EP0922290A1 - Bewegbare schaltkontaktanordnung mit einem kontakthebel aufnehmenden kontakthebelträger - Google Patents
Bewegbare schaltkontaktanordnung mit einem kontakthebel aufnehmenden kontakthebelträgerInfo
- Publication number
- EP0922290A1 EP0922290A1 EP97942791A EP97942791A EP0922290A1 EP 0922290 A1 EP0922290 A1 EP 0922290A1 EP 97942791 A EP97942791 A EP 97942791A EP 97942791 A EP97942791 A EP 97942791A EP 0922290 A1 EP0922290 A1 EP 0922290A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- base body
- contact lever
- levers
- additional
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
- H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
- H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
-
- 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
- H01H73/04—Contacts
Definitions
- the invention relates to a movable switching contact arrangement for a low-voltage circuit breaker with contact levers and a contact lever holder which receives the contact levers and is pivotably mounted by means of lateral bearing arms for switching on and off.
- a switch contact arrangement of this type is through the
- switch contact arrangements are also known which are composed of a combination of plastic molded parts and metal parts. In any case, these switch contact arrangements are dimensioned for a certain number of contact levers. For a series of low-voltage circuit breakers comprising several rated currents, a correspondingly large number of different movable switch contact arrangements are required. The object of the invention is to reduce the manufacturing costs for this large number of switch contact arrangements.
- the contact lever carrier has a central part consisting of a base body and at least one attachable to it Additional body, and that on both sides of the middle part
- the base body can contain at least two threaded openings on both sides, the bearing arms and the additional bodies having through openings for connecting screws which are aligned with the threaded openings.
- the additional bodies only need to have through holes, the accuracy of which requires only minor requirements. This facilitates the manufacture of the additional body as inexpensive parts.
- Figure 1 shows schematically a low voltage
- Circuit breaker with a movable switch contact arrangement on average.
- FIG. 2 shows a switch contact arrangement with a view of the contacting sides of contact levers.
- FIG. 3 shows, schematically simplified, a contact lever carrier with a central part consisting of only one base body.
- FIG. 4 a representation corresponding to FIG. 3 shows a contact lever carrier with a wider central part, which consists of a base body and two additional bodies of a first type.
- FIG. 5 shows a contact lever carrier, the middle part of which is composed of a base body and an additional body of a first type and a second type.
- FIG. 7 shows a connecting surface of a base body.
- a low-voltage circuit breaker 1 shown schematically in FIG. 1 has a housing 2 in which a switch contact system, an arc quenching chamber 3 and a drive device 4 serving to actuate the switch contact system are accommodated.
- the switch contact system includes a fixed switch contact 5, which with a upper connecting rail 6 is connected.
- a movable switching contact arrangement 7 which interacts with the fixed switching contact 5 comprises contact levers 10 which are articulated to a contact lever carrier 11.
- Flexible conductors 12 serve to connect the contact levers 10 to a lower connecting rail 13 arranged parallel to the upper connecting rail 6. Both connecting rails 6 and 13 protrude from the housing 2 on the rear side thereof and serve to connect the circuit breaker 1 to a load circuit.
- the drive device 4 includes a selector shaft 14 which is connected to the contact lever carrier 11 by an articulated coupling linkage 15.
- the circuit breaker 1 can have a plurality of switch contact systems of the type shown in a parallel arrangement. Here, all poles can be switched on and off by the same drive device 4 and the control shaft 14.
- Each movable switching contact arrangement 7 can have a plurality of contact levers 10, as shown in FIG. 2.
- the contact levers 10 are pivotably mounted on the contact lever carrier 11 by means of a bearing bolt 16 and are biased in the direction of the fixed switching contact 5 by contact force springs which act on the rear side of the contact levers 10 and are therefore not visible in FIG.
- the contact lever carrier 11 has two lateral bearing arms 17, at the lower end of which a bearing pin 20 is provided.
- Wall body 21 of the housing 2 of the power Switch l are with bearing openings 22 for engaging the
- the rated current of the movable switching contact arrangement 7 shown depends on the number of contact levers 10. Switching contact systems for different rated currents can therefore be manufactured by using a larger or smaller number of identical contact levers. The following explains how the contact lever carrier 11 can be adapted to a different number of contact levers 10.
- FIG. 3 shows schematically a contact lever carrier 25, which consists of a central base body 26 and bearing arms 17 fastened to it on both sides.
- the base body 26 is designed as a standard part, which is preferably dimensioned for the smallest size occurring in a series of low-voltage circuit breakers.
- the contact lever carrier for sizes with higher
- FIG. 4 shows a contact lever carrier 27, the central part of which consists of a combination of a base body 26 with additional bodies 28 of a first type attached on both sides.
- the overall width available for accommodating the contact levers 10 thereby increases from the dimension B1 in FIG. 3 to a dimension B2 according to FIG. 4. If an additional body 30 of a second type is additionally provided, a combination of the base body results
- Additional body 30 of the second type a contact lever carrier 29 with a usable width B3.
- An even larger overall width B4 is provided by a contact lever carrier 31 according to FIG. 6, which contains a combination of a base body 26 with two additional bodies 30 of the second type.
- connection of the bearing arms 17 to the base body 26 or the respectively provided combination of a central part 26 with additional bodies 28 or 30 is carried out by connecting screws 32, which are shown in simplified form in FIGS. 3, 4, 5 and 6 by their center lines.
- the base body 26 and the additional bodies 28 and 30 are provided with connecting surfaces which facilitate a correct assembly.
- 7 shows a connecting surface 33 of the base body 26 with two threaded openings 34 and three approximately diagonally arranged peg-like projections 35.
- the opposite connecting surface 36 contains depressions 37 corresponding to the projections 35.
- the additional body 28 and 30 are provided with similar connecting surfaces 33 and 36, so that the base body 26 and additional body 28 and 30 can be joined together as desired.
- the additional body 28 and 30 contain the Threaded openings 32 are aligned through openings 38, which are indicated in FIGS. 3, 4, 5 and 6.
- the base body 26 and the additional bodies 28 and 30 can be provided with webs or ribs 39 (FIG. 7) in order to ensure a desired mutual distance between the contact levers 10 (FIG. 2).
Landscapes
- Breakers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29615566U DE29615566U1 (de) | 1996-08-28 | 1996-08-28 | Bewegbare Schaltkontaktanordnung mit einem Kontakthebel aufnehmenden Kontakthebelträger |
DE29615566U | 1996-08-28 | ||
PCT/DE1997/001957 WO1998009306A1 (de) | 1996-08-28 | 1997-08-28 | Bewegbare schaltkontaktanordnung mit einem kontakthebel aufnehmenden kontakthebelträger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0922290A1 true EP0922290A1 (de) | 1999-06-16 |
EP0922290B1 EP0922290B1 (de) | 2000-03-22 |
Family
ID=8028905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97942791A Expired - Lifetime EP0922290B1 (de) | 1996-08-28 | 1997-08-28 | Bewegbare schaltkontaktanordnung mit einem kontakthebel aufnehmenden kontakthebelträger |
Country Status (5)
Country | Link |
---|---|
US (1) | US6225585B1 (de) |
EP (1) | EP0922290B1 (de) |
JP (1) | JP2000517096A (de) |
DE (2) | DE29615566U1 (de) |
WO (1) | WO1998009306A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19932010C1 (de) * | 1999-07-02 | 2001-03-08 | Siemens Ag | Schaltkontaktanordnung eines Niederspannungs-Leistungschalters mit Hauptkontakten, Zwischenkontakten und Abreißkontakten |
DE10012605A1 (de) * | 2000-03-09 | 2001-09-13 | Siemens Ag | Schaltpol für Niederspannungs-Schaltgeräte mit linear bewegbarem Kontaktträger |
DE10243835B3 (de) * | 2002-09-13 | 2004-04-15 | Siemens Ag | Schaltkontaktanordnung mit einer Abbrandanzeige für die Schaltkontakte |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3539786A1 (de) | 1985-11-07 | 1987-05-14 | Siemens Ag | Kontaktanordnung mit in einem halter relativ zueinander schwenkbar gelagerten kontakthebeln |
DE29503327U1 (de) | 1995-02-16 | 1995-04-13 | Siemens Ag | Kontakthebelbaugruppe für einen Niederspannungs-Leistungsschalter |
-
1996
- 1996-08-28 DE DE29615566U patent/DE29615566U1/de not_active Expired - Lifetime
-
1997
- 1997-08-28 US US09/254,192 patent/US6225585B1/en not_active Expired - Fee Related
- 1997-08-28 JP JP10511179A patent/JP2000517096A/ja active Pending
- 1997-08-28 WO PCT/DE1997/001957 patent/WO1998009306A1/de active IP Right Grant
- 1997-08-28 EP EP97942791A patent/EP0922290B1/de not_active Expired - Lifetime
- 1997-08-28 DE DE59701338T patent/DE59701338D1/de not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9809306A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0922290B1 (de) | 2000-03-22 |
JP2000517096A (ja) | 2000-12-19 |
US6225585B1 (en) | 2001-05-01 |
WO1998009306A1 (de) | 1998-03-05 |
DE29615566U1 (de) | 1998-01-02 |
DE59701338D1 (de) | 2000-04-27 |
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