CN100464387C - Break tripping device - Google Patents
Break tripping device Download PDFInfo
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- CN100464387C CN100464387C CNB2006101612246A CN200610161224A CN100464387C CN 100464387 C CN100464387 C CN 100464387C CN B2006101612246 A CNB2006101612246 A CN B2006101612246A CN 200610161224 A CN200610161224 A CN 200610161224A CN 100464387 C CN100464387 C CN 100464387C
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- bimetal leaf
- free end
- tripping device
- actuator
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Abstract
The trip is mainly composed of part for triggering action in the actuating mechanism, and the tripping mechanism. One end of the heating unit in the tripping mechanism is as the end for inputting current; and the other end is connected to the fixed end of the bimetallic strip electrically. The free end of the bimetallic strip is near to the drawbar. U type magnetic yoke is installed near to the heating unit. Hinged one end of armature is installed related to the extension arm of the U type magnetic yoke. The free end of the armature is near to the drawbar. Winding is enwound on at least one extension arm of the magnetic yoke; When short circuit current passes through the winding, the magnetic yoke generates magnetic field intensity direct proportional to number of turns of winding. Thus, even if small current passes through the winding, magnetic field enough to attract armature can be generated. Improving structure simply, the invention overcomes problem existed in current technique.
Description
Technical field
The present invention relates to a kind of break tripping device, especially a kind of architecture advances of break tripping device belongs to supply of electric power control device technical field.
Background technology
The effect of circuit-breaker is that long-time overcurrent is provided delay protection and provides protection to the instantaneous large-current that is caused by short circuit.Its protective effect realizes by a heat-magnetic tripping mechanism that usually therefore comprising a thermal tripping part and a magnetic tripping operation part, typical structure as shown in Figure 1.
Thermal tripping part 10 in this tripping mechanism comprises a heater element 12 and a bimetal leaf 13, and bimetal leaf one end 16 is connected with thermal element.Bimetal leaf 13 is made of two kinds of different coefficient of expansion sheet metals, presses close to the part of thermal element 12 and substantially parallel.When producing overcurrent, the thermal element heating raises the temperature of bimetal leaf.When the temperature of bimetal leaf surpassed predetermined value, its free end 17 produced deviation, ordered about the trigger end action of actuator, and the contact is opened, and cut off electric current, and overcurrent is avoided in the protection load.
The magnetic tripping operation part 11 of this tripping mechanism comprises an armature 14, and its end 18 is hinged on fixing support, and 19 of its free ends can promote tripping mechanism separable contact is opened, and avoid short circuit.The position of this armature 14 is near bimetal leaf 13.One end of the yoke 15 of a U-shaped and thermal element 12 and bimetal leaf 13 are fitted together, and two arms 20 and 21 of yoke 15 extend near the armature 14.When being short-circuited, produce the magnetic field that is directly proportional with the electric current that flows through thermal element in the yoke.When the magnetic force in this magnetic field during greater than predetermined value, armature turns to yoke, and the contact is opened in the trigger end action of actuator, cuts off electric current, and the protection load avoids short circuit to damage.
The problem that above-mentioned existing circuit breaker trip mechanism exists is to shield when short circuit current is big.When short circuit current less (for example 16-40 ampere), the magnetic field that the thermo magnetic trip release device of this structure produces a little less than, therefore can not make armature turn to yoke, can't play a protective role.
Retrieval finds, application number is that the clapper armature system that 00802885.0 patent application discloses a kind of line-breaker comprises a heater, and it has a heating element and a pair of electric conductor.Heating element and two conductors are electrically connected and are therebetween.Between conductor and heating element certain space is arranged, between conductor and heating element, to form a pair of groove.The heat-sensitive sheet that one end is electrically connected with a conductor at least is in the position near heating element.Yoke has a pair of arm, and each arm passes the groove of heater respectively.Heating element and heat-sensitive sheet are between two arms and form a plurality of current paths betwixt.When the electric current by heater and heat-sensitive sheet arrived certain value, bell clapper turned to two arms of yoke, and a pair of separable contacts of line-breaker is opened.Though above-mentioned improvement has improved tripping mechanism temperature-sensitive sensitivity, and its curved structure also played the effect that increases magnetic field to a certain extent, and part can not be general with big electric current product, and interchangeability is poor, the cost height.
Summary of the invention
The objective of the invention is to: at the shortcoming that above prior art exists, propose a kind ofly under less short circuit current situation, also can reliably play a protective role, and break tripping device simple in structure, cost economy.
In order to reach above purpose, break tripping device of the present invention mainly is made up of the action triggers part and the tripping mechanism of actuator; Described tripping mechanism contains fixing heater element, and an end of described heater element is as current input terminal, and the other end is electrically connected with the stiff end of bimetal leaf, and the free end of described bimetal leaf is near the action triggers end of actuator; The U-shaped yoke is housed near the described heater element, and the extending arm relative position of described U-shaped yoke is equipped with the hinged armature of an end, and the free end of described armature is near the action triggers end of actuator; Its improvements are: be wound with coil at least one extending arm of described yoke, the two ends of described coil are electrically connected with current input terminal and current output terminal respectively.
When short circuit current process coil, the magnetic field intensity that produces on the yoke is directly proportional with coil turn, even have only small electric stream to pass through, also can produce the magnetic field that is enough to the adhesive armature action, and then pass through the action triggers end transmission of actuator, realize the execution action of actuator, like this with simple architecture advances, effectively overcome the problem that prior art exists, and cost economy.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the prior art constructions schematic diagram.
Fig. 2 is the structural representation of one embodiment of the invention.
Fig. 3 is the three-dimensional decomposition texture schematic diagram of tripping mechanism among Fig. 2.
Embodiment
Embodiment one
The break tripping device 30 of present embodiment mainly is made up of action triggers part 40, thermal tripping mechanism 60 and the magnetic tripping mechanism 50 of actuator as shown in Figure 2.Wherein, the action triggers part 40 of actuator mainly is made of snap close 41 and draw bar 42.One end of snap close 41 and the middle part of draw bar 42 are hinged respectively on the framework of release, and what the upper arm 43 of draw bar 42 hooked snap close 41 hangs end.The middle part of snap close 41 leans on spring, has the trend that moves upward.
During work, as overcurrent when the thermal tripping mechanism 60, the free end of bimetal leaf 17 (upper end) bending, the upper arm 43 that promotes draw bar 42 clockwise rotates, and snap close 41 is thrown off, and then order about actuator's action and make circuit breaker disconnect; As short circuit current when the magnetic tripping mechanism 50, the magnetic field suction armature 14 that is produced, the underarm that promotes draw bar 42 clockwise rotates, and snap close 41 is thrown off, and then order about actuator's action circuit breaker is disconnected.
The concrete structure that improves the back tripping mechanism is referring to Fig. 3, and heater element 12 is connected with the end riveted joint of bimetal leaf 13, and the free end 17 of bimetal leaf 13 is near the upper arm 43 of draw bar 42.Contiguous heater element is equipped with U-shaped yoke 15, and two extending arm relative positions of U-shaped yoke 15 are equipped with the hinged armature of an end 14, and the free end of armature 14 is near the underarm of draw bar 42.Free end 17 solderings of bimetal leaf connect an end of soft copper litzendraht wire 3 (also can adopt other flexible conductor), the other end of this soft copper litzendraht wire 3 is connected with an end soldering of conductive coil 4, thereby guarantee that under situation about electrically contacting, the free-ended degree of freedom of bimetal leaf is unrestricted.The coil 4 of certain number of turn is looped around on the extending arm of yoke 15, the other end and current output terminal 6 welding.
Like this, during short circuit, electric current through heater element, bimetal leaf, coil, by output output, when flowing through coil, will produce the magnetic field that intensity is directly proportional with coil turn on the yoke from input.Therefore,, can guarantee that also armature is attracted action, realize required dropout control even have only small electric stream to pass through.
Experimental results show that, the break tripping device of present embodiment is owing to the free end by bimetal leaf is electrically connected with coil, therefore not only significantly improved the performance that magnetic is threaded off, the circuit-breaker that can be used for little electric current, and further improve and guaranteed hot dropout performance, it is active in one's movements, dependable performance.During manufacturing, only need on the existing product basis, to add improvement and get final product, cost economy, practical, be easy on the basis that is fit to big electric current product, form the tandem product that is fit to little electric current.
In addition to the implementation, the present invention can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of requirement of the present invention.
Claims (5)
1. a break tripping device mainly is made up of the action triggers part and the tripping mechanism of actuator; Described tripping mechanism contains fixing heater element, and an end of described heater element is as current input terminal, and the other end is electrically connected with the stiff end of bimetal leaf, and the free end of described bimetal leaf is near the action triggers end of actuator; The U-shaped yoke is housed near the described heater element, and the extending arm relative position of described U-shaped yoke is equipped with the hinged armature of an end, and the free end of described armature is near the action triggers end of actuator; It is characterized in that: be wound with coil at least one extending arm of described yoke, the two ends of described coil are electrically connected with current input terminal and current output terminal respectively.
2. according to the described break tripping device of claim 1, it is characterized in that: the free end of described bimetal leaf is electrically connected with an end of coil.
3. according to the described break tripping device of claim 2, it is characterized in that: the free end of described bimetal leaf is electrically connected with coil by flexible conductor.
4. according to the described break tripping device of claim 3, it is characterized in that: described flexible conductor is a copper litz wire.
5. according to the described break tripping device of one of claim 1-4, it is characterized in that: the action triggers part of described actuator mainly is made of snap close and draw bar; Described snap close one end and draw bar middle part is hinged respectively on the framework of release, and what an end hook of described draw bar was lived snap close hangs end; The middle part of described snap close leans on spring; The free end of described bimetal leaf and armature is the upper arm and the underarm of close draw bar respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101612246A CN100464387C (en) | 2006-12-15 | 2006-12-15 | Break tripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101612246A CN100464387C (en) | 2006-12-15 | 2006-12-15 | Break tripping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101004987A CN101004987A (en) | 2007-07-25 |
| CN100464387C true CN100464387C (en) | 2009-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101612246A Active CN100464387C (en) | 2006-12-15 | 2006-12-15 | Break tripping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100464387C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359561B (en) * | 2007-08-03 | 2013-02-27 | 施耐德电器工业公司 | Release with step type yoke structure and circuit breaker with the release |
| CN101976640B (en) * | 2010-09-20 | 2012-11-21 | 江苏大全凯帆电器股份有限公司 | Low-voltage breaker tripper |
| CN102760618B (en) * | 2011-04-26 | 2015-04-08 | 西门子公司 | Tripping mechanism of circuit breaker and circuit breaker |
| CN103903921B (en) | 2012-12-28 | 2016-08-17 | 施耐德电器工业公司 | Overload protection arrangement and include the thermomagnetic adjustable release device of breaker of this device |
| CN105448613B (en) * | 2014-08-15 | 2019-05-07 | 施耐德电气工业公司 | Buckle releaser for breaker |
| CN104900456A (en) * | 2015-05-06 | 2015-09-09 | 温州高能电气有限公司 | Moulded case circuit breaker and tripping mechanism thereof |
| DE102016208930A1 (en) * | 2016-05-24 | 2017-11-30 | Siemens Aktiengesellschaft | Overload release |
| CN106783437B (en) * | 2017-01-20 | 2018-09-07 | 温州市新蓝天电器有限公司 | A kind of breaker |
| FR3076065B1 (en) * | 2017-12-21 | 2020-11-20 | Schneider Electric Ind Sas | TRIGGER FOR AN ELECTRICAL SWITCHING DEVICE AND ELECTRICAL SWITCHING DEVICE INCLUDING SUCH A TRIP TRIGGER |
| CN111180282B (en) * | 2020-01-09 | 2022-03-29 | 江苏辉能电气有限公司 | Thermal tripping device of high-capacity molded case circuit breaker and molded case circuit breaker |
| CN113675051A (en) * | 2021-09-07 | 2021-11-19 | 江苏辉能电气有限公司 | Circuit breaker tripping device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86105712A (en) * | 1985-07-31 | 1987-04-08 | 默林·格伦 | The switchette of band multiple moving contacts and thermo magnetic trip release |
| CN1050789A (en) * | 1989-10-05 | 1991-04-17 | 西屋电气公司 | Circuit breaker with the tripping operation of the low current magnetic force of movable electromagnetic core |
| JPH0652782A (en) * | 1991-02-28 | 1994-02-25 | Telemecanique | Electric switch device |
| US5444423A (en) * | 1994-02-14 | 1995-08-22 | Square D | Latch mechanism for a circuit breaker |
| US5870008A (en) * | 1997-02-21 | 1999-02-09 | General Electric Company | Residential circuit breaker having an enhanced thermal-magnetic trip unit |
| CN1337054A (en) * | 1999-09-23 | 2002-02-20 | 通用电气公司 | Clapper armature system for a circuit breaker |
| CN200993945Y (en) * | 2006-12-15 | 2007-12-19 | 大全集团有限公司 | Trip release device for circuit breaker |
-
2006
- 2006-12-15 CN CNB2006101612246A patent/CN100464387C/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86105712A (en) * | 1985-07-31 | 1987-04-08 | 默林·格伦 | The switchette of band multiple moving contacts and thermo magnetic trip release |
| CN1050789A (en) * | 1989-10-05 | 1991-04-17 | 西屋电气公司 | Circuit breaker with the tripping operation of the low current magnetic force of movable electromagnetic core |
| JPH0652782A (en) * | 1991-02-28 | 1994-02-25 | Telemecanique | Electric switch device |
| US5444423A (en) * | 1994-02-14 | 1995-08-22 | Square D | Latch mechanism for a circuit breaker |
| US5870008A (en) * | 1997-02-21 | 1999-02-09 | General Electric Company | Residential circuit breaker having an enhanced thermal-magnetic trip unit |
| CN1337054A (en) * | 1999-09-23 | 2002-02-20 | 通用电气公司 | Clapper armature system for a circuit breaker |
| CN200993945Y (en) * | 2006-12-15 | 2007-12-19 | 大全集团有限公司 | Trip release device for circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101004987A (en) | 2007-07-25 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Daqo Kaifan Electric Appliance Co., Ltd. Assignor: Daquan Group Co., Ltd. Contract fulfillment period: 2009.3.31 to 2017.3.30 Contract record no.: 2009320000658 Denomination of invention: Break tripping device Granted publication date: 20090225 License type: Exclusive license Record date: 20090422 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.3.31 TO 2017.3.30; CHANGE OF CONTRACT Name of requester: JIANGSU DAQUANKAIFAN ELECTRICAL APPLIANCES CO., LT Effective date: 20090422 |
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Owner name: JIANGSU DAQO KFINE ELECTRIC CO., LTD Free format text: FORMER OWNER: DAQO GROUP CO., LTD. Effective date: 20100712 |
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Free format text: CORRECT: ADDRESS; FROM: 212211 NO.66, XINZHONG SOUTH ROAD, XINBA TOWN, YANGZHONG CITY, JIANGSU PROVINCE TO: 212200 YIHE ROAD, DEVELOPMENT ZONE, YANGZHONG CITY, JIANGSU PROVINCE |
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Effective date of registration: 20100712 Address after: Yihe Road Development Zone in Yangzhong City, Jiangsu province 212200 Patentee after: Jiangsu Daqo Kaifan Electric Appliance Co., Ltd. Address before: 212211 Jiangsu city of Yangzhong Province in the New South Road Xinba No. 66 Patentee before: Daquan Group Co., Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: HENGYANG BISHENG WALLS DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: GUANGZHOU BISHENG PATENT SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20101102 |
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Free format text: CORRECT: ADDRESS; FROM: 510660 UNIT 7, BOTTOM FLOOR, BUILDING 3, GUANGZHENG FACTORY BUILDING, NO.1, BEIMEN AVENUE, CHEPO, TIANHE DISTRICT, GUANGZHOU CITY, GUANGDONG PROVINCE TO: 421001 INDUSTRY PARK, YUNJI, HENGNAN COUNTY, HENGYANG CITY, HU'NAN PROVINCE |
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| CP03 | Change of name, title or address |
Address after: Yihe road 212200 Yangzhong City Development Zone Patentee after: Jiangsu Daqo Kfine Electric Co., Ltd. Address before: Yihe Road Development Zone in Yangzhong City, Jiangsu province 212200 Patentee before: Jiangsu Daqo Kaifan Electric Appliance Co., Ltd. |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20160914 Address after: Xinba Daquan 212211 Yangzhong Road, Zhenjiang City, Jiangsu province 66 Patentee after: Jiangsu Daquan Kai Kai switch Co., Ltd. Address before: Yihe Road Development Zone of Yangzhong City Patentee before: Jiangsu Daqo Kfine Electric Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| 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. |