CN204230175U - There is the breaker of plastic casing of a thermal overload alarm non-tripping function - Google Patents
There is the breaker of plastic casing of a thermal overload alarm non-tripping function Download PDFInfo
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- CN204230175U CN204230175U CN201420698805.3U CN201420698805U CN204230175U CN 204230175 U CN204230175 U CN 204230175U CN 201420698805 U CN201420698805 U CN 201420698805U CN 204230175 U CN204230175 U CN 204230175U
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- frizzen
- breaker
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- feeler
- thermal element
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Abstract
The utility model relates to a kind of breaker of plastic casing with a thermal overload alarm non-tripping function, it comprises pedestal, middle cover, be arranged on the thermal element in pedestal, the bimetal piece be connected with thermal element, be arranged on the adjustment screw on bimetal piece top, the frizzen covered in being arranged on and sensitive switch, described middle cover is arranged on the top of pedestal, in cover be provided with assembling frizzen groove, frizzen is contained in groove, frizzen two ends are provided with columnar shaft, columnar shaft and cell wall are rotatably assorted, the side end sleeve of frizzen has torsion spring, frizzen is provided with limiting section, one pin of torsion spring withstands on limiting section, cover during another pin of torsion spring withstands on, frizzen is also provided with feeler, the slotted eye covered during feeler passes extends to the below of middle cover, after bimetal piece heated bending, adjustment screw promotes feeler and triggers sensitive switch, sensitive switch and alarm communicate to connect.The breaker of plastic casing structure with a thermal overload alarm non-tripping function of the present utility model is simple, easy to assembly, solves the problem of existing overload-alarm non-tripping circuit breaker false alarm.
Description
Technical field
The utility model relates to electric switch accessory field, particularly a kind of breaker of plastic casing with a thermal overload alarm non-tripping function.
Background technology
In fire-fighting, medical treatment, some special occasions of chemical field, can not stop power supply, therefore, when there is thermal overload, usual alarm non-tripping, an existing thermal overload alarm non-tripping circuit breaker arranges thermal element on pedestal, thermal element connects bimetal leaf, lever mounting panel is provided with in the both sides of pedestal, lever is provided with between lever mounting panel, lever can rotate relative to lever mounting panel, lever is provided with screw of adjusting, to be adjusted by screw of adjusting the overload current value of circuit breaker, pedestal is also provided with trip shaft, trip shaft is provided with fixed support, fixed support is provided with sensitive switch, when there is thermal overload, thermal element generates heat, by heat conduction to bimetal leaf, bimetal leaf deforms, effect and the screw of adjusting on lever, promote lever rotation, lever pushing sensitive switch sends alarm signal, trip shaft and fixed support are bolted to connection, trip shaft cannot be threaded off.The shortcoming of existing overload-alarm non-tripping circuit breaker is that number of components is many, have employed the signals collecting parts such as two pieces of lever mounting panels, lever, screw of adjusting, trip shaft, fixed support, sensitive switch, these parts are all arranged on pedestal, assemble loaded down with trivial details, higher to the requirement of assembling, especially the center of gravity of lever will be found accurately, guarantee lever does not deflect, cause false alarm, if during assembling, when circuit breaker setting angle goes wrong, lever is easy to touch sensitive switch, causes false alarm.After overload problem solves, lever relies on gravity reduction, and sensitivity is low, also easily makes a mistake.
Summary of the invention
The purpose of this utility model is, for the not de-mouth circuit breaker Problems existing of existing overload-alarm pointed in background technology, to provide a kind of a kind of breaker of plastic casing with a thermal overload alarm non-tripping function that can solve foregoing problems.
The technical scheme realizing goal of the invention of the present utility model is as follows:
A kind of breaker of plastic casing with a thermal overload alarm non-tripping function, it comprises pedestal, middle cover, be arranged on the thermal element in pedestal, the bimetal piece be connected with thermal element, be arranged on the adjustment screw on bimetal piece top, the frizzen covered in being arranged on and sensitive switch, described middle cover is arranged on the top of pedestal, in cover be provided with assembling frizzen groove, frizzen is contained in groove, frizzen two ends are provided with columnar shaft, columnar shaft and cell wall are rotatably assorted, the side end sleeve of frizzen has torsion spring, frizzen is provided with limiting section, one pin of torsion spring withstands on limiting section, cover during another pin of torsion spring withstands on, frizzen is also provided with feeler, the slotted eye covered during feeler passes extends to the below of middle cover, after bimetal piece heated bending, adjustment screw promotes feeler and triggers sensitive switch, sensitive switch and alarm communicate to connect.
Described pedestal is provided with multiple thermal element mounting groove, in each thermal element mounting groove, one group of thermal element is installed, each thermal element is connected to bimetal piece, the upper end of each bimetal piece is connected with adjustment screw, and corresponding frizzen is provided with the feeler corresponding with each adjustment screw.
Spacing in order to what strengthen frizzen, cover in described and be provided with upper cover, above cover and be provided with the limiting section spacing to frizzen.
The advantage with the breaker of plastic casing of a thermal overload alarm non-tripping function of the present utility model is: the parts of use are few, assemble simple and convenient, circuit breaker internal designs simplification, reduce production cost, adopt torsion spring to control frizzen to reset, avoid frizzen gravitate generation swing and cause false alarm, improve the overall mass of circuit breaker.
Accompanying drawing explanation
Fig. 1 is a kind of broken away view with the breaker of plastic casing of a thermal overload alarm non-tripping function of the present utility model;
Fig. 2 be of the present utility model a kind of have the breaker of plastic casing of a thermal overload alarm non-tripping function installation diagram;
In figure, 1 is pedestal, and 2 is middle cover, and 3 is thermal element, and 4 is bimetal piece, and 5 is adjustment screw, and 6 is frizzen, and 7 is sensitive switch, and 8 is groove, and 9 is torsion spring, and 10 is feeler, and 11 is limiting section, and 12 is upper cover.
Embodiment
See figures.1.and.2 shown a kind of breaker of plastic casing with a thermal overload alarm non-tripping function, it comprises pedestal 1, middle cover 2, be arranged on the thermal element 3 in pedestal 1, the bimetal piece 4 be connected with thermal element 3, be arranged on the adjustment screw 5 on bimetal piece 4 top, be arranged on the frizzen 6 on middle cover 2 and sensitive switch 7, described middle cover 2 is arranged on the top of pedestal 1, middle cover 2 is provided with the groove 8 of assembling frizzen 6, frizzen 6 is contained in groove 8, frizzen 6 two ends are provided with columnar shaft, columnar shaft and groove 8 wall are rotatably assorted, the side end sleeve of frizzen 6 has torsion spring 9, frizzen 6 is provided with limiting section 11, one pin of torsion spring 9 withstands on limiting section 11, another pin of torsion spring 9 withstands on middle cover 2, frizzen 6 is also provided with feeler 10, feeler 10 extends to the below of middle cover 2 through groove 8 hole on middle cover 2, after bimetal piece 4 heated bending, adjustment screw 5 promotes feeler 10 and triggers sensitive switch 7, sensitive switch 7 and alarm communicate to connect.
In such scheme, described pedestal 1 is provided with multiple thermal element 3 mounting groove, in each thermal element 3 mounting groove, one group of thermal element 3 is installed, each thermal element 3 is connected to bimetal piece 4, the upper end of each bimetal piece 4 is connected with adjustment screw 5, and corresponding frizzen 6 is provided with the feeler 10 corresponding with each adjustment screw 5.Under normal circumstances, circuit breaker is provided with three thermal element 3 mounting grooves.
Spacing in order to what strengthen frizzen 6, described middle cover 2 is provided with upper cover 12, upper cover 12 is provided with the limiting section 11 spacing to frizzen 6.
The breaker of plastic casing with a thermal overload alarm non-tripping function of the present utility model is provided with middle cover 2 on pedestal 1, middle cover 2 is provided with frizzen 6 and sensitive switch 7, frizzen 6 and middle cover 2 are rotatably assorted, torsion spring 9 is provided with in one end of frizzen 6, adjustment screw 5 is provided with on the top of bimetal leaf, when there is thermal overload, heat is passed to bimetal leaf by thermal element 3, bimetal leaf heated bending, adjustment screw 5 is caused to move towards feeler 10, the feeler 10 promoted below frizzen 6 moves, the feeler 10 of frizzen 6 end triggers the sensitive switch 7 being arranged on feeler 10 other and reports to the police.By improvement of the present utility model, can number of spare parts be reduced, simplify assembling, reduce production cost, meanwhile, by the applying reseting elasticity of torsion spring 9 pairs of frizzens 6, prevent frizzen 6 be subject to external factor interference and swing, cause circuit breaker false alarm, avoid the generation of false alarm.
Above embodiment is the explanation to embodiment of the present utility model; but not to restriction of the present utility model; person skilled in the relevant technique is not when departing from spirit and scope of the present utility model; can also make various conversion and change and obtain corresponding equivalent technical scheme, therefore all equivalent technical schemes all should be included into scope of patent protection of the present utility model.
Claims (3)
1. one kind has the breaker of plastic casing of a thermal overload alarm non-tripping function, it is characterized in that: it comprises pedestal, middle cover, be arranged on the thermal element in pedestal, the bimetal piece be connected with thermal element, be arranged on the adjustment screw on bimetal piece top, the frizzen covered in being arranged on and sensitive switch, described middle cover is arranged on the top of pedestal, in cover be provided with assembling frizzen groove, frizzen is contained in groove, frizzen two ends are provided with columnar shaft, columnar shaft and cell wall are rotatably assorted, the side end sleeve of frizzen has torsion spring, frizzen is provided with limiting section, one pin of torsion spring withstands on limiting section, cover during another pin of torsion spring withstands on, frizzen is also provided with feeler, the slotted eye covered during feeler passes extends to the below of middle cover, after bimetal piece heated bending, adjustment screw promotes feeler and triggers sensitive switch, sensitive switch and alarm communicate to connect.
2. a kind of breaker of plastic casing with a thermal overload alarm non-tripping function according to claim 1, it is characterized in that: described pedestal is provided with multiple thermal element mounting groove, in each thermal element mounting groove, one group of thermal element is installed, each thermal element is connected to bimetal piece, the upper end of each bimetal piece is connected with adjustment screw, and corresponding frizzen is provided with the feeler corresponding with each adjustment screw.
3. a kind of breaker of plastic casing with a thermal overload alarm non-tripping function according to claim 2, is characterized in that: cover in described and be provided with upper cover, above covers and is provided with the limiting section spacing to frizzen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698805.3U CN204230175U (en) | 2014-11-19 | 2014-11-19 | There is the breaker of plastic casing of a thermal overload alarm non-tripping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698805.3U CN204230175U (en) | 2014-11-19 | 2014-11-19 | There is the breaker of plastic casing of a thermal overload alarm non-tripping function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204230175U true CN204230175U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420698805.3U Active CN204230175U (en) | 2014-11-19 | 2014-11-19 | There is the breaker of plastic casing of a thermal overload alarm non-tripping function |
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| CN (1) | CN204230175U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869960A (en) * | 2016-06-02 | 2016-08-17 | 无锡新宏泰电器科技股份有限公司 | Overload signal output device of thermomagnetic molded case circuit breaker |
| CN106876220A (en) * | 2015-12-14 | 2017-06-20 | 浙江正泰电器股份有限公司 | The thermal overload alarm non-tripping device of breaker |
-
2014
- 2014-11-19 CN CN201420698805.3U patent/CN204230175U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106876220A (en) * | 2015-12-14 | 2017-06-20 | 浙江正泰电器股份有限公司 | The thermal overload alarm non-tripping device of breaker |
| CN106876220B (en) * | 2015-12-14 | 2020-02-18 | 浙江正泰电器股份有限公司 | Thermal overload alarm non-tripping device of circuit breaker |
| CN105869960A (en) * | 2016-06-02 | 2016-08-17 | 无锡新宏泰电器科技股份有限公司 | Overload signal output device of thermomagnetic molded case circuit breaker |
| CN105869960B (en) * | 2016-06-02 | 2018-11-23 | 无锡新宏泰电器科技股份有限公司 | A kind of Thermomagnetic type breaker of plastic casing overload signal output device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |