EP1396917A1 - Sammelschienen-verbindungsanschluss - Google Patents

Sammelschienen-verbindungsanschluss Download PDF

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Publication number
EP1396917A1
EP1396917A1 EP01938667A EP01938667A EP1396917A1 EP 1396917 A1 EP1396917 A1 EP 1396917A1 EP 01938667 A EP01938667 A EP 01938667A EP 01938667 A EP01938667 A EP 01938667A EP 1396917 A1 EP1396917 A1 EP 1396917A1
Authority
EP
European Patent Office
Prior art keywords
section
bus bar
connecting plate
plate sections
bar connecting
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
Application number
EP01938667A
Other languages
English (en)
French (fr)
Other versions
EP1396917A4 (de
EP1396917B1 (de
Inventor
Hiroshi Okashita
Junichi Kawakami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP1396917A1 publication Critical patent/EP1396917A1/de
Publication of EP1396917A4 publication Critical patent/EP1396917A4/de
Application granted granted Critical
Publication of EP1396917B1 publication Critical patent/EP1396917B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits

Definitions

  • This invention relates to a bus bar connecting terminal and, more particularly, to a bus bar connecting terminal for connecting a plurality of bus bars to the terminals of circuit breakers and other electrical devices through which a large electric current flows.
  • Fig. 7 is a schematic front view showing a drawer-type circuit breaker having conventional bus bar connecting terminals
  • Fig. 8 is a schematic side view of the bus bar connecting terminals of Fig. 7 in a bus bar omitted state
  • Fig. 9 is a front view showing the conventional bus bar connecting terminal shown in Fig. 7
  • Fig. 10 is a plan view of Fig. 9
  • Fig. 11 is a dissected front view of the bus bar connecting terminal of Fig. 9
  • Fig. 12 is a front view of Fig. 11
  • Fig. 13 is a front view of the conventional bus bar connecting terminal shown in Fig. 7 in a bus bar connected state
  • Fig. 14 is a plan view of Fig. 13.
  • a drawer-type circuit breaker 10 or an electrical device through which a large electric current flows, comprises a drawer frame 10a and a circuit breaker 10b mounted within the drawer frame 10a, in which the drawer frame 10a is provided with a mounting base 10c made of a synthetic resin for holding bus bar connecting terminals 30.
  • the terminals of the circuit breaker 10b are connected to the inner end of each of the bus bar connecting terminals 30 held by the mounting base 10c.
  • the mounting base 10c is provided with a backup plate 40 for preventing the mounting base 10c from being broken by an action of an electromagnetic force induced in the directions shown by the arrows in Fig.
  • the backup plate 40 also prevents the mounting base 10c from being broken upon the action thereon of an excessive load due to the weights of the bus bars 50 being connected to each bus bar connecting terminal 30 following the connection of the bus bars 50 to the bus bar connecting terminals 30.
  • bus bar connecting terminals used in circuit breakers with large capacities have a structure as shown in Figs. 9 to 14, which is a vertically converting structure including vertical and horizontal portions for eliminating temperature rises due to thermal convection occurring between the load side terminals (not shown) of the circuit breaker 10b and the bus bars 50, the structure being formed by connecting vertical terminals 33 to horizontal terminals 31 by the braze welding or the like.
  • the horizontal terminal 31 has first positioning grooves 31a for fitting the vertical terminals 33 at U-shaped notches 33b thereof, a plurality of fitting holes 31b for screw-fastening to the backup plate 40 and notches 31c for fitting into the mounting base 10c.
  • the vertical terminals 33 have a plurality of fitting holes 33a for screw-fastening the bus bars 50 by bus bar connecting screws (not illustrated) to be described later and the U-shaped notches 33b for fittting to the horizontal terminal 31.
  • interval L1 (Fig. 10) among the plurality of vertical terminals 33 is set at a dimension larger than the thickness of the standard bus bars that is determined by the rated current.
  • interval L1 among the vertical terminals 33 is set in a range of from 10.5mm to 11.5mm with a slight clearance given. While, the thickness of the vertical terminals 33 should never be smaller than thickness L0 because it is necessary to give among the bus bars 50 an interval that must be identical with thickness L0 of the bus bars 50 at the smallest (see Fig. 14).
  • the plurality of positioning grooves 31a must be formed in the horizontal terminals 31, and the plurality of vertical terminals 33 each having the holes 33a and the notches 33b must be manufactured, and moreover all these components must be braze-jointed to each other, so that the manufacturing cost for the bus bar connecting terminal 30 is disadvantageously high.
  • the present invention therefore has as its object the provision of a bus bar connecting terminal that is free from the problems discussed above, and the provision of a bus bar connecting terminal ensuring a stable and good electric and thermal connective relationship between bus bars and bus bar connecting terminals.
  • the present invention also has as its object the provision of a low-priced bus bar connecting terminal which is easily producible and highly reliable.
  • FIG. 1 is a front view showing one embodiment of the bus bar connecting terminal of the present invention
  • Fig. 2 is a plan view of the bus bar connecting terminal of Fig. 1
  • Fig. 3 is an exploded front view showing the disassembled bus bar connecting terminal of Fig. 1
  • Fig. 4 is a sectional view of the vertical terminal of Fig. 1
  • Fig. 5 is a front view showing a state in which the bus bar connecting terminal of Fig. 1 is connected with a bus bar
  • Fig. 6 is a plan view of the bus bar connecting terminal of Fig. 5.
  • the bus bar connecting terminal 70 of this invention comprises a conductor section 71 to be electrically connected to an electrical apparatus such as a circuit breaker (see Fig. 7), a plurality of connecting plate sections 73 which are separated in parallel from each other and connected to a plurality of bus bars 50 in an alternatingly juxtaposed relationship with each other, as shown in Figs. 5 and 6, and a support section 72 having one end rigidly connected and supported to the conductor section 71 by way of brazing or the like and the other end supporting the plurality of connecting plate sections 73 in parallel, thereby connecting and supporting the conductor section 71 and the connecting plate sections 73 each other.
  • an electrical apparatus such as a circuit breaker (see Fig. 7)
  • a plurality of connecting plate sections 73 which are separated in parallel from each other and connected to a plurality of bus bars 50 in an alternatingly juxtaposed relationship with each other, as shown in Figs. 5 and 6, and a support section 72 having one end rigidly connected and supported to the conductor section 71 by
  • the conductor section 71 has similar structures to those shown in Figs. 7 - 14, such as the notches 71c and holes 71b for the connection to the unillustrated electrical devices, the end portion 71a connected to the support section 72 has no grooves or the like and is accommodated by the grooves 72e formed in the support section 72 and firmly secured thereto by brazing or the like.
  • the support section 72 is formed as a single conductor block member and is different from the corresponding section of the conventional connecting terminals shown in Figs. 7 - 14 that composed of a plurality of plate members.
  • the groove 72e is formed for accepting the conductor section 71 therein.
  • Each of the plurality of connecting plate sections 73 has, as best seen from Fig. 4, a thickness L1 which is at least equal to a thickness L0 of the bus bar 50 to be connected thereto, and thickness L1 is set in a suitable dimension range so that the bus bars 50 after being connected are separated at a not-too-small interval. Further, interval L2 among the connecting plate sections 73 is set at an interval that is slightly larger than thickness L0 of the bus bar 50 for an ease of the insertion of the bus bar 50. In addition, a bolt hole 73d is formed for fastening the bus bars 50 inserted between the connecting plate sections 73 by the unillustrated bolts and nuts.
  • each of the connecting plate sections 73 has a contact area section 73b of size S3 (Figs. 4 and 6) large enough to provide an electrically and thermally sufficient contact area, and is supported by the support section 72 through a flexible section 74.
  • the flexible section 74 is a thin section having thickness L3 which is less than thickness L1 of the connecting plate sections 73.
  • the flexible section 74 serves, as understood by comparing Figs.
  • the support section 72, the connecting plate sections 73 and the flexible section 74 are formed as a continuous integral conductor block 75, and in the illustrated example, the conductor block 75 is the one formed by cutting and processing a long extrusion molding material having a cross section in the shape as shown in Fig. 4 composed of the support section 72, the connecting plate sections 73 and the flexible section 74 to have predetermined dimensions suitable for a bus bar connecting terminal.
  • bus bar connecting terminals for connecting bus bars to a circuit breaker has been explained as an example, it is needless to say that the bus bar connecting terminal of this invention can be also applied to other electric devices such as electromagnetic contactors, switches which are generally connected to bus bars.
  • the bus bar connecting terminal according to the present invention is particularly useful as a bus bar connecting terminal for connecting the plurality of bus bars to the terminals of an electric device such as a circuit breaker through which a large electric current flows.

Landscapes

  • Installation Of Bus-Bars (AREA)
  • Breakers (AREA)
EP01938667A 2001-06-14 2001-06-14 Sammelschienenverbindungsanschluss Expired - Lifetime EP1396917B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2001/005071 WO2002103872A1 (fr) 2001-06-14 2001-06-14 Borne de connexion de barres omnibus

Publications (3)

Publication Number Publication Date
EP1396917A1 true EP1396917A1 (de) 2004-03-10
EP1396917A4 EP1396917A4 (de) 2004-09-29
EP1396917B1 EP1396917B1 (de) 2006-09-27

Family

ID=11737437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01938667A Expired - Lifetime EP1396917B1 (de) 2001-06-14 2001-06-14 Sammelschienenverbindungsanschluss

Country Status (7)

Country Link
EP (1) EP1396917B1 (de)
JP (1) JPWO2002103872A1 (de)
KR (1) KR100539063B1 (de)
CN (1) CN1312815C (de)
DE (1) DE60123484T2 (de)
TW (1) TW531937B (de)
WO (1) WO2002103872A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011006115A1 (de) * 2011-03-25 2012-09-27 Schneider Electric Sachsenwerk Gmbh Elektrische Schaltanlage, insbesondere Mittelspannungsschaltanlage

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100814932B1 (ko) * 2006-09-12 2008-03-19 한국단자공업 주식회사 버스바조립체
KR100890155B1 (ko) * 2007-03-20 2009-03-20 이승철 버스바의 체결 방법
US8014131B2 (en) * 2008-02-05 2011-09-06 Siemens Industry, Inc. Riser bus bar positioning block
US7798833B2 (en) * 2009-01-13 2010-09-21 Gm Global Technology Operations, Inc. Low inductance busbar assembly
JP5947514B2 (ja) * 2011-09-27 2016-07-06 矢崎総業株式会社 アース端子被取付具

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1196267B (de) * 1963-07-31 1965-07-08 Bbc Brown Boveri & Cie Klemmvorrichtung fuer eine Vielzahl von parallel zu schaltenden Leitungen
JPS52155271U (de) * 1976-05-21 1977-11-25

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5479988U (de) * 1977-11-18 1979-06-06
JPS6233454Y2 (de) * 1981-03-30 1987-08-27
JPS59207517A (ja) * 1983-05-10 1984-11-24 富士電機株式会社 しや断器の断路接触子
JPS61412U (ja) * 1984-06-06 1986-01-06 富士電機株式会社 引出形しや断器の断路部構造
JPS61156414U (de) * 1985-03-19 1986-09-27
US5011421A (en) * 1990-03-05 1991-04-30 Westinghouse Electric Corp. Plane change connector assembly
JPH0720012U (ja) * 1993-09-08 1995-04-07 株式会社東芝 引出形電気機器箱

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1196267B (de) * 1963-07-31 1965-07-08 Bbc Brown Boveri & Cie Klemmvorrichtung fuer eine Vielzahl von parallel zu schaltenden Leitungen
JPS52155271U (de) * 1976-05-21 1977-11-25

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO02103872A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011006115A1 (de) * 2011-03-25 2012-09-27 Schneider Electric Sachsenwerk Gmbh Elektrische Schaltanlage, insbesondere Mittelspannungsschaltanlage
DE102011006115B4 (de) * 2011-03-25 2014-01-30 Schneider Electric Sachsenwerk Gmbh Elektrische Schaltanlage, insbesondere Mittelspannungsschaltanlage

Also Published As

Publication number Publication date
CN1446392A (zh) 2003-10-01
KR20030023753A (ko) 2003-03-19
DE60123484T2 (de) 2007-06-21
CN1312815C (zh) 2007-04-25
EP1396917A4 (de) 2004-09-29
KR100539063B1 (ko) 2005-12-26
DE60123484D1 (de) 2006-11-09
TW531937B (en) 2003-05-11
WO2002103872A1 (fr) 2002-12-27
JPWO2002103872A1 (ja) 2004-10-07
EP1396917B1 (de) 2006-09-27

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