EP3844790A1 - Schaltvorrichtung - Google Patents
SchaltvorrichtungInfo
- Publication number
- EP3844790A1 EP3844790A1 EP19755629.3A EP19755629A EP3844790A1 EP 3844790 A1 EP3844790 A1 EP 3844790A1 EP 19755629 A EP19755629 A EP 19755629A EP 3844790 A1 EP3844790 A1 EP 3844790A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching device
- permanent magnet
- magnetic
- switch
- magnet
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/0006—Permanent magnet actuating reed switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/0006—Permanent magnet actuating reed switches
- H01H36/0013—Permanent magnet actuating reed switches characterised by the co-operation between reed switch and permanent magnet; Magnetic circuits
- H01H36/0026—Permanent magnet actuating reed switches characterised by the co-operation between reed switch and permanent magnet; Magnetic circuits comprising a biasing, helping or polarising magnet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
-
- 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
- H01H51/00—Electromagnetic relays
- H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
- H01H2050/025—Details concerning sealing, e.g. sealing casing with resin containing inert or dielectric gasses, e.g. SF6, for arc prevention or arc extinction
Definitions
- a switching device is specified.
- the switching device is in particular as a through
- Switching device can be activated via a control circuit and can switch a load circuit.
- the switching device can be designed as a relay or as a contactor, in particular as a power contactor.
- the switching device can particularly preferably be a gas-filled one
- Disconnect battery circuits for example in
- Motor vehicles such as electrically or partially electrically operated motor vehicles. These can be purely battery-operated vehicles, for example (BEV: “Battery Electric
- auxiliary contacts to the main contact.
- the main contacts of the contactor are located in a hermetically sealed, gas-filled room, the implementation of such measures is very complex, since in the case of auxiliary contacts, their lines must also be leak-proof to the outside.
- a separate switch element in particular a microswitch, which is also actuated via a mechanical coupling to the main switching contact by its switching movement.
- a microswitch like any mechanical switch is subject to the usual signs of wear.
- At least one object of certain embodiments is to specify a switching device, particularly preferably a switching device in which the disadvantages described can be prevented or at least reduced. This task is accomplished by an object according to the
- a switching device has at least one fixed contact and at least one movable contact.
- the at least one fixed contact and the at least one movable contact are provided and set up to switch a load circuit that can be connected to the switching device on and off.
- the movable contact is accordingly in the switching device between a non-switching state, in the following also as a non-active or switched-off state
- switching state has a mechanical contact to the at least one fixed contact and is thus galvanically connected to the at least one fixed contact.
- the fact that the switching device has at least one fixed contact can particularly preferably also mean that the switching device has at least two
- Movable contact can be, for example, with or made of Cu, a Cu alloy, one or more refractory metals such as W, Ni and / or Cr, or a mixture of said materials, for example copper with at least one other metal, for example W, Ni and / or Cr.
- the movable contact can in particular be arranged completely in the housing.
- a fixed contact which is in the switching state in mechanical contact with the movable contact, is arranged within the housing.
- a fixed contact arranged in the housing can be electrically connected from the outside, that is to say from the outside of the housing
- a fixed contact arranged in the housing can be made with a part from the housing
- the switching chamber can in particular be arranged in the housing.
- the movable contact can particularly preferably be completely in the switching chamber
- Switching chamber is arranged, in particular can mean that at least one contact area of the fixed contact, which is in mechanical contact with the movable contact in the switching state, within the switching chamber
- a fixed contact arranged in the switching chamber can be electrically contactable from the outside, that is to say from outside the switching chamber.
- a stationary contact with a part arranged in the switching chamber can protrude from the switching chamber and one outside the switching chamber
- the magnet armature can have an axis which is connected at one end to the movable contact in such a way that the movable contact can be moved by means of the axis, that is to say at one
- Movement of the axis is also moved by this.
- the axis can in particular through an opening in the
- the switching chamber can have a switching chamber base which has an opening through which the axis projects.
- the magnetic armature can be movable by a magnetic circuit in order to effect the switching operations described above.
- the magnetic circuit can have a yoke which has an opening through which the axis of the magnet armature projects.
- the magnetic armature can have a magnetic core which can be attached to an end of the axis opposite the movable contact and which is part of the magnetic circuit.
- a coil which can be connected to a control circuit, can generate a magnetic field in the magnetic circuit, through which the magnet armature is moved.
- the axis can preferably have stainless steel or be made of it.
- the yoke and / or the magnetic core can preferably have or be pure iron or a low-doped iron alloy.
- the switching chamber in particular the switching chamber wall and / or the switching chamber floor, can
- the switching chamber can be made of polyether ether ketone (PEEK), a polyethylene (PE) and / or glass-filled plastic
- the switching chamber can at least partially also have a polyoxymethylene (POM), in particular with the structure (CPhO) ⁇ .
- POM polyoxymethylene
- the contacts are arranged in a gas atmosphere.
- the switching device can have a gas-tight area in which the
- the gas-tight area can pass through Parts of the housing and / or are formed by additional walls and / or by components within the housing.
- the gas-tight area can be combined with parts of the switching chamber wall and the yoke
- the switching chamber can be arranged in the gas-tight area of the switching device.
- the magnetic armature can also be used
- the switching device can particularly preferably be a gas-filled switching device such as a gas-filled contactor.
- the gas atmosphere can in particular promote the extinguishing of arcs that can occur during the switching processes between the contacts.
- the gas in the gas atmosphere can preferably have a proportion of at least 50%
- the gas can have an inert gas, particularly preferably N2 and / or one or more noble gases.
- the gas that is to say at least part of the gas atmosphere, can be in the
- the magnetic switch can be switched on and off by the action of magnetic fields.
- the magnetic switch can be switched on and off by the action of magnetic fields.
- the magnetic switch can preferably be a reed switch.
- Reed switches can, for example, be in one contact blade
- the magnetic switch can particularly preferably be an on switch, ie a reed switch, which is in an open state in the absence of magnetic fields.
- a switch can also be referred to as a NO switch (NO: “normally open”).
- the first permanent magnet can in particular be attached to the magnet armature. Together with the contacts of
- Switching device and the armature can be the first
- Permanent magnet can thus be arranged within the gas-tight area.
- Magnet armature can be arranged.
- the first permanent magnet can be attached to the magnetic core and / or to the axis of the magnet armature.
- the first permanent magnet can be a bar magnet or a disc magnet or a
- the first can be particularly preferred
- Permanent magnet be a ring magnet, which are arranged symmetrically to the axis of the magnet armature.
- Magnetic armature can be the first permanent magnet through the
- the magnetic switch and the first permanent magnet can in particular be arranged relative to one another in such a way that the magnetic field generated by the first permanent magnet at the location of the magnetic switch in
- switched-on state of the switching device is weaker than when the switching device is switched off.
- the magnet armature Along the direction of movement of the magnet armature, the
- Magnetic switch for example, below the first Permanent magnets, that is, be arranged at the end of the magnet armature to which the first permanent magnet is attached.
- the magnetic switch can be centered along an imaginary extension of the axis of the magnet armature or slightly offset from it below the magnet armature and the first
- Permanent magnets can be arranged. When the switching device is switched on, the first permanent magnet can be at a greater distance from the magnetic switch than in
- Switching device on a second permanent magnet which is arranged in a fixed position relative to the magnetic switch.
- that can mean the second
- the second permanent magnet can be attached to a part of the housing together with the magnetic switch.
- the second permanent magnet and the magnetic switch can be arranged outside the gas-tight area. This enables simple contacting of the magnetic switch.
- the second permanent magnet can be designed and arranged relative to the magnetic switch that the
- Magnetic switch is in a closed state in the absence of further magnetic fields.
- the second permanent magnet can thus generate a magnetic field, by means of which the magnetic switch is kept in a closed state in the absence of further magnetic fields.
- NC switch so-called "normally closed”
- the second permanent magnet can be designed and arranged relative to the magnetic switch in such a way that the magnetic switch is moved through the second permanent magnet
- Permanent magnet is in such a position
- the magnetic switch and the second permanent magnet can be designed and arranged in such a way that the magnetic switch also during operation of the coil
- the second permanent magnet can be a bar magnet or a disc magnet or a ring magnet.
- the first permanent magnet can be designed in such a way that it generates a magnetic field which is generated by a
- Magnetic field of the second permanent magnet weakens.
- the magnetic field of the first permanent magnet when the switching device is switched off can weaken the magnetic field of the second permanent magnet in such a way that the magnetic switch is in the open state.
- the magnetic field of the second permanent magnet when the switching device is switched off can weaken the magnetic field of the second permanent magnet in such a way that the magnetic switch is in the open state.
- Magnet armature is caused, influenced and weakened in this way that the magnetic switch no longer remains in the closed state, but changes to the open state. Accordingly, the magnetic switch can be in an open state when the switching device is in the
- the first permanent magnet, the second permanent magnet and the magnetic switch which is preferably used as an on switch
- the magnetic switch is closed and vice versa.
- This can be achieved in particular by a suitable arrangement of the permanent magnets and by a suitable size and orientation of the magnetic fields generated by the permanent magnets, which can in particular be dimensioned such that magnetic interference fields, for example caused by the coil of the magnetic circuit for switching the switching device and by external magnetic fields, have no influence on the switching activity of the magnetic switch.
- the switching device described here can thus make do with a simple reed switch designed as an on switch as a magnetic switch. Without the second permanent magnet, the magnetic switch, if it is designed as an on switch, would be set into the closed state by the first permanent magnet when the switching device is in the switched-off state, and vice versa.
- a reed switch designed as a changeover switch could then be used, which is designed as a double contact switch with an NO contact and an NC contact.
- switches are more expensive and moreover more susceptible to faults than simple on-switches. The latter is still easier to position because simple reed switches are smaller and more robust than reed switches.
- FIGS. 1A and 1B are schematic representations of an example of a switching device
- Figures 2A to 2C are schematic representations of part of the switching device according to an embodiment.
- identical, similar or identically acting elements can each be provided with the same reference symbols.
- the elements shown and their size relationships among one another are not to be regarded as true to scale; rather, individual elements, such as, for example, layers, components, components and areas, can be exaggeratedly large for better illustration and / or better understanding.
- FIGS. 1A and 1B show a switching device 100 which can be used, for example, to switch strong electrical currents and / or high electrical voltages and which can be a relay or contactor, in particular a power contactor.
- 1A is one
- FIGS. 1A and 1B The following description likewise relates to FIGS. 1A and 1B.
- the geometries shown are only to be understood as examples and are not to be understood as restrictive, and can also be designed as alternatives.
- the switching device 100 has two fixed contacts 2, 3 and a movable contact 4 in a housing 1.
- the movable contact 4 is a contact plate
- the fixed contacts 2, 3 together with the movable contact 4 form the switching contacts.
- the movable contact 4 form the switching contacts.
- other numbers of fixed and / or movable contacts may also be possible.
- the housing 1 serves primarily as a touch guard for the components arranged inside and has a plastic or is PBT or glass fiber-filled PBT, for example.
- the contacts 2, 3, 4 can, for example, with or from Cu, a Cu alloy or a mixture of
- Copper with at least one other metal for example W, Ni and / or Cr.
- the switching device 100 is shown in an idle state in which the movable contact 4 is spaced apart from the fixed contacts 2, 3, so that the contacts 2, 3, 4 are electrically isolated from one another.
- switch contacts shown and in particular their geometry are to be understood as purely exemplary and not restrictive.
- the switch contacts can also be designed differently.
- the switching device 100 has a movable magnet armature 5 which essentially executes the switching movement.
- the magnet armature 5 has a magnetic core 6,
- the magnet armature 5 has an axis 7 which is guided through the magnetic core 6 and is fixedly connected to the magnetic core 6 at one axis end. At the other, opposite the magnetic core 6 opposite end of the magnet armature 5 has the movable contact 4, the
- the axis 7 can preferably be made with or from stainless steel.
- the magnetic core 6 is surrounded by a coil 8.
- a current flow in the coil 8 which can be switched on from the outside by a control circuit generates a movement of the magnetic core 6 and thus of the entire magnet armature 5 in the axial direction until the movable contact 4 contacts the fixed contacts 2, 3.
- the magnet armature moves upwards.
- the magnet armature 5 thus moves from a first position, which corresponds to the idle state shown and, at the same time, to the disconnecting, that is to say non-switching and therefore switched off, state, into a second position which corresponds to the active, that is to say switching through and thus switched on, state.
- contacts 2, 3, 4 are galvanically connected to one another. If the current flow in the coil 8 is interrupted, the
- Magnetic armature 5 is moved back into the first position by one or more springs 10. In the illustration shown, the magnet armature 5 thus moves down again.
- the contacts 2, 3, 4 are arranged in a gas atmosphere, so that the
- Switching device 100 as a gas-filled relay or gas-filled contactor is formed.
- the contacts 2, 3, 4 are arranged within a switching chamber 11, formed by a switching chamber wall 12 and a switching chamber floor 13, in a gas-tight area 16 formed by a hermetically sealed part.
- the gas-tight area 16 completely surrounds the magnet armature 5 and the contacts 2, 3, 4, except for parts of the fixed contacts 2, 3 provided for the external connection.
- the gas-tight area 16 and thus also the switching chamber 11 are filled with a gas 14.
- the gas-tight area 16 is essentially formed by parts of the switching chamber 11, the yoke 9 and additional walls.
- the gas 14, which can be filled into the gas-tight area 16 through a gas filler neck 15 during the manufacture of the switching device 100, can be particularly preferably hydrogen-containing, for example with 50% or more H2 in an inert gas or even with 100% H 2 , since hydrogen-containing gas can promote the extinguishing of arcs. Furthermore, inside or outside of the gas 14, which can be filled into the gas-tight area 16 through a gas filler neck 15 during the manufacture of the switching device 100, can be particularly preferably hydrogen-containing, for example with 50% or more H2 in an inert gas or even with 100% H 2 , since hydrogen-containing gas can promote the extinguishing of arcs. Furthermore, inside or outside of the
- blow magnets (not shown) may be present, that is to say permanent magnets which bring about an extension of the arc gap and can thus improve the extinguishing of the arcs.
- the switching chamber wall 12 and the switching chamber floor 13 can be made, for example, with or from a metal oxide such as Al 2 O 3. Plastics with a sufficiently high level are also suitable
- Temperature resistance for example a PEEK, a PE
- the switching chamber 11 can at least partially also have a POM, in particular with the structure (CH20) n .
- the Switching device 100 on further components, which are not shown in Figures 1A and 1B for clarity and which are described in connection with Figures 2A to 2C.
- the switching device 100 in particular also has a first permanent magnet 17 and a second one
- FIG. 2A there are essentially only those components and parts of the switching device 100 of FIGS. 1A and 1B
- the first permanent magnet 17 is together with the contacts 2, 3, 4 and the magnet armature 5 within the gas-tight
- Area 16 is arranged and is in particular on the
- the first permanent magnet 17 can be designed as a ring magnet and can be attached to the magnetic core 6 of the magnet armature 5.
- the first permanent magnet 17 can also be designed as a bar or disc magnet and, alternatively or additionally, can also be attached to the axis 7.
- first permanent magnet 17 Arrangement of the first permanent magnet 17 symmetrically in With respect to the axis 7, the first permanent magnet 17 can also be arranged and fastened at a different position, in particular if the functionality described below can be improved together with the second permanent magnet 18 and the magnetic switch 19.
- the second permanent magnet 18 is together with the
- the second permanent magnet 18 and the magnetic switch 19 are each installed in a fixed position in the housing, so that the second permanent magnet 18 is arranged in a fixed position relative to the magnetic switch 19.
- Permanent magnet 18 can for example be a bar magnet or alternatively also a ring or disc magnet. As shown in Figures 2A to 2C, the second
- Permanent magnet 18 and the magnetic switch 19 can be arranged along the direction of movement of the magnet armature 5 below the first permanent magnet 17. As shown, an arrangement symmetrical to axis 7 can be possible. As already mentioned in relation to the first permanent magnet 17, the positions of the second permanent magnet 18 and / or of the magnetic switch 19 can also deviate from the positions shown, in particular if this can improve the functionality of the components mentioned.
- the magnetic switch 5 is a simple reed switch
- the magnetic switch can have contact tongues 191, for example in a sealed glass tube 192 with a protective gas filling or vacuum, which, depending on the magnetic field acting on it are mechanically separated from each other, which corresponds to the open state of the magnetic switch 19, or touch, which corresponds to the closed state of the magnetic switch 19.
- the magnetic switch 5 is in particular in the form of a
- the second permanent magnet 18 is designed and arranged relative to the magnetic switch 19 that the
- Magnetic field generated by the second permanent magnet 18 at the location of the magnetic switch 19 is so large that the magnetic switch 19 is at least in the absence of further magnetic fields in a closed state.
- the second permanent magnet 18 thus generates a sufficiently large magnetic field that the magnetic switch 19 is always kept in a closed state in the absence of further magnetic fields.
- the first permanent magnet 17 is arranged and designed such that it has the magnetic field of the second at a sufficiently small distance from the magnetic switch 19 and from the second permanent magnet 18
- Permanent magnet 18 can at least partially compensate. On the other hand, if the first permanent magnet 17 is far enough from the magnetic switch 19 and from the second permanent magnet 18, none or only a small one occurs
- the magnetic switch 19 and the first permanent magnet 17 are arranged relative to one another in accordance with the previous description such that the magnetic field generated by the first permanent magnet at the location of the magnetic switch is weaker when the switching device 100 is on than when the switching device 100 is off
- the first permanent magnet 17, as shown in FIG. 2C is so close to the magnetic switch 19 and to the second
- Permanent magnet 18 is compensated to such an extent that the resulting magnetic field is no longer large enough to hold the magnetic switch 19 in the closed state and the magnetic switch 19 is in an open state.
- the magnetic switch 19 is in an open state when the switching device 100 is in the switched-off state.
- the state of the switching device 100 can thus be recognized directly. In particular, it can be easily recognized if the
- Switching device 100 is still in the active state due to a contactor adhesive, although the current for the
- Magnetic armature 5 moving coil is already turned off and the switching device 100 accordingly in the inactive
- Embodiments are combined with each other, even if not all combinations are explicitly described.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Contacts (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018120987.8A DE102018120987A1 (de) | 2018-08-28 | 2018-08-28 | Schaltvorrichtung |
| PCT/EP2019/072041 WO2020043516A1 (de) | 2018-08-28 | 2019-08-16 | Schaltvorrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3844790A1 true EP3844790A1 (de) | 2021-07-07 |
| EP3844790B1 EP3844790B1 (de) | 2023-03-01 |
Family
ID=67660580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19755629.3A Active EP3844790B1 (de) | 2018-08-28 | 2019-08-16 | Schaltvorrichtung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11955301B2 (de) |
| EP (1) | EP3844790B1 (de) |
| DE (1) | DE102018120987A1 (de) |
| WO (1) | WO2020043516A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114946006B (zh) * | 2020-01-23 | 2025-06-10 | 三菱电机株式会社 | 开闭器 |
| CN113948338B (zh) * | 2021-08-30 | 2024-02-09 | 上海西艾爱电子有限公司 | 一种陶瓷直流接触器的辅助开关装置及接触器 |
| CN117995610B (zh) * | 2024-04-07 | 2024-07-05 | 杭州沃镭智能科技股份有限公司 | 一种可长时间保持闭合或断开的电磁铁开关结构 |
| DE102024115628B3 (de) * | 2024-06-05 | 2025-11-13 | Song Chuan Precision Co., Ltd. | Magnetschalterstruktur für Relais |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE143670C (de) | ||||
| GB1254066A (en) * | 1968-03-20 | 1971-11-17 | Int Standard Electric Corp | Polarized sealed contact relay |
| DD143670A1 (de) * | 1979-05-14 | 1980-09-03 | Christian Hesse | Mechanisch betaetigtes reed-relais |
| EP0283781B1 (de) * | 1987-03-10 | 1993-01-20 | Kabushiki Kaisha Toshiba | Schalteinrichtung |
| US5811896A (en) * | 1996-12-06 | 1998-09-22 | Boris Grad | Switching device |
| US7173506B2 (en) * | 2003-04-25 | 2007-02-06 | Rochester Gauges, Inc. | Dial assembly with magnetically biased reed switch |
| DE102007002176B4 (de) * | 2007-01-15 | 2018-07-19 | Siemens Aktiengesellschaft | Erfassungseinrichtung zum Erfassen des Schaltzustands eines elektromagnetischen Schaltgeräts |
| DE102007028940A1 (de) | 2007-06-22 | 2009-01-02 | Bruno Gruber | Schaltvorrichtung mit einem Reed-Kontakt |
| JP5163318B2 (ja) * | 2008-06-30 | 2013-03-13 | オムロン株式会社 | 電磁石装置 |
| JP5771779B2 (ja) * | 2011-03-22 | 2015-09-02 | パナソニックIpマネジメント株式会社 | 電磁開閉装置 |
| JP2012199115A (ja) * | 2011-03-22 | 2012-10-18 | Panasonic Corp | 電磁開閉装置 |
| JP5778989B2 (ja) * | 2011-05-19 | 2015-09-16 | 富士電機機器制御株式会社 | 電磁接触器 |
| CH708237A2 (de) | 2013-06-18 | 2014-12-31 | Markus Bräm | Manipulationssicherer Schalter und manipulationssicheres Verfahren insbesondere zur Überwachung von Türen, Fenstern etc. |
| DE102014212132A1 (de) * | 2014-06-25 | 2015-12-31 | Te Connectivity Germany Gmbh | Schaltanordnung |
| CN204011293U (zh) | 2014-07-17 | 2014-12-10 | 昆山国力真空电器有限公司 | 直流接触器用辅助触点 |
| DE102016107127B4 (de) * | 2016-01-29 | 2025-12-18 | Tdk Electronics Ag | Relais |
-
2018
- 2018-08-28 DE DE102018120987.8A patent/DE102018120987A1/de not_active Withdrawn
-
2019
- 2019-08-16 WO PCT/EP2019/072041 patent/WO2020043516A1/de not_active Ceased
- 2019-08-16 US US17/271,480 patent/US11955301B2/en active Active
- 2019-08-16 EP EP19755629.3A patent/EP3844790B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018120987A1 (de) | 2020-03-05 |
| US11955301B2 (en) | 2024-04-09 |
| EP3844790B1 (de) | 2023-03-01 |
| WO2020043516A1 (de) | 2020-03-05 |
| US20210287864A1 (en) | 2021-09-16 |
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