CN104916505B - Early dynamic auxiliary low-voltage circuit breaker and electrical interlocks system - Google Patents
Early dynamic auxiliary low-voltage circuit breaker and electrical interlocks system Download PDFInfo
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- CN104916505B CN104916505B CN201510359325.3A CN201510359325A CN104916505B CN 104916505 B CN104916505 B CN 104916505B CN 201510359325 A CN201510359325 A CN 201510359325A CN 104916505 B CN104916505 B CN 104916505B
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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
- H01H71/1009—Interconnected mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
Abstract
Early dynamic auxiliary low-voltage circuit breaker and electrical interlocks system, early dynamic auxiliary low-voltage circuit breaker includes shell block, and auxiliary contact, operating mechanism, main contact and early dynamic device on shell block, early dynamic device includes the driving section that can be engaged with operating mechanism and the drive division being engaged with auxiliary contact, during the feed motion driving main contact of described operating mechanism is closure state by disjunction State Transferring, operating mechanism drives early dynamic device to be transformed into the second stable state by the first stable state simultaneously；The process that early dynamic device is transformed into the second stable state by the first stable state includes first driving the morning of auxiliary contact change-over switch state to move process, then the delay process of the second stable state is reached again, and operating mechanism drives the drive division of early dynamic device to act on auxiliary contact by driving section during early dynamic makes auxiliary contact change-over switch state.Electrical interlocks system is made up of two early dynamic auxiliary low-voltage circuit breakers.With the characteristics of simple in construction, reliability is high.
Description
Technical field
The present invention relates to low-voltage circuit breaker field, and in particular to a kind of Special low-voltage that can be used for setting up electrical interlocks system
Breaker, particularly a kind of early dynamic auxiliary low-voltage circuit breaker.
Background technology
It is well known that low-voltage circuit breaker is usually used in setting up electrical system, such as uses low-voltage circuit breaker as a kind of low-voltage electrical apparatus
Electrical interlocks system is set up, it includes multiple low-voltage circuit breakers, and exists between multiple low-voltage circuit breakers in the system and connect
The control planning of lock, when a low-voltage circuit breaker in system performs closing operation, closing operation action can control system
Conversion (i.e. turn of the closure of the main contact of low-voltage circuit breaker/disjunction state of the on off state of interior other low-voltage circuit breakers
Change).So that two low-voltage circuit breakers form electrical interlocks system as an example, a kind of conventional method can be two low-voltage circuit breakers
On be respectively equipped with auxiliary contact and shunt release, wherein the normally opened contact of the auxiliary contact of a low-voltage circuit breaker with another
The shunt release series connection of low-voltage circuit breaker, when a low-voltage circuit breaker performs closing operation, the action of its closing operation is driven
The normally opened contact of its auxiliary contact is set to be converted to closure, to connect another low-voltage circuit breaker with the normally opened contact coupled in series
Shunt release electric power loop, so as to cause another low-voltage circuit breaker conversion that it is controlled to open by the shunt release
Off status.Lacked however, the time sequencing of existing low-voltage circuit breaker, the action of its main contact and the action of auxiliary contact is present
Fall into, specific manifestation form is such as：The action of auxiliary contact is almost synchronous with the action of the main contact of breaker；The action of auxiliary contact
Action with the main contact of breaker is without the sequencing determined；The action of auxiliary contact is later than the main contact of breaker
Action.Obviously, the time sequencing defect of above-mentioned form existing for existing low-voltage circuit breaker, for setting up electrical interlocks system,
Potential safety hazard or integrity problem be present, for example, when setting up the electrical interlocks system to supply power with double circuit with two low-voltage circuit breakers,
If the main contact of its another low-voltage circuit breaker controlled can not be locked before the main contact closure of a low-voltage circuit breaker
In advance disjunction, then can cause serious security incident.Therefore, for the main contact of the action of auxiliary contact and breaker be present
Action it is almost synchronous, or action is without the sequencing determined, and the action of auxiliary contact is later than the master of breaker
The existing low-voltage circuit breaker of the defects of action of contact, its use range certainly will be very limited.It should be appreciated that arrive, existing
In some low-voltage circuit breakers, if without auxiliary contact can be controlled early to move in the early motivation structure of the main contact of breaker, it is this
Breaker can not be early dynamic auxiliary low-voltage circuit breaker, because its morning without auxiliary contact is moved moves function in the morning of main contact,
Even if there is action of the action earlier than the main contact of breaker of auxiliary contact, but because it have ignored and early dynamic work(
The related special design of energy, so can not obtain auxiliary contact early moves the time long enough in main contact, sufficiently stable technology
Effect, thus cause to still have risk when setting up electrical interlocks system, because the magnet coil due to shunt release
Reason, the startup moment of State Transferring moment of disjunction/closure of auxiliary contact to shunt release, when having one section of hysteresis
Between, if the morning of auxiliary contact move in main contact time span be less than shunt release start phase, still not
The main contact for another breaker that can be controlled it implements the positive lock of advancement.Obviously, the invention solves skill
Art problem is, increases dynamic device of special morning on low-voltage circuit breaker, to ensure that auxiliary contact acts earlier than main contact, while also obtains
The morning for obtaining auxiliary contact moves time long enough, sufficiently stable effect, and such as early dynamic time reaches the delay more than shunt release
Length, to improve the safety and reliability of electrical interlocks system, so as to extend the use function of circuit breaker and using model
Enclose, meet the needs of current low-voltage circuit breaker product market.
Based on security, the reliability for improving electrical interlocks system, designing the key technology proposed to low-voltage circuit breaker will
Ask, be exactly that auxiliary contact should be more early than main contact dynamic, and between stabilization, sufficiently long effective time between two actions
Every, and realizing that the concrete technical scheme of the technical requirements can have various ways, the present invention is using on low-voltage circuit breaker
Increase the mode that special morning moves device, compared with other manner, mode of the invention has that simple in construction, manufacturing cost is low, reliable
Property it is good the characteristics of, in addition, the solution of the present invention be not related to existing auxiliary contact suitability improve.Of course it is not excluded may
The other manner of appearance, such as by way of improving auxiliary contact structure, but this mode is directed not only to the entirety of auxiliary contact
Structure is improved, but also the suitability that can involve breaker structure is improved, therefore need to increase substantially manufacturing cost, additionally may be used
It can trigger the related problem for needing further to solve, such as the compatibility issue between auxiliary contact and breaker.However, low
Increasing dynamic device of special morning on voltage breaker, it realizes that difficulty is, the structure of early dynamic device need to meet simple and easy requirement, due to
This mode is related to the operating mechanism of breaker, and the operational motion performed by operating mechanism, is not only to close a floodgate, and also has point
Lock, detain, automatically jumping, therefore also to resolve again, the increase of early dynamic device is without prejudice to the original combined floodgate of operating mechanism, separating brake, again
Button, automatically jumping action, and operating mechanism perform separating brake, detain again, automatically jumping action when, prevent may generation auxiliary
The problem of mistake of contact is early dynamic.
The content of the invention
The defects of it is an object of the invention to overcome prior art, there is provided a kind of morning simple in construction, that reliability is high is moved auxiliary
Help low-voltage circuit breaker and electrical interlocks system.
To achieve the above object, present invention employs following technical scheme：
A kind of early dynamic auxiliary low-voltage circuit breaker, including shell block 1, and auxiliary contact 3, operation machine on shell block 1
Structure 4 and main contact, described early dynamic auxiliary low-voltage circuit breaker also include early dynamic device 5, and early dynamic device 5 includes to connect with operating mechanism 4
The driving section 51a coordinated and the drive division 51b being engaged with auxiliary contact 3 are touched, in the feed motion of described operating mechanism 4
During driving main contact is closure state by disjunction State Transferring, operating mechanism 4 drives early dynamic device 5 by the first stabilization simultaneously
State Transferring is to the second stable state；Described morning moves the process bag that device 5 is transformed into the second stable state by the first stable state
Including early dynamic device 5 first drives the morning of the change-over switch state of auxiliary contact 3 to move process, and then early dynamic device 5 reaches the second stable state again
Delay process, operating mechanism 4 drives the drive division 51b of early dynamic device 5 to act on auxiliary by driving section 51a during early dynamic
Make the change-over switch state of auxiliary contact 3 on contact 3.
Further, the automatically jumping action of described operating mechanism 4, pull work or separating brake action again early dynamic device 5 can be made extensive
Again to the first stable state or stably in the first stable state, while main contact is also set to be converted to disjunction state or stably in disjunction
State.
Further, described morning, which moves device 5, includes support 51, spring 52, and support 51 is arranged on shell block 1 or behaviour by revolute pair
On the fixture for making mechanism 4, support 51 is provided with driving section 51a and drive division 51b, and the elastic force of spring 52 can drive 51 turns of support
Move and reach the first stable state, operating mechanism 4 can drive support 51 to rotate and reach the second stable state.
Further, the revolute pair of dynamic device 5 of described morning includes rotary shaft 53 and the axis hole 51c being arranged on support 51, turns
Moving axis 53 is arranged on the fixture of shell block 1 or operating mechanism 4, and the axis hole 51c on support 51 is sleeved in rotary shaft 53；It is described
The one end of support 51 is provided with axis hole 51c, and the other end is provided with the drive division 51b being correspondingly arranged with the auxiliary push-rod 3a of auxiliary contact 3, branch
The middle part of frame 51 is provided with the driving section 51a being correspondingly arranged with the actuating arm 41a on the Rocker arm 41 of operating mechanism 4 to side extension；Institute
It is torsion spring to state spring 52, and it is sleeved in rotary shaft 53, and its one end couples with support 51, and the other end couples with shell block 1.
Further, the drive division 51b that device 5 is early moved when early dynamic device 5 is in the first stable state contacts with auxiliary contact 3, early
The drive division 51b that device 5 is early moved when dynamic device 5 is in the second stable state separates with auxiliary contact 3；Drive division 51b and auxiliary contact 3
Process is moved for the morning of early dynamic device 5 by the process for touching the change-over switch state of auxiliary contact 3, by the change-over switch shape of auxiliary contact 3
The process of state to the second stable state is delay process.
Further, when operating mechanism 4 is in "on" position, the actuating arm 41a of operating mechanism 4 contacts with driving section 51a,
Automatically jumping is in operating mechanism 4, is detained again or actuating arm 41a separates with driving section 51a during gate-dividing state.
Further, described early dynamic auxiliary low-voltage circuit breaker includes multiple auxiliary contacts, and operating mechanism 4 can pass through early dynamic device
5 drive the conversion of the on off state of multiple auxiliary contacts simultaneously.
Further, in addition to the Alarm contactor 2 that is arranged on shell block 1, described Alarm contactor 2 shake with operating mechanism 4
Arm 41 coordinates；The contact A L that automatically jumping action alarm contact 2 is performed in operating mechanism 4 is converted to disjunction state；Operating
Mechanism 4 performs to be detained or the contact A L of separating brake action alarm contact 2 is converted to closure state again；Combined floodgate is performed in operating mechanism 4
The contact A L of action alarm contact 2 is maintained at closure state.
Further, it is to touch auxiliary device 5 early to be moved during early dynamic to drive the mode of the change-over switch state of auxiliary contact 3
First 3 contact A X is closure state by disjunction State Transferring.
Present invention also offers a kind of electrical interlocks system, including the above-mentioned first early dynamic auxiliary low-voltage circuit breaker QF1 and
Second early dynamic auxiliary low-voltage circuit breaker QF2；The contact A X of the auxiliary contact 3 of the first described early dynamic auxiliary low-voltage circuit breaker QF1
With the second early dynamic auxiliary low-voltage circuit breaker QF2 shunt release C coupled in series；The second described early dynamic auxiliary low-voltage circuit breaker
The early dynamic auxiliary low-voltage circuit breaker QF1 of contact A X and first of QF2 auxiliary contact 3 shunt release C coupled in series.
Present invention also offers a kind of electrical interlocks system, including the above-mentioned first early dynamic auxiliary low-voltage circuit breaker QF1 and
Second early dynamic auxiliary low-voltage circuit breaker QF2；The contact A L of the Alarm contactor 2 of the first described early dynamic auxiliary low-voltage circuit breaker QF1
With the early dynamic auxiliary low-voltage circuit breaker QF2 of the contact A X of auxiliary contact 3 and second shunt release C coupled in series；Described
The two early dynamic auxiliary low-voltage circuit breaker QF2 contact A L of Alarm contactor 2 and the contact A X of auxiliary contact 3 is low with the first early dynamic auxiliary
Voltage breaker QF1 shunt release C coupled in series.
Further, the morning of the first described early dynamic auxiliary low-voltage circuit breaker QF1 moves the delay time T of the delay process of device 5
More than its second early dynamic auxiliary low-voltage circuit breaker QF2 controlled shunt release C start phase t；Described
The delay time T that two early dynamic auxiliary low-voltage circuit breaker QF2 morning moves the delay process of device 5 is dynamic auxiliary more than the first morning that it is controlled
Help low-voltage circuit breaker QF1 shunt release C start phase t.
The early dynamic auxiliary low-voltage circuit breaker of the present invention moves device structure by the mechanical morning of advantages of simple, realizes low pressure and breaks
Device auxiliary contact in closing operation in road can not only act earlier than the main contact of breaker, and the morning of auxiliary contact is dynamic tactile with master
There is effective time interval between the action of head.The electrical interlocks system realized using the early dynamic auxiliary low-voltage circuit breaker of the application
System, can effectively it ensure in electrical interlocks system before the main contact closure of a low-voltage circuit breaker, the master of another low-voltage circuit breaker
The disjunction in advance of contact.In addition, low-voltage circuit breaker is additionally provided with Alarm contactor, by joining auxiliary contact, Alarm contactor and electrically
The shunt release of another low-voltage circuit breaker is connected in series in loop in lock system, can prevent the handle malfunction of low-voltage circuit breaker
Cause the connection of shunt release.
Brief description of the drawings
Fig. 1 is the overall structure schematic perspective view of one embodiment of the early dynamic auxiliary low-voltage circuit breaker of the present invention；
Fig. 2 is the partial structurtes schematic perspective view of the embodiment of the early dynamic auxiliary low-voltage circuit breaker of the invention shown in Fig. 1,
Alarm contactor 2 and auxiliary contact 3 have been shed in figure.
Fig. 3 is the morning of the embodiment of the early dynamic auxiliary low-voltage circuit breaker of the invention shown in Fig. 1 to move device 5, Rocker arm 41 and auxiliary
Help the exploded perspective view of contact 3.
Fig. 4 is the morning of the embodiment of the early dynamic auxiliary low-voltage circuit breaker of the invention shown in Fig. 3 to move device 5, Rocker arm 41 and auxiliary
The matching relationship schematic diagram of contact 3 is helped, is that early dynamic auxiliary low-voltage circuit breaker is in automatically jumping state, again buckle-like state shown in figure
Or the matching relationship of gate-dividing state.
Fig. 5 is the morning of the embodiment of the early dynamic auxiliary low-voltage circuit breaker of the invention shown in Fig. 3 to move device 5, Rocker arm 41 and auxiliary
The matching relationship schematic diagram of contact 3 is helped, is the matching relationship that early dynamic auxiliary low-voltage circuit breaker is in "on" position shown in figure.
Fig. 6 is move the support 51 of device 5 morning of the embodiment of the early dynamic auxiliary low-voltage circuit breaker of the invention shown in Fig. 3 zero
Part structural representation.
Fig. 7 to Fig. 9 is an implementation of the electrical interlocks system set up using the early dynamic auxiliary low-voltage circuit breaker of the present invention
The electrical block diagram of example.Wherein：
Fig. 7 show the first early dynamic auxiliary low-voltage circuit breaker QF1 and is in automatically jumping state；
Fig. 8 show the first early dynamic auxiliary low-voltage circuit breaker QF1 and is in buckle-like state or gate-dividing state again；
Fig. 9 show the first early dynamic auxiliary low-voltage circuit breaker QF1 and is in "on" position.
Embodiment
The embodiment provided below in conjunction with accompanying drawing 1 to 6, further illustrate the tool of the early dynamic auxiliary low-voltage circuit breaker of the present invention
Body embodiment.The early dynamic auxiliary low-voltage circuit breaker of the present invention is not limited to the following description.
The early dynamic auxiliary low-voltage circuit breaker of the present invention, including shell block 1, and it is Alarm contactor 2 on shell block 1, auxiliary
Help contact 3, operating mechanism 4 and main contact (not shown).Main contact is arranged in shell block 1, and operating mechanism 4 connects with main contact
Driving head closure and disjunction can be driven by connecing；Alarm contactor 2 and auxiliary contact 3 are arranged on the both sides of operating mechanism 4, operating mechanism 4
It is connected with Alarm contactor 2 and auxiliary contact 3, Alarm contactor 2 can be driven and auxiliary contact 3 closes and disjunction.Described morning is moved auxiliary
The morning that helping low-voltage circuit breaker also includes being arranged on shell block 1 moves device 5, and early dynamic device 5 includes the biography that can be engaged with operating mechanism 4
The dynamic portion 51a and drive division 51b being engaged with auxiliary contact 3, operating mechanism 4 drive auxiliary contact 3 to connect by early dynamic device 5
Realize closure and disjunction.Early dynamic device 5 has the first stable state and two stable working conditions of the second stable state, described
Operating mechanism 4 feed motion driving main contact by disjunction State Transferring be closure state during, operating mechanism 4 is simultaneously
The early dynamic device 5 of driving is transformed into the second stable state by the first stable state；The automatically jumping action of operating mechanism 4, work is pulled again
Or separating brake action can make early dynamic device 5 return to the first stable state or stably in the first stable state, while also turn main contact
It is changed to disjunction state or stably in disjunction state.Described morning moves device 5 and is transformed into the second stable state by the first stable state
Process, which includes early dynamic device 5, first drives the morning of the change-over switch state of auxiliary contact 3 to move process, and then it is steady to reach second again for early dynamic device 5
Determine the delay process of state, operating mechanism 4 drives the drive division 51b of early dynamic device 5 to act on by driving section 51a during early dynamic
Make the change-over switch state of auxiliary contact 3 on auxiliary contact 3；After auxiliary contact 3 completes change-over switch state again, early dynamic device 5 passes through
The conversion that delay process completes two stable working conditions is crossed, completes to be transformed into second by the first stable state in early dynamic device 5
While stable state or afterwards, main contact completes the conversion by disjunction state to closure state.The present invention is using low
Increase the mode of early dynamic device on voltage breaker, make operating mechanism during driving main contact closes a floodgate, auxiliary contact can be earlier than
The main contact action of breaker, has the characteristics of simple in construction, manufacturing cost is low, good reliability, and be applicable to existing auxiliary
Help contact.
Shell block 1, Alarm contactor 2, auxiliary contact 3, operating mechanism 4 and the main contact of the present invention can use existing structure,
Installation relation and mounting structure between them can adopt in a known manner.The auxiliary contact 3 of the present embodiment is using built-in
Frame mode, i.e., it is in shell block 1.The present invention can also be not provided with Alarm contactor, set Alarm contactor purpose be by
The shunt release series connection of another breaker in auxiliary contact, Alarm contactor and electrical interlocks system, to prevent that handle is artificial
Maloperation causes shunt release power on, causes malfunction.Alarm contactor 2 can use built-in frame mode,
The frame mode of external can be used, including：The structure side of the subsidiary Alarm contactor 2 that may be selectively installed at outside shell block 1
Formula；Or the frame mode for containing Alarm contactor 2 is reserved on operating mechanism 4 and shell block 1.Alarm contactor 2 should have as provided
The general utility functions of the indication signal of the trip status of breaker, it with operating mechanism 4 in the action piece that can react trip action
Establish mechanical coupling connecting relation, the action piece such as Rocker arm 4 or tripping (not shown) of described reaction trip action
Deng.The present invention preferentially uses following frame mode：The Rocker arm 41 of described Alarm contactor 2 and operating mechanism 4 coordinates；In operation machine
The contact A L that structure 4 performs automatically jumping operation alarm contact 2 is converted to disjunction state；Operating mechanism 4 perform detain again or point
The contact A L of lock operation alarm contact 2 is converted to closure state；Closing operation alarm contact 2 is performed in operating mechanism 4
Contact A L is maintained at closure state.
The concrete structure that described morning moves device 5 can have a kinds of schemes, a kind of preferable scheme as shown in Figures 3 to 5, Fig. 3
For the explosive view of early dynamic device, Fig. 4 is the structure chart for the first stable state that early dynamic device is in " high position ", and Fig. 5 is in for early dynamic device
The structure chart of second stable state of " low level ".Described morning, which moves device 5, includes support 51, spring 52, and support 51 passes through revolute pair
On shell block 1, the elastic force of spring 52 can drive support 51 to rotate and reach " high position " state, the Rocker arm 41 of operating mechanism 4
Support 51 can be driven to rotate and reach " low level " state.The revolute pair can have a variety of ways of realization, and preferable form such as Fig. 3 is extremely
Shown in Fig. 7, it includes rotary shaft 53 and the axis hole 51c being arranged on support 51, and rotary shaft 53 is arranged on shell block 1, certainly
It is not excluded for using by the way of the fixture (not shown) of operating mechanism 4；Described one end of support 51 is provided with axis hole
51c, the other end are provided with the drive division 51b being correspondingly arranged with the auxiliary push-rod 3a of auxiliary contact 3, and the middle part of support 51 extends to side
The driving section 51a being correspondingly arranged provided with the actuating arm 41a on the Rocker arm 41 with operating mechanism 4.Axis hole 51c suits on support 51
In rotary shaft 53, and support 51 is rotated around rotary shaft 53.When support 51 rotate in place clockwise, that is, prop up
Frame 51 rotates to " high position " state and reaches " high position " state；When support 51 rotate in place counterclockwise, i.e. support 51
Rotated to " low level " state and reach " low level " state.Spring 52 can use polytype, preferable type such as Fig. 3 to Fig. 7 institutes
The torsion spring shown, it is sleeved in rotary shaft 53, and its one end couples with support 51, and the other end couples with shell block 1, the elastic force of torsion spring 52
Direction drives support 51 to rotate clockwise, that is, drives support 51 to be rotated to " high position " state and eventually arrive at " high position " shape
State.
The support 51 that described morning moves device 5 is provided with driving section 51a and drive division 51b；Described driving section 51a and operation
Actuating arm 41a on the Rocker arm 41 of mechanism 4 coordinates, be in automatically jumping in operating mechanism 4, detain again or gate-dividing state under actuating arm
41a is separated (as shown in Figure 4) with driving section 51a, and the actuating arm 41a and driving section 51a during the closing operation of operating mechanism 4
Contact (as shown in Figure 5), when operating mechanism 4 is in "on" position, the actuating arm 41a of operating mechanism 4 contacts with driving section 51a.
Described drive division 51b and auxiliary contact 3 auxiliary push-rod 3a coordinate, and first stable state of " high position " is in early dynamic device 5
When early move the drive division 51b of device 5 and contacted with auxiliary contact 3, early dynamic device 5 when early dynamic device 5 is in second stable state of " low level "
Drive division 51b separated with auxiliary contact 3；The drive division 51b of early dynamic device 5 is to reach again after separating with auxiliary contact 3 " low
Second stable state of position ".Drive division 51b is early by the process for touching the change-over switch state of auxiliary contact 3 with auxiliary contact 3
The morning of dynamic device 5 moves process, is delay process by the process of the change-over switch state of auxiliary contact 3 to the second stable state.
The action process of the operating mechanism of the present embodiment breaker and early dynamic device is, main under the gate-dividing state of breaker
Contact is in disjunction state, and when early dynamic device is in first stable state of " high position ", the actuating arm 41a of operating mechanism 4 moves with early
The driving section 51a separation of device, the drive division 51b of early dynamic device are contacted with the auxiliary push-rod 3a of auxiliary contact 3, and drive division 51b is compressed
Auxiliary push-rod 3a makes the normally opened contact AX of auxiliary contact be in disjunction state (as shown in Figure 4).
When breaker is changed from gate-dividing state to "on" position, the actuating arm 41a of operating mechanism 4 touches early dynamic device
Driving section 51a, and drive support 51 to rotate counterclockwise, i.e. the drive division 51b of support 51 rotates to " low level " state, makes
Drive division 51b and auxiliary contact 3 auxiliary push-rod 3a are gradually disengaged；Auxiliary push-rod 3a reset make the contact A X of auxiliary contact 3 by
Disjunction State Transferring is closure state, and the loop where can making auxiliary contact 3 is turned on to drive in electrical interlocks system another
The shunt release of low-voltage circuit breaker goes to control another low-voltage circuit breaker to be converted to gate-dividing state by "on" position；Touched in auxiliary
After first 3 change-over switch state, operating mechanism 4 continues to drive support 51 to rotate the auxiliary push-rod for making drive division 51b and auxiliary contact 3
3a is kept completely separate and reaches second stable state of " low level ", and also band dynamic main contac is transformed into closure state, complete breaker by
Conversion (as shown in Figure 5) of the gate-dividing state to "on" position.The time that main contact is transformed into closure state is equal to or is later than early move
Device is transformed into the time of the second stable state.Before drive division 51b and auxiliary contact 3 auxiliary push-rod 3a are kept completely separate, auxiliary
Contact 3 has completed change-over switch state, and drive division 51b is not separated with auxiliary push-rod 3a and had early action；It is preferred that drive
The structure that dynamic portion 51b separates with auxiliary push-rod 3a, the time of delay process can be increased, by setting the distance of separation can be effective
Control the time of delay process.
When breaker is from "on" position to gate-dividing state or automatically jumping State Transferring, operating mechanism 4 resets, and operates machine
The actuating arm 41a of structure 4 separates with the driving section 51a of early dynamic device, and the main contact of breaker is converted to disjunction state by closure state,
The support 51 of early dynamic device 5 is driven by the elastic force of spring 52 to be rotated clockwise, and it is simultaneously steady to drive drive division 51b to be turned to by " low level "
" high position " state is scheduled on, the drive division 51b of early dynamic device is contacted with the auxiliary push-rod 3a of auxiliary contact 3 and is compressed auxiliary push-rod 3a
The normally opened contact AX of auxiliary contact is set to be converted to disjunction state by closure state.The driving section 51a that the present embodiment early moves device is set
It is not direct to be connected with operating mechanism 4 in the actuating arm 41a of operating mechanism 4 swing path, substantially reduce to operating mechanism
4 influence, without carrying out big change to existing breaker, existing most of breaker can be adapted to.In breaker by certainly
From trip status to detain again State Transferring, to gate-dividing state change when, early dynamic device maintains " high position " state.
It was found from action process of the operating mechanism with early moving device, the support 51 that described morning moves device 5 turns to from " high position "
The corner stroke of " low level " includes, and the morning for the contact A X change-over switch states for driving auxiliary contact 3 is turned to from " high position " state
Stroke is moved, and the delay stroke of " low level " state is turned to from contact A X change-over switch states.So-called corner stroke, is exactly propped up
Frame 51 turns to the angle that " low level " turned over from " high position ", is that early dynamic device 5 is transformed into " low level " shape by " high position " corresponding to it
The control process of state.So-called morning moves stroke, is exactly that support 51 turns to X turns of contact A for driving auxiliary contact 3 from " high position " state
The angle that on off state is turned over is changed, is the contact A X change-over switch states that early dynamic device 5 first drives auxiliary contact 3 corresponding to it
Early dynamic process.So-called delay stroke, it is exactly that support 51 turns to " low level " shape from the contact A X change-over switch states of auxiliary contact 3
The angle that state is turned over is early dynamic device 5 corresponding to it and then reaches the delay process of " low level " state again.As can be seen here, this hair
Bright corner stroke by support 51 and its including morning move stroke and delay stroke, create the key control of early dynamic device 5
Process and its including morning move process and delay process, it is achieved thereby that the morning of early dynamic auxiliary low-voltage circuit breaker moves function.
Described morning moves device 5 and is preferably mounted at shell block 1, can not be related to the adaptation of existing operating mechanism and auxiliary contact
Property improve, to realize that simple in construction, manufacturing cost is low, the effect of good reliability provides precondition.Certainly it is not excluded for obtaining
It is arranged on the other manner of this same effect, such as early dynamic device 5 in the fixture (not shown) of operating mechanism 4.This institute
The fixture stated, the part for referring to the frame (not shown) of composition operating mechanism 4 or being fixed in frame, and operating mechanism
4 are fixedly connected by described frame and shell block 1.This mounting structure of early dynamic device 5, relative on auxiliary contact
Mode, there is certain superiority, because early dynamic device 5 is arranged on auxiliary contact, then can not only be related to auxiliary contact
Overall structure is improved, but also the suitability that can involve a series of circuit breaker internal structures such as operating mechanism and shell block is improved, and is needed
Manufacturing cost is increased substantially, may additionally trigger the other related problems that must further solve, if auxiliary contact is with breaking
Compatibility issue between the device of road.
On early dynamic device 5 by the first stable state be transformed into the second stable state process include early dynamic device 5 first drive it is auxiliary
The morning of the change-over switch state of contact 3 is helped to move process, then early dynamic device 5 reaches the description of the delay process of the second stable state again,
Can be explained further for：The contact A X change-over switch states of auxiliary contact 3 are by early moving being transformed into " low level " from " high position " for device 5
The process control of state；The process that " low level " state is transformed into from " high position " of early dynamic device 5 includes early dynamic process and delay
Two control process of process, and process is early moved prior to the process of being delayed；Early dynamic process is used to realize that early dynamic device 5 first to drive auxiliary
Help the contact A X change-over switch states of contact 3；The contact A X's that delay process is used to obtain the late auxiliary contact 3 of main contact closure opens
The delay time T of off status conversion.It should be appreciated that arrive：Described delay time T, exactly early dynamic device 5 is from driving auxiliary contact 3
Contact A X change-over switch states moment to the moment for just arriving to " low level " state between time for being undergone.
Because described delay process can be obtained by the structure design of early dynamic device 5, therefore set by the structure of early dynamic device 5
Meter can obtain preferable delay time T.Particularly in the low-voltage circuit breaker with rapid closing function, because it can be realized
Main contact closure speed it is unrelated with human hand service speed, it is thus ensured that described delay time T stability, accuracy and
Reliability.Because the structure design of early dynamic device 5 can optimize according to delay time T requirement, such as shorten early dynamic process as far as possible,
And/or delay process etc. is lengthened, the presence of early dynamic device 5, it is that early dynamic auxiliary low-voltage circuit breaker is different from pressure common open circuit therefore
The key point of device, the low-voltage circuit breaker without early dynamic device 5 is generally without effective early dynamic function.
The concrete structure that described delay time T moves device 5 with operating mechanism 4 early is relevant, can by Optimal Structure Designing
It is also relevant with the configuration mode of shunt release with the numerical value that must be wanted, the selection of the numerical value.Conventional shunt release is matched somebody with somebody
The mode of putting can have two kinds：A kind of is the standard configuration shunt release of this early dynamic auxiliary low-voltage circuit breaker product, and it can be built-in
It is formula or external；Another kind is non-standard configuration shunt release, though it can be used for this early dynamic auxiliary in a manner of plug-in
Low-voltage circuit breaker product, but its start phase may be different from described standard configuration shunt release.During described delay
Between T be preferably greater than its shunt release C controlled start phase t, i.e., more than delay time T controlled point
Electrical apparatus release C start phase t is encouraged, in the case of using standard configuration shunt release configuration mode, that is, more than standard configuration point
Electrical apparatus release C start phase t is encouraged, so, when two identical morning dynamic auxiliary low-voltage circuit breakers are set up into electrical interlocks system
System, effective reliable early dynamic characteristic can be effectively ensured.Preferably to meet the possible needs of plug-in non-standard configuration shunt release,
Delay time T design can be selected according to the start phase Rational Parameters of most of shunt release products.
The morning of the present invention dynamic device 5 realizes auxiliary during the second stable state is transformed into by the first stable state and touched
The conversion of first 3 on off state, the modes of the contact A X change-over switch states of auxiliary contact 3 can have two kinds, one of which be by
Disjunction State Transferring is the mode of closure state, and another kind is the mode that disjunction state is converted to by closure state, both sides
Formula may be applicable to the present invention.By " normally closed " or " normally opened " mode for the contact A X for selecting auxiliary contact 3, institute just may be implemented in
The selection for the two ways stated.
The embodiment provided with reference to Fig. 3 to Fig. 9, further illustrate the early dynamic auxiliary low-voltage circuit breaker using the present invention
The embodiment of the electrical interlocks system of establishment, electrical interlocks system of the invention are not limited to the following description.
Referring to Fig. 3 to Fig. 9, the electrical interlocks system of the early dynamic auxiliary low-voltage circuit breaker establishment using the present invention of the invention
System, it includes the first early early dynamic auxiliary low-voltage circuit breaker QF2 of dynamic auxiliary low-voltage circuit breaker QF1 and second, and described first is early dynamic
The early dynamic auxiliary low pressure open circuit of contact A L and the contact A X of auxiliary contact 3 and second of auxiliary low pressure circuit breaker Q F1 Alarm contactor 2
Device QF2 shunt release C coupled in series, the contact A L of the described second early dynamic auxiliary low-voltage circuit breaker QF2 Alarm contactor 2
With the early dynamic auxiliary low-voltage circuit breaker QF1 of the contact A X of auxiliary contact 3 and first shunt release C coupled in series.Obviously, pass through
The early dynamic auxiliary low-voltage circuit breaker QF2 of contact A L and the contact A X of auxiliary contact 3 and second of Alarm contactor 2 shunt release C
The structure of coupled in series, it can effectively prevent the artificial maloperation of handle 42 from moving caused shunt release C power on,
Cause the malfunction of the electrical interlocks system of early dynamic auxiliary low-voltage circuit breaker and its composition.Due to the early dynamic auxiliary using the present invention
Low-voltage circuit breaker, so can be effectively ensured：During the first early dynamic auxiliary low-voltage circuit breaker QF1 performs closing operation, second
Early dynamic auxiliary low-voltage circuit breaker QF2 just can reliable separating brake before the first early dynamic auxiliary low-voltage circuit breaker QF1 main contact closure；
During second early dynamic auxiliary low-voltage circuit breaker QF2 performs closing operation, the first early dynamic auxiliary low-voltage circuit breaker QF1 is early second
Just can reliable separating brake before dynamic auxiliary low-voltage circuit breaker QF2 main contact closure.Certainly Alarm contactor 2 is not provided with also to can be achieved on
Electrical interlocks system with the control of early dynamic auxiliary.
The embodiment provided with reference to Fig. 3 to Fig. 9, further illustrate the early dynamic auxiliary low-voltage circuit breaker using the present invention
The course of work.
When the first early dynamic auxiliary low-voltage circuit breaker QF1 is in automatically jumping state, support 51 is made by the elastic force of spring 52
With in " high position " state, the driving section 51a and actuating arm 41a on the Rocker arm 41 of operating mechanism 4 on support 51 does not connect
Touch, the drive division 51b on support 51 contacts with the auxiliary push-rod 3a of auxiliary contact 3, and the contact A X of auxiliary contact 3 is in disjunction shape
State, simultaneously because the contact A L of Alarm contactor Alarm contactor 2 is also at disjunction state, the shunted exciter tripping being connected in control loop
Device coil C can not switch on power, and the second early dynamic auxiliary low-voltage circuit breaker QF2 is failure to actuate, state such as Fig. 4 and Fig. 7 of each action piece
It is shown.
Detained again or during gate-dividing state when the first early dynamic auxiliary low-voltage circuit breaker QF1 is in, elastic force of the support 51 by spring 52
Effect, in " high position " state, the driving section 51a and actuating arm 41a on the Rocker arm 41 of operating mechanism 4 on support 51 does not connect
Touch, the drive division 51b on support 51 contacts with the auxiliary push-rod 3a of auxiliary contact 3, and the contact A X of auxiliary contact 3 is in disjunction shape
State, the contact A X of auxiliary contact 3 are in disjunction state, and the contact A L of Alarm contactor 2 is being detained or sub-switching operation process transfer again
Closure is changed to, but because the contact A X of auxiliary contact 3 is still disjunction state, so being connected on the shunt release in control loop
Coil C can not still switch on power, and the second early dynamic auxiliary low-voltage circuit breaker QF2 will not still be acted, state such as Fig. 4 of each action piece and
Shown in Fig. 8.
When the first early dynamic auxiliary low-voltage circuit breaker QF1 starts to make closing operation, the Rocker arm 41 of operating mechanism 4 is therewith to conjunction
Lock direction is moved, while the actuating arm 41a on Rocker arm 41 promotes the driving section 51a on support 51 to rotate counterclockwise, and drives driving
Portion 51b is moved downward, and drive division 51b first drives the auxiliary push-rod 3a of auxiliary contact 3 to move in early dynamic stroke, makes auxiliary contact 3
Contact A X be converted to closure, the contact A L of Alarm contactor 2 still in closure state, point being then connected in control loop
The power supply for encouraging trip coil C is switched on, the second early dynamic auxiliary low-voltage circuit breaker QF2 actions, and then drive division 51b continues downward
Motion, and be kept completely separate in the auxiliary push-rod 3a in stroke with auxiliary contact 3 that is delayed, drive division 51b reaches " low level " state, the
Dynamic auxiliary low-voltage circuit breaker QF1 main contact is converted to closure early in the morning.Due to the first early dynamic auxiliary low-voltage circuit breaker QF1 auxiliary
The main contact that the contact A X of contact 3 is converted to the action dynamic auxiliary low-voltage circuit breaker QF1 early prior to first of closure is converted to closure
The delay time T that one delay process of action is undergone, so the second early dynamic auxiliary low-voltage circuit breaker QF2's is early prior to first dynamic
The time that auxiliary low pressure circuit breaker Q F1 main contact is converted to closed action is also delay time T.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (9)
1. a kind of early dynamic auxiliary low-voltage circuit breaker, including shell block (1), and auxiliary contact (3) on shell block (1), behaviour
Make mechanism (4) and main contact, it is characterised in that：
Described early dynamic auxiliary low-voltage circuit breaker also includes early dynamic device (5), and early dynamic device (5) includes to contact with operating mechanism (4)
The driving section (51a) of cooperation and the drive division (51b) being engaged with auxiliary contact (3), in the conjunction of described operating mechanism (4)
During lock action drives main contact is closure state by disjunction State Transferring, operating mechanism (4) while early dynamic device (5) is driven
Second stable state is transformed into by the first stable state；
The process that dynamic device (5) of described morning is transformed into the second stable state by the first stable state is first driven including early dynamic device (5)
The morning of auxiliary contact (3) change-over switch state moves process, and then early dynamic device (5) reaches the delay process of the second stable state again,
Operating mechanism (4) drives the drive division (51b) of early dynamic device (5) to act on auxiliary and touched by driving section (51a) during early dynamic
Make auxiliary contact (3) change-over switch state on head (3)；
Described morning, which moves device (5), includes support (51), spring (52), and support (51) is arranged on shell block (1) or behaviour by revolute pair
On the fixture for making mechanism (4), support (51) is provided with driving section (51a) and drive division (51b), and the elastic force of spring (52) can drive
Rotate support (51) and reach the first stable state, operating mechanism (4) can drive support (51) to rotate and reach the second stabilization
State.
2. early dynamic auxiliary low-voltage circuit breaker according to claim 1, it is characterised in that：Described operating mechanism (4) from
By trip action, pull work or separating brake action again early dynamic device (5) can be made to return to the first stable state or stably in the first stabilization
State, while main contact is converted to disjunction state or stably in disjunction state.
3. early dynamic auxiliary low-voltage circuit breaker according to claim 1, it is characterised in that：Described morning moves the rotation of device (5)
Pair includes rotary shaft (53) and the axis hole (51c) being arranged on support (51), and rotary shaft (53) is arranged on shell block (1) or operation machine
On the fixture of structure (4), the axis hole (51c) on support (51) is sleeved in rotary shaft (53)；Described support (51) one end is provided with
Axis hole (51c), the other end are provided with the drive division (51b) being correspondingly arranged with the auxiliary push-rod (3a) of auxiliary contact (3), support (51)
Middle part is provided with the driving section being correspondingly arranged with the actuating arm (41a) on the rocking arm (41) of operating mechanism (4) to side extension
(51a)；The spring (52) is torsion spring, and it is sleeved in rotary shaft (53), and its one end couples with support (51), the other end and shell
Seat (1) connection.
4. early dynamic auxiliary low-voltage circuit breaker according to claim 1, it is characterised in that：Early dynamic device (5) is in the first stabilization
The drive division (51b) that device (5) is early moved during state contacts with auxiliary contact (3), and early dynamic device (5) early moves when being in the second stable state
The drive division (51b) of device (5) separates with auxiliary contact (3)；Drive division (51b) is with auxiliary contact (3) by touching auxiliary contact
(3) process of change-over switch state moves process for the morning of early dynamic device (5), steady to second by auxiliary contact (3) change-over switch state
The process for determining state is delay process.
5. early dynamic auxiliary low-voltage circuit breaker according to claim 1, it is characterised in that：It is in and closes a floodgate in operating mechanism (4)
The actuating arm (41a) of operating mechanism (4) is contacted with driving section (51a) during state, and automatically jumping, again is in operating mechanism (4)
Actuating arm (41a) separates with driving section (51a) when button or gate-dividing state.
6. early dynamic auxiliary low-voltage circuit breaker according to claim 1, it is characterised in that：Described early dynamic auxiliary low pressure open circuit
Device includes multiple auxiliary contacts, and operating mechanism (4) can be by early moving device (5) while driving the on off state of multiple auxiliary contacts
Conversion.
7. early dynamic auxiliary low-voltage circuit breaker according to claim 1, it is characterised in that：Also include being arranged on shell block (1)
Alarm contactor (2), the rocking arm (41) of described Alarm contactor (2) and operating mechanism (4) coordinates；Performed in operating mechanism (4)
The contact A L of automatically jumping action alarm contact (2) is converted to disjunction state；Detained again in operating mechanism (4) execution or separating brake moves
The contact A L for making alarm contact (2) is converted to closure state；Feed motion alarm contact (2) is performed in operating mechanism (4)
Contact A L be maintained at closure state.
A kind of 8. electrical interlocks system, it is characterised in that：
Including the early dynamic auxiliary low-voltage circuit breaker two as described in claim 1-7 is any, described two early dynamic auxiliary low pressure are broken
Road device is the first early dynamic auxiliary low-voltage circuit breaker (QF1) and the second early dynamic auxiliary low-voltage circuit breaker (QF2)；Described first is early dynamic
The contact A X of the auxiliary contact (3) of auxiliary low pressure breaker (QF1) and the shunt opening of the second early dynamic auxiliary low-voltage circuit breaker (QF2) take off
Detain device (C) coupled in series；The contact A X and first of the auxiliary contact (3) of the second described early dynamic auxiliary low-voltage circuit breaker (QF2)
Shunt release (C) coupled in series of early dynamic auxiliary low-voltage circuit breaker (QF1).
A kind of 9. electrical interlocks system, it is characterised in that：
Including two early dynamic auxiliary low-voltage circuit breakers as claimed in claim 7, described two early dynamic auxiliary low-voltage circuit breakers are
First early dynamic auxiliary low-voltage circuit breaker (QF1) and the second early dynamic auxiliary low-voltage circuit breaker (QF2)；
The contact A L of Alarm contactor (2) of the first described early dynamic auxiliary low-voltage circuit breaker (QF1) and the contact of auxiliary contact (3)
Shunt release (C) coupled in series of the early dynamic auxiliary low-voltage circuit breakers (QF2) of AX and second；
The contact A L of Alarm contactor (2) of the second described early dynamic auxiliary low-voltage circuit breaker (QF2) and the contact of auxiliary contact (3)
Shunt release (C) coupled in series of the early dynamic auxiliary low-voltage circuit breakers (QF1) of AX and first.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510359325.3A CN104916505B (en) | 2015-06-25 | 2015-06-25 | Early dynamic auxiliary low-voltage circuit breaker and electrical interlocks system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510359325.3A CN104916505B (en) | 2015-06-25 | 2015-06-25 | Early dynamic auxiliary low-voltage circuit breaker and electrical interlocks system |
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| CN104916505A CN104916505A (en) | 2015-09-16 |
| CN104916505B true CN104916505B (en) | 2018-03-02 |
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| CN201510359325.3A Active CN104916505B (en) | 2015-06-25 | 2015-06-25 | Early dynamic auxiliary low-voltage circuit breaker and electrical interlocks system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106783425B (en) * | 2016-12-13 | 2019-01-25 | 滁州学院 | The tripping mechanism of selective miniature circuit breaker |
| CN109087823A (en) * | 2018-10-18 | 2018-12-25 | 广州白云电器设备股份有限公司 | The device and switchgear of antiground switch indication light Pre-handoff |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4317656A1 (en) * | 1992-06-25 | 1994-01-05 | Klinger & Born Gmbh | Switching relay with auxiliary contacts - has pushbutton actuators for on and off state with auxiliary contact operation preceding main relay operation. |
| CN1258374A (en) * | 1998-03-21 | 2000-06-28 | 金钟-默勒有限公司 | Rotation-activated circuit-breaker with leading auxiliary switch |
| CN1281583A (en) * | 1997-12-05 | 2001-01-24 | 西门子公司 | Switchgear unit with leading auxiliary switch |
| CN100490045C (en) * | 2004-04-15 | 2009-05-20 | 默勒有限公司 | Leading auxiliary switch for protection switch |
| CN204792642U (en) * | 2015-06-25 | 2015-11-18 | 上海诺雅克电气有限公司 | Early move supplementary low -voltage circuit breaker and electrical interlocks system |
-
2015
- 2015-06-25 CN CN201510359325.3A patent/CN104916505B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4317656A1 (en) * | 1992-06-25 | 1994-01-05 | Klinger & Born Gmbh | Switching relay with auxiliary contacts - has pushbutton actuators for on and off state with auxiliary contact operation preceding main relay operation. |
| CN1281583A (en) * | 1997-12-05 | 2001-01-24 | 西门子公司 | Switchgear unit with leading auxiliary switch |
| CN1258374A (en) * | 1998-03-21 | 2000-06-28 | 金钟-默勒有限公司 | Rotation-activated circuit-breaker with leading auxiliary switch |
| CN100490045C (en) * | 2004-04-15 | 2009-05-20 | 默勒有限公司 | Leading auxiliary switch for protection switch |
| CN204792642U (en) * | 2015-06-25 | 2015-11-18 | 上海诺雅克电气有限公司 | Early move supplementary low -voltage circuit breaker and electrical interlocks system |
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| CN104916505A (en) | 2015-09-16 |
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Application publication date: 20150916 Assignee: ZHEJIANG CHINT ELECTRICS Co.,Ltd. Assignor: SHANGHAI NOARK ELECTRIC Co.,Ltd. Contract record no.: X2021330000593 Denomination of invention: Early acting auxiliary low voltage circuit breaker and electrical interlocking system Granted publication date: 20180302 License type: Common License Record date: 20211025 |