Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H50/00—Details of electromagnetic relays
  • H01H50/14—Terminal arrangements
• • 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
  • H01H50/041—Details concerning assembly of relays
  • H01H50/045—Details particular to contactors
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
  • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
  • H01H11/0031—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different types or orientation of connections to contacts
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H50/00—Details of electromagnetic relays
  • H01H50/54—Contact arrangements
  • H01H50/541—Auxiliary contact devices
  • H01H50/545—Self-contained, easily replaceable microswitches
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H50/00—Details of electromagnetic relays
  • H01H50/54—Contact arrangements
  • H01H50/546—Contact arrangements for contactors having bridging contacts
• • 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
  • H01H9/02—Bases, casings, or covers
  • H01H9/0264—Protective covers for terminals
• • 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
  • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
  • H01H9/342—Venting arrangements for arc chutes

Definitions

• the present invention relates to an electromechanical contactor comprising a body which is provided with elements for fixing to a support and which houses an electromagnet provided with a coil and a contact carrier movable according to the stress of the coil, the contactor comprising power terminals connected to fixed contacts, separable from movable contacts carried by the contact carrier, and control terminals connected to the coil.
• the contactor must therefore allow different terminals to be associated with the body. It is desirable to arrange the contactor to meet this need in the simplest and least costly manner, while facilitating the connection of external cables to the terminals.
• the invention aims to structure a contactor so that it can be easily and inexpensively provided with power connection terminals of different types.
• Another purpose is to structure such a contactor so as to facilitate its control and command wiring.
• the contact carrier is housed inside an invariable housing, that is to say independent of the nature of the power terminals; the power terminals are arranged in housings of a power terminal block which constitutes a part of the body of the contactor, the dimensions of the housings depending on the nature of the terminals considered, while the power terminal block comprises inter-terminal partitions depending on the nature power terminals and cooperating in abutment with corresponding shapes of the housing, such as guide and abutment grooves, independent of the nature of the power terminals.
• the contactor can thus be formed by assembling an invariable arcing box with variable power terminals according to the nature of the power terminals.
• the body of the contactor can advantageously include at its rear part a fixing base housing the coil and the fixed armature of the electromagnet and at its part before the power terminal block. The latter is assembled to the base, while the invariable case is a specific arc case located inside the body, and in particular fitted into the power case.
• the contact carrier may include control contacts located at the front of the power contacts, a control terminal being then installed on the power terminal to cooperate with the control contacts.
• Figure 1 is a schematic side view of the contactor according to the invention.
• Figure 2 is a similar exploded view of the contactor.
• Figure 3 is a schematic side view on a larger scale of the arc housing and the power terminal block.
• Figure 4 is a side sectional view of the contactor.
• Figure 5 is a right perspective view of internal elements of the contactor.
• Figure 6 is a left perspective view of the arc housing.
• Figure 7 is an exploded perspective view of the arc housing, the contact carrier, the power terminal block and the control / command panel, the fixed and movable contacts being absent.
• Figure 8 is a right perspective view of the base and the power and control / command panels.
• Figures 9 and 10 show a front view of two embodiments of the power terminal block.
• the multi-pole electromechanical contactor shown comprises a body, that is to say an outer casing, 10 having a front part 10a and a rear part 10b.
• the front part 10a houses power terminals A, control terminals B and control terminals C.
• the rear part 10b is provided with usual elements 11 for fixing to a support and houses an electromagnet 20.
• the body 10 includes ⁇
• the power terminals A are located in a main wiring plane PA to ensure the insertion of cables leading to a power source and to a load, to energize the neck lines - rant 13; in addition, in the front part 10a are located control terminals B defining a control wiring plane PB located at the front of the plane PA, for the insertion of cables connected to a control circuit, these terminals being connected to inside the contactor to the coil 21 of the electromagnet 20. In the front part 10a are finally located control terminals C defining a wiring plane PC located at the front of the plane PA and for example merged with the plane PB , these terminals being connected by cables or a bus to a control, signaling or similar circuit.
• the body or housing 10 of the contactor comprises a base 30 made of insulating material in the general shape of a parallelepiped cup; this base constitutes the essential of the aforementioned rear part 10b and it is therefore provided with fastening elements 11 and houses the coil 21 of the electromagnet 20, as well as the fixed armature 22 at E with the core of E arranged vertically .
• the contact carrier 17 houses the contact bridges 16 each carrying the two movable contacts 15 of the respective pole.
• the contact carrier 17 comprises a rear part 17a housing the power bridges 16 and a front part 17b housing the movable control contacts 18 intended to cooperate with fixed control contacts 19 as will be seen below.
• the contact carrier 17 has forms of interlocking ment 17c provided for actuating contacts specific to an additive attached to the front of the contactor.
• the coil 21 has an insulating carcass 24 carrying the coil 25 and provided with two coil terminals 26 intended to be connected to the control terminals B.
• the above connection is made by means of respective conductive bars 27 oriented substantially perpendicular to the front face. of the contactor, these bars being housed in transverse grooves 28 provided on the outside of the arc housing 40.
• the arc housing 40 has a stepped shape, namely a stage defining the wiring plan PA, dedicated to the connection of power contacts - power terminals and capped by a power terminal block 50, and a stage defining the wiring plan PB, PC, dedicated to the connection of control / command contacts - control / command terminals and capped by a control / command panel 60.
• the arc housing 40 is formed by assembling two half-housings 40a, 40b along a horizontal plane which may be the median plane Q of the contactor or a plane parallel to Q.
• Each half-housing 40a, 40b comprises internal partitions 41 intended to ensure adequate insulation between the power contacts of the various poles, but is by against without external insulation partitions between the power terminals; each half-housing has guides and grooves 42 making it possible to set up and position inter-terminal isolation partitions 51 provided in the power terminal block 50.
• shape elements 44 At the front of the arc housing 40 are provided shape elements 44 allowing the attachment of a front additive to the contactor.
• each partition 51 has a rear portion 51a which enters a corresponding groove 42a located behind the fixing pads 13 adjacent; the partition 51 also offers a recessed part 51b which penetrates into a corresponding groove 42b situated at the level of the active part (screw-ether, elastic cage, etc.) of the power terminal A.
• the part of the partition situated towards the median plane Q of the contactor comprises two slides 51c which cooperate with horizontal grooves 42c (see also Figures 9,10). It can be seen that the grooves 42a, 42b, 42c determine, with the associated elements of the partitions 51, baffles increasing the isolation distance between power conducting parts.
• the power terminal block has a wall 52 Q 'plane parallel to the median plane Q of the contactor and serving as the base plane for the terminal.
• the power terminal block 50 can be adapted to different types of connection without the arc housing having to be modified. It is indicated by way of example in FIGS. 9 and 10 the addition to the arc housing of a terminal block 50-1 with elastic terminals A1 and respectively of a terminal block 50-2 with screw terminals A2. As can be seen in FIGS. 9 and 10 the addition to the arc housing of a terminal block 50-1 with elastic terminals A1 and respectively of a terminal block 50-2 with screw terminals A2. As can be seen in FIGS.
• the space 53 allocated to the active or movable part of the terminal A between the wall 52 and the adjacent external wall 54 of plane Q "of the terminal block has a variable volume in height (direction Y) and in depth (direction X) while the arc housing remains the same
• the terminal block has front openings 55 allowing access to a terminal operating tool and upper or lower openings 56 located in the PA wiring plan and used for the introduction of power cables, the openings 55, 56 opening into the space 53.
• a decompression space 57 is formed between the wall 52 of the terminal block and a parallel wall 43, provided with holes d 'vent, of the arc box.
• Terminal block 50 offers a window 58 at the front through which the front part of the arc box 40 passes.
• a command / control terminal block 60 is assembled at the front of the contactor body, this terminal block having front openings 61 allowing access to a terminal operating tool and upper or lower openings 62 situated in the plane PB, PC wiring and used for the introduction of command and control cables.
• the terminal block 60 has a template which allows it to be embedded in the window 58 of the power terminal block 50 and it is provided with a front opening 63 for passage for the front part of the arc housing 40.
• the body of the contactor is formed by the assembly of the power terminal block and the base, so that these two elements form the external parison of the contactor and completely envelop the arc housing.
• the power terminal block 50 is fixed by all usual means to the base 30 and the command / control terminal block 60 is fixed by all usual means to the terminal block 50 and / or to the arc housing 40.

Landscapes

• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Connections Arranged To Contact A Plurality Of Conductors (AREA)
• Arc-Extinguishing Devices That Are Switches (AREA)
• Switch Cases, Indication, And Locking (AREA)
• Details Of Connecting Devices For Male And Female Coupling (AREA)
• Electromagnets (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9533634

Family Applications (1)

Country Status (16)

Cited By (1)

Families Citing this family (7)

Citations (4)

Family Cites Families (9)

• 1998
  • 1998-12-04 FR FR9815382A patent/FR2786922B1/fr not_active Expired - Fee Related
• 1999
  • 1999-12-02 ES ES99973347T patent/ES2263299T3/es not_active Expired - Lifetime
  • 1999-12-02 CN CNB998032018A patent/CN1174452C/zh not_active Expired - Lifetime
  • 1999-12-02 KR KR10-2000-7008490A patent/KR100384341B1/ko active IP Right Grant
  • 1999-12-02 DE DE69931468T patent/DE69931468T2/de not_active Expired - Lifetime
  • 1999-12-02 BR BRPI9909321-9A patent/BR9909321B1/pt not_active IP Right Cessation
  • 1999-12-02 TR TR2000/02280T patent/TR200002280T1/xx unknown
  • 1999-12-02 JP JP2000587346A patent/JP2002532825A/ja active Pending
  • 1999-12-02 AU AU13935/00A patent/AU756625B2/en not_active Ceased
  • 1999-12-02 WO PCT/FR1999/002986 patent/WO2000034970A1/fr active IP Right Grant
  • 1999-12-02 RU RU2000122904/09A patent/RU2232443C2/ru not_active IP Right Cessation
  • 1999-12-02 EP EP99973347A patent/EP1053554B1/fr not_active Expired - Lifetime
  • 1999-12-02 PT PT99973347T patent/PT1053554E/pt unknown
  • 1999-12-02 AT AT99973347T patent/ATE327566T1/de active
  • 1999-12-03 AR ARP990106178A patent/AR021543A1/es active IP Right Grant
  • 1999-12-04 TW TW088121245A patent/TW495781B/zh not_active IP Right Cessation
• 2009
  • 2009-10-16 JP JP2009239727A patent/JP4808805B2/ja not_active Expired - Lifetime

Patent Citations (4)

Also Published As

Similar Documents

Legal Events