CN204966421U - Link assembly of circuit breaker - Google Patents
Link assembly of circuit breaker Download PDFInfo
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- CN204966421U CN204966421U CN201520602356.2U CN201520602356U CN204966421U CN 204966421 U CN204966421 U CN 204966421U CN 201520602356 U CN201520602356 U CN 201520602356U CN 204966421 U CN204966421 U CN 204966421U
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- overlap joint
- link assembly
- circuit breaker
- movable connector
- erection column
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Abstract
The utility model provides a link assembly of circuit breaker, the link assembly activities contact that can drive the circuit breaker rotate, link assembly is including the connecting rod and the overlap joint characteristic that are connected and inlay the reinforcement of establishing in connecting rod and overlap joint characteristic. The tip of reinforcement is arranged in the overlap joint characteristic to the tip of reinforcement can be connected with the activities contact contact, thereby promotes the activities contact rotation at breaker closing in -process link assembly's reinforcement. The utility model provides a connect stability, sound construction, the simple and convenient link assembly of circuit breaker of assembly.
Description
Technical field
The utility model relates to Low Voltage Electrical Apparatus, particularly a kind of link assembly of circuit breaker.
Background technology
At present, the operating mechanism of circuit breaker is owing to needing the part of assembling more, and the syndeton between parts is comparatively complicated, therefore the production efficiency causing manual assembly process is low, homogeneity of product is poor, and the complicated annexation between parts also cannot realize operating mechanism and carry out Automated assembly by equipment.The labyrinth of the parts such as handle, connecting rod, tripping device simultaneously in operating mechanism not only reduces the service behaviour that efficiency of assembling reduces circuit breaker simultaneously.
Utility model content
The purpose of this utility model is the defect overcoming prior art, the link assembly of the circuit breaker providing a kind of stable connection, sound construction, assembling easy.
For achieving the above object, the utility model have employed following technical scheme:
A link assembly for circuit breaker, described link assembly 3 can drive the movable connector 4 of circuit breaker to rotate, and link assembly 3 comprises the connecting rod 310 and overlap joint feature 330 that are connected and the girth member 320 be embedded in connecting rod 310 and overlap joint feature 330.The end of described girth member 320 is placed in overlap joint feature 330, and the end of girth member 320 can contact with movable connector 4 and connects, thus the girth member 320 of link assembly 3 promotes movable connector 4 and rotates in breaker closing process.
Further, the two ends of described girth member 320 are respectively equipped with the first erection column 323 and the second erection column 324 for location and installation, the first described erection column 323 is arranged in connecting rod 310, the second described erection column 324 can be placed in the overlap joint breach 331 on overlap joint feature 330 sidewall, and the end of described movable connector 4 contacts with the second erection column 324 and connects.
Further, described overlap joint breach 331 comprises the faying surface 336 be arranged on its sidewall, described overlap joint feature 330 is also provided with the through hole 335 for installing the second erection column 324 with interior corresponding to overlap joint breach 331, described through hole 335 is parallel to through hole faying surface 336 and arranges and the side of through hole 335 is connected with faying surface 336, thus makes the second erection column 324 can protrude faying surface 336 to be placed in overlap joint breach 331.
Further, the second described erection column 324 is polygon prism structure, and the wherein one side of the second erection column 324 of polygon prism structure can contact the second faying surface 325 connected with the movable connector 4 of circuit breaker.
Further, the cross section that described second erection column 324 protrudes the part of faying surface 336 is triangle.
Further, the end of described movable connector 4 is provided with clinch 440, described clinch 440 is provided with and can coordinates with the second faying surface 325 the first faying surface 441 contacting and connect, and the scope of overlap joint angle α that the first faying surface 441 and the second faying surface 325 are formed when breaker open operation state is 20 ° to 35 °.
Further, described girth member 320 comprises interconnective first reinforcing portion 321 and the second reinforcing portion 322, the surface of described connecting rod 310 and overlap joint feature 330 offers interconnective girth member mounting groove 311 respectively and extends mounting groove 334, the first described reinforcing portion 321 and the second reinforcing portion 322 difference Matching installation are at girth member mounting groove 311 and extend in mounting groove 334, and the first erection column 323 is arranged in the blind hole 315 of girth member mounting groove 311 end, the second described erection column 324 is arranged in the through hole 335 of extension mounting groove 334 end.
Further, described connecting rod 310 is staggered floor construction with overlap joint feature 330, thus make girth member mounting groove 311 and extend mounting groove 334 staggered floor to arrange, the first described reinforcing portion 321 and the second reinforcing portion 322 for staggered floor construction and can distinguish Matching installation girth member mounting groove 311 with extend in mounting groove 334.
Further, the edge of described overlap joint breach 331 is also provided with the overlap joint limited wall 332 that can be connected with the ends contact of movable connector 4, and faying surface 336, overlap joint limited wall 332 and the second erection column 324 can coordinate the end holding spacing movable connector 4 jointly.
Further, the end of described second erection column 324 contacts with overlap joint limited wall 332 and connects.
The link assembly of circuit breaker of the present utility model promotes movable connector by the end of girth member, achieves link assembly and is connected with the stabilized driving of movable connector, ensure the reliability of making process.In addition, by being embedded among link assembly by girth member, improve the intensity of link assembly, further increasing the stability of link assembly.
Accompanying drawing explanation
Fig. 1 is the separating brake structural representation of a kind of embodiment of the present utility model;
Fig. 2 is the structural representation of movable connector of the present utility model;
Fig. 3 is the structural representation of a kind of embodiment of link assembly of the present utility model;
Fig. 4 is connecting rod of the present utility model and overlap joint feature connecting installation structure schematic diagram;
Fig. 5 is the structural representation of a kind of embodiment of girth member of the present utility model;
Fig. 6 is the structural representation of a kind of embodiment of push-rod assembly of the present utility model;
Fig. 7 is mounting structure schematic diagram of the present utility model;
Fig. 8 is the mounting structure schematic diagram of the second spring of the present utility model;
Fig. 9 is the mounting structure schematic diagram of the 3rd spring of the present utility model;
Figure 10 is the mounting structure schematic diagram of the second limit features of the present utility model;
Figure 11 is the structural representation of the another kind of embodiment of link assembly of the present utility model;
Figure 12 is the structural representation of the another kind of embodiment of push-rod assembly of the present utility model;
Figure 13 is the separating brake structural representation of another kind of embodiment of the present utility model;
Figure 14 is the combined floodgate structural representation of a kind of embodiment of the present utility model;
Figure 15 is the combined floodgate structural representation of another kind of embodiment of the present utility model;
Figure 16 is the structural representation of the another kind of embodiment of girth member of the present utility model;
Figure 17 is the structural perspective of the another kind of embodiment of link assembly of the present utility model;
Figure 18 is the structural representation of another embodiment of push-rod assembly of the present utility model;
Figure 19 is the structural representation of handle of the present utility model;
Figure 20 is the partial structurtes schematic diagram of Fig. 1;
Figure 21 is the partial structurtes schematic diagram of Figure 14;
Figure 22 is the structural representation of a kind of embodiment of the second spring of the present utility model;
Figure 23 is the separating brake scheme of installation of a kind of embodiment of the second spring of the present utility model;
Figure 24 is the combined floodgate scheme of installation of a kind of embodiment of the second spring of the present utility model.
Embodiment
Provide embodiment of the present utility model below in conjunction with accompanying drawing 1 to 24, further illustrate the link assembly embodiment of circuit breaker of the present utility model.The link assembly of circuit breaker of the present utility model is not limited to the description of following examples.
Circuit breaker of the present utility model comprises the handle 2 be arranged in housing 1, link assembly 3, movable connector 4, push-rod assembly 5, bimetal leaf 6, electromagnetic system 7 and fixed contact therefor 8.In Fig. 1, one end of link assembly 3 drives with handle 2 and is connected, the other end and the movable connector 4 of link assembly 3 overlap, and handle 2 can drive movable connector 4 to rotate and then be contacting and separating with fixed contact therefor 8 and realize the closed of circuit breaker and disjunction by drivening rod assembly 3.And, the first spring 200 resetted for driving handle 2 is installed between handle 2 and housing 1, the second spring 300 for positioning linkage rod assembly 3 is installed between link assembly 3 and housing 1, the 3rd spring the 400, three spring 400 be also provided with between movable connector 4 and housing 1 for driving movable connector 4 to reset is arranged between handle 2 and electromagnetic system 7.One end of described push-rod assembly 5 can drive with the electromagnetic system 7 for instantaneous protection and the bimetal leaf for delay protection effect 6 and be connected; the other end of push-rod assembly 5 can contact with link assembly 3 and connect; bimetal leaf 6 and electromagnetic system 7 can make push-rod assembly 5 be placed in trip positions, thus handle 2 cannot be closed a floodgate.Handle of the present utility model is directly driven with movable connector by link assembly and is connected, and decreases the part of operating mechanism, simplifies the mounting structure of circuit breaker, and then improve efficiency of assembling and stability.Further employing movable connector 4 overlaps with positioning linkage rod assembly 3, push-rod assembly 5 contacts with link assembly 3 mode connected, realize the Automated assembly that stacked structure is convenient to circuit breaker, ensure that the stability of link assembly and movable connector drive actions simultaneously.
Link assembly 3 of the present utility model and movable connector 4 overlap and refer to being fastened and connected of not having buckle, axis hole etc. similar between link assembly 3 and movable connector 4, be only that the clinch 440 of movable connector 4 is placed in the overlap joint breach 331 of link assembly 3, the stratification position relation of this overlap joint is particularly conducive to automation and installs and not high to the required precision of installing.Particularly, the end of movable connector 4 is provided with and contacts with the overlap joint breach 331 on link assembly 3 clinch 440 connected, and overlap joint breach 331 side is provided with protruding features.Drive in the process of breaker closing at handle 2, handle 2 drivening rod assembly 3 moves, clinch 440 along overlap joint breach 331 relative movement and spacing by protruding features time, protruding features can interact with the end of clinch 440 and can promote clinch 440 and move thus drive movable connector 4 to rotate combined floodgate.And the opposite side edge overlapping breach 331 is also provided with for supporting and the overlap joint limited wall 332 of spacing clinch 440 movement, overlap joint breach 331 also comprises and is arranged on overlap joint breach 331 sidewall for being connected with protruding features by overlap joint limited wall 332 and being used for the faying surface 336 of spacing clinch 440, and then make clinch 440 be placed in the overlap joint breach 331 be jointly made up of faying surface 336, protruding features and overlap joint limited wall 332, ensure that the reliability of overlap joint.Overlap joint between link assembly 3 and movable connector 4 can be that link assembly 3 is overlapped on above movable connector 4, also can be that movable connector 4 is overlapped on above link assembly 3; Preferred movable connector 4 is overlapped on above link assembly 3, is convenient to install with coordinating of other element.
