CN102110556B - Overload setting value-adjustable circuit breaker - Google Patents
Overload setting value-adjustable circuit breaker Download PDFInfo
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- CN102110556B CN102110556B CN 201110046359 CN201110046359A CN102110556B CN 102110556 B CN102110556 B CN 102110556B CN 201110046359 CN201110046359 CN 201110046359 CN 201110046359 A CN201110046359 A CN 201110046359A CN 102110556 B CN102110556 B CN 102110556B
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- circuit breaker
- setting value
- draw bar
- overload setting
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Abstract
The invention discloses an overload setting value-adjustable circuit breaker, which comprises a thermoelement (3), a bimetallic strip (4), a touch piece (5), a rotatable alarming draw bar (7) and an adjusting device (10), wherein the thermoelement (3) is used for emitting heat when a circuit is overloaded; the bimetallic strip (4) generates bending deflection when heated by the thermoelement (3); the touch piece (5) is arranged on the bimetallic strip (4); the alarming draw bar (7) is sleeved on a shaft (6); a trigger plate (8) which is a certain distance away from the touch piece (5) is arranged on the alarming draw bar (7); a signal collector (9) is arranged on the rotation path of the trigger plate (8); the surface, which is opposite to the touch piece (5), of the trigger plate (8) is an inclined surface; and the adjusting device (10) is used for driving the alarming draw bar (7) to move along the axial direction of the shaft (6) so as to change the distance between the touch piece (5) and the trigger plate (8). Compared with the prior art, the overload setting value-adjustable circuit breaker has a compact structure and high safety; and an overload setting value is convenient to adjust.
Description
Technical field
The present invention relates to the low voltage electrical apparatus technology field, more particularly, relate to the adjustable circuit breaker of a kind of overload setting value.
Background technology
The circuit breaker that existing overload setting value is adjustable is mainly realized the thermal overload warning function by the thermal element, bimetal leaf, touch part, warning draw bar, trigger board and the signal picker that are arranged on the pedestal.The overload setting value of circuit breaker depends on the distance between touch part and the trigger board, and distance is larger, and overload setting value is larger.In order to adjust this distance, the touch part on the existing circuit breaker is set to expansion screw, by the rotation expansion screw, can change the distance between expansion screw and the trigger board, thereby changes the overload setting value of main line.Because expansion screw is arranged on the base interior of circuit breaker, when adjusting overload setting value, the cover that must cut off the power supply and pull down circuit breaker could rotate expansion screw, uses inconvenience.
Summary of the invention
The technical problem to be solved in the present invention is, adjusts inconvenient defective for the circuit breaker overload setting value that existing overload setting value is adjustable, provides a kind of overload setting value adjustable circuit breaker.
The technical solution adopted for the present invention to solve the technical problems is: construct the adjustable circuit breaker of a kind of overload setting value, the thermal element that comprises heating when overload occurs circuit, heated by described thermal element and produce diastrophic bimetal leaf, be arranged on the touch part on the described bimetal leaf, be socketed in rotating warning draw bar on the axle, described warning draw bar is provided with the trigger board that keeps at a certain distance away with described touch part, the rotation path of described trigger board is provided with signal picker, the described trigger board face relative with described touch part is the inclined-plane, thereby described circuit breaker comprises that also the described warning draw bar of driving is along the adjusting device that changes the distance between touch part and the trigger board that moves axially of described axle.
In the adjustable circuit breaker of overload setting value of the present invention, described adjusting device comprises the poke rod that is plugged in the described warning draw bar and drives the knob that described poke rod rotates.
In the adjustable circuit breaker of overload setting value of the present invention, described warning draw bar is provided with stirs groove, and described poke rod is plugged on described stirring in the groove.
In the adjustable circuit breaker of overload setting value of the present invention, also comprise pedestal and cover, described thermal element, bimetal leaf and touch part are arranged in the described pedestal, described warning draw bar, signal picker and adjusting device are arranged in the described cover, described cover is provided with draw-in groove, and the two ends of the axle of described warning draw bar are connected with the fixed head that inserts in the described draw-in groove.
In the adjustable circuit breaker of overload setting value of the present invention, described knob passes described cover and is installed on the described cover, and is fixed on the cover by gripping mechanism, and described knob is provided with notch.
In the adjustable circuit breaker of overload setting value of the present invention, described gripping mechanism is any one in jump ring, split washer, the clip.
In the adjustable circuit breaker of overload setting value of the present invention, be set with torsion spring on the described axle, a pair of torsion spring pin of described torsion spring is kept out respectively on described cover and described warning draw bar.
In the adjustable circuit breaker of overload setting value of the present invention, described touch part is expansion screw.
In the adjustable circuit breaker of overload setting value of the present invention, described signal picker is any one in sensitive switch, travel switch, the approach switch.
In the adjustable circuit breaker of overload setting value of the present invention, described signal picker is connected with warning device.
Implement the adjustable circuit breaker of overload setting value of the present invention, has following beneficial effect: by adjusting device is set the warning draw bar is moved axially, because the trigger board face relative with touch part is the inclined-plane, therefore can change the distance between trigger board and the touch part, thereby change overload setting value.Adjust in this way the touch part that overload setting value need not to adjust circuit breaker inside, more convenient.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the structural representation of the adjustable circuit breaker of overload setting value of the present invention;
Fig. 2 is the structural representation of cover among Fig. 1;
Fig. 3 is the part exploded perspective view of cover among Fig. 1;
Fig. 4 is the structural representation of adjusting device among Fig. 1.
Embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
See also accompanying drawing, the circuit breaker that overload setting value is adjustable comprises pedestal 1 and cover 2.Be provided with thermal element 3, bimetal leaf 4 and touch part 5 in the pedestal 1.Be provided with warning draw bar 7, signal picker 9 and adjusting device 10 in the cover 2.
Distance relation in direct ratio between the size of the overload setting value of the circuit breaker that overload setting value is adjustable and touch part 5 and the trigger board 8, distance is larger between touch part 5 and the trigger board 8, and overload setting value is larger.Touch part 5 is expansion screw, and the rotation expansion screw can change the distance between touch part 5 and the trigger board 8.Trigger board 8 in the present embodiment and touch part 5 all are provided with three, and each trigger board 8 corresponding touch part 5 is difficult to when regulating guarantee that the distance between three pairs of trigger board 8 and the touch part 5 keeps equating.And adjust screw and be arranged on circuit breaker inside, regulate inconvenience.Given this, the present invention also provides a kind of adjusting device 10 to adjust distance between touch part 5 and the trigger board 8, and this adjusting device 10 comprises poke rod 101 and knob 102.Warning draw bar 7 be provided with cooperate with poke rod 101 stir groove 701, poke rod 101 is plugged on to be stirred in the groove 701.Knob 102 rotates and can drive poke rod 101 and rotate, 101 of poke rods otherwise be on the center of rotation of knob 102, and the draw bar 7 that just can promote to report to the police moves axially.In the present embodiment on the trigger board 8 face relative with touch part 5 be the inclined-plane, therefore when warning draw bar 7 moves axially, the distance between trigger board 8 and the touch part 5 changes, thus the change overload setting value.Knob 102 passes cover 2 and is installed on the cover 2 by gripping mechanism 104, and gripping mechanism 104 can be jump ring, split washer, clip etc.Knob 102 is provided with notch 103, and the notch 103 in the present embodiment is in-line, but it can also be cross or other shape.Screwdriver or other instrument by the external world insert in the notch 103 and can rotate by drive knob 102, finish the adjusting of setting value.Knob 102 is arranged on the cover 2, and is easy to adjust, need not to take apart circuit breaker.
In sum, the present invention is arranged on warning draw bar and adjusting device on the cover, makes breaker structure compact, and reliability is high.Simultaneously the present invention can adjust overload setting value by the knob on the cover, and is convenient and swift, need not to cut off the power supply or take circuit breaker apart and can finish adjustment process, safe.
The above is described embodiments of the invention by reference to the accompanying drawings; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.
Claims (8)
1. circuit breaker that overload setting value is adjustable, the thermal element (3) that comprises heating when overload occurs circuit, produced diastrophic bimetal leaf (4) by described thermal element (3) heating, be arranged on the touch part (5) on the described bimetal leaf (4), be socketed in the upper rotating warning draw bar (7) of axle (6), described warning draw bar (7) is provided with the trigger board (8) that keeps at a certain distance away with described touch part (5), the rotation path of described trigger board (8) is provided with signal picker (9), it is characterized in that, described trigger board (8) face relative with described touch part (5) is the inclined-plane, described circuit breaker also comprise drive described warning draw bar (7) along described axle (6) thus move axially the adjusting device (10) that changes the distance between touch part (5) and the trigger board (8), described adjusting device (10) comprises the poke rod (101) that is plugged in the described warning draw bar (7) and drives the knob (102) that described poke rod (101) rotates, described circuit breaker also comprises pedestal (1) and cover (2), described thermal element (3), bimetal leaf (4) and touch part (5) are arranged in the described pedestal (1), described warning draw bar (7), signal picker (9) and adjusting device (10) are arranged in the described cover (2), described cover (2) is provided with draw-in groove (13), the two ends of the axle (6) of described warning draw bar (7) are connected with the fixed head (12) that inserts in the described draw-in groove (13), and described knob (102) passes described cover (2) and is installed on the described cover (2).
2. the adjustable circuit breaker of overload setting value according to claim 1 is characterized in that, described warning draw bar (7) is provided with stirs groove (701), and described poke rod (101) is plugged on described stirring in the groove (701).
3. the adjustable circuit breaker of overload setting value according to claim 1 is characterized in that, described knob (102) is fixed on the cover (2) by gripping mechanism (104), and described knob (102) is provided with notch (103).
4. the adjustable circuit breaker of overload setting value according to claim 3 is characterized in that, described gripping mechanism (104) is any one in jump ring, split washer, the clip.
5. the adjustable circuit breaker of overload setting value according to claim 3 is characterized in that, is set with torsion spring (11) on the described axle (6), and a pair of torsion spring pin of described torsion spring (11) is kept out respectively on described cover (2) and described warning draw bar (7).
6. the adjustable circuit breaker of the described overload setting value of any one is characterized in that according to claim 1-4, and described touch part (5) is expansion screw.
7. the adjustable circuit breaker of the described overload setting value of any one is characterized in that according to claim 1-4, and described signal picker (9) is any one in sensitive switch, travel switch, the approach switch.
8. the adjustable circuit breaker of the described overload setting value of any one is characterized in that according to claim 1-4, and described signal picker (9) is connected with warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110046359 CN102110556B (en) | 2011-02-25 | 2011-02-25 | Overload setting value-adjustable circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110046359 CN102110556B (en) | 2011-02-25 | 2011-02-25 | Overload setting value-adjustable circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102110556A CN102110556A (en) | 2011-06-29 |
| CN102110556B true CN102110556B (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110046359 Active CN102110556B (en) | 2011-02-25 | 2011-02-25 | Overload setting value-adjustable circuit breaker |
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| CN (1) | CN102110556B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299028B (en) * | 2011-08-09 | 2016-04-27 | 无锡新宏泰电器科技股份有限公司 | A kind of circuit breaker overload-alarm non-tripping device |
| CN102592901A (en) * | 2012-02-24 | 2012-07-18 | 太仓康茂电子有限公司 | High-reliability adjustable current circuit breaker |
| CN102810436B (en) * | 2012-08-21 | 2015-03-25 | 德力西电气有限公司 | Delay-adjustable breaker |
| CN104465247B (en) * | 2014-12-30 | 2016-05-11 | 上海电科电器科技有限公司 | The hot type adjustable tripping device of miniature circuit breaker |
| CN109243929A (en) * | 2018-10-30 | 2019-01-18 | 德力西电气有限公司 | A kind of breaker of plastic casing with adjustable type overload-alarm non-tripping function |
| CN111276329B (en) * | 2020-02-13 | 2021-09-21 | 赣州精鑫电力有限公司 | Automatic heat dissipation device for capacitor and use method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4698606A (en) * | 1986-06-20 | 1987-10-06 | Westinghouse Electric Corp. | Circuit breaker with adjustable thermal trip unit |
| CN100421201C (en) * | 2006-03-06 | 2008-09-24 | 浙江正泰电器股份有限公司 | Split thermomagnetic adjustable release device for circuit breaker |
| CN200983347Y (en) * | 2006-11-30 | 2007-11-28 | Tcl低压电器(无锡)有限公司 | Adjustable thermal magnetic buckler structure |
| CN201392791Y (en) * | 2009-03-12 | 2010-01-27 | 浙江嘉凯电气有限公司 | Molded case circuit breaker |
| CN202058658U (en) * | 2011-02-25 | 2011-11-30 | 贵州长征开关制造有限公司 | Breaker for outputting trouble signal |
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2011
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| CN102110556A (en) | 2011-06-29 |
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Address after: The middle section of Wuhan road Huichuan District Waigaoqiao Industrial Park 563002 Guizhou city of Zunyi Province Patentee after: SHENZHEN TAIYONG ELECTRIC Co.,Ltd. Address before: The middle section of Wuhan road Huichuan District Waigaoqiao Industrial Park 563002 Guizhou city of Zunyi Province Patentee before: Guizhou Taiyong long Technology Co.,Ltd. |
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Address after: The middle section of Wuhan road Huichuan District Waigaoqiao Industrial Park 563002 Guizhou city of Zunyi Province Patentee after: Guizhou Taiyong long Technology Co.,Ltd. Address before: 563002 No. 147, Shanghai Road, Zunyi, Guizhou Patentee before: GUIZHOU CHANGZHENG SWITCH MFG CO.,LTD. |