CN102623257A - Trip alarm apparatus for small circuit breaker - Google Patents
Trip alarm apparatus for small circuit breaker Download PDFInfo
- Publication number
- CN102623257A CN102623257A CN2011100355185A CN201110035518A CN102623257A CN 102623257 A CN102623257 A CN 102623257A CN 2011100355185 A CN2011100355185 A CN 2011100355185A CN 201110035518 A CN201110035518 A CN 201110035518A CN 102623257 A CN102623257 A CN 102623257A
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- China
- Prior art keywords
- swivel plate
- place
- circuit breaker
- movable contactor
- bar
- 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.)
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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
- H01H71/128—Manual release or trip mechanisms, e.g. for test purposes
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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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- 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
- H01H71/505—Latching devices between operating and release mechanism
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- 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
- H01H73/04—Contacts
- H01H73/045—Bridging contacts
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- Breakers (AREA)
Abstract
The invention discloses a trip alarm apparatus for a small circuit breaker. The trip alarm apparatus comprises: a housing; input and output terminals; a normally closed contact terminal; a handle; a first lever; a first rotation plate which can respond to first lever movement rotation; a second rotation plate having a first position and a second position, wherein the second rotation plate is at the first position when the circuit breaker is at an ON or OFF position and at the second position when the circuit breaker executes a tripping action; a second lever which can move up and down in response to the rotation of the second rotation plate; a movable contactor which can be moved to a first position to contact with the normally closed contact terminal and a second position to respond to that the second rotation plate is in rotary contact with the output terminal; a conductive connector which is in contact with the input terminal when the movable contactor is positioned at the second position; an alarm starting spring which applies elastic force to make second rotation plate to rotate to the second position; a latch which can be rotated to a position where the second rotation plate is locked at the first position and a position where the second rotation plate is released.
Description
Technical field
The present invention relates to miniature circuit breaker, relate in particular to the tripping alarm device that is used for miniature circuit breaker.
Background technology
Miniature circuit breaker is a kind of electric equipment, is used for protecting circuit (circuit) and load equipment on the power circuit of building or lathe to avoid the influence such as fault currents such as overcurrent, short circuit currents.
The tripping alarm device that is used for miniature circuit breaker must have following function: when owing to the fault current that on power circuit, produces such as overcurrent or short circuit current makes circuit breaker trip (promptly; Automatically in the time of blocking-up), report to the police (warning) to apparatus of electrical monitoring equipment and manager: circuit breaker is owing to fault current trips.Only when being provided with said function, the manager can confirm the generation of tripping and solve the reason of corresponding failure electric current generation so that restart power supply.
The present invention relates to the tripping alarm device in the miniature circuit breaker.
In the miniature circuit breaker of prior art, when the tripping operation action that produces the tripping alarm signal, utilize the revolving force of the control crank of circuit breaker to drive the tripping alarm device.Yet the tripping alarm device that is used for miniature circuit breaker has the complex apparatus structure, and said device structure is used to make the rotation of handle and the action interlocking of warning device.Therefore, when interlocking, often produce defective, thereby can not guarantee the operating reliability of tripping alarm device.
In addition, the tripping alarm device that is used for the miniature circuit breaker of prior art has a kind of like this structure, and said structure makes the movable contactor that is constructed to leaf spring that the guiding path of circuit is provided.Therefore, when being to produce fault current on the power circuit, because movable contactor is overheated, leaf spring possibly lose elastic force, thereby makes the damage of movable contactor irrecoverable, and this can cause making the circuit handoff functionality to lose efficacy.
Summary of the invention
Therefore; In order to solve prior art problems; The scheme of describing in detail is to be provided for the tripping alarm device of miniature circuit breaker, and said tripping alarm device can provide simpler structure and improve operating reliability, and the tripping alarm device has compression spring.
Implement and the description of expansion property like this paper, in order to realize these and other advantage and according to the object of the invention, the tripping alarm device that is used for miniature circuit breaker comprises:
Shell, it is processed by electrical insulating material;
The alarm signal input terminal, it is fixed by shell;
Alarm signal output ends, it is fixed by shell;
Normally closed contact terminal, it is fixed by shell, and said normally closed contact terminal and alarm signal are irrespectively worked;
Control crank, it rotatably is supported on the shell place, and allows user's manual control miniature circuit breaker;
First bar, the one of which end is connected to control crank, and said first bar can move in response to the rotation of control crank in the horizontal direction forward or backward;
First swivel plate, it is connected to the other end of first bar, and said first swivel plate can rotate in response to moving forward or backward of first bar;
Second swivel plate; It is connected to first swivel plate coaxially, so that can on the direction identical with first swivel plate, rotate, said second swivel plate has the primary importance and the second place; When miniature circuit breaker is in ON position or user with control crank manual control to OFF position; Second swivel plate is positioned at the primary importance place, and when miniature circuit breaker was carried out the tripping operation action, second swivel plate was positioned at second place place;
Rotating shaft, it is constructed to axially support first swivel plate and second swivel plate, and when miniature circuit breaker tripped action, said rotating shaft rotated in a predetermined direction, so that first swivel plate and second swivel plate rotate in a predetermined direction;
Second bar, the one of which end is connected to the bottom of second swivel plate, and said second bar can move up and down in response to the rotation of second swivel plate;
Movable contactor; It is connected to the other end of second bar; And the place has contact at the one of which end, and said movable contactor can move to the primary importance and the second place, when miniature circuit breaker is in ON position or OFF position; Movable contactor can contact with normally closed contact terminal at the primary importance place; And when miniature circuit breaker tripped action, through the rotation of second swivel plate in response to said rotating shaft rotation, movable contactor can contact with alarm signal output ends at second place place;
Elecrical connector, it is connected to movable contactor so that can rotate with movable contactor, and when movable contactor was positioned at second place place, Elecrical connector contacted with input terminal;
Reporting to the police starts spring (alarm activating spring), and the one of which end is fixed by shell and the other end is connected to second swivel plate, and said warning starts spring and applies elastic force so that said second swivel plate rotates to the second place to second swivel plate; And
Breech lock, it can rotate to the position that second swivel plate is locked in the primary importance place, and discharges the position of second swivel plate through the thrust of first bar in miniature circuit breaker when action tripping operation.
The further scope of application of the application will become more obvious through the detailed description that hereinafter provides.Yet; It should be understood that; Describe in detail with concrete example and in expression the preferred embodiments of the present invention, only provide with illustrational mode; This is because to one skilled in the art, and various changes within the spirit and scope of the present invention and improvement will become obvious through detailed description.
Description of drawings
Included accompanying drawing provides further to be understood and is merged among the present invention and constitutes a part of the present invention of the present invention, and accompanying drawing illustrates the preferred embodiments of the present invention and is used for explaining principle of the present invention with specification.
In the accompanying drawings:
Fig. 1 is the longitudinal section of demonstration according to the OFF state of the tripping alarm device that is used for miniature circuit breaker of a preferred embodiment;
Fig. 2 is the longitudinal section of the operating state of the tripping alarm device that be used for miniature circuit breaker of demonstration when control crank is positioned at the ON position;
Fig. 3 for when control crank is arranged in the OFF position at the longitudinal section of the operating state of control crank, first bar, first swivel plate, second swivel plate and the breech lock of the tripping alarm device that is used for miniature circuit breaker; And
Fig. 4 is used for the longitudinal section of the tripping alarm device of miniature circuit breaker at the state of the process of accomplishing the tripping operation action for demonstration.
Embodiment
To provide description referring to figs. 1 through Fig. 4 now according to the details of the structure of preferred embodiment and action effect.
To shown in Figure 4, the tripping alarm device that is used for miniature circuit breaker can comprise like Fig. 1: shell 21, the input terminal 31 that is used for alarm signal, the lead-out terminal 32 that is used for alarm signal, normally closed contact terminal 33, control crank 22, first bar 27, first swivel plate 26, second swivel plate 24, rotating shaft 26a, second bar 29, movable contactor 30, Elecrical connector 30b, reporting to the police starts spring 35 and breech lock 25.
Shell 21 holds the parts of tripping alarm device.Shell 21 can be processed by electrical insulating material.
Lead-out terminal 32 can be fixing by shell 21, and more specifically, lead-out terminal 32 can be fixed by the bottom of the opposite side of shell 21.Lead-out terminal 32 can be configured to output alarm signal the path is provided.Lead-out terminal 32 can be processed by electric conducting material, so that for example the signal of telecommunication of voltage signal outputs to the outside.Lead-out terminal 32 can be constructed to electric-conductor, and an end of said electric-conductor is exposed to the outside, and extend so that can contact with said movable contactor 30 towards movable contactor 30 the other end of said electric-conductor.Lead-out terminal 32 also can comprise screw and the screw hole that is used to connect holding wire, and holding wire is carried alarm signal to monitoring panel that for example is connected to miniature circuit breaker (hereinafter being called circuit breaker) or system.Alarm signal can be used for monitoring accordingly in panel or the system, so that alarm lamp is luminous or start alarm buzzer.
Normally closed contact terminal 33 can be fixing by shell 21, and more specifically, normally closed contact terminal 33 can be fixed by the top of the opposite side of shell 21.Normally closed contact terminal 33 is the irrelevant terminals of alarm signal that tripped with the notice circuit breaker.Normally closed contact terminal 33 can be used as the load-side lead-out terminal of circuit breaker; Perhaps as the lead-out terminal of signal, said signal outputed to the display unit that is installed in the circuit breaker or outer monitoring panel or system in case notice circuit breaker is current under normal condition, works.
One end of first bar 27 can be connected to control crank 22.First bar 27 can move forward and backward in response to the rotation of control crank 22 in the horizontal direction.First bar 27 can have predetermined diameter and be constructed to the bonding jumper bar of shape picture letter " V " in a preferred embodiment.First bar 27 can be constructed to: make an end vertical curve of V-arrangement bonding jumper bar being inserted in the connection groove that is arranged in control crank 22 places, and make the other end vertical curve of V-arrangement bonding jumper to be inserted in the connection groove that is arranged in first swivel plate, 26 places.
Show that as Fig. 3 is concrete first swivel plate 26 can be the plate of shape picture letter " L ", it is connected to the other end of first bar 27, so that can rotate in response to moving forward or backward of first bar 27.With reference to Fig. 3; The top of first swivel plate 26 can be shown as has the connection groove; Said connection groove has an opening surface (the right surface among Fig. 3), so that the other end of first bar 27 can be inserted in the said connection groove or separate with the said groove that is connected.First swivel plate 26 can comprise that the spring at the place, right part that is formed on its downside supports protuberance (not providing Reference numeral).One end of back-moving spring (not shown) can support protuberance by spring and support.Back-moving spring can apply elastic force so that its initial position is got back in 26 rotations of first swivel plate to first swivel plate 26.
As shown in Figure 3, second swivel plate 24 can be the plate of shape picture letter " y ", and is connected to first swivel plate 26 coaxially through rotating shaft 26a.Second swivel plate 24 can rotate on the direction identical with first swivel plate 26 in response to the action of rotating shaft 26a.Second swivel plate 24 can have the primary importance and the second place; When circuit breaker is in ON state (so-called make position) or user control crank 22 is manually turned to OFF position (so-called disconnection or off-position); Said second swivel plate 24 is positioned at said primary importance place; When circuit breaker was carried out the tripping operation action, said second swivel plate 24 was positioned at said second place place.Second swivel plate 24 can comprise that as shown in Figure 1 being used to support the stop protuberance 24a that the spring of the other end that report to the police to start spring 35 supports protuberance 24b and the hook portion 25a place that is locked in breech lock 25 as shown in Figure 3, and an end of wherein said warning startup spring 35 is supported by shell 21.In a preferred embodiment, stop protuberance 24a can be semicircle protuberance, and said semicircle protuberance has the planar section and the remaining sweep at the hook portion 25a place that is locked in breech lock 25.
Rotating shaft 26a can axially support first swivel plate 26 and second swivel plate 24.Swivel plate 26a can rotate when circuit breaker trips action in a predetermined direction, so that first swivel plate 26 and second swivel plate 24 rotate in a predetermined direction.For revolving force is provided, rotating shaft 26a can be connected to known switching mechanism (not shown) in the field of circuit breakers.As everyone knows, switching mechanism comprise the tripping operation spring that is used to apply the tripping operation actuating force, be used to transmit the tripping operation actuating force of tripping operation spring last connecting rod and lower link, be connected to lower link so that can rotate to the rotor etc. of trip position.
Like Fig. 1, Fig. 2 and shown in Figure 4, an end of second bar 29 can be connected to the bottom of second swivel plate 24, and second bar 29 can move up and down in response to the rotation of second swivel plate 24.In other words, second bar 29 can move down when second swivel plate 24 rotates in the counterclockwise direction, and when second swivel plate 24 rotates in the clockwise direction, moves up.The other end of second bar 29 can be connected to movable contactor 30.
An end that report to the police to start spring 35 can be fixedly fastened on shell 21 places, and the other end can be connected to second swivel plate 24, thereby applies elastic force so that second swivel plate 24 rotates to the second place to second swivel plate 24.With reference to Fig. 1, Fig. 2 or Fig. 4; Start spring 35 in order to support to report to the police; Shell 21 can comprise and is used to support the support protuberance (not providing Reference numeral) of the left end that starts spring 35 of reporting to the police; And second swivel plate 24 can comprise that spring supports protuberance 24b, and the end hook that starts spring 35 of reporting to the police is sentenced supported at said spring support protuberance 24b.
The tripping alarm device that is used for miniature circuit breaker with this structure can further comprise compression spring 34.One end of compression spring 34 can be fixed on the shell 21 and the other end can be connected to movable contactor 30.According to a preferred embodiment; With reference to Fig. 1, Fig. 2 and Fig. 4; For abutment pressure spring 34, shell 21 can comprise spring base portion, and said spring base portion forms the shape of picture letter " U "; An end that is used for abutment pressure spring 34, and movable contactor 30 can comprise the spring brace groove (not shown) that is formed on below, its rear end.
When movable contactor 30 was positioned at second place place, compression spring 34 applied the elastic force as contact pressure to movable contactor 30, contacted constantly with lead-out terminal 32 to allow movable contactor 30.Cross the dead point when rotating to primary importance when movable contactor 30, compression spring 34 further applies elastic force to movable contactor 30, so that movable contactor 30 can rotate to and normally closed contact terminal 33 position contacting quickly.Breakover point is represented at said dead point, and the direction that is applied to the elastic force on the movable contactor 30 from compression spring 34 changes at said breakover point.The dead point can be corresponding to a position on the rotational trajectory between the second place and the primary importance of movable contactor 30.
The tripping alarm device that is used for miniature circuit breaker can further comprise as the assist handle 23 of the parts that are used to test actuation of an alarm and the 3rd bar 28 the two.
One end of the 3rd bar 28 can be connected to assist handle 23, and the other end can be connected to breech lock 25.The 3rd bar 28 can have predetermined diameter and be constructed to the bonding jumper bar of shape picture letter " V " in a preferred embodiment.The 3rd bar 28 can be constructed to: make an end vertical curve of V-arrangement bonding jumper bar being inserted in the connection groove that is arranged in assist handle 23 places, and make the other end vertical curve of V-arrangement bonding jumper bar to be inserted in the connection groove that is arranged in breech lock 25 places.
When the user rotates to the ann test position with assist handle 23 (; When rotating assist handle 23 on the counter clockwise direction in Fig. 1 to Fig. 4); The 3rd bar 28 is delivered to breech lock 25 with the revolving force of assist handle 23, so that breech lock 25 can rotate to the position that discharges second swivel plate 24.In other words, when the user rotated to the ann test position with assist handle 23, with reference to Fig. 3, the hook portion 25a of breech lock 25 was with breech lock 25 rotations, to discharge the stop protuberance 24a of second swivel plate 24.
Hereinafter, will the action of the tripping alarm device that is used for circuit breaker with this structure be described.
Corresponding action can comprise: the action the when user rotates to the ON position with control crank 22; Action when the user rotates to the OFF position with control crank 22; Owing to power circuit that circuit breaker is connected on action when producing fault current such as overcurrent or short circuit current and making circuit breaker move trip position; And the test action of tripping alarm device.
The first, the action in the time of will control crank 22 being rotated to the ON position to the user describes.
When the user rotated to ON position shown in Figure 2 with control crank 22 from position shown in Figure 1 in the clockwise direction, first bar 27 that an end is connected to control crank 22 reverse (that is, in the drawings towards the left side) in the horizontal direction moved.Therefore, top first swivel plate 26 that is connected to the other end of first bar 27 rotates based on rotating shaft 26a in the counterclockwise direction.With first swivel plate, 26 coaxial second swivel plates 24 that are connected also rotation in the counterclockwise direction.
In response to being rotated counterclockwise of second swivel plate 24, second bar 29 moves up, and correspondingly, and the movable contactor 30 that is connected to the lower end of second bar 29 keeps as shown in Figure 2 and normally closed contact terminal 33 state of contact.Here, with reference to Fig. 2, because Elecrical connector 30b is in the state that separates with input terminal 31, so the transmission of alarm signal is interrupted.Action when therefore, the user rotates to the ON position with control crank 22 is done.Report to the police startup spring 35 definite length extended with under the energy storage state that remains on the storage elasticity ability here.
The second, the action in the time of will control crank 22 being manipulated to the OFF position to the user describes.
When the user in the counterclockwise direction with control crank 22 from ON position shown in Figure 2 or when trip position shown in Figure 4 rotates to OFF position shown in Figure 1; First bar 27 that one end is connected to control crank 22 (that is, in the drawings towards the right side) preset distance that moves forward in the horizontal direction.First swivel plate 26 that top is connected to the other end of first bar 27 rotates predetermined angular in the clockwise direction based on rotating shaft 26a.Rotating shaft 26a also rotates predetermined angular in the clockwise direction, and coaxial second swivel plate 24 that is connected to first swivel plate 26 also rotates predetermined angular in the clockwise direction on rotating shaft 26a.Thereby with reference to Fig. 3, the hook portion 25a that the stop protuberance 24a of second swivel plate 24 is hooked in breech lock 25 sentences by stop, and this causes second swivel plate 24 to be locked in the primary importance place.Therefore, second swivel plate 24 and first the turning clockwise of swivel plate 26 are stopped.Therefore, through the elastic force of compression spring 34, the contact of movable contactor 30 be maintained at normally closed contact terminal 33 state of contact under.Report to the police startup spring 35 definite length extended with the storage elasticity ability here.
The 3rd, will to owing to power circuit that circuit breaker is connected on action when producing fault current such as overcurrent or short circuit current and making circuit breaker move trip position describe.
When with power circuit that circuit breaker is connected on when producing the fault current such as overcurrent or short circuit current, the tripping mechanism (not shown) is come trigger switch mechanism according to the detection of fault current, switching mechanism is carried out the tripping operation action of automatic shutdown circuit then.Here, be connected on the counter clockwise direction of rotating shaft 26a in predetermined direction is promptly schemed of switching mechanism and rotate, so that first swivel plate 26 and second swivel plate 24 are gone up rotation at predetermined direction (that is counterclockwise).Here, control crank 22 becomes the state that rotates a predetermined angular in the counterclockwise direction as shown in Figure 4 from the state that rotates a predetermined angular in ON position as shown in Figure 2 in the counterclockwise direction.Therefore, the other end of first bar 27 separates with the groove that is connected on first swivel plate 26, and promotes breech lock 25 then to discharge second swivel plate 24.Therefore the warning that is in extension state starts spring 35 shrinks with the release elastic energy, thereby second swivel plate 24 is rotated in the counterclockwise direction.Therefore, second bar 29 moves down, and makes the movable contactor 30 of the lower end that is connected to second bar 29 rotate the second place place that can contact with lead-out terminal 32 to be positioned in the counterclockwise direction thus.Here; With reference to Fig. 4; Elecrical connector 30b becomes and input terminal 31 state of contact, so that alarm signal can be delivered to outer monitoring panel or system from input terminal 31 via movable contactor 30, lead-out terminal 32 and the holding wire that is connected to lead-out terminal 32.Alarm signal can be used in and makes the luminous or startup alarm buzzer of alarm lamp.
The 4th, will the test action of tripping alarm system be described.
The tripping alarm device that is used for circuit breaker with these characteristics can comprise be used to test the device whether said tripping alarm device works under normal condition.Hereinafter, will test action that use corresponding device be described.
Under the state of second swivel plate 23 by breech lock 25 lockings; When user's grasping assist handle 23 so that said assist handle 23 rotate in the counterclockwise direction when carrying out ann test; Steering force (revolving force) is passed to breech lock 25 via the 3rd bar 28, so that breech lock 25 rotates to the position that discharges second swivel plate 24.In other words, when the user rotated to the ann test position with assist handle 23, with reference to Fig. 3, the hook portion 25a of breech lock 25 rotated with breech lock 25 in the clockwise direction, to discharge the stop protuberance 24a of second swivel plate 24.Therefore, the warning that is in elongation state starts spring 35 and shrinks to discharge elastic energy second swivel plate 24 is rotated in the counterclockwise direction.Therefore, second bar 29 moves down, and the movable contactor 30 of the lower end that is connected to second bar 29 is rotated in the counterclockwise direction, to be positioned at the second place that contacts with lead-out terminal 32.Here; With reference to Fig. 4; Elecrical connector 30b becomes and input terminal 31 state of contact, so that alarm signal can be passed to outer monitoring panel or system from input terminal 31 via movable contactor 30, lead-out terminal 32 and the holding wire that is connected to lead-out terminal 32.
Thereby; After assist handle 23 is rotated to the ann test position; If these that the action such as through the release of breech lock 25 and the startup spring 35 of reporting to the police is rotated counterclockwise second swivel plate 24, movable contactor 30 rotates to the second place and alarm signal is exported move all by normal execution, then the user can think that the tripping alarm device is in normal operating conditions.
And the rotating shaft of assist handle 23 is independent of the rotating shaft of control crank 22.Therefore, need not to cut off operate as normal or the abnormal work that power supply can be tested the tripping alarm device.
Previous embodiment and advantage only are exemplary and should not be construed as qualification of the present disclosure.This instruction can be easy to be applied to the device of other type.This specification is intended to exemplary, rather than the scope of restriction claim.To those skilled in the art, plurality of optional scheme, improvement and change all will be tangible.The characteristic of preferred embodiment described herein, structure, method and other characteristics can make up in many ways, so that obtain other and/or selectable preferred embodiment.
Because eigen can be implemented under the situation that does not depart from its characteristic in a variety of forms; It should also be understood that; Embodiment mentioned above is not limited by any details of aforementioned specification; Except as otherwise noted, and should be interpreted as to expansion property in accompanying claims institute restricted portion whole changes that the border of therefore dropping on claim and the equivalent arrangements of boundary or these borders and boundary are interior and improvement thereby be intended to comprised by appended claim.
Claims (4)
1. tripping alarm device that is used for miniature circuit breaker is characterized in that said device comprises:
Shell, it is processed by electrical insulating material;
The alarm signal input terminal, it is fixed by said shell;
Alarm signal output ends, it is fixed by said shell;
Normally closed contact terminal, it is fixed by said shell, and said normally closed contact terminal and alarm signal are irrespectively worked;
Control crank, it rotatably is supported on said shell place, and allows the said miniature circuit breaker of user's manual control;
First bar, the one of which end is connected to said control crank, and said first bar can move in response to the rotation of said control crank in the horizontal direction forward or backward;
First swivel plate, it is connected to the other end of said first bar, and said first swivel plate can rotate in response to moving forward or backward of said first bar;
Second swivel plate; It is connected to said first swivel plate coaxially, so that can on the direction identical with said first swivel plate, rotate, said second swivel plate has the primary importance and the second place; When said miniature circuit breaker is in ON position or user with said control crank manual control to OFF position; Said second swivel plate is positioned at the primary importance place, and when said miniature circuit breaker was carried out the tripping operation action, said second swivel plate was positioned at second place place;
Rotating shaft; It is constructed to axially support said first swivel plate and said second swivel plate; When said miniature circuit breaker tripped action, said rotating shaft rotated in a predetermined direction, so that said first swivel plate and said second swivel plate rotate up in said predetermined party;
Second bar, the one of which end is connected to the bottom of said second swivel plate, and said second bar can move up and down in response to the rotation of said second swivel plate;
Movable contactor; It is connected to the other end of said second bar; And the place has contact at the one of which end, and said movable contactor can move to the primary importance and the second place, when said miniature circuit breaker is in ON position or OFF position; Said movable contactor can contact with said normally closed contact terminal at the primary importance place; And when said miniature circuit breaker tripped action, through the rotation of second swivel plate in response to said rotating shaft rotation, said movable contactor can contact with the lead-out terminal of said alarm signal at second place place;
Elecrical connector, it is connected to said movable contactor so that can rotate with said movable contactor, and when said movable contactor was positioned at said second place place, said Elecrical connector contacted with input terminal;
Reporting to the police starts spring, and the one of which end is fixed by said shell and the other end is connected to said second swivel plate, and said warning starts spring and applies elastic force so that said second swivel plate rotates to the said second place to said second swivel plate; And
Breech lock, it can rotate to the position that said second swivel plate is locked in said primary importance place, and discharges the position of said second swivel plate through the thrust of said first bar in said miniature circuit breaker trip when action.
2. device according to claim 1, wherein, said breech lock comprises hook portion, said hook portion can rotate to the position of said second swivel plate of locking or discharge the position of said second swivel plate,
Wherein, said second swivel plate comprises the stop protuberance, and said stop protuberance is hooked in the said hook portion of said breech lock and sentences by stop.
3. device according to claim 1; Further comprise compression spring; One end of said compression spring is fixed by said shell and the other end is connected to said movable contactor; When said movable contactor was positioned at said second place place, said compression spring applied the elastic force as contact pressure to said movable contactor so that said movable contactor remain on said lead-out terminal state of contact under; And cross the dead point when rotating to the primary importance place when said movable contactor, said compression spring applies elastic force so that said movable contactor rotates to the contact position with said normally closed contact terminal quickly.
4. device according to claim 1 further comprises:
Assist handle, it is supported by the axle different with the rotating shaft of said control crank, and for the user device of said miniature circuit breaker being carried out ann test is provided; And
The 3rd bar; The one of which end is connected to said assist handle and the other end is connected to said breech lock; And said the 3rd bar is constructed to: when the user rotates to the ann test position with said assist handle; Said the 3rd bar is delivered to said breech lock with the revolving force of said assist handle, so that said breech lock rotates to the position that discharges said second swivel plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110035518.5A CN102623257B (en) | 2011-01-28 | 2011-01-28 | Trip alarm apparatus for small circuit breaker |
| KR1020110045325A KR101144585B1 (en) | 2011-01-28 | 2011-05-13 | Trip alarm mechanism for small circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110035518.5A CN102623257B (en) | 2011-01-28 | 2011-01-28 | Trip alarm apparatus for small circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102623257A true CN102623257A (en) | 2012-08-01 |
| CN102623257B CN102623257B (en) | 2014-10-29 |
Family
ID=46271840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110035518.5A Expired - Fee Related CN102623257B (en) | 2011-01-28 | 2011-01-28 | Trip alarm apparatus for small circuit breaker |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101144585B1 (en) |
| CN (1) | CN102623257B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330725A (en) * | 2014-10-22 | 2015-02-04 | 南京工程学院 | Sound and light alarm device for substation circuit breaker fault tripping |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945774B (en) * | 2012-11-08 | 2015-02-25 | 张继龙 | Small circuit breaker |
| CN109509690B (en) * | 2017-09-14 | 2024-04-12 | 浙江正泰电器股份有限公司 | Linkage mechanism of breaker and side-mounted auxiliary contact |
| CN108511280B (en) * | 2018-06-04 | 2024-05-07 | 浙江德菱科技股份有限公司 | Miniature circuit breaker with power-taking switch node |
| CN112349559A (en) * | 2019-08-07 | 2021-02-09 | 北京人民电器厂有限公司 | Contact system, load switch and information processing system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88103427A (en) * | 1987-06-09 | 1988-12-28 | 梅兰日兰公司 | A kind of operating mechanism of miniature circuit breaker |
| US6229414B1 (en) * | 1999-08-04 | 2001-05-08 | Fuji Electric Co., Ltd. | Make-and-break mechanism for circuit breaker |
| JP2002056763A (en) * | 2000-08-10 | 2002-02-22 | Tempearl Ind Co Ltd | Circuit breaker |
| CN101226857A (en) * | 2007-11-27 | 2008-07-23 | Tcl低压电器(无锡)有限公司 | Shunt release with indicated function |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08250007A (en) * | 1995-03-15 | 1996-09-27 | Mitsubishi Electric Corp | Single pole circuit breaker |
| KR100266405B1 (en) * | 1998-03-26 | 2000-09-15 | 이종수 | Circuit breaker |
-
2011
- 2011-01-28 CN CN201110035518.5A patent/CN102623257B/en not_active Expired - Fee Related
- 2011-05-13 KR KR1020110045325A patent/KR101144585B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88103427A (en) * | 1987-06-09 | 1988-12-28 | 梅兰日兰公司 | A kind of operating mechanism of miniature circuit breaker |
| US6229414B1 (en) * | 1999-08-04 | 2001-05-08 | Fuji Electric Co., Ltd. | Make-and-break mechanism for circuit breaker |
| JP2002056763A (en) * | 2000-08-10 | 2002-02-22 | Tempearl Ind Co Ltd | Circuit breaker |
| CN101226857A (en) * | 2007-11-27 | 2008-07-23 | Tcl低压电器(无锡)有限公司 | Shunt release with indicated function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330725A (en) * | 2014-10-22 | 2015-02-04 | 南京工程学院 | Sound and light alarm device for substation circuit breaker fault tripping |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102623257B (en) | 2014-10-29 |
| KR101144585B1 (en) | 2012-05-09 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20210128 |