Push-rod assembly 5 of the present utility model and link assembly 3 do not have corresponding buckle annexation yet, push-rod assembly 5 is when breaker open operation and combined floodgate normally work, bimetal leaf 6 and electromagnetic system 7 all do not act on push-rod assembly 5, without interacting between push-rod assembly 5 and link assembly 3 yet.When there is time delay or transient fault in circuit breaker under "on" position, bimetal leaf 6 and electromagnetic system 7 can act on push-rod assembly 5 respectively and make it be in trip positions, push-rod assembly 5 applies active force when trip positions to link assembly 3 and moves it, particularly, the promotion face 510 of push-rod assembly 5 end directly acts on mutually with the edge of link assembly 3 end thus link assembly 3 is moved.The movement of link assembly 3 destroys the balance that the link assembly 3 under "on" position overlaps with movable connector 4, and then makes to be separated reset between link assembly 3 with movable connector 4 and complete trip action, and open position got back to by handle 2.
Particularly, the handle 2 in Fig. 1 is rotatably installed in one end of the operation sidewall 110 of housing 1, and described operation sidewall 110 is arranged on housing 1 top for mounting handle 2, thus makes user can carry out on/off switch operation on operation sidewall 110.In housing 1 corresponding to operation sidewall 110 other end, movable connector 4 is installed, described link assembly 3 is arranged along operation sidewall 110, and one end of link assembly 3 is arranged on the rotating side 210 of handle 2, the lapping ends of the overlap joint breach 331 that the other end of link assembly 3 is provided with and movable connector 4.Rotating side 210 in Figure 19 is arranged on the top of handle 2, the bottom of described handle 2 is corresponding with the bottom surface of housing 1 to be arranged, and rotating side 210 offers the handle drives hole 211 that can be connected with link assembly 3 hole axle, the end of described link assembly 3 contacts with rotating side 210 and connects.Preferably, the end of connecting rod 310 can contact with rotating side 210 when handle 2 is in separating brake and closing position and connect.In addition, side is also provided with side breach 212 to rotating side 210, and described side breach 212 is lower than rotating side 210, and side breach can increase the installation bearing strength of the first spring; Side is also provided with lateral projections 213 to rotating side 210, described lateral projections 213 higher than rotating side 210, lateral projections can with for coordinating the lid (not shown) of installing to contact with housing, improve handle install stability.Handle and movable connector mounting structure are stablized, and the while that the mounting means of link assembly and handle being easy, in the process of divide-shut brake, rotating side ensure that the stability of connecting rod action.
Described movable connector 4 is rotatably mounted on the side bottom housing 1 and is placed between bimetal leaf 6 and fixed contact therefor 8.Described push-rod assembly 5 is arranged between movable connector 4 and electromagnetic system 7, one end of push-rod assembly 5 can be connected with the striker rods contacts of electromagnetic system 7, below the end that the other end of push-rod assembly 5 is placed in movable connector 4 and contact between the base plane of housing 1 and with the edge of the overlap joint breach 331 of link assembly 3 and connect.The rationally distributed especially link assembly of mounting structure of circuit breaker and the mounting layer aggregated(particle) structure of handle and push-rod assembly and movable connector clear, improve efficiency of assembling, simultaneously between each parts, annexation is simple, is convenient to realize automatic assembling.
Especially, be provided with for the first spacing limit features 101 and the second limit features 102 in described housing 1, the first wherein said limit features 101 is arranged on the side bottom housing 1, first limit features 101 can to contact away from the edge of fixed contact therefor 8 side with movable connector 4 and connect, 3rd spring 400 release can time pull movable connector 4 away from fixed contact therefor 8 and by first limit features 101 institute spacing, preferably, the first limit features 101 is rectangle and the projection be obliquely installed or cross section are circular cylinder for cross section.The second limit features 102 in Figure 10 is arranged on edge bottom housing 1 and corresponding with the end of bimetal leaf 6, the end of described push-rod assembly 5 is driven with bimetal leaf 6 by pull bar 601 and is connected, described pull bar 601 is placed in the top of movable connector 4, one end and the push-rod assembly 5 hole axle of pull bar 601 other end that is rotatably connected is connected with the side contacts of bimetal leaf 6 away from movable connector 4, and can contact with the second limit features 102 when the end of pull bar 601 slides to the end of bimetal leaf 6 and connect.Limit features improves the reliability of circuit breaker use procedure, simultaneously less demanding to assembly precision, is convenient to Automated assembly.In addition, the shape of the first limit features can be carried out stable effectively spacing to movable connector, the second limit features improves stability during delay protection.
Movable connector 4 in Fig. 2 offers the rotation axis accommodation hole 420 for rotating installation, the two ends of movable connector 4 are respectively equipped with armature contact portion 410 and clinch 440, clinch 440 is plane, movable connector 4 is also provided with the spring fitting groove 430 (as shown in Figure 2) for installing the 3rd spring 400 and/or spring mounting hole 450 (as shown in Figure 9).The edge of side relative to fixed contact therefor 8, described armature contact portion 410 is provided with contact projection 411.Armature contact portion 410 is placed between fixed contact therefor 8 and bimetal leaf 6, and clinch 440 overlaps with the overlap joint breach 331 in the end sidewalls of link assembly 3, and clinch 440 is placed in overlap joint breach 331.Especially, rotation axis accommodation hole 420 is opened in the one end near clinch 440, thus make the distance of rotation axis accommodation hole 420 to clinch 440 end be less than the distance of end, rotation axis accommodation hole 420 to armature contact portion 410, and spring fitting groove 430 or spring mounting hole 450 are arranged between the end of rotation axis accommodation hole 420 and clinch 440, wherein spring fitting groove 430 is opened on the edge of movable connector 4 away from fixed contact therefor 8 side.In addition, movable connector 4 is Metal plate, and shape is strip, and the movable connector of strip is easy to processing and can at utmost utilizes raw sheet material, and is easy to install.Rotation axis accommodation hole offer the contact that position enhances on the one hand movable connector and fixed contact therefor, add the spacing when separating brake between movable connector and fixed contact therefor on the other hand.Mounting means with time slot or hole adds the applicability that movable connector is installed.Preferably, the distance of rotation axis accommodation hole 420 to clinch 440 end and the ratio of distances constant of end, rotation axis accommodation hole 420 to armature contact portion 410 are 1:2, and the proportionate relationship that rotation axis accommodation hole offers position is easy to processing, and ensure that stability in use.
Link assembly 3 in Fig. 3 comprises the connecting rod 310 and overlap joint feature 330 that are connected, and is embedded the girth member 320 in connecting rod 310 and overlap joint feature 330, described connecting rod 310 offers the girth member mounting groove 311 for installing girth member 320.One end of connecting rod 310 is provided with the connecting rod driving shaft 312 for being rotatably connected with handle 2 hole axle, and girth member mounting groove 311 and connecting rod driving shaft 312 are separately positioned on end face and the bottom surface of connecting rod 310.The side of the other end of connecting rod 310 is connected with the end of overlap joint feature 330, and connecting rod 310 is staggered floor construction with overlap joint feature 330, and overlap joint feature 330 is convenient to movable connector 4 lower than connecting rod 310 and is overlapped in overlap joint feature 330, the sidewall of overlap joint feature 330 is provided with the overlap joint breach 331 overlapped with the clinch 440 of movable connector 4, clinch 440 can overlap joint breach 331 in relative movement, the side of described overlap joint breach 331 can contact with clinch 440 protruding features connected when being provided with combined floodgate, the edge of overlap joint breach 331 is provided with the overlap joint limited wall 332 contacting with clinch 440 and connect, overlap joint breach 331 also comprises the faying surface 336 for being connected with overlap joint limited wall 332 by protruding features, the overlap joint limited wall 332 at overlap joint breach 331 wherein edge, side is also provided with the loading end 333 that can be connected with the ends contact of push-rod assembly 5.Preferably, overlap joint breach 331 side is provided with protruding features, the edge of the opposite side of overlap joint breach 331 and the edge of overlap joint breach 331 side corresponding to the bottom surface of housing 1 are provided with and overlap limited wall 332, and the top wherein overlapping the breach 331 overlap joint limited wall 332 that arrange corresponding to the bottom surface of housing 1 is also provided with loading end 333.The overlap joint end end face of feature 330 is fixedly connected with the bottom surface, end of connecting rod 310, and the bottom surface, end that overlap joint feature 330 is connected with connecting rod 310 is also installed with the spring fitting feature 313 be connected with the second spring 300.Especially, one end of girth member 320 is installed in the end of girth member mounting groove 311, the other end of girth member 320 is installed in overlap in breach 331 and protrude faying surface 336 and arranges, the part that girth member 320 is placed in overlap joint breach 331 is described protruding features, and the part that girth member 320 is placed in overlap joint breach 331 can contact with clinch 440 and connects.Faying surface 336, overlap joint limited wall 332 and protruding features together constitute the overlap joint breach 331 for holding spacing clinch 440.The edge of the second erection column and faying surface and overlap limited wall and jointly coordinate the overlap joint breach defined for spacing, clinch can slide mobile in overlap joint breach, and the edge of the second erection column withstands clinch all the time in making process, ensure that the stability of making process.Meanwhile, the top of overlap joint breach 331 is provided with opening, and the bottom of overlap joint breach 331 is corresponding with the bottom surface of housing 1 and be provided with and overlap limited wall 332, overlaps limited wall and is only convenient to movable connector from bottom support clinch and installs from opening part.In addition, spring fitting feature 313 can be cylindrical shape or crotch-shaped, and the second described spring 300 can be the corresponding torsion spring that arranges or extension spring or sheet spring.
Particularly, two kinds of embodiments of link assembly 3 as in figs. 3 and 11, the link assembly 3 in each embodiment includes connecting rod 310 and overlap joint feature 330, also comprises girth member 320.
Wherein a kind of embodiment of link assembly 3 as shown in Figure 3, link assembly 3 is provided with the spring fitting feature 313 of cylindrical shape, and the spring fitting feature 313 of cylindrical shape is arranged on the base plane side of the relative housing 1 of link assembly 3, the second described spring 300 for be arranged on spring fitting feature 313 and housing 1 edge between torsion spring, be arranged in the middle part of torsion spring on housing, the spring leg of one end is connected with housing, and the other end is connected with the spring fitting feature 313 in the hasp feature 330 of link assembly 3.In addition, the second spring 300 in the present embodiment can also be arranged on the extension spring between spring fitting feature 313 and housing 1 as shown in Figure 8.
The embodiment of another kind of link assembly 3 as shown in figure 11, link assembly 3 is provided with the spring fitting feature 313 of crotch-shaped, and the spring fitting feature 313 of the crotch-shaped in Figure 13 is arranged on the side of the relative push-rod assembly 5 of link assembly 3, second spring 300 for be arranged on spring fitting feature 313 and housing 1 bottom between extension spring, especially, when second spring 300 is for extension spring, the end that the second spring 300 and housing 1 are fixed coaxially is connected with the end that the 3rd spring 400 and housing 1 are fixed.
Second spring 300 of the present utility model can also adopt sheet spring as shown in figure 22, one end of described spring is the spring link 301 be fixedly connected with housing 1, the other end of sheet spring contacts the spring end 302 connected, and sheet spring is placed between the madial wall of link assembly 3 and shell 1.Shown in Figure 23 and Figure 24 be the second spring 300 be sheet spring time mounting structure in housing 1, wherein Figure 23 is the mounting structure of separating brake situation, separating brake time slice spring contacts with link assembly 3 and is connected, Figure 24 is the mounting structure of combined floodgate situation, combined floodgate time slice spring and link assembly 3 are discontiguous, thus make when product breaks down, the contact force that push-rod assembly 5 will overcome when promoting link assembly 3 only has the power of the 3rd spring 400, and there is no the power of sheet spring, and then improve sensitivity and the accuracy of push-rod assembly 5 action.
Link assembly structure of the present utility model simply improves its installation effectiveness, and drives to be connected with movable connector by the mode of overlap joint and ensure that connective stability.Girth member ensure that the working strength of link assembly simultaneously, further increases the anti-extrusion bending ability of link assembly.In addition, faying surface is convenient to coordinate with movable connector install with the project organization of overlap joint limited wall, can effectively stablize spacing to clinch.
Connecting rod 310 in Fig. 4 offers girth member mounting groove 311, one end of described girth member mounting groove 311 is mounting groove blind end 314 other end is mounting groove open end 316, described mounting groove blind end 314 is provided with the blind hole 315 being placed in connecting rod driving shaft 312 inside, described mounting groove open end 316 is corresponding with the extension mounting groove 334 that overlap joint feature 330 surface is offered to be connected, the end of described extension mounting groove 334 extends to overlap joint breach 331 and this end is provided with the through hole 335 being parallel to faying surface 336 surface and arranging, the side of described through hole 335 is connected with faying surface 336.Especially, mounting groove blind end 314 is obtuse angle with the angle of mounting groove open end 316.The angular relationship of mounting groove blind end and mounting groove open end is convenient to process and is installed, and improves the installation strength of girth member simultaneously.
Girth member 320 in Fig. 5 comprises interconnective first reinforcing portion 321 and the second reinforcing portion 322, the end of described first reinforcing portion 321 and the second reinforcing portion 322 also vertical the first erection column 323 and the second erection column 324 be provided with for location and installation respectively, first reinforcing portion 321 and the second reinforcing portion 322 difference Matching installation are at girth member mounting groove 311 and extend in mounting groove 334, and the first reinforcing portion 321 is broken line type, second reinforcing portion 322 is L-type, the correspondence of the two vertically connects, the first described erection column 323 interference is arranged in blind hole 315, the second described erection column 324 interference is arranged in through hole 335, the edge protrusion faying surface 336 of the second erection column 324 arranges thus can contact with clinch 440 in the process of closing a floodgate and connects.The mounting means of girth member is easy and efficiency is higher, can realize quick assembling and install.
Particularly, the second described erection column 324 can be placed in the overlap joint breach 331 on overlap joint feature 330 sidewall, and the end of described movable connector 4 contacts with the second erection column 324 and connects.Overlap joint breach 331 comprises the faying surface 336 be arranged on its sidewall, described overlap joint feature 330 is also provided with the through hole 335 for installing the second erection column 324 with interior corresponding to overlap joint breach 331, described through hole 335 is parallel to through hole faying surface 336 and arranges and the side of through hole 335 is connected with faying surface 336, thus makes the second erection column 324 can protrude faying surface 336 to be placed in overlap joint breach 331.Especially, second erection column 324 is polygon prism structure, and the wherein one side of the second erection column 324 of polygon prism structure can contact the second faying surface 325 connected with the movable connector 4 of circuit breaker, and the cross section that the second erection column 324 protrudes the part of faying surface 336 is triangle.In addition, the end of the second erection column 324 contacts with the overlap joint limited wall 332 at overlap joint breach 331 edge and connects.Second erection column promotes movable connector and ensures that link assembly drives the stability of movable connector rotation, girth member mounting structure is simply convenient to assembling simultaneously, improve installation effectiveness, and triangular structure is stablized the end be convenient to movable connector and is coordinated, and not easily makes lap-joint come off and improves reliability.
Girth member 320 of the present utility model comprises two kinds of embodiments, wherein a kind of embodiment as shown in Figure 5, in Fig. 5, the first reinforcing portion 321 of girth member 320 and the second reinforcing portion 322 staggered floor are arranged, the girth member 320 that staggered floor is arranged in the link assembly 3 that arranges at staggered floor construction as shown in Figure 3 of Matching installation, thus can improve the stability of installation.In addition, another kind of embodiment as shown in figure 16, in Figure 16, the first reinforcing portion 321 of girth member 320 and the second reinforcing portion 322 be arranged in parallel, as shown in figure 17, the girth member 320 in the present embodiment is convenient to install and ensure that the edge of the protrusion faying surface 336 of the second erection column 324 has sufficient intensity for the girth member 320 be arranged in parallel and the mounting structure of link assembly 3.
Fig. 1 and 14 is separating brake and the combined floodgate structural representation of a kind of embodiment of the utility model, and Figure 13 and 15 is separating brake and the combined floodgate structural representation of the another kind of embodiment of the utility model.The difference of two kinds of embodiments is the structure of push-rod assembly 5 and the shape of the second spring 300 and installation site.
As shown in Figure 20 and Figure 21, the sidewall of the clinch 440 of described movable connector 4 is provided with the first faying surface 441, described link assembly 3 is provided with and can contacts the second faying surface 325 connected with the first faying surface 441, and the scope of overlap joint angle α that circuit breaker is formed between the first faying surface 441 and the second faying surface 325 in divide-shut brake process is 0 ° to 35 °.Particularly, the second described faying surface 325 is arranged on the sidewall of the second erection column 324, and clinch 440 can be mobile in overlap joint breach 331.Second faying surface 325 is arranged relative to the sidewall slope of link assembly 3 end, and the corresponding end of the second faying surface 325 and the first faying surface 441 contacts when breaker open operation state and connects.Especially, the overlap joint angle α that the first faying surface 441 and the second faying surface 325 are formed when breaker closing state is 0 °.In addition, the scope of overlap joint angle α that the first faying surface 441 and the second faying surface 325 are formed when breaker open operation state is 20 ° to 35 °.Preferably, the overlap joint angle α that the first faying surface 441 and the second faying surface 325 are formed when breaker open operation state is 35 °.First faying surface and the second faying surface ensure the accuracy of divide-shut brake process.Simultaneously by the angular range between restriction first faying surface and the second faying surface, change the tripping force of product, make circuit breaker be easy to operation.And the setting position of the first faying surface and the second faying surface is simply convenient to process and is installed, improve efficiency of assembling, ensure the efficient stable of making process further.
One end of push-rod assembly 5 in Fig. 6 trigger unit 501 other end connected can be driven to be can contact the drive division 502 connected with link assembly 3 with electromagnetic system 7 and bimetal leaf 6.Described drive division 502 is provided with the promotion face 510 that to contact with link assembly 3 and connect and for push-rod assembly 5 being arranged on the installation axle hole 550 on housing 1.Described trigger unit 501 is provided with Time-delayed trigger hole 520, interlock axis hole 530 and instantaneous triggering wall 540.Particularly, push-rod assembly 5 is rotatably connected by the bottom of installation axle hole 550 with housing 1, bimetal leaf 6 and electromagnetic system 7 are separately positioned on the both sides of push-rod assembly 5, and instantaneous triggering wall 540 is arranged on trigger unit 501 sidewall corresponding with electromagnetic system 7, Time-delayed trigger hole 520 is arranged on and is connected with the perpendicular sidewall be connected of instantaneous triggering wall 540 can drive with bimetal leaf 6.Time-delayed trigger hole and instantaneous triggering wall, achieve push-rod assembly and be connected with electromagnetic system and the easy of bimetal leaf, improves sensitivity and the accuracy of instantaneous protection and delay protection.Meanwhile, instantaneous triggering wall and time delay contact hole setting position are convenient to coordinate and are installed, and improve the installation effectiveness of push-rod assembly.
Especially, described instantaneous triggering wall 540 is trapezoidal shape, and trapezium structure increases the contact area with electromagnetic system lance, ensure that the accuracy of instantaneous protection process.The sidewall of described trigger unit 501 is also provided with contiguous block 503, described Time-delayed trigger hole 520 is opened in the end of contiguous block 503, and driven with bimetal leaf 6 by pull bar 601 between Time-delayed trigger hole 520 with bimetal leaf 6 and be connected, contiguous block 503 also offers and can be connected the interlock axis hole 530 unlocked for mechanism with the base plane of housing 1.In addition, contiguous block 503 is also provided with breach feature 504, described Time-delayed trigger hole 520 is arranged in breach feature, and the sidewall of breach feature 504 can connect with spacing contact the in the end of pull bar 601.Contiguous block improves the stability that Time-delayed trigger hole is connected with pull bar, and breach feature can be carried out spacing to pull bar, ensures job stability.
Shown in Fig. 6, Figure 12 and Figure 18 is three kinds of embodiments of push-rod assembly 5, wherein a kind of embodiment of push-rod assembly 5 as shown in Figure 6, the trigger unit 501 of push-rod assembly 5 is connected with drive division 502 and forms the push-rod assembly 5 of T-type structure, the horizontal component of the push-rod assembly 5 of T-type structure is drive division 502, vertical component is trigger unit 501, and installation axle hole 550 and promotion face 510 are separately positioned on the two ends of the drive division 502 of horizontal component.The two ends that installation axle hole and promotion face are arranged on horizontal component are convenient to using of push-rod assembly and install, and improve installation effectiveness.
The embodiment of another kind of push-rod assembly 5 as shown in figure 12, the trigger unit 501 of push-rod assembly 5 is connected with drive division 502 and forms the push-rod assembly 5 of broken line type structure, described drive division 502 is triangular structure and end face is provided with the promotion face 510 of circular arc, described installation axle hole 550 is arranged on the junction of trigger unit 501 and drive division 502, and the angle between trigger unit 501 and drive division 502 is obtuse angle, in the present embodiment, the mounting means of push-rod assembly 5 as shown in figure 13, push-rod assembly 5 is arranged between electromagnetic system 7 and bimetal leaf 6, meander line structure push-rod assembly structure is simply convenient to processing and is used.
The embodiment of another push-rod assembly 5 as shown in figure 18, push-rod assembly 5 wherein in Figure 18 is with the difference of the push-rod assembly 5 in Figure 12, in Figure 18, the end face of the drive division 502 of push-rod assembly 5 is provided with the promotion face 510 of plane, and forms angle between the promotion face of plane 510 and drive division 502.The promotion face of plane ensure that the stability and accuracy that contact with link assembly.
The utility model also comprises a kind of assembly method of circuit breaker, as being provided with handle 2, link assembly 3, movable connector 4, push-rod assembly 5, bimetal leaf 6, electromagnetic system 7 and fixed contact therefor 8 in the housing 1 of the circuit breaker in Fig. 7.Specifically comprise the following steps:
A. be arranged in housing 1 by handle 2, handle 2 can rotate relative to housing 1;
B. be arranged in housing 1 by link assembly 3 and push-rod assembly 5, wherein push-rod assembly 5 is arranged on the side of electromagnetic system 7, and one end of link assembly 3 drives with handle 2 and is connected, and the other end of link assembly 3 contacts with push-rod assembly 5 and connects;
C. be rotatably installed in housing 1 by movable connector 4, one end and the link assembly 3 of movable connector 4 overlap, and the end that push-rod assembly 5 is contacted with link assembly 3 is placed between the bottom surface of movable connector 4 and housing 1.The utility model assembles with stacked each element of mode to circuit breaker of order the easy installation making circuit breaker, improves installation effectiveness.
Wherein, can first push-rod assembly 5 be rotatably installed in housing 1 in stepb, again link assembly 3 is arranged in housing 1, and one end of the movable connector 4 in step c vertically carries out from top to bottom installing and overlapping with link assembly 3 relative to the bottom surface of housing 1.Vertically arranged mode is convenient to the location and installation of link assembly from top to bottom, improves installation effectiveness.In addition, when step a mounting handle 2, the first spring 200 being used for reseting handle 2 is arranged between housing 1 and handle 2; When step b, can first push-rod assembly 5 be rotatably installed in housing 1; Again link assembly 3 to be arranged in housing 1 and the second spring 300 being used for positioning linkage rod assembly 3 is arranged between housing 1 and link assembly 3; When movable connector 4 is installed when step c, the two ends of the 3rd spring 400 of the movable connector 4 that is used for resetting are separately fixed at movable connector 4 and housing 1.
In stepb one end of push-rod assembly 5 to be driven with bimetal leaf 6 by pull bar 601 and be connected, the mode that wherein one end passing hole axle of pull bar 601 connects is connected with the end of push-rod assembly 5, the other end of pull bar 601 abuts in the side of bimetal leaf 6 away from push-rod assembly 5, thus make bimetal leaf 6 can pull pull bar 601 action when bending, and pull bar 601 is across the top being arranged on movable connector 4.
Step c is when rotating installation by movable connector 4 with housing 1, rotation axis accommodation hole 420 as rotating fulcrum is arranged on movable connector 4 one end near link assembly 3, thus movable connector 4 is divided into contact the short portion and the long portion that arrange corresponding to fixed contact therefor 8 that connect with link assembly 3, one end of 3rd spring 400 is fixedly mounted in short portion, and described long portion is arranged on the side for the first limit features 101 of spacing movable connector 4 reset in housing 1.Movable connector installation site is accurate, is convenient to orientation assemble.
Can first by the first installation shaft 103 for installing push-rod assembly 5, for installing the second installation shaft 104 of movable connector 4 and the bottom surface for the vertical fixed installation housing 1 of the 3rd installation shaft 105 of fixing the 3rd spring 400 one end, can first girth member 320 interference be arranged on before step a in connecting rod 310 and overlap joint feature 330 simultaneously before step a.Further, can again arc control device 106 and bimetal leaf adjustment screw 107 be arranged in housing 1 after step c.
Preferably, step a to step c can adopt automatic machinery to carry out assembled in sequence.The assembling mode of automation can further improve packaging efficiency
The action relationships of circuit breaker of the present utility model in divide-shut brake process is as described below:
In product making process, stir the restoring force rotation that handle 2 makes it overcome the first spring 200, the drivening rod assembly 3 of handle 2 moves to movable connector 4 side, due to the pulling force effect of the second spring 300, link assembly 3 contacts with movable connector 4 and overlaps, thus promotion movable connector 4 rotates along rotation axis accommodation hole 420, draw close until closed to the fixed contact therefor 8 on electromagnetic system 7 to make movable connector 4.Now, movable connector 4 again with movable connector 4 with fixed contact therefor 8 binding site for fulcrum continues movement until the 2-in-1 lock of handle is complete, the 3rd spring 400 overcomes movable connector 4 work done all the time and completes energy storage in the process.
In the normal separating brake process of product, stir handle 2 thus drivening rod assembly 3 moves to handle 2 side, overlap joint between link assembly 3 and movable connector 4 is destroyed, movable connector 4 the 3rd spring 400 release can act under reset and be separated with fixed contact therefor 4, and then complete normal sub-switching operation.
In product tripping separating brake process; play the electromagnetic system 7 of instantaneous protection effect and play the bimetallic 6 of delay protection effect after respective fault is triggered; all will utilize push-rod assembly 5 drivening rod assembly 3 that circuit breaker operation mechanism is unlocked; movable connector 4 the 3rd spring 400 release can act under reset; and stop after the stop being subject to the first limit features 101, handle 2 resets under the effect of the first spring 200 simultaneously.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. the link assembly of a circuit breaker, described link assembly (3) can drive the movable connector (4) of circuit breaker to rotate, and it is characterized in that: link assembly (3) comprises the connecting rod (310) and overlap joint feature (330) that are connected and the girth member (320) be embedded in connecting rod (310) and overlap joint feature (330);
The end of described girth member (320) is placed in overlap joint feature (330), and the end of girth member (320) can contact with movable connector (4) and connect, thus the girth member (320) of link assembly (3) promotes movable connector (4) rotation in breaker closing process.
2. the link assembly of circuit breaker according to claim 1, it is characterized in that: the two ends of described girth member (320) are respectively equipped with the first erection column (323) for location and installation and the second erection column (324), described the first erection column (323) is arranged in connecting rod (310), described the second erection column (324) can be placed in the overlap joint breach (331) on overlap joint feature (330) sidewall, and the end of described movable connector (4) contacts with the second erection column (324) and connects.
3. the link assembly of circuit breaker according to claim 2, it is characterized in that: described overlap joint breach (331) comprises the faying surface (336) be arranged on its sidewall, described overlap joint feature (330) is also provided with the through hole (335) for installing the second erection column (324) with overlap joint interior corresponding to (331) breach, described through hole (335) is parallel to through hole faying surface (336) setting and the side of through hole (335) is connected with faying surface (336), thus make the second erection column (324) that faying surface (336) can be protruded to be placed in overlap joint breach (331).
4. the link assembly of circuit breaker according to claim 3, it is characterized in that: described the second erection column (324) is polygon prism structure, and the wherein one side of second erection column (324) of polygon prism structure can contact the second faying surface (325) connected with the movable connector of circuit breaker (4).
5. the link assembly of circuit breaker according to claim 4, is characterized in that: the cross section that described second erection column (324) protrudes the part of faying surface (336) is triangle.
6. the link assembly of circuit breaker according to claim 4, it is characterized in that: the end of described movable connector (4) is provided with clinch (440), described clinch (440) is provided with and can coordinates with the second faying surface (325) the first faying surface (441) contacting and connect, and the scope of overlap joint angle α that the first faying surface (441) and the second faying surface (325) are formed when breaker open operation state is 20 ° to 35 °.
7. the link assembly of circuit breaker according to claim 2, it is characterized in that: described girth member (320) comprises interconnective first reinforcing portion (321) and the second reinforcing portion (322), the surface of described connecting rod (310) and overlap joint feature (330) offers interconnective girth member mounting groove (311) respectively and extends mounting groove (334), described the first reinforcing portion (321) and the second reinforcing portion (322) difference Matching installation are at girth member mounting groove (311) and extend in mounting groove (334), and the first erection column (323) is arranged in the blind hole (315) of girth member mounting groove (311) end, described the second erection column (324) is arranged in the through hole (335) of extension mounting groove (334) end.
8. the link assembly of circuit breaker according to claim 7, it is characterized in that: described connecting rod (310) is staggered floor construction with overlap joint feature (330), thus make girth member mounting groove (311) and extend mounting groove (334) staggered floor to arrange, described the first reinforcing portion (321) and the second reinforcing portion (322) are for staggered floor construction and can distinguish Matching installation at girth member mounting groove (311) with extend in mounting groove (334).
9. the link assembly of circuit breaker according to claim 3, it is characterized in that: the edge of described overlap joint breach (331) is also provided with the overlap joint limited wall (332) that can be connected with the ends contact of movable connector (4), and faying surface (336), overlap joint limited wall (332) and the second erection column (324) can coordinate the end holding spacing movable connector (4) jointly.
10. the link assembly of circuit breaker according to claim 9, is characterized in that: the end of described second erection column (324) contacts with overlap joint limited wall (332) and connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520602356.2U CN204966421U (en) | 2015-08-11 | 2015-08-11 | Link assembly of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520602356.2U CN204966421U (en) | 2015-08-11 | 2015-08-11 | Link assembly of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204966421U true CN204966421U (en) | 2016-01-13 |
Family
ID=55061469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520602356.2U Active CN204966421U (en) | 2015-08-11 | 2015-08-11 | Link assembly of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204966421U (en) |
-
2015
- 2015-08-11 CN CN201520602356.2U patent/CN204966421U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |