CN107818892A

CN107818892A - A kind of miniature circuit breaker and its handle drive connection component and closing switch method

Info

Publication number: CN107818892A
Application number: CN201610847743.1A
Authority: CN
Inventors: 范国平
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-09-12
Filing date: 2016-09-23
Publication date: 2018-03-20
Also published as: CN206148377U

Abstract

The present invention discloses a kind of miniature circuit breaker and its handle drive connection component and closing switch method, and handle drive connection component includes Handleset and drive connection component.Handleset includes handle and the hook being rotatably connected on handle, open position and closing position when handle can rotate and have initial, and hook has opening；Drive connection component includes crank axle and the drivening piece being connected on crank axle, and hook is pressed on crank axle by an elastic component；When need to close a floodgate, drive component drives crank axle and drivening piece to rotate, and drivening piece drives hook to move together after turning into opening, and hook moves and turns to closing position with fixed handle.The present invention is compact-sized, occupies little space, it is ensured that miniature circuit breaker appearance and size meets specification needs.

Description

A kind of miniature circuit breaker and its handle drive connection component and closing switch method

Technical field

The present invention relates to a kind of miniature circuit breaker, is that the handle transmission being related in a kind of miniature circuit breaker connects specifically Connected components.

The invention further relates to a kind of closing switch method of miniature circuit breaker.

Background technology

Miniature circuit breaker is most popular a kind of terminal protection electrical equipment during building electrical terminal power distribution equipment is drawn.It is miniature Breaker is made up of close/open machine, contact portion, protection device, arc quenching system etc..Its operation principle is：Utilize protection device (electrical apparatus release) and electrical current heat component realize overload and short-circuit protection, when the electric current that the coil in electrical current heat component passes through is more than setting Current value when, magnetictrip dynamic iron core action, promote strike bar hit operating mechanism, unlock operating mechanism, make to break Road device separating brake and then disconnecting circuit, so as to realize overload and short-circuit protection to circuit.After fault is discharged, then by dividing Switching-on mechanism carries out closing operation so as to connect circuit.At present, most miniature circuit breakers that China uses now are manual point Combined floodgate formula, manually stir close/open machine can and make-break operation is carried out to circuit.Manual divide-shut brake formula miniature circuit breaker It is simple in construction, cost is cheap and does not need extra electric energy, thus divide-shut brake behaviour can be carried out in the case of without electric energy Make, be widely used in old power network.

But with the development of science and technology, intelligent appliance has obtained more and more extensive application, as protection electrical equipment Common miniature circuit breaker, also it is badly in need of installing intelligence control system additional.In order to common miniature disconnected with wide variety of manual divide-shut brake formula Road device matches, now, mainly newly-increased one of common miniature circuit breaker side can with the intelligent micro-circuit breaker of remote control, Intelligent miniature circuit breaker drives other common miniature circuit breakers to carry out breaking-closing operating according to input control signal.

《The external Circuit breaker technology specification of electric energy meter》In strict specification carried out to the appearance and size of breaker limited, its In, restriction intelligent micro-circuit breaker is consistent with the outer shape and size of common miniature circuit breaker, to ensure the consistent of outward appearance Property, and the convenient large-scale circuit breaker terminal equipment replacement of progress.

But the intelligent micro-circuit breaker of prior art, due to adding intelligent controlling device, its size is typically than common Miniature circuit breaker size is big, also inconsistent in profile, can not directly use, and the basis first to placing miniature circuit breaker is needed before use Equipment carries out adaptability reform, and early investment is big, long in time limit, is unfavorable for intelligent grid and promotes process.

Intelligent micro-circuit breaker normally only has the function of Electronic control in the prior art, such as notification number is CN205004283U Chinese utility model patent, but closing by hand control can not be carried out, have and use upper limitation.

The content of the invention

Present invention aim to address existing intelligent micro-circuit breaker it is oversized the problem of, there is provided a kind of transmission of handle Connection component and the miniature circuit breaker for including handle drive connection component.

It is a further object of the present invention to provide a kind of closing switch method of miniature circuit breaker.

To achieve these goals, handle of the invention drive connection component, is connected in a miniature circuit breaker, described micro- Type breaker includes drive component, wherein, the handle drive connection component includes：

Handleset, including handle and the hook that is rotatably connected on the handle, the handle can be rotated and had Open position and closing position when initial, the hook have opening；And

Be connected component, including crank axle and the drivening piece that is connected on the crank axle, the hook pass through a bullet Property part is pressed on the crank axle；

When need to close a floodgate, the drive component drives the crank axle and drivening piece to rotate, and the drivening piece turns to entrance The hook is driven to move together after the opening, the hook moves and drives the handle to turn to closing position.

In one embodiment of above-mentioned handle drive connection component, the crank axle has crank pit, and the hook is pressed Tightly on the crank pit.

In one embodiment of above-mentioned handle drive connection component, the crank axle has symmetrically arranged first connector With the second connector, there is space to form the crank pit, the drive between first connector and the second connector Part is connected between first connector and second connector.

In one embodiment of above-mentioned handle drive connection component, the hook includes the first side and the second side, the bullet Property part compresses first side so that second side is pressed on the crank axle, and first side is in arc line shaped, described to open Mouth is located at second side.

In one embodiment of above-mentioned handle drive connection component, second side has the first pressure section, and described first Pressure section is located on the opening, and before the drivening piece enters the opening, first pressure section is pressed on described On crank axle.

In one embodiment of above-mentioned handle drive connection component, second side has the second pressure section, and described second Pressure section is located under the opening, after the drivening piece drives the handle to turn to closing position by the hook, institute State drivening piece and depart from the opening, second pressure section is pressed on the crank axle.

In one embodiment of above-mentioned handle drive connection component, the drive connection component also includes gear and gear Axle, the gear are connected on the gear shaft, and the crank axle is connected on the gear, described in the drive component driving Pinion rotation.

In one embodiment of above-mentioned handle drive connection component, the handle is connected on a rib axle, and the handle turns It is dynamic to drive the rib axle to rotate.

In one embodiment of above-mentioned handle drive connection component, in open position, the pivot center of the hook is less than The pivot center of the handle, the pivot center of the crank axle are less than the pivot center of the hook, and the opening is less than institute State the pivot center of crank axle；In closing position, the pivot center of the hook is higher than the pivot center of the handle, described to open Mouth is higher than the pivot center of the crank axle.

The miniature circuit breaker of the present invention, including drive component and handle drive connection component, it is characterised in that the handle Component be connected as above-mentioned handle drive connection component.

The closing switch method of the miniature circuit breaker of the present invention, closed a floodgate using above-mentioned handle drive connection component, including Following steps：

S100, handle is located at open position when initial, and hook is pressed on crank axle by elastic component；

S200, after crankshaft rotation is so that drivening piece mutually mounts with opening, hook is driven while crank axle is rotated further Move up, hook tape fixed handle turns to closing position；

S300, crankshaft rotation make drivening piece depart from opening.

In one embodiment of above-mentioned closing switch method, in the step S100, elastic component is by the portion on the opening of hook Divide and be pressed on crank axle；In the step S300, elastic component is by the portion compresses under the opening of hook on crank axle.

In one embodiment of above-mentioned closing switch method, also include in the step S100：Before combined floodgate, the rotation of hook is set Axis is less than the pivot center of handle, and opening is less than the pivot center of crank axle, and the pivot center of crank axle turns less than hook Shaft line.

In one embodiment of above-mentioned closing switch method, in the step S300, after combined floodgate, the pivot center of hook is higher than hand The pivot center of handle, pivot center of the opening higher than crank axle.

The beneficial functional of the present invention is, company is driven using the handle drive connection component of the present invention and including the handle The miniature circuit breaker of connected components, it is compact-sized, occupy little space, it is ensured that miniature circuit breaker appearance and size meets specification needs, closes Lock method is reliable.

Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.

Brief description of the drawings

Fig. 1 is the decomposition chart of the handle drive connection component of the present invention；

Fig. 2 is the handle of the handle drive connection component of the present invention in the combination assumption diagram (one) of open position；

Fig. 3 is the handle of the handle drive connection component of the present invention in the combination assumption diagram (two) of open position；

Fig. 4 is the handle of the handle drive connection component of the present invention in the combination assumption diagram (one) of closing position；

Fig. 5 is the handle of the handle drive connection component of the present invention in the combination assumption diagram (two) of closing position；

Fig. 6 is the three-dimensional structure diagram of the handle drive connection component of the present invention；

Fig. 7 is the three-dimensional structure diagram of the hook of the handle drive connection component of the present invention.

Wherein, reference

300 handles drive connection component

310 Handlesets

311 handles

311a rib axis holes

312 hooks

312a is open

The sides of 312b first

The sides of 312c second

The pressure sections of 312c1 first

The pressure sections of 312c2 second

313 pins

314 rib axles

320 drive connection components

321 crank axles

321a crank pits

321b crank spindle bodies

The connectors of 321c first

The connectors of 321d second

322 drivening pieces

323 gears

324 gear shafts

330 elastic components

Embodiment

Technical solution of the present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings, to be further understood that The purpose of the present invention, scheme and effect, but it is not intended as the limitation of scope of the appended claims of the present invention.

As shown in Figures 1 to 6, handle of the invention drive connection component 300 is connected in miniature circuit breaker, miniature open circuit Device includes drive component.

Handle drive connection component 300 includes Handleset 310, drive connection component 320 and elastic component 330.Handle group Part 310 includes handle 311 and hook 312, and hook 312 is rotatably connected on handle 311.Handle 311 can rotate and with just Open position and closing position during the beginning, hook 312 have opening 312a.

Drive connection component 320 includes crank axle 321 and drivening piece 322, and drivening piece 322 is connected on crank axle 321, hangs Hook 312 is pressed on crank axle 321 by elastic component 330.

Opening 312a on hook 312 is used to be affiliated to the phase of drivening piece 322, and crank axle 321 is when rotating, crank axle 321 On drivening piece 322 with hook 312 upper shed 312a coordinate drive hook 312 movement；Drivening piece 322 on crank axle 321 with Hook 312 is mounting.

When initial, handle 311 is located at open position, as shown in Figures 2 and 3, now, link up with 312 rotational axis x 1 it is low In the rotational axis x 2 of handle 311, the rotational axis x 3 of crank axle 321 is linked up with 312 less than the rotational axis x 1 of hook 312 Opening 312a be less than crank axle 321 rotational axis x 3.

When need to close a floodgate, as described in Fig. 4 and Fig. 5, drive component drives crank axle 321 and drivening piece 322 to rotate, drivening piece 322 turn into the opening 312a of hook 312 after drive hook 312 to move together, the motion of hook 312 and with fixed handle 311 Turn to closing position.

In closing position, the rotational axis x 1 for linking up with 312 is higher than the rotational axis x 2 of handle 311, the opening on hook 312 312a is higher than the rotational axis x 3 of crank axle 321.

As shown in figure 1, hook 312 can be fixed on handle 311 by pin 313, hook 312 can rotate around pin 313.

Crank axle 321 has crank pit 321a, and elastic component 330 is, for example, a spring, and hook 312 is pressed by the thrust of spring Tightly in the crank pit 321a of crank axle 321.

Specifically, as shown in figure 1, crank axle 321 has crank spindle body 321b, the first connector 321c and the second connection Body 321d, the first connector 321c and the second connector 321d are connected on crank spindle body 321b and are symmetrical arranged, and first connects There is space to form crank pit 321a between junctor 321c and the second connector 321d.Wherein, the first connector 321c and Two connector 321d one end extends laterally, and drivening piece 322 is connected to the first connector 321c and the second connector 322d The end extended laterally between.

Drivening piece 322 is for example with pin connection part, the first connector 321c and the second connector 322d extension laterally End there is connecting hole respectively, drivening piece 322 is connected on the two connecting holes.Therefore, drivening piece 322, which is formed, is located at crank The groove 321a axis body for being used to mount with the opening 312a phases of hook 312.

As shown in Fig. 1 and Fig. 6, Fig. 7, hook 312 also includes the first side 312b and the second side 312c, elastic component 330 compress First side 312b of hook 312 is so that the second side 312c is pressed on the crank pit 321a of crank axle 321.The first of hook 312 Side 312b is in arc line shaped, and opening 312a is located at the second side 312c middle part.

Wherein, the second side 312c for linking up with 312 has the first pressure section 312c1 and the second pressure section 312c2, and first compresses Portion 312c1 is located on opening 312a, and the second pressure section 312c2 is located under opening 312a.It is preferred that the first of hook 312 Pressure section 312c1 is in inner circle arc, and the second pressure section 312c2 is linear.

Before drivening piece 322 enters the opening 312a of hook 312, i.e., before drivening piece 322 mounts with 312 phases of hook, First pressure section 312c1 is pressed on crank axle 321.Drivening piece 322 turns to closing position by the band fixed handle 311 of hook 312 Postpone, the second pressure section 312c2 is pressed on crank axle 321, and drivening piece 322 departs from the opening 312a of hook 312.

Drive connection component 320 also includes gear 323 and gear shaft 324, and gear 323 is connected on gear shaft 324, crank Axle 321 is connected on gear 323, and drive component drive gear 323 rotates, so as to which gear 323 drives crank axle 321 and gear Axle 324 rotates.Wherein, crank axle 321 is coaxial with gear 323 and the mode that can rivet is connected, and can also use other connections certainly Mode.

In addition, as shown in figures 1 to 6, Handleset 310 also includes rib axle 314, handle 311 has transversal with rib axle 314 The rib axis hole 311a that face is adapted, rib axle 314 passes through the rib axis hole 311a of handle 311, by drive lip axle when handle 311 rotates 314 coaxially rotate in same direction.In the present embodiment, rib axle 314 is Axis Tripod, and the centre of handle 311 is in triangular shape, with triangle Axle coordinates.Rib axle 314 and rib axis hole 311a can also use other non-rotating shapes.

To sum up, the course of work of the handle drive connection component 300 of miniature circuit breaker of the invention is as follows：

As shown in Figure 1, Figure 2 and Figure 3, gear 323 engages with the power gear of the drive component of miniature circuit breaker, now, The the first pressure section 312c1 for linking up with 312 is pressed on the crank pit 321a of crank axle 321 by elastic component 330.Hook 312 turns Shaft line X1, the i.e. axial line of pin 313 are less than the rotational axis x 2 of handle 311, and the rotational axis x 3 of crank axle 321 is less than extension The rotational axis x 1 of hook 312, link up with 312 opening 312a be less than crank axle 321 rotational axis x 3, crank axle 321, hook 312nd, pin 313 and elastic component 330 be in the same plane.

The power teeth wheeling driving gear 323 of miniature circuit breaker rotates clockwise, and gear 323 drives crank axle 321 clockwise Rotate, crank axle 321 rotates clockwise certain angle.As shown in Figure 4 and Figure 5, the drivening piece 322 on crank axle axle 321 is with hanging Hook 312 mounts under the thrust of elastic component 330 with opening 312a, and 312 stress of hook move up, hook 312 and pin 313 coordinate the band fixed handle 311 in the presence of thrust to rotate counterclockwise, and drive lip axle 314 rotates while handle 311 rotates. When hook 312 moves a certain distance, when the axis of drivening piece 322 is higher than the rotational axis x 2 of handle 311, that is, 312 openings are linked up with 312a is higher than the rotational axis x 2 of handle 311, and the end for linking up with 312 the second pressure section 312c2 is limited by crank axle 321 and made Drivening piece 322 departs from opening 312a, and now handle 311 reaches closing position, closing success.

Gear 323 drives crank axle 321 to be rotated further, and drivening piece 322 is separated with the opening 312a on hook 312.

The closing switch method of the miniature circuit breaker of the present invention comprises the following steps：

S100, handle 311 is located at open position when initial, and elastic component 330 is pressed on linking up with 312 on crank axle 321；

S200, after crank axle 321 rotates so that drivening piece 322 mounts with opening 312a phases, what crank axle 321 was rotated further Drivening piece 322 drives hook 312a to move up simultaneously, and the band fixed handle 311 of hook 312 turns to closing position；

S300, crank axle 321, which rotates, makes drivening piece 322 depart from the opening 312a on hook 312.

In step S100, elastic component 330 is by the portion compresses on the opening 312a of hook 312 on crank axle 321；Step In rapid S300, elastic component 330 is by the portion compresses under the opening 312a of hook 312 on crank axle 321.

Also include in step S100：Before combined floodgate, set the pivot center of hook 312 to be less than the pivot center of handle 311, open Mouth 312a is less than the pivot center of crank axle 321, and the pivot center of crank axle 321 is less than the pivot center for linking up with 312.

In step S300, after combined floodgate, link up with 312 pivot center be higher than handle 311 pivot center, opening 312a be higher than The pivot center of crank axle 321.

During closing by hand, only need to shift handle 311 onto closing position manually.During automatic closing, due to power motor In failure (or power failure) making process, stop suddenly, now can the manual arrival of driving handle 311 closing position.

The stable transmission of the present invention, you can adapt to closing by hand, be suitable for automatic closing again.During electric switch-on not Influence closing by hand；After in-place closing, motor transmission part completely disengages with handle portion and is driven the relation coupled.

Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence Know those skilled in the art when can be made according to the present invention it is various it is corresponding change and deformation, but these corresponding change and become Shape should all belong to the protection domain of appended claims of the invention.

Claims

The component 1. a kind of handle is connected, is connected in a miniature circuit breaker, and the miniature circuit breaker includes drive component, its It is characterised by, the handle drive connection component includes：

Handleset, including handle and the hook that is rotatably connected on the handle, the handle can rotate and with initial When open position and closing position, the hook has opening；And

Be connected component, including crank axle and the drivening piece that is connected on the crank axle, the hook pass through an elastic component It is pressed on the crank axle；

When need to close a floodgate, the drive component drives the crank axle and drivening piece to rotate, and the drivening piece is turned to described in entrance The hook is driven to move together after opening, the hook moves and drives the handle to turn to closing position.
The component 2. handle according to claim 1 is connected, it is characterised in that the crank axle has crank pit, institute Hook is stated to be pressed on the crank pit.
The component 3. handle according to claim 2 is connected, it is characterised in that the crank axle has symmetrically arranged First connector and the second connector, there is space to form the crank between first connector and the second connector Groove, the drivening piece are connected between first connector and second connector.
The component 4. handle according to claim 1 is connected, it is characterised in that the hook includes the first side and second Side, the elastic component compress first side so that second side is pressed on the crank axle, and first side is in camber line Shape, the opening are located at second side.
The component 5. handle according to claim 4 is connected, it is characterised in that second side has first to compress Portion, first pressure section are located on the opening, before the drivening piece enters the opening, first pressure section It is pressed on the crank axle.
The component 6. handle according to claim 4 is connected, it is characterised in that second side has second to compress Portion, second pressure section are located under the opening, and the drivening piece drives the handle to turn to conjunction by the hook After gate position, the drivening piece departs from the opening, and second pressure section is pressed on the crank axle.
The component 7. handle according to claim 1 is connected, it is characterised in that the drive connection component also includes tooth Wheel and gear shaft, the gear are connected on the gear shaft, and the crank axle is connected on the gear, the drive component Drive the pinion rotation.
The component 8. handle according to claim 1 is connected, it is characterised in that the handle is connected on a rib axle, The handle, which rotates, drives the rib axle to rotate.
The component 9. handle according to claim 1 is connected, it is characterised in that in open position, the hook turns Shaft line is less than the pivot center of the handle, and the pivot center of the crank axle is less than the pivot center of the hook, described Pivot center of the opening less than the crank axle；In closing position, the pivot center of the hook is higher than the rotation of the handle Axis, pivot center of the opening higher than the crank axle.
10. a kind of miniature circuit breaker, including drive component and handle drive connection component, it is characterised in that the handle transmission Connection component is the handle drive connection component described in any one of claim 1 to 9.
11. a kind of closing switch method of miniature circuit breaker, it is characterised in that passed using the handle described in any one of claim 1 to 9 Dynamic connection component is closed a floodgate, and is comprised the following steps：

S100, handle is located at open position when initial, and hook is pressed on crank axle by elastic component；

S200, after crankshaft rotation is so that drivening piece mutually mounts with opening, hook is driven to move up while crank axle is rotated further, Hook tape fixed handle turns to closing position；

S300, crankshaft rotation make drivening piece depart from opening.
12. closing switch method according to claim 11, it is characterised in that in the step S100, elastic component is by hook Portion compresses on opening are on crank axle；In the step S300, elastic component is by the portion compresses under the opening of hook On crank axle.
13. closing switch method according to claim 11, it is characterised in that also include in the step S100：Before combined floodgate, if The pivot center for putting hook is less than the pivot center of handle, and opening is less than the pivot center of crank axle, the pivot center of crank axle Less than the pivot center of hook.
14. closing switch method according to claim 13, it is characterised in that in the step S300, after combined floodgate, hook turns Shaft line is higher than the pivot center of handle, pivot center of the opening higher than crank axle.