CN101937811B - Automatic resetting mechanism of electromagnetic release - Google Patents
Automatic resetting mechanism of electromagnetic release Download PDFInfo
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- CN101937811B CN101937811B CN 201010289932 CN201010289932A CN101937811B CN 101937811 B CN101937811 B CN 101937811B CN 201010289932 CN201010289932 CN 201010289932 CN 201010289932 A CN201010289932 A CN 201010289932A CN 101937811 B CN101937811 B CN 101937811B
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- magnetictrip
- contact
- handle
- contact site
- faller
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Abstract
The invention relates to an automatic resetting mechanism of an electromagnetic release, comprising a rotational handle, a rotational contact mechanism and a resetting link, wherein the handle is linked with the contact mechanism; the far end of the contact mechanism is provided with a triggering part; the resetting link comprises a rotational rotating body, a first additional rod and a second additional rod, wherein the first additional rod and the second additional rod respectively extend out of the rotating body; the first additional rod is provided with a first contact part contacting with the triggering part and a second contact part contacting with a mandrel of the electromagnetic release; the handle is also provided with a deflector rod; and the second additional rod is provided with a third contact part contacting with the deflector rod. The invention can ensure that a breaker is smoothly released when a line is faulty and the electromagnetic release automatically resets, can greatly simplify the mechanism, enhance the stability and the resetting reliability of the mechanism and bring about the convenience for the assembly of an integral machine.
Description
Technical field
The present invention the present invention relates to Low Voltage Electrical Apparatus, relates to specifically the automatic reset mechanism of magnetictrip.
Background technology
Trip gear in circuit breaker is a necessary component impelling breaker open operation.Magnetictrip is provided with push rod, by magnetictrip, ejecting of push rod is promoted to the circuit breaker snap close, thereby makes breaker open operation, has effectively avoided the generation of accident.After fault is got rid of, the circuit breaker energising of need closing a floodgate.The push rod of magnetictrip should first be got back to initial condition, otherwise circuit breaker can't close a floodgate.Therefore need to there is resetting device that push rod is returned.Existing resetting device is mostly comparatively complicated, it is loaded down with trivial details to assemble, and manufacture require, precision is high, thereby give design, produce, assembling brings very big inconvenience.
The utility model content
The technical problem to be solved in the present invention of the present invention is to provide a kind of automatic reset mechanism of magnetictrip, when circuit breaks down, guarantees circuit breaker dropout and magnetictrip reliable reset smoothly.
Of the present invention by the following technical solutions:
A kind of automatic reset mechanism of magnetictrip, but but comprise the handle of rotation and the contact mechanism of rotation, handle and contact mechanism interlock, be provided with trigger unit at the contact mechanism far-end, also comprise release link, but described release link comprises on the rotor of rotation and rotor extended first, second faller respectively, described the first faller is provided with the first contact site contacted with trigger unit, with the second contact site contacted with the push rod of magnetictrip, also be provided with driving lever on described handle, described the second faller is provided with the 3rd contact site contacted with driving lever.
Further, described the first faller is located between push rod and trigger, between the first contact site and trigger unit, leaves gap.
Further, described contact mechanism is provided with the snap close piece coaxial with contact mechanism, and trigger unit is in the bottom of snap close piece.
Further, described first, second contact site is respectively in the both sides of the first faller.
Further, described second, third contact site homonymy, when driving lever promotes the 3rd contact site, the second contact site is pressed on push rod.
Further, described structure of contact terminal is hubbed in the first rotating shaft, and handle is hubbed in the second rotating shaft, and release link is hubbed in the 3rd rotating shaft.
Further, the rotor of described release link and the 3rd rotating shaft matched in clearance.
Further, establish torsion spring in described the second rotating shaft.
Further, also comprise limit shaft, be located at a side of the 3rd contact site on the second faller.
Of the present invention can guarantee that circuit breaks down the time circuit breaker smooth dropout and automatically magnetictrip is resetted.When short circuit, utilize the tripping force of magnetictrip to promote release link, then make the circuit breaker tripping separating brake by release link promotion snap close piece, during separating brake, utilize the moving release link of trying hard to recommend of handle and handle torsion spring that magnetictrip is resetted.Power by handle and handle torsion spring self resets magnetictrip, and the complexity that can greatly simplify the internal structure of an organization improves mechanism stable and the reliability that resets, and brings convenience to final assembly.
The accompanying drawing explanation
The structural representation of the automatic reset mechanism that Fig. 1 is the magnetictrip that the present invention relates to of the present invention, wherein be illustrated as the action signal of release when circuit breaker tripping.
Fig. 2 is that the release shown in Fig. 1 moves signal when reset of breaker.
Embodiment
The structural representation of the automatic reset mechanism of the magnetictrip the present invention relates to for the present invention as shown in Figure 1.This resetting device is located between upper and lower shell (see in figure 10), comprise contact mechanism 1, handle 2, described contact mechanism 1 is around the first rotating shaft 5 rotations, and handle 2 is around the second rotating shaft 6 rotations, be provided with connecting rod 9 between contact mechanism 1 and handle 2, so contact mechanism 1 links with handle 2.When contact mechanism 1 rotates, handle 2 also can and then rotate; Perhaps, when handle 2 rotates, contact mechanism 1 and then rotates.Contact mechanism 1 is provided with snap close piece 11, and this snap close piece 11 equally can be around the first rotating shaft 5 rotations, and the bottom of snap close piece 11 (away from an end of the first rotating shaft 5) is trigger unit 12.Also be provided with the 3rd rotating shaft 7 on Shell of circuit breaker, have a release link 4 to be located in the 3rd rotating shaft 7, and rotate around the 3rd rotating shaft 7.See Fig. 1, the centre of handle 2, snap close piece 11 and magnetictrip 3 is located in the 3rd rotating shaft 7, and between magnetictrip 3 and trigger unit 12, certain gap is arranged.Release link 4 comprises that the rotor 41 of a cylindrical shape and two are from rotor 41 extended first, second faller 42,43 respectively.Described rotor 41 is articulated in the 3rd rotating shaft 7, can rotate around the 3rd rotating shaft 7.Described the first faller 42 is located in the gap between push rod 31 and trigger unit 12, when magnetictrip 3 is not worked, need to leave gap between the first faller 42 and trigger unit 12, to guarantee that push rod 31 stretches out, to the enough impulsive forces of the first faller 42 to remove to promote snap close piece 11.The first faller 42 comprises is located at two not first, second contact sites 44,45 on ipsilateral.Described the first contact site 44 is for contacting with trigger unit 12, and described the second contact site 45 contacts for the push rod 31 with magnetictrip 3.See figure, in the present embodiment, the left side that the head of the first faller 42 (right side) is the first contact site 44, the first faller 42 bodies is the second contact site 45.When release link 4 is rotated counterclockwise around the 3rd rotating shaft 7, the first contact site 44 can be encountered trigger unit 12; When release link 4 turns clockwise around the 3rd rotating shaft 7, the second contact site 45 can be encountered push rod 31.Described the second faller 42 comprise the 3rd contact site 46, the three contact sites 46 need with the second contact site 45 homonymies.In the present embodiment, the 3rd contact site 46 is in the left side of the second faller 43.Handle 2 is provided with driving lever 21, and when handle 2 rotates counterclockwise, driving lever 21 contacts with the 3rd contact site 46, makes release link 4 do and clockwise rotate around the 3rd rotating shaft 7.Release link 4 has certain elasticity and rigidity, under moderate forces is used, can produce a certain amount of twist and warping.The rotor 41 of release link 4 and the 3rd rotating shaft 7 are matched in clearance, that is to say that release link 4 and the 3rd rotating shaft 7 have certain gap in rotating shaft axially, and release link 4 can freely be rotated around the 3rd rotating shaft 7 like this.Excessive for preventing that release link 4 from rotating counterclockwise angle, also be provided with limit shaft 8 on housing, this limit shaft 8 is located at the left side of the second faller 43, can limit the slewing area that the second faller 43 rotates counterclockwise.In addition, in the second rotating shaft 6, also cover has torsion spring 22, and when handle 2 is rotated counterclockwise, torsion spring 22 can discharge the energy of storage.
The present invention's operation principle of the present invention is as follows:
As shown in Figure 1, breaker closing, as circuit breaks down, now magnetictrip 3 obtains extraneous fault-signal, makes magnetictrip 3 liftout attachments that push rod 31 is ejected to (as shown by arrows).Ejecting force by push rod 31 promotes release link 4, release link 4 rotates counterclockwise, (snap close piece 11 rotates around the first rotating shaft 5 trigger unit 12 on the first contact site 44 promotion snap close pieces 11 of the first faller 42, as shown by arrows), thereby makes the smooth separating brake of circuit breaker.For the impulsive force that guarantees to promote snap close piece 11 enough large, release link 4 can freely be rotated (as shown by arrows) around the 3rd rotating shaft 7, effectively reduced like this frictional force between release link 4 and the 3rd rotating shaft 7, and push rod 31 has certain gap with trigger unit 12, make release link 4 promote at short notice snap close piece 11, circuit breaker generation separating brake.
In the process of circuit breaker tripping separating brake, as shown in Figure 2, contact mechanism 1 rotates counterclockwise, now handle 2 also rotates counterclockwise (as shown by arrows) simultaneously, driving lever 21 on handle 2 (with handle 2 one) utilizes the torsion of the torsion spring 22 of handle 2 to encounter the 3rd contact site 46 of the second faller 43, and promotion release link 4 clockwise rotates (as shown by arrows), and the second contact site 45 on release link 4 first fallers 42 is being pressed the push rod 31 of magnetictrip 3, force push rod 31 to be moved to the left until the push rod 31 of magnetictrip 3 resets (as shown by arrows).Automatically complete electrical equipment release 3 by breaker open operation thus and reset, and ready for closing a floodgate.
Described release link 4 can freely be rotated around the 3rd rotating shaft 7 (when limit shaft 8 does not exist, but release link 4 complete cycles rotate), moment push rod 31 ejected at magnetictrip 3 liftout attachments will act on a very large impulsive force on release link 4, thereby the amount of spin of release link 4 can't be determined.Therefore add the amount of spin of a limit shaft 8 with restriction release link 4 in release link 4 left sides, simultaneously also guarantee that the driving lever 21 of handle 2 can reliably push the second faller 43 of release link 4, make push rod 31 reliable reset of magnetictrip 3, thereby the button again that completes circuit breaker resets.
Claims (8)
1. the automatic reset mechanism of a magnetictrip, but comprise rotation handle (2) but and the contact mechanism of rotation (1), handle (2) and contact mechanism (1) interlock, be provided with trigger unit (12) at contact mechanism (1) far-end, it is characterized in that: also comprise release link (4), described release link (4) but comprise the rotor (41) of rotation and rotor (41) upper respectively extended first, the second faller (42, 43), described the first faller (42) is provided with the first contact site (44) contacted with trigger unit (12), the second contact site (45) contacted with push rod (31) with magnetictrip (3), also be provided with driving lever (21) on described handle (2), described the second faller (43) is provided with the 3rd contact site (46) contacted with driving lever (21), during separating brake, utilize the moving release link (4) of trying hard to recommend of handle (2) that magnetictrip (3) is resetted, described the first faller (42) is located between push rod (31) and trigger, between the first contact site (44) and trigger unit (12), leaves gap, and between push rod (31) and trigger unit (12), certain gap is arranged.
2. the automatic reset mechanism of magnetictrip according to claim 1, it is characterized in that: described contact mechanism (1) is provided with the snap close piece (11) coaxial with contact mechanism (1), and trigger unit (12) is in the bottom of snap close piece (11).
3. the automatic reset mechanism of magnetictrip according to claim 1 is characterized in that: described first, second contact site (44,45) is respectively in the both sides of the first faller (42).
4. the automatic reset mechanism of magnetictrip according to claim 3, it is characterized in that: described second, third contact site (45,46) homonymy, when driving lever (21) promotes the 3rd contact site (46), the second contact site (45) is pressed on push rod (31).
5. the automatic reset mechanism of magnetictrip according to claim 1, it is characterized in that: described structure of contact terminal (1) is hubbed in the first rotating shaft (5), it is upper that handle (2) is hubbed at the second rotating shaft (6), and release link (4) is hubbed in the 3rd rotating shaft (7).
6. the automatic reset mechanism of magnetictrip according to claim 5, is characterized in that: the rotor (41) of described release link (4) and the 3rd rotating shaft (7) matched in clearance.
7. the automatic reset mechanism of magnetictrip according to claim 5, is characterized in that: establish torsion spring (22) in described the second rotating shaft (6).
8. the automatic reset mechanism of magnetictrip according to claim 1, is characterized in that: also comprise limit shaft (8), be located at a side of upper the 3rd contact site (46) of the second faller (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010289932 CN101937811B (en) | 2010-09-21 | 2010-09-21 | Automatic resetting mechanism of electromagnetic release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010289932 CN101937811B (en) | 2010-09-21 | 2010-09-21 | Automatic resetting mechanism of electromagnetic release |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101937811A CN101937811A (en) | 2011-01-05 |
| CN101937811B true CN101937811B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010289932 Active CN101937811B (en) | 2010-09-21 | 2010-09-21 | Automatic resetting mechanism of electromagnetic release |
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| CN (1) | CN101937811B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202210497U (en) * | 2011-08-09 | 2012-05-02 | 上海良信电器股份有限公司 | Locking and unlocking mechanism for circuit breaker |
| CN103632900B (en) * | 2012-08-22 | 2016-04-13 | 西门子公司 | Resetting means and residual current action breaker |
| CN104900455B (en) * | 2015-05-28 | 2017-09-12 | 温州锐能电器有限公司 | The tripping system of RCCB |
| CN105161377A (en) * | 2015-09-25 | 2015-12-16 | 深圳供电局有限公司 | Direct-current miniature circuit breaker and linkage mechanism for direct-current power supply of transformer substation |
| CN108807099B (en) * | 2017-05-04 | 2024-03-15 | 周思雨 | Miniature circuit breaker and manual opening kick assembly and method thereof |
| CN107887234B (en) * | 2017-12-12 | 2020-06-19 | 上海电科电器科技有限公司 | Magnetic flux release |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4916420A (en) * | 1987-06-09 | 1990-04-10 | Merlin Gerin | Operating mechanism of a miniature electrical circuit breaker |
| CN101645375A (en) * | 2008-08-07 | 2010-02-10 | 湖北盛佳电器设备有限公司 | Mechanical short circuit protection breaker |
| CN201804813U (en) * | 2010-09-21 | 2011-04-20 | 上海良信电器股份有限公司 | Automatic resetting mechanism of electromagnetic trip |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4110769B2 (en) * | 2001-08-27 | 2008-07-02 | 三菱電機株式会社 | Circuit breaker |
-
2010
- 2010-09-21 CN CN 201010289932 patent/CN101937811B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4916420A (en) * | 1987-06-09 | 1990-04-10 | Merlin Gerin | Operating mechanism of a miniature electrical circuit breaker |
| CN101645375A (en) * | 2008-08-07 | 2010-02-10 | 湖北盛佳电器设备有限公司 | Mechanical short circuit protection breaker |
| CN201804813U (en) * | 2010-09-21 | 2011-04-20 | 上海良信电器股份有限公司 | Automatic resetting mechanism of electromagnetic trip |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003-151424A 2003.05.23 |
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| Publication number | Publication date |
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| CN101937811A (en) | 2011-01-05 |
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