WO2011069536A1 - Contacteur - Google Patents

Contacteur Download PDF

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Publication number
WO2011069536A1
WO2011069536A1 PCT/EP2009/066617 EP2009066617W WO2011069536A1 WO 2011069536 A1 WO2011069536 A1 WO 2011069536A1 EP 2009066617 W EP2009066617 W EP 2009066617W WO 2011069536 A1 WO2011069536 A1 WO 2011069536A1
Authority
WO
WIPO (PCT)
Prior art keywords
module
coil
circuit board
frame
casing
Prior art date
Application number
PCT/EP2009/066617
Other languages
English (en)
Inventor
Anders Eriksson
David Karlen
Lars Eriksson
Ove Coman
Original Assignee
Abb Ab
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 Abb Ab filed Critical Abb Ab
Priority to EP09765109.5A priority Critical patent/EP2510531B1/fr
Priority to PCT/EP2009/066617 priority patent/WO2011069536A1/fr
Priority to CN200980162801.5A priority patent/CN102648508B/zh
Publication of WO2011069536A1 publication Critical patent/WO2011069536A1/fr
Priority to US13/491,103 priority patent/US8742875B2/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H01H50/443—Connections to coils
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49105—Switch making

Definitions

  • the present invention relates to contactor used, for example, for switching an electric power or control circuit of an electrical device such as an electric motor, a lighting unit, a heating apparatus or a capacitor bank.
  • a contactor is an electrically controlled switch device used for switching an electric power or control circuit of an electrical load device.
  • a contactor comprises a base and, thereon, an electromagnet apparatus and a contact system.
  • the electromagnet apparatus is used to operate (open or close) a contact system of a contactor, wherein the contact system comprises a movable contact and a stationary contact.
  • Such an electromagnet apparatus includes a fixed part with a magnet core and a coil, and a movable magnet part being connected to the movable contact and movable between a rest position and a working position.
  • an electrical circuit board is electrically connected to the coil for energizing or de-energizing the electromagnet apparatus.
  • Such an electrical circuit board comprises input terminals for power supply and output terminals for providing electricity to the coil. This means that the output terminals have to be connected to input terminals of the coil by some kind of connecting means.
  • a Chinese patent application with the publication number CN101017748 discloses a contactor comprising a winding arranged in a foundation seat unit, a cavity being provided for receiving a controlling circuit board, and the output terminals of the controlling circuit board being connected to the windings by means of connection cables.
  • the object of the present invention is to provide a contactor which requires a reduced manufacturing time and therefore reduces the cost of manufacturing contactors.
  • Such a contactor comprises a frame including a base unit, a coil provided on the base unit and including input terminals, and a module comprising a circuit board for electrically controlling the coil, the circuit board including input terminals for power supply and output terminals for providing an electrical connection to the coil.
  • the contactor further comprises a fastening device arranged for mechanically and electrically connecting one of output terminals to a corresponding input terminal of the coil, and the module is designed such that the fastening device connects the output terminal of the circuit board to the input terminal of the coil simultaneously as the module is connected to the frame.
  • the invention enables the output terminals of the circuit board to be connected to the input terminals of the coil at the same time as the module is connected to the frame of the contactor. Therefore, ca- ble connections are no longer needed and the number of mounting steps for connecting and mounting the circuit board into the contactor is reduced into one single step, and the manufacturing time and cost are reduced.
  • the circuit board arranged on the module may be any of a single electrical circuit board or a printed circuit board.
  • the fastening device further includes a male and a female connector.
  • the male connector may be arranged on at least one of the output terminals of the circuit board, and the female connector may be accordingly arranged on one of the input terminals of the coil.
  • the male connector may be arranged on one of the input terminals of the coil.
  • the female connector will be arranged on one of the output terminals of the circuit board.
  • the female connector is designed to get hold of the male connector for retaining a contact force between the input terminal of the coil and output terminal of the circuit board when the module is connected to the frame.
  • the female connector may be, for example, a socket, a slot or in other forms, while the male connector may be, for example, a plug, a pin or in other forms. It shall be understood that both male and female connectors are made of conductive materials for electrical connection.
  • the fastening device comprises a clamping device and a connection bar.
  • the clamping device is designed to clamp the connection bar for providing and retaining a contact force between the input terminal of the coil and output terminal of the circuit board.
  • the clamping device may be provided either on the output terminals of the circuit board or on the input terminals of the coil and, accordingly, the connection bar is provided on the input terminals of the coil or on the output terminals of the circuit board.
  • clamping devices is provided either on the output terminals of the circuit board or on the input terminals of the coil because this makes it possible to electrically connect the circuit board to the coil and, at the same time, provide a stable mechanical connection be- tween the circuit board and the coil so that the electrical connection be- tween the circuit board and the coil will not be lost in a bumpy working environment.
  • the clamping device includes at least one pair of deformable elements arranged to clamp the connection bar at a first position.
  • another pair, a second pair of deformable elements is arranged on the clamping device to clamp the connection bar at a second position at a distance from the first position, so that a stable mechanical and electrical connection are established.
  • the module is ar- ranged detachable from the frame. It is advantageous that module is designed to be detectable from the frame to provide an easy replacement of a defective module. It may be also a case where an old module will be replaced by a new module containing a different function or more functions than the old one.
  • the module further comprises a fastening member for mechanically connecting the module to the frame. With the facilitating of the fastening member, a stable connection between the module and frame is secured.
  • the frame includes a casing for connection to the base unit and providing a shield for the coil, the module including at least a part of the casing, and said part of the casing being arranged partly surrounding the circuit board. It is advantageous that the module is designed as a part of the casing to enable an easier replacement of the module by just removing the old module and installing a new one without removing other elements of the contactor.
  • the frame includes a casing for connection to the base unit and providing a shield for the coil, the casing including a first casing part and a second casing part, the module including the second casing part, the second casing part being arranged partly surrounding the circuit board, and the first and second casing parts being arranged to be connected to each other upon the connec- tion of the module to the frame such that the casing encloses the circuit board together with the base unit, which ensures that the circuit board is safely secured inside of the contactor that is exposed in a dusty and humid working environment.
  • the first and second casing parts may further comprise a respective guiding member for guiding the module such that the fastening device is connected to the input terminal of the coil upon the connection of the module to the frame.
  • the second casing part may be realized in different shapes and forms, for example, a cassette or an L- formed part with the circuit board embedded inside.
  • a method for assembling the contactor is defined in claim 11, wherein the method comprises steps of installing the coil on the base unit, mounting the module to the frame, which includes connecting the module to the frame simultaneously as the fastening device connects the output terminals of the circuit board to the corresponding input terminals of the coil.
  • the method further comprises a step of connecting the first casing part to the second casing part, which may be achieved by the guiding members arranged on the parts upon mounting the module to the frame such that the circuit board is enclosed by the casing together with the base unit and the assembling is completed.
  • Such a contactor may be arranged to operate for example within a low voltage area, wherein a low voltage is commonly defined as up to about 1000 V ac or 1500 V dc.
  • FIG. 1 shows a perspective view of a contactor without a casing, according to a first embodiment of the invention.
  • Fig.2a illustrates a perspective view of the contactor shown in the
  • Fig. 1 with the casing, with a first part of the casing mounted, according to a second embodiment of the invention, wherein a female connector is provided on an input terminal of the coil.
  • Fig.2b illustrates a perspective view of another female connector of a fastening device, according to a third embodiment of the in- vention.
  • Fig.2c illustrates a perspective view of a connection bar of a fastening device, according to a fourth embodiment of the invention.
  • Fig.3a shows a perspective view of a module comprising an electric circuit board and a male connector corresponding to the male connector illustrated in Fig. 2a, according to the second embodiment of the invention.
  • Fig.3b shows a perspective view of a module comprising an electric circuit board and a male connector corresponding to the male connector illustrated in Fig. 2b, according to the third embodiment of the invention.
  • Fig.3c shows a perspective view of a module comprising an electric circuit board and a clamping device corresponding to the connection bar illustrated in Fig. 2c, according to the fourth embodiment of the invention.
  • Fig.4 is a front view of the module illustrated in Fig.3c.
  • Figs.5a-c show detailed perspective views of a clamping device being connected to the input terminals of a coil and sited on the module, in accordance with to a fifth embodiment of the invention.
  • Figs.6a-c illustrate mounting steps according to an embodiment of the invention.
  • Figs.7a-c illustrate mounting steps according to another embodiment of the invention.
  • Figs.8a-b show a second embodiment of the module, according to an embodiment of the invention.
  • Figs.9a-b show a third embodiment of the module, according to another embodiment of the invention.
  • Figs. 10a-b show a fourth embodiment of the module, according to yet another embodiment of the invention.
  • Fig. 11 shows a cross-sectional view of the contactor when it is completely assembled, according to en embodiment of the invention.
  • FIG. 1 shows a perspective view of a contactor without a casing, according to an embodiment of the invention.
  • the contactor 1 comprises a frame including a base unit 3 and a coil 4.
  • the coil 4 is sited on the base unit 3 and wound around a magnet core, not seen in the figure.
  • the coil 4 includes input terminals 14, 14' for receiving electrical power to energizing the magnet core in order to make a contact.
  • An example of a possible construction of the input terminals of the coil is illustrated in Figures 5a-c in details.
  • FIG. 2a The contactor with a first casing part of a casing mounted on the base unit is illustrated in Figure 2a.
  • the casing is arranged to provide a shield for the coil and other parts of the contactor.
  • Figure 3a shows a perspective view a module comprising an electric circuit board 22, and the module detachable from the frame is to be mounted to the frame.
  • the casing and the base unit 3 defines the frame.
  • the casing is connected to the base and comprises a first casing part 30 for providing a partial shield for the coil and a second, separate casing part in the form of a cassette.
  • the module comprises the second casing part 20, a fastening member for mechanically connecting the module to the frame and the electric circuit board 22 for electrically controlling the coil.
  • the second casing part 20 includes two opposite sidewalls 25, 25', a rear wall 29 and a top wall 23.
  • the electric circuit board 22 is mounted on the inner side of the rear wall 29 of the second casing part 20.
  • the walls of the second casing part build another partial shield for the coil and the electric cir- cuit board when the second casing part 20 is connected to the first casing part 30.
  • the electric circuit board 22 includes input terminals 24 and 24' for connecting a power supply to the electric circuit board and output terminals for providing an electrical connection to the coil.
  • the fastening member is arranged on the sidewalls 25, 25' of the second casing part.
  • the fastening member further includes two connectors 28 and 28' protruding outwardly from end of the sidewall 25, 25' and being arranged to be connected to the frame when the second casing part is connected to the first casing so as to enclose the coil and the circuit board inside of the contactor.
  • an opening 12, 12' is provided on the casing and is arranged to be hooked with the corresponding con- nector.
  • the connectors 28 and 28' are made of flexible material, for exam- pie thermoplastics, that will be deflected briefly during joining operation and catches in a depression in the openings 12 and 12'.
  • the connector 28, 28' is in the form of a hook
  • the opening 12, 12' is in the form of rectangle.
  • the connectors and openings form snap-fit joints and therefore other kinds of snap-fit joints are also applicable.
  • the connectors may also be a stud or bead.
  • Each of the output terminals of the circuit board may include a male connector 36, 36' and each of the input terminals 14, 14' of the coil may in- elude a female connector 16, 16', both arranged for mechanically and electrically connecting the output terminal to a corresponding input terminal of the coil.
  • the male connector 36, 36' is in the form a plug/pin 60, 60' and the female connector 16, 16' is in the form a socket/slot 61, 61' adapted to be cooperated with the plug/pin upon the connection.
  • female and male connectors may be in other forms as well.
  • Figure 2b and 3b show another embodiment, wherein a male connector 36, 36' comprises two plugs/pins 59, 60, 59', 60' arranged on each of the output terminals of the circuit board, and two sockets 61, 62, 61', 62' are arranged on a female connector 16, 16' provided on each of the input terminals of the coil.
  • a male connector may be arranged on an input terminal of the coil as well, in this case, a female connector will be arranged on a corresponding output terminal of the circuit board.
  • the fastening device comprises a clamping device and a connection bar.
  • the clamping device 26, 26' is arranged on each of the output terminals of the circuit board and the connection bar 10, 10' is provided on each of the input terminals of the coil and has the form of an elongated bar, which are together for mechanically and electrically connecting the output terminal to a corresponding input terminal of the coil.
  • another arrangement is also applicable, for example an arrangement of clamping devices provided on input terminals and connection bars on out- put terminals.
  • a detailed front view of the module is illustrated Figure 4.
  • FIG. 5a-c show in details how a clamping device clamps tightly on a connection bar.
  • the clamping device includes two pairs 40, 41 of deform- able elements. Each pair 40, 41 of the deformable elements further includ- ing two legs 40' and 40", 41' and 41". In this embodiment, the legs are constructed with feet bent outwardly to facilitate the mounting even more.
  • the clamping device further includes four pins 42-45 arranged on one side of the clamping device and for connecting to the circuit board, which may however be realized by other means.
  • the first pair of the legs 40' and 40" are arranged to clamp the connection bar 10 at a first position A and the second pair of the legs 41' and 41" being arranged to clamp another connection bar 10' at a second position B with a distance from the first position so as to retain the clamping force and establish a stable mechanical and electrical connection.
  • the clamping devices are made of conductive and flexible material for conducting electricity to the coil and being able to retain a clamping force on the connection bars 10, 10' of the input terminals 14, 14' of the coil as well.
  • a fastening device may be designed in other forms and constructions as long as it achieves the same purpose as the above exemplified embodiments.
  • a guiding member in the form of grooves 17, 17' is provided on the casing 30 to be incorporated with a respective guiding member 27, 27' provided on the inner side of the sidewall 25, 25' and protruding inwardly.
  • FIGS. 6a to Figure 6c illustrate how the module 20 is mounted to the frame according to the embodiment of the invention shown in Figures 2-4. As shown in Figure 6a, other parts of a contactor are mounted prior to the mounting of the module.
  • the guiding member 27, 27' of the module is inserted in the guiding member 17, 17' of the frame. The module is thereafter directed by the guiding members and moves downward to the connection bars of the coil.
  • clamping devices reach connection bars and thereon the connection bars are clamped by the legs of the clamping devices, and in the meantime the fastening member 28, 28' of the module reaches on a level with the openings 12, 12' of the frame, thus achieving a snap-fit joint between the module and the frame.
  • FIGS 7a-c illustrate mounting steps according to another embodiment of the invention.
  • the module is mounted from side.
  • male connectors reach female connectors arranged on one side of the input terminals of the coil and thereon the female connectors get hold of the male connectors, and in the meantime the fastening member 28, 28' of the module reaches on a level with the openings 12, 12' of the frame, thus achieving a snap-fit joint between the module and the frame.
  • the fastening member 28, 28' of the module reaches on a level with the openings 12, 12' of the frame, thus achieving a snap-fit joint between the module and the frame.
  • FIG. 11 A cross-sectional view of the completely assembled contactor is given in Figure 11 , according to one of embodiments of the invention.
  • Figures 8a-b, 9a-b and 10a-b show respectively other three embodiments of the module with a perspective and a corresponding side view.
  • the top wall of the module is extended to cover the most part of the coil.
  • two sections are provided on each side of the module and the sections are connected by a bridge.
  • One of the sections includes the electric circuit board.
  • the module may be arranged to be connected to the base unit.
  • the module is extended with another section that may include another electric circuit board, for example.
  • the module is detachable from the frame and easy to be connected to the frame.

Abstract

La présente invention porte sur un contacteur (1), qui comprend un bâti comprenant une unité de base (3), un enroulement (4) disposé sur l'unité de base (3) et comprenant des bornes d'entrée (14, 14'), et un module (20) comprenant une carte de circuits (22) pour commander électriquement l'enroulement (4), la carte de circuits comprenant des bornes d'entrée (24, 24') pour l'alimentation et des bornes de sortie pour fournir une connexion électrique à l'enroulement. Le contacteur comprend de plus un dispositif de fixation (26, 26', 10, 10', 36, 36', 16, 16') disposé pour connecter mécaniquement et électriquement l'une des bornes de sortie à une borne d'entrée correspondante de l'enroulement, et le module est conçu de telle sorte qu'il est relié au bâti en même temps que le dispositif de fixation connecte la borne de sortie de la carte de circuits à la borne d'entrée.
PCT/EP2009/066617 2009-12-08 2009-12-08 Contacteur WO2011069536A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP09765109.5A EP2510531B1 (fr) 2009-12-08 2009-12-08 Contacteur
PCT/EP2009/066617 WO2011069536A1 (fr) 2009-12-08 2009-12-08 Contacteur
CN200980162801.5A CN102648508B (zh) 2009-12-08 2009-12-08 一种接触器
US13/491,103 US8742875B2 (en) 2009-12-08 2012-06-07 Contactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/066617 WO2011069536A1 (fr) 2009-12-08 2009-12-08 Contacteur

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/491,103 Continuation US8742875B2 (en) 2009-12-08 2012-06-07 Contactor

Publications (1)

Publication Number Publication Date
WO2011069536A1 true WO2011069536A1 (fr) 2011-06-16

Family

ID=42340459

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/066617 WO2011069536A1 (fr) 2009-12-08 2009-12-08 Contacteur

Country Status (4)

Country Link
US (1) US8742875B2 (fr)
EP (1) EP2510531B1 (fr)
CN (1) CN102648508B (fr)
WO (1) WO2011069536A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2970379B1 (fr) * 2011-01-10 2013-02-15 Abb France Dispositif de raccordement adaptable a differents contacteurs
CN105609378B (zh) * 2015-10-16 2018-01-26 天水二一三电器有限公司 用于电磁式接触器线圈的连接组件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29610329U1 (de) * 1996-06-12 1996-08-14 Siemens Ag Anschlußmodul
DE102004009650B3 (de) * 2004-02-27 2005-07-07 Moeller Gmbh Schaltschütz mit Anschlussmodul zum Ansteuern des Magnetantriebes
CN101017748A (zh) 2006-12-29 2007-08-15 浙江正泰电器股份有限公司 接触器
EP1918958A1 (fr) * 2006-11-02 2008-05-07 ABB France Contacteur à raccordement modulaire de la bobine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2638563B1 (fr) * 1988-10-27 1990-12-14 Telemecanique Electrique Dispositif de securite pour appareil de commutation realise par l'assemblage de plusieurs elements modulaires amovibles
JP3457340B2 (ja) * 1992-08-27 2003-10-14 三菱電機株式会社 電磁コイル
EP0727802A3 (fr) * 1995-02-16 1997-12-10 Rockwell Automation AG Dispositif de commutation électromagnétique, en particulier contacteur
CH689526A5 (de) * 1995-03-25 1999-05-31 Rockwell Automation Ag Sockelteil eines elektromagnetischen Schaltgeraetes, insbesondere eines Schuetzes.
DE10013353C2 (de) * 2000-03-17 2002-02-07 Siemens Ag Elekromagnetisches Schaltgerät, insbesondere Schütz
DE10338122B3 (de) * 2003-08-15 2005-04-21 Moeller Gmbh Schaltgeräte-Leiterplatten-Kombination
WO2011015232A1 (fr) * 2009-08-04 2011-02-10 Abb Ab Dispositif de commutation
WO2011015233A1 (fr) * 2009-08-04 2011-02-10 Abb Ab Dispositif de commutation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29610329U1 (de) * 1996-06-12 1996-08-14 Siemens Ag Anschlußmodul
DE102004009650B3 (de) * 2004-02-27 2005-07-07 Moeller Gmbh Schaltschütz mit Anschlussmodul zum Ansteuern des Magnetantriebes
EP1918958A1 (fr) * 2006-11-02 2008-05-07 ABB France Contacteur à raccordement modulaire de la bobine
US20080106362A1 (en) 2006-11-02 2008-05-08 Abb France Contactor with modular connection of the coil
CN101017748A (zh) 2006-12-29 2007-08-15 浙江正泰电器股份有限公司 接触器
WO2008080301A1 (fr) * 2006-12-29 2008-07-10 Zhejiang Chint Electrics Co., Ltd Contacteur

Also Published As

Publication number Publication date
CN102648508A (zh) 2012-08-22
EP2510531A1 (fr) 2012-10-17
US20120242433A1 (en) 2012-09-27
EP2510531B1 (fr) 2018-06-27
CN102648508B (zh) 2015-12-16
US8742875B2 (en) 2014-06-03

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