CN102576632B - Auxiliary device of circuit breaker - Google Patents
Auxiliary device of circuit breaker Download PDFInfo
- Publication number
- CN102576632B CN102576632B CN201080045254.5A CN201080045254A CN102576632B CN 102576632 B CN102576632 B CN 102576632B CN 201080045254 A CN201080045254 A CN 201080045254A CN 102576632 B CN102576632 B CN 102576632B
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- China
- Prior art keywords
- circuit breaker
- secondary closure
- external operation
- operation handle
- morning
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/12—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel
- H01H2071/565—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel using a add on unit, e.g. a separate rotary actuator unit, mounted on lever actuated circuit breakers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
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- Breakers (AREA)
Abstract
The disclosed auxiliary device, which is of a circuit breaker and which may be an external operation handle device and/or an undervoltage release device, is configured with the undervoltage release device separated into two modules that are an electromagnetic release unit (7) and a quick-closing contact unit (8), and the release unit (7) is set inside the case (1e) of the circuit breaker (1). Furthermore, the quick-closing contact unit (8) is externally attached to the base (3) of the external operation handle device (2), the limit switch (8a) of the quick-closing contact is linked to the sliding base (6) of the external operation handle device, and the aforementioned quick-closing contact unit is caused to close at an earlier stage than the closing of the main circuit contact of the circuit breaker (1) while turning ON the rotary handle (4) of the external operation handle device (2), corresponding to the optional specifications of an included quick-closing contact function.
Description
Technical field
The present invention relates to a kind of for circuit breaker that the distribution that is applied to low voltage distribution equipment is used and earth leakage circuit breaker the servicing unit as the circuit breaker of object, and relate more specifically to be arranged on circuit breaker and as under voltage trip gear and the external operation handle device of the servicing unit of circuit breaker.
Background technology
As everyone knows, various servicing units are prepared as the option of the circuit breaker for described in title; A kind of such device is under voltage trip gear.
For example, when protected circuit voltage (voltage of main circuit or control circuit) (is reduced to the voltage predetermined; in 35% to 85% scope of rated voltage) when following; this under voltage trip gear makes circuit breaker trip; cut off thus main circuit as an example, known have an internally-arranged type under voltage trip gear (for example, referring to patent documentation 1) that to insert in order using and to be arranged in Shell of circuit breaker.
This internally-arranged type under voltage trip gear is provided with the tripping mechanism on the cassette shell being installed in Shell of circuit breaker, and by electromagnet, actuated piece, armature retracting spring be connected to the module composition of the release link of armature, and that this actuated piece is connected to the armature of electromagnet is relative with the tripping operation cross bar with circuit breaker.
In patent documentation 1, describe operation and the function of this under voltage trip gear in detail; The coil of electromagnet is usingd the main circuit of circuit breaker and is encouraged as the electric current of the control circuit of its power supply by flowing through, and in static operating process, relatively attracts the armature of electromagnet with retracting spring, so that actuated piece is remained on to retracted position.On the other hand, when main circuit lower voltage is following to prescribed limit, the attraction of electromagnet reduces, and the restriction of actuated piece is disengaged.Thus, actuated piece bear retracting spring bias force, encounter tripping operation cross bar and cause the trip operation of circuit breaker.
After trip operation, when the handle of circuit breaker is operated to enable possition from off-position, the release link of the under voltage trip gear connecting with this handle makes actuated piece turn back to the retracted position relative with retracting spring.Under this state, if main circuit voltage is got back to prescribed limit, electromagnet attracts and keeps armature, and actuated piece remains on retracted position, thereby close circuit breaker again.
Under voltage trip gear as circuit breaker, also known have an early under voltage trip gear of secondary closure contact, it is combined above-mentioned tripping mechanism with secondary closure contact-making switch early, wherein early secondary closure contact-making switch is connected to the power circuit (for example, referring to patent documentation 2) of electromagnet coils.
