CN102623257B - Trip alarm apparatus for small circuit breaker - Google Patents
Trip alarm apparatus for small circuit breaker Download PDFInfo
- Publication number
- CN102623257B CN102623257B CN201110035518.5A CN201110035518A CN102623257B CN 102623257 B CN102623257 B CN 102623257B CN 201110035518 A CN201110035518 A CN 201110035518A CN 102623257 B CN102623257 B CN 102623257B
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- CN
- 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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Classifications
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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 for miniature circuit breaker.
Background technology
Miniature circuit breaker is a kind of electric equipment, avoids the impact such as the fault current such as overcurrent, short circuit current for the protection of the circuit in building or on the power circuit of lathe (circuit) and load equipment.
Must there is following function for the tripping alarm device of miniature circuit breaker: when owing to producing and making circuit breaker trip (such as the fault current of overcurrent or short circuit current on power circuit, automatically blocking-up) time, report to the police (warning) to apparatus of electrical monitoring equipment and manager: circuit breaker is because fault current trips.Only, in the time being provided with described function, manager can determine the generation of tripping operation and solve the reason of corresponding failure electric current generation to restart power supply.
The present invention relates to the tripping alarm device in miniature circuit breaker.
In the miniature circuit breaker of prior art, in the time of the tripping operation action that produces tripping alarm signal, utilize the revolving force of the control crank of circuit breaker to drive tripping alarm device.But, thering is complicated device structure for the tripping alarm device of miniature circuit breaker, described device structure is for making the rotation of handle and the action of warning device interlocking.Therefore, in the time of interlocking, often produce defect, thereby can not guarantee the operating reliability of tripping alarm device.
In addition, have so a kind of structure for the tripping alarm device of the miniature circuit breaker of prior art, the movable contactor that described structure makes to be constructed to leaf spring provides the guiding path of circuit.Therefore, while being to produce fault current on power circuit, because movable contactor is overheated, leaf spring may lost its bounce, thereby makes the damage of movable contactor irrecoverable, and this can cause making circuit handoff functionality to lose efficacy.
Summary of the invention
Therefore, in order to solve the problem of prior art, the scheme of describing in detail is to be provided for the tripping alarm device of miniature circuit breaker, and described tripping alarm device can provide more simply structure and raising operating reliability, and tripping alarm device has compression spring.
As implemented herein and the description of expansion property, in order to realize the advantage of these and other and according to object of the present invention, to comprise for the tripping alarm device of miniature circuit breaker:
Shell, it is made up of electrical insulating material;
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 described normally closed contact terminal and alarm signal are independently worked;
Control crank, it is rotatably supported on shell place, and allows user's manual control miniature circuit breaker;
The first bar, its one end is connected to control crank, and described the first bar can move in the horizontal direction forward or backward in response to the rotation of control crank;
The first swivel plate, it is connected to the other end of the first bar, and described the first swivel plate can rotate in response to moving forward or backward of the first bar;
The second swivel plate, it is connected to the first swivel plate coaxially, to can rotate up in the side identical with the first swivel plate, described the second swivel plate has primary importance and the second place, when miniature circuit breaker in ON position or user by control crank manual control during to OFF position, the second swivel plate is positioned at primary importance place, and in the time that miniature circuit breaker is carried out tripping operation action, the second swivel plate is positioned at second place place;
Rotating shaft, it is constructed to axially support the first swivel plate and the second swivel plate, and in the time that miniature circuit breaker trips action, described rotating shaft rotates in a predetermined direction, so that the first swivel plate and the second swivel plate rotate in a predetermined direction;
The second bar, its one end is connected to the bottom of the second swivel plate, and described the second bar can move up and down in response to the rotation of the second swivel plate;
Movable contactor, it is connected to the other end of the second bar, and there is contact at its one end place, described movable contactor can move to primary importance and the second place, when miniature circuit breaker is in ON position or when OFF position, movable contactor can contact with normally closed contact terminal at primary importance place, and in the time that miniature circuit breaker trips action, rotation by the second swivel plate in response to described rotating shaft rotation, movable contactor can contact with alarm signal output ends at second place place;
Elecrical connector, it is connected to movable contactor to can rotate together with movable contactor, and in the time that movable contactor is positioned at second place place, Elecrical connector contacts with input terminal;
Report to the police and start spring (alarm activating spring), its one end is fixed by shell and the other end is connected to the second swivel plate, and described warning starts spring and applies elastic force so that described the second swivel plate rotates to the second place to the second swivel plate; And
Breech lock, it can rotate to the position that the second swivel plate is locked in to primary importance place, and in the time of miniature circuit breaker tripping operation action, discharges the position of the second swivel plate by the thrust of the first bar.
The further scope of application of the application will become more obvious by the detailed description below providing.But, it should be understood that, describe in detail with concrete example and only provide in illustrational mode in representing the preferred embodiments of the present invention, this is that various changes and improvements within the spirit and scope of the present invention will become obvious by describing in detail because to one skilled in the art.
Brief description of the drawings
Included accompanying drawing provides further to be understood and is merged in the present invention and forms a part of the present invention of the present invention, and accompanying drawing illustrates the preferred embodiments of the present invention and be used for explaining principle of the present invention together with specification.
In the accompanying drawings:
Fig. 1 shows according to the longitudinal section of the OFF state of the tripping alarm device for miniature circuit breaker of a preferred embodiment;
Fig. 2 is the longitudinal section that shows the operating state of the tripping alarm device for miniature circuit breaker in the time that control crank is positioned at ON position;
Fig. 3 is the longitudinal section in the operating state of control crank, the first bar, the first swivel plate, the second swivel plate and the breech lock of the tripping alarm device for miniature circuit breaker in the time that control crank is arranged in OFF position; And
Fig. 4 shows for the tripping alarm device of miniature circuit breaker complete the longitudinal section of state of process of tripping operation action.
Embodiment
Provide according to the description of the details of the structure of preferred embodiment and action effect now with reference to Fig. 1 to Fig. 4.
As shown in Figures 1 to 4, can comprise for the tripping alarm device of miniature circuit breaker: shell 21, for the input terminal 31 of alarm signal, lead-out terminal 32 for alarm signal, normally closed contact terminal 33, control crank 22, the first bar 27, the first swivel plate 26, the second swivel plate 24, rotating shaft 26a, the 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 made up of electrical insulating material.
Input terminal 31 can be fixed by shell 21, and more specifically, input terminal 31 can be fixed by the top of a side of shell 21, thinks that receiving external alarm signal provides path.Here, alarm signal can be for example voltage signal from external power source.Therefore, input terminal 31 can be made up of electric conducting material, for receiving from the outside signal of telecommunication.Input terminal 31 can be constructed to electric-conductor, and an end of described electric-conductor is exposed to outside, and extend to can contact with movable contactor 30 towards movable contactor 30 the other end of described electric-conductor.Input terminal 31 also can comprise screw and the screw hole for connecting holding wire, and holding wire is carried the alarm signal from external alarm signal source.
Lead-out terminal 32 can be fixed 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 path is provided.Lead-out terminal 32 can be made up of electric conducting material, to the signal of telecommunication of for example voltage signal is outputed to outside.Lead-out terminal 32 can be constructed to electric-conductor, and an end of described electric-conductor is exposed to outside, and extend to can contact with described movable contactor 30 towards movable contactor 30 the other end of described electric-conductor.Lead-out terminal 32 also can comprise screw and the screw hole for connecting holding wire, and holding wire is carried alarm signal to the monitoring panel or the system that are for example connected to miniature circuit breaker (hereinafter referred to circuit breaker).Alarm signal can be used for monitoring accordingly in panel or system, so that alarm lamp is luminous or start alarm buzzer.
Normally closed contact terminal 33 can be fixed 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 notice circuit breaker.Normally closed contact terminal 33 can be used as the load-side lead-out terminal of circuit breaker, or as the lead-out terminal of signal, described signal be output to the display unit that is arranged in circuit breaker or outer monitoring panel or system in case notice circuit breaker is current under normal condition, works.
Control crank 22 can rotatably support and allow user's manual switchover circuit breaker by shell 21.
One end of the first bar 27 can be connected to control crank 22.The first bar 27 can move forward and backward in the horizontal direction in response to the rotation of control crank 22.The first bar 27 can have predetermined diameter and be constructed in a preferred embodiment the bonding jumper bar of shape picture letter " V ".The first bar 27 can be constructed to: make an end vertical curve of V-arrangement bonding jumper bar to be inserted in the connecting 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 connecting groove that is arranged in the first swivel plate 26 places.
Show as Fig. 3 is concrete, the first swivel plate 26 can be the plate of shape picture letter " L ", and it is connected to the other end of the first bar 27, to can rotate in response to the first moving forward or backward of bar 27.With reference to Fig. 3, the top of the first swivel plate 26 can be shown as has connecting groove, described connecting groove has an opening surface (the right surface in Fig. 3), separates so that the other end of the first bar 27 can be inserted in described connecting groove or with described connecting groove.The first swivel plate 26 can comprise the spring supporting protuberance (not providing Reference numeral) at the right part place that is formed on its downside.One end of back-moving spring (not shown) can be supported by spring supporting protuberance.Back-moving spring can apply elastic force so that its initial position is got back in the first swivel plate 26 rotations to the first swivel plate 26.
As shown in Figure 3, the second swivel plate 24 can be the plate of shape picture letter " y ", and is connected to coaxially the first swivel plate 26 by rotating shaft 26a.The second swivel plate 24 can rotate up in the side identical with the first swivel plate 26 in response to the action of rotating shaft 26a.The second swivel plate 24 can have primary importance and the second place, when circuit breaker is in the time that control crank 22 is manually turned to OFF position (so-called disconnection or off-position) by ON state (so-called make position) or user, described the second swivel plate 24 is positioned at described primary importance place, in the time that circuit breaker is carried out tripping operation action, described the second swivel plate 24 is positioned at described second place place.The second swivel plate 24 can comprise as shown in Figure 1 for supporting the spring supporting protuberance 24b of the other end and the stop protuberance 24a at the hook portion 25a place that is locked in breech lock 25 as shown in Figure 3 that report to the police and start spring 35, one 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 described semicircle protuberance has 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 the first swivel plate 26 and the second swivel plate 24.Swivel plate 26a can rotate in a predetermined direction in the time that circuit breaker trips action, so that the first swivel plate 26 and the 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 field of circuit breakers.As everyone knows, switching mechanism comprise tripping operation spring for applying tripping operation actuating force, for transmit tripping operation spring tripping operation actuating force upper connecting rod and lower link, be connected to lower link to can rotate to the rotor etc. of trip position.
As shown in Figure 1, Figure 2 and Figure 4, one end of the second bar 29 can be connected to the bottom of the second swivel plate 24, and the second bar 29 can move up and down in response to the rotation of the second swivel plate 24.In other words, the second bar 29 can move down in the time that the second swivel plate 24 rotates in the counterclockwise direction, and moves up in the time that the second swivel plate 24 rotates in the clockwise direction.The other end of the second bar 29 can be connected to movable contactor 30.
Movable contactor 30 can be connected to the other end of the second bar 29.Movable contactor 30 can (that is, front end, that is to say, the left end in Fig. 1) locate to have contact in its one end, and movable contactor 30 is made up of electric conducting material.Movable contactor 30 is movable to primary importance and the second place, when circuit breaker is in ON position or when control crank 22 is manually turned to OFF position to user, described movable contactor 30 can contact with normally closed contact terminal 33 at described primary importance place, and in the time that circuit breaker trips action, in the time that the second swivel plate 24 rotates in response to the rotation of rotating shaft 26a, described movable contactor 30 can contact with the lead-out terminal 32 of alarm signal at described second place place.Movable contactor 30 is because its rear end (, the right-hand member in Fig. 1) is by being supported and can be moved (rotation) by the fixing rotating shaft 30a of shell 21.
Elecrical connector 30b can be connected to movable contactor 30, to can move up in identical side together with movable contactor 30.Elecrical connector 30b can be constructed to the electric-conductor such as copper or iron.Elecrical connector 30b can integrally extend from movable contactor 30.As selection, Elecrical connector 30b can be by the connecting elements such as rivet or by being welded to connect to movable contactor 30.In the time that movable contactor 30 is positioned at second place place, Elecrical connector 30b can contact with input terminal 31, and in the time that movable contactor 30 is positioned at primary importance place, described Elecrical connector 30b separates with input terminal 31.
Reporting to the police starts one end of spring 35 and can be fixedly fastened on shell 21 places, and the other end can be connected to the second swivel plate 24, thereby applies elastic force so that the second swivel plate 24 rotates to the second place to the 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 the support protuberance (not providing Reference numeral) of the left end for supporting the startup spring 35 of reporting to the police, and the second swivel plate 24 can comprise spring supporting protuberance 24b, one end of the startup spring 35 of reporting to the police is hooked in described spring supporting protuberance 24b and sentences supported.
Breech lock 25 can be rotated to primary importance so that the second swivel plate 24 is locked in to primary importance place, and can be rotated to the second place with by discharge the second swivel plate 24 from the thrust of the first bar 27 in circuit breaker trip when action.Breech lock 25 can comprise hook portion 25a, and described hook portion 25a can be rotated to the position of locking the second swivel plate 24 or discharges the position of the second swivel plate 24.For breech lock 25 is rotated, hook portion 25a can have axle receiving opening, and described axle receiving opening forms through the rearward end of described hook portion 25a, for receiving the back shaft (not shown) being fixed on shell 21.Breech lock 25 can comprise bar connecting portion (not providing Reference numeral), and described bar connecting portion extends and is connected with the 3rd bar 28 that hereinafter will illustrate from the upper surface of the rear end of hook portion 25a.Bar connecting portion can also comprise bar connecting groove (not providing Reference numeral), and the crooked end of the 3rd bar 28 is inserted in described bar connecting groove.With reference to Fig. 3, as the parts corresponding with the hook portion 25a of breech lock 25, the second swivel plate 24 can comprise stop protuberance 24a, and the hook portion 25a that described stop protuberance 24a is hooked in breech lock 25 sentences and is stopped.
The tripping alarm device for miniature circuit breaker with this structure can further comprise compression spring 34.One end of compression spring 34 can be fixed on 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, described spring base portion is formed as the shape of picture letter " U ", for one end of abutment pressure spring 34, and movable contactor 30 can comprise the spring supporting groove (not shown) that is formed on below, its rear end.
In the time that movable contactor 30 is positioned at second place place, compression spring 34 applies the elastic force as contact to movable contactor 30, to allow movable contactor 30 to contact constantly with lead-out terminal 32.Cross dead point while 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 the position contacting with normally closed contact terminal 33 quickly.Described dead point represents breakover point, and the direction that is applied to the elastic force on movable contactor 30 from compression spring 34 changes at described breakover point.Dead point can be corresponding to a position on the rotational trajectory between the second place and primary importance of movable contactor 30.
For the tripping alarm device of miniature circuit breaker can further comprise as the assist handle 23 of the parts for testing actuation of an alarm and the 3rd bar 28 the two.
Assist handle 23 can be supported by the rotating shaft different from the rotating shaft of control crank 22, so that two handles 23 and 22 rotate independently of one another.Assist handle 23 can provide manipulation means, and user can carry out by assist handle the ann test of circuit breaker.
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 in a preferred embodiment the bonding jumper bar of shape picture letter " V ".The 3rd bar 28 can be constructed to: make one end vertical curve of V-arrangement bonding jumper bar to be inserted in the connecting 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 connecting groove that is arranged in breech lock 25 places.
In the time that assist handle 23 is rotated to ann test position by user (, in the time rotating assist handle 23 in the counter clockwise direction in Fig. 1 to Fig. 4), the revolving force of assist handle 23 is delivered to breech lock 25 by the 3rd bar 28, so that breech lock 25 can rotate to the position that discharges the second swivel plate 24.In other words, in the time that assist handle 23 is rotated to ann test position by user, with reference to Fig. 3, the hook portion 25a of breech lock 25 rotates together with breech lock 25, to discharge the stop protuberance 24a of the second swivel plate 24.
Hereinafter, will the action of the tripping alarm device for circuit breaker with this structure be described.
Corresponding action can comprise: action when control crank 22 is rotated to ON position by user; Action when control crank 22 is rotated to OFF position by user; Owing to producing the action while making circuit breaker move trip position such as the fault current of overcurrent or short circuit current on the power circuit being connected with circuit breaker; And the test action of tripping alarm device.
The first, the action when user is rotated to ON position by control crank 22 describes.
In the time that user rotates to the ON position shown in Fig. 2 by control crank 22 from the position shown in Fig. 1 in the clockwise direction, one end is connected to the first bar 27 oppositely (, in the drawings towards left side) movement in the horizontal direction of control crank 22.Therefore the first swivel plate 26 that, top is connected to the other end of the first bar 27 rotates in the counterclockwise direction based on rotating shaft 26a.With coaxial the second swivel plate 24 being connected of the first swivel plate 26 also rotation in the counterclockwise direction.
In response to being rotated counterclockwise of the second swivel plate 24, the second bar 29 moves up, and correspondingly, the movable contactor 30 that is connected to the lower end of the second bar 29 keeps the state contacting with normally closed contact terminal 33 as shown in Figure 2.Here, with reference to Fig. 2, due to the state of Elecrical connector 30b in separating with input terminal 31, therefore the transmission of alarm signal is interrupted.Therefore action when, control crank 22 is rotated to ON position by user is done.Here, report to the police and start spring 35 definite length extended to remain under the energy storage state of storage elasticity energy.
The second, the action when user is manipulated to OFF position by control crank 22 describes.
In the time that user rotates to the OFF position shown in Fig. 1 by control crank 22 from the ON position shown in Fig. 2 or from the trip position shown in Fig. 4 in the counterclockwise direction, the first bar 27 that one end is connected to control crank 22 moves forward (, in the drawings towards right side) preset distance in the horizontal direction.The first swivel plate 26 that top is connected to the other end of the 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 the second swivel plate 24 that is coaxially connected to the first swivel plate 26 on rotating shaft 26a also rotates predetermined angular in the clockwise direction.Thereby with reference to Fig. 3, the hook portion 25a that the stop protuberance 24a of the second swivel plate 24 is hooked in breech lock 25 sentences and is stopped, this causes the second swivel plate 24 to be locked in primary importance place.Therefore, the second swivel plate 24 and the first turning clockwise of swivel plate 26 are stopped.Therefore,, by the elastic force of compression spring 34, the contact of movable contactor 30 is maintained under the state contacting with normally closed contact terminal 33.Here, report to the police and start spring 35 definite length extended with storage elasticity energy.
The 3rd, by because the action producing while making circuit breaker move trip position such as the fault current of overcurrent or short circuit current on the power circuit being connected with circuit breaker describes.
In the time producing such as the fault current of overcurrent or short circuit current on the power circuit being connected with circuit breaker, tripping mechanism (not shown) is come trigger switch mechanism according to the detection of fault current, and switching mechanism is carried out the tripping operation action of automatic shutdown circuit then.Here, the rotating shaft 26a that is connected to switching mechanism rotates in the counter clockwise direction in figure at predetermined direction, to make the first swivel plate 26 and the second swivel plate 24 in the upper rotation of predetermined direction (, counterclockwise).Here, the state that control crank 22 rotates a predetermined angular in the counterclockwise direction from the ON position as shown in Figure 2 becomes the state that rotates in the counterclockwise direction as shown in Figure 4 a predetermined angular.Therefore, the other end of the first bar 27 separates with the connecting groove on the first swivel plate 26, then promotes breech lock 25 to discharge the second swivel plate 24.Therefore warning in extension state starts spring 35 shrinks to discharge elasticity energy, thereby the second swivel plate 24 is rotated in the counterclockwise direction.Therefore, the second bar 29 moves down, and makes thus the movable contactor 30 of the lower end that is connected to the second bar 29 rotate to be in the counterclockwise direction positioned at the second place place that can contact with lead-out terminal 32.Here, with reference to Fig. 4, Elecrical connector 30b becomes the state contacting with input terminal 31, 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 make alarm lamp luminous or start alarm buzzer.
The 4th, will the test action of tripping alarm system be described.
The tripping alarm device for circuit breaker with these features can comprise the device of whether working under normal condition for testing described tripping alarm device.Hereinafter, will the test action that use corresponding device be described.
Under the state being locked by breech lock 25 at the second swivel plate 23, when user grasps assist handle 23 so that described assist handle 23 rotates while carrying out ann test in the counterclockwise direction, 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 the second swivel plate 24.In other words,, in the time that assist handle 23 is rotated to ann test position by user, with reference to Fig. 3, the hook portion 25a of breech lock 25 is rotation in the clockwise direction together with breech lock 25, to discharge the stop protuberance 24a of the second swivel plate 24.Therefore, the startup of the warning in elongation state spring 35 shrinks to discharge elasticity energy and the second swivel plate 24 is rotated in the counterclockwise direction.Therefore, the second bar 29 moves down, and makes thus the movable contactor 30 of the lower end that is connected to the second bar 29 rotate in the counterclockwise direction, to be positioned at the second place contacting with lead-out terminal 32.Here, with reference to Fig. 4, Elecrical connector 30b becomes the state contacting with input terminal 31, 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 ann test position, if the action such as the release by breech lock 25 and the startup spring 35 of reporting to the police is rotated counterclockwise the second swivel plate 24, movable contactor 30 rotates to the second place and these actions of alarm signal output are all normally carried out, user can think that 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, can test normal work or the abnormal work of tripping alarm device without cutting off to power.
Previous embodiment and advantage are only exemplary and should not be construed as restriction of the present disclosure.This instruction can be easy to be applied to the device of other type.This specification is intended to exemplary, instead of the scope of restriction claim.To those skilled in the art, plurality of optional scheme, improvement and change will be all obvious.Feature, structure, method and other characteristics of preferred embodiment described herein can combine in many ways, to obtain other and/or selectable preferred embodiment.
Because eigen can be implemented in a variety of forms in the situation that not departing from its characteristic, 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 claims limited range, therefore drop on the whole changes and improvements in the border of claim and the equivalent arrangements of boundary or these borders and boundary thereby be intended to be comprised by appended claim.
Claims (4)
1. for a tripping alarm device for miniature circuit breaker, it is characterized in that, described device comprises:
Shell, it is made up of electrical insulating material;
Alarm signal input terminal, it is fixed by described shell;
Alarm signal output ends, it is fixed by described shell;
Normally closed contact terminal, it is fixed by described shell, and described normally closed contact terminal and alarm signal are independently worked;
Control crank, it is rotatably supported on described shell place, and miniature circuit breaker described in permission user manual control;
The first bar, its one end is connected to described control crank, and described the first bar can move in the horizontal direction forward or backward in response to the rotation of described control crank;
The first swivel plate, it is connected to the other end of described the first bar, and described the first swivel plate can rotate in response to described moving forward or backward of the first bar;
The second swivel plate, it is connected to described the first swivel plate coaxially, to can rotate up in the side identical with described the first swivel plate, described the second swivel plate has primary importance and the second place, when described miniature circuit breaker in ON position or user by described control crank manual control during to OFF position, described the second swivel plate is positioned at primary importance place, and in the time that described miniature circuit breaker is carried out tripping operation action, described the second swivel plate is positioned at second place place;
Rotating shaft, it is constructed to axially support described the first swivel plate and described the second swivel plate, in the time that described miniature circuit breaker trips action, described rotating shaft rotates in a predetermined direction, so that described the first swivel plate and described the second swivel plate rotate up in described predetermined party;
The second bar, its one end is connected to the bottom of described the second swivel plate, and described the second bar can move up and down in response to the rotation of described the second swivel plate;
Movable contactor, it is connected to the other end of described the second bar, and there is contact at its one end place, described movable contactor can move to primary importance and the second place, when described miniature circuit breaker is in ON position or when described control crank is manually turned to OFF position to user, described movable contactor can contact with described normally closed contact terminal at primary importance place, and in the time that described miniature circuit breaker trips action, rotation by the second swivel plate in response to described rotating shaft rotation, described movable contactor can contact with the lead-out terminal of described alarm signal at second place place,
Elecrical connector, it is connected to described movable contactor to can rotate together with described movable contactor, and in the time that described movable contactor is positioned at described second place place, described Elecrical connector contacts with input terminal;
Report to the police and start spring, its one end is fixed by described shell and the other end is connected to described the second swivel plate, and described warning starts spring and applies elastic force so that described the second swivel plate rotates to the described second place to described the second swivel plate; And
Breech lock, it can rotate to the position that described the second swivel plate is locked in to described primary importance place, and in the time that described miniature circuit breaker trips action, discharges the position of described the second swivel plate by the thrust of described the first bar.
2. device according to claim 1, wherein, described breech lock comprises hook portion, described hook portion can rotate to the position of described the second swivel plate of locking or discharge the position of described the second swivel plate,
Wherein, described the second swivel plate comprises stop protuberance, and the described hook portion that described stop protuberance is hooked in described breech lock is sentenced and is stopped.
3. device according to claim 1, further comprise compression spring, one end of described compression spring is fixed by described shell and the other end is connected to described movable contactor, in the time that described movable contactor is positioned at described second place place, described compression spring applies the elastic force as contact to described movable contactor, so that described movable contactor remains under the state contacting with described lead-out terminal, and cross dead point while rotating to primary importance place when described movable contactor, described compression spring applies elastic force so that described movable contactor rotates to and the contact position of described normally closed contact terminal quickly.
4. device according to claim 1, further comprises:
Assist handle, it is supported by the axle different from the rotating shaft of described control crank, and provides the device of described miniature circuit breaker being carried out to ann test for user; And
The 3rd bar, its one end is connected to described assist handle and the other end is connected to described breech lock, and described the 3rd bar is constructed to: in the time that described assist handle is rotated to ann test position by user, the revolving force of described assist handle is delivered to described breech lock by described the 3rd bar, so that described breech lock rotates to the position that discharges described the 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 CN102623257A (en) | 2012-08-01 |
| CN102623257B true CN102623257B (en) | 2014-10-29 |
Family
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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) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945774B (en) * | 2012-11-08 | 2015-02-25 | 张继龙 | Small circuit breaker |
| 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 |
| 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 (3)
| 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 |
| 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 (3)
| 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 |
| JP4499890B2 (en) * | 2000-08-10 | 2010-07-07 | テンパール工業株式会社 | 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 (3)
| 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 |
| CN101226857A (en) * | 2007-11-27 | 2008-07-23 | Tcl低压电器(无锡)有限公司 | Shunt release with indicated function |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2002-56763A 2002.02.22 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101144585B1 (en) | 2012-05-09 |
| CN102623257A (en) | 2012-08-01 |
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