CN101211720A - Switch mechanism for air circuit breaker and its elbow connection rod - Google Patents

Switch mechanism for air circuit breaker and its elbow connection rod Download PDF

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Publication number
CN101211720A
CN101211720A CNA2007103057393A CN200710305739A CN101211720A CN 101211720 A CN101211720 A CN 101211720A CN A2007103057393 A CNA2007103057393 A CN A2007103057393A CN 200710305739 A CN200710305739 A CN 200710305739A CN 101211720 A CN101211720 A CN 101211720A
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CN
China
Prior art keywords
connecting rod
main shaft
switching
spring
air circuit
Prior art date
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Granted
Application number
CNA2007103057393A
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Chinese (zh)
Other versions
CN101211720B (en
Inventor
李尚彻
金起焕
杨弘益
安吉荣
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LS Electric Co Ltd
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LS Industrial Systems Co Ltd
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Filing date
Publication date
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Publication of CN101211720A publication Critical patent/CN101211720A/en
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Publication of CN101211720B publication Critical patent/CN101211720B/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/40—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/528—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a toggle or collapsible link between handle and contact arm, e.g. sear pin mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H2003/3089—Devices for manual releasing of locked charged spring motor; Devices for remote releasing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3052—Linear spring motors

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  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

Disclosed is a switch mechanism for air breaker as well as toggle joint connecting rod thereof, capable of preventing the air breakers from interference or collision with each other when implementing the closing and opening operation of the switch. The toggle joint connecting rod comprises: a first connecting rod, which is configured to rotate; a second connecting rod, which has a terminal connecting to the first connecting rod, and can be rotated through elastic energy released by switchingin spring, also has a pair of extending parts which extend towards the first connecting rod so as to prevent the first connecting rods from interfering with each other by means of inserting the first connecting rods between the extending parts; and a third connecting rod, having a terminal connecting to the second connecting rod and rotating together with the second connecting rod to ensure a movable contactor move to the switchingin position.

Description

The switching mechanism and the elbow connection rod thereof that are used for air circuit
Related application
Comprise theme among the No.20-2006-0033041 of korean application formerly that the disclosure relates on December 29th, 2006 to be submitted to, the whole content of this korean application is clearly incorporated into herein by reference.
Technical field
The disclosure relates to a kind of switching mechanism and elbow connection rod thereof that is used for air circuit, more specifically, relates to and a kind ofly can improve the switching mechanism that is used for air circuit and the elbow connection rod thereof of operating reliability by preventing the interference between the connecting rod.
Background technology
Usually, air circuit is as the lower-voltage type circuit breaker, and it carries out the ON/OFF or the open-circuit operation of load circuit when abnormal current (such as short circuit, earth fault and overcurrent) occurring.
In traditional air circuit, because the uneven confined state between the elbow connection rod, perhaps because collision and the interference between the side surface of elbow connection rod when the poultry press operation of switching-in spring and closing operation, elbow connection rod may be out of shape or damage.
Because elbow connection rod distortion and damaging, between the separating brake of air circuit and closing operation serious departing from appearred.Owing to offer the unbalanced of the three-phase current of load and voltage when air circuit is carried out separating brake and closing operation, so load is overheated or be damaged.And, the life-span of having reduced air circuit.
Summary of the invention
Therefore, purpose of the present disclosure is to provide a kind of switching mechanism and elbow connection rod thereof that is used for air circuit, and this switching mechanism can be by preventing because the damage of the elbow connection rod that the interference between the elbow connection rod causes or distortion improve operating reliability.
In order to realize these and other advantages, and according to as embody and the purpose of the present disclosure of general description herein, a kind of switching mechanism that is used for air circuit is provided, it comprises:
Fixed contact, it is connected to the mains side circuit or the load side electrical circuitry of each phase place, and is provided according to each phase place;
Mobile contactor, it is arranged to corresponding to fixed contact, and is movable to the separating brake position that is used to contact the closing position of fixed contact or is used for separating with fixed contact;
Main shaft, it is configured to rotatable, is used to actuating force is provided so that mobile contactor moves to closing position or separating brake position;
Main shaft lever, its coaxial arrangement are on main shaft, and an end with the mobile contactor of being connected to;
Switching-in spring is used to provide drive energy so that mobile contactor moves to closing position;
Activation lever, it is connected to switching-in spring, and the driving energy that switching-in spring provides can make its rotation;
First connecting rod, it is configured to rotatable, and has an end of the activation lever of being connected to so that with its interlocking;
Second connecting rod, it is connected to first connecting rod, can rotate by contacting rotating activation lever, has two plate-shaped members, and has the extension, with by first connecting rod being arranged in the interference that prevents between two plate-shaped members with first connecting rod;
And third connecting rod, it has an end that is connected to second connecting rod, has another end that is connected to the main shaft lever, and together rotates with second connecting rod, so that make mobile contactor move to closing position, is used for the rotary main shaft lever.
In order to realize these and other advantages, and according to as embody and the purpose of the present disclosure of general description herein, a kind of elbow connection rod that is used for the switching mechanism of air circuit also is provided, it comprises:
First connecting rod, it is configured to rotatable;
Second connecting rod, it has an end that is connected to first connecting rod, and the elastic energy by the switching-in spring of releasing can make its rotation, and has a pair of extension, and it extends with by first connecting rod being placed the interference that prevents between it with first connecting rod; With
Third connecting rod, it has an end that is connected to second connecting rod, and rotates together with second connecting rod, is used to make mobile contactor to move to closing position.
In conjunction with the drawings, by following detailed description of the present disclosure, purpose, feature, aspect and the advantage with other of front of the present disclosure will become more apparent.
Description of drawings
Comprised being used to provide further understanding of the present invention, and incorporated into and the accompanying drawing that constitutes the part of this specification shows embodiments of the invention, and be used from and explain principle of the present invention together with describing one.
In the accompanying drawings:
Fig. 1 is the cross section view that is used for the switching mechanism of air circuit according to of the present invention;
Fig. 2 shows the cross section view according to the compressive state of the switching-in spring of the switching mechanism that is used for air circuit of the present invention;
Fig. 3 shows the cross section view according to the closed circuit state of the switching mechanism that is used for air circuit of the present invention; And
Fig. 4 shows the perspective view according to the elbow connection rod of the switching mechanism that is used for air circuit of the present invention.
Embodiment
Now with detailed preferred embodiment, its example shown in the drawings with reference to present disclosure.
Hereinafter, switching mechanism and the elbow connection rod thereof that is used for air circuit according to of the present invention will be explained with reference to the accompanying drawings in further detail.
Shown in Fig. 1 to 3, the switching mechanism 2 that is used for air circuit according to the present invention comprises fixed contact 39, mobile contactor 38, main shaft 3, main shaft lever 40, switching-in spring 25, activation lever 24, elbow connection rod 29,34 and 35.
Elbow connection rod 29,34 and 35 is called first, second and third connecting rod.
Fixed contact 39 is connected to such as mains side circuit or load side electrical circuitry in each phase place in three phase places of R, S and T, and arranges according to each phase place.When air circuit is implemented as the air circuit of the three-phase alternating current that is used for R, S and T, arrange fixed contact 39 according to each phase place.
Mobile contactor 38 is arranged to corresponding with fixed contact 39.That is, when three fixed contacts 39 are provided, provide three mobile contactor 38.Mobile contactor 38 can move to closing position with contact fixed contact 39, perhaps moves to the separating brake position to separate with fixed contact 39.
Main shaft 3 can rotate, thereby the actuating force of providing is so that a plurality of mobile contactor (that is three mobile contactor) moves to closing position or separating brake position simultaneously.
Main shaft lever 40 coaxially is arranged on the main shaft 3, and an end is connected to mobile contactor.
Switching-in spring 25 provides the driving energy, so that mobile contactor 38 is driven into closing position.
Activation lever 24 is connected to switching-in spring 25, and can rotate by the driving energy of switching-in spring 25.
First connecting rod 29 can rotate, and an one end is connected to activation lever 24, so as with its interlocking.
Second connecting rod 34 is by rotatable with first connecting rod 29 interlockings, and comprises two plate-shaped member 34a and 34b.Second connecting rod 34 has extension 55, and extend so that by first connecting rod 29 being placed the interference that prevents between plate-shaped member 34a and the 34b with first connecting rod 29 this extension.Extension 55 is made up of a pair of extension 55a and the 55b that are arranged in plate- shaped member 34a and 34b.
Third connecting rod 35 has an end that is connected to second connecting rod 34, and another end that is connected to main shaft lever 40.Third connecting rod 35 so that removable connector 38 is driven into closing position, makes 40 rotations of main shaft lever with second connecting rod 34 rotations thus.
Shown in Fig. 1 to 3, the switching mechanism 2 that is used for air circuit according to the present invention further comprises rotating shaft 21, cam 22, pair of side plates 9, first breech lock 27, opens lever 28, breech lock roller 30, second breech lock 31, close lever 32, connecting axle 36, tripping spring 37 and following terminal 39-1.
Cam 22 is installed on the rotating shaft 21, manually or is automatically rotated thus.That is, rotating shaft 21 is connected to manual handle or motor (not shown), is manually turned thus or the electricity driving.
Pair of side plates 9 is at supported on both sides switching mechanism 2.
Activation lever 24 rotatably is supported between two side plates 9, and by rotate this first connecting rod and cam 22 and rotating shaft 21 coaxial installations with first connecting rod 29 interlockings.
An end of switching-in spring 25 is supported by the spring base (not shown), and its another end is supported by the spring support (not shown).Spring base is connected to the lower end of activation lever 24, and spring support is fixedly mounted in side plate 9.Activation lever 24 is rotated along with the rotation of cam 22, and therefore spring base along the left of Fig. 1 to 3 to moving.Here, switching-in spring 25 is put aside elastic energy thus by just compressing to the spring base that moves along left.
First breech lock 27 extends along upper and lower direction, and is biased to rotate along a direction elasticity by being connected the pin that is fixed to side plate 9 and the spring (not specifying Reference numeral) between first breech lock 27.Prevent the cam rotation in the elastic energy for the switching-in spring 25 of savings when being released in the accumulation of energy operation, first breech lock 27 is by contact cam 22 lockings or locking cam 22.
Open lever 28 and be rotatably installed in above first breech lock 27, so that locking or discharge first breech lock 27.
First connecting rod 29 has " L " shape, and can be the center rotation with the central shaft (not shown) that is fixedly mounted in side plate 9.The following horizontal-extending of first connecting rod 29 partly is connected to second connecting rod 34.Upper end at first connecting rod 29 forms groove 49, and this groove is used to pack up or decontrol the breech lock roller 30 of second breech lock 31 so that locking or release first connecting rod 29.
Second breech lock 31 is arranged in above the first connecting rod 29, and it has almost the shape of " V ".Breech lock roller 30 is rotatably installed in the central part office along its length of second breech lock 31.Second breech lock 31 is biased, so that rotate along a direction by being connected the pin (not specifying Reference numeral) that is fixed to side plate and the bias spring (not specifying Reference numeral) between second breech lock 31.Therefore, when breech lock roller 30 enters in the groove 49 of first connecting rod 29, first connecting rod 29 lockings second breech lock 31.On the contrary, when breech lock roller 30 was drawn out the groove 49 of (disengaging) first connecting rod 29, second breech lock 31 was released, and rotated along a direction by bias spring thus, that is, rotate along the counter clockwise direction among Fig. 1 to 3.
Close lever 32 and be disposed in above second breech lock 31, and can be the center rotation with the central shaft that is fixed to side plate 9.Close the position that lever 32 can rotate to locking second breech lock 31 or discharge the locking of second breech lock 31.As making the device that closes lever 32 rotations, can provide by the user and press the pass button of operating, and be connected this pass button and close the pass connection that is delivered to pass lever 32 between the lever 32 with the displacement that will close button.Close button and close to connect and be not illustrated.
The lower end of second connecting rod 34 is connected to activation lever 24, so as with first connecting rod 29 together with activation lever 24 interlockings.Second connecting rod 34 contacts with the pin 33 that is arranged in activation lever 24, and sells 33 a promotion one side surface.
Third connecting rod 35 is connected to the upper end of second connecting rod 34, and can rotate with second connecting rod 34 according to the displacement of second connecting rod 34.
Main shaft 3 extends to pass sidewall 9.Main shaft lever 40 is connected to third connecting rod 35, and is installed on the main shaft 3, so that with main shaft 3 rotations.Therefore, when third connecting rod 35 clockwise or when being rotated counterclockwise, main shaft lever 40 counterclockwise or turn clockwise, and therefore main shaft 3 is counterclockwise or turn clockwise.
Connecting axle 36 is used for third connecting rod 35 is connected to main shaft 3, so that interlocking between them.
An end of tripping spring 37 is supported by connecting axle 36, and its another end is supported by a steady pin (not specifying Reference numeral) that is fixed on the side plate 9.Therefore with reference to figure 3, main shaft lever 40 is rotated counterclockwise at the closing position of air circuit, and makes connecting axle 36 move to left side (that is, moving towards fixed contact 39) among the figure.Therefore, tripping spring 37 extends with the savings elastic energy.Under this state, when the user presses the pass button, close lever 32 and turn clockwise like that as shown in Figure 1, to discharge second breech lock 31.Therefore, second breech lock 31 is rotated counterclockwise in the drawings, and breech lock roller 30 is drawn out the groove 49 of first connecting rod 29.Therefore here, by the elastic energy of the tripping spring 37 of releasing, main shaft lever 40 and main shaft 3 are rotated counterclockwise, and third connecting rod 35 and second connecting rod 34 turn clockwise.
Main shaft lever 40 is coaxial to be connected on the main shaft 3 so that therewith rotation, and connects with mobile contactor 38.When main shaft lever 40 was rotated counterclockwise, mobile contactor 38 was followed main shaft lever 40 and is separated with fixed contact 39, to realize open circuit.On the contrary, when main shaft lever 40 turned clockwise on figure, mobile contactor 38 was followed main shaft lever 40 and is moved with contact fixed contact 39.Therefore, between power supply and load, formed closed circuitly, electric current is flowed.
Following terminal 39-1 is connected to mobile contactor 38 by the electric conductor (not shown), and is electrically connected to load or power supply.Therefore, when mobile contactor 38 contacts with fixed contact 39, between power supply and load, realize closed circuitly, electric current is flowed.On the contrary, when mobile contactor 38 is separated with fixed contact 39, between power supply and load, realize open circuit, prevent that thus electric current from flowing.
The elbow connection rod that is used for the switching mechanism of air circuit according to of the present invention is described in further detail with reference to Fig. 4.
As shown in Figure 4, carry out according to the elbow connection rod of the switching mechanism that is used for air circuit according to the present invention and to stir (toggling) operation, the repulsion load that occurs when bearing closing operation.Elbow connection rod comprises first connecting rod 29, second connecting rod 34 and third connecting rod 35.
First and second connecting rods 29 and 34 interconnect by first connecting pin 41, and second and third connecting rod 34 and 35 interconnect by second connecting pin 42 that is fixed to third connecting rod 35.Extend to referring to figs. 1 to 3, the first connecting pins 41 and to be connected to activation lever 24, thus first and second connecting rods 29 and 34 are connected to activation lever 24, be used for activation lever 24 interlockings.
In order to prevent first and second connecting rods 29 and 34 because the interference the when closing operation of air circuit and sub-switching operation and collision mutually, second connecting rod 34 comprises the first plate-shaped member 34a and the second plate-shaped member 34b.And the first plate-shaped member 34a and the second plate-shaped member 34b are arranged to and are separated from each other predetermined distance.And first connecting rod 29 is arranged between the first plate-shaped member 34a and the second plate-shaped member 34b.Reference numeral 52 expressions are along the side surface of thickness direction in the face of the first connecting rod 29 of second connecting rod 34.
Although use above-mentioned structure, but when the operation air circuit, because below, first and second connecting rods 29 and 34 may collide mutually, such as rigging error and the uneven load when the accumulation of energy operation of switching-in spring, closing operation or the sub-switching operation.
In order to prevent that first and second connecting rods 29 and 34 are because the interference when the accumulation of energy operation of switching-in spring, closing operation and the sub-switching operation and collision mutually, second connecting rod 34 is equipped with extension 55, and this extension is arranged in first connecting rod 29 between the first plate-shaped member 34a and the second plate-shaped member 34b towards first connecting rod 29 extensions and permission.Extension 55 is made up of the extension 55a of the first plate-shaped member 34a and the extension 55b of the second plate-shaped member 34b.
When the operation air circuit when carrying out accumulation of energy, combined floodgate and separating brake, the extension 55 of second connecting rod 34 keeps the insertion state of first connecting rod 29 between the first and second connecting rod 34a and 34b, prevents interference or collision between first and second connecting rods 29 and 34 thus.
The switching mechanism 2 that is used for air circuit according to the present invention is carried out accumulation of energy operation, closing operation and sub-switching operation.More specifically, switching mechanism 2 is carried out following operation: the accumulation of energy operation is used to make switching-in spring 25 savings elastic energies; Closing operation is used for making mobile contactor 38 contact fixed contacts 39 by the elastic energy that switching-in spring 25 is put aside in use; And sub-switching operation, be used for mobile contactor 38 being separated with fixed contact 39 by the elastic energy that tripping spring 37 is put aside in use.
Under the state that mobile contactor 38 has been separated with fixed contact 39, make the switching-in spring 25 savings elastic energies of air circuit so that carry out the operation of closing operation with reference to Fig. 2 explanation.As shown in Figure 2, the handle (not shown) by user's manual operation provides at rotating shaft 21 places perhaps by automatically operating rotating shaft 21 by the motor (not shown) that is connected to rotating shaft 21, is rotated counterclockwise rotating shaft 21.Therefore, cam 22 is rotated counterclockwise, and therefore makes and cam 22 and the rotating shaft 21 coaxial first connecting rod that is connected 29 rotations.Under this state, in rotation, compress switching-in spring 25 by the spring base (not shown) with a terminal activation lever 24 that is connected of first connecting rod 29.Therefore, the elastic energy that is used for closing operation is put aside switching-in spring 25.
Hereinafter, will be with reference to the closing operation of figure 3 explanation air circuits.
When the user pressed the switch knob (not shown), the lever 28 of opening that interlocking is connected to switch knob was rotated counterclockwise.Therefore, discharge first breech lock 27, and rotate along a direction by the bias spring that is supported on side plate 9 places.As a result, discharged the lock-out state that passes through first breech lock 27 of cam 22.By the elastic energy of the switching-in spring 25 of releasing, activation lever 24 is rotated counterclockwise.Therefore, the first connecting rod 29 that end is connected to activation lever 24 is rotated counterclockwise, and therefore second and third connecting rod 34 and 35 be rotated counterclockwise.Under this state, main shaft lever 40 turns clockwise, and the mobile contactor 38 that therefore is connected to main shaft lever 40 contacts with fixed contact 39.As a result, finished the closing operation of air circuit.
During closing operation, along with the connecting axle that provides at main shaft lever 40 places 36 moves along direction left, switching-in spring 37 extends, and savings is used for the elastic energy of closing operation thus.
Below, will be with reference to the sub-switching operation of figure 1 explanation air circuit.
When the user presses the pass button, close lever 32 and turn clockwise as shown in Figure 1 to discharge second breech lock 31.Therefore, second breech lock 31 is rotated counterclockwise, and breech lock roller 30 is drawn out the groove 49 of first connecting rod 29.Here, the elastic energy by the tripping spring 37 of releasing is rotated counterclockwise main shaft lever 40 and main shaft 3, and thus second and third connecting rod 34 and 35 turn clockwise.Therefore, the mobile contactor 38 that is connected to main shaft lever 40 is separated with fixed contact 39, realizes the open circuit between power supply and the load thus.
During accumulation of energy operation, closing operation and sub-switching operation, first, second and third connecting rod 29,34 and 35 are carried out and are stirred operation.Because the extension 55a and the 55b of second connecting rod 34 are positioned to first connecting rod 29 is inserted in therebetween, therefore prevent the unbalanced confined state between the elbow connection rod 29,34 and 35, and prevented interference or the collision between first and second connecting rods 29 and 34 in the operation air circuit.
In air circuit according to the present invention, second connecting rod 34 comprises paired plate-shaped member, and the extension, this extension be arranged in each end of this plate-shaped member and extension so that first connecting rod 29 between this plate-shaped member.Therefore, when the operation air circuit, prevent interference or collision between first and second connecting rods 29 and 34, prevented the distortion or the damage of elbow connection rod thus.As a result, air circuit has the reliability and the long life-span of raising.
The embodiment of front and advantage only are exemplary, and should not be interpreted as limiting present disclosure.This instruction can easily be applied to the device of other types.This description is illustrative, and the scope of unrestricted claim.Many alternatives, modifications and variations are conspicuous for those skilled in the art.Can make up feature, structure, method and other characteristics of exemplary embodiment described herein in several ways, to obtain extra and/or interchangeable exemplary embodiment.
Owing under the prerequisite that does not depart from its characteristic, can implement this feature with several forms, therefore it should also be understood that, except as otherwise noted, otherwise above-described embodiment is not subjected to the restriction of previously described any details, therefore but should be interpreted as widely dropping in the claims restricted portion, and drop on all changes in the equivalent of the boundary of claim or this boundary and revise and comprise by claims.

Claims (3)

1. switching mechanism that is used for air circuit comprises:
Fixed contact, it is connected to the mains side circuit or the load side electrical circuitry of each phase place, and is provided according to each phase place;
Mobile contactor, it is arranged to corresponding to described fixed contact, and is movable to the separating brake position that is used to contact the closing position of described fixed contact or is used for separating with described fixed contact;
Main shaft, it is configured to rotatable, is used to actuating force is provided so that described mobile contactor moves to described closing position or described separating brake position;
Main shaft lever, its coaxial arrangement and have an end that is connected to described mobile contactor on described main shaft;
Switching-in spring is used to provide drive energy so that described mobile contactor moves to described closing position;
Activation lever, it is connected to described switching-in spring, and the actuating force that provides by described switching-in spring is rotatable;
First connecting rod, it is configured to rotatable, and has an end that is connected to described activation lever so that with its interlocking;
Second connecting rod, it can be by rotating with described first connecting rod interlocking, have two plate-shaped members, and have, so that by described first connecting rod being arranged in the interference that prevents between described two plate-shaped members with described first connecting rod towards the extension of described first connecting rod; With
Third connecting rod, it has an end that is connected to described second connecting rod, has another end that is connected to described main shaft lever, and together rotates with described second connecting rod, so that make described mobile contactor move to described closing position, be used to rotate described main shaft lever.
2. elbow connection rod that is used for the switching mechanism of air circuit comprises:
First connecting rod, it is configured to rotatable;
Second connecting rod, it has an end that is connected to described first connecting rod, elastic energy by the switching-in spring of releasing can rotate, and has paired extension, extend towards described first connecting rod described paired extension, so that by described first connecting rod being inserted the interference that prevents with described first connecting rod therebetween; With
Third connecting rod, it has an end that is connected to described second connecting rod, and rotates together with described second connecting rod, is used to make mobile contactor to move to closing position.
3. the elbow connection rod that is used for the switching mechanism of air circuit as claimed in claim 2, wherein said first connecting rod is a plate-shaped member, and described second connecting rod comprises paired plate-shaped member, and described paired plate-shaped member is arranged to be separated from each other predetermined distance.
CN2007103057393A 2006-12-29 2007-12-28 Switch mechanism for air circuit breaker and its elbow connection rod Active CN101211720B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR2020060033041 2006-12-29
KR20-2006-0033041 2006-12-29
KR2020060033041U KR200442291Y1 (en) 2006-12-29 2006-12-29 Air circuit breaker and link thereof

Publications (2)

Publication Number Publication Date
CN101211720A true CN101211720A (en) 2008-07-02
CN101211720B CN101211720B (en) 2011-06-01

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EP (1) EP1939903B1 (en)
KR (1) KR200442291Y1 (en)
CN (1) CN101211720B (en)
DE (1) DE602007006405D1 (en)
ES (1) ES2345362T3 (en)
MY (1) MY153222A (en)
RU (1) RU2376670C2 (en)

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CN101714474A (en) * 2008-10-03 2010-05-26 施耐德电器工业公司 A mechanism for the synchronized operation of closing and opening of a switching device and a selector device in a switchgear

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US7964809B2 (en) 2008-07-29 2011-06-21 General Electric Company Cam operated spring discharge interlock mechanism
KR101015296B1 (en) 2008-12-31 2011-02-15 엘에스산전 주식회사 Circuit breaker having delaying function for a rotation of cam
DE102012200238A1 (en) 2012-01-10 2013-07-11 Siemens Aktiengesellschaft Electrical switching device
RU2676467C2 (en) * 2014-10-27 2018-12-29 Хамзат Исхакович Геграев Load break switch drive
KR20210042519A (en) * 2019-10-10 2021-04-20 엘에스일렉트릭(주) Switch for a vacuum circuit breaker and vacuum circuit breaker having the same
CN114388282A (en) * 2021-12-28 2022-04-22 北京四方继保工程技术有限公司 Operating mechanism for on-column circuit breaker of environment-friendly built-in isolating switch

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN101714474A (en) * 2008-10-03 2010-05-26 施耐德电器工业公司 A mechanism for the synchronized operation of closing and opening of a switching device and a selector device in a switchgear
CN101714474B (en) * 2008-10-03 2014-01-22 施耐德电器工业公司 A mechanism for the synchronized operation of closing and opening of a switching device and a selector device in a switchgear

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DE602007006405D1 (en) 2010-06-24
ES2345362T3 (en) 2010-09-21
EP1939903B1 (en) 2010-05-12
RU2376670C2 (en) 2009-12-20
KR200442291Y1 (en) 2008-10-27
CN101211720B (en) 2011-06-01
EP1939903A1 (en) 2008-07-02
RU2007149529A (en) 2009-07-10
MY153222A (en) 2015-01-29
KR20080002431U (en) 2008-07-03

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