CN108346533A - D-c circuit breaker - Google Patents
D-c circuit breaker Download PDFInfo
- Publication number
- CN108346533A CN108346533A CN201710639829.XA CN201710639829A CN108346533A CN 108346533 A CN108346533 A CN 108346533A CN 201710639829 A CN201710639829 A CN 201710639829A CN 108346533 A CN108346533 A CN 108346533A
- Authority
- CN
- China
- Prior art keywords
- terminal
- circuit breaker
- radiating fin
- fixed contact
- short bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
- H01H33/596—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle for interrupting dc
-
- 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
- H01H71/082—Connections between juxtaposed circuit breakers
-
- 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
- H01H71/1045—Multiple circuits-breaker, e.g. for the purpose of dividing current or potential drop
-
- 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
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
- H01H2009/526—Cooling of switch parts of the high voltage switches
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
Obtain a kind of d-c circuit breaker that current limiting performance will not be caused to reduce being attached to the portion of terminal of 2 different poles using the short bar as copper coin.Have：Pedestal；At least two fixed contact therefor, they are set on the pedestal, have fixed contact；Movable contact has the moving contact for being contacted and being detached with fixed contact；Arc-extinction device is made of multiple muffler plates to two contacts and fixed contact therefor encirclement；Power supply side terminal is connect with fixed contact therefor；Interpolar wall will be separated between power supply side terminal；Short bar is attached 2 adjacent terminals among power supply side terminal；Radiating fin is set to short bar, with base portion and the fin part being made of multiple fins；Terminal cover portion covers power supply side terminal, short bar and radiating fin；And electric arc wall, it is set to terminal cover portion, will be separated between power supply side terminal and fin.
Description
Technical field
The present invention relates to a kind of in applying the circuit of DC voltage of high voltage as solar power system
The d-c circuit breaker used.
Background technology
In solar power system, many generating elements are connected in series with and constitute solar panel, therefore to inciting somebody to action
The d-c circuit breaker application hundreds of being arranged at the position that the equipment such as solar panel and inverter are attached~be more than
The DC high voltage of 1000V.In order to which the electric current to the DC high voltage is cut off, profit runs wires to the different of breaker
Multiple contact series are connected (for example, referring to patent document 1) by 2 poles.
Additionally, it is known that in order to save the space being attached using 2 different poles of wire pair, copper is utilized to replace electric wire
The short bars such as plate are attached portion of terminal, if but be usually attached using copper coin etc., surface area is reduced, heat dissipation capacity drop
It is low, therefore compared with the case where electric wire connects, the temperature rise of portion of terminal, it is possible to be unsatisfactory for the tripping of d-c circuit breaker
Characteristic.In this regard, known make surface area increase by radiating fin is arranged in the copper coin, prevent the reduction of heat dissipation capacity (for example, ginseng
According to patent document 2).
Patent document 1：Japanese Unexamined Patent Publication 2015-8110 bulletins
Patent document 2：EP2645486A1
In existing d-c circuit breaker, in the case where carrying out wiring using copper coin, with utilization wire pair terminal
Between carry out wiring and become larger compared to sectional area, become smaller to resistance, cut-out electric current when short-circuit becomes larger, therefore exists and be difficult to be cut
Disconnected problem.
Invention content
The present invention is exactly to propose in order to solve the above problems, even if obtaining one kind utilizing the short bar as copper coin
The d-c circuit breaker that current limiting performance will not be caused to reduce is attached to the portion of terminal of 2 different poles.
D-c circuit breaker of the present invention has：Pedestal；At least two fixed contact therefor, they are set to the base
On seat, there is fixed contact；Movable contact has the moving contact for being contacted and being detached with the fixed contact；Disappear
Arc device is correspondingly configured with two contacts, is made of the muffler plate being arranged in the front end side of movable contact；Screen
Barrier, is set between arc-extinction device and terminal, has the exhaust for the cut-out gas generated in cut-out to be exhausted
Hole；Barrier curtain is set to the terminals side of the barrier, blocks gas vent when normal, and gas vent is not blocked in cut-out；Short circuit
Stick is attached 2 adjacent terminals among terminal；Radiating fin is set to the short bar, have base portion with
And the fin part being made of multiple fins；Terminal cover portion covers terminal, short bar and radiating fin；And electricity
Arc wall is set to the terminal cover portion, will be separated between terminal and radiating fin.
The effect of invention
Inturruptor for sub-line according to the present invention, what is covered to power supply side terminal, short bar and radiating fin
Terminal cover portion is provided with the electric arc wall that will be separated between power supply side terminal and radiating fin, even if therefore can obtain a kind of profit
The DC circuit open circuit that current limiting performance will not be caused to reduce is attached to the power supply side terminal of 2 different poles with short bar
Device.
Description of the drawings
Fig. 1 is the front view for indicating the d-c circuit breaker in embodiments of the present invention 1.
Fig. 2 is indicated the front view of the state after terminal cover portion removal in d-c circuit breaker shown in Fig. 1.
Fig. 3 is the sectional view of the X-X lines in Fig. 1.
Fig. 4 is the mian part main view for the connection conductor element for indicating the d-c circuit breaker in embodiments of the present invention 1
Figure.
Fig. 5 is by the amplified mian part enlarged front views of mian part A shown in Fig. 4.
Fig. 6 is to show schematically mian part to illustrate state when cut-out for d-c circuit breaker shown in Fig. 3
Section definition graph.
Fig. 7 is to show schematically the state for being transversely mounted the d-c circuit breaker in embodiments of the present invention 2
Front view.
Fig. 8 is to show schematically the state for being transversely mounted the d-c circuit breaker in embodiments of the present invention 2
Vertical view.
Fig. 9 is the front view of the short bar for the d-c circuit breaker for indicating Fig. 7.
Figure 10 is the sectional view of the Y-Y lines in Fig. 9.
Figure 11 is the front view for the radiating fin for indicating the d-c circuit breaker in embodiments of the present invention 2.
Figure 12 is the upward view of radiating fin shown in Figure 11.
Figure 13 is said for the installation of the terminal cover portion to the d-c circuit breaker in embodiments of the present invention 2
Bright definition graph.
Figure 14 is the definition graph illustrated for the installation midway to radiating fin shown in Figure 13.
Figure 15 is the definition graph for being illustrated to the fixation of radiating fin shown in Figure 13.
Figure 16 is for in the case where the d-c circuit breaker in embodiments of the present invention 2 to be transversely mounted
The definition graph that the direction of radiating fin illustrates.
Figure 17 is for in the case that the d-c circuit breaker in embodiments of the present invention 2 is longitudinally mounted
The definition graph that the direction of radiating fin illustrates.
The explanation of label
10 frameworks, 11 pedestals, 12 cover portions, 12a handle fenestras,
20 circuitry cuts units, 21 fixed contacts, 22 moving contacts,
23 movable contacts, 24 power supply side terminals, 25 load side terminals,
26 movable contact brackets, 27 fixed contact therefors,
30 open-close mechanism sections, 31 operation handles, 32 cross bars, 33 release levers,
40 tripgears, 50 arc-extinction devices, 51 muffler plates,
60 barriers, 60a gas vents, 61 barrier curtains,
62 cushion spaces, the 1st spaces 62a, the 2nd spaces 62b,
70 connection conductor elements, 71 short bars,
72 radiating fins, 72a fin parts, 72b base portions,
73 terminal cover portions, 73a electric arc walls,
The 1st ventilation holes of 73b, the 2nd ventilation holes of 73c, the 3rd ventilation holes of 73d,
The top surfaces 73e, 74 mounting screws,
101 d-c circuit breakers.
Specific implementation mode
Embodiment 1.
Fig. 1 is the front view for indicating the d-c circuit breaker in embodiments of the present invention 1, and Fig. 2 is indicated terminal
The front view of the d-c circuit breaker of state after cover portion removal, Fig. 3 are the sectional views of the X-X lines in Fig. 1, and Fig. 4 is table
Show the mian part front view of the connection conductor element of the d-c circuit breaker in embodiments of the present invention 1, Fig. 5 is by Fig. 4 institutes
The amplified enlarged views of mian part A shown, Fig. 6 are for the d-c circuit breaker in embodiments of the present invention 1
The schematic diagram illustrated when cut-out.
As shown in Figure 1 to Figure 3, d-c circuit breaker 101 using be formed by insulating materials, by pedestal 11 and cover portion 12
The framework 10 of composition and constitute.On pedestal 11, the circuit breaker unit 20 of number of poles corresponding amount is separated from each other interval and is arranged
Row configure the open-close mechanism section 30 with well known elbow-bar mechanism on the top of circuit breaker unit 20.Cover portion 12 is to pedestal 11
On each pole circuit breaker unit 20 and open-close mechanism section 30 covered, the operation handle 31 of open-close mechanism section 30 is from cover
The handle in portion 12 fenestra 12a protrudes.
The circuit breaker unit 20 of each pole is identical structure each other, and cross bar 32 is altogether at the circuit breaker unit 20 of each pole
Logical, it is configured in a manner of orthogonal with the circuit breaker unit 20 of each pole on pedestal 11.The cross bar 32 passes through switching mechanism
Portion 30 and rotated centered on the axle center of cross bar 32, be separately installed at the circuit breaker unit 20 of each pole each movably connects
Contact element 23.When being rotated centered on cross bar 32 is by its axle center, each movable contact 23 of the circuit breaker unit 20 of each pole
It is carried out at the same time rotation, by the rotation of these movable contacts 23, moving contact 22 is contacted and detached with fixed contact 21.
Open-close mechanism section 30 is made of well known elbow-bar mechanism, has the well known release lever 33 driven by tripgear 40.
The circuit breaker unit 20 of each pole has：Power supply side terminal 24 is set to pedestal 11；Fixed contact therefor 27,
It is stretched out from the power supply side terminal 24, there is fixed contact 21；Moving contact 22 is contacted and is detached with fixed contact 21；
Movable contact 23, one end are arranged the moving contact 22, are rotatably kept by cross bar 32；Tripgear 40, warp
It is connect with the movable contact 23 by movable contact bracket 26；Load side terminal 25 is stretched out from tripgear 40；And
Arc-extinction device 50 is set to the front end side of movable contact 23, using the muffler plate 51 for surrounding two contacts 21,22 to
The electric arc generated when cut-out carries out extinguishing arc.In addition, it is provided with components described below between arc-extinction device 50 and power supply side terminal 24,
I.e.：Barrier 60 has the gas vent 60a (illustrating in figure 6) that the cut-out gas generated in cut-out is exhausted；And
Barrier curtain 61 blocks gas vent 60a when normal, and gas is cut off in cut-out and blows down and becomes not by gas vent 60a
The state of closure.
The opening and closing contact that circuit is opened and closed is constituted by fixed contact 21 and moving contact 22.If moving contact 22 with
Fixed contact 21 contacts, then the circuit between two terminals 24,25, which becomes, connects, in addition, if moving contact 22 is touched from fixed
21 separation of point, then the circuit between two terminals 24,25, which becomes, disconnects.At this point, between moving contact 22 and fixed contact 21
The electric arc of generation carries out extinguishing arc by arc-extinction device 50.
About the cut-out gas of generation when carrying out extinguishing arc to the electric arc that is generated between moving contact 22 and fixed contact 21,
Due to the air pressure, 24 side of separate power supply side terminal in barrier curtain 61 is opened, and cut-out gas is discharged from gas vent 60a to direct current
Except circuit breaker 101.
In the following, being illustrated to connection conductor element 70.Connection conductor element 70 is made of components described below, i.e.,：Short bar
71, the 2 different poles of d-c circuit breaker 101 are electrically connected；Metal radiating fin 72 has by multiple
Fin constitute fin part 72a and to the base portion 72b that fin part 72a is kept, be fixed on short bar 71；Resin
The terminal cover portion 73 of system covers power supply side terminal 24, short bar 71 and radiating fin 72；And mounting screw
74, short bar 71 and radiating fin 72 are fixed.
Terminal cover portion 73 has：Electric arc wall 73a will be separated between power supply side terminal 24 and radiating fin 72；1st
Ventilation hole 73b is used to radiate and open to mains side；2nd ventilation hole 73c, be equally used for heat dissipation and to terminal cover portion 73
The top surface sides 73e open；And the 3rd ventilation hole 73d, it is opened to side.In addition, electric arc wall 73a extends from base portion 72b
It is arranged to 71 side of short bar.
As shown in Figure 4, Figure 5, terminal cover portion 73 is being provided with the 1st between the fin of radiating fin 72 at corresponding position
Ventilation hole 73b.Thereby, it is possible to keep from short bar 71 and radiating fin 72 between the face in the outside of terminal cover portion 73
So that short bar 71 and radiating fin 72 is become larger in the state of space length, the heat dissipation capacity in limited space can be increased.
In the following, being illustrated to the cutoff action of d-c circuit breaker 101.If it is greater than or equal to specified value electric current
Circuit breaker unit 20 is flowed through, then tripgear 40 is rotated and pressed release lever 33, thus open-close mechanism section 30
It is driven and movable contact 23 is made to be rotated.By the rotation of movable contact 23, moving contact 22 is from fixed contact 21
Separation.The electric arc generated when moving contact 22 detaches can attempt to be maintained most short between fixed contact 21 and moving contact 22
Distance.What generated electric arc was configured arc-extinction device 50 is cut to short electricity by multiple muffler plates 51 that magnetic steel plate forms
Arc generates voltage drop, and the arc voltage for pilot arc rises.Also, if the arc voltage becomes higher than supply voltage
Voltage, then electric arc be destroyed.
In the following, to by being extended electric arc wall 73a to short bar 71 from base portion 72b by the top of terminal cover portion 73
Face, electric arc wall 73a, the spaced walls in power supply side terminal portion and power supply side terminal 24 surround the cushion space 62 formed (in figure 6
Diagram) effect illustrate.
In existing d-c circuit breaker, if the short circuit for using resistance ratio electric wire low in order not to make temperature rise
Stick, then cut-out electric current when short-circuit also become larger.As a result, the heat of vaporization of electric arc when by cutting off go out include metallicity steam
The cut-out gas of electric conductivity inside also increases, therefore the electric arc generated in cut-out carries out in the cut-out gas of the electric conductivity
It transmits, is extended from moving contact 22, reach the radiating fin of short bar.
In the present embodiment, as shown in fig. 6, due to being provided with cushion space 62, the electric arc that generates in cut-out
And the cut-out gas of electric conductivity pushes barrier curtain 61 open, is discharged from gas vent 60a to cushion space 62.At this point, due to barrier curtain
61 open from the top surface sides 73e, therefore electric arc and the cut-out gas of electric conductivity are being discharged to by barrier curtain 61 and top surface 73e packets
After 1st space 62a of folder, travel line is blocked by electric arc wall 73a, across electric arc wall 73a and barrier curtain 61, is arrived at extremely
2nd space 62b of 24 side of power supply side terminal in cushion space 62.
In this way, electric arc and the cut-out gas of electric conductivity pass through after gas vent 60a discharges by terminal cover portion 73 and electricity
When the 1st space 62a that the resin component of the spaced walls of source portion of terminal etc surrounds, certainly from these resins generation cooling gas
Body is cooled, and is risen by the cooling gas, arc constriction, therefore arc voltage, and cut-out electric current is by current limliting.Therefore, exist
To when reaching power supply side terminal 24, cut-out is completed for electric arc and the cut-out gas of electric conductivity, and electric arc is not to reaching mains side end
Son 24.
In addition, though be provided with the 2nd ventilation hole 73c in the top surface 73e of terminal cover portion 73, but the 2nd ventilation hole 73c have with
Gas vent 60a compared to fully small aperture, therefore electric arc and the cut-out gas of electric conductivity generated from terminal cover portion 73 it is cold
But gas is stopped, and cooling gas blocks the 2nd ventilation hole 73c, therefore electric arc and the cut-out gas of electric conductivity will not
Across the 2nd ventilation hole 73c.
According to the present embodiment, the terminal cover portion 73 of resin have by between power supply side terminal 24 and radiating fin 72 into
The electric arc wall 73a that row separates, therefore the cut-out gas for the electric arc and electric conductivity being discharged from gas vent 60a in cut-out is guided
To the tree of the wall of cover portion 12 surrounded by the top surface 73e of terminal cover portion 73, electric arc wall 73a and to power supply side terminal etc
1st space 62a of the surrounded formation of fat component is carried out cold by the cooling gas generated from the resin for forming the 1st space 62a
But, therefore current limiting performance will not reduce.
In addition, since terminal cover portion 73 has the electric arc wall that will be separated between power supply side terminal 24 and radiating fin 72
73a, therefore can prevent the cut-out gas of the electric conductivity generated in failure of current from touching radiating fin 72.
In addition, by being extended electric arc wall 73a to short bar 71 from base portion 72b, cut-out can be reliably blocked
Gas, and using in order not to make temperature rise and the low short bar of resistance ratio electric wire, the electric conductivity gas increased when by short circuit
Body (current limiting performance reduction) is cooled down in the cushion space, can prevent the ground short circuit to ceiling.
In addition, since the mains side and top surface side in terminal cover portion 73 are provided with the 1st ventilation hole 73b and the 2nd ventilation hole
73c, therefore the delay of heat can not occur in terminal cover portion 73 and radiate.
Embodiment 2.
Fig. 7 is the front view for showing schematically the state for being transversely mounted the d-c circuit breaker in embodiment 2, figure
8 be the vertical view for showing schematically d-c circuit breaker shown in Fig. 7, Fig. 9 be indicate Fig. 7 d-c circuit breaker it is short
The front view of road stick, Figure 10 are the sectional views of the Y-Y lines in Fig. 9, and Figure 11 is the DC circuit open circuit indicated in embodiment 2
The front view of the radiating fin of device, Figure 12 are the upward views of radiating fin shown in Figure 11, and Figure 13 is for terminal cover portion
The definition graph illustrated is installed, Figure 14 is the definition graph illustrated for the installation midway to terminal cover portion, and Figure 15 is to use
In the definition graph illustrated to the fixation of radiating fin shown in Figure 13, Figure 16 is for d-c circuit breaker is horizontal
The definition graph illustrated to the direction of the radiating fin in the case of installation, Figure 17 are for by d-c circuit breaker
The definition graph that the direction of radiating fin in the case of longitudinally mounted illustrates.
Axle portion, energy is arranged in base portion 82b in the connection conductor element 80 of d-c circuit breaker 102 in present embodiment
It is enough to be rotated by 90 ° fin part 82a, so that can not also cause heat when laterally being installed d-c circuit breaker 102
The delay of amount and radiate.
As shown in Figure 7, Figure 8, d-c circuit breaker 102 is to become water with the direction of power supply side terminal-load side terminal
Flat mode and install.Relatively with the state shown in Fig. 2 of embodiment 1, radiating fin 82 can rotate to be rotation 90
State after degree.In addition, as shown in figure 8, the 3rd ventilation hole 83d opened to side be set to it is corresponding between fin part 82a
Position.
In the following, being illustrated to the spinning solution of radiating fin 82 using Fig. 9~Figure 12.
Connection conductor element 80 has：Short bar 81, with circular axial trough 81a；And radiating fin 82, have
The recess portion 82c of the square and insertion rib 82d being inserted into axial trough 81a.
In addition, as shown in figure 13, terminal cover portion 83 has fixation rib 83e, fixing spring 84 and has and recess portion
82c carries out the fixation block 85 of chimeric shape.Other structures are identical as embodiment 1, and and the description is omitted.
As shown in figure 13, in d-c circuit breaker 102, first, the insertion rib 82d of radiating fin 82 is inserted into circle
The axial trough 81a of shape carries out the positioning of short bar 81 and radiating fin 82.It can be in circular axial trough 81a at this point, being inserted into rib 82d
It inside moves freely, therefore radiating fin 82 can be rotated relative to short bar 81.Then, as shown in figure 14, such as
Fruit is mounted with terminal cover portion 83, then fixed chimeric with recess portion 82c with block 85, therefore limits radiating fin 82 by terminal cover portion 83
Rotation, radiating fin 82 is pressed against short bar 81.By further pressing terminal cover portion 83 from the state, such as Figure 15
Shown, terminal cover portion 83 is fixed on cover portion 12, presses on radiating fin 82 by fixing spring 84, radiating fin 82 is consolidated
It is fixed.
In this way, since radiating fin 82 can be rotated by 90 °, no matter d-c circuit breaker 102 shown in Figure 16
Power supply side terminal-load side terminal direction be horizontal direction installation when, or shown in Figure 17 DC circuit open circuit
When the direction of power supply side terminal-load side terminal of device 102 is the installation of vertical direction, the fin of radiating fin 82 can be made
The long side direction of portion 82a becomes vertical direction, the delay of heat can not occur in terminal cover portion 83 and radiate.
In addition, in the present embodiment, recess portion 82c and fixation block 85 are set as square, therefore 82 energy of radiating fin
It is enough to be fixed as unit of 90 degree.Even if in addition, the shape of recess portion 82c and fixation block 85 be not square, but as long as
It is the shape also identical shape after being rotated by 90 ° such as 8 side shapes.
According to the present embodiment, by the way that axial trough 81a is set as round, radiating fin 82 can be made to be rotated, can be incited somebody to action
The direction of fin is easily matchingly changed with the installation direction of d-c circuit breaker 102.
In addition, by axial trough 81a and rib 82d is inserted into, even if such as being impacted from outside in d-c circuit breaker 102
And in the state that the power of fixing spring 84 temporarily dies down in this way, it can also prevent the falling off of radiating fin, position offset.
In addition, it is set as square with the shape of block 85, recess portion 82c by will fix, it can be by radiating fin with 90 degree
It is installed for unit rotation.
In addition, terminal cover portion 83 is being provided with the 3rd ventilation hole 83d between the fin of fin part 82a at corresponding position,
Therefore the delay of heat can not occur in terminal cover portion 83 and radiates.
It is affixed by carrying out terminal cover portion to cover portion 12, so as to the installation direction with d-c circuit breaker 102
Correspondingly radiating fin 82 is rotated and is fixed, therefore can be realized independent of direct current by 1 radiating fin
The heat dissipation of the installation direction of circuit breaker 102.
Claims (4)
1. a kind of d-c circuit breaker, has：
Pedestal；At least two fixed contact therefor, they are set on the pedestal, have fixed contact；Movable contact, with
The fixed contact therefor is correspondingly arranged, and has the moving contact for being contacted and being detached with the fixed contact；Arc-extinction device,
It is correspondingly arranged with described two contacts, is made of the muffler plate being arranged in the front end side of the movable contact；Terminal,
It connect with the fixed contact therefor；Barrier is set between the arc-extinction device and the terminal, is had for cutting
The gas vent that the cut-out gas generated when disconnected is exhausted；Barrier curtain is set to the terminals side of the barrier, will when normal
The gas vent blocks, and the gas vent is not blocked in cut-out；Short bar, to 2 adjacent ends among the terminal
Son is attached；Radiating fin is set to the short bar, with base portion and the fin part being made of multiple fins；End
Sub- cover portion covers the terminal, the short bar and the radiating fin；And electric arc wall, it is set to this
Terminal cover portion will be separated between the terminal and the radiating fin.
2. d-c circuit breaker according to claim 1, which is characterized in that
The electric arc wall is extended from the base portion to the short bar side.
3. d-c circuit breaker according to claim 1 or 2, which is characterized in that
The radiating fin centered on axis being arranged in the short bar to be rotated by 90 °.
4. d-c circuit breaker according to any one of claim 1 to 3, which is characterized in that
The terminal cover portion is being provided with ventilation hole between the fin of the radiating fin at corresponding position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-009350 | 2017-01-23 | ||
| JP2017009350A JP6680228B2 (en) | 2017-01-23 | 2017-01-23 | DC circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108346533A true CN108346533A (en) | 2018-07-31 |
Family
ID=62962186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710639829.XA Pending CN108346533A (en) | 2017-01-23 | 2017-07-31 | D-c circuit breaker |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6680228B2 (en) |
| KR (1) | KR102005625B1 (en) |
| CN (1) | CN108346533A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110310850A (en) * | 2019-06-13 | 2019-10-08 | 广东电网有限责任公司 | A kind of finned air switch busbar radiator |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115631979B (en) * | 2022-11-02 | 2023-05-26 | 国网湖北省电力有限公司直流公司 | Bidirectional current hybrid direct current breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3165442B2 (en) * | 1991-07-18 | 2001-05-14 | スクウエアー ディー カンパニー | Circuit breaker |
| CN201435322Y (en) * | 2009-06-03 | 2010-03-31 | 福建省三星机电设备有限公司 | radiator |
| JP2016006721A (en) * | 2014-06-20 | 2016-01-14 | 三菱電機株式会社 | Circuit breaker |
| CN105321750A (en) * | 2015-11-12 | 2016-02-10 | 浙江欧亿科技有限公司 | Arc extinguishing system for switch control and protection |
| KR20160080635A (en) * | 2014-12-30 | 2016-07-08 | 이원진 | a circuit breaker of radiation fin |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR930010967B1 (en) * | 1989-09-18 | 1993-11-18 | 미쯔비시 덴끼 가부시기가이샤 | Current limiting circuit breaker |
| EP2645486B1 (en) | 2012-03-29 | 2014-03-19 | ABB Technology AG | A pole connector for in-series circuit breakers |
| JP6229177B2 (en) | 2013-06-26 | 2017-11-15 | 日東工業株式会社 | Switch |
-
2017
- 2017-01-23 JP JP2017009350A patent/JP6680228B2/en active Active
- 2017-07-24 KR KR1020170093442A patent/KR102005625B1/en active IP Right Grant
- 2017-07-31 CN CN201710639829.XA patent/CN108346533A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3165442B2 (en) * | 1991-07-18 | 2001-05-14 | スクウエアー ディー カンパニー | Circuit breaker |
| CN201435322Y (en) * | 2009-06-03 | 2010-03-31 | 福建省三星机电设备有限公司 | radiator |
| JP2016006721A (en) * | 2014-06-20 | 2016-01-14 | 三菱電機株式会社 | Circuit breaker |
| KR20160080635A (en) * | 2014-12-30 | 2016-07-08 | 이원진 | a circuit breaker of radiation fin |
| CN105321750A (en) * | 2015-11-12 | 2016-02-10 | 浙江欧亿科技有限公司 | Arc extinguishing system for switch control and protection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110310850A (en) * | 2019-06-13 | 2019-10-08 | 广东电网有限责任公司 | A kind of finned air switch busbar radiator |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102005625B1 (en) | 2019-07-30 |
| KR20180087100A (en) | 2018-08-01 |
| JP2018120660A (en) | 2018-08-02 |
| JP6680228B2 (en) | 2020-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7852617B2 (en) | Main circuit terminal assembly for vacuum circuit breaker | |
| JP2009017774A (en) | Device for controlling soft start or soft stop of three-phase ac motor, so-called soft starter | |
| KR101553946B1 (en) | Molded case circuit breaker | |
| CN108269717B (en) | Breaker of plastic casing for DC | |
| CN108428603A (en) | Molded case circuit breakers for direct current | |
| US10748729B2 (en) | Low profile fusible disconnect switch device | |
| CN102543557A (en) | Switch unit and switchgear equipped therewith | |
| CN108346533A (en) | D-c circuit breaker | |
| CN1910718B (en) | Switching device | |
| CN101010841A (en) | Supply system for low-voltage switchgear | |
| JP6990294B2 (en) | Circuit breaker for gas-insulated switchgear | |
| CN103733294B (en) | There is the circuit breaker of the vent passages for efficiently radiates heat | |
| EP2573887B1 (en) | Cubicle-type gas-insulated switchgear | |
| EP2306482B1 (en) | Main circuit terminal assembly for vacuum circuit breaker | |
| JP2020533928A (en) | Disconnector pole for gas insulation switchgear | |
| CN212571845U (en) | Automatic radiating mid-placed switch cabinet airs exhaust | |
| CN204407278U (en) | Circuit breaker | |
| CN103165334B (en) | High voltage switching assembly | |
| CN212874379U (en) | Terminal clamp covering device for low-voltage circuit breaker and corresponding low-voltage circuit breaker | |
| CN111048370A (en) | High-segmentation arc extinguish chamber for circuit breaker | |
| AU2019202584B2 (en) | Switchgear cabinet with improved arrangement of a short-circuit device | |
| CN210806343U (en) | Static adjusting power cabinet | |
| CN211150409U (en) | Vacuum insulation transmission device of outdoor vacuum circuit breaker | |
| CN219918031U (en) | High-current switch cabinet heat radiation structure sharing pressure relief device | |
| CN215069714U (en) | Circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180731 |
|
| WD01 | Invention patent application deemed withdrawn after publication |