CN201048105Y - DC fast chopper - Google Patents
DC fast chopper Download PDFInfo
- Publication number
- CN201048105Y CN201048105Y CNU2007200705173U CN200720070517U CN201048105Y CN 201048105 Y CN201048105 Y CN 201048105Y CN U2007200705173 U CNU2007200705173 U CN U2007200705173U CN 200720070517 U CN200720070517 U CN 200720070517U CN 201048105 Y CN201048105 Y CN 201048105Y
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- CN
- China
- Prior art keywords
- arc
- metal gate
- shell
- flash barrier
- extinguish chamber
- 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.)
- Expired - Lifetime
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a DC fast chopper, which comprises a main body and an arc extinguishing chamber, wherein, the arc extinguishing chamber comprises a shell, a plurality of flash barriers, a plurality of metal gates, a plurality of division boards, and a pair of joint covers. The shell is made of lumpish molding material. The flash barriers are arranged in the shell. One metal gate and one flash barrier are clung together to form a metal gate and flash barrier group, a proper clearance is left between groups, a plurality of metal gate and flash barrier units form a unit. One division board is inserted between every two units to separate the units. The joint covers are respectively arranged at two sides of the shell, one end of each joint cover is directly communicated with the starting arc angle of the arc extinguishing chamber, and the other end of each joint cover is close to the metal gate in the arc extinguishing chamber. The arc extinguishing chamber of the DC fast chopper of the utility model has high disjunction capacity and simple structure, and the shape size is small, and the volume is the half of the traditional arc extinguishing chamber.
Description
Technical field
The utility model relates to a kind of direct current quick breaker, particularly relates to the arc-extinguish chamber of direct current quick breaker.
Background technology
At present; the application of direct current quick breaker is very extensive, and it is applicable to usually: in track traffic (light rail, subway, magnetic suspension, single track, electric car) traction substation, silicon rectifier device, silicon controlled rectifier, direct current machine and the feeder line of industry such as metallurgical steel rolling, mining, chemical industry electrolysis be as the nonpolarity automatic control high speed circuit breaker of the usefulness of main circuit short circuit and overload protection.
Direct current quick breaker generally includes pedestal and is positioned at the arc-extinguish chamber of pedestal top.Traditional arc-extinguish chamber comprises the arc-extinguish chamber shell that is assembled into by epoxy plate and is positioned at the flash barrier of enclosure that described flash barrier is formed by BMC (DMC) and the overlapping compacting of iron railings sheet.Have 36 flash barriers in the breaker arc extinguishing cover as common DS14 series 1500V, be spaced apart 15mm between the flash barrier.Bottom at the arc-extinguish chamber shell adds yoke.Whole arc-extinguish chamber is narrow down and wide shape, and overall dimensions is bigger.
The breaking capacity of this arc-extinguish chamber is low, and free gas distributes slowly.And, increase arc voltage in order to improve its breaking capacity, and just must increase the quantity of flash barrier, so just certainly will increase the overall dimension of arc-extinguish chamber.And even increase the overall dimension of arc-extinguish chamber, its breaking capacity does not still reach track traffic user's requirement.
The utility model content
The purpose of this utility model is to overcome existing defective in the prior art, provides that a kind of arc extinguishing ability is strong, disjunction index height, can satisfy the direct current quick breaker of the novelty that the track traffic trailer system uses fully.
The utility model is achieved through the following technical solutions its purpose: a kind of direct current quick breaker, comprise matrix and arc-extinguish chamber, and described arc-extinguish chamber comprises: shell, it is made by BMC; A plurality of flash barriers, it is arranged among the shell; A plurality of metal gate sheets, one of them described metal gate sheet and described flash barrier are close together and form a metal gate sheet and flash barrier group, described group with group between remain with suitable gap, and several described metal gate sheets and unit of flash barrier group formation; A plurality of demarcation strips wherein, insert a described demarcation strip, so that each unit separation is opened between each described unit; A pair of joint cover, they are separately positioned on the both sides of described shell, the direct UNICOM of arc leading angle of an end of each joint cover and arc-extinguish chamber, and the metal gate sheet is close in the other end and the arc-extinguish chamber; Wherein, the global facility setting central space of forming by described metal gate sheet, flash barrier and demarcation strip in the enclosure, the lower space that is positioned at described global facility below in the shell is less than described central space, and the upper space that is positioned at described global facility top in the shell is greater than described central space.
Preferably, described flash barrier is made by BMC.
Preferably, described metal gate sheet and flash barrier group are 59 groups.
Because the utility model adopts technique scheme, make and the utlity model has following tangible technique effect: novel mechanism, arc voltage produce high, electric arc move upward be cut off into short arc, cool off, help the distributing of free gas rapidly, extinguish arcs more apace, thereby improve its breaking capacity widely, simple in structure, saved yoke, magnetic pole plate etc., and overall dimension is little, and its volume is half of traditional arc-extinguish chamber.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the schematic diagram of direct current quick breaker of the present utility model;
Fig. 2 is the schematic diagram of arc-extinguish chamber of the direct current quick breaker of Fig. 1;
Fig. 3 is the internal structure schematic diagram according to arc-extinguish chamber of the present utility model;
Fig. 4 is the cutaway view according to arc-extinguish chamber of the present utility model;
Fig. 5 is the schematic diagram according to the flash barrier of arc-extinguish chamber of the present utility model;
Fig. 6 is the schematic diagram according to the metal gate sheet of arc-extinguish chamber of the present utility model;
Fig. 7 is the schematic diagram according to the demarcation strip of arc-extinguish chamber of the present utility model.
Embodiment
Direct current quick breaker of the present utility model as shown in Figure 1, the arc-extinguish chamber 15 that it comprises matrix and is positioned at matrix top.Comprise in the matrix: fork arm 1, closed holding device 2, coil 3, auxiliary contact box 4, earthing device 5, buffer 6, push rod 7, moving contact 8, overcurrent trip gear 9, base 10, radiator 11, down bus-bar 12, take off mouthful nut 13 and go up bus-bar 14.
See also Fig. 2-Fig. 7, the shell of arc-extinguish chamber 15 is formed by the BMC compacting, comprises header board, back plate and two side plates.The inside of arc-extinguish chamber is separated by flash barrier 22 and metal gate sheet 23.Wherein, flash barrier 22 can be made by BMC, and metal gate sheet 23 and flash barrier are close together and form 22 groups of a metal gate sheet 23 and flash barriers, remain with suitable gap between group and the group, several metal gate sheets 23 and flash barrier form a unit for 22 groups, between each unit, insert demarcation strip 21, so that each unit separation is opened.The integral body that metal gate sheet 23, flash barrier 22 and demarcation strip 21 are formed vertically is placed in the header board and the groove between the plate of back of arc-extinguish chamber 15.Biside plate place at arc-extinguish chamber 15 also is provided with joint cover 24, the direct UNICOM of arc leading angle of an end of each joint cover 24 and arc-extinguish chamber 15, and metal gate sheet 23 is close in the other end and the arc-extinguish chamber.As shown in Figure 4, the bottom of arc-extinguish chamber 15 has certain space; The middle part is filled by metal gate sheet 23, flash barrier 22 and demarcation strip 21, and shared space is greater than the space of bottom; And top surplus space maximum.
The concrete parameter of each parts needs to determine according to condition of work in the arc-extinguish chamber 15, and for example the advantage according to the arc extinguishing ability requires, the size of generation arc voltage is determined the quantity of metal gate sheet 23; Distribute requirement according to free gas, determine the gap between the metal gate sheet 23.According to a kind of specific implementation form, 22 groups of 59 groups of metal gate sheets 23 and flash barriers are set in arc-extinguish chamber, the gap between group and the group is 7.5mm.The size of this arc-extinguish chamber is about half of traditional arc-extinguish chamber size.
During use, electric arc directly enters on the metal gate sheet of arc-extinguish chamber both sides by joint cover from the arc leading angle of arc-extinguish chamber 15, produces long arc, and electric arc is cut into countless short arcs in the process that moves upward, and produces the camber pressure.Electric arc continues to move upward along flash barrier, and electric arc is cooled rapidly, and free gas distributes very soon like this, so breaking capacity improved greatly, and flashover distance is also little.
Claims (3)
1. a direct current quick breaker comprises matrix and arc-extinguish chamber, it is characterized in that described arc-extinguish chamber comprises:
Shell, it is made by BMC;
A plurality of flash barriers, it is arranged among the shell;
A plurality of metal gate sheets, one of them described metal gate sheet and described flash barrier are close together and form a metal gate sheet and flash barrier group, described group with group between remain with suitable gap, and several described metal gate sheets and unit of flash barrier group formation;
A plurality of demarcation strips wherein, insert a described demarcation strip, so that each unit separation is opened between each described unit; A pair of joint cover, they are separately positioned on the both sides of described shell, the direct UNICOM of arc leading angle of an end of each joint cover and arc-extinguish chamber, and the metal gate sheet is close in the other end and the arc-extinguish chamber;
Wherein, the global facility setting central space of forming by described metal gate sheet, flash barrier and demarcation strip in the enclosure, the lower space that is positioned at described global facility below in the shell is less than described central space, and the upper space that is positioned at described global facility top in the shell is greater than described central space.
2. direct current quick breaker as claimed in claim 1 is characterized in that described flash barrier made by BMC.
3. direct current quick breaker as claimed in claim 1 is characterized in that described metal gate sheet and flash barrier group are 59 groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200705173U CN201048105Y (en) | 2007-05-31 | 2007-05-31 | DC fast chopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200705173U CN201048105Y (en) | 2007-05-31 | 2007-05-31 | DC fast chopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201048105Y true CN201048105Y (en) | 2008-04-16 |
Family
ID=39300697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200705173U Expired - Lifetime CN201048105Y (en) | 2007-05-31 | 2007-05-31 | DC fast chopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201048105Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908450A (en) * | 2010-07-20 | 2010-12-08 | 中国船舶重工集团公司第七一二研究所 | Direct current quick breaker |
| CN105118727A (en) * | 2015-08-20 | 2015-12-02 | 上海本固电气设备有限公司 | Vehicle-mounted direct current high-speed circuit breaker arc chute |
| CN107086139A (en) * | 2017-05-10 | 2017-08-22 | 平高集团有限公司 | A kind of arc-control device and the breaker using the arc-control device |
| CN111584292A (en) * | 2019-05-21 | 2020-08-25 | 杭州德睿达电气有限公司 | Arc extinguishing chamber of direct current quick circuit breaker |
| CN111584322A (en) * | 2019-05-21 | 2020-08-25 | 杭州德睿达电气有限公司 | Direct-current high-breaking magnetic blow-out quick circuit breaker |
| CN113707502A (en) * | 2020-05-21 | 2021-11-26 | 华为技术有限公司 | Circuit breaker and power distribution system |
-
2007
- 2007-05-31 CN CNU2007200705173U patent/CN201048105Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908450A (en) * | 2010-07-20 | 2010-12-08 | 中国船舶重工集团公司第七一二研究所 | Direct current quick breaker |
| CN101908450B (en) * | 2010-07-20 | 2012-07-18 | 中国船舶重工集团公司第七一二研究所 | Direct current quick breaker |
| CN105118727A (en) * | 2015-08-20 | 2015-12-02 | 上海本固电气设备有限公司 | Vehicle-mounted direct current high-speed circuit breaker arc chute |
| CN107086139A (en) * | 2017-05-10 | 2017-08-22 | 平高集团有限公司 | A kind of arc-control device and the breaker using the arc-control device |
| CN111584292A (en) * | 2019-05-21 | 2020-08-25 | 杭州德睿达电气有限公司 | Arc extinguishing chamber of direct current quick circuit breaker |
| CN111584322A (en) * | 2019-05-21 | 2020-08-25 | 杭州德睿达电气有限公司 | Direct-current high-breaking magnetic blow-out quick circuit breaker |
| CN111584322B (en) * | 2019-05-21 | 2022-07-26 | 杭州德睿达电气有限公司 | Direct-current high-breaking magnetic blow-out quick circuit breaker |
| CN113707502A (en) * | 2020-05-21 | 2021-11-26 | 华为技术有限公司 | Circuit breaker and power distribution system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080416 |
|
| CX01 | Expiry of patent term |