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EP3459145B1 - Adaptateur électrique de voyage sûr - Google Patents

Adaptateur électrique de voyage sûr Download PDF

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Publication number
EP3459145B1
EP3459145B1 EP17730379.9A EP17730379A EP3459145B1 EP 3459145 B1 EP3459145 B1 EP 3459145B1 EP 17730379 A EP17730379 A EP 17730379A EP 3459145 B1 EP3459145 B1 EP 3459145B1
Authority
EP
European Patent Office
Prior art keywords
plug
locking
travel
housing
slide
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
EP17730379.9A
Other languages
German (de)
English (en)
Other versions
EP3459145A1 (fr
Inventor
Richard Albert Norman
Bruce Stanley John Hutchison
Alasdair Max Paul Barnett
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.)
Travel Blue Ltd
Original Assignee
Travel Blue Ltd
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
Priority claimed from EP16196657.7A external-priority patent/EP3316419A1/fr
Application filed by Travel Blue Ltd filed Critical Travel Blue Ltd
Publication of EP3459145A1 publication Critical patent/EP3459145A1/fr
Application granted granted Critical
Publication of EP3459145B1 publication Critical patent/EP3459145B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/66—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • H01R24/68—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall mounted on directly pluggable apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts

Definitions

  • the present invention relates to a travel plug adapter, which is also referred to herein as a travel plug for short.
  • a travel plug adapter With the help of such an adapter, power plugs of a certain (domestic) standard can be plugged into the sockets available at the travel destination.
  • the travel plug adapter requires a plug receptacle of the first standard and a power plug of a different standard.
  • it is more specifically about travel plug adapters that allow plugging into sockets of at least a first and a second standard.
  • power plugs of a first and a second standard can be used alternatively with the travel plug adapter.
  • Travel plug adapters or travel plugs of this type are becoming increasingly popular in times of increasing global travel and business activity. There is therefore a need for compact, easily transportable travel plug adapters that are suitable for sockets of several different standards.
  • the Chinese patent application CN101872911A discloses a travel plug with a substantially round housing. Inside the housing, power plugs are housed, which can be selected and pushed out of the housing. In this way, at least three different types of power plug can be used.
  • the desired power plug is selected by turning the upper part of the housing relative to the lower part of the housing.
  • the upper part of the housing has a single operating slide that protrudes outwards. This operating slide can be brought into engagement with various power plug elements. To do this, it is turned into a position above the power plug that is pushed out from the bottom of the housing.
  • This travel plug adapter may be useful for many purposes.
  • the mechanical twisting of the upper part of the housing relative to the lower part of the housing requires precise housing manufacturing in order to enable a low-resistance rotational movement and also to ensure that the The operating slide can be reliably brought into engagement with a power plug element in various housing positions.
  • the round shape itself is also a limitation. In many cases, for example, a cuboid-shaped travel plug adapter is perceived as easier to transport. Furthermore, with a round travel plug adapter, you cannot see all of the selectable power plug elements from a certain angle.
  • the German patent specification EN 10 2011 014 920 B4 discloses another travel plug adapter, which is referred to as a universal plug adapter.
  • this travel plug adapter several sets of pins are provided in an outer housing. Each set of pins is connected to an operating part, with which it can be moved from the outside.
  • the operating parts are guided through sliding slots in the housing.
  • the operating parts are also guided through a locking plate provided inside the outer housing.
  • This locking plate has a guide, through whose recesses the operating parts can move.
  • the guide provides an upper and a lower end position.
  • the locking plate is spring-loaded so that an operating part can be held firmly in the upper or lower end position.
  • the operating part and thus the corresponding set of pins can be released from the end positions and moved up or down by operating a selector lever provided outside next to the operating parts. Pressing this selector lever moves the locking plate against the spring force. This allows the pins to be moved from their upper or lower end position using the operating parts.
  • CN105576408A reveals a travel plug adapter with a selection slider.
  • CN202206006U discloses another travel plug adapter, which also has a selection slider.
  • the external control elements are used both to move the pin sets from a first end position, a standby position, to a second end position, a use position, and to lock the pin sets in these positions.
  • the disadvantage of this is that the selector lever must also be operated while the pin sets are being moved by the control elements. This prevents convenient
  • the object of the present invention is to provide an improved travel adapter that avoids the disadvantages of the prior art.
  • the travel adapter should be inexpensive and reliable to manufacture, easy to transport and use and offer a high level of electrical safety.
  • the solution provides a travel adapter according to claim 1.
  • the travel plug adapter according to the invention has a housing that can have different shapes.
  • a cuboid shape is usually practical for transport.
  • the mechanics of the travel plug adapter are designed so that the housing shape can be chosen largely freely. It is advantageous if the housing has at least one flat side, but the mechanics can also be adapted to curved housing surfaces.
  • the housing can be made in one piece or in multiple parts. It has proven to be expedient to make the housing in two parts, namely with a lower housing part and an upper housing part. Both can be detachably connected to one another, for example by mechanical means, expediently by screwing.
  • the housing should have at least one plug receptacle. This is expediently provided on the top of the housing.
  • the plug receptacle can have different shapes. For example, if a Schuko plug is to be accommodated, the plug receptacle will have a substantially cylindrical recess and contact sockets to accommodate the contact pins of the Schuko plug. For other plug types, a recess or pit is not required. It may be expedient to provide a flat top of the housing in which several contact sockets are provided. As a rule, at least two contact sockets should be provided, which form a contact socket pair to accommodate a plug of one standard.
  • plugs may be expedient to provide several contact socket pairs in order to be able to accommodate several plugs of different standards. If the plugs also have earth conductors and the plug receptacle is to offer the possibility of earthing, it is usually necessary to provide a third contact socket or a third contact for each plug to be accommodated.
  • the travel plug adapter should also have at least one plug of a first standard and a second plug of a second standard. (Such plugs are sometimes also referred to as pin sets.)
  • the plug of the first standard can be, for example, an EU plug and the plug of the second standard a US plug.
  • the plugs can be two-pole, i.e. unearthed, or three-pole, so that an earth pole can be provided. This travel plug adapter is therefore suitable for use in more than one country.
  • the travel plug adapter can also include three or more plugs. Travel plug adapters with three or four plugs have proven to be very useful. At least one of the plugs, but usually all of the plugs, can be moved from a standby position, in which the plug is essentially in the housing, into a use position. In the use position, the plug is completely or at least partially outside the housing. It is often possible for the plug to be moved completely back into the housing when returning to the standby position. It is useful if the plug can be moved back into the housing at least far enough that it does not get in the way of other plugs.
  • a selection slider is provided on the travel plug adapter, which can be moved to at least a first position and a second position. This selection slider releases the first plug in its first position or the second plug in its second position for transfer to the use position.
  • the selection slider offers practical added value for the travel plug adapter. It is not uncommon for a travel plug adapter to be taken to the same destination country several times. It is also possible that in a destination country the required plug is returned from the use position to the standby position when it is not needed. It is therefore advantageous if the corresponding plug type can be set on the selection slider. It is easy to label the selection slider so that the destination country can be easily read and set. Once the selection slider has been moved to the appropriate position, only the corresponding plug can be moved to the use position. This usually means that only one operating slider can be moved.
  • the operating slides are usually located close to each other. It can therefore easily happen that a finger is not placed exactly on the operating slide, and a neighboring operating slide could be accidentally moved along with it.
  • the present invention only allows the operation of one plug and thus (usually) also one operating slide at a time, the operating slide that is accidentally touched does not move (or at least it does not move the associated plug). This makes the operation of the travel plug adapter more error-tolerant.
  • the plugs can be moved into the use position using the operating slide. It is important for the safe use of the travel plug adapter that the plugs remain in the use position, for example even when they are inserted into a socket against pressure.
  • a locking or latching element is provided within the scope of the present invention. This latching element will lock at least one plug of the travel plug adapter; the latching element can also conveniently lock several or all plugs in the use position.
  • the locking element is conveniently designed as a separate component from the selection slide.
  • the design as a separate component has manufacturing advantages.
  • the selection slide is a component that does not have to transmit or withstand large forces.
  • the locking element must, by its nature, reliably apply enough force to hold a plug of any standard securely in the use position.
  • the locking element is also a separate component from the actuating slides.
  • the locking element is to be understood as a separate component if it has at least one component that is not also part of the selection slide or an actuating slide. It is generally useful if all components of the locking element are designed separately from the components of the selection slide and also the components of the actuating slides.
  • the locking element if provided, is connected to a release button, which is provided on the outside of the housing and can be operated in a release direction.
  • a release button allows the locking element to be released intuitively and safely when a plug is to be moved from the use position back to the standby position.
  • This design appears to be safer and more reliable than those in which certain movements of the actuation slide or the selection slide or the plug itself lead to the plug being released.
  • the release button can also be provided with warnings. or be designed in a warning color, for example red.
  • the release button can be part of the housing, for example if a part of the housing can be pressed in by means of a suitable design. As a rule, it is advisable to provide a recess in the housing and to provide the release button in this recess as a part independent of the housing.
  • the release button can be conveniently arranged opposite the selection slide and/or the actuation slides.
  • a practical design of a locking element is one in which the locking element has at least one locking web and this locking web has a sliding surface and a locking projection. An element that is connected to a moving plug can slide along the sliding surface. This element can then lock into the locking projection so that the plug connected to the element is locked.
  • the selection slide can have a selection slide body. This can be placed inside the housing of the travel plug adapter. It is then expedient to provide a recess in the housing that allows the selection slide to be operated. For example, an operating button, which is also referred to below as a selection slide button, can be accessible through the recess. It is also conceivable that the selection slide body is placed on the outside of the housing and acts on the operating slide on the outside of the housing or acts on the operating slide on the inside by means of a feedthrough.
  • At least one plug or all plugs can be connected to an engaging element which interacts with the selection slide in such a way that the transfer of the plug into the use position is prevented.
  • the engaging element can be designed as a cam or generally as a projection.
  • the movement of the engaging element can be prevented by a locking element of the selection slide, for example by a locking bar, a locking cam or the like. It is expedient to arrange the locking cams in a row so that the cams form a comb-like locking bar.
  • the locking element can advantageously have recesses that allow the passage of the engaging element. For example, a series of projections and recesses can be provided on the selection slide.
  • the housing of the travel plug adapter has sliding slots.
  • the operating slides can run in these sliding slots.
  • An additional sliding slot can also be provided for the selection slide.
  • Sliding slots allow the movement of a slide while simultaneously guiding it. They therefore represent an advantageous and inexpensive mechanical solution. Since several operating slides are usually provided on the travel plug adapter, it is particularly advantageous if these can be easily guided in sliding slots.
  • the operating slides only have to cause the plugs to move, usually an up or down movement.
  • the operating slides do not have to ensure that the plugs are locked in the use position, nor do they have to ensure that only one plug can be selected at a time. Since the operating slides are only allowed to perform one function in the context of the present invention, they can be easily and reliably guided in sliding slots. If an actuating slide were spring-loaded, for example, the guide in a sliding slot would generally be less user-friendly, the slide would tend to tilt, would run "jaggedly" and would in any case have a higher resistance.
  • a locking element can be provided for this purpose.
  • the locking element is expediently provided on the selection slide or connected to it.
  • the locking element and selection slide can represent a single component or at least a connected overall component.
  • the locking element includes a spring element. It is even possible for the locking element to be made entirely of a spring element, such as a leaf spring. The fingers of the locking element can be pre-tensioned using such a spring. The direction of the spring force is directed into the receptacles on the housing. The springs are prevented from protruding into the corresponding receptacles as long as all plugs are in the ready position.
  • the first plug can also be a Schuko plug.
  • a Schuko plug has two contact pins that are essentially the same as those of the Euro plug. These contact pins can protrude permanently over the plug body of the Schuko plug (or, correspondingly, over that of the Euro plug).
  • the contact pins can be moved back into the plug body when the Schuko plug body (or, correspondingly, the Euro plug body) is moved into the standby position, so that the plug takes up less space in the standby position.
  • a reliably functioning selection slide plays a major role, so that the full displacement path is available and the plug is completely moved into the use position and the standby position.
  • Fig.3 shows the same connector from a different perspective.
  • the connector is in the same position as in Fig.2 , ie the Euro plug is moved into the use position.
  • the release button 40 is provided on the previously invisible side of the housing.
  • This release button is accommodated in a housing recess. More precisely, a recess is provided in both the upper part 12 of the housing and the lower part 14 of the housing, which jointly surround the release button 40. Pressing the release button allows a plug that has been pushed downwards, such as the Euro plug 30 in this case, to be returned to the housing. However, as long as the release button is not pressed, the plug cannot be pushed into the housing. be pushed in so that it cannot happen accidentally when inserting the plug into a socket.
  • the contact pins 34A, 34B 84- for the Euro plug are guided in a plug body 32.
  • the contact pins for plugs of other standards come out of the bottom of the housing without an additional plug body being provided.
  • two contact pins are provided here, i.e. one contact pin pair each.
  • Contact pin pair 36A is intended for Great Britain, hereinafter also referred to as UK contact pins.
  • Contact pin pair 36B is intended for Australia, hereinafter also referred to as the AUS contact pin pair.
  • Contact pin pair 36C is intended for the USA, hereinafter also referred to as the US contact pin pair.
  • An earthing contact 36D is also provided. This earthing contact is intended for the United Kingdom and is therefore also referred to as a UK earthing contact. It is possible for an earthing connection to be made via this contact. However, such a contact is usually provided even if no earth conductor is run through it. This contact then serves as an opening pin for a UK socket. The opening pin means that the other two contacts can be inserted.
  • Fig.5 shows a perspective view of selected interacting parts of the exemplary embodiment of a travel plug adapter.
  • the lower housing part 14 is shown.
  • the plug body 32 which belongs to the Euro plug.
  • the first operating slide 22 is shown in a lower position in accordance with the position of the plug body 32.
  • the housing has sliding slots 42 at the front. Four sliding slots 42 arranged next to one another can be seen, each of which can accommodate an operating slide. For the sake of clarity, however, only the first operating slide 22 has been shown.
  • the selection slide body 44 can be seen above the sliding slots.
  • the recess 46 for the release button can be seen opposite the selection slide body 44.
  • the selection slide body is shown in the position in which it is used in the complete travel plug adapter. However, it is shown without the parts that hold it in this position. This simplified representation also serves the purpose of clarity. It is expedient to arrange the selection slide body 44 above the actuating slide, i.e. opposite the bottom of the housing from which contact pins can be pulled out and moved into the use position.
  • Fig.6 essentially shows the Fig.5 shown elements from a side perspective. Shown again are the housing base 14 and the selection slide body 44. The selection slide body 44 is shown in the position in which it is held by other components (not shown). Also shown is the second actuating slide 24 adjacent to the first actuating slide 22. While the first actuating slide 22 was shown in a lower position, i.e. corresponding to the use position of the plug, the second actuating slide 24 is shown in an upper position, i.e. corresponding to the standby position.
  • the selection slide body 44 has a locking cam 48 on its rear side, which faces the interior of the travel plug adapter.
  • the first actuating slide is connected to a guide arm 50.
  • This guide arm 50 can be moved by non- shown components are additionally supported and then ensures that the position and movement of the actuating slide 22 is not determined solely by the sliding slot 42. As a rule, however, it is sufficient to guide the actuating slide in sliding slots alone.
  • An engagement cam 52 is formed at the upper end of the guide arm 50.
  • This spring effect comes into effect as soon as pressure is no longer exerted on the pressure surface 60.
  • the finger 58 then moves into the locking position. In this locking position, it can engage with a stationary element connected to the housing, which can generally be described as a finger receptacle. This means that the selection slide body 44 is also held in a fixed position relative to the housing.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Claims (14)

  1. Adaptateur de voyage (10), lequel présente un boîtier, un logement d'adaptateur (16) et au moins une première fiche (30) selon une première norme et une deuxième fiche selon une deuxième norme, dans lequel la première fiche (30) et la deuxième fiche peuvent être amenées alternativement d'une position de repos, dans laquelle la fiche respective se trouve essentiellement dans le boîtier, vers une position d'utilisation, dans lequel la première fiche (30) est reliée avec un premier curseur d'actionnement (22) pour son transfert de la position de repos vers la position d'utilisation et la deuxième fiche est reliée avec un deuxième curseur d'actionnement (24) pour son transfert de la position de repos vers la position d'utilisation, dans lequel un curseur de sélection (44) est prévu, lequel libère alternativement, dans une première position, la première fiche (30) ou dans la deuxième position, la deuxième fiche, pour le transfert vers la position d'utilisation, caractérisé en ce qu'un élément de butée (66) est prévu sur le curseur de sélection (44), lequel peut verrouiller plusieurs ou toutes les fiches, au moins la première fiche (30) ou la deuxième fiche, dans la position d'utilisation et lequel est conçu comme un composant séparé du curseur de sélection (44).
  2. Adaptateur de voyage (10) selon la revendication 1, chez lequel l'élément de butée (56) est relié avec un bouton de libération (40) prévu à l'extérieur sur le boîtier.
  3. Adaptateur de voyage (10) selon l'une des revendications 1 ou 2, chez lequel l'élément de butée (66) présente au moins un pont de butée (70A, 70B, 70C), dans lequel le pont de butée (70A, 70B, 70C) présente une surface de glissement (74) et une protubérance de butée (76).
  4. Adaptateur de voyage (10) selon l'une des revendications précédentes, chez lequel au moins une fiche présente une proéminence de glissement (72) qui s'étend sur la surface de glissement (74) et peut adopter une position en butée sur la protubérance de butée (76).
  5. Adaptateur de voyage (10) selon l'une des revendications précédentes, chez lequel l'élément de butée (66) présente une multiplicité de ponts de butée (70A, 70B, 70C), par exemple deux, trois ou quatre ponts de butée (70A, 70B, 70C).
  6. Adaptateur de voyage (10) selon l'une des revendications précédentes, chez lequel au moins deux fiches présentent respectivement une proéminence de glissement (72) et les deux proéminences de glissement s'étendent sur le même pont de butée (70A, 70B, 70C) de l'élément de butée (66).
  7. Adaptateur de voyage (10) selon l'une des revendications précédentes, chez lequel au moins une fiche est reliée avec un élément de mise en prise (52), lequel agit conjointement avec le curseur de sélection (44) de sorte que le transfert de la fiche dans la position d'utilisation soit empêché.
  8. Adaptateur de voyage (10) selon la revendication précédente, chez lequel le curseur de sélection (44) présente au moins une came de blocage (48), laquelle empêche le déplacement de l'élément de mise en prise (52) dans des positions déterminées du curseur de sélection (44), et le curseur de sélection présente au moins un évidement (54A, 54B, 54C, 54D) qui permet le passage de l'au moins un élément de mise en prise (52).
  9. Adaptateur de voyage (10) selon l'une des revendications précédentes, chez lequel le boîtier présente des fentes de glissement (42) pour la réception des curseurs d'actionnement (22, 24, 26, 28).
  10. Adaptateur de voyage (10) selon l'une des revendications précédentes, chez lequel en outre un élément de verrouillage (56) est prévu, lequel empêche le déplacement du curseur de sélection (44) entre la première position et la deuxième position après le transfert de la première fiche (30) ou de la deuxième fiche dans la position d'utilisation.
  11. Adaptateur de voyage (10) selon la revendication précédente, chez lequel l'élément de verrouillage (56) présente un premier élément fonctionnel pour une action conjointe avec la première fiche (30) et un deuxième élément fonctionnel pour une action conjointe avec la deuxième fiche.
  12. Adaptateur de voyage (10) selon l'une des revendications 10 ou 11, chez lequel l'élément de verrouillage (56) présente des doigts (58), lesquels peuvent se mettre en prise dans des logements (64A, 64B, 64C, 64D) reliés solidement avec le boîtier.
  13. Adaptateur de voyage (10) selon l'une des revendications 10 à 12, chez lequel l'élément de verrouillage (56) comprend un élément de ressort.
  14. Adaptateur de voyage (10) selon l'une des revendications 12 ou 13, chez lequel les doigts (58) de l'élément de verrouillage (56) sont précontraints élastiquement en direction des logements (64A, 64B, 64C, 64D) reliés avec le boîtier.
EP17730379.9A 2016-05-20 2017-05-18 Adaptateur électrique de voyage sûr Active EP3459145B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP16001141 2016-05-20
EP16196657.7A EP3316419A1 (fr) 2016-10-31 2016-10-31 Adaptateur électrique de voyage sûr
PCT/EP2017/061977 WO2017198770A1 (fr) 2016-05-20 2017-05-18 Adaptateur de voyage sécurisé

Publications (2)

Publication Number Publication Date
EP3459145A1 EP3459145A1 (fr) 2019-03-27
EP3459145B1 true EP3459145B1 (fr) 2024-07-03

Family

ID=59067614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17730379.9A Active EP3459145B1 (fr) 2016-05-20 2017-05-18 Adaptateur électrique de voyage sûr

Country Status (3)

Country Link
EP (1) EP3459145B1 (fr)
CN (1) CN109417256B (fr)
WO (1) WO2017198770A1 (fr)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7224086B2 (en) * 2002-11-01 2007-05-29 American Power Conversion Corporation Universal multiple device power adapter and carry case
US7220139B1 (en) * 2006-07-04 2007-05-22 Hsi-Fan Chang Universal power adapter
CN201234043Y (zh) * 2008-04-30 2009-05-06 宁波宝威塑料制品有限公司 便携式电源转换插座
CN100595983C (zh) * 2008-06-06 2010-03-24 许亦恒 带点烟器插头的组合式转换插座
CN101872911B (zh) 2010-05-18 2012-11-07 智嘉通讯科技(东莞)有限公司 旋转选择推出式多国电源转接器
DE102011014920B4 (de) 2011-03-24 2013-02-21 Xyz Science Co., Ltd. Universeller Steckeradapter mit verschiedenen Steckstiftsätzen
CN202206006U (zh) * 2011-09-18 2012-04-25 王玉泉 旅游转换插座
CN202523949U (zh) * 2012-04-25 2012-11-07 深圳市铁甲科技有限公司 一种电源适配器转换基座、转换插头及其电源适配器
CN202695911U (zh) * 2012-05-08 2013-01-23 广东明家科技股份有限公司 一种可转换插头
CN105576408B (zh) * 2015-12-21 2017-11-28 公牛集团有限公司 具有按键选择功能的转换器
CN206302025U8 (zh) * 2016-05-20 2017-08-11 蓝旅有限公司 安全的旅行转换插头

Also Published As

Publication number Publication date
EP3459145A1 (fr) 2019-03-27
CN109417256A (zh) 2019-03-01
CN109417256B (zh) 2021-03-16
WO2017198770A1 (fr) 2017-11-23

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