CN217280665U - High-breaking-capacity universal circuit breaker diversion mechanism - Google Patents
High-breaking-capacity universal circuit breaker diversion mechanism Download PDFInfo
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- CN217280665U CN217280665U CN202123356475.9U CN202123356475U CN217280665U CN 217280665 U CN217280665 U CN 217280665U CN 202123356475 U CN202123356475 U CN 202123356475U CN 217280665 U CN217280665 U CN 217280665U
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- arc extinguishing
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- circuit breaker
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Abstract
The utility model discloses a high disconnected universal circuit breaker guiding mechanism, it includes explosion chamber, arc extinguishing chamber, secondary terminal insulation board, static contact striking piece I, the explosion chamber set up in moving contact top position, the explosion chamber is provided with striking piece II, the explosion chamber upper end is provided with the arc extinguishing chamber, the arc extinguishing chamber structure of as an organic whole, its upper end is sealed, the lower extreme and the explosion chamber upper exit intercommunication, be fixed with the looks division board in the arc extinguishing chamber, the front end of arc extinguishing chamber is provided with the drainage hole, arc extinguishing chamber rear end fixed be provided with the secondary terminal insulation board; the upper half part of the arc striking piece II is provided with a V-shaped notch as a backflow hole, compared with the existing arc extinguishing diversion mechanism of the frame circuit breaker, the diversion mechanism has reasonable structural design, and the arc extinguishing chamber and the arc extinguishing cover jointly form a diversion channel which can reasonably guide airflow to flow, prevent interphase short circuit and improve the safety and reliability of the circuit breaker; the arc striking piece II of the arc extinguishing chamber is provided with a backflow hole, so that the air blowing effect can be enhanced, and the air blowing effect of the flow guide channel is further improved.
Description
Technical Field
The utility model relates to a frame circuit breaker equipment field specifically is a disconnected universal circuit breaker water conservancy diversion mechanism of high branch.
Background
The intelligent universal circuit breaker is used as a power-level protective electrical appliance, has the functions of overload, short circuit, phase loss, overvoltage, undervoltage, grounding protection and the like, can protect a circuit and electrical equipment from being damaged, can diagnose possible grounding faults in the circuit, and is trusted and used by vast power consumers.
The intelligent universal circuit breaker is also widely applied in the field of new energy, the requirement of the new energy market on working voltage is more and more, high-voltage gas and electric arc are easily generated when the high voltage is cut off, and if the high-voltage gas and the electric arc cannot be guided correctly, the electric arc is easy to damage a secondary circuit part, so that the inter-phase short circuit accident of the circuit breaker is caused.
Disclosure of Invention
The utility model aims at providing a high disconnected universal circuit breaker water conservancy diversion mechanism that divides improves circuit breaker security, reliability, improves the water conservancy diversion passageway of circuit breaker, can guide high-temperature gas and electric arc effectively to improve the security, the reliability of circuit breaker.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:
a high-breaking universal circuit breaker diversion mechanism comprises an arc extinguish chamber, a secondary terminal insulation plate and a static contact arc striking plate I, wherein the arc extinguish chamber is arranged above a moving contact, the arc extinguish chamber is provided with an arc striking plate II, the upper end of the arc extinguish chamber is provided with the arc extinguish chamber, the arc extinguish chamber is of an integrated structure, the upper end of the arc extinguish chamber is closed, the lower end of the arc extinguish chamber is communicated with an upper outlet of the arc extinguish chamber, a phase partition plate is fixed in the arc extinguish chamber, the front end of the arc extinguish chamber is provided with a drainage hole, and the rear end of the arc extinguish chamber is fixedly provided with the secondary terminal insulation plate; the upper half part of the striking plate II is provided with a V-shaped notch serving as a backflow hole, a gap is formed in the outer side of the striking plate and communicated with the lower end of the arc extinguish chamber to form a backflow channel, and a part of arc extinguish chamber air blowing flow flows back through the backflow hole of the striking plate of the arc extinguish chamber to further enhance the air blowing effect.
The arc extinguishing chamber include conventional arc extinguishing bars piece group, go up cover plate, curb plate, the both sides and the curb plate of arc extinguishing bars piece group are connected, go up the fixed setting in arc extinguishing bars piece group upper end of cover plate, be provided with the arc extinguishing export and the arc extinguishing cover intercommunication.
Furthermore, the arc striking piece II is of a bent plate structure as a whole, the V-shaped notch is formed in the middle of the upper end of the bent plate, the lower end of the bent plate bends towards the static contact arc striking piece I, and an electric arc ascending channel is formed between the arc striking piece II and the static contact arc striking piece I and is communicated with the arc extinguish chamber.
The static contact arc striking piece I is a conventional structural component and is arranged above the static contact.
The moving contact front end still fixed be provided with the moving contact cover, the moving contact cover plate is PA66 material, very easily produces gas under the high temperature to separate the electric arc that produces with the circuit breaker and blow off contact part, avoid the secondary switch-on.
The arc extinguishing cover is mainly used for guiding and guiding partial electric arcs, guiding the electric arcs to the opposite direction of the position of the secondary terminal, and effectively preventing the electric arcs from moving among phases by matching with the separators which are added among the phases; and a secondary terminal insulating plate is additionally arranged between the rear part of the secondary terminal and the arc extinguishing cover, so that the arc is effectively prevented from moving towards the direction of a secondary loop.
The utility model has the advantages that:
compared with the existing frame circuit breaker, the flow guide mechanism is reasonable in design, the arc extinguish chamber and the arc extinguishing cover jointly form a flow guide channel, airflow can be reasonably guided to flow, electric arcs are led out from one side of the arc extinguishing cover, interphase short circuit is prevented, and safety and reliability of the circuit breaker are improved; arc striking piece II of the arc extinguishing chamber is provided with a backflow hole, so that the air blowing effect can be enhanced, and the air flow flowing effect of the flow guide channel is further improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a structure of an arc runner;
fig. 3 is a schematic structural diagram of the arc extinguishing cover.
1-arc extinguish chamber 1, 2-arc extinguish chamber 2, 3-secondary terminal insulating board 3, 4-moving contact cover 4, 5-phase partition board 5, 6-drainage hole 6, 7-static contact arc striking piece I7, 8-moving contact 8, 10-arc extinguish grid group 10, 11-arc striking piece II 11, 12-upper cover board 12, 13-side board 13.
Detailed Description
The diversion mechanism of the high-breaking universal circuit breaker shown in the attached figures 1-3 comprises an arc extinguish chamber 1, an arc extinguish chamber 2, a secondary terminal insulating plate 3 and a static contact arc striking plate I7, wherein the arc extinguish chamber 1 is arranged above a moving contact 8, the arc extinguish chamber 1 is provided with an arc striking plate II 11, the upper end of the arc extinguish chamber 1 is provided with the arc extinguish chamber 2, the arc extinguish chamber 2 is of an integrated structure, the upper end of the arc extinguish chamber 2 is closed, the lower end of the arc extinguish chamber 1 is communicated with an upper outlet, a phase spacing plate 5 is fixed in the arc extinguish chamber 2, the front end of the arc extinguish chamber 2 is provided with a drainage hole 6, and the rear end of the arc extinguish chamber 2 is fixedly provided with the secondary terminal insulating plate 3; the first half of striking II 11 be provided with the V-arrangement breach as the backward flow hole, be provided with gapped and 1 lower extreme intercommunication in explosion chamber between the striking piece outside and the circuit breaker base, constitute return flow channel, the backward flow of some 1 air-blown air currents in explosion chamber through 1 striking piece backward flow hole in explosion chamber, further reinforcing air-blown effect.
The arc extinguishing chamber 1 comprises a conventional arc extinguishing grid group 10, an upper cover plate 12 and side plates 13, wherein two sides of the arc extinguishing grid group 10 are connected with the side plates 13, the upper cover plate 12 is fixedly arranged at the upper end of the arc extinguishing grid group 10, and an arc extinguishing outlet is formed and communicated with the arc extinguishing cover 2.
Furthermore, the striking piece II 11 is a bent plate structure as a whole, the V-shaped notch is formed in the middle of the upper end of the bent plate, the lower end of the bent plate bends towards the static contact striking piece I7, and an electric arc ascending channel is formed between the striking piece II 11 and the static contact striking piece I7 and is communicated with the arc extinguish chamber 1.
And the fixed contact arc striking piece I7 is a conventional structural part and is arranged above the fixed contact.
The moving contact 8 front end still fixed be provided with movable contact cover, movable contact cover is PA66 material, the front end under the moving contact of cladding, very easily produces gas under the high temperature to break the electric arc that produces with the circuit breaker and blow off the contact part, avoid the secondary switch-on.
The arc extinguishing cover 2 is mainly used for guiding and guiding partial electric arcs, guiding the electric arcs to the opposite direction of the position of the secondary terminal, and effectively preventing the electric arcs from moving among phases by matching with the partition plates added among the phases; a secondary terminal insulating plate 3 is additionally arranged between the rear part of the secondary terminal and the arc extinguishing cover 2, so that the electric arc is effectively prevented from moving towards the direction of a secondary loop; furthermore, the fixed baffle that sets up in arc extinguishing cover both sides, the baffle can set up the drainage hole.
Compared with the existing frame circuit breaker, the flow guide mechanism is reasonable in design, the arc extinguish chamber and the arc extinguishing cover jointly form a flow guide channel, airflow can be reasonably guided to flow, electric arcs are led out from one side of the arc extinguishing cover, interphase short circuit is prevented, and safety and reliability of the circuit breaker are improved; arc striking piece II of the arc extinguishing chamber is provided with a backflow hole, so that the air blowing effect can be enhanced, and the air flow flowing effect of the flow guide channel is further improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the principles of the present invention, several improvements can be made, and these improvements should also be regarded as the protection scope of the present invention without creative work.
Claims (5)
1. The utility model provides a high disconnected conventional circuit breaker water conservancy diversion mechanism which characterized in that: the arc extinguishing chamber is arranged above the moving contact, the arc extinguishing chamber is provided with an arc striking sheet II, the upper end of the arc extinguishing chamber is provided with an arc extinguishing cover, the arc extinguishing cover is of an integrated structure, the upper end of the arc extinguishing cover is closed, the lower end of the arc extinguishing cover is communicated with an upper outlet of the arc extinguishing chamber, a phase partition plate is fixed in the arc extinguishing cover, the front end of the arc extinguishing cover is provided with a drainage hole, and the rear end of the arc extinguishing cover is fixedly provided with a secondary terminal insulating plate; and the upper half part of the arc striking piece II is provided with a V-shaped notch as a backflow hole.
2. The flow guide mechanism of a high breaking universal circuit breaker according to claim 1, characterized in that: the outer side of the arc striking piece is provided with a gap which is communicated with the lower end of the arc extinguishing chamber to form a return channel.
3. The flow guide mechanism of a high breaking universal circuit breaker according to claim 1, characterized in that: the arc extinguishing chamber include arc extinguishing bars piece group, go up cover plate, curb plate, the both sides and the curb plate of arc extinguishing bars piece group are connected, go up the fixed setting of cover plate and be provided with arc extinguishing export and arc extinguishing cover intercommunication in arc extinguishing bars piece group upper end.
4. The flow guide mechanism of a high breaking universal circuit breaker according to claim 1, characterized in that: run-on piece II wholly be the bent plate structure, V-arrangement breach setting is in bent plate upper end middle part, the bent plate lower extreme is buckled towards static contact run-on piece I.
5. The flow guide mechanism of a high breaking universal circuit breaker according to claim 1, characterized in that: the front end of the moving contact is also fixedly provided with a moving contact cover which is made of PA66 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123356475.9U CN217280665U (en) | 2021-12-29 | 2021-12-29 | High-breaking-capacity universal circuit breaker diversion mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123356475.9U CN217280665U (en) | 2021-12-29 | 2021-12-29 | High-breaking-capacity universal circuit breaker diversion mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217280665U true CN217280665U (en) | 2022-08-23 |
Family
ID=82890724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123356475.9U Active CN217280665U (en) | 2021-12-29 | 2021-12-29 | High-breaking-capacity universal circuit breaker diversion mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217280665U (en) |
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2021
- 2021-12-29 CN CN202123356475.9U patent/CN217280665U/en active Active
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