CN113593995A - Circuit open circuit arc extinguishing structure - Google Patents
Circuit open circuit arc extinguishing structure Download PDFInfo
- Publication number
- CN113593995A CN113593995A CN202110884419.8A CN202110884419A CN113593995A CN 113593995 A CN113593995 A CN 113593995A CN 202110884419 A CN202110884419 A CN 202110884419A CN 113593995 A CN113593995 A CN 113593995A
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- Prior art keywords
- arc extinguishing
- fixedly connected
- rod
- circuit
- sliding
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- 239000002184 metal Substances 0.000 claims abstract description 51
- 238000007664 blowing Methods 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000005389 magnetism Effects 0.000 claims description 6
- 229910018503 SF6 Inorganic materials 0.000 claims description 3
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 3
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 20
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 230000008033 biological extinction Effects 0.000 description 10
- 238000001125 extrusion Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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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
- H01H73/06—Housings; Casings; Bases; Mountings
-
- 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
-
- 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
- H01H73/20—Terminals; Connections
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a circuit breaking arc extinguishing structure, which combines air-blast arc extinguishing and metal grid arc extinguishing, improves the arc extinguishing effect and reduces the arc extinguishing time; the top metal grid sheet can be close to the cable connector when the circuit is disconnected, and a better arc extinguishing effect is achieved. And is far away from the cable joint after being switched on and switched off, thereby preventing electric leakage; the three air blowing ports are arranged on the air nozzle, so that the comprehensive longitudinal-blowing arc extinguishing and transverse-blowing arc extinguishing effects are achieved, and meanwhile, air sprayed by the air nozzle is filled in the cavity inside the shell of the circuit breaker, so that the circuit breaker is prevented from being connected by mistake after being disconnected; after the circuit breaker is connected, the cable is conducted to enable the coil to be electrified, the piston is driven to reset through the magnetic metal disc, and gas in the cavity inside the shell of the circuit breaker is pumped away, so that the cable connector and the connecting piece are connected more tightly, the mistaken disconnection is prevented, the gas can be pumped away for the next use, and the arc extinguishing gas loss is saved; when the cable joint and the connecting piece are disconnected, the coil is powered off, the piston is released, accurate air injection is ensured, and the sensitive and stable response is ensured through mechanical action.
Description
Technical Field
The invention relates to the field of circuit breaking arc extinguishing, in particular to a circuit breaking arc extinguishing structure.
Background
The arc extinction of circuit breaking generally has two kinds of air blast arc extinction and metal grid plate arc extinction, and two kinds of arc extinction modes respectively have merits and demerits. The metal grid sheets are generally arranged at the two transverse sides of the circuit connector, when the connector is disconnected, the generated long arc is divided into a plurality of short arcs, and the purpose of extinguishing the arc is achieved by utilizing the near-cathode effect of the alternating current arc and the near-pole voltage drop of the direct current arc;
therefore, for the arc extinction of the metal grid plate, the closer the metal grid plate to the circuit connector, the better the arc extinction effect is, but the phenomenon that the metal grid plate is over-entered from the circuit connector easily causes electric leakage and even current breakdown and metal grid plate conduction occurs. Therefore, the metal grid sheet circuit connectors are required to be spaced at a certain safety distance.
The gas-blast arc extinction is of a transverse-blast type and a longitudinal-blast type, the insulating part of the transverse-blast arc extinction device is complex in structure, high overvoltage can be caused by over-strong transverse-blast when current is small, the longitudinal-blast arc extinction is poor in large-current on-off effect, and the arc extinction time is long.
Disclosure of Invention
The invention aims to provide a circuit breaking arc extinguishing structure, which combines air-blast arc extinguishing and metal grid arc extinguishing, improves the arc extinguishing effect and reduces the arc extinguishing time; the top metal grid sheet can be close to the cable connector when the circuit is disconnected, and a better arc extinguishing effect is achieved. And is far away from the cable joint after being switched on and switched off, thereby preventing electric leakage; the three air blowing ports are arranged on the air nozzle, so that the comprehensive longitudinal-blowing arc extinguishing and transverse-blowing arc extinguishing effects are achieved, and meanwhile, air sprayed by the air nozzle is filled in the cavity inside the shell of the circuit breaker, so that the circuit breaker is prevented from being connected by mistake after being disconnected; after the circuit breaker is connected, the cable is conducted to enable the coil to be electrified, the piston is driven to reset through the magnetic metal disc, and gas in the cavity inside the shell of the circuit breaker is pumped away, so that the cable connector and the connecting piece are connected more tightly, the mistaken disconnection is prevented, the gas can be pumped away for the next use, and the arc extinguishing gas loss is saved; when the cable joint and the connecting piece are disconnected, the coil is powered off, the piston is released, accurate air injection is ensured, and the sensitive and stable response is ensured through mechanical action.
A circuit breaking arc extinguishing structure comprises a circuit breaker shell and an air cylinder, wherein a cable connector, a connecting piece, a sliding rod, a top metal grid piece and side metal grid pieces are arranged in a cavity in the circuit breaker shell, the top metal grid piece is positioned at the top of the cable connector and fixedly connected to the lower side of the sliding rod, two groups of the side metal grid pieces are arranged and are respectively positioned on two sides below the cable connector, and the top metal grid piece and the side metal grid pieces are both grounded;
cable joint fixed connection on the circuit breaker shell and with outside cable junction, be equipped with on the connecting piece and connect inserted sheet, action bars and jet-propelled head, connect inserted sheet fixed connection in the connecting piece upper end and can divide and shut with the cable joint cooperation, action bars fixed connection is at the connecting piece lower extreme, and the action bars lower extreme wears out the circuit breaker shell and sliding connection with it, the both sides of connecting piece are equipped with the slider, slider sliding connection is in circuit breaker shell inner wall, and still sliding connection has the connecting rod in the circuit breaker shell inner wall, connecting rod and slider sliding connection just upper and lower both ends difference fixedly connected with bottom plate and connecting plate about it, bottom plate and connecting plate all sliding connection are in circuit breaker shell inner wall, and two connecting plates still fixed connection are in the both sides of slide bar.
Preferably, the air nozzle passes through breather pipe and inflator intercommunication, divide into arc extinguishing gas chamber and electromagnetic drive chamber about the inflator is inside, sliding connection has the piston in the arc extinguishing gas chamber, electromagnetic drive chamber fixedly connected with coil, coil and cable junction, and sliding connection has the actuating lever in it, the left end and the piston fixed connection of actuating lever, on its right-hand member fixedly connected with takes the magnetism metal disc, take magnetism metal disc and electromagnetic drive chamber sliding connection.
Preferably, the right end of the electromagnetic driving cavity is further communicated with a compressed gas cavity, and the compressed gas cavity is filled with compressed gas.
Preferably, the right side plate of the electromagnetic driving cavity is further connected with a compression spring, and the other end of the compression spring is connected with a magnetic metal disc.
Preferably, the arc extinguishing gas cavity is filled with arc extinguishing gas, and the arc extinguishing gas includes, but is not limited to, sulfur hexafluoride.
Preferably, the lower end of the operating rod is connected with a push-pull handle.
Preferably, the lower extreme of action bars is equipped with a section threaded rod, the threaded rod is connected with swivel nut threaded connection, swivel nut rotates to be connected in the mounting, and swivel nut's lower extreme passes through slash and turning handle fixed connection, the lower extreme fixedly connected with protruding ball of threaded rod.
Preferably, the air nozzle is provided with three air blowing ports which are respectively positioned at the top end and two sides of the top of the air nozzle.
The connecting rod is fixedly connected with a stop block, and the stop block is positioned above the sliding block.
The invention has the advantages that:
1. the air-blast arc extinguishing and the metal grid arc extinguishing are combined, so that the arc extinguishing effect is improved, and the arc extinguishing time is shortened.
2. The top metal grid sheet can be close to the cable connector when the circuit is disconnected, and a better arc extinguishing effect is achieved. And is far away from the cable joint after being switched on and switched off, thereby preventing electric leakage.
3. Be equipped with three gas blow mouth on the jet-propelled head, play and synthesize the effect of indulging the arc extinguishing and violently blowing the arc extinguishing, the jet-propelled inside cavity that is full of the circuit breaker shell of jet-propelled head simultaneously prevents the circuit breaker misconnection again after the disconnection.
4. After the circuit breaker is connected, the cable switches on, leads to the coil circular telegram, resets through taking magnetism metal disc drive piston, takes away the gas in the inside cavity of circuit breaker shell, makes cable joint and connecting piece connect tighter, prevents the mistake disconnection to can take away gaseous reuse next time, save arc extinguishing gas loss.
5. When the cable joint and the connecting piece are disconnected, the coil is powered off, the piston is released, accurate air injection is ensured, and the sensitive and stable response is ensured through mechanical action.
Drawings
Fig. 1 is a schematic structural view of the inside of a case of a circuit breaker in the case of circuit connection according to the present invention;
FIG. 2 is a schematic view showing the inner structure of the cylinder of the present invention;
fig. 3 is a schematic diagram of the internal structure of the breaker case at the moment of circuit breaking according to the present invention;
fig. 4 is a schematic view of the internal structure of the circuit breaker housing after the circuit is broken in the present invention;
FIG. 5 is another schematic view of the interior of the cartridge of the present invention;
FIG. 6 is a schematic view of the push-pull handle of the device of the present invention;
FIG. 7 is a schematic view of another embodiment of the bottom of the operating rod of the apparatus of the present invention;
FIG. 8 is a schematic view of the structure of a showerhead in the apparatus of the present invention;
the circuit breaker comprises a circuit breaker shell, a spring, a circuit breaker shell, a circuit breaker.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 8, a circuit breaking and arc extinguishing structure comprises a circuit breaker housing 1 and an air cylinder 17, wherein a cable connector 3, a connecting piece 4, a sliding rod 13, a top metal grid 15 and side metal grids 16 are arranged in a cavity inside the circuit breaker housing 1, the top metal grid 15 is positioned at the top of the cable connector 3 and fixedly connected to the lower side of the sliding rod 13, two groups of the side metal grids 16 are arranged and respectively positioned at two sides below the cable connector 3, and the top metal grid 15 and the side metal grids 16 are both grounded;
the cable joint 3 is fixedly connected on the shell 1 of the circuit breaker and connected with the external cable 2, the connecting piece 4 is provided with a joint inserting piece 5, an operating rod 6 and a gas nozzle 7, the connector insert 5 is fixedly connected with the upper end of the connecting piece 4 and can be matched with the cable connector 3 for opening and closing, the operating rod 6 is fixedly connected with the lower end of the connecting piece 4, the lower end of the operating rod 6 penetrates out of the breaker shell 1 and is connected with the breaker shell in a sliding way, two sides of the connecting piece 4 are provided with sliding blocks 8, the sliding blocks 8 are connected in the inner wall of the breaker shell 1 in a sliding way, and the inner wall of the shell 1 of the circuit breaker is also connected with a connecting rod 9 in a sliding way, the connecting rod 9 is connected with a sliding block 8 in a sliding way, the upper end and the lower end of the connecting rod 9 are respectively fixedly connected with a bottom plate 11 and a connecting plate 14, the base plate 11 and the connecting plate 14 are both slidably connected in the inner wall of the circuit breaker housing 1, and the two connecting plates 14 are also fixedly connected at both sides of the sliding rod 13.
The air nozzle 7 is communicated with the inflator 17 through a vent pipe 25, the inflator 17 is internally divided into an arc extinguishing gas cavity 18 and an electromagnetic driving cavity 19 from left to right, a piston 21 is slidably connected in the arc extinguishing gas cavity 18, an electromagnetic driving cavity 19 is fixedly connected with a coil 22, the coil 22 is connected with the cable 2, and a driving rod 23 is slidably connected in the coil 22, the left end of the driving rod 23 is fixedly connected with the piston 21, the right end of the driving rod is fixedly connected with a magnetic metal disc 24, and the magnetic metal disc 24 is slidably connected with the electromagnetic driving cavity 19.
The right end of the electromagnetic driving cavity 19 is also communicated with a compressed gas cavity 20, and the compressed gas cavity 20 is filled with compressed gas.
The right side plate of the electromagnetic driving cavity 19 is also connected with a compression spring 26, and the other end of the compression spring 26 is connected with a magnetic metal disc 24.
The arc quenching gas cavity 18 is filled with quenching gas, which includes but is not limited to sulfur hexafluoride.
The lower end of the operating rod 6 is connected with a push-pull handle 27.
The lower end of the operating rod 6 is provided with a section of threaded rod, the threaded rod is in threaded connection with a rotating nut 29, the rotating nut 29 is rotatably connected in a fixing part 28, the lower end of the rotating nut 29 is fixedly connected with a rotating handle 31 through a slash 30, and the lower end of the threaded rod is fixedly connected with a protruding ball 32.
And three air blowing ports are arranged on the air nozzle 7 and are respectively positioned at the top end and two sides of the top of the air nozzle 7.
The specific implementation mode and principle are as follows:
after the circuit breaker is connected, connect inserted sheet 5 and cable joint 3 to be connected, circuit path promptly, lead to coil 22 circular telegram, reset through taking magnetism metal disc 24 drive piston 21, piston 21 resets and makes the interior gas pressure of arc extinguishing gas chamber 18 space diminish to take away the arc extinguishing gas in the inside cavity of circuit breaker housing 1, it is tighter to make cable joint 3 and connecting piece 4 connect, prevents the mistake disconnection, and can take away gaseous reuse next time, saves the arc extinguishing gas loss. And the slide block 8 is pressed against the stop block 12, so that the connecting rod 9 slides upwards to the topmost end against the slide rod 13, and the top metal grid 15 is far away from the cable connector 3, thereby preventing electric leakage.
When the circuit breaker is disconnected, in the process of pulling the connecting piece 4 through the operating rod 6, the sliding block 8 downwards slides to press the spring 10, and then the connecting rod 9 is driven to slide downwards through the bottom plate 11, so that the sliding rod 13 slides downwards, the purpose that the top metal grid piece 15 is close to the cable connector 3 is achieved, and a better arc extinguishing effect is achieved.
After the circuit breaker disconnection, connect inserted sheet 5 promptly and leave cable joint 3, the circuit disconnection this moment, lead to coil 22 end electricity, under compression spring 26's effect (or under the compressed gas atmospheric pressure effect in the compressed gas chamber 20), take magnetic metal disc 24 to advance, drive piston 21 advances, piston 21 advances and makes the interior pressure of arc extinguishing gas chamber 18 space beat, thereby exhaust gas is to the inside cavity of 1 inside of circuit breaker housing, and spout through jet-propelled head 7, be equipped with three gas blow-off on the jet-propelled head 7, play the comprehensive effect of blowing arc extinguishing and cross-blow arc extinguishing, jet-propelled circuit breaker housing inside cavity that is full of jet-propelled simultaneously, extrusion connecting piece gliding to the lower extreme, prevent the misconnection again after the circuit breaker disconnection.
Meanwhile, arc extinguishing gas is filled in the cavity inside the shell of the circuit breaker, the extrusion sliding rod 13 slides upwards to the topmost end, so that the top metal grid piece 15 is far away from the cable connector 3, and electric leakage is prevented.
Based on the above, the arc extinguishing device is simple in structure and flexible to use, combines air-blast arc extinguishing with metal grid arc extinguishing, improves the arc extinguishing effect and reduces the arc extinguishing time; the top metal grid sheet can be close to the cable connector when the circuit is disconnected, and a better arc extinguishing effect is achieved. And is far away from the cable joint after being switched on and switched off, thereby preventing electric leakage; the three air blowing ports are arranged on the air nozzle, so that the comprehensive longitudinal-blowing arc extinguishing and transverse-blowing arc extinguishing effects are achieved, and meanwhile, air sprayed by the air nozzle is filled in the cavity inside the shell of the circuit breaker, so that the circuit breaker is prevented from being connected by mistake after being disconnected; after the circuit breaker is connected, the cable is conducted to enable the coil to be electrified, the piston is driven to reset through the magnetic metal disc, and gas in the cavity inside the shell of the circuit breaker is pumped away, so that the cable connector and the connecting piece are connected more tightly, the mistaken disconnection is prevented, the gas can be pumped away for the next use, and the arc extinguishing gas loss is saved; when the cable joint and the connecting piece are disconnected, the coil is powered off, the piston is released, accurate air injection is ensured, and the sensitive and stable response is ensured through mechanical action.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (9)
1. The circuit breaking arc extinguishing structure is characterized by comprising a circuit breaker shell (1) and an air cylinder (17), wherein a cable connector (3), a connecting piece (4), a sliding rod (13), a top metal grid sheet (15) and side metal grid sheets (16) are arranged in a cavity in the circuit breaker shell (1), the top metal grid sheets (15) are positioned at the top of the cable connector (3) and fixedly connected to the lower side of the sliding rod (13), two groups of side metal grid sheets (16) are arranged and are respectively positioned at two sides below the cable connector (3), and the top metal grid sheets (15) and the side metal grid sheets (16) are both grounded;
the cable joint (3) is fixedly connected to the breaker shell (1) and connected with an external cable (2), a joint inserting piece (5), an operating rod (6) and a jet head (7) are arranged on the connecting piece (4), the joint inserting piece (5) is fixedly connected to the upper end of the connecting piece (4) and can be matched and separated with the cable joint (3), the operating rod (6) is fixedly connected to the lower end of the connecting piece (4), the lower end of the operating rod (6) penetrates out of the breaker shell (1) and is in sliding connection with the breaker shell, sliding blocks (8) are arranged on two sides of the connecting piece (4), the sliding blocks (8) are in sliding connection with the inner wall of the breaker shell (1), a connecting rod (9) is further in sliding connection with the inner wall of the breaker shell (1), the connecting rod (9) is in sliding connection with the sliding blocks (8) and the upper end and the lower end of the connecting rod are respectively and fixedly connected with a bottom plate (11) and a connecting plate (14), the bottom plate (11) and the connecting plates (14) are connected in the inner wall of the breaker shell (1) in a sliding mode, and the two connecting plates (14) are further fixedly connected to the two sides of the sliding rod (13).
2. The circuit breaking and arc extinguishing structure according to claim 1, wherein: air injector (7) are through breather pipe (25) and inflator (17) intercommunication, inflator (17) are inside to be divided into arc extinguishing gas chamber (18) and electromagnetic drive chamber (19) about, sliding connection has piston (21) in arc extinguishing gas chamber (18), electromagnetic drive chamber (19) fixedly connected with coil (22), coil (22) are connected with cable (2), and sliding connection has actuating lever (23) in it, the left end and piston (21) fixed connection of actuating lever (23), on its right-hand member fixedly connected with area magnetism metal disc (24), take magnetism metal disc (24) and electromagnetic drive chamber (19) sliding connection.
3. The circuit breaking and arc extinguishing structure according to claim 2, wherein: the right end of the electromagnetic driving cavity (19) is also communicated with a compressed gas cavity (20), and the compressed gas cavity (20) is filled with compressed gas.
4. The circuit breaking and arc extinguishing structure according to claim 2, wherein: and the right side plate of the electromagnetic driving cavity (19) is also connected with a compression spring (26), and the other end of the compression spring (26) is connected with a magnetic metal disc (24).
5. The circuit breaking and arc extinguishing structure according to claim 2, wherein: the arc extinguishing gas cavity (18) is filled with arc extinguishing gas, and the arc extinguishing gas comprises but not limited to sulfur hexafluoride.
6. The circuit breaking and arc extinguishing structure according to claim 1, wherein: the lower end of the operating rod (6) is connected with a push-pull handle (27).
7. The circuit breaking and arc extinguishing structure according to claim 1, wherein: the lower extreme of action bars (6) is equipped with one section threaded rod, threaded rod and swivel nut (29) threaded connection, swivel nut (29) rotate to be connected in mounting (28), and the lower extreme of swivel nut (29) passes through down tube (30) and twist grip (31) fixed connection, the lower extreme fixedly connected with protruding ball (32) of threaded rod.
8. The circuit breaking and arc extinguishing structure according to claim 1, wherein: and three air blowing ports are arranged on the air nozzle (7) and are respectively positioned at the top end and two sides of the top of the air nozzle (7).
9. The circuit breaking and arc extinguishing structure according to claim 1, wherein: the connecting rod (9) is fixedly connected with a stop block (12), and the stop block (12) is positioned above the sliding block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110884419.8A CN113593995B (en) | 2021-08-03 | 2021-08-03 | Circuit breaking arc extinguishing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110884419.8A CN113593995B (en) | 2021-08-03 | 2021-08-03 | Circuit breaking arc extinguishing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113593995A true CN113593995A (en) | 2021-11-02 |
| CN113593995B CN113593995B (en) | 2024-10-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110884419.8A Active CN113593995B (en) | 2021-08-03 | 2021-08-03 | Circuit breaking arc extinguishing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113593995B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593998A (en) * | 2021-08-03 | 2021-11-02 | 安徽信息工程学院 | Quick reconnection mechanism for cable |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1438590A (en) * | 1972-12-08 | 1976-06-09 | Fuji Electric Co Ltd | Electrical circuit breaker |
| US4038626A (en) * | 1975-06-11 | 1977-07-26 | I-T-E Imperial Corporation | High voltage contactor |
| CN104124086A (en) * | 2014-08-18 | 2014-10-29 | 上海耐吉输配电设备有限公司 | Electrical arc extinguishing device |
-
2021
- 2021-08-03 CN CN202110884419.8A patent/CN113593995B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1438590A (en) * | 1972-12-08 | 1976-06-09 | Fuji Electric Co Ltd | Electrical circuit breaker |
| US4038626A (en) * | 1975-06-11 | 1977-07-26 | I-T-E Imperial Corporation | High voltage contactor |
| CN104124086A (en) * | 2014-08-18 | 2014-10-29 | 上海耐吉输配电设备有限公司 | Electrical arc extinguishing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593998A (en) * | 2021-08-03 | 2021-11-02 | 安徽信息工程学院 | Quick reconnection mechanism for cable |
| CN113593998B (en) * | 2021-08-03 | 2024-06-11 | 安徽信息工程学院 | Quick reconnection mechanism for cables |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113593995B (en) | 2024-10-18 |
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