EP2246870B1 - Mechanische Riegeleinheit für eine Hauptantriebseinheit - Google Patents

Mechanische Riegeleinheit für eine Hauptantriebseinheit Download PDF

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Publication number
EP2246870B1
EP2246870B1 EP09005973A EP09005973A EP2246870B1 EP 2246870 B1 EP2246870 B1 EP 2246870B1 EP 09005973 A EP09005973 A EP 09005973A EP 09005973 A EP09005973 A EP 09005973A EP 2246870 B1 EP2246870 B1 EP 2246870B1
Authority
EP
European Patent Office
Prior art keywords
link
joint
housing
main
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP09005973A
Other languages
English (en)
French (fr)
Other versions
EP2246870A1 (de
Inventor
Anke Hackbarth
Christoph Budde
Günther Dipl.-Phys. Mechler
Ryan Dr. Chladny
Sebastian Breisch
Sven Dr.-Ing. Soetebier
Daniel Staffas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Technology AG
Original Assignee
ABB Technology AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ABB Technology AG filed Critical ABB Technology AG
Priority to EP09005973A priority Critical patent/EP2246870B1/de
Priority to AT09005973T priority patent/ATE526675T1/de
Priority to PCT/EP2010/002142 priority patent/WO2010124782A1/en
Priority to KR1020117025702A priority patent/KR20120012461A/ko
Priority to CN201080019978.2A priority patent/CN102422375B/zh
Publication of EP2246870A1 publication Critical patent/EP2246870A1/de
Application granted granted Critical
Publication of EP2246870B1 publication Critical patent/EP2246870B1/de
Active legal-status Critical Current
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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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • H01H2071/506—Latching devices between operating and release mechanism using balls or rollers in the latching device
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/505—Latching devices between operating and release mechanism
    • H01H2071/508—Latching devices between operating and release mechanism with serial latches, e.g. primary latch latched by secondary latch for requiring a smaller trip force
    • 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
    • H01H9/20—Interlocking, locking, or latching mechanisms

Definitions

  • the invention relates to a mechanical latch unit for a main drive unit.
  • a mechanical latch unit is used to lock/release a mechanical system especially a mechanism formed by links and joints in a defined position or operating stage.
  • a typical application of latch units can be found in electromechanical main drive units for contact systems of electric circuit breakers.
  • Technical areas are low voltage, medium voltage and high voltage. Requirements for these latch units especially in the mentioned application areas are:
  • US 2008/271982 A1 discloses a mechanical latch unit according to the preamble of claim 1.
  • Figure 1 shows a side view of a latch unit (sectional view).
  • the main components of the latch unit 1 are:
  • a traction link 121 of a main drive unit 120 (especially an electromechanical drive unit for contact system of electrical circuit breaker) pushes towards the catch main roller 30, see pivot centre 122 of this traction link 121 and direction arrow F which shows the load F respectively the force of the traction link 121 of the main drive unit 120 carried out in direction to the main bearing 25.
  • Fig. 1 shows the neutral position of the latch unit 1 whereby rotation of traction link 121 is blocked by the permanently coupled four bar latch mechanism (together with the catch main roller 30 and releasable locking unit).
  • the latch unit 1 is prepared for the next operation sequence, for instance the following desired switching breaking process.
  • Figure 2 shows a three-dimensional view of an opened latch unit 1. It is shown that the housing plate 10, the main lever 20 and both release links 40, 50 too consist of several sheet metal components, see for instance two sheet metal components 11, 12 of a housing plate 10.
  • the two external interface bolts 110, 111 and the end stop bolt 70 are essential constructional components of the housing 9.
  • Further main bearing 25 with axle 26, catch main roller 30 (movable lateral loosely coupled by slots 13), joints 35, 45 and bearing 55 are shown as well as integration block 90, actuator unit 100 with actuator coil 101, swivel anchor 102 and a part of the actuator trip lever 60.
  • Figure 3 shows a three-dimensional view of the latch unit 1. Unlike Figure 2 this Figure 3 shows a closed housing 9 with both housing plates 10 (consisting of sheet metal components 11, 12). Further the external interface bolts 110, 111, the end stop bolt 70, the main lever 20 with the axle 26, and the catch main roller 30 are shown as well as a slot 13, the release links 40, 50, the integration block 90, the actuator unit 100 with the actuator coil 101 and the swivel anchor 102.
  • Figure 4 shows in a side view the frontal area of the latch unit 1.
  • the housing 9 with the housing plates 10, the external interface bolts 110, 111 and the end stop bolt 70 are shown as well as the main lever 20 with the axle 26 and the catch main roller 30, the release links 40, 50 with the joints 35, 45 and the bearing 55 just as the actuator unit 100 with the actuator coil 101, the swivel anchor 102 and the actuator trip lever 60.
  • Figure 5 shows the relevant links and joints respectively the permanently coupled four bar latch mechanism of the latch unit 1 with
  • the actuator trip lever 60 serves (together with the swivel anchor 102) as trip unit for the permanently coupled four bar latch mechanism, whereby the swivel anchor 102 is applied to the first end of the actuator trip lever 60, the pivot centre is designed as trip lever bearing 91 and the second end interacts as releasable locking unit with the first end of the release link 50.
  • Figure 6 shows the relevant links and joints of the latch unit in the form of a line drawing. Again the relevant components of the permanently coupled four bar latch mechanism of the latch unit 1 are shown:
  • the load respectively force F carried out to the catch main roller 30 by the traction link 121 of the main drive unit 120 with the pivot centre 122.
  • the described design allows fulfilling tough performance requirements based on a permanently coupled four bar latch mechanism: 25 - 20 - 35 - 40 - 45 - 50 - 55.
  • State of the art latch designs typically use a mixture of only temporary and permanently coupled subsystems which are hard to set and reset in a defined repeatable initial condition after one operation sequence.
  • the permanent coupling of the described four bar latch mechanism instead allows not only for repeatable initial conditions but also for repeatable operation sequence. This is because the four bar latch mechanism constrains each part and its dynamics during the operation at any time.
  • the performance versus cost ratio of the four bar design can be easily scaled so the joint units can either be realized with roller or less costly friction bearings. Therefore for applications where the performance requirements in reaction time can be reduced or higher peak load or overload conditions can be expected cheaper but more robust friction bearings can be used.
  • standard pins and bolts can be used which integrate high precision and material quality at comparable low cost.
  • sheet metal combinations can be used.
  • the sheet metal components can be produced by stamping (fine blanking), laser cutting or other energy beam technology based manufacturing methods.
  • the sheet metal design has several advantages:
  • the sheet metal layers are combined by screwing, riveting, gluing, stamping, welding especially spot welding, friction stir welding, brazing, stamping or a combination of these methods.
  • housing 9 and link components can be casted or machined (cutted).
  • the housing design can be realized by use of sheet metal concept also.
  • the housing 9 comprises two main parts (housing plates 10), a left and a right housing unit which are fixed and positioned by screws and support sleeves.
  • the support sleeves are connected with screws to the interface of the main drive unit 120 - see the external interface bolts 110, 111.
  • the housing 9 can be made out of one single part in case the number of parts needs to be further minimized.
  • the four bar latch mechanism in the described latch design can be set in a highly repeatable initial condition by only one pin or bolt - see end stop bolt 70 - which limits the mobility of the mechanism in one direction so that the mechanism can rest in this position. This special position is defined the initial position.
  • the four bar latch mechanism ideally will be placed close to singular position where three joints - 35, 45, 55 - are laying in one line because the holding force of the releasable locking unit F N required from the tripping actuator unit 100 will be a minimum.
  • the mechanism will be placed close to the singularity and not in or beyond the singularity by adjusting the bolt position and to guarantee for the required performance.
  • the pin can be designed as an eccentric pin which enables a tuning functionality and to compensate the effect of manufacturing tolerances. Summing up these features ensure ability for tuning and highly repeatable initial conditions.
  • the mechanism is reset by spring force applied to one or more mechanism link components.
  • one or more springs tension, compression, torsion or complex geometry springs
  • one spring - see spring 80 - will act on the main lever 20 and another - see spring 61 - on the trip lever 60.
  • the trip lever 60 will be driven by the trip actuator unit 100 for the release operation but reset by the spring 61 to catch the four bar latch mechanism in the initial position.
  • the contact main roller 30 catches load and distributes it within main lever 20 which is made out of sheet metal layers.
  • the main portion of the load is directly transferred into the housing 9 via the main lever 20 (also called catch link) and the main bearing 25.
  • an additional load sleeve can be introduced between main lever 20 and main bearing 25.
  • the main bearing 25 transfers the load via a standard precision parallel bolt forming the main axles into the housing 9. Throughout the whole linkage chain either roller bearings or friction sleeve bearings can be introduced.
  • the integration block 90 which can also be made from sheet metal layers, integrates joint axles and interfaces of several parts in one single part saves parts and reduces tuning effort during assembly due to functional integration.
  • sheet metal layers it can be also made from bended and formed sheet metal parts, machine cutted part or a casted part.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Lock And Its Accessories (AREA)
  • Transmission Devices (AREA)

Claims (7)

  1. Mechanische Riegeleinheit (1) für eine Hauptantriebseinheit (120) mit einem permanent gekoppelten viergliedrigen Riegelmechanismus in einem Gehäuse (9),
    - mit einem ersten Lenker (20) mit einem unteren Ende, das über ein erstes Gelenk (25) mit dem Gehäuse (9) verbunden ist, und einem oberen Ende, das über ein zweites Gelenk (35) mit dem ersten Ende eines zweiten Lenkers (40) verbunden ist,
    - mit einem dritten Gelenk (45), um das zweite Ende des zweiten Lenkers (40) mit dem zweiten Ende eines dritten Lenkers (50) zu verbinden,
    - wobei das erste Ende des dritten Lenkers (50) mit einer Auslöseeinheit Verbindung aufnimmt und ein Drehzentrum des dritten Lenkers (50) über ein viertes Gelenk (55) mit dem Gehäuse (9) verbunden ist,
    - wobei das zweite Gelenk (35), das dritte Gelenk (45) und das vierte Gelenk (55) während des Verriegelungszustands ungefähr in einer Linie liegen, dadurch gekennzeichnet, dass
    - das obere Ende des ersten Lenkers (20) neben dem zweiten Gelenk (35) mit der Last (F) des Zuglenkers (121) der Hauptantriebseinheit (120) beaufschlagt wird, mit einer definierten Abweichung (d1) rechtwinklig zu dieser Linie in der Richtung des ersten Gelenks (25).
  2. Mechanische Riegeleinheit nach Anspruch 1, dadurch gekennzeichnet, dass zwischen dem Zuglenker (121) der Hauptantriebseinheit (120) und dem oberen Ende des ersten Lenkers (20) eine Arretierhauptrolle (30) eingeführt ist.
  3. Mechanische Riegeleinheit nach Anspruch 2, dadurch gekennzeichnet, dass die Arretierhauptrolle (30) durch in den Gehäuseplatten (10) implementierte Schlitze (13) geführt/lose gekoppelt ist.
  4. Mechanische Riegeleinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Endanschlagbolzen (70) die Bewegungsfreiheit des dritten Lenkers (50) begrenzt und ein Anschlag für eine neutrale Position ist.
  5. Mechanische Riegeleinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Verriegelungsriegel (62) am zweiten Ende eines Stellgliedauslösehebels (60) einen Verriegelungsriegel (51) am ersten Ende des dritten Lenkers (50) verriegelt.
  6. Mechanische Riegeleinheit nach Anspruch 5, dadurch gekennzeichnet, dass eine Auslösehebelrückstellfeder (61) den Stellgliedauslösehebel (60) in eine neutrale Position schiebt.
  7. Mechanische Riegeleinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Haupthebelrückstellfeder (80) den ersten Lenker (20) in eine neutrale Position schiebt.
EP09005973A 2009-04-30 2009-04-30 Mechanische Riegeleinheit für eine Hauptantriebseinheit Active EP2246870B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP09005973A EP2246870B1 (de) 2009-04-30 2009-04-30 Mechanische Riegeleinheit für eine Hauptantriebseinheit
AT09005973T ATE526675T1 (de) 2009-04-30 2009-04-30 Mechanische riegeleinheit für eine hauptantriebseinheit
PCT/EP2010/002142 WO2010124782A1 (en) 2009-04-30 2010-04-03 Mechanical latch unit for a main drive unit
KR1020117025702A KR20120012461A (ko) 2009-04-30 2010-04-03 주 구동부용 기계식 래치 장치
CN201080019978.2A CN102422375B (zh) 2009-04-30 2010-04-03 用于主驱动装置的机械闭锁装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09005973A EP2246870B1 (de) 2009-04-30 2009-04-30 Mechanische Riegeleinheit für eine Hauptantriebseinheit

Publications (2)

Publication Number Publication Date
EP2246870A1 EP2246870A1 (de) 2010-11-03
EP2246870B1 true EP2246870B1 (de) 2011-09-28

Family

ID=41058538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09005973A Active EP2246870B1 (de) 2009-04-30 2009-04-30 Mechanische Riegeleinheit für eine Hauptantriebseinheit

Country Status (5)

Country Link
EP (1) EP2246870B1 (de)
KR (1) KR20120012461A (de)
CN (1) CN102422375B (de)
AT (1) ATE526675T1 (de)
WO (1) WO2010124782A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2472550B1 (de) * 2010-12-29 2013-07-17 ABB Technology AG Verriegelungsvorrichtung und Betriebsmechanismus mit einer solchen Verriegelungsvorrichtung
WO2017186562A1 (de) * 2016-04-26 2017-11-02 Lts Lohmann Therapie-Systeme Ag Vorrichtung und verfahren zum spenden wirkstoffhaltiger oder wirkstofftragender streifen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344054A (en) * 1981-03-04 1982-08-10 General Electric Company Latch assembly for static trip circuit breakers
US7019229B1 (en) * 2004-09-03 2006-03-28 Eaton Corporation Door interlock assembly and draw-out circuit breaker assembly employing the same
US7459650B2 (en) * 2007-04-19 2008-12-02 Eaton Corporation Electrical switching apparatus, and latch assembly and latch engagement control mechanism therefor
US7598467B2 (en) * 2007-05-04 2009-10-06 Eaton Corporation Electrical switching apparatus having a cradle with combined pivot and over-toggle reversing pin
CN201210469Y (zh) * 2008-06-05 2009-03-18 浙江正泰电器股份有限公司 断路器辅助脱扣机构

Also Published As

Publication number Publication date
EP2246870A1 (de) 2010-11-03
CN102422375B (zh) 2014-09-10
ATE526675T1 (de) 2011-10-15
WO2010124782A1 (en) 2010-11-04
CN102422375A (zh) 2012-04-18
KR20120012461A (ko) 2012-02-10
WO2010124782A8 (en) 2011-01-13

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