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
  • H01H50/041—Details concerning assembly of relays
  • H01H50/042—Different parts are assembled by insertion without extra mounting facilities like screws, in an isolated mounting part, e.g. stack mounting on a coil-support
• • 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
  • H01H50/08—Indicators; Distinguishing marks

Definitions

• the present invention relates to an electromagnetic relay of the type of relays that essentially incorporates a coil, a core, an armature, fixed and mobile contact sheets with 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.
• circuits can be located outside the relay for which it is necessary to have a socket specially designed 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 in the market or even already installed in the control equipment, facilitating maintenance work.
• the electromagnetic relays conventionally incorporate a coil mounted on a support from which a magnetic plate, as well as a rocker in which are mounted mobile contact plates that move by tilting the rocker towards contact plates are mounted fixed due to the excitation to which the coil is subjected.
• protection circuits In these relays the incorporation of protection circuits is in any case limited to very simple circuits, composed of few components, which have to be distributed through the holes that allow the mechanics of the relay, without hindering the movements of the moving parts and maintaining the necessary insulations.
• the connection between the components is normally made by means of welded cables, so that the isolation distances mentioned are seriously affected and the labor used is expensive.
• 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, an armature on which the plates, terminals and magnetic plate, a reel for coil assembly and a base module are mounted.
• 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 in height by a horizontal partition that forms the basis of a small receptacle defined on the upper face of the Case.
• the circuit will therefore be housed in the aforementioned receptacle covered by an easily removable cover, which is removed to proceed to change the insert allowing this way the simple interchangeability of circuits in order to guarantee different applications of the relay.
• the base module is constituted by a base plate from which some lateral partitions show openings intended for the incorporation of anchoring means of the support and the reel of the coil.
• said base plate shows a series of openings through which the relay terminals protrude outwards.
• the mentioned armor is conceived as a support piece that integrates a series of vertical cavities destined to the incorporation of a movable sheet and fixed foils, as well as a signaling lever that indicates the relay activation situation.
• the interior structure has a recess that extends superiorly in a vertical position and that is enabled for the introduction of one of the arms of the magnetic circuit.
• the reel of the coil is constituted by a cylindrical portion topped in a lower laminar base that extends with respect to said portion, which has defined end grooves for the coupling of terminals.
• said cylindrical portion has a laminar upper base that extends on a promontory with a series of notches arranged in correspondence on the same vertical of the grooves of the lower base, these upper notches being conceived to facilitate the coupling of said terminals previously coupled to the lower notches.
• the mechanism incorporates for this purpose, the reinforcement that has a wide upper base located above the core of the coil, from which an inclined lower arm that is mounted on its upper part against a strap that constitutes an elastic element against the swinging, meeting the lower end of the arm arranged in contact on a pusher that acts by moving the signaling lever.
• the pusher incorporates a wide vertical front face on which the aforementioned arm of the rocker contacts, from which a rectangular ring that starts in the middle area with two opposing projections that link to the mobile blade in solidarity with its movement, counting said rectangular ring at its opposite end to that of the front face with a T-shaped hitch that is linked to the signaling lever.
• the mechanism thus conceived is in its resting position with the movable sheet in contact with one of the fixed blades.
• the rocker swings and at the same time causes the pusher to move with the lower end of its arm, while moving the moving sheet towards the other fixed blade, as well as the movement of the signaling lever that will show its ends through a window in the upper cover of the housing.
• Figure 1. Shows a perspective view of the elements that make up the electromagnetic relay housing and other internal elements constitute the relay.
• Figure 2. Shows a side view of the inside of the relay in the activated situation.
• Figure 3. Shows a side view of the reel carrying the coil.
• Figure 4. Shows a side view of the support of different relay elements.
• Figure 5. Shows a side view of the base of the relay housing.
• Figure 6. Shows a plan view of the relay base.
• Figure 7.- Shows a side view of the contact sheet support.
• Figure 8. Shows a plan view of the reel holder.
• Figure 9. Shows a schematic side view of the operation of the relay displacement mechanism.
• Figure 10.- Shows a schematic plan view of the operation of the relay displacement mechanism.
• the relay is based on a basic constitution that essentially incorporates a coil (1), a movable contact sheet (2) movable between two fixed contact sheets (3), an armature (11), a magnetic core (43) and its extension (33) and a signaling lever (4) of the relay activation situation.
• a casing (5) preferably of rectangular prismatic shape showing a receptacle (6) defined in its upper face which is inferiorly limited by a horizontal partition (10) that receives a circuit board
• circuit board (7) interchangeable, the circuit board (7) being covered inside the receptacle by means of a cover
• the circuit (7) has a LED (54) indicating the status, which allows viewing through a viewfinder (55) located on the cover (8).
• the horizontal partition (10) of the housing (5) shows a hole (41) for passage of terminals arranged in line (19), (45) and (47) that proceed of the coil and are introduced in holes (42) made in the interchangeable circuit board (7).
• the relay also has a support (9) Fig. 4, which incorporates a vertical recess (12) intended to house part of the magnetic core (33), as well as includes through cavities (13) intended to partially house the contact sheets fixed (3) and an intermediate cavity
• a reel (44) constituted by a cylindrical vertical portion (16) that houses the core of the relay (43) and where the coil (1) is wound up, which is finished off in a lower laminar base (17) that extends with respect to said portion (16), said lower base (17) having defined end grooves for the coupling of terminals (19) and (47), as well as having a laminar upper base (20) which extends in a promontory (21) that has a series of notches (22) arranged in correspondence in the same vertical of the notches of the lower base (17) in which the aforementioned terminals (19) and (47) are also incorporated.
• the reel holder (44) is attached to the base by means of the hooks (49).
• the terminals (19) Figure 3 have a projection (18) in their lower part, which allows their fixation in an ad hoc hollow of the lower notch (22).
• the beginning and end of the bobbin winding wire (1) is wound in the terminals (45) inserted in the upper part of the bobbin case (44).
• the sixth auxiliary terminal (47) is inserted into the slot (48), a terminal necessary for the case where an external control signal such as interlocking, etc. is required.
• the relay incorporates a base module (23) that has a flat base (24) with openings (25) for passage of one terminals, which incorporate openings (26) for introducing anchoring means (27) of the support structure (9), openings (28) for introducing anchoring means of said reel (44) and anchoring means (30) for introduction into openings (31) made in the side walls of the housing (5) in the situation of coupling of the support structure (9), of the reel (20) and of the housing (5) on the base module (23).
• the relay has a displacement mechanism constituted by an armature
• the lower cover (23) ensures the position of the input terminals (19), of the contact carrier sheets (3), of the mobile contact (2) and of the auxiliary terminal (47) that pass through the slots (25) and said cover ( 23) is fitted by fastening to the body (12).
• all terminals are located and fixed without requiring special tools or rivets or welds.

Landscapes

• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Electromagnets (AREA)
• Switch Cases, Indication, And Locking (AREA)
• Valve Device For Special Equipments (AREA)
• Cookers (AREA)
• Surgical Instruments (AREA)

Priority Applications (8)

Applications Claiming Priority (1)

Publications (1)

Family

ID=8302738

Family Applications (1)

Country Status (8)

Cited By (1)

Families Citing this family (18)

Citations (4)

Family Cites Families (4)

• 1998
  • 1998-10-20 DK DK98947563T patent/DK1059652T3/da active
  • 1998-10-20 AU AU94426/98A patent/AU9442698A/en not_active Abandoned
  • 1998-10-20 ES ES98947563T patent/ES2262243T3/es not_active Expired - Lifetime
  • 1998-10-20 EP EP98947563A patent/EP1059652B1/en not_active Expired - Lifetime
  • 1998-10-20 AT AT98947563T patent/ATE323944T1/de not_active IP Right Cessation
  • 1998-10-20 WO PCT/ES1998/000283 patent/WO2000024018A1/es not_active Ceased
  • 1998-10-20 DE DE69834273T patent/DE69834273T2/de not_active Expired - Fee Related
  • 1998-10-20 US US09/582,017 patent/US6498552B1/en not_active Expired - Fee Related

Patent Citations (4)

Non-Patent Citations (1)

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