CN101976640A - Low-voltage breaker tripper - Google Patents
Low-voltage breaker tripper Download PDFInfo
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- CN101976640A CN101976640A CN2010102873911A CN201010287391A CN101976640A CN 101976640 A CN101976640 A CN 101976640A CN 2010102873911 A CN2010102873911 A CN 2010102873911A CN 201010287391 A CN201010287391 A CN 201010287391A CN 101976640 A CN101976640 A CN 101976640A
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- armature
- heating element
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- yoke
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Abstract
The invention relates to a triggering part of a tripping protection system of a low-voltage breaker, in particular to a low-voltage breaker tripper, belonging to low-voltage power transmission and distribution equipment. The low-voltage breaker tripper comprises a pair of conductor wiring terminals, i.e. a first wiring terminal and a second wiring terminal. The first wiring terminal and the second wiring terminal are respectively connected with a heating element and a double plate which is used as a magnetic field generating element; the heating element and the double plate are both arranged on a plastic support; the heating element is connected with the lower end of a bimetallic strip; the upper end of the bimetallic strip is connected with the double plate through flexible connection; and the double plate is provided with two elongated slots; the low-voltage breaker tripper also comprises a magnet yoke with two arms; the two arms of the magnet yoke pass through the two elongated slots on the double plate; a sheet armature which can be picked up by the magnet yoke is arranged in front of the two arms of the magnet yoke; and the armature can swing around the jointed shaft of the root of the armature. The invention has compact structure and high operating reliability, is convenient to manufacture and install and is easy to adjust in operating parameters.
Description
Technical field
The invention belongs to the low pressure equipment for power transmission and distribution, relate to a kind of trigger unit of dropout protection system of low-voltage circuit breaker, specifically is a kind of low-voltage circuit breaker release.
Background technology
The thermo magnetic trip release device is used comparatively extensive in low-voltage circuit breaker, requires it to have two kinds of defencive functions usually, i.e. instantaneous short-circuit protection and time-delay overload protection.But, shell support body little because of load current is long-pending little etc., and particularity has been brought very big difficulty to design.Generally adopt solenoid to increase magnetic field at present, satisfy the characteristic of instantaneous trip; Improve caloric value with high-resistance alloy material, to adapt to delayed releasing.Its major defect is: under big short circuit current condition, solenoid is blown easily.Simultaneously because of the restriction of installing space, coil often and other parts of release interfere, cause release not move flexibly.
Publication number is that the Chinese patent of CN1337054A discloses a kind of " clapper armature system of line-breaker " that triggers breaker tripping mechanism.Its utilization can realize the time-delay overlond trip with combining of temperature-sensitive plate by the heating element of electric current, and by the cooperate solenoid that replace in traditional structure of the groove on the heating element with yoke, play the effect that increases magnetic field, reduced number of spare parts simultaneously, saved the release space.But still there is defective in this structure: 1, because the back-shaped groove that cooperates with yoke directly is set on heating element, in fact bear heating heating element the time and produced these two kinds of functions of required magnetic field, its heating parameter and magnetic field parameter all will satisfy the requirement of each self-corresponding mechanism, bring very big difficulty for its structural design and installation adjustment, be difficult to the best is arrived in parameter adjustment during reality is made and installed, thereby reduced operational reliability; 2, its action component structure is still complicated, and manufacturing and installation difficulty are big, have improved cost, have reduced reliability.
Summary of the invention
Technical problem to be solved by this invention is, the low-voltage circuit breaker release that provide a kind of compact conformation, manufacturing and easy for installation, operational factor to be easy to adjust, operational reliability is high.
Low-voltage circuit breaker release of the present invention includes the pair of conductors terminals, i.e. first terminals and second terminals, first terminals are connected a heating element and the back-shaped plate as the magnetic field generating device respectively with second terminals, heating element and back-shaped plate are installed on the plastic stent, heating element is connected with the lower end of a bimetal leaf, the upper end of bimetal leaf is connected with back-shaped plate by being flexible coupling, and back-shaped plate is provided with two elongated slots; Yoke with two arms is arranged, and two arms of yoke pass two elongated slots on the above-mentioned back-shaped plate; Two arm the place aheads of yoke are provided with one can be by the armature of the sheet of yoke adhesive, and armature can be around the jointed shaft swing of its root.
Described heating element is the plate that is snakelike.
Described armature root both sides are provided with the projection of a pair of horizontal direction, have a pair of side plate of holding up simultaneously on above-mentioned plastic stent, and a pair of axis hole is set on the side plate, and the projection on the above-mentioned armature snaps onto and forms jointed shaft in the axis hole.
Advantage of the present invention is:
1, time template of belt length groove has replaced the solenoid of traditional structure, but cold punching machine-shaping, and Stability Analysis of Structures is reliable, simple, and has saved installing space, can also bear big electric current;
2, snakelike heating element has strengthened the length of conductor, thereby increases heating resistor, simultaneously compact conformation;
3, plastic stent well is assembled together all parts of release, and has simplified the structure of metal parts; Wherein the jointed shaft of armature can utilize the strain of plastics to be installed in the axis hole, and armature can be reduced to dull and stereotyped cold-worked part like this, thereby has reduced processing cost.
Description of drawings
Fig. 1 is a perspective view of the present invention;
Fig. 2 is a side structure schematic diagram of the present invention;
Fig. 3 is the three-dimensional decomposition texture schematic diagram of yoke of the present invention when pulling down;
Fig. 4 is the side decomposition texture schematic diagram of yoke of the present invention when pulling down;
Fig. 5 is the perspective view that shows heating element, back-shaped plate and bimetal leaf relative position relation;
Fig. 6 is the side structure schematic diagram that shows heating element, back-shaped plate and bimetal leaf relative position relation.
Embodiment
As shown in the figure, this low-voltage circuit breaker release includes the pair of conductors terminals, i.e. first terminals 1 and second terminals 2, first terminals are connected a snakelike heating element 3 and the back-shaped plate 4 as the magnetic field generating device respectively with second terminals, heating element 3 and back-shaped plate 4 are installed on the plastic stent 5, heating element is connected with the lower end of a bimetal leaf 6, and the upper end of bimetal leaf 7 is connected with back-shaped plate 4 by being flexible coupling, and back-shaped plate is provided with two elongated slots 8; Yoke 10 with two arms 9 is arranged, and two arms 9 of yoke pass two elongated slots 8 on the back-shaped plate; Arm 9 the place aheads of yoke are provided with one can be by the armature 11 of the sheet of yoke adhesive, and armature can be around jointed shaft 12 swings of its root.Concrete structure is the projection 13 that is provided with a pair of horizontal direction in armature 11 root both sides, has a pair of side plate of holding up 14 simultaneously on above-mentioned plastic stent 5, and a pair of axis hole 15 is set on the side plate, and the projection 13 on the armature 11 snaps onto in the axis hole 15 and forms jointed shaft.
Electric current passes through successively in the course of work: first terminals 1, snakelike heater element 3, be flexible coupling 7, back-shaped plate 4 to second terminals.When short circuit current flows through, the instantaneous adhesive armature of yoke, the tripping mechanism by armature triggering circuit breaker makes breaker open operation; When the time-delay overload current flow through, the heater element heating made bi-metal plate deformed trigger tripping mechanism.
Claims (3)
1. low-voltage circuit breaker release, include the pair of conductors terminals, i.e. first terminals (1) and second terminals (2), it is characterized in that: first terminals are connected a heating element (3) and the back-shaped plate (4) as the magnetic field generating device respectively with second terminals, heating element (3) and back-shaped plate 4 are installed on the plastic stent (5), heating element is connected with the lower end of a bimetal leaf (6), the upper end of bimetal leaf is connected with back-shaped plate (4) by be flexible coupling (7), and back-shaped plate is provided with two elongated slots (8); Yoke (10) with two arms (9) is arranged, and two arms (9) of yoke pass two elongated slots (8) on the back-shaped plate; The arm of yoke (9) the place ahead is provided with one can be by the armature of the sheet of yoke adhesive (11), and armature can be around jointed shaft (12) swing of its root.
2. low-voltage circuit breaker release according to claim 1 is characterized in that: described heating element (3) is for being snakelike plate.
3. low-voltage circuit breaker release according to claim 1 and 2, it is characterized in that: the projection (13) that is provided with a pair of horizontal direction in armature (11) root both sides, on plastic stent (5), has simultaneously a pair of side plate of holding up (14), a pair of axis hole (15) is set on the side plate, and the projection (13) on the armature (11) snaps onto and forms jointed shaft in the axis hole (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102873911A CN101976640B (en) | 2010-09-20 | 2010-09-20 | Low-voltage breaker tripper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102873911A CN101976640B (en) | 2010-09-20 | 2010-09-20 | Low-voltage breaker tripper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101976640A true CN101976640A (en) | 2011-02-16 |
| CN101976640B CN101976640B (en) | 2012-11-21 |
Family
ID=43576511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102873911A Active CN101976640B (en) | 2010-09-20 | 2010-09-20 | Low-voltage breaker tripper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101976640B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441046A (en) * | 2013-08-13 | 2013-12-11 | 常熟开关制造有限公司(原常熟开关厂） | Magnetic releaser of breaker |
| CN104137214A (en) * | 2012-02-23 | 2014-11-05 | 西门子公司 | Circuit breaker heater-bimetal assembly, heater-bimetal apparatus, and assembly methods thereof |
| CN104517787A (en) * | 2013-09-30 | 2015-04-15 | Ls产电株式会社 | Breaker with magnet fixing device |
| CN105448613A (en) * | 2014-08-15 | 2016-03-30 | 施耐德电气工业公司 | Release used for breaker |
| EP2930735A4 (en) * | 2012-12-28 | 2016-07-13 | Schneider Electric Ind Sas | Overload protection device, and thermomagnetic adjustable release for breaker comprising same |
| CN107749384A (en) * | 2017-11-01 | 2018-03-02 | 常熟瑞特电气股份有限公司 | A kind of double yoke Thermomagnetic type releases |
| CN111769013A (en) * | 2020-06-06 | 2020-10-13 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Large-range adjustable short circuit electromagnetic tripping device for plastic shell |
| CN114613648A (en) * | 2022-03-22 | 2022-06-10 | 浙江泰嘉和电器有限公司 | Conductive system on circuit breaker |
Citations (6)
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| DE946826C (en) * | 1953-12-08 | 1956-08-09 | Voigt & Haeffner Ag | Bimetal overcurrent release with quick short-circuit release |
| US3217125A (en) * | 1961-06-07 | 1965-11-09 | Wood Electric Corp | Circuit breaker having a cam means for very rapid opening of the contacts |
| FR2559946A1 (en) * | 1984-02-20 | 1985-08-23 | Merlin Gerin | Thermal trip with indirectly heated bimetallic strip. |
| DE4202122C2 (en) * | 1992-01-27 | 1994-08-25 | Kloeckner Moeller Gmbh | Tripping device for switching devices |
| CN101004987A (en) * | 2006-12-15 | 2007-07-25 | 大全集团有限公司 | Break tripping device |
| CN201838530U (en) * | 2010-09-20 | 2011-05-18 | 江苏大全凯帆电器股份有限公司 | Tripping device of low-voltage circuit breaker |
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2010
- 2010-09-20 CN CN2010102873911A patent/CN101976640B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE946826C (en) * | 1953-12-08 | 1956-08-09 | Voigt & Haeffner Ag | Bimetal overcurrent release with quick short-circuit release |
| US3217125A (en) * | 1961-06-07 | 1965-11-09 | Wood Electric Corp | Circuit breaker having a cam means for very rapid opening of the contacts |
| FR2559946A1 (en) * | 1984-02-20 | 1985-08-23 | Merlin Gerin | Thermal trip with indirectly heated bimetallic strip. |
| DE4202122C2 (en) * | 1992-01-27 | 1994-08-25 | Kloeckner Moeller Gmbh | Tripping device for switching devices |
| CN101004987A (en) * | 2006-12-15 | 2007-07-25 | 大全集团有限公司 | Break tripping device |
| CN201838530U (en) * | 2010-09-20 | 2011-05-18 | 江苏大全凯帆电器股份有限公司 | Tripping device of low-voltage circuit breaker |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104137214A (en) * | 2012-02-23 | 2014-11-05 | 西门子公司 | Circuit breaker heater-bimetal assembly, heater-bimetal apparatus, and assembly methods thereof |
| CN104137214B (en) * | 2012-02-23 | 2016-07-06 | 西门子公司 | Chopper heater bi-metallic element, heater bi-metal and assemble method |
| US10074502B2 (en) | 2012-12-28 | 2018-09-11 | Schneider Electric Industries Sas | Overload protection device and thermal magnetic adjustable trip unit for a breaker comprising the same |
| EP2930735A4 (en) * | 2012-12-28 | 2016-07-13 | Schneider Electric Ind Sas | Overload protection device, and thermomagnetic adjustable release for breaker comprising same |
| CN103441046A (en) * | 2013-08-13 | 2013-12-11 | 常熟开关制造有限公司(原常熟开关厂） | Magnetic releaser of breaker |
| CN104517787A (en) * | 2013-09-30 | 2015-04-15 | Ls产电株式会社 | Breaker with magnet fixing device |
| CN104517787B (en) * | 2013-09-30 | 2017-01-11 | Ls产电株式会社 | Breaker with magnet fixing device |
| CN105448613A (en) * | 2014-08-15 | 2016-03-30 | 施耐德电气工业公司 | Release used for breaker |
| CN105448613B (en) * | 2014-08-15 | 2019-05-07 | 施耐德电气工业公司 | Buckle releaser for breaker |
| CN107749384A (en) * | 2017-11-01 | 2018-03-02 | 常熟瑞特电气股份有限公司 | A kind of double yoke Thermomagnetic type releases |
| CN107749384B (en) * | 2017-11-01 | 2020-03-17 | 常熟瑞特电气股份有限公司 | Double-yoke thermomagnetic release |
| CN111769013A (en) * | 2020-06-06 | 2020-10-13 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Large-range adjustable short circuit electromagnetic tripping device for plastic shell |
| CN111769013B (en) * | 2020-06-06 | 2022-04-19 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Large-range adjustable short circuit electromagnetic tripping device for plastic shell |
| CN114613648A (en) * | 2022-03-22 | 2022-06-10 | 浙江泰嘉和电器有限公司 | Conductive system on circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101976640B (en) | 2012-11-21 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160711 Address after: Xinba Daquan 212211 Yangzhong Road, Zhenjiang City, Jiangsu province 66 Patentee after: Jiangsu Daquan Kai Kai switch Co., Ltd. Address before: 212200 Jiangsu city of Zhenjiang province Yangzhong City Development Zone, Jiangsu Yihe road Daquan Kaifan electrical Limited by Share Ltd Patentee before: Jiangsu Daqo Kfine Electric Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: No.66 Daquan Road, Xinba Town, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Daquan Kaifan switch Co.,Ltd. Address before: No.66 Daquan Road, Xinba Town, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee before: Jiangsu Daquan Kaifan Switch Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |