CN103177902B - For the interlock lock mechanism of vacuum circuit-breaker - Google Patents
For the interlock lock mechanism of vacuum circuit-breaker Download PDFInfo
- Publication number
- CN103177902B CN103177902B CN201210555568.0A CN201210555568A CN103177902B CN 103177902 B CN103177902 B CN 103177902B CN 201210555568 A CN201210555568 A CN 201210555568A CN 103177902 B CN103177902 B CN 103177902B
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- China
- Prior art keywords
- breaker
- location
- breaker body
- release lever
- lever
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Trip Switchboards (AREA)
Abstract
A kind of interlocking lockable mechanism for vacuum circuit-breaker, comprise: location release lever, it is connected to blocking lever to discharge breaker body by promoting blocking lever and allowing blocking lever to leave location hole, and described location release lever be arranged on breaker body below thus can be rotated to corresponding to the lock position of blocking lever primary importance or correspond to the second place of off-position of blocking lever, in first position location, release lever declines, and in second position location, release lever rises; With locking magnetic texure, it has lock pin, and this lock pin is movable linearly to lock position and off-position, and in location, lock position place, release lever is locked in primary importance, and in location, off-position place, release lever is released thus can moves to the second place.
Description
Technical field
The disclosure relates to a kind of vacuum circuit-breaker, particularly relates to a kind of interlocking lockable mechanism for vacuum circuit-breaker.
Background technology
As a rule; vacuum circuit-breaker is so a kind of power equipment: it is connected to the distribution wire with several kilovolts of high pressure or several ten thousand volt superhigh pressure; automatically to cut off corresponding power distribution circuit during by the fault current that such as overcurrent, short circuit current or earth fault occur being detected, thus the equipment of protection electric loading side and circuit.
Vacuum circuit-breaker normally uses like this: it is contained in distribution panelboard to control the operation of motor etc. together with the various power equipments comprising monitoring relay, breaker of plastic casing etc.
Hereinafter, the example of vacuum circuit-breaker is described with reference to Fig. 1 to Fig. 5.
Vacuum circuit-breaker 100 comprises bracket 20 and breaker body 10.
As shown in Figure 4, breaker body 10 comprises wheel 11, actuator lever 12, front guidance panel 13, main circuit unit 14 for each electrode, body terminal 15, location release lever 16 and handle 17.
Breaker body 10 is movable to link position and test position.Here, link position is the position that body terminal 15 was electrically connected and was mechanically connected to the inside splicing ear 23a of bracket 20, and it will be described later.
Test position is body terminal 15 position (it will be described later) that with machinery is separated electrically separated with the inside splicing ear 23a of bracket 20, thus make vacuum circuit-breaker 100 and mains side power circuit and electric loading side power circuit electrically separated, but controlling power supply (not shown) is connected to breaker body 10 so that whether perform about breaker body 10 is the test of normal running.
Wheel 11 is configured to two pairs of such wheels: its bottom being rotatably installed in the both sides of breaker body 10 is respectively sentenced and just made breaker body 10 to move forward or backward.
Actuator lever 12 be configured with rotatably be arranged on breaker body 10 in parallel with each other center bottom on a pair bar.This is interconnected by connecting pin bar.Actuator lever 12 has the line part that extends in parallel with the bottom of breaker body 10 and is bent upwards the curved extension then extended from this line part.
Actuator lever 12 is so a kind of parts: it is applied to the pressure of breaker body 10 via actuation handle 26 by providing and allows breaker body 10 to be positioned at link position.
Front guidance panel 13 can comprise front panel, overcurrent relay (not shown), trip actuator (not shown), switching mechanism (not shown) and linkage (not shown).
Front panel is provided with action button, position instruction unit etc. to provide interface element between user and vacuum circuit-breaker 100.
Overcurrent relay can be set to so a kind of control unit: the instruction of its operation control and executing location instruction unit that perform vacuum circuit-breaker 100 controls, and is arranged at front panel in the rear positions place position instruction unit of front panel.In operation controls, the generation of fault current in overcurrent relay supervisory circuit, and when producing fault current, control vacuum circuit-breaker 100 makes it perform the trip operation of automatic shutdown circuit.
Trip actuator can be operated to trigger switching mechanism performing trip operation under the control of overcurrent relay.
Switching mechanism carries out to make it parts switched for the actuating force of the main circuit unit 14 of each electrode for providing to drive.Switching mechanism can be constructed to the switching mechanism of the elasticity energy using spring to store up or use the switching mechanism of electromagnetic energy, such as permanent magnetic actuator.
Linkage can be set to so a kind of parts: the direction of the actuating force of switching mechanism is converted to the direction of the switching of the main circuit unit 14 for each electrode by it, then provides the actuating force of switching mechanism.
Main circuit unit 14 for each electrode is provided with three main circuit unit corresponding with three-phase circuit.Each main circuit unit is constructed to a kind of so known vacuum interrupter: it has armature contact and fixed contact so that extinguish the electric arc of the generation when high-tension circuit switches in vacuum tank.Be configured for armature contact and the fixed contact electrical connection of the vacuum interrupter of the main circuit unit 14 of each electrode and be mechanically connected to respective body terminal 15.
Body terminal 15 is electrically connected and is mechanically connected to the armature contact and fixed contact that are formed for the vacuum interrupter of the main circuit unit 14 of each electrode respectively.Body terminal 15 is configured to the terminal for three electrodes respectively relative to mains side power circuit and electric loading side power circuit, is therefore provided with total 6 terminals, three terminals namely at top place and three terminals at bottom place.Body terminal 15 is set to so a kind of parts: the main circuit unit 14 being used for each electrode is electrically connected to mains side power circuit and electric loading side power circuit by the inside splicing ear 23a of bracket 20 by it.
As shown in Fig. 6 to Figure 10, location release lever 16 is can promote blocking lever 31 to make it from the parts of lock position release.Here, carry out locking blocking lever 31 by being inserted into by blocking lever 31 as the link position hole 30a of the location hole of location-plate 30 or test position hole 30b, location-plate 30 will be described after a while.In the diagram, the leading section of location release lever 16 is only had to expose by projecting to the outside of the front panel of breaker body 10.
Location release lever 16 comprises the first bar portion 16b, the second bar portion 16a, rotating shaft 16d, rotating shaft supporting bracket 16c and blocking lever connecting pin 16e.
First bar portion 16b is configured with the outside of the front panel by projecting to breaker body 10 and the leading section exposed and the plate portion extended back from corresponding leading section.As shown in Figure 10, rotating shaft 16d the axis hole 16b1 passed wherein be arranged on the rearward end of the first bar portion 16b.
Second bar portion 16a is configured with and is formed as extending with right angle (namely 90 degree bend) the plate portion then extended in parallel with the first bar portion 16b from the first bar portion 16b.Second bar portion 16a is provided with through hole 16a1 and axis hole 16a2, the middle body that through hole 16a1 is formed in the second bar portion 16a extended in parallel with the first bar portion 16b is sentenced and blocking lever connecting pin 16e is inserted in through hole 16a1, and axis hole 16a2 is formed in the end of the second bar portion 16a extended in parallel with the first bar portion 16b to make rotating shaft 16d through axis hole 16a2.
Rotating shaft 16d provides rotating shaft to locate release lever 16 and can rotate around rotating shaft.Rotating shaft 16d is arranged through the axis hole 16b1 of the first bar portion 16b and the axis hole 16a2 of the second bar portion 16a.
Rotating shaft supporting bracket 16c is set to rotating shaft 16d is positioned at pre-position and the parts of supporting rotating shaft 16d.Rotating shaft supporting bracket 16c comprises: horizontal plate part, and it is fixed to the base plate 33 described after a while by the secure component of such as bolt; And vertical plate part, it is formed as upwards extending from two ends of horizontal plate part respectively.Here, each vertical plate part is provided with rotating shaft 16d through through hole (not shown) wherein.Rotating shaft supporting bracket 16c is configured with the tabular component with approximate " U " shape.
Blocking lever connecting pin 16e is installed as from the second bar portion 16a through blocking lever 31.Location release lever 16 is connected so that the parts of movement together with blocking lever 31 by blocking lever connecting pin 16e.
Blocking lever 31 is configured with so a kind of rod component: it is connected to location release lever 16 by blocking lever connecting pin 16e, thus rises in vertical direction with the rotation interlocking ground of location release lever 16 or decline.When user hold the location leading section of release lever 16 and running fix release lever 16 to rise time, blocking lever 31 is risen by corresponding manual force.When the leading section of user operation location release lever 16 is to decline, blocking lever 31 can be declined by corresponding manual force.Alternately, when user discharges the leading section of location release lever 16, blocking lever 31 can be declined by the weight of himself.
For the installation that will be described later and the location-plate 30 of base plate being fixed to bracket 20, in the link position hole 30a that blocking lever 31 can be inserted into location-plate 30 with the link position of breaker body 10 or test position mobile with interlocking or test position hole 30b, vertically to move to lock position (down position) and off-position (lifting position), in the movement of lock position place breaker body 10 by locking, discharge by leaving link position hole 30a or test position hole 30b at off-position place breaker body 10 by the movement of locking.
Connecting pin guiding tube 32 is so a kind of parts: it guides the vertical movement of blocking lever 31 and determines the restriction for the vertical movement of blocking lever 31 and the rotation for location release lever 16.
Connecting pin guiding tube 32 is configured with vertical column members, and this component has empty inside and makes the blocking lever 31 vertically mobile inside by this component.Connecting pin guiding tube 32 is provided with vertical long holes 32a to determine the restriction of the vertical movement for blocking lever connecting pin 16e.Connecting pin guiding tube 32 is installed by welding etc. and is fixed to base plate 33.
Base plate 33 is arranged on the bottom of breaker body 10, and by rotating shaft supporting bracket 16c is fixed to supporting rotating shaft supporting bracket 16c on base plate 33.Base plate 33 is provided with the through hole (not shown) be immediately positioned at below blocking lever 31.Here, through hole allows blocking lever 31 to pass through through wherein and vertically moving.
As shown in Figure 4, handle 17 is formed as annular respectively so that user can hold handle 17 at two sidepiece places of breaker body 10.Thus, user can when holding handle 17 with the hand of corresponding user by promoting or pulling breaker body to make breaker body 10 move to link position or test position.
Meanwhile, bracket 20 is fixedly placed in distribution panelboard.As shown in Figure 3, bracket 20 is configured with so a kind of shell: it has the external connection terminals 23b for being electrically connected with mains side power circuit and electric loading side power circuit and the inside splicing ear 23a for being electrically connected between bracket 20 and breaker body 10.
As shown in Figure 3, bracket 20 comprises two side plate 22b, rear plate 22a and base plate 24.
Two angles place is installed and be fixed on to pair of guide rails 25 respectively along the length direction of base plate 24.Here, this guides the wheel (Reference numeral 11 with reference to figure 2) be attached in breaker body 11 make it install and move to guide rail 25.
The front surface of plate 22a after the inside splicing ear 23a of electrical connection between bracket 20 and breaker body 10 is arranged on.Here, for mains side three-phase line three inner splicing ears and be separately positioned on the upper and lower of the front surface of rear plate 22a for three inner splicing ears of electric loading side three-phase line.External connection terminals 23b for being electrically connected with mains side power circuit and electric loading side power circuit is arranged on the rear surface place of rear plate 22a.Here, for mains side three-phase line three external connection terminals and be separately positioned on the upper and lower of the rear surface of rear plate 22a for three external connection terminals of electric loading side three-phase line.
Location-plate 30 is fixedly mounted in the side place of base plate 24.Here, be horizontally formed in location-plate 30 as the link position hole 30a of location hole corresponding with link position and test position respectively and test position hole 30b.
Simultaneously, in the vacuum circuit-breaker 100 of described above structure, with reference to Fig. 4 to Fig. 9 to running circuit breaker main body 10 to the operation of test position and link position and be described according to the location release lever 16 of the move operation of breaker body 10 and the operation of location-plate 30.
First, a kind of like this operation will be described: wherein breaker body 10 is extracted out to move to test position as shown in Figure 6 and Figure 7 from the position that the body terminal 15 of breaker body 10 as shown in Figure 2 and the inside splicing ear 23a of bracket 20 are separated with the control power terminal (not shown) for testing from bracket 20 completely.
If user with corresponding user hold handle time promote breaker body 10, so when lower wheels 11 is rolled along the guide rail 25 of bracket 20, breaker body 10 moves backward.
Correspondingly, the control power terminal (not shown) of breaker body 10 is connected to the control power terminal (not shown) of bracket 20.Simultaneously, as shown in Figure 6 and Figure 7, when the blocking lever 31 be arranged on below breaker body 10 moves backward along the location-plate 30 on the base plate 24 being arranged on bracket 20, blocking lever 31 is inserted in the 30b of test position hole, and correspondingly, the mobile of breaker body 10 stops.
Test position is so a kind of position: in this position, and the body terminal 15 of breaker body 10 is separated with the inside splicing ear 23a of bracket 20, but only has the control power terminal for testing to be connected.Whether normally user may operate in on/off (on/off) button that the front panel of breaker body 10 is arranged, confirm breaker body 10 executive circuit handover operation such as to be moved by the diverse location of bar linkage structure when breaker body 10 switches.
Next, to describe so a kind of operation: wherein breaker body 10 moves to link position, link position is that the body terminal 15 of breaker body 10 is as shown in Figure 4 connected to the inside splicing ear 23a of bracket 20 and the position that is also connected of the control power terminal for testing.
First, user hold location release lever 16 anterior time mention location release lever 16.
Then, as shown in FIG. 8 and 9, the test position hole 30b of the location-plate 30 of blocking lever 31 from the base plate 24 being arranged on bracket 20 promotes to be in the state that blocking lever 31 leaves test position hole 30b.
In this state, if user with corresponding user hold the handle 17 of breaker body 10 time promote breaker body 10 further, so when lower wheels 11 is rolled along the guide rail 25 of bracket 20, breaker body 10 moves further backward.
Finally, user with corresponding user hold handle 17 time do not promote breaker body 10 but manually operate actuation handle 26, make the pressure produced by actuation handle 26 be supplied to breaker body 10 by actuator lever 12.Thus, breaker body 10 moves to last link position, and at link position place, the body terminal 15 of breaker body 10 is connected to the inside splicing ear 23a of bracket 20.
Therefore, as shown in Figure 4, the body terminal 15 of breaker body 10 is connected to the inside splicing ear 23a of bracket 20, and electric current can be flowed in the main circuit between mains side power circuit and electric loading side power circuit.Breaker body 10 is connected to the control power terminal (not shown) of bracket 20, and simultaneously, as shown in Figure 6 and Figure 7, when the blocking lever 31 be installed on below breaker body 10 moves backward along the location-plate 30 on the base plate 24 being installed on bracket 20, blocking lever 31 is inserted in the 30b of test position hole.Thus, the movement of breaker body 10 is stopped.
Link position is such position: in this position, the body terminal 15 of breaker body 10 is connected to the inside splicing ear 23a of bracket 20 and the control power terminal for testing, and electric current can be flowed in the main circuit between mains side power circuit and electric loading side power circuit.
Except being except the direction executable operations contrary with aforesaid operations, be envisioned that the operation from link position to test position or the movement from test position to pull-out location, therefore, by its detailed description of omission.
Simultaneously, in the conventional vacuum circuit breaker of structure and operation as mentioned above, its principle is, breaker body is moved to test position to perform test from pull-out location by user, then breaker body is moved to link position so that mains side power circuit and electric loading side power circuit are connected to each other from test position, thus vacuum circuit-breaker is operated.But, when needed, user can make breaker body move to link position from pull-out location and not check that breaker body is in test position whether normal running, makes mains side power circuit and electric loading side power circuit be interconnected, thus operates vacuum circuit-breaker.
At specified control electric power (such as, the AC voltage of the DC voltage of tens volts to 220 volts or tens volts to 250 volts) when not normally being supplied to breaker body, to may can not perform the detection of the fault current to the such as overcurrent or short circuit current produced in vacuum circuit-breaker, and cutting off (tripping operation) operation according to the automatic circuit of the breaker body of the detection of fault current, this can cause serious electric power accident.
Summary of the invention
Therefore, a scheme of detail specifications provides a kind of interlocking lockable mechanism for vacuum circuit-breaker, it only allows the regular supply of the control electric power of breaker body and existence to move to link position with interlocking when specified control electric power is applied to vacuum circuit-breaker, make breaker body can move to link position from test position.
