CN217009105U - Arc extinguishing system and circuit breaker - Google Patents
Arc extinguishing system and circuit breaker Download PDFInfo
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- CN217009105U CN217009105U CN202123325125.6U CN202123325125U CN217009105U CN 217009105 U CN217009105 U CN 217009105U CN 202123325125 U CN202123325125 U CN 202123325125U CN 217009105 U CN217009105 U CN 217009105U
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Abstract
An arc extinguishing system and a circuit breaker comprise the arc extinguishing system, wherein the arc extinguishing system comprises an arc extinguishing chamber and a reflecting plate, the reflecting plate is arranged on a static contact mechanism, the arc extinguishing chamber is arranged on the reflecting plate, the reflecting plate comprises an installation bottom plate and a front baffle plate vertically arranged at one end of the installation bottom plate, a first through groove is formed in the installation bottom plate, two arc inlet side plates are vertically arranged on the installation bottom plate and are respectively positioned at two sides of the first through groove, an arc inlet through groove is formed between the two arc inlet side plates, one side edges of the two arc inlet side plates are respectively connected with the front baffle plate, an arc inlet groove is formed in the front baffle plate, and the arc inlet groove corresponds to and is communicated with the arc inlet through groove; the guide inclined planes are arranged on the opposite side faces of the two arc inlet side plates, so that the width of one end, close to the front baffle, of the arc inlet through groove is smaller than that of the other end of the arc inlet through groove, the electric arc generated by opening the moving contact is guided, and the electric arc and metal ions are prevented from being sprayed backwards.
Description
Technical Field
The utility model relates to the field of low-voltage electric appliances, in particular to an arc extinguishing system and a circuit breaker.
Background
The circuit breaker is usually used for controlling the on-off of a circuit and automatically cuts off the circuit when the circuit fails, and after a static contact and a moving contact of the circuit breaker are respectively connected with the controlled circuit, the on-off of the circuit is controlled by the contact and separation of the static contact and the moving contact. When the moving contact is separated from the static contact, electric arcs can be generated, the electric arcs need to be attracted into the arc extinguish chamber through the arc striking plate, and the electric arcs are extinguished through the arc extinguish chamber. At present, the structure of a reflecting plate of the arc-extinguishing device is not beneficial to guiding the electric arc and preventing the electric arc and metal ions from being sprayed backwards. In addition, the arc striking effect of the arc striking plate corresponding to the fixed contact of the existing arc extinguishing device is poor, and the arc root cannot be quickly transferred into the arc extinguishing chamber, so that the electric arc cannot be quickly removed, and the uppermost arc of the arc extinguishing chamber cannot be effectively cut.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an arc extinguishing system and a circuit breaker with high arc striking efficiency.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an arc extinguishing system comprises an arc extinguishing chamber and a reflecting plate, wherein the reflecting plate is arranged on a static contact mechanism, the arc extinguishing chamber is arranged on the reflecting plate, the reflecting plate comprises an installation bottom plate and a front baffle plate vertically arranged at one end of the installation bottom plate, a first through groove is formed in the installation bottom plate, two arc inlet side plates are vertically arranged on the installation bottom plate and are respectively positioned at two sides of the first through groove, an arc inlet through groove is formed between the two arc inlet side plates, one side edge of each of the two arc inlet side plates is respectively connected with the front baffle plate, an arc inlet groove is formed in the front baffle plate, and the arc inlet groove corresponds to and is communicated with the arc inlet through groove; the two arc inlet side plates are provided with guide inclined planes on opposite side faces, so that the width of one end, close to the front baffle, of the arc inlet through groove is smaller than that of the other end of the arc inlet through groove.
Preferably, the explosion chamber includes a plurality of range upon range of arc extinguishing bars piece that sets up, and the one end of arc extinguishing bars piece is equipped with the arc extinguishing breach, the arc extinguishing breach including the V type breach part that is located the bottom and with the U type breach part of V style of calligraphy breach part intercommunication.
Preferably, the arc inlet side plate extends into arc extinguishing gaps of a plurality of arc extinguishing grid pieces of the arc extinguishing chamber, and the width of the arc inlet side plate corresponds to the U-shaped gap of the arc extinguishing gap.
Preferably, a reverse spraying side plate is further arranged between the outer side, far away from the arc inlet through groove, of the two arc inlet side plates and the front baffle plate, the reverse spraying side plate is obliquely arranged to form a reverse spraying inclined surface, and the height of the reverse spraying side plate is smaller than that of the arc inlet side plate.
Preferably, the fixed contact mechanism includes a connecting plate, a fixed contact, and a connecting plate connected between the connecting plate and the fixed contact, an integrally formed arc striking plate is disposed between the fixed contacts of the connecting plate and the fixed contact, and the connecting plate, the fixed contact, the arc striking plate, and the connecting plate are integrally formed by bending conductive metal plates.
Preferably, a rear baffle is further arranged at one end, away from the front baffle, of the mounting base plate, the rear baffle is obliquely arranged to correspond to a connecting plate of the static contact mechanism, an open slot corresponding to and communicated with the first through groove is formed in the rear baffle, two positioning side plates are further connected between the rear baffle and the two arc inlet side plates, the two positioning side plates are respectively arranged on two sides of the first through groove, and the height of each positioning side plate is smaller than that of each arc inlet side plate.
Preferably, the static contact and the connecting plate are provided with avoidance grooves, the plates corresponding to the avoidance grooves on the static contact are bent and connected to form a first static contact plate, the first static contact plate is provided with a static contact, and the plates corresponding to the avoidance grooves on the connecting plate are bent and connected to form the arc striking plate.
Preferably, the connecting plate is parallel to the fixed contact, the connecting plate is arranged in an inclined manner, the first fixed contact plate is located on one side, close to the connecting plate, of the fixed contact, the first fixed contact plate comprises a first bending section and a second bending section which are connected in a bending manner, one end of the first bending section is connected with the avoidance groove in the fixed contact in a bending manner, the other end of the first bending section is connected with the second bending section in a bending manner, the second bending section is parallel to the fixed contact and extends towards the direction close to the connecting plate, the fixed contact is arranged on the second bending section, and the second bending section, the first bending section and the fixed contact form a U-shaped structure; the arc striking plate comprises an arc striking installation section and an arc foot section, the arc striking installation section is connected with the avoidance groove on the connecting plate in a bending mode and is parallel to the static contact, the arc foot section and the arc striking installation section are connected into a V-shaped structure in a bending mode, the arc foot section inclines downwards and extends towards the direction close to the first static contact plate, and the arc foot section and the end portion of the second bending section are close to and arranged at intervals.
Preferably, the arc extinguishing chamber is further included, and the arc extinguishing chamber is arranged on the arc extinguishing chamber.
The utility model also provides a circuit breaker, which comprises the arc extinguishing system in any scheme.
According to the arc extinguishing system, the reflecting plate is provided with the arc inlet side plates, the opposite side surfaces of the two arc inlet side plates are provided with the guide inclined planes, so that the width of one end, close to the front baffle, of the arc inlet through groove is smaller than that of the other end of the arc inlet through groove, the two inclined planes are designed in a manner of being matched with the arc extinguishing chamber structure, electric arcs generated by opening of the moving contact are guided, the phenomenon that the electric arcs and metal ions are clamped and blocked due to backward spraying is prevented, the pressure maintaining effect is achieved, and the air blowing effect is enhanced.
In addition, a reverse spraying side plate is further arranged between the outer side of each arc inlet side plate, which is far away from the arc inlet through groove, and the front baffle plate, and the reverse spraying side plate is obliquely arranged to form a reverse spraying inclined surface for guiding reflected arc gas.
In addition, static contact mechanism integrated into one piece, the shaping is buckled to the run-on plate, and the electric arc that produces when the static contact is opened gets into the explosion chamber along the run-on angle of run-on plate fast, can effectively promote the effect of run-on, and the structure of conventional static contact riveting arc angle has electric arc anti-cluster and is detained on arc angle and contact.
Drawings
FIG. 1 is a side view of an arc extinguishing system of the present invention;
FIG. 2 is a block diagram of the arc extinguishing system of the present invention with the arc extinguishing side plate on one side of the arc extinguishing chamber removed;
fig. 3 is a schematic structural diagram of a static contact mechanism of the present invention;
FIG. 4 is a top view of the arc chute and reflector plate of the present invention;
FIG. 5 is a schematic view of the structure of the reflection plate of the present invention;
FIG. 6 is a top view of a reflector plate of the present invention;
fig. 7 is a schematic view of another angle arc extinguishing system of the present invention.
Detailed Description
The following embodiments are provided in connection with the accompanying drawings to further illustrate the arc extinguishing system and the circuit breaker of the present invention. The arc extinguishing system and the circuit breaker of the present invention are not limited to the description of the following embodiments.
As shown in fig. 1-2, the arc extinguishing system of the present invention includes an arc extinguishing chamber 1, a reflection plate 2 and an arc extinguishing cover 3, wherein the reflection plate 2 is disposed on a static contact mechanism, the arc extinguishing chamber 1 is disposed on the reflection plate 2, and the arc extinguishing cover 3 is disposed on the arc extinguishing chamber 1. The static contact mechanism comprises a connecting plate 4, a static contact 5 and an arc striking plate 6 which are integrally formed, wherein the connecting plate 4 is used for connecting an external conductor, a static contact is arranged on the static contact 5 and is arranged corresponding to a movable contact of a movable contact (not shown in the figure) and used for realizing the closing and breaking of a circuit, and the arc striking plate 6 is used for introducing electric arc generated when the movable contact and the static contact 5 are broken into an arc extinguishing chamber 1. Be equipped with a plurality of arc extinguishing bars pieces 11 in the explosion chamber 1 for cutting electric arc and extinguish electric arc, arc extinguishing chamber 3 is used for keeping apart electric arc and arc extinguishing, reflecting plate 2 is used for avoiding the gaseous direction of electric arc and blocks the gaseous reflection of electric arc in the explosion chamber 1.
As shown in fig. 3, the fixed contact mechanism of this embodiment includes a connecting plate 4, a fixed contact 5, and a connecting plate 7 connected between the connecting plate 4 and the fixed contact 5, where the connecting plate 4, the fixed contact 5, an arc starting plate 6, and the connecting plate 7 are integrally formed by bending conductive metal plates, and a groove is formed on the connecting plate 7 and the fixed contact 5, a plate corresponding to the groove on the fixed contact 5 is bent and connected to form a first fixed contact plate 54, a fixed contact is arranged on the first fixed contact plate 54, and a plate corresponding to the groove on the connecting plate 7 is bent and connected to form the arc starting plate 6. In this embodiment, a connected avoiding groove is formed in the connecting plate 7 and the static contact 5, one end of the avoiding groove close to the connecting plate 7 is connected with the arc striking plate 6 in a bending manner, one end of the avoiding groove close to the static contact 5 is connected with the first static contact plate 54 in a bending manner, a static contact (not shown in the figure) is arranged on the first static contact plate 54, and the arc striking plate 6 and the first static contact plate 54 are formed by bending plates corresponding to the blanking avoiding groove. Of course, two avoidance grooves may be punched in the arc striking plate 6 and the first stationary contact plate 54, and the two avoidance grooves are bent to form the arc striking plate 6 and the first stationary contact plate 54, respectively, as required, or the avoidance grooves may be cut on the connecting plate 4 and the connecting plate 7 to form the arc striking plate 6. The conductive metal plate is a steel plate or a copper plate. Preferably, the connecting plate 4, the fixed contact 5, the connecting plate 7 and the arc striking plate 6 are integrally formed by copper-clad steel plates, the connecting plate 4, the fixed contact 5, the connecting plate 7 and the arc striking plate 6 are steel plates, and copper layers are coated outside the steel plates. The copper-clad steel material not only can increase the magnetic blowing effect and improve the effect of attracting electric arcs, but also can increase the wiring torsion and hardness of the connecting plate 4.
The connecting plate 4 is basically parallel to the static contact 5, the connecting plate 7 is obliquely arranged, the first static contact plate 54 is located on one side, close to the connecting plate 4, of the static contact 5, the first static contact plate 54 comprises a first bending section and a second bending section which are connected in a bending mode, one end of the first bending section is connected with the avoidance groove in the static contact 5 in a bending mode, the other end of the first bending section extends upwards or slightly obliquely upwards and is connected with the second bending section in a bending mode, the second bending section is basically parallel to the static contact 5 and extends towards the direction close to the connecting plate 4, the static contact is arranged on the second bending section, the first bending section and the static contact 5 form a U-shaped structure, the current flowing through the static contact 5 and the second bending section is opposite in direction, and electric repulsion force when the moving contact and the static contact 5 are matched can be avoided by utilizing Lorentz force. The arc striking plate 6 comprises an arc striking installation section and an arc foot section 61, the arc striking installation section is connected with the avoidance groove on the connecting plate 7 in a bending mode and is basically parallel to the static contact 5, the arc foot section 61 and the arc striking installation section are connected in a bending mode to form a V-shaped structure, the arc foot section 61 inclines downwards and extends towards the direction close to the first static contact plate 54, and the arc striking installation section and the end portion of the second bending section are close to and arranged at intervals. The static contact mechanism integrated into one piece of this embodiment, the shaping is buckled to run-on plate 6, and the electric arc that produces when static contact 5 was opened gets into explosion chamber 1 along the run-on angle of run-on plate 6 fast, can effectively promote the effect of striking, and the structure of conventional static contact riveting arc angle has electric arc anti-cluster and is detained on arc angle and contact.
As shown in fig. 4-7, the arc extinguishing chamber 1 includes a plurality of stacked arc-extinguishing grid pieces 11, one end of each arc-extinguishing grid piece 11 is provided with an arc-extinguishing gap, and the arc-extinguishing gap of the present embodiment includes a V-shaped gap portion located at the bottom and a U-shaped gap portion communicated with the V-shaped gap portion. Preferably, a root groove is further formed in the root of the V-shaped notch portion, and the root groove is U-shaped. Arc extinguishing chamber 1 still includes two arc extinguishing curb plates 12, and arc extinguishing bars piece 11 is installed between two arc extinguishing curb plates 12 through two sides, if be equipped with the draw-in groove on the arc extinguishing curb plate 12, is equipped with bellied card muscle on the side of arc extinguishing bars piece 11.
The reflecting plate 2 of the embodiment comprises a mounting base plate 21 and a front baffle plate 22 vertically arranged at one end of the mounting base plate 21, wherein a first through groove 211 is formed in the mounting base plate 21, two arc inlet side plates 23 are vertically arranged on the mounting base plate 21 and are respectively positioned at two sides of the first through groove 211, an arc inlet through groove 231 is formed between the two arc inlet side plates 23, the side edges of one side of the two arc inlet side plates 23 are respectively connected with the front baffle plate 22, an arc inlet groove 221 is formed in the front baffle plate 22, and the arc inlet groove 221 corresponds to and is communicated with the arc inlet through groove 231; the opposite sides of the two arc inlet side plates 23 are provided with guide inclined planes 232, so that the width of one end of the arc inlet through groove 231 close to the front baffle 22 is smaller than that of the other end. Two inclined planes on two arc curb plates 23 advance about reflecting plate 2 of this embodiment cooperate the explosion chamber structure to design, open the electric arc that produces to the moving contact and lead, have the pressurize effect simultaneously, reinforcing air-blast effect. In addition, the phenomenon of clamping stagnation of a mechanism and a contact cutter caused by electric arc and metal ion back spraying is prevented.
Preferably, a rear baffle 24 is further disposed at one end of the mounting base plate 21 away from the front baffle 22, the rear baffle 24 is obliquely disposed and corresponds to the connecting plate 7 of the static contact mechanism, and an opening groove 241 corresponding to and communicating with the first through groove 211 is disposed on the rear baffle 24. Further, two positioning side plates 25 are further connected between the rear baffle plate 24 and the two arc inlet side plates 23, the two positioning side plates 25 are respectively arranged on two sides of the first through groove 211, and the height of the positioning side plate 25 is smaller than that of the arc inlet side plate 23.
The mounting base plate 21 is mounted on a static contact 5 of the static contact mechanism, the back baffle 24 corresponds to the connecting plate 7, the end of the back baffle 24 is bent and lapped on the connecting plate 4, and a static contact of the static contact 5 is located in the arc inlet through groove 231. Preferably, a hook structure is arranged on the bottom side of the mounting base plate 21, and is used for being clamped with the static contact 5 and enabling the mounting base plate 21 and the static contact 5 to be arranged at an interval, and one end of the moving contact, which is provided with the moving contact, extends into the arc-entering through groove 231 through the arc-entering groove 221 and swings to be matched with the static contact 5.
In mounting plate 21 top to and form the space of installation explosion chamber 1 between preceding baffle 22 and the backplate 24, explosion chamber 1 is installed in the space, the arc extinguishing curb plate 12 is fixed a position in the location curb plate 25 outside, advance in the arc extinguishing gap of arc extinguishing curb plate 23 a plurality of arc extinguishing bars piece 11 that stretch into explosion chamber 1, the one end side of arc extinguishing curb plate 12 docks with preceding baffle 22, with explosion chamber 1 relatively sealed. Preferably, the arc inlet side plate 23 has a width corresponding to a U-shaped notch portion of the arc extinguishing notch.
Preferably, a back-spraying side plate 26 is further arranged between the outer side of the two arc inlet side plates 23 far away from the arc inlet through groove 231 and the front baffle 22, the back-spraying side plate 26 is obliquely arranged to form a back-spraying inclined surface for guiding the reflected arc gas, and preferably, the height of the back-spraying side plate 26 is smaller than that of the arc inlet side plate 23.
As shown in fig. 7, 3 covers of arc-extinguishing chamber are in explosion chamber 1 top, and arc-extinguishing chamber 3 is including roof 31, and roof 31's both sides side is equipped with the recess that corresponds with the side on 12 of the arc extinguishing curb plate of explosion chamber 1, fixes a position on 12 sides on the arc extinguishing curb plate through the recess card. The side edge of one end of the installation top plate 31 close to the front baffle 22 is downwards bent to form a first top plate bending plate 32 corresponding to the front baffle 22, the first top plate bending plate 32 is provided with a top plate arc inlet groove 33 corresponding to the arc inlet groove 221, and the installation top plate 31 is provided with a top plate hole 34 for yielding when the moving contact is separated from the brake. The arc extinguishing chamber 3 and the reflecting plate 2 are arranged separately, so that the arc extinguishing chamber is convenient to mount and can be integrally arranged as required.
The arc after moving contact and static contact 5 divide the fracture can get into explosion chamber 1, can accelerate the arc and get into explosion chamber 1 through striking plate 6, moreover striking installation section and the bending of arc foot section 61 of striking plate 6 upwards extend the setting, and set up with static contact 5 and link plate 4 interval, make the arc root can shift to the explosion chamber the inside fast, and jump up, can make full use of below the explosion chamber and the arc extinguishing bars piece above effectively cut electric arc together. Moreover, the arc through groove 231 that advances that the direction inclined plane 232 of the arc curb plate 23 that advances of reflecting plate 2 formed is favorable to the direction to electric arc, and when the gas in the arc extinguish chamber was back-sprayed after electric arc was extinguished, can be leaded into between the arc curb plate 23 outside and the arc extinguishing curb plate 12, was blockked by preceding baffle 22, and back-spraying curb plate 26 does benefit to the guide gas moreover for other fast flows, and upward flow do benefit to and prevent electric arc and metal ion post-spraying.
The utility model also provides a circuit breaker comprising the arc extinguishing system.
The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (10)
1. The utility model provides an arc extinguishing system, explosion chamber (1) and reflecting plate (2), reflecting plate (2) set up on static contact mechanism, and explosion chamber (1) sets up on reflecting plate (2), its characterized in that: the reflecting plate (2) comprises a mounting base plate (21) and a front baffle plate (22) vertically arranged at one end of the mounting base plate (21), a first through groove (211) is formed in the mounting base plate (21), two arc inlet side plates (23) are vertically arranged on the mounting base plate (21) and are respectively positioned on two sides of the first through groove (211), an arc inlet through groove (231) is formed between the two arc inlet side plates (23), the side edges of one side of each of the two arc inlet side plates (23) are respectively connected with the front baffle plate (22), an arc inlet groove (221) is formed in the front baffle plate (22), and the arc inlet groove (221) corresponds to and is communicated with the arc inlet through groove (231); the two arc inlet side plates (23) are provided with guide inclined planes (232) on opposite sides, so that the width of one end, close to the front baffle (22), of the arc inlet through groove (231) is smaller than that of the other end of the arc inlet through groove.
2. The arc extinguishing system of claim 1, wherein: arc extinguishing chamber (1) includes arc extinguishing bars piece (11) of a plurality of range upon range of settings, and the one end of arc extinguishing bars piece (11) is equipped with the arc extinguishing breach, the arc extinguishing breach including the V type breach part that is located the bottom and with the U type breach part of V style of calligraphy breach part intercommunication.
3. The arc extinguishing system of claim 2, wherein: the arc inlet side plate (23) extends into arc extinguishing gaps of a plurality of arc extinguishing grid pieces (11) of the arc extinguishing chamber (1), and the width of the arc inlet side plate (23) corresponds to the U-shaped gap of the arc extinguishing gaps.
4. The arc extinguishing system of claim 1, wherein: a reverse spraying side plate (26) is further arranged between the outer side of each of the two arc inlet side plates (23) far away from the arc inlet through groove (231) and the front baffle (22), the reverse spraying side plate (26) is obliquely arranged to form a reverse spraying inclined plane, and the height of the reverse spraying side plate (26) is smaller than that of the arc inlet side plate (23).
5. The arc extinguishing system of claim 1, wherein: the static contact mechanism comprises a connecting plate (4), a static contact (5) and a connecting plate (7) connected between the connecting plate (4) and the static contact (5), an integrally formed arc striking plate (6) is arranged between the static contacts of the connecting plate (4) and the static contact (5), and the connecting plate (4), the static contact (5), the arc striking plate (6) and the connecting plate (7) are integrally bent and formed by conductive metal plates.
6. The arc extinguishing system of claim 5, wherein: the installation base plate (21) is far away from one end of the front baffle (22) and is further provided with a rear baffle (24), the rear baffle (24) is obliquely arranged to correspond to the connecting plate (7) of the static contact mechanism, an open slot (241) corresponding to and communicated with the first through slot (211) is formed in the rear baffle (24), two positioning side plates (25) are further connected between the rear baffle (24) and the two arc inlet side plates (23), the two positioning side plates (25) are respectively arranged on two sides of the first through slot (211), and the height of each positioning side plate (25) is smaller than that of each arc inlet side plate (23).
7. The arc extinguishing system of claim 5, wherein: the static contact (5) and the connecting plate (7) are provided with avoiding grooves, the plates corresponding to the avoiding grooves on the static contact (5) are bent and connected to form a first static contact plate (54), the first static contact plate (54) is provided with a static contact, and the plates corresponding to the avoiding grooves on the connecting plate (7) are bent and connected to form the arc striking plate (6).
8. The arc extinguishing system of claim 7, wherein: the connecting plate (4) is parallel to the static contact (5), the connecting plate (7) is obliquely arranged, the first static contact plate (54) is positioned on one side, close to the connecting plate (4), of the static contact (5), the first static contact plate (54) comprises a first bending section and a second bending section which are connected in a bending mode, one end of the first bending section is connected with an avoiding groove in the static contact (5) in a bending mode, the other end of the first bending section is connected with the second bending section in a bending mode, the second bending section is parallel to the static contact (5) and extends towards the direction close to the connecting plate (4), a static contact is arranged on the second bending section, and the second bending section, the first bending section and the static contact (5) form a U-shaped structure;
the arc striking plate (6) comprises an arc striking installation section and arc foot sections (61), the arc striking installation section is connected with the avoidance groove on the connecting plate (7) in a bending mode and is parallel to the static contact (5), the arc foot sections (61) are connected with the arc striking installation section in a bending mode to form a V-shaped structure, the arc foot sections (61) incline downwards and extend towards the direction close to the first static contact plate (54), and the arc striking installation section and the end portion of the second bending section are close to and arranged at intervals.
9. The arc extinguishing system of claim 1, wherein: the arc extinguishing chamber further comprises an arc extinguishing cover (3), and the arc extinguishing cover (3) is arranged on the arc extinguishing chamber (1).
10. A circuit breaker, characterized by: an arc extinguishing system including the arc extinguishing system of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123325125.6U CN217009105U (en) | 2021-12-27 | 2021-12-27 | Arc extinguishing system and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123325125.6U CN217009105U (en) | 2021-12-27 | 2021-12-27 | Arc extinguishing system and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217009105U true CN217009105U (en) | 2022-07-19 |
Family
ID=82386300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123325125.6U Active CN217009105U (en) | 2021-12-27 | 2021-12-27 | Arc extinguishing system and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217009105U (en) |
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2021
- 2021-12-27 CN CN202123325125.6U patent/CN217009105U/en active Active
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