EP1376637B1 - Ensemble de protection et de commande électromagnétique. - Google Patents

Ensemble de protection et de commande électromagnétique. Download PDF

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Publication number
EP1376637B1
EP1376637B1 EP03101681.9A EP03101681A EP1376637B1 EP 1376637 B1 EP1376637 B1 EP 1376637B1 EP 03101681 A EP03101681 A EP 03101681A EP 1376637 B1 EP1376637 B1 EP 1376637B1
Authority
EP
European Patent Office
Prior art keywords
housing
electrical
power terminal
protection
control assembly
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
Application number
EP03101681.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1376637A1 (fr
Inventor
Guy Eschermann
Patrick Larcher
Alain Moreux
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP1376637A1 publication Critical patent/EP1376637A1/fr
Application granted granted Critical
Publication of EP1376637B1 publication Critical patent/EP1376637B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/2408—Modular blocks
    • 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
    • H01H71/08—Terminals; Connections
    • H01H71/082—Connections between juxtaposed circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/514—Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them

Definitions

  • the present invention relates to a set of protection and electromagnetic control for the mechanical fixing and the electrical connection of several electrical switch devices, in particular for the realization of an assembly comprising a combination of at least two electrical devices such as a contactor, a circuit breaker, a disconnector, a fuse disconnector, a thermal relay or any other similar electrical device, usable in distribution or low voltage electrical control.
  • the invention also relates to an electrical apparatus capable of forming part of the composition of such a protection and control assembly.
  • a first electrical protection device is frequently associated in cascade, such as a circuit breaker or a fuse disconnector with a second electrical control device, such as a contactor, these two devices being interconnected with each other. It is also possible to add to this association other devices such as a protective thermal relay.
  • the electrical devices comprise terminal blocks provided with elastic terminals in which a connecting block of the two devices is directly inserted from the front.
  • the system further comprises complementary mechanical attachment means on both devices to perfect their mechanical attachment.
  • This solution is not suitable for screw terminals commonly used in particular in devices capable of switching a high power electric current, for example greater than or equal to 32A at 400V.
  • the interconnection block anyway requires the presence of a clean terminal on each device.
  • the invention therefore aims to facilitate the establishment of a mechanical and electrical combination of several electrical devices in cascade in order to achieve a simple, reliable and economical protection and control assembly.
  • the invention describes a protection and control assembly comprising a first electrical switching device and a second electrical switch device each having a housing provided with upstream and downstream connecting conductor strips, respectively, which project from a vertical axis on a vertical axis. an upstream and downstream horizontal connection range of each housing and which can be inserted into removable power terminal block openings, the electrical appliances being juxtaposed one over the other in a direction parallel to the axis vertical.
  • the protection and control assembly comprises a common removable terminal block for electrically clamping the downstream connection strips of the first electrical appliance with the corresponding upstream connection strips of the second electrical appliance, further ensuring mechanical attachment of the two electrical appliances. .
  • the housing of the first electrical appliance comprises a downstream horizontal support pad which is pressed against an upstream horizontal support pad of the housing of the second electrical appliance.
  • downstream strips of the first electrical appliance are offset with respect to the upstream bars of the second electrical appliance in a direction perpendicular to the vertical axis of the bars.
  • the removable terminal blocks are identical and interchangeable and have holding members adapted to cooperate with complementary means arranged in the housings of electrical appliances.
  • the Figures 1 and 2 show an exemplary embodiment of a protection and control assembly according to the invention.
  • This set comprises at least two electrical devices, in this case a circuit breaker and a contactor.
  • the invention allows an equivalent way to achieve an assembly comprising more than two electrical devices, for example three devices: a circuit breaker, a contactor and a thermal relay as detailed below.
  • the invention can also be applied to any other electrical device used in distribution or low voltage electrical control.
  • the Figures 3 and 4 represent a multipolar electrical switch device, for example of the breaker type, capable of integrating into such a protection and control assembly.
  • the electrical apparatus comprises a housing 30 of generally parallelepipedal shape with a front face 31 may include an actuator opposite to a rear face 32 may comprise means for fixing the device on a frame, a profile and / or a platinum .
  • the housing 30 also has an upstream horizontal face 33b, 34b opposite a downstream horizontal face 33a, 34a. Upstream connecting conductor strips 39b protrude on the upstream horizontal face 33b, 34b of the housing 30 along a vertical axis X and downstream connecting conductor strips 39a project from the downstream horizontal face 33a, 34a of the housing 30 in accordance with FIG.
  • the switch device has rigid conductor strips 39a, 39b of identical rectangular section and of sufficient size for the circulation of a high power current, for example greater than or equal to 32A under 400V.
  • the conductive strips are metallic, in particular copper.
  • the downstream horizontal face 33a, 34a and the upstream horizontal face 33b, 34b of the housing 30 are formed by several horizontal planes offset with respect to each other.
  • the downstream horizontal face 33a, 34a consists of at least one horizontal downstream bearing surface 33a as well as a horizontal downstream connection zone 34a offset from which the downstream conductive strips 39a emerge.
  • the upstream horizontal face 33b, 34b consists of at least one horizontal upstream support zone 33b as well as a horizontal upstream connection zone 34b offset from which the upstream conductive bars 39b emerge.
  • the downstream support pads 33a and upstream 33b are closer to the rear face 32 of the housing 30 and are further apart than the downstream connection 34a and upstream 34b pads.
  • the downstream connection 34a and upstream connection 34b of the housing 30 are arranged to each receive a removable power terminal block 40 so as to allow the electrical connection of the connection strips 39a, 39b of the housing 30 with external conductors.
  • a power terminal block 40 shown in FIGS. Figures 5 and 6 , obviously has as many power terminals as poles of the switch device on which it must be mounted. It is of parallelepipedal shape with two opposite horizontal faces 41,49 and a vertical front face allowing access to clamping screws 42 of the terminals.
  • the width of a terminal block 40 is substantially equal to that of the housing 30.
  • each connection strip 39a, 39b is inserted into a corresponding opening 44 when one of the horizontal faces 41,49 of a connection terminal block 40 is pressed against a connection pad 34a, 34b of the box 30.
  • each terminal of a power terminal block 40 comprises a clamping screw 42 cooperating with a clamping cage 43 located in the corresponding opening 44 of the terminal.
  • the screw 42 is tightened, the cage 43 is deformed so that it comes to grip the conductors present in the opening 44.
  • This clamping makes it possible to make an effective electrical connection of the connection strip with any other conductor previously inserted into the opening 44, and further allows to fix the connection terminal 40 against the housing 30 of the switch device.
  • At least one of the horizontal faces 41,49 of the power terminal block 40 has holding members 45.
  • retainers 45 are designed to cooperate with means complementary downstream 35a, respectively upstream 35b, arranged at the downstream connection 34a, respectively upstream 34b, of the housing 30.
  • these holding members are constituted by one or more pins 45 present on a front portion of the horizontal face 41 of the power terminal block 40.
  • these pins are introduced into as many corresponding cavities 35a, 35b present on a front portion of the connection pads 34a, 34b of the housing 30.
  • the cavities 35a, 35b are of complementary shape to the lugs 45.
  • the removable power terminal block 40 is advantageously symmetrical with respect to a median vertical plane so that a same terminal block 40 can indifferently be mounted downstream but also upstream of a housing 30 after reversal.
  • the horizontal face 41 has two lugs 45 disposed on either side of the median vertical plane.
  • the protection and control assembly described in the invention comprises a first electrical switch device as described above and a second electrical switch device.
  • the second electrical apparatus comprises a housing 10 of generally parallelepiped shape having an upstream horizontal face 13b, 14b opposite a downstream horizontal face 13a, 14a.
  • the width of the housing 10 of the second device is substantially equal to that of the housing 30 of the first device.
  • the downstream horizontal face 13a, 14a consists of at least one horizontal zone.
  • the upstream horizontal face 13b, 14b consists of at least one horizontal upstream bearing surface 13b and an upstream horizontal connection zone 14b offset from which output the upstream connection strips 19b.
  • the downstream support pads 13a and upstream 13b are closer to the rear face of the housing 10 and further apart than the downstream connection pads 14a and 14b upstream.
  • Cavities 15a, 15b, similar to the cavities 35a, 35b, are arranged on a front portion of the downstream 14a and upstream connection pads 14b of the housing 10, to accommodate the terminal pins for holding power.
  • the housings 30 and 10 are juxtaposed one on the other in a direction parallel to the vertical axis X of the terminal strips so that the downstream support pad 33a of the housing 30 of the first electrical appliance is pressed against the upstream bearing surface 13b of the housing 10 of the second electrical appliance.
  • the vertical dimensions of the protection and control assembly is therefore minimal since the housings of the two electrical appliances are directly juxtaposed without space between them.
  • a removable downstream power terminal block 50 is mounted against the downstream connection zone 14a of the second housing 10.
  • the tightening of the screws of this downstream terminal block 50 makes it possible to fix it against the housing 10 and to connect electrically downstream connection strips 19a to downstream outer conductors.
  • a removable upstream power terminal block 60 is mounted against the upstream connection zone 34b of the first housing 30. The tightening of the screws of the upstream terminal block 60 makes it possible to fix it against the housing 30 and electrically connecting the upstream connection strips 39b to upstream outer conductors.
  • the 50,60 power terminal blocks are identical to the power terminal 40 described above.
  • the power terminal blocks 40, 50, 60 comprise holding lugs 45, 55, 65 cooperating with the complementary shaped cavities 35 a, 35 b, 15 a, 15 b of the boxes 30, 10 so as to facilitate the guiding, the positioning and the maintenance of the terminal blocks against the housings of electrical appliances.
  • the gap existing between the support pad and the connection pad of the same horizontal face of a casing is designed so that when the two casings 30 and 10 are juxtaposed one on the other by their range of support, the space created between the downstream connection range 34a of the first housing 30 and the upstream connection area 14b of the second housing 10 allows to house a common power terminal block 40 removable.
  • this common terminal block 40 is identical to the power terminal blocks upstream 60 and downstream 50, thus reducing the number of different parts necessary for mounting the described assembly since all the power terminals 40,50,60 are interchangeable with each other.
  • the holding pins 45 of the common power terminal block 40 are associated with the cavities 35a, 35b of the housing 30.
  • the common terminal block 40 could also be turned so that the holding pins 45 can be associated with the cavities of the second housing 10 (via a hold 70).
  • Such a protection and control assembly consisting of two electrical devices therefore comprises only three power terminals 40,50,60 whereas usually two terminal blocks per device are required.
  • the common power terminal block 40 performs several functions. Once the downstream bars 39a of the first device and the upstream strips 19b of the second device are inserted into the openings 44 of the common terminal block 40, a clamping action on the three clamping screws 42 allows two electrical connection of the two downstream bars 39a the first apparatus with corresponding upstream strips 19b of the second apparatus. In addition, this clamping action allows mechanical attachment of the two devices together. With this mechanical attachment, a single device, for example the first device 30, needs to be fixed by its rear face 32 on a support, such as a frame, a profile or a plate, the other device being maintained only by the common terminal block 40. It is then very easy to assemble the two devices together before fixing the assembly on the support. In addition, only one support is necessary to mount the assembly.
  • the downstream strips 39a of the first device are slightly offset from the upstream strips 19b of the second device in a direction perpendicular to the vertical axis X of the bars.
  • the downstream bars 39a of the housing 30 are offset rearwardly with respect to the upstream strips 19b of the housing 10. It would obviously be possible to envisage a shift towards the front, or even a lateral shift of the downstream bars relative to to the upstream bars.
  • This offset must be sufficient not to interfere with the juxtaposition of the housings 30 and 10 during assembly of the assembly. However, this offset must nevertheless make it possible, once the assembled assembly and once the screws 42 of the common terminal block 40 are tight, that the downstream strips 39a of the first device overlap and are flush with the upstream strips 19b of the second device to form a zone electrical contact 49, as indicated in figure 5 .
  • the length of the downstream and upstream connection strips is designed so that the overlap of the downstream bars 39a of the first apparatus and upstream strips 19b of the second apparatus provide a contact zone 49 sufficient for reliable mechanical maintenance and a satisfactory electrical connection. of both devices, in accordance with the electrical current likely to flow in the protection and control unit.
  • the invention also makes it possible to provide a protection and control assembly comprising more than two electrical appliances. It is indeed easy to add a third electrical device to the described assembly while maintaining the same power terminals 40,50,60. If the housing of the third electrical appliance is placed downstream of the housing 10, as in the case of a thermal relay for example, it will be juxtaposed with the downstream bearing surface 13a of the housing 10 and the power terminal block 50 will serve as a common terminal block between the housings of the second and third apparatus. The upstream connection strips of the third device will then be designed to be slightly offset from the downstream strips of the second device.
  • a third electrical device was placed upstream of the housing 30, it would be juxtaposed to the upstream bearing pad 33b and the power terminal block 60 would serve as a common terminal block between the housings of the first and third apparatus.
  • the downstream connection strips of the third device should then be slightly offset from the upstream strips of the first device.
  • some switchgear devices may comprise by construction a recess on a front portion of the connection range of their downstream and upstream horizontal faces, before the outputs of the terminal strips.
  • the downstream 14a and upstream 14b connection pads of the second electrical apparatus comprise such a recess located just in front of the connection strips 19a, 19b.
  • this recess can then be closed by the introduction of a shim 70, respectively 70 ', between the housing 10 and the power terminal block 40, respectively 50, so as to improve the maintenance of the power terminal blocks 40,50 against the housing 10.
  • These wedges 70,70 ' are identical and symmetrical with respect to a median vertical plane.
  • They have a parallelepipedal shape with a height substantially equal to the recess and a width substantially equal to the width of the housings of the electrical appliances. They thus make it possible to fill said recesses without increasing the general dimensions of the assembly described in the invention. They comprise a first horizontal face having holding lugs that can cooperate with the cavities 15a, 15b of the housing 10 and a second opposite horizontal face having cavities that can cooperate with the holding pins of the adjacent power terminal blocks.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Patch Boards (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
EP03101681.9A 2002-06-25 2003-06-10 Ensemble de protection et de commande électromagnétique. Expired - Lifetime EP1376637B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0207964 2002-06-25
FR0207964A FR2841377B1 (fr) 2002-06-25 2002-06-25 Ensemble de protection et de commande electromagnetique

Publications (2)

Publication Number Publication Date
EP1376637A1 EP1376637A1 (fr) 2004-01-02
EP1376637B1 true EP1376637B1 (fr) 2013-04-24

Family

ID=29717112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03101681.9A Expired - Lifetime EP1376637B1 (fr) 2002-06-25 2003-06-10 Ensemble de protection et de commande électromagnétique.

Country Status (7)

Country Link
US (1) US6840823B2 (zh)
EP (1) EP1376637B1 (zh)
JP (1) JP4242214B2 (zh)
KR (1) KR100988718B1 (zh)
CN (1) CN1256748C (zh)
ES (1) ES2408307T3 (zh)
FR (1) FR2841377B1 (zh)

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
US9510732B2 (en) * 2005-10-25 2016-12-06 Intuitive Surgical Operations, Inc. Methods and apparatus for efficient purging
DE102005026714B3 (de) * 2005-06-09 2006-12-14 Siemens Ag Schutzeinrichtung mit einer Schutzschaltereinheit und mit einer Überspannungsschutzeinheit
CN102184806B (zh) * 2011-04-11 2014-04-09 欣灵电气股份有限公司 多用途继电器
FR2999781B1 (fr) * 2012-12-18 2015-01-02 Schneider Electric Ind Sas Dispositif modulaire de commutation electrique comportant au moins un bloc de coupure unipolaire et ensemble de commutation comportant de tels dispositifs.
US10597129B1 (en) 2013-03-15 2020-03-24 Stefan Broinowski Marine ducted propeller mass flux propulsion system
CN107248625A (zh) * 2017-04-27 2017-10-13 海宁市海创通日用品科技有限公司 快速两端电线排
DE102018202793A1 (de) * 2018-02-23 2019-08-29 Ellenberger & Poensgen Gmbh Schutzschaltergehäuse
GB201813253D0 (en) 2018-08-14 2018-09-26 Eaton Intelligent Power Ltd Space saving electrical devices arrangement for installation on a mounting rail and connector devices for a space saving electrical devices arrangement

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Also Published As

Publication number Publication date
FR2841377B1 (fr) 2004-08-06
JP2004031354A (ja) 2004-01-29
CN1256748C (zh) 2006-05-17
FR2841377A1 (fr) 2003-12-26
ES2408307T3 (es) 2013-06-20
CN1487548A (zh) 2004-04-07
US20040042148A1 (en) 2004-03-04
KR20040002675A (ko) 2004-01-07
EP1376637A1 (fr) 2004-01-02
JP4242214B2 (ja) 2009-03-25
US6840823B2 (en) 2005-01-11
KR100988718B1 (ko) 2010-10-18

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