CN209169092U - A kind of breaker prevents adhesion mechanism - Google Patents
A kind of breaker prevents adhesion mechanism Download PDFInfo
- Publication number
- CN209169092U CN209169092U CN201920127073.5U CN201920127073U CN209169092U CN 209169092 U CN209169092 U CN 209169092U CN 201920127073 U CN201920127073 U CN 201920127073U CN 209169092 U CN209169092 U CN 209169092U
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- China
- Prior art keywords
- contact
- arc
- moving contact
- limit shaft
- transmission mechanism
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Abstract
It prevents adhesion mechanism the utility model relates to a kind of breaker, including circuit breaker housing, transmission mechanism, arc quenching system, contact system, the transmission mechanism, arc quenching system and contact system are arranged in circuit breaker housing, the contact system includes moving contact, static contact, the lower section of the arc quenching system is arranged in the static contact, the side of the arc quenching system is arranged in the moving contact and the moving contact and transmission mechanism linkage are arranged, the transmission mechanism includes limit shaft, the side of moving contact is arranged in the limit shaft, insulating sleeve is provided on the limit shaft.The utility model is provided with insulating sleeve on the limit shaft of transmission mechanism, moving contact and limit shaft insulation are separated using the insulation characterisitic of insulating sleeve, it will not allow moving contact and limit shaft melting welding adhesion in fault electric arc, good effect is obtained by the short circuit of high breaking test of knowing the real situation.
Description
Technical field
It prevents adhesion mechanism the utility model relates to a kind of breaker.
Background technique
Breaker of plastic casing is protective device important in low-voltage distribution system, in low-voltage distribution system it play connection,
Disjunction running current, while having and providing short-circuit protection, overload protection, under-voltage to AC network route and electrical equipment
Protection etc..
Breaker of plastic casing is when short trouble occur or doing short circuit breaking test, due to moving contact and the big electricity of static contact disjunction
It flows and generates electric arc and free metal particle injection, such plastic housing open circuit
The B phase moving contact of device and the limit shaft of transmission mechanism are easy adhesion, cause breaker that cannot close
Lock influences regular link operation or subsequent test.
Summary of the invention
In view of this, place, a kind of breaker of the utility model prevent adhesion mechanism, including breaker in view of the above-mentioned deficiencies
Shell, transmission mechanism, arc quenching system, contact system, the transmission mechanism, arc quenching system and contact system are arranged at open circuit
In device shell, the contact system includes moving contact, static contact, and the lower section of the arc quenching system, institute is arranged in the static contact
State moving contact be arranged in the arc quenching system side and the moving contact and the transmission mechanism linkage be arranged, the driver
Structure includes limit shaft, and the side of moving contact is arranged in the limit shaft, is provided with insulating sleeve on the limit shaft.
It includes handle, main extension spring, upper connecting rod, lower link, main shaft, institute that the transmission mechanism, which is further arranged, in the utility model
The both ends for stating main extension spring are connected on the lower section and lower link of handle, the main extension spring respectively with the handle and lower link
It is connected, the lower link is connected with the moving contact, and the main shaft is arranged on the moving contact.
It includes arc extinguishing grid pieces and arc extinguishing partition, the arc extinguishing grid pieces that the arc quenching system, which is further arranged, in the utility model
Be tilted towards the setting of circuit breaker housing bottom angled, the arc extinguishing partition is arranged in the side of the arc extinguishing grid pieces, the arc extinguishing every
Top of the plate from the bottom of arc extinguishing grid pieces to arc extinguishing grid pieces is extended.
The both ends that the circuit breaker housing is further arranged in the utility model are provided with connecting groove, setting in the connecting groove
There is connecting terminal, the connecting terminal includes fixing screws and wiring gasket, and the wiring gasket is fixed by fixing screws
In connecting groove.
