CN212783354U - Arc striking way of circuit breaker - Google Patents
Arc striking way of circuit breaker Download PDFInfo
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- CN212783354U CN212783354U CN202021622406.0U CN202021622406U CN212783354U CN 212783354 U CN212783354 U CN 212783354U CN 202021622406 U CN202021622406 U CN 202021622406U CN 212783354 U CN212783354 U CN 212783354U
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- arc
- striking
- arc striking
- circuit breaker
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Abstract
The utility model relates to a circuit breaker arc extinguishing technical field specifically is an arc striking way of circuit breaker, include: the shell body, the inside fixed mounting of shell body has the striking plate, form two explosion chambers between surface and the shell body about the striking plate, explosion chamber one end sets up the baffle, has seted up the arc striking groove on the baffle, and the one end that two explosion chambers are close to the baffle is provided with the arc striking way, and integrated into one piece is provided with and the communicating air discharge duct of arc striking way in the shell body, and shell body and striking plate separate into isolated two parts with two arc striking ways, and the arc striking way is kept away from by the baffle one side of explosion chamber and is formed between the arc striking inboard wall, and the arc striking way is L form, the utility model discloses utilize baffle and shell body to isolate two arc striking ways, form two mutually independent arc striking ways to the extinguishing of electric arc is accelerated, has improved the segmentation ability of circuit breaker.
Description
Technical Field
The utility model relates to a circuit breaker arc extinguishing technical field specifically is an arc striking way of circuit breaker.
Background
The circuit breaker is connected and disconnected by a moving contact and a static contact, the static contact is generally fixedly arranged on a base, the moving contact is movably arranged, and the moving contact can be contacted with or separated from the static contact, so that the circuit breaker is connected or disconnected. The moving contact can produce electric arc after with the static contact separation, need extinguish electric arc rapidly, prevent its reignition.
The existing circuit breaker is usually provided with only one arc striking way when in use, so that electric arc is extinguished slowly, the electric arc can be re-ignited, and the breaking capacity of the circuit breaker is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an arc striking way of circuit breaker to solve the problem that proposes among the above-mentioned background art.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
an arc runner for a circuit breaker, comprising: the shell body, the inside fixed mounting of shell body has the striking plate, form two explosion chambers between surface and the shell body about the striking plate, explosion chamber one end sets up the baffle, seted up the striking groove on the baffle, two the one end that the explosion chamber is close to the baffle is provided with the striking way, integrated into one piece be provided with in the shell body with the communicating air discharge duct of striking way.
Further, shell body and run-on plate will two run-on way separates into isolated two parts, run-on way is kept away from by the baffle and is formed between the one side of explosion chamber and the run-on plate inner wall, and run-on way is the L form.
Furthermore, the air outlets of the two arc ignition channels are respectively positioned at different ends of one side of the upper surface and the lower surface of the arc ignition plate.
Furthermore, the arc striking groove is a plurality of, and is a plurality of the arc striking groove is parallel with the clearance between the arc extinguishing bars in the arc extinguishing chamber, and the arc striking groove communicates explosion chamber and arc striking way.
Furthermore, the exhaust duct is L-shaped, two arc striking way gas outlets are communicated with the exhaust duct, and one end of the exhaust duct far away from the arc striking way is communicated with the outside of the outer shell.
Compared with the prior art, the utility model provides an arc striking way of circuit breaker possesses following beneficial effect:
1. the utility model discloses, utilize baffle and shell body to isolate two arc striking way, form two mutually independent arc striking ways to accelerate extinguishing of electric arc, improved the segmentation ability of circuit breaker;
2. the utility model can facilitate the free gas between the arc-extinguishing grid pieces in the arc-extinguishing chamber to be quickly discharged into the arc-striking channel by arranging the partition plate and the arc-striking groove at one end of the arc-extinguishing chamber, thereby avoiding the re-burning phenomenon of the electric arc;
3. the utility model discloses, through setting up the air discharge duct, the same row of free gas of two run-on inslots to the air discharge duct in, arrange the outside to the shell body by the air discharge duct again, avoid the interior high temperature of shell body, influence the arc extinguishing effect of circuit breaker.
Drawings
FIG. 1 is a schematic front view of the flash barrier of the present invention;
FIG. 2 is a schematic view of the back structure of the flash barrier of the present invention;
fig. 3 is a schematic view of the internal structure of the outer casing of the present invention;
fig. 4 is a schematic view of the internal cross-sectional structure of the outer casing of the present invention.
In the figure: 1-an outer shell; 2-an arc isolating plate; 3-an arc extinguishing chamber; 4-a separator; 5-arc striking groove; 6-arc striking way; 7-exhaust groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example (b): referring to fig. 1 to 4, the present invention provides a technical solution: an arc runner for a circuit breaker, comprising: shell body 1, the inside fixed mounting of shell body 1 has run-on plate 2, forms two explosion chambers 3 between 2 upper and lower surfaces of run-on plate and the shell body 1, and 3 one end of explosion chamber sets up baffle 4, has seted up run-on groove 5 on the baffle 4, and two explosion chambers 3 are provided with run-on way 6 near the one end of baffle 4, and integrated into one piece is provided with and leads to the communicating air discharge duct 7 of arc way 6 in the shell body 1.
Wherein, shell body 1 and striking board 2 separate into isolated two parts with two arc striking way 6, arc striking way 6 is kept away from by baffle 4 and is formed between one side of explosion chamber 3 and 2 inner walls of striking board, and arc striking way 6 is the L form, the gas outlet of two arc striking ways 6 is located the different ends of striking board 2 upper and lower one side respectively, utilize baffle 4 and shell body 1 to isolate two arc striking ways 6, form two mutually independent arc striking ways 6, thereby accelerate extinguishing of electric arc, the segmentation ability of circuit breaker has been improved.
Wherein, the striking groove 5 is a plurality of, and the clearance between the arc extinguishing bars piece in a plurality of striking groove 5 and the explosion chamber 3 is parallel, and striking groove 5 intercommunication explosion chamber 3 and striking way 6, sets up baffle 4 and striking groove 5 through the one end at explosion chamber 3, can make things convenient for free gas between the arc extinguishing bars piece in the explosion chamber 3 to arrange to the striking way 6 fast in, has avoided the phenomenon of reigniting of electric arc.
Wherein, exhaust duct 7 is the L form, and two arc striking way 6 gas outlets all communicate with each other with exhaust duct 7, and exhaust duct 7 keeps away from the one end of arc striking way 6 and the shell body 1 outside communicates with each other, through setting up exhaust duct 7, and the free gas in two arc striking grooves 5 is same arranges to exhaust duct 7 in, arranges to the outside of shell body 1 by exhaust duct 7 again, avoids the interior high temperature of shell body 1, influences the arc extinguishing effect of circuit breaker.
The working principle is as follows: the utility model discloses in the use, utilize baffle 4 and shell body 1 to cut off two arc striking way 6, form two mutually independent arc striking way 6, thereby accelerate extinguishing of electric arc, the segmentation ability of circuit breaker has been improved, one end through at explosion chamber 3 sets up baffle 4 and arc striking groove 5, can make things convenient for free gas between the arc extinguishing bars piece to arrange to the arc striking way 6 fast in 3, the phenomenon of reigniting of electric arc has been avoided, and at last, two free gas in the arc striking groove 5 are same arranges to the air discharge duct 7 in, arrange to shell body 1's outside by air discharge duct 7 again, avoid the interior high temperature of shell body 1, influence the arc extinguishing effect of circuit breaker.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An arc runner for a circuit breaker, comprising: an outer casing (1), characterized in that: the arc striking plate is fixedly installed inside the outer shell (1), two arc extinguishing chambers (3) are formed between the upper surface and the lower surface of the arc striking plate (2) and the outer shell (1), a partition plate (4) is arranged at one end of each arc extinguishing chamber (3), an arc striking groove (5) is formed in each partition plate (4), two arc striking channels (6) are arranged at one ends, close to the partition plates (4), of the arc extinguishing chambers (3), and the arc striking channels (6) are communicated with an exhaust groove (7) formed in the outer shell (1) in an integrated mode.
2. The arc runner of a circuit breaker according to claim 1, wherein: the arc striking device is characterized in that the outer shell (1) and the arc striking plate (2) are divided into two isolated parts by the arc striking channel (6), the arc striking channel (6) is formed between one side of the arc extinguishing chamber (3) far away from the partition plate (4) and the inner wall of the arc striking plate (2), and the arc striking channel (6) is L-shaped.
3. The arc runner of a circuit breaker according to claim 1, wherein: the air outlets of the two arc ignition channels (6) are respectively positioned at different ends of one side of the upper surface and the lower surface of the arc ignition plate (2).
4. The arc runner of a circuit breaker according to claim 1, wherein: the arc striking groove (5) is a plurality of, a plurality of the arc striking groove (5) is parallel with the gap between the arc extinguishing grid pieces in the arc extinguishing chamber (3), and the arc striking groove (5) is communicated with the arc extinguishing chamber (3) and the arc striking channel (6).
5. The arc runner of a circuit breaker according to claim 1, wherein: the exhaust groove (7) is L-shaped, the air outlets of the two arc ignition channels (6) are communicated with the exhaust groove (7), and one end, far away from the arc ignition channel (6), of the exhaust groove (7) is communicated with the outside of the outer shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021622406.0U CN212783354U (en) | 2020-08-06 | 2020-08-06 | Arc striking way of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021622406.0U CN212783354U (en) | 2020-08-06 | 2020-08-06 | Arc striking way of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212783354U true CN212783354U (en) | 2021-03-23 |
Family
ID=75050572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021622406.0U Active CN212783354U (en) | 2020-08-06 | 2020-08-06 | Arc striking way of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212783354U (en) |
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2020
- 2020-08-06 CN CN202021622406.0U patent/CN212783354U/en active Active
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