In order to obtain these and other advantage and according to the object of this specification, as here specialize and popularity describe, a kind of interlocking lockable mechanism for vacuum circuit-breaker, described vacuum circuit-breaker comprises: bracket, it provides the shell of described vacuum circuit-breaker, and described shell has power supply side terminal for each electrode and electric loading side terminal; Breaker body, it can move to link position and test position, and described in link position place, breaker body is connected to the terminal of bracket, controls electric power be supplied to breaker body at test position place; Location-plate, it is fixed to the bottom surface of bracket and has location hole corresponding with link position and test position respectively; And blocking lever, it is mounted to outstanding in the below of breaker body downwards and can vertically moves to lock position and off-position, at lock position place, blocking lever is inserted in the location hole of location-plate, with the movement of arriving the mobile ground locking breaker body of interlocking of link position or test position of breaker body, and to discharge the locking of the movement of breaker body by leaving location hole at off-position place.Described interlocking lockable mechanism comprises: location release lever, it is connected to blocking lever and makes to discharge breaker body by promoting blocking lever and allowing blocking lever to leave institute's station holes, and described location release lever be arranged on breaker body below thus can rotate to corresponding to the lock position of blocking lever primary importance or correspond to the second place of off-position of blocking lever, described in first position, locate release lever pass through the described primary importance of arrival that declines, and described in second position, locate release lever by rising the described second place of arrival; With locking magnetic texure, it has lock pin, described lock pin can move to lock position and off-position point-blank, locates release lever and be locked in described first position described in the place of lock position, and described in the place of off-position, locates release lever be released thus can move to the described second place.
By the detailed description hereafter provided, the further range of application of the application will become more obvious.But, should be understood that, due to those skilled in the art, by detailed description, various changes and modifications in the spirit and scope of the present invention will become apparent, although therefore show the preferred embodiments of the present invention, just give detailed description and specific example by the mode of illustrative.
Accompanying drawing explanation
Accompanying drawing is included to provide a further understanding of the present invention and is merged in and forms the part of this specification, and accompanying drawing shows exemplary embodiment and is used from specification one explains principle of the present invention.
In the drawings:
Fig. 1 is the front view of the front portion that conventional vacuum circuit-breaker is shown;
Fig. 2 illustrates that the vacuum circuit-breaker of Fig. 1 is positioned at the stereogram of the state of test position or pull-out location;
Fig. 3 is the stereogram of the structure of the bracket illustrated in the vacuum circuit-breaker of Fig. 1;
Fig. 4 is the state diagram that in the vacuum circuit-breaker that Fig. 1 is shown, breaker body finally moves to the state of link position;
Fig. 5 is the end view of Fig. 4;
Fig. 6 is the partial perspective view of the structure of location release lever, blocking lever and the location-plate illustrated in the vacuum circuit-breaker of Fig. 1;
Fig. 7 illustrates that blocking lever is inserted into the surface stereogram of the state in the test position hole of the location-plate in Fig. 6;
Fig. 8 is the partial perspective view that the state risen in the test position hole that blocking lever passes through to leave location-plate is shown;
Fig. 9 is the side sectional view of Fig. 8;
Figure 10 is the stereogram of the structure of the location release lever illustrated in the vacuum circuit-breaker of Fig. 1;
Figure 11 is the partial perspective view of the structure of the location-plate illustrated in the vacuum circuit-breaker of Fig. 1;
Figure 12 is the stereogram of the external structure for the locking magnetic mechanism in the interlocking lockable mechanism of vacuum circuit-breaker illustrated according to exemplary embodiment of the present invention, it illustrates lock pin and moves forward thus outstanding state;
Figure 13 is the stereogram of the external structure for the locking magnetic mechanism in the interlocking lockable mechanism of vacuum circuit-breaker illustrated according to exemplary embodiment of the present invention, it illustrates the state of lock pin movement backward;
Figure 14 illustrates the in-built cutaway view for the locking magnetic mechanism in the interlocking lockable mechanism of vacuum circuit-breaker according to exemplary embodiment of the present invention;
Figure 15 illustrates according to the interlocking lockable mechanism for vacuum circuit-breaker of exemplary embodiment of the present invention at the stereogram of state of test position locking location release lever;
Figure 16 is the side sectional view of Figure 15;
Figure 17 illustrates the stereogram of exemplary embodiment according to the present invention at the whole external status of the breaker body of the interlocking lockable mechanism for vacuum circuit-breaker under the state of test position locking location release lever;
Figure 18 illustrates exemplary embodiment according to the present invention at the interlocking lockable mechanism release location release lever for vacuum circuit-breaker with the stereogram of the interlocking lockable mechanism under the state making it increase, location release lever and base plate;
Figure 19 illustrates exemplary embodiment according to the present invention at the interlocking lockable mechanism release location release lever for vacuum circuit-breaker with the side sectional view of the interlocking lockable mechanism under the state making it increase, location release lever, blocking lever and location-plate;
Figure 20 is the side sectional view that the interlocking lockable mechanism of exemplary embodiment according to the present invention under blocking lever declines and is inserted into the state in the link position hole of location-plate, location release lever, blocking lever and location-plate are shown;
Figure 21 illustrates that location release lever discharges with the stereogram of the whole external status of the breaker body under the state making it increase at the interlocking lockable mechanism for vacuum circuit-breaker by exemplary embodiment according to the present invention;
Figure 22 is the stereogram of the structure of the bracket in the vacuum circuit-breaker with interlocking lockable mechanism illustrated according to exemplary embodiment of the present invention; And
Figure 23 illustrates separately the stereogram at the structure for the location release lever in the interlocking lockable mechanism of vacuum circuit-breaker according to exemplary embodiment of the present invention.
Embodiment
The detailed description of exemplary embodiment is provided now with reference to accompanying drawing.Accompanying drawing is briefly described in order to reference, and identical or equivalent assembly will be provided with identical Reference numeral, and can not repeat its description.
The vacuum circuit-breaker with interlocking lockable mechanism according to the present invention comprises the bracket 20 shown in the breaker body 10 shown in Figure 17 or Figure 21 and Figure 22.
Bracket 20 has the external connection terminals 23b as the power supply side terminal for three electrodes and the electric loading side terminal for three electrodes, and is to provide the parts of the shell of vacuum circuit-breaker.The detailed configuration of bracket 20 and operation are identical with the conventional vacuum circuit breaker described in the background section, therefore in order to avoid loaded down with trivial details, will omit its detailed description.
Breaker body 10 is for being movable to the core component of link position or test position, at link position place, the body terminal 15 of breaker body 10 is connected to the inside splicing ear 23a of bracket 20, and at test position place, the body terminal 15 of breaker body 10 is separated with the inside splicing ear 23a of bracket 20, and only supply controls electric power.The detailed configuration of breaker body 10 and operation are identical with the conventional vacuum circuit breaker described in background technology part, therefore in order to avoid loaded down with trivial details, will omit its detailed description.
The vacuum circuit-breaker with interlocking lockable mechanism according to the present invention comprises location-plate 30 as above and blocking lever 31 further.
Location-plate 30 is such plate: wherein link position hole 30a is formed as location hole corresponding with link position and test position respectively with test position hole 30b.As shown in figure 22, the bottom surface of bracket is installed and be fixed to location-plate 30.
Blocking lever 31 is so a kind of parts: it is installed to be gives prominence to downwards in the below of breaker body 10, and with being inserted into interlocking in the link position hole 30a of location-plate 30 or test position hole 30b to move vertically to lock position or off-position to link position or test position mobile of breaker body 10, in the movement of lock position place breaker body 10 by locking, and at off-position place, discharged the locking of the movement of breaker body 10 by the link position hole 30a or test position hole 30b leaving location-plate 30.
Location-plate 30 and blocking lever 31 with describe in the background section identical, therefore in order to avoid loaded down with trivial details, detailed description of its structure and operation will be omitted.
Except interlocking lockable mechanism, according to the structure of the structure of vacuum circuit-breaker of the present invention and operation and the vacuum circuit-breaker described in background technology part with operate identical, therefore in order to avoid loaded down with trivial details, structure and the operation of lockable mechanism of interlocking mainly will be described.In addition, structure and the operation of the vacuum circuit-breaker except interlocking lockable mechanism can referring to figs. 1 to the structure described in Figure 11 and operations.
Structure and the operation of the interlocking lockable mechanism according to exemplary embodiment of the present invention used in above-mentioned vacuum circuit-breaker are described with reference to Figure 12 to Figure 23.
Be constructed to comprise location release lever 16 and locking magnetic mechanism 40 according to the interlocking lockable mechanism of exemplary embodiment of the present invention.
As shown in figure 19, location release lever 16 is connected to blocking lever 31 by blocking lever connecting pin 16e, makes breaker body 10 can leave location hole (i.e. link position hole 30a or test position hole 30b) with permission blocking lever 31 and be released by promoting blocking lever 31.Location release lever 16 can be rotated to the primary importance of the lock position corresponding to blocking lever 31 (in this position, location release lever 16 declines) or correspond to the second place (in this position, location release lever 16 rise) of off-position of blocking lever 31.Location release lever 16 is arranged on the below of breaker body 10.More specifically, location release lever 16 is arranged on base plate 33, and base plate 33 is fixed to the bottom of breaker body 10.
Location release lever 16 comprises the first bar portion 16b, the second bar portion 16a, rotating shaft 16d, rotating shaft supporting bracket (but not shown can the 16c of reference diagram 6), blocking lever connecting pin 16e.In Figure 19, eliminate the diagram of rotating shaft supporting bracket (but not shown can with reference to the 16c of figure 6).
First bar portion 16b is configured with the outside of the front panel by projecting to breaker body 10 and the leading section exposed and the plate portion extended back from corresponding leading section.As shown in figure 23, rotating shaft 16d the axis hole 16b1 passed wherein be arranged on the rearward end of the first bar portion 16b.
Second bar portion 16a is configured with and is formed as extending from the first bar portion 16b the plate portion then extended in parallel with the first bar portion 16b with right angle.Second bar portion 16a is provided with through hole 16a1 and axis hole 16a2, the middle body that through hole 16a1 is formed in the second bar portion 16a extended in parallel with the first bar portion 16b is sentenced and blocking lever connecting pin 16e is inserted in through hole 16a1, and axis hole 16a2 is formed in the end of the second bar portion 16a extended in parallel with the first bar portion 16b to make rotating shaft 16d through axis hole 16a2.Second bar portion 16a comprises lock pin holding tank portion 16a3, and it allows lock pin 41 on the top of the second bar portion 16a extended in parallel with the first bar portion 16b through wherein.
Rotating shaft 16d provides rotating shaft to locate release lever 16 and can rotate around rotating shaft.Rotating shaft 16d is arranged through the axis hole 16b1 of the first bar portion 16b and the axis hole 16a2 of the second bar portion 16a.
As described in the background art, rotating shaft supporting bracket (but not shown can with reference to the 16c of figure 6) is set to rotating shaft 16d is placed in pre-position and the parts of supporting rotating shaft 16d.Rotating shaft supporting bracket 16c in Fig. 6 comprises: horizontal plate part, and it is fixed to the base plate 33 described after a while by the secure component of such as bolt; And vertical plate part, it is formed as upwards extending from two ends of horizontal plate part respectively.Here, each vertical plate part is provided with rotating shaft 16d through through hole (not shown) wherein.Rotating shaft supporting bracket 16c is in figure 6 configured with the tabular component with approximate " U " shape.
Blocking lever connecting pin 16e is installed as from the second bar portion 16a through blocking lever 31.Location release lever 16 is connected so that the parts of movement together with blocking lever 31 by blocking lever connecting pin 16e.
Blocking lever 31 is configured with so a kind of rod component: it is connected to location release lever 16 by latch lever connecting pin 16e, thus rises in vertical direction with the rotation interlocking ground of location release lever 16 or decline.When user hold the location leading section of release lever 16 and running fix release lever 16 to rise time, blocking lever 31 is risen by corresponding manual force.When the leading section of user operation location release lever 16 is to decline, blocking lever 31 can be declined by corresponding manual force.Alternately, when user discharges the leading section of location release lever 16, blocking lever 31 can be declined by the weight of himself.
As shown in figure 22, for the location-plate 30 of base plate installing and be fixed to bracket 20, in the link position hole 30a that blocking lever 31 can be inserted into location-plate 30 with the link position of breaker body 10 or test position mobile with interlocking or test position hole 30b, so that it moves vertically to lock position (down position) and off-position (lifting position), in the movement of lock position place breaker body 10 by locking, discharge by leaving link position hole 30a or test position hole 30b at off-position place breaker body 10 by the movement of locking.
Connecting pin guiding tube 32 is so a kind of parts: it guides the vertical movement of blocking lever 31 and determines the restriction for the vertical movement of blocking lever 31 and the rotation for location release lever 16.Connecting pin guiding tube 32 is provided with vertical long holes 32a to determine the restriction of the vertical movement for blocking lever connecting pin 16e.Connecting pin guiding tube 32 is mounted by welding and is fixed to base plate 33.
Base plate 33 is arranged on the bottom of breaker body 10, and by rotating shaft supporting bracket 16c being fixed to its supporting rotating shaft supporting bracket 16c that comes up (but not shown can with reference to the 16c of figure 6).Base plate 33 is provided with the through hole (not shown) be immediately positioned at below blocking lever 31.Here, this through hole allows blocking lever 31 to pass through through wherein and vertically moving.
As shown in Figure 12 to Figure 14, locking magnetic mechanism 40 comprises housing 42, lock pin 41, spring 43 and electromagnet 44.
Housing 42 is set to the shell of locking magnetic mechanism 40.
Lock pin 41 is the parts that can move to lock position and off-position point-blank, at lock position place lock pin 41, location release lever 16 is locked at first position, and at off-position place, when applying specified control electric power, lock pin 41 discharges location release lever 16 to move it the second place.It is inner and come across the outside of housing 42 to enter into housing 42 that lock pin 41 is mounted to housing 42.
As shown in figure 14, spring 43 is installed in housing 42, and provides elastic force to lock pin 41 by flange portion 41a, makes lock pin 41 be projected into the outside of housing 42.
As shown in figure 14, electromagnet 44 is installed in housing 42, and at the specified control electric power of applying (such as, the AC voltage of the DC voltage of tens volts to 220 volts or tens volts to 250 volts) time electromagnetic force is provided, this electromagnetic force attracts lock pin 41 to overcome the elastic force of spring 43 and to enter into the inside of housing 42 by flange portion 41a.Especially, specified control electric power (such as, the DC voltage of tens volts to 220 volts or the AC voltage of tens volts to 250 volts) be with as driving supply of electric power to the identical electric power of the control electric power of the control unit of breaker body 10.
Such as, electromagnet 44 is configured with iron core and the coil round corresponding iron core winding.Here, coil is electrically connected and is mechanically connected to the first electric power signal line 46a can be flowed in coil by the electric current of the first electric power signal line 46a supply.The direction vertical with coil produces magnetic flux, makes electromagnet 44 produce electromagnetic force, this electromagnetic force attracts lock pin 41 to enter into the inside of housing 42 by flange portion 41a.
Interlocking lockable mechanism according to exemplary embodiment of the present invention comprises connector further, and it can connect the first electric power signal line 46a and the second electric power signal line 46b to apply specified control electric power to electromagnet 44.Connector comprises: the first connector 47a, and the first electric power signal line 46a is connected to the first connector 47a; With the second connector 47b, the second electric power signal line 46b is connected to the second connector 47b.First connector 47a and the second connector 47b all can be configured with the exterior insulation material of the corresponding connecting pin of multiple connecting pin or connecting pin bores and support or connecting pin bores.
Structure for supplying specified control electric power to become because of the structure of connector and simplifies very much.Thus, the assembling of locking magnetic mechanism 40 can be simplified, and the built-up time of locking magnetic mechanism 40 can be reduced.
As shown in Figure 12 to Figure 13, housing 42 can be supported by support bracket 48, and support bracket 48 can be fixed to the upper surface of base plate 33 by the fixed part of such as bolt.
Meanwhile, the operation of the interlocking lockable mechanism according to exemplary embodiment of the present invention of structure is as mentioned above described with reference to Figure 12 to Figure 21.
First, assuming that such as drive supply of electric power to the specified control electric power of the control electric power of the control unit of breaker body 10 (such as allow go beyond the scope within there is the electric power that voltage is not less than the DC voltage of tens volts to 220 volts or the AC voltage of tens volts to 250 volts) be supplied to locking magnetic mechanism 40 as electric power by the second electric power signal line 46b, the second connector 47b, the first connector 47a and the first electric power signal line 46a.
To be described under state that breaker body 10 is placed in test position place when user view is by moving to the operation of lockable mechanism of interlocking when link position operates vacuum circuit-breaker by breaker body 10.
Because breaker body 10 is placed in test position place, as shown in figure 16, blocking lever 31 is inserted in the test position hole 30b of location-plate 30 and makes breaker body 10 be placed in the movement of breaker body 10 by the lock position of locking (down position) place.
In this state, specified control electric power (such as allow go beyond the scope in there is the electric power (such as, having the electric power exceeding voltage than large 5 volts of specified control electric power) that voltage is the DC voltage of tens volts to 220 volts or the AC voltage of tens volts to 250 volts) be supplied to locking magnetic mechanism 40.Thus, in fig. 14, electromagnet 44 is fully magnetized to produce electromagnetic force, and this electromagnetic force attracts lock pin 41 overcome the magnetic force of spring 43 and enter into the inside of housing 42 by flange portion 41a.Therefore, as shown in Figure 13 and Figure 18, lock pin 41 leaves the lock pin holding tank portion 16a3 of location release lever 16, thus release location release lever 16.
Correspondingly, user can promote location release lever 16 when holding the leading section of location release lever 16, and allows blocking lever 31 to leave the test position hole 30b of location-plate 30.
In this state, if user with corresponding user hold the handle 17 of breaker body 10 time promote breaker body 10 backward further, so move backward further when breaker body 10 is rolled along the guide rail 25 of bracket 20.
Finally, user with corresponding user hold handle 17 time do not promote breaker body 10 but manually operate actuation handle (but not shown can see 26 of Fig. 4), make the pressure produced by actuation handle 26 be supplied to breaker body 10 by actuator lever 12.Thus, breaker body 10 moves to last link position, is connected to the inside splicing ear 23a of bracket 20 in the body terminal 15 of link position place breaker body 10.
Therefore, the body terminal 15 of the breaker body 10 shown in Figure 21 is connected on the inside splicing ear 23a of the bracket 20 shown in Figure 22, and electric current can be flowed in the main circuit between mains side power circuit and electric loading side power circuit.Breaker body 10 is connected to the control power terminal (not shown) of bracket 20, and simultaneously, as shown in figure 20, the blocking lever 31 be arranged on below breaker body 10 is inserted in the 30a of link position hole when moving backward along the location-plate 30 on the base plate 24 being arranged on bracket 20.Thus, the movement of breaker body 10 is stopped.
Next, if user operation is arranged on the close push button (being in other words push button) of the front guidance panel of breaker body 10, when so in the vacuum interrupter of the main circuit unit 14 for each electrode, armature contact contacts fixed contact, circuit between mains side power circuit and electric loading side power circuit is closed, and from mains side power circuit supply electric power to electric loading side power circuit.
Then, assuming that such as drive supply of electric power to the specified control electric power of the control electric power of the control unit of breaker body 10 (such as allow go beyond the scope in there is the electric power that voltage is less than the DC voltage of tens volts to 220 volts or the AC voltage of tens volts to 250 volts), be supplied to locking magnetic mechanism 40 as electric power by the second electric power signal line 46b, the second connector 47b, the first connector 47a and the first electric power signal line 46a.
To be described under state that breaker body 10 is placed in test position place when user view is by moving to the operation of lockable mechanism of interlocking when link position operates vacuum circuit-breaker by breaker body 10.
Because breaker body 10 is placed in test position place, as shown in figure 16, blocking lever 31 is inserted in the test position hole 30b of location-plate 30, makes breaker body 10 be placed in the movement of breaker body 10 by the lock position of locking (down position) place.
In this state, specified control electric power (such as having the electric power that voltage is less than the DC voltage of tens volts to 220 volts or the AC voltage of tens volts to 250 volts) is supplied to locking magnetic mechanism 40.Therefore, in fig. 14, electromagnet 44 is not magnetized fully, and the electromagnetic force produced by electromagnet 44 can not overcome the elastic force of spring 43.
Therefore, as shown in figures 12 and 15, lock pin 41 can not to enter in housing 42 and to be placed in the lock pin holding tank portion 16a3 of location release lever 16, thus location release lever 16 is by locking.
Therefore, because user can not promote location release lever 16 when holding the leading section of location release lever 16, the front end of release lever 16 is located so as shown in figure 17 in decline state.Meanwhile, as shown in figure 16, locate release lever 16 to be locked in blocking lever 31 and to be inserted into state in the test position hole 30b of location-plate 30.
In this state, although user with corresponding user hold handle 17 time promote breaker body 10, breaker body 10 is not also still moved to keep halted state by locking backward.
As mentioned above, interlocking lockable mechanism for vacuum circuit-breaker according to the present invention comprises the locking magnetic mechanism 40 with lock pin 41, when applying specified control electric power, lock pin 41 release location release lever 16 rises to make it, and when applying to be less than the electric power of specified control electric power, location release lever 16 is locked at down position place by lock pin 41.Thus, only when applying specified control electric power, breaker body 10 can move to link position from test position, therefore, when the normal circuit handover operation of breaker body 10 cannot be ensured owing to not applying specified control electric power, the operation of vacuum circuit-breaker can be blocked completely and prevent the generation of serious electric power accident in advance.
Interlocking lockable mechanism for vacuum circuit-breaker according to the present invention comprises connector further, and it can connect the electric power signal line for applying specified control electric power, thus can greatly simplify for the structure supplying specified control electric power.
According to of the present invention in the interlocking lockable mechanism of vacuum circuit-breaker, location release lever comprises and allows lock pin through lock pin holding tank portion wherein.Therefore, lock pin is placed in release location release lever institute along on the mobile route in direction, makes it possible to stop location release lever to be located on release lever direction in release and moves.
Above-described embodiment and advantage are only exemplary, and should not be construed as restriction of the present disclosure.This instruction can easily be applied on the equipment of other types.This specification is intended to be illustrative, instead of the scope of restriction claim.For a person skilled in the art, multiple replacement, improvement and change will be apparent.The feature of exemplary embodiment as described herein, structure, method and other characteristics can combine in every way, to obtain extra and/or optional exemplary embodiment.
Because eigen can be embodied as various ways when not departing from its characteristic, so should be understood that equally, except as otherwise noted, above-described embodiment not limited by any details of aforementioned specification, but the explanation of broad sense should be carried out in claims limited range, therefore, drop on all modifications in the scope of claim or the equivalency range of this scope and improve intention and comprised by appended claim.
Claims (4)
1., for an interlocking lockable mechanism for vacuum circuit-breaker, described vacuum circuit-breaker has:
Bracket, it provides the shell of described vacuum circuit-breaker, and described shell has the power supply side terminal for each electrode and the electric loading side terminal for each electrode;
Breaker body, it can move to link position and test position, and described in link position place, breaker body is connected to the terminal of described bracket, controls electric power be supplied to described breaker body at test position place;
Location-plate, it is fixed to the bottom surface of described bracket and has location hole corresponding with described link position and described test position respectively; And
Blocking lever, it is mounted to outstanding in the below of described breaker body downwards and can vertically moves to lock position and off-position, at lock position place, described blocking lever is inserted in the location hole of described location-plate, so that with the movement of arriving the mobile breaker body described in ground locking of interlocking of described link position or test position of described breaker body, and at off-position place by leaving station holes and discharge the locking of the movement of described breaker body
It is characterized in that, described interlocking lockable mechanism comprises:
Location release lever, it is connected to described blocking lever and makes to discharge described breaker body by promoting described blocking lever and allowing described blocking lever to leave institute's station holes, and described location release lever be arranged on described breaker body below thus can rotate to corresponding to the lock position of described blocking lever primary importance or correspond to the second place of off-position of described blocking lever, described in first position, locate release lever pass through the described primary importance of arrival that declines, and described in second position, locate release lever by rising the described second place of arrival; With
Locking magnetic texure, it has lock pin, described lock pin can move to lock position and off-position point-blank, locates release lever and be locked in described first position described in the place of lock position, and described in the place of off-position, locates release lever be released thus can move to the described second place.
2., as claimed in claim 1 for the interlocking lockable mechanism of vacuum circuit-breaker, wherein said locking magnetic mechanism comprises:
Housing, it forms the shell of described locking magnetic mechanism;
Lock pin, it is mounted to described housing to enter into the inside of described housing and to appear at the outside of described housing;
Spring, it is arranged in described housing, and provides elastic force to make described lock pin be projected into the outside of described housing; And
Electromagnet, it is arranged in described housing, and provides electromagnetic force when applying specified control electric power, and lock pin described in described electromagnetic attracting force is to overcome the elastic force of described spring and to enter into the inside of described housing.
3. as claimed in claim 2 for the interlocking lockable mechanism of vacuum circuit-breaker, comprise connector further, it connects the electric power signal line for applying described specified control electric power.
4., as claimed in claim 1 for the interlocking lockable mechanism of vacuum circuit-breaker, described location release lever has the described lock pin of permission through lock pin holding tank portion wherein.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110138553A KR20130071183A (en) | 2011-12-20 | 2011-12-20 | Interlock lock mechanism for vacuum circuit breaker |
| KR10-2011-0138553 | 2011-12-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103177902A CN103177902A (en) | 2013-06-26 |
| CN103177902B true CN103177902B (en) | 2015-08-05 |
Family
ID=48637685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210555568.0A Expired - Fee Related CN103177902B (en) | 2011-12-20 | 2012-12-19 | For the interlock lock mechanism of vacuum circuit-breaker |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20130071183A (en) |
| CN (1) | CN103177902B (en) |
| BR (1) | BR102012032578A2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200486925Y1 (en) * | 2014-04-14 | 2018-07-16 | 엘에스산전 주식회사 | Switchboard having vibration proof device |
| CN104037638B (en) * | 2014-06-09 | 2016-06-22 | 国家电网公司 | A kind of earthing handcart locking device |
| KR102164332B1 (en) * | 2017-01-31 | 2020-10-12 | 미쓰비시덴키 가부시키가이샤 | breaker |
| CN110441678B (en) * | 2019-08-21 | 2024-05-03 | 巨邦集团有限公司 | Test device of vacuum circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000019909A (en) * | 1998-09-16 | 2000-04-15 | 이종수 | Ground switch interlocking apparatus of vacuum interrupter for distributing board |
| CN2658004Y (en) * | 2003-11-15 | 2004-11-24 | 徐国前 | Electromagnetic lock device used on steering wheel of vehicle and motorcycle |
| CN201750082U (en) * | 2010-08-06 | 2011-02-16 | 常熟开关制造有限公司(原常熟开关厂） | Chassis locking device of handcart type circuit breaker |
| CN102117719A (en) * | 2009-12-31 | 2011-07-06 | Ls产电株式会社 | Plug interlock device for circuit breaker and circuit breaker having the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005160280A (en) * | 2003-10-31 | 2005-06-16 | Fuji Electric Fa Components & Systems Co Ltd | High-voltage enclosed switchboard |
-
2011
- 2011-12-20 KR KR1020110138553A patent/KR20130071183A/en active Search and Examination
-
2012
- 2012-12-19 BR BR102012032578-0A patent/BR102012032578A2/en not_active Application Discontinuation
- 2012-12-19 CN CN201210555568.0A patent/CN103177902B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000019909A (en) * | 1998-09-16 | 2000-04-15 | 이종수 | Ground switch interlocking apparatus of vacuum interrupter for distributing board |
| CN2658004Y (en) * | 2003-11-15 | 2004-11-24 | 徐国前 | Electromagnetic lock device used on steering wheel of vehicle and motorcycle |
| CN102117719A (en) * | 2009-12-31 | 2011-07-06 | Ls产电株式会社 | Plug interlock device for circuit breaker and circuit breaker having the same |
| CN201750082U (en) * | 2010-08-06 | 2011-02-16 | 常熟开关制造有限公司(原常熟开关厂） | Chassis locking device of handcart type circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| BR102012032578A2 (en) | 2020-02-27 |
| CN103177902A (en) | 2013-06-26 |
| KR20130071183A (en) | 2013-06-28 |
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