CN106981404B - Accessory of circuit breaker - Google Patents
Accessory of circuit breaker Download PDFInfo
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- CN106981404B CN106981404B CN201710355743.4A CN201710355743A CN106981404B CN 106981404 B CN106981404 B CN 106981404B CN 201710355743 A CN201710355743 A CN 201710355743A CN 106981404 B CN106981404 B CN 106981404B
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- circuit breaker
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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
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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
- H01H71/24—Electromagnetic mechanisms
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- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The invention relates to an accessory of a circuit breaker, which is used for the circuit breaker and comprises an accessory main body, a functional component and a wiring terminal connected with the functional component through a lead, wherein the accessory main body comprises an accessory shell, an accessory handle and a linkage component which are sequentially connected in a transmission way, a microswitch mounting position, a magnetic trip coil mounting position and a circuit board mounting position are arranged in the accessory shell, and the functional component consists of at least one of a microswitch arranged at the microswitch mounting position and a circuit board arranged at the circuit board mounting position and a magnetic trip coil arranged at the magnetic trip coil mounting position or consists of a microswitch arranged at the microswitch mounting position. Compared with the prior art, the invention has the advantages of high integration degree, strong expansibility, low cost and convenient installation through modular design.
Description
Technical Field
The invention relates to the field of circuit breakers, in particular to an accessory of a circuit breaker.
Background
In some applications, it is necessary to add some accessories to the circuit breaker to extend the functionality of the circuit breaker. Currently, the more common circuit breaker accessories are: undervoltage (or overvoltage) trips, shunt trips, and auxiliary contacts, wherein the auxiliary contacts may be single auxiliary contacts or dual auxiliary contacts including both normally open and normally closed contacts. These accessories can sometimes be mounted inside the circuit breaker; however, in the case of a small-sized circuit breaker, these accessories are often mounted outside the circuit breaker, connected to each other by a linkage rod assembly, and linked to a mechanism inside the circuit breaker.
In the prior art, each accessory is often an independent module with a single function and packaged independently, and when a plurality of functions need to be expanded on a circuit breaker, a plurality of accessories need to be installed, so that the defects of large occupied space and high cost are caused.
The accessories of the circuit breaker are used as derived supplements of the functions of the circuit breaker, control means are added for the circuit breaker, the protection function is enlarged, the application range of the circuit breaker is wider, the protection function is more complete, the operation and installation modes are more, and at present, the accessories of the circuit breaker become an integral important part of the circuit breaker.
Disclosure of Invention
The object of the present invention is to overcome the above-mentioned drawbacks of the prior art by providing an accessory for a circuit breaker.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides an annex of circuit breaker for the circuit breaker, includes annex main part, functional unit and the binding post of being connected through the wire with functional unit, annex main part include annex casing and transmission connection's annex handle and linkage assembly, annex handle rotate with the annex casing and be connected to the handle transmission through gangbar and circuit breaker at the during operation is connected, be equipped with micro-gap switch installation position, magnetism trip coil installation position and circuit board installation position in the annex casing, functional unit constitute at the magnetism trip coil of magnetism trip coil installation position by setting up at the micro-gap switch of micro-gap switch installation position and setting up at least one in the circuit board of circuit board installation position and setting up, or constitute by the micro-gap switch who sets up at micro-gap switch installation position.
As a preferred implementation mode, the accessory shell is in a shape like a Chinese character 'tu', the interior of the accessory shell is composed of an upper space and a lower space, the linkage assembly is arranged in the upper space, the wiring terminals are arranged at two ends of the lower space, the microswitch mounting positions are arranged in the lower space and are positioned below the linkage assembly, the magnetic trip coil mounting positions are arranged at one side of the linkage assembly, and the circuit board mounting positions are arranged in the lower space.
As a preferred embodiment, the linkage assembly is consistent with a linkage assembly of a circuit breaker, and comprises:
the moving contact support frame is rotatably arranged on the accessory shell;
the support piece is rotatably arranged on the accessory shell and positioned on the upper part of the moving contact support frame, the rotating shaft is coaxial with the rotating shaft of the moving contact support frame, and the support piece is connected with the moving contact support frame through a torsional spring;
the jump buckle is rotatably arranged on the support piece through a jump buckle rotating shaft and is provided with a first combination structure;
the lock catch is rotatably arranged on the supporting piece through a lock catch rotating shaft and is provided with a second combination structure, and the jump buckle rotating shaft, the lock catch rotating shaft and the rotating shaft of the supporting piece are not overlapped;
one end of the reset elastic piece is connected with the lock catch, and the other end of the reset elastic piece is in contact with the accessory shell and used for keeping the lock catch at a position capable of being combined with the jump buckle;
one end of the breaking elastic element is connected with the moving contact support frame, and the other end of the breaking elastic element is connected with the accessory shell;
one section of the connecting rod is connected with the accessory handle, and the other end of the connecting rod is connected with the jump buckle and is used for driving the jump buckle to rotate when the accessory handle rotates;
when the switch is switched on, the drive shaft drives the accessory handle to rotate, the accessory handle pulls the trip buckle to rotate through the connecting rod, the first combination structure on the trip buckle is combined with the second combination structure on the lock catch, the trip buckle and the lock catch pull the support piece to rotate together after combination, the support piece drives the moving contact support frame to rotate through the torsion spring, at the moment, the disjunction elastic piece stores energy, the reset elastic piece rotates along with the lock catch and is separated from the accessory shell;
during the separating brake, the drive shaft drives the accessory handle to rotate reversely, the accessory handle pulls the jump buckle to rotate through the connecting rod, the first combination structure on the jump buckle is separated from the second combination structure on the lock catch, the acting force of the jump buckle and the lock catch on the support disappears, the acting force given to the moving contact support frame by the support disappears through the torsional spring, the separated elastic part releases energy, the moving contact support frame is pushed to rotate, the reset elastic part rotates to be in contact with the accessory shell along with the lock catch, and the lock catch is kept at a position capable of being combined with the jump buckle.
As a further preferred embodiment, the moving contact support frame is provided with a moving contact, the moving contact is driven to act when the moving contact support frame rotates, and the moving contact support frame and the moving contact are detachably connected, or are connected by welding, or are integrally formed by injection molding.
As a preferred embodiment, the functional component is composed of a microswitch arranged at a microswitch mounting position, and the microswitch is in transmission connection with the movable contact.
As another preferred embodiment, the functional component is composed of a microswitch arranged at a microswitch mounting position and a magnetic trip coil arranged at a magnetic trip coil mounting position, the microswitch is in transmission connection with the movable contact, and the magnetic trip coil is in transmission connection with a latch arranged on the linkage component.
As another preferred embodiment, the functional component is composed of a microswitch arranged at a microswitch mounting position, a circuit board arranged at a circuit board mounting position, and a magnetic trip coil arranged at a magnetic trip coil mounting position, the microswitch is in transmission connection with the moving contact, the magnetic trip coil is in transmission connection with a latch arranged on the linkage component, and the circuit board is provided with an undervoltage module, an overvoltage module or an overvoltage undervoltage module.
As a preferred embodiment, an action arm is arranged at an operation button of the micro switch, one end of the action arm is connected with the micro switch, the other end of the action arm is connected with an obliquely upward tilting part, the bottom of the moving contact is in a hook shape, and the outer side surface of the hook-shaped bottom is in contact connection with the tilting part.
As a preferred embodiment, the functional component is composed of a circuit board arranged at a circuit board mounting position and a magnetic trip coil arranged at a magnetic trip coil mounting position, the magnetic trip coil is in transmission connection with a lock catch arranged on the linkage component, and the circuit board is provided with an undervoltage module, an overvoltage module or an overvoltage and undervoltage module.
As a preferred implementation mode, the accessory handle and the handle of the circuit breaker are both provided with linkage rod mounting holes, and two ends of the linkage rod are provided with connecting parts used for being inserted into the linkage rod mounting holes.
Compared with the prior art, the invention has the following beneficial effects:
(1) the modular design has strong expansibility and low cost. The invention adopts an accessory main body similar to the breaker, and reserves the installation positions of the components necessary for realizing the required functions in the main body to form a modular accessory, and different functions are realized by installing different components in the modular accessory and connecting the components through wires. Particularly, the accessory shell is consistent with the appearance size of the circuit breaker, the accessory handle is consistent with the handle of the circuit breaker, even the linkage assembly is consistent with the linkage assembly of the circuit breaker, after the accessory and the circuit breaker are assembled together, the appearance is attractive, operators can observe conveniently, partial components of the existing circuit breaker can be utilized, the assembly efficiency is improved, and the cost is reduced.
(2) When the circuit breaker is connected with the accessory, the connecting part of the linkage rod is directly inserted into the two handles, so that the circuit breaker is convenient and simple and does not have different directions.
(3) The moving contact is used for triggering the microswitch, and a metal part is not needed, so that the moving contact and the moving contact support frame can be integrally formed through injection molding, the structure is simplified on the basis of utilizing the linkage assembly of the existing circuit breaker, and the reliable transmission of the action is realized.
(4) When the functional component is composed of the circuit board arranged at the circuit board mounting position and the magnetic tripping coil arranged at the magnetic tripping coil mounting position, the functions of an undervoltage tripper, an overvoltage tripper or an overvoltage undervoltage tripper can be realized according to the difference of modules possessed by the circuit board, and a moving contact is not needed at the moment, so that the functional component and the moving contact can be omitted on the basis of utilizing the linkage component of the existing circuit breaker, the structure is further simplified, and the reliable transmission of the action is realized.
Drawings
FIG. 1 is a schematic view of the internal structure of the accessory in a fully functional state according to the present invention;
FIG. 2 is a schematic top view of the attachment of the present invention;
FIG. 3 is a schematic structural diagram of a linkage according to the present invention;
FIG. 4 is a schematic view of the microswitch of the present invention;
fig. 5 is a schematic view of the internal structure of the accessory in the shunt trip plus state indication functional state of the invention;
fig. 6 is a schematic diagram of the internal structure of the accessory in the functional states of the undervoltage release, the overvoltage release and the undervoltage release of the present invention;
FIG. 7 is a schematic diagram of the internal structure of the accessory in the status indicating function status according to the present invention;
FIG. 8 is a schematic structural diagram of the linkage assembly in a fully functional state according to the present invention.
In the figure, 1 is an accessory housing, 11 is an upper space, 12 is a lower space, 2 is an accessory handle, 3 is a linkage assembly, 35 is a driving shaft, 351 is a connecting rod, 38 is a movable contact support frame, 39 is a support member, 390 is a torsion spring, 391 is a jump buckle, 3910 is a first combination structure, 392 is a lock catch, 3920 is a second combination structure, 93 is a breaking elastic member, 394 is a jump buckle rotating shaft, 395 is a lock catch rotating shaft, 4 is a movable contact, 5 is a wiring terminal, 6 is a microswitch, 61 is an action arm, 62 is a tilting part, 7 is a magnetic trip coil, 8 is a circuit board, 9 is a linkage rod, and 91 is a connecting part.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example 1
An accessory of a circuit breaker is disclosed, as shown in figure 1, the accessory is used for the circuit breaker and comprises an accessory main body, a functional component and a wiring terminal connected with the functional component through a wire, wherein the accessory main body comprises an accessory shell 1, an accessory handle 2 and a linkage component 3 which are connected in sequence in a transmission manner, the accessory handle 2 is rotatably connected with the accessory shell 1 and is connected with a handle of the circuit breaker through a linkage rod 9 in a transmission manner when working, linkage rod mounting holes are formed in the accessory handle 2 and the handle of the circuit breaker, connecting parts 91 used for being inserted into the linkage rod mounting holes are arranged at two ends of the linkage rod 9, the accessory shell 1 is consistent with the appearance size of the circuit breaker, the accessory handle 2 is consistent with the handle of the circuit breaker, a micro switch mounting position, a magnetic trip coil mounting position and a circuit board mounting position are arranged in the accessory shell, and the functional component is provided with at least one of a micro switch 6 arranged at the micro switch mounting position and the magnetic trip coil 7 is arranged at the magnetic trip coil mounting position, or the microswitch 6 is arranged at the microswitch mounting position. The accessory housing 1 in this embodiment is in a shape like a Chinese character 'tu', and is internally composed of an upper space 11 and a lower space 12, the linkage assembly 3 is arranged in the upper space 11, the connection terminals 5 are arranged in a plurality and distributed at two ends of the lower space 12, the microswitch mounting position is arranged in the lower space 12 and below the linkage assembly 3, the magnetic trip coil mounting position is arranged at one side of the linkage assembly 3, and the circuit board mounting position is arranged in the lower space 12.
In this embodiment, different functions can be implemented according to different configurations of the functional components, which is specifically shown in table 1:
TABLE 1
In table 1, x indicates that the member is not included, and v indicates that the member is included.
In the invention, when the full functions in the table 1 are to be realized (see figure 1, the functional components are composed of a microswitch 6 arranged at a microswitch mounting position, a circuit board 8 arranged at a circuit board mounting position and a magnetic trip coil 7 arranged at a magnetic trip coil mounting position, the microswitch 6 is in transmission connection with a movable contact 4, the magnetic trip coil 7 is in transmission connection with a lock 392 arranged on a linkage component 3, the circuit board 8 is provided with an undervoltage module, an overvoltage module or an overvoltage and undervoltage module), a state indication function (see figure 7, the functional components are composed of the microswitch 6 arranged at the microswitch mounting position, the microswitch 6 is in transmission connection with the movable contact 4), a shunt release + state indication function (see figure 5, the functional components are composed of the microswitch 6 arranged at the microswitch mounting position and the magnetic trip coil 7 arranged at the magnetic trip coil mounting position, the movable contact 6 is in transmission connection with the movable contact 4, magnetic trip coil 7 is drivingly connected to a catch 392 disposed on linkage assembly 3), linkage assembly 3 may be identical to the linkage assembly of the circuit breaker, for example, using a structure identical to the linkage structure of chinese patent application 201610780990.4, including:
a moving contact support 38, which is rotatably arranged on the moving contact support 38 of the accessory shell 1 and is provided with a moving contact 4;
the supporting element 39 is rotatably installed on the accessory housing 1 and is positioned at the upper part of the movable contact supporting frame 38, the rotating shaft is coaxial with the rotating shaft of the movable contact supporting frame 38, and the supporting element 39 is connected with the movable contact supporting frame 38 through a torsion spring 390;
a jumper 391 rotatably mounted on the support 39 by a jumper pivot 394, having a first coupling structure 3910;
a lock 392 rotatably mounted on the support 39 via a lock rotating shaft 395, having a second coupling structure 3920, and the rotating shafts of the jump lock rotating shaft 394, the lock rotating shaft 395 and the support 39 do not coincide with each other;
a return elastic member having one end connected to the catch 392 and the other end contacting the accessory housing 1, for holding the catch 392 at a position where it can be combined with the jump catch 391;
one end of the breaking elastic member 393 is connected with the moving contact support frame 38, and the other end of the breaking elastic member 393 is connected with the accessory shell 1;
one section of the connecting rod 351 is connected with the accessory handle 2, and the other end of the connecting rod is connected with the jump button 391 and is used for driving the jump button 391 to rotate when the accessory handle 2 rotates;
when the switch is closed, the driving shaft 35 drives the accessory handle 2 to rotate, the accessory handle 2 pulls the trip buckle 391 to rotate through the connecting rod 351, the first combination structure 3910 on the trip buckle 391 is combined with the second combination structure 3920 on the lock buckle 392, after combination, the trip buckle 391 and the lock buckle 392 pull the support piece 39 to rotate together, the support piece 39 drives the movable contact support frame 38 to rotate through the torsion spring 390, and then the movable contact 4 is driven to swing, at the moment, the breaking elastic piece 393 stores energy, the resetting elastic piece rotates along with the lock buckle 392 and is separated from the accessory shell 1;
during opening, the driving shaft 35 drives the accessory handle 2 to rotate reversely, the accessory handle 2 pulls the trip button 391 to rotate through the connecting rod 351, the first combining structure 3910 on the trip button 391 is disengaged from the second combining structure 3920 on the lock 392, the acting force of the trip button 391 and the lock 392 on the support 39 disappears, the acting force given to the movable contact support frame 38 by the support 39 through the torsion spring 390 also disappears, at the moment, the breaking elastic piece 393 releases energy to push the movable contact support frame 38 to rotate, the movable contact 4 swings and resets, the resetting elastic piece rotates along with the lock 392 to be in contact with the accessory housing 1, and the lock 392 is kept at a position capable of being combined with the trip button 391.
The movable contact support 38 in this embodiment is detachably connected to the movable contact 4, or connected by welding, or integrally formed by injection molding. An action arm 61 is arranged at the operating button of the microswitch 6, one end of the action arm 61 is connected with the microswitch 6, the other end is connected with an upward tilted tilting part 62, the bottom of the movable contact 4 is in a hook shape, and the outer side surface of the hook-shaped bottom is in contact connection with the tilting part 62.
In the invention, when the under-voltage release function, the overvoltage release function or the under-voltage release function is to be realized, the functional component consists of the circuit board 8 arranged at the circuit board mounting position and the magnetic release coil 7 arranged at the magnetic release coil mounting position, and a moving contact is not required to be in transmission connection with the microswitch, so that the moving contact can be omitted, as shown in fig. 6.
The functional descriptions in table 1 are as follows:
(1) status indication function: referring to fig. 7, when the handle is switched on, the movable contact 4 is separated from the microswitch 6, and an action signal is output; when the breaker is opened or tripped, the movable contact 4 pushes the microswitch 6 to act.
(2) Undervoltage release function: referring to fig. 6, the accessory switching on and off operation has the same state indication function, the circuit board 8 has an under-voltage module, and when the circuit board 8 receives an under-voltage signal, the magnetic trip coil 7 is driven to push the trip button 391 to trip the circuit breaker.
(3) Overvoltage release function: referring to fig. 6, the accessory switching on and off operation has the same state indication function, the circuit board 8 has an overvoltage module, and when the circuit board 8 receives an overvoltage signal, the magnetic trip coil 7 is driven to push the trip button 391 to trip the circuit breaker.
(4) Overvoltage and undervoltage release functions: referring to fig. 6, the accessory switching on and off operation has the same state indication function, the circuit board 8 has an overvoltage and undervoltage module, and when the circuit board 8 receives an overvoltage or undervoltage signal, the magnetic tripping coil 7 is driven to push the tripping button 391 to trip the circuit breaker.
(5) The shunt release has the functions: the accessory brake closing and opening action has the same state indicating function, and when the magnetic tripping coil 7 is electrified, the tripping button 391 is pushed to act to trip the circuit breaker.
(6) Shunt release function + state indication function: as shown in fig. 5, the accessory has the same state indication function of switching on and off, and when the magnetic trip coil 7 is electrified, the trip action is pushed to trip the circuit breaker.
(7) Shunt release function + cross undervoltage release function + state indication function: referring to fig. 1, the accessory switching on and off operation has the same state indication function, and when the magnetic trip coil 7 is electrified, the tripping button 391 is pushed to act to trip the circuit breaker; the circuit board 8 has an overvoltage and undervoltage module (as an example, in a full-function state, an undervoltage tripping function, an overvoltage tripper function, or an overvoltage and undervoltage tripper function can be realized according to the difference of the modules of the circuit board), and when the circuit board 8 receives an overvoltage or undervoltage signal, the magnetic tripping coil 7 is driven to push the tripping button 391 to operate, so that the circuit breaker is tripped.
Claims (9)
1. An accessory of a circuit breaker, which is used for the circuit breaker, comprises an accessory main body, a functional component and a wiring terminal (5) connected with the functional component through a lead, the accessory main body comprises an accessory shell (1), an accessory handle (2) and a linkage component (3) which are in transmission connection, the accessory handle (2) is rotationally connected with the accessory shell (1) and is in transmission connection with the handle of the circuit breaker through a linkage rod (9) when in work, it is characterized in that a microswitch mounting position, a magnetic trip coil mounting position and a circuit board mounting position are arranged in the accessory shell, the functional component consists of at least one of a microswitch (6) arranged at the microswitch mounting position and a circuit board (8) arranged at the circuit board mounting position and a magnetic trip coil (7) arranged at the magnetic trip coil mounting position, or consists of the microswitch (6) arranged at the microswitch mounting position;
the linkage assembly (3) is consistent with the linkage assembly of the circuit breaker, and comprises:
a moving contact support frame (38) rotatably mounted on the accessory housing (1);
the supporting piece (39) is rotatably arranged on the accessory shell (1) and is positioned at the upper part of the movable contact supporting frame (38), the rotating shaft is coaxial with the rotating shaft of the movable contact supporting frame (38), and the supporting piece (39) is connected with the movable contact supporting frame (38) through a torsion spring (390);
a jumper (391) rotatably mounted on the support (39) by a jumper rotation shaft (394) and having a first coupling structure (3910);
a lock (392) rotatably mounted on the support (39) by a lock rotating shaft (395) and having a second coupling structure (3920), wherein the rotating shafts of the jump lock rotating shaft (394), the lock rotating shaft (395) and the support (39) do not overlap each other;
the reset elastic piece is connected with the lock catch (392) at one end and is in contact with the accessory shell (1) at the other end, and is used for keeping the lock catch (392) at a position capable of being combined with the jump buckle (391);
one end of the breaking elastic part (393) is connected with the moving contact support frame (38), and the other end of the breaking elastic part is connected with the accessory shell (1);
one end of the connecting rod (351) is connected with the accessory handle (2), and the other end of the connecting rod is connected with the jump button (391) and is used for driving the jump button (391) to rotate when the accessory handle (2) rotates;
when the switch is switched on, the driving shaft (35) drives the accessory handle (2) to rotate, the accessory handle (2) pulls the trip buckle (391) to rotate through the connecting rod (351), the first combination structure (3910) on the trip buckle (391) is combined with the second combination structure (3920) on the lock catch (392), after combination, the trip buckle (391) and the lock catch (392) pull the support piece (39) to rotate together, the support piece (39) drives the moving contact support frame (38) to rotate through the torsion spring (390), at the moment, the disjunction elastic piece (393) stores energy, the reset elastic piece rotates along with the lock catch (392) and is separated from the accessory shell (1);
when the brake is switched off, the driving shaft (35) drives the accessory handle (2) to rotate reversely, the accessory handle (2) pulls the jump buckle (391) to rotate through the connecting rod (351), the first combination structure (3910) on the jump buckle (391) is disengaged from the second combination structure (3920) on the lock catch (392), the acting force of the jump buckle (391) and the lock catch (392) on the support piece (39) disappears, the acting force given to the moving contact support frame (38) by the support piece (39) through the torsion spring (390) also disappears, at the moment, the breaking elastic piece (393) releases energy, the support frame moving contact (38) is pushed to rotate, the resetting elastic piece rotates along with the lock catch (392) to be in contact with the accessory shell (1), and the lock catch (392) is kept at a position capable of being combined with the jump buckle (391).
2. The accessory of the circuit breaker according to claim 1, wherein the accessory housing (1) is in a shape of a Chinese character 'tu', the interior of the accessory housing is composed of an upper space (11) and a lower space (12), the linkage assembly (3) is arranged in the upper space (11), the connection terminals (5) are arranged in a plurality and distributed at two ends of the lower space (12), the microswitch mounting position is arranged in the lower space (12) and located below the linkage assembly (3), the magnetic trip coil mounting position is arranged at one side of the linkage assembly (3), and the circuit board mounting position is arranged in the lower space (12).
3. The accessory of the circuit breaker according to claim 1, wherein the moving contact (4) is disposed on the moving contact support frame (38), the moving contact (4) is driven to move when the moving contact support frame (38) rotates, and the moving contact support frame (38) is detachably connected to the moving contact (4), or connected to the moving contact (4) by welding, or integrally formed by injection molding.
4. An accessory of a circuit breaker according to claim 3, characterized in that said functional assembly is constituted by a microswitch (6) arranged in a microswitch mounting position, said microswitch (6) being in driving connection with the movable contact (4).
5. The accessory of the circuit breaker according to claim 3, characterized in that the functional component is composed of a microswitch (6) arranged at a microswitch mounting position and a magnetic trip coil (7) arranged at a magnetic trip coil mounting position, wherein the microswitch (6) is in transmission connection with the movable contact (4), and the magnetic trip coil (7) is in transmission connection with a latch (392) arranged on the linkage component (3).
6. The accessory of the circuit breaker according to claim 3, characterized in that the functional component comprises a microswitch (6) arranged at a microswitch mounting position, a circuit board (8) arranged at a circuit board mounting position and a magnetic trip coil (7) arranged at a magnetic trip coil mounting position, wherein the microswitch (6) is in transmission connection with the movable contact (4), the magnetic trip coil (7) is in transmission connection with a latch (392) arranged on the linkage component (3), and the circuit board (8) is provided with an undervoltage module, an overvoltage module or an overvoltage and undervoltage module.
7. The accessory of the circuit breaker according to any one of claims 4 to 6, wherein an operating button of the micro switch (6) is provided with an operating arm (61), one end of the operating arm (61) is connected with the micro switch (6), the other end of the operating arm is connected with an upward tilted tilting part (62), the bottom of the movable contact (4) is in a hook shape, and the outer side surface of the hook-shaped bottom is in contact connection with the tilting part (62).
8. The accessory of the circuit breaker according to claim 1, characterized in that the functional component comprises a circuit board (8) arranged at a circuit board mounting position and a magnetic trip coil (7) arranged at a magnetic trip coil mounting position, the magnetic trip coil (7) is in transmission connection with a latch (392) arranged on the linkage component (3), and the circuit board (8) is provided with an undervoltage module, an overvoltage module or an overvoltage and undervoltage module.
9. The accessory of the circuit breaker as claimed in claim 1, wherein the handle of the accessory (2) and the handle of the circuit breaker are both provided with linkage rod mounting holes, and both ends of the linkage rod (9) are provided with connecting portions (91) for being inserted into the linkage rod mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710355743.4A CN106981404B (en) | 2017-05-19 | 2017-05-19 | Accessory of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710355743.4A CN106981404B (en) | 2017-05-19 | 2017-05-19 | Accessory of circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106981404A CN106981404A (en) | 2017-07-25 |
| CN106981404B true CN106981404B (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710355743.4A Active CN106981404B (en) | 2017-05-19 | 2017-05-19 | Accessory of circuit breaker |
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| US5117210A (en) * | 1991-02-11 | 1992-05-26 | General Electric Company | Molded case circuit breaker field-installable accessories |
| CN101540244B (en) * | 2008-03-21 | 2013-05-29 | 浙江加西亚电子电器有限公司 | Tripping device |
| CN102376498B (en) * | 2010-08-24 | 2014-02-26 | 上海电科电器科技有限公司 | Auxiliary alarm switch |
| CN206961768U (en) * | 2017-05-19 | 2018-02-02 | 德力西电气有限公司 | The annex of breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2696105Y (en) * | 2004-05-18 | 2005-04-27 | 天津市百利低压电器有限公司 | Plastic casing circuit breaker capable of assembling with multiple attachment |
| CN2840317Y (en) * | 2005-11-16 | 2006-11-22 | 保定市蓝博电子电器有限公司 | Special low-voltage circuit breaker for fire fighting |
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| CN106981404A (en) | 2017-07-25 |
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