CN1309447A - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
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- CN1309447A CN1309447A CN 00104517 CN00104517A CN1309447A CN 1309447 A CN1309447 A CN 1309447A CN 00104517 CN00104517 CN 00104517 CN 00104517 A CN00104517 A CN 00104517A CN 1309447 A CN1309447 A CN 1309447A
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- balladeur train
- circuit breaker
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- main shaft
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Abstract
A switch element moving unit of circuit breaker is composed of a slide frame for supporting the switch element, a slide frame mover for moving the slide frame back and forth, and a beam assembly mounted to case in detachable mode for fixing or separating the slide frame mover. When the circuit breaker is maintaining, it can make the maintenance simpler.
Description
The present invention relates to a kind of primary cut-out, relate in particular to and a kind ofly circuit breaker can be moved to the link position of power supply terminal and face terminals or the mobile device of disconnected position, relate more specifically to a kind of mobile device that can be used for primary cut-out, this mobile device can not move to circuit breaker in the user kit operating breaker under the situation, thereby has strengthened work convenience and operability when the maintenance circuit breaker.
Usually, primary cut-out for example vacuum circuit-breaker is a kind of high-voltage AC breaker, this circuit breaker can connect or deenergization side and load-side between current path, it comprises the switching mechanism that is installed in the vacuum chamber, is used for shielding the electric arc that is produced when the normal connection of certain failure process or disconnecting consumers or electric current.
Referring to figs. 1 to the vacuum circuit-breaker that has traditional mobile device in the above-mentioned circuit breaker of 3 explanations.
Fig. 1 is the structure side view with vacuum circuit-breaker of traditional mobile device, and Fig. 2 is the structure perspective view with vacuum circuit-breaker of traditional mobile device, and Fig. 3 is the STRUCTURE DECOMPOSITION perspective view of traditional mobile device critical piece.
As shown in the figure, the traditional vacuum circuit breaker comprises: terminal frame 1, be installed in the interior front portion of case 12, and be used to support power supply side terminal and load side terminal; Switching mechanism 2 is removably mounted on the terminal frame 1, is used for stube cable or open failure electric current between power supply and load; Switch transmission device 3 is used for console switch mechanism 2; And the actuated element 4 that moves, be used to move forward and backward moving element 5, moving element 5 by a pair of bus-bar 16 and 16 ', switching mechanism 2 and switch transmission device 3 constitute.
The actuated element 4 that moves comprises: axle 6, and level is installed on the part of switch transmission device 3; Cross bar 7 is crooked and stretch out from the two ends of axle 6 and have a projection 7a; Worm gear 8 is fixed on axle 6 middle body by steady pin 18; Worm screw 9 with axle 6 vertical installations, is used for and worm gear 8 engagements; And the handle 10 that is connected with the end of worm screw 9.
Here, the projection 7a that forms on cross bar 7 has vertical elongated hole 11, and under projection 7a was inserted into state in the elongated hole 11 that is installed in the guide body 13 on 20 two inwalls of case, projection was directed.
Among the figure, label 14 expressions come the wheel of mobile moving element 5 by the operation of mobile actuated element 4, the mesh plate of 15 expression engage switch transmission devices 3,16 expressions are from the top bus-bar of mains side received current, 16 ' expression bottom bus-bar is used for providing electric current from top bus-bar 16 to load-side by switching mechanism 2.
In addition, label 17 expressions are installed in the circuit breaker in the switching mechanism 2, are used for open failure electric current when load-side breaks down electric current.
In above-mentioned traditional vacuum circuit breaker, under switching mechanism 2 and state that the terminal of terminal frame 1 is connected, by top bus-bar 16 from mains side for example transformer station provide electric current to the circuit breaker 17 that is installed in switching mechanism 2 inside, the electric current that is so provided is by bottom bus-bar 16 ' be provided for certain loads, for example force device or electronic component.
Under above-mentioned working state of circuit breaker, when when mains side or load-side produce big dangerous currents, consequent electric current is disconnected fast by circuit breaker 17.
Under the state that electric current is disconnected by circuit breaker 17, switching mechanism 2 separates with the maintenance circuit breaker with terminal frame 1.With reference to figure 4A and 4B above-mentioned situation is described.
Fig. 4 A is the sectional side view with circuit breaker terminal connection status (operating state) of traditional mobile device, and Fig. 4 B is the sectional side view with circuit breaker terminal off-state (non operating state) of traditional mobile device.
Shown in Fig. 4 A, under switching mechanism 2 and state that terminal frame 1 is connected, operating personnel open the Qianmen (not shown) of case 12 and the handle 10 that clockwise direction rotates the actuated element 4 that moves.Worm screw 9 is rotated with handle 10, with worm gear 8 rotation backward at a certain angle of worm screw 9 engagements.
Simultaneously, the axle 6 that closely inserts in the worm gear 8 rotates at a certain angle, cross bar 7 rotations that make bending and stretch out from axle 6 two ends.In this state, elongated hole 11 guiding of the guide body 13 on two walls that are installed in switchboard 12 are formed at the projection 7a of cross bar 7 ends, and moving element 5 moves backward.
