CN201210469Y - Assistant tripping mechanism for circuit breaker - Google Patents
Assistant tripping mechanism for circuit breaker Download PDFInfo
- Publication number
- CN201210469Y CN201210469Y CNU200820118766XU CN200820118766U CN201210469Y CN 201210469 Y CN201210469 Y CN 201210469Y CN U200820118766X U CNU200820118766X U CN U200820118766XU CN 200820118766 U CN200820118766 U CN 200820118766U CN 201210469 Y CN201210469 Y CN 201210469Y
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- China
- Prior art keywords
- snap close
- disengaging mechanism
- drive rod
- breaker
- auxiliary
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Abstract
A breaker assistant disengaging mechanism comprises an electromagnetic relay, a four-connecting rod mechanism, a buckle, a energy-storing spring, a turning spring used for the handle reposition and a locking/unlocking structure. The locking structure is formed by the cylinder surface on the buckle and a plane on a drive rod to squeeze the contact form; the buckle is positioned by the locking structure, the shaft hole and the stop structure as three restriction; the restricting force is provided by the element installed on the drive rod, which not only significantly enhances the stability and reliability of the assistant disengaging mechanism, but also significantly reduces the processing assembling precision, manufacturing difficulty and the production cost.
Description
Technical field
The utility model relates to a kind of tripping mechanism of low-voltage electrical apparatus, particularly a kind of auxiliary disengaging mechanism for breaker with residual current protecting circuit breaker or other miniature circuit breaker.
Background technology
Auxiliary disengaging mechanism is the actuating mechanism of circuit breaker auxiliary trip unit.Auxiliary trip unit can be disposed at multipole circuit breaker selectively with the form of an external independent electrical equipment, also can be used as the built-in auxiliary trip unit of multipole circuit breaker.The trip(ping) bar of the tripping mechanism of auxiliary trip unit and the tripping mechanism of multipole circuit breaker is of coupled connections, and the tripping operation action of auxiliary trip unit is passed to the trip(ping) bar of multipole circuit breaker, triggers the multipole circuit breaker tripping operation.Purpose by the tripping operation of auxiliary trip unit control multipole circuit breaker is: by disposing a plurality of auxiliary trip units selectively, make multipole circuit breaker realize the various forms of multichannel tripping operation controls that the user is required, as undervoltage tripping control, shunt tripping control, trip remotely control etc., tripping mechanism by auxiliary trip unit amplifies tripping force, makes the tripping operation of multipole circuit breaker sensitiveer, more reliable.
The auxiliary disengaging mechanism of prior art such as patent of invention ZL89101031 disclosed " auxiliary trip unit of circuit-breaker ", the basic building block of the tripping mechanism of this auxiliary trip unit, tripping lever by tripping relay control with an actuating coil and tripping operation cap, trip signal is passed to the machine driving bar of the switching mechanism of breaker unit by the cap of relay, to cooperate, make circuit breaker trip with above-mentioned relay coil; Be installed in the hook between a handle and the plate, this plate pivotally is installed on first stationary spindle between carrying position and the unloading position; An energy-stored spring, when tripping lever separated hook, it shifted described plate onto unloading position; The automatic involution lever in the centre of relay, it is because the action of plate moves to unloading position, and this lever is spliced on second stationary spindle of shell; Described plate is supporting the 3rd hinge axle of the short column and a tripping lever of mechanical trip connecting rod; Tripping lever comprises that a first arm that matches with hook makes it second arm that separates with the tripping operation cap of relay with one by being installed in the involution lever that freely rotates on second axle; Hook comprises a hook lever, and it is limited installation rotationally on the 4th axle of plate, and by a drive link and handle mechanical couplings.
The operating mechanism of the tripping mechanism of above-mentioned prior art has adopted one by disconnecting/chain mechanical chain mechanism that hook and tripping lever constitute, under loaded state, promptly hook is under the chain state with tripping lever, and tripping lever only depends on one the 3rd hinge axle and two supporting point constraints of hook location.In addition, it is chain that described hook only depends on the hook of two bill portions on it to realize, the hook contact area of bill portion is minimum.Because the auxiliary trip unit of the prior art adopts the said structure design, the performance deficiency that has following four aspects in operation: at first be stability, poor reliability, under the effect of operation external force or other external force and/or when being given a shock, easily cause chain inefficacy in load bearing process or under the loaded state, and make the malfunctioning or mistrip of operation; Next is that sliding friction between hook is easy to make bill wearing and tearing and causes that hook lost efficacy, and had a strong impact on the useful life of auxiliary trip unit; The 3rd is that hook require to adopt the high-strength abrasion-proof material to make, not only mechanism's assembly precision require high, manufacturing cost height, and the processing of parts, installation, debug difficulties; The 4th be since tripping lever when the 3rd hinge axle is rotated, the contact position of hook is not that work waits the radius motion, thereby make hook two bill portions to make fluctuation mutually bigger, the cap that easily causes tripping can not in time and/or can't drive tripping lever and throw off hook, promptly can't realize release.
The utility model content
The purpose of this utility model is to overcome the defective of above-mentioned prior art, and a kind of auxiliary disengaging mechanism of novel breaker is provided, and project organization is more reasonable and be convenient to manufacture stability and reliability height, and low cost of manufacture.
To achieve these goals, auxiliary disengaging mechanism for breaker of the present utility model has adopted following technical scheme.
A kind of auxiliary disengaging mechanism for breaker comprises in its insulation crust 10; Electromagnetic relay 19, one by operating grip 11, U-shaped bar 12, drive rod 15 and drive link 14 constitute four connect structure mechanisms, snap close 16, energy-stored spring 13, one be used for main spring and a push rod 42 that makes electromagnetic relay 19 that handle 11 resets and revert to the push rod return mechanism.Have a crotch arm 39 on the drive rod 15 of described four connecting rod tripping mechanisms; Deep-slotted chip breaker 41 on the shell 10, one of the tripping operation roofbolt 29 of list or multipole circuit breaker is stretched to auxiliary disengaging mechanism by this deep-slotted chip breaker 41, and with drive rod 15 on crotch arm 39 coupling, the dropout lever coupling linkage of the other end of tripping operation roofbolt 29 and the switching mechanism of list or multipole circuit breaker.A linkage structure 45 is arranged between described drive link 14 and the snap close 16, by the face and the face extruding way of contact, can realize the locking between described drive link 14 and the snap close 16, makes auxiliary disengaging mechanism transfer loaded state to by unloaded state.When described electromagnetic relay 19 with the transmission of the trip signal that collects by the tripping operation roofbolt 29 of the crotch arm 39 on the drive rod 15 of described four connecting rod tripping mechanisms, multipole circuit breaker, can realize the release between described drive link 14 and the snap close 16, make auxiliary disengaging mechanism transfer unloaded state to, and trigger list or multipole circuit breaker dropout by loaded state.
Described linkage structure 45 is structures of the line contact form that is made of the plane 33 on the face of cylinder on the snap close 16 34 and the drive link 14.Linkage structure 45 has desirable contact sliding length between the face of cylinder 34 on the snap close 16 and the plane 33 on the drive link 14 in releasing process, can locking reliable and stable to guarantee linkage structure 45, can release thread off sensitive again.The center of circle on the face of cylinder 34 on the described snap close 16 and the center of rotation of snap close 16 are the twisted axis 26 of drive rod 15.
Described snap close 16 suffered restraining force when auxiliary disengaging mechanism is in loaded state provides by the element that is installed on the drive rod 15, and described snap close 16 suffered constraints are meant that the constraint of 37 3 of the stop configurations of twisted axis hole 26 that is subjected to linkage structure 45, snap close 16 is installed and the afterbody 38 that limits snap close 16 locatees.
Described push rod return mechanism is made of restoring lever 18 and twisted axis 23; Twisted axis 23 is fixed on the insulation crust 10, and restoring lever 18 is installed on the twisted axis 23 pivotally.Restoring lever 18 adopts thin body elasticity metal material to make, when the auxiliary tripping device is in unloaded state, protuberance 31 on the drive rod 15 orders about restoring lever 18 and moves, the active force of described protuberance 31 can make restoring lever 18 produce certain elastic deformation, the push rod 42 of electromagnetic relay 19 is revert to unloading position, simultaneously push rod 42 is stabilized in unloaded state.
Described stop configurations 37 by be arranged on the location retaining 36 on the drive rod 15, spring-hanging column 35 and the back-moving spring 17 that is arranged on the snap close 16 constitutes; One end of described back-moving spring 17 is connected with described location retaining 36, and the other end is connected with described spring-hanging column 35; When snap close 16 was not driven by the push rod 42 of electromagnetic relay 19, its afterbody 38 was tied abutting under the elastic force effect of back-moving spring 17 on the location retaining 36 all the time; When the push rod 42 of electromagnetic relay 19 clashed into the afterbody 38 of snap closes 16, the afterbody 38 of snap close 16 separated with location retaining 36, and the elastic restraint power that overcomes back-moving spring 17 is finished the release action.
Described energy-stored spring 13 is sleeved on the axle sleeve 28 of drive rod 15, and the one end is stuck on the convex shoulder 43 of drive rod 15, and the other end is stuck on the boss 44 of shell 10; Tripping operation roofbolt 29 on the described multipole circuit breaker switching mechanism is designed to and described multipole circuit breaker electromagnetic relay drive rod 40 vicinities.On described shell 10, also be provided with a locating piece 32, be used to stop the excessive rotation of drive rod 15.
Adopt the auxiliary disengaging mechanism for breaker that is different from the prior art auxiliary disengaging mechanism fully of the present utility model, eliminated the structural design defective of existing " 2 supporting constraint location " and " the hook contact area of hook is minimum ", mechanism's job stability and reliability are improved significantly, prolonged useful life greatly, and be easier to make and install, have great promotion and application and be worth.
Description of drawings
Fig. 1 is the structural representation of auxiliary disengaging mechanism for breaker embodiment of the present utility model, is in unloaded state for auxiliary disengaging mechanism shown in the figure.
Fig. 2 is the structural representation of auxiliary disengaging mechanism for breaker embodiment of the present utility model, is in loaded state for auxiliary disengaging mechanism shown in the figure.
Fig. 3 is the schematic diagram of the dropout process of auxiliary disengaging mechanism for breaker embodiment of the present utility model.
Embodiment
Below in conjunction with the auxiliary disengaging mechanism for breaker shown in the accompanying drawing 1-3, further describe explanation embodiment of the present utility model.Auxiliary disengaging mechanism for breaker of the present utility model is not limited to the description of following examples.
Referring to accompanying drawing 1-3, auxiliary disengaging mechanism for breaker of the present utility model comprises an electromagnetic relay 19 and one four connecting rod tripping mechanism.Described electromagnetic relay 19 is delivered to the trip signal that collects the tripping operation roofbolt 29 of multipole circuit breaker by the crotch arm 39 on the drive rod 15 of described four connecting rod tripping mechanisms.Deep-slotted chip breaker 41 by shell 10 of tripping operation roofbolt 29 stretches to auxiliary disengaging mechanism, and with drive rod 15 on crotch arm 39 coupling, the dropout lever (not shown) coupling linkage of the switching mechanism of other end and multipole circuit breaker.Therefore, the transmission of the tripping operation roofbolt 29 that the dropout of auxiliary disengaging mechanism of the present utility model action can be by the crotch arm 39 on the drive rod 15, multipole circuit breaker causes multipole circuit breaker to be threaded off.
As shown in Figure 1, auxiliary disengaging mechanism 5 of the present utility model comprises by shell 10 and the quadric chain that is made of handle 11, U-shaped bar 12 and drive rod 15, drive link 14.Described handle 11 and drive rod 15 link respectively on first twisted axis 21 and second twisted axis 27 of shell 10.Drive link 14 and snap close 16 link respectively on the 3rd twisted axis 25 and the 4th twisted axis hole 26 of drive rod 15.One end of back-moving spring 17 is installed on the spring-hanging column 35 of snap close 16, and the other end is installed on the location retaining 36 of drive rod 15.U-shaped bar 12 respectively with handle 11 on eccentric orfice 22, hinge hole 24 hinge joint on the drive link 14.The face of cylinder 34 of snap close 16 and the plane of drive link 14 33 form the linkage structure 45 of a lockable/release, the 4th twisted axis hole 26 on this linkage structure 45 and the snap close 16 is eccentric state, make snap close 16 37 one-tenth 3 constraint location of stop configurations when carrying, so that structure is more reasonable, the action is more reliable by linkage structure 45, twisted axis hole 26 and drive rod 15.
As shown in Figure 1, a push rod playback mechanism is made up of restoring lever 18 and twisted axis 23, is used for push rod 42 playback with electromagnetic relay 19.Described restoring lever 18 adopts a thin body elasticity metal material to make, when drive rod 15 is in unloading position, the protuberance 31 of drive rod 15 is pressed on the restoring lever 18, restoring lever 18 is installed on the twisted axis 23 and pivotally around twisted axis 23 rotations, with power be delivered to electromagnetic relay 19 push rod 42 so that its reset.Here adopt the advantage of thin body elasticity metal material manufacturing to be restoring lever 18, when drive rod 15 is in unloading position, the active force of the protuberance 31 of drive rod 15 orders about restoring lever 18 push rod 42 of electromagnetic relay 19 is revert to unloading position, this active force can make lever 18 produce certain elastic deformation, in order to remedy foozle, simultaneously, produce the elastic force that affacts push rod 42, push rod 42 can be stabilized in unloaded state.
An energy-stored spring 13 is sleeved on the axle sleeve 28 of drive rod 15, and the one end is stuck on the convex shoulder 43 of drive rod 15, and the other end is stuck on the boss 44 of shell 10.After linkage structure 45 releases of auxiliary disengaging mechanism, energy-stored spring 13 releases energy, and makes drive rod 15 move to unloading position counterclockwise.Tripping operation roofbolt 29 on the described multipole circuit breaker switching mechanism is designed to and described multipole circuit breaker electromagnetic relay drive rod 40 vicinities, its arm of force length can increase greatly like this, thereby reduced the requirement of energy-stored spring 13 being treated active force, make the tripping mechanism action more reliable.
On described first twisted axis 21, be set with one and be used for the main spring (not shown) that handle 11 resets.The energy storage under auxiliary disengaging mechanism 5 loaded states of this main spring.After auxiliary disengaging mechanism 5 is threaded off, described main spring releases energy, thereby driving handle 11 rotates by counter clockwise direction shown in Figure 2, and handle 11 is turned back to as shown in Figure 1 to unloading position, meanwhile, handle 11 is withdrawn into initial position (referring to position shown in Figure 1) before the locking by U-shaped bar 12 with drive link 14.
As Figure 1-3, the stop configurations 37 on the described drive rod 15 by be arranged on the location retaining 36 on the drive rod 15, spring-hanging column 35 and the back-moving spring 17 that is arranged on the snap close 16 constitutes.One end of described back-moving spring 17 and described location retaining 36 articulate, and the other end and spring-hanging column 35 articulate.When snap close 16 was not driven by the push rod 42 of electromagnetic relay 19, the afterbody 38 of snap close 16 abutted on the retaining 36 of location (as shown in Figure 1) being tied under the elastic force effect of back-moving spring 17 all the time.When the described afterbody 38 of push rod 42 bump of electromagnetic relay 19, snap close 16 suffered impacts overcome the elastic restraint masterpiece release action that the suffered impact in bullet position that resets overcomes back-moving spring 17, and this moment, afterbody 38 separated (as shown in Figure 3) with location retaining 36.
Specify the carrying operating process of the utility model auxiliary disengaging mechanism 5 below in conjunction with accompanying drawing 1-3.
With reference to Fig. 1-3, when auxiliary disengaging mechanism 5 and electromagnetic relay 19 all are in unloading position when (as shown in Figure 1), driving handle 11 moves to the carrying position clockwise, handle 11 drives U-shaped bar 12 and drive link 14 is moved counterclockwise around the 3rd twisted axis 25, form locking with the linkage structure 45 of snap close 16, continue driving handle 11, drive rod 15 is clockwise rotated around second twisted axis 27 after the flex point of crossing quadric chain, arrive the carrying position, energy-stored spring 13 energy storage this moment, the afterbody 38 of snap close 16 is near restoring lever 18 (as shown in Figure 2).When auxiliary disengaging mechanism 5 is in the carrying position, contact or stay very little gap between the afterbody 38 of the push rod 42 of electromagnetic relay 19 and restoring lever 18 and snap close 16, after receiving trip signal and ejecting, can reliably promote snap close 16 around 26 rotations of the 4th twisted axis hole and make linkage structure 45 releases with the push rod 42 of guaranteeing electromagnetic relay 19.
The dropout uninstall process of the utility model auxiliary disengaging mechanism 5 is described below in conjunction with Fig. 3.
After electromagnetic relay 19 is received trip signal, push rod 42 ejects by direction shown in Figure 3, promote restoring lever 18 by counterclockwise rotating around twisted axis 23, promote the afterbody 38 of snap close 16 simultaneously, make it counterclockwise around 26 rotations of the 4th twisted axis hole, and make between drive link 14 and the snap close 16 linkage structure 45 releases that form, energy-stored spring 13 releases energy, and drive drive rod 15 and handle 11 is rotated counterclockwise simultaneously, the crotch arm 39 of drive rod 15 touches the tripping operation roofbolt 29 of multipole circuit breaker switching mechanism dropout lever (not shown) and does the motion of threading off, and multipole circuit breaker is threaded off.Get back in the unloading position process at drive rod 15, the protuberance 31 of drive rod 15 promotes restoring lever 18 in the direction of the clock around twisted axis 23 rotations, and makes the push rod 42 of electromagnetic relay 19 get back to unloading position (as shown in Figure 1).Also be provided with a locating piece 32 on the shell 10 of auxiliary disengaging mechanism 5, be used to limit the excessive rotation that stops drive rod 15.The rotation of locating piece 32 restriction drive rods 15 makes drive rod 15 get back to and be stabilized on the unloading position.
Circuit breaker auxiliary tripping device of the present utility model mainly has following design feature and feature performance benefit.
1,3 stable constraints are located.When auxiliary disengaging mechanism was in loaded state, snap close 16 was subjected to the twisted axis hole 26 of linkage structure 45, installation snap close 16 and limits 37 3 constraint location of stop configurations of the afterbody 38 of snap close 16.From the mechanics principle as can be known, 3 constraint location are more reliable and more stable than 2 constraint location of prior art.For snap close 16, because it is the senser that triggers the tripping mechanism release, it any loosening unusually, the shake of the snap close 16 that causes as vibrations, all may cause the misoperation of auxiliary tripping device, therefore, control snap close 16 reliable and stable is the effective measures of guaranteeing auxiliary disengaging mechanism stability and reliability.
2, the restraining force of 3 constraint location provides by the element that is installed on the drive rod 15.They are respectively: described linkage structure 45 gives the restraining force of snap close 16 from the drive link 14 that is installed on the drive rod 15; The restraining force that described twisted axis hole 26 gives snap close 16 also is to be provided by the twisted axis hole 26 on the drive rod 15; The restraining force that described stop configurations 37 gives snap close 16 still is to be provided jointly by the back-moving spring 17 that is arranged on the location retaining 36 on the drive rod 15 and be installed on the drive rod 15.Obviously, the structure of these characteristics, not only can effectively control the loosening unusually of snap close 16, but also can eliminate following unfavorable factor: at first be that external force such as operating physical force is disturbed the instability that may cause carrying operation, unreliable, because if described restraining force is from the element that is not mounted on the identity element, then very easy under external force the direction of restraining force and size are changed, and unsteadiness, the unreliability of the caused carrying operation of this change might show as bearer operation failure or false tripping takes place in the carrying back; Next is the instability, unreliable that vibrations may cause loaded state, even causes mistrip.
3, linkage structure is the contact of squash type line.Specifically, linkage structure 45 is pushed to contact with the plane 33 on the drive link 14 by the face of cylinder on the snap close 16 34 and forms, and the contact form that is made of the face of cylinder 34 and plane 33 is that line contacts.Obviously, the linkage structure of this squash type line contact is not only stable, reliable, and the life-span is long, because its wearing and tearing can not cause chain inefficacy.Also this reason just can reduce the resistance to wear requirement to the material of the linkage structure of tripping mechanism of the present utility model, thereby can reduce manufacturing cost.
4, the center of circle on the face of cylinder 34 of linkage structure is concentric with the axle of snap close 16.The center of circle on the face of cylinder 34 on the snap close 16 of linkage structure 45 and the center of rotation of snap close 16 are the 4th twisted axis hole 26 on the drive rod 15.Obviously, the characteristics of this structure, can make the fluctuation of contact force on the face of cylinder 34 of linkage structure 45 and plane 33 very little, promptly in carrying-unloading or unloading-carrying operating process, contact force between them remains unanimity, thereby has guaranteed the stable and reliable of the carrying operation and the action of threading off.
5, can obtain desirable dropout sliding length.Here, the dropout sliding length is meant that linkage structure 45 is by the length of sliding that contacts that is latched in the releasing process between the drive link 14 and snap close 16.This length is too short, may cause the locking instability.This length is oversize, and the response speed of release is slowed down, even influences dropout sensitivity.Linkage structure 45 of the present utility model is compared with the chain hook of prior art, because its squash type line contacting structure characteristics, can make it can under desirable dropout sliding length, guarantee enough dropout sensitivity, thereby can reduce the machining accuracy of element and the assembly precision of parts, significantly reduce manufacture difficulty and production cost, enhance productivity greatly.
