CN202102992U - Operating mechanism and related apparatus used for electrical switch apparatus - Google Patents
Operating mechanism and related apparatus used for electrical switch apparatus Download PDFInfo
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- CN202102992U CN202102992U CN2011200517185U CN201120051718U CN202102992U CN 202102992 U CN202102992 U CN 202102992U CN 2011200517185 U CN2011200517185 U CN 2011200517185U CN 201120051718 U CN201120051718 U CN 201120051718U CN 202102992 U CN202102992 U CN 202102992U
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Abstract
一种用于电气开关装置的操作机构，电气开关装置包括彼此联结/分离的触点，操作机构包括：至少一个运动链，运动链具有操作地相互关联的多个构件，并操作地连接到电气开关装置的主轴上；框架，用于支承运动链并具有通过连接装置彼此联接的一对支承侧板；一个或多个第一弹性构件，适于为运动链提供联结/分离触点所需的能量；弹簧加载轴和致动机构，弹簧加载轴操作地连接到支承侧板上以便围绕第二转动轴线转动，致动机构操作地连接到弹簧加载轴上以使致动机构围绕第二转动轴线转动；运动链包括摇杆，摇杆将弹性构件操作地连接到弹簧加载轴，以便当弹簧加载轴转动时压缩弹性构件。
An operating mechanism for an electrical switching device, the electrical switching device comprising contacts coupled/disconnected from each other, the operating mechanism comprising: at least one kinematic chain having a plurality of members operatively interrelated and operatively connected to an electrical On the main shaft of the switching device; a frame for supporting the kinematic chain and having a pair of supporting side plates coupled to each other by connecting means; one or more first elastic members adapted to provide the kinematic chain with the required coupling/disconnection contacts energy; a spring loaded shaft and an actuation mechanism, the spring loaded shaft is operatively connected to the support side plate for rotation about the second axis of rotation, the actuation mechanism is operatively connected to the spring loaded shaft for the actuation mechanism about the second axis of rotation Rotation; the kinematic chain includes a rocker operatively connecting the elastic member to the spring-loaded shaft so as to compress the elastic member when the spring-loaded shaft is rotated.
Description
Technical field
The utility model relates to a kind of operating mechanism that preferably is used in the electrical switchgear in low pressure or the medium voltage network, and the electrical switchgear that uses this mechanism.
Background technology
Known; Be used for low-voltage electric system (promptly; Operating voltage reaches the application of 1000V AC/1500V DC) and middle piezoelectricity gas system is (promptly; Operating voltage is such as the application that reaches 30KV AC/DC) in switching device be to be designed to make the specific features of electrical system and the device of correctly operating with the operatively relevant load of specific features; Typical switching device is circuit breaker, automatic circuit breaker, isolating switch and contactor, is commonly called " switching device ", and is referred to as " circuit breaker " hereinafter.
Circuit breaker has one or more electrodes usually, and each electrode comprises at least one fixed contact and corresponding armature contact; These contacts are connected to and are used for the relevant terminal that is connected with the I/O of the electrical system that is associated.
A kind of specific operating mechanism causes the relative motion of paired electrode contact, thereby makes it can obtain coupled position (shutdown device) and separation point position (cut-off breaker).
The operation of this operating mechanism on armature contact carried out through main shaft usually, and this main shaft is operatively coupled on the armature contact through the contact retaining member.Especially, this operating mechanism generally comprises scaffold, and this scaffold supporting is suitable for giving at least one kinematic chain of motion of main shaft.
In operating mechanism; Usually have at least one release or automatic disconnection device; The situation of---for example short circuit or overload---takes place electric unusual in the system that inserts circuit breaker under, by at least one release of operation of one of breaker protection device or automatic disconnection device.When the operation releasing device, operating mechanism separates the contact fast, or the circuit breaker automatic disconnection.Protective device is hot type, magnetic-type, heat-magnetic-type or electronic type normally, and even can act on with interosculating.
The operating mechanism of known type is classified as at least two types: direct operating controller and energy prevention accumulation controller.Before a kind of controller be particularly suitable for undersized circuit breaker, such as, breaker of plastic casing (MCCB), then a kind of controller is particularly suitable for large-sized circuit breaker, such as, so-called air circuit (ACB) or be used for the pole circuit breaker of low-voltage and medium voltage circuit.Term " pole circuit breaker " is meant a kind of circuit breaker, portion within it, and the pole contact is arranged in closed chamber or the ball sealer in pairs.
As an example; Energy accumulation operating mechanism 60 at traditional type shown in Fig. 1; Removed the scaffold side plate so that see the kinematic chain that forms by a plurality of members that comprise spring 210, in the kinematic chain storage inside be used for the disconnection of circuit breaker and the energy of closed procedure.
In order to ensure the enough useful life of circuit breaker under its rated performance; The member of composition operating mechanism should have enough big size and be positioned in the gap between the scaffold side plate; So that support great thermal stress and the mechanical stress that its common (especially, during open-circuit operation or between the intervention period of short circuit hereinafter described) bears.For this reason, operating mechanism is heavy especially, and the convenience of this overall dimension to circuit breaker, manufacturing cost and installation and use has negative effect.Therefore in the prior art, proved and made progressively need and the improving its technical performance or keep the contradiction between the constant needs of its technical performance at least of miniaturization of circuit breaker and electrical system.
