CN102299028B - A kind of circuit breaker overload-alarm non-tripping device - Google Patents
A kind of circuit breaker overload-alarm non-tripping device Download PDFInfo
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- CN102299028B CN102299028B CN201110226634.5A CN201110226634A CN102299028B CN 102299028 B CN102299028 B CN 102299028B CN 201110226634 A CN201110226634 A CN 201110226634A CN 102299028 B CN102299028 B CN 102299028B
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- circuit breaker
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- overload
- trip shaft
- fixed support
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Abstract
The present invention discloses a kind of circuit breaker overload-alarm non-tripping device, it trip shaft comprising release pedestal and be installed on release pedestal, described trip shaft connects tripping mechanism, described release pedestal is also provided with several bimetal leafs, coordinate bimetal leaf, on release pedestal, rotating lever is installed, on described lever, corresponding bimetal leaf is provided with to adjust and requires the screw of adjusting of warning overload current value, the corresponding lever in one end of described trip shaft is provided with fixed support, described fixed support is fixed with sensitive switch, above-mentioned circuit breaker overload-alarm non-tripping device is in some special requirement occasion, when there is overload or short circuit in circuit breaker, can not thread off under this fault level, but can alarm signal be sent, to make circuit breaker user judge according to using at that time on-the-spot special circumstances and to determine accordingly, multiple function selection can be carried out, versatility is good, adapt to different operational environment needs.
Description
Technical field
The present invention relates to a kind of circuit breaker apparatus for warning overload, particularly relate to a kind of circuit breaker overload-alarm non-tripping device.
Background technology
At present, the existing on-off action of circuit breaker, can carry out again decompression, under-voltage, overload and the electrical equipment of short-circuit protection automatically.Protection is carried out to power circuit and motor etc., can automatic shutdown circuit when serious overload or short circuit and the fault such as under-voltage occur for they, but circuit breaker is in some particular application in a particular application, need to provide a kind of special defencive function, namely when distribution line is in overload, circuit breaker sends alarm signal but can not make the function of circuit breaker tripping, unpredictalbe fault of distribution line and the emergency starting of fire pump during fire in such as fire-fighting system, all likely can cause the appearance of transshipping, but in order to win the quality time of handling failure, circuit breaker can not be threaded off under this fault level, but can alarm signal be sent to make circuit breaker user judge according to using at that time on-the-spot special circumstances and to determine accordingly.
Traditional circuit breaker, can automatic shutdown circuit immediately when after generation overload-alarm, can not be judged by user according to the situation of reality and determine accordingly, function singleness, poor universality.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of circuit breaker overload-alarm non-tripping device, it is in certain special requirement occasion, when there is overload or short circuit in circuit breaker, can not thread off under this fault level, but can alarm signal be sent, to make circuit breaker user judge according to using at that time on-the-spot special circumstances and to determine accordingly.
The object of the invention is to be achieved through the following technical solutions:
A kind of circuit breaker overload-alarm non-tripping device, it trip shaft comprising release pedestal and be installed on release pedestal, described trip shaft connects tripping mechanism, wherein, described release pedestal is also provided with several bimetal leafs, coordinate bimetal leaf, on release pedestal, rotating lever is installed, on described lever, corresponding bimetal leaf is provided with to adjust and requires the screw of adjusting of warning overload current value, the corresponding lever in one end of described trip shaft is provided with fixed support, described fixed support is fixed with sensitive switch, described sensitive switch and alarm communicate to connect.
Especially, the both sides of described release pedestal are all provided with a lever mounting panel, and described lever mounting panel offers through hole, and the two ends of described lever are arranged at can being installed on lever mounting panel around the rotation of lever mounting panel by lever in through hole.
Especially, described fixed support offers fixing hole, by hold-down screw, fixed support is fixed in trip shaft.
Beneficial effect of the present invention is, described circuit breaker overload-alarm non-tripping device is in certain special requirement occasion, when there is overload or short circuit in circuit breaker, can not thread off under this fault level, but can alarm signal be sent, to make circuit breaker user judge according to using at that time on-the-spot special circumstances and to determine accordingly, multiple function selection can be carried out, versatility is good, adapts to different operational environment needs.
Accompanying drawing explanation
According to drawings and embodiments the present invention is described in further detail below.
Fig. 1 is the three-dimensional exploded view of circuit breaker overload-alarm non-tripping device of the present invention;
Fig. 2 is the structural representation of the using state of circuit breaker overload-alarm non-tripping device of the present invention;
Fig. 3 is the structural representation of the another using state of circuit breaker overload-alarm non-tripping device of the present invention.
In figure:
1, release pedestal; 2, lever mounting panel; 3, trip shaft; 4, lever; 5, bimetal leaf; 6, to adjust screw; 7, fixed support; 8, sensitive switch; 9, hold-down screw.
Embodiment
Please refer to shown in Fig. 1, Fig. 1 is the three-dimensional exploded view of circuit breaker overload-alarm non-tripping device of the present invention, in the present embodiment, a kind of circuit breaker overload-alarm non-tripping device comprises release pedestal 1, the trip shaft 3 that described release pedestal 1 is provided with, described trip shaft 3 connects tripping mechanism, described release pedestal 1 is also provided with several bimetal leafs 5, and the both sides of described release pedestal 1 are all provided with a lever mounting panel 2, described lever mounting panel 2 offers through hole, the two ends of described lever 4 are arranged at and are installed on lever mounting panel 2 by lever 4 in through hole, described lever 4 can rotate around lever mounting panel 2, and corresponding bimetal leaf 5 is provided with screw 6 of adjusting on described lever 4, the overload current value that described screw 6 of adjusting is reported to the police in order to circuit breaker requirement of adjusting, one end of described trip shaft 3 is provided with fixed support 7, described fixed support 7 is fixed with sensitive switch 8, described sensitive switch 8 communicates to connect with alarm, and described fixed support 7 offers fixing hole, by hold-down screw 9, fixed support 7 is fixed in trip shaft 3.
Refer to shown in Fig. 2 and Fig. 3, Fig. 2 is the structural representation of the using state of circuit breaker overload-alarm non-tripping device of the present invention; Fig. 3 is the structural representation of the another using state of circuit breaker overload-alarm non-tripping device of the present invention.
During work, when sensitive switch 8 and fixed support 7 are in position in Fig. 2 (i.e. fixed support 7 and sensitive switch 8 with trip shaft 3 toggle it to leftward position), now as circuit transships, bimetal leaf 5 for overload protection is bent to the screw 6 of adjusting acted on lever 4, lever 4 is caused to promote sensitive switch 8, but the bottom surface of installing the fixed support 7 of sensitive switch 8 is retrained by release pedestal 1 and can not move, and the bimetal leaf 5 be bent promotes sensitive switch 8 makes its change over contact action send overload-alarm signal; The hold-down screw 9 be arranged on fixed support 7 makes connection or the disengaging of this fixed support 7 and trip shaft 3 in order to realization, tighten hold-down screw 9 make the two connect time, trip shaft 3 support 7 that is fixed retrains, during short circuit, motor magnet can not make trip shaft move to the effect of trip shaft 3 wink, so just provides two kinds of operating states to circuit breaker: one is normal operating conditions: namely have the performance that Pyromagnetic release is same; Another kind is locking operating state: now circuit breaker is operated in extreme emergency rating, all can not thread off, but send alarm signal when overload and short circuit.
Can make the constraint release of trip shaft 3 and fixed support 7 by removal hold-down screw 9 according to need of work, during short circuit, motor magnet will make trip shaft 3 rotate to the effect of trip shaft 3 wink, now send alarm signal during overload, but circuit breaker does not perform order of threading off; And still can thread off during short circuit.
During work, when sensitive switch 8 and fixed support 7 are in the position (i.e. fixed support 7 and sensitive switch 8 with trip shaft 3 toggle it to right positions) of Fig. 3, now lever 4 will not exist with the relativeness of sensitive switch 8, the motion of lever 4 directly will promote trip shaft 3 and rotate, and namely be in normal operating conditions.
Above-mentioned circuit breaker overload-alarm non-tripping device can realize circuit breaker and descends the load off-rating once working line in working order and reach required setting, and namely circuit breaker sends electric alarm signal by the action of sensitive switch 8.Specifically, when by the load off-rating of circuit breaker and when reaching the setting of requirement of system design, the flecition of bimetal leaf 5 is adjusted in be fixed on lever 4 adjustable screw 6 and make lever 4 movement progress sensitive switch 8, the change over contact of sensitive switch 8 sends electric signal immediately, the distance of the application point of lever 4 pairs of sensitive switches 8 and bimetal leaf 5 occur instantaneously to the time interval sending alarm signal owing to can determine to transship to the adjustable distance sum of adjusting between screw 6 be fixed on lever 4 under steady state conditions, a reactor, so the time interval can make it to reach the stipulated time value of requirement of system design by regulating screw 6 of adjusting.
Claims (2)
1. a circuit breaker overload-alarm non-tripping device, it trip shaft comprising release pedestal and be installed on release pedestal, described trip shaft connects tripping mechanism, it is characterized in that: described release pedestal is also provided with several bimetal leafs, coordinate bimetal leaf, on release pedestal, rotating lever is installed, on described lever, corresponding bimetal leaf is provided with to adjust and requires the screw of adjusting of warning overload current value, the corresponding lever in one end of described trip shaft is provided with fixed support, described fixed support is fixed with sensitive switch, described sensitive switch and alarm communicate to connect, the both sides of described release pedestal are all provided with a lever mounting panel, described lever mounting panel offers through hole, the two ends of described lever are arranged at can being installed on lever mounting panel around the rotation of lever mounting panel by lever in through hole.
2. circuit breaker overload-alarm non-tripping device according to claim 1, be is characterized in that: described fixed support offers fixing hole, is fixed in trip shaft by fixed support by hold-down screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110226634.5A CN102299028B (en) | 2011-08-09 | 2011-08-09 | A kind of circuit breaker overload-alarm non-tripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110226634.5A CN102299028B (en) | 2011-08-09 | 2011-08-09 | A kind of circuit breaker overload-alarm non-tripping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102299028A CN102299028A (en) | 2011-12-28 |
| CN102299028B true CN102299028B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110226634.5A Active CN102299028B (en) | 2011-08-09 | 2011-08-09 | A kind of circuit breaker overload-alarm non-tripping device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832081B (en) * | 2012-08-31 | 2014-10-01 | 浙江中凯科技股份有限公司 | Transmission mechanism in tripper |
| CN103606493A (en) * | 2013-12-02 | 2014-02-26 | 南京工程学院 | Thermomagnetic release with thermal compensation function |
| CN108257826B (en) * | 2018-02-05 | 2020-02-18 | 德力西电气有限公司 | Moulded case circuit breaker with overload alarming function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201327800Y (en) * | 2009-03-31 | 2009-10-14 | 上海电科博耳电器开关有限公司 | Alarm non-tripping device |
| CN102110556A (en) * | 2011-02-25 | 2011-06-29 | 贵州长征开关制造有限公司 | Overload setting value-adjustable circuit breaker |
| CN202183343U (en) * | 2011-08-09 | 2012-04-04 | 无锡新宏泰电器科技股份有限公司 | Device capable of avoiding tripping during overload alarm of breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006228655A (en) * | 2005-02-21 | 2006-08-31 | Nitto Electric Works Ltd | Circuit breaker for wiring |
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2011
- 2011-08-09 CN CN201110226634.5A patent/CN102299028B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201327800Y (en) * | 2009-03-31 | 2009-10-14 | 上海电科博耳电器开关有限公司 | Alarm non-tripping device |
| CN102110556A (en) * | 2011-02-25 | 2011-06-29 | 贵州长征开关制造有限公司 | Overload setting value-adjustable circuit breaker |
| CN202183343U (en) * | 2011-08-09 | 2012-04-04 | 无锡新宏泰电器科技股份有限公司 | Device capable of avoiding tripping during overload alarm of breaker |
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| CN102299028A (en) | 2011-12-28 |
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