CN101826425B - Operating mechanism of electric switch - Google Patents
Operating mechanism of electric switch Download PDFInfo
- Publication number
- CN101826425B CN101826425B CN2010101554957A CN201010155495A CN101826425B CN 101826425 B CN101826425 B CN 101826425B CN 2010101554957 A CN2010101554957 A CN 2010101554957A CN 201010155495 A CN201010155495 A CN 201010155495A CN 101826425 B CN101826425 B CN 101826425B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- side plate
- spring
- bar
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention relates to an operating mechanism of an electric switch, which belongs to the technical field of low-voltage electric appliances. The operating mechanism of an electric switch comprises a first side plate, a second side plate, a manual control device and a releasing device, wherein the first side plate and the second side plate are mutually connected; the releasing device comprises a locking and buckling rod, an upper connecting rod, a lower connecting rod and a spring assembly; the locking and buckling rod is configured on the upper connecting rod, and the locking and buckling rod and the upper connecting rod are coaxially arranged on the first side plate and the second side plate. The operating mechanism of an electric switch is characterized in that a first limiting groove is opened on the first side plate and corresponds to the upper end of the spring assembly; a second limiting groove is opened on the second side plate; the spring assembly comprises a main spring maintaining frame and a main spring; the main spring is sleeved on the main spring maintaining frame; the upper part of the main spring maintaining frame is supported on the upper connecting rod and matched with the first limiting groove and the second limiting groove in a sliding way, and the lower part of the main spring maintaining frame is supported on the lower connecting rod. The switching-off speed and the separating capability are improved; an ideal maintaining moment can be provided just with the spring force of the smaller spring assembly; and the mechanical service life of the operating mechanism is protected.
Description
Technical field
The invention belongs to the low voltage electrical apparatus technology field, be specifically related to a kind of operating mechanism of electric switch.
Background technology
Such as industry the reason of knowledge, the function of electric switch is a protective circuit, when on detecting circuit, existing such as the electric fault that caused by short circuit or overload etc., just automatic shutoff circuit is promptly opened dynamic/static contact, divides the big electric current of fault in the deenergizing.In electric switch, dispose main spring usually, industry claims that also main spring is the dropout spring, the falling of the moving contact after utilizing releasing energy of main spring to embody disjunction (also claiming separating brake) speed and prevent to be scolded out by electrodynamic repulsion force.Therefore, opening velocity whether quick and can prevent fully that behind separating brake moving contact from falling after rise is an important technology index considering electric switch.
In the operating process of electric switch; Particularly in dropout separating brake process, moving contact is scolded out by big electric current, and control lever need arrive maximum open position as early as possible under the effect of main spring; Use and stop dynamic and static contact closed once more, therefore very harsh usually to the requirement of the opening speed of control lever.In technical scheme: under the effect of the hitting power of electromagnetic tripping apparatus by the operating mechanism of the disclosed electric switch of U.S. Pat 6307455B1; Control lever and deadlock lever release; Promote stabiliser bar simultaneously and rotate around the axis, make the first half and the moving lever release of stabiliser bar, under the effect of dropout spring; Control lever rotates around its rotating shaft clockwise direction; Swing arm is made clockwise direction around its rotating shaft and is rotated, and driving manual control part simultaneously is the manual overvide motion, touches and spacing up to swing arm and control lever.Stabiliser bar promotes the auxiliary contact indicating arm, makes auxiliary contact arrive the dropout position, and the main spring that two ends are individually fixed on the upper and lower connecting rod releases energy, and Be Controlled bar, swing arm and manual control part absorb simultaneously.
The shortcoming that above-mentioned United States Patent (USP) scheme exists is: the falling of the moving contact after being not enough to prevent to scold out; That is to say that the moving contact that is difficult to make after scolding out remains on reliably scolds open position; Because, though being applied with to control lever through first strong point, main spring (patent is claimed the spring of threading off) make moving contact remain in the holding torque of separating brake position; Main spring is applied with one through second strong point to swing arm simultaneously and returns moment; Because the final Be Controlled bar of swing arm is spacing, therefore, main spring has applied a moment opposite with opening moment through swing arm to control lever; Thereby the suffered total holding torque of control lever is weakened, and the falling of the moving contact of the weakening of the holding torque of control lever after scolding out for prevention is totally unfavorable.
In fact; Adopt conventional mentality of designing can remedy aforesaid shortcoming; That is exactly to improve opening velocity and the confining force that increases the separating brake position with the spring force that increases main spring, and still, design facts have proved and can bring atypical problem more harm than good this time; So-called " profit " is that opening velocity is improved and the maintenance effect of separating brake position can be improved, and cause serious harm the mechanical endurance that so-called " fraud " is whole operation mechanism.Therefore; How in dropout separating brake process, not only guaranteed desirable opening velocity and prevented effectively to be fallen after rise but also do not show and find between the two the mechanical endurance that undermines whole operation mechanism rational balance point to become that industry is paid close attention to and phase to get the technical problem of early settlement by the moving contact after scolding out; This applicant long-term exploration and practice have been carried out; Found the way of dealing with problems, the technical scheme that will introduce below produces under this background.
Summary of the invention
Task of the present invention is to provide and in dropout separating brake process, had both helped to make full use of the energy that main spring discharges under a kind of prerequisite that need not to rely on the spring force that increases main spring and use and improve opening velocity and avoid effectively by the falling of the moving contact after scolding out, and helps protecting the operating mechanism of electric switch of the mechanical endurance of operating mechanism again.
Task of the present invention is accomplished like this, and a kind of operating mechanism of electric switch comprises: first, second side plate, this first, second side plate face each other and are provided with and are connected to each other together; One manual overvide between first, second side plate; One trip gear that constitutes by locking-bar, upper and lower connecting rod and spring assembly; Locking-bar is equipped on the connecting rod, and locking-bar and last connecting rod is coaxial is arranged on first, second side plate, wherein; Locking-bar is corresponding with said manual overvide; Be connected with manual overvide and go up connecting rod, locking-bar and last connecting rod match with the top of lower link separately, and the bottom pivot of lower link is arranged on first, second side plate; Be characterised in that: offer one first stopper slot on described first side plate and at position corresponding to the upper end of described spring assembly; And offer second stopper slot that a position is corresponding with said first stopper slot and shape is identical with first stopper slot on described second side plate equally, and said spring assembly comprises a main spring retainer and a main spring, main spring is set on this main spring retainer; Wherein, The upper support of main spring retainer and is slidingly matched with described first, second stopper slot on described on the connecting rod, and the lower support of main spring retainer is on described lower link.
In a concrete embodiment of the present invention, described first stopper slot is made up of the first groove section of arc, the second groove section and first flex point of arc, wherein; First flex point is between first, second groove section, and described second stopper slot is made up of the three-flute section of arc, the 4th groove section and second flex point of arc equally, wherein; Second flex point is between the 3rd, the 4th groove section, and described main spring retainer comprises carriage release lever, expansion link and sliding axle, and sliding axle is located at the end, upper end of carriage release lever; This sliding axle is bearing in described going up on the connecting rod; And an end of sliding axle is inserted in said first stopper slot, and the other end is then stretched and placed said second stopper slot, and the central authorities of the lower end of carriage release lever have an expansion link hole; One end of expansion link is inserted in the expansion link hole, and the other end is bearing on the described lower link.
In another concrete embodiment of the present invention; Describedly go up connecting rod identical and last connecting rod piece that be connected to each other constitutes by a pair of shape opposite each other; On each the lower end of connecting rod piece be extended with one with the corresponding long leg that is used to make sliding axle to move to said the second, the 4th groove section of said sliding axle from said first, three-flute section, on each connecting rod piece corresponding to be extended with above the said long leg same and a said sliding axle corresponding be used for sliding axle from said the second, the 4th groove section towards first, the short-leg that moves of three-flute section.
In another concrete embodiment of the present invention; Identical and a pair of lower link sheet that be connected to each other constitutes described lower link by shape opposite each other; The top of each lower link sheet constitutes first connecting rod arm and second connecting rod arm; The first connecting rod arm matches with described locking-bar; The second connecting rod arm matches with the described connecting rod of going up; Have a hamulus at the top of first connecting rod arm, hamulus matches with described locking-bar, and has a convexity at the middle part of second connecting rod arm and in the face of a side of first connecting rod arm; Described first side plate be provided with one protrude in a side of first side plate first restriction protrusion on plane; And be provided with equally on described second side plate one protrude in second side plate a side the plane and position and corresponding second restriction protrusion of said first restriction protrusion, the convexity on one of them the second connecting rod arm in a pair of second connecting rod arm is corresponding with described first restriction protrusion, and the convexity on another second connecting rod arm in a pair of second connecting rod arm is corresponding with described second restriction protrusion.
In another concrete embodiment of the present invention; Described manual overvide is made up of moving lever and stabiliser bar; The stabiliser bar pivot is arranged between first, second side plate, and matches with moving lever, and moving lever is then sliding up or down to be assigned on first, second side plate; Described locking-bar is corresponding with said stabiliser bar, and the described connecting rod of going up is connected with moving lever.
Also have among the concrete embodiment of the present invention; Offer a stabiliser bar configured slot in the upper end of described moving lever, offer one second back-moving spring location hole in the bottom of moving lever, respectively have a guide vane end stop platform on the cell wall of the corresponding both sides on the top of described stabiliser bar configured slot; A pair of guide vane end stop platform corresponds to each other; Described stabiliser bar comprises first body of rod, second body of rod, back-moving spring and returning spring, and first, second body of rod is connected to each other, and the nearly middle part of the short transverse of described first body of rod constitutes one and is used to make the neck of the upper end of first body of rod with respect to the rotation of second body of rod; Second body of rod is taken first body of rod pivot and is arranged between described first, second side plate; And second body of rod is arranged in the described stabiliser bar configured slot accordingly, and a side of the lower end of second body of rod offers one first back-moving spring location hole, and an end of described back-moving spring is fixed on the first back-moving spring location hole; The other end is fixed on the described second back-moving spring location hole; The upper end of first body of rod and towards a side of said second body of rod be extended with one be used to limit said moving lever motion confinement block, confinement block matches with described guide vane end stop platform, the lower end of first body of rod is extended with a returning spring hanging feet; One end of described returning spring is hung on the spring of upper end of described first body of rod fixedly on the bead; The other end then is hung on the described returning spring hanging feet, and the side in the upper end of second body of rod has an effect piece, and this effect piece is corresponding with described locking-bar and promoted by locking-bar; The middle part of one side of the short transverse of said moving lever is extended with a cantilever, and the described connecting rod of going up is hung on the described cantilever.
more of the present invention and among concrete embodiment; Offer on described first side plate and be used to first, second shifting chute of supplying said moving lever cunning to join; First, second shifting chute keeps upper and lower correspondence each other; Offer on described second side plate and be used to the 3rd, the 4th shifting chute that supplies described moving lever cunning to join equally, the 3rd, the 4th shifting chute keeps upper and lower correspondence each other, and the 3rd shifting chute is corresponding with first shifting chute; And the 4th shifting chute is corresponding with second shifting chute; The corresponding both sides of the short transverse of described moving lever have respectively extended a pair of moving lever and have moved projection, and wherein a pair of moving lever of a side moves projection and is placed in described first, second shifting chute, is placed in described the 3rd, the 4th shifting chute and a pair of moving lever of opposite side moves projection.
In of the present invention and then concrete embodiment, the corresponding both sides of the lower end of said locking-bar respectively are extended with a snap close spindle nose, and the top of said first connecting rod arm has a hamulus, and said snap close spindle nose matches with hamulus.
Technical scheme provided by the invention is owing to offered first stopper slot on first side plate; Simultaneously on second side plate, offered second stopper slot, and made spring assembly have one can to take the main spring retainer that main spring moves on first, second shifting chute, the effect of generation is following: in the separating brake process; The energy that main spring discharges all is transformed on the lower link; Make lower link rapidly move to maximum open position, make dynamic/static contact keep separating, thereby improve opening velocity and breaking capacity; In moving contact falling process, main spring is compressed in moving contact falling process, and the moment of opening that provides constantly increases, thereby reduces the falling distance of moving contact; At the dropout gate-dividing state; Spring assembly only applies the power that a contact is opened direction to lower link; And do not have structure described in U.S. Pat 6307455B1, and apply a reverse power through last connecting rod to lower link, weaken the holding torque that spring assembly provides to contact system; Thereby as long as the spring force of less spring assembly just can provide a desirable holding torque.Simultaneously, under the situation that reaches above-mentioned three kinds of effects, owing to do not increase the spring force of spring assembly, thereby protected the mechanical endurance of operating mechanism.
Description of drawings
Fig. 1 is a concrete embodiment assembling assumption diagram of the present invention.
Fig. 2 is the structure chart of the locking-bar of trip gear of the present invention.
Fig. 3 is the structure chart of the last connecting rod of trip gear of the present invention.
Fig. 4 is the structure chart of the lower link of trip gear of the present invention.
Fig. 5 is in the sketch map that state is detained in energy storage again for the present invention.
Fig. 6 is in the sketch map of dropout gate-dividing state for the present invention.
Embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more; The applicant general combines accompanying drawing to elaborate with the mode of embodiment below; But the description to embodiment all is not the restriction to the present invention program, any according to the present invention design done only for pro forma but not substantial equivalent transformation all should be regarded as technical scheme category of the present invention.
Ask for an interview Fig. 1; According to known general knowledge,, except operating mechanism, also have housing and magnetic flux mapping device 9 and contact mechanism 10 (see figure 5)s etc. as electric switch; Because these parts belong to known technology, so the applicant has only illustrated the magnetic flux mapping device 9 that comprises magnetictrip 91 in Fig. 1.The shape of first, second side plate 1,2 that provides is basic identical; Both correspond to each other be provided with and between the two with signal among the figure but quantity is not limited to first, second, third rivet clasp axle, 14,15,16 riveteds of quantity shown in the figure connects; Wherein, The first rivet clasp axle 14 has a pair of, lays respectively at the both sides (only showing wherein one first rivet clasp axle 14 among the figure) of the second rivet clasp axle 15.On first side plate 1, offer first, second shifting chute 13a, 13b; It is corresponding up and down that first, second shifting chute 13a, 13b keep each other; Promptly the second shifting chute 13b is corresponding to the below of the first shifting chute 13a, on first side plate and a side of inclined to one side first side plate 1 also be formed with one protrude in the plane of first side plate 1 first restriction protrusion 12; On second side plate 2, offer the 3rd, the 4th shifting chute 23a, 23b; Three, the 4th shifting chute 23a, 23b keep corresponding up and down each other; Promptly the 4th shifting chute 23b is corresponding to the below of the 3rd shifting chute 23a, on second side plate 2 and a side of inclined to one side second side plate 2 also be formed with one protrude in the plane of second side plate 2 second restriction protrusion 22.Aforesaid the 3rd shifting chute 23a is corresponding with the first shifting chute 13a; And aforesaid the 4th shifting chute 23b is corresponding with the second shifting chute 13b; Because the projected direction of aforesaid first restriction protrusion 12 is towards second side plate 2; And the projected direction of aforesaid second restriction protrusion 22 is towards first side plate 1, so first, second restriction protrusion the 12, the 22nd, corresponds to each other.
As key points in design of the present invention; On the top of first side plate 1 and an inclined to one side side offer first stopper slot 11 that constitutes by first, second groove section 111,112 and first flex point 113 (also can claim breakover point) of arc; Therewith adaptably; On second side plate 2, offer same second stopper slot 21 that is made up of the 3rd, the 4th groove section 211,212 and second flex point 213 (also can claim breakover point) of arc, the position of this second stopper slot 21 on second side plate 2 is corresponding with first stopper slot 11.
Please continue to see Fig. 1; Provided the manual overvide 7 of the operating mechanism of electric switch; This manual overvide 7 is made up of moving lever 71 and stabiliser bar 72; Both sides in the short transverse of moving lever 71 promptly respectively are extended with a pair of mobile projection 712 towards a side of first, second side plate 1,2 respectively; Wherein, match with aforesaid first, second shifting chute 13a, 13b, promptly be inserted in first, second shifting chute 13a, the 13b towards a pair of mobile projection 712 of a side of first side plate 1; And match with aforesaid the 3rd, the 4th shifting chute 23a, 23b towards a pair of mobile projection 712 of a side of second side plate 2, promptly be placed among the 3rd, the 4th shifting chute 23a, the 23b.Offer on the top of the short transverse of moving lever 71 one supply described stabiliser bar 72 to probe into stabiliser bar configured slot 713; And the bottom offers a pin groove 714; The top of stabiliser bar configured slot 713 has a guide vane end stop platform 7131; Offer one second back-moving spring location hole 715 in the bottom of moving lever 71; And be extended with a cantilever 711 in a side of moving lever 71 and corresponding to the side on the upper side at the notch position of a side of aforesaid stabiliser bar configured slot 713, on the corresponding wall body of this cantilever 711, respectively be extended with a cantilever spindle nose 7111.Stabiliser bar 72 comprises first, second body of rod 721,722, back-moving spring 723 and returning spring 724; Offer a circle groove at the middle part of the short transverse of first body of rod 721; Constitute neck 7211 by this circle groove, played the upper end that makes first body of rod 721 by this neck 7211 and rotate with respect to second body of rod 722, second body of rod 722 is connected with first body of rod 721; Be that both are integral productions, make first, second body of rod 721,722 with the flexible material that is preferably nylon-type.Second body of rod 722 take first body of rod, 721 pivots be arranged at first, second side plate 1, between 2; Specifically: the nearly middle part in a side of the short transverse of second body of rod 722 offers a hub setting hole 7223; Penetrate hub setting hole 7223 by the aforesaid second rivet clasp axle 15, be arranged on the second rivet clasp axle 15 thereby make second body of rod 722 take first body of rod, 721 pivots; Be equipped with an effect piece 7221 on the top of a side of the short transverse of second body of rod 722 above promptly corresponding to hub setting hole 7223, the acting surface 72211 of this effect piece 7221 is corresponding with the following locking-bar that also will specify 3; Offer one first back-moving spring location hole 7222 in the bottom of a side of the short transverse of second body of rod 722 below promptly corresponding to hub setting hole 7223.One end of above mentioned back-moving spring 723 i.e. upper end is fixed on the aforesaid first back-moving spring location hole 7222, and the other end promptly descends end hook to put in the aforesaid second back-moving spring location hole 715.First body of rod 721 has fixedly bead 7214 of a returning spring towards the top of a side of second body of rod 722; And fixedly have a guide vane end stop 7212 in the top of bead 7214 corresponding to returning spring; This guide vane end stop 7212 contacts with aforesaid guide vane end stop platform 7131; Its effect is: the operating mechanism energy storage of electric switch of the present invention in or when claiming to be in the buckle position, guide vane end stop platform 7131 is limited 71 motions of constrained motion bar.One end of aforesaid returning spring 724 i.e. upper end is fixed on and extends in the returning spring on first body of rod, 721 tops fixedly on the bead 7214, the other end be the lower end be fixed on extend in first body of rod, 721 bottoms and with returning spring fixedly on the bead 7214 corresponding returning spring hanging feets 7213.
Ask for an interview Fig. 2; Position placed in the middle in the upper end of locking-bar 3 has an operation block 32, and the surface of a side of this operation block 32 constitutes first working face 321, and the surface of opposite side constitutes second working face 322; First working face 321 is corresponding with the magnetictrip 91 of aforesaid magnetic flux mapping device 9; Hit first working face 321 by magnetictrip 91, make operation block 32 motions, and then hit the acting surface 72211 of aforesaid effect piece 7221 by second working face 322.On the locking-bar 3 and be positioned at operation block 32 below corresponding both sides respectively be extended with a snap close and activate spindle nose 33, snap close activates spindle nose 33 and following the last connecting rod 4 that also will specify, and a pair of to go up connecting rod piece 41 corresponding, by a pair of upward connecting rod piece 41 promotions.On the wall body of the corresponding both sides of the lower end of locking-bar 3, respectively be extended with a snap close spindle nose 34, and offer one first pivot hole 31 on the locking-bar 3.
Ask for an interview Fig. 3; Provided the structure of last connecting rod 4; Should go up connecting rod 4 is made up of a pair of opposite each other and last connecting rod piece 41 that shape is identical; The a pair of connecting rod piece 41 of going up is gone up 411 riveted joints of connecting rod piece connecting axle by one and is connected, and it is corresponding with aforesaid first pivot hole 31 to offer one second pivot hole, 417, the second pivot holes 417 on each on the connecting rod piece 41; One first rivet clasp axle 14 in a pair of first rivet clasp axle 14 shown in Fig. 1 passes first, second pivot hole 31,417, thus make locking-bar 3 and last connecting rod 4 with the coaxial manner pivot be arranged at first, second side plate 1, between 2.An end of connecting rod piece 41 is that upper end shown in Figure 3 constitutes a bird caput 412 on each; The back of bird caput 412 is formed with arc groove 4121; Arc groove 4121 is corresponding with aforesaid locking board actuating spindle nose 33; A side at the middle part of connecting rod piece 41 offers a cantilever axial trough 413 on each; Cantilever axial trough 413 matches with described cantilever spindle nose 7111, and promptly aforesaid cantilever spindle nose 7111 probes in the cantilever axial trough 413, hangs rotationally on (being placed in) cantilever spindle nose 7111 thereby make connecting rod 4 take locking-bar 3.The other end of connecting rod piece 41 is that lower end shown in Figure 3 is extended with a short-leg 414 and a long leg 415 on each, at long and short leg 415, be formed with a scrotiform nest 416 between 414.
Ask for an interview Fig. 4; Lower link 5 is made up of a pair of opposite each other and lower link sheet 51 that shape is identical; A pair of lower link sheet 51 is riveted connection by three first, second, third riveted joint axle 511a, 511b, 511c that distribute with leg-of-mutton position relation; Because the shape of each lower link sheet 51 is Y-shaped, therefore possesses promptly first, second pitman arm 512,513 is arranged, wherein on the top of each lower link sheet 51; Be formed with a hamulus 5121 on the top of first connecting rod arm 512, hamulus 5121 matches with aforesaid snap close spindle nose 34.When the operating mechanism of electric switch of the present invention is in the snap close state, then hamulus 5121 is interlocked with snap close spindle nose 34, and promptly hamulus 5121 is fastened on the snap close spindle nose 34.Promptly extended protruding 5131 at the middle part of a side of second connecting rod arm 513 towards the middle part of a side of first connecting rod arm 512; Convexity 5131 is corresponding with first restriction protrusion 12 and second projection 22 on second side plate 2 on aforesaid first side plate 1; In the dropout process; Protruding 5131 contacts with aforesaid first, second restriction protrusion 12,22, make lower link 5 spacing, move to stop lower link 5 with not receiving restriction.Offer the 3rd pivot hole 514 in the lower end of each lower link sheet 51; By first bearing pin 17 on first side plate 1 stretch on one of them the lower link sheet 51 in a pair of lower link sheet 51 promptly in a side the 3rd pivot hole 514 of first side plate 1; Stretch into another lower link sheet 51 in a pair of lower link sheet 51 promptly in the 3rd pivot hole 514 of a side of second side plate 2 by second bearing pin 24 on second side plate 2, thus make a pair of lower link sheet 51 pivots be arranged at first, second side plate 1, between 2.
Please continue to see Fig. 1 and combine Fig. 2 to Fig. 4; Be extended with a pivotal block 81 on one pin 8; Offer one the 4th pivot hole 811 on the pivotal block 81; Aforesaid first bearing pin 17 is inserted in the 4th pivot hole 811, thus make pin 8 pivots be arranged at first, second side plate 1, between 2, and corresponding to the below of lower link 5.Wherein, The front end 82 of pin 8 extend in the pin groove 714 of the aforesaid below that is opened in moving lever 71; Can rotate (swing) with the motion of moving lever 71; The rear end 83 of pin 8 is corresponding with the contact mechanism 10 of electric switch (Fig. 5 and Fig. 6 show), under the lock state of deducting points again, keeps the dynamic and static contact 102,103 of contact mechanism 10 to be in gate-dividing state by it.
Ask for an interview Fig. 5 and Fig. 6; The applicant describes operation principle of the present invention, at first describes dropout separating brake process, when electric switch is in normal operating conditions; Then operating mechanism is in energy storage and detains state again; The hamulus 5121 at first connecting rod arm 512 tops of a pair of lower link sheet 51 of lower link 5 is pinned by the snap close spindle nose on the locking-bar 3 34, and promptly hamulus 5121 is hooked on the snap close spindle nose 34, and an end of the sliding axle 613 of main spring retainer 61 is positioned at the second groove section 112 of first stopper slot 11; The other end of sliding axle 613 is positioned at the 4th groove section 212 (because the second, the 4th groove section 112,212 is corresponding) of second stopper slot 21 simultaneously; At the second, the 4th groove section 112,212 places, owing to sliding axle 613 and first, second stopper slot 1, have frictional force between 2, so sliding axle 613 can not move along the prolonging direction of main spring 62.Because to be lower end (Fig. 1 shows) hook of back-moving spring 723 solid for an end of the back-moving spring 723 of the stabiliser bar 72 of manual overvide 7 on the second back-moving spring location hole 715 of the bottom of moving lever 71; Be that back-moving spring 723 acts on moving lever 71; And the other end of back-moving spring 723 promptly is fixed on the first back-moving spring hole 7222 on second body of rod 722 of stabiliser bar 72 upper end (Fig. 1 shows); Be that back-moving spring 723 acts on stabiliser bar 72, thereby apply a power that makes progress by 723 pairs of moving levers 72 of back-moving spring.Again because the i.e. upper end returning spring fixedly on the bead 7214 that is fixed on first body of rod 721 of an end of returning spring 724; The lower end is fixed on the returning spring hanging feet 7213 on first body of rod 721; Thereby apply a downward active force, thereby make moving lever 71 remain on settling position by 724 pairs of moving levers 71 of returning spring.When occurring in the circuit such as the big electric current that causes by overload or short circuit; First working face 321 of the operation block 32 of locking-bar 3 is promptly hit in magnetictrip 91 promotions of the magnetic flux mapping device 9 of electric switch; Make previous hook place the hamulus 5121 at first connecting rod arm 512 tops of the lower link sheet 51 on the snap close spindle nose 34 to break away from snap close spindle nose 34, make lower link 5 and locking-bar 3 releases.This moment, lower link 5 clockwise rotated around first, second bearing pin 17,24 under the effect of spring assembly 6, and the baffle plate 104 that promotes in the contact mechanism 10 contacts with contact bearing 101, and the dynamic and static contact 102,103 of contact mechanism 10 is separated.Because the sliding axle 613 of the main spring retainer 61 of spring assembly 6 is spacing and can not be to the prolonging direction motion of main spring 62 by first, second stopper slot 11,21; Thereby the energy of main spring 62 releases all converts the kinetic energy of lower link 5 into; Lower link 5 is opened dynamic and static contact 102,103 fast, improved breaking capacity.When lower link 5 arrives maximum open position, the convexity 5131 on the second connecting rod arm 513 of lower link sheet 51 just simultaneously with first side plate 1 on first restriction protrusion 12 contact with second restriction protrusion 22 on second side plate 2 and spacing.When the big electric current of electric switch disjunction; Moving contact 102 scolded reach maximum position after; Under the effect of touch spring 105, make moving contact 102 to the motion of fixed contact 103 closing directions, drive contact bearing 101 and baffle plate 104 contact-impacts; Under the impact force action of collision; Promote lower links 5 by baffle plate 104 and rotate counterclockwise around first, second bearing pin 17,24, because the sliding axle 613 of the main spring retainer 61 of spring assembly 6 fixedly is that the upper end maintenance of spring assembly spring 6 is motionless by first, second stopper slot 11,21 spacing maintenance, the expansion link 612 of the main spring retainer 61 of spring assembly 6 is rotating counterclockwise and get in the expansion link hole 6111 of carriage release lever 611 with lower link 5 then; Make the bottom compression of spring assembly 6; The spring force of spring assembly 6 constantly increases, thereby the moment of opening that spring assembly 6 is acted on the lower link 5 constantly increases, and helps to reduce promptly to avoid contact to fall after rise.Locking-bar 3 is under the impetus of the magnetictrip 91 of the magnetic flux mapping device 9 of electric switch; Continuation is rotated around the first rivet clasp axle 14; Until contacting with the effect piece 7221 of second body of rod 722 of stabiliser bar 72, promptly second working face 322 of the operation block 32 of locking-bar 3 contact with the acting surface 72211 of effect piece 7221, and second body of rod 722 that promotes stabiliser bar 72 is around 15 rotations of the second rivet clasp axle; Guide vane end stop 7212 on first body of rod 721 is thrown off with the guide vane end stop platform 7131 on the moving lever 71; The control that guide vane end stop 7212 is removed moving lever 71, under the effect of back-moving spring 723, moving lever 71 moves upward.Specifically: a pair of mobile projection 712 of each of the both sides of moving lever 71 is upwards slided along first, second shifting chute 13a on first side plate, 13b and the 3rd, the 4th shifting chute 23a on second side plate 2,23b; When moving lever 71 moves upward; Connecting rod 4 moves upward in the drive; Because last connecting rod 4 a pair of gone up on the cantilever spindle nose 7111 on connecting rod piece 41 is placed in moving lever 71 through cantilever axial trough 413 the cantilever 711, the short-leg 414 on the last connecting rod piece 41 of last connecting rod 4 contacts with sliding axle 613.Operating mechanism is in the dropout gate-dividing state.
Continue to see Fig. 5 and Fig. 6; The applicant describes and detains process more below, when the operating mechanism of electric switch is in the dropout gate-dividing state, for cycling; Lower link 5 and locking-bar 3 are pinned once more, keep dynamic and static contact 102,103 to be in simultaneously and break off the isolated location.Detailed process is following: the knob (not illustrating in the drawings because of belonging to known technology) that the top of rotation and moving lever 71 connects; Moving lever 71 is moved upward; Connecting rod 4 rotates around the first rivet clasp axle 14 on when moving lever 71 moves upward, driving; In last connecting rod 4 rotation processes; By the short-leg of last connecting rod piece 41 414 promote sliding axles 613 overcome its (sliding axle 613) and first, second stopper slot 11, between 21 frictional force and in first, second stopper slot 11,21, move; Promptly from the second, the 4th groove section 112,212 positions to first, the motion of three-flute section 111,211 positions, after sliding axle 613 moved (slip) first, second flex point 113,213, sliding axle 613 just under the effect of spring assembly 6 to first, 111,211 motions of three-flute section.Being rotated further in the process of last connecting rod 4; A pair of go up on the connecting rod piece 41 long leg 415 just with the last end in contact (seeing situation shown in Figure 1) of lower link 5; Driving the rightabout that lower link 5 opens around its axial dynamic and static contact 102,103 rotates; The working face of bird caput 412 parts on the last connecting rod piece 41; The back that is bird caput 412 also is arc groove 4121 above-mentioned promotes locking-bar 3 in last connecting rod rotating process a snap close actuating spindle nose 33; Make first working face 321 of the operation block 32 of locking-bar 3 promote the magnetictrip 91 of the magnetic flux mapping device 9 of electric switches, magnetic flux mapping device 9 (also can claim magnetic flow convertor) is resetted, simultaneously; When its axle rotates, make the snap close spindle nose 34 of locking-bar 3 and hamulus 5121 snap closes (fastening) at first connecting rod arm 512 tops of a pair of lower link sheet 51 of lower link 5 at locking-bar 3.Because the front end 82 of pin 8 is inserted in the pin groove 714 of moving lever 71; Therefore when moving lever 71 moved upward, the front end 82 of pin 8 also moved upward, according to lever principle; The rear end 83 of pin 8 just moves downward or claims to lower swing; Act on baffle plate 104, dynamic and static contact 102,103 is in breaks off the isolated location, operating mechanism just is in the lock state of deducting points again.
Still see Fig. 5 and Fig. 6; The applicant describes the energy storage making process; When the operating mechanism of electric switch is in the above-described lock state of deducting points again, when big electric current arrives, makes the operating mechanism separating brake of normally threading off once more for making next time, thereby need make spring assembly 6 energy storage.Detailed process is following: the knob that rotation matches with the top of the moving lever 71 of manual overvide 7; Moving lever 71 is moved downward; Connecting rod 4 motions in the drive; Promptly rotate around the first rivet clasp axle 14, in last connecting rod 4 rotating process, the long leg 415 of last connecting rod piece 41 just contacts promotion sliding axle 613 compression direction along spring assembly 6 in first, second stopper slot 11,21 and moves with sliding axle 613; That is, make sliding axle 613 from first, three-flute section 111,211 positions arrive the second, the 4th groove section 112,212 and limited behind first, second flex point 113,213 positions.Second body of rod 722 of stabiliser bar 72 rotates around its axle under the effect of back-moving spring 723 simultaneously, and the guide vane end stop 7212 of first body of rod 721 is contacted with aforesaid guide vane end stop platform 7131, and retardation motion bar 71 moves upward under the effect of returning spring 724.Because the front end 82 of pin 8 is inserted in the pin groove 714 of moving lever 71; Thereby the front end 82 of pin 8 is moved downward with moving lever; Just as lever principle, the rear end 83 of pin 8 moves upward (upwarping), because of the rear end 83 of pin 8 does not act on baffle plate 104; Therefore under the restoring force effect of touch spring 105, make dynamic and static contact 102,103 closures.Operating mechanism is in the energy storage "on" position.
Still see Fig. 5 and Fig. 6, the applicant describes the manual brake separating process, is the inverse process or the title inverse process of making process on the separating brake process nature.Through operating the knob that matches with the top of moving lever 71; Moving lever 71 is moved upward; At this moment, because the hamulus 5121 at first connecting rod arm 512 tops of the lower link sheet 51 of lower link 5 is sealed with the snap close spindle nose 34 on the locking-bar 3, so lower link 5 does not move; Stabiliser bar 72 overcomes the active force of back-moving spring 723 under the effect of the operating physical force of knob; Make the top of first body of rod 721 of stabiliser bar 72 produce one around neck 7211 and scratch, make guide vane end stop platform 7131 releases on guide vane end stop 7212 and the moving lever 71 on first body of rod 721, moving lever 71 moves upward.Connecting rod 4 rotates around axle (the wherein axle in a pair of first rivet clasp axle 14) on when moving lever 71 moves upward, driving; In last connecting rod 4 rotation processes; The sliding axle 613 that a pair of short-leg of going up on the connecting rod piece 41 414 of last connecting rod 4 promotes main spring retainers 61 move in first, second stopper slot 11,21, make sliding axle 613 from the second, the 4th groove section 112,212 positions through 113,213 arrival first of first, second flex point, three-flute section 111,211 positions.Because the front end 82 of pin 8 is stretched the pin groove 714 that places moving lever 71; Therefore the front end 82 that when moving lever 71 moves upward, drives pin 8 moves upward; The rear end 83 of pin 8 then moves downward; Compressing baffle plate 104, and under the prerequisite that overcomes touch spring 105 elastic force, make dynamic and static contact 102,103 be in the disconnection isolated location.Operating mechanism is in the lock state of deducting points again.
Claims (8)
1. the operating mechanism of an electric switch comprises: first, second side plate (1,2), this first, second side plate (1,2) face each other and are provided with and are connected to each other together; One is positioned at the manual overvide (7) between first, second side plate (1,2); One trip gear by locking-bar (3), upper and lower connecting rod (4,5) and spring assembly (6) formation; Locking-bar (3) is equipped on the connecting rod (4); And locking-bar (3) and last connecting rod (4) are coaxial to be arranged on first, second side plate (1,2); Wherein, locking-bar (3) is corresponding with said manual overvide (7), is connected with manual overvide (7) and go up connecting rod (4); Locking-bar (3) and last connecting rod (4) match with the top of lower link (5) separately; And the bottom pivot of lower link (5) is arranged on first, second side plate (1,2), it is characterized in that: described first side plate (1) is gone up and is offered one first stopper slot (11) at the position corresponding to the upper end of described spring assembly (6), and offers second stopper slot (21) that a position is corresponding with said first stopper slot (11) and shape is identical with first stopper slot (11) on described second side plate (2) equally; Said spring assembly (6) comprises a main spring retainer (61) and a main spring (62); Main spring (62) is set on this main spring retainer (61), and wherein, the upper support of main spring retainer (61) is on described on the connecting rod (4); And be slidingly matched with described first, second stopper slot (11,21), the lower support of main spring retainer (61) is on described lower link (5).
2. the operating mechanism of electric switch according to claim 1; It is characterized in that described first stopper slot (11) is made up of the first groove section (111) of arc, the second groove section (112) and first flex point (113) of arc; Wherein, first flex point (113) is positioned between first, second groove section (111,112), and described second stopper slot (21) is made up of the three-flute section (211) of arc, the 4th groove section (212) and second flex point (213) of arc equally; Wherein, Second flex point (213) is positioned between the 3rd, the 4th groove section (211,212), and described main spring retainer (61) comprises carriage release lever (611), expansion link (612) and sliding axle (613), and sliding axle (613) is located at the end, upper end of carriage release lever (611); This sliding axle (613) is bearing in described going up on the connecting rod (4); And an end of sliding axle (613) is inserted in said first stopper slot (11), and the other end is then stretched and placed said second stopper slot (21), the central authorities of the lower end of carriage release lever (611) to have an expansion link hole (6111); One end of expansion link (612) is inserted in the expansion link hole (6111), and the other end is bearing on the described lower link (5).
3. the operating mechanism of electric switch according to claim 2; It is characterized in that described go up connecting rod (4) by a pair of shape opposite each other identical and last connecting rod piece that be connected to each other (41) formation; The lower end of connecting rod piece on each (41) be extended with one with the corresponding long leg (415) that is used to make sliding axle (613) to move to said the second, the 4th groove section (112,212) of said sliding axle (613) from said first, three-flute section (111,211), the top corresponding to said long leg (415) of connecting rod piece on each (41) be extended with same and a said sliding axle (613) corresponding be used for sliding axle (613) from said the second, the 4th groove section (112,212) towards first, the short-leg (414) that moves of three-flute section (111,211).
4. the operating mechanism of electric switch according to claim 1; It is characterized in that identical and a pair of lower link sheet (51) that be connected to each other constitutes described lower link (5) by shape opposite each other; The top of each lower link sheet (51) constitutes first connecting rod arm (512) and second connecting rod arm (513); First connecting rod arm (512) matches with described locking-bar (3); Second connecting rod arm (513) matches with the described connecting rod (4) of going up; Has a hamulus (5121) at the top of first connecting rod arm (512); Hamulus (5121) matches with described locking-bar (3); And at the middle part of second connecting rod arm (513) and in the face of a side of first connecting rod arm (512) has a convexity (5131), described first side plate (1) is provided with one and protrudes in first restriction protrusion (12) on plane of a side of first side plate (1), and be provided with equally on described second side plate (2) one protrude in second side plate (2) a side the plane and position and corresponding second restriction protrusion of said first restriction protrusion (12) (22); Convexity (5131) on one of them second connecting rod arm (513) in a pair of second connecting rod arm (513) is corresponding with described first restriction protrusion (12), and the convexity (5131) on another second connecting rod arm (513) in a pair of second connecting rod arm (513) is corresponding with described second restriction protrusion (22).
5. the operating mechanism of electric switch according to claim 1; It is characterized in that described manual overvide (7) is made up of moving lever (71) and stabiliser bar (72); Stabiliser bar (72) pivot is arranged between first, second side plate (1,2), and matches with moving lever (71), and moving lever (71) is then sliding up or down to be assigned on first, second side plate (1,2); Described locking-bar (3) is corresponding with said stabiliser bar (72), and the described connecting rod (4) of going up is connected with moving lever (71).
6. the operating mechanism of electric switch according to claim 5; It is characterized in that offering a stabiliser bar configured slot (713) in the upper end of described moving lever (71); Offer one second back-moving spring location hole (715) in the bottom of moving lever (71); Respectively has a guide vane end stop platform (7131) on the cell wall of the corresponding both sides on the top of described stabiliser bar configured slot (713); A pair of guide vane end stop platform (7131) corresponds to each other; Described stabiliser bar (72) comprises first body of rod (721), second body of rod (722), back-moving spring (723) and returning spring (724); First, second body of rod (721,722) is connected to each other; The nearly middle part of the short transverse of described first body of rod (721) constitutes one and is used to make the neck (7211) of the upper end of first body of rod (721) with respect to second body of rod (722) rotation, and second body of rod (722) is taken first body of rod (721) pivot and is arranged between described first, second side plate (1,2), and second body of rod (722) is arranged in the described stabiliser bar configured slot (713) accordingly; One side of the lower end of second body of rod (722) offers one first back-moving spring location hole (7222); One end of described back-moving spring (723) is fixed on the first back-moving spring location hole (7222), and the other end is fixed on the described second back-moving spring location hole (715), the upper end of first body of rod (721) and towards a side of said second body of rod (722) be extended with one be used to limit said moving lever (71) motion confinement block (7212); Confinement block (7212) matches with described guide vane end stop platform (7131); The lower end of first body of rod (721) is extended with a returning spring hanging feet (7213), and an end of described returning spring (724) is hung on the spring of upper end of described first body of rod (721) fixedly on the bead (7214), and the other end then is hung on the described returning spring hanging feet (7213); Side in the upper end of second body of rod (722) has an effect piece (7221); This effect piece (7221) is corresponding with described locking-bar (3) and by locking-bar (3) promotion, the middle part of a side of the short transverse of said moving lever (71) is extended with a cantilever (711), and the described connecting rod (4) of going up is hung on the described cantilever (711).
7. the operating mechanism of electric switch according to claim 5; It is characterized in that offering on described first side plate (1) and be used to supply sliding first, second shifting chute (13a, 13b) of joining of said moving lever (71); First, second shifting chute (13a, 13b) keeps upper and lower correspondence each other; Offer on described second side plate (2) and be used to supply sliding the 3rd, the 4th shifting chute (23a, 23b) of joining of described moving lever (71) equally; Three, the 4th shifting chute (23a, 23b) keeps upper and lower correspondence each other; And the 3rd shifting chute (23a) is corresponding with first shifting chute (13a), and the 4th shifting chute (23b) is corresponding with second shifting chute (13b), and the corresponding both sides of the short transverse of described moving lever (71) have respectively extended a pair of moving lever and moved projection (712); Wherein a pair of moving lever of a side moves projection (712) and is placed in described first, second shifting chute (13a, 13b), is placed in described the 3rd, the 4th shifting chute (23a, 23b) and a pair of moving lever of opposite side moves projection (712).
8. the operating mechanism of electric switch according to claim 4; The corresponding both sides that it is characterized in that the lower end of said locking-bar (3) respectively are extended with a snap close spindle nose (34); The top of said first connecting rod arm (512) has a hamulus (5121), and said snap close spindle nose (34) matches with hamulus (5121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101554957A CN101826425B (en) | 2010-04-19 | 2010-04-19 | Operating mechanism of electric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101554957A CN101826425B (en) | 2010-04-19 | 2010-04-19 | Operating mechanism of electric switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101826425A CN101826425A (en) | 2010-09-08 |
| CN101826425B true CN101826425B (en) | 2012-05-23 |
Family
ID=42690277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101554957A Active CN101826425B (en) | 2010-04-19 | 2010-04-19 | Operating mechanism of electric switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101826425B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811205B (en) * | 2014-02-25 | 2016-01-06 | 无锡市凯旋电机有限公司 | Bistable bidirectional self-locking device |
| CN105843323B (en) * | 2016-06-03 | 2017-05-31 | 张卫 | Positioning formula knob |
| CN109545595A (en) * | 2019-01-10 | 2019-03-29 | 常熟开关制造有限公司(原常熟开关厂） | A kind of locker and dual-power transfer switch of dual-power transfer switch |
| CN115094485B (en) * | 2022-06-24 | 2023-08-29 | 重庆国丰实业有限公司 | Automatic unlocking and locking mechanism of transfer device for electrolytic cell anode |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031444A (en) * | 1987-07-13 | 1989-03-01 | 西门子公司 | Line protection switch |
| CN101241806A (en) * | 2008-03-13 | 2008-08-13 | 江苏大全凯帆电器有限公司 | Energy-storage machine for spring operation machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6559743B2 (en) * | 2000-03-17 | 2003-05-06 | General Electric Company | Stored energy system for breaker operating mechanism |
-
2010
- 2010-04-19 CN CN2010101554957A patent/CN101826425B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031444A (en) * | 1987-07-13 | 1989-03-01 | 西门子公司 | Line protection switch |
| CN101241806A (en) * | 2008-03-13 | 2008-08-13 | 江苏大全凯帆电器有限公司 | Energy-storage machine for spring operation machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101826425A (en) | 2010-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101826425B (en) | Operating mechanism of electric switch | |
| AU2006320816B2 (en) | Fault interrupting and reclosing device | |
| CN102054631B (en) | Anti-bouncer for circuit breaker | |
| CA1075746A (en) | Static trip molded case circuit breaker including trip interlock | |
| CN101441945B (en) | Self-locking apparatus for automatic transfer switch | |
| CN201898099U (en) | Operating mechanism of molded case circuit breaker | |
| CN101364506A (en) | Molded case circuit breaker with contact on mechanism | |
| US9208962B2 (en) | Circuit breaker including an anti-rebound system, anti-rebound system for a circuit breaker and method | |
| CN203644700U (en) | Operating mechanism of electric switch | |
| CN201985050U (en) | Bounce-proof device of circuit breaker | |
| CN101640146A (en) | Tripping device of circuit breaker | |
| CN102034652B (en) | Operating mechanism for molded case circuit breaker | |
| CN205595266U (en) | Load switch - switch -fuse combination electrical equipment trip gear | |
| CN103928272A (en) | Circuit breaker structure achieving rapid releasing through electric repulsion force and circuit breaker | |
| CN104637744B (en) | Quick tripping mechanism for short-circuit of miniature circuit breaker | |
| CN104733253B (en) | Switch disconnector with three-color display function | |
| CN103021749B (en) | Circuit breaker capable of quickly releasing | |
| CN201007977Y (en) | Operating mechanism of circuit-breaking switch | |
| CN202616154U (en) | Manual motor starter | |
| CN203552970U (en) | Linked limiting device used for auxiliary switch | |
| CN203839310U (en) | Breaker | |
| CN201681775U (en) | Electric switch device | |
| CN100483598C (en) | Rapid tripping apparatus for current limiting of breaker | |
| CN204289295U (en) | A kind of operating mechanism of low-voltage circuit breaker | |
| CN102136378B (en) | Operating mechanism of simple metal enclosed switch equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |