CN105428169A

CN105428169A - Miniature circuit breaker

Info

Publication number: CN105428169A
Application number: CN201510884051.XA
Authority: CN
Inventors: 胡小青
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-02
Filing date: 2013-08-02
Publication date: 2016-03-23
Also published as: CN103367060B; CN103367060A

Abstract

The invention discloses a miniature circuit breaker, which comprises a miniature circuit breaker body and an electric opening and closing device, wherein the miniature circuit breaker body comprises a shell and a manual trigger for opening and closing; the electric opening and closing device comprises an insulating housing, a shifting handle and an electric mechanism; the electric opening and closing device drives the manual trigger to carry out opening and closing actions through the shifting handle; the electric mechanism comprises a motor with an output gear, a thumb wheel and a linkage gear assembly; the motor drives the thumb wheel to rotate in a reciprocating manner through the linkage gear assembly, so that the shifting handle is driven to rotate in the reciprocating manner through the thumb wheel; the thumb wheel is fixedly provided with a stirring plate; the outer side end of the stirring plate extends out of the insulating housing as the shifting handle; the linkage gear assembly comprises a primary gear and a secondary gear, which are coaxially arranged; the primary gear and the thumb wheel are circumferential gears with gear teeth on the overall external circumference; and the secondary gear is a sector gear of which only partial arc part is provided with the gear teeth on the overall external circumference. The miniature circuit breaker is relatively beautiful, relatively convenient to install and relatively convenient to use.

Description

A kind of miniature circuit breaker

The divisional application that the application is the applying date is " on August 2nd, 2013 ", application number is " 2013103355383 ", name is called the application for a patent for invention of " miniature circuit breaker ".

Technical field

The invention belongs to miniature circuit breaker structure-design technique field.

Background technology

Current miniature circuit breaker (such as the miniature circuit breaker of C45 type or DZ47 type), although in extensive use and domestic power circuit, due to the restriction of its small volume and self structure, is difficult to install electrodynamic type close/open machine additional.Also the miniature circuit breaker individually with electronic divide-shut brake function is had in the market, its structure has following two kinds: (1) is built in electronic close/open machine in miniature circuit breaker housing, also be namely arranged in same housing with the binding post in miniature circuit breaker, operating mechanism, overload flow protection mechanism, its structure is comparatively complicated, easily breaks down; In addition, because the market of current Miniature electric switch-on-off type circuit breaker is less, enterprise produces the Miniature electric switch-on-off type circuit breaker of this integral type, design brand-new structure, mould and production procedure, drops into larger; (2) external for electronic close/open machine on miniature circuit breaker housing exterior walls, such as air switch controller disclosed in patent documentation CN201302949Y; The shortcoming of this structure is that profile is ugly, in addition due to the miniature circuit breaker main flow of C45 type or DZ47 type adopting the guide tracked installation of DIN, its reserved installing space standardization, is generally difficult to meet the space requirement taken required for this outlet structure.

In addition, the guide tracked installation of DIN is the common a kind of mounting means of industrial electric element, and defines certain standard at the international level, supports that the electric component of this standard can be stuck in easily without the need to being screwed on guide rail, dismounting and safeguard also very convenient.The width of common guide rail is 35mm, some novel air switches as DZ47-63 series, contactor CJX1,2,8 series, circuit breaker DZ-108 series, miniature relay, portion of time relay etc. all have employed this standard.

Summary of the invention

The object of this invention is to provide a kind of profile comparatively attractive in appearance, install comparatively convenient, use comparatively for convenience of, there is the miniature circuit breaker of electronic divide-shut brake function.

The technical scheme realizing the object of the invention is:

The present invention is being arranged on motor drive mechanism in insulation crust, and make it have group handle stretching out insulation crust, and be arranged on that DIN on insulation crust is guide tracked clamps portion, in concrete practice, can insulation crust be made with the housing of adaptive miniature circuit breaker body onesize, make it can snap fitted to side by side on external DIN guide rail with miniature circuit breaker body, thus there is good looking appearance, installation facility, advantage easy to use.In addition because the electronic switching off/on device in the present invention and the split of miniature circuit breaker body are arranged, do not affect the manufacturing of original miniature circuit breaker, concerning enterprise, this electronic switching off/on device can be obtained by outsourcing or the mode manufactured separately, thus effectively reduce fund input, reduce integrated cost.

Accompanying drawing explanation

Fig. 1 is a kind of perspective view of the first structure of the present invention;

Fig. 2 is that miniature circuit breaker shown in Fig. 1 is from a kind of perspective view during another angle views;

Fig. 3 is a kind of perspective view of electronic switching off/on device in miniature circuit breaker shown in Fig. 1;

Fig. 4 is that electronic switching off/on device shown in Fig. 3 is from a kind of perspective view during another angle views;

Fig. 5 is a kind of decomposing schematic representation of electronic switching off/on device shown in Fig. 3;

Fig. 6 is a kind of decomposition texture schematic diagram of the second structure of the present invention.

Embodiment

(embodiment 1)

Fig. 1 to Fig. 5 shows the first embodiment of the present invention, and wherein Fig. 1 is a kind of perspective view of the first structure of the present invention; Fig. 2 is that miniature circuit breaker shown in Fig. 1 is from a kind of perspective view during another angle views; Fig. 3 is a kind of perspective view of electronic switching off/on device in miniature circuit breaker shown in Fig. 1; Fig. 4 is that electronic switching off/on device shown in Fig. 3 is from a kind of perspective view during another angle views; Fig. 5 is a kind of decomposing schematic representation of electronic switching off/on device shown in Fig. 3.

The present embodiment is a kind of miniature circuit breaker, sees shown in Fig. 1 to Fig. 5, comprises miniature circuit breaker body 1, and miniature circuit breaker body comprises housing 11, stretches out the manual trigger piece 12 of the divide-shut brake of housing and is arranged on the guide tracked clamping mechanism 13 of DIN on housing; Its design feature is: also comprise the electronic switching off/on device 2 for driving manual trigger piece to carry out divide-shut brake action; Electronic switching off/on device has insulation crust 3, stretch out dialling handle 4, dialling motor drive mechanism 5 that handle back and forth stirs for driving and be arranged on that DIN on insulation crust is guide tracked clamps portion 6 of insulation crust; The described group of handle is relative with the manual trigger piece on miniature circuit breaker body to be fixedly installed, and electronic switching off/on device is started dynamic trigger piece carry out divide-shut brake action by being dialled grip strip.

Motor drive mechanism in the present embodiment comprises motor 52, thumb wheel 53 and the interlock output gear and the linkage gear assembly 54 of thumb wheel with output gear 51, described motor drives thumb wheel reciprocating rotation by linkage gear assembly, and and then by thumb wheel drive dial handle reciprocating rotation, dial handle to be fixedly installed due to relative with manual trigger piece, thus drive manual trigger piece to carry out divide-shut brake action.Described thumb wheel is fixed with plate 55, the outboard end of this plate stretches out insulation crust as dialling handle.

In the present embodiment, described linkage gear assembly comprises master gear 541 and the pinion 542 of coaxial setting, master gear and thumb wheel are the circumference gears whole excircle being equipped with the gear teeth, pinion whole excircle only has partial arc place be just provided with the sector gear of the gear teeth, master gear engages with output gear and arranges, and pinion engages with thumb wheel and arranges.

If start rotary resistance less motor when adopting power-off, also namely less power can drive the motor drive mechanism reciprocating rotation under off-position, then the existence of this kind of electronic switching off/on device can not have influence on overload, the short-circuit protection tripping operation of miniature circuit breaker.

In addition; when the motor selecting resistance larger; also the power of i.e. miniature circuit breaker tripping operation can not driving electric mechanism reciprocating rotation; a bidirectional clutch 543 coaxially arranged with master gear, pinion then can also be set; when the existence of this bidirectional clutch can make motor forward/backward rotation move; all thumb wheel is driven to rotate by linkage gear assembly, again can under electric motor circuit breaking state, its group of handle can not hinder overload, the short-circuit protection tripping operation of miniature circuit breaker.

In the present embodiment, dial handle and be fixedly installed by a pin 7 is relative with manual trigger piece.

(embodiment 2)

Fig. 6 is a kind of decomposition texture schematic diagram of the second structure of the present invention, shows the second embodiment of the present invention.

The present embodiment is substantially the same manner as Example 1, and difference is: as shown in Figure 6, dials handle and is fixedly installed by a shackle member 8 is relative with manual trigger piece, and this shackle member comprises linkage part 81 and is set in the socket part 82 of dialling on handle and manual trigger piece.

Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.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 the need to also giving all execution modes.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.

Claims

1. a miniature circuit breaker, comprises miniature circuit breaker body (1), and miniature circuit breaker body comprises housing (11), stretches out the manual trigger piece of the divide-shut brake of housing (12) and is arranged on the guide tracked clamping mechanism of DIN (13) on housing; It is characterized in that: also comprise the electronic switching off/on device (2) for driving manual trigger piece to carry out divide-shut brake action; Electronic switching off/on device has insulation crust (3), stretch out dialling handle (4), dialling motor drive mechanism (5) that handle back and forth stirs for driving and be arranged on that DIN on insulation crust is guide tracked clamps portion (6) of insulation crust; The described group of handle is relative with the manual trigger piece on miniature circuit breaker body to be fixedly installed, and electronic switching off/on device is started dynamic trigger piece carry out divide-shut brake action by being dialled grip strip; Motor drive mechanism comprises motor (52), thumb wheel (53) and the interlock output gear and the linkage gear assembly (54) of thumb wheel with output gear (51), described motor drives thumb wheel reciprocating rotation by linkage gear assembly, and and then driven by thumb wheel and dial the center of rotation reciprocating rotation of handle around impeller; Described thumb wheel is fixed with plate (55), the outboard end of this plate stretches out insulation crust as dialling handle; Described linkage gear assembly comprises master gear (541) and the pinion (542) of coaxial setting, master gear and thumb wheel are the circumference gears whole excircle being equipped with the gear teeth, pinion whole excircle only has partial arc place be just provided with the sector gear of the gear teeth, master gear engages with output gear and arranges, and pinion engages with thumb wheel and arranges; Also comprise a bidirectional clutch coaxially arranged with master gear, pinion (543), when motor forward/backward rotation is moved, all thumb wheel is driven to rotate by linkage gear assembly, again can under electric motor circuit breaking state, its group of handle can not hinder overload, the short-circuit protection tripping operation of miniature circuit breaker; Dial handle and manual trigger piece to be fixedly installed by a pin (7) is relative, dial grip strip and start dynamic trigger piece and carry out divide-shut brake action; Dial handle to be fixedly installed by a shackle member (8) is relative with manual trigger piece, this shackle member comprises linkage part (81) and is set in the socket part (82) of dialling on handle and manual trigger piece.