CN1174454C - Electrical circuit breaker with safety shield - Google Patents
Electrical circuit breaker with safety shield Download PDFInfo
- Publication number
- CN1174454C CN1174454C CNB971254893A CN97125489A CN1174454C CN 1174454 C CN1174454 C CN 1174454C CN B971254893 A CNB971254893 A CN B971254893A CN 97125489 A CN97125489 A CN 97125489A CN 1174454 C CN1174454 C CN 1174454C
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- casing
- cover
- compartment
- handle
- 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 - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
-
- 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
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H2009/305—Means for extinguishing or preventing arc between current-carrying parts including means for screening for arc gases as protection of mechanism against hot arc gases or for keeping arc gases in the arc chamber
Landscapes
- Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Circuit Breakers (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Abstract
An insulating casing is formed of two half-shells to make a number of compartments. The screen (48) is formed by two walls in the half-shells which extend from the front surface (28) to a projection (46) associated with an insulated support lever (34) for the moving contact (32) on one half-shell and to a pivoting plate (16) for the control mechanism (14) on the other. The two half-screens butt each other when the two halves are stuck together. Holes (22a, 24a) on either side receive connecting terminals. The arc extinction chamber lies in a compartment (38) below the intermediate compartment (36) for the electromagnetic circuit breaker and has an opening for the escape of cut-off gases after arc extinction.The present invention relates to a circuit breaker comprising an insulating casing provided with a shield (48) that is placed between a handle (18) rotary fundamental part (29) and an electromagnetic trigger central compartment (36) for preventing any escape of ionized gasses through the opening (27) of a front panel during arc extinction. The shield comprises a first separating part (44A) molded with a casing (10A) and a second separating part (44B) molded with a cover (10B). Said first and second parts abut on each another when the cover (10B) fits against the casing (10A). The first part (44A) extends between the front panel (28) and a projection (46) coupled with an insulated support lever (34) of a movable contact arm (32). In switched-off position, said projection communicates with the first part (44A) to achieve the shield (48) continuity. The other part (44B) of the cover (10B) is disposed between the front panel (28) and a control device (14) rotary support plate (16).
Description
The present invention relates to a kind of circuit breaker that places the casing of being made by moulded insulation, casing is cooperatively interacted on the horizontal plane of fit engagement face with the form of two and half shells by support and cover and constitutes, comprising:
One holds handle and the last compartment that has the operating mechanism of a pivot support plate, handle and operating mechanism drive a movable contact arm together, described handle highlights from casing by the opening of being located at front panel, and links to each other with support plate by a drive link on the other hand
The dimple that is provided with near the opposite flank of casing, in order to two binding posts to be installed,
One mid portion is divided into the following compartment that is used for the compartment that cooperates with electromagnetic tripping apparatus and holds arc control device,
One exhaust outlet is used for discharging gas when described arc control device generation arc extinguishing;
Exhaust outlet is located on the side of bottom panel or arc control device outlet usually.
Each compartment in the circuit breaker insulation case is not separate.If the high pressure in the interrupting short circuit, casing may increase the leakage by the ionized gas of handle openings, harm is near the personnel's of circuit breaker front panel safety.
The objective of the invention is to obtain a kind of circuit breaker, it is no matter the intensity size of turn-off current can both guarantee personnel's safety.
Be also subsidiaryly on the casing to be equipped with a baffle plate according to the characteristics of circuit breaker of the present invention, this baffle plate is located between the rotation base portion and middle compartment of handle, in order to prevent the opening ejection ionized gas by front panel in the arc extinguishing stage.
According to a preferred embodiment of the invention, baffle plate is by forming with molded first independent spacers of support with the molded second partition of cover, and described first and second dividing plates dock mutually when cover is fitted with support.
First dividing plate in front plate and with projection that the insulation supporter bar of movable contact arm links to each other between extend, described projection combines the continuity with the realization baffle plate with first dividing plate in the position that disconnects.The second partition of cover is located between the pivot support plate of front panel and operating mechanism.
Other advantage and characteristics will more clearly understand from the following explanation of the preferred embodiment of the present invention that provides as the indefiniteness example and show in the accompanying drawings, wherein:
Fig. 1 illustrates the perspective view of support in the casing, has held the operating mechanism of circuit breaker in the support;
Fig. 2 illustrates the perspective view of cover, and cover is designed to match to constitute insulation case with support among Fig. 1;
Fig. 3 is the front view of circuit breaker Fig. 1 when make position;
Fig. 4 is circuit breaker view identical with Fig. 3 when open position;
Fig. 5 is the view of support after circuit breaker is all installed;
Shown in Fig. 6 is the view of the cover that cooperates with support among Fig. 5.
With reference to figure 1 and Fig. 2, circuit breaker 10 places in the casing of being made by moulded insulation, and casing is made of with the assembly that the form of half shell complements each other to form on the horizontal plane that is fitted to each other face 12 following support 10A and top cover 10B.Support 10A (Fig. 1) supports operating mechanisms 14 with pivot support plate 16, and pivot support plate 16 links to each other with handle 18 by drive link 20.The inner face of support 10A is provided with a plurality of ribs or wall, cooperates in that casing is inner and determines a series of basic compartments thereby be designed to rib on the cover with adjacency.
The opposite flank of support 10A and cover 10B comprises dimple 22A, 22B; 24A, 24B are in order to install binding post. Longitudinal baffle 26A, 26B extend between the base portion of the base portion of support 10A and cover 10B to form the bottom of casing.
The mid portion of casing is divided in one compartment 36 and compartment 38 once, and middle compartment 36 designs match with the electromagnetic tripping apparatus (not shown), and following compartment 38 holds the arc control device (not shown). Porous wall 40A, 40B will descend compartment 38 to divide with dimple 22A, 22B and open, and cut-off gases is discharged from exhaust outlet 42A, 42B on the dividing plate 26A, the 26B that are located at base plate, and exhaust outlet 42A, 42B are relative with the opening 27 that holds handle 18 base portions 29.
The rotation base portion 29 of handle 18 separates with middle compartment 36 by a pair of stationary barrier 44A, 44B, and dividing plate 44A, 44B are molded with support 10A and cover 10B.The demarcation strip 44A that is connected on the support 10A extends between the projection 46 of plate 28 and cramp bar 34 in front.Another demarcation strip 44B that is connected on the cover 10B is located between the rotating support plate 16 of front panel 28 and mechanism.
When the circuit breaker assembly manipulation connects together support 10A and cover 10B at last, two stationary barrier 44A, 44B fit mutually, and cooperate with the projection 46 and the support plate 16 of cramp bar 34 respectively, thereby between the base portion 29 of middle compartment 36 and handle 18, form baffle plate 48 closely in open position.In arc control device in the arc extinction process, the existence of baffle plate 48 can prevent that the opening that ionized gas passes through front panel from outwards spraying.Can discharge whole cut-off gases by back plate exhaust outlet 42A, 42B at grade with insulation case.
The structure of baffle plate 48 when Fig. 3 and Fig. 4 illustrate the closed and disconnected state of circuit breaker 10:
Among Fig. 3, movable contact arm 32 is in the close position and is positioned at first end of travel position, promptly on the right of opening 27.The projection 46 of support plate 34 and the end of dividing plate 44A stay a space 50 from a distance between middle compartment 36 and handle base 29.When circuit breaker was in accident-free closure state, the existence in space 50 did not have problems.
If mechanism 14 threads off after detecting short circuit current, movable contact arm 32 separates with fixed contact, occurs an electric arc simultaneously, and it is eliminated ionization and extinguishes in the arc control device of following compartment 38.At the end (Fig. 4) that disconnects stroke, support plate 16 and cramp bar 34 have rotated counterclockwise a special angle and projection 46 overlaps with stationary barrier 44A relative positioning and with baffle plate 48.The disappearance in space 50 makes at 29 continuous baffle plates of formation of base portion of median septum 36 and handle 18, thereby prevents that ionized gas from passing through opening 27 ejaculations or the discharge of front panel.
Fig. 5 illustrates the structure that fits into the part of circuit breaker 10 behind the support 10A.Electromagnetic tripping apparatus 54 is located at middle compartment 36, and arc control device 56 are in compartment down with electric arc guide cheek 58.One end of electromagnetic tripping apparatus 54 coils links to each other with binding post 60 in being inserted in dimple 22A, and the other end of coil links to each other with fixed contact 62, and fixed contact 62 cooperates with movable contact arm 32.The latter is electrically connected with the bimetal leaf 64 of a thermal release device by a braid (not shown), and this bimetal leaf 64 is electrically connected with the binding post 66 that is arranged in opposite dimple 24A.
It should be noted that the baffle plate 46 that is formed by dividing plate 44B and projection 46 is inserted between the base portion 29 of electromagnetic tripping apparatus 54 and handle 18.
Fig. 6 shows the front view of cover 10B, and cover is designed to be fitted in support 10A and goes up to form the insulation crust of circuit breaker.Dividing plate 44B is located at middle compartment 36 and is equipped with between the last compartment 68 of handle 18 base portions.
Claims (6)
1. one kind places the circuit breaker in the casing of being made by moulded insulation, and described casing is cooperatively interacted on the horizontal plane of face and constitutes being fitted to each other with the form of two and half shells by support and cover, comprising:
One holds handle (18) and has the last compartment (68) of the operating mechanism (14) of a pivot support plate (16), handle (18) and operating mechanism (14) drive a movable contact arm (32) together, described handle (18) highlights from casing by the opening (27) of being located at front panel (28), and link to each other with support plate (16) by drive link (20) on the other hand
Dimple (22A, 22B that the opposite flank of close casing is provided with; 24A, 24B), in order to two binding posts (60,66) to be installed,
One mid portion is divided into compartment (36) that is used for installing electromagnetic tripping apparatus (54) and the following compartment (38) that holds arc control device (56),
And an exhaust outlet (42A, 42B), be used for when arc extinction takes place described arc control device (56), discharging cut-off gases,
It is characterized in that, have one on the casing and be located at the base portion (29) of handle (18) and the baffle plate (48) between the middle compartment (36), to prevent that ionized gas is by opening (27) ejection in the arc extinguishing process.
2. circuit breaker according to claim 1, it is characterized in that, baffle plate (48) is by forming with molded first dividing plate (44A) of support (10A) with the molded second partition (44B) of cover (10B), when support (10A) was fitted with cover (10B), described first and second dividing plates docked mutually.
3. circuit breaker according to claim 1, it is characterized in that, first dividing plate (44A) in front plate (28) and with projection (46) that the insulation supporter bar (34) of movable contact arm (32) links to each other between extend, described projection combines the continuity with acquisition baffle plate (48) with first dividing plate (44A) in the position that disconnects.
4. according to claim 2 or 3 described circuit breakers, it is characterized in that the second partition (44B) of cover (10B) is located between the pivot support plate (16) of front panel (28) and operating mechanism (14).
5. circuit breaker according to claim 1 is characterized in that, (42A 42B) is positioned at opening (27) opposite that holds handle (18) base portion (29) to exhaust outlet.
6. circuit breaker according to claim 4 is characterized in that, (42A 42B) is positioned at opening (27) opposite that holds handle (18) base portion (29) to exhaust outlet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9616151 | 1996-12-23 | ||
| FR9616151A FR2757675B1 (en) | 1996-12-23 | 1996-12-23 | ELECTRIC CIRCUIT BREAKER WITH SAFETY SCREEN |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1186320A CN1186320A (en) | 1998-07-01 |
| CN1174454C true CN1174454C (en) | 2004-11-03 |
Family
ID=9499248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB971254893A Expired - Lifetime CN1174454C (en) | 1996-12-23 | 1997-12-15 | Electrical circuit breaker with safety shield |
Country Status (13)
| Country | Link |
|---|---|
| CN (1) | CN1174454C (en) |
| AR (1) | AR008947A1 (en) |
| BR (1) | BR9706424A (en) |
| CZ (1) | CZ293169B6 (en) |
| EA (1) | EA000998B1 (en) |
| EG (1) | EG20952A (en) |
| FR (1) | FR2757675B1 (en) |
| HK (1) | HK1011893A1 (en) |
| HU (1) | HU221494B (en) |
| ID (1) | ID19224A (en) |
| MA (1) | MA24413A1 (en) |
| PL (1) | PL186158B1 (en) |
| TR (1) | TR199701676A3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101606290A (en) * | 2007-02-12 | 2009-12-16 | 立维腾制造有限公司 | Anti-interference intermittent type socket with detachable metal cap spare |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4012051B2 (en) * | 2002-11-27 | 2007-11-21 | 三菱電機株式会社 | Circuit breaker and circuit breaker combined with external attachment |
| CN101916695B (en) * | 2010-08-06 | 2012-08-29 | 上海良信电器股份有限公司 | Double-layer electric arc isolation device of miniature circuit breaker |
| CN101916696B (en) * | 2010-08-06 | 2014-05-14 | 上海良信电器股份有限公司 | Electric arc isolating device of miniature circuit breaker |
| CN102368460A (en) * | 2011-09-13 | 2012-03-07 | 上海诺雅克电气有限公司 | Miniature breaker with safety device |
| CN103021756B (en) * | 2012-12-27 | 2015-10-07 | 德力西电气有限公司 | A kind ofly prevent electric arc from oppositely spraying and the circuit breaker in Dai Paohu road |
| US11942299B2 (en) | 2018-12-21 | 2024-03-26 | Weg Drives And Controls Automação Ltda | Switch module in a molded casing for a circuit breaker and circuit breaker in a modular molded casing |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1588754B2 (en) * | 1967-08-23 | 1970-10-08 | Siemens AG, 1000 Berlin u. 8OOO München | Electric circuit breaker |
| DE2816352C2 (en) * | 1978-04-12 | 1982-12-16 | Siemens AG, 1000 Berlin und 8000 München | Low voltage circuit breaker with arcing compartment and switching mechanism |
| FR2557354B1 (en) * | 1983-12-26 | 1986-09-05 | Merlin Gerin | MINIATURE CIRCUIT BREAKER WITH IMPROVED DIELECTRIC HOLD |
| DE3679291D1 (en) * | 1985-10-31 | 1991-06-20 | Merlin Gerin | KINEMATIC TRANSMISSION CHAIN BETWEEN THE CONTROL MECHANISM AND THE POLES OF AN ELECTRIC LOAD SWITCH WITH A SPRAYED INSULATION HOUSING. |
-
1996
- 1996-12-23 FR FR9616151A patent/FR2757675B1/en not_active Expired - Fee Related
-
1997
- 1997-11-26 HU HU9702250A patent/HU221494B/en not_active IP Right Cessation
- 1997-12-01 ID IDP973805A patent/ID19224A/en unknown
- 1997-12-03 MA MA24883A patent/MA24413A1/en unknown
- 1997-12-15 CN CNB971254893A patent/CN1174454C/en not_active Expired - Lifetime
- 1997-12-16 EG EG133697A patent/EG20952A/en active
- 1997-12-19 BR BR9706424A patent/BR9706424A/en not_active IP Right Cessation
- 1997-12-19 CZ CZ19974145A patent/CZ293169B6/en not_active IP Right Cessation
- 1997-12-22 TR TR97/01676A patent/TR199701676A3/en unknown
- 1997-12-22 AR ARP970106120A patent/AR008947A1/en active IP Right Grant
- 1997-12-22 EA EA199700414A patent/EA000998B1/en not_active IP Right Cessation
- 1997-12-23 PL PL97323991A patent/PL186158B1/en unknown
-
1998
- 1998-12-11 HK HK98113179A patent/HK1011893A1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101606290A (en) * | 2007-02-12 | 2009-12-16 | 立维腾制造有限公司 | Anti-interference intermittent type socket with detachable metal cap spare |
Also Published As
| Publication number | Publication date |
|---|---|
| EA000998B1 (en) | 2000-08-28 |
| TR199701676A2 (en) | 1999-10-21 |
| PL323991A1 (en) | 1998-07-06 |
| HU221494B (en) | 2002-10-28 |
| CZ414597A3 (en) | 1999-01-13 |
| HK1011893A1 (en) | 1999-07-23 |
| ID19224A (en) | 1998-06-28 |
| HUP9702250A3 (en) | 2000-03-28 |
| FR2757675A1 (en) | 1998-06-26 |
| PL186158B1 (en) | 2003-11-28 |
| BR9706424A (en) | 1999-08-03 |
| CN1186320A (en) | 1998-07-01 |
| FR2757675B1 (en) | 1999-01-29 |
| EA199700414A2 (en) | 1998-06-25 |
| HUP9702250A2 (en) | 1998-07-28 |
| MA24413A1 (en) | 1998-07-01 |
| CZ293169B6 (en) | 2004-02-18 |
| AR008947A1 (en) | 2000-02-23 |
| MX9710124A (en) | 1998-06-28 |
| TR199701676A3 (en) | 1999-10-21 |
| HU9702250D0 (en) | 1998-01-28 |
| EG20952A (en) | 2000-07-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20041103 |