Consider that based on these purpose of the utility model provides a kind of reliable and operating mechanism of being easy to make, it can overcome above-mentioned shortcoming.
The utility model content
Above-mentioned purpose is through realizing according to indicated in the accompanying claims and hereinafter described operating mechanism and circuit breaker thereof.
Be merely explanation, in whole specification, will be with reference to the air that is used for low-voltage circuit and single disconnected formula multipole circuit breaker that comprise according to the operating mechanism of the utility model.
Principle of in whole following specification, setting forth and technical scheme are intended to be applicable to the air circuit with any amount pole of two kinds of other types; For example double break formula air circuit, and the circuit breaker that is used for the low-voltage and medium voltage system with sealing pole of any amount.Especially, for the application of heavy duty especially, can pole be doubled whole or in part.
An aspect according to the utility model; A kind of operating mechanism that is used for electrical switchgear, said electrical switchgear comprises the contact that interconnects/separate, and it is characterized in that; Said operating mechanism comprises: at least one kinematic chain; Said kinematic chain has a plurality of members that operatively are mutually related, and said kinematic chain is operatively coupled on the main shaft of said electrical switchgear, so that said kinematic chain is around first pivot axis; Framework, said framework are used to support said at least one kinematic chain, and have the supporting side plate that laterally connects each other through jockey; One or more first elastic components, said first elastic component are used to said kinematic chain provides the said contact of connection/separation required energy; Spring-loaded axle and actuating mechanism; Said spring-loaded axle is operatively coupled on the said supporting side plate so that around second pivot axis, said actuating mechanism be operatively coupled on the said spring-loaded axle so that said actuating mechanism around said second pivot axis; Said kinematic chain comprises rocking bar, and said rocking bar is operatively coupled to said one or more first elastic components on the said spring-loaded axle, compresses said one or more first elastic component when rotating with the said spring-loaded axle of box lunch.
Preferably, said operating mechanism also comprises: first signalling, and said first signalling is operatively coupled on the said main shaft, (connects and the primary importance of separating and the second place so that obtain to correspond respectively to the said contact of said electrical switchgear; The secondary signal device, said secondary signal device is used to obtain one or more positions, and each said position is corresponding to the mode of operation of said one or more first elastic components.
Preferably; Said rocking bar is operatively coupled on the said supporting side plate; So that around the swinging axle swing, said rocking bar comprises the pair of side plates that laterally is connected each other through first pin and second pin, and said first pin and second pin are arranged in the relative place, end of said pair of side plates.
Preferably; Said operating mechanism also comprises first end and first roller on the second end and second roller that is installed in said first connecting pin respectively; Said first roller and said second roller are respectively applied for first wheel disc and second wheel disc and operatively interact, and said first wheel disc and said second wheel disc are fixed on the said spring-loaded axle.
Preferably; Said first elastic component comprises a plurality of springs; Said a plurality of spring is along paralleling to the axis extension; And have the first end that is connected on said second connecting pin and with said first end opposite second end, said the second end is connected in the said jockey of said supporting side plate.
Preferably, said kinematic chain comprises: hook, and said hook is fixed on the pin, and said pin is operatively coupled on the said supporting side plate so that around the 3rd pivot axis; Toggle mechanism, said toggle mechanism comprises first pair of connecting rod and the second pair of connecting rod that operatively connects each other through fulcrum pin; Be operatively coupled to respectively on said main shaft and the said hook with respect to the end of said fulcrum pin said first pair of connecting rod respect to one another and the end of said second pair of connecting rod.
Preferably, said operating mechanism also comprises the plate with first convexity and second convexity, and said first convexity is operatively coupled on the end of said second pair of connecting rod, and said second convexity is operatively coupled on the said pin, and said hook is fixed on the said pin.
Preferably, the 3rd roller and the 4th roller are respectively installed on the first end and the second end of said fulcrum pin, and said the 3rd roller and said the 4th roller are used for operatively interacting with said rocking bar.
Preferably; Said kinematic chain comprises and articulates member; On the said said supporting side plate that is connected to said framework, make that the said member that articulates can be around the 4th pivot axis that is parallel to said first pivot center, at least one sticking department is limited to said articulating on the member with articulating component operation; The said member that articulates is used for obtaining: articulate operating position; Wherein, said articulating on the trip shaft that member is placed on said operating mechanism makes said at least one sticking department stop at least a portion of said hook; The lock out operation position, wherein, the said member that articulates separates with said trip shaft, and said at least one sticking department does not contact said at least a portion of said hook; Said trip shaft is operatively coupled on the said supporting side plate, makes said trip shaft can center on the 5th pivot axis, when said trip shaft is rotated, takes place from the said transformation that articulates operating position to said lock out operation position.
According to the another aspect of the utility model, a kind of electrical switchgear is characterized in that, said electrical switchgear comprises: aforementioned operation mechanism; One or more poles, each said pole has the contact retaining member, is equipped with at least one armature contact that can connect/separate with corresponding fixed contact in said pole inside; One or more bars, said bar are fixed on the main body of said main shaft, and said bar comprises said main shaft is operatively coupled to first bar on the said kinematic chain; One or more drive link; Each said drive link all have first end and with said first end opposite second end; Said first end is operatively coupled on the retaining member of corresponding contact, and said the second end is operatively coupled on the corresponding bar; One or more second elastic components, each said second elastic component all is contained in the retaining member of corresponding contact, and is used between said at least one armature contact and corresponding fixed contact, enough contact pressures being provided.
Preferably; Said rocking bar, said first pair of connecting rod, said bar, said drive link and said contact retaining member operatively connect each other; So that first power is passed to said at least one armature contact from said one or more first elastic components; Said first power is along the effect curves transmission, and when between said at least one armature contact and corresponding fixed contact, connecting, said effect curves is essentially circular arc.
Preferably; Said contact retaining member, said drive link, said first bar, said first pair of connecting rod and said second pair of connecting rod operatively connect each other; So that second power is passed to said pin from said one or more second elastic components, said hook is fixed on the said pin, and said second power is along the position transmission; When said at least one armature contact and the connection of said fixed contact, said position is essentially straight line.
Preferably, said electrical switchgear is the electrical switchgear that is used for low-voltage circuit, and wherein, said fixed contact and said armature contact are arranged in air or the sealed environment.
Preferably, said electrical switchgear is the electrical switchgear that is used for volt circuit, and wherein, said fixed contact and said armature contact are arranged in the sealed environment.
Description of drawings
From through shown in the non-limiting example the accompanying drawing according to the operating mechanism of the utility model and circuit breaker thereof preferably but in the explanation of not unique execution mode, can more be expressly understood further feature and advantage, wherein:
Fig. 1 is the perspective view of the energy prevention accumulation operating mechanism of known type;
Fig. 2 illustrates the air type three-pole breaker;
Fig. 3 is illustrated in the operating mechanism according to the utility model during the number of assembling steps of circuit breaker of Fig. 2;
Fig. 4 illustrates the decomposition view of the operating mechanism parts of Fig. 3;
Fig. 5 and Fig. 6 are the perspective views according to the different angles of the operating mechanism of the utility model;
Fig. 7 and Fig. 8 be the contact of circuit breaker is shown and be used for the contact retaining member of armature contact with according to the end view that is connected between the operating mechanism of the utility model, wherein removed the framework side plate; Especially, this operating mechanism illustrates with closed configuration and open configuration respectively.
Embodiment
For for simplicity, in whole specification, identical reference number will be used to indicate and belong to according to the identical of the different execution modes of the operating mechanism of the utility model or the member that is equal to.
With reference to figure 2, air type circuit breaker 1 has main case, and main case comprises and being arranged opposite to each other and two side plates 21 through connecting such as the detachable connecting device of screw or pull bar 70.Limit the antetheca of circuit breaker 1 as the anterior cover plate 22 of user interface.
The pole 3 of circuit breaker 1 is placed on and is included in two gaps between the side plate 21, and each pole comprises at least one armature contact 10 that can connect/separate with corresponding fixed contact 20.Preferably, first contact chip 11 is limited on the contact 10,20, is intended to continuous conduction current in circuit breaker 1, and second " starting the arc " sheet 12 is suitable for forming and cutting off the electric arc that when the closed and disconnected of circuit breaker 1, produces respectively.
Each armature contact 10 is contained in the contact retaining member 23 of insulating material (seeing Fig. 7 and Fig. 8); Especially, the centerbody of armature contact 10 is hinged on the corresponding contact retaining member 23.The quantity of armature contact 10 changes according to the performance of circuit breaker 1 in each contact retaining member 23.
In pole 3 inside, fixed contact 20 is connected to corresponding electric terminal 100 with armature contact 10, is electrically connected to allow the input and output of circuit breaker 1 in the system of its insertion.
Circuit breaker 1 comprises main shaft 50 (below be called " axle 50 "), and axle 50 is operatively coupled on the side plate 21 of circuit breaker 1, so that rotate around pivot center 200; Especially, the end of axle 50 is hinged to (see figure 3) on the side plate 21 through liner 52.
With reference to figure 3-8, circuit breaker 1 comprises energy prevention accumulation operating mechanism 30 with framework (below be called " mechanism 30 "), and this framework is by through jockey 43---for example pin, pull bar or spacing part---, and a pair of supporting side plate 31 that laterally connects each other constitutes.This framework is fixed on the main case of circuit breaker 1 through securing member 42.
At least one kinematic chain of frame support, at least one kinematic chain comprise a plurality of members of mechanism 30 and are operatively coupled on the axle 50, rotate so that make kinematic chain center on pivot center 200.Term " kinematic chain " is meant the one group of member that operatively interacts with one of actuator's 30 functions: therefore, framework can support the chain of more doing more physical exercises, and each kinematic chain is responsible for accomplishing a function.
The member of component movement chain preferably connects device mutual operation ground through pivot and connects and/or be connected on the framework; For example; By means of or not by means of carriage; Such as bearing brass or liner; And by means of or not by means of the operation sealing device, such as " Benzing " or " Seger " formula ring, the one or more pins that are limited on each of member of kinematic chain are hinged on the corresponding opening on the side plate 31 that is limited to framework.
Advantageously, framework is also carried out the function with liner 52 cooperation bolsters 50; Even under the heavier condition of work of circuit breaker 1, it is stable especially through main case is connected the whole structure that limits with mechanism 30 that this scheme also can keep.Especially, being configured as the connection end 81 of inserting in the corresponding bearing 51 is limited on each side plate 31; These bearings 51 are limited on axle 50 the main body so that coaxial with pivot center 200.Connect end 81 insert define in the bearings 51 a pair of hinged, this to hinged except that allowing rotating shaft 50 freely rotates, also with liner 52 cooperations carrying out the function of thrust bearing, and prevent spools 50 effectively along pivot center 200 slips.
What should specify is, though mechanism's 30 aiding support axles 50, and separate with the structure of circuit breaker 1, it is the standalone configuration with rock-steady structure; Like this, at first assembling mechanism 30, utilize shirtsleeve operation to be connected on the circuit breaker 1 then.
Preferably, mechanism 30 comprises signalling 53, and signalling 53 is suitable for obtaining corresponding respectively to the primary importance and the second place of the closed and disconnected state of circuit breaker 1.Signalling 53 is operatively coupled on the main shaft 50, so that acquisition corresponds respectively to the connection and the primary importance of separating and the second place of the contact 10,20 of electrical switchgear; Signalling 53 obtains in two positions under itself and one or more member 152 one of operatively interact; Member 152 is installed on the axle 50 so that therewith rotate with integral way.The position of signalling 53 indicates the operator through the visible indication of first window, and first window is limited on the anterior cover plate 22 of circuit breaker 1.
Cause that the kinematic chain that axle 50 rotates comprises rocking bar 80, rocking bar 80 is operatively coupled to elastic component 38 with spring-loaded axle 39, so that rotatablely moving of spring-loaded axle 39 converted into the compression of elastic component 38.
In illustrated embodiment, elastic component 38 comprises the spring 38 that is grouped into several possible configurations according to the size of circuit breaker 1 and operating mechanism 30 required energy, and the size of circuit breaker 1 and operating mechanism 30 required energy depend on required performance.For example, mechanism 30 can comprise single spring 38, a pair of spring 38 or two groups of springs that are arranged side by side, and each group comprises a pair of spring 38.The every pair of spring 38 extends along axle parallel to each other, this means two springs 38 possibly be side by side or coaxial.The first end of spring 38 is connected to through suitable jockey on second connecting pin 91 of rocking bar 80, and simultaneously, the first end relative with first end is placed on one of jockey 43 of framework, and for this purpose and suitable shaping.
Operatively; When each operator intervenes control lever 93; Through progressively increasing the angle (with reference to figure 7 and 8) of rocking bar 80 around the clockwise swing of vibrating shaft 202; Spring-loaded axle 39 counterclockwise rotates (still with reference to figure 7 and 8) predetermined angular, and the cam face of first wheel disc 89 and second wheel disc 95 slides on first roller 92 and second roller respectively.Caused second connecting pin 91 makes spring 38 compress from pivot center 200 to the separation of spring 38.When reaching the maximum compressibility of spring 38, be limited to the hook end of the securing rod 18 of hook portion 156 blocking mechanisms 30 on first wheel disc 89, this stops axle 39 further to rotate, and therefore stops rocking bar 80 further to be swung.Like this, spring 38 remains under its most compressed state.
Shown in mechanism 30 comprise the signalling 96 of the stress state of spring 38, signalling 96 obtains the several position corresponding to the operative configuration that is reached by spring-loaded axle 39 and device 83.Produce and detecting at the one or more protective devices by circuit breaker 1 under the situation of the disconnection control appearance that forms after the short circuit, device 83 is responsible for stoping the closed procedures of mechanism 30.
The signal of cams is taken turns 97 keys and is connected on the spring-loaded axle 39, and signal wheel 97 is preferably processed by plastic material, and is suitable for when it rotates around pivot center 201 and signalling 96 interactions.As an example, signalling 96 obtainable positions have three kinds and indicate some indications about the virtual condition of spring 38: unloaded spring, loading spring or loading and be ready to complete the spring of the closed procedure of mechanism 30.The operator can see these indications through second window 98 on the anterior cover plate 22 that is limited to circuit breaker 1.
The kinematic chain that causes axle 50 rotation also comprises toggle mechanism, and this toggle mechanism has through fulcrum pin 99 and is operatively coupled to first pair of connecting rod 33 on second pair of connecting rod 34.The 3rd roller 35 and the 4th roller 35 are installed in respectively on the first end and first end of fulcrum pin 99, and are suitable for operatively interacting with rocking bar 80.
End about fulcrum pin 99 first pair of connecting rod 33 respect to one another and second pair of connecting rod 34 is operatively coupled to respectively on the hook 32 of axle 50 and mechanism 30.
Hook 32 is fixed to an end of pin 100, and pin 100 is operatively coupled on the supporting side plate 31 of framework, can rotate around the pivot center that is parallel to pivot center 200 204 so that link up with 32.
In Fig. 4, the execution mode shown in 7 and 8; Articulate member 32 and have part 40; When accomplishing closure or opening operation respectively, during resting position that hook 32 is placed on shown in its Fig. 7 and 8, part 40 is suitable for being placed at least one member of operating mechanism 30; For example, be placed on the stretching out on the pin (invisible in the drawings) of framework side plate 31.
The end of first pair of connecting rod 33 is operatively coupled on the axle 50 through first bar 54, and first bar 54 is fixed on the axle 50 so that rotate integratedly with axle 50.
The end of second pair of connecting rod 34 is operatively coupled on the hook 32 through the plate with one or more convexities.In the drawings, three raised plate 101 have the convexity of first on the end that is hinged to second pair of connecting rod 34 and are operatively coupled to second convexity on the pin 100, and hook 32 is fixed on the pin 100.
Consider the open configuration (see figure 8) of mechanism 30, in mechanism 30 inside, spring 38 has been in most compressed state and has prepared to carry out closed procedure.This closed procedure is through pushing close push button 151 (" 1 " or " ON ") beginning, and close push button 151 can be approaching through the 3rd window on the anterior cover plate 22.Especially, mechanism 30 comprises the closed axle 16 on the supporting side plate 31 that is hinged on framework; Button 151 is operatively coupled on the closed axle 16, so that closed axle 16 rotates when operation.Closed bar 18 is intervened in this rotation so that break off relations in its mounting part 156 from first wheel disc 89, causes spring 38 to become elongation state suddenly from compressive state.
The spring 38 of elongation makes rocking bar 80 counterclockwise swing (with reference to figure 7 and 8); During this recovery phase; The 3rd roller 35 of toggle mechanism fulcrum pin 99 and the 4th roller 35 lean against on the appropriate section of rocking bar 80 and above that and slide, so that receive thrusts from rocking bar 80.Rocking bar 80 and toggle mechanism are positioned in the gap between the supporting side plate 31 that is included in framework, so that when accomplishing closed procedure, rocking bar 80 will arrive following position, center, and wherein, rocking bar 80 will become with the 3rd roller 35 and separate with the 4th roller 35.
Advantageously; Therefore; Rocking bar 80 is both as the sliding component that connects between spring during the closed procedure 38 and the toggle mechanism; Again as mechanical lever, during the compression step of spring 38, this mechanical lever will be applied to first power on its first arm and convert at its second arm place and be applied to second power on the spring 38.
The thrust that is provided by rocking bar 80 is used to make the fulcrum pin 99 of toggle mechanism to separate with pivot center 201, and makes it near pivot center 200, aligns basically up between the first pair of connecting rod 33 of toggle mechanism and the second pair of connecting rod 34.The motion of first pair of connecting rod 33 makes the bar 54 of winning rotate (with reference to figure 7 and 8) with axle 50 around pivot center 200 clockwise directions.
Except that first bar 54, other bar 54 is fixed on the main body of axle 50.Each bar 54 preferably connects the first end that device is hinged to corresponding driving connecting rod 55 through pivot; Especially, each drive link 55 can be rotated about corresponding bar 54, limits the pivot center 205 that is parallel to pivot center 200.
The first end of each drive link 55 is operatively coupled on the contact retaining member 23 relevant with the pole of circuit breaker 13.During closed procedure, therefore the rotation of axle 50 converts the motion of contact retaining member 23 to fixed contact 20 into through the interaction of bar 54-connecting rod 55, so that first contact chip 11 of contact 10 and 20 is connect.
Rocking bar 80, first pair of connecting rod 33, bar 54, drive link 55 and contact retaining member 23 operatively interconnect, so that closing contact 10,20 required power are passed to armature contact 10 from spring 38; This power is along the effect curves transmission, and after the open configuration from mechanism 30 was converted to closed configuration, above-mentioned effect curves was more and more near circular arc or parabola shape partly.
Can see among Fig. 7 that in the connection stage of the contact 10,20 that in the final step of closed procedure, takes place, power effect curve is circular arc F haply
1Like this, through optimizing the transmission that during the final step that makes armature contact 10 near fixed contact 20, reaches the mechanical torque of peak value, make the potential energy that is stored in the spring 38 be passed to armature contact 10.
Because this scheme, overall dimension is enough to operating breaker less than the mechanism 30 of traditional mechanism, and the energy of this required by task is compared lower with traditional mechanism.For example; Circuit breaker for 3200A; The mechanism 30 that volume reduces is used for the required energy of its operation and compares low approximately 15% with the required energy of the operating mechanism of traditional type, guarantees in closed procedure effectively mechanical torque simultaneously, and therefore; Its overall performance is equal to the mechanism of traditional type, and this mechanism 30 is enough.
When armature contact 10 is attached to 20 last times of fixed contact, contact retaining member 23 is towards the fixed contact 20 demarcation part that moves forward.Like this, when accomplishing closed procedure, the position after armature contact 10 is arranged on and leans on relatively about contact retaining member 23.This back mistake with respect to contact retaining member 23 causes (with reference to figure 7 and 8) by current collector 10 with respect to the clockwise direction rotation institute that contact retaining member 23 centers on the pivot center 206 that is parallel to pivot center 200.The one or more elastic components 157 of this rotation (with reference to figure 7) decision are preferably the compression of spring 157, and elastic component 157 is contained in the contact retaining member 23 and is suitable for providing and demarcates the enough contact pressures between first contact chip 11.Elastic component 157 is used between at least one armature contact 10 and corresponding fixed contact 20, enough contact pressures being provided.Like this, during the final step of closed procedure, the part of the potential energy of initial storage in spring 38 is passed to elastic component 157, keeps above-mentioned potential energy up to carrying out opening operation.
In case compression, elastic component 157 applies power on each drive link 55; Each such power is passed to axle 50 through a bar 54.
Be discharged into the total power on the axle 50 through this group connecting rod 55; Be passed to pin 100 through first bar 54, toggle mechanism and three raised plate 101, and will be tending towards causing pin 100 and cause that thus hook 32 counterclockwise rotates (with reference to figure 7 and 8) around the pivot centers 204 of himself.Yet, in the closed configuration of mechanism 30, hook 32 stop be suitable for keeping the mechanism 30 that locks articulate member 36 time, thereby stop above-mentioned rotation.Therefore, lock shaft 50 conversely, and, pass through the supporting side plate 31 of the end release of pin 100 through total power that connecting rod 55 is applied on the axle 50 to framework.
Closed configuration with reference to the mechanism 30 shown in the figure 7; First pair of connecting rod 33 and second pair of connecting rod 34 of contact retaining member 23, drive link 55, first bar 54, toggle mechanism operatively interconnect; So that work effectively down and will be passed to pin 100 in traction, link up with 32 and be fixed on the pin 100 by the power that elastic component 157 produces.This power is along the position F shown in Fig. 7
2(or sticking slip F
2) transmit, when the contact 10,20 of circuit breaker 1 connects, position F
2Be straight line haply.Especially, the power that is produced by member 157 is along this position F
2Be passed to three raised plate 101, and finally be passed to the supporting side plate 31 of framework from three raised plate 101 through pin 100.
Articulate on the supporting side plate 31 that member 36 is operatively coupled to framework, so that can rotate around the pivot center that is parallel to pivot center 200 208.In the example shown, articulate on the jockey 43 that member 36 is hinged to supporting side plate 31.Articulate member 36 and comprise first end, at least one sticking department 37 is limited on the first end, and, articulate member 36 and be suitable for obtaining to articulate operating position (closed configuration place) and breaking away from operating position (open configuration place) in mechanism 30 in mechanism 30.Articulating the position, the first end that articulates member 36 is placed on the trip shaft 15 of mechanism 30, rotates around pivot center 208 thereby prevent to articulate member 36.In this case, sticking department 37 stops at least a portion of hook 32, makes its maintenance static.
Operatively, when the opening operation of mechanism 30 begins, trip shaft 15 rotations; So that other part is moved to the second end that articulates member 36; Articulate member 36 from articulating position transition, wherein, articulate member 36 and become from the body portion of trip shaft 15 and leave to the off-position.Especially, groove 13 is limited on the main body of trip shaft 15, and when rotating with convenient trip shaft 15, the first end that articulates member 36 passes groove 13 to be separated with trip shaft 15.
The rotation of trip shaft 15 can be through pushing the automatic intervention of cut-off push button 150 (" 0 " or " OFF ") or the one or more protective devices through circuit breaker 1---such as the electronic relay among Fig. 3, or again the intervention through cutoff solenoid cause, can be through the four-light mouth on the anterior cover plate 22 near cut-off push button 150.Especially, trip shaft 15 comprises one or more actuation part, and other actuator operated ground of each actuation part and protective device, button 150 or circuit breaker 1 interacts.As an example, the member 19 of visible operating mechanism 30 in Fig. 5, member 19 is operatively coupled to button 151, during with convenient pressing button 151 to corresponding actuation part 17 slide and with its interaction.
Compare with 8 with Fig. 7, articulate member 36 in case separate with trip shaft 15, just free movement under the effect of biasing spring is counterclockwise rotated around pivot center 208.Owing to articulate this rotation of member 36, hook 32 and pin 100 counterclockwise freely rotate predetermined angular (with reference to figure 7 and 8) around pivot center 204 successively under the effect of the power that is passed to pin 100 through elastic device 157.
Three raised plate 101 are operatively coupled on the end of second pair of connecting rod 34 of pin 100 and toggle mechanism, so that the bending when pin 100 counterclockwise rotates of toggle mechanism, cause the dislocation between the first pair of connecting rod 33 and the second pair of connecting rod 34.Especially, the fulcrum pin 99 of toggle mechanism separates with the pivot center 200 of axle 50, and near the pivot center 201 of spring-loaded axle 39, obtains position shown in Figure 8 once more.The said motion of the member of toggle mechanism is by at least one spring 154 (see figure 6)s guiding, and an end of spring 154 is articulated on the framework of mechanism 30.
