CN201773776U - Device for preventing flashover for circuit breaker - Google Patents
Device for preventing flashover for circuit breaker Download PDFInfo
- Publication number
- CN201773776U CN201773776U CN2010202545630U CN201020254563U CN201773776U CN 201773776 U CN201773776 U CN 201773776U CN 2010202545630 U CN2010202545630 U CN 2010202545630U CN 201020254563 U CN201020254563 U CN 201020254563U CN 201773776 U CN201773776 U CN 201773776U
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- CN
- China
- Prior art keywords
- protective cover
- circuit breaker
- antiarcing
- insulating apparatus
- arc insulating
- 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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Abstract
The utility model relates to a device for preventing flashover for a circuit breaker, which comprises a protective cover, wherein a vertical gap is arranged on the protective surface of the protective cover; and the protective cover is movably connected with a flaky arc isolation part for blocking the gap, thereby realizing the flashover prevention role for different wiring ways of users. The device can carry out flexible changes according to different assembly ways of the arc isolation part and the protective cover and the needs of different mounting ways of the users, realize two different arc prevention areas of the device for preventing the flashover for the circuit breaker, and realize reliable flashover prevention. The device has the characteristics of saving production and manufacturing cost and being simple and convenient for use.
Description
Technical field
The utility model relates to a kind of device that is used for the circuit breaker antiarcing-over, belongs to the low-voltage electrical apparatus field.
Background technology
Circuit breaker is a kind of device for switching that is applied to be used in the distribution network distributing electric energy and protection circuit and power-supply device, when line fault meets circuit breaker setting protective condition, and the circuit breaker disjunction.The disjunction of circuit breaker relies on separately realizing of moving contact and fixed contact, can produce electric arc when moving contact and fixed contact separate, and has only when arc extinction just can reach real disjunction.Arc extinction mainly relies on arc control device, and electric arc is introduced into arc control device under the effect of arc extinguishing grid pieces, utilizes the proximal pole pressure drop to make arc extinction.Along with power system development, transformer capacity is increasing, and is more and more higher to the disjunction requirement of circuit breaker, yet the volume of circuit breaker is but more and more littler, and the limitation in space makes and realizes high breaking difficulty more.Wherein the focus of technology is in striking and heat radiation.
At present, the development trend of circuit breaker is high breaking, miniaturization, no arcing, and promptly when improving basic mechanical design feature, emphasis improves the complex art economic index.As when improving short circuit breaking capacity, answer special concern to reduce flashover distance or realization " no arcing ".In the prior art, the device of antiarcing-over generally has only part of protective cover to form.And the different mounting means (wiring behind wiring before the plate, the plate, plug in type connection) of circuit breaker, the area that need carry out the arcing protection is different.Therefore, prior art can not provide reliable arcing protection at the different mounting means of circuit breaker.Because the device of antiarcing-over has only part of protective cover to form, if difference at the mounting means of circuit breaker, make different protective covers, then can reduce the flexibility that the user uses the circuit breaker mounting means greatly, also increased production, the cost of transportation of enterprise.
The utility model content
In order to overcome above-mentioned the problems of the prior art, the purpose of this utility model is to provide a kind of device that is used for the circuit breaker antiarcing-over, when requiring for the flexibility of circuit breaker mounting means with the assurance user, realizes the reliable arcing protection of breaker safe.
To achieve these goals, the utility model is by the following technical solutions:
A kind of device that is used for the circuit breaker antiarcing-over comprises protective cover, wherein: open vertical cut (V. cut) on the anti-mask of this protective cover; This protective cover and the sheet arc insulating apparatus flexible connection that is used to block its breach are to realize the antiarcing-over effect of the different modes of connection of user.
On the anti-mask of described protective cover the grooved guide rail is set vertically, described arc insulating apparatus can slide up and down with protective cover and is connected by inserting this guide rail.
On the described protective cover steam vent is set.
Described arc insulating apparatus is provided with locator protrusions, and this locator protrusions can rest in the steam vent of protective cover.
Described arc insulating apparatus and protective cover clamping.
Draw-in groove or buckle are set on the described protective cover; Described arc insulating apparatus correspondingly is provided with buckle or draw-in groove; Described arc insulating apparatus and arc insulating apparatus realize that by draw-in groove and buckle structure clamping cooperates.
The utility model is owing to increased the arc insulating apparatus that can flexibly connect on the basis of protective cover, can be at any time according to the variation of circuit breaker mounting means change arc insulating apparatus relatively with the link position of protective cover, realization provides the effect of reliable protection arcing to the different mounting means of circuit breaker.
Description of drawings
Fig. 1 is the decomposing schematic representation that is used for circuit breaker antiarcing-over device of the utility model first case study on implementation;
Fig. 2 is the protective cover schematic diagram of the utility model first case study on implementation;
Fig. 3 is the arc insulating apparatus schematic diagram of the utility model first case study on implementation;
Fig. 4 and Fig. 5 are the preventing arc schematic diagram of the different modes of connection of the corresponding circuit breaker of two kinds of assembling positions of the device of circuit breaker antiarcing-over in the utility model first case study on implementation;
Fig. 6 is the arc insulating apparatus schematic diagram in the utility model second case study on implementation;
Fig. 7 is the protective cover position assumption diagram in the utility model second case study on implementation;
Fig. 8 is used for the schematic diagram of circuit breaker antiarcing-over for the utility model second case study on implementation.
Embodiment
The utility model is the device that is used for the circuit breaker antiarcing-over, comprises protective cover, opens vertical cut (V. cut) on the anti-mask of this protective cover; This protective cover and the sheet arc insulating apparatus flexible connection that is used to block its breach are to realize the antiarcing-over effect of the different modes of connection of user.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Case study on implementation 1:
See Fig. 1-Fig. 3, have three vertical cut (V. cut)s 11 on the anti-mask of protective cover 1, in each vertical cut (V. cut) 11 both sides grooved guide rail 12 is set vertically on the anti-mask of protective cover 1, the arc insulating apparatus 2 of piece shape shape can slide up and down with protective cover 1 and is connected by inserting this guide rail 12.Steam vent 13 is set on the protective cover 1.
One end of arc insulating apparatus 2 is provided with locator protrusions 21, and this locator protrusions 21 can rest in the steam vent 13 of protective cover 1.
Wherein the guide rail mating surface 23 of arc insulating apparatus 2 both sides can move along O-O axis (perpendicular to the paper direction) direction in the guide-track groove 11 of protective cover 1, the locator protrusions 21 of arc insulating apparatus 2 is limited in the steam vent 13 of protective cover 1, make that arc insulating apparatus 2 can be static with respect to protective cover 1 at the O-O axis direction, plays the effect of circuit breaker antiarcing-over.Make arc insulating apparatus 2 under the situation of E-E direction generation strain at manpower, the restriction protrusion 21 of arc insulating apparatus 1 deviates to enter the another one steam vent in the steam vent 13 of protective cover 1, realizes the variation of two stop places.The variation of these two stop places has adapted to the preceding wiring (see figure 4) preventing arc needs different with wiring (see figure 5) behind the breaker plate of breaker plate.3 is circuit breaker internal wiring plate among the figure, and 4 is external terminal board or binding post.
Case study on implementation 2:
Fig. 6 and Fig. 7 have showed that a kind of position that is used for the device of circuit breaker antiarcing-over concerns schematic diagram, and it comprises protective cover 1 and arc insulating apparatus 2.Wherein on the back side of arc insulating apparatus 2 buckle 23 is arranged, have draw-in groove 14 on the breach both sides of protective cover 1.Arc insulating apparatus realizes that by buckle 23 and draw-in groove 14 clamping cooperates with protective cover.Independent use of protective cover and protective cover and arc insulating apparatus clamping are used, and can realize the preventing arc needs of circuit breaker different installation.
In addition, also can buckle be set on protective cover, draw-in groove correspondingly is set on arc insulating apparatus, arc insulating apparatus and arc insulating apparatus realize that by draw-in groove and buckle clamping cooperates.
Above-mentioned case study on implementation does not constitute any type of restriction to the desired protection range of the utility model, and claims of the present utility model have covered all modifications and changes.
Claims (7)
1. a device that is used for the circuit breaker antiarcing-over comprises protective cover, it is characterized in that:
Open vertical cut (V. cut) on the anti-mask of this protective cover;
This protective cover and the sheet arc insulating apparatus flexible connection that is used to block its breach are to realize the antiarcing-over effect of the different modes of connection of user.
2. the device that is used for the circuit breaker antiarcing-over according to claim 1 is characterized in that:
On the anti-mask of described protective cover the grooved guide rail is set vertically, described arc insulating apparatus can slide up and down with protective cover and is connected by inserting this guide rail.
3. the device that is used for the circuit breaker antiarcing-over according to claim 1 and 2 is characterized in that:
On the described protective cover steam vent is set.
4. the device that is used for the circuit breaker antiarcing-over according to claim 3 is characterized in that:
Described arc insulating apparatus is provided with locator protrusions, and this locator protrusions can rest in the steam vent of protective cover.
5. the device that is used for the circuit breaker antiarcing-over according to claim 1 is characterized in that:
Described arc insulating apparatus and protective cover clamping.
6. the device that is used for the circuit breaker antiarcing-over according to claim 5 is characterized in that:
Draw-in groove or buckle are set on the described protective cover;
Described arc insulating apparatus correspondingly is provided with buckle or draw-in groove;
Described arc insulating apparatus and arc insulating apparatus realize that by draw-in groove and buckle structure clamping cooperates.
7. the device that is used for the circuit breaker antiarcing-over according to claim 1 and 2 is characterized in that:
Described arc insulating apparatus is provided with steam vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202545630U CN201773776U (en) | 2010-06-30 | 2010-06-30 | Device for preventing flashover for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202545630U CN201773776U (en) | 2010-06-30 | 2010-06-30 | Device for preventing flashover for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201773776U true CN201773776U (en) | 2011-03-23 |
Family
ID=43753620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202545630U Expired - Lifetime CN201773776U (en) | 2010-06-30 | 2010-06-30 | Device for preventing flashover for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201773776U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315047A (en) * | 2010-06-30 | 2012-01-11 | 北京翠祥电器元件有限公司 | Flashover preventing device for circuit breaker |
| CN112151339A (en) * | 2020-09-04 | 2020-12-29 | 北京双杰电气股份有限公司 | Arc extinguishing device of molded case circuit breaker and molded case circuit breaker |
-
2010
- 2010-06-30 CN CN2010202545630U patent/CN201773776U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315047A (en) * | 2010-06-30 | 2012-01-11 | 北京翠祥电器元件有限公司 | Flashover preventing device for circuit breaker |
| CN112151339A (en) * | 2020-09-04 | 2020-12-29 | 北京双杰电气股份有限公司 | Arc extinguishing device of molded case circuit breaker and molded case circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110323 Effective date of abandoning: 20140402 |
|
| RGAV | Abandon patent right to avoid regrant |