CN204857637U - Circuit breaker and gaseous guiding device thereof - Google Patents
Circuit breaker and gaseous guiding device thereof Download PDFInfo
- Publication number
- CN204857637U CN204857637U CN201520376861.XU CN201520376861U CN204857637U CN 204857637 U CN204857637 U CN 204857637U CN 201520376861 U CN201520376861 U CN 201520376861U CN 204857637 U CN204857637 U CN 204857637U
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- circuit breaker
- guiding device
- control device
- air
- arc control
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Abstract
The utility model discloses a circuit breaker and gaseous guiding device thereof, gaseous guiding device are located the explosion chamber rear portion, and gaseous guiding device will split into two independent air currents mutually by explosion chamber exhaust air current. The utility model discloses a circuit breaker has still been revead, including gaseous guiding device, gaseous guiding device lies in the explosion chamber rear portion, and gaseous guiding device will split into two independent air currents mutually, two air current from different gas vent discharge circuit breakers by explosion chamber exhaust air current. The utility model discloses a gaseous guiding device of circuit breaker can move towards the space of make full use of circuit breaker and the space of explosion chamber by the accurate air current that guides in the circuit breaker for the ability of air current flow and electric arc entering explosion chamber is showing and is improving, thereby promotes breaking capacity in limited space.
Description
Technical field
The utility model relates to field of circuit breakers, more particularly, relates to the guiding device of air flow direction in circuit breaker.
Background technology
Along with circuit breaker is towards future developments such as miniaturization, densification, high-performance, product often needs to improve breaking capacity in very limited space.The quality that raising and the pilot arc of circuit breaker breaking capacity enter arc control device is directly related, and the high inflation gas that the motion of electric arc produces by arc burning affects, therefore, pilot arc enters rapidly the air flow direction that one of key of arc control device blow-out is in reasonable combing breaker arc extinguishing region.
Due to space layout densification increasingly, and the breaking capacity of circuit breaker improves constantly, and reliable blow-out is technical one large difficult point always.In traditional circuit breaker in arc extinguishing region, space is well-to-do, and the high inflation gas that arc burning produces can discharge circuit breaker preferably, and therefore air flow energy leads electric arc to enter arc control device blow-out preferably; But after conventional circuit breaker miniaturization, arc extinguishing regional space is also compressed, and the high inflation gas that arc burning produces locally can only discharge circuit breaker, and remaining high inflation gas " blocks up " in arc extinguishing region, stop electric arc to enter arc control device, cause breaking capacity to reduce.
Utility model content
The utility model is intended to propose a kind of high inflation gas by accurately guiding air flow direction to make arc burning produce and effectively discharges circuit breaker, improves the gas guiding device of circuit breaker breaking capacity.
According to an embodiment of the present utility model, propose a kind of gas guiding device of circuit breaker, gas guiding device is positioned at arc control device rear portion, and the air-flow of being discharged by arc control device is divided into mutually independently two air-flows by gas guiding device.
In one embodiment, gas guiding device is dividing plate, has pointed projection in the middle part of dividing plate.
In one embodiment, the pointed projection of dividing plate aims at the middle part of arc control device, the air-flow of being discharged by arc control device is split into mutually independently upper air and lower stream of airflow, and upper air is from the top of pointed projection along separator flow, and lower stream of airflow is from the below of pointed projection along separator flow.
According to an embodiment of the present utility model, propose a kind of circuit breaker, comprise gas guiding device, gas guiding device is positioned at arc control device rear portion, the air-flow of being discharged by arc control device is divided into mutually independently two air-flows by gas guiding device, and two air-flows discharge circuit breaker from different exhaust outlets.
In one embodiment, gas guiding device is dividing plate, has pointed projection in the middle part of dividing plate.
In one embodiment, the pointed projection of dividing plate aims at the middle part of arc control device, the air-flow of being discharged by arc control device is split into mutually independently upper air and lower stream of airflow, and upper air is from the top of pointed projection along separator flow, and lower stream of airflow is from the below of pointed projection along separator flow.
In one embodiment, circuit breaker has upper air vent and lower exhaust port, and upper air discharges circuit breaker from upper air vent, and lower stream of airflow discharges circuit breaker from lower exhaust port.
