Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H50/00—Details of electromagnetic relays
  • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
  • H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H50/00—Details of electromagnetic relays
  • H01H50/08—Indicators; Distinguishing marks
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H50/00—Details of electromagnetic relays
  • H01H50/54—Contact arrangements
  • H01H50/56—Contact spring sets
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H50/00—Details of electromagnetic relays
  • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
  • H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
  • H01H50/642—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement intermediate part being generally a slide plate, e.g. a card
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H50/00—Details of electromagnetic relays
  • H01H50/02—Bases; Casings; Covers
  • H01H50/021—Bases; Casings; Covers structurally combining a relay and an electronic component, e.g. varistor, RC circuit
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H50/00—Details of electromagnetic relays
  • H01H50/02—Bases; Casings; Covers
  • H01H50/026—Details concerning isolation between driving and switching circuit

Definitions

• the present invention relates to an electromagnetic relay of the type of relays that essentially incorporate a coil, a core, an armature, fixed and other mobile contact plates with their corresponding terminals, as well as signaling elements of the mode of operation of the relay.
• the relay object of the present invention aims to meet the demands of current technology in the applications of these components, mainly in those related to industrial process automation systems in which they intervene, without prejudice to observe, visually the state "relay operated” .
• the recommendations published in the Low Voltage Directive regarding the application of these components must also be complied with.
• PLC Programmed control systems
• suppressor circuits are used with diodes, varistors, capacitors, etc., which are connected in parallel or in series with the relay coil. These circuits can be located outside the relay for which it is necessary to have a specially designed socket for this purpose, depending on a single manufacturer or inside the relay. This last solution is preferred by the technical design and maintenance staff as it allows the use of standard sockets available on the market or even already installed in the control equipment, facilitating maintenance work.
• the multi-pole electromagnetic relays conventionally incorporate a coil mounted on a support, in addition it has an armature which is attracted by the core of the coil when it is excited, displacing when the armature is attracted a series of moving sheets, ceasing to contact With the contacts normally closed to contact the normally open contacts, these contacts are located on the base of the relay and connected to the external connection pins.
• the mobile plates are joined with the armor since in the displacement of the armor it drags said plates.
• the connection of the mobile sheets with the outer connection pins is done by means of a wiring, which is done manually, which means a great investment of both time and labor for the perfect connection.
• protection circuits are in any case limited to very simple circuits, composed of few components, which have to be distributed through the holes allowed by the mechanics of the relay, without hindering the movements of the pieces mobile and maintaining the necessary insulation.
• the connection between the components is normally made by means of welded cables, so that the mentioned insulation distances are seriously affected and the labor used is expensive.
• the objective of this electromagnetic relay application is to overcome the previous problems that arise when it comes to achieving the connection between the mobile contacts and the connecting pins with the outside, avoiding having to make the connection on the basis to a wiring, and making said connection by means of a series of elements that facilitate assembly automatically without having to resort to wiring.
• the electromagnetic relay proposed by this invention covers the expectations exposed to full satisfaction, being essentially structured by means of an easily assembled multimodular assembly that basically has a housing that has a receptacle for the incorporation of an interchangeable circuit insert, a base plate on which the sheets, terminals, a magnetic circuit and a reel for coil assembly.
• the support and the spool of the coil with its different elements are mounted on the base module, all of which are encompassed within a wide cavity defined in the housing.
• the housing shows a rectangular prismatic configuration opened by its lower face that gives way to said internal cavity, which is internally limited by a horizontal partition that forms the basis of a small receptacle defined on the upper face of the housing, and limited in length by another vertical partition.
• the circuit will therefore be housed in the aforementioned receptacle covered by an easy-to-disassemble cover, which is removed to proceed to change the printed circuit board, thus enabling the simple exchangeability of circuits in order to guarantee different applications of the relay.
• said base plate shows a series of openings through which the relay terminals protrude outwards.
• the reel of the coil is constituted by a cylindrical portion topped in a laminar upper base that is extends with respect to said portion, which has defined notches defined for the coupling of terminals.
• the dragging of the mobile contacts is achieved by means of a plastic piece, which is linked by some lugs to the moving part or armor in some recesses that it has, since through the windows of said plastic piece the bridges that are passed They are also connected to the mobile contacts. That same plastic piece and through other windows arranged on it transmits the movement to a plastic signaling piece that allows us to know the state of the relay.
• Figure 1 Shows the front view of the electromagnetic relay object of the invention.
• Figure 2. Shows a side view of the relay in which the different elements can be distinguished.
• Figure 3.- Shows the rear view of the relay.
• Figure 4 Represents the signaling part in front view Figure 5.- Represents the insulating part responsible for transmitting the movement to the moving contacts when the coil is excited.
• the spool (21) of the coil (4) is positioned by means of the two partitions (34) which extend from the base plate (11) and remain adjusted in the spool covers.
• the insulating part (8) is responsible for moving the mobile contacts (6), for which said part (8) is attached to the moving part (5) of the magnetic circuit, the union being made by means of two lugs (27) provided by the part (8), which fit into the holes (29) of the part (5), such that when the moving part (5) moves it transmits the movement to the insulating part (8) ), which in turn transmits the movement to the mobile contacts (6) through the windows (26).
• the movement of the mobile contacts (6) is carried out simultaneously, opening the normally closed contacts (9) and closing the normally open contacts (7), a fact that occurs when the coil receives an adequate voltage, then the armature (5) It is attracted by the magnetic circuit and displaces the piece (8).
• the mobile sheets (6) are riveted or welded to the bridges formed by the pieces (12) that are bent in such a way that their lower ends form the terminals (12a). Said pieces (12) are duly guided and isolated from each other by means of the pieces (10) and (10a), which extend from the support plate (11).
• the insulating piece (8) is designed in such a way that there are arranged a series of windows (26) and (28), where the windows (26) are arranged and sized in coincidence with the heads of the bridges (12) of so that it can be introduced by the upper part of the bridges (12) so that when the piece is moved (8) it simultaneously displaces all the mobile sheets (6).
• the windows (26) are arranged and sized in coincidence with the heads of the bridges (12) of so that it can be introduced by the upper part of the bridges (12) so that when the piece is moved (8) it simultaneously displaces all the mobile sheets (6).
• FIG 5 we can position the mobile sheets (6) with respect to the windows (26).
• this relay has a mechanical signaling, made which is achieved by the insulating signaling piece (22).
• said piece (22) which consists of two pins (23) which pass through the windows (28) of the piece (8) and pivot inside the cavity (30) so that when moved the piece (8) drags in its movement to the piece (22) whose upper part ends in the flag (24) that is visible from the outside of the relay through a transparent window practiced and conveniently located in the top cover of the relay ( 19) when activated and hidden when deactivated.
• the housing (20) of the relay which is preferably made of transparent insulating material, is open at its upper end (33), and has a box (13) formed by the lower partition (14) and the vertical partition (31), where said cavity is intended to house a printed circuit board (15) which has a series of electronic components (35) for relay protection.
• Said printed circuit (15) has a series of tinned holes arranged to coincide with the terminals (16) and (17) corresponding to the coil terminals (4).
• the terminals (16) are inserted in the reel (21) and the terminals (17), which are an extension of the terminals (18), are guided by the channels made in the top cover of the reel (21).
• the arrangement of holes and terminals is preferably in line to facilitate automatic welding of these terminals on the printed circuit board.
• the cover (19) has made an opening to see the display of a LED indicator indicating the state of the relay, as well as another opening through which you can see the flag (24) of the plastic part (22) of signaling , so that the flag (24) faces the opening made on the cover (19) of the relay.
• the cover (19) also has a housing to hold a label.
• the cover of the relay cover (19) is preferably opaque and is coupled to the housing (20) by appropriate anchors so that it completely closes the upper open part of the cover (33).
• the box that houses the printed circuit and its components is thus closed, guaranteeing total isolation between said components and the conductive parts (12). Therefore there are defined three zones inside the housing (20), the area where the coil is housed, the area where the printed circuit board is housed and the contact area, thus complying with the insulation recommendations of the Standard Low voltage.

Landscapes

• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Switch Cases, Indication, And Locking (AREA)
• Surgical Instruments (AREA)
• Valve Device For Special Equipments (AREA)
• Cookers (AREA)
• Electromagnets (AREA)
• Power Steering Mechanism (AREA)
• Ink Jet Recording Methods And Recording Media Thereof (AREA)
• Control Of El Displays (AREA)
• Emergency Protection Circuit Devices (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8311062

Family Applications (1)

Country Status (7)

Cited By (2)

Families Citing this family (2)

Citations (4)

• 1999
  • 1999-12-24 ES ES009902842A patent/ES2160083B1/es not_active Expired - Fee Related
• 2000
  • 2000-06-12 AU AU52230/00A patent/AU5223000A/en not_active Abandoned
  • 2000-06-12 DE DE60009344T patent/DE60009344T2/de not_active Expired - Fee Related
  • 2000-06-12 AT AT00936910T patent/ATE262730T1/de not_active IP Right Cessation
  • 2000-06-12 ES ES00936910T patent/ES2219347T3/es not_active Expired - Lifetime
  • 2000-06-12 DK DK00936910T patent/DK1241696T3/da active
  • 2000-06-12 WO PCT/ES2000/000210 patent/WO2001048777A1/es active IP Right Grant
  • 2000-06-12 EP EP00936910A patent/EP1241696B1/de not_active Expired - Lifetime

Patent Citations (4)

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