference, and repeat no more with the same or similar part of the first embodiment so that succinct.
With reference to accompanying drawing, short circuit indication release member 80 has a backstopping assembly 801, so that after short circuit indication release member 8 and tripping 60 the two dropout, these backstopping assembly 801 backstop tripping actuation component 50 reset so that make tripping 60 can't with these tripping actuation component 50 snappings so that must first reset short circuit indication release member 80 before the tripping 60 that resets.Preferably, as clear illustrating in Figure 11, backstopping assembly 801 is a plate with holes, so that after 80 dropouts of short circuit indication release member, thereby the reseting movement of the 3rd arm 504 that is connected to body of the entity part backstop tripping actuation component 50 that there is no hole of this backstopping assembly 801 makes tripping actuation component 50 not reset, so make tripping 60 can't with these tripping actuation component 50 snappings; And, after short circuit indication release member 80 resets, the bore portion of backstopping assembly 801 is aimed at the 3rd arm 504 of tripping actuation component 50, thereby backstop tripping actuation component 50 does not reset.
With reference to Fig. 7-10, short circuit indication release member 80 has the nose bar 802 that is positioned at Second Window 1002 belows, and this nose bar 802 can be from Second Window 1002 outstanding (with reference to Figure 10) to indicate this short circuit indication release member to thread off when short circuit indication release member is threaded off.
Thus, different from the first embodiment, when short circuit, the nose bar 802 of short circuit indication release member 80 moves upward, outstanding from Second Window, and the user can judge and short-circuit conditions occurs thus.When overload, nose bar 802 does not move upward, and only tripping moves, and therefore in first window, correspondingly observes the motion of tripping.When resetting whole release, due to the backstop of backstopping assembly 801, must first press backstopping assembly, ability and then the tripping that resets.
In a preferred embodiment of the invention, also provide a kind of circuit breaker, particularly low-voltage circuit breaker, it comprises: according to the Pyromagnetic release of the first embodiment as above or the second embodiment; And breaker body, wherein, the release member of this breaker body is associated with the tripping of Pyromagnetic release, so that the release member of this breaker body is actuated in the dropout of the tripping of Pyromagnetic release action, and then the main circuit of cut-off breaker.
Although on the basis with reference to each embodiment, the present invention is described and is illustrated in the accompanying drawings in specification, but it will be appreciated by those skilled in the art that, above-described embodiment is only preferred embodiment, some technical characterictic in embodiment may not be essential for solving specific technical problem, thereby can there is no or omit these technical characterictics 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 can with the suitably combination mutually of feature, key element and/or the function of other one or more embodiment, in conjunction with or coordinates, unless this combination, combination or cooperation obviously can not be implemented.
Claims (22)
1. the Pyromagnetic release for circuit breaker, is characterized in that, this Pyromagnetic release comprises:
Actuating unit, this actuating unit comprises actuated components, and be set to so that the normal operation of the main circuit of circuit breaker or when overload occurs described actuated components be failure to actuate and the described actuated components action while short circuit occurring of the main circuit of circuit breaker;
The tripping actuation component, this tripping actuation component has the part that can be activated by described moving actuated components so that the motion by described actuated components moves;
Tripping, the part of this tripping and described tripping actuation component is interlockingly connected;
Short circuit indication dropout actuation component, this short circuit indication dropout actuation component has the part that can be activated by described actuated components so that the motion by described actuated components moves;
Short circuit indication release member, the part of this short circuit indication release member and described short circuit indication dropout actuation component is interlockingly connected; And
Bimetal leaf, this bimetal leaf is set to the described tripping actuation component so that the temperature distortion deflection of this bimetal leaf can press described tripping actuation component and moves.
2. Pyromagnetic release as claimed in claim 1, it is characterized in that, described actuating unit also comprises the electromagnet unit be comprised of moving armature and static gag bit, described moving armature carries and is fixed on described actuated components, thereby so that the normal operation of the main circuit of circuit breaker or when overload occurs the described moving armature described actuated components of being failure to actuate be failure to actuate, thereby and the main circuit of circuit breaker described actuated components action of described moving armature action while short circuit occurring.
3. Pyromagnetic release as claimed in claim 2, it is characterized in that, described actuating unit also comprises the current-carrying board component, described actuated components is connected in the first of described current-carrying board component, described static gag bit is fixed on the second portion of this current-carrying board component, so that described static gag bit and described moving armature are toward each other.
4. Pyromagnetic release as claimed in claim 3, is characterized in that, described bimetal leaf is fixed on described current-carrying board component.
5. Pyromagnetic release as claimed in claim 3, is characterized in that, described actuated components is connected in the first of described current-carrying board component pivotly.
6. Pyromagnetic release as described as one of claim 1-5, it is characterized in that, described tripping actuation component has pivotable body and is connected to the first arm and second arm of this body, wherein said the first arm can be pressed by described actuated components, described the second arm and described tripping actuation component are interlockingly connected, this the first arm pivotable so that the pivotable of described actuated components can press described the first arm, and then drive described the second arm pivotable by described body, and then make described tripping and described tripping actuation component thread off.
7. Pyromagnetic release as described as one of claim 1-5, it is characterized in that, described short circuit indication dropout actuation component has pivotable main body and is connected to the first bar and second bar of this main body, wherein said the first bar can be pressed by described actuated components, described the second bar and described short circuit indication dropout actuation component are interlockingly connected, this the first bar pivotable so that the motion of described actuated components can press described the first bar, and then drive described the second bar pivotable by described main body, and then make described short circuit indication release member and described short circuit indication dropout actuation component thread off.
8. Pyromagnetic release as claimed in claim 6, it is characterized in that, the temperature distortion deflection of described bimetal leaf can press described tripping actuation component so that the pivoted motion of described tripping actuation component, and then make described tripping and described tripping actuation component thread off.
9. Pyromagnetic release as described as one of claim 3-5, is characterized in that, described current-carrying board component is communicated with the main circuit of circuit breaker.
10. Pyromagnetic release as claimed in claim 9, it is characterized in that, described electromagnet unit is set to energize by described current-carrying board component, and be set to when the normal operation of the main circuit of circuit breaker or when overload occurs, this electromagnet unit also is failure to actuate, and when the main circuit of circuit breaker is short-circuited, described electromagnet unit action, so that described moving armature moves towards described static gag bit, so that described actuated components move to press described tripping actuation component and described short circuit indication dropout actuation component the two, so that described tripping and described tripping actuation component are threaded off and described short circuit indication release member and the dropout of described short circuit indication dropout actuation component.
11. Pyromagnetic release as claimed in claim 4, it is characterized in that, described bimetal leaf is set to be heated by described current-carrying board component, and be set to when the main circuit of circuit breaker normally moves, the temperature distortion deflection of this bimetal leaf is not enough to press described tripping actuation component so that described tripping actuation component moves, and, when overload occurs the main circuit of circuit breaker, the temperature distortion deflection of this bimetal leaf presses described tripping actuation component so that described tripping and described tripping actuation component are threaded off.
12. Pyromagnetic release as claimed in claim 7, it is characterized in that, described short circuit indication release member has a backstopping assembly, so that after described short circuit indication release member and the two dropout of described tripping, the described tripping actuation component of this backstopping assembly backstop reset so that make described tripping can't with this tripping actuation component snapping so that must first reset described short circuit indication release member before the tripping that resets.
13. Pyromagnetic release as claimed in claim 12, it is characterized in that, described backstopping assembly is a plate with holes, so that after the dropout of described short circuit indication release member, thereby the reseting movement of the 3rd arm that is connected to described body of the described tripping actuation component of entity part backstop that there is no hole of this backstopping assembly makes described tripping actuation component not reset, so make described tripping can't with this tripping actuation component snapping; And, after short circuit indication release member resets, the bore portion of described backstopping assembly is aimed at described the 3rd arm of described tripping actuation component, thereby the described tripping actuation component of backstop does not reset.
14. Pyromagnetic release as described as one of claim 1-5, it is characterized in that, described Pyromagnetic release has a housing, this housing has first window and Second Window, the part of described tripping is visible by described first window, and the part of described short circuit indication release member is visible by described Second Window.
15. Pyromagnetic release as claimed in claim 14, is characterized in that, has mark on the part of described tripping so that the motion of this mark can be by first window as seen to indicate this tripping whether to thread off.
16. Pyromagnetic release as claimed in claim 15, is characterized in that, has mark on the part of described short circuit indication release member so that the motion of this mark can be by Second Window as seen to indicate this short circuit indication release member whether to thread off.
17. Pyromagnetic release as claimed in claim 16, it is characterized in that, if learn this tripping and all dropouts of this short circuit indication release member by observation, show normal operation circuit, if learn that this tripping is threaded off and this short circuit indication release member is not threaded off by observation, show circuit overloads, if learn that by observation this tripping and this short circuit indication release member all thread off, show short circuit.
18. Pyromagnetic release as claimed in claim 13, it is characterized in that, described Pyromagnetic release has a housing, this housing has first window and Second Window, the part of described tripping is visible by described first window, and the part of described short circuit indication release member is visible by described Second Window.
19. Pyromagnetic release as claimed in claim 18, is characterized in that, has mark on the part of described tripping so that the motion of this mark can be by first window as seen to indicate this tripping whether to thread off.
20. Pyromagnetic release as claimed in claim 19, it is characterized in that, described short circuit indication release member has the nose bar that is positioned at described Second Window below, and this nose bar can be outstanding to indicate this short circuit indication release member to thread off from described Second Window when described short circuit indication release member is threaded off.
21. Pyromagnetic release as claimed in claim 20, it is characterized in that, if learn this tripping and all dropouts of this short circuit indication release member by observation, show normal operation circuit, if learn that this tripping is threaded off and this short circuit indication release member is not threaded off by observation, show circuit overloads, if learn that by observation this tripping and this short circuit indication release member all thread off, show short circuit.
22. a circuit breaker, is characterized in that, this circuit breaker comprises:
Pyromagnetic release as described as one of claim 1-21; And
Breaker body,
Wherein, the release member of this breaker body is associated with the tripping of described Pyromagnetic release, so that the release member of this breaker body is actuated in the dropout of the tripping of described Pyromagnetic release action, and then the main circuit of cut-off breaker.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210175584.7A CN103456577B (en) | 2012-05-30 | 2012-05-30 | Pyromagnetic release and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210175584.7A CN103456577B (en) | 2012-05-30 | 2012-05-30 | Pyromagnetic release and circuit breaker |
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| Publication Number | Publication Date |
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| CN103456577A true CN103456577A (en) | 2013-12-18 |
| CN103456577B CN103456577B (en) | 2015-12-23 |
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| CN201210175584.7A Active CN103456577B (en) | 2012-05-30 | 2012-05-30 | Pyromagnetic release and circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108573835A (en) * | 2017-03-09 | 2018-09-25 | Ls产电株式会社 | Breaker with instantaneous tripping mechanism |
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|---|---|
| CN103456577B (en) | 2015-12-23 |
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