The gas guiding device of circuit breaker of the present utility model can accurately guide the air-flow in circuit breaker to move towards, make full use of the space of circuit breaker and the space of arc control device, the ability making air flow rate and electric arc enter arc control device significantly improves, thus promotes breaking capacity in limited space.
Accompanying drawing explanation
The above and other feature of the utility model, character and advantage are by more obvious by what become below in conjunction with the description of drawings and Examples, and Reference numeral identical in the accompanying drawings represents identical feature all the time, wherein:
Fig. 1 discloses the cross section structure schematic diagram of the circuit breaker according to an embodiment of the present utility model.
Fig. 2 discloses the perspective view of the circuit breaker according to an embodiment of the present utility model.
Fig. 3 discloses the schematic diagram of the gas guiding device of the circuit breaker according to an embodiment of the present utility model.
Fig. 4 discloses the air flow vector figure in traditional circuit breaker.
Fig. 5 discloses the air flow vector figure of the circuit breaker according to an embodiment of the present utility model.
Embodiment
First with reference to shown in figure 4, Fig. 4 discloses the air flow vector figure in traditional circuit breaker.It should be noted that, Fig. 4 comes from the screenshot capture of instrument and equipment, and this instrument can perception high temperature high-energy fluid.In the screenshotss shown in Fig. 4, the more shallow representation temperature of color or energy higher.As can be seen from Fig. 4, in traditional circuit breaker, when carrying out arc extinguishing, in fact the space of circuit breaker internal and the space of arc control device inside are not fully utilized.Air-flow concentrates in the exhaust passage 403 of circuit breaker bottom, and therefore, the air-flow in arc control device also mainly concentrates on bottom, and the upper air of arc control device is less, and utilance is not high.Because the efficiency of actual of arc control device is lower, ability electric arc being introduced arc control device is also restricted, causes the breaking capacity of circuit breaker limited.
The utility model proposes a kind of gas guiding device by accurately guiding air flow direction to improve circuit breaker breaking capacity.Fig. 1 ~ Fig. 3 discloses circuit breaker according to one embodiment of the invention and gas guiding device thereof.This circuit breaker comprises gas guiding device 101, and gas guiding device 101 is positioned at arc control device 201 rear portion.The air-flow of being discharged by arc control device 201 is divided into mutually independently two air-flows by gas guiding device 101, and two air-flows discharge circuit breaker from different exhaust outlets.In the illustrated embodiment in which, gas guiding device 101 is dividing plates, has pointed protruding 111 (shown in figure 3) in the middle part of dividing plate.Pointed protruding 111 of dividing plate aim at the middle part of arc control device 201, the air-flow of being discharged by arc control device is split into mutually independently upper air 102 and lower stream of airflow 103, upper air 102 is from the top of pointed projection along separator flow, and lower stream of airflow 103 is from the below of pointed projection along separator flow.Circuit breaker has upper air vent 121 and lower exhaust port 123, and upper air 102 discharges circuit breaker from upper air vent 121, and lower stream of airflow 103 discharges circuit breaker from lower exhaust port 123.In the illustrated embodiment in which, pointed protruding 111 are configured to the outlet being close to arc control device 201, and like this, the upper gas 102 of discharging from arc control device top 202 and the lower gas 103 of discharging from arc control device bottom 203 are completely isolated, do not interfere with each other, discharge from different exhaust outlets independently of each other.
Shown in figure 5, Fig. 5 discloses the air flow vector figure of the circuit breaker according to an embodiment of the present utility model.Fig. 5 is the screenshot capture coming from instrument and equipment equally, and this instrument can perception high temperature high-energy fluid.In the screenshotss shown in Fig. 5, the more shallow representation temperature of color or energy higher.As can be seen from Fig. 5, in circuit breaker of the present utility model, due to the existence of airflow guiding device 501, when carrying out arc extinguishing, owing to having independently exhaust passage 502 and 503 up with below, the space of circuit breaker internal and the space of arc control device inside are fully utilized.Uniform stream is distributed in the exhaust passage 502 on circuit breaker top and the exhaust passage 503 of bottom, air-flow in arc control device is also evenly distributed in whole spaces of arc control device, as shown in the figure, almost identical with the air flow rate in arc control device bottom 505 on arc control device top 504.Comparison diagram 4 and Fig. 5 visible, the air flow rate in Fig. 5 in arc control device is significantly higher than Fig. 4, and therefore the efficiency of actual of arc control device is higher, and ability electric arc being introduced arc control device is also improved, and the breaking capacity of circuit breaker is significantly promoted.
Circuit breaker of the present utility model and gas guiding device thereof effectively divide the trend of conductive gas in circuit breaker, enter arc control device so that this pilot arc is more effective from striking road, improve short circuit breaking capacity.Effectively can solve the service efficiency problem of short circuit breaking capacity under product space compacter before comparing, large short-circuit current condition and arc control device.
The gas guiding device of circuit breaker of the present utility model can accurately guide the air-flow in circuit breaker to move towards, make full use of the space of circuit breaker and the space of arc control device, the ability making air flow rate and electric arc enter arc control device significantly improves, thus promotes breaking capacity in limited space.
Above-described embodiment is available to be familiar with person in the art to realize or to use of the present utility model; those skilled in the art can when not departing from utility model thought of the present utility model; various modifications or change are made to above-described embodiment; thus protection range of the present utility model not limit by above-described embodiment, and should be the maximum magnitude meeting the inventive features that claims are mentioned.
Claims (7)
1. a gas guiding device for circuit breaker, is characterized in that, described gas guiding device is positioned at arc control device rear portion, and the air-flow of being discharged by arc control device is divided into mutually independently two air-flows by described gas guiding device.
2. the gas guiding device of circuit breaker as claimed in claim 1, it is characterized in that, described gas guiding device is dividing plate, has pointed projection in the middle part of dividing plate.
3. the gas guiding device of circuit breaker as claimed in claim 2, it is characterized in that, the pointed projection of described dividing plate aims at the middle part of arc control device, the air-flow of being discharged by arc control device is split into mutually independently upper air and lower stream of airflow, upper air is from the top of pointed projection along separator flow, and lower stream of airflow is from the below of pointed projection along separator flow.
4. a circuit breaker, it is characterized in that, comprise gas guiding device, described gas guiding device is positioned at arc control device rear portion, the air-flow of being discharged by arc control device is divided into mutually independently two air-flows by described gas guiding device, and two air-flows discharge circuit breaker from different exhaust outlets.
5. circuit breaker as claimed in claim 4, it is characterized in that, described gas guiding device is dividing plate, has pointed projection in the middle part of dividing plate.
6. circuit breaker as claimed in claim 5, it is characterized in that, the pointed projection of described dividing plate aims at the middle part of arc control device, the air-flow of being discharged by arc control device is split into mutually independently upper air and lower stream of airflow, upper air is from the top of pointed projection along separator flow, and lower stream of airflow is from the below of pointed projection along separator flow.
7. circuit breaker as claimed in claim 6, it is characterized in that, described circuit breaker has upper air vent and lower exhaust port, and upper air discharges circuit breaker from upper air vent, and lower stream of airflow discharges circuit breaker from lower exhaust port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520376861.XU CN204857637U (en) | 2015-06-03 | 2015-06-03 | Circuit breaker and gaseous guiding device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520376861.XU CN204857637U (en) | 2015-06-03 | 2015-06-03 | Circuit breaker and gaseous guiding device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204857637U true CN204857637U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520376861.XU Active CN204857637U (en) | 2015-06-03 | 2015-06-03 | Circuit breaker and gaseous guiding device thereof |
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| CN (1) | CN204857637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269721A (en) * | 2016-12-30 | 2018-07-10 | 嘉灵科技有限公司 | Base bleed breaker |
-
2015
- 2015-06-03 CN CN201520376861.XU patent/CN204857637U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108269721A (en) * | 2016-12-30 | 2018-07-10 | 嘉灵科技有限公司 | Base bleed breaker |
| CN108269721B (en) * | 2016-12-30 | 2019-05-31 | 嘉灵科技有限公司 | Base bleed breaker |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |