CN101335162A - Fast closing mechanism of small circuit breaker - Google Patents
Fast closing mechanism of small circuit breaker Download PDFInfo
- Publication number
- CN101335162A CN101335162A CNA2008100215008A CN200810021500A CN101335162A CN 101335162 A CN101335162 A CN 101335162A CN A2008100215008 A CNA2008100215008 A CN A2008100215008A CN 200810021500 A CN200810021500 A CN 200810021500A CN 101335162 A CN101335162 A CN 101335162A
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- moving contact
- lever
- fast closing
- circuit breaker
- boss
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention relates to a fast closing mechanism of a small-sized breaker, which mainly adopts a structure that a handle and a connecting link are connected, and the upper end of a moving contact is integrated into one body with a lever through the riveting function of a shaft pin; the middle part of the lever is articulated with a main shaft; the moving contact and the lever is closely connected through a contact pressure spring; a locking spring is provided on a boss of the locking component sharing the same circle center with the main shaft; a fast closing functional component is arranged on the chassis of the shell outside the breaker; the mechanism of the invention is characterized in that: the moving contact is connected with the fast closing functional component through locking. The fast closing functional component is provided with a boss, an elastic thin wall, a side wall and a through hole. The lower end of the lever is provided with a boss, and the boss is connected with a budge through locking. The mechanism of the invention has simple, compact and reasonable structure; when the contacts are to be closed, the fast closing can be realized through mechanical energy storage, causing the operation consuming manpower originally to be changed into the operation without manpower consumption; meanwhile, the mechanism of the invention has reliable performance, easy realization, easy assembly, low cost, relatively low rotational inertia of the moving contact, faster closing and disconnecting velocity as well as improved breaking capacity.
Description
Technical field
The present invention relates to a kind of fast closing mechanism of miniature circuit breaker, specifically fast closing mechanism is installed on miniature circuit breaker after, when contact is soon closed, can lean on mechanical energy storage quick-make contact.
Background technology
In the prior art, fast closing mechanism in the miniature circuit breaker all is that the armrest handle drives, fast closing mechanism described in 97248479.5 1 kinds of high breaking miniature circuit breakers of patent is on the axle of handle rocking arm to be installed; rocking arm is rubbing with the arc surface of contact support in its rotation process; moving contact is suspended on a certain position; along with being rotated further of handle with the contact support of supporting it; drive rocking arm and be rotated further thereupon; when crossing a certain extreme position; the arc surface of rocking arm is crossed the friction surface that contact is supported; the contact support is through after the brief stay, just push ahead fast, thus the quick-make of drive moving contact.This fast closing mechanism is by handle drives, because handle is far away apart from moving contact, and must be by a pipe fitting lengthening moving contact; This indirect part must process with the special engineering plastics of high strength and Good Heat-resistance, and this certainly will increase cost and improve the difficulty that realizes; Simultaneously, the moving contact component that moving contact and this pipe fitting are formed has also increased moment of inertia, has reduced the opening speed of moving contact, has limited breaking capacity; And utilized frictional force as braking force again, made that this structural integrity is relatively poor, reduced reliability.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby a kind of fast closing mechanism of miniature circuit breaker is provided, when contact is soon closed, can lean on mechanical energy storage quick-make contact, make the operation of relevant manpower become the operation of irrelevant manpower; Simple in structure, dependable performance is easy to assembling, and cost is low; The moving contact moment of inertia is lower, and closing speed and breaking speed are accelerated, and breaking capacity improves.
According to technical scheme provided by the invention, a kind of fast closing mechanism of miniature circuit breaker, adopt handle to be installed on the shell, handle is connected with connecting rod, the moving contact upper end is integral with the pivot pin riveted with lever, and the middle part of lever is articulated on the main shaft, and moving contact and lever are fastenedly connected by the contact pressure spring, latch spring is installed on the boss with the concentric snap close piece of main shaft, and lever is connected with the operating mechanism of circuit breaker with moving contact; Closing functor soon is rotatably installed on the case for circuit breaker pedestal; Be characterised in that: moving contact with close the functor snap close soon and be connected.
The described functor that closes soon is provided with boss, elastic thin-wall, sidewall and through hole; Described moving contact is provided with projection.Described lever lower end is provided with a projection; Described boss is connected with protruding snap close.
Being provided with axle in the described through hole passes through.The described functor that closes soon is provided with elastic thin-wall, closes functor soon and automatically resets by its elastic thin-wall.
Compared with the prior art the present invention has the following advantages:
The present invention is simple, compact and reasonable for structure; After it is used to be installed in miniature circuit breaker, when contact is soon closed, can lean on mechanical energy storage quick-make contact, make the operation of relevant manpower become the operation of irrelevant manpower; Dependable performance is easy to realize that be easy to assembling, cost is low; The moving contact moment of inertia is lower, and closing speed and breaking speed are accelerated, and breaking capacity improves.
Description of drawings
Fig. 1 is a fast closing mechanism critical piece decomposing schematic representation of the present invention.
Fig. 2 is a fast closing mechanism initial condition schematic diagram of the present invention.
Fig. 3 is the state of fast closing mechanism of the present invention when starting working.
Fig. 4 is the state of fast closing mechanism of the present invention when closing functor soon and triping.
Fig. 5 is the state rearview of fast closing mechanism of the present invention when closing functor soon and triping.
Fig. 6 is a fast closing mechanism closure state schematic diagram of the present invention.
Fig. 7 is an overall schematic under the fast closing mechanism user mode of the present invention.
Embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
As Fig. 1～shown in Figure 7, present embodiment comprises: shell 1, handle 2, connecting rod 3, tripping part 4, lever 5 (protruding 5a), moving contact 6 (protruding 6a, groove 6b), snap close piece 7, main shaft 8, pivot pin 9, contact pressure spring 10, latch spring 11, energy-stored spring 12, fixed contact 13 (with a hard electric conductor welding), close functor 14 (boss 14a, elastic thin-wall 14b, sidewall 14c and through hole 14d) soon.
The present invention adopts handle 2 to be installed on the shell 1, and handle 2 is connected with connecting rod 3, and connecting rod 3 connects tripping part 4, and lever 5 is connected with the operating mechanism of circuit breaker with moving contact 6; Closing functor 14 soon is rotatably installed on the case for circuit breaker pedestal.Close functor 14 soon and be provided with a through hole 14d, can be closing soon on the axle that functor 14 is rotationally connected with shell 1 by this through hole, and close soon and also be provided with boss 14a, elastic thin-wall 14b, sidewall 14c etc. on the functor 14.
Moving contact 6 upper ends and lever 5 usefulness pivot pins 9 riveteds are integral, pivot pin 9 and moving contact 6 tight fits, pivot pin 9 and lever 5 matched in clearance, the middle part of lever 5 is articulated on the main shaft 8, moving contact 6 and lever 5 are fastenedly connected by contact pressure spring 10,10 one-tenth U types of contact pressure spring, an end symmetry are connected on two ears on lever 5 tops, and the other end is connected on the moving contact 6 groove 6b.
Moving contact 6 is close to lever 5 under the effect of contact pressure spring 10, and can rotate around main shaft 8 with lever 5; Latch spring 11 is installed on the boss with the concentric snap close piece 7 of main shaft 8, and an end rides on the hook 7a of snap close piece 7, and an end is carried on same the picking up the ears on bar thick stick 5 tops; Energy-stored spring 12 is extension springs, and an end is carried on the protruding 5b of bar thick stick 5, and an end is carried on (axle is fixed with shell, and is not shown) of shell 1.
Moving contact 6 is provided with protruding 6a, closes boss 14a on the functor 14 and the protruding 6a on the moving contact 6 soon and can snap close links together and stop moving contact 6 motions.
The thin-walled 14b that closes functor 14 soon has certain elasticity, can make to close functor 14 soon and automatically reset.
Motion process of the present invention is such: actuating handle 2 counterclockwise rotates, lever 5 clockwise directions are rotated, moving contact 6 rotates around main shaft 8 with lever 5 during beginning, when moving contact 6 forwards certain position to, position as shown in Figure 3, the boss 14a locking that the protruding 6a on the moving contact 6 is closed on the functor 14 soon temporarily no longer travels forward; When continuation actuating handle 2 counter clockwise directions were rotated, it is motionless that moving contact keeps substantially, and lever 5 continues clockwise directions and rotates, and the protruding 5a of lever 5 belows begins to contact the sidewall 14c that closes soon on the functor 14, and promote to close soon functor 14 counter clockwise direction rotations; When closing functor soon and counterclockwise turn to Fig. 4 and position shown in Figure 5, close boss 14a on the functor 14 soon and can not fasten protruding 6a on the moving contact 6 again, at this moment, moving contact 6 is released, moving contact 6 under the effect of contact pressure spring 10 fast clockwise direction rotate and with fixed contact 13 closures, realize the quick-make of moving contact 6 and fixed contact 13; Close functor 14 soon and under the promotion of lever 5, keep certain distance with moving contact 6, in order to avoid moving contact 6 heat radiations in the influence conduction, as shown in Figure 6.
After miniature circuit breaker was threaded off, moving contact 6 and lever 5 be to open position motion (position as shown in Figure 2), closes functor 14 soon and no longer be subjected to the promotion of lever 5 and reset under the effect of self elasticity position 14b.
Claims (6)
1, a kind of fast closing mechanism of miniature circuit breaker, adopt handle (2) to be installed on the shell (1), handle (2) is connected with connecting rod (3), moving contact (6) upper end is integral with pivot pin (9) riveted with lever (5), the middle part of lever (5) is articulated on the main shaft (8), moving contact (6) and lever (5) are fastenedly connected by contact pressure spring (10), latch spring (11) is installed on the boss with the concentric snap close piece (7) of main shaft (8), and lever (5) is connected with the operating mechanism of circuit breaker with moving contact (6); Closing functor (14) soon is rotatably installed on the case for circuit breaker pedestal; It is characterized in that: described moving contact (6) with close functor (14) snap close soon and be connected.
2, the fast closing mechanism of miniature circuit breaker according to claim 1 is characterized in that the described functor (14) that closes soon is provided with boss (14a), elastic thin-wall (14b), sidewall (14c) and through hole (14d);
3, the fast closing mechanism of miniature circuit breaker according to claim 1 is characterized in that described moving contact (6) is provided with projection (6a);
4, the fast closing mechanism of miniature circuit breaker according to claim 1 is characterized in that described lever (5) lower end is provided with a projection (5a);
5, the fast closing mechanism of miniature circuit breaker according to claim 2 is characterized in that described boss (14a) is connected with projection (6a) snap close.
6, the fast closing mechanism of miniature circuit breaker according to claim 2 is characterized in that being provided with in the described through hole (14d) axle and passes through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100215008A CN101335162A (en) | 2008-08-05 | 2008-08-05 | Fast closing mechanism of small circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100215008A CN101335162A (en) | 2008-08-05 | 2008-08-05 | Fast closing mechanism of small circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101335162A true CN101335162A (en) | 2008-12-31 |
Family
ID=40197672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100215008A Pending CN101335162A (en) | 2008-08-05 | 2008-08-05 | Fast closing mechanism of small circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101335162A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050343A (en) * | 2011-10-14 | 2013-04-17 | 上海电科电器科技有限公司 | Rapid switching-on mechanism |
| CN107039216A (en) * | 2017-06-19 | 2017-08-11 | 厦门宏发开关设备有限公司 | A kind of residual current action breaker fast closing mechanism |
| CN107452566A (en) * | 2016-06-01 | 2017-12-08 | 浙江正泰电器股份有限公司 | The releasing structure of breaker |
-
2008
- 2008-08-05 CN CNA2008100215008A patent/CN101335162A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050343A (en) * | 2011-10-14 | 2013-04-17 | 上海电科电器科技有限公司 | Rapid switching-on mechanism |
| WO2013053308A1 (en) * | 2011-10-14 | 2013-04-18 | 上海电科电器科技有限公司 | Fast switching-on mechanism |
| CN103050343B (en) * | 2011-10-14 | 2015-12-16 | 上海电科电器科技有限公司 | Rapid switching-on mechanism |
| US9355799B2 (en) | 2011-10-14 | 2016-05-31 | Seari Electric Technology Co., Ltd. | Fast closing mechanism |
| RU2615982C2 (en) * | 2011-10-14 | 2017-04-12 | Сэари Электрик Технолоджи Ко., Лтд | Fast switching mechanism |
| CN107452566A (en) * | 2016-06-01 | 2017-12-08 | 浙江正泰电器股份有限公司 | The releasing structure of breaker |
| CN107039216A (en) * | 2017-06-19 | 2017-08-11 | 厦门宏发开关设备有限公司 | A kind of residual current action breaker fast closing mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081231 |