The bending of toggle mechanism has determined first bar 54 and axle 50 to rotate (with reference to figure 7 and 8) around the unexpected counter clockwise direction of pivot center 200, makes the interaction of contact 10,20 through bar 54, drive link 55 of circuit breaker 1 effectively separate.
In addition, can be the electrical switchgear 1 that is used for low-voltage circuit according to the electrical switchgear of the utility model, wherein, fixed contact 20 is arranged in air or the sealed environment with armature contact 10.
In addition, can be the electrical switchgear that is used for volt circuit according to the electrical switchgear of the utility model, wherein, fixed contact 20 is arranged in the sealed environment with armature contact 10.
The operating mechanism of associating thus is easy to carry out multiple variation and modification, and all these variations and modification are all in the scope of the utility model design; In addition, all details all can be replaced by other skill element that is equal to.In the practice, the type of material in the scope of the application of the size of operating mechanism member and geometry and above-mentioned imagination all can change with prior art as required.
Claims (14)
1. operating mechanism (30) that is used for electrical switchgear (1), said electrical switchgear (1) comprises the contact (10,20) that interconnects/separate, and it is characterized in that said operating mechanism (30) comprising:
At least one kinematic chain; Said kinematic chain has a plurality of members that operatively are mutually related (32,33,34,36,80); Said kinematic chain is operatively coupled on the main shaft (50) of said electrical switchgear (1), so that said kinematic chain rotates around first pivot center (200);
Framework, said framework are used to support said at least one kinematic chain, and have the supporting side plate (31) that laterally connects each other through jockey (43);
One or more first elastic components (38), said first elastic component (38) are used to said kinematic chain and provide and connect/separate the required energy in said contact (10,20);
Spring-loaded axle (39) and actuating mechanism; Said spring-loaded axle (39) is operatively coupled to said supporting side plate (31) upward so that rotate around second pivot center (201), and said actuating mechanism is operatively coupled to said spring-loaded axle (39) upward so that said actuating mechanism centers on said second pivot center (201) rotation;
Said kinematic chain comprises rocking bar (80); Said rocking bar (80) is operatively coupled to said one or more first elastic components (38) on the said spring-loaded axle (39), compresses said one or more first elastic components (38) when rotating with the said spring-loaded axle of box lunch (39).
2. operating mechanism according to claim 1 (30) is characterized in that, said operating mechanism (30) comprising:
First signalling (53), said first signalling (53) is operatively coupled on the said main shaft (50), so that acquisition corresponds respectively to the connection and the primary importance of separating and the second place of the said contact (10,20) of said electrical switchgear (1);
Secondary signal device (96), said secondary signal device (96) is used to obtain one or more positions, and each said position is corresponding to the mode of operation of said one or more first elastic components (38).
3. operating mechanism according to claim 1 (30); It is characterized in that; Said rocking bar (80) is operatively coupled on the said supporting side plate (31); So that around swinging axle (202) swing, said rocking bar (80) comprises the pair of side plates that laterally is connected each other through first pin (90) and second pin (91), and said first pin (90) and second pin (91) are arranged in the relative place, end of said pair of side plates.
4. operating mechanism according to claim 3 (30); It is characterized in that; Said operating mechanism (30) comprises the first end that is installed in said first connecting pin (90) respectively and first roller (92) and second roller on the second end; Said first roller (92) and said second roller are respectively applied for first wheel disc (89) and second wheel disc (95) and operatively interact, and said first wheel disc (89) and said second wheel disc (95) are fixed on the said spring-loaded axle (39).
5. operating mechanism according to claim 4 (30); It is characterized in that; Said first elastic component (38) comprises a plurality of springs (38); Said a plurality of spring (38) is along the extension that parallels to the axis, and have the first end that is connected on said second connecting pin (91) and with said first end opposite second end, said the second end is connected in the said jockey (43) of said supporting side plate (31).
6. operating mechanism according to claim 4 (30) is characterized in that, said kinematic chain comprises:
Hook (32), said hook (32) is fixed on the pin (100), and said pin (100) is operatively coupled to said supporting side plate (31) and goes up so that rotate around the 3rd pivot center (204);
Toggle mechanism, said toggle mechanism comprises first pair of connecting rod (33) and the second pair of connecting rod (34) that operatively connects each other through fulcrum pin (99);
Be operatively coupled to respectively on said main shaft (50) and the said hook (32) with respect to the end of said fulcrum pin (99) said first pair of connecting rod respect to one another (33) and the end of said second pair of connecting rod (34).
7. operating mechanism according to claim 6 (30); It is characterized in that; Said operating mechanism (30) comprises the plate with first convexity and second convexity; Said first convexity is operatively coupled on the end of said second pair of connecting rod (34), and said second convexity is operatively coupled on the said pin (100), and said hook (32) is fixed on the said pin (100).
8. operating mechanism according to claim 6 (30); It is characterized in that; The 3rd roller and the 4th roller are respectively installed on the first end and the second end of said fulcrum pin (99), and said the 3rd roller and said the 4th roller are used for operatively interacting with said rocking bar (80).
9. operating mechanism according to claim 8 (30); It is characterized in that; Said kinematic chain comprises and articulates member (36), and said articulating on the said supporting side plate (31) that member (36) is operatively coupled to said framework makes the said member (36) that articulates to rotate around the 4th pivot center (208) that is parallel to said first pivot center (200); At least one sticking department (37) is limited to said articulating on the member (36), and the said member (36) that articulates is used for obtaining:
Articulate operating position, wherein, said articulating on the trip shaft (15) that member (36) is placed on said operating mechanism (30) makes said at least one sticking department (37) stop at least a portion of said hook (32);
The lock out operation position, wherein, the said member (36) that articulates separates with said trip shaft (15), and said at least one sticking department (37) does not contact said at least a portion of said hook (32);
Said trip shaft (15) is operatively coupled on the said supporting side plate (31); Make said trip shaft (15) to rotate, when said trip shaft (15) is rotated, take place from the said transformation that articulates operating position to said lock out operation position around the 5th pivot center (207).
10. an electrical switchgear is characterized in that, said electrical switchgear comprises:
According to each described operating mechanism (30) among the claim 1-9;
One or more poles (3), each said pole (3) has contact retaining member (23), is equipped with at least one armature contact (10) that can connect/separate with corresponding fixed contact (20) in said pole (3) inside;
One or more bars (54), said bar (54) is fixed on the main body of said main shaft (50), and said bar (54) comprises said main shaft (50) is operatively coupled to first bar (54) on the said kinematic chain;
One or more drive link (55); Each said drive link (55) all have first end and with said first end opposite second end; Said first end is operatively coupled on the corresponding contact retaining member (23), and said the second end is operatively coupled on the corresponding bar (54);
One or more second elastic components (157); Each said second elastic component (157) all is contained in the corresponding contact retaining member (23), and is used between said at least one armature contact (10) and corresponding fixed contact (20), enough contact pressures being provided.
11. electrical switchgear according to claim 10; It is characterized in that; Said rocking bar (80), said first pair of connecting rod (33), said bar (54), said drive link (55) and said contact retaining member (23) operatively connect each other; So that first power is passed to said at least one armature contact (10) from said one or more first elastic components (38); Said first power is along the effect curves transmission, and when between said at least one armature contact (10) and corresponding fixed contact (20), connecting, said effect curves is essentially circular arc (F1).
12. electrical switchgear according to claim 10; It is characterized in that; Said contact retaining member (23), said drive link (55), said first bar (54), said first pair of connecting rod (33) and said second pair of connecting rod (34) operatively connect each other; So that second power is passed to said pin (100) from said one or more second elastic components (157), said hook (32) is fixed on the said pin (100), and said second power is transmitted along position (F2); When said at least one armature contact (10) connect with said fixed contact (20), said position was essentially straight line.
13. electrical switchgear according to claim 10 is characterized in that, said electrical switchgear is the electrical switchgear (1) that is used for low-voltage circuit, and wherein, said fixed contact (20) and said armature contact (10) are arranged in air or the sealed environment.
14. electrical switchgear according to claim 10 is characterized in that, said electrical switchgear is the electrical switchgear that is used for volt circuit, and wherein, said fixed contact (20) and said armature contact (10) are arranged in the sealed environment.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI2010U000058 | 2010-03-01 | ||
| ITMI20100058 ITMI20100058U1 (en) | 2010-03-01 | 2010-03-01 | CONTROL MECHANISM FOR ELECTRIC SWITCHING DEVICES AND ITS DEVICE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202102992U true CN202102992U (en) | 2012-01-04 |
Family
ID=43741222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200517185U Expired - Lifetime CN202102992U (en) | 2010-03-01 | 2011-02-28 | Operating mechanism and related apparatus used for electrical switch apparatus |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN202102992U (en) |
| IT (1) | ITMI20100058U1 (en) |
| RU (1) | RU109326U1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3008542B1 (en) * | 2013-07-09 | 2015-10-02 | Schneider Electric Ind Sas | CIRCUIT BREAKER RESET DETECTION DEVICE, ACTUATOR FOR CIRCUIT BREAKER CONTACTS SEPARATION MECHANISM, ELECTRIC CIRCUIT BREAKER AND USE OF INDUCED CURRENT FOR GENERATING REARMING INDICATION SIGNAL |
| SI25460B (en) * | 2017-06-06 | 2021-11-30 | Nela Razvojni Center Za Elektroindustrijo In Elektroniko, D.O.O. | Improved thermomagnetic actuator in a security electric switch |
-
2010
- 2010-03-01 IT ITMI20100058 patent/ITMI20100058U1/en unknown
-
2011
- 2011-02-28 CN CN2011200517185U patent/CN202102992U/en not_active Expired - Lifetime
- 2011-02-28 RU RU2011107612/07U patent/RU109326U1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| RU109326U1 (en) | 2011-10-10 |
| ITMI20100058U1 (en) | 2011-09-02 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |
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| CX01 | Expiry of patent term |