Therefore, when moving element 5 was moved, shown in Fig. 4 B, bus-bar 16 separated with the terminal of terminal frame 1, and moving element 5 moves backward.
Under moving element 5 state that particularly switching mechanism 2 and terminal frame 1 separate, promptly under the non operating state, circuit breaker is keeped in repair.
When finishing the circuit breaker maintenance, bus-bar 16 and 16 ' be connected with terminal frame 1.At this moment, operating personnel counterclockwise rotate the handle 10 of mobile actuated element 4, thereby move forward moving element 5, shown in Fig. 4 A, bus-bar 16 and 16 ' with the upper terminal of terminal frame 1 and lower terminal engagement.
Traditional vacuum circuit breaker with above-mentioned moving element has following defective:
At first, when keeping in repair circuit breaker owing to fault current, moving element separate with terminal or moving element and situation that terminal is connected under because the user enters based on moving in the case of the operation element that moves and together, therefore very inconvenient.
Secondly, when passing through user's the mobile moving element of operation,, open the Qianmen and the turning handle of case in order to check the displacement of moving element.In this case, brought very big inconvenience.
Therefore, the purpose of this invention is to provide a kind of circuit breaker, it can be under the user enter state in the case, by finish the move operation of moving element in the outside of case, in the operability and the stability of maintenance period enhanced system.
Another object of the present invention provides a kind of circuit breaker, and it can finish the move operation of moving element under the state at the Qianmen of not opening case.
In order to realize above purpose, a kind of mobile device that is used for circuit breaker is provided, this device comprises: case has face terminals and power supply terminal on its rear wall; Switching mechanism is bearing in the case movably and has moving contact and fixed contact, to be electrically connected with power supply terminal and face terminals or to disconnect; The switch transmission device is bearing in movably in the case and with switching mechanism and is connected, and is used for that moving contact is switched to a part and contacts or switch to fixed contact and a part ofly separate with fixed contact; A pair of bus-bar is electrically connected and mechanical connection with moving contact and fixed contact; Balladeur train supports switching mechanism, switch transmission device and bus-bar movably, comprise wheel and on the lower surface of case before and after move; Beam assembly is removably mounted on the front portion of case; Main shaft, an end are bearing in the balladeur train movably, and the other end is by the beam assembly rotatably support, and a threaded mid portion, thus the actuating force of providing, so that during turning mobile balladeur train; Nut part, the mid portion engagement by screw thread and main shaft also moves forward and backward along the mid portion of main shaft, thereby provides actuating force for balladeur train; And be fixed on device on the balladeur train, be used for the back nut parts.
These purposes of the present invention realize that by the Qianmen is installed the Qianmen has a socket, is used to receive handle on case, thereby mesh with the end of main shaft.
The present invention may be better understood in conjunction with the accompanying drawings, and the present invention is not subjected to the restriction of accompanying drawing, in the accompanying drawing:
Fig. 1 is the end view of existing vacuum circuit breaker constructions;
Fig. 2 is the structure perspective view with vacuum circuit-breaker of traditional mobile device;
Fig. 3 is the decomposition diagram of the main element worm and worm wheel of traditional mobile device;
Fig. 4 A is and the profile that has vacuum circuit-breaker terminal connection status now;
Fig. 4 B is and the profile that has vacuum circuit-breaker terminal separated position now;
Fig. 5 is the structure perspective view that has the circuit breaker of mobile device according to the present invention;
Fig. 6 A is according to circuit breaker mobile device of the present invention and the balladeur train perspective view of mobile status backward;
Fig. 6 B is the perspective view of the state that moves forward according to circuit breaker mobile device of the present invention and balladeur train;
Fig. 7 is the structural plan figure according to balladeur train moving meter of the present invention;
Fig. 8 A is the structure perspective view according to nut part of the present invention;
Fig. 8 B is the structure front view according to nut part of the present invention;
Fig. 9 is the structural plan figure according to nut part of the present invention and carriage member;
Figure 10 is the local horizontal profile according to beam assembly structure of the present invention;
Figure 11 A is the local amplification profile of explanation according to an element operation of the present invention, and described element operation is used to cause or prevents that support strip from moving at length direction;
Figure 11 B is the local amplification view of explanation according to an element operation of the present invention, and described element operation is used to cause or prevents that support strip from moving at length direction;
Figure 12 A shows the state that the bus-bar according to the move operation of the moving element based on mobile device of the present invention and moving element is connected with terminal;
Figure 12 B shows the state that disconnects according to the bus-bar of the move operation of the moving element based on mobile device of the present invention and moving element and terminal;
Figure 13 A shows according to the present invention under the state that nut part and carriage member move to greatest extent backward, the mode of operation figure of nut part when second banking pin contacts with beam assembly and carriage member;
Figure 13 B shows according to the present invention under the state that nut part and carriage member advance to greatest extent, the nut part when first banking pin contacts with the rudder assembly and the mode of operation figure of carriage member;
Figure 14 is according to the present invention, the operating instruction figure under the preceding door closure state of case.
Be explained with reference to the drawings the mobile device of vacuum circuit-breaker of the present invention.
Fig. 5 is the topology view that has the circuit breaker of mobile device according to the present invention.
As shown in the figure, the boxlike distribution board is installed in case 20 back, and mounting terminal frame 1 (terminal installing rack) is with supporting power supply terminal and face terminals.
Under the situation of three-phase alternating current (AC) circuit breaker, the setting of power supply terminal and face terminals and each mutually corresponding based on power supply and load, a terminal frame supports six terminals altogether, each three terminal of upper and lower part.Among Fig. 5, only show the terminal on top.
On the terminal opposite corresponding with each terminal of terminal frame 1 a plurality of bus-bars 16 are installed, these bus-bars 16 are connected or are separated by corresponding terminal.
Under the situation of three-phase AC circuit breaker, be provided with three switching mechanisms 2.Three switching mechanisms 2 and a pair of corresponding mains side and load-side bus-bar 16 electric and mechanical connections.
Here, each switching mechanism 2 has the vacuum circuit-breaker (not shown), and vacuum circuit-breaker has fixed contact and moving contact (not shown).Switch transmission device 3 is connected with the moving contact of switching mechanism 2, and moving contact is moved to and fixed contact position contacting and the position that separates with fixed contact.
Mobile device comprises moving element 5; The balladeur train 100 that is used for bus-bar 16 and 16 ' with terminal is connected or separates with terminal; Carriage driver assembly 200 and beam assembly 300.
Balladeur train 100 be installed in switch transmission device 3 and switching mechanism 2 below, with forward and movably support the switch transmission device 3 and the switching mechanism 2 of moving element 5 on the direction backward.Therefore, balladeur train 100 is connected to the terminal of terminal frame 1 with bus-bar 16 or they and these terminals is separated.
The user hold handle 305 and 305 ', to serve as the basis move to position of supporting and fixed handle with handle and handle is supported and the position that is fixed separates from this with case 20, and beam assembly 300 is moved to the position of being moved.
Among Fig. 5, circle partly shows beam assembly 300 is bearing in a element on the case 20.Explained later circle part.Be provided with in the both sides of case 20 front surfaces on terminal frame 1 opposite a pair of support column 20 ' and 20 ', be used for backbar assembly 300, in support column 20 ' and 20 ' a part form a pair of groove 20a and 20a.
Near door the sidepiece of case 20 form the support column 20 of U type ' and 20 '.In addition, can by crooked certain cylindrical part and with these parts be fixed on form on the part near the case 20 of door support column 20 ' and 20 '.
Each support strip 304a and 304a and U type handle 305 and 305 ' one of them engagement, with U type handle 305 and 305 ' two ends pass support strip 304a and 304a, by caulking or welding or use the meshing part as nut, pin to mesh.
In addition, an end that inserts the support unit 303 in the hexagon hollow core support unit 303 of beam assembly 300 receives core with support unit 303 by the spring that is installed in support unit 303 inside and separates elastic force on the direction.At this moment, use spring, be used to make support strip 304a and 304a to stretch out a definite distance of determining by support unit 303 with enough elastic force.
With reference to Figure 10,11A and 11B illustrate support unit 303.
Therefore, the other end of support strip 304a and 304a stretches out a definite length from the two ends of support unit 303.
In a pair of elongated hole that is formed on horizontal direction on the support unit 303, handle 305 and 305 ' can move in the horizontal direction.
Therefore, when the user advances handle 305 and 305 ' time at the central part of long support unit 303, support strip 304a and 304a overcome the elastic force of spring, its ledge moves for 303 li toward support unit, when the user decontrols handle 305 and 305 ' time, the other end of support strip 304a and 304a is owing to the elastic force of spring stretches out.
The other end of support strip 304a and 304a insert be formed at support column 20 ' and 20 ' on groove 20a and 20a in, make beam assembly 300 be supported post 20 ' and 20 ' supporting.
When support unit 303 is opened with groove 20a and 20a branch, pulling handle 305 and 305 ', the feasible switch transmission device 3 that is bearing on the balladeur train 100, promptly bus-bar 16 separates with terminal.In addition, by advance handle 305 and 305 ', handle 305 and 305 ' can be used for is connected balladeur train 100, the switch transmission device and the bus-bar 16 that are bearing on the balladeur train 100 with terminal.
In addition, handle 305 and 305 ' can be used for balladeur train 100 and case 20 are separated is to keep or to suppress to be bearing in switch transmission device 3 on the balladeur train 100, bus-bar 16 and 16 ' and switching mechanism 2.
By turning handle 213 operation carriage driver assemblies 200, can be with mobile balladeur train 100 on bus-bar 16 and the direction that terminal is connected or on the direction that bus-bar 16 and terminal are separated mutually.
Compare the longer time of method needs that makes bus-bar 16 be connected or separate by handle 213 and carriage driver assembly 200 with terminal with the method for using handle 305 and 305 ' make bus-bar 16 be connected or separate with terminal.But the advantage of a kind of method in back is to use very little power to operate, and the user does not need to enter in the case 20.
With reference to Fig. 6 A and 6B, the state that moves backward on the direction that near the state that advances the terminal and balladeur train 100 separate balladeur train and terminal according to balladeur train 100 illustrates the operation of mobile device of the present invention.
When the rotation owing to main shaft 201 makes balladeur train 100 from support unit 303 farthest the time, moving of carriage driver assembly 200 restriction rudder parts 209, carriage driver assembly 200 comprises that first banking pin 207 and second spring, 208, the second springs 208 are used to prevent any collision between rudder parts 209 and the carriage member 203.
Preferably have rectangular shape with the end of the main shaft 201 of handle 213 engagement and extend by support unit 303.
Has rectangular shape with the inner peripheral end of the handle of above-mentioned end engagement.
The mate of main shaft 201 and handle 213 has angular shape, makes revolving force be applied to effectively on the main shaft 201 by handle 213.
In addition, when the user meshes handle 213 and main shaft 201 and rotating spindle 201, be provided with vibrating part 215, be used for more easily realizing that engagement and between between handle 213 and the main shaft 201 realize stable engagement.Around the mate of main shaft 201, insert in this certain intervals at certain intervals by the end of engagement for vibrating part 215.
The collar portion of vibrating part 215 is by the front surface of screw at support unit 303.
In order to guide main shaft 201 in balladeur train 100, to move forward and backward, nut part 202 is being installed near the recess of the fixing U type carriage member 203 of antetheca 101a by the through hole 101b that is formed on the antetheca 101a.
In order to connect main shaft 201 and rudder parts 209 and to prevent that when main shaft 201 rotates the rudder parts from rotating, main shaft 201 and rudder parts 209 the most handy journal bearings mesh, and this Bearing Installation is in the inboard of rudder parts 209.
According to the length and the horizontal direction position of rudder parts 209, a pair of walking track 212 and 212 ' the be fixed on middle body of balladeur train 100 bottoms.Track 212 and 212 ' on the bottom of the rudder parts 209 that the slide bottom shape that has definite position and determine, with walking track 212 and 212 ' cross section and position corresponding.
That is, form a pair of groove (not shown) in the bottom of rudder parts 209, groove have given shape with corresponding to the track 212 and 212 that stretches out from the bottom of balladeur train 100 according to its rectangular cross section '.The width of each groove and inter-alveolar distance according to track 212 and 212 ' width and the distance between them determine.
The structure of beam assembly 300 shown in Figure 6 and the embodiment of operation and Fig. 5 are similar, and for for simplicity, identical structure and operation are omitted.Below with reference to Figure 10 different structures and operation are described.
The operation of circuit breaker mobile device of the present invention is described with reference to Fig. 6 A and 6B.
A pair of support strip 304a shown in the annulus of Fig. 5 part and 304a be inserted near form the (not shown) support column 20 ' groove 20a in, beam assembly 300 is fixed on the case 20.In this state, the user inserts the engagement end of handle 213 in the vibrating part 215 and is meshed and counter clockwise direction turning handle 213 with the mate of main shaft 201.Main shaft 201 rotates, and nut part 202 advances along the threaded portion of main shaft 201, and nut part 202 is connected with balladeur train 100 by butt joint carriage member 203.Balladeur train 100 advances with the direction of terminal frame 1 by taking turns 102 slide in case 20 bottoms.
At this moment, rudder parts 209 are moved near the carriage member 203 along track 212 and 212 ' advance.
When beam assembly 300 facing surfaces of banking pin 207 contact and rudder parts 209, balladeur train 100 stops to move.The impact that is produced when beam assembly 300 facing surfaces of banking pin 207 contacts and rudder parts 209 is absorbed by spring 208.
So, when balladeur train 100 when terminal frame 1 advances, the moving element 5 that is formed by the switch transmission device 3, switching mechanism 2 and the bus-bar 16 that are installed on the balladeur train 100 moves towards terminal frame 1.As a result, the terminal of bus-bar 16 and terminal frame 1 couples together.
In addition, when in order to keep in repair terminal with bus-bar 16 and to separate with terminal frame 1, under beam assembly 300 was fixed on state on the case 20, the user inserted flange 215 with the mate of handle 213 and is meshed with the mate of main shaft 201.When handle 213 clockwise directions rotated, nut part 202 moved backward along the threaded portion of main shaft 201, and balladeur train 100 moves towards beam assembly 300 backward by the slide of wheel 102.
At this moment, by moving track 212 and 212 backward ', rudder 209 is moved near the wall 101a relative with terminal frame 1.When the support unit 303 of its contact beam assembly 300 relative with balladeur train 100 surperficial, balladeur train 100 stops to move.
The impact that is produced when the support unit 303 of the relative beam assembly 300 of banking pin 207 ' contact and balladeur train 100 surperficial is by spring 208 ' absorption.
So, when balladeur train 100 is mobile backward towards beam assembly 300, the moving element 5 that is formed by the switch transmission device 3, switching mechanism 2 and the bus-bar 16 that are installed on the balladeur train 100 moves backward to beam assembly 300 from terminal frame 1, makes the terminal of bus-bar 16 and terminal frame 1 separate.
The structure of balladeur train moving element of the present invention is described with reference to Fig. 7.
An end of the main shaft 201 relative with beam assembly 300 is rotatably mounted by the bearing 214 that is installed in support unit 303 middle body inside.
Prevent moving of bearing 214 by being arranged on indoor lining 217.
The engagement end of the main shaft 201 that is meshed with handle 213 has the dihedral outer radius and is centered on by flange 215.
The collar portion of flange 215 inserts in the lining 217 by pair of screws 216, thereby is fixed on wherein.
The threaded portion of main shaft 201 is by nut part 202, and the end relative with the engagement end is connected with rudder parts 209.
The end relative with main shaft 201 is rotatably mounted by the bearing that is installed in the rudder parts 209.
Near the wall 101a installation bracket 203 of close balladeur train 100 beam assembly 300, the U type concave bottom of coming engaging bracket 203 in the bottom of balladeur train 100 by screw or certain such meshing part of nut.
By a pair of confinement plate 211 and 211 and a pair of restriction projection 210, mobile be restricted of nut part 202 on the direction that becomes rectangle with forward and backward directions on the main shaft 201, confinement plate 211 and 211 is installed near the length direction external peripheral surface, and restriction projection 210 extends into the inside of the guiding groove 202c of nut part 202 from confinement plate 211 and 211.
In order to limit the rotation of nut part 202, a pair of limit rotation pin 205 and 205 ' the be inserted into inside of guiding groove 202b.
With the limit rotation pin 205 and 205 that inserts guiding groove 202b ' relative end, end pass two sidewalls of carriage member 203, this relative end by a pair of link plate 206 and 206 ' with first and second banking pins 207 and 207 ' be connected.
Second banking pin 207 ' comprise first end and the second end, the sidewall that first end passes carriage member 203 moves backward with restriction balladeur train 100 and extends towards the support unit 303 of beam assembly 300, another sidewall that the second end passes carriage member 203 and link plate 206 ' be connected.
With reference to Fig. 8 A and 8B nut part 202 is described.
Radial center at nut part 202 forms threaded portion 202a, is used for the male thread portion engagement with main shaft 201.
Therefore, because limit rotation pin 205 and 205 ' wall that is positioned at the nut part 202 of deepest part stops, and limited nut part 202 clockwise and anticlockwise rotations.
Fig. 9 is the amplification view of the moving limiting element of the moving limiting element of nut limit rotation element, nut and rudder and balladeur train.The structure of these elements is described in the explanation of Fig. 7, does not repeat them here.
Figure 10 is the local horizontal cross-sectional view according to beam assembly structure of the present invention.Figure 11 A is the local cross-sectional view that amplifies, and is used to illustrate the operation that causes or prevent the element that support strip length direction according to the present invention moves, and Figure 11 B is local amplification view, is used to illustrate cause or prevent the element that support strip length direction of the present invention moves.As shown in the figure, beam assembly 300 comprises the rectangular box type support unit 303 with space 301.A pair of support strip 304a is with two medial surfaces that vertically are installed in bearing support movably of support unit 303.
U type handle 305 and 305 ' two ends be inserted into the support strip 304a that is received in the support unit 303 and 304a part and holded up therein.In addition, the support strip 304a and the 304a part that are received in the support unit 303 can be supported with lining 310a and the 310b that support strip 304a moves by a pair of, are used for when support strip 304a is moved horizontally parallel mobile with support unit 303.
A pair of spring 309 is installed between the end and lining 311 in the support unit 303 that receives each support strip 304a and 304a, each support strip 304a and 304a and handle 305 and 305 ' receive elastic force by spring 309 in the direction of leaving support unit 303 longitudinal center.
The quantity of lining 311 is two, with adjacent and corresponding by the quantity of the spring 309 that inserts the screw in the lining 311 by each support unit 303 with through hole 302.
Therefore, in the present invention, particular element is set, be used for moving or stop support strip 304a and 304a and handle 305 and 305 ', support strip 304a and 304a and handle 305 and 305 ' receive elastic force in the direction of leaving support unit 303 longitudinal center by spring 309.
Said elements comprises a pair of button part 308b that stretches out from support unit 303, stretches out direction and handle 305 identical (left direction among Figure 10); Dish-type retaining device part is connected with each button part 308b is whole, and radius is used to stop to move of support strip 304a and 304a greater than the radius of button part 308b; A pair of spring 307 is used for providing elastic force from the direction that support unit 303 stretches out for stopping element 308a at button part 308; A pair of ring baffle element 306 vertically is installed on the wall in the chamber 301 of support unit 303, is used to prevent that spring 307 and retaining device part 308a from throwing off and support spring 307 and retaining device part 308a; Elongated hole 304c is formed among support strip 304a and the 304a, is used to provide the path, makes button part 308b pass wherein; And shut-down operation wall 304b with given shape, be used for corresponding with retaining device part 308a with certain radius, this certain radius is a bit larger tham the radius of the retaining device 308a on retaining device part 304a of elongated hole 304 longitudinal center places and the 304a, is used for providing when power on being applied to button 308b is stopped the shut-down operation surface of a retaining device part 308a.According to inserting among the elongated hole 20a, determine the installation site of baffle plate 306 and the position of shut-down operation wall 304b with the support strip 304a of backbar assembly 300 in case 20 and the extension elongation of 304a.
The operation of beam assembly 300 is described with reference to Figure 10.
At this moment, the projection of support strip 304a and 304a moves backward in the chamber of support unit 303, and beam assembly 300 separates with case 20.
Illustrate at the element that vertically moves or stop support strip 304a with reference to Figure 11 A and 11B.Shown in Figure 11 B, on each support strip 304a and the 304a support strip 304a and 304a vertically on form elongated hole 304c, be used to allow support strip 304a and 304a to vertically move within the specific limits, at the longitudinal center portion branch of elongated hole 304c the shut-down operation wall 304b of stop component is set, is used to stop to vertically move of support strip 304a.
Shown in Figure 11 A, ring baffle 306 is installed in the inwall of the support unit 303 relative with balladeur train 100 by certain method, and spring 307 and retaining device part 308a are bearing in the baffle plate 306 movably with the specific direction perpendicular to support unit 303 moving directions.Radius stretches out less than the button part of the retaining device part 308a upper surface from retaining device part 308a.
The free end of the button part 308b that is depressed by the user passes the relative wall of door (not shown) with case 20 in support unit 303, stretch out then.
In Figure 11 A, label 304a represents support strip, and 304b represents operate wall, and 304c represents elongated hole.
With reference to Figure 11 A and 11B the operation that vertically moves or stop support strip 304a is described.
Under the state that button part 308b is not pressed, retaining device part 308a moves up with respect to the surperficial 304b of operate wall by the elastic force of the spring 307 shown in Figure 11 A dotted line, thereby stop to move of support strip 304a, the free end of button 308b passes the relative wall of door (not shown) with case 20 in support unit 303, stretch out then.
When the user uses elastic force greater than spring 307 to press the button part 308b, shown in the solid line of Figure 11 A, retaining device part 308a with respect to the surperficial 304b of operate wall without any moving down and move into with hindering baffle plate 306.
At this moment, spring 307 is compressed.Therefore, realize vertically moving of support strip 304a.
With reference to Figure 12 A operation according to device of the present invention is described, according to the present invention, Figure 12 A shows the state that the bus-bar based on the move operation of a moving element of mobile device and a moving element is connected with terminal, according to the present invention, the state that the bus-bar based on the operation of a moving element of mobile device and a moving element that Figure 12 B shows is not connected with terminal.
Shown in Figure 12 A, handle 213 with state that the relative end of door of main shaft 201 is meshed under, when rotating counterclockwise handle 213, balladeur train 100 moves in the direction of terminal frame 1.Therefore, be installed in the circuit breaker 17 of switch transmission device 3 on the balladeur train 100 and switching mechanism 2, switching mechanism 2 and the top bus-bar 16 that is connected with fixed contact with the moving contact of circuit breaker 17 and bottom bus-bar 16 ' all the direction with terminal frame 1 moves.So, when at the to greatest extent mobile balladeur train 100 of the direction of terminal frame 1, top bus-bar 16 and bottom bus-bar 16 ' be connected with face terminals with power supply terminal on being installed in terminal frame 1.
Shown in Figure 12 B, handle 213 with state that the relative end of door of main shaft 201 is meshed under, when clockwise rotating handle 213, balladeur train 100 is that the direction of handle 213 moves with beam assembly.So the circuit breaker 17 that is installed in switch transmission device 3 on the balladeur train 100 and switching mechanism 2, switching mechanism 2 is with the top bus-bar 16 that is connected with fixed contact with the moving contact of circuit breaker 17 and bottom bus-bar 16 ' all the direction with handle 213 moves.
So, when balladeur train 100 is mobile backward to greatest extent with the direction of handle 213, top bus-bar 16 and bottom bus-bar 16 ' the leave power supply terminal and the face terminals that are installed on the terminal frame 1.
When nut part and carriage member move backward to greatest extent and second banking pin 207 ' when contacting with assembly, the operation of nut part and carriage member is described with reference to Figure 13 A, according to the present invention, Figure 13 A shows nut part and the carriage member under the state that nut part and carriage member move to greatest extent backward, when second banking pin contacts with beam assembly, according to the present invention, Figure 13 B shows nut part and the carriage member under the state that nut part and carriage member advance to greatest extent, when first banking pin contacts with the rudder assembly.
At first, when main shaft 201 clockwise directions rotate, nut part 202 moves backward along the threaded portion of main shaft 201, with the carriage member 203 of nut part 202 engagements by a pair of confinement plate 211 and 211 and a pair ofly stretch into the restriction projection the guiding groove 202c of nut part 202 and move backward from confinement plate 211 and 211.
So, be installed in a pair of limit rotation pin 205 and 205 in the carriage member 203 ', a pair of link plate 206 and 206 ' and first and second banking pins 207 and 207 ' move backward with carriage member 203 ones.
When second banking pin 207 ' when contacting with beam assembly 300, above-mentioned move operation backward stops.
At this moment, when the user clockwise rotated handle 213 continuously, nut part 202 was rotated, and limit rotation pin 205 ' collision is positioned at the nut part 202 of guiding groove 202b deepest part continuously, thereby notifies user's balladeur train 100 fully to be moved to the rear portion.
When counter clockwise direction rotating spindle 201, nut part 202 advances along the threaded portion of main shaft 201, with the carriage member 203 of nut part 202 engagement by a pair of confinement plate 211 and 211 and a pair of restriction projection 210 that stretches into the guiding groove 202c of nut part 202 from confinement plate 211 and 211 advance.
So, be installed in a pair of limit rotation pin 205 and 205 in the carriage member 203 ', a pair of link plate 206 and 206 ' and first and second banking pins 207 and 207 ' advance simultaneously.
When first banking pin 207 contacted with rudder parts 209, above-mentioned forward travel stopped.At this moment, when the continuous turning handle 213 of user, nut part 202 is rotated, and limit rotation pin 205 collision continuously is positioned at the nut part of guiding groove 202b deepest part, thereby it is fully mobile to notify user's balladeur train 100 to obtain on direction of advance.
The operation of device when the Qianmen that Figure 14 shows case 20 is closed.With reference to Figure 14 this operation is described.
In the present invention, operating personnel do not need to move with moving element 5.So, as shown in figure 14, on door 601, form through hole 601a.
Moving element 5 separately and engagement operations all be under door 601 closing state of case 20, to finish by an end of handle 213 insertion through hole 601a and main shaft 201 is meshed.
As mentioned above, in moving element mobile device, under beam assembly is fixed on state on the case,, can realize safe and reliable operation by the balladeur train of moving element is installed above moving forward and backward according to circuit breaker of the present invention.In this case, the user need not to enter in the case.In addition, under the state of not opening at the Qianmen of case, finish aforesaid operations, thereby realize the maintenance of circuit breaker simply and effectively.
Because the present invention can embodied under the situation of its spirit or essential feature in a variety of forms, so be to be understood that, the foregoing description is not subjected to the above restriction of any details, unless special provision, theme of the present invention and scope are defined by the claims, and all modifications and distortion all drop within the scope of claim or be equal to the scope that claim is summarized.
Claims (14)
1. circuit breaker comprises:
Case has face terminals and power supply terminal on its rear wall;
Switching mechanism is bearing in the case movably and has moving contact and fixed contact, to be electrically connected with power supply terminal and face terminals or to disconnect;
The switch transmission device is bearing in movably in the case and with switching mechanism and is connected, and is used for that moving contact is switched to a part and contacts or switch to fixed contact and a part ofly separate with fixed contact;
A pair of bus-bar is electrically connected and mechanical connection with moving contact and fixed contact;
Balladeur train supports switching mechanism, switch transmission device and bus-bar movably, and comprises wheel, and moves before and after on the lower surface of case;
Beam assembly is removably mounted on the front portion of case;
Main shaft, an end are bearing in the balladeur train movably, and the other end is by the beam assembly rotatably support, and a threaded mid portion, thus the actuating force of providing, so that during turning mobile balladeur train;
Nut part, the mid portion engagement by screw thread and main shaft also moves forward and backward along the mid portion of main shaft, thereby provides actuating force for balladeur train; And
Be fixed on the device on the balladeur train, be used for the back nut parts.
2. circuit breaker according to claim 1 also comprises a handle, is used for artificial rotating spindle.
3. circuit breaker according to claim 1, wherein, described beam assembly comprises:
The a pair of support strip that vertically moves is inserted in the support slot on the supporting arrangement that is formed on case or the disengaging support slot;
Support unit with inner room is used for receiving the support strip that can move forward and backward within it within it;
A pair of spring, being used to provide can be with the elastic force of support strip to the propelling of support strip direction;
A pair of handle is used to vertically move support strip; And
By the bearing of support unit rotatably support, be used for an end of rotatably mounted main shaft.
4. circuit breaker according to claim 3, wherein, described beam assembly is a device that vertically moves or stop support strip.
5. circuit breaker according to claim 3, wherein, described beam assembly comprises:
The pair of buttons part, its setting is corresponding with a pair of support strip, and the user can optionally press the button to move or to stop support strip;
A pair of retaining device part is connected with button part, and the radius of each retaining device part is greater than the radius of button part, so that stop to move of support strip;
A pair of spring is used for partly providing elastic force to retaining device on the direction that button part stretches out from support unit;
A pair of baffle plate is used for support spring and retaining device part, partly breaks away to prevent spring and retaining device;
The path that provides button part to pass is provided elongated hole; And
Support strip, in longitudinal center's part of elongated hole, the radius of support strip is corresponding with the shape of retaining device part greater than the radius and the shape of the part of the retaining device on the support strip, when not having the power pressing button, for retaining device partly provides the shut-down operation surface.
6. circuit breaker according to claim 1 also comprises carriage member, is used for the back nut parts and the actuating force of nut part is sent to balladeur train.
7. circuit breaker according to claim 1 also comprises the rudder parts, and the rudder parts are connected with a end of main shaft in inserting balladeur train, move forward and backward smoothly with guide carriage.
8. circuit breaker according to claim 1 also comprises pair of tracks, is used for moving forward and backward at balladeur train guiding rudder parts.
9. circuit breaker according to claim 1 also comprises:
First banking pin, the distance that is used for making balladeur train and support unit the moving of restriction rudder parts farthest the time when rotation by main shaft;
First spring is used to prevent the collision between rudder parts and the carriage member;
Second banking pin is used for making moving of mobile time restriction balladeur train on the direction of balladeur train at support unit when the rotation by main shaft; And
Second spring is used to prevent the collision between balladeur train and the support unit.
10. circuit breaker according to claim 1, wherein, described rudder parts comprise bearing, are used for the end that rotatably support is inserted into the main shaft of balladeur train.
11. circuit breaker according to claim 1, wherein, described nut part comprises the central groove that is formed on vertical central outer surface, and is formed on two longitudinal end outer surfaces and has a pair of groove of variable depth.
12. circuit breaker according to claim 11 also comprises a pair of limit rotation pin, each limit rotation pin has a part that is inserted in the groove with variable depth, with the rotation of restriction nut part.
13. circuit breaker according to claim 11 also comprises:
With a pair of confinement plate that the nut part outer surface separates, be used to prevent that nut part from moving on perpendicular to the direction of fore-and-aft direction; And
A pair of banking pin, each banking pin have one and are inserted into part in the nut part central groove from confinement plate, are used to prevent that nut part from moving on perpendicular to the direction of fore-and-aft direction.
14. circuit breaker according to claim 1 also comprises having the Qianmen of inserting mouth, inserts mouth and is used to receive the handle that meshes with spindle nose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001045172A CN1189986C (en) | 2000-02-14 | 2000-02-14 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001045172A CN1189986C (en) | 2000-02-14 | 2000-02-14 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1309447A true CN1309447A (en) | 2001-08-22 |
| CN1189986C CN1189986C (en) | 2005-02-16 |
Family
ID=4577372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001045172A Expired - Lifetime CN1189986C (en) | 2000-02-14 | 2000-02-14 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1189986C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894705A (en) * | 2009-05-21 | 2010-11-24 | Ls产电株式会社 | The Withdrawable device of vacuum circuit-breaker |
| CN102184804A (en) * | 2011-01-07 | 2011-09-14 | 无锡市锡山湖光电器有限公司 | Manual closing energy-storing resetting device of vacuum circuit breaker |
| CN101834085B (en) * | 2009-03-11 | 2013-02-20 | Ls产电株式会社 | Withdrawable device of main circuit for vacuum circuit breaker |
| CN101809835B (en) * | 2007-09-27 | 2015-07-15 | 伊顿公司 | Draw-out switchgear comprising a free-wheeling clutch |
-
2000
- 2000-02-14 CN CNB001045172A patent/CN1189986C/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101809835B (en) * | 2007-09-27 | 2015-07-15 | 伊顿公司 | Draw-out switchgear comprising a free-wheeling clutch |
| CN101834085B (en) * | 2009-03-11 | 2013-02-20 | Ls产电株式会社 | Withdrawable device of main circuit for vacuum circuit breaker |
| CN101894705A (en) * | 2009-05-21 | 2010-11-24 | Ls产电株式会社 | The Withdrawable device of vacuum circuit-breaker |
| CN101894705B (en) * | 2009-05-21 | 2013-06-05 | Ls产电株式会社 | Withdrawable device of vacuum circuit breaker |
| CN102184804A (en) * | 2011-01-07 | 2011-09-14 | 无锡市锡山湖光电器有限公司 | Manual closing energy-storing resetting device of vacuum circuit breaker |
| CN102184804B (en) * | 2011-01-07 | 2013-08-14 | 无锡市锡山湖光电器有限公司 | Manual closing energy-storing resetting device of vacuum circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1189986C (en) | 2005-02-16 |
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Granted publication date: 20050216 |