EP2846346B1 - Élément de blocage pour un commutateur électrique - Google Patents

Élément de blocage pour un commutateur électrique Download PDF

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Publication number
EP2846346B1
EP2846346B1 EP14156281.9A EP14156281A EP2846346B1 EP 2846346 B1 EP2846346 B1 EP 2846346B1 EP 14156281 A EP14156281 A EP 14156281A EP 2846346 B1 EP2846346 B1 EP 2846346B1
Authority
EP
European Patent Office
Prior art keywords
electrical switch
blocking
blocking element
rocker
handle
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
EP14156281.9A
Other languages
German (de)
English (en)
Other versions
EP2846346A2 (fr
EP2846346A3 (fr
Inventor
Thomas Bunk
Thomas Roman Abril
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP2846346A2 publication Critical patent/EP2846346A2/fr
Publication of EP2846346A3 publication Critical patent/EP2846346A3/fr
Application granted granted Critical
Publication of EP2846346B1 publication Critical patent/EP2846346B1/fr
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Anticipated expiration legal-status Critical

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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
    • H01H71/1054—Means for avoiding unauthorised release
    • 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
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • 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
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/285—Locking mechanisms incorporated in the switch assembly and operable by a key or a special tool
    • 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
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • H01H9/223—Defeatable locking means

Definitions

  • Switching devices for switching electric currents typically comprise at least one contact system and further housing conversions.
  • the contact system forms an electrical switch and serves to switch electrical currents.
  • One class of switching devices are the so-called power switches, which typically can switch currents of 100A and more.
  • These circuit breakers comprise a housing in which the individual phases of the currents are switched.
  • the individual phases of the currents can be housed in Polkassetten, which are enclosed by its own housing.
  • moving and fixed contact are housed, which can be mechanically separated or brought together, for switching off or turning on the currents.
  • an arc is formed, which is typically extinguished in a so-called quenching chamber.
  • circuit breakers are known which contain no Polkassetten and accommodate in their housing Bewegund fixed contacts.
  • the switching devices can be accommodated in addition to the switching mechanism, which can be manually operated, for example, with a handle.
  • the accessory is housed in pockets in the housing of the electrical switch.
  • the accessory is typically covered with an accessory cover to protect the accessory from unauthorized access.
  • the accessory lid itself is often designed so that when switched on this can not be removed from the housing of the electrical switch. For safety reasons, it should be prevented that the electrical switch is switched on when the accessory cover is open.
  • an electrical switch comprising a blocking means which, in a blocking position, prevents the triggering of the switch and the opening of the contacts.
  • the blocking element for blocking the movement of a handle or a shift lever of an electrical switch is switchable between at least two positions and in the first position, the blocking element can block the movement of the handle or the shift lever and in the second position the blocking element can not block the movement of the handle or the lever.
  • the advantage here is that the electrical switch can not be switched on manually with removed accessory cover. This is important to protect a surgeon and prevent misuse of the electrical switch.
  • the blocking element is a blocking rocker, which is mounted pivotably about a rotation axis D.
  • the blocking rocker may comprise a bearing, and this may be formed as a rotation axis D.
  • the blocking rocker may include a first contour configured to block the handle or the shift lever of an electrical switch.
  • the blocking rocker may comprise a second contour, which is designed to cooperate with a component of the electrical switch for pivoting the blocking rocker.
  • the second contour may be formed with a cover, in particular an accessory cover, an adapter plate or a drive, in particular a motor drive, a rotary drive or a door coupling drive, or to interact with another component of the electrical switch
  • FIG. 1 an electrical switch 100 is shown in a side sectional view.
  • the electrical switch 100 comprises a handle 180, which is in the illustration of Figure 1 in the off position.
  • the handle 180 is actuated along a circular path from an off position, which in the FIG. 1 corresponds to the right position, in an on position, which in the FIG. 1 would correspond to a left position.
  • the handle 180 comprises an extension 181 which can interact with a blocking element 200.
  • the blocking element 200 is designed as a blocking rocker.
  • the blocking rocker 200 is configured to block the movement of the handle 180 by being pivoted into the movement of the handle 180.
  • the blocking rocker 200 is pivotally mounted with its bearing 210 about a rotation axis D.
  • the blocking rocker 200 is pivotable between at least two positions. In its first position it blocks the movement of the handle 180 and in its second position it can not block the movement of the handle 180.
  • an accessory cover 150 is placed on the housing of the electrical switch 100. This closes the so-called accessory pockets, in which accessories can be installed in the electrical switch 100.
  • the accessory cover 150 ensures that the blocking rocker 200 is moved to the second position, in which it can not block the movement of the handle 180. This happens because, for example, a second contour 230 of the blocking rocker 200 cooperates with the accessory cover 150 of the electrical switch 100.
  • the electrical switch 100 can thus be reciprocated between its different positions without restriction.
  • the blocking rocker 200 may be formed substantially triangular with the first corner as a bearing 210, the second corner as a first contour 220 and the third corner as a second contour 230th
  • the blocking rocker 200 blocks in its first position the movement of the handle 180. This may be direct or also indirect. Furthermore, the blocking rocker 200 may block the shift lever of an electrical switch 100.
  • the electrical switch 100 may include a mechanism that prevents the accessory cover 150 from being removed in the on position of the electrical switch 100. This mechanism can thus ensure that the accessory cover can be removed only in the case of a handle 180 in the off position of the electric switch 100. Because, according to the representation of the FIG. 2 the accessory cover 150 no longer cooperates with the blocking rocker 200, the blocking rocker 200 is pivoted to the first position in which it can block the movement of the handle 180. The second contour 230 of the blocking rocker 200 does not interact with the accessory cover 150. This tilts according to the representation of FIG. 2 the blocking rocker 200 to the right about its axis of rotation D.
  • the angle of rotation of the blocking rocker 200 is denoted by ⁇ , for example. Characterized in that the blocking rocker has rotated 200 by the angle ⁇ in a clockwise direction, there is now a first contour 220 of the locking rocker 200 in the path of movement of the handle 180. This is in more detail in FIG. 3 explained.
  • FIG. 3 For example, the electrical switch 100 is shown and the handle 180 has been moved leftward toward the on position by an angle ⁇ .
  • the first contour 220 of the blocking rocker 200 now blocks the handle 180 so that it comes into mechanical contact with the extension 181.
  • This blocking position is preferably provided before the tilting point in the direction of the on position of the handle 180.
  • FIG. 4 the blocking rocker 200 is shown enlarged according to the position of the electrical switch in the FIG. 3 ,
  • the blocking rocker 200 is pivoted to the first position.
  • the first contour 220 of the blocking rocker 200 blocks the path of movement of the handle 180.
  • the extension 181 of the handle 180 abuts the first contour 220 of the blocking rocker, which prevents the handle can be moved further in the direction of the on position of the electrical switch.
  • this additionally comprises an elastic element 300, which may be formed for example as a spring or correspondingly shaped plastic.
  • the spring 300 causes the blocking rocker 200, if it does not cooperate with the accessory cover 150, is transferred to the first position. According to the representations in the FIGS. 1 to 4 This means that the spring 300 rotates the blocking rocker 200 in a clockwise direction. It can be provided that the blocking rocker 200 abuts against a stop, for example against an edge 190 in the housing cover of the electrical switch 100, and thus the movement of the blocking rocker 200 in the clockwise direction is limited.
  • FIG. 5 the electrical switch 100 is shown in a plan view of the electrical switch 100.
  • the handle 180 extends through the accessory cover 150.
  • the blocking rocker 200 is located within the housing of the electrical switch 100 and is in the illustration of FIG. 5 not visible.
  • FIG. 6 the electrical switch 100 is again shown in a plan view, with the accessory cover 150 removed.
  • the electrical switch 100 comprises a handle 180, which is in a blocking position by the interaction with the blocking rocker 200.
  • the blocking rocker 200 protrudes with its second contour 230 from the housing of the electrical Switch 100 out, so that this second contour 230 can cooperate with the accessory cover 150.
  • the blocking rocker 200 is located according to the FIG. 6 in its first position and thus the second contour 230 in its stop position.
  • the blocking rocker 200 is pivoted about the axis of rotation D by the angle ⁇ .
  • the second contour 230 may also cooperate with another component (150) of the electrical switch (100) as the accessory cover, for example with a cover, an adapter plate or a drive, in particular a motor drive, a rotary drive or a door coupling drive.
  • the kinematic and kinetic regulation of the blocking mechanism with the blocking element 200 is determined by the elastic element 300.
  • the sensitivity with respect to the dynamics is controllable.
  • the end of the rotational movement and thus the achievement of the blocking position of the blocking rocker 200 can be determined by a geometric design of the guide pocket. Due to the supporting force of the elastic element, the blocking element 200 is pressed against the edge 190 in the housing cover and held in position. The limitation of the movement can be solved analogously thereto via another boom or by another design feature.
  • the blocking element 200 Due to the lack of contact between the blocking element 200 and accessory cover 150, the blocking element 200 is rotated by the force of the elastic element 300 and transferred to the blocking position, its first position, and held there. If the operator moves the handle 180 in the direction of the on position, it is blocked in front of the latching point of the lock. In this case, the handle 180 meets the first contour 220 of the blocking rocker 200.
  • the lock of the electrical switch 100 is prevented from snapping around and thus prevents a contact contact of the electrical contacts of the electrical switch 100.
  • a conceivable embodiment is to place the blocking element 200 in the housing of a switch. Due to the gear ratio only a relatively small angle of rotation ⁇ for blocking the handle 180 and thus the switching mechanism is required. Due to the favorable positioning of the axis of rotation D of the blocking rocker 200, a closing moment is introduced to the blocking rocker 200 upon contact introduction of the handle 180 onto the first contour 220 of the blocking rocker 200 as a result of the contact force. Consequently, the mechanism is brought into self-locking and avoided a solution of the blockage.
  • the contact surface of the housing of the electrical switch 100 at the upper end of the blocking element 200 and the early stop position, for example in the upper housing part allow for easy Reseten the mechanics. This is made possible by the large lever arms of the contact force to the pivot point of the blocking element 200.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Lock And Its Accessories (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)

Claims (11)

  1. Commutateur électrique (100) comprenant une touche (180)
    et/ou un levier de commutation en vue de la commutation du commutateur électrique (100) et un élément de blocage (200), dans lequel l'élément de blocage (200) peut être commuté entre au moins deux positions, dans lequel l'élément de blocage (200) est disposé dans le commutateur électrique (100) de sorte que dans la première position de l'élément de blocage (200) le déplacement d'une touche (180) ou d'un levier de commutation du commutateur électrique (100) est bloqué et dans la deuxième position de l'élément de blocage (200) le déplacement de la touche (180) ou du levier de commutation n'est pas bloqué, caractérisé en ce que le commutateur électrique (100) comprend en outre un composant (150), dans lequel lors de l'installation du composant (150) celui-ci commute l'élément de blocage (200) dans la deuxième position et lors de l'enlèvement du composant (150) l'élément de blocage (200) est commuté dans la première position.
  2. Commutateur électrique (100) selon la revendication 1,
    dans lequel l'élément de blocage (200) est un bouton à bascule de blocage qui est monté de manière à pouvoir pivoter autour d'un axe de rotation (D).
  3. Commutateur électrique (100) selon la revendication 2,
    dans lequel le bouton à bascule de blocage (200) comprend un point d'appui (210) et celui-ci est configuré en tant qu'axe de rotation (D).
  4. Commutateur électrique (100) selon la revendication 2 ou
    3, dans lequel le bouton à bascule de blocage (200) comprend un premier contour (220) qui est configuré pour bloquer la touche (180) ou le levier de commutation d'un commutateur électrique (100).
  5. Commutateur électrique (100) selon l'une des revendications 2 à 4, dans lequel le bouton à bascule de blocage (200) comprend un deuxième contour (230) qui est configuré pour coopérer avec un composant du commutateur électrique (100) en vue de faire pivoter le bouton à bascule de blocage (200).
  6. Commutateur électrique (100) selon la revendication 5,
    dans lequel le deuxième contour (230) est configuré pour coopérer avec un couvercle, en particulier un couvercle à accessoires, une plaque d'adaptation ou un mécanisme d'entraînement, en particulier un mécanisme d'entraînement à moteur, un mécanisme d'entraînement à rotation ou un mécanisme d'entraînement à couplage de porte ou un autre composant du commutateur électrique (100).
  7. Commutateur électrique (100) selon l'une des revendications 2 à 6, dans lequel le bouton à bascule de blocage (200) est configuré essentiellement en forme de triangle avec le premier coin en tant que point d'appui (210), le deuxième coin en tant que premier contour (220) et le troisième coin en tant que deuxième contour (230).
  8. Commutateur électrique (100) selon l'une des revendications précédentes, dans lequel l'élément de blocage (200) est configuré pour être dans la deuxième position lorsqu'un composant du commutateur électrique (100) est installé.
  9. Commutateur électrique (100) selon l'une des revendications précédentes, dans lequel l'élément de blocage (200) comprend en outre un élément élastique (300) qui est destiné à faire passer l'élément de blocage (200) dans la première position.
  10. Commutateur électrique (100) selon la revendication 9,
    dans lequel l'élément élastique (300) est configuré en tant que ressort.
  11. Commutateur électrique (100) selon la revendication 10,
    dans lequel le composant (150) du commutateur électrique (100) est un couvercle, en particulier un couvercle à accessoires, une plaque d'adaptation ou un mécanisme d'entraînement, en particulier un mécanisme d'entraînement à moteur, un mécanisme d'entraînement à rotation ou un mécanisme d'entraînement à couplage de porte.
EP14156281.9A 2013-07-01 2014-02-24 Élément de blocage pour un commutateur électrique Active EP2846346B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013212798.7A DE102013212798A1 (de) 2013-07-01 2013-07-01 Blockierelement für einen elektrischen Schalter

Publications (3)

Publication Number Publication Date
EP2846346A2 EP2846346A2 (fr) 2015-03-11
EP2846346A3 EP2846346A3 (fr) 2015-09-30
EP2846346B1 true EP2846346B1 (fr) 2017-02-22

Family

ID=50156615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14156281.9A Active EP2846346B1 (fr) 2013-07-01 2014-02-24 Élément de blocage pour un commutateur électrique

Country Status (4)

Country Link
US (1) US9230767B2 (fr)
EP (1) EP2846346B1 (fr)
CN (1) CN104282461B (fr)
DE (1) DE102013212798A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9105415B2 (en) * 2013-04-22 2015-08-11 General Electric Company Retaining insert for an electrical protection system and method
RU2696600C1 (ru) * 2015-12-04 2019-08-05 Абб Швайц Аг Разъединительное устройство и механизм для разъединения контактора
US9859074B1 (en) 2017-09-03 2018-01-02 Carlos M. Martinez Locking device for rocker switch
CN112117167B (zh) * 2020-09-18 2023-05-05 广东电网有限责任公司梅州供电局 一种空气开关防误操作装置
CN117558593B (zh) * 2024-01-10 2024-03-15 深圳曼顿科技有限公司 断路器电动操作装置锁定结构及断路器电动操作装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2288270A (en) * 1941-08-22 1942-06-30 Westinghouse Electric & Mfg Co Circuit breaker
US2343548A (en) * 1942-08-08 1944-03-07 Ite Circuit Breaker Ltd Circuit breaker locking device
DE3033213C2 (de) * 1980-08-29 1982-10-21 Siemens AG, 1000 Berlin und 8000 München Niederspannungs-Schutzschalter mit einem Sperrhebel
DE8509653U1 (de) * 1985-03-30 1985-05-15 Braun Ag, 6000 Frankfurt Schalterverriegelung für ein Gerät mit einem Klappdeckel
FR2685124B1 (fr) * 1991-12-17 1994-03-18 Telemecanique Appareil interrupteur de protection tel que contacteur-disjoncteur.
DE4322215C2 (de) * 1993-07-03 1995-08-24 Kloeckner Moeller Gmbh Abschließbarer Drehantrieb für Leistungsschalter
DE29706429U1 (de) * 1997-04-10 1997-06-12 Siemens Ag Handbetätigter Schutzschalter
US8604367B2 (en) * 2007-05-10 2013-12-10 Schneider Electric USA, Inc. Circuit breaker with improved lock-off accessory
DE102010032035A1 (de) * 2010-07-19 2012-01-19 Siemens Aktiengesellschaft Leistungsschalter, insbesondere für Niederspannungen

Also Published As

Publication number Publication date
DE102013212798A1 (de) 2015-01-08
US9230767B2 (en) 2016-01-05
US20150001049A1 (en) 2015-01-01
CN104282461A (zh) 2015-01-14
EP2846346A2 (fr) 2015-03-11
EP2846346A3 (fr) 2015-09-30
CN104282461B (zh) 2018-03-30

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