It is U-shaped structure that the static contact, which is further arranged, in the utility model, and the upper surface of the static contact is provided with contact,
The front end of the static contact is provided with arc leading angle, is provided with connection spiral shell between the end of the static contact and the wiring gasket
Bolt.
It includes the horizontal segment and bending section contacted with static contact that the arc leading angle, which is further arranged, in the utility model, described
Bending section is arranged in parallel with the arc extinguishing grid pieces.
The utility model is further arranged the moving contact and the side of limit shaft is provided with moving contact contact.
The utility model has the beneficial effects that being provided with insulating sleeve on the limit shaft of transmission mechanism, insulating sleeve is utilized
Insulation characterisitic moving contact and limit shaft insulation are separated, will not allow moving contact and limit shaft melting welding viscous in fault electric arc
Even, know the real situation to test by the short circuit of high breaking and obtain good effect.
Detailed description of the invention
Fig. 1 is the utility model embodiment schematic diagram.
Fig. 2 is the enlarged drawing in Fig. 1 at A.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model a part is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of creative work.
As shown in Figs. 1-2, the utility model is prevented adhesion mechanism, including circuit breaker housing 1, driver using a kind of breaker
Structure 100, arc quenching system 200, contact system 300, the transmission mechanism 100, arc quenching system 200 and contact system 300 are all provided with
It sets in circuit breaker housing 1, the contact system 300 includes moving contact 2, static contact 3, and the setting of static contact 3 is gone out described
The lower section of arc system, the moving contact 2 are provided with moving contact contact 2a far from the side of limit shaft.
The side of the arc quenching system 200 and the moving contact 2 and the transmission mechanism 100 is arranged in the moving contact 2
Linkage setting, the transmission mechanism 100 include limit shaft 4, and the side of moving contact 2, the limit shaft is arranged in the limit shaft 4
Insulating sleeve 5 is provided on 4.
Transmission mechanism increases insulating sleeve when riveting limit shaft, after breaker automatically jumping moving contact will not directly with
Limit shaft contact, but, even if so there is big electric arc and free metal particle injection, moved by insulating sleeve to separating
Contact will not be with 4 adhesion of limit shaft.
Wherein the transmission mechanism 100 includes handle 15, main extension spring 6, upper connecting rod 7, lower link 8, main shaft 9, the main drawing
The both ends of spring 6 are connected on the lower section and lower link 7 of handle 15, the main extension spring 6 respectively with the handle 15 and lower company
Bar 8 is connected, and the lower link 8 is connected with the moving contact 2, and the main shaft 9 is arranged on the moving contact 2, institute
Stating arc quenching system 200 includes arc extinguishing grid pieces 10 and arc extinguishing partition 11, and the arc extinguishing grid pieces 10 are tilted towards circuit breaker housing bottom
It is obliquely installed, tilt angle is 15-30 °, and the side of the arc extinguishing grid pieces 10, the arc extinguishing is arranged in the arc extinguishing partition 11
Partition 11 is extended from the bottom of arc extinguishing grid pieces 10 to the top of arc extinguishing grid pieces 10, the both ends setting of the circuit breaker housing 1
There is connecting groove 12, connecting terminal 13 is provided in the connecting groove 12,13 attached bag of terminals includes fixing screws 131 and connects
Line gasket 132, the wiring gasket 132 are fixed in connecting groove 12 by fixing screws 131.
The static contact 3 is U-shaped structure, and the upper surface of the static contact 3 is provided with contact 3a, before the static contact 3
End is provided with arc leading angle 31, and connection bolt 14 is provided between the end of the static contact 3 and the wiring gasket 132, described
Arc leading angle 31 includes 311 sections of the level and bending section 312 that installation is contacted with static contact 3, the bending section 311 and the arc extinguishing
Grid 10 is arranged in parallel.In the front end of static contact, setting arc leading angle improves arc quenching effect.
The utility model is provided with insulating sleeve on the limit shaft of transmission mechanism, will using the insulation characterisitic of insulating sleeve
The insulation of moving contact and limit shaft separates, and will not allow moving contact and limit shaft melting welding adhesion in fault electric arc, passes through high score
Disconnected short circuit, which knows the real situation to test, obtains good effect.
In addition, in the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
In the description of the present invention, it should be noted that term " first ", " second ", " third " are only used for describing
Purpose is not understood to indicate or imply relative importance.
Finally, it should be noted that embodiment described above, only specific embodiment of the present utility model, to illustrate this
Utility model technical solution, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned reality
Example is applied the utility model is described in detail, those skilled in the art should understand that: it is any to be familiar with this technology
The technical staff in field within the technical scope disclosed by the utility model, still can be to skill documented by previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation or replacement, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described is wanted with right
Subject to the protection scope asked.
Claims (7)
- The mechanism 1. a kind of breaker prevents adhesion, it is characterised in that: including circuit breaker housing, transmission mechanism, arc quenching system, contact system System, the transmission mechanism, arc quenching system and contact system are arranged in circuit breaker housing, and the contact system includes dynamic touching The lower section of the arc quenching system is arranged in head, static contact, the static contact, and the one of the arc quenching system is arranged in the moving contact Side and the linkage setting of the moving contact and the transmission mechanism, the transmission mechanism includes limit shaft, and the limit shaft setting exists The side of moving contact is provided with insulating sleeve on the limit shaft.
- The mechanism 2. breaker according to claim 1 prevents adhesion, it is characterised in that: the transmission mechanism includes handle, master The both ends of tension spring, upper connecting rod, lower link, main shaft, the main extension spring are connected on the lower section and lower link of handle, the main drawing Spring is connected with the handle and lower link respectively, and the lower link is connected with the moving contact, and the main shaft is set It sets on the moving contact.
- The mechanism 3. breaker according to claim 1 or 2 prevents adhesion, it is characterised in that: the arc quenching system includes arc extinguishing Grid and arc extinguishing partition, the arc extinguishing grid pieces are tilted towards the setting of circuit breaker housing bottom angled, and the arc extinguishing partition setting exists The side of the arc extinguishing grid pieces, top of the arc extinguishing partition from the bottom of arc extinguishing grid pieces to arc extinguishing grid pieces are extended.
- The mechanism 4. breaker according to claim 3 prevents adhesion, it is characterised in that: the both ends of the circuit breaker housing are arranged There is connecting groove, be provided with connecting terminal in the connecting groove, the connecting terminal includes fixing screws and wiring gasket, described Wiring gasket is fixed in connecting groove by fixing screws.
- The mechanism 5. breaker according to claim 4 prevents adhesion, it is characterised in that: the static contact is U-shaped structure, described The upper surface of static contact is provided with contact, and the front end of the static contact is provided with arc leading angle, the end of the static contact with it is described Connection bolt is provided between wiring gasket.
- The mechanism 6. breaker according to claim 5 prevents adhesion, it is characterised in that: the arc leading angle includes connecing with static contact The horizontal segment and bending section of touching, the bending section are arranged in parallel with the arc extinguishing grid pieces.
- The mechanism 7. breaker according to claim 1 prevents adhesion, it is characterised in that: the moving contact far from limit shaft one Side is provided with moving contact contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920127073.5U CN209169092U (en) | 2019-01-24 | 2019-01-24 | A kind of breaker prevents adhesion mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920127073.5U CN209169092U (en) | 2019-01-24 | 2019-01-24 | A kind of breaker prevents adhesion mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209169092U true CN209169092U (en) | 2019-07-26 |
Family
ID=67328840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920127073.5U Active CN209169092U (en) | 2019-01-24 | 2019-01-24 | A kind of breaker prevents adhesion mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209169092U (en) |
-
2019
- 2019-01-24 CN CN201920127073.5U patent/CN209169092U/en active Active
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