EP3465723B1 - Electromagnetic switch - Google Patents
Electromagnetic switch Download PDFInfo
- Publication number
- EP3465723B1 EP3465723B1 EP17725238.4A EP17725238A EP3465723B1 EP 3465723 B1 EP3465723 B1 EP 3465723B1 EP 17725238 A EP17725238 A EP 17725238A EP 3465723 B1 EP3465723 B1 EP 3465723B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- deformable
- transmission element
- tongue
- force transmission
- force
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 125
- 239000000463 material Substances 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 210000005182 tip of the tongue Anatomy 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/001—Means for preventing or breaking contact-welding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
- H01H15/02—Details
- H01H15/06—Movable parts; Contacts mounted thereon
- H01H15/10—Operating parts
- H01H15/102—Operating parts comprising cam devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/60—Contact arrangements moving contact being rigidly combined with movable part of magnetic circuit
-
- 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
- H01H51/00—Electromagnetic relays
- H01H51/22—Polarised relays
- H01H51/2272—Polarised relays comprising rockable armature, rocking movement around central axis parallel to the main plane of the armature
- H01H51/2281—Contacts rigidly combined with armature
- H01H51/229—Blade-spring contacts alongside armature
-
- 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
- H01H9/0066—Auxiliary contact devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/064—Limitation of actuating pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2225/00—Switch site location
- H01H2225/014—Switch site location normally closed combined with normally open
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/32—Latching movable parts mechanically
- H01H50/326—Latching movable parts mechanically with manual intervention, e.g. for testing, resetting or mode selection
Definitions
- the present invention relates to an electromagnetic switch.
- Electromagnetic switches which are designed, for example, as relays, generally include an armature, which can be designed as a rocker armature.
- armature which can be designed as a rocker armature.
- a lever can be used which changes the position of the armature so that the contact springs coupled to the armature perform a switching movement and the contacts of the relay can be opened or closed.
- the contacts may, however, temporarily weld.
- manual actuation of the lever can damage the contact springs in the relay.
- the DE 102012006438 propose to increase the contact areas in the relay, which reduces the likelihood of the contacts becoming welded.
- the object of the present invention is to create a concept for avoiding damage to an electromagnetic switch of the aforementioned type in the event of a fault.
- the invention is based on the knowledge that the above object can be achieved by limiting the forces which can be transmitted from a switch to an armature of an electromagnetic switch, for example a relay. In this way, in particular, plastic deformation of components of the electromagnetic switch, for example contact springs, for example in the case of welded contacts, can be prevented.
- the object is achieved by an electromagnetic switch which has an armature and a slide which can be moved manually to operate the armature.
- the electromagnetic switch according to the invention furthermore has a deformable force transmission element which is arranged between the slide and the armature.
- the slide When manually operated, the slide can be pressed against the deformable force transmission element with a pressing force in order to operate the armature.
- the slide exerts forces on the force transmission element, which transmits it to the armature. This allows the armature to be operated manually from the outside using the slide.
- the deformable force transmission element is deformable when a contact force threshold value is exceeded by the contact force. This limits the contact pressure that can be transmitted from the slide to the armature.
- another actuating element for example a pressure switch or a lever, can be used for manual actuation, provided that this is suitable for transmitting the force applied by an operator to the force transmission element. If the force applied by the operator to the slide exceeds a threshold value, the force transmission element is deformed and its deformation ensures that the force transmitted by the force transmission element to the armature does not exceed the threshold value.
- the threshold value is chosen so that it does not yet lead to a plastic deformation of components, for example the contact springs of a relay, and thus to permanent damage to the components of the electromagnetic switch if, for example, contacts of the switch are welded and the user tries to remove the contacts to be released from each other again by manual operation
- the threshold value can be selected, for example, so that it corresponds to the force that a magnet system of the electromagnetic switch would exert on the armature, also taking into account overexcitation.
- the limitation of the contact force is caused by the deformation of the force transmission element when the threshold value is exceeded. Even with lower forces, a certain deformation of the force transmission element can already occur, but this does not yet lead to a limitation of the contact pressure. It is therefore always ensured that the forces transmitted to the armature by the force transmission element are at least so great that the contacts of the electromagnetic switch in a fault-free state Switch can be opened and closed.
- the contact force can also increase during the deformation of the force transmission element and then, when the slide has reached its maximum displacement path when it is moved by the operator, it can reach the contact force threshold value so that it is ensured that over the entire displacement path of the slide and regardless of the forces applied to the slide, the contact force threshold is not exceeded.
- An electromagnetic switch designed in accordance with the invention is characterized primarily by the fact that the operator uses the slide or another actuating element to constructively limit the other components of the electromagnetic switch in such a way that permanent damage to components, for example contact springs of the electromagnetic Switch is effectively prevented.
- the deformable force transmission element is connected to the armature. This can take place in a materially or force-fit manner. A positive connection between the force transmission element and the armature is also possible.
- the force transmission element can for example be riveted, screwed, glued, soldered or welded onto the armature. This prevents the force transmission element from changing its position relative to the armature and also relative to the slide, which could lead to malfunctions or functional failures.
- the armature of the electromagnetic switch can be a rocker armature, but also another embodiment of an armature, for example a hinged armature.
- the deformable force transmission element is plastically or elastically deformable.
- the degree of deformability can be influenced on the one hand by the choice of material, but on the other hand in particular by the geometric design of the force transmission element.
- the deformation of the force transmission element is even if forces are applied over the entire sliding path of the slide that exceed the contact force threshold value, reversible. The forces applied by the operator thus do not lead to permanent deformation of the force transmission element.
- the limitation of the applied forces to the contact pressure threshold value brought about by the force transmission element is thus also possible in the case of multiple incorrect operations in which high forces are applied to the slide. There is no damage to the power transmission element.
- the force transmission element is plastically deformable, a single manual actuation in which the contact force threshold value is exceeded can lead to permanent deformation of the force transmission element, so that with repeated manual actuation, either the force transmission element does not limit the contact force to the contact force threshold value is, or in the case of manual actuation, the forces are no longer sufficient to open or close the contacts of the electromagnetic switch.
- the deformable force transmission element has a deformable tongue.
- the electromagnetic switch is designed so that the slide can be pressed against the deformable tongue.
- the deformable tongue is deformable when the contact pressure threshold value is exceeded in order to absorb the contact pressure of the slide.
- the tongue can have various designs, for example it can be triangular or wave-shaped, the triangle or the wave preferably pointing away from the armature in the direction of the slide.
- the tongue can have a flank against which the slide can come to rest when moving, so that the slide exerts the force for moving the armature on the tongue via the flank.
- the deformable force transmission element comprises a circumferential frame which is attached to the armature.
- a window is formed in the circumferential frame, the deformable tongue is fastened on one side to the circumferential frame, and when the deformable force transmission element is deformed, the tongue can at least partially be received by the window.
- the tongue and frame can be made in one piece.
- the Circumferential frame can have a section where the deformable tongue is attached to the frame, by means of which the force transmission element can be attached to the armature. When the force transmission element is viewed from above, the projection of the tongue can be completely surrounded by the frame.
- the deformable tongue is formed by a partially circumferential slot in a piece of material.
- the surrounding frame surrounds the partially surrounding slot.
- the tongue is thus cut free from the piece of material through the slot.
- the tongue can protrude from a plane of the piece of material, for example in a wave-shaped, triangular or curved shape, so that the slide can come into contact with the tongue during its movement in order to transfer these forces.
- the tongue can be produced, for example, by punching out a piece of material, with the punching also obtaining the circumferential frame and the partially circumferential slot.
- the punching can preferably only be carried out on a section of the piece of material, so that the piece of material has a further section in which there is no slot, and the tongue and the frame are attached to this further section, and by means of this further section the force transmission element on the Anchor is attachable.
- the tongue can protrude from the plane of the piece of material by subsequent deformation, for example triangular or wave-shaped as described above, and the surrounding frame can be pretensioned by applying forces so that, among other things, the pretensioning the contact force threshold is adjustable.
- the deformable tongue is shaped like a wave. It is designed and arranged between the slide and the armature that a wave flank of the deformable tongue can be acted upon by the slide.
- a wave flank of the deformable tongue can be acted upon by the slide.
- other geometrical shapes of the tongue are also possible which allow the forces exerted by the operator on the slide to be transmitted to the tongue, for example a triangular shape or a semicircular shape.
- the contact pressure threshold value is dependent on the geometric shape of the tongue.
- the properties of the tongue depend on its geometric shape.
- the stiffness of the tongue depends on the one hand on the material thickness, but in particular also on the design of the tongue. Different stiffnesses can be achieved through different designs.
- the tongue can also be provided with stiffeners or recesses in order to reduce the elasticity of the tongue, i.e. to make the tongue stiffer, or to increase the elasticity of the tongue, i.e. to reduce their rigidity, whereby the contact force threshold is reduced.
- the deformable force transmission element is designed in such a way that it transmits a contact force from the slide to the armature, provided that the contact force does not exceed the contact force threshold value. This actuates the armature. In contrast, a force that exceeds the contact force threshold value is only transmitted from the slide to the armature at the level of the contact force threshold value.
- the electromagnetic switch has an electromechanical contact. One or more electromechanical contacts can be provided. The electromechanical contact can be freely released in the non-fixed contact state, ie when the contacts are either not mechanically locked to one another or, in particular, do not adhere to one another by welding. The electromechanical contact can be released by exerting a release force by means of the armature.
- the release force is exerted on the contacts by the armature directly or via intermediate elements, the release force being formed from the force transmitted to the armature via the deformable force transmission element.
- the force transmitted via the force transmission element is formed from the force exerted by the operator on the slide, which the slide exerts on the force transmission element.
- the contact pressure threshold value is greater than the release force, so that a deformation of the force transmission element, which would lead to a limitation of the contact force to the contact force threshold value, does not occur leads to the fact that the contact pressure is limited to a value that is less than the release force to be applied to release the contact.
- the contacts when they are not fixed, for example not welded, can always be manually released from one another by means of the slide or, in another embodiment, can also be closed. If there are several contacts, one contact can be opened by operating the slide while another contact is closed at the same time. This is the case, for example, when the contacts are positively guided, so that the opening of one contact always leads to the closing of the other contact and vice versa.
- the deformable force transmission element is designed so that when the at least one electromechanical contact is in a fixed state, for example welded due to overcurrents, the electromechanical contact cannot be released by actuating the slide by the user.
- the deformable force transmission element deforms when the exerted force exceeds a contact pressure threshold value.
- the contact pressure threshold value is selected such that it is not possible to loosen fixed, in particular welded contacts due to forces exerted on the slide. This prevents the forces exerted by the slide on the armature via the force transmission element from causing components of the electromagnetic switch to be plastically deformed, resulting in irreversible deformations of components and thus permanent damage to the electromagnetic switch.
- the deformable force transmission element is designed so that it limits the contact force to a contact force threshold value so that the contact force threshold value is below the force that would lead to a plastic deformation of components, for example contact springs of the electromagnetic switch, so that the transmitted to the armature Forces always cannot lead to plastic deformation, and thus not to damage to components of the electromagnetic switch.
- the deformable force transmission element is designed in such a way that the slide can break through mechanical overload is prevented.
- the forces that can be transmitted by the deformable force transmission element from the slide to the armature are limited by the design of the deformable force transmission element in such a way that they cannot exceed the forces that would damage the slide if they acted.
- the deformable force transmission element is made in one piece.
- frame and tongue can be produced from a one-piece material by punching, as can a section of the force transmission element by means of which the force transmission element can be attached to the armature.
- the tongue and also the frame can be geometrically designed by deformation in such a way that a desired contact force threshold value can be set.
- the one-piece force transmission element is preferably made of metal, for example spring steel.
- the force transmission element can for example be designed as a leaf spring.
- the contact force threshold value can be influenced by prestressing the force transmission element.
- the electromagnetic switch is designed as a relay.
- the relay has a slide, a force transmission element for transmitting the forces of the slide to an armature and the armature.
- the armature is designed so that a movement of the armature leads to the opening or closing of one or more contacts. At least one contact can be opened or closed via further intermediate elements between armature and contact, for example intermediate levers and contact springs.
- the contact force threshold is set in such a way that the force exerted by the force transmission element on the armature and exerted by it on other components, for example contact springs, is not sufficient to plastically deform the other components, for example when a The user tries to loosen contacts that have been welded to one another by means of the slide, so that damage to the relay due to excessive forces on the part of the operator can be prevented.
- the electromagnetic switch in particular when the electromagnetic switch is designed as a relay, has at least two contacts, the contacts being positively guided. Opening one contact therefore inevitably closes the other contact.
- the fact that plastic deformation of the components of the electromagnetic switch is prevented by limiting the contact force ensures that the forced guidance of the contacts is not canceled by inadmissibly strong deformation of components, for example contact springs. This ensures that the forced operation always uses the status of a contact, i.e. open or closed, the state of the other contact, which is complementary to the state of the first contact, can be clearly determined.
- Fig. 1 shows an electromagnetic switch 100 according to the invention, which is designed as a relay.
- the slide 101 by means of which the contacts 119, 123 of the relay can be actuated manually, is in a non-actuated position.
- the working contact 119 is open while the normally closed contact 123 is closed.
- the normally open contact 119 can be closed manually, the normally closed contact 123 being opened.
- normally open contact 119 and normally closed contact 123 are positively guided, so that closing of normally open contact 119 always leads to opening of normally closed contact 123.
- the tongue 107 of the deformable force transmission element 105 lies in a recess 111 arranged in the slide 101, so that the slide 101 does not exert any forces on the tongue 107 of the force transmission element 105.
- the armature exerts no forces on the contact spring 121 of the make contact, so that the make contact 119 is open.
- a return spring 127 in conjunction with a magnetic return torque ensures that the armature 113 is always in a position in which the normally closed contact 123 is closed when no further electromagnetic or manual forces are exerted on the armature.
- the deformable force transmission element shown in the embodiment of the electromagnetic switch is designed as a force transmission element with a tongue 107 and a frame 109.
- the structure of this deformable force transmission element 105 is shown below in FIGS Fig. 4 and 5 described in more detail.
- the deformable force transmission element 105 is shown in FIG Fig. 1 attached to the anchor 113 by means of fastening elements 115.
- the deformable force transmission element 105 is attached to the armature 113 by riveted connections.
- other connections are also possible, for example by gluing, welding or soldering.
- Fig. 1 113 anchor used is designed as a rocker anchor.
- other designs of an anchor can also be used, for example a hinged anchor
- the electromagnetic switch 100 in the in Fig. 1 can also be actuated electromagnetically in a known manner. However, this will not be discussed further here.
- the manual actuation of the electromagnetic switch 100 designed as a relay Fig. 1 takes place in that the slide 101 is moved in the actuation direction 103 by the operator. As a result, the normally open contact 119 is closed while the normally closed contact 123 is opened.
- Fig. 2 the electromagnetic switch designed as a relay is shown in a state in which the normally open contact 119 is closed while the normally closed contact 123 is open. Is shown here as well as in Fig. 1 an error-free state, ie neither the normally open contact 119 nor the normally closed contact 123 are welded to one another.
- the deformable force transmission element 105 in the illustrated embodiment has a tongue 107, via which the force exerted by the user on the slide 101 is transmitted to the deformable force transmission element.
- the deformable force transmission element 105 furthermore has a frame 109.
- Such an embodiment of a deformable force transmission element 105 is explained below in the explanation of FIG Fig. 4 and 5 described.
- the frame 109 of the deformable force transmission element 105 rests against a projection 117 arranged on the armature 113.
- the projection 117 limits the movement of the frame 109 of the deformable force transmission element 105 relative to the armature 113.
- the movement of the tongue 107 of the deformable force transmission element 105 relative to the armature 113 is not limited.
- the tongue 107 and the frame 109 of the deformable force transmission element 105 can therefore move relative to one another. In the in Fig. 2 However, there is no or only a very slight relative movement of the tongue 107 of the deformable force transmission element 105 with respect to the frame 109.
- Fig. 3 shows the switch 100 designed as a relay Fig. 1 in a faulty state.
- the normally closed contact 123 is welded, for example due to overcurrents.
- the normally open contact 119 is open and cannot be closed by electromagnetic actuation.
- the armature 113 is accordingly in a position which largely corresponds to the position of the inoperative electromagnetic switch 100.
- the force transmitted by the deformable force transmission element 105 to the armature 113 is limited by the relative movement or bending between frame 109 and tongue 107 of the deformable force transmission element 105.
- the force exerted on the armature 113 via the tongue 107 and the frame 109 is determined via the relative bending between the tongue 107 and the frame 109 and the spring constant, ie the elasticity at the connection between the frame 109 and the tongue 107.
- the force exerted on armature 113 via tongue 107 and frame 109 increases.
- the maximum force that can be transmitted via the tongue 107 to the armature 113 is thus caused by the bending of the tongue 107 relative to the frame 109 and the bending of the tongue 107 relative to the armature 113 in connection with the elasticities, ie the spring constants of the connection between tongue 107 and frame 109 and limited between tongue 107 and the other sections of the deformable force transmission element 105.
- a displacement of the slide 101 in the actuating direction 103 does not result in any significant deformation of the tongue 107.
- the tongue 107 is only deformed in the section in which it is connected to the frame 109 and to the remaining section of the deformable force transmission element 105.
- a deformation of the tongue 107 also takes place, for example a flattening of a triangular tongue in order to limit the forces transmitted via the tongue 107 to the armature 113 by the deformation of the tongue 107 .
- This can be achieved, for example, by reducing the stiffness of the tongue (107).
- the deformable force transmission element 105 is designed due to its geometry and elasticities so that the maximum force that can be transmitted from the slide 101 via the deformable force transmission element 105 to the armature 113 is less than the force that leads to a plastic, i.e. permanent deformation of the contact spring 125 of the break contact 123 would lead. That is to say, before a plastic deformation of the contact spring 125 of the normally closed contact 123 occurs, the forces that would be required for this are limited by an elastic deformation of the tongue 107 relative to the frame 109 of the deformable force transmission element 105.
- the deformable force transmission element 105, and in particular its frame 109, is shown in FIGS Figs. 1 to 3 The embodiment shown is pretensioned in itself by being bent. The preload also influences the contact force threshold and sets a defined value for limiting the force.
- the normally open contact 119 can be closed manually by actuating the slide 101.
- the normally closed contact 123 can be opened by manual actuation, or opening and closing of both a normally open contact and a normally closed contact is possible through manual actuation.
- One or more slides can be provided for this, as well as several deformable force transmission elements between the slide and armature, so that, for example, if there is only one slide, it acts against the flanks of two deformable force transmission elements arranged on an armature in each slide direction.
- FIG. 4 shows a deformable force transmission element 105, as it is in the embodiment of the electromagnetic switch 100 according to FIG Figs. 1 to 3 is used.
- the deformable force transmission element 105 shown here uses the principle of a leaf spring.
- the force transmission element 105 can be fastened to the armature 113 in a rear section 405.
- fastening bores 407 are provided in the embodiment shown, through which the force transmission element 105 can be screwed or riveted to the armature 113.
- a tongue 107 is formed on the force transmission element 105 and is surrounded by the frame 109.
- Frame 109 and tongue 107 are connected to one another where they merge into rear section 405 of force transmission element 105.
- the tongue 107 is shaped such that it protrudes from the plane spanned by the force transmission element 105. As a result, the tongue protrudes in the installed state in the direction of the slide 101, so that when the slide 101 moves in the actuation direction 103 through the slide 101, forces can be exerted on the flank of the tongue 107.
- a slot 401 is formed between the frame 109 and tongue 107, which allows the tongue 107 to move relative to the frame 109.
- the slot 401 frames a window 409 in which the tongue 107 is arranged and in which the tongue 107 can move relative to the frame 109 when forces are applied.
- the force transmission element 105 is folded over, whereby the window 409 for the movement of the tongue 107 is reduced so that the front section 501 of tongue 107 (see Fig. 5 ) lies below the front section 403 of the force transmission element 105, whereby the movement of the tongue 107 relative to the frame 109 in the direction of the slide 101 is limited when it is installed in the switch 100, ie the front section 501 of the tongue cannot move above the frame .
- the deformable force transmission element 105 is self-biased, i. E. the section of the force transmission element 105, in which the tongue 107 and frame 109 are arranged, is biased or bent upwards in the direction of the slide out of the plane of the section 405 in which the force transmission element 105 is attached to the armature in the installed state.
- the degree of pre-tensioning influences the amount of force which is transmitted from the slide 101 to the armature 113 via the tongue 107 and the frame 109.
- FIG. 11 shows the deformable force transmission element 105 according to FIG Fig. 4 after a first manufacturing step, in which a slot 401 was punched out of a one-piece material, whereby frame 109 and tongue 107 are formed.
- the tongue 107 has a front, widened section 501 which, as described above, limits the movement of the tongue 107 in the direction of the slide, ie upwards, by forming a stop which strikes against the front section 403 of the deformable force transmission element 105 when the front section 403 as in FIG Fig.
- the holes 407 for fastening the force transmission element 105 to the armature are also already made.
- the force transmission element 105 is also pretensioned by deforming the frame 109, the tongue 107 is bent and the front section 403 is folded in order, as in FIG Fig. 4 shown to form a limitation of the movement of the tongue 107.
- the force transmission element 105 according to Fig. 4 is preferably made of metal, for example spring steel. However, it can also be made of other materials that have suitable elastic properties.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Mechanisms For Operating Contacts (AREA)
- Electromagnets (AREA)
- Slide Switches (AREA)
Description
Die vorliegende Erfindung betrifft einen elektromagnetischen Schalter.The present invention relates to an electromagnetic switch.
Elektromagnetische Schalter, welche beispielsweise als Relais ausgeführt sind, umfassen in der Regel einen Anker, welcher als Wippanker ausgeführt sein kann. Zur manuellen Betätigung des Ankers kann ein Hebel eingesetzt werden, welcher die Stellung des Ankers verändert, so dass die an den Anker gekoppelten Kontaktfedern eine Schaltbewegung ausführen und die Kontakte des Relais geöffnet bzw. geschlossen werden können.Electromagnetic switches, which are designed, for example, as relays, generally include an armature, which can be designed as a rocker armature. For manual actuation of the armature, a lever can be used which changes the position of the armature so that the contact springs coupled to the armature perform a switching movement and the contacts of the relay can be opened or closed.
In einem Fehlerfall, beispielsweise bei größeren Stromstärken, kann es jedoch zu einer temporären Verschweißung der Kontakte kommen. Eine manuelle Betätigung des Hebels kann in einem solchen Fall zu einer Beschädigung von Kontaktfedern im Relais führen. Zur Lösung dieses Problems schlägt die
Es ist die Aufgabe der vorliegenden Erfindung, ein Konzept zur Vermeidung einer Beschädigung eines elektromagnetischen Schalters der vorgenannten Art in einem Fehlerfall zu schaffen.The object of the present invention is to create a concept for avoiding damage to an electromagnetic switch of the aforementioned type in the event of a fault.
Diese Aufgabe wird durch die Merkmale des unabhängigen Anspruchs 1 gelöst. Vorteilhafte Ausführungsformen der Erfindung sind Gegenstand der Figuren, der Beschreibung und der abhängigen Ansprüche.This object is achieved by the features of independent claim 1. Advantageous embodiments of the invention are the subject matter of the figures, the description and the dependent claims.
Die Erfindung basiert auf der Erkenntnis, dass die obige Aufgabe durch eine Begrenzung der Kräfte, welche von einem Schalter auf einen Anker eines elektromagnetischen Schalters, beispielsweise eines Relais, übertragbar sind, gelöst werden kann. Dadurch kann insbesondere eine plastische Verformung von Bauteilen des elektromagnetischen Schalters, beispielsweise von Kontaktfedern, beispielsweise bei verschweißten Kontakten verhindert werden.The invention is based on the knowledge that the above object can be achieved by limiting the forces which can be transmitted from a switch to an armature of an electromagnetic switch, for example a relay. In this way, in particular, plastic deformation of components of the electromagnetic switch, for example contact springs, for example in the case of welded contacts, can be prevented.
Gemäß einem ersten Aspekt der Erfindung wird die Aufgabe durch einen elektromagnetischen Schalter gelöst, der einen Anker und einen Schieber aufweist, der zur Betätigung des Ankers manuell verschiebbar ist. Der erfindungsgemäße elektromagnetische Schalter weist des Weiteren ein verformbares Kraftübertragungselement auf, das zwischen dem Schieber und dem Anker angeordnet ist. Der Schieber ist bei manueller Betätigung gegen das verformbare Kraftübertragungselement mit einer Anpresskraft anpressbar, um den Anker zu betätigen. Der Schieber übt dabei Kräfte auf das Kraftübertragungselement aus, die dieses auf den Anker überträgt. Dadurch kann der Anker manuell von außen über den Schieber betätigt werden. Das verformbare Kraftübertragungselement ist bei Überschreitung eines Anpresskraftschwellwertes durch die Anpresskraft verformbar. Dadurch wird die vom Schieber auf den Anker übertragbare Anpresskraft begrenzt.According to a first aspect of the invention, the object is achieved by an electromagnetic switch which has an armature and a slide which can be moved manually to operate the armature. The electromagnetic switch according to the invention furthermore has a deformable force transmission element which is arranged between the slide and the armature. When manually operated, the slide can be pressed against the deformable force transmission element with a pressing force in order to operate the armature. The slide exerts forces on the force transmission element, which transmits it to the armature. This allows the armature to be operated manually from the outside using the slide. The deformable force transmission element is deformable when a contact force threshold value is exceeded by the contact force. This limits the contact pressure that can be transmitted from the slide to the armature.
Alternativ zu einem Schieber kann zur manuellen Betätigung auch ein anderes Betätigungselement, beispielsweise ein Druckschalter oder ein Hebel, verwendet werden, soweit dieses geeignet ist, die durch einen Bediener aufgebrachte Kraft auf das Kraftübertragungselement zu übertragen. Überschreitet die vom Bediener auf den Schieber aufgebrachte Kraft einen Schwellwert, so verformt sich das Kraftübertragungselement und bewirkt durch seine Verformung, dass die durch das Kraftübertragungselement auf den Anker übertragene Kraft den Schwellwert nicht überschreitet. Der Schwellwert wird so gewählt, dass er noch nicht zu einer plastischen Verformung von Bauteilen, beispielsweise von Kontaktfedern eines Relais, und damit zu einer bleibenden Schädigung der Bauteile des elektromagnetischen Schalters führt, wenn beispielsweise Kontakte des Schalters verschweißt sind und der Benutzer versucht, die Kontakte durch manuelle Betätigung wieder voneinander zu lösen. Der Schwellwert kann beispielsweise so gewählt werden, dass er der Kraft entspricht, die auch ein Magnetsystem des elektromagnetischen Schalters, auch unter Berücksichtigung einer Übererregung, auf den Anker ausüben würde.As an alternative to a slide, another actuating element, for example a pressure switch or a lever, can be used for manual actuation, provided that this is suitable for transmitting the force applied by an operator to the force transmission element. If the force applied by the operator to the slide exceeds a threshold value, the force transmission element is deformed and its deformation ensures that the force transmitted by the force transmission element to the armature does not exceed the threshold value. The threshold value is chosen so that it does not yet lead to a plastic deformation of components, for example the contact springs of a relay, and thus to permanent damage to the components of the electromagnetic switch if, for example, contacts of the switch are welded and the user tries to remove the contacts to be released from each other again by manual operation The threshold value can be selected, for example, so that it corresponds to the force that a magnet system of the electromagnetic switch would exert on the armature, also taking into account overexcitation.
Die Begrenzung der Anpresskraft wird durch Verformung des Kraftübertragungselementes bei Überschreitung des Schwellwertes hervorgerufen. Auch bei geringeren Kräften kann bereits eine gewisse Verformung des Kraftübertragungselementes auftreten, die jedoch noch nicht zu einer Begrenzung der Anpresskraft führt. Es ist daher stets gewährleistet, dass die durch das Kraftübertragungselement auf den Anker übertragenen Kräfte zumindest so groß sind, dass in fehlerfreiem Zustand des elektromagnetischen Schalters die Kontakte des Schalters geöffnet und geschlossen werden können. Die Anpresskraft kann beim erfindungsgemäßen elektromagnetischen Schalter auch noch während der Verformung des Kraftübertragungselementes ansteigen und dann, wenn der Schieber, wenn er durch den Bediener verschoben wird, seinen maximalen Verschiebeweg erreicht hat, den Anpresskraftschwellwert erreichen, so dass sichergestellt ist, dass über den gesamten Verschiebeweg des Schiebers und unabhängig von den auf den Schieber aufgebrachten Kräften der Anpresskraftschwellwert nicht überschritten wird.The limitation of the contact force is caused by the deformation of the force transmission element when the threshold value is exceeded. Even with lower forces, a certain deformation of the force transmission element can already occur, but this does not yet lead to a limitation of the contact pressure. It is therefore always ensured that the forces transmitted to the armature by the force transmission element are at least so great that the contacts of the electromagnetic switch in a fault-free state Switch can be opened and closed. With the electromagnetic switch according to the invention, the contact force can also increase during the deformation of the force transmission element and then, when the slide has reached its maximum displacement path when it is moved by the operator, it can reach the contact force threshold value so that it is ensured that over the entire displacement path of the slide and regardless of the forces applied to the slide, the contact force threshold is not exceeded.
Ein im Sinne der Erfindung ausgebildeter elektromagnetischer Schalter zeichnet sich vor allem dadurch aus, dass die vom Bediener über den Schieber oder ein anderes Betätigungselement auf die weiteren Bauteile des elektromagnetischen Schalters konstruktiv derart begrenzt werden, dass eine bleibende Schädigung von Bauteilen, beispielsweise von Kontaktfedern des elektromagnetischen Schalters wirksam verhindert wird.An electromagnetic switch designed in accordance with the invention is characterized primarily by the fact that the operator uses the slide or another actuating element to constructively limit the other components of the electromagnetic switch in such a way that permanent damage to components, for example contact springs of the electromagnetic Switch is effectively prevented.
Nach einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, das verformbare Kraftübertragungselement mit dem Anker zu verbinden. Dies kann stoffschlüssig oder kraftschlüssig geschehen. Auch eine formschlüssige Verbindung zwischen dem Kraftübertragungselement und dem Anker ist möglich. Das Kraftübertragungselement kann beispielsweise auf den Anker genietet, geschraubt, geklebt, gelötet oder geschweißt werden. Dadurch wird verhindert, dass das Kraftübertragungselement seine Position relativ zum Anker und auch relativ zum Schieber verändert und es zu Fehlfunktionen oder Funktionsausfällen kommt.According to an advantageous development of the invention, it is provided that the deformable force transmission element is connected to the armature. This can take place in a materially or force-fit manner. A positive connection between the force transmission element and the armature is also possible. The force transmission element can for example be riveted, screwed, glued, soldered or welded onto the armature. This prevents the force transmission element from changing its position relative to the armature and also relative to the slide, which could lead to malfunctions or functional failures.
Der Anker des elektromagnetischen Schalters kann ein Wippanker, aber auch eine andere Ausführung eines Ankers, beispielsweise ein Klappanker sein.The armature of the electromagnetic switch can be a rocker armature, but also another embodiment of an armature, for example a hinged armature.
In einer weiteren vorteilhaften Ausgestaltung der Erfindung ist das verformbare Kraftübertragungselement plastisch oder elastisch verformbar. Der Grad der Verformbarkeit kann dabei einerseits durch die Materialwahl, andererseits aber insbesondere durch die geometrische Gestaltung des Kraftübertragungselements beeinflusst werden. Bei einem elastischen Kraftübertragungselement ist die Verformung des Kraftübertragungselementes selbst dann, wenn über den gesamten Schiebeweg des Schiebers Kräfte aufgebracht werden, die den Anpresskraftschwellwert überschreiten, reversibel. Die vom Bediener aufgebrachten Kräfte führen damit nicht zu einer dauerhaften Verformung des Kraftübertragungselementes. Die durch das Kraftübertragungselement bewirkte Begrenzung der aufgebrachten Kräfte auf den Anpresskraftschwellwert ist damit auch bei mehrfachen Fehlbedienungen, bei denen hohe Kräfte auf den Schieber aufgebracht werden, möglich. Es kommt nicht zu einer Beschädigung des Kraftübertragungselementes.In a further advantageous embodiment of the invention, the deformable force transmission element is plastically or elastically deformable. The degree of deformability can be influenced on the one hand by the choice of material, but on the other hand in particular by the geometric design of the force transmission element. In the case of an elastic force transmission element, the deformation of the force transmission element is even if forces are applied over the entire sliding path of the slide that exceed the contact force threshold value, reversible. The forces applied by the operator thus do not lead to permanent deformation of the force transmission element. The limitation of the applied forces to the contact pressure threshold value brought about by the force transmission element is thus also possible in the case of multiple incorrect operations in which high forces are applied to the slide. There is no damage to the power transmission element.
Ist das Kraftübertragungselement hingegen plastisch verformbar, so kann bereits eine einmalige manuelle Betätigung, bei der der Anpresskraftschwellwert überschritten wird, zu einer bleibenden Verformung des Kraftübertragungselementes führen, so dass bei einer wiederholten manuellen Betätigung entweder eine Begrenzung der Anpresskraft durch das Kraftübertragungselement auf den Anpresskraftschwellwert nicht gewährleistet ist, oder bei einer manuellen Betätigung die Kräfte nicht mehr ausreichen, um die Kontakte des elektromagnetischen Schalters zu öffnen oder zu schließen.If, on the other hand, the force transmission element is plastically deformable, a single manual actuation in which the contact force threshold value is exceeded can lead to permanent deformation of the force transmission element, so that with repeated manual actuation, either the force transmission element does not limit the contact force to the contact force threshold value is, or in the case of manual actuation, the forces are no longer sufficient to open or close the contacts of the electromagnetic switch.
Erfindungsgemäss weist das verformbare Kraftübertragungselement eine verformbare Zunge auf. Der elektromagnetische Schalter ist so gestaltet, dass der Schieber gegen die verformbare Zunge anpressbar ist. Die verformbare Zunge ist bei Überschreitung des Anpresskraftschwellwertes verformbar, um die Anpresskraft des Schiebers aufzunehmen. Durch Verformung der Zunge kann die vom Schieber auf die Zunge ausgeübte Kraft so reduziert werden, dass die Zunge auf den Anker eine Kraft ausübt, die nicht größer als der Anpresskraftschwellwert ist. Die Zunge kann verschiedene Gestaltungen aufweisen, beispielsweise kann sie dreieckförmig sein oder wellenförmig, wobei das Dreieck oder die Welle vorzugsweise vom Anker in Richtung des Schiebers wegweist. Die Zunge kann eine Flanke aufweisen, an die der Schieber bei Bewegung zum Anliegen kommen kann, so dass der Schieber über die Flanke auf die Zunge die Kraft zum Bewegen des Ankers ausübt.According to the invention, the deformable force transmission element has a deformable tongue. The electromagnetic switch is designed so that the slide can be pressed against the deformable tongue. The deformable tongue is deformable when the contact pressure threshold value is exceeded in order to absorb the contact pressure of the slide. By deforming the tongue, the force exerted by the slide on the tongue can be reduced so that the tongue exerts a force on the armature that is not greater than the contact pressure threshold value. The tongue can have various designs, for example it can be triangular or wave-shaped, the triangle or the wave preferably pointing away from the armature in the direction of the slide. The tongue can have a flank against which the slide can come to rest when moving, so that the slide exerts the force for moving the armature on the tongue via the flank.
In einer weiteren vorteilhaften Ausgestaltung umfasst das verformbare Kraftübertragungselement einen umlaufenden Rahmen, der an dem Anker befestigt ist. Im umlaufenden Rahmen ist bei dieser Ausführung ein Fenster gebildet, die verformbare Zunge ist einseitig an dem umlaufenden Rahmen befestigt, und bei Verformung des verformbaren Kraftübertragungselementes ist die Zunge zumindest teilweise durch das Fenster aufnehmbar. Dabei können Zunge und Rahmen einteilig ausgebildet sein. Der umlaufende Rahmen kann dort, wo die verformbare Zunge am Rahmen befestigt ist, einen Abschnitt aufweisen, mittels dessen das Kraftübertragungselement am Anker befestigt werden kann. Bei Draufsicht auf das Kraftübertragungselement kann die Zunge in ihrer Projektion vollständig vom Rahmen umgeben sein.In a further advantageous embodiment, the deformable force transmission element comprises a circumferential frame which is attached to the armature. In this embodiment, a window is formed in the circumferential frame, the deformable tongue is fastened on one side to the circumferential frame, and when the deformable force transmission element is deformed, the tongue can at least partially be received by the window. The tongue and frame can be made in one piece. The Circumferential frame can have a section where the deformable tongue is attached to the frame, by means of which the force transmission element can be attached to the armature. When the force transmission element is viewed from above, the projection of the tongue can be completely surrounded by the frame.
In einer weiteren vorteilhaften Ausgestaltung ist die verformbare Zunge durch einen teilweise umlaufenden Schlitz in einem Materialstück geformt. Dabei umgibt der umlaufende Rahmen den teilweise umlaufenden Schlitz. Die Zunge wird damit durch den Schlitz aus dem Materialstück freigeschnitten. Die Zunge kann aus einer Ebene des Materialstückes herausragen, beispielsweise wellenförmig, dreiecksförmig oder auch bogenförmig, so dass der Schieber bei seiner Bewegung an die Zunge zum Anliegen kommen kann, um auf diese Kräfte zu übertragen. Die Zunge kann beispielsweise durch Ausstanzen aus einem Materialstück hergestellt werden, wobei durch das Ausstanzen auch der umlaufende Rahmen und den teilweise umlaufenden Schlitz erhalten wird. Das Ausstanzen kann vorzugsweise nur auf einem Abschnitt des Materialstücks vorgenommen werden, so dass das Materialstück einen weiteren Abschnitt aufweist, in dem kein Schlitz vorhanden ist, und an diesem weiteren Abschnitt die Zunge und der Rahmen befestigt sind, und mittels diesem weiteren Abschnitt das Kraftübertragungselement am Anker befestigbar ist. Nach dem Ausstanzen der Zunge aus einem zunächst ebenen Materialstück kann durch nachfolgende Verformung die Zunge aus der Ebene des Materialstückes herausragen, beispielsweise wie vorstehend beschrieben dreiecksförmig oder wellenförmig, und der umlaufende Rahmen kann durch Aufbringen von Kräften vorgespannt werden, so dass unter anderem durch die Vorspannung der Anpresskraftschwellwert einstellbar ist.In a further advantageous embodiment, the deformable tongue is formed by a partially circumferential slot in a piece of material. The surrounding frame surrounds the partially surrounding slot. The tongue is thus cut free from the piece of material through the slot. The tongue can protrude from a plane of the piece of material, for example in a wave-shaped, triangular or curved shape, so that the slide can come into contact with the tongue during its movement in order to transfer these forces. The tongue can be produced, for example, by punching out a piece of material, with the punching also obtaining the circumferential frame and the partially circumferential slot. The punching can preferably only be carried out on a section of the piece of material, so that the piece of material has a further section in which there is no slot, and the tongue and the frame are attached to this further section, and by means of this further section the force transmission element on the Anchor is attachable. After the tongue has been punched out of an initially flat piece of material, the tongue can protrude from the plane of the piece of material by subsequent deformation, for example triangular or wave-shaped as described above, and the surrounding frame can be pretensioned by applying forces so that, among other things, the pretensioning the contact force threshold is adjustable.
In einer weiteren vorteilhaften Ausgestaltung ist die verformbare Zunge wellenförmig geformt. Sie ist so gestaltet und zwischen dem Schieber und dem Anker angeordnet, dass eine Wellenflanke der verformbaren Zunge mit dem Schieber beaufschlagbar ist. Wie bereits vorstehend beschrieben, sind auch andere geometrische Formen der Zunge möglich, die es erlauben, die vom Bediener auf den Schieber ausgeübten Kräfte auf die Zunge zu übertragen, beispielsweise eine Dreiecksform oder eine Halbkreisform. Beim Verschieben des Schiebers durch den Benutzer kommt dabei eine Flanke des Schiebers an die verformbare Zunge zum Anliegen und überträgt Kräfte auf die verformbare Zunge, die zumindest beim Überschreiten des Anpresskraftschwellwertes zu einer Verformung der Zunge führen. Aufgrund der Elastizität der Zunge kann jedoch bereits eine gewisse Verformung der Zunge auch bereits vor Überschreiten des Anpresskraftschwellwertes erfolgen.In a further advantageous embodiment, the deformable tongue is shaped like a wave. It is designed and arranged between the slide and the armature that a wave flank of the deformable tongue can be acted upon by the slide. As already described above, other geometrical shapes of the tongue are also possible which allow the forces exerted by the operator on the slide to be transmitted to the tongue, for example a triangular shape or a semicircular shape. When the slide is moved by the user, a flank of the slide comes to rest against the deformable tongue and transfers forces to the deformable tongue, which lead to deformation at least when the contact force threshold is exceeded the tongue. Due to the elasticity of the tongue, however, a certain deformation of the tongue can take place even before the contact force threshold is exceeded.
In einer vorteilhaften Ausgestaltung der Erfindung ist der Anpresskraftschwellwert von der geometrischen Form der Zunge abhängig. Die Eigenschaften der Zunge hängen von ihrer geometrischen Form ab. So hängt beispielsweise die Steifigkeit der Zunge einerseits von der Materialdicke, aber insbesondere auch von der Gestaltung der Zunge ab. Durch unterschiedliche Gestaltungen können unterschiedliche Steifigkeiten erreicht werden. Die Zunge kann auch mit Versteifungen oder Ausnehmungen versehen werden, um die Elastizität der Zunge zu verringern, d.h. die Zunge steifer zu machen, oder die Elastizität der Zunge zu vergrößern, d.h. ihre Steifigkeit zu reduzieren, wodurch der Anpresskraftschwellwert herabgesetzt wird.In an advantageous embodiment of the invention, the contact pressure threshold value is dependent on the geometric shape of the tongue. The properties of the tongue depend on its geometric shape. For example, the stiffness of the tongue depends on the one hand on the material thickness, but in particular also on the design of the tongue. Different stiffnesses can be achieved through different designs. The tongue can also be provided with stiffeners or recesses in order to reduce the elasticity of the tongue, i.e. to make the tongue stiffer, or to increase the elasticity of the tongue, i.e. to reduce their rigidity, whereby the contact force threshold is reduced.
In einer weiteren vorteilhaften Ausgestaltung ist das verformbare Kraftübertragungselement so gestaltet, dass es eine Anpresskraft von dem Schieber auf den Anker überträgt, soweit die Anpresskraft den Anpresskraftschwellwert nicht überschreitet. Dadurch wird der Anker betätigt. Eine Kraft, die den Anpresskraftschwellwert überschreitet, wird hingegen nur in Höhe des Anpresskraftschwellwerts vom Schieber auf den Anker übertragen.
In einer besonders vorteilhaften Ausgestaltung weist der elektromagnetische Schalter einen elektromechanischen Kontakt auf. Dabei können einer oder auch mehrere elektromechanische Kontakte vorgesehen sein. Der elektromechanische Kontakt ist im nicht festgesetzten Kontaktzustand frei lösbar, d.h. dann, wenn die Kontakte entweder nicht mechanisch miteinander verriegelt sind, oder insbesondere nicht durch Verschweißung aneinander haften. Der elektromechanische Kontakt kann mittels des Ankers durch Ausüben einer Lösekraft gelöst werden. Die Lösekraft wird vom Anker direkt oder über Zwischenelemente auf die Kontakte ausgeübt, wobei die Lösekraft aus der über das verformbare Kraftübertragungselement auf den Anker übertragenen Kraft gebildet wird. Die über das Kraftübertragungselement übertragene Kraft wird aus der durch den Bediener auf den Schieber ausgeübten Kraft gebildet, die der Schieber auf das Kraftübertragungselement ausübt. Der Anpresskraftschwellwert ist größer als die Lösekraft, so dass eine Verformung des Kraftübertragungselementes, die zu einer Begrenzung der Anpresskraft auf den Anpresskraftschwellwert führen würde, nicht dazu führt, dass die Anpresskraft auf einen Wert begrenzt wird, der geringer ist als die aufzubringende Lösekraft zum Lösen des Kontaktes. Dadurch ist sichergestellt, dass die Kontakte dann, wenn sie nicht festgesetzt, beispielsweise nicht verschweißt sind, stets mittels des Schiebers manuell voneinander gelöst oder, in anderer Ausführung, auch geschlossen werden können. Sind mehrere Kontakte vorhanden, so kann durch die Betätigung des Schiebers auch ein Kontakt geöffnet werden, während gleichzeitig ein anderer Kontakt geschlossen wird. Dies ist beispielsweise dann der Fall, wenn die Kontakte zwangsgeführt sind, so dass das Öffnen eines Kontaktes stets zum Schließen des einen anderen Kontaktes und umgekehrt führt.In a further advantageous embodiment, the deformable force transmission element is designed in such a way that it transmits a contact force from the slide to the armature, provided that the contact force does not exceed the contact force threshold value. This actuates the armature. In contrast, a force that exceeds the contact force threshold value is only transmitted from the slide to the armature at the level of the contact force threshold value.
In a particularly advantageous embodiment, the electromagnetic switch has an electromechanical contact. One or more electromechanical contacts can be provided. The electromechanical contact can be freely released in the non-fixed contact state, ie when the contacts are either not mechanically locked to one another or, in particular, do not adhere to one another by welding. The electromechanical contact can be released by exerting a release force by means of the armature. The release force is exerted on the contacts by the armature directly or via intermediate elements, the release force being formed from the force transmitted to the armature via the deformable force transmission element. The force transmitted via the force transmission element is formed from the force exerted by the operator on the slide, which the slide exerts on the force transmission element. The contact pressure threshold value is greater than the release force, so that a deformation of the force transmission element, which would lead to a limitation of the contact force to the contact force threshold value, does not occur leads to the fact that the contact pressure is limited to a value that is less than the release force to be applied to release the contact. This ensures that the contacts, when they are not fixed, for example not welded, can always be manually released from one another by means of the slide or, in another embodiment, can also be closed. If there are several contacts, one contact can be opened by operating the slide while another contact is closed at the same time. This is the case, for example, when the contacts are positively guided, so that the opening of one contact always leads to the closing of the other contact and vice versa.
In einer weiteren besonders vorteilhaften Ausgestaltung ist das verformbare Kraftübertragungselement so gestaltet, dass dann, wenn der wenigstens eine elektromechanische Kontakt sich in einem festgesetzten Zustand befindet, beispielsweise aufgrund von Überströmen verschweißt ist, der elektromechanische Kontakt nicht durch Betätigung des Schiebers durch den Benutzer lösbar ist. Das verformbare Kraftübertragungselement verformt sich, wenn die ausgeübte Kraft einen Anpresskraftschwellwert überschreitet. Der Anpresskraftschwellwert ist so gewählt, dass ein Lösen festgesetzter, insbesondere verschweißter Kontakte durch auf den Schieber ausgeübte Kräfte nicht möglich ist. Dadurch wird verhindert, dass die seitens des Schiebers über das Kraftübertragungselement auf den Anker ausgeübten Kräfte dazu führen, dass Bauteile des elektromagnetischen Schalters plastisch verformt werden und es dadurch zu irreversiblen Verformungen von Bauteilen, und damit zu dauerhaften Schädigungen des elektromagnetischen Schalters kommt. Beispielsweise wird dadurch verhindert, dass Kontaktfedern elektromagnetischen Relais irreversibel verbogen werden, wodurch das Relais geschädigt und gegebenenfalls unbrauchbar werden würde. Das verformbare Kraftübertragungselement ist dabei so gestaltet, dass es die Anpresskraft so auf einen Anpresskraftschwellwert begrenzt, dass der Anpresskraftschwellwert unter der Kraft liegt, die zu einem plastischen Verformen von Bauteilen, beispielsweise Kontaktfedern des elektromagnetischen Schalters, führen würde, so dass die auf den Anker übertragenen Kräfte stets nicht zu einer plastischen Verformung, und damit nicht zu einer Schädigung von Bauteilen des elektromagnetischen Schalters führen können.In a further particularly advantageous embodiment, the deformable force transmission element is designed so that when the at least one electromechanical contact is in a fixed state, for example welded due to overcurrents, the electromechanical contact cannot be released by actuating the slide by the user. The deformable force transmission element deforms when the exerted force exceeds a contact pressure threshold value. The contact pressure threshold value is selected such that it is not possible to loosen fixed, in particular welded contacts due to forces exerted on the slide. This prevents the forces exerted by the slide on the armature via the force transmission element from causing components of the electromagnetic switch to be plastically deformed, resulting in irreversible deformations of components and thus permanent damage to the electromagnetic switch. For example, this prevents the contact springs of electromagnetic relays from being irreversibly bent, which would damage the relay and possibly render it unusable. The deformable force transmission element is designed so that it limits the contact force to a contact force threshold value so that the contact force threshold value is below the force that would lead to a plastic deformation of components, for example contact springs of the electromagnetic switch, so that the transmitted to the armature Forces always cannot lead to plastic deformation, and thus not to damage to components of the electromagnetic switch.
In einer weiteren vorteilhaften Ausgestaltung ist das verformbare Kraftübertragungselement so ausgestaltet, dass ein Bruch des Schiebers durch mechanische Überlastung verhindert wird. Die durch das verformbare Kraftübertragungselement vom Schieber auf den Anker übertragbaren Kräfte werden dabei durch die Ausgestaltung des verformbaren Kraftübertragungselements so begrenzt, dass sie dir Kräfte nicht überschreiten können, bei deren Einwirkung der Schieber beschädigt werden würde.In a further advantageous embodiment, the deformable force transmission element is designed in such a way that the slide can break through mechanical overload is prevented. The forces that can be transmitted by the deformable force transmission element from the slide to the armature are limited by the design of the deformable force transmission element in such a way that they cannot exceed the forces that would damage the slide if they acted.
In einer weiteren vorteilhaften Ausgestaltung ist das verformbare Kraftübertragungselement einstückig ausgeführt. Bei der vorstehend beschriebenen Ausführung mit Rahmen und Zunge können beispielsweise Rahmen und Zunge durch Stanzen aus einem einstückigen Material hergestellt werden, ebenso ein Abschnitt des Kraftübertragungselementes, mittels dessen das Kraftübertragungselement am Anker befestigbar ist. Die Zunge und auch der Rahmen können durch Verformung geometrisch so gestaltet werden, dass ein gewünschter Anpresskraftschwellwert einstellbar ist. Das einstückige Kraftübertragungselement ist dabei vorzugsweise aus Metall, beispielsweise aus Federstahl gebildet. Das Kraftübertragungselement kann beispielsweise als Blattfeder ausgebildet sein. Durch Vorspannung des Kraftübertragungselements kann der Anpresskraftschwellwert beeinflusst werden.In a further advantageous embodiment, the deformable force transmission element is made in one piece. In the above-described embodiment with frame and tongue, for example, frame and tongue can be produced from a one-piece material by punching, as can a section of the force transmission element by means of which the force transmission element can be attached to the armature. The tongue and also the frame can be geometrically designed by deformation in such a way that a desired contact force threshold value can be set. The one-piece force transmission element is preferably made of metal, for example spring steel. The force transmission element can for example be designed as a leaf spring. The contact force threshold value can be influenced by prestressing the force transmission element.
In einer weiteren vorteilhaften Ausgestaltung ist der elektromagnetische Schalter als Relais ausgebildet. Das Relais weist dabei erfindungsgemäß einen Schieber, ein Kraftübertragungselement zur Übertragung der Kräfte des Schiebers auf einen Anker sowie den Anker auf. Der Anker ist so gestaltet, dass eine Bewegung des Ankers zum Öffnen bzw. Schließen einer oder mehrerer Kontakte führt. Das Öffnen bzw. Schließen wenigstens eines Kontaktes kann dabei noch über weitere Zwischenelemente zwischen Anker und Kontakt, beispielsweise Zwischenhebel und Kontaktfedern, erfolgen. Bei der Ausführung des elektromagnetischen Schalters als Relais ist der Anpresskraftschwellwert so festgelegt, dass die vom Kraftübertragungselement auf den Anker ausgeübte, und von diesem auf weitere Bauteile, beispielsweise Kontaktfedern ausgeübte Kraft nicht ausreicht, um die weiteren Bauteile plastisch zu verformen, beispielsweise dann, wenn ein Benutzer versucht, mittels des Schiebers miteinander verschweißte Kontakte zu lösen, so dass eine Beschädigung des Relais durch zu hohe Kräfte seitens des Bedieners verhindert werden kann.In a further advantageous embodiment, the electromagnetic switch is designed as a relay. According to the invention, the relay has a slide, a force transmission element for transmitting the forces of the slide to an armature and the armature. The armature is designed so that a movement of the armature leads to the opening or closing of one or more contacts. At least one contact can be opened or closed via further intermediate elements between armature and contact, for example intermediate levers and contact springs. When the electromagnetic switch is designed as a relay, the contact force threshold is set in such a way that the force exerted by the force transmission element on the armature and exerted by it on other components, for example contact springs, is not sufficient to plastically deform the other components, for example when a The user tries to loosen contacts that have been welded to one another by means of the slide, so that damage to the relay due to excessive forces on the part of the operator can be prevented.
In einer weiteren vorteilhaften Ausführung, insbesondere dann, wenn der elektromagnetische Schalter als Relais ausgestaltet ist, weist der elektromagnetische Schalter mindestens zwei Kontakte auf, wobei die Kontakte zwangsgeführt sind. Ein Öffnen des einen Kontaktes führt damit zwangsläufig zum Schließen des anderen Kontaktes. Dadurch, dass ein plastisches Verformen der Bauteile des elektromagnetischen Schalters durch Begrenzung der Anpresskraft verhindert wird, ist sichergestellt, dass die Zwangsführung der Kontakte nicht durch unzulässig starke Verformung von Bauteilen, beispielsweise von Kontaktfedern, aufgehoben wird. Damit ist sichergestellt, dass aufgrund der Zwangsführung stets anhand des Zustandes eines Kontaktes, d.h. geöffnet oder geschlossen, der Zustand des anderen Kontaktes, der dem Zustand des ersten Kontaktes antivalent ist, eindeutig bestimmt werden kann.In a further advantageous embodiment, in particular when the electromagnetic switch is designed as a relay, the electromagnetic switch has at least two contacts, the contacts being positively guided. Opening one contact therefore inevitably closes the other contact. The fact that plastic deformation of the components of the electromagnetic switch is prevented by limiting the contact force ensures that the forced guidance of the contacts is not canceled by inadmissibly strong deformation of components, for example contact springs. This ensures that the forced operation always uses the status of a contact, i.e. open or closed, the state of the other contact, which is complementary to the state of the first contact, can be clearly determined.
Ausführungsbeispiele der Erfindung werden nachfolgend anhand der beigefügten Zeichnungen beschrieben.Embodiments of the invention are described below with reference to the accompanying drawings.
Es zeigen:
- Fig. 1
- einen als Relais ausgeführten elektromagnetischen Schalter mit nicht betätigtem Schieber;
- Fig. 2
- den als Relais ausgeführten elektromagnetischen Schalter aus
Fig. 1 in fehlerfreiem Zustand mit betätigtem Schieber; - Fig. 3
- den als Relais ausgeführten elektromagnetischen Schalter aus
Fig. 1 mit betätigtem Scheiber bei verschweißtem Ruhekontakt; - Fig. 4
- ein verformbares Kraftübertragungselement; und
- Fig. 5
- das verformbare Kraftübertragungselement aus
Fig. 4 nach einem ersten Fertigungsschritt.
- Fig. 1
- an electromagnetic switch designed as a relay with a non-actuated slide;
- Fig. 2
- the electromagnetic switch designed as a relay
Fig. 1 in error-free condition with actuated slide; - Fig. 3
- the electromagnetic switch designed as a relay
Fig. 1 with actuated slider with welded break contact; - Fig. 4
- a deformable force transmission element; and
- Fig. 5
- the deformable force transmission element
Fig. 4 after a first production step.
In unbetätigtem Zustand des Schiebers 101 liegt die Zunge 107 des verformbaren Kraftübertragungselements 105 in einer im Schieber 101 angeordneten Vertiefung 111, so dass durch den Schieber 101 keine Kräfte auf die Zunge 107 des Kraftübertragungselements 105 ausgeübt werden. Dadurch werden durch das Kraftübertragungselement 105 bei unbetätigtem Schieber 101 auch keine Kräfte auf den Anker 113 ausgeübt. Durch den Anker werden somit in diesem Zustand auch keine Kräfte auf die Kontaktfeder 121 des Arbeitskontakts ausgeübt, so dass der Arbeitskontakt 119 geöffnet ist. Durch eine Rückstellfeder 127 in Verbindung mit einem magnetischen Rückstellmoment wird sichergestellt, dass sich der Anker 113 stets in einer Position befindet, in der der Ruhekontakt 123 geschlossen ist, wenn keine weiteren elektromagnetischen oder manuellen Kräfte auf den Anker ausgeübt werden.When the slide 101 is not actuated, the
In der in
Das verformbare Kraftübertragungselement 105 ist in
Der in der Ausführung gemäß
Neben einer manuellen Betätigung über den Schieber 101 kann der elektromagnetische Schalter 100 in der in
Die manuelle Betätigung des als Relais ausgeführten elektromagnetischen Schalters 100 aus
Im in
In der in
Wie bereits vorstehen beschrieben, weist das verformbare Kraftübertragungselement 105 in der dargestellten Ausführung eine Zunge 107 auf, über die die vom Benutzer auf den Schieber 101 ausgeübte Kraft auf das verformbare Kraftübertragungselement übertragen wird. Das verformbare Kraftübertragungselement 105 weist weiterhin einen Rahmen 109 auf. Eine derartige Ausführung eines verformbaren Kraftübertragungselements 105 wird nachfolgend bei der Erläuterung der
Im in
In der in
In dem in
In dem in
Das verformbare Kraftübertragungselement 105 ist durch seine Geometrie und die Elastizitäten so ausgebildet, dass die maximal vom Schieber 101 über das verformbare Kraftübertragungselement 105 auf den Anker 113 übertragbare Kraft geringer als die Kraft ist, die zu einer plastischen, d.h. dauerhaften Verformung der Kontaktfeder 125 des Ruhekontaktes 123 führen würde. D.h. bevor eine plastische Verformung der Kontaktfeder 125 des Ruhekontaktes 123 auftritt, werden die Kräfte, die hierfür erforderlich wären, durch eine elastische Verformung der Zunge 107 relativ zum Rahmen 109 des verformbaren Kraftübertragungselementes 105 begrenzt. Das verformbare Kraftübertragungselement 105, und insbesondere sein Rahmen 109, ist in der in den
In der in den
Am Kraftübertragungselement 105 ist eine Zunge 107 ausgebildet, die durch den Rahmen 109 umgeben wird. Rahmen 109 und Zunge 107 sind dort, wo sie in den hinteren Abschnitt 405 des Kraftübertragungselements 105 übergehen, miteinander verbunden. Die Zunge 107 ist so geformt, dass sie aus der durch das Kraftübertragungselement 105 aufgespannten Ebene herausragt. Dadurch ragt die Zunge in eingebautem Zustand in Richtung Schieber 101, so dass bei Bewegung des Schiebers 101 in Betätigungsrichtung 103 durch den Schieber 101 Kräfte auf die Flanke der Zunge 107 ausgeübt werden können.A
Zwischen Rahmen 109 und Zunge 107 ist ein Schlitz 401 ausgebildet, der eine Bewegung der Zunge 107 relativ zum Rahmen 109 ermöglicht. Der Schlitz 401 umrahmt ein Fenster 409, in dem die Zunge 107 angeordnet ist, und in dem sich die Zunge 107 beim Aufbringen von Kräften relativ zum Rahmen 109 bewegen kann.A
In einem vorderen Abschnitt 403 ist das Kraftübertragungselement 105 umgefalzt, wodurch das Fenster 409 für die Bewegung der Zunge 107 verkleinert wird, so dass der vordere Abschnitt 501 der Zunge 107 (siehe
Das verformbare Kraftübertragungselement 105 ist in sich vorgespannt, d.h. der Abschnitt des Kraftübertragungselementes 105, in dem Zunge 107 und Rahmen 109 angeordnet sind, ist aus der Ebene des Abschnittes 405 heraus, in dem das Kraftübertragungselement 105 in eingebautem Zustand am Anker befestigt wird, in Richtung des Schiebers vorgespannt bzw. hochgebogen. Der Grad der Vorspannung beeinflusst dabei mit die Höhe der Kraft, die vom Schieber 101 über die Zunge 107 und den Rahmen 109 auf den Anker 113 übertragen wird.The deformable
In dem in
- 100100
- elektromagnetischer Schalterelectromagnetic switch
- 101101
- SchieberSlider
- 103103
- BetätigungsrichtungOperating direction
- 105105
- verformbares Kraftübertragungselementdeformable force transmission element
- 107107
- Zungetongue
- 109109
- Rahmenframe
- 111111
- Vertiefungdeepening
- 113113
- Ankeranchor
- 115115
- BefestigungselementFastener
- 117117
- Vorsprunghead Start
- 119119
- ArbeitskontaktWorking contact
- 121121
- Kontaktfeder des ArbeitskontaktsContact spring of the normally open contact
- 123123
- RuhekontaktBreak contact
- 125125
- Kontaktfeder des RuhekontaktsContact spring of the normally closed contact
- 127127
- RückstellfederReturn spring
- 401401
- Schlitzslot
- 403403
- vorderer Abschnitt des Kraftübertragungselementsfront portion of the power transmission element
- 405405
- hinterer Abschnitt des Kraftübertragungselementsrear section of the power transmission element
- 407407
- BefestigungsbohrungenMounting holes
- 409409
- Fensterwindow
- 501501
- vorderer Abschnitt der Zungefront section of the tongue
Claims (15)
- Electromagnetic switch (100), comprising:an anchor (113);a slider (101), which can be moved manually to actuate the anchor (113); anda deformable force transmission element (105), which is arranged between the slider (101) and the anchor (113), the slider (101) being able to be pressed against the deformable force transmission element (105) for actuating the anchor (113) with a pressing force, wherein the deformable force-transmitting element (105) is deformable by the pressing force when exceeding a pressing force limit value, in order to limit the pressing force transferable from the slider (101) to the anchor (113),characterized in that the deformable force transmission element (105) comprises a deformable tongue (107), the slider (101) being able to be pressed against the deformable tongue (107), the deformable tongue (107) being deformable when the pressure force limit value is exceeded, to receive the pressing force of the slider (101).
- Electromagnetic switch (100) according to claim 1, wherein the deformable force transmission element (105) is connected to the anchor (113), in particular is adhesively or force-fittingly connected.
- Electromagnetic switch (100) according to one of the preceding claims, wherein the deformable force transmission element (105) is plastically or elastically deformable.
- Electromagnetic switch (100) according to one of the preceding claims, wherein the deformable force transmission element (105) comprises a circumferential frame (109), which is fastened to the anchor (113), wherein a window (110) in the circumferential frame (109) ) is formed, wherein the deformable tongue (107) is supported on one side on the circumferential frame (109) and can be at least partially received through the window (110) when deformed.
- Electromagnetic switch according to claim 4, wherein the deformable tongue is formed by a partially circumferential slot in a piece of material, the circumferential frame surrounds the partially circumferential slot, and wherein the deformable tongue is cut free by the slot from the piece of material and protrudes from a plane of the material piece.
- Electromagnetic switch (100) according to one of the preceding claims, wherein the deformable tongue (107) is wave-shaped, and wherein a wave flank of the deformable tongue (107) can be acted upon with the slider (101).
- Electromagnetic switch (100) according to one of the preceding claims, wherein the pressing force limit value is dependent on a geometric shape of the tongue (107).
- Electromagnetic switch (100) according to one of the preceding claims, wherein the deformable force transmission element (105) is adapted to transmit a pressing force from the slider (101) to the anchor (113), if the pressing force does not exceed the pressing force limit value to actuate the anchor (113).
- Electromagnetic switch (100) according to one of the preceding claims, which has an electromechanical contact (119, 123), which is freely detachable in the non-fixed contact state, wherein the electromechanical contact (119, 123) is detachable through the anchor (113) with a releasing force acting on the deformable force transmission element (105), and wherein the pressing force limit value is greater than the releasing force.
- Electromagnetic switch according to claim 9, wherein the electromechanical contact (119, 123) in the fixed state, in particular in the event of overcurrent welding, cannot be released with the release force, and wherein the deformable force transmission element (105) is adapted to prevent a release of the electromechanical contact (119, 123) by deformation.
- Electromagnetic switch (100) according to claim 9 or 10, wherein the electromechanical contact (119, 123) in the fixed state, in particular with overcurrent-related welding, cannot be released with the releasing force, and wherein the deformable force transmission element (105) is adapted to prevent a plastic deformation of components of the electromagnetic switch (100), in particular of contact springs (121, 125).
- Electromagnetic switch (100) according to one of the preceding claims, wherein the deformable force transmission element (105) is adapted to prevent breakage of the slider (101) by mechanical overloading by deformation.
- Electromagnetic switch (100) according to one of the preceding claims, wherein the deformable force transmission element (105) is formed in one piece, in particular from metal.
- Electromagnetic switch (100) according to any one of the preceding claims, which is a relay.
- An electromagnetic switch according to one of the preceding claims, wherein the contacts (119, 123) are positively guided.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016109486.2A DE102016109486B3 (en) | 2016-05-24 | 2016-05-24 | Electromagnetic switch |
PCT/EP2017/062329 WO2017202803A1 (en) | 2016-05-24 | 2017-05-23 | Electromagnetic switch |
Publications (2)
Publication Number | Publication Date |
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EP3465723A1 EP3465723A1 (en) | 2019-04-10 |
EP3465723B1 true EP3465723B1 (en) | 2020-11-04 |
Family
ID=58765837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP17725238.4A Active EP3465723B1 (en) | 2016-05-24 | 2017-05-23 | Electromagnetic switch |
Country Status (6)
Country | Link |
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US (1) | US11127541B2 (en) |
EP (1) | EP3465723B1 (en) |
JP (2) | JP7044716B2 (en) |
CN (1) | CN109155220B (en) |
DE (1) | DE102016109486B3 (en) |
WO (1) | WO2017202803A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102019107223A1 (en) * | 2019-03-21 | 2020-09-24 | Johnson Electric Germany GmbH & Co. KG | Electric switch |
DE102019107222A1 (en) * | 2019-03-21 | 2020-09-24 | Johnson Electric Germany GmbH & Co. KG | Electric push button switch |
DE102019117804B4 (en) * | 2019-07-02 | 2021-08-12 | Johnson Electric Germany GmbH & Co. KG | Switching device with an electrical contact system |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2618572C3 (en) | 1976-04-28 | 1979-03-15 | Rudolf Schadow Gmbh, 1000 Berlin | Slide switch |
SU1024994A2 (en) | 1981-12-29 | 1983-06-23 | Предприятие П/Я А-7451 | Electromagnetic polarized switch |
DE8320066U1 (en) * | 1983-07-12 | 1983-12-01 | Siemens AG, 1000 Berlin und 8000 München | Slide switch |
US4841109A (en) * | 1986-08-28 | 1989-06-20 | Omron Tateisi Electronics Co. | Slide switch |
CA2085967C (en) | 1991-12-24 | 1997-11-11 | Kazuhiro Nobutoki | Polarized relay |
JPH08203383A (en) * | 1995-01-31 | 1996-08-09 | Kansei Corp | Microswitch |
DE10027361C1 (en) * | 2000-06-02 | 2002-01-03 | Tyco Electronics Gmbh Wien | relay |
DE10239284B4 (en) | 2001-09-26 | 2021-01-07 | Te Connectivity Germany Gmbh | Electromagnetic relay with non-linear force-displacement behavior of the contact spring and contact spring |
JP4943949B2 (en) | 2007-06-08 | 2012-05-30 | ウチヤ・サーモスタット株式会社 | Electromagnetic relay |
DE102012006438A1 (en) * | 2012-03-30 | 2013-10-02 | Phoenix Contact Gmbh & Co. Kg | Relay with two counter-operable switches |
DE102012006450A1 (en) | 2012-03-30 | 2013-10-02 | Phoenix Contact Gmbh & Co. Kg | Relay with positively driven contacts |
JP7306087B2 (en) | 2019-06-14 | 2023-07-11 | 三菱ケミカル株式会社 | Film and laminate manufacturing method |
-
2016
- 2016-05-24 DE DE102016109486.2A patent/DE102016109486B3/en not_active Expired - Fee Related
-
2017
- 2017-05-23 WO PCT/EP2017/062329 patent/WO2017202803A1/en unknown
- 2017-05-23 JP JP2018559874A patent/JP7044716B2/en active Active
- 2017-05-23 CN CN201780031590.6A patent/CN109155220B/en active Active
- 2017-05-23 US US16/303,085 patent/US11127541B2/en active Active
- 2017-05-23 EP EP17725238.4A patent/EP3465723B1/en active Active
-
2020
- 2020-10-29 JP JP2020181384A patent/JP7025509B2/en active Active
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Also Published As
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EP3465723A1 (en) | 2019-04-10 |
JP2021044244A (en) | 2021-03-18 |
JP7025509B2 (en) | 2022-02-24 |
DE102016109486B3 (en) | 2017-09-21 |
US20190304712A1 (en) | 2019-10-03 |
US11127541B2 (en) | 2021-09-21 |
WO2017202803A1 (en) | 2017-11-30 |
CN109155220B (en) | 2020-07-03 |
JP2019517104A (en) | 2019-06-20 |
CN109155220A (en) | 2019-01-04 |
JP7044716B2 (en) | 2022-03-30 |
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