CN207116350U - A kind of breaker shunt release - Google Patents

Abstract

A kind of breaker shunt release, belongs to low voltage electrical apparatus technology field.Including base, in breaker；Electrical apparatus release, on base, and breaker can be driven to perform trip action；Switch, is connected in the current supply circuit of electrical apparatus release；Feature：When circuit breaker tripping acts, the tripping actuating switch of breaker so that switch off the current supply circuit of electrical apparatus release.The fast shut-off of electromagnetic mechanism circuit is realized by the conversion of the revolving meber of breaker, intermediate link is few, and process time is short, and shunt opening reliability is high；Simple in construction, cost is low；Without the annex chamber bottom opening in breaker, the insulating properties thus, it is possible to significantly improve shunt release.

Description

A kind of breaker shunt release

Technical field

The utility model belongs to low voltage electrical apparatus technology field, and in particular to a kind of breaker shunt release.

Background technology

Usually said shunt release（Hereinafter referred to as shunt opening）, structure include magnet coil, shunt opening push rod, conversion member Part, transforming throwout lever and back-moving spring etc..When magnet coil energization adhesive, when driving shunt opening putter action, shunt opening push rod and open circuit The unlocking mechanism of device contacts and causes its unblock, now circuit breaker trip；Transforming throwout lever is closed by breaker divides converting member to act on And act, magnet coil is powered off by the conversion of conversion element after its action, thus reaches quick disjunction circuit and is protected with reaching Protect the purpose of circuit and equipment.Back-moving spring is used to reset shunt opening push rod.The shunt opening of this structure exists such as in actual use Lower defect：Described breaker, which closes, divides the rotating assembly that converting member is sometimes referred as breaker contact system, for meet shunt opening with Breaker closes the interaction divided between converting member i.e. rotating assembly, and annex bottom of chamber portion where shunt opening needs perforate, therefore nothing Method meets the requirement being adequately isolated.In addition, after shunt opening causes breaker unblock to thread off, shunt opening conversion is driven to breaker rotating axis component Element conversion includes shunt opening action → lock unblock → tripping action → upper connecting rod action → lower link action to cut off circuit Multiple actions such as → rotating assembly action → shunt opening conversion element conversion → electromagnetic coil circuit cut-out, intermediate link is more, experience Time is grown, and increase has the hidden danger of quality of magnet coil scaling loss, therefore can substantially reduce the reliability of shunt opening action.

Therefore, the applicant has made beneficial design, technical scheme described below is to produce under this background Raw.

The content of the invention

The purpose of this utility model is to provide a kind of simple in construction, and cost is low, the breaker shunt opening of good insulation preformance Electrical apparatus release, the circuit of its energy fast shut-off electromagnetic mechanism, so as to improve the reliability of shunt release.

The purpose of this utility model is such to what is reached, a kind of breaker shunt release, including base, is arranged on In breaker；Electrical apparatus release, on base, and breaker can be driven to perform trip action；Switch, is connected on the confession of electrical apparatus release In electrical circuit；It is characterized in：When circuit breaker tripping acts, the tripping actuating switch of breaker so that switch off electrical apparatus release Current supply circuit.

In a specific embodiment of the present utility model, described electrical apparatus release includes support and is fixedly installed on support On electromagnetic mechanism, two level enlarger and the pusher being slidably arranged on support, the pusher is in length side To one end be provided with the pull bar that coordinates with the dropout push rod of two level enlarger, and the other end in length direction is provided with and tripping Revolving meber coordinate push rod, be additionally provided with pusher with switch contradict switching device and for providing restoring force Switch back spring, when breaker in an ON state when, the revolving meber of the push rod of pusher and tripping departs from, switching device Switch is turned in the presence of switch back spring, while pull bar departs from dropout push rod；When breaker is off, Revolving meber moves pusher by promoting push rod mobile, and driving switching device disconnects switch, while pull bar is pulled and threaded off Push rod resets.

In another specific embodiment of the present utility model, the switching device of described pusher includes the first card Socket part and sliding part, the first described Access Division is formed to be set in the centre of the length direction of pusher, described sliding part In the top of pusher, sliding part includes the second Access Division and changer lever, and the second described Access Division is arranged on changer lever Lower section and with the first Access Division clamping, when pusher moves drive sliding part movement, drive changer lever release-push, it is described Switch back spring be set on sliding part.

In another specific embodiment of the present utility model, described electromagnetic mechanism includes dynamic iron core, and described two Level enlarger includes lock, and described latch pivot is connected on support, and one end of lock, which has, to be used for and described dropout The lock hook of push rod connection, the other end have the neck for being used for coordinating with the upper end end of dynamic iron core.

In another specific embodiment of the present utility model, described dropout push rod is pivotally connected on support, should A contact site being engaged with the pull bar in described pusher is provided with dropout push rod, described contact site is in two level The dynamic iron core is promoted to reset during enlarger padlock.

It is of the present utility model also have a specific embodiment in, be additionally provided with described dropout push rod for and open circuit The strike bar that the draw bar dropout of device coordinates.

In an of the present utility model and then specific embodiment, dropout energy storage is also equipped on described dropout push rod Spring, described dropout energy-stored spring provide energy storage for dropout push rod.

Of the present utility model more and in a specific embodiment, lock back-moving spring is equipped on described lock, Described lock back-moving spring provides restoring force for lock.

The utility model compared with prior art, has an advantageous effect in that as a result of said structure：First, lead to The fast shut-off of electromagnetic mechanism circuit is realized in the conversion for crossing the revolving meber of breaker, and intermediate link is few, and process time is short, shunt opening Reliability is high；Secondly, the cooperation between pusher and revolving meber has the features such as simple in construction, cost is low；3rd, without The annex chamber bottom opening of breaker, the insulating properties thus, it is possible to significantly improve shunt release.

Brief description of the drawings

Fig. 1 is structural representation of the shunt release of the present utility model in breaker.

Fig. 2 is the scheme of installation of revolving meber in breaker of the present utility model.

Fig. 3 is structural representation of the present utility model.

Fig. 4 is structural representation when electrical apparatus release described in the utility model is hidden in base.

Fig. 5 is explosive view of the present utility model.

Fig. 6 is structural representation of the utility model in breaker closing, shunt opening SBR.

Fig. 7 is the utility model in breaker closing, structural representation when shunt opening acts.

Fig. 8 is the utility model in circuit breaker trip, structural representation when described shunt opening converting member is changed.

Fig. 9 is structural representation when dropout push rod described in the utility model is in hasp state with lock.

Figure 10 is structural representation when dropout push rod described in the utility model is in released state with lock.

In figure：1. base；2. electrical apparatus release, 21. electromagnetic mechanisms, 211. dynamic iron cores, 212. shunt opening coils, 2121. first are led The wire of line 2122. second, 213. shunt opening coil skeletons, 22. two level enlargers, 221. locks, 2211. lock hooks, 2212. cards Groove, 2213. lock connecting shafts, 222. dropout push rods, 2221. contact sites, 2222. strike bars, 22221. actuation ends, 2223. take off Detain push rod connecting shaft, 223. lock back-moving springs, 224. dropout energy-stored springs, 23. supports, 26. locating shafts；3. switch, 31. First external binding post, 32. second external binding posts, 33. privates, 34, internal wiring terminal, 35. contacts；4. Pusher, 41. pull bars, 42. push rods, 43. conversion equipments, 431. first Access Divisions, 432. sliding parts, 4321. second clampings Portion, 4322. changer levers, 4323. boss, 44. switch back springs, 45. guide grooves；5. revolving meber；6. top cover；100. base Seat；200. lids, 201. annex chambers, 2011, accessory；300. operating mechanism.

Embodiment

Applicant will be described in detail with reference to accompanying drawing to specific embodiment of the present utility model below, but applicant couple The description of embodiment is not the limitation to technical scheme, any to be changed in the form rather than substance all according to the utility model design The scope of protection of the utility model should be considered as.

The concept of the every directionality for being related to upper, lower, left, right, front and rear or directionality is all in the following description On the basis of the position shown in Fig. 1, thus the special limit to technical scheme provided by the utility model can not be understood as It is fixed.

Fig. 1~Fig. 2 is referred to, the utility model is related to a kind of breaker shunt release, described breaker is modeling Case circuit breaker, including pedestal 100 and the lid 200 being arranged on pedestal 100 and the operating mechanism being arranged in pedestal 100 300, operating mechanism 300 described in the utility model belongs to known technology, therefore only makees simple description herein.Described behaviour Making mechanism 300 includes lever, elbow linkage, jumps lock construction and draw bar, and elbow linkage is driven by the operation to lever Action, connection and the breaking operation of breaker can be achieved.When operating mechanism 300 carries out trip operation, by pulling draw bar The jump lock construction of locking is unlocked, and realizes the dropout of operating mechanism 300.There is annex chamber 201, this is attached on described lid 200 The shunt release involved by the utility model is provided with part chamber 201.

Please continue to refer to Fig. 1~Fig. 2 and Fig. 3-Fig. 5 is combined, described shunt release includes base 1, electrical apparatus release 2, opened 3, revolving meber 5 is closed, the base 1 is arranged in annex chamber 201；The electrical apparatus release 2 is arranged on the bottom in the base 1, can The operating mechanism 300 of breaker is driven to perform trip action, the side of annex chamber 201 opens up at the tripping of operating mechanism 300 There is the accessory 2011 coordinated with electrical apparatus release 2, gyroaxis, the conduct of revolving meber 5 are fixed with the tripping of the operating mechanism The standard configuration part of breaker, preferably one end are fixed on the either axial end of gyroaxis left and right ends, and the other end is through described Accessory 2011 after be placed in annex chamber 201, can with the tripping synchronous rotary of operating mechanism 300 and with shunt release phase Coordinate, naturally it is also possible to which a shaft end of gyroaxis is reached in annex chamber 201 after passing through described accessory 2011, with shunted exciter tripping Device is engaged；The switch 3 is installed on the top of base 1 and top cover 6 is fitted with thereon, and the switch 3 is connected on the confession of electrical apparatus release 2 In electrical circuit, during 300 trip action of operating mechanism, lock construction unblock is jumped, the rotation of tripping drives revolving meber 5 to rotate, with returning Turn the rotary-actuated switch 3 of part 5 so that switch 3 disconnects the current supply circuit of electrical apparatus release 2.

Described electrical apparatus release 2 includes electromagnetic mechanism 21, two level enlarger 22 and support 23, the described He of electromagnetic mechanism 21 Two level enlarger 22 is arranged on support 23.Described electromagnetic mechanism 21 includes dynamic iron core 211, shunt opening coil 212 and divided Coil rack 213 is encouraged, described dynamic iron core 211 is connected with two level enlarger 22, and described shunt opening coil 212 is arranged on shunt opening On coil rack 213, described shunt opening coil skeleton 213 is arranged on support 23 and opened up in centre for accommodating dynamic iron core 211 inner chamber.In a preferred embodiment, support 23 can be the yoke of electromagnetic mechanism 21, without using other part. Described two level enlarger 22 includes lock 221, dropout push rod 222, lock back-moving spring 223 and dropout energy-stored spring 224, described lock 221 is pivotally connected on support 23, latches 221 one end and has and is used to be connected with dropout push rod 222 Lock hook 2211, the other end, which has, to be used to coordinate with the upper end end of dynamic iron core 211 and realize electromagnetic mechanism 21 and two level enlarger The neck 2212 connected between structure 22.Lock 221 is axially being inserted with lock connecting shaft 2213, described lock back-moving spring 223 are set in the lock connecting shaft 2213 as the offer restoring force of lock 221.

Described shunt release also includes the pusher 4 being slidably arranged on support 23, and the pusher 4 is in length The one end in direction is provided with the pull bar 41 coordinated with the dropout push rod 222 of two level enlarger 22, and in the other end of length direction Provided with the push rod 42 with the cooperation of the revolving meber 5 of circuit breaker operation mechanism.Switching device 43 is additionally provided with pusher 4 and switching is multiple Position spring 44, described switching device 43 contradict with switch 3, and described switch back spring 44 is that pusher 4 provides reply Power.In closing of power circuit breaker state, the push rod 42 of pusher 4 departs from the revolving meber 5 of breaker, and switching device 43 is switching Actuating switch 3 in the presence of back-moving spring 44, while pull bar 41 departs from dropout push rod 222；In breaker off-state, return Turn part 5 by promoting push rod 42 to move move pusher 4, drive the release-push 3 of switching device 43, while pull bar 41 is drawn Dynamic dropout push rod 222 resets.

Described pusher 4 is horizontally spaced to open up a pair of guide grooves 45, is provided with described guide groove 45 Locating shaft 26.Described locating shaft 26 is fixed on described support 23, is slided for playing the guiding role and ensureing to pusher 4 Dynamic push rod 4 can only make left and right move along locating shaft 26.Described dropout push rod 222 is pivotally connected on support 23, and the dropout pushes away A contact site 2221 being engaged with the pull bar 41 in described pusher 4, described contact site are provided with bar 222 2221 be that " Γ " shape is raised, and its " Γ " forming head portion is in contact cooperation with the pull bar 41 of pusher 4, for two level enlarger 22 The dynamic iron core 211 is promoted to reset in padlock.It is additionally provided with described dropout push rod 222 for the draw bar with breaker （Not shown in figure）The strike bar 2222 that dropout coordinates.Preferable described strike bar 2222 is integrally formed with dropout push rod 222, The actuation ends 22221 for hitting bar 2222 are corresponding with the draw bar of breaker.Dropout push rod 222 is also inserted with dropout in axial direction and pushed away Bar connecting shaft 2223, described dropout push rod connecting shaft 2223 are arranged on support 23.Described dropout energy-stored spring 224 is arranged In the dropout push rod connecting shaft 2223, energy storage is provided for dropout push rod 222.

The switching device 43 of described pusher 4 includes the first Access Division 431 and sliding part 432, the described first card Socket part 431 is formed is arranged on the top of pusher 4 in the centre of the length direction of pusher 4, described sliding part 432, Sliding part 432 includes the second Access Division 4321 and changer lever 4322, and the second described Access Division 4321 is arranged on changer lever 4322 Lower section and with the clamping of the first Access Division 431, when pusher 4 moves drive sliding part 432 move, drive changer lever 4322 Release-push 3.Described sliding part 432 is formed in one end of changer lever 4322 boss 4323, described switch back spring 44 are set on boss 4323, and restoring force is provided for sliding part 432.

Hereinafter, the action process of shunt release is illustrated.

Fig. 6 and Fig. 9 are referred to, and combines Fig. 5, the body of described switch 3 is preferably a microswitch, and electrical apparatus release 2 is set There are the first external wiring terminal 31 and the second external wiring terminal 32 being connected with outside control power supply.Described switch 3 is also set There are two internal wiring terminals 34 and privates 33 and contact 35, the one end of privates 33 and the second external wiring terminal 32 Connection, the other end are connected with 34 one of internal wiring terminal of internal wiring terminal.The first of described shunt opening coil 212 is led Line 2121 is connected with the other in which internal wiring terminal of internal wiring terminal 34, and the second wire of shunt opening coil 212 2122 are connected with the first external wiring terminal 31.Initially, breaker, which is in, connects（Closure）State, described dropout push rod 222 Hasp state is in lock 221, the push rod 42 of pusher 4 departs from the revolving meber 5 of breaker, the slip of switching device 43 Part 432 is moved to the left under the effect of switch back spring 44, and the contact 35 for switching 3 is compressed, and the conducting of switch 3 is the first wire 2121 are connected with privates 33, while the pull bar 41 in pusher 4 is moved to the left under the effect of sliding part 432, with dropout The contact site 2221 of push rod 222 departs from.Shunt release is in SBR.

Fig. 7~Figure 10 is referred to, and combines Fig. 5, when shunt release acts, in the first external terminals of switch 3 Apply control voltage between sub 31, second external binding post 32, the shunt opening coil 212 of described electromagnetic mechanism 21 is powered and produced Raw electromagnetic attraction, dynamic iron core 211 move right, and drive lock 221 to withstand the effect of lock back-moving spring 223, carry out the inverse time Pin rotates, dropout push rod 222 and the unblock of lock 221, and is rotated counterclockwise in the presence of dropout energy-stored spring 224, so The strike bar 2222 and circuit breaker draw bar of dropout push rod 222 afterwards（Not shown in figure）Contact and cause in operating mechanism 300 Lock construction unblock is jumped, tripping, which turns clockwise, drives revolving meber 5 to turn clockwise, as revolving meber 5 rotates clockwise and slides The push rod 42 of push rod 4 contacts and drives pusher 4 to move right.It is on the one hand sliding during pusher 4 moves right Dynamic push rod 4 drives sliding part 432 to be moved right in the case where withstanding conversion switch back spring 44 and acting on, sliding part 432 and switch 3 Contact 35 depart from, switch 3 contact 35 reset after the first wire 2121 and privates 33 electrical connection disconnect, that is, disconnect thread off The current supply circuit of device 2.Now no matter whether shunt opening control power supply continues to control power supply, and shunt opening coil 212 all powers off, electromagnetism Power disappears；On the other hand, pusher 4 moves right contacts and to withstand it de- with the contact site of dropout push rod 222 2221 Detain the effect of energy-stored spring 224 and turn clockwise, dropout push rod 222 is with the effect of lock 221 and in lock back-moving spring 223 In the presence of complete hasp and reset, while thread off push rod 222 and circuit breaker draw bar（Not shown in figure）Depart from.

When described breaker fastens lock again, the rotate counterclockwise of revolving meber 5 of breaker is de- with the push rod 42 of pusher 4 From sliding part 432 is moved to the left in the presence of switch back spring 44, and the contact 35 for switching 3 is compressed, and switch 3, which is connected, is First wire 2121 is connected with privates 33, and pusher 4 is moved to the left in the presence of sliding part 432, now push rod 42 Depart from revolving meber 5, the contact site 2221 of pull bar 41 and dropout push rod 222 departs from, and such shunt release is again in preparation shape State.

Special instruction is that above-described embodiment is to be applicable the miniaturization of breaker, reduces the body of shunt release Product.Because the finite energy that electromagnetic system can be provided after the volume of shunt release reduces, it is difficult to meet circuit breaker tripping institute The energy needed, therefore two level enlarger 22 is just used in the above-described embodiments, utilize the energy storage bullet in two level enlarger 22 Spring is amplified to electromagnetic energy, to improve the reliability of shunt release.Certainly the enough energy that can be provided in electromagnetic system Can also have during amount in simplified another embodiment, two level enlarger 22 can not be used in the embodiment, need to only be taken off in shunt opening Detaining increases the reaction spring resetted for dynamic iron core in the electromagnetic mechanism 21 of device, reaction spring installation is limited on static iron core, its Remaining setting previous embodiment is identical, and the operation principle of the shunt release is identical with previous embodiment, simply changes dynamic iron into Core can directly hit circuit breaker draw bar.When shunt release acts, sufficiently large suction is produced in dynamic iron core so that dynamic Iron core overcomes counter spring force to be moved from off-position to attracted position, and dynamic iron core can directly hit circuit breaker draw bar and cause Jump lock construction unblock in operating mechanism 300, tripping, which turns clockwise, drives revolving meber 5 to turn clockwise, as revolving meber 5 is suitable Hour hands rotate and are contacted with the push rod 42 of pusher 4 and drive pusher 4 to move right.Moved right in pusher 4 During, one side pusher 4 drives sliding part 432 to be moved right in the case where withstanding conversion switch back spring 44 and acting on, Sliding part 432 and switch 3 contact 35 and depart from, switch 3 contact 35 reset after the first wire 2121 and privates 33 be electrically connected Disconnection is connect, that is, disconnects the current supply circuit of electrical apparatus release 2.Now no matter whether shunt opening control power supply continues to control power supply, shunt opening Coil 212 all powers off, and electromagnetic force disappears, and dynamic iron core resets in the presence of reaction spring, and dynamic iron core takes off with circuit breaker draw bar From.

Claims (7)

1. a kind of breaker shunt release, including

Base (1), in breaker；

Electrical apparatus release (2), on base (1), and breaker can be driven to perform trip action；

Switch (3), be connected in the current supply circuit of electrical apparatus release (2)；Characterized in that, when circuit breaker tripping acts, breaker Tripping actuating switch (3) so that switch (3) disconnect electrical apparatus release (2) current supply circuit；Described electrical apparatus release (2) includes support (23) and be fixedly installed on support (23) electromagnetic mechanism (21), two level enlarger (22) and be slidably arranged in support (23) pusher (4) on, the pusher (4) are provided with de- with two level enlarger (22) in one end of length direction Detain the pull bar (41) that push rod (222) coordinates, and the other end in length direction is provided with the push rod that coordinates with the revolving meber (5) of tripping (42) switching device (43) contradicted with switch (3) and the switching for providing restoring force, are additionally provided with pusher (4) Back-moving spring (44), when breaker in an ON state when, the push rod (42) of pusher (4) and the revolving meber (5) of tripping are de- From switching device (43) turns on switch (3), while pull bar (41) and dropout push rod in the presence of switch back spring (44) (222) depart from；When breaker is off, revolving meber (5) makes pusher (4) by promoting push rod (42) mobile Mobile, driving switching device (43) disconnects switch (3), while pull bar (41) pulls dropout push rod (222) to reset.

2. a kind of breaker shunt release according to claim 1, it is characterised in that described pusher (4) Switching device (43) includes the first Access Division (431) and sliding part (432), and described the first Access Division (431) forms and slided The centre of the length direction of push rod (4), described sliding part (432) are arranged on the top of pusher (4), sliding part (432) Including the second Access Division (4321) and changer lever (4322), described the second Access Division (4321) is arranged on changer lever (4322) Lower section and with the first Access Division (431) clamping, drive sliding part (432) mobile when pusher (4) is mobile, drive changer lever (4322) release-push (3), described switch back spring (44) are set on sliding part (432).

A kind of 3. breaker shunt release according to claim 1, it is characterised in that described two level enlarger (22) lock (221) is also included, described lock (221) is pivotally connected on support (23), and one end of lock (221), which has, to be used In the lock hook (2211) being connected with described dropout push rod (222), the other end has the dynamic iron core being used for electromagnetic mechanism (21) (211) neck (2212) that upper end end coordinates.

A kind of 4. breaker shunt release according to claim 3, it is characterised in that described dropout push rod (222) It is pivotally connected on support (23), one and the pull bar (41) in described pusher (4) is provided with the dropout push rod (222) The contact site (2221) being engaged, described contact site (2221) promote the dynamic iron in two level enlarger (22) padlock Core (211) resets.

A kind of 5. breaker shunt release according to claim 4, it is characterised in that described dropout push rod (222) On be additionally provided with for the strike bar (2222) that coordinates of being threaded off with the draw bar of breaker.

A kind of 6. breaker shunt release according to claim 5, it is characterised in that described dropout push rod (222) On be also equipped with dropout energy-stored spring (224), described dropout energy-stored spring (224) is that dropout push rod (222) provides energy storage.

7. a kind of breaker shunt release according to claim 3, it is characterised in that match somebody with somebody on described lock (221) Provided with lock back-moving spring (223), described lock back-moving spring (223) provides restoring force for lock (221).