CN102231349A - Breaker with over current trip transmission device - Google Patents
Breaker with over current trip transmission device Download PDFInfo
- Publication number
- CN102231349A CN102231349A CN2011101557790A CN201110155779A CN102231349A CN 102231349 A CN102231349 A CN 102231349A CN 2011101557790 A CN2011101557790 A CN 2011101557790A CN 201110155779 A CN201110155779 A CN 201110155779A CN 102231349 A CN102231349 A CN 102231349A
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- CN
- China
- Prior art keywords
- trip
- trip shaft
- dropout plate
- transmission device
- circuit breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to a breaker with an over current trip transmission device, comprising a trip shaft, a trip plate and a trip hook, wherein the trip hook is arranged at one end of the trip plate and the other end of the trip plate surrounds the trip shaft and is self-locked on the trip shaft through a bolt. In the invention, the quantity of parts of a trip shaft system of the breaker is decreased and the trip plate can be made from nylon 66 to ensure that the processing cost of the trip shaft is reduced and the mechanical strength of the trip shaft and the trip plate is enhanced; the parameters can be conveniently adjusted; the production efficiency is increased; and the working reliability of the trip shaft system of the breaker is greatly improved.
Description
Technical field
The present invention relates to a kind of circuit breaker, relate in particular to a kind of circuit breaker with overcurrent release transmission device.
Background technology
Circuit breaker of the prior art is made up of electric contact-system, the drive system with trip free function, protection system and arc quenching system four parts.General circuit breaker all has a trip shaft; there are three places that the dropout plate is installed on the trip shaft; respectively with the three-phase overcurrent armature of circuit breaker on re-pack corresponding; when making circuit breaker any that overload or short circuit accident take place mutually; fault-signal all can be delivered to the transmission device with trip free function by trip shaft; the dropout plate matches with the armature of circuit breaker overcurrent electromagnetic system respectively with trip dog; when overload or short circuit accident appear in circuit; the armature adhesive of overcurrent electromagnetic system is rotated to the iron core direction; the re-packing promotion trip dog that is installed on the armature rotates trip shaft; rotating torque is passed to transmission device with trip free function; circuit breaker is disconnected, and circuit is protected.
Trip shaft is to connect protection system and the vitals with transmission device of trip free function.With DW15-1000～4000A Series Circuit Breakers is example, and every defencive function of this Series Circuit Breakers all is to finish breaking circuit breaker by rotating trip shaft, realizes protection.Overcurrent protection is one of most important protection project of circuit breaker.See accompanying drawing 1, by re-pack 11, iron core 12 and armature 13 forms the overcurrent electromagnetic system, form the trip shaft drive system by dropout plate 14, trip shaft 15 and standard component etc., dropout plate 14 is made by the heat curing-type insulating material, there is circular hole at two ends, one end installation code bolt and the electromagnetism system of re-packing carry out dynamic fit, and the other end is installed on the trip shaft.Armature 13 is to iron core 12 directions motions when electric current reaches definite value, and riveted re-packing on armature 13 11 promotes bolts 16, and the bolt 16 here is exactly the trip dog on the plate 14 of threading off, and rotates trip shaft 15, and circuit breaker is disconnected.In the trip shaft system of DW15-1000～4000A Series Circuit Breakers, dropout plate 14 is made by the thermosetting insulation material, and mechanical performance is lower, and armature 13 moves rapidly during big overcurrent, hit the bolt 16 on the dropout plate 14, interrupt or break phenomenon when therefore threading off plate 14 and occur.And in the overcurrent adjusting process, regulate bolt 16 and the 1 operation more complicated that cooperates that re-packs on the dropout plate 14, the time deadlock phenomenon generation arranged.Trip shaft processing technology complexity in process of production needs through operations such as groove milling, borings in addition.
In sum, the deficiency of circuit breaker trip shaft system is in the prior art:
(1) dropout plate mechanical performance is low, interrupts easily or breaks;
(2) regulate trip dog more complicated on the dropout plate;
(3) the processing technology complexity of trip shaft.
Summary of the invention
In order to address the above problem, the invention provides a kind of circuit breaker with overcurrent release transmission device, in the hope of improving the functional reliability of trip shaft system, make things convenient for the circuit breaker parameters adjustment, cut down finished cost, simplified installation procedure, enhance productivity.
The technical scheme that the present invention takes is:
A kind of circuit breaker with overcurrent release transmission device comprises trip shaft, dropout plate and trip dog, and described trip dog is arranged on an end of dropout plate, it is characterized in that, the other end of described dropout plate is self-locking on the trip shaft around trip shaft and by bolt.
Further, described trip dog and dropout plate are one.
Further, described trip dog is the bolt that is arranged on dropout plate one end.
Further, described dropout plate has done to increase the processing of frictional force around the contact-making surface of trip shaft.
Further, described dropout plate adopts nylon 66 to make.
The invention has the beneficial effects as follows:
(1) trip dog is one-body molded with the dropout plate, and unstressed concentrating used nylon 66, not easy fracture in addition;
(2) the dropout plate only needs just can adjust the gap of trip dog and armature by adjusting self-locking screw around trip shaft;
(3) trip shaft need not to carry out special processing and just can lock with the dropout plate.
Description of drawings
Accompanying drawing 1 is the structural representation of existing circuit breaker trip shaft system;
Accompanying drawing 2 is structural representations of circuit breaker tripping axle system of the present invention.
Label in the accompanying drawing is respectively:
11. re-pack; 12. iron core; 13. armature;
14. dropout plate; 15. trip shaft; 16. bolt;
21. re-pack; 22. iron core; 23. armature;
24. dropout plate; 25. trip shaft; 26. trip dog;
27. bolt.
Embodiment
Below in conjunction with accompanying drawing the embodiment with circuit breaker of overcurrent release transmission device provided by the invention is elaborated.
Referring to accompanying drawing 2; a kind of circuit breaker with overcurrent release transmission device; comprise trip shaft 25; dropout plate 24 and trip dog 26; trip dog 26 is arranged on an end of dropout plate 24; the other end of dropout plate 24 is self-locking on the trip shaft 25 around trip shaft 25 and by bolt 27; match by armature 23 with circuit breaker overcurrent electromagnetic system; when overload or short circuit accident appear in circuit; armature 23 adhesives of overcurrent electromagnetic system are rotated to iron core 22 directions; the 21 promotion trip dogs 26 that re-pack that are installed on the armature 23 rotate trip shaft 25 by dropout plate 24; rotating torque is passed to transmission device with trip free function; circuit breaker is disconnected, and circuit is protected.
Though the set-up mode of trip dog 26 on dropout plate 24 can adopt the connected mode of bolt in the accompanying drawing 1 16 and dropout plate 14, but, its preferable mode is one-body molded, useful nylon 66 is made dropout plate 14, make it have stronger mechanical strength, trip dog 26 is done one-body molded setting with dropout plate 24, and the intensity that can reduce the dropout plate 24 that caused by the stress that bolt hole brings reduces.The exterior design of trip dog 26 can take into full account with electromagnetic system in 21 the dynamic fit of re-packing, avoided generation with 21 deadlock phenomenons that re-pack.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. the circuit breaker with overcurrent release transmission device comprises trip shaft, dropout plate and trip dog, and described trip dog is arranged on an end of dropout plate, it is characterized in that: the other end of described dropout plate is self-locking on the trip shaft around trip shaft and by bolt.
2. the circuit breaker with overcurrent release transmission device according to claim 1 is characterized in that: described trip dog and dropout plate are one.
3. the circuit breaker with overcurrent release transmission device according to claim 1 is characterized in that: described trip dog is the bolt that is arranged on dropout plate one end.
4. according to each described circuit breaker with overcurrent release transmission device in the claim 1 to 3, it is characterized in that: described dropout plate has done to increase the processing of frictional force around the contact-making surface of trip shaft.
5. according to each described circuit breaker with overcurrent release transmission device in the claim 1 to 3, it is characterized in that: described dropout plate adopts nylon 66 to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101557790A CN102231349A (en) | 2011-06-10 | 2011-06-10 | Breaker with over current trip transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101557790A CN102231349A (en) | 2011-06-10 | 2011-06-10 | Breaker with over current trip transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102231349A true CN102231349A (en) | 2011-11-02 |
Family
ID=44843907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101557790A Pending CN102231349A (en) | 2011-06-10 | 2011-06-10 | Breaker with over current trip transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102231349A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2624382Y (en) * | 2003-06-12 | 2004-07-07 | 杭州之江开关有限公司 | Novel structure of tripping semiaxis of breaker operating mechanism |
| CN2938383Y (en) * | 2006-08-30 | 2007-08-22 | 刘本鹊 | Electromagnetic leakage switch |
| CN200997378Y (en) * | 2006-09-13 | 2007-12-26 | 浙江德力西电器股份有限公司 | Inleakage releasing mechanism of circuit breaker |
| CN101964283A (en) * | 2010-10-29 | 2011-02-02 | 天津市百利电气有限公司 | Air circuit breaker with mating part pull-in aid piece of undervoltage tripper reliably fixed |
| CN201859785U (en) * | 2010-12-02 | 2011-06-08 | 天水长城开关厂有限公司 | Closing holding and opening tripping structure of circuit breaker |
-
2011
- 2011-06-10 CN CN2011101557790A patent/CN102231349A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2624382Y (en) * | 2003-06-12 | 2004-07-07 | 杭州之江开关有限公司 | Novel structure of tripping semiaxis of breaker operating mechanism |
| CN2938383Y (en) * | 2006-08-30 | 2007-08-22 | 刘本鹊 | Electromagnetic leakage switch |
| CN200997378Y (en) * | 2006-09-13 | 2007-12-26 | 浙江德力西电器股份有限公司 | Inleakage releasing mechanism of circuit breaker |
| CN101964283A (en) * | 2010-10-29 | 2011-02-02 | 天津市百利电气有限公司 | Air circuit breaker with mating part pull-in aid piece of undervoltage tripper reliably fixed |
| CN201859785U (en) * | 2010-12-02 | 2011-06-08 | 天水长城开关厂有限公司 | Closing holding and opening tripping structure of circuit breaker |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111102 |