CN103367056B - Middle Piezoelectric switches unit control device and the switch element that controlled by this device - Google Patents

Middle Piezoelectric switches unit control device and the switch element that controlled by this device Download PDF

Info

Publication number
CN103367056B
CN103367056B CN201310122361.9A CN201310122361A CN103367056B CN 103367056 B CN103367056 B CN 103367056B CN 201310122361 A CN201310122361 A CN 201310122361A CN 103367056 B CN103367056 B CN 103367056B
Authority
CN
China
Prior art keywords
control
opening
close
crank
aforementioned
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201310122361.9A
Other languages
Chinese (zh)
Other versions
CN103367056A (en
Inventor
Y.贝林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric SE
Original Assignee
Schneider Electric SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FR12/01055 priority Critical
Priority to FR1201055A priority patent/FR2989216B1/en
Application filed by Schneider Electric SE filed Critical Schneider Electric SE
Publication of CN103367056A publication Critical patent/CN103367056A/en
Application granted granted Critical
Publication of CN103367056B publication Critical patent/CN103367056B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/22Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003Earthing switches
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02Details
    • H01H31/04Interlocking mechanisms
    • H01H31/10Interlocking mechanisms for interlocking two or more switches
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02Details
    • H01H33/42Driving mechanisms
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/666Operating arrangements
    • H01H33/6661Combination with other type of switch, e.g. for load break switches
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/22Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H2003/3057Power arrangements internal to the switch for operating the driving mechanism using spring motor provisions for avoiding idling, e.g. preventing release of stored energy when a breaker is closed, or when the springs are not fully charged
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/22Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H2003/3089Devices for manual releasing of locked charged spring motor; Devices for remote releasing
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/22Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3005Charging means
    • H01H3/3015Charging means using cam devices
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02Details
    • H01H31/04Interlocking mechanisms
    • H01H31/08Interlocking mechanisms for interlocking two or more parts of the mechanism for operating contacts
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/666Operating arrangements
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/50Manual reset mechanisms which may be also used for manual release
    • H01H71/58Manual reset mechanisms which may be also used for manual release actuated by push-button, pull-knob, or slide
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20Interlocking, locking, or latching mechanisms
    • H01H9/24Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20Interlocking, locking, or latching mechanisms
    • H01H9/26Interlocking, locking, or latching mechanisms for interlocking two or more switches
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20Interlocking, locking, or latching mechanisms
    • H01H9/28Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member

Abstract

The present invention relates to the control device for middle piezoelectricity protection switchgear; including electric switch unit; described electric switch unit includes can be via mechanical connection; control command being respectively transmitted at least one of at least one contact opening feature (15) and at least one contact closure parts (12) and opens actuation component (7) and at least one Guan Bi actuation component, described device also includes for interrupting the device that aforementioned mechanical connects.The design of described control device is simple, it is possible to be placed on the front of switchgear and be arranged so that the variation of local manual control knob type.

Description

Middle Piezoelectric switches unit control device and the switch element that controlled by this device
Technical field
The present invention relates to a kind of control device for middle piezoelectricity protection switchgear, medium pressure electric protection Switchgear is placed between two parts of circuit thus the electric current flowing of allowing between these parts Or interrupting cutout, described switchgear includes can presenting for the make position of electric current flowing with for electricity The electric switch unit of open position that stream interrupts, described switch element includes opening for unit contact At least one actuation component and at least one actuation component of Guan Bi for contact, described in be respectively used to beat Control command can be respectively transmitted to being used for contact by the actuation component that open and close are closed via being mechanically connected At least one opening feature and at least one closing feature, described control device also includes for interrupting aforementioned The device being mechanically connected, thus when not sending close commands in order to ensure personnel or installation safety Situation time, any startup making any Guan Bi actuation component is the most invalid, described aforementioned Guan Bi and open portion Part is rotatably mounted around two axis being largely parallel to each other, and the Guan Bi of contact and/or open is led to respectively Cross to open actuation component rotation driving opening feature or close actuation component and rotate driving closing feature in fact Existing.
Background technology
It is known that be equipped with breaker mechanism and be set to the operation of these mechanisms and realize various protection merit Can mechanical interlocks, if if such as having been given by staying open order or device has been closed Guan Bi is prevented during situation.
But, these devices are integrated in the internal mechanism of device and their design is complicated.
It addition, these devices cannot be placed on front and be not configured to so that local manual control Type of button variation.
Summary of the invention
Subject of the present invention is a kind of control device for switchgear, the design letter of described control device Single, it is possible to be placed on the front of switchgear and be arranged so that local manual control knob type is many Sample.
To this end, subject of the present invention is the control that a kind of middle piezoelectricity for aforesaid kind protects switchgear Device, this device characteristic is that aforementioned Guan Bi and opening feature are substantially respectively for closing actuation component and beating Open actuation component location, and aforementioned mechanical connection includes being anchored on the part of closing feature, described part Including the retractable element that can move between the first position and the second position, can described in primary importance Retraction element can coordinate with the actuation mean of described closing feature thus close commands is sent to Guan Bi Parts, in the second position, described element is retracted and is no longer able to the described element with described closing feature Coordinating, the displacement from expanded position to retracted position of the described element is by the closure state of contact or for contact The order that stays open control, or by for close to being used for controlling the control lever shaft of switch element contact The startup of locking device controls.
Therefore, by these features, it is possible to use the pressing of the actuation mean including translatable movement The button of operation, or rotating handles, it includes that the actuation mean of rotatable movement is with for cunning in rotary moving Move component or open actuation component.
According to special characteristic, described switchgear comprises additionally in the ground connection dress connected with described switch element Putting, this control device is characterised by that it comprises additionally in by may move between the first position and the second position The interlock that controls of selector, for close to being used for controlling the manipulation of switch element in primary importance The opening of axle is released and for being closed close to the opening of the axle handling grounding shaft, the second position corresponds to Ground connection purpose or actual ground connection, for being released close to the opening of the axle handling grounding shaft in the second position And for being closed close to the opening handling the axle controlling arrangement;And described retractable element is front The displacement stated between two positions by the crank control of aforementioned interlock thus prevents when selector is front Foregoing units Guan Bi when stating in the second position.
These features provide the circuit breaker for combination with the interlocking demand relevant with ground connection cutter Device or the demand of switching manipulation.
According to another feature, aforementioned mechanical connects and includes forming the sliding component support being anchored on closing feature Part, and there is sliding component wherein that assemble slidably, described sliding component is formed aforementioned Retractable element.
According to another feature, this sliding component or handled by the indicator of contact position, or via song Handle device, by be anchored on opening feature formed crank part handle.
According to another feature, when interlock is positioned at the aforementioned second position, this sliding component additionally or Person is handled by the crank of aforementioned interlock, or by for close to being used for controlling the control lever shaft of switch element Locking device handle, described control lever shaft control aforementioned interlock crank.
According to another feature, aforementioned interlock includes the first blocking lever, the second blocking lever and selector, Described first blocking lever rotatably assembles around the control axle for switch element, and include can To be used for the cover plate close to closure of openings or release for controlling the control lever shaft of switch element, described second Blocking lever assembles rotatably around the fixed axis supported and includes to discharge or closing for close The cover plate of the opening of grounding shaft, described blocking lever is mechanically connected by connecting rod, described selector have through Its pin, belongs to the first bar, and described selector is slidably fitted within about the fixing support of switchgear Between two aforementioned location, described first blocking lever includes aforementioned crank.
According to another feature, aforementioned interlock includes being used for when this unit is in the close position close Handle the device of the closure of openings of the axle of grounding shaft.
According to another feature, these devices include being anchored on the contact that is fastened on for controlling switch element On axle and form the pin of part of position indicator of aforementioned contact, described pin and aforementioned first interlocking Bar coordinates.
According to another feature, these crank devices include the first crank and the second crank, described first crank Being referred to as indicator crank, it assembles pivotly about the axis of the fixing support belonging to switchgear, the One crank includes Part I, described Part I and the control axle being fastened to the contact for switch element And the part forming aforementioned indicator coordinates, described second crank is referred to as sliding component crank, and it is around opening The second fixed axis that pass equipment supports pivotably assembles, and described second crank includes for via being positioned at State on the second crank two and sell the Part I coordinated with the Part II of the first crank, and be used for and beat Open the Part II that the crank of parts coordinates.
According to another feature, these aforementioned locking devices include can be by key operated and can rotate and drive The lock of moving cam, described cam can coordinate with the crank of aforementioned interlock, so that this device is in For closing or discharging the position for the opening close to the control lever shaft controlling switch element.
According to another feature, one or each open or closing feature is fastened respectively to second and opens or close Axle, described second shaft mechanical is connected to the axle for controlling switch element, each opens or closing feature divides Not by open or Guan Bi brake unit and be maintained at and correspond respectively to the Guan Bi of unit contact or open position The position put, this braking (catch) device can be unlocked by actuating of corresponding component.
According to another feature, aforementioned sliding component includes two openings separated by dividing plate, one of them Opening is for receiving the end of closing feature, and described overhang bracket is on dividing plate, and spring is by it wherein One end bearing, in the plane belonging to aforesaid end, is bearing in sliding component by its opposing end portions Inner surface on, described sliding component also includes pin, described in lock be fixed in described sliding component and for Coordinate with sliding component crank so that described sliding component is driven to another location from a position.
According to special feature, this device include at least one manual operation open button and at least one The close push button of manual operation, upon being activated, the actuation mean of each button can be joined with sliding component Close thus rotate and drive it.
According to another feature, described or each manual operation open button and described or each manual behaviour The close push button made is positioned on the front of switchgear, thus user can operate from this face.
According to another feature, one or each manual operation open or closing feature is to include translatable shifting The button of the pressing operation of dynamic actuation mean, is for opening or close in rotary moving beating according to button Open parts or sliding component.
According to another embodiment, one or each manual operation open or closing feature be include rotatable Whether the rotating handles of the actuation mean of movement, be used for opening or close in rotary moving opening according to handle Parts or sliding component.
Particularly implementing according to another, this device includes for realization opens or closes in a direction or another The single rotating handles of rotatable movement on one direction, described handle is included in two contrary direction of rotation Go up two actuation means of rotatable movement, and it can be joined with opening feature or sliding component respectively Close.
According to another feature, this device includes at least one remote actuation coil, the actuation mean warp of coil Being coordinated with sliding component from supporting, described coil includes installing with around the rotatable leaf of closing feature Sheet, described support includes the part that the part with sliding component coordinates, so, via blade actuator coil Drive the rotation supported with sliding component thus drive the rotation of closing feature.
According to another feature, switch element is vacuum circuit breaker or vacuum interrupter and grounding device It it is ground connection cutter.
The present invention also relates to piezoelectricity protection switchgear in one, described switchgear includes can controlling to touch The opening feature opened and close of head and closing feature, this switchgear is characterised by that it includes controlling dress Putting, described control device includes alone or in combination preceding feature.
The present invention relates to piezoelectric unit in one, medium pressure electric unit includes at least one switchgear, At least one switchgear described includes alone or in combination preceding feature.
Accompanying drawing explanation
By the preferred implementation be given with non-limiting example described in reading accompanying drawing, further feature Will be apparent from advantage, wherein:
-Fig. 1 is the inside portion of the parts controlling arrangement representing the middle piezoelectric unit according to the present invention Divide plan view.
-Fig. 2 is the system opened or close more properly representing circuit-breaker or switch for unit The detailed view of the amplification of dynamic brakes.
-Fig. 3 is the partial view representing the brake unit being referred to as opening brake unit.
-Fig. 4 is the partial view representing the brake unit being referred to as Guan Bi brake unit.
-Fig. 5 is to represent the sliding component system according to the present invention and the blade of coil, and it is arranged on Guan Bi On first quarter moon part, in the withdrawn position of sliding component, partial view.
-Fig. 6 is the retracted position at sliding component, is similar to regarding of aforesaid figures according to other direction Figure.
-Fig. 7 is analogous to the view of Fig. 6, does not has sliding component to support.
-Fig. 8 is the decomposition view of Fig. 5 or 6.
-Fig. 9 be represent that close push button is operated before, be in the open position that will be closed, from phase Fragmentary, perspective view for the circuit-breaker that the rear of Fig. 3 and 4 is observed.
-Figure 10 is the plan view of the Fig. 9 after button support is removed.
-Figure 11 is in the close position at circuit-breaker, is similar to the view of Fig. 9.
-Figure 12 is the plan view of Figure 11 and includes profile, thus represents do not have button support Equipment.
-Figure 13 represents that use interlock prevents equipment ground.
-Figure 14 is to represent opening the partial plan view of circuit-breaker during button stays open.
-Figure 15 is analogous to the view of Figure 14, but including representing is staying open by opening coil During order, the cross section view of circuit-breaker part.
-Figure 16 is the local representing the interlock between circuit-breaker control lever shaft and ground connection control lever shaft Perspective view.
-Figure 16 a and 16b is the partial perspective view representing the crank device according to the present invention.
-Figure 17 is that indication circuit chopper will make position, selector put down in the local of earthing position Face view.
-Figure 18 is analogous to the view of Figure 17, and grounding shaft is driven.
-Figure 19 is expressed as preventing from controlling axle, the partial perspective of interlocking lock operation close to circuit-breaker View.
Figure 20,21 and 22 is to represent three possible embodiment party for actuating the button closing and opening The partial perspective view of formula.
Detailed description of the invention
Fig. 1 represents the medium-voltage distribution unit C between two parts for being placed on circuit thus difference Provide at electric current flowing function between these portions, current interruptions merit between these portions The grounding function of one of them of these parts of energy, circuit break function and circuit, applicant's Patent application FR2940516 describes such unit.This unit C includes preferably having vacuum The circuit-breaker (or switch) of relay (interrupter) technology such as Dewar bottle relay, described Circuit-breaker also performs cutter (disconnector) function and connects with described circuit-breaker, Grounding device includes the selector S with at least two position, be respectively for electric current flowing position and For the position of one of them ground connection of these parts of circuit, described circuit-breaker (switch) upstream Being electrically connected to such as bus, and downstream electrical is connected to aforesaid selector S, this selector downstream electrical connects In for example, at least cable, described unit can use three positions, respectively make position, disconnection Position and earthing position.
In FIG, this unit C includes the control lever shaft 1 for control circuit chopper, this operation axle 1 It is mechanically connected to for the control lever shaft 2 of vacuum interrupter contacts and can be manually manipulated via stick Thus via the opening arranged in the shell of switchgear, according to the use of unit, perform described relay The manual unlocking of contact or Guan Bi or the replacement after opening.
This grounding device includes for by the axle 3 of the contact ground connection of circuit-breaker be used for handling this axle Axle 4.
During electric fault occurring on shielded circuit, open relay contact situation it Outward, the contact of relay or can be respectively used to open 7 or close by opening button 5 and close push button 6 The coil 7,8 of 8 is opened or is closed and can be by remote actuation.
The contact of vacuum interrupter is respectively by being referred to as the brake unit of Guan Bi brake unit 9 and being claimed The brake unit opening brake unit 10 is maintained at open position or make position.
Guan Bi brake unit 9, is opening or make position, it is possible to keep for interrupter contacts Guan Bi Energy, described Guan Bi brake unit includes that hook 11, described hook 11 are bearing in and is referred to as closing first quarter moon part Promptly position on semilune closing feature 12, this first quarter moon part is anchored on axle 13 and by this axle around list The rotatable movement of fixed axis of unit, this first quarter moon part and its shaft mechanical being associated are connected to close mechanism Control axle 1, thus the Guan Bi on Guan Bi first quarter moon part 12 brakes the unblock release shaft 1 of 9, described axle 1 Along the closing direction of contact, it is rotatably driven the control lever shaft 2 for relay.
Similarly, open brake unit 10 and the contact of relay can be maintained at make position, described Open the hook 14 that brake unit 10 includes coordinating with the opening feature 15 being referred to as opening first quarter moon part, should be partly Month part is also fastened to axle (not shown) and by this axle around the rotatable movement of fixed axis of unit, should First quarter moon part 15 and its shaft mechanical being associated are connected to the control axle 2 for relay movable contact, from And the direction that the unblock opening braking 10 on first quarter moon part 15 is opened along contact, it is rotatably driven use Control lever shaft 2 in relay.
Open button 5 or close push button 6 by operation or open coil 7 or the two of closing coil 8 One of person so that these brakings 9,10 is inoperative, and its actuation mean 17,18,19,20 can Act on corresponding first quarter moon part, or directly until relating to opening braking 10, or via machinery even Meet L until relating to closing braking 9, thus via with opening of being associated of aforementioned first quarter moon part 15,12 or Closing spring makes corresponding braking inoperative and therefore drives opening of relay movable contact Or Guan Bi.
As for individually Guan Bi brake unit 9, unit C also includes being referred to as closing energy springs 23 The spring that can coordinate with Guan Bi brake unit 9, so that increase when Guan Bi brake unit 9 is unlocked Add the closure speed of interrupter contacts, when braking is unlocked when.
Fig. 5 to this mechanical connection L as shown in 8 includes that sliding component supports 24, sliding component 25 Be slidably mounted in sliding component to support in 24, described support and sliding component have through they Guan Bi first quarter moon part 12, described Guan Bi first quarter moon part supports 24 by its free end 26 is inserted sliding component Slit in and fixed, described sliding component support 24 include having for this end run corresponding The opening of shape.
This sliding component 25 include opening 27,28(Fig. 7 of two elongations of separating by dividing plate 29 and 8), opening 27, one of them of 28 28 makes the end 26 of aforementioned first quarter moon part 12 through it and for holding Receive and be placed on the plane 31 belonging to this end and the inner surface 33 towards described plane belonging to sliding component Between spring 30, and the face 32 of this first quarter moon part end 26 bear against aforementioned sliding component 25 every Plate 29, described face 32 is relative with the face including plane 31.
As shown in Figure 5, it is retracted to expanded position by this sliding component 25 of aforementioned spring 30, as Shown in Fig. 6, sliding component 25 towards its retracted position be displaced through actuating of actuating element 34 and Being implemented, described actuating element 34, for sliding component 25, is formed and crank device as will be discussed later The pin that part R coordinates.
These Fig. 5 to 8 also illustrate that the axle around first quarter moon part assembles and freely can turn around the axis of first quarter moon part Dynamic part, this part is the blade 35 of closing coil 8.
This blade 35 includes the ledge that can coordinate with the ledge 37 belonging to sliding component 25 36, these two parts substantially upwardly extend so that work as sliding component in the side of the axis being parallel to first quarter moon part When being in the deployed, described blade 35 can be rotatably driven first quarter moon part in the period of actuating of coil 8 12, otherwise, when sliding component 25 is contracted, actuating on sliding component 25 not impact also of coil And therefore on first quarter moon part 12 not impact.
Around the axle 2 of the contact of the vacuum interrupter for drive circuit chopper, it is equipped with rigid element, It is fastened to described axle, is referred to as position indicator 38.This indicator be referred to as the of toggle-action lever 39 One of them 41 cooperation of the end 41,42 of one end, described toggle-action lever 39 is referred to as indicator crank, As shown in fig. 16 a and 16b, described indicator crank is pivotable around the fixed axis of the support of switchgear Ground is installed.The second toggle-action lever 40 being referred to as sliding component crank can pivot also around the second axis supported Turning ground assembling, described sliding component crank includes coordinating for the second end 42 with indicator crank 39 Part I 43, and for the Part II 44 that coordinates with sliding component 25, with after a while by explanation Form coordinate.
Figure 16 a and 16b represents on one or other direction, and the first bar 39 can be via two pins 54,55 Drive after the second bar 40, said two pin 54,55 be positioned on the Part I 43 of the second bar 40 On, the Part I 43 of described second bar 40 coordinates with the Part II 42 of the first bar 39.
Noted above, this unit C also includes the earthed switch connected with aforementioned circuit breakers, Described switch includes the axle 4 for handling grounding shaft 3, and described grounding shaft 3 is selecting the rush of selector S After Dong, can be manipulated by by means of bar by the opening arranged for this reason.This selector S actuates Have and will be used for the effect discharging close to the opening of described grounding shaft 3 or closing, described bar by bar 51 51 are referred to as the second blocking lever and include closing cover plate 53.
As shown more particularly in Figure 16, circuit-breaker and earthed switch are by interlock I machinery Connect and be set to when circuit-breaker is in the close position prevent from actuating selector S for by single Unit's ground connection, and be set to when selector S is in earthing position prevent from controlling axle close to circuit-breaker 1, for guiding the opening of the stick of grounding shaft 3 to be released, and it is set to during ground connection purpose The Guan Bi of circuit-breaker, described selector is prevented to be in earthing position.
To this end, attachment means I includes around the first blocking lever 45 that control lever shaft 2 is pivotally-mounted, described behaviour The longitudinal axis 2 is for the interrupter contacts of circuit-breaker, and described bar 45 includes the first arm 46, this arm Including can the cover plate 47 of closed circuit circuit breaker manipulation opening, described first bar 45 is with articulated form warp Be connected to one of them end of connecting rod 49 by the second arm 48, the other end of this connecting rod is with hinged shape Formula is connected to be referred to as one of them end of the arm of the first arm 50, and this first arm 50 belongs to Two blocking levers 51, the second blocking lever 51 pivotably coordinates around the fixed axis of unit and includes the second arm Portion 52, the free end of described second arm 52 includes for closing for the opening close to grounding shaft 3 Cover plate 53.
Pivot axis between connecting rod 49 and the second blocking lever 51 is extended by pin 56, and described pin is used for quilt Leading in the elongate slot 57 of selector S, described selector S is about the position at Granting earth With the fixing support of the unit forbidden between the position of ground connection is slidably mounted, described selector S this two Can be driven by means of control member 58 on its exterior between individual position.
This interlock I also includes locking 59, and described lock 59 includes to join with the part forming crank 61 The cam 60 closed, described crank 61 is anchored on aforementioned first blocking lever 45, and described lock 59 can be by institute Stating bar 45 to drive to for closing in the position handling opening, described manipulation opening is for for controlling electricity The control lever shaft 1 of road short-circuiting device.
This part forming crank 61 also coordinates with the pin 62 being anchored on sliding component crank 40, thus When selector enters earthing position and is used for the close closure of openings controlling axle 1, by sliding component 25 Drive to the retracted position in support.
This interlock I also includes being anchored on aforementioned location indicator 38 and can be with the first blocking lever 45 coordinate pins 63 so that prevent when circuit-breaker is in the close position selector S towards Earthing position is handled.
The operation of the unit according to the present invention is described below in conjunction with accompanying drawing.
In fig .9, circuit-breaker is in the open position that will close, and a certain amount of cumlative energy stores up Exist in the closing spring of the axis of first quarter moon part 12.In this position, it is positioned in sliding component 25 Spring 30 sliding component is retracted to expanded position, described sliding component on this expanded position 25 position towards the actuation mean 18 of close push button 6 it is thus possible to when close push button will be operated with close Close snap fit.
Similarly, in Fig. 10, the blade 35 of coil 8 is positioned at position as shown in Figure 5, wherein It is ready for driving Guan Bi first quarter moon part 12 when coil is actuated.In the two figure, for close to circuit breaker Device control axle 1 opening be released and for being closed close to the opening of grounding shaft 3.When close push button 6 Or closing coil 8 is arbitrary when being actuated, the actuation mean 18,20 of this element rotates and drives sliding component 25, or the most directly drive, or drive via blade 35 in the case of coil, And therefore rotate and drive Guan Bi first quarter moon part 12, so that Guan Bi is braked 9 unblocks and therefore makes in vacuum The contact closure of disconnected device, described position such as Figure 11, shown in 12 and 13.
When unit C changes to make position from open position, the relay being proved to be counterclockwise is handled The rotation of axle 2, is rotated activation point indicator 38, is driven clockwise by the motion of this position indicator First toggle-action lever 39 and drive the second toggle-action lever 40 counterclockwise, thus there is driving sliding component 25 Until the effect of its retracted position, described position such as Figure 11, shown in 12 and 13.
On this position, owing to sliding component 25 is contracted, the therefore new element on close push button 6 Or sliding component 25 is not affected by newly actuating of closing coil 8.On the other hand, by stopping first Blocking lever 45 is against the pin 63 being present on position indicator 38, and selector S is towards Granting earth axle 3 The displacement of the position handled is prevented from.
On this position, for cumlative energy in controlling arrangement, close to being used for controlling arrangement Control lever shaft 1 permitted, and be prevented from close to grounding shaft 3.
From such as Figure 11, the make position shown in 12 and 13 and after not staying open order, open Button 5 or open coil 7 actuation mean 17 drive open braking 10 unblock, then, opening Action on the crank 15a of first quarter moon part 15, it has the result driving counterclockwise sliding component crank 40, Sliding component 25 being driven to retracted position, then, not being kept if opening order, then be sliding Dynamic component is retracted to the most closeable expanded position by spring 30.
But, when as shown in figure 14 by opening button 5 and staying open order, or such as Figure 15 institute When showing by opening coil 7 and staying open order, the sliding component 25 semilune crank 15a that is opened drives Dynamic sliding component crank 40 is maintained at its retracted position, thus prevents any closed action.
In fig. 17, circuit-breaker be in will make position, a certain amount of energy has been closed Spring 23 accumulation is for the Guan Bi of interrupter contacts.Selector S is towards indicating the unit of unit ground connection The right side of C is moved.On the one hand this displacement has driven the displacement clockwise of the first blocking lever 45, and described the One blocking lever 45 drives the closing of the opening of the stick 1 for guiding control circuit chopper, another Aspect has driven the displacement counterclockwise of the second blocking lever 51 thus has discharged for the opening close to grounding shaft 3. First blocking lever 45 has handled sliding component crank 40 so that sliding component 25 and close push button 6 Or the connection between closing coil 8 becomes impossible.
In figure 18, circuit-breaker be in will make position, Guan Bi energy have built up in Guan Bi In spring.Ground connection is effective, has been driven in rotation for controlling the axle 3 of ground connection.At the second interlocking The closing of bar 51 arrange on cover plate 53 retainer 53a with keep the position of grounding shaft 3 and prevent its The direction that the rear steering of ground connection is contrary.
In Figure 19, for stopping that the lock 59 close to the axle 1 for handling control arrangement is made With.Thus by means of key, the cam 60 of lock 59 is driven 90 degree counterclockwise, so make first The crank 61 of locking bar 45 is driven clockwise, thus on the one hand stops close to the manipulation for controlling axle 1 Opening, on the other hand drives selector S to ground connection purpose position, and keeps this blocking lever The position of 45,51 is until key operates in the opposite direction.It is to be noted that the key for operating lock 59 Spoon only just can remove from lock after 90 degree of complete rotations.
Figure 20,21 and 22 represent can be used to open three kinds of button 5 and close push button 6 possible Embodiment.
Figure 20 represents for actuating two rotating handleses 64,65 opened and close respectively.The two handle Two different rotary directions are operated, such as the counter clockwise direction opened and suitable for Guan Bi Clockwise.
The rotary motion of each handle is transformed into the rotary motion of actuation mean 66,67.
In figure 21, only one of which handle 68 is used to carry out opening, when the latter is driven counterclockwise The when of dynamic, and described handle performs Guan Bi when the latter is driven clockwise.In this case, handle Rotary motion be transformed into the rotary motion of two corresponding actuation means 69,70, thus wherein it One situation time can drive open first quarter moon part displacement or wherein another situation time drive and slide The displacement of component.
In fig. 22, two buttons are the buttons 71,72 of pressing operation, the behaviour of one or the other button Make to drive the displacement of two different actuation means 73,74 respectively and be moved horizontally thus mobile first quarter moon part Crank and sliding component.
So, according to the present invention, a kind of interlock has been suggested, and this interlock can be advantageously It is used in only to include in the middle piezoelectric unit of circuit-breaker or switch or be used in and includes and ground connection is cut off In the switch of device series connection or the unit of circuit-breaker.
In the first case, be closed such as fruit product or stay open order by open by In the case of button or coil send, it is set to forbid sending close commands according to assembly of the invention.
In the second situation, except situation mentioned above, it is additionally operable to when manipulation selects selector to be in During earthing position, it is ground connection if controlling device or is pinned by key controlling the close of axle In the case of, it is set to forbid sending close commands according to assembly of the invention.
Advantageously, this device is placed on front and is configured such that the button class that local manual controls Type variation.
Use the program, the interlock needed for correct operation circuit-breaker or switch can with Interlock coupling needed for combinational circuit chopper or switch and ground connection cutter, thus produce and have The single interlock of extremely simple design.
This device provides and is used for being transformed to ground connection, arranges in the control for Guan Bi even if energy has built up In structure;This performs closed action after avoiding opening action.
Key operated fastening system drives handles sliding component crank and the first blocking lever of sliding component. This key operated fastening system forbids closed action, even if Guan Bi energy has built up at circuit-breaker In.
It is set to use different types of control button, described control button to include according to assembly of the invention Can be translated the actuation mean of movement, thus actuate semilune crank or for close commands for opening order Actuate sliding component.
Certainly, the present invention is not limited to the embodiment being merely given as examples describing and representing.
But, the present invention includes technically equivalent ones and the combinations thereof of be described means, as long as The latter is that the spirit according to it produces.

Claims (20)

1. for a control device for middle piezoelectricity protection switchgear, medium pressure electric protective circuit breaker equipment It is placed between two parts of circuit thus allows electric current flowing between these portions or electric current Interrupting, described switchgear includes can presenting for the make position of electric current flowing with for current interruptions The electric switch unit of open position, described switch element includes open at least for unit contact Individual actuation component and at least one actuation component of Guan Bi for contact, be respectively used to open and close Described actuation component can be respectively used at least the one of contact via being mechanically connected to send control command to Individual opening feature and at least one closing feature, described control device also includes for interrupting aforementioned mechanical even The device connect, thus in order to ensure personnel or installation safety, it is impossible in the case of sending close commands, Any startup making any Guan Bi actuation component is the most invalid, and described aforementioned Guan Bi and opening feature are around greatly Two axis parallel to each other in cause are rotatably mounted, the Guan Bi of contact and/or open respectively by opening Actuation component rotates and drives opening feature or Guan Bi actuation component rotation to drive closing feature to realize, aforementioned Closing feature (12) and opening feature (15) respectively for Guan Bi actuation component (18,20) and open rush Dynamic component (17,19) positions, and aforementioned mechanical connects the portion that (L) includes being fixed on closing feature (12) Dividing (24), described part (24) includes between the first position and the second position movably regracting Element, in primary importance, described retractable element can be with the actuation mean of described closing feature (12) (18,20) coordinate thus close commands are sent to closing feature (12), can described in the second position Retraction element regracting and be no longer able to the actuation mean (18,20) with described closing feature (12) and join Closing, described switchgear comprises additionally in the grounding device connected with described switch element, it is characterised in that: The described element displacement from expanded position to the retracted position closure state by contact or the guarantor for contact Hold and open order or for close to for controlling the locking device of the control lever shaft (1) of switch element contact (59,60,61) startup controls;And it also includes by can between the 3rd position and the 4th position The interlock (I) that the selector (S) of movement controls, for close to for controlling on the 3rd position The opening of the control lever shaft (1) of switch element be released and for close to handle grounding shaft (3) axle (4) Opening be closed, the 4th position correspond to ground connection purpose or actual ground connection, the 4th position is used for connecing The opening of the axle (4) closely handling grounding shaft (3) is released and for the axle (1) close to maneuver control device Opening be closed;And described retractable element is between described primary importance and the described second position Displacement is controlled by the crank (61) of aforementioned interlock (I) thus prevents when selector (S) is aforementioned Time on 4th position, aforementioned switches unit closes.
Control device the most according to claim 1, it is characterised in that aforementioned mechanical connects (L) It is anchored on the part (24) that the sliding component of closing feature (12) supports including formation, and described Partly having the sliding component (25) assembled slidably in (24), described sliding component is formed aforementioned Retractable element.
Control device the most according to claim 2, it is characterised in that this sliding component (25) or Handled by the position indicator (38) of contact, or via crank device (R) by being anchored on the portion of opening The part of the formation crank (15a) of part (15) is handled.
Control device the most according to claim 3, it is characterised in that be positioned at aforementioned at interlock During two positions, this sliding component (25) is additionally or by the crank (61) of aforementioned interlock (I) Handle, or by for close to be used for control switch element control lever shaft (1) locking device (59, 60,61) handling, described control lever shaft controls the crank (61) of aforementioned interlock (I).
Control device the most according to any one of claim 1 to 4, it is characterised in that aforementioned interlocking Device (I) includes the first blocking lever (45), the second blocking lever (51) and selector (S), described One blocking lever rotatably assembles around the control axle (2) for switch element, and include can The cover plate (47) close to closure of openings or release for controlling the control lever shaft (1) of switch element will be used for, Described second blocking lever assembles rotatably around the fixed axis supported and includes to discharge or close For the cover plate (53) of the opening close to grounding shaft (3), described first blocking lever and described second interlocking Bar (45,51) is mechanically connected by connecting rod (49), and described selector (S) has the pin through it (56), belonging to the first blocking lever (45), described selector (S) is about the fixing support of switchgear Being slidably fitted between two aforementioned location, described first blocking lever (45) includes aforementioned crank (61)。
Control device the most according to any one of claim 1 to 4, it is characterised in that aforementioned interlocking Device (I) includes being used for the axle (4) close to handling grounding shaft (3) when this unit is in the close position The device (63,38,45) of closure of openings.
Control device the most according to claim 5, it is characterised in that these devices include being anchored on tightly Gu be used for controlling on the axle (2) of the contact of switch element and being formed the position indicator of aforementioned contact The pin (63) of part (38), described pin (63) coordinates with aforementioned first blocking lever (45).
8. according to the control device described in claim 3 or 4, it is characterised in that these crank devices (R) Including the first crank (39) and the second crank (40), described first crank is referred to as indicator crank, its Axis about the fixing support belonging to switchgear assembles pivotly, and the first crank includes Part I (41), described Part I be fastened to the control axle of the contact for switch element and form aforementioned finger Showing that the part (38) of device coordinates, described second crank is referred to as sliding component crank, and it is around switchgear The second fixed axis supported pivotably assembles, and described second crank includes for via being positioned at described second Two pins (54,55) on crank (40) coordinate with the Part II (42) of the first crank (39) Part I (43), with for the Part II that coordinates with the crank (15a) of opening feature (15) (44)。
Control device the most according to any one of claim 1 to 4, it is characterised in that these are aforementioned Locking device (59,60,61) includes can be by key operated and can rotating drive cam (60) Lock (59), described cam (60) can coordinate with the crank (61) of aforementioned interlock (I), So that this device is in for closing or discharging for the opening close to the control lever shaft controlling switch element Position.
Control device the most according to any one of claim 1 to 4, it is characterised in that one or Each open (15) or closing feature (12) is fastened respectively to second and opens or close axle (13), institute State second to open or close shaft mechanical and be connected to the axle (2) for controlling switch element, each open (15) Or closing feature (12) is maintained at respectively by opening (10) or Guan Bi (9) brake unit respectively Corresponding to Guan Bi or the position of open position of switch element contact, these brake units can be by corresponding Actuating of parts and unlock.
11. control devices according to claim 2, it is characterised in that aforementioned sliding component (25) Including two openings (27,28) separated by dividing plate (29), one of them opening (28) is used for Receive closing feature (12) end (26), described overhang bracket on dividing plate (29), spring (30) By its one of them end bearing in the plane (31) belonging to aforesaid end (26), by it Opposing end portions be bearing on the inner surface (33) of sliding component (25), described sliding component also includes It is anchored on described sliding component (25) and for coordinating with sliding component crank (40) so that described Sliding component (25) is driven to the pin (34) of another location from a position.
12. control devices according to any one of claim 1 to 4, it is characterised in that it includes The close push button (6) opening button (5) and at least one manual operation of at least one manual operation, Upon being activated, the actuation mean (17,18) of each button can coordinate with sliding component (25) thus Rotate and drive it.
13. control device according to claim 12, it is characterised in that opening of described manual operation The close push button of button and described manual operation is positioned on the front of switchgear, thus user can be from this Face operates.
14. control devices according to claim 12, it is characterised in that one or each manual operation Open (5) or Guan Bi (6) parts are the pressings of the actuation mean (73,74) including translatable movement The button (71,72) of operation, is for opening or close in rotary moving opening according to button (71,72) Parts (15) or sliding component (25).
15. control devices according to claim 12, it is characterised in that one or each manual operation Open or closing feature is the rotating handles of the actuation mean (66,67) including rotatable movement Whether (64,65), be used for opening or closing opening feature in rotary moving (15) or slide according to handle Component (25).
16. control devices according to claim 12, it is characterised in that it include for realize open or Guan Bi and on a direction or other direction the single rotating handles (68) of rotatable movement, described Hands is included in two actuation means (69,70) of rotatable movement in two contrary direction of rotation, and It can coordinate with opening feature (15) or sliding component (25) respectively.
17. control devices according to any one of claim 1 to 4, it is characterised in that it includes At least one remote actuation coil (8), the actuation mean (19,20) of coil (7,8) is via support Coordinating with sliding component (25), described coil includes installing can freely revolve around closing feature (12) The blade (35) turned, described support includes the part that the part (37) with sliding component (25) coordinates (36), so, support and sliding component (25) are driven via blade (35) actuator coil (8) Rotate thus drive the rotation of closing feature (12).
18. control devices according to any one of claim 1 to 4, it is characterised in that switch is single Unit is vacuum circuit breaker or vacuum interrupter and grounding device is ground connection cutter.
In 19. 1 kinds piezoelectricity protection switchgear, including can control contact open and close open Parts (15) and closing feature (12), it is characterised in that it includes appointing according to claim 1 to 18 One described control device.
Piezoelectric unit in 20. 1 kinds, medium pressure electric unit includes that at least one is according to claim 19 Described switchgear.
CN201310122361.9A 2012-04-10 2013-04-10 Middle Piezoelectric switches unit control device and the switch element that controlled by this device Active CN103367056B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR12/01055 2012-04-10
FR1201055A FR2989216B1 (en) 2012-04-10 2012-04-10 Device for controlling a medium voltage electrical equipment and apparatus controlled thereby

Publications (2)

Publication Number Publication Date
CN103367056A CN103367056A (en) 2013-10-23
CN103367056B true CN103367056B (en) 2016-12-28

Family

ID=47678656

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310122361.9A Active CN103367056B (en) 2012-04-10 2013-04-10 Middle Piezoelectric switches unit control device and the switch element that controlled by this device

Country Status (5)

Country Link
EP (1) EP2650892B1 (en)
CN (1) CN103367056B (en)
ES (1) ES2522565T3 (en)
FR (1) FR2989216B1 (en)
RU (1) RU2619070C2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103715007B (en) * 2013-12-11 2016-03-30 镇江大全赛雪龙牵引电气有限公司 Tri-station isolating switch station locking mechanism
DE102015110216A1 (en) * 2015-06-25 2017-01-12 Schneider Electric Industries Sas locking device
CN105355520B (en) * 2015-11-26 2017-12-12 成都九十度工业产品设计有限公司 A kind of push button breaker
CN105337189B (en) * 2015-11-30 2017-07-28 浙江高压开关厂有限公司 A kind of operating mechanism box of solid insulation ring main unit
CN108122707A (en) * 2017-11-22 2018-06-05 国家电网公司 Three-station switch manual operating mechanism and three-station
FR3083366B1 (en) * 2018-06-29 2020-06-12 Socomec MANUAL CONTROL DEVICE FOR A REMOTE HANDLING SOURCE INVERTER
EP3693985A1 (en) * 2019-02-11 2020-08-12 ABB Schweiz AG Actuator for a medium voltage circuit breaker

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1399296A (en) * 2001-06-20 2003-02-26 阿尔斯托姆公司 Breaker actuator inserted in detachable rotating parts with linking logic
EP2172956A2 (en) * 2008-10-03 2010-04-07 Schneider Electric Industries SAS A mechanism for the synchronized operation of closing and opening of a switching device and a selector device in a switchgear.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6072136A (en) * 1998-05-07 2000-06-06 Eaton Corporation Electrical switching apparatus with modular operating mechanism for mounting and controlling large compression close spring
FR2812762A1 (en) * 2000-08-04 2002-02-08 Schneider Electric High Voltag High voltage circuit breaker handle movement mechanism having chassis mounted transmission shaft handle driven driving transmission shaft from neutral position and engaging command lock.
FR2940516B1 (en) 2008-12-18 2012-09-28 Schneider Electric Ind Sas Medium voltage power distribution cell
KR101100709B1 (en) * 2010-06-10 2011-12-30 엘에스산전 주식회사 Interlock apparatus for solid insulated switchgear

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1399296A (en) * 2001-06-20 2003-02-26 阿尔斯托姆公司 Breaker actuator inserted in detachable rotating parts with linking logic
EP2172956A2 (en) * 2008-10-03 2010-04-07 Schneider Electric Industries SAS A mechanism for the synchronized operation of closing and opening of a switching device and a selector device in a switchgear.

Also Published As

Publication number Publication date
EP2650892A1 (en) 2013-10-16
ES2522565T3 (en) 2014-11-17
RU2013113558A (en) 2014-10-10
CN103367056A (en) 2013-10-23
FR2989216B1 (en) 2015-02-20
FR2989216A1 (en) 2013-10-11
EP2650892B1 (en) 2014-08-27
RU2619070C2 (en) 2017-05-11

Similar Documents

Publication Publication Date Title
CN103367056B (en) Middle Piezoelectric switches unit control device and the switch element that controlled by this device
US5504284A (en) Device for mechanical and electrical lockout of a remote control unit for a modular circuit breaker
CN103187212B (en) Be provided with the circuit breaker of mechanical trip mechanism
CN202353077U (en) Ring main unit and interlocking device thereof
ES2399686T3 (en) Control device of an electric cutting device and electric cutting device that includes it
JP4618961B2 (en) Circuit breaker closing control device
US8610012B2 (en) Electrical switch operable through both manual and motor driven operations
CN103367055B (en) For the control device and electric protective equipment of electric protective equipment
US9139280B2 (en) Control box
US9685283B2 (en) Interlock for circuit interrupting device
US9275807B2 (en) Interlock system for switchgear
CN108511292B (en) Padlock mechanism of electric operating device
CN202268269U (en) Operation mechanism for mechanical interlocking of switch equipment
CN107424879A (en) A kind of residual current tripping mechanism and breaker
CN201134390Y (en) Locking unit mechanism of vacuum circuit-breaker
CN103325630B (en) Trip unit for electric protective equipment and electric protective equipment
CN211858450U (en) Interlocking device for switch cabinet and switch cabinet comprising same
EP3509081B1 (en) Rotary disconnector with padlockable actuation knob
CA2946934C (en) Interlock for circuit interrupting device
CN104319132A (en) Switching cabinet operating mechanism
CN104599877B (en) Interlocking mechanism between disconnecting switch and circuit breaker of solid insulated switch
US10319544B2 (en) Bolted pressure switch motor arrangement
CN104240990B (en) Lockout Device For Switchgear
CA2051263C (en) Interrupter switch with coordination of disconnect and interrupter linkage
JPH074756Y2 (en) Circuit breaker interlock device

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model