CN201622987U - Breaker with side sucking plastic outer shell - Google Patents
Breaker with side sucking plastic outer shell Download PDFInfo
- Publication number
- CN201622987U CN201622987U CN2009203189382U CN200920318938U CN201622987U CN 201622987 U CN201622987 U CN 201622987U CN 2009203189382 U CN2009203189382 U CN 2009203189382U CN 200920318938 U CN200920318938 U CN 200920318938U CN 201622987 U CN201622987 U CN 201622987U
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- contact
- handle
- shell
- mould
- moving contact
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Abstract
The utility model relates to a breaker, in particular to a breaker with a side sucking plastic outer shell. The utility model mainly solves the technical problems that a trip and a buckle of the existing breaker are not convenient to contact, accidents are not easy to happen because the driving speed is not fast when a moving contact touches or trips a static contact, and the like. The breaker with a side sucking plastic outer shell comprises a plastic shell. A leading-in terminal and a leading-out terminal are connected to the plastic shell. The leading-in terminal is connected with a static contact, and the leading-out terminal is communicated with an inductance coil. A static iron core is arranged in the inductance coil. One side of the static iron core contacts a gag bit. A gag bit spring is connected between the gag bit and the plastic shell. The gag bit contacts a lock catch through a tow rod. The leading-out terminal is communicated with the static contact. The plastic shell is movably connected with a handle. A toggle sheet capable of toggling by the handle is hinged in the plastic shell. A buckle capable of locking by the lock catch is arranged in the toggle sheet. The handle is connected with a moving contact capable of contacting the static contact through a driving mechanism.
Description
Technical field
The utility model relates to a kind of circuit breaker, especially relates to a kind of to the isostructural improvement of other suction formula plastic casing circuit breaker.
Background technology
Circuit breaker is the electric equipment of the overload, short circuit or the under voltage protection that are used for the AC and DC circuit, when overload, short circuit, can make the electric current disjunction in moment, and protection circuit and power-supply device are not damaged.Chinese patent discloses a kind of short circuit current protector (Granted publication number: CN 201032621Y) of breaker of plastic casing, it comprises the instrument transformer of preface connection successively, signal conditioning circuit, single-chip microcomputer and actuator, each of wherein said instrument transformer and electrical network signal of telecommunication mutually connects, in order to export the little current signal of corresponding each phase, signal conditioning circuit is in order to nurse one's health each little current signal, export a plurality of conditioned signal, breaker of plastic casing also comprises a simulation trip circuit, it comprises: a plurality of amplifying circuits, its input are connected with each conditioned signal of signal conditioning circuit correspondingly; One comparison circuit; has an input; one relatively holds and an output; input is connected with the output of a plurality of amplifying circuits; relatively end connects a reference signal; output is connected with actuator; the short circuit current protector of breaker of plastic casing also comprises a power supply; its input is connected with described signal conditioning circuit; its output is connected with single-chip microcomputer with actuator; the simulation trip circuit also comprises a plurality of isolated components; be located at respectively between the output and comparison circuit input of each amplifying circuit, isolated component is a diode, and the voltage of reference signal is between 2.0V～2.5V.But the dropout of this circuit breaker is inconvenient with contacting of tripping, and moving contact transmission speed when touching fixed contact or disengagement fixed contact is unhappy, meets accident easily.
The utility model content
The utility model technical issues that need to address provide a kind of other suction formula plastic casing circuit breaker, it mainly is the inconvenience that contacts that solves dropout with the tripping of existing in prior technology circuit breaker, and moving contact at the touching fixed contact or when throwing off fixed contact transmission speed unhappy, the technical problem that meets accident easily etc.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
Other suction formula plastic casing circuit breaker of the present utility model, comprise and mould shell, mould and be connected with input terminal and outlet terminal on the shell, it is characterized in that described input terminal is connected with fixed contact, outlet terminal is communicated with inductance coil, inductance coil inside is provided with static iron core, static iron core one side contacts has armature, armature and mould and be connected with armature spring between the shell, armature has snap close by the contact of snap close connecting rod, and outlet terminal is communicated with snap close, mould shell and be connected with handle, mould and be hinged with the plectrum that can be stirred by handle in the shell, plectrum one end is provided with the tripping that can be fastened by snap close, and handle is connected with the moving contact that can contact with fixed contact by transmission mechanism.When circuit is short-circuited electric current when excessive,, the armature of static iron core one side is held even magnetic force is sent with static iron core in inductance coil energising back, utilize lever principle, the snap close connecting rod that armature connects opens it after can moving upward and touching snap close, makes tripping thread off, and finishes and opens circuit.Armature spring can be used for armature is resetted.Moving contact can be realized with the contact of fixed contact or separates by transmission mechanism.Input terminal and outlet terminal can be connected on the pedestal for screw.
As preferably, described transmission mechanism includes the handle spring that is connected with handle, handle spring is connected with connecting rod and lower link, snap close is positioned at the below of handle spring and last rod connection point, lower link is connected with the moving contact that can contact with fixed contact, the moving contact outside and mould and be connected with moving contact spring between the shell.After handle was upwards pulled, after the central pivot point of handle spring through last connecting rod, lower link, lower link was subjected to the pulling force of handle spring, and moving contact is rotation rapidly under the effect of lower link, thereby contacts with fixed contact, with the input terminal conducting.
As preferably, the shell inside of moulding of described fixed contact and moving contact contact area is provided with arc-extinguish chamber, is provided with flash barrier between arc-extinguish chamber and the input terminal.The spark that arc-extinguish chamber produces in the time of can be with the touching of fixed contact and moving contact is eliminated.
As preferably, described outlet terminal is connected with temperature-sensing element, and temperature-sensing element the inner is connected with the top that can push draw bar.When temperature was higher in moulding shell, crooked after temperature-sensing element is heated, the top of its inner promptly moved upward and pushes draw bar, and snap close is opened, and tripping is threaded off, and finishes and opens circuit.
Therefore, the dropout that the utlity model has circuit breaker is comparatively convenient with contacting of tripping, and moving contact at the touching fixed contact or when throwing off fixed contact transmission speed very fast, be not easy to meet accident characteristics such as simple and reasonable for structure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is side internal structure schematic diagrames of Fig. 1.
Parts, position and numbering among the figure: mould shell 1, input terminal 2, outlet terminal 3, fixed contact 4, static iron core 5, armature 6, armature spring 7, draw bar 8, snap close 9, handle 10, plectrum 11, tripping 12, moving contact 13, handle spring 14, go up connecting rod 15, lower link 16, moving contact spring 17, arc-extinguish chamber 18, flash barrier 19.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the other suction formula plastic casing circuit breaker of this example, as Fig. 1, Fig. 2, have one to mould shell 1, mould the input terminal 2 and outlet terminal 3 that are connected with three-phase electricity on the shell respectively, input terminal 2 is connected with fixed contact 4, outlet terminal 3 is communicated with inductance coil, inductance coil inside is provided with static iron core 5, and static iron core one side contacts has armature 6, armature and mould and be connected with armature spring 7 between the shell, armature has snap close 9 by draw bar 8 contacts, and outlet terminal is communicated with moving contact 13.Outlet terminal 3 is connected with temperature-sensing element, and temperature-sensing element the inner is connected with the top that can push draw bar 8.Mould shell 1 and be connected with the handle 10 that to stir up and down, mould and be hinged with the plectrum 11 that to be stirred by handle in the shell, plectrum one end is provided with the tripping 12 that can be fastened by snap close, handle 10 is connected with connecting rod 15 and lower link 16 by handle spring 14, snap close is positioned at the below of spring and last rod connection point, lower link is connected with the moving contact 13 that can contact with fixed contact, and fixed contact 4 is provided with arc-extinguish chamber 18 with shell 1 inside of moulding of moving contact 13 contact areas, is provided with flash barrier 19 between arc-extinguish chamber and the input terminal 2.The moving contact outside and mould and be connected with moving contact spring 17 between the shell.
During use, earlier handle 10 is down pulled, handle is stirred plectrum 11 and is moved downward, and the tripping 12 on the plectrum is and snap close 9 snaps together.Again handle is upwards pulled, behind last connecting rod 15 of handle spring 14 processes and lower link 16 central pivot point that handle connects, lower link is subjected to the pulling force of handle spring, and moving contact 13 is rotation rapidly under the effect of lower link, thereby moving contact contacts with fixed contact 4, input terminal 2 conductings.When circuit is short-circuited electric current when excessive, make static iron core 5 produce magnetic force after the inductance coil energising, armature 6 is held, armature is held the back because lever principle makes draw bar 8 motions, thereby snap close 9 is opened, and tripping 12 is threaded off, thus open-circuit line.The electric repulsion that moving contact 13 places produce is greater than the spring force of moving contact spring 17, and moving contact can quicken open-circuit line promptly by pop into position.
Claims (4)
1. other suction formula plastic casing circuit breaker, comprise and mould shell (1), mould and be connected with input terminal (2) and outlet terminal (3) on the shell, it is characterized in that described input terminal (2) is connected with fixed contact (4), outlet terminal (3) is communicated with inductance coil, inductance coil inside is provided with static iron core (5), static iron core one side contacts has armature (6), armature and mould and be connected with armature spring (7) between the shell, armature has snap close (9) by draw bar (8) contact, outlet terminal is communicated with fixed contact (4), mould shell (1) and be connected with handle (10), mould and be hinged with the plectrum (11) that can be stirred by handle in the shell, be provided with the tripping (12) that can be fastened by snap close in the plectrum, handle is connected with the moving contact (13) that can contact with fixed contact by transmission mechanism.
2. other suction formula plastic casing circuit breaker according to claim 1, it is characterized in that described transmission mechanism includes the handle spring (14) that is connected with handle (10), handle spring (14) is connected with connecting rod (15) and lower link (16), snap close (9) is positioned at the below of handle spring and last rod connection point, lower link is connected with the moving contact (13) that can contact with fixed contact, the moving contact outside and mould and be connected with moving contact spring (17) between the shell (1).
3. other suction formula plastic casing circuit breaker according to claim 1 and 2, it is characterized in that the described fixed contact (4) and shell (1) inside of moulding of moving contact (13) contact area are provided with arc-extinguish chamber (18), are provided with flash barrier (19) between arc-extinguish chamber and the input terminal (2).
4. other suction formula plastic casing circuit breaker according to claim 1 and 2 is characterized in that described outlet terminal (3) is connected with temperature-sensing element, and temperature-sensing element the inner is connected with the top that can push draw bar (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203189382U CN201622987U (en) | 2009-12-30 | 2009-12-30 | Breaker with side sucking plastic outer shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203189382U CN201622987U (en) | 2009-12-30 | 2009-12-30 | Breaker with side sucking plastic outer shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201622987U true CN201622987U (en) | 2010-11-03 |
Family
ID=43026443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203189382U Expired - Fee Related CN201622987U (en) | 2009-12-30 | 2009-12-30 | Breaker with side sucking plastic outer shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201622987U (en) |
-
2009
- 2009-12-30 CN CN2009203189382U patent/CN201622987U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20131230 |