CN205335098U - Conventional circuit -breaker bridge -shaped contact's isolating pad piece and conventional circuit -breaker - Google Patents

Abstract

Conventional circuit -breaker bridge -shaped contact's isolating pad piece for the isolating pad piece of keeping apart bridge -shaped contact includes two separation portion and connecting portion of integrated into one piece, and two separation portion symmetries set up in the both sides of connecting portion, and the connecting portion lower extreme of isolating pad piece is equipped with the gasket recess of installation location. The utility model provides a conventional circuit -breaker bridge -shaped contact's isolating pad piece and conventional circuit -breaker through the location structure who sets up the gasket recess at isolating pad piece lower extreme, not only can realize the location, moreover than the circular shape locating hole positioning adjustment position of being more convenient for, and reduce cost and be favorable to the heat dissipation, handling ease moreover simultaneously.

Description

The isolation pad of bridge-shaped contact of universal circuit breaker and omnipotent breaker

Technical field

This utility model relates to Low Voltage Electrical Apparatus, is specifically related to isolation pad and the omnipotent breaker of a kind of bridge-shaped contact of universal circuit breaker。

Background technology

Intelligent universal circuit breaker is the air-break of China's independent research nineties in last century; there is comparatively complete defencive function; protection act electric current is comparatively accurate; intelligence degree is higher; rated operational voltage is up to AC690V/50Hz, and rated current is maximum to 6300A, is used primarily in distribution network for distributing electric energy; protection circuit and power-supply device are from the harm of overload, short circuit and under-voltage, it is possible to be used for protecting motor from overload, short circuit, under-voltage harm。Also infrequently can change as circuit under normal condition and the use of infrequently startup of motor。

The bridge-shaped contact of omnipotent breaker is the important pivot that electric conductor motion parts (omnipotent breaker body) and stationary part (universal circuit breaker drawer seat) are coupled together, and can be linked together by two-part busbar by bridge-shaped contact。Isolation pad does not arrange on the bridge-shaped contact support of existing omnipotent breaker position limiting structure, and it is unreliable to position during assembling, causes that assembling process wastes time and energy。And, shaping piece many employings copper, the electric current so flowing through bridge-type contact is big, and square being directly proportional of electric power and current instantaneous value, so chopper is had destructiveness by the bigger electric power of generation。Further, by isolation pad, the two row's contact chips being disposed in parallel in support both sides are separated, cause bridge-shaped contact inner space to diminish, be not easy to heat radiation, affect the reliability of product。Additionally, be separated out gap and dispel the heat by increasing isolation pad between contact chip and contact chip, Assembly part increases, and causes existing that assembly process complexity, production cost be high, weak heat-dissipating and the firm not problem such as firm of assembling。

The envelope surface of omnipotent breaker is directly labeled with the manufacturer of chopper, model and basic parameter information, not only improve the product identification degree of omnipotent breaker, also the aesthetic measure of direct reaction product, ornamental strip, as a part of case, directly affects the image appearance of product。On market, existing product is all the assembling adopting gum stickup or quadric injection mould to realize ornamental strip, and sticking structure exists the caducous risk of appearance, and quadric injection mould exists the problem that processing cost is high。

The key lock of omnipotent breaker is arranged on operating mechanism by the case of chopper, it is possible to the push rod pinning operating mechanism makes chopper manually, electrically all can not close a floodgate, and improves the security performance that user uses。The perforate face of existing most of chopper case is level, but it is rough for there is also case key lock position of opening, and this makes troubles to perforate, causes that appearance cannot the situation such as accurately perforate, perforate efficiency is low。

The stored energy operation handle of omnipotent breaker is responsible for the effect that operating mechanism completes manual energy storage, one good operation handle can not only be laborsaving, and the comfort operated can be improved, the existence of existing energy accumulation handle operates with effort, the defects such as grasping feel is uncomfortable。

The drawout chassis of omnipotent breaker makes the operation of chopper safer, safeguard convenient, and crank handle is just so that breaker body shakes into the indispensable arm lever instrument shaken out in open frame circuit breaker drawout chassis, it is arranged in the middle of drawout chassis conveniently to take at any time, is also convenient for maintenance management。Existing crank handle mounting means is all integrally fixed on the trailing flank of drawout chassis base plate so that the length of crank handle is fixed, it is impossible to regulates, causes the user demand that can not meet the crank handle to different length。

Utility model content

The purpose of this utility model is in that to overcome the defect of prior art, it is provided that the isolation pad of the bridge-shaped contact of universal circuit breaker of a kind of simple in construction and omnipotent breaker。

For achieving the above object, this utility model adopts the technical scheme that

A kind of isolation pad of bridge-shaped contact of universal circuit breaker, for isolating the isolation pad 34 of bridge-shaped contact 3, including integrated two isolation parts 341 and a connecting portion 342, two isolation parts 341 are symmetricly set on the both sides of connecting portion 342, and connecting portion 342 lower end of isolation pad 34 is provided with the pad groove 343 installing location。

Preferably, isolation part 341 and connecting portion 342 lower surface of described isolation pad 34 flush, and the upper surface upper end intermediate formation groove at isolation pad 34 of connecting portion 342 is protruded in the isolation part 341 being positioned at connecting portion 342 both sides。

Preferably, the isolation part 341 of isolation pad 34 is provided with the 3rd installing hole 344 assembled with contact chip 32, contact chip 32 also is provided with the second installing hole 323 of assembling, realize that contact chip 32 is fixing with isolation pad 34 to be connected by being provided with the installation axle 33 coordinated with the 3rd installing hole 344 and the second installing hole 323, or contact chip 32 is provided with the projection with the 3rd installing hole 344 cooperation and realizes contact chip 32 and fix with isolation pad 34 and be connected。

Preferably, it is provided with and the projection contacting assemblying in the both sides, isolation part 341 of isolation pad 34, fixes spacing with the pilot hole on contact chip 32。

Preferably, the integrated formed structure that described isolation pad 34 is made for thermosetting plastics。

This utility model additionally provides a kind of omnipotent breaker, including bridge-shaped contact 3, described bridge-shaped contact 3 includes the isolation pad 34 described in support 31 and the contact chip 32 being arranged on support 31 and technique scheme, all front and back, the both sides of isolation pad 34 are fixed with contact chip 32, and contact chip 32 separates formation gap by the both sides of isolation pad 34；Two contact chip rows it are relatively set with in support 31 both sides, the contact chip group that at least two is arranged side by side is drawn together in each described contact chip package, each contact chip group includes two independent contact chips 32, it is provided with isolation pad 34 between two contact chips 32 of contact chip group, separates formation gap by isolation pad 34；Described support 31 is provided with the locating shaft 35 being available for isolation pad 34 location。

Preferably, described support 31 includes two pieces of risers 312 that time interval is arranged and the transverse slat 313 being vertically set between two pieces of risers 312, the part of two pieces of downwardly projecting transverse slats of riser 312 313 forms the card base angular distribution in four, the part of transverse slat 313 protruding upward forms opening up two E type structure, and described transverse slat 313 is provided with the two dissipation hot holes 316 being dislocatedly distributed；And bottom the middle arm of E type structure, it is provided with the positioning shaft hole 315 coordinated with locating shaft 35。

Preferably, that side that described contact chip 32 is relative with another contact chip row is provided with L-shaped ladder boss 324, wherein the high step side of ladder boss 324 flushes with the upper end of contact chip 32, the upper corners of contact chip 32 is relative with the high step of ladder boss 324 is provided with round and smooth chamfering, and the lower end of described contact chip 32 and ladder boss 324 homonymy are provided with circular arc boss 325。

Preferably, described bridge-shaped contact 3 is connected with drawout chassis 2, drawout chassis 2 includes drawout chassis base plate 21 and is arranged on the adjusting apparatus on drawout chassis base plate 21, keeper 22 and crank handle installation sleeve pipe 23, described drawout chassis base plate 21 includes the first side wall 211 and the second sidewall 212 that are set in parallel in both sides, drawout chassis base plate 21 baseplane, described crank handle is installed the two ends of sleeve pipe 23 and is fixed be connected with the first side wall 211 of drawout chassis base plate 21 and keeper 22 respectively, and the other end of keeper 22 passes and is fixed on the second sidewall 212 of drawout chassis base plate 21；Described crank handle is installed and is provided with adjusting apparatus between sleeve pipe 23 and the second sidewall 212 and realizes the crank handle of different length and install the placement installing crank handle to adapt to different length of sleeve pipe 23 and keeper 22；Described adjusting apparatus includes the bent plate 24 being fixed on drawout chassis base plate 21, and bent plate 24 lower end is provided with the first support slot 244 matched with keeper 22, and keeper 22 location is fixed on drawout chassis base plate 21 by bent plate 24 by the first support slot 244 thereon。

The isolation pad of bridge-shaped contact of universal circuit breaker of the present utility model, by offering the location structure of pad groove in isolation pad lower end, it is possible not only to realize location, and is more convenient for adjusting position location than circular hole, location, reduce cost simultaneously and be conducive to heat radiation, and being easy to processing。

Accompanying drawing explanation

Fig. 1 is the structural representation of breaker body of the present utility model and case；

Fig. 2 is the structural representation of drawout chassis of the present utility model and bridge-shaped contact；

Fig. 3 is the structural representation of case of the present utility model and ornamental strip；

Fig. 4 is the partial structurtes schematic diagram of case of the present utility model；

Fig. 5 is the structural representation of ornamental strip of the present utility model；

Fig. 6 is the upward view of case of the present utility model；

Fig. 7 is the perspective view of energy accumulation handle of the present utility model；

Fig. 8 is the side view of energy accumulation handle of the present utility model；

Fig. 9 is the perspective view of bridge-shaped contact of the present utility model；

Figure 10 is the top view of bridge-shaped contact of the present utility model；

Figure 11 is the structural representation of bridge-shaped contact support of the present utility model；

Figure 12 is the structural representation of isolation pad of the present utility model；

Figure 13 is the structural representation of another embodiment of isolation pad of the present utility model；

Figure 14 is the structural representation of another embodiment of locating shaft of the present utility model；

Figure 15 is the top view of another embodiment of bridge-shaped contact of the present utility model；

Figure 16 is the structural representation of the contact chip in Figure 15 of the present utility model；

Figure 17 is the partial structurtes schematic diagram of drawout chassis of the present utility model；

Figure 18 is the enlarged drawing at A place in Figure 17 of the present utility model；

Figure 19 is the structural representation of bent plate of the present utility model；

Figure 20 is the structural representation of adjustment pad of the present utility model。

Detailed description of the invention

Below in conjunction with the embodiment that accompanying drawing 1 to 20 provides, further illustrate the detailed description of the invention of omnipotent breaker of the present utility model。Omnipotent breaker of the present utility model is not limited to the following description。

As depicted in figs. 1 and 2, omnipotent breaker of the present utility model includes breaker body 1, drawout chassis 2, bridge-shaped contact 3 and case 4, breaker body 1 is arranged in drawout chassis 2, breaker body 1 one end, by being connected between bridge-shaped contact 3 with drawout chassis 2, the other end covers and is fixed with case 4。

Breaker body 1 of the present utility model includes the key lock 12 of the energy accumulation handle 11 for chopper manual energy storage and the operating mechanism push rod that can pin breaker body 1, energy accumulation handle 11 is pivotably attached on the operating mechanism of breaker body 1, described energy accumulation handle 11 includes first arc section the 111, second arc section 112 and the three-arc section 113 being sequentially connected, wherein three-arc section 113 is connected with breaker body 1, and first arc section the 111, second arc section 112 and three-arc section 113 medial surface formed smooth surface shape operation time hold face；Four arris of first arc section the 111, second arc section 112 and three-arc section 113 all carry out round and smooth chamfering and form four articles of smooth track scanning curves 118。Seamlessly transitting one smooth easement curve of formation by syllogic circular arc, be scanned moulding again through a smooth curve, thus obtaining operating mechanism energy accumulation handle to hold the smooth surface in face, convenient grasping, both safety labor-savings, improving again operation comfort。Certainly, energy accumulation handle is held the smooth surface in face and be may also be arc radius one the smooth easement curve of formation being seamlessly transitted circular arc by syllogic, is scanned moulding again through a smooth curve and is formed。

Consulting Fig. 7 and Fig. 8, the interval, inside and outside side of described energy accumulation handle 11 is arranged, and is connected by the first connection strap 114 between the inside and outside side of the first arc section 111 upper end；Connected by the second connection strap 115 between the inside and outside side of three-arc section 113 bottom, and the second connection strap 115 is connected with breaker body 1；Added by the first stiffener 116 between inside and outside side in the middle part of first arc section 111 and be solidly connected, added by the second stiffener 117 between the inside and outside side in the middle part of the second arc section 112 and be solidly connected。Alleviate the weight of handle, more laborsaving during convenient operation, ensure sound construction, reduce labor intensity, improve reliability。Further, the length of length > first connection strap 114 of length > first stiffener 116 of length > second stiffener 117 of the second connection strap 115, the width of handle tapers into, and ensures that integral firmness improves the comfort level of grasping simultaneously。Specifically, the length of length > second arc section 112 of the length > three-arc section 113 of the first arc section 111；When the lateral surface of the first arc section 111 is in vertical, the medial surface of the first arc section 111 and horizontal angle are a, the medial surface of the second arc section 112 and horizontal angle are b, and the medial surface of three-arc section 113 and horizontal angle are c, wherein a > b > c；The lateral surface of the first arc section 111 and horizontal angle are a ＇, and the lateral surface of the second arc section 112 and horizontal angle are b ＇, and the lateral surface of three-arc section 113 and horizontal angle are c ＇, wherein a ＇ > b ＇ > c ＇。The flexibility of three sections of arc sections does not wait and differs little so that form smooth surface, improves operation comfort。Further, the differential seat angle between differential seat angle and the angle b and the angle c of three-arc section 113 of the second arc section 112 between the angle a and the angle b of the second arc section 112 of the first arc section 111 is equal；The differential seat angle between differential seat angle and angle b ＇ and the angle c ＇ of three-arc section 113 of the second arc section 112 between the angle a ＇ and the angle b ＇ of the second arc section 112 of the first arc section 111 is equal, the overall outer contour transition making handle is uniform, improve aesthetic appearance, ensure operational comfort。The angle a ＇ > a of the first arc section 111, the angle b ＇ > b of the second arc section 112, the angle c ＇ > c of three-arc section 113。The setting of energy accumulation handle medial surface degree of crook, meets ergonomic, improves the comfort of operation handle, convenient grasping to greatest extent；The setting of lateral surface degree of crook, ensures integrally-built fastness, convenient and strength-saving, reduces labor intensity。

Consult Fig. 6, case 4 of the present utility model covers and is fixed on breaker body 1, it is provided with in the side, middle part of case 4 panel and is available for the key lockhole 46 that key lock 12 passes through, opposite side is provided with the vertical handle mounting groove 44 that can hold energy accumulation handle 11, is positioned at above key lockhole 46 and handle mounting groove 44 and offers along the face plate edge of case 4 is available for the horizontal ornamental strip mounting groove 41 that ornamental strip 42 is installed；One end of energy accumulation handle 11 is arranged on breaker body 1 through case 4, and the other end protrudes breaker body 1 and is contained in the handle mounting groove 44 of case 4, and the perisporium of handle mounting groove 44 protrudes case 4 panel medial surface and forms handle boss 45；Described handle boss 45 includes the boss openings 453 of the boss plane 451, boss inclined-plane 452 and the circular arc that are sequentially connected, the boss openings 453 of described energy accumulation handle 11 and breaker body 1 link traverse case 4 is arranged on breaker body 1, and the other end is retained in the handle mounting groove 44 of case 4 and boss plane 451 and corresponding position, boss inclined-plane 452；The lockhole end of described key lock 12 is exposed on case 4, and the other end is arranged on the operating mechanism push rod of breaker body 1 through case 4；Ornamental strip 42 sinks to and is fixed in the ornamental strip mounting groove 41 of case 4, and its upper surface flushes with the surface of case 4。

Inside the panel of described case 4, upper key lock 12 place of needing guiding through is provided with the position of opening of uneven structure, the position of opening of case 4 is provided with the annular guide ledges 47 matched with key lock 12, during perforate, drill bit 5 can offer from inside to outside on case 4 along the inwall of guide ledges 47 and be available for the key lockhole 46 that key lock 12 passes through。Direction and the position of drill bit perforate, convenient perforate on uneven position, it is to avoid perforate location is difficult and inaccurate, improves the Efficiency and accuracy of perforate, improves reliability is guided by arranging guide ledges。

Described guide ledges 47 is annulus cylindrical end tangs structure, and the internal diameter of the guide ledges 47 of annular is suitable with the aperture of key lockhole 46, improves perforate accuracy。On case 4 and be positioned at guide ledges 47 be additionally provided with annular internal ring boss 48。Another embodiment of guide ledges 47, described guide ledges 47 is the annular boss structure with flare openings, and inside described loudspeaker opening and case 4 panel, the internal diameter of junction is suitable with the aperture of key lockhole 46, improves perforate efficiency。

Consult Fig. 3-5, the contact surface of ornamental strip 42 and case 4 is provided with flexible clamp piece, being provided with the draw-in groove 43 that the flexible clamp piece with ornamental strip 42 matches in the ornamental strip mounting groove 41 of described case 4, ornamental strip 42 is fixed in the ornamental strip mounting groove 41 of case 4 by flexible clamp piece thereon。Fix by connecting and fixing the traditional stickup of replacement, firmly install, difficult drop-off, improve reliability, assemble simple in construction, convenient for assembly, improve efficiency of assembling, it may be achieved repeatedly remove and install。

Described ornamental strip 42 includes integrated first ornamental strip 423 and the second ornamental strip 424 with identified areas, and the width of width ratio first ornamental strip 423 of the second ornamental strip 424 is big；Described second ornamental strip 424 side flushes with the first ornamental strip 423, and opposite side and the first ornamental strip 423 junction are provided with intermediate incline 425；First ornamental strip 423 of described ornamental strip 42 is horizontally arranged with four flexible clamp pieces, described second ornamental strip 424 is vertically arranged with a flexible clamp piece。Assembling more stable, good looking appearance, the second ornamental strip is wide enough to leave enough identified areas, facilitates labelling identification information, improves product identification degree。

Described flexible clamp piece includes the fixture block 421 that matches with draw-in groove 43 and is arranged on the buckle 422 on fixture block 421 outer wall, the integrated formed structure that fixture block 421 and buckle 422 are made for elastomeric material；Described fixture block 421 is U-shape structure, buckle 422 is arranged on the port both sides of U-shaped fixture block 421, described draw-in groove 43 is the square groove coordinated with U-shaped fixture block 421, the two-arm of U-shaped fixture block 421 is pressed against middle swing by the perisporium of draw-in groove 43 in installation process, when installation puts in place, fixture block 421 recovers elastic deformation, and the perisporium that its both sides buckle 422 then blocks draw-in groove 43 realizes the fixing of ornamental strip 42。Even structure is firm, improves reliability, and assembling simple in construction is firm, is formed the swing space of two-arm by the opening of U-shaped fixture block, reduces labor intensity, convenient for assembly, improves efficiency of assembling。Another embodiment of described fixture block 421 and buckle 422, described fixture block 421 is cylindrical structural, and described buckle 422 is arranged on the outer wall of fixture block 421 in agnail type structure, and described draw-in groove 43 is the circular trough matched with flexible clamp piece, improves steadiness；Further, described buckle 422 is annular protrusion, the annular of described annular protrusion be from top to bottom annular thickness gradually by thin thickening annular；The quantity of described buckle 422 is at least two, stacks gradually on the outer wall being arranged on fixture block 421。Formed and shrink uneven flexible clamp piece, improve assembling steadiness。

Another embodiment of described flexible clamp piece, flexible clamp piece is the circular card buckle structure protruding ornamental strip 42 end face, projection and the elastic U-type groove of formation being arranged in the projection of column type including column type, it is provided with the second fixture block in U-type groove end, described draw-in groove 43 is the circular trough matched with flexible clamp piece, simple in construction consolidates, convenient for assembly。

Consult Fig. 9 and Figure 10, bridge-shaped contact 3 of the present utility model includes support 31 and the contact chip 32 being arranged on support 31 and isolation pad 34, two contact chip rows it are relatively set with in support 31 both sides, the contact chip group that at least two is arranged side by side is drawn together in each described contact chip package, each contact chip group includes two independent contact chips 32, it is provided with isolation pad 34 between two contact chips 32 of contact chip group, separates formation gap by isolation pad 34。

Consult Figure 11, described support 31 includes two pieces of risers 312 that time interval is arranged and the transverse slat 313 being vertically set between two pieces of risers 312, a locating shaft 35 it is provided with between the middle part of two pieces of risers 312, isolation pad 34 can be placed in and forms assembling location on locating shaft 35, being provided with two installation axles 33 between the both sides of two pieces of risers 312 and can be fixed between two pieces of risers 312 by contact chip 32 and isolation pad 34, locating shaft 35 is parallel with installing axle 33；The part of two pieces of downwardly projecting transverse slats of riser 312 313 forms the card base angular distribution in four, and the part of transverse slat 313 protruding upward forms opening up two E type structure；The two side arms of described E type structure is arranged with and the first installing hole 311 that axle 33 matches is installed, and bottom the middle arm of E type structure, it being provided with the positioning shaft hole 315 coordinated with locating shaft 35, the first installing hole 311 and positioning shaft hole 315 on riser 312 are distributed in del；Described transverse slat 313 is provided with the two dissipation hot holes 316 being dislocatedly distributed, and facilitates the air in each orientation to circulate, and radiating effect is obvious。

Consulting Figure 16, contact chip 32 of the present utility model is arranged on the both sides of described support 31 by installing axle 33, the upper end correspondence position of support 31 and contact chip 32 is respectively equipped with and installs the first installing hole 311 and the second installing hole 323 that axle 33 matches；That side that described contact chip 32 is relative with another contact chip row is provided with L-shaped ladder boss 324, wherein the high step side of ladder boss 324 flushes with the upper end of contact chip 32, and the upper corners of contact chip 32 is relative with the high step of ladder boss 324 is provided with round and smooth chamfering。The lower end of described contact chip 32 and ladder boss 324 homonymy are provided with circular arc boss 325；The opposite side relative position of contact chip 32 is provided with and circular arc boss 325 the first groove 326 in the same direction, and middle part is provided with the second groove 327。

Consult Figure 12, isolation pad 34 of the present utility model is the integrated formed structure being made of copper, including two isolation parts 341 and a connecting portion 342, two isolation parts 341 are symmetricly set on the both sides of connecting portion 342, isolation part 341 and connecting portion 342 lower surface of isolation pad 34 flush, the upper surface upper end intermediate formation groove at isolation pad 34 of connecting portion 342 is protruded in the isolation part 341 being positioned at connecting portion 342 both sides, and four contact chips 32 of be set up in parallel two contact chip groups are separated between two by isolation pad 34 by the isolation part 341 of both sides。Upper end, isolation part 341 correspondence position of isolation pad 34 is provided with and installs the 3rd installing hole 344 that axle 33 matches, connecting portion 342 lower end of isolation pad 34 is provided with the pad groove 343 of the circular arc matched with locating shaft 35, isolation pad 34 is placed on the locating shaft 35 on support 31 by pad groove 343 thereon location and realizes the location up and down and on left and right directions and freely can move forward and backward along locating shaft 35 so that the 3rd installing hole 344 on isolation pad 34 and the first lucky concentric alignment of installing hole 311 on support 31。By being provided with locating shaft 35 on support 31 and being correspondingly provided with the circular arc pad groove 343 matched with locating shaft 35 on isolation pad 34, make whole assembling process become efficient and convenient, improve the efficiency of assembling of bridge-shaped contact, reduce production cost, simultaneously, the setting of pad groove 343 arc-shaped structure, it is to avoid stress during stress is concentrated, increases bearing strength, reduce materials'use, making bridge-shaped contact intermediate space relatively big, heat radiation substantially, improves the reliability of product；Compared to hole, location, the more convenient location of pad groove, improve efficiency of assembling, reduce cost, it is simple to processing。Preferably, isolation pad 34 adopts thermosetting plastics injection moulding integrated molding to replace copper, and copper has electric conductivity, and isolation pad 34 made of copper causes that the electric current flowing through bridge-shaped contact 3 is big, and square being directly proportional of electric power and current instantaneous value, so producing bigger electric power chopper is had destructiveness；Thermosetting plastics has insulating properties, and the isolation pad 34 of thermosetting plastics can make the electric current flowing through bridge-shaped contact 3 little relative to the former, produces small electric power, thus improving service life and the reliability of bridge-shaped contact 3。Consult Figure 13 and Figure 14, another embodiment of isolation pad 34 and locating shaft 35 fit structure, the upper surface of locating shaft 35 is axially arranged chute 300, isolation pad 34 lower end is provided with, with locating shaft 35 place of cooperation, the boss slider 301 coordinated with chute 300, isolation pad 34 snaps in the interior location realized up and down and on left and right directions of chute 300 of locating shaft 35 by boss slider 301 and freely can move forward and backward along locating shaft 35, location is more accurate, facilitates isolation pad to move freely on locating shaft。

When bridge-shaped contact 3 assembles, a locating shaft 35 is penetrated in positioning shaft hole 315 on 31 two pieces of risers 312 of support, isolation pad 34 is sequentially placed on locating shaft 35, isolation pad 34 is positioned with tangent formation of turning circle cylinder of locating shaft 35 just by pad groove 343 thereon, make the 3rd installing hole 344 on isolation pad 34 and the first installing hole 311 concentric alignment on support 31, realizing the isolation pad 34 location on support 31, convenient axle 33 of installing successfully is installed；Then, four contact chips 32 are inserted respectively between two the both sides between two isolation pads 34, and the second installing hole 323 on contact chip 32 and the 3rd installing hole 344 concentric alignment on isolation pad 34, be plugged on contact chip 32 between isolation pad 34 by that analogy；By installing axle 33 traverse first installing hole the 311, second installing hole 323 and the 3rd installing hole 344 and being fixed on support 31, it is achieved the assembling on support 31 to isolation pad 34 and contact chip 32。

Another embodiment of the mounting structure of isolation pad 34 of the present utility model and contact chip 32, being provided with the 3rd installing hole 344 assembled with contact chip 32 on the isolation part 341 of isolation pad 34, contact chip 32 is provided with the projection coordinated with the 3rd installing hole 344 and realizes contact chip 32 and isolation pad 34 and fix and be connected。Or, it is provided with and the projection contacting assemblying in the both sides, isolation part 341 of isolation pad 34, fixes spacing with the pilot hole on contact chip 32。By snapping connection replacement between isolation pad and contact chip, axle is installed, saves the assembling preparation of installing hole all align, simplify assembling, improve efficiency of assembling。

Consult Figure 15 and Figure 16, another embodiment of bridge-shaped contact 3 of the present utility model, adopt and on contact chip 32, be provided with isolation convex closure to replace isolation pad 34。Side between two contact chips 32 of described contact chip group is provided with isolation convex closure, and described contact chip 32 is punching press integrated formed structure with isolation convex closure, and two contact chips 32 separate formation gap by isolating convex closure。By being provided with isolation convex closure on contact chip in order to replace isolation pad, reduce Assembly part, reduce cost, simplify assembly process, mounting stability is better, make bridge-shaped contact to carry out in swapping process the lateral stability of contact chip better with body bus, stability can be improved, good thermal diffusivity can be ensured again。Described isolation convex closure includes the upper convex closure 321 that is oppositely arranged up and down and lower convex closure 322, the edge of side upper end edge second installing hole 323 of contact chip 32 be provided with described on convex closure 321。Both play good buffer action, and the second installing hole peripheral structure can have been played again reinforcement effect, improve reliability。The lower end, side of contact chip 32 with described on convex closure 321 be relatively set with described lower convex closure 322；The height that described upper convex closure 321 and lower convex closure 322 protrude contact chip 32 end face is suitable, is correspondingly arranged one on the other by convex closure, ensures the stability of contact chip assembling。Specifically, the convex closure structure of the stacking formation of ring that described upper convex closure 321 tapers into for outline, the convex closure structure of the stacking formation of circle that described lower convex closure 322 tapers into for outline, reduces the contact area between contact chip 32, it is simple to heat radiation, improves reliability。Certainly, upper convex closure 321 and lower convex closure 322 are not limited only to said structure, it is also possible to be that upper surface is smooth to ensure stable other convex closure structure sticked together mutually of two contact chips 32。

Consult Figure 17 and Figure 18, drawout chassis 2 of the present utility model includes drawout chassis base plate 21 and is arranged on the adjusting apparatus on drawout chassis base plate 21, keeper 22 and crank handle installation sleeve pipe 23, described drawout chassis base plate 21 includes the first side wall 211 and the second sidewall 212 that are set in parallel in both sides, drawout chassis base plate 21 baseplane, described crank handle is installed the two ends of sleeve pipe 23 and is fixed be connected with the first side wall 211 of drawout chassis base plate 21 and keeper 22 respectively, and the other end of keeper 22 passes and is fixed on the second sidewall 212 of drawout chassis base plate 21；Described crank handle is installed and is provided with adjusting apparatus between sleeve pipe 23 and the second sidewall 212 and realizes the crank handle of different length and install the placement installing crank handle to adapt to different length of sleeve pipe 23 and keeper 22。Adjust the distance between crank handle installation sleeve pipe location place and the second sidewall on the positioning element by being provided with adjusting apparatus, thus realizing placing the crank handle of length fine setting, simple in construction, conveniently regulating, meeting the user demand of crank handle different length。

Consult Figure 19 and Figure 20, the first side wall 211 of described drawout chassis base plate 21 is provided with installs, with crank handle, the sleeve pipe installing hole that sleeve pipe 23 coordinates, crank handle is installed one end of sleeve pipe 23 and is fixed in sleeve pipe installing hole, the other end is socketed on keeper 22, and keeper 22 is installed with crank handle and is connected by the connector 27 of circular arc sheet is fixing between sleeve pipe 23。Described adjusting apparatus includes the bent plate 24 being fixed on drawout chassis base plate 21, described bent plate 24 includes clamping plate 241 connected vertically and two gripper shoes 242, clamping plate 241 lower end of bent plate 24 is provided with the first support slot 244 matched with keeper 22, during assembling, keeper 22 location is fixed on drawout chassis base plate 21 by the first support slot 244 thereon by bent plate 24, the gripper shoe 242 of bent plate 24 is against on the baseplane of drawout chassis base plate 21, and crank handle is installed sleeve pipe 23 and stopped by the clamping plate 241 of bent plate 24；Being connected by two transition arcs 243 between described clamping plate 241 and two gripper shoes 242, two gripper shoes 242 are symmetricly set on clamping plate 241 and install that side that sleeve pipe 23 offsets and the both sides being positioned at the first support slot 244 with crank handle。Bent plate can freely be finely tuned keeper and stretched into the length of part in drawout chassis base plate and be fixed on drawout chassis base plate by keeper location, realize the installation site of location crank handle, thus facilitating the placement of the crank handle of different length, simple in construction, easy to use, improve efficiency and reliability。

It is fixed on drawout chassis base plate 21 to realize bent plate 24, described adjusting apparatus also includes the adjustment backing plate 25 being fixed on drawout chassis base plate 21, adjusting backing plate 25 and be arranged between bent plate 24 and the second sidewall 212, bent plate 24 is fixed on the second sidewall 212 of drawout chassis base plate 21 by adjusting backing plate 25；The lower end adjusting backing plate 25 is provided with the second support slot 251 matched with keeper 22, adjusts backing plate 25 and is fixed on keeper 22 and between bent plate 24 and the second sidewall 212 by the second support slot 251 thereon；Described bent plate 24 and adjustment backing plate 25 are fixed on the second sidewall 212 by two screws 26, being respectively symmetrically on the clamping plate 241 of bent plate 24 and adjustment backing plate 25 correspondence position and be provided with two the first screw holes 245 and two the second screw holes 252 coordinated with screw 26, screw 26 passes sequentially through second sidewall the 212, second screw hole 252 and the first screw hole 245 and bent plate 24 and adjustment backing plate 25 is fixed on the second sidewall 212。Adjust the setting of backing plate, strengthen the fastness being connected between bent plate and drawout chassis base plate, ensure that when crank handle uses, keeper is positioned fixedly, and improves reliability。

Or, described bent plate 24 does not realize being fixed on drawout chassis base plate 21 by adjustment backing plate 25, and bent plate 24 is fixed on drawer base plate 21 either directly through two screws 26, being arranged with two the first screw holes 245 coordinated with screw 26 in two gripper shoes 242 of bent plate 24, bent plate 24 is fixed on the baseplane of drawer base plate 21 by the cooperation of screw 26 and the first screw hole 245。The installation site adjusting crank handle installation sleeve pipe is more convenient, it is only necessary to bent plate is positioned and fixed, improves efficiency。

Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, it is impossible to assert that of the present utility model being embodied as is confined to these explanations。For this utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, it is also possible to make some simple deduction or replace, protection domain of the present utility model all should be considered as belonging to。

Claims (9)

1. the isolation pad of a bridge-shaped contact of universal circuit breaker, it is characterized in that: be used for isolating the isolation pad (34) of bridge-shaped contact (3), including integrated two isolation parts (341) and a connecting portion (342), two isolation parts (341) are symmetricly set on the both sides of connecting portion (342), and connecting portion (342) lower end of isolation pad (34) is provided with the pad groove (343) installing location。

2. the isolation pad of bridge-shaped contact of universal circuit breaker according to claim 1, it is characterized in that: isolation part (341) and connecting portion (342) lower surface of described isolation pad (34) flush, the upper surface upper end intermediate formation groove at isolation pad (34) of connecting portion (342) is protruded in the isolation part (341) being positioned at connecting portion (342) both sides。

3. the isolation pad of bridge-shaped contact of universal circuit breaker according to claim 1, it is characterized in that: be provided with on the isolation part (341) of isolation pad (34) and the 3rd installing hole (344) of contact chip (32) assembling, contact chip (32) also is provided with second installing hole (323) of assembling, realize that contact chip (32) and isolation pad (34) are fixing to be connected by being provided with the installation axle (33) coordinated with the 3rd installing hole (344) and the second installing hole (323), or contact chip (32) is provided with the projection coordinated with the 3rd installing hole (344) and realizes that contact chip (32) and isolation pad (34) are fixing to be connected。

4. the isolation pad of bridge-shaped contact of universal circuit breaker according to claim 1, it is characterized in that: be provided with and the projection contacting assemblying in isolation part (341) both sides of isolation pad (34), fix spacing with the pilot hole on contact chip (32)。

5. the isolation pad of bridge-shaped contact of universal circuit breaker according to claim 1, it is characterised in that: the integrated formed structure that described isolation pad (34) is made for thermosetting plastics。

6. an omnipotent breaker, including bridge-shaped contact (3), it is characterized in that, described bridge-shaped contact (3) includes support (31) and the contact chip (32) being arranged on support (31) and the isolation pad (34) as described in claim 1-5, all front and back, the both sides of isolation pad (34) are fixed with contact chip (32), and contact chip (32) separates formation gap by the both sides of isolation pad (34)；Two contact chip rows it are relatively set with in support (31) both sides, the contact chip group that at least two is arranged side by side is drawn together in each described contact chip package, each contact chip group includes two independent contact chips (32), it is provided with isolation pad (34) between two contact chips (32) of contact chip group, separates formation gap by isolation pad (34)；Described support (31) is provided with and is available for the locating shaft (35) that isolation pad (34) positions。

7. omnipotent breaker according to claim 6, it is characterized in that: described support (31) includes two pieces of risers (312) that time interval is arranged and the transverse slat (313) being vertically set between two pieces of risers (312), the part of the two pieces of downwardly projecting transverse slat of risers (312) (313) forms the card base angular distribution in four, the part of transverse slat protruding upward (313) forms opening up two E type structure, and described transverse slat (313) is provided with the two dissipation hot holes (316) being dislocatedly distributed；And bottom the middle arm of E type structure, it is provided with the positioning shaft hole (315) coordinated with locating shaft (35)。

8. omnipotent breaker according to claim 6, it is characterized in that: that side that described contact chip (32) is relative with another contact chip row is provided with L-shaped ladder boss (324), wherein the high step side of ladder boss (324) flushes with the upper end of contact chip (32), the upper corners of contact chip (32) is relative with the high step of ladder boss (324) is provided with round and smooth chamfering, and the lower end of described contact chip (32) and ladder boss (324) homonymy are provided with circular arc boss (325)。

9. omnipotent breaker according to claim 6, it is characterized in that: described bridge-shaped contact (3) is connected with drawout chassis (2), drawout chassis (2) includes drawout chassis base plate (21), and it is arranged on the adjusting apparatus on drawout chassis base plate (21), keeper (22) and crank handle install sleeve pipe (23), described drawout chassis base plate (21) includes the first side wall (211) and the second sidewall (212) that are set in parallel in drawout chassis base plate (21) both sides, baseplane, the two ends of described crank handle installation sleeve pipe (23) are fixing with the first side wall (211) of drawout chassis base plate (21) and keeper (22) respectively to be connected, the other end of keeper (22) passes and is fixed on second sidewall (212) of drawout chassis base plate (21)；Described crank handle is installed and is provided with adjusting apparatus between sleeve pipe (23) and the second sidewall (212) and realizes the crank handle of different length and install the placement of sleeve pipe (23) and the installation crank handle to adapt to different length of keeper (22)；Described adjusting apparatus includes the bent plate (24) being fixed on drawout chassis base plate (21), bent plate (24) lower end is provided with the first support slot (244) matched with keeper (22), and keeper (22) location is fixed on drawout chassis base plate (21) by bent plate (24) by the first support slot (244) thereon。