The technical characterictic that the center of circle on the face of cylinder 34 on the snap close 16 of auxiliary disengaging mechanism for breaker of the present utility model is concentric with the power transmission shaft of snap close 16 is a kind of preferred technical characterictic that prevents to produce the fluctuation of bigger contact force.In addition, the contact form of linkage structure 45 is the line contact, and it is to be made of with the extruding contact form the plane 33 on the face of cylinder on the snap close 16 34 and the drive link 14, and this line contact form is a kind of most preferred form.Be not difficult to draw following inspiration from the above description, it not only can be the plane that provides in the foregoing description and the contact form of cylinder, can also be the contact form of cylinder and cylinder, and promptly the contact-making surface on drive link 14 and the snap close 16 is the face of cylinder or arc column face.Not hard to imagine, the contact form of linkage structure 45 can also be the form of a contact or face contact.
Claims (10)
1. auxiliary disengaging mechanism for breaker, its insulation crust comprises in (10); The four connecting rod tripping mechanisms that electromagnetic relay (19), one are made of operating grip (11), U-shaped bar (12), drive rod (15) and drive link (14), a snap close (16), an energy-stored spring (13), one are used for main spring and a push rod (42) that makes electromagnetic relay (19) that handle (11) resets and revert to the push rod return mechanism, it is characterized in that described auxiliary disengaging mechanism for breaker also comprises:
Have a crotch arm (39) on the drive rod of described four connecting rod tripping mechanisms (15);
Deep-slotted chip breaker (41) on the shell (10), one of the tripping operation roofbolt (29) of list or multipole circuit breaker is stretched to auxiliary disengaging mechanism by this deep-slotted chip breaker (41), and with drive rod (15) on crotch arm (39) coupling, the dropout lever coupling linkage of the other end of tripping operation roofbolt (29) and the switching mechanism of list or multipole circuit breaker;
A linkage structure (45) is arranged between described drive link (14) and the snap close (16), by the face and the face extruding way of contact, can realize the locking between described drive link (14) and the snap close (16), makes auxiliary disengaging mechanism transfer loaded state to by unloaded state;
When described electromagnetic relay (19) with the transmission of the trip signal that collects by the tripping operation roofbolt (29) of the crotch arm (39) on the drive rod (15) of described four connecting rod tripping mechanisms, multipole circuit breaker, can realize the release between described drive link (14) and the snap close (16), make auxiliary disengaging mechanism transfer unloaded state to, and trigger list or multipole circuit breaker dropout by loaded state.
2. auxiliary disengaging mechanism for breaker according to claim 1 is characterized in that: described linkage structure (45) is the structure by the line contact form of the face of cylinder (34) on the snap close (16) and the formation of the plane (33) on the drive link (14).
3. auxiliary disengaging mechanism for breaker according to claim 1 and 2, it is characterized in that: linkage structure (45) is in releasing process, has desirable contact sliding length between the face of cylinder (34) on the snap close (16) and the plane (33) on the drive link (14), can locking reliable and stable to guarantee linkage structure (45), can release thread off sensitive again.
4. according to the described auxiliary disengaging mechanism for breaker of aforementioned any one claim, it is characterized in that: the center of circle on the face of cylinder (34) on the described snap close (16) and the center of rotation of snap close (16) are the twisted axis (26) of drive rod (15).
5. auxiliary disengaging mechanism for breaker according to claim 1, it is characterized in that: described snap close (16) suffered restraining force when auxiliary disengaging mechanism is in loaded state provides by the element that is installed on the drive rod (15), and the suffered constraint of described snap close (16) is meant that the constraint of (37) three of stop configurations that is subjected to linkage structure (45), the twisted axis hole (26) of snap close (16) is installed and limits the afterbody (38) of snap close (16) locatees.
6. auxiliary disengaging mechanism for breaker according to claim 1 is characterized in that: described push rod return mechanism is made of restoring lever (18) and twisted axis (23); Twisted axis (23) is fixed on the insulation crust (10), and restoring lever (18) is installed on the twisted axis (23) pivotally.
7. auxiliary disengaging mechanism for breaker according to claim 6, it is characterized in that: restoring lever (18) adopts thin body elasticity metal material to make, when the auxiliary tripping device is in unloaded state, protuberance (31) on the drive rod (15) orders about restoring lever (18) and moves, the active force of described protuberance (31) can make restoring lever (18) produce certain elastic deformation, the push rod (42) of electromagnetic relay (19) is revert to unloading position, simultaneously push rod (42) is stabilized in unloaded state.
8. auxiliary disengaging mechanism for breaker according to claim 1 is characterized in that:
Described stop configurations (37) is kept off (36), is arranged on spring-hanging column (35) and back-moving spring (17) formation on the snap close (16) by the location that is arranged on the drive rod (15);
One end of described back-moving spring (17) keeps off (36) with described location and is connected, and the other end is connected with described spring-hanging column (35);
When snap close (16) was not driven by the push rod (42) of electromagnetic relay (19), its afterbody (38) was tied abutting under the elastic force effect of back-moving spring (17) on the location retaining (36) all the time;
When the push rod (42) in electromagnetic relay (19) clashed into the afterbody (38) of snap close (16), the afterbody (38) of snap close (16) separated with location retaining (36), and the elastic restraint power that overcomes back-moving spring (17) is finished the release action.
9. auxiliary disengaging mechanism for breaker according to claim 1, it is characterized in that: described energy-stored spring (13) is sleeved on the axle sleeve (28) of drive rod (15), the one end is stuck on the convex shoulder (43) of drive rod (15), and the other end is stuck on the boss (44) of shell (10); Tripping operation roofbolt (29) on the described multipole circuit breaker switching mechanism is designed to described multipole circuit breaker electromagnetic relay drive rod (40) contiguous.
10. auxiliary disengaging mechanism for breaker according to claim 1 is characterized in that: also be provided with a locating piece (32) on described shell (10), be used to stop the excessive rotation of drive rod (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820118766XU CN201210469Y (en) | 2008-06-05 | 2008-06-05 | Assistant tripping mechanism for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820118766XU CN201210469Y (en) | 2008-06-05 | 2008-06-05 | Assistant tripping mechanism for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201210469Y true CN201210469Y (en) | 2009-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820118766XU Expired - Lifetime CN201210469Y (en) | 2008-06-05 | 2008-06-05 | Assistant tripping mechanism for circuit breaker |
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| Country | Link |
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| CN (1) | CN201210469Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101989518A (en) * | 2009-08-06 | 2011-03-23 | 浙江正泰电器股份有限公司 | Phase-line and neutral-line type residual current action breaker |
| CN101599395B (en) * | 2008-06-05 | 2011-06-29 | 浙江正泰电器股份有限公司 | Auxiliary disengaging mechanism for breaker |
| CN102422375A (en) * | 2009-04-30 | 2012-04-18 | Abb技术有限公司 | Mechanical latch unit for a main drive unit |
| CN103325630A (en) * | 2012-03-19 | 2013-09-25 | 施耐德电器工业公司 | Tripping unit for electric protection apparatus and electric protection apparatus |
| WO2014044036A1 (en) * | 2012-09-20 | 2014-03-27 | 上海诺雅克电气有限公司 | Minitype breaker with high stability |
-
2008
- 2008-06-05 CN CNU200820118766XU patent/CN201210469Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599395B (en) * | 2008-06-05 | 2011-06-29 | 浙江正泰电器股份有限公司 | Auxiliary disengaging mechanism for breaker |
| CN102422375A (en) * | 2009-04-30 | 2012-04-18 | Abb技术有限公司 | Mechanical latch unit for a main drive unit |
| CN102422375B (en) * | 2009-04-30 | 2014-09-10 | Abb技术有限公司 | Mechanical latch unit for a main drive unit |
| CN101989518A (en) * | 2009-08-06 | 2011-03-23 | 浙江正泰电器股份有限公司 | Phase-line and neutral-line type residual current action breaker |
| CN101989518B (en) * | 2009-08-06 | 2014-05-14 | 浙江正泰电器股份有限公司 | Phase-line and neutral-line type residual current action breaker |
| CN103325630A (en) * | 2012-03-19 | 2013-09-25 | 施耐德电器工业公司 | Tripping unit for electric protection apparatus and electric protection apparatus |
| CN103325630B (en) * | 2012-03-19 | 2017-03-01 | 施耐德电器工业公司 | Trip unit for electric protective equipment and electric protective equipment |
| WO2014044036A1 (en) * | 2012-09-20 | 2014-03-27 | 上海诺雅克电气有限公司 | Minitype breaker with high stability |
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Granted publication date: 20090318 |