CN209447754U - A kind of durable mold cased circuit breaker - Google Patents

Abstract

The utility model provides a kind of durable mold cased circuit breaker, it is related to electric wiring field, including shell, the reaction zone that the shell is successively arranged arc extinguishing area from top to bottom, is isolated with arc extinguishing area by partition, it is fixed with the fixing axle that both ends are fixedly connected with reaction zone two sides respectively in the reaction zone, the axle sleeve being rotatablely connected with it is fixed in the fixing axle, is fixed with spanner on the outside of the axle sleeve, it is inconsistent with balladeur train on the left of the axle sleeve, grab is fixed on the right side of the axle sleeve.In the utility model, it can make only to relatively rotate between axle sleeve and fixing axle by axle sleeve and fixed axis connection, by axle sleeve with balladeur train is inconsistent makes breaker electrifying, it is connect by grab with relay system, axle sleeve position can be made to be kept fixed, connection type is simply secured, improves the service life of breaker.

Description

A kind of durable mold cased circuit breaker

Technical field

The utility model relates to electric wiring field more particularly to a kind of durable mold cased circuit breakers.

Background technique

Breaker is the electric current referred to close, carry and cut-off under normal loop condition and can close before the deadline Close, carry and cut-off the switching device of the electric current under abnormal loop condition.Breaker is divided into high-voltage circuitbreaker by its use scope With low-voltage circuit breaker, high-low pressure identification of boundaries is relatively fuzzyyer, 3kV or more is generally known as High-Voltage Electrical Appliances, breaker can be used to Electric energy is distributed, asynchronous motor is infrequently started, the implementations such as power circuit and motor are protected, when their generations are serious When overload or short circuit and the failures such as under-voltage can automatic shutdown circuit, function is equivalent to Fuse switch and crosses underheat relay The combination of device etc..And change components are not needed generally after disjunction fault current.Currently, had been widely used, Breaker can be divided into omnipotent breaker and mold cased circuit breaker according to textural classification, mold cased circuit breaker is electrical equipment industry Important component, and have been obtained and be widely applied.When circuit is working properly, mold cased circuit breaker can be by closing The circuit of supply electric energy is closed or disconnects, to reach the functions such as power failure, power supply and conversion circuit.With the development of industry, user couple More stringent requirements are proposed for the miniaturization of the breaking capacity and mold cased circuit breaker volume of low-voltage distribution system, however existing modeling The conducting system of shell type breaker can generate a large amount of electric arcs and heat in breaking course, only lean on the arc-chutes of mold cased circuit breaker Electric arc can not quickly be extinguished, cause a large amount of electric arcs and heat inside mold cased circuit breaker that cannot extinguish and dissipate in time Hair so that structure of contact terminal occurs melting and generating a large amount of slags, the long operating mechanism failure that will result in mold cased circuit breaker Switch is caused to be unable to action message, risk is larger and there are security risks.

07503900 U of Patent No. CN discloses a kind of mold cased circuit breaker, is additionally provided with production gas in the shell of breaker Part, the production gas part include that two the first side plates, two the second side plates and U-shaped bottom plate, the one of the bottom plate are placed on quiet On contact, the arc extinguishing grid pieces of the other side and arc-chutes bottom of bottom plate are oppositely arranged, and two -- side plate is separately positioned on bottom plate Open end and be connected respectively with two the second side plates, and two first: side plate is respectively positioned on arc-chutes and contact supports it Between and arc extinguishing grid pieces are blocked, second side plate is located in the arc extinguishing notch of arc extinguishing grid pieces and is arranged with moving contact interval. By increasing the production gas part being oppositely arranged with arc-chutes in shell, so that the breaking capacity of breaker is improved, meanwhile, pass through Gas part, which will be produced, can stop extra electric arc and slag to enter in the other structures and conducting system of shell, and have enough spaces Electric arc is allowed to enter in 3 arc grid of going out.

But due to existing mold cased circuit breaker open circuit reaction part connected using line and spanner and circuit breaker internal without The mode being fixedly connected is easy to damage connecting component, breaker is caused to damage in the case where breaker is frequently opened and closed repeatedly.

Utility model content

The purpose of this utility model is to provide a kind of durable mold cased circuit breakers, to solve the above technical problems.

The utility model using following technical scheme in order to solve the above technical problems, realized: a kind of durable plastic shell is disconnected Road device, including shell, the reaction zone that the shell is successively arranged arc extinguishing area from top to bottom, is isolated with arc extinguishing area by partition, institute It states and is fixed with the fixing axle that both ends are fixedly connected with reaction zone two sides respectively in reaction zone, be fixed with and its turn in the fixing axle The axle sleeve of dynamic connection, the axle sleeve outside are fixed with spanner, and the axle sleeve left side is inconsistent with balladeur train, fixed on the right side of the axle sleeve There are grab, the grab hook joint that the grab and rotating plate one end are fixed, the rotating plate other end and reaction zone two sides are rotatablely connected, The rotating plate bottom end is fixed with iron block, is located in reaction zone below the iron block and is equipped with electromagnet, the electromagnet and socket electricity Property connection, by the movement of the controllable balladeur train of rotation of axle sleeve, balladeur train is mobile to enable breaker conduction that electromagnet to be made to generate magnetic Property to iron block generate adsorption capacity, so as to make spanner be maintained at fixed position.

Preferably, the balladeur train includes two slide bars for passing through partition, and the slide bar left end is fixedly connected with connecting plate, institute It is fixed there are two the plug being electrically connected, the plug and socket grafting to state connecting plate left end, is equipped between the slide bar right part Baffle, the baffle middle part are slidably connected with slide-bar fixed on partition, are cased between partition and baffle on the slide-bar Compressed spring makes to be connected between two sockets, achievees the purpose that make breaker electrifying by the plug on slide bar with socket grafting, By compressed spring and baffle fit make balladeur train in the case where not by external force with socket mutually from keeping open circuit.

Preferably, described two slide bars are parallel to each other, and are located on partition and are equipped with sealing shroud, the socket with slide bar junction It is conducted with external connection terminals, is connected respectively by connecting plate, baffle between two slide bars, make to keep flat between slide bar and partition Row movement can avoid the slag for reacting generation in arc-chutes with the junction of slide bar setting sealing shroud on partition and gas enter Other regions in breaker.

It preferably, is the hollow ring being rotatablely connected with fixing axle on the inside of the axle sleeve, left part is cam-like on the outside of axle sleeve, The grab section connected on the right side of the axle sleeve is isosceles triangle and, external axle sleeve for cam-like identical as the grab on rotating plate Can be relatively rotated with fixing axle simultaneously left side can with balladeur train is inconsistent keeps balladeur train mobile, while the grab movement on the right side of axle sleeve makes Rotating plate rotation, iron block attracts each other with magnet fixes rotating plate, so that axle sleeve be made to be kept fixed.

Preferably, the internal diameter of the axle sleeve is equal with fixed shaft diameter, and the axial length of axle sleeve and the axial length of fixing axle are equal, with The axle sleeve that fixing axle matches rotates in fixing axle, can avoid occurring to damage breaker with respect to offset with fixing axle.

Preferably, the iron core of the electromagnet is made of silicon steel material, and electromagnet made of silicon steel material has when being powered Magnetism, magnetic just disappears therewith after power-off.

The beneficial effects of the utility model are:

In the utility model, it can make only to relatively rotate between axle sleeve and fixing axle by axle sleeve and fixed axis connection, lead to It crosses axle sleeve and balladeur train is inconsistent makes breaker electrifying, connect by grab with relay system, axle sleeve position can be made to be kept fixed, Connection type is simply secured, improves the service life of breaker；Breaker electrifying can be made by being connect by balladeur train with socket, be passed through Socket can be such that shaft is kept fixed with relay system electric connection, so that breaker be made to be maintained at working condition, opening and closing reaction is fast It is fast quick；By connecting compressed spring on balladeur train, so that relay system open circuit is rotated shaft, spanner is made to return to close stance It sets, convenient for being reopened after debugging.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the half-sectional overlooking structure diagram of the utility model；

Fig. 3 is the half-sectional present invention looks up structural representation of the utility model；

Fig. 4 is the structural schematic diagram of the utility model balladeur train；

Appended drawing reference: 1, shell；2, arc extinguishing area；3, socket；4, connecting plate；5, partition；6, spanner；7, shaft；8, it reacts Area；9, rotating plate；10, baffle；11, plug；12, slide plate；13, slide-bar；14, fixing axle；15, grab；16, electromagnet；17, iron Block；18, compressed spring.

Specific embodiment

In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under The utility model is further described in face with specific embodiments and the drawings, but following embodiments are only the excellent of the utility model Embodiment is selected, and not all.Based on the implementation example in the implementation mode, those skilled in the art are not making creative work Under the premise of obtained other embodiments, belong to protection scope of the present invention.

Specific embodiment of the utility model is described with reference to the accompanying drawing.

Embodiment one

As shown in Figs 1-4, a kind of durable mold cased circuit breaker, including shell 1, shell 1 are successively arranged arc extinguishing from top to bottom Area 2 passes through the reaction zone 8 that partition 5 is isolated with arc extinguishing area 2, is fixed with both ends in reaction zone 8 and fixes respectively with 8 two sides of reaction zone The fixing axle 14 of connection is fixed with the axle sleeve being rotatablely connected with it in fixing axle 14, and spanner 6 is fixed on the outside of axle sleeve, and axle sleeve is left Side is inconsistent with balladeur train, and grab 15,15 hook joint of grab that grab 15 and 9 one end of rotating plate are fixed, rotating plate 9 are fixed on the right side of axle sleeve The other end and 8 two sides of reaction zone are rotatablely connected, and 9 bottom end of rotating plate is fixed with iron block 17, are located in reaction zone 8 below iron block 17 and are equipped with Electromagnet 16, electromagnet 16 and socket 3 are electrically connected, and balladeur train includes two slide bars for passing through partition 5, slide bar left end and connecting plate 4 are fixedly connected, and 4 left end of connecting plate is fixed there are two the plug 11 being electrically connected, plug 11 and 3 grafting of socket, slide bar right part it Between be equipped with baffle 10, the middle part of baffle 10 is slidably connected with slide-bar 13 fixed on partition 5, positioned at partition 5 and baffle on slide-bar 13 Compressed spring 18 is cased between 10, two slide bars are parallel to each other, and are located on partition 5 and are equipped with sealing shroud, socket 3 with slide bar junction It is conducted with external connection terminals.

In 6 close circuit breaker of rotating spanner, axle sleeve rotates in fixing axle 14 keeps the balladeur train inconsistent with axle sleeve opposite It is rotated in partition 5, the plug 11 that slide bar drives its end to connect by connecting plate 4 is mobile to be inserted into plug 11 in socket 3, baffle 10 with partition 5 close to make compressed spring 18 further compression accumulation elastic potential energy, the connection between two sockets 3 is by plug at this moment 11 conductings, so as to make breaker electrifying, electromagnet 16 is connect with socket 3 can make electromagnet 16 that there is magnetism to produce to iron block 17 Raw adsorption capacity makes the close hook joint of grab 15 on the grab 15 and axle sleeve on rotating plate 9, under the adsorption force of electromagnet 16, It is kept fixed rotating plate 9 with grab 15, has the advantages that connection structure is simple, it is durable to be completely embedded.

Embodiment two

As shown in Figs 1-4, a kind of durable mold cased circuit breaker, including shell 1, shell 1 are successively arranged arc extinguishing from top to bottom Area 2 passes through the reaction zone 8 that partition 5 is isolated with arc extinguishing area 2, is fixed with both ends in reaction zone 8 and fixes respectively with 8 two sides of reaction zone The fixing axle 14 of connection is fixed with the axle sleeve being rotatablely connected with it in fixing axle 14, and spanner 6 is fixed on the outside of axle sleeve, and axle sleeve is left Side is inconsistent with balladeur train, and grab 15,15 hook joint of grab that grab 15 and 9 one end of rotating plate are fixed, rotating plate 9 are fixed on the right side of axle sleeve The other end and 8 two sides of reaction zone are rotatablely connected, and 9 bottom end of rotating plate is fixed with iron block 17, are located in reaction zone 8 below iron block 17 and are equipped with Electromagnet 16, electromagnet 16 and socket 3 are electrically connected, the hollow ring being rotatablely connected on the inside of axle sleeve with fixing axle 14, axle sleeve Outside left part is cam-like, and 15 section of grab connected on the right side of axle sleeve is isosceles triangle and identical as the grab 15 on rotating plate 9, The internal diameter of axle sleeve is equal with 14 diameter of fixing axle, and the axial length of axle sleeve is equal with the axial length of fixing axle 14.

When axle sleeve rotates, the outer rim and slide bar of cam-like are inconsistent, during axle sleeve constantly rotates, in balladeur train and axle sleeve The distance between heart is continuously increased, and slides balladeur train relative to partition 5, so that it is inserted into plug 11 in socket 3, it is anti-in breaker After answering area 8 to receive the signal of circuit protection, the electromagnet 16 in reaction zone 8 is breaking, can under the active force of compressed spring 18 Reset balladeur train, balladeur train, which generates radial forces to shaft 7, resets shaft 7.

Working principle: when the utility model is used, the terminal connection of breaker make connect with terminal in circuit it is slotting Seat 3 is powered, and pulling spanner 6 later rotates axle sleeve, so that the plug 11 on balladeur train be made to be inserted into socket 3, electrically connects with socket 3 The electromagnet 16 connect, which is powered, generates magnetic-adsorption iron block 17, has the rotating plate 9 being fixedly connected with iron block 17 to electromagnet 16 and moves Dynamic trend, the grab 15 on rotating plate 9, which catches on the grab 15 on axle sleeve, is kept fixed axle sleeve, and spanner 6 is in closed state, After breaker receives circuit alarm, 16 open circuit of electromagnet, rotating plate 9 loses adsorption capacity, reply masterpiece of the balladeur train in spring It is moved to the right under, rotates shaft 7 under balladeur train effect, so as to make spanner 6 be in discrete state, there is reaction speed The advantages of degree is fast, connection type is simple, firm and reliable connection.

In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it "lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above " One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only Indicate that first feature horizontal height is less than second feature.

Basic principles, main features, and advantages of the present invention has been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Be only the utility model preference, be not intended to limit the utility model, do not departing from the spirit and scope of the utility model Under the premise of, the utility model also has various changes and improvements, these changes and improvements both fall within claimed it is practical In novel range.The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. a kind of durable mold cased circuit breaker, including shell (1), the shell (1) be successively arranged from top to bottom arc extinguishing area (2), Pass through the reaction zone (8) that partition (5) are isolated with arc extinguishing area (2), it is characterised in that: both ends point are fixed in the reaction zone (8) The fixing axle (14) not being fixedly connected with reaction zone (8) two sides is fixed with the axis being rotatablely connected with it on the fixing axle (14) Set, the axle sleeve outside is fixed with spanner (6), inconsistent with balladeur train on the left of the axle sleeve, is fixed with grab on the right side of the axle sleeve (15), fixed grab (15) hook joint in the grab (15) and rotating plate (9) one end, rotating plate (9) other end and reaction zone (8) Two sides rotation connection, rotating plate (9) bottom end are fixed with iron block (17), are located in reaction zone (8) below the iron block (17) and are set Have electromagnet (16), the electromagnet (16) and socket (3) are electrically connected.

2. a kind of durable mold cased circuit breaker according to claim 1, it is characterised in that: the balladeur train includes two and passes through The slide bar of partition (5), the slide bar left end are fixedly connected with connecting plate (4), and connecting plate (4) left end is fixed, and there are two electrically The plug (11) of connection, the plug (11) and socket (3) grafting are equipped with baffle (10) between the slide bar right part, the gear Fixed slide-bar (13) is slidably connected in the middle part of plate (10) and on partition (5), and partition (5) and baffle are located on the slide-bar (13) (10) compressed spring (18) are cased between.

3. a kind of durable mold cased circuit breaker according to claim 2, it is characterised in that: described two slide bars are mutually flat Row is located on partition (5) and is equipped with sealing shroud with slide bar junction, and the socket (3) is conducted with external connection terminals.

4. a kind of durable mold cased circuit breaker according to claim 1, it is characterised in that: be and fixation on the inside of the axle sleeve The hollow ring of axis (14) rotation connection, left part is cam-like, grab (15) section connected on the right side of the axle sleeve on the outside of axle sleeve For isosceles triangle and identical as grab (15) on rotating plate (9).

5. a kind of durable mold cased circuit breaker according to claim 1, it is characterised in that: the internal diameter of the axle sleeve and fixation Axis (14) diameter is equal, and the axial length of axle sleeve is equal with the axial length of fixing axle (14).

6. a kind of durable mold cased circuit breaker according to claim 1, it is characterised in that: the iron core of the electromagnet (16) It is made of silicon steel material.