CN1044051C - Distribution circuit breakers - Google Patents
Distribution circuit breakers Download PDFInfo
- Publication number
- CN1044051C CN1044051C CN96108351A CN96108351A CN1044051C CN 1044051 C CN1044051 C CN 1044051C CN 96108351 A CN96108351 A CN 96108351A CN 96108351 A CN96108351 A CN 96108351A CN 1044051 C CN1044051 C CN 1044051C
- Authority
- CN
- China
- Prior art keywords
- arc plate
- twisted wire
- leading
- distributor breaker
- lead
- 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/06—Housings; Casings; Bases; Mountings
Landscapes
- Breakers (AREA)
Abstract
To prevent a stranded wire from being cut by being sandwiched in a mechanism part by pressing down the stranded wire constituting a cable way by a conductive plate for an arc current passage fixed to a case. An almost central part of a stranded wire 3 to connect a movable contactor 1 and bimetal 2 or the like to each other, is hookingly engaged with an engaging part 9 formed on a conductive plate 7 for an arc current passage. Therefore, when the contactor 1 performs opening-closing operation, the stranded wire 3 can be prevented from being cut by being sandwiched in a cradle or the like constituting a mechanism part. Since connection of the conductive plate 7 and a terminal 10 can be performed by the stranded wire 3, an incorporating structure of the conductive plate 7 can be simplified.
Description
The present invention relates to have be used for making movable contact respectively with the improvement of the distributor breaker of the twisted wire that connects such as fixed parts such as bimetal leafs.
Twisted wire parts as power circuit in distributor breaker are widely used.For example, in Fig. 9 (a) and double circuit breaker shown in Figure 10, be used for making the activity of being installed in to refer to that the moving contact 8 on 1 loosely stretches in each loop with the flexible twisted wire 3 that connects such as the such fixed part of bimetal leaf 2.Yet, when referring to that movable under the operations such as the disconnection of distributor breaker and closure 1 such twisted wire 3 during to bimetal leaf 2 displacements is upwards pushed away and is configured easily the framework 17 of mechanical part etc. and runs into.Twisted wire 3 by such scratching impaired so that easily circuit breaker repeat disconnect and closed procedure after rupture.
The objective of the invention is to solve above-mentioned problems of the prior art, provide the twisted wire that can prevent forming circuit by distributor breaker in the mechanical part scratching.
For this reason, the invention provides a kind of distributor breaker, comprise housing at least, the activity with moving contact in the described housing of being arranged in refers to, with described activity refer to the handle that links to each other and at one end with described moving contact or described activity refer to link to each other twisted wire with forming circuit; Comprise that is further led a lonely plate, thus described twisted wire by this lead the arc plate fix carry out ON/OFF when operation at described handle can be at the mechanical part of switch by scratching.
In distributor breaker according to an embodiment of the invention, be used for making moving contact or the movable wiring parts that on housing, form with the twisted wire that connects such as fixed parts such as bimetal leafs that refer to fix, thereby prevent twisted wire at mechanical part by scratching.
In addition, in distributor breaker according to another embodiment of the present invention, thereby the twisted wire of forming circuit can be placed in housing and lead lay prevent in the space of determining between the parts twisted wire at mechanical part by scratching.The twisted wire of forming circuit also can be placed between housing and the lead Lock Part.By the way, lead is laid parts and can be allowed also as leading the arc plate.
Lead constraint parts can provide being fixed on leading on the arc plate on the housing.
According to the abovementioned embodiments of the present invention, fixed because twisted wire can lead arc plate or lead constraint parts respectively, the twisted wire of forming circuit can prevent at mechanical part by scratching, thereby can avoid the possibility that ruptures.According to the present invention, owing to lead the arc plate and be connected by twisted wire, be used for and lead the arc structure of closing that hardens and can be simplified with terminal, this is favourable.
In addition, also has the advantage that the total of distributor breaker can be simplified being fixed on the embodiment that leads the arc plate lead constraint parts are provided on the housing.Simultaneously, in being placed in embodiment in the space between housing and the lead constraint parts, the twisted wire of forming circuit has the advantage that is easy to lay twisted wire and is easy to install distributor breaker.
In the present invention, lead the arc plate and have restraint device, and twisted wire is placed in the middle part of this restraint device substantially.Therefore, twisted wire can prevent to refer to carry out the scratching that disconnects and be configured mechanical part support etc. during closed procedure in activity.Therefore incident twisted wire fracture just can be avoided in conventional distributor breaker.
Lead arc plate and line joint Terminal and be electrically connected and further improve the characteristic of cut-offfing of circuit breaker by making.Correspondingly, the upper part of leading the arc plate of prior art distributor breaker protrudes upward, and is fixed by one group of screw.According to the present invention, owing to lead the arc plate and the line joint Terminal is linked together mutually by twisted wire, so electric connection will be only by leading the arc plate attached to just very firm on the housing.Therefore, distributor breaker according to the present invention has the advantage of the accessory structure of complexity required in the needs prior art distributor breaker not.
Being considered to novel feature of the present invention specifically determines in the claim of back.By with reference to below in conjunction with the description of accompanying drawing, can best understanding be arranged to the present invention and purpose thereof and characteristics to most preferred embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the sectional view according to the distributor breaker of one embodiment of the invention;
Fig. 2 is the perspective view that is used for fixing the twisted wire restraint device of twisted wire in the expression distributor breaker shown in Figure 1;
Fig. 3 is the perspective view of a change of the twisted wire restraint device in the expression distributor breaker shown in Figure 1;
Fig. 4 is the perspective view of another change of the twisted wire restraint device in the expression distributor breaker shown in Figure 1;
Fig. 5 is the sectional view of distributor breaker according to a second embodiment of the present invention, and wherein twisted wire is placed in lead and lays between parts and the housing sidewall in the space of determining;
Fig. 6 is the sectional view of distributor breaker from seeing with vertical direction shown in Figure 5 according to a second embodiment of the present invention;
Fig. 7 (a) and 7 (b) are the perspective views that lead that expression lays respectively at the left side of center wall and right side is laid parts;
Fig. 8 is the sectional view according to distributor breaker of the present invention, wherein leads the arc plate and has integrally formed with it instantaneous tripping operation yoke;
Fig. 9 (a) and 9 (b) are the sectional views of expression prior art distributor breaker; And
Figure 10 is the sectional view of the prior art distributor breaker seen from the direction vertical with Fig. 9 (a).
Below with reference to accompanying drawings the distributor breaker according to most preferred embodiment of the present invention is introduced in more detail.It should be noted that structure of the present invention has same effect when being used to single loop circuit breaker or multiloop circuit breaker.
At first see figures.1.and.2 the distributor breaker according to the first embodiment of the present invention is introduced.
According to the distributor breaker of the first embodiment of the present invention comprise that the activity with moving contact 8 refers to 1, bimetal leaf 2 with make moving contact 8 or movablely refer to the 1 flexible twisted wire 3 that links to each other with bimetal leaf 2, they all are positioned at housing 6.Thereby loosely stretching, twisted wire 3 can the obstruction activity not refer to 1 open and close action.
Leading the bottom of lonely plate 4 from fixed contact 5 sides along housing 6 extends.
Another be substantially L shaped lead arc plate 7 be positioned at lead arc plate 4 the top with parallel with it.Leading arc plate 4,7 works to be absorbed in the moving contact 8 that the activity of being attached to refers to 1 end portion and is drawn back the electric arc that is constantly discharged from fixed contact 5.Lead arc plate 7 and have restraint device shown in Figure 29, and twisted wire 3 is fixed on middle substantially by this restraint device 9.
Be positioned at such position ideally leading on the lonely plate 7 restraint device 9 that forms: flow through the arc current of leading arc plate 7 and to flow through the arc current of leading arc plate 4 opposite, shown in the arrow among Fig. 1.In this embodiment, restraint device 9 refers to that in the close activity of leading arc plate 71 end forms.In such structure,, can improve arc voltage effectively and cut-off characteristic because electric arc passes respectively and flow along leading arc plate 4,7.Lead arc plate 7 and can make arc voltage cut-off characteristic to obtain bigger improvement by adopting by what make such as the so high resistive material of nichrome (nichrome).
Below with reference to Fig. 3 and Fig. 4 other examples according to the restraint device of the first embodiment of the present invention are introduced.In these examples, thus twisted wire 3 by from the constraint parts 13,14 of the inner wall surface projection of housing 6 or 15 basic fixed at the middle twisted wire 3 that prevents by in the mechanical part scratching.Restraint device shown in Figure 3 comprise from a sidewall of housing 6 inwardly stretch out as the pair of pin of lead constraint parts 13 and the rib shape lead constraint parts 14 that inwardly stretch out from the relative sidewall of housing 6 near lead constraint parts 13, and twisted wire 3 is supported between these leads constraint parts 13,14.Simultaneously, restraint device shown in Figure 4 fetters parts 15 for the lead with semi-circular cross section that the inner wall surface at housing 6 provides.Lead constraint parts 13,14,15 can with housing 6 integral casts, can be not and housing 6 integral casts yet.Yet Fig. 3 or lead constraint parts shown in Figure 4 can be implemented separately also can cooperate enforcement with restraint device 9 shown in Figure 2.
Below with reference to Fig. 5 to Fig. 7 according to a second embodiment of the present invention distributor breaker is introduced.At Fig. 5 to second embodiment shown in Figure 7, the present invention is embodied between the two side of housing 6 to have in the bipolar distributor breaker of a center wall 18, be furnished with in each space of between the sidewall of center wall 18 and housing 6, determining wherein that the activity with moving contact 8 refers to 1, bimetal leaf 2 be connected activity and refer to 1 and the flexible twisted wire 3 of bimetal leaf 2.Notice that herein twisted wire refers to that in the activity of being made by electric conducting material the end portion of 1 side plate is attached thereto.Thereby loosely stretching respectively, twisted wire 3 can the obstruction activity not refer to 1 open and close action.
In this embodiment, leading arc plate 7 is arranged in parallel with the arc plate 4 of leading that extends along the bottom of housing 6.Lead arc plate 7 by in first embodiment, adopt L shaped lead on the arc plate 7 vertical with it and be basically parallel to its horizontal part extend a bit and then be basically parallel to its vertical member and extend and form, thereby constituted is that plane lead is laid parts 16 basically, shown in Fig. 7 (a) and 7 (b).
Be arranged in the loop in left side at Fig. 6 and 7 (a), thereby lay in the space of determining between parts 16 and the center wall 18 and prevent that twisted wire 3 is configured the support or the scratching of miscellaneous part institute of mechanical part near that part of lead that is placed in of the twisted wire 3 of bimetal leaf 2.Simultaneously, be arranged in the loop on right side at Fig. 6 and 7 (b), thus near the twisted wire 3 of bimetal leaf 2 that part of be placed in lead lay prevent in the space of determining between the sidewall of parts 16 and housing 6 twisted wire 3 in mechanical part framework 17 and miscellaneous part between institute's scratching.Although in this embodiment with different poles cooperate to have the structure of leading arc plate 7 that lead lays parts 16 respectively be identical, they also can adopt different structures, for example can suppose that they are arranged in every side of center wall 18 symmetrically, twisted wire 3 just can all be disposed in center wall 18 sides shown in Fig. 7 (a) like this.
Equally, though in the foregoing description lead to lay parts 16 be with to lead arc plate 7 integrally formed, it also can with housing 6 whole formation.
Form with instantaneous tripping operation yoke 12 integral body if having the arc plate 7 of leading of the restraint device 9 that is used for fixing twisted wire 3, as shown in Figure 8, number of components can reduce, and the structure of distributor breaker can further be simplified.This not only is easy to component-assembled but also can reduces step on the assembly line.
Introduce as top, according to the present invention, the twisted wire that can prevent forming circuit by scratching, thereby can be avoided the fracture of twisted wire at mechanical part.In addition, led in the fixing structure of arc plate according to of the present invention at twisted wire, the structure of whole distributor breaker can advantageously be simplified.
In addition, according to the present invention, lay between parts and the center wall and/or lead is laid between the sidewall of parts and housing in the determined space because twisted wire is placed in lead, can prevent that the twisted wire of forming circuit is configured the support or the miscellaneous part scratching of mechanical part, thereby can avoid the damage of twisted wire.In addition, thus moving through of twisted wire adopts that housing is controlled is convenient to lay twisted wire and assembling distributor breaker.Therefore, can give and overcome that the distributor breaker according to the present invention of intrinsic problem has high value in the prior art.Although only introduced two embodiment of the present invention here, this area professional should know that the present invention can not deviate from the spirit or scope of invention with many other forms enforcements.Therefore, it is indicative rather than restrictive that these examples and embodiment should be considered to, and the present invention is not limited to detailed introduction given here, and can make amendment in the scope of following claim.
Claims (10)
1. distributor breaker, comprise housing at least, the activity with moving contact in the described housing of being arranged in refers to, with described activity refer to the handle that links to each other and at one end with described moving contact or described activity refer to link to each other twisted wire with forming circuit; It is characterized in that, comprise that is further led a lonely plate, thus described twisted wire by this lead the arc plate fix carry out ON/OFF when operation at described handle can be at the mechanical part of switch by scratching.
2. according to the distributor breaker of claim 1, it is characterized in that the described arc plate of leading is fixed in the described housing, described twisted wire utilizes a restraint device to be fixed on described leading on the arc plate.
3. according to the distributor breaker of claim 2, it is characterized in that described restraint device is arranged on the described end that refers near described activity on the arc plate of leading.
4. according to any one distributor breaker among the claim 1-3, it is characterized in that the described arc plate of leading is made by the high resistive material such as a kind of nichrome.
5. according to any one distributor breaker among the claim 1-3, it is characterized in that, describedly lead lonely plate and have integrally formed with it instantaneous tripping operation yoke.
6. according to the distributor breaker of claim 1, it is characterized in that, the described arc plate of leading has a lead and lays parts (16), it extends vertically upward from the described arc plate of leading, and described twisted wire is placed in that described lead is laid between the sidewall of parts and described housing and/or lays between parts and the described housing center wall (18) in the determined space at described lead.
7. according to the distributor breaker of claim 6, it is characterized in that the described arc plate of leading is made by the high resistive material such as a kind of nichrome.
8. according to the distributor breaker of claim 6, it is characterized in that the described arc plate of leading has integrally formed with it instantaneous tripping operation yoke.
9. according to any one distributor breaker among the claim 1-3,6,7, it is characterized in that also comprise another constraint part (13,15), it is arranged on the inner wall surface of described housing.
10. according to any one distributor breaker among the claim 1-3,6,7,8, it is characterized in that another constraint part (13,15) is arranged on the surface of the center wall in the described housing.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7158903A JP2721818B2 (en) | 1995-06-26 | 1995-06-26 | Circuit breaker for wiring |
| JP158903/95 | 1995-06-26 | ||
| JP8008430A JP2891664B2 (en) | 1996-01-22 | 1996-01-22 | Circuit breaker for wiring |
| JP8430/96 | 1996-01-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1144970A CN1144970A (en) | 1997-03-12 |
| CN1044051C true CN1044051C (en) | 1999-07-07 |
Family
ID=26342944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96108351A Expired - Fee Related CN1044051C (en) | 1995-06-26 | 1996-06-25 | Distribution circuit breakers |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100202070B1 (en) |
| CN (1) | CN1044051C (en) |
| TW (1) | TW340949B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0414347U (en) * | 1990-05-28 | 1992-02-05 | ||
| US5250918A (en) * | 1992-05-05 | 1993-10-05 | Square D Company | Automatic miniature circuit breaker with Z-axis assemblage current response mechanism |
-
1996
- 1996-04-24 TW TW085104909A patent/TW340949B/en active
- 1996-05-28 KR KR1019960018331A patent/KR100202070B1/en not_active IP Right Cessation
- 1996-06-25 CN CN96108351A patent/CN1044051C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0414347U (en) * | 1990-05-28 | 1992-02-05 | ||
| US5250918A (en) * | 1992-05-05 | 1993-10-05 | Square D Company | Automatic miniature circuit breaker with Z-axis assemblage current response mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100202070B1 (en) | 1999-06-15 |
| KR970003324A (en) | 1997-01-28 |
| CN1144970A (en) | 1997-03-12 |
| TW340949B (en) | 1998-09-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |