CN111710570A - Automatic partition type arc-isolating cover for circuit breaker - Google Patents
Automatic partition type arc-isolating cover for circuit breaker Download PDFInfo
- Publication number
- CN111710570A CN111710570A CN202010707987.6A CN202010707987A CN111710570A CN 111710570 A CN111710570 A CN 111710570A CN 202010707987 A CN202010707987 A CN 202010707987A CN 111710570 A CN111710570 A CN 111710570A
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- Prior art keywords
- guide rod
- guide
- rack
- shell
- installation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses an automatic partition type arc-isolating cover for a circuit breaker, which comprises an installation shell, wherein the installation shell is of a cuboid structure, the top of the installation shell is provided with an avoiding groove, the installation shell is internally provided with a holding shell which is a cuboid shell with an opening at the bottom, the holding shell is positioned at the bottom of the installation shell, the bottom of the installation shell is provided with a vent, the wall of the holding shell is provided with a vent hole, the installation shell is internally provided with an arc extinguishing mechanism, a switching-on/off handle and a first guide rod, the first guide rod is horizontally arranged in the mounting shell, when a circuit is short-circuited, the current flowing through the electromagnet is larger, the electromagnet attracts the armature, therefore, the switching-on and switching-off handle is attracted to move towards the direction close to the electromagnet along the guiding direction of the guide rod I, and the arc extinguishing mechanism can be used for arc extinguishing between the contact I and the contact II, so that the circuit is protected from being broken.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to an automatic isolating arc shield for a circuit breaker.
Background
Arcing is a gas discharge phenomenon, a transient spark generated by the passage of current through some insulating medium (e.g., air). The arc is a self-sustaining gas-conducting, in which the majority of the carriers are electrons generated by primary electron emission, the electrons escape from the metal surface of the contact due to the primary electron emission, and the gas atoms or molecules in the gap are ionized to generate electrons and ions. In addition, electron or ion bombardment of the emission surface can in turn cause secondary electron emission. When the ion concentration in the gap is large enough, the gap is broken down by electricity to generate electric arcs, the electric arcs prolong the sectional time of a circuit, and insulating materials near electric shock and electric shock are burnt, so that people get electric shock when the electric shock is serious.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide an automatic isolating arc shield for a circuit breaker.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.
An automatic isolating arc chute for a circuit breaker, comprising:
the installation casing, the installation casing is the cuboid structure, the groove of dodging has been seted up at the top of installation casing, the installation casing in be provided with the holding casing, the holding casing is bottom open-ended cuboid casing, the holding casing is in the bottom of installation casing, the vent has been seted up to the bottom of installation casing, the ventilation hole has been seted up to the wall portion of holding casing, be provided with arc extinguishing mechanism, divide-shut brake handle, guide arm one in the installation casing, guide arm one level set up in the installation casing, guide arm one is close to the top of installation casing, guide arm one is on a parallel with the length direction of installation casing, guide arm one is provided with two and is parallel arrangement, divide-shut brake handle slip cap locate guide arm one, the top of divide-shut brake handle passes and dodges the groove and stretches out outside the installation casing, the installation casing in be provided with the trigger mechanism who, The electromagnet is arranged in the installation shell and is positioned on the side wall of the installation shell, the electromagnet is close to a switching-off handle and is arranged opposite to the switching-off handle, the electromagnet is connected with a wire, the electromagnet is connected with the switching-off handle through the wire I, an armature is arranged on one plate surface of the switching-off handle, the armature is arranged opposite to the electromagnet, a wire II is connected to the other plate surface of the switching-off handle, the wire II penetrates through the accommodating shell and extends into the accommodating shell, the end part of the wire II is provided with a contact I, one side of the contact I is connected with the contact II, the contact II is connected with a wire III, the rack I is horizontally connected to the lower end part of the switching-off handle, the connection plate is arranged on the inner wall of the installation shell, the gear I is movably connected to the connection plate, and the.
As a further improvement of the technical scheme, the arc extinguishing mechanism comprises a transmission assembly and an arc extinguishing assembly, wherein a power input end of the transmission assembly is connected with a first gear, a power output end of the transmission assembly is connected with the arc extinguishing assembly, the transmission assembly comprises a second guide rod, a push plate, a push block, a guide groove, a second rack and a third guide rod, the second guide rod is horizontally arranged in the installation shell, the second guide rod is perpendicular to the first guide rod, the two guide rods are arranged in parallel, the push plate is sleeved on the second guide rod, the push block is connected to the bottom of the push plate, the guide groove is formed in the plate surface of the push block, the guide groove is obliquely arranged, a convex block is arranged on the plate surface of the first gear, the convex block is close to the push plate, the upper end surface of the push plate is an arc-shaped inclined surface, when the first gear rotates, the convex block can be abutted against the arc-, the bottom of the mounting shell is horizontally provided with a guide rail, the guide rail is parallel to the length direction of the mounting shell, the bottom of the second rack is provided with a sliding groove which is in sliding guide fit with the guide rail, the end part of the second rack is provided with a guide pillar, and the guide pillar is inserted into the guide groove in a matching manner.
As a further improvement of the technical scheme, the arc extinguishing assembly comprises a second gear, an air deflector and a connecting shaft, wherein the air deflector is a rectangular plate body, the connecting shaft is arranged at the side wall of the air deflector and close to the upper end part of the air deflector, the air deflector is movably connected in the accommodating shell through the connecting shaft, a plurality of air deflectors are arranged in the accommodating shell and evenly arranged at intervals along the length direction of the accommodating shell, the second gear is coaxially and fixedly sleeved on the connecting shaft, a second rack passes through the wall part of the accommodating shell and extends into the accommodating shell, and the second rack is meshed with the second gear.
As a further improvement of the technical scheme, a third guide rod is arranged in the accommodating shell, the third guide rod is horizontally arranged and is parallel to the second rack, the third guide rod is positioned on one side of the second rack, a lantern ring is arranged on the side wall of the second rack, the second rack is sleeved on the third guide rod through the lantern ring, a spring is sleeved on the third guide rod, one end of the spring is in contact with the lantern ring, and the other end of the spring is in contact with the wall of the accommodating shell.
Compared with the prior art, the invention has the advantages that when a circuit is short-circuited in the using process, the current flowing through the electromagnet is larger, the electromagnet attracts the armature, the arc extinguishing mechanism works to form an electric arc between the first contact and the second contact for arc extinguishing, so that the circuit is protected from being broken, in the swinging process of the air deflectors, the air inlet gaps of the two adjacent air deflectors are continuously changed, so that the contact part of the electric arc and the slit wall is continuously changed, and the air inlet cooling arc extinguishing effect is better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the internal structure of the mounting case of the present invention.
Fig. 3 is a schematic diagram of the trigger mechanism and the arc extinguishing mechanism of the present invention.
Fig. 4 is a schematic view of the installation of the arc extinguishing mechanism of the present invention.
Fig. 5 is a schematic view of the trigger mechanism of the present invention.
FIG. 6 is a schematic view of the transmission assembly of the present invention.
Fig. 7 is a schematic view of the transmission assembly and the arc extinguishing mechanism of the present invention.
Fig. 8 is a schematic view illustrating the installation of the air deflector according to the present invention.
FIG. 9 is a schematic view of the wind deflector and the second gear of the present invention.
Labeled as:
10. installing a shell; 110. an avoidance groove; 120. a switching-on and switching-off handle; 130. a first guide rod; 140. an accommodating case; 150. a first contact; 160. a second contact; 170. a guide rail; 180. a vent;
20. a trigger mechanism; 210. an electromagnet; 220. a first rack; 230. a connecting plate; 240. a first gear; 241. a bump;
30. an arc extinguishing mechanism; 310. a transmission assembly; 311. a second guide rod; 312. pushing the plate; 313. a push block; 314. a guide groove; 315. a second rack; 316. a third guide rod; 317. a spring; 318. a guide post; 320. an arc extinguishing assembly; 321. a second gear; 322. an air deflector; 323. and (7) connecting the shafts.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 9, a self-closing arc chute for a circuit breaker includes:
the installation shell 10 is a cuboid structure, the top of the installation shell 10 is provided with an avoiding groove 110, the installation shell 10 is internally provided with a containing shell 140, the containing shell 140 is a cuboid shell with an opening at the bottom, the containing shell 140 is positioned at the bottom of the installation shell 10, the bottom of the installation shell 10 is provided with a vent 180, the wall of the containing shell 140 is provided with a vent hole, the installation shell 10 is internally provided with an arc extinguishing mechanism 30, a switching handle 120 and a guide rod one 130, the guide rod one 130 is horizontally arranged in the installation shell 10, the guide rod one 130 is close to the top of the installation shell 10, the guide rod one 130 is parallel to the length direction of the installation shell 10, the guide rod one 130 is provided with two guide rods which are arranged in parallel, the switching handle 120 is slidably sleeved on the guide rod one 130, and the top end of the switching handle 120 passes through the avoiding groove 110 and, the installation shell 10 is internally provided with a trigger mechanism 20 for triggering the arc extinguishing mechanism 30 to work, the trigger mechanism 20 comprises an electromagnet 210, a first rack 220, a connecting plate 230 and a first gear 240, the electromagnet 210 is arranged in the installation shell 10 and is positioned on the side wall of the installation shell 10, the electromagnet 210 is close to the opening and closing handle 120 and is arranged opposite to the opening and closing handle 120, the electromagnet is connected with a conducting wire, the electromagnet 210 is connected with the opening and closing handle 120 through the first conducting wire, an armature is arranged on one plate surface of the opening and closing handle 120 and is arranged opposite to the electromagnet 210, the other plate surface of the opening and closing handle 120 is connected with a second conducting wire, the second conducting wire penetrates through the accommodating shell 140 and extends into the accommodating shell 140, the end part of the second conducting wire is provided with a first contact 150, one side of the first contact 150 is in contact with a second contact 160, the second contact 160 is connected with a third conducting wire, the connecting plate 230 is arranged on the inner wall of the installation shell 10, the first gear 240 is movably connected to the connecting plate 230, the first gear 240 is meshed with the first rack 220, when a short circuit occurs in the circuit, the current through the electromagnet 210 is large, the electromagnet 210 attracts the armature, thereby attracting the opening and closing handle 120 to move in the direction approaching the electromagnet 210 along the guiding direction of the first guide rod 130, then the first contact 150 and the second contact 160 are separated, an electric arc is formed between the first contact 150 and the second contact 160, in the process that the opening and closing handle 120 moves towards the direction close to the electromagnet 210 along the guiding direction of the first guide rod 130, the opening and closing handle 120 drives the first rack 220 to move, thereby drive gear 240 and rotate, gear 240 can drive arc extinguishing mechanism 30 work in the rotation process, and arc extinguishing mechanism 30 work can be to forming the electric arc between contact 150, contact 160 and carrying out the arc extinguishing to open circuit protection to the circuit.
As shown in fig. 2 to 8, the arc extinguishing mechanism 30 includes a transmission component 310 and an arc extinguishing component 320, a power input end of the transmission component 310 is connected to a first gear 240, a power output end of the transmission component 310 is connected to the arc extinguishing component 320, the transmission component 310 includes a second guide rod 311, a push plate 312, a push block 313, a guide groove 314, a second rack 315, and a third guide rod 316, the second guide rod 311 is horizontally disposed in the installation housing 10, the second guide rod 311 is perpendicular to the first guide rod 130, the two guide rods 311 are disposed in parallel, the push plate 312 is sleeved on the second guide rod 311, the push block 313 is connected to a bottom of the push plate 312, the guide groove 314 is disposed on a plate surface of the push block 313, the guide groove 314 is disposed in an inclined manner, a projection 241 is disposed on the plate surface of the first gear 240, the projection 241 is close to the push plate 312, an upper end surface of the push plate 312 is an arc inclined surface, when the first, therefore, the push plate 312 moves in the direction away from the first gear 240 along the second guide rod 311, the guide rail 170 is horizontally arranged at the bottom of the mounting housing 10, the guide rail 170 is parallel to the length direction of the mounting housing 10, a sliding groove in sliding guiding fit with the guide rail 170 is arranged at the bottom of the second rack 315, a guide post 318 is arranged at the end of the second rack 315, the guide post 318 is inserted into the guide groove 314 in a matching manner, in the process that the push plate 312 drives the push block 313 to move in the direction away from the first gear 240 along the direction of the second guide rod 311, the guide groove 314 pushes against the guide post 318, so that the second rack 315 slides along the guide rail 170, the second rack 315 is connected with the arc extinguishing component 320, so as to drive the arc extinguishing component 320 to move, and arc extinguishing can be formed between the first contact 150 and the.
As shown in fig. 7-9, the arc extinguishing assembly 320 includes a second gear 321, a second air guiding plate 322, and a connecting shaft 323, the second air guiding plate 322 is a rectangular plate, the connecting shaft 323 is disposed at a side wall of the second air guiding plate 322 and near an upper end of the second air guiding plate 322, the second air guiding plate 322 is movably connected to the accommodating case 140 through the connecting shaft 323, the second air guiding plate 322 is disposed with a plurality of second gears 321 arranged at regular intervals along a length direction of the accommodating case 140, the second gear 321 is coaxially and fixedly sleeved on the connecting shaft 323, the second rack 315 penetrates through a wall of the accommodating case 140 and extends into the accommodating case 140, the second rack 315 is engaged with the second gear 321, the second rack 315 drives the second gear 321 to rotate along a guide rail 170 in a sliding process, so as to drive the second air guiding plate 322 to swing, an air inlet gap between two adjacent air guiding plates 322 is constantly changed in a swinging process of the plurality, the air inlet cooling arc extinguishing effect is better.
As shown in fig. 4 and 7, a third guide rod 316 is disposed in the accommodating case 140, the third guide rod 316 is horizontally disposed and parallel to the second rack 315, the third guide rod 316 is located at one side of the second rack 315, a sleeve ring is disposed at a side wall of the second rack 315, the second rack 315 is sleeved on the third guide rod 316 through the sleeve ring, a spring 317 is sleeved on the third guide rod 316, one end of the spring 317 is in contact with the sleeve ring, the other end of the spring 317 is in contact with a wall of the accommodating case 140, and the elastic force of the spring 317 can push the second rack 315 to reset, so that the air inlet gap between two adjacent air deflectors 322 is changed, and then the transmission assembly 310.
The working principle is as follows:
in the using process of the invention, when a circuit is short-circuited, the current flowing through the electromagnet 210 is large, the electromagnet 210 attracts the armature, so that the opening and closing handle 120 is attracted to move towards the direction close to the electromagnet 210 along the guiding direction of the guide rod I130, then the contact I150 is separated from the contact II 160, an electric arc is formed between the contact I150 and the contact II 160, in the process that the opening and closing handle 120 moves towards the direction close to the electromagnet 210 along the guiding direction of the guide rod I130, the opening and closing handle 120 drives the rack I220 to move, so that the gear I240 is driven to rotate, the gear I240 can drive the arc extinguishing mechanism 30 to work in the rotating process, the arc extinguishing mechanism 30 can work to extinguish the electric arc formed between the contact I150 and the contact II 160, so as to protect the circuit from being broken, the push plate 312 drives the push block 313 to move towards the direction far away from the gear I240 along, the guide groove 314 pushes against the guide post 318, so that the second rack 315 slides along the guide rail 170, the second rack 315 is connected with the arc extinguishing component 320, so as to drive the arc extinguishing component 320 to move, the arc extinguishing component 320 moves to extinguish an arc formed between the first contact 150 and the second contact 160, the second rack 315 drives the second rack 321 to rotate along the sliding process of the guide rail 170, so as to drive the air deflectors 322 to swing, in the swinging process of the air deflectors 322, air inlet gaps between two adjacent air deflectors 322 are continuously changed, so that the contact position of the arc and a slit wall is continuously changed, and the air inlet cooling arc extinguishing effect is better.
It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.
Claims (5)
1. An automatic block type arc-isolating shield for a circuit breaker is characterized by comprising:
the installation casing, the installation casing is the cuboid structure, the groove of dodging has been seted up at the top of installation casing, the installation casing in be provided with the holding casing, the holding casing is bottom open-ended cuboid casing, the holding casing is in the bottom of installation casing, the vent has been seted up to the bottom of installation casing, the ventilation hole has been seted up to the wall portion of holding casing, be provided with arc extinguishing mechanism, divide-shut brake handle, guide arm one in the installation casing, guide arm one level set up in the installation casing, guide arm one is close to the top of installation casing, guide arm one is on a parallel with the length direction of installation casing, guide arm one is provided with two and is parallel arrangement, divide-shut brake handle slip cap locate guide arm one, the top of divide-shut brake handle passes and dodges the groove and stretches out outside the installation casing, the installation casing in be provided with the trigger mechanism who, The electromagnet is arranged in the installation shell and is positioned on the side wall of the installation shell, the electromagnet is close to a switching-off handle and is arranged opposite to the switching-off handle, the electromagnet is connected with a wire, the electromagnet is connected with the switching-off handle through the wire I, an armature is arranged on one plate surface of the switching-off handle, the armature is arranged opposite to the electromagnet, a wire II is connected to the other plate surface of the switching-off handle, the wire II penetrates through the accommodating shell and extends into the accommodating shell, the end part of the wire II is provided with a contact I, one side of the contact I is connected with the contact II, the contact II is connected with a wire III, the rack I is horizontally connected to the lower end part of the switching-off handle, the connection plate is arranged on the inner wall of the installation shell, the gear I is movably connected to the connection plate, and the.
2. The automatic isolating arc shield for the circuit breaker according to claim 1, wherein the arc extinguishing mechanism comprises a transmission assembly and an arc extinguishing assembly, a power input end of the transmission assembly is connected with the first gear, a power output end of the transmission assembly is connected with the arc extinguishing assembly, the transmission assembly comprises a second guide rod, a push plate, a push block, a guide groove, a second rack and a third guide rod, the second guide rod is horizontally arranged in the installation shell, the second guide rod is perpendicular to the first guide rod, the two guide rods are arranged in parallel, the push plate is sleeved on the second guide rod, the push block is connected to the bottom of the push plate, the guide groove is formed in the plate surface of the push block, the guide groove is obliquely arranged, a convex block is arranged on the plate surface of the first gear, the convex block is close to the push plate, the upper end surface of the push plate is an arc-shaped inclined surface, and when the first gear rotates, so that the push plate moves along the direction of the guide rod II to the direction far away from the gear I.
3. The automatic isolating arc chute for the circuit breaker as claimed in claim 2, wherein the bottom of the mounting housing is horizontally provided with a guide rail parallel to the length direction of the mounting housing, the bottom of the second rack is provided with a sliding slot forming a sliding guiding fit with the guide rail, and the end of the second rack is provided with a guide post, which is inserted into the guide slot in a matching manner.
4. The automatic isolating arc chute cover for the circuit breaker as claimed in claim 2, wherein the arc extinguishing assembly comprises a second gear, a wind deflector and a connecting shaft, the wind deflector is a rectangular plate, the connecting shaft is disposed at a side wall of the wind deflector and close to an upper end portion of the wind deflector, the wind deflector is movably connected in the accommodating shell through the connecting shaft, the wind deflector is provided with a plurality of wind deflectors, the wind deflector is uniformly arranged at intervals along a length direction of the accommodating shell, the second gear is coaxially and fixedly sleeved on the connecting shaft, the second rack passes through a wall portion of the accommodating shell and extends into the accommodating shell, and the second rack is meshed with the second gear.
5. The automatic isolating arc-isolating cover for the circuit breaker as claimed in claim 2, wherein a third guide rod is disposed in the housing, the third guide rod is disposed horizontally and parallel to the second rack, the third guide rod is disposed at one side of the second rack, a sleeve ring is disposed at a side wall of the second rack, the second rack is sleeved on the third guide rod through the sleeve ring, the third guide rod is sleeved with a spring, one end of the spring is in contact with the sleeve ring, and the other end of the spring is in contact with a wall of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010707987.6A CN111710570A (en) | 2020-07-22 | 2020-07-22 | Automatic partition type arc-isolating cover for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010707987.6A CN111710570A (en) | 2020-07-22 | 2020-07-22 | Automatic partition type arc-isolating cover for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111710570A true CN111710570A (en) | 2020-09-25 |
Family
ID=72547563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010707987.6A Withdrawn CN111710570A (en) | 2020-07-22 | 2020-07-22 | Automatic partition type arc-isolating cover for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111710570A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164630A (en) * | 2020-09-29 | 2021-01-01 | 广东求精电气有限公司 | Circuit breaker |
| CN115440532A (en) * | 2022-10-09 | 2022-12-06 | 国网山东省电力公司淄博供电公司 | Static contact insulation sheath temperature indicating opening and closing type knife switch |
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| CN211045347U (en) * | 2019-11-14 | 2020-07-17 | 杭州程翔电气有限公司 | High insulation shell type circuit breaker |
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| EP0144799A2 (en) * | 1983-11-24 | 1985-06-19 | BROWN, BOVERI & CIE Aktiengesellschaft | Protection switch |
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| US20190066939A1 (en) * | 2015-10-08 | 2019-02-28 | Abb Schweiz Ag | Switching Device |
| CN107910216A (en) * | 2017-11-13 | 2018-04-13 | 东莞市松研智达工业设计有限公司 | A kind of arc-extinguishing mechanism of power circuit breaker |
| CN110137046A (en) * | 2019-06-21 | 2019-08-16 | 安徽科盟电子科技有限公司 | A kind of tripping device for circuit breaker |
| CN209929255U (en) * | 2019-07-26 | 2020-01-10 | 东北石油大学 | Magnetic blow-out arc-extinguishing breaker structure |
| CN211045347U (en) * | 2019-11-14 | 2020-07-17 | 杭州程翔电气有限公司 | High insulation shell type circuit breaker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164630A (en) * | 2020-09-29 | 2021-01-01 | 广东求精电气有限公司 | Circuit breaker |
| CN115440532A (en) * | 2022-10-09 | 2022-12-06 | 国网山东省电力公司淄博供电公司 | Static contact insulation sheath temperature indicating opening and closing type knife switch |
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