EP2764527B1 - Unité de déclenchement pour actionner une unité de commutation mécanique d'un dispositif - Google Patents

Unité de déclenchement pour actionner une unité de commutation mécanique d'un dispositif Download PDF

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Publication number
EP2764527B1
EP2764527B1 EP12798206.4A EP12798206A EP2764527B1 EP 2764527 B1 EP2764527 B1 EP 2764527B1 EP 12798206 A EP12798206 A EP 12798206A EP 2764527 B1 EP2764527 B1 EP 2764527B1
Authority
EP
European Patent Office
Prior art keywords
circuit board
printed circuit
plunger
force
coil
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.)
Active
Application number
EP12798206.4A
Other languages
German (de)
English (en)
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EP2764527A1 (fr
Inventor
Wolfgang Feil
Martin Maier
Klaus Pfitzner
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.)
Siemens AG
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Siemens AG
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Filing date
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Publication of EP2764527A1 publication Critical patent/EP2764527A1/fr
Application granted granted Critical
Publication of EP2764527B1 publication Critical patent/EP2764527B1/fr
Active legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/01—Details
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2481—Electromagnetic mechanisms characterised by the coil design
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
    • H01H71/322—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with plunger type armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F2007/068—Electromagnets; Actuators including electromagnets using printed circuit coils
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
    • 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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/28—Electromagnetic mechanisms with windings acting in conjunction

Definitions

  • the invention relates to a trip unit for actuating a mechanical switching unit of a device for interrupting a supply line of a consumer.
  • a device for interrupting a supply line of a consumer is in particular a thermal overload relay, by means of which a motor or line protection is made possible.
  • the corresponding supply line of the motor to be monitored or the line to be monitored is passed over the device and monitored by means of a monitoring device for thermal overload. If a thermal overload on the motor or on the line is detected by the monitoring device, a mechanical switching unit is actuated by the monitoring device, so that the supply line routed via the device is interrupted by means of the mechanical switching unit.
  • an electrically conductive connection between an input terminal and an output terminal of the device can be interrupted by means of the mechanical switching unit.
  • the electrically conductive connection between the input terminal and the output terminal of the device in this case forms the supply line to be monitored.
  • the mechanical switching unit is usually triggered by an actuating element, so that then interrupted by the mechanical switching unit of the supply line (the guided over the device phase).
  • a mechanical force is exerted on the actuating element of the mechanical switching unit.
  • thermo-mechanical release (bimetallic release) is usually used as a monitoring device and trip unit due to the low cost level.
  • the bimetallic release is placed in the supply line to be monitored by means of the overload relay. Since the bimetallic release is in the supply line (in the main flow path of the consumer) it is heated differently depending on the current flow.
  • the bimetallic release in particular its bimetal, is deformed by the increased current flow in the supply line in such a way that a mechanical force is exerted on the actuating element of the mechanical switching unit by the bimetallic release, so that this is triggered thereby , Consequently, the monitored supply line is interrupted by means of the mechanical switching unit.
  • overload relays with electromagnetic tripping units are known in which the mechanical switching unit can be triggered by an electromagnetic release of the tripping unit. It can be distinguished between two trip units. There are trip units that provide the triggering energy for actuating the actuating element of the mechanical switching unit directly from the triggering electronics of the trip unit and trip units, which are constructed as electromechanically triggered energy storage device (Maglatch). The latter have the advantage that the tripping electronics must provide less tripping energy than is actually needed for operating the actuating element of the mechanical switching unit.
  • Maglatch electromechanically triggered energy storage device
  • the electromagnetic trip units usually include one wound on a bobbin Coil, wherein the coil terminals must be additionally connected via lines (coil connection cables) and / or connectors to the electronics of the trip unit.
  • An object of the present invention is to provide an improved trip unit for actuating a mechanical switching unit of a device for interrupting a supply line of a consumer.
  • This trip unit should preferably be compact, inexpensive and energy-optimized, so that it requires no electrical energy in the normal state and in the tripped state.
  • the mechanical switching unit should be able to be triggered with the lowest possible electrical tripping energy.
  • the DE 10 2010 012 801 A1 discloses a switch having switch contacts which are opened by means of a tripping shaft which is biased by a switch latch which is latched by means of an electromagnetic latching magnet having a ram held by a permanent magnet and a coil through which a current pulse is sent to trip which weakens the magnetic field of the permanent magnet until the release of the plunger.
  • a trip unit for actuating a mechanical switching unit of a device for interrupting a supply line of a consumer
  • the trip unit comprises a movably mounted plunger, which can assume a first and a second stop position, a force accumulator, in particular a spring, a holding means, in particular a permanent magnet, and a circuit board coil
  • the trip unit can assume a tripped state and a normal state, wherein the plunger in the tripped state in the first stop position and in the normal state in the first stop position
  • the first energy accumulator acts on the plunger with an energy storage force (F1) in the direction of the first stop position and holds the plunger with a holding force (F2) in the second stop position
  • activating the circuit board coil a Printed circuit board coil force can be generated, wherein the energy storage, the holding means and the circuit board coil are formed such that in the inactive state of the circuit board coil of the plunger in the
  • the device is preferably an overload relay.
  • An overload relay may be used to monitor the supply line of a load (e.g., electric motor) or a line for thermal overload. If a thermal overload is detected by the device, the supply line routed via the device is interrupted. To detect the thermal overload, the device comprises a monitoring device by means of which the consumer or the line can be monitored for thermal overload.
  • the trip unit includes the plunger, the energy accumulator, the holding means and the PCB coil. If an overload is detected by the monitoring device, then the mechanical switching unit of the device is actuated by means of the tripping unit, so that the monitored supply line is interrupted. The triggering of the mechanical switching unit takes place in particular via an actuating element of the mechanical switching unit.
  • the actuating element is preferably actuated / triggered directly by means of the plunger.
  • a printed circuit board coil force is generated via the printed circuit board coil, so that the plunger changes from the second stop position to the first stop position.
  • a mechanical force is exerted on the mechanical switching unit, in particular on the actuating element, so that triggers the mechanical switching unit and the supply line is interrupted.
  • the printed circuit board coil and preferably their leads are formed by the circuit board omitted in particular the currently customary separate components: bobbin, wound coil, coil connecting cables and connectors. This allows an extremely compact Beform achieved and an improved cost level compared to today's purely thermo-mechanical solutions can be realized.
  • Another advantage is that the actuation / release of the mechanical switching unit by means of an electronic pulse is possible. If the plunger is in the normal state, there is an overall force F ges acting on the plunger, which acts in the direction of the second stop (the holding force is greater than the force-storing force). If the energy store is a spring and the holding force is a permanent magnet, then the device can keep this position stable without additional electrical energy.
  • the circuit board coil is activated, ie it is traversed by current. Consequently, a magnetic field is formed by the PCB coil.
  • This magnetic field (PCB coil force) of the printed circuit board coil can be used, on the one hand, in such a way that the holding force of the holding means acting on the tappet is weakened.
  • the magnetic force (holding force) of the permanent magnet acting on the plunger is reduced by the magnetic field of the activated circuit board coil.
  • a force can be exerted on the plunger in the direction of the first stop position by the magnetic field of the printed circuit board coil.
  • a printed circuit board coil force force of the magnetic field of the PCB coil
  • F force of the magnetic field of the PCB coil
  • the movably mounted plunger is consequently moved in the direction of the first stop position.
  • the holding means is a permanent magnet and the energy storage device is a spring, it increases with increasing Removal of the holding means facing the end of the plunger from the force applied to the plunger force (F2) of the holding means from. The plunger thus automatically assumes the first stop position.
  • the printed circuit board coil force would thus only have to be applied until the force-storing force F1 acting on the tappet is greater than the holding force F2 acting on the tappet.
  • the PCB coil force must thus be applied only until the total force F ges outweighs in the direction of the first stop position. However, to increase safety, the PCB coil force can be maintained longer.
  • the plunger In the tripped state, the plunger is in the first stop position, the force storage force (F1) is greater than the holding force (F2). The plunger is thus in self-holding, so that no PCB coil force is required.
  • the mechanical switching unit is preferably placed inside the device in such a way that the actuation of the mechanical switching unit takes place by taking the first stop position through the plunger, so that an interruption of the supply line is brought about via the mechanical switching unit.
  • a state change for the plunger from the second stop position to the first stop position can thus be brought about by a brief activation of the printed circuit board coil by means of a current pulse.
  • the force acting on the plunger total force F ges approaches with increasing distance from the holding means of the force storage force (F1).
  • the force accumulator is designed such that the actuation of the mechanical switching element takes place only by the force acting on the plunger force storage force (F1).
  • An energy-optimized device can be provided, as there is no need for a constant electrical power supply for the trip unit, since preferably only for the tripping operation electrical energy must be provided in the form of a current pulse for the PCB coil.
  • the triggered state is preferably maintained by the force storage force (F1) of the energy storage.
  • the normal state is maintained by the holding force (F2) of the holding means.
  • a mechanical force must preferably be exerted on the ram by the customer so that the latter assumes the second stop position.
  • the plunger is preferably pushed into the second stop position.
  • the plunger is preferably made of ferromagnetic material.
  • the force acting on the plunger holding force F2 is directed in particular in the direction of the second stop position of the plunger.
  • the force acting on the plunger force storage force F1 is directed in particular in the direction of the first stop position of the plunger.
  • the first and second stop position of the movably mounted plunger is preferably in each case the end position of the plunger within the device.
  • the holding force (F2) acting on the plunger is greater than the force-storing force (F1) acting on the plunger so that the plunger lingers in the second stop position. There is thus no PCB coil force.
  • the force acting on the plunger total force F ges is directed in the direction of the two stop of the plunger.
  • the plunger is thus kept in the normal state only by the holding force F2 of the holding means. If the holding means is in the form of a permanent magnet and the force store is a spring, then no electrical energy source is necessary to maintain the normal state.
  • the force acting on the plunger force storage force (F1) is greater than that acting on the plunger in the activated state Holding force (F2), so that the plunger lingers in the first stop position.
  • Holding force (F2) There is no PCB coil force.
  • the force acting on the plunger total force F ges is directed in the direction of the first stop of the plunger. The plunger is thus held only by the force storage force F1 in the tripped state. If the holding means is designed as a permanent magnet and the energy store as a spring, then no electrical energy source is necessary for holding the tripped state.
  • the circuit board coil is formed in multiple layers.
  • a PCB coil can be laminated on one side. If the printed circuit board coil has a multilayer structure, layers of the turns of the coil are arranged in different planes of the printed circuit board. If the printed circuit board coil is laminated on two sides, for example, or layers of the turns of the coil are formed inside the printed circuit board, a multilayer printed circuit board coil is present.
  • the circuit board coil is formed within the circuit board.
  • the layers of the turns of the printed circuit board coil are thus arranged within the printed circuit board.
  • the printed circuit board of the printed circuit board coil comprises an evaluation unit for controlling the printed circuit board coil.
  • the circuit board coil can be activated so that a current flows through the windings of the circuit board coil and a magnetic field (PCB coil force) is generated.
  • the evaluation also takes place with the evaluation unit by means of the monitoring device detected sizes of the supply line.
  • connection lines between the evaluation unit and the circuit board coil, in particular their connection points, are also formed by the circuit board.
  • the evaluation unit activates the printed circuit board coil upon detection of a thermal overload of the consumer supplied with power via the device, so that the supply line to the consumer is interrupted.
  • the plunger surrounds a pot of ferromagnetic material, the plunger.
  • the plunger is surrounded in particular on its lateral surface and its side facing the retaining means from the pot.
  • the pot In the normal state, the pot preferably surrounds the lateral surface of the tappet 80%.
  • the bottom of the pot is preferably arranged below the holding means, so that the holding means between the holding means facing the end of the plunger and the bottom of the pot is arranged.
  • the ram protrudes easily out of the pot, but it may also be completely surrounded by the pot as well.
  • the pot of ferromagnetic material in particular the magnetic field of the PCB coil force is amplified. Furthermore, a targeted steering of the magnetic field of the printed circuit board coil, so that there is also an improved electromagnetic compatibility.
  • the trip unit in a pot consisting of ferromagnetic material to capsules.
  • the printed circuit board of the circuit board coil adjacent at the outermost turn of the circuit board coil at least one breakthrough and the pot is mechanically connected via this at least one breakthrough with the circuit board.
  • a good compromise between the best possible shielding and the requirements for mechanical stability is a printed circuit board coil connected to the rest of the printed circuit board by two to four bridges. In the openings, in particular slots, between the webs, the ferromagnetic pot is inserted through and is so well connected mechanically to the circuit board.
  • the at least one breakthrough framed at least 50% of the outermost turn of the circuit board coil is preferably mechanically connected to the printed circuit board only by means of two or three webs.
  • the aperture is preferably formed parallel to the outermost turn.
  • the holding means is arranged on a side surface of the printed circuit board coil and between the holding means and the printed circuit board coil, a plate of ferromagnetic material is arranged.
  • the magnetic field of the printed circuit board coil can thereby be improved and steered.
  • the ferromagnetic material plate preferably completely covers the side of the holding means facing the printed circuit board and / or the turns of the printed circuit board coil on the side facing the holding means.
  • a part of the lateral surface of the plunger is framed by the circuit board coil in the normal state.
  • the plunger preferably protrudes in the normal state with its aligned to the holding means end through the PCB coil.
  • the holding means In the triggered state of the plunger that protrudes the holding means preferably facing the end of the plunger no longer into the PCB coil inside.
  • the guidance of the plunger takes place via the side face of the pot facing the plunger.
  • the energy store is arranged between the pot and the plunger.
  • the energy accumulator is connected to the lateral surface of the plunger.
  • the force accumulator is an elastic element, in particular a spring, and / or the holding means is a magnet, in particular a permanent magnet.
  • a device for interrupting a supply line of a consumer, a mechanical switching unit and a trip unit, wherein the trip unit actuates the mechanical switching unit in the tripped state, so that the device interrupts the supply line of the consumer.
  • the trip unit serves to actuate the mechanical switching unit of the device.
  • the device is in particular a thermal overload relay.
  • a supply current path (phase) is provided via an input-side and output-side connection of the device.
  • a consumer can be performed by the device, wherein in the normal state of the trip unit of the input side terminal is electrically connected to the output side terminal and in the tripped state of the trip unit, the electrically conductive connection between the input side terminal is interrupted with the output side terminal.
  • the mechanical switching unit is actuated by the plunger. The operation of the mechanical switching unit breaks the supply current path.
  • FIG. 1 shows a schematic representation of a trip unit for actuating a mechanical switching unit of a device in the normal state.
  • the trip unit comprises a movably mounted plunger 1 made of ferromagnetic material, a pot 5 made of ferromagnetic material, a permanent magnet 3 as holding means 3, a spring 2 as energy storage 2, a plate 6 made of ferromagnetic material, a printed circuit board 8, which a printed circuit board coil 4, an evaluation unit. 9 and a connection line 11.
  • the printed circuit board coil 4 is connected via the connecting line 11 to the evaluation unit 9.
  • the evaluation unit 9 can activate the circuit board coil 4, so that a magnetic field is generated by the circuit board coil 4.
  • the circuit board coil 4 In the activated state of the circuit board coil 4, the circuit board coil 4 is traversed by current. In the non-activated state of the printed circuit board coil 4 there is no current flow through the printed circuit board coil 4.
  • the printed circuit board coil 4 is multi-layered (four-layered). That Layers 41, 42, 43, 44 are arranged on turns of the printed circuit board coil 4 in different planes of the printed circuit board 8.
  • the two outer sides of the printed circuit board 8 each have a layer 41,44 of turns.
  • two layers 42,43 are arranged on turns within the circuit board 8.
  • the circuit board 8 is thus laminated on two sides and has within the circuit board 8 also two layers 42,43 on turns on. There are thus four layers 41,42,43,44 before windings, which form the PCB coil 4.
  • the individual turns of the layers 41,42,43,44 of the printed circuit board coil 4 are interconnected.
  • the layer 41, 44 applied to the outer side of the printed circuit board comprises in each case one connection point 13. This connection point 13 is in particular the beginning of the outer turn of the respective layer 41, 44.
  • the inner turn of the layers 41, 44 applied to the outside of the printed circuit board are each connected to the inner turn of the adjacent layer 42, 43 on turns.
  • the inner layers 42,43 of turns are each connected to each other via the outer winding.
  • connection of the printed circuit board coil 4 to the evaluation unit 9 takes place via the connecting line 11.
  • the printed circuit board coil 4 is integrated in the printed circuit board 8 is, a simplified connection of the PCB coil 4 can be done with the evaluation unit 9.
  • the connecting line 11 is integrated into the printed circuit board 8, so that the printed circuit board coil 4, in particular their connection points 13, is electrically conductively connected to the evaluation unit 9 applied to the printed circuit board.
  • the evaluation unit 9 thus the circuit board coil 4 can be activated.
  • FIG. 1 the connection point 13 of the layer 41 applied on the upper side of the printed circuit board 8 is shown on turns.
  • the trip unit is used to actuate the mechanical switching unit of the thermal overload relay.
  • actuating the mechanical switching unit By actuating the mechanical switching unit, a supply line routed via the thermal overload relay can be interrupted.
  • a mechanical force must be exerted on an actuating element of the mechanical switching unit.
  • This mechanical force is exerted by the plunger 1 of the trip unit on the actuator.
  • the plunger 1 must take the first stop position (tripped state).
  • the plunger 1 is movably mounted within the trip unit.
  • the plunger 1 can take two positions. A first stop position (tripped state) and a second stop position (normal state).
  • FIG. 1 shows the normal state of the plunger 1.
  • the triggered state is indicated by the dashed line.
  • the plunger 1 can be moved only one of its longitudinal extent.
  • a force is exerted on the one hand by the spring 2 and by the permanent magnet 3.
  • the spring 2, which surrounds the plunger on its lateral surface exerts a spring force F1 in the direction of the first stop position on the plunger 1.
  • the spring 2 rests with one of its ends on the printed circuit board 8 and is in mechanical operative connection with the other of its ends with the plunger 1.
  • the spring 2 In the normal state, the spring 2 is in the compressed state.
  • the permanent magnet 3 is arranged on the underside of the printed circuit board 8 and holds the ferromagnetic plunger 1 in the second stop position. In the inactive state of the circuit board coil acting on the plunger total force F ges is directed toward the second stop position, so that the plunger maintains the normal state.
  • the force acting on the plunger 1 holding force F2 of the permanent magnet 3 is thus greater than the force acting on the plunger 1 spring force F1 of the spring 2 in the normal state of the plunger.
  • the plunger 1 protrudes with its end facing the permanent magnet 3 in the PCB coil 4 inside.
  • the plunger 1 can also protrude through the circuit board coil 4 with this end; i.e. the end of the plunger 1 (the end face) is below the underside of the circuit board. 8
  • the tappet 1 is encapsulated in a ferromagnetic pot 5.
  • This ferromagnetic pot 5 surrounds the plunger 1 in its normal state almost completely on its lateral surface. Further, the bottom of the circuit board coil 4 is covered by the bottom of the pot 5. The bottom of the pot 5 lies below the permanent magnet 3, so that it is located between the plunger 1 and the bottom of the pot 5. Further, a ferromagnetic plate 6 is disposed between the permanent magnet 3 and the circuit board coil 4. Through the ferromagnetic plate 6 and the ferromagnetic pot 5, the PCB coil force is amplified, the magnetic field of the PCB coil 4 directed and provided an optimized electromagnetic compatibility for the adjacent modules.
  • the supply line monitored by the overload relay must be opened, so that the electrically conductive connection to the load is prevented.
  • the mechanical switching unit must be actuated.
  • the evaluation unit 9 thus activates the printed circuit board coil 4, so that the total force F ges acting on the tappet 1 is changed.
  • the evaluation unit 9 only has to send a current pulse via the printed circuit board coil 4.
  • the current flow in the turns of the individual layers 41, 42, 43, 44 of the printed circuit board coil 4 produces a magnetic field (printed circuit board coil force) which reduces / dampens the magnetic force F 2 of the permanent magnet 3 acting on the tappet 1.
  • the holding force F2 acting on the plunger 1 is thereby minimized such that the spring force F1 is greater than the holding force F2.
  • the total force F ges acting on the plunger thus changes the direction so that the movably mounted plunger 1 moves in the direction of the first stop position.
  • the pot 5, the circuit board coil 4 and the plate 6 can also be exercised by the PCB coil 4, a PCB coil force on the plunger 1 in the direction of the first stop position.
  • the total force F ges acting on the tappet 1 is modified in such a way that it is aligned in the direction of the first stop position.
  • FIG. 2 shows a schematic representation of the in FIG. 1 shown trip unit in the tripped state. It can be seen that the plunger 1 in the tripped state of the trip unit further protrudes from the pot 5, as in the normal state of the trip unit. The plunger 1 is now in the first stop position. The second stop position of the plunger 1 is indicated by the dashed line. It can be seen that the plunger 1 further from the permanent magnet 3 is spaced as in the normal state of the trip unit.
  • the spring force F1 acting on the plunger 1 is greater in the tripped state than the holding force F2 acting on the plunger 1, so that the total force F ges acting on the plunger 1 is aligned in the same direction as the spring force F1.
  • the plunger is in self-holding. In this condition, no board coil force is necessary.
  • FIG. 3 shows a schematic representation of a plan view of the circuit board 8 of the trip unit 1 and 2 , Here, the trip unit without pot, spring, permanent magnet and plate is shown. From the trip unit, the plunger 1, the circuit board 8, the evaluation unit 9, the connecting line 11, the PCB coil 4 and openings 7 and webs 10 of the circuit board 8 can be seen.
  • the evaluation unit 9 is connected by means of the connecting line 11 to a connection point 13 of the printed circuit board coil 4.
  • This connection point 13 establishes an electrically conductive connection to the outer turn 12 of the layer 41 of the printed circuit board coil 4 arranged on the upper side of the printed circuit board 8.
  • This layer 41 on turns of the printed circuit board coil 4 has a contact point 14 at its innermost turn 15. With this contact point 14, the electrically conductive contact with the underlying layer of turns of the printed circuit board coil takes place 4.
  • a connection point of the arranged on the underside of the circuit board 8 layer of turns as well as contacting with the evaluation unit 9, so that there is a closed circuit.
  • the individual turns of the layers of the printed circuit board coil 4 are formed equivalent to the illustrated layer 41 on turns of the printed circuit board coil.
  • the individual turns of the layers of Leiteplattenspule are arranged in particular parallel to each other. Furthermore, they are preferably congruent in plan view, i. not laterally offset from each other, arranged. With a congruent arrangement of the windings, a straight line guided by a winding orthogonal to the printed circuit board would also cut the corresponding turn of the winding above or below it, provided that the turns of the individual layers are aligned parallel to the printed circuit board.
  • the printed circuit board 8 has four apertures 7 and four webs 10 adjacent to the outermost turn 12 of the upper layer 41.
  • the pot of the trip unit is formed in two parts and is guided with a first part through the openings 7.
  • the projecting through the apertures 7 parts of the pot are mechanically firmly connected to a bottom of the pot (second part of the pot), so that between the bottom of the circuit board, first a plate, then the permanent magnet and finally the bottom of the pot is arranged. In this way, a compact design can be achieved.
  • the circuit board coil 4 can be kept stable. In addition, it is ensured that the force exerted by the spring on the printed circuit board 8 leads to no damage to the printed circuit board 8. Via a web 10, the contacting of the connecting line 11 with the printed circuit board coil 4 is also carried out.
  • the trip unit can be made more compact and cheaper compared to conventional tripping units. Furthermore, the trip unit is energy-optimized, since it requires no electrical energy in the normal state and in the tripped state. Only for actuating the mechanical switching unit, the PCB coil must be activated so that the plunger 1 can actuate the actuator. The energy required to actuate the actuating element is applied by the spring, so that only a small electrical release energy for triggering the plunger 1 is necessary.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Electromagnets (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Relay Circuits (AREA)

Claims (14)

  1. Unité de déclenchement pour l'actionnement d'une unité mécanique de coupure d'un dispositif d'interruption d'une ligne d'alimentation d'un consommateur, l'unité de déclenchement ayant un poussoir ( 1 ) qui est monté mobile et qui peut prendre une première et une deuxième positions de butée, un accumulateur ( 2 ) de force, notamment un ressort ( 2 ), un moyen ( 3 ) de maintien, notamment un aimant ( 3 ) permanent et une bobine ( 4 ) de plaquette à circuit imprimé, l'unité de déclenchement pouvant prendre un état déclenché et un état normal, le poussoir ( 1 ) se trouvant, dans l'état déclenché, dans la première position de butée et, dans l'état normal, dans la deuxième position de butée opposée à la première position de butée, dans laquelle, dans l'état normal, l'accumulateur de force soumet le poussoir ( 1 ) à une force ( F1 ) dans la direction de la première position de butée et le moyen ( 3 ) de maintien maintient le poussoir ( 1 ) avec une force ( F2 ) de maintien dans la deuxième position de butée, dans laquelle, en activant la bobine ( 4 ) de la plaquette à circuit imprimé, on peut produire une force de bobine de la plaquette à circuit imprimé, 1' accumulateur ( 2 ) de force, le moyen ( 3 ) de maintien et la bobine ( 4 ) de la plaquette à circuit étant constitués de manière à ce que, dans 1' état inactif de la bobine ( 4 ) de la plaquette à circuit imprimé, le poussoir ( 1 ) reste dans la deuxième position de butée et, par une activation de la bobine ( 4 ) de la plaquette à circuit imprimé, le poussoir ( 1 ) prend la première position de butée, de manière à avoir l'état déclenché, la bobine ( 4 ) de la plaquette à circuit imprimé étant formée par la plaquette à circuit imprimé.
  2. Unité de déclenchement suivant la revendication 1, dans laquelle, dans l'état normal, la force ( F2 ) de maintien agissant sur le poussoir ( 1 ) est plus grande que la force ( F1 ) de 1' accumulateur de force agissant sur le poussoir ( 1 ), de manière à ce que le poussoir ( 1 ) reste dans la deuxième position de butée.
  3. Unité de déclenchement suivant l'une des revendications précédentes, dans laquelle, dans l' état activé, la force ( F1 ) de l' accumulateur de force agissant sur le poussoir ( 1 ) est plus grande que la force ( F2 ) de maintien agissant sur le poussoir ( 1 ), de manière à ce que le poussoir ( 1 ) reste dans la première position de butée.
  4. Unité de déclenchement suivant l'une des revendications précédentes, dans laquelle la bobine ( 4 ) de la plaquette à circuit imprimé est constituée de plusieurs couches.
  5. Unité de déclenchement suivant l'une des revendications précédentes, dans laquelle la bobine ( 4 ) de la plaquette à circuit imprimé est constituée au sein de la plaquette ( 8 ) à circuit imprimé.
  6. Unité de déclenchement suivant l'une des revendications précédentes, dans laquelle la plaquette ( 8 ) à circuit imprimé de la bobine ( 4 ) de la plaquette à circuit imprimé comprend une unité ( 9 ) d' exploitation pour commander la bobine ( 4 ) de la plaquette à circuit imprimé.
  7. Unité de déclenchement suivant la revendication 6, dans laquelle l'unité ( 9 ) d'exploitation active, à la détection d'une surcharge thermique du consommateur alimenté en énergie par le dispositif, la bobine ( 4 ) de la plaquette à circuit imprimé, de manière à interrompre la ligne d' alimentation allant au consommateur.
  8. Unité de déclenchement suivant l'une des revendications précédentes, dans laquelle un pot ( 9 ) en matériau ferromagnétique entoure le poussoir ( 1 ).
  9. Unité de déclenchement suivant la revendication 8, dans laquelle la plaquette ( 8 ) à circuit imprimé de la bobine ( 4 ) de la plaquette à circuit imprimé a, au voisinage de la spire ( 12 ) la plus extérieure de la bobine ( 4 ) de la plaquette à circuit imprimé, au moins une traversée ( 7 ) et le pot ( 5 ) est relié mécaniquement à la plaquette ( 8 ) à circuit imprimé par au moins une traversée ( 7 ).
  10. Unité de déclenchement suivant la revendication 9, dans laquelle la au moins une traversée ( 7 ) couvre au moins 50 % d'une spire ( 12 ) la plus extérieure de la bobine ( 4 ) de la plaquette à circuit imprimé.
  11. Unité de déclenchement suivant l'une des revendications précédentes, dans laquelle le moyen ( 3 ) de maintien est mis sur une surface latérale de la bobine ( 4 ) de la plaquette à circuit imprimé et une plaque ( 6 ) en matériau ferromagnétique est mise entre le moyen ( 3 ) et la bobine ( 4 ) de la plaquette à circuit imprimé.
  12. Unité de déclenchement suivant l'une des revendications précédentes, dans laquelle, dans l'état normal, une partie de la surface latérale du poussoir ( 1 ) est couverte par la bobine ( 4 ) de la plaquette à circuit imprimé.
  13. Dispositif, notamment relais de surcharge thermique, pour interrompre une ligne d'alimentation d' un consommateur, le dispositif comprenant une unité mécanique de coupure et une unité de déclenchement suivant l'une des revendications précédentes, dans lequel l'unité de déclenchement actionne à l'état déclenché l'unité mécanique de coupure de manière à ce que le dispositif interrompe la ligne d' alimentation du consommateur.
  14. Dispositif suivant la revendication 13, dans lequel une voie de courant d'alimentation ( phase ) d' un consommateur peut, par l'intermédiaire d' une borne du côté de l'entrée et d' une borne du côté de la sortie du dispositif, passer dans le dispositif, la borne du côté de l' entrée étant dans l'état normal de l'unité de déclenchement, reliée d'une manière conductrice de l'électricité à la borne du côté de la sortie et, lorsque l'unité de déclenchement est à l'état déclenché, la liaison conductrice de l'électricité entre la borne du côté de l'entrée et la borne du côté de la sortie est interrompue.
EP12798206.4A 2011-12-20 2012-11-20 Unité de déclenchement pour actionner une unité de commutation mécanique d'un dispositif Active EP2764527B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110089251 DE102011089251B4 (de) 2011-12-20 2011-12-20 Auslöseeinheit zum Betätigen einer mechanischen Schalteinheit einer Vorrichtung
PCT/EP2012/073052 WO2013092067A1 (fr) 2011-12-20 2012-11-20 Unité de déclenchement pour actionner une unité de commutation mécanique d'un dispositif

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EP2764527A1 EP2764527A1 (fr) 2014-08-13
EP2764527B1 true EP2764527B1 (fr) 2015-11-18

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EP12798206.4A Active EP2764527B1 (fr) 2011-12-20 2012-11-20 Unité de déclenchement pour actionner une unité de commutation mécanique d'un dispositif

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US (1) US9117612B2 (fr)
EP (1) EP2764527B1 (fr)
CN (1) CN104185891B (fr)
BR (1) BR112014015020B1 (fr)
DE (1) DE102011089251B4 (fr)
IN (1) IN2014KN01161A (fr)
WO (1) WO2013092067A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011089251B4 (de) * 2011-12-20 2014-05-22 Siemens Aktiengesellschaft Auslöseeinheit zum Betätigen einer mechanischen Schalteinheit einer Vorrichtung
CN107436625B (zh) * 2016-05-26 2022-03-29 富泰华工业（深圳）有限公司 一种触发机构及具有该触发机构的清洁装置
DE102017223316A1 (de) * 2017-12-20 2019-06-27 Siemens Aktiengesellschaft Wicklungsanordnung
DE102021207236B4 (de) 2021-07-08 2023-06-01 Siemens Aktiengesellschaft Magnetauslöser und Schutzschaltgerät mit einem Magnetauslöser

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DE19646243C1 (de) * 1996-11-08 1997-10-23 Siemens Ag Elektromagnetischer Differenzstrom-Auslöser
IT1249286B (it) * 1990-07-30 1995-02-22 Bticino Spa Elettromagnete di sgancio a magnete permanente per interruttori automatici
DE9421240U1 (de) * 1994-06-23 1995-08-31 Siemens Ag Leistungsschalter mit einem eisenlosen Stromwandler
DE19520220C1 (de) * 1995-06-01 1996-11-21 Siemens Ag Polarisiertes elektromagnetisches Relais
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DE202008016518U1 (de) 2008-12-12 2009-02-26 Bürkert Werke GmbH & Co.KG Elektromagnetischer Aktor
DE102009025513A1 (de) 2009-06-19 2010-12-30 Ellenberger & Poensgen Gmbh Elektronischer Schutzschalter
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DE102010012801A1 (de) 2010-03-19 2011-09-22 Siemens Aktiengesellschaft Schalter, insbesondere Leistungsschalter für Niederspannungen
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DE102011089251B4 (de) * 2011-12-20 2014-05-22 Siemens Aktiengesellschaft Auslöseeinheit zum Betätigen einer mechanischen Schalteinheit einer Vorrichtung

Also Published As

Publication number Publication date
BR112014015020A2 (pt) 2017-06-13
EP2764527A1 (fr) 2014-08-13
BR112014015020B1 (pt) 2021-06-15
US20140321023A1 (en) 2014-10-30
CN104185891A (zh) 2014-12-03
DE102011089251B4 (de) 2014-05-22
DE102011089251A1 (de) 2013-06-20
US9117612B2 (en) 2015-08-25
IN2014KN01161A (fr) 2015-10-16
CN104185891B (zh) 2016-08-24
WO2013092067A1 (fr) 2013-06-27

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