WO2017021106A1 - Procédé d'indication d'un état de commutation d'un appareil de commutation électrique, et dispositif pour la mise en oeuvre de ce procédé - Google Patents

Procédé d'indication d'un état de commutation d'un appareil de commutation électrique, et dispositif pour la mise en oeuvre de ce procédé Download PDF

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Publication number
WO2017021106A1
WO2017021106A1 PCT/EP2016/066471 EP2016066471W WO2017021106A1 WO 2017021106 A1 WO2017021106 A1 WO 2017021106A1 EP 2016066471 W EP2016066471 W EP 2016066471W WO 2017021106 A1 WO2017021106 A1 WO 2017021106A1
Authority
WO
WIPO (PCT)
Prior art keywords
switching
state
contact piece
dead
switching contact
Prior art date
Application number
PCT/EP2016/066471
Other languages
German (de)
English (en)
Inventor
Roland MONKA
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2017021106A1 publication Critical patent/WO2017021106A1/fr

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Classifications

    • 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
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
    • 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
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • H01H1/385—Contact arrangements for high voltage gas blast circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
    • H01H2003/405—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing using a walking nut

Definitions

  • the invention relates to a method for reporting a switching state of an electrical switching device by means of a Mel ⁇ deluster, which maps the switching state.
  • An electrical switching device may for example have a first switching contact piece and a second switching contact piece, which are movable relative to each other.
  • it may also be a solid state switching device with an impedance variable component, eg. B. a varistor, a power semiconductor or similar erhern act.
  • An electrical switching device can beispielswei ⁇ se have a first and a second switching state, for example, a switch-on and a switch-off ⁇ state.
  • further switching states are permitted on the electrical switching device.
  • the electrical switching device can act at ⁇ play the manner of a changeover switch, so that there is, for example, an off state and two divergent turned-on.
  • the electrical switching device may also be a static switching device which Le ⁇ diglich by changing the impedance of a variable-impedance component changes a switching state.
  • a plurality of switching states can exist where an undefined / changing impedance value of the electrical switching device can be present during a transferring the state of a switching state into the other switching ⁇ .
  • the signaling device is a mechanical element which has relatively movable Mel ⁇ deessore, which controls the switching state of the electrical see map switching device.
  • the signaling device can also be designed as a static module.
  • ⁇ means of a signaling device, the respective switching state of the switching device can be imaged.
  • the signaling device can also during a transition of a switching state in another Druckzu ⁇ , for example, during an undefined state, this transition state also bring to the display. It is important that the image of the message device the actual state of the switching device or its
  • mapping z. B. a turn-on by a reporting device only then to complete when the switching contact pieces a secure relative position to each other, for. B. an end position, have taken.
  • a switching state to be mapped z. B. is an end position relative to ⁇ nander movable switch contact pieces.
  • An electrical switching device into another switching state to transfer for example by a Einschaltzu ⁇ stand in an off state or vice versa, a switching action of the electrical switching device needs to be triggered. It can be advantageously provided that elapses from a triggering of the switching operation to a onset of a switching operation, a time interval. That is, in ⁇ play as due to inertia, for. As the inertia of a mechanical system, although a movement initiated, but not yet lead to a relative movement of the switching contact pieces. In this case, it is necessary that the signaling device not yet makes a picture of a change in the switching state, but actually in dependence on the relative position of the switching contact pieces by an illustration the reporting device takes place.
  • a time interval may elapse.
  • the signaling device can start working to prepare a mapping of the change of the switching state and already with a start of the relative movement of the relatively movable Weg- pieces a correct mapping of the switching state of
  • Switching device namely, for example, leaving a si ⁇ safe end position of the relatively movable switching contact pieces and a temporary assumption of a transfer ⁇ position of the relatively movable Wegstü- bridge (transitional state) to display.
  • the signaling device can be given a time advantage, for example, to set up the signaling device, so that a reliable mapping of the switching state of the electrical
  • Switching device can be made.
  • the risk that, despite a pre-set relative movement of the relatively movable switching contact pieces of the electric switching device, and thus, for example, exiting a defined end position, continue to the end position defined is brought to the imaging by the signaling device, and only lagging the tatsumble ⁇ Liche state was of the electrical switching device has been imaged by the signaling device .
  • a time interval a decoupling of tripping and insertion of a switching action is undertaken, wherein the time interval can be used to clarify the signaling device.
  • the reporting device may be a computer system which remains in an idle state and is only subjected to a state change during a switching operation.
  • a wake-up routine can run, so that with Actual making a change in the switching state of this can also be displayed synchronously by the reporting device.
  • a further advantageous embodiment can provide that with the onset of the switching action, a synchronous image is output by the reporting device.
  • a synchronous image by a reporting device can be made, for example, such that an analogue mapping of the progress of the switching operation by the reporting device is made. However, it can also be provided that a digital mapping of the switching operation or the switching states takes place. Regardless of the type of illustration, the image should always represent the real state of the switching state of the electrical switching device. In particular, when the switching operation starts, that is to say when the switching path of the electrical switching device is actually inserted or changed, it may be due to a relative movement of switching contacts which are movable relative to one another or through a switching contact piece
  • Impedance change of a static switching element is an immediate change of the image by the reporting device with the onset of switching action necessary. For example, it can be provided that only in safe end positions a defined switching state is mapped, whereas with ei ⁇ nem beginning a change in the switching state, such as a transition state is displayed. With an exit ei ⁇ ner safe limit an undefined switching position (transition state) can be mapped by the signaling device advertising and with a secure reaching an end position of a
  • the message device can then also synchronously map this. If the switching operation is synchronous to
  • Switching state represented by the signaling device a correct mapping of the switching state (transition state) can also be given during a switching operation. This allows increased safety in the operation of an electrical switching device ⁇ be achieved.
  • a further advantageous embodiment of the method can provide that with complete implementation of the switching action, a synchronous image is output by the reporting device.
  • a dead-time element causes a delay in the completion of the switching operation.
  • a time interval can be dimensioned.
  • the deadtime can be effective at a time to wel ⁇ chem ensures that it unfolds before reaching a switching operation, ie until it reaches the switching state of the electrical switching device to be achieved its effect.
  • an earlier or later effective activation of the deadtime element can be provided.
  • the deadtime element can delay the onset of the switching action. gladly. By delaying the onset of the switching action, a termination of the switching action is simultaneously delayed. It is advantageous in a use of the dead time Glie ⁇ before an onset of the switching action that the switching action in order to allow an action of the deadtime element, need not be interrupted. In a previously laid Festge ⁇ time interval may be waiting for insertion of the switch handle ⁇ development to make a corresponding delayed from ⁇ execution of the switching action. Within this time interval, which can be generated by the idle timer , the signaling device can be made operationally clear so that delays in the mapping of the switching state by the signaling device do not occur.
  • a further advantageous embodiment may provide that an electrical switching device has a first switching contact piece and a second switching contact piece, wherein the switching contact pieces are movable relative to each other, wherein a drive means for effecting a switching action and further comprises a signaling device for mapping the switching state is provided.
  • the local electrical switching device is designed as a disconnecting earthing switch for a metal-enclosed gas-insulated Hochhardsschaltan ⁇ location. Usually, such separation grounding ⁇ switch with a signaling device for imaging a
  • the object is achieved in that the on ⁇ driving device has a dead time element for synchronizing the relative movement with the reporting device.
  • the drive device is a movement on at least one of the relatively movable switching contact pieces coupled, so that a switching state change can be brought about by a switching operation.
  • a dead-time member By means of a dead-time member, a synchronization of a signaling device can be made to a relative movement of the switching contact pieces.
  • a time interval can be provided by means of the dead time ⁇ member, which already takes place in ⁇ nergur triggering of the switching action, however, a start of a switching operation has not yet entered once.
  • An occurrence of a switching action is generally assumed when a relative movement between the switching contact pieces or an impedance change occurs. Triggering is present, for example, with an onset of operation of the drive device, ie, with a delivery of a drive movement by the drive device.
  • the dead-time member of the drive device delays transferring the drive movement of the drive device to at least one of the relatively movable switching contact pieces.
  • the drive device may have a transmission which can be used for reducing or translating movements.
  • the drive device may have a storage spring, which can be discharged to move the relatively movable switching contact pieces, so that the stored Fe ⁇ der umanenergie in kinetic energy, for example ei ⁇ nes the switching contact pieces, can be implemented. Via a transmission, the output of the energy stored in the storage spring can be controlled.
  • the dead time member is part of a transmission of the drive device.
  • the transmission may be equipped with a dead-time member, so that a transmission of a movement between the transmission input and transmission output takes place at least temporarily delayed. For example, this delay may occur before the beginning of a
  • An advantageous embodiment may provide that by means of the dead time member, a position assurance of a relative position of the switching contact pieces.
  • the dead time can also be ge ⁇ uses to secure relative positions of the switching contact pieces to each other.
  • end positions can be secured, for example, by means of the deadtime element.
  • the dead time ⁇ member for example, in an end position block the gear ⁇ ren, for example by a distortion or jamming of the deadtime element takes place.
  • a position assurance of different relative positions can be carried out by the deadtime element.
  • a reporting of switching states by the reporting device can be done, for example, after a successful location.
  • the deadtime member is a freewheel. By means of a freewheel to the delegation ⁇ supply of a movement can be delayed in a simple manner.
  • a free-wheel for example a rotational or linear movement, wel ⁇ che is coupled into the transmission neutralize bes within the gearbox, so that only with a depletion of the
  • a freewheel whose freedom is interrupted and a movement can be transmitted over the blocked freewheel away.
  • a freewheel may for example have a Spielpas ⁇ solution , with an interpretation of the game of fit determines the freedom.
  • the Tot ⁇ timer is a one-way freewheel.
  • a one-way freewheel allows free movement only in ei ⁇ ne movement direction, whereas in a reversal of the direction of movement, an immediate transfer of the movement takes place.
  • the deadtime element only act in one direction of change of the switching state (forward movement), in the reverse direction of movement (return movement), for example, a direct transfer of movement via the deadtime member is possible.
  • a further advantageous embodiment may provide that the deadtime member is a multipath freewheel.
  • the idle time element in different transmission directions (eg, forward movement and return movement), the idle time element also has different transmission properties, eg. B. causes different lengths of time intervals interrupting the transmission of a movement.
  • the deadtime member has a thrust element which is axially displaceable.
  • a thrust element can for example be axially displaceable, wherein by means of the thrust element, the z. B. is displaceably mounted within a recess, a dead time member is ge ⁇ forms.
  • the thrust element can, for example, interact with other transmission elements on the front side, wherein the transmission behavior (variation of the clearance) of the dead time element can be adjusted by changing a free movement of the thrust element.
  • the thrust element can be displaced between stops of a sleeve.
  • a displacement of the thrust element between stops has the advantage that it can be retained on previous designs.
  • a deadtime element can thus be integrated, for example, in a drive rod.
  • Game can be a shorter or longer delay of a movement ⁇ movement done by the deadtime member.
  • the thrust element is encompassed by one of the switching contact pieces at least partially.
  • An arrangement of the thrust element in the immediate vicinity of the switching contact piece allows to delay movements directly on the switching contact piece or to initiate the switching contact piece. As a result, it is possible to hold on to existing transmissions, whereby a corresponding adaptation would have to be made only in the area of the switching contact piece.
  • the switching contact piece can mechanically protect the push element and, for example, also guide and guide it. ken, whereby a buckling and bulging of the thrust element is counteracted.
  • At least one of the stops can be fixed to a stationary counter bearing by means of the thrust element.
  • the thrust element can clamp for example via a stop the sleeve against a stationary abutment.
  • a switching contact piece can act as sleeve. This allows the sleeve and thus the switching contact piece beispielswei ⁇ se in an end position, z. B. a switch-on, a switch-off position or a neutral position are fixed. Accordingly, by the dead time member for a time ⁇ Lich delaying a switching movement can be made, on the other hand, the deadtime member can also be used to secure the position.
  • FIG. 1 shows an encapsulating housing 1, which has a first switching contact piece 2 and a second switching contact piece 3.
  • the first switching contact piece 2 and the second switching contact piece 3 are arranged in the interior of the encapsulating housing 1.
  • the two switching contact pieces 2, 3 are shown in FIG. 1 in an off state (a first switching state).
  • the encapsulating housing 1 may be formed as a fluid-tight encapsulating housing 1, so that the interior of the encapsulating housing 1 may be filled with an electrically insulating fluid, which is prevented from volatilizing.
  • the encapsulating housing 1 is designed as a so-called cross-shaped module, wherein an electrically conductive base body has a first flange 4, a second flange 5, a third flange 6 and a fourth flange 7.
  • the electrically conductive body carries ground potential.
  • the first flange 4 so ⁇ as the second flange 5 are respectively fluid-tightly closed by electrically iso- lating disc insulators. 8
  • the third and fourth flanges 6, 7 are each closed by hood-shaped closure caps 9, 10.
  • the electrically insulating disk insulators 8 are penetrated by a first or a second phase conductor 11, 12.
  • the phase conductors 11, 12 are fluid-tightly inserted into the elekt ⁇ driven insulating disk insulators 8 and held by them.
  • the main axes of the two phase conductors 11, 12 are substantially perpendicular to one another and are aligned with the flange openings of the first flange 4 or the second flange 5.
  • the third flange 6 is closed in a fluid-tight manner with a hood-shaped closure cap 9.
  • the fourth flange 7 is provided with a hood-shaped closure cap 10 sealed fluid-tight, wherein the hood-shaped cap 10 has a rotary seal 13.
  • the rotary seal 13 is penetrated by a rotatable drive rod 14.
  • the rotatable drive rod 14 is fluid-tightly inserted into the rotary seal 13, so that the rotatable drive rod 14 extends both within the encapsulating housing and outside the encapsulating housing and a fluid-tight barrier on the encapsulating housing
  • the interior of the encapsulating housing 1 is filled with an electrically insulating fluid and flows around all located in the interior of the encapsulating housing compo ⁇ pen.
  • the encapsulating housing 1 is a pressure vessel out ⁇ leads.
  • the outside of the encapsulating housing 1 Ab ⁇ section of the drive rod 14 is connected to a Feder acknowledgedan- drive 15.
  • the drive rod 14 au ⁇ ßergur of the encapsulating housing 1 also connected to a Meldeeinrich ⁇ tung sixteenth
  • the signaling device 16 picks up a movement of the rotatable drive rod 14.
  • At the free end of the first phase conductor 11 is the first
  • the first switching contact piece 2 is stationary
  • Switching contact 2 executed. Inside the socket opening of the first switching contact piece 2, a first stop 17 is arranged.
  • the first switching contact piece 2 has flexible deformable contact fingers in order to limit the socket opening, so that an elastic contact with the second switching contact piece 3 is possible.
  • the second switching contact piece 3 is supported by the second phase conductor 12.
  • the second phase conductor 12 a contact socket 18, which has a coaxial with the socket opening of the first switching contact piece 2 opposite socket opening.
  • the second switching contact piece 3 is displaceable stored.
  • the second switching contact piece 3 has for this purpose a bolt shape which is hollow, wherein the bolt ⁇ longitudinal axis is aligned coaxially to the axis of rotation of the drive rod 14 ⁇ .
  • the drive rod 14 projects at least partially into the second switching contact piece 3.
  • a thrust element 19 is placed on the drive rod 14.
  • the thrust element 19 acts as a spindle of the table Spindelan- drive, wherein the drive rod 14 is guided as a drive spindle ⁇ .
  • the bottom of the contact socket 18 forms a second stop 20.
  • the first stop 17 and the second stop 20 are each fixed abutment, wherein the second switching ⁇ contact piece 3 between these two stationary stops 17, 20 is axially displaceable.
  • the contact socket 18 represents a sliding contact arrangement for the electrical contacting of the second switching contact piece 3 with the second phase conductor 12. The further construction and a switching operation will be described below with reference to FIGS. 2, 3 and 4.
  • 2 is a turn-(second GmbHzu ⁇ stand) is shown the electrical switching device.
  • the second switching contact piece 3 is retracted into the first switching contact piece 2 and abuts with a first end face against the fixed first stop 17.
  • the fixed first abutment 17 is inserted into the socket sets ⁇ opening of the first switching contact piece 2 and has the shape of a ring which is technologicalman- tel mineral with the female contact of the first contact piece 2 is in contact.
  • the drive rod 14 is designed as a threaded rod at least in the area in which the second switching contact piece 3 is to be moved.
  • the drive rod 14 has a corresponding external thread, which is form-fitting. plementarily engages in a recess of the thrust element 19.
  • the thrust element 19 may for example be a hollow cylinder, which is guided axially displaceably secured within the second switching contact piece 3 in a manner secured against rotation. Suitable materials for the pusher 19 are, for example metals, but also plastics or other suitable resistant materials. Inner sheath side, the thrust element 19 is provided with an external thread of the drive rod 14 formkomplementä ⁇ ren internal thread. Internal thread and external thread interlock.
  • the thrust element 19 which acts as a deadtime member, first suspends a lock of the second switching contact piece 3 and first performs a free stroke until the thrust element 19 with its end remote from the first switching contact piece 2 end to a stop of the second Switching contact piece 3 abuts and a movement of the push ⁇ rod 14 in a sliding movement of the second switching ⁇ contact piece 3 converts.
  • a movement in particular of the thrust element 19 and the drive rod, which is carried out from the triggering of a switching operation up to the onset of a switching operation.
  • ge time interval can be made shorter or longer.
  • the spring drive 15, the drive rod 14 and the thrust element 19 are parts of a transmission of a drive device which a
  • the second switching contact 3 is in accordance with Fi gur ⁇ 4 in an undefined state that is neither in a turn-yet they are still held in an off state in a defi ned ⁇ neutral state. Now there is a transition state.
  • the second switching contact piece 3 is further moved out ⁇ from the Figure 4 in the direction of the stationary second stop twentieth 1 shows an OFF state is switched (first switching state) shown in which the thrust element is pressed 19 with the interposition of the second switch contact ⁇ piece 3 against the stationary second stop twentieth Ie. the second switching contact piece 3 is kept defined in its off position. Now, the second switching contact piece 3 has a defined state and the switching action is completed. In the opposite case, by changing the direction of rotation of the rotary motion of the drive Rod 14 is a switch-on, starting from the Ausschaltzu ⁇ stand in the figure 1 on the figure 4, the figure 3 are caused to a switch-on state of Figure 2.
  • the deadtime element becomes active at the beginning of the switching action, ie a time interval elapses between the triggering of the switching action and the onset of the switching action.
  • a time interval is given both when switching on and off, to set the annunciator 16 operational clear.
  • the signaling device 16 is arranged outside the encapsulating housing 1 and grips the movement of the drive rod 14 outside of the encapsulating housing 1. During a dead time of the effect ⁇ becoming (time interval) is a rotary movement already covered by the notification means 16, a relationship ⁇ information on the signaling device 16 is supplied. It is already during the lapse of the time interval between a triggering of the switching operation of the electrical switching device and an insertion of a

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  • Switch Cases, Indication, And Locking (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

L'invention concerne un procédé d'indication d'un état de commutation d'un appareillage de commutation électrique au moyen d'un dispositif indicateur (16) qui fournit une représentation visuelle d'un état de commutation. Selon ce procédé, une opération de commutation de l'appareillage de commutation électrique est activée. Entre l'activation et la mise en oeuvre d'une opération de commutation s'écoule un intervalle de temps pendant lequel le dispositif indicateur (16) effectue une opération en vue de la représentation visuelle de l'état de commutation cible. Un appareillage de commutation électrique comprenant une première pièce de contact (2) et une seconde pièce de contact (3), est pourvu d'un dispositif d'actionnement comportant un élément à retard.
PCT/EP2016/066471 2015-08-06 2016-07-12 Procédé d'indication d'un état de commutation d'un appareil de commutation électrique, et dispositif pour la mise en oeuvre de ce procédé WO2017021106A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015215028.3A DE102015215028A1 (de) 2015-08-06 2015-08-06 Verfahren zum Melden eines Schaltzustandes eines elektrischen Schaltgerätes sowie Vorrichtung zur Durchführung des Verfahrens
DE102015215028.3 2015-08-06

Publications (1)

Publication Number Publication Date
WO2017021106A1 true WO2017021106A1 (fr) 2017-02-09

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WO (1) WO2017021106A1 (fr)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
WO2021052053A1 (fr) * 2019-09-18 2021-03-25 国网浙江省电力有限公司经济技术研究院 Appareil à ensemble complet à point neutre enfermé dans un métal à isolation gazeuse
CN112729098A (zh) * 2020-12-02 2021-04-30 桂林理工大学 一种低功耗铁路无缝线路爬行监测装置及方法
CN113488346A (zh) * 2021-06-29 2021-10-08 歌尔科技有限公司 开关组件、眼镜腿以及眼镜
CN113966541A (zh) * 2019-06-21 2022-01-21 Abb瑞士股份有限公司 三位置隔离开关

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DE19605974A1 (de) * 1996-02-06 1997-08-07 Kloeckner Moeller Gmbh Elektronische Schaltmagnetansteuerung zum Einschalten und Halten eines Schützes
DE19632574A1 (de) 1996-08-13 1998-02-19 Abb Patent Gmbh Trenn-Erderschalter für eine metallgekapselte, gasisolierte Hochspannungsschaltanlage
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EP1895556A1 (fr) * 2006-09-02 2008-03-05 ABB Technology AG Unité d'entraînement
EP2551886A1 (fr) * 2011-07-28 2013-01-30 ABB Technology AG Commutateur avec organe de commutation actionné par onde flexible

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113966541A (zh) * 2019-06-21 2022-01-21 Abb瑞士股份有限公司 三位置隔离开关
WO2021052053A1 (fr) * 2019-09-18 2021-03-25 国网浙江省电力有限公司经济技术研究院 Appareil à ensemble complet à point neutre enfermé dans un métal à isolation gazeuse
CN112729098A (zh) * 2020-12-02 2021-04-30 桂林理工大学 一种低功耗铁路无缝线路爬行监测装置及方法
CN112729098B (zh) * 2020-12-02 2023-10-10 桂林理工大学 一种低功耗铁路无缝线路爬行监测装置及方法
CN113488346A (zh) * 2021-06-29 2021-10-08 歌尔科技有限公司 开关组件、眼镜腿以及眼镜
CN113488346B (zh) * 2021-06-29 2024-03-08 歌尔科技有限公司 开关组件、眼镜腿以及眼镜

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