This has the early under voltage trip gear of secondary closure contact makes breaker closing reliably and safely, and therefore above-mentioned by the tripping mechanism that comprises electromagnet with structure that morning, secondary closure contact-making switch was combined, at this device, be arranged under the use state on circuit breaker, early secondary closure contact-making switch mechanism is connected to drive rod (cam type bar) or the analog on the handle that is arranged on circuit breaker.
When the handle of circuit breaker that is parked in trip position again closed and when turning back to off-position and then moving towards enable possition in the lever operated process of carrying out after the trip operation in circuit breaker, early secondary closure contact was closed before the main circuit contact part closure of circuit breaker, and carried out energized solenoids by electric current.Now, if the voltage of main circuit is got back to the voltage in prescribed limit, the armature of the electromagnet of tripping mechanism is attracted and keeps, and actuated piece remains on retracted position, thereby when handle motion is during to enable possition, circuit breaker is by again closed.On the other hand, if main circuit voltage is not got back to the voltage of regulation, electromagnet armature is not attracted, even thereby handle motion to enable possition, circuit breaker does not reset yet, and turns back to tripped condition.
The under voltage trip gear with secondary closure contact early in patent documentation 1 disclosed internally-arranged type under voltage trip gear size larger, and if do not do other and revise, will be difficult to cover in the housing of circuit breaker; Therefore, conventionally unit housings as in patent documentation 2 from being externally mounted to the side surface of Shell of circuit breaker, and be connected on driving handle via drive rod, this driving handle is the turning handle of circuit breaker, early secondary closure contact-making switch mechanism is arranged on this turning handle.
On the other hand; it is upper and for wherein that above-mentioned circuit breaker (circuit breaker, earth leakage circuit breaker that distribution is used) is generally arranged on distributing board, distribution panelboard etc.; and as servicing unit, use the external operation handle device of carrying out from the operation of the anterior open and close circuit breaker of panel door.As a this example, the rock type handle of known circuit breaker is driven to unlatching by being installed on the operation of the turning handle on external operation handle device, close the design (referring to patent documentation 3) with reset position.
Next, with Fig. 8, explain the structure of the conventional example of external operation handle device.At Fig. 8 (a) in 8 (c), the 1st, circuit breaker (distribution circuit breaker), and 2 are external operation handle devices, its servicing unit as circuit breaker 1 and being installed on the housing of circuit breaker.At this, circuit breaker 1 is configured to comprise the 1b of opened/closed mechanism, the moving contact 1c, the 1d of opened/closed mechanism that comprises reverse operating type elbow-bar mechanism that are installed in housing 1a, be arranged on housing 1a top and be connected to the rock type handle 1e of the 1d of opened/closed mechanism and overcurrent tripping device 1f etc.5a is the unlatching that shows handle 4, close, the indication plate of tripping operation, reset position.
Known the opened/closed operation of above-mentioned circuit breaker 1; When rock type handle 1e is by from enable possition as shown to the right and when moving downward off-position and switching, at this trip midway, the 1d of opened/closed mechanism carries out reverse operating, thereby bears the bias force of the opened/closed spring of the 1d of opened/closed mechanism, to open moving contact 1c.In addition, when detecting main circuit overcurrent and overcurrent tripping device 1f and operate, the 1d of opened/closed mechanism carries out releasing operation, and moving contact 1c is opened, and then main circuit current is cut off.By this trip operation, rock type handle 1e moves to the position in the middle of enable possition and off-position, and shows trip operation state.
On the other hand, external operation handle device 2 comprises turning handle 4, handle cover 5, glide base 6 and other driver part, and they are arranged on by fixing on pedestal in place 3 to the housing 1a top of circuit breaker 1 with screw fastening; The rotating base 4b that is connected to the bolster 4a of handle 4 comprises crank-pin 4c.Glide base 6 is guided slidably and is supported along the direction that is parallel to the rock type handle 1e of circuit breaker 1, and perpendicular to the slotted hole 6a of glide direction at its plate face inner opening; Crank-pin 4c therewith slotted hole 6a mates and is connected with turning handle 4.In addition, external operation handle device 2 is being installed under the state on circuit breaker 1, glide base 6 comprises: impeller 6b, and this impeller is relative from the pinch hand of the open side rock type handle 1 outstanding with housing 1a from circuit breaker 1; And bias spring 6c, this bias spring is pressed impeller 6b towards the pinch hand of handle 1e from behind.
In above-mentioned structure, when turning handle 4 forwards off-position with manual operation to from enable possition, glide base 6 slides to the right via crank-pin 4c, and the rock type handle 1e of circuit breaker 1 is driven towards off-position via impeller 6b.At this, when handle 1e is displaced to the basic centre position of movement travel, the elbow-bar mechanism that is arranged on the 1d of opened/closed mechanism in circuit breaker 1 is carried out reverse operating.Thus, moving contact 1c leaves fixed contact 1b and moves to open position, and circuit breaker 1 is closed.
In addition,, when circuit breaker 1 detects overcurrent and carries out trip operation, the handle 4 that is connected to the external operation handle device 2 of rock type handle 1e moves to and is positioned at the trip position of enable possition and off-position centre and stops.And for the close circuit breaker 1 again of state thus, first, turning handle 4 forwards reset position to.Thus, the tripping mechanism that is connected to the 1d of opened/closed mechanism of circuit breaker 1 is reset, then, when turning handle 4 is reverse and forward enable possition to, the rock type handle 1e of circuit breaker 1 moves to off-position, and moving contact 1c contacts with fixed contact 1b, thereby again makes circuit breaker 1 closure.
Patent documentation 1: No. H10-255639th, Japanese Laid-Open Patent Application
Patent documentation 2: patent discloses No. 3867541
Patent documentation 3: No. 2007-134148th, Japanese Laid-Open Patent Application (Fig. 7 and Fig. 8)
Yet, by manufacturer, as above-mentioned traditional under voltage trip gear of preparing for the servicing unit of circuit breaker and external operation handle device, in adaptation, aspect the optional specification of user's appointment, have problem.
That is the various servicing units of, being prepared as the option of above-mentioned circuit breaker by manufacturer are used to adapt to the specification that user requires.In this case, optional under voltage trip gear product comprises as mentioned above and the common internally-arranged type under voltage trip gear (referring to patent documentation 1) of secondary closure contact early is not set and has the early under voltage trip gear (referring to patent documentation 2) of secondary closure contact; These specifications are also according to the type of circuit breaker, rated voltage and other parameter and difference.In addition, the situation that also has circuit breaker to combine with external operation handle device in order to use, in these and other mode, servicing unit type changes according to the environment for use of circuit breaker, user specification etc.
Therefore, various types of under voltage trip gears must be prepared by circuit breaker manufacturer, and these under voltage trip gears have according to different specifications and the design of the specified option of user.
Yet, when adopting the above-mentioned under voltage trip gear with secondary closure contact early as the servicing unit (referring to patent documentation 2) of circuit breaker, be necessary to make circuit breaker to be equipped with in advance special-purpose turning handle, this turning handle is provided with and is connected to the early drive rod of secondary closure contact-making switch mechanism.
Yet in common circuit breaker (referring to Fig. 8), rock type handle does not arrange as standard, and when adopting the under voltage trip gear with secondary closure contact morning, must use the various circuit breakers with special-purpose turning handle.If the turning handle of above-mentioned special use sets in advance in circuit breaker as standard, in adaptation, have under the expection of the under voltage trip gear of secondary closure contact early, there is following problem, in the situation that do not use the under voltage trip gear with secondary closure contact morning, this specification is unnecessary, and the cost of circuit breaker raises.
Summary of the invention
Designed in view of the above problems the present invention, the object of this invention is to provide a kind of servicing unit for circuit breaker, wherein about being applied to the under voltage trip gear of circuit breaker, the optional product relevant with under voltage trip gear can be divided into a plurality of unit and construct in advance, and the unit of selecting according to the specification option by user's appointment can in conjunction with and use together with circuit breaker, to adapt to the specification with specified variety of option by simple means.
To achieve these goals, the servicing unit of circuit breaker according to an embodiment of the invention is to have as the external operation handle device of servicing unit and the circuit breaker servicing unit of under voltage trip gear, wherein, under voltage trip gear is divided into two modules, comprises the trip unit of tripping mechanism and comprises early secondary closure osculating element morning of secondary closure contact; Unit is arranged in the housing of circuit breaker from inside, early secondary closure osculating element is from outer setting externally operating grip device, thereby, early secondary closure contact is connected to the internal mechanism of external operation handle device, and early secondary closure contact externally operating grip device open operation process midway and closed before the main circuit contact part closure of circuit breaker.
In addition, the servicing unit of circuit breaker according to an embodiment of the invention is external operation handle device, and it comprises: be installed on the pedestal on Shell of circuit breaker; Rotary type handle; Glide base, this glide base changes into rectilinear motion by the rotation of handle and along the direction of opening and closing, drives the rock type handle of circuit breaker; Impeller, this impeller is installed on glide base and is relative with rock type handle from the direction of operating of opening; And spring, this spring impeller of setovering from behind, external operation handle device is configured with the backlash being arranged between glide base and impeller, and glide base is captured according to the motion of backlash, and in the process of opening circuit breaker, cause early secondary closure contact morning of secondary closure osculating element to carry out opened/closed operation.
In addition,, in the servicing unit of circuit breaker according to an embodiment of the invention, early secondary closure osculating element comprises the limit switch that is provided with secondary closure contact morning and the assembly that keeps the framework with terminal of limit switch; This framework is removably installed on the pedestal of external operation handle device, and the operative end of limit switch is connected to the glide base of external operation handle device in installation site at this.
Servicing unit by means of circuit breaker of the present invention, by as mentioned above under voltage trip gear being configured to the servicing unit of circuit breaker, can suitably select the minimum number of optional product type and be applied to circuit breaker, thereby the option specification of various appointments can adapt to by simple means.
That is, when not thering is the common under voltage trip gear of early secondary closure contact function and apply as the servicing unit of circuit breaker, can by trip unit is arranged on circuit breaker enclosure interior and directly adaptation.In addition, in the case, external operation handle device can be arranged on circuit breaker if necessary.
On the other hand, as under voltage trip gear, when optional specification changes over while comprising early secondary closure contact function, above-mentioned existing trip unit does not make an amendment and is arranged in the housing of circuit breaker from inside, and early secondary closure osculating element can be used as that optional product adds and is installed on the external operation handle device being arranged on circuit breaker from outside, to adapt to this specification by simple means.Therefore, circuit breaker manufacturer can prepare than optional product few in prior art, and the cost of being born by stock and this optional product of management significantly reduces.
Accompanying drawing explanation
Fig. 1 is the exploded perspective view of example of the present invention, and its middle auxiliary device external operation handle device and under voltage trip gear are arranged on circuit breaker;
Fig. 2 illustrate have the circuit breaker that is applied to Fig. 1 morning secondary closure contact the structure of under voltage trip gear, wherein Fig. 2 (a) and 2 (b) are respectively trip unit and the stereogram of secondary closure osculating element early;
Fig. 3 illustrates the structure assembling of Fig. 1 peripheral operating grip device, and wherein Fig. 3 (a) is the exploded perspective view of whole device, and Fig. 3 (b) is the exploded perspective view of glide base in Fig. 3 (a);
Fig. 4 illustrates the mode of operation of the external operation handle device shown in Fig. 3, and wherein Fig. 4 (a) and 4 (b) illustrate respectively the state that handle is turned to opening and closing position;
Fig. 5 is the exterior perspective view of the state when the morning of Fig. 2, secondary closure osculating element was from being externally mounted to the external operation handle device of Fig. 3, and this external operation handle device is installed on circuit breaker;
Fig. 6 be removed in Fig. 5 morning secondary closure osculating element the exterior perspective view of use state;
Fig. 7 be illustrated in Fig. 5 morning secondary closure osculating element use state under lever operated, wherein Fig. 7 (a) illustrates the transition of handle position when the handle of external operation handle device turns to enable possition from off-position to 7 (d), and Fig. 7 (e) illustrates with Fig. 7 (a) to 7 (d) the corresponding transition to glide base, impeller, circuit breaker swinging handle and the operation that early secondary closure osculating element carries out respectively to 7 (h); And
Fig. 8 illustrates the structure of traditional use state that is installed on the external operation handle device on circuit breaker, wherein Fig. 8 (a) is side sectional view, Fig. 8 (b) is plane graph, and Fig. 8 (c) is the stereogram that the internal mechanism of external operation handle device is shown.
Embodiment
Below, based on Fig. 1 to Fig. 7, explain embodiments of the invention.In an embodiment, the member corresponding with member in Fig. 8 indicated identical symbol, and omits explanation.
First, Fig. 1 illustrates example of the present invention, and this example is to be arranged on external operation handle device and the under voltage trip gear on circuit breaker as servicing unit.In the accompanying drawings, the 1st, circuit breaker, this circuit breaker comprises the swinging handle 1e that is positioned at housing 1a top, the 2nd, external operation handle device, the 7th, the trip unit of under voltage trip gear, it is arranged in the housing 1a of circuit breaker 1 from inside, and 8 is secondary closure osculating elements morning of under voltage trip gear, it is removably from being externally mounted to the rear side of pedestal 3 of external operation handle device 2, and is arranged between pedestal 3 and circuit breaker 1.
At this, trip unit 7 is configured with tripping mechanism, and it comprises as shown in Fig. 2 (a) and is arranged on the electromagnet in box type unit housings, is similar to above-mentioned patent documentation 1.7a is the actuated piece relative with the tripping operation cross bar of circuit breaker, and this actuated piece is outstanding from unit housings, and 7b is release link.On the other hand, as shown in Fig. 2 (b), early secondary closure osculating element 8 comprises the 08a that is provided with secondary closure contact morning and the assembly that keeps the installation frame 8b of this limit switch 8a; Installation frame 8b comprises external connection terminals 8c, terminal screw 8d and a pair of supporting leg (card accessory) 8e projecting upwards from the two ends of installation frame 8b.
In addition, external operation handle device 2 has and the essentially identical structure of traditional external operation handle device shown in Fig. 8; Its concrete structure shown in Figure 3.That is, along the glide base 6 on straight line guiding and pedestal 3 supporting, operating grip device mounted externally, have the pin 6d standing in its upper surface side, this pin 6d mates and is connected to turning handle 4 via bolster 4a with the groove 4b-1 in rotating base 4b.In addition, cut out fenestra 6e, this fenestra is places little foursquare shape on larger side direction rectangle, and at the plate surface of glide base 6 inner opening, and, description below ground, in this fenestra 6e, be provided with impeller 6b and weak spring (wind spring) 6c, impeller 6b from open side by swinging handle 1e (referring to Fig. 1) institute of circuit breaker 1 relatively, and is set with the backlash with respect to glide base 6, and the weak spring impeller 6b that setovers from behind.In addition, play stop part effect and the cam path 6f of open and close above-mentioned morning of secondary closure osculating element 8 limit switch 8a (referring to Fig. 2 (b)) is formed in the side surface of glide base 6 along the direction of motion.
Fig. 4 (a) and 4 (b) illustrate the assembled state of external operation handle device 2; When turning handle 4 manually forwards opening and closing position to, the glide base 6 that is connected to handle 4 slides and moves along rectilinear direction, and as shown in Figure 8, the swinging handle 1e of circuit breaker 1 is driven into and opens and closes position.
In addition, Fig. 5 illustrates the use state (although not shown, the trip unit 7 of above-mentioned under voltage trip gear is arranged in the housing of circuit breaker from inside) that the secondary closure osculating element 8 morning of under voltage trip gear is additionally installed on the external operation handle device 2 being arranged on circuit breaker 1.At this, by being pressed into the mating holes 3e (referring to Fig. 1) of pedestal 3 inner openings of operating grip device 2 being externally arranged on supporting leg 8e in framework 8b from rear side, by morning secondary closure osculating element 8 cards join and removably engage.In addition,, under this assembled state, early the terminal 8c of secondary closure osculating element 8 is connected to the exciting circuit that is incorporated into the electromagnet coils in trip unit 7.On the other hand, Fig. 6 illustrates the use state in the housing that does not use secondary closure osculating element 8 early and trip unit 7 to be arranged on circuit breaker 1 from inside.
; by adopting, under voltage trip gear is divided into two selectable unit (SU)s, is trip unit 7 and the structure of secondary closure osculating element 8 early, the situation that there is no the under voltage trip gear of secondary closure contact function early adopting as option can be by inserting, set and use trip unit 7 and being directly suitable in the housing 1a of circuit breaker 1.
In addition, in the situation that this under voltage trip gear is provided with secondary closure contact morning function, by adding early secondary closure osculating element 8 and be installed on external operation handle device 2 as in Fig. 5, can be suitable for for thering is the early optional specification of the under voltage trip gear of secondary closure contact by simple means.
Below, closed osculating element 8 is installed under the use state on external operation handle device 2 in early days, and Fig. 7 is for explaining the transition of operation corresponding to lever operated morning of secondary closure contact.
First, the turning handle 4 that Fig. 7 (a) and 7 (e) illustrate external operation handle device 2 is parked in the state of off-position.Under this state, glide base 6 is parked on the left end of movement travel by the bias force of return spring 9 (tension coil springs), and in this position, between the rear end of the impeller 6b being setovered by spring 6c and the rear end at the fenestra 6e of glide base 6 split sheds, maintain backlash L1.In addition,, in this position, secondary closure osculating element 8 limit switch 8a morning being arranged on the side surface of glide base 6 is relative with the cam path 6f of glide base 6, and early secondary closure contact is closed.
When turning handle 4 is when from then on state starts to rotate (referring to Fig. 7 (b)) towards enable possition, by this rotation, driven glide base 6 starts to move right.In the case, just in the travel range after the motion corresponding to above-mentioned backlash L1 (referring to Fig. 7 (e)) starts, the swinging handle 1e adjacency of the impeller 6b being setovered by weak spring 6c from behind and circuit breaker, but swinging handle 1e keeps being parked in off-position, limit switch 8a deviates from from the cam path 6f of glide base 6, and secondary closure contact morning closed (open operation).Thus, by electric current, encouraged the coil that is combined in the electromagnet in trip unit 7 (referring to Fig. 2 (a)) of under voltage trip gear.
And, when turning handle 4 continues to rotate towards enable possition from the position of Fig. 7 (b), glide base 6 is pressed the swinging handle 1e with impeller 6b all-in-one-piece circuit breaker, and, in this movement travel midway, the elbow-bar mechanism (referring to Fig. 8) of the 1d of opened/closed mechanism of circuit breaker is carried out rapidly reverse operating.Thus, main circuit contact part bears bias force the closure of the ON/OFF spring of elbow-bar mechanism, and meanwhile, swinging handle 1e arrives the end of travel shown in Fig. 7 (e), and is parked in this enable possition.With L2, indicate in the accompanying drawings the swinging handle 1e operational stroke of this closed procedure of following main circuit contact part.
In addition,, when the swinging handle 1e of circuit breaker arrives enable possition, the turning handle 4 of external operation handle device 2 is crossed a little enable possition as shown in Fig. 7 (c), and after this surmounting, is parked in the enable possition of Fig. 7 (d).In addition, follow this operation of turning handle 4, glide base 6 and impeller 8b are parked in the position of Fig. 7 (h) through the position of Fig. 7 (g).Early the limit switch 8a of secondary closure osculating element 8 is even also held open state after the main circuit contact part closure of circuit breaker, and maintains the exciting current in the solenoid (referring to Fig. 2 (a)) being combined in trip unit 7.
As clearly visible from above-mentioned explaination, the under voltage trip gear of this embodiment is combined with trip unit 7 and secondary closure osculating element 8 early, and therefore can have with in the under voltage trip gear with secondary closure contact early described in patent documentation 2 identical operation and function.In addition, do not need in circuit breaker, to install described in patent documentation 2 and be connected to the early special-purpose turning handle of secondary closure contact, and, only by revise a little external operation handle device glide base and by above-mentioned morning secondary closure osculating element 8 additionally from being externally mounted to this external operation handle device, existing internally-arranged type under voltage trip gear (referring to patent documentation 1) can be used by original state, and can adapt to for thering is the early optional specification of the under voltage trip gear of secondary closure contact function by simple means.Thus, and previously compared, circuit breaker manufacturer can reduce the number as the optional product of preparing for the servicing unit of under voltage trip gear, and the cost of bearing in the stock of this product and management can reduce.
Industrial applicability
As mentioned above, in the servicing unit of circuit breaker of the present invention, the optional product relevant under voltage trip gear is divided into a plurality of unit and constructs in advance, and capable of being combined and use together with circuit breaker according to the unit of being selected by the optional specification of user's appointment, with can be by the applicable specification with specified variety of option of simple means.
Description of reference numerals
1 circuit breaker
1a circuit breaker base
1e swinging handle
2 external operation handle devices
3 pedestals
4 turning handles
6 glide bases
6b impeller
6c spring
6f cam path
7 trip units
8 secondary closure osculating elements early
8a limit switch
8b framework
8e supporting leg
Claims (3)
1. a servicing unit for circuit breaker, described circuit breaker has as the external operation handle device of described servicing unit and under voltage trip gear, it is characterized in that
Described under voltage trip gear is divided into two modules, and described two modules are to comprise the trip unit of tripping mechanism and comprise early secondary closure osculating element morning of secondary closure contact,
Described trip unit is arranged on from inside in the housing of described circuit breaker,
Described morning secondary closure osculating element from outer setting on described external operation handle device, thereby described morning, secondary closure contact was connected to the internal mechanism of described external operation handle device, and
Described morning, secondary closure contact was closed before the main circuit contact part closure midway and at described circuit breaker of the open operation process of described external operation handle device.
2. the servicing unit of circuit breaker as claimed in claim 1, is characterized in that, described external operation handle device comprises: be arranged on the pedestal on the described housing of described circuit breaker; Rotary type handle; Glide base, described glide base changes into rectilinear motion by the rotation of described handle and along the direction of opening and closing, drives the rock type handle of described circuit breaker; Impeller, described impeller is arranged on described glide base and is relative with described rock type handle from the direction of open operation; And, the spring of the described impeller of setovering from behind, described external operation handle device is configured with the backlash being set between described glide base and described impeller, and
In opening the process of described circuit breaker, described glide base is captured corresponding to the motion of described backlash, and makes described morning of the secondary closure contact of described morning of secondary closure osculating element carry out opened/closed operation.
3. the servicing unit of circuit breaker as claimed in claim 2, is characterized in that, secondary closure osculating element comprised and was provided with the limit switch of described morning of secondary closure contact and keeps described limit switch, have the assembly of the framework of terminal described morning, and
Described framework is removably on the pedestal of operating grip device mounted externally, and in the installation site of described framework, the operative end of described limit switch is connected to the described glide base of described external operation handle device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-276805 | 2009-12-04 | ||
| JP2009276805A JP5310513B2 (en) | 2009-12-04 | 2009-12-04 | Circuit breaker accessory |
| PCT/JP2010/006973 WO2011067922A1 (en) | 2009-12-04 | 2010-11-30 | Auxiliary device of circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102576632A CN102576632A (en) | 2012-07-11 |
| CN102576632B true CN102576632B (en) | 2014-07-23 |
Family
ID=44114784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080045254.5A Expired - Fee Related CN102576632B (en) | 2009-12-04 | 2010-11-30 | Auxiliary device of circuit breaker |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2509091B1 (en) |
| JP (1) | JP5310513B2 (en) |
| KR (1) | KR101258534B1 (en) |
| CN (1) | CN102576632B (en) |
| TW (1) | TWI390571B (en) |
| WO (1) | WO2011067922A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6123499B2 (en) * | 2013-06-04 | 2017-05-10 | 富士電機機器制御株式会社 | External circuit handle device for circuit breaker |
| DE102018201913A1 (en) * | 2018-02-07 | 2019-08-08 | Siemens Aktiengesellschaft | Module for a rotary drive of an electrical switch, electrical switch with such a module and method for switching an electrical switch |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384519A (en) * | 2001-04-27 | 2002-12-11 | 富士电机株式会社 | Undervoltage breaker unit with fast auxiliary switch for breaker |
| JP2003123613A (en) * | 2001-10-19 | 2003-04-25 | Fuji Electric Co Ltd | Shortage voltage tripping device having fast-in auxiliary switch of circuit breaker |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3503396B2 (en) | 1997-03-06 | 2004-03-02 | 三菱電機株式会社 | Circuit breaker |
| ITMI20011070A1 (en) * | 2001-05-22 | 2002-11-22 | Gewiss Spa | AUXILIARY DEVICE FOR MAGNETOTHERMAL SWITCH |
| JP3867541B2 (en) | 2001-10-09 | 2007-01-10 | 富士電機機器制御株式会社 | Switchgear |
| JP4215621B2 (en) * | 2003-11-17 | 2009-01-28 | 富士電機アセッツマネジメント株式会社 | External circuit handle device for circuit breaker |
| JP2007134148A (en) | 2005-11-10 | 2007-05-31 | Fuji Electric Fa Components & Systems Co Ltd | External operation handle device of circuit breaker |
| JP4735418B2 (en) * | 2006-05-29 | 2011-07-27 | 富士電機機器制御株式会社 | External circuit handle device for circuit breaker |
-
2009
- 2009-12-04 JP JP2009276805A patent/JP5310513B2/en not_active Expired - Fee Related
-
2010
- 2010-11-30 EP EP10834376.5A patent/EP2509091B1/en not_active Not-in-force
- 2010-11-30 CN CN201080045254.5A patent/CN102576632B/en not_active Expired - Fee Related
- 2010-11-30 WO PCT/JP2010/006973 patent/WO2011067922A1/en active Application Filing
- 2010-11-30 KR KR1020127008490A patent/KR101258534B1/en not_active IP Right Cessation
- 2010-12-03 TW TW099142141A patent/TWI390571B/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384519A (en) * | 2001-04-27 | 2002-12-11 | 富士电机株式会社 | Undervoltage breaker unit with fast auxiliary switch for breaker |
| JP2003123613A (en) * | 2001-10-19 | 2003-04-25 | Fuji Electric Co Ltd | Shortage voltage tripping device having fast-in auxiliary switch of circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102576632A (en) | 2012-07-11 |
| JP5310513B2 (en) | 2013-10-09 |
| JP2011119163A (en) | 2011-06-16 |
| TW201126558A (en) | 2011-08-01 |
| KR101258534B1 (en) | 2013-04-30 |
| EP2509091A1 (en) | 2012-10-10 |
| EP2509091B1 (en) | 2016-04-13 |
| KR20120058603A (en) | 2012-06-07 |
| EP2509091A4 (en) | 2014-12-10 |
| WO2011067922A1 (en) | 2011-06-09 |
| TWI390571B (en) | 2013-03-21 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20191130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |