CN101335161A - Simple operation mechanism for circuit cutter - Google Patents
Simple operation mechanism for circuit cutter Download PDFInfo
- Publication number
- CN101335161A CN101335161A CNA2008100214999A CN200810021499A CN101335161A CN 101335161 A CN101335161 A CN 101335161A CN A2008100214999 A CNA2008100214999 A CN A2008100214999A CN 200810021499 A CN200810021499 A CN 200810021499A CN 101335161 A CN101335161 A CN 101335161A
- Authority
- CN
- China
- Prior art keywords
- hole
- moving contact
- main shaft
- shell
- contact
- 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.)
- Pending
Links
Images
Landscapes
- Breakers (AREA)
Abstract
The invention relates to an operation mechanism of a breaker, which mainly adopts a shell that is internally provided with a handle, a jumping fastener, a moving contact, a locking component and a main shaft; the main shaft is fixedly arranged on the shell; the locking component is connected on the main shaft; the jumping fastener is articulated with the handle through a U-shaped link rod; the mechanism of the invention is characterized in that the moving contact is articulated with the jumping fastener through a shaft pin; one end of a contact reaction spring is connected on the shell, and the other end is connected on the moving contact; a releasing offsetting spring is arranged on the bulge of the locking component sharing the same circle center with the shaft; one end of the releasing offsetting spring is hung on the contact reaction spring, and the other end is hung on a hook of the locking component. The mechanism of the invention has simple, compact and reasonable structure, and leads to a small motion error of the position of the moving contact and part reduction and cost lowering. Simultaneously, the linear velocity when the moving contact is disconnected can be increased. By adopting the operation handle, power-on and power-off of the breaker can be realized; through the operation locking component, a releasing mechanism can be released freely so as to realize power-on and power-off.
Description
Technical field
The present invention relates to a kind of ease of Use mechanism of circuit breaker, the operating mechanism that specifically has the miniature circuit breaker of free tripping mechanism, the free tripping mechanism between its handle and the moving contact snap close position between tripping part and snap close piece can throw off mechanism by release.
Background technology
At present, miniature circuit breaker mainly is to be used for substituting fuse protecting device.Miniature circuit breaker is that a class has switch lock, the magnetic of holding concurrently is threaded off protection and the switch of heat dropout protection; When short circuit current produced, magnetic was threaded off and is protected actuating mechanism instantaneous switch lock of untiing of rapid movement under powerful electromagnetic force effect, and switch disconnects, and line current cuts off; When the circuit adstante febre, the bimetallic thermal overload release is untied switch lock, and switch disconnects, and line current cuts off.
In prior art, as application (patent) number: 93108067.3 miniature circuit breaker (automatic switch), its operating means is mainly formed free tripping mechanism by handle, lever, tripping part, U type bar and snap close piece, adopt moving contact to be connected indirectly by a lever with operator link mechanism, its combination all makes the kinematic error at moving contact place increase because of connecting indirectly, thereby for guaranteeing that contact pressure need improve the accuracy of manufacture of part.Therefore, the accuracy of manufacture height of mechanism element in prior art, part is more, and cost is higher.Simultaneously,, reduced mechanism and driven moving contact movement velocity, the linear velocity when particularly beginning to move, limited breaking capacity from this meaning also because of moving contact is connected by a lever indirectly with operator link mechanism.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby provide a kind of kinematic error at moving contact place that can make little, the part number reduces, and cost reduces; Linear velocity in the time of can improving simultaneously the moving contact disconnection, and the ease of Use mechanism that easily realizes the more rational a kind of circuit breaker of trip free and contact configuration.
According to technical scheme provided by the invention, it mainly adopts handle (expose the operating side), tripping part, moving contact, snap close piece, main shaft and pivot pin is set in the enclosure, main shaft is fixed on the shell, snap close piece is connected on the main shaft, the tripping part is hinged by U-shaped connecting rod and handle, the drop-away reset spring is installed on the projection with the concentric snap close piece of main shaft, and an end hangs on the hook of snap close piece; Feature is that described moving contact is hinged by pivot pin and tripping part; The contact reaction spring be installed in concentric shell one cylindrical end tangs of main shaft on, an end hangs on another boss of shell, the other end hangs on the moving contact; Drop-away reset spring one end hangs on the contact reaction spring.
Be respectively equipped with three through holes on the described moving contact, one of them through hole is between two through holes.A described through hole be shaped as waist shape.
Described contact reaction spring is that arc surface contacts with through hole.
Described contact reaction spring one end is provided with a hook, and an end of drop-away reset spring hangs on the hook of contact reaction spring.
The boss of described shell is shaped as cylindrical, is provided with a concentric circular hole in the boss, and main shaft is installed in the concentric circle holes.
Compared with the prior art the present invention has the following advantages:
The present invention is simple, compact and reasonable for structure; Can make the kinematic error at moving contact place little, the part number reduces, and cost reduces, the linear velocity in the time of can improving the moving contact disconnection simultaneously; Can realize the break-make of circuit breaker by operating grip, free tripping mechanism is threaded off, realize break-make by the operable lock fastener.
Description of drawings
Fig. 1 is an open position schematic diagram in the enclosure under the user mode of the present invention.
Fig. 2 is in the enclosure a make position schematic diagram under the user mode of the present invention.
Fig. 3 is a structure division exploded view of the present invention.
Fig. 4 is a structure user mode lower casing schematic diagram of the present invention.
Embodiment
As Fig. 1～shown in Figure 4, comprise shell 1 (comprising 1a, 1b, 1c, 1d), handle 2, U-shaped connecting rod 3, tripping part 4 (comprising through hole 4a), moving contact 6 (comprising through hole 6a, through hole 6b, through hole 6c), snap close piece 7 (comprising hook 7a), main shaft 8, pivot pin 9, contact reaction spring 10 (comprising hook 10a), drop-away reset spring 11, fixed contact 13 etc.
As Fig. 1, Fig. 2, shown in Figure 3, for being contained in the mechanism in the miniature circuit breaker shell, (shell another part does not draw) is equipped with snap close piece 7, tripping part 4, moving contact 6 and is fixed on the shell 1 and moving contact 6 corresponding fixed contacts 13 (fixed contact 13 is welded on the hard electric conductor, and is fixed on it on the shell 1) in shell 1; The U-shaped connecting rod 3 that is installed in the handle 2 on the shell 1 and handle 2 and free tripping mechanism are coupled together; Tripping part 4 is hinged by U-shaped connecting rod 3 and handle 2.Tripping part 4, moving contact 6 usefulness pivot pins 9 are hinged, pivot pin 9 and moving contact 6 tight fits, and with tripping part 4 matched in clearance, each part is free to rotate each other behind the riveted; 8 connections of snap close piece 7 usefulness main shafts are through together, and are free to rotate each other.
Snap close piece 7 is a notching construction, and the middle part is provided with a through hole, and moving contact 6 is provided with through hole 6a, is rotationally connected with on the main shaft 8 by this two hole, and main shaft 8 is fixed on the shell 1, and moving contact 6 is positioned in the middle of the fluting of snap close piece 7; Be provided with a through hole 6c in the upper end of moving contact 6, tripping part 4 is provided with through hole 4a, passes pivot pin 9 at moving contact 6 upper end through hole 6c and tripping part 4 one end through hole 4a, and is hinged tripping part 4 and moving contact 6; Tripping part 4 can lock together with the upper end of snap close piece 7; Connect on the snap close piece 7 a drop-away reset spring 11 is housed, drop-away reset spring 11 is installed on the projection with the concentric snap close piece 7 of main shaft 8, and an end hangs on the hook 10a of contact reaction spring 10, and the other end hangs on the hook 7a of snap close piece 7; Under the effect of drop-away reset spring 11, snap close piece 7 clockwise directions rotate to the direction of tripping part 4, are provided with projection in the place of tripping part 4 close snap close pieces 7, and projection can limit the amount that snap close piece 7 rotates, and makes the fastener amount of tripping part 4 and snap close piece 7 suitable.
As shown in Figure 4, be provided with another through hole 6b between the through hole 6a of described moving contact 6 and the through hole 6c, through hole 6a is shaped as waist shape; Shell 1 is provided with boss 1a, and boss 1a is shaped as cylindrical, is provided with a concentric circular hole 1b in the boss 1a, and main shaft 8 is fixed on (another shell is corresponding therewith, does not draw) on the shell by circular hole 1b; Establish a boss 1c on the shell 1 in addition; Contact reaction spring 10 is installed on the boss 1a, and hook 10a place end passes through hole 6b and is affiliated on moving contact 6, and the other end is affiliated on the boss 1c of shell 1.
The axle 1d that handle 2 is directly installed on shell 1 goes up on (also can be the another one part), and U-shaped connecting rod 3 is connected tripping part 4 by the through hole 4a of tripping part 4 with handle 2.
When operating grip 2 when on-position rotates, transmission by U-shaped connecting rod 3, promoting free tripping mechanism and moving contact rotates around main shaft 8 clockwise directions, when moving contact 6 moves to when contacting with fixed contact 13, moving contact 6 just can not travel forward with fixed contact 13 position contacting under the stopping of fixed contact 13 again, this moment is when handle 2 travels forward again, tripping part 4 waits other mechanism's parts to continue clockwise direction and rotates, moving contact 6 then from clockwise rotate around main shaft 8 become with fixed contact 13 contact points be that the center of circle clockwise rotates, moving contact 6 leaves main shaft 8, contact reaction spring 10 distortion counter-forces are forwarded on the fixed contact 13, so the contact pressure between dynamic/static contact is increased suddenly from main shaft 8 by moving contact 6; Handle 2 travels forward until closure again, and contact pressure that moving contact 6 and fixed contact are 13 continues to increase, and until the contact pressure that satisfies design, and this section moving contact 6 should rotate and moving virtual stroke is exactly the excess of stroke.
When operating grip 2 round about, above-mentioned action is opposite, is opening operation.
Under the normal condition, tripping part 4 and snap close piece 7 are locked, and can drive moving contact 6 motions by operating grip, realize the make-break operation of circuit breaker; When fault takes place, be that overcurrent or short circuit all can produce an external force and act on the snap close piece 7, make snap close piece 7 motion counterclockwise, thereby the button between tripping part 4 and the snap close piece 7 is unclamped, tripping part 4 clockwise directions rotate, moving contact 6 counterclockwise rotates under the effect of contact reaction spring 10, the final open position that arrives as shown in Figure 1.
Claims (7)
1, a kind of ease of Use mechanism of circuit breaker, it mainly adopts handle (2), tripping part (4), moving contact (6), snap close piece (7), main shaft (8) and pivot pin (9) is set in shell (1), main shaft (8) is fixed on the shell (1), snap close piece (7) is connected on the main shaft (8), tripping part (4) is hinged by U-shaped connecting rod (3) and handle (2), drop-away reset spring (11) is installed on the projection with the concentric snap close piece (7) of main shaft (8), and an end hangs on the hook (7a) of snap close piece; It is characterized in that: described moving contact (6) is hinged by pivot pin (9) and tripping part (4); Contact reaction spring (10) is installed on the boss (1a) of shell (1), and an end hangs on another boss (1c) of shell, and the other end hangs on the moving contact (6); Drop-away reset spring (11) one ends hang on the contact reaction spring (10).
2, the ease of Use mechanism of a kind of circuit breaker according to claim 1 is characterized in that described moving contact (6) is provided with through hole (6a), through hole (6b) and through hole (6c), and through hole (6b) is positioned between through hole (6a) and the through hole (6c).
3, the ease of Use mechanism of a kind of circuit breaker according to claim 1 is characterized in that described pivot pin (9) passes through hole (6c), and main shaft (8) passes through hole (6a), and contact reaction spring (10) passes through hole (6b).
4, according to the ease of Use mechanism of claim 2 or 3 described a kind of circuit breakers, what it is characterized in that described through hole (6a) is shaped as waist shape.
5,, it is characterized in that described contact reaction spring (10) contacts for arc surface with through hole (6b) according to the ease of Use mechanism of claim 1 or 3 described a kind of circuit breakers.
6, the ease of Use mechanism of a kind of circuit breaker according to claim 1, it is characterized in that described contact reaction spring (10) one ends are provided with a hook (10a), an end of drop-away reset spring (11) hangs on the hook (10a) of contact reaction spring (10).
7, the ease of Use mechanism of a kind of circuit breaker according to claim 1, the boss (1a) that it is characterized in that described shell (1) is shaped as cylindrical, is provided with a concentric circular hole (1b) in the boss (1a), and main shaft (8) is installed in the concentric circle holes (1b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100214999A CN101335161A (en) | 2008-08-05 | 2008-08-05 | Simple operation mechanism for circuit cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100214999A CN101335161A (en) | 2008-08-05 | 2008-08-05 | Simple operation mechanism for circuit cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101335161A true CN101335161A (en) | 2008-12-31 |
Family
ID=40197671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100214999A Pending CN101335161A (en) | 2008-08-05 | 2008-08-05 | Simple operation mechanism for circuit cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101335161A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021749A (en) * | 2012-12-28 | 2013-04-03 | 常熟开关制造有限公司(原常熟开关厂） | Circuit breaker capable of quickly releasing |
| CN104517783A (en) * | 2014-12-15 | 2015-04-15 | 常熟开关制造有限公司(原常熟开关厂） | Operating mechanism of low-voltage circuit breaker |
| CN113539759A (en) * | 2020-04-20 | 2021-10-22 | 施耐德电气（中国）有限公司 | Breaker and 5G power distribution cabinet with same |
-
2008
- 2008-08-05 CN CNA2008100214999A patent/CN101335161A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021749A (en) * | 2012-12-28 | 2013-04-03 | 常熟开关制造有限公司(原常熟开关厂） | Circuit breaker capable of quickly releasing |
| CN103021749B (en) * | 2012-12-28 | 2015-01-07 | 常熟开关制造有限公司(原常熟开关厂） | Circuit breaker capable of quickly releasing |
| CN104517783A (en) * | 2014-12-15 | 2015-04-15 | 常熟开关制造有限公司(原常熟开关厂） | Operating mechanism of low-voltage circuit breaker |
| CN104517783B (en) * | 2014-12-15 | 2016-09-14 | 常熟开关制造有限公司(原常熟开关厂） | A kind of operating mechanism of low-voltage circuit breaker |
| CN113539759A (en) * | 2020-04-20 | 2021-10-22 | 施耐德电气（中国）有限公司 | Breaker and 5G power distribution cabinet with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1327625C (en) | Operating mechanism of a miniature electrical circuit breaker | |
| CN201238017Y (en) | Simple operation mechanism of breaker | |
| US6222143B1 (en) | Positive off toggle mechanism | |
| CN101335161A (en) | Simple operation mechanism for circuit cutter | |
| CN101335163A (en) | Operating mechanism of automatically jumping small circuit breaker | |
| CN101170034A (en) | Small breaker | |
| CN101620956B (en) | Breaker with overcurrent self-locking function | |
| EP2107588B1 (en) | Circuit breaker | |
| CN201238019Y (en) | Free-tripping actuating mechanism of miniature circuit breaker | |
| CN107887236B (en) | Operating mechanism of miniature circuit breaker | |
| CN103021749B (en) | Circuit breaker capable of quickly releasing | |
| CN213936089U (en) | Small-sized circuit breaker | |
| CN212010870U (en) | Breaker and 5G power distribution cabinet with same | |
| WO2008049336A1 (en) | Circuit breaker for rapidly breaking low voltage circuit | |
| CN113078035A (en) | High-breaking miniature circuit breaker | |
| CN109659207B (en) | Resistance abrupt contact device and circuit breaker | |
| CN113539759A (en) | Breaker and 5G power distribution cabinet with same | |
| CN115101389B (en) | Magnetic trip alarm device of molded case circuit breaker | |
| JP5217019B2 (en) | Circuit breaker switching mechanism | |
| KR100643049B1 (en) | A load circuit braker | |
| CN209766342U (en) | DPN type circuit breaker | |
| CN201238020Y (en) | Free-tripping actuating mechanism of miniature circuit breaker | |
| CN215183813U (en) | High-breaking miniature circuit breaker | |
| CN103325632A (en) | Circuit breaker operating mechanism capable of tripping quickly | |
| CN101335164A (en) | Operation apparatus of automatically jumping small circuit breaker |
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 |