WO2022184256A1 - Vorrichtung zum schalten einer handhabe eines elektrischen schalters und multifunktionsantrieb mit solch einer vorrichtung - Google Patents
Vorrichtung zum schalten einer handhabe eines elektrischen schalters und multifunktionsantrieb mit solch einer vorrichtung Download PDFInfo
- Publication number
- WO2022184256A1 WO2022184256A1 PCT/EP2021/055399 EP2021055399W WO2022184256A1 WO 2022184256 A1 WO2022184256 A1 WO 2022184256A1 EP 2021055399 W EP2021055399 W EP 2021055399W WO 2022184256 A1 WO2022184256 A1 WO 2022184256A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drive
- handle
- actuator
- multifunction
- electrical switch
- Prior art date
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 13
- 230000033001 locomotion Effects 0.000 claims description 24
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
- H01H71/0271—Mounting several complete assembled circuit breakers together
- H01H2071/0278—Mounting several complete assembled circuit breakers together with at least one of juxtaposed casings dedicated to an auxiliary device, e.g. for undervoltage or shunt trip
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/66—Power reset mechanisms
- H01H2071/665—Power reset mechanisms the reset mechanism operating directly on the normal manual operator, e.g. electromagnet pushes manual release lever back into "ON" position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/03—Application domotique, e.g. for house automation, bus connected switches, sensors, loads or intelligent wiring
-
- 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
Definitions
- the invention relates to a device for switching a handle of an electrical switch and a multifunction drive with such a device.
- the main task of today's circuit breakers is the switching on or off of current and voltage from a system section, as well as the automatic tripping of the circuit breaker in the event of an overload or a short circuit.
- circuit breakers When delivered, circuit breakers typically have a toggle lever, also known as a handle, with which the customer can switch the circuit breaker on or off. If the circuit breaker has tripped in the event of an overload or short circuit, the customer can reset the circuit breaker using the same toggle lever or handle.
- a toggle lever also known as a handle
- the rocker arm or the handle, describes a translational movement, i.e. it is moved linearly in one direction for switching.
- Some customers do not want circuit breakers to be operated with a translatory motion, but rather with a rotary motion.
- rotary drives Rotary Handle Operator, RHO
- a spring-loaded motor drive requires a few seconds after it has been triggered before it has loaded the spring store for the next switching operation.
- rotary drives are typically manufactured as complex, high-structure gear assemblies, in which the customer has to operate a rotary handle with a great deal of effort. This rotary movement is converted into a translational movement in the rotary drive, which in turn actuates the switch handle. While the customer can still move small circuit breakers with two fingers, he needs his whole hand to be able to apply the appropriate torque to the rotary handle for large assemblies. Very large switches have rotary actuators with a rotary handle that has a sufficiently long lever to be able to apply the required torque manually.
- motor drives are usually even higher than rotary drives. Inside they have an electric motor and also a gear that converts the rotary movement of the motor into a translatory movement for the switch handle. In order to control the motor drive and its positions accordingly, complex electronics with appropriate sensors, such as limit switches, are required.
- Motor-loaded motor drives are mechanically even higher than motor drives because, in addition to the motor, gears and electronics, they also have an integrated spring store for fast switching. Overall, like circuit breakers, motor drives and stored energy motor drives are very complex assemblies that contain many mechanical, electromechanical and electronic components. The manufacturing costs, the manufacturing costs and the costs for the development support are therefore correspondingly high.
- this object is achieved by the device for switching a handle of an electrical switch according to patent claim 1 .
- Advantageous embodiments of the device according to the invention are specified in dependent claims 2 to 4.
- the object is also achieved according to the invention by the multifunction drive according to patent claim 5 .
- the device for switching a handle of an electrical switch comprises at least a first actuator and a second actuator, wherein when the device is mounted on the electrical switch, the first actuator moves the handle in a first direction and the second actuator moves the handle in a second direction Direction opposite to the first direction can move and wherein the first actuator and the second actuator are each shape memory alloy actuators.
- the first actuator when the device is mounted on the electrical switch, the first actuator can move the handle only in a first direction and the second actuator can move the handle only in a second direction opposite to the first direction.
- the device comprises a carriage and when the device is mounted on the electrical switch, the carriage encloses the handle of the electrical switch and the handle is actuated by the movement of the carriage, with the first actuator moving the carriage in a first direction and the second actuator can move the carriage in a second direction opposite to the first direction.
- the carriage is moved along at least one guide.
- the multifunction drive according to the invention according to patent claim 5 comprises a housing and a device according to the invention, the multifunction drive being provided for installation on the electrical switch by means of the housing and the actuators of the device being able to set the handle in motion when the multifunctional drive is installed on the electrical switch.
- the shape memory alloy actuators are designed such that when the multifunction drive is mounted on the electrical switch, the handle can be actuated in less than 50 msec (milliseconds), preferably between 10 msec and 20 msec.
- the advantage here is that the typical construction with a ratchet wheel of a motor drive or a spring-loaded drive can be dispensed with by replacing the shape memory alloy actuators.
- Such a multifunction drive is also much quieter than a motor drive or a spring-loaded motor drive.
- the multi-function drive comprises at least one drive button which, when actuated, can set the actuators of the device in motion.
- This drive button can be mechanically, electrically or wirelessly connected to the rest of the multifunction drive.
- the advantage here is that the drive button can be placed anywhere, for example on the control cabinet door or at another point in the system or in the remote control room.
- the at least one drive button is designed as a rotary drive button or as a button.
- the multi-function drive is actuated by means of an external device which is mechanically, electrically or wirelessly connected to the multi-function drive and which can set the actuators of the device in motion.
- an external device can, for example, be a smartphone, a tablet computer, a notebook or another computer, in particular in a remote control room.
- Figure 1A, 1B and IC conventional motor drive, conventional rotary drive and conventional lateral motor drive;
- FIG. 3A and 3B electrical switch with multifunction drive according to the invention and drive knob and electrical shear switch with multifunction drive according to the invention.
- FIG. 4 multifunction drive according to the invention with drive button and additional drive buttons and external device.
- FIG. 1A Shown in Figure 1A is an electrical switch 1000, such as a circuit breaker.
- a motor drive 5010 (motor operator, MO) is placed, which can actuate the handle of the electric switch 1000 .
- the motor drive 5010 has an electric motor and a transmission inside, which converts the rotational movement of the motor into a translatory movement of the handle of the electrical switch 1000.
- the 5010 motor drive has complex electronics with corresponding sensors, such as limit switches, to control its positions accordingly.
- FIG. 1B shows a rotary drive 5020, which is placed on an electrical switch 1000's.
- the rotary drive 5020 to summarizes a highly structured gear assembly that converts the rotary motion into a translatory motion of the handle of the electrical switch 1000 .
- FIG. 1C shows a side motor drive 5030 which is mounted on the side of the electrical switch 1000 in order to prevent it from being built up too high in the control cabinet.
- FIG. 2A An electrical switch 1000 with a handle 1100 is shown in FIG. 2A.
- the handle 1100 can be moved translationally between different switching states.
- Figure 2B shows the electrical switch 1000 with the handle 1100 and the device 100 according to the invention for switching the handle 1100 of the electrical switch 1000.
- the device 100 comprises a first actuator 110 and a second actuator 120, wherein when the device 100 on the electrical switch 1000, the first actuator 110 can move the handle 1100 in a first direction and the second actuator 120 can move the handle 1100 in a second direction opposite to the first direction.
- the first direction is the movement of the handle 1100 from bottom to top
- the second direction is the movement of the handle 1100 from top to bottom.
- the first actuator 110 and the second actuator 120 are each shape memory alloy actuators.
- Shape memory alloys have the property that they can remember their original shape at a certain higher temperature. This makes it possible to construct shape memory alloy actuators that are constrained to a different position or length at a low temperature. If these actuators are heated to this specific, higher temperature, which is set by the alloy components, then these actuators suddenly resume their learned shape.
- the shape memory alloys can be heated via the environment by means of a heating element, which means indirect heating, or by current flowing through the shape memory alloy itself, which corresponds to direct heating.
- Shape memory alloy actuators can be configured as a wire that contracts at the higher temperature, a metal strip that buckles at the higher temperature, a cuboid that changes volume at the higher temperature, or an arbitrarily shaped geometry that fits optimally into the intended Fits the space available and which, at the higher temperature, changes its expansion or volume in a specific, desired direction.
- the handle 1100 If current is applied to the first actuator 110 for direct heating, the handle 1100 is moved from its lower position, for example the OFF position, to the upper position, for example the ON position. Now, when the second actuator 120 is energized, the handle 1100 is transferred from the upper position, for example the ON position, to the lower position, for example the OFF position.
- the device 100 according to the invention is very low in construction and can therefore be integrated into a housing 510 in a very flat manner.
- first actuator 110 can only move the handle 1100 in a first direction and the second actuator 120 can only move the handle 1100 in a second direction opposite to the first direction .
- FIG. 2B also shows a slide 150 in the device 100, which encloses the handle 1100 of the electrical switch 1000 when the device 100 is mounted on the electrical switch 1000 and the handle 1100 is actuated by the movement of the slide 150.
- the first actuator 110 can move the carriage 150 in a first direction and the second actuator 120 can move the carriage 150 in a second direction opposite to the first direction.
- an inventive multi-function drive 500 is shown with a housing 510 and an inventive according to device 100.
- the multifunction drive 500 is mounted on the electrical switch 1000 and the actuators 110; 120 of the device 100 can actuate the handle 1100 of the electrical switch 1000's.
- the overall height D of the multifunction drive 500 can be designed in such a way that it is limited within typical control cabinet cutouts, for example 45mm (millimeters). This would allow no side motor drives to be needed.
- the multifunction drive 500 includes a drive button 550, when actuated, the actuators 110; 120 of the device 100 can be set in motion.
- the drive button 550 can be designed, for example, as a rotary drive button or as a button. If the drive knob 550 is designed as a rotary drive knob, it is decided by the rotational position of the drive knob 550 whether the first actuator 110 Ak, the second actuator 120 or none of the actuators 110; 120 is heated.
- FIG. 3B shows the multifunction drive 500 according to the invention, which is mounted on the electrical switch 1000.
- the multifunction drive 500 can serve, for example, as a motor drive that enables the handle 1100 to be shifted remotely.
- the multifunction drive 500 with a drive button 550 is again shown in FIG. Further drive buttons 550' and 550'' are also shown, which communicate with the multifunction drive 500 to switch the handle 1100.
- Drive button 550' is connected to the remainder of the multifunction drive 500 by means of an electrical connection, such as a cable.
- the drive knob 550' can be mounted on a control cabinet door or in a remote control room, for example.
- a mechanical connection would for example via a Bowden cable between the drive button 550 'and the multifunction drive 500 possible.
- the drive button 550'' is wirelessly connected to the rest of the multifunction drive 500, for example by means of the Bluetooth protocol.
- the drive button 550'' is also not mounted on the housing 510 of the multifunction drive 500, but can be mounted on a control cabinet, a control cabinet door or a remote control room, for example.
- FIG. 4 also shows an external device 200, which can also interact with the multifunction drive 500 to switch the handle 1100 of the electrical switch 1000.
- This external device 200 can be mechanically, electrically or wirelessly connected to the multifunction drive 500 and the actuators 110; 120 of the device 100 set in motion.
- the external device 200 can, for example, be a smartphone, a tablet computer, a notebook or another computer, in particular in a remote control room.
- the shape memory alloys of the actuators 110; 120 can be designed in such a way that when the multifunction drive 500 is mounted on the electrical switch 1000, the handle 1100 can be actuated in less than 50 msec (milliseconds).
- the handle 1100 is preferably actuated for between 10 msec and 20 msec.
- the device 100 according to the invention and the multifunction drive 500 according to the invention can realize large reserves of power and travel in a small space.
- Vulnerable constructions for example with a ratchet wheel on which today's motor drives and spring-loaded drives are based, can be eliminated by the multifunction drive according to the invention.
- the multifunctional antrieb 500 is quieter than previous motor drives or spring-loaded drives.
- the multifunction drive 500 according to the invention can be implemented in a very cost-effective design, since far fewer mechanical, electromechanical and electronic parts are required than in typical motor drives, spring-loaded drives or rotary drives. Manufacturing costs and development support costs are lower because of the lower cost, fewer component design, and ease of manufacture and assembly.
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- Mechanisms For Operating Contacts (AREA)
- Breakers (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180095091.XA CN116964706A (zh) | 2021-03-03 | 2021-03-03 | 用于切换电开关的手柄的装置和具有这种装置的多功能驱动装置 |
US18/548,966 US20240161991A1 (en) | 2021-03-03 | 2021-03-03 | Device for switching a handle of an electrical switch, and multi-function drive having a device of this type |
DE112021006550.5T DE112021006550A5 (de) | 2021-03-03 | 2021-03-03 | Vorrichtung zum schalten einer handhabe eines elektrischen schalters und multifunktionsantrieb mit solch einer vorrichtung |
PCT/EP2021/055399 WO2022184256A1 (de) | 2021-03-03 | 2021-03-03 | Vorrichtung zum schalten einer handhabe eines elektrischen schalters und multifunktionsantrieb mit solch einer vorrichtung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2021/055399 WO2022184256A1 (de) | 2021-03-03 | 2021-03-03 | Vorrichtung zum schalten einer handhabe eines elektrischen schalters und multifunktionsantrieb mit solch einer vorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022184256A1 true WO2022184256A1 (de) | 2022-09-09 |
Family
ID=74873706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2021/055399 WO2022184256A1 (de) | 2021-03-03 | 2021-03-03 | Vorrichtung zum schalten einer handhabe eines elektrischen schalters und multifunktionsantrieb mit solch einer vorrichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US20240161991A1 (de) |
CN (1) | CN116964706A (de) |
DE (1) | DE112021006550A5 (de) |
WO (1) | WO2022184256A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022124441A1 (de) | 2022-09-22 | 2024-03-28 | Jan Waldmann | Unterstützungsvorrichtung zur Unterstützung von Testverfahren für Schaltereinrichtungen |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0801411A2 (de) * | 1996-03-26 | 1997-10-15 | Structured Technology Corporation | Motormodul für in situ Montage auf Schutzschaltern |
WO2013017595A1 (en) * | 2011-08-01 | 2013-02-07 | Abb S.P.A. | Low voltage circuit breaker with a control device for re-closing said low voltage circuit breaker |
US20140117859A1 (en) * | 2012-10-26 | 2014-05-01 | Lutron Electronics Co., Inc. | Controllable light source |
EP3657524A1 (de) * | 2018-11-23 | 2020-05-27 | Schneider Electric Industries SAS | Elektrischer schalter und schaltanlage |
-
2021
- 2021-03-03 US US18/548,966 patent/US20240161991A1/en active Pending
- 2021-03-03 CN CN202180095091.XA patent/CN116964706A/zh active Pending
- 2021-03-03 DE DE112021006550.5T patent/DE112021006550A5/de active Pending
- 2021-03-03 WO PCT/EP2021/055399 patent/WO2022184256A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0801411A2 (de) * | 1996-03-26 | 1997-10-15 | Structured Technology Corporation | Motormodul für in situ Montage auf Schutzschaltern |
WO2013017595A1 (en) * | 2011-08-01 | 2013-02-07 | Abb S.P.A. | Low voltage circuit breaker with a control device for re-closing said low voltage circuit breaker |
US20140117859A1 (en) * | 2012-10-26 | 2014-05-01 | Lutron Electronics Co., Inc. | Controllable light source |
EP3657524A1 (de) * | 2018-11-23 | 2020-05-27 | Schneider Electric Industries SAS | Elektrischer schalter und schaltanlage |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022124441A1 (de) | 2022-09-22 | 2024-03-28 | Jan Waldmann | Unterstützungsvorrichtung zur Unterstützung von Testverfahren für Schaltereinrichtungen |
Also Published As
Publication number | Publication date |
---|---|
US20240161991A1 (en) | 2024-05-16 |
DE112021006550A5 (de) | 2023-10-26 |
CN116964706A (zh) | 2023-10-27 |
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