CN203481169U

CN203481169U - A miniature breaker

Info

Publication number: CN203481169U
Application number: CN201320473052.1U
Authority: CN
Inventors: 胡小青
Original assignee: Yueqing Huazun Electric Co Ltd
Current assignee: QIXIAN POWER SUPPLY BUREAU; State Grid Corp of China SGCC; Kaifeng Power Supply Co of State Grid Henan Electric Power Co Ltd
Priority date: 2013-08-02
Filing date: 2013-08-02
Publication date: 2014-03-12
Anticipated expiration: 2023-08-02

Abstract

The utility model discloses a miniature breaker comprising a miniature breaker body and an electric brake switching device. The miniature breaker body comprises a housing and a brake-switching manual handle. The electric brake switching device comprises an insulating housing, a switching handle, and an electric mechanism. The electric brake switching device drives the manual handle to switch on or off a brake with the switching handle. A linkage gear assembly comprises a main gear fixedly disposed on a pin roll, an auxiliary gear slidably disposed on the pin roll, a coil disposed on the main gear, a magnet yoke disposed on the auxiliary gear, reset springs used for pushing the auxiliary gear toward a direction far away from the main gear, and rolling balls arranged between the main gear and the auxiliary gear. Multiple limiting holes arranged in parallel with the extending direction of the pin roll are disposed on the adjacent surface of the auxiliary gear adjacent to the main gear. The rolling balls are located at the opening ends of the limiting holes. Each reset spring is disposed in a corresponding limiting hole. The outer side of the reset springs abut against the rolling balls. The miniature breaker has attractive appearance and is easy to install and use.

Description

A kind of miniature circuit breaker

Technical field

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

Background technology

Miniature circuit breaker (for example miniature circuit breaker of C45 type or DZ47 type) is although in extensive use and supply line of family, due to the restriction of its small volume and self structure, be difficult to install additional electrodynamic type close/open machine at present.Also there is in the market the miniature circuit breaker individually with electronic divide-shut brake function, its structure has following two kinds: (1) is built in electronic close/open machine in miniature circuit breaker housing, also with miniature circuit breaker in binding post, operating mechanism, overload flow protection mechanism be arranged in same housing, its structure is comparatively complicated, easily breaks down; In addition, because the market compare little ， enterprise of current electronic opening and closing type miniature circuit breaker produces the electronic opening and closing type miniature circuit breaker of this integral type, design brand-new structure, mould and production procedure, drop into larger; (2) electronic close/open machine is external on miniature circuit breaker housing outer wall, the disclosed air switch controller of patent documentation CN201302949Y for example; The shortcoming of this structure is that profile is ugly, in miniature circuit breaker main flow due to C45 type or DZ47 type, adopt the guide tracked installation of DIN in addition, its standardization of reserved installing space, is generally difficult to meet the required space requirement taking of this outlet structure.

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

Utility model content

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

The technical scheme that realizes the utility model object is: a kind of miniature circuit breaker, comprise miniature circuit breaker body, and miniature circuit breaker body comprises housing and stretches out the manual trigger piece of divide-shut brake of housing; Its design feature is: also comprise for driving manual trigger piece to carry out the electronic switching off/on device of divide-shut brake action; Electronic switching off/on device has insulation crust, stretches out dialling handle and dialling for driving the motor drive mechanism that handle is back and forth stirred of insulation crust; The described group of handle and relative being fixedly installed of manual trigger piece on miniature circuit breaker body, electronic switching off/on device drives manual trigger piece to carry out divide-shut brake action by dialling handle; Motor drive mechanism comprises the linkage gear assembly of motor, thumb wheel and interlock output gear and the thumb wheel with output gear, described motor drives thumb wheel reciprocating rotation by linkage gear assembly, and and then by thumb wheel, drive and dial handle reciprocating rotation, dial handle and be fixedly installed due to relative with manual trigger piece, thereby drive manual trigger piece to carry out divide-shut brake action.On described thumb wheel, be fixed with plate, the outboard end of this plate stretches out insulation crust as dialling handle; Described linkage gear assembly comprises the master gear that is fixedly installed on bearing pin, be slidably arranged in pinion on bearing pin, be arranged on coil on master gear, be arranged on yoke on pinion, for back-moving spring that pinion is pushed away towards the direction away from master gear, be arranged on the ball between master gear and pinion; The adjacent surface in abutting connection with pinion of master gear is provided with a plurality of spacing holes that be arranged in parallel with bearing pin bearing of trend, ball is positioned at the openend of spacing hole, each back-moving spring is arranged in a corresponding spacing hole, its outboard end is connected on ball, and makes ball protrude from master gear for the adjacent surface in abutting connection with pinion; After coil electricity, adsorb yoke, thereby overcome the elastic force of back-moving spring, drive pinion to be connected on the adjacent surface of master gear, now master gear drives pinion to rotate by the effect of frictional force, and then drives thumb wheel to rotate.

The utility model is being arranged on motor drive mechanism in insulation crust, and make it have the handle of dialling that stretches out insulation crust, in concrete practice, can insulation crust be made with the housing of adaptive miniature circuit breaker body onesize, it can be snapped fitted on external DIN guide rail side by side with miniature circuit breaker body, thereby there is good looking appearance, installation facility, easy to use.In addition due to the electronic switching off/on device in the utility model and miniature circuit breaker body split setting, do not affect the manufacturing of original miniature circuit breaker, concerning enterprise, can obtain this electronic switching off/on device by outsourcing or the mode of manufacturing separately, thereby effectively reduce fund input, reduce integrated cost.

Accompanying drawing explanation

Fig. 1 is a kind of perspective view of the utility model the first structure;

A kind of perspective view of Fig. 2 when to be miniature circuit breaker shown in Fig. 1 observe from another angle;

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

A kind of perspective view of Fig. 4 when to be electronic switching off/on device shown in Fig. 3 observe from another angle;

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 structural representation of linkage gear assembly in electronic switching off/on device shown in Fig. 3;

Fig. 7 is a kind of decomposing schematic representation of the utility model the second structure.

Embodiment

(embodiment 1)

Fig. 1 to Fig. 6 has shown the first embodiment of the present utility model, and wherein Fig. 1 is a kind of perspective view of the utility model the first structure; A kind of perspective view of Fig. 2 when to be miniature circuit breaker shown in Fig. 1 observe from another angle; Fig. 3 is a kind of perspective view of electronic switching off/on device in miniature circuit breaker shown in Fig. 1; A kind of perspective view of Fig. 4 when to be electronic switching off/on device shown in Fig. 3 observe from another angle; 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 structural representation of linkage gear assembly in 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. 6, comprises miniature circuit breaker body 1, and the divide-shut brake that miniature circuit breaker body comprises housing 11, stretch out housing is with manual trigger piece 12 and be arranged on the guide tracked clamping mechanism 13 of DIN on housing; Its design feature is: also comprise for driving manual trigger piece to carry out the electronic switching off/on device 2 of divide-shut brake action; Electronic switching off/on device has insulation crust 3, stretch out dialling handle 4, dialling the motor drive mechanism 5 that handle back and forth stirs and be arranged on the guide tracked portion 6 that clamps of DIN on insulation crust for driving of insulation crust; The described group of handle and relative being fixedly installed of manual trigger piece on miniature circuit breaker body, electronic switching off/on device drives manual trigger piece to carry out divide-shut brake action by dialling handle.

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

Described linkage gear assembly comprises the master gear 541 that is fixedly installed on bearing pin 544, be slidably arranged in pinion 542 on bearing pin, be arranged on coil 545 on master gear, be arranged on yoke 546 on pinion, for back-moving spring 547 that pinion is pushed away towards the direction away from master gear, be arranged on the ball 548 between master gear and pinion; The adjacent surface 5411 in abutting connection with pinion of master gear is provided with a plurality of spacing holes 549 that be arranged in parallel with bearing pin bearing of trend, ball is positioned at the openend of spacing hole, each back-moving spring is arranged in a corresponding spacing hole, its outboard end is connected on ball, and makes ball protrude from master gear for the adjacent surface in abutting connection with pinion; After coil electricity, adsorb yoke, thereby overcome the elastic force of back-moving spring, drive pinion to be connected on the adjacent surface of master gear, now master gear drives pinion to rotate by the effect of frictional force, and then drives thumb wheel to rotate.

In the present embodiment, the two ends of spacing hole are respectively provided with a screw plug 100, for preventing that ball and back-moving spring from dropping out.

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 the present embodiment, pin 7 is relative is fixedly installed by one to dial handle and manual trigger piece.

(embodiment 2)

Fig. 7 is a kind of decomposing schematic representation of the utility model the second structure, has shown the second embodiment of the present utility model.

The present embodiment is substantially the same manner as Example 1, and difference is: as shown in Figure 7, dial handle and manually trigger piece shackle member 8 is relative is fixedly installed by one, this shackle member comprises linkage part 81 and is set in the socket part 82 of dialling on handle and manual trigger piece.

Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.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 these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.

Claims

1. a miniature circuit breaker, comprises miniature circuit breaker body (1), and miniature circuit breaker body comprises housing (11) and stretches out the manual trigger piece for divide-shut brake (12) of housing; It is characterized in that: also comprise for driving manual trigger piece to carry out the electronic switching off/on device (2) of divide-shut brake action; Electronic switching off/on device has insulation crust (3), stretches out dialling handle (4) and dialling for driving the motor drive mechanism (5) that handle is back and forth stirred of insulation crust; The described group of handle and relative being fixedly installed of manual trigger piece on miniature circuit breaker body, electronic switching off/on device drives manual trigger piece to carry out divide-shut brake action by dialling handle; Motor drive mechanism comprises the have output gear motor (52), thumb wheel (53) of (51) and the linkage gear assembly (54) of interlock output gear and thumb wheel, described motor drives thumb wheel reciprocating rotation by linkage gear assembly, and and then by thumb wheel, drive and dial handle reciprocating rotation, dialling handle is fixedly installed due to relative with manual trigger piece, thereby drive manual trigger piece to carry out divide-shut brake action, on described thumb wheel, be fixed with plate (55), the outboard end of this plate stretches out insulation crust as dialling handle; Described linkage gear assembly comprises the master gear (541) that is fixedly installed on bearing pin (544), be slidably arranged in pinion (542) on bearing pin, be arranged on coil (545) on master gear, be arranged on yoke (546) on pinion, for back-moving spring (547) that pinion is pushed away towards the direction away from master gear, be arranged on the ball (548) between master gear and pinion; The adjacent surface in abutting connection with pinion of master gear (5411) is provided with a plurality of spacing holes (549) that be arranged in parallel with bearing pin bearing of trend, ball is positioned at the openend of spacing hole, each back-moving spring is arranged in a corresponding spacing hole, its outboard end is connected on ball, and makes ball protrude from master gear for the adjacent surface in abutting connection with pinion; After coil electricity, adsorb yoke, thereby overcome the elastic force of back-moving spring, drive pinion to be connected on the adjacent surface of master gear, now master gear drives pinion to rotate by the effect of frictional force, and then drives thumb wheel to rotate.