CN203799987U - Miniature circuit breaker - Google Patents
Miniature circuit breaker Download PDFInfo
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- CN203799987U CN203799987U CN201420111276.2U CN201420111276U CN203799987U CN 203799987 U CN203799987 U CN 203799987U CN 201420111276 U CN201420111276 U CN 201420111276U CN 203799987 U CN203799987 U CN 203799987U
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- circuit breaker
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Abstract
The utility model discloses a miniature circuit breaker, which comprises a shell, a first moving contact, a first static contact, a second moving contact, a second static contact and the like. The miniature circuit breaker is characterized in that the shell is provided with screwdriver holes which are suitable for a screwdriver to extend and carry out wiring on a first output terminal and a second output terminal, a terminal cover is arranged between the first output terminal and the corresponding screwdriver hole and between the second output terminal and the corresponding screwdriver, the screwdriver holes corresponding to the first output terminal and the second output terminal are shielded when the first moving contact, the first static contact, the second moving contact and the second static contact are connected, a locking assembly is arranged between a tripping mechanism and the second moving contact, the tripping mechanism and the second moving contact are triggered successively under the action of an external force, the first moving contact, the first static contact, the second moving contact and the first static contact are enabled to be disconnected successively, the terminal cover is enabled to unlock shielding for the screwdriver hole under driving of the locking assembly at the same time. The miniature circuit breaker disclosed by the utility model can ensure the wiring personnel to carry out wiring under the condition that the circuit breaker is completely disconnected, thereby well preventing the wiring personnel to carry out hot-line operations because of negligence.
Description
Technical field
The utility model belongs to technical field of electricity, particularly a kind of miniature circuit breaker.
Background technology
Miniature circuit breaker is most popular a kind of terminal protection electrical equipment during architectural electricity terminal power distribution equipment draws.For protections such as the short circuit of single-phase, the three-phase below 125A, overload, overvoltages, comprise one pole 1P, four kinds of two utmost point 2P, three utmost point 3P, four utmost point 4P etc.
Miniature circuit breaker is comprised of operating mechanism, contact, protective device (various release), arc quenching system etc.Its main contacts is by manual operation or electric switch-on.After main contacts closure, free tripping mechanism is locked in main contacts on closing position.The coil of overcurrent trip and the thermal element of thermal overload release are connected with main circuit, and the coil of under-voltage release and power supply are in parallel.When circuit is short-circuited or seriously transship, the armature adhesive of overcurrent trip, makes free tripping mechanism action, and main contacts disconnects main circuit.When circuit overloads, the heating of the thermal element of thermal overload release makes on bimetal leaf crooked, promotes free tripping mechanism action.When circuit under voltage, the armature of under-voltage release discharges.Also make free tripping mechanism action.Chinese patent literature CN102820182A discloses a kind of heavy-current micro circuit breaker, comprise housing, in housing, be provided with operating mechanism, plastic latch buckle frame, tripping mechanism, moving contact, fixed contact, arc control device and bimetal leaf, both sides in housing are also respectively arranged with binding post, described plastic latch buckle frame is hinged to be arranged in housing, described plastic latch buckle frame comprises the latch part matching with operating mechanism and the instantaneous trip portion matching with tripping mechanism, described tripping mechanism comprises electromagnetic induction element and armature, the setting that matches with bimetal leaf of described electromagnetic induction element, described armature is fixedly installed on the instantaneous trip portion of described plastic latch buckle frame and the setting that matches with electromagnetic induction element.
Technical scheme in above-mentioned patent documentation, have simple in structure, cost is lower and greatly improve the effect of breaking capacity and rated current.But in the circuit breaker of this patent documentation, the tool hole of revolving communicating with lead-out terminal is opened wide always, the in the situation that of being easy to occur wiring personnel contact not disconnecting in circuit breaker, by revolving tool, stretch into and revolve the misoperation of in tool hole, lead-out terminal being carried out wiring, thereby cause wiring personnel electric shock accidents.
Utility model content
For this reason, technical problem to be solved in the utility model is that circuit breaker of the prior art is exposed untight state for the fixing tool hole of revolving of lead-out terminal and wire, the in the situation that of being easy to occur wiring personnel contact do not disconnect completely in circuit breaker, by revolving tool, stretch into and revolve the misoperation of in tool hole, lead-out terminal being carried out wiring, thereby cause wiring personnel electric shock accidents.Thereby provide a kind of wiring safe and reliable miniature circuit breaker.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
A kind of miniature circuit breaker, comprise housing, be positioned at the arc-control device of described housing, the first fixed contact, be provided with the tripping mechanism of the first moving contact, the second fixed contact, the second moving contact, and the controlling organization of controlling described tripping mechanism action, wherein said the first moving contact is electrically connected to first input end, described the first fixed contact is electrically connected to the first lead-out terminal, described the second moving contact is electrically connected to the second input terminal, described the second fixed contact is electrically connected to described the second lead-out terminal, on described housing, form and be applicable to revolving tool and stretch into described the first lead-out terminal, what the second lead-out terminal carried out wiring revolves tool hole, also comprise terminal cap, described terminal cap is at least provided with one, be arranged on described the first lead-out terminal corresponding with it revolve between tool hole and described the second lead-out terminal and its corresponding revolving between tool hole, first is moving, fixed contact and second moves, when fixed contact is connected, to described the first lead-out terminal, described in the second lead-out terminal is corresponding, revolving tool hole blocks, also comprise locked component, be arranged between described tripping mechanism and described the second moving contact, under the effect of external force, described locked component successively triggers described tripping mechanism and described the second moving contact, make described first to move, fixed contact and described second moves, fixed contact disconnects in succession, make terminal cap remove under the driving of described locked component simultaneously and revolve blocking of tool hole to described.
In above-mentioned miniature circuit breaker, described locked component comprises hook knob and the locking pull bar of hinge, wherein said hook knob can be stretched out or retract along described housing rotation under the effect of external force, in described terminal cap, form joint portion, in described hook knob, form the drive division coordinating with described joint portion, described drive division, under the driving of described hook knob, drives described terminal cap blocking round movement between position and unshielding position.
Described locking pull bar comprises the second trigger unit that triggers the first trigger unit of described tripping mechanism dropout and trigger described the second moving contact disconnection, and when described locking pull bar moves toward triggering direction with described hook knob, described the first trigger unit is the triggering to described the second moving contact prior to described the second trigger unit to the triggering of described tripping mechanism.
In above-mentioned miniature circuit breaker, on described housing, form thread groove, described hook knob is provided with the first projection coordinating with described thread groove, and under the External Force Acting of rotation, described hook knob is stretched out or retracts along the slip rotation of described thread groove by the first projection.
In above-mentioned miniature circuit breaker, between described the first trigger unit and described tripping mechanism, be also provided with the seesaw that drives described tripping mechanism to thread off, described the first trigger architecture is the breach being molded on described locking pull bar, one end of described seesaw acts on described tripping mechanism, and the other end stretches in described breach.
In above-mentioned miniature circuit breaker, described moving contact is provided with one second moving contact projection, described the second trigger unit is the triggering projection that is molded over the lower end of described locking pull bar, described triggering projection is by described the second moving contact projection of conflicting, make described the second moving contact overcome the elastic force of the second moving contact spring, towards the direction motion away from described the second fixed contact, thereby described the second moving contact and described the second fixed contact are disconnected.
In above-mentioned miniature circuit breaker, described triggering projection is reverse V-shaped.
Described the first lead-out terminal, described the second lead-out terminal are set up in parallel in described housing, described terminal cap is provided with one, in described terminal cap, form with described and revolve the through hole that tool number of perforations is consistent, described through hole in described terminal cap with described in revolve tool hole and be aligned to unshielding position, the described through hole in described terminal cap with described in revolve tool hole and stagger for blocking position.
Described joint portion is the groove being molded in described terminal cap, and described driving part is molded over the one handle in described hook knob, and described handle stretches in described groove, by promoting the cell wall of described groove, drives described terminal cap round mobile.
In above-mentioned miniature circuit breaker; described control structure comprises the manual knob mechanism that controls described the first dynamic and static contact and connect, the circuit protection actuating mechanism that drives described tripping mechanism to thread off, and the board part that drives described circuit protection actuating mechanism action.
In above-mentioned miniature circuit breaker, described board part comprises main line and the auxiliary wiring board vertical with described main line, the electric connection line of described the first fixed contact and described the first lead-out terminal is on described auxiliary wiring board, and the periphery of described electric connection line and described auxiliary wiring board is surrounded by magnetic screen lid.
In above-mentioned miniature circuit breaker, on described board part, be at least provided with a communication interface.
In above-mentioned miniature circuit breaker, the upper surface of described hook knob is provided with revolves tool described in being applicable to and inserts the notch turning.
In above-mentioned miniature circuit breaker, described hook knob is stretched out on one end of housing and is radially formed through hole, and described through hole is provided with padlock.
In above-mentioned miniature circuit breaker, described the first lead-out terminal, described the second lead-out terminal plug are arranged on terminal fixed mount, are arranged with magnet ring, and the output of described magnet ring connects and outputs to described board part.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) correspondence position of miniature circuit breaker middle shell of the present utility model and lead-out terminal form be applicable to revolving tool stretch into described lead-out terminal is carried out to wiring revolve tool hole, also comprise:
Terminal cap, be arranged on described lead-out terminal and described in revolve between tool hole, when first and second dynamic and static contact is connected, to revolving tool hole, block.
Locked component, be arranged between tripping mechanism and the second moving contact, under the effect of external force, locked component successively triggers described tripping mechanism and the second moving contact, the first moving contact and the first fixed contact, the second moving contact and the second fixed contact are disconnected in succession, meanwhile, terminal cap is removed under the driving of locked component and revolved blocking of tool hole to described.Circuit breaker of the present utility model can disconnect the first dynamic/static contact of circuit breaker inside, the second dynamic/static contact revolving when open in tool hole, and revolve tool hole, be blocked after closing and could connect circuit breaker by operation knob, safe wiring in the situation that thereby assurance wiring personnel disconnecting completely in circuit breaker, can prevent that wiring personnel are because of carelessness hot line job well.
(2) in miniature circuit breaker of the present utility model; board part for the action of drive circuit protection actuating mechanism comprises main line and the auxiliary wiring board vertical with main line; the electric connection line of described the first fixed contact and described the first lead-out terminal is on described auxiliary wiring board; can be for detection of overload and over current fault; and the periphery of described electric connection line and described auxiliary wiring board is surrounded by magnetic screen lid, avoided the interference that external electromagnetic ripple detects board part.
(3) in miniature circuit breaker of the present utility model; on board part for the action of drive circuit protection actuating mechanism, be also provided with communication interface; can be connected with other watch-dog; by setting, leak electricity leakage current, the overload of action, the operating characteristics of overcurrent is monitored the fault in circuit breaker, and show by LCDs.
(4) in miniature circuit breaker of the present utility model, lead-out terminal plug is arranged on terminal fixed mount and is arranged with magnet ring, and the output of described magnet ring connects and outputs to described board part, can realize the leak current fault of the LN utmost point is detected.
(5) in miniature circuit breaker of the present utility model, be also provided with indicator light, according to the working condition of circuit breaker, indicate the indication of different color and different flicker frequencies, facilitate circuit breaker to break down or maintainer's Search and Orientation.
Accompanying drawing explanation
For content of the present utility model is more likely to be clearly understood, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is structure chart of the present utility model;
Fig. 2 is the structure chart that the utility model removes back casing;
Fig. 3 is exploded view of the present utility model;
Fig. 4 is explosive decomposition figure of the present utility model;
Fig. 5 is the exploded view of locked component in the utility model;
Fig. 6 is the schematic diagram that the utility model is provided with padlock;
Fig. 7 is the exploded view of lead-out terminal assembly of the present utility model.
In figure, Reference numeral is expressed as: 1-housing, 2-manual knob mechanism, 21-knob, 22-knob back-moving spring, 23-connecting rod, 3-tripping mechanism, 301-snap frame, 302-back-moving spring, 4-locked component, 41-hook knob, 411-the first projection, 412-notch, 413-through hole, 414-drive division, 42-locks pull bar, 401-seesaw, 421-the first trigger unit, 422-the second trigger unit, 5-padlock, 611-first input end, 612-the second input terminal, 62-lead-out terminal assembly, 621-the first lead-out terminal, 622-the second lead-out terminal, 71-the first moving contact, 72-the first fixed contact, 73-the second moving contact, 731-the second moving contact projection, 732-the second moving contact spring, 74-the second fixed contact, 8-terminal cap, 81-joint portion, 801-revolves tool hole, 9-arc-control device, 10-circuit protection actuating mechanism, 11-board part, 111-main circuit board, the auxiliary wiring board of 112-, 12-communication interface, 13-magnetic screen lid, 14-magnet ring, 15-terminal fixed mount, 16-indicator light, 17-electric connection line.
Embodiment
As shown in Figures 1 to 7, miniature circuit breaker in the utility model, comprise housing 1, be positioned at the arc-control device 9 of housing, the first fixed contact 72, be provided with the tripping mechanism 3 of the first moving contact 71, the second fixed contact 74, the second moving contact 73, and the controlling organization of controlling tripping mechanism 3 actions, wherein the first moving contact 71 is electrically connected to first input end 611, the first fixed contact 72 is electrically connected to the first lead-out terminal 621, the second moving contact 73 is electrically connected to the second input terminal 612, the second fixed contact 74 is electrically connected to the second lead-out terminal 622, on housing 1, form and be applicable to revolving tool and stretch into the first lead-out terminal 621, what the second lead-out terminal 622 carried out wiring revolves tool hole 801.Also comprise terminal cap 8 and locked component 4, wherein terminal cap 801 is at least provided with one, be arranged on the first lead-out terminal 621 corresponding with it revolve between tool hole 801 and described the second lead-out terminal 622 and its corresponding revolving between tool hole 801, when the first dynamic and static contact and the second dynamic and static contact are connected, described the first lead-out terminal 621, the corresponding tool hole 801 of revolving of the second lead-out terminal 622 are blocked.Locked component 4 comprises hinged hook knob 41 and locking pull bar 42, wherein hook knob 41 can be stretched out or retract along housing 1 rotation under the effect of external force, in terminal cap 8, form joint portion 81, in hook knob 41, form the drive division 414 coordinating with joint portion 81, drive division 414 is under the driving of hook knob 41, and drive terminal lid 8 is blocking the round movement in position and unshielding position.In the present embodiment, described the first lead-out terminal 621, described the second lead-out terminal 622 are set up in parallel in described housing 1, described terminal cap 8 is provided with one, revolve tool hole 801 and be provided with two, in terminal cap 8, form the through hole consistent with revolving tool hole 801 numbers, two through holes in terminal cap 8 and two are revolved tool hole 801 and are aligned to unshielding position, and two through holes in terminal cap 8 and two are revolved tool hole 801 and staggered for blocking position.Circuit breaker of the present utility model can disconnect the first dynamic/static contact 71 of circuit breaker inside, the second dynamic/static contact 72 revolving when open in tool hole 801, and revolving after tool hole 801 is blocked and closes, could pass through operation knob 21 and connect the first dynamic/static contact 71, safe wiring in the situation that thereby assurance wiring personnel disconnecting completely in circuit breaker, can prevent that wiring personnel from operating charged the first lead-out terminal 621, the second lead-out terminal 622 because neglecting well.
In the present embodiment, introduce a kind of structure of concrete preferred Lock Part, the locking pull bar 42 of this Lock Part comprises the first trigger unit 421 that triggers tripping mechanism 3 dropouts and the second trigger unit 422 that triggers the second moving contact 73, when locking pull bar 42 moves toward triggering direction along with hook knob 41, the triggering of 421 pairs of tripping mechanisms 3 of the first trigger unit is prior to the triggering of 422 pairs of the second moving contacts 73 of the second trigger unit.On housing, 1 forms thread groove, and hook knob 41 is provided with the first projection 411 coordinating with thread groove, and under rotation External Force Acting, hook knob 41 is slided to rotate along thread groove by the first projection 411 and stretched out or retract.In the present embodiment, the first projection 411 is preferably skewback.
Between the first trigger unit 421 and tripping mechanism 3, be also provided with and drive seesaw 401, the first trigger units 421 that tripping mechanism 3 threads off for being molded on locking pull bar 42 breach, one end of seesaw 401 acts on tripping mechanism 3, and the other end stretches in described breach.
The second moving contact 73 is provided with one second moving contact projection 731, described the second trigger unit 422 is for being molded over the triggering projection of the lower end of locking pull bar 42, described triggering projection is by the second moving contact projection 731 of conflicting, make described the second moving contact 73 overcome the elastic force of the second moving contact spring 732, towards the direction motion away from described the second fixed contact 74, thereby the second moving contact 73 and the second fixed contact 74 are disconnected.
In the present embodiment, trigger projection and be reverse V-shaped.
Joint portion 81 is for being molded over terminal cap 3 upper grooves, and drive division 414 is for to be molded over the one handle in hook knob 41, and handle stretches in groove, by promoting the cell wall drive terminal lid 8 of groove, comes and goes mobile.
Controlling organization comprises the manual knob mechanism 2 that controls the first dynamic and static contact and connect, the circuit protection actuating mechanism 10 that drives tripping mechanism 3 to thread off, and the board part 11 of drive circuit protection actuating mechanism 10 actions.
In the present embodiment, board part 11 comprise main circuit board 111 and with the vertically disposed auxiliary wiring board 112 of main circuit board 111, the electric connection line of described the first fixed contact 72 and described the first lead-out terminal 621 is on described auxiliary wiring board 112, and the periphery of described electric connection line 17 and auxiliary wiring board 112 is surrounded by magnetic screen lid 13, the board part of this kind of structure can be for detection of overload and over current fault.
On board part 11, be at least provided with a communication interface 12, this communication interface 12 can be connected with other watch-dog, by setting leak electricity leakage current, the overload of action, the operating characteristics of overcurrent the fault in circuit breaker is monitored, and show by LCDs, indicator light 16 is indicated different colors and different flicker frequency according to circuit breaker failure situation simultaneously, be convenient to the quick location of the later reset circuit breaker of circuit reparation, in the present embodiment, communication interface 12 is provided with two.
The upper surface of hook knob 41 is provided with and is applicable to revolving tool and inserts the notch 412 turning, and this revolves tool can be for screwdriver etc., and this notch can be " one " font notch or " ten " font notch.
In order to guarantee wiring process safety, hook knob 41 is stretched out on one end of housing 1 and is radially formed through hole 413, this through hole 413 is provided with padlock 5, hook knob 41 by 5 pairs of off-states of padlock locks, can prevent that hook knob 41 is under the effect of external force, return in housing 1, and make circuit breaker internal switching.
In order to realize, the leak current fault of the LN utmost point is detected, the first lead-out terminal 621, the second lead-out terminal 622 plugs are arranged on and on terminal fixed mount, are arranged with magnet ring 14, and the output of described magnet ring 14 connects and outputs to described board part 11.
The course of work of miniature circuit breaker wiring of the present utility model, when needs wiring, operator needs first by instruments such as screwdrivers, to insert in notch, twist-lock knob 41, the first projection 411 in hook knob 41 is that skewback rotates along the thread groove on housing, time hook knob 41 direction outside housing screw out, make in hook knob 42 process that direction screws out outside housing, be hinged on locking pull bar 42 in hook knob 41 along with outward direction stretches out, breach on locking pull bar 42 contacts with seesaw 401, by breach, drive seesaw 401 then to drive tripping mechanism 3 to thread off, first is moving, fixed contact disconnects, locking pull bar 42 continues along with outward direction stretches out, reverse V-shaped triggering projection on locking pull bar 42 is against the second moving contact projection 731 effects, make the second moving contact 73 overcome the elastic force of the second moving contact spring 732, toward moving away from the second fixed contact 74 directions, thereby make second to move, fixed contact disconnects.In this simultaneously, the drive division 414 in hook knob 41 promotes terminal cap 8 and moves to unshielding position by blocking position, makes two on housing 1 revolve tool hole 801 and communicates with the first lead-out terminal 621, the second lead-out terminal 622.Operator can safe ready ground wiring.In order to guarantee that in wiring process, circuit breaker reliably disconnects, can also use padlock to lock to the hook knob 42 of stretching out outside housing, effectively prevent in the situation that lead-out terminal is charged, wiring personnel remove to operate lead-out terminal by revolving tool.
After wiring finishes, wiring librarian use screwdriver counter-rotation hook knob 41, the first projection 411 in hook knob 41 is that skewback moves along the thread groove on housing 1, and hook knob 41 rotations are retracted toward the interior direction of housing.Locking pull bar 42 moves toward the interior direction of housing 1 under the drive of hook knob 41, now, reverse V-shaped triggering projection on locking pull bar 42 no longer drives the second moving contact 73 to reset against the second moving contact projection 731, the second moving contact springs 732, and the second dynamic and static contact is connected.The breach of locking pull bar 42 drives the left end of seesaw 401, and seesaw 401 is swayed, and the right-hand member perk of seesaw 401 does not drive tripping mechanism 3, now can connect circuit by manual Knob mechanisms 2 by the operation in controlling organization.Meanwhile, terminal cap 8, under the driving of hook knob 41, is moved to and is blocked position by unshielding position, and terminal cap 8 will be revolved tool hole blocking and be closed, and now, revolving tool cannot carry out wiring through revolving 801 pairs, tool hole the first lead-out terminal 621, the second lead-out terminal 622.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And among the protection range that the apparent variation of being extended out thus or change are still created in the utility model.Obviously, above-described embodiment is only for example is clearly described, and the not restriction to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And among the protection range that the apparent variation of being extended out thus or change are still created in the utility model.
Claims (14)
1. a miniature circuit breaker, comprise housing (1), be positioned at the arc-control device (9) of described housing, the first fixed contact (72), be provided with the tripping mechanism (3) of the first moving contact (71), the second fixed contact (74), the second moving contact (73), and the controlling organization of controlling described tripping mechanism (3) action, wherein said the first moving contact (71) is electrically connected to first input end (611), described the first fixed contact (72) is electrically connected to the first lead-out terminal (621), described the second moving contact (73) is electrically connected to the second input terminal (612), described the second fixed contact (74) is electrically connected to described the second lead-out terminal (622), it is characterized in that: described housing (1) forms and is applicable to revolving tool and stretches into described the first lead-out terminal (621), what the second lead-out terminal (622) carried out wiring revolves tool hole (801), also comprise:
Terminal cap (8), at least be provided with one, be arranged on described the first lead-out terminal (621) corresponding with it revolve between tool hole (801) and described the second lead-out terminal (622) and its corresponding revolving between tool hole (801), when the first dynamic and static contact and the second dynamic and static contact are connected, revolve tool hole (801) described in corresponding to described the first lead-out terminal (621), the second lead-out terminal (622) and block;
Locked component (4), be arranged between described tripping mechanism (3) and described the second moving contact (73), under the effect of external force, described locked component (4) successively triggers described tripping mechanism (3) and described the second moving contact (73), described the first moving contact (71) and described the first fixed contact (72), described the second moving contact (73) are disconnected in succession with described the second fixed contact (74), meanwhile, described terminal cap (8) is removed under the driving of described locked component (4) and revolved blocking of tool hole (801) to described.
2. a kind of miniature circuit breaker according to claim 1, it is characterized in that: described locked component (4) comprises hinge hook knob (41) and locking pull bar (42) together, wherein said hook knob (41) can be stretched out or retract along described housing (1) rotation under the effect of rotation external force, in described terminal cap (8), form joint portion (81), in described hook knob (41), form the drive division (414) coordinating with described joint portion (81), described drive division (414) is under the driving of described hook knob (41), drive described terminal cap (8) blocking round movement between position and unshielding position, described locking pull bar (42) comprises the first trigger unit (421) that triggers described tripping mechanism (3) dropout and the second trigger unit (422) that triggers described the second moving contact (73) disconnection, and when described locking pull bar (42) moves toward triggering direction with described hook knob (41), described the first trigger unit (421) is the triggering to described the second moving contact (73) prior to described the second trigger unit (422) to the triggering of described tripping mechanism (3).
3. a kind of miniature circuit breaker according to claim 2, it is characterized in that: described housing forms thread groove on (1), described hook knob (41) is provided with the first projection (411) coordinating with described thread groove, under rotation External Force Acting, described hook knob (41) is slided to rotate along described thread groove by described the first projection (411) and is stretched out or retract.
4. according to a kind of miniature circuit breaker described in claim 2 or 3, it is characterized in that: between described the first trigger unit (421) and described tripping mechanism (3), be also provided with the seesaw (401) that drives described tripping mechanism (3) to thread off, described the first trigger unit (421) is for being molded over the breach on described locking pull bar (42), it is upper that one end of described seesaw (401) acts on described tripping mechanism (3), and the other end stretches in described breach.
5. a kind of miniature circuit breaker according to claim 4, it is characterized in that: described the second moving contact (73) is provided with one second moving contact projection (731), described the second trigger unit (422) is for being molded over the triggering projection of the lower end of locking pull bar (42), described triggering projection is by described the second moving contact projection (731) of conflicting, make described the second moving contact (73) overcome the elastic force of the second moving contact spring (732), towards the direction motion away from described the second fixed contact (74), described the second moving contact (73) disconnects with described the second fixed contact (74).
6. a kind of miniature circuit breaker according to claim 5, is characterized in that: described triggering projection is reverse V-shaped.
7. a kind of miniature circuit breaker according to claim 6, it is characterized in that: described the first lead-out terminal (621), described the second lead-out terminal (622) are set up in parallel in described housing (1), described terminal cap (8) is provided with one, in described terminal cap (8), form and the described consistent through hole of tool hole (801) number that revolves, described through hole in described terminal cap (8) with described in revolve tool hole (801) and be aligned to unshielding position, the described through hole in described terminal cap (8) with described in revolve tool hole (801) and stagger for blocking position.
8. a kind of miniature circuit breaker according to claim 2, it is characterized in that: described joint portion (81) are for being molded over described terminal cap (8) upper groove, described drive division (414) is for being molded over the one handle in described hook knob (41), described handle stretches in described groove, by promoting the cell wall of described groove, drives described terminal cap (8) round mobile.
9. a kind of miniature circuit breaker according to claim 1; it is characterized in that: described controlling organization comprises the manual knob mechanism (2) that controls described the first dynamic and static contact and connect, the circuit protection actuating mechanism (10) that drives described tripping mechanism to thread off, and the board part (11) that drives described circuit protection actuating mechanism action.
10. a kind of miniature circuit breaker according to claim 9, it is characterized in that: described board part (11) comprise main circuit board (111) and with the vertically disposed auxiliary wiring board of described main circuit board (112), described the first fixed contact (72) is upper around described auxiliary wiring board (112) with the electric connection line of described the first lead-out terminal (621), and the periphery of described electric connection line (17) and described auxiliary wiring board (112) is surrounded by magnetic screen lid (13).
11. a kind of miniature circuit breakers according to claim 10, is characterized in that: on described board part (11), be at least provided with a communication interface (12).
12. a kind of miniature circuit breakers according to claim 2, is characterized in that: described hook knob (41) is provided with revolves tool described in being applicable to and insert the notch (412) turning.
13. a kind of miniature circuit breakers according to claim 12, is characterized in that: described hook knob (41) is stretched out on one end of described housing (1) and radially formed through hole (413), and described through hole is provided with padlock (5).
14. a kind of miniature circuit breakers according to claim 9, it is characterized in that: described the first lead-out terminal (621), described the second lead-out terminal (622) plug are arranged on terminal fixed mount (15), be arranged with magnet ring (14), the output of described magnet ring (14) connects and outputs to described board part (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420111276.2U CN203799987U (en) | 2014-03-12 | 2014-03-12 | Miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420111276.2U CN203799987U (en) | 2014-03-12 | 2014-03-12 | Miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203799987U true CN203799987U (en) | 2014-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420111276.2U Withdrawn - After Issue CN203799987U (en) | 2014-03-12 | 2014-03-12 | Miniature circuit breaker |
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| CN (1) | CN203799987U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887124A (en) * | 2014-03-12 | 2014-06-25 | 科都电气有限公司 | Micro breaker |
| CN106229231A (en) * | 2016-08-11 | 2016-12-14 | 现代重工(中国)电气有限公司 | A kind of MCB miniature circuit breaker |
| CN108155500A (en) * | 2017-12-26 | 2018-06-12 | 上海航天科工电器研究院有限公司 | A kind of power connector of protection against electric shock structure |
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2014
- 2014-03-12 CN CN201420111276.2U patent/CN203799987U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887124A (en) * | 2014-03-12 | 2014-06-25 | 科都电气有限公司 | Micro breaker |
| CN103887124B (en) * | 2014-03-12 | 2016-04-27 | 科都电气有限公司 | A kind of miniature circuit breaker |
| CN106229231A (en) * | 2016-08-11 | 2016-12-14 | 现代重工(中国)电气有限公司 | A kind of MCB miniature circuit breaker |
| CN108155500A (en) * | 2017-12-26 | 2018-06-12 | 上海航天科工电器研究院有限公司 | A kind of power connector of protection against electric shock structure |
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