TRAVEL ADAPTER AND SET COMPRISING A TRAVEL ADAPTER

Abstract

The invention relates to a travel adapter, comprising a housing, at least one receptacle of a first standard and at least one plug of a second standard. The receptacle of the first standard has at least one first contact socket and one second contact socket. The plug of the second standard has at least one first contact pin and one second contact pin. The plug is arranged on the housing. The receptacle is rotatably mounted in the housing. The plug or the first contact pin and the second contact pin are pivotally arranged on the housing in such a way that the plug or the first contact pin and the second contact pin can be pivoted out of the housing. The invention also relates to a set and an additional travel adapter.

Claims

1. A travel adapter comprising: a housing, at least one receptacle of a first standard and at least one plug of a second standard, wherein the at least one receptacle of the first standard has at least one first contact socket and one second contact socket, and the at least one plug of the second standard has at least one first contact pin and one second contact pin, wherein the plug is arranged on the housing and wherein the at least one receptacle is mounted pivotably in the housing and has a receptacle housing, wherein contact elements are arranged in the receptacle housing, each of which is connected to the first contact socket and the second contact socket of the at least one receptacle and which can be electrically connected to the first contact pin and the second contact pin of the respective plug by twisting the receptacle relative to the housing into an operating position corresponding to the respective plug, and wherein the at least one plug or the first contact pin and the second contact pin are arranged pivotably on the housing in such a way that the at least one plug or the first contact pin and the second contact pin can be pivoted out of the housing.

2. The travel adapter according to claim 1, wherein the first contact pin and the second contact pin are coupled to one another in such a way that they can be pivoted out of the housing together.

3. The Travel adapter according to claim 1, wherein the at least one receptacle has a contact blade and/or a third contact socket to create a protective ground connection, and the at least one plug has a third contact pin as a protective earth pin and the third contact pin is movable linearly, wherein a third contact element is arranged in the receptacle housing, and is connected to the contact blade and/or the contact socket, wherein the first contact pin and the second contact pin and the third contact pin are coupled to one another in such a way that they can be pivoted out of the housing together, wherein the first contact pin and the second contact pin can be pivoted out in a first pivot direction and the third contact pin can be pivoted out in a second pivot direction opposite to the first pivot direction.

4. The travel adapter according to claim 2, further comprising a gear mechanism and/or a coupling rod gear mechanism, is provided to assure coupling, wherein a gearing notch is provided, particularly on the gear mechanism to accommodate at least one of the contact pins.

5. The travel adapter according to claim 1, further comprising an unlocking mechanism, which enables the respective plug or the first contact pin and the second contact pin to be pivoted out when the receptacle is located in the respective operating position.

6. The travel adapter according to claim 5, wherein the unlocking mechanism is constructed in at least two parts, and has an unlocking guide channel and an engaging element, wherein the unlocking guide channel is arranged on the at least one receptacle housing and the engaging element is arranged on the plug.

7. The travel adapter according to claim 1, further comprising at least one further plug with a further standard arranged on the housing, wherein the further plug has at least one further first contact pin and one further second contact pin.

8. The travel adapter according to claim 1, further comprising a contact clasp or a contact extension arranged on at least one of the plugs or on the first contact pin and on the second contact pin.

9. The travel adapter according to claim 1, further comprising a seating for an overcurrent protection, wherein the seating is arranged on the receptacle housing opposite the at least one receptacle.

10. The travel adapter according to claim 9, further comprising a locking apparatus for locking the seating, which locking apparatus is comprises at least two parts and includes a locking cam and a locking groove, wherein the locking groove is arranged on the housing and the locking cam is arranged on the seating, wherein the locking groove and the locking cam can be brought into operative connection when the receptacle housing is in a locking position, so that the seating can be released from the receptacle housing, which locking position is different for each operating position of the plugs or the contact pins.

11. The travel adapter of claim 1, further comprising an interface configured to mount an additional module, from the group consisting of a USB charger module, a mobile rechargeable battery module, a wireless connection module, or a Wi-Fi module, on the travel adapter and to connect the additional module electrically to the at least one receptacle.

12. The travel adapter according to claim 1, further comprising at least one recessed grip for twisting the receptacle, wherein said at least one recessed grip is arranged on the receptacle housing at the interface.

13. The travel adapter according to claim 1, further comprising a latching cam arranged on the plug and/or on the first contact pin and the second contact pin to cooperate with the housing in such a way that the plug and/or the first contact pin and the second contact pin can be held firmly in place in a rest position in the housing and in an operating position in which they are pivoted out.

14. The travel adapter according to claim 1, further comprising at least one extension element arranged on the housing, wherein the at least one extension element is movable into an activation position via a guide slot by pivoting the at least one plug out and/or by pivoting the first contact pin and the second contact pin out.

15. A travel adapter comprising: a housing, at least one receptacle of a first standard and at least one plug of a second standard, wherein the at least one receptacle of the first standard has at least one first contact socket and one second contact socket and the plug of the second standard has at least one first contact pin and one second contact pin, wherein the first contact pin is electrically connected to the first contact socket and the second contact pin is electrically connected to the second contact socket, and the first contact pin and the second contact pin are arranged movably on the housing; and wherein at least one extension element is arranged on the housing, wherein said at least one extension element is movable into an activation position via guide slot.

16. A travel adapter set comprising; a travel adapter having a housing, at least one receptacle of a first standard and at least one plug of a second standard, wherein the at least one receptacle of the first standard has at least one first contact socket and one second contact socket and the at least one plug of the second standard has at least one first contact pin and one second contact pin, wherein the at least one plug is arranged on the housing and wherein the at least one receptacle is mounted pivotably in the housing and has a receptacle housing, wherein contact elements are arranged in the receptacle housing, each of which is connected to the first contact socket and the second contact socket of the at least one receptacle and which can be electrically connected to the first contact pin and the second contact pin of a respective plug by twisting the receptacle relative to the housing into an operating position corresponding to the respective plug, and wherein the at least one plug or the first contact pin and the second contact pin are arranged pivotably on the housing in such a way that the at least one plug or the first contact pin and the second contact pin can be pivoted out of the housing; and a plug adapter having a plug adapter housing, on which a plug is arranged to cooperate with the at least one receptacle of the travel adapter and has one or more receptacles of different standards.

17. The travel adapter set according to claim 16, further comprising an additional module configured to cooperate with an interface of the travel adapter the additional module selected from the group consisting of a USB charger module, a mobile rechargeable battery module, a wireless connection module, or a Wi-Fi module, the additional module electrically connected to the travel adapter.

18. The travel adapter set according to claim 16, wherein the first contact pin is electrically connected to the first contact socket and the second contact pin is electrically connected to the second contact socket.

19. The travel adapter according to claim 15, further comprising an additional module configured to cooperate with an interface of the travel adapter, the additional module selected from the group consisting of a USB charger module, a mobile rechargeable battery module, a wireless connection module, or a Wi-Fi module, the additional module electrically connected to the travel adapter.

20. The travel adapter according to claim 15, further comprising a plug adapter having a plug adapter housing, on which a plug is arranged to cooperate with the at least one receptacle of the travel adapter and has one or more receptacles of different standards.

Description

BRIEF DESCRIPTIONS OF THE DRAWINGS

[0085] The list of reference signs is an integral part of the disclosure in the same way as the technical content of the claims and figures. The figures are described sequentially and associatively. Identical reference numerals denote identical components, reference numerals with different indices indicate functionally equivalent or similar components.

[0086] In the drawing:

[0087] FIG. 1 shows a first perspective view of a travel adapter according to the invention,

[0088] FIG. 2 shows a plan view of the travel adapter of FIG. 1,

[0089] FIG. 3 shows a further perspective view of the travel adapter of FIG. 1,

[0090] FIG. 4 shows a detail view of the travel adapter of FIG. 3,

[0091] FIG. 5 shows a perspective view of the receptacle of the travel adapter of FIG. 1 without housing,

[0092] FIG. 6 shows a side view of the receptacle of FIG. 5,

[0093] FIG. 7 shows a first top view of the receptacle of FIG. 5,

[0094] FIG. 8 shows a first cross sectional view of the receptacle of FIG. 5,

[0095] FIG. 9 shows a perspective view of a plug of a first standard of the travel adapter along cross section A in FIG. 8,

[0096] FIG. 9a shows a perspective view of a plug of a first standard in a further variant according to FIG. 9,

[0097] FIG. 9b shows a top view of the plug of FIG. 9a,

[0098] FIG. 10 shows a view of a plug of a second standard of the travel adapter according to FIG. 1,

[0099] FIG. 11 shows a perspective view of a third plug of the travel adapter,

[0100] FIG. 12 shows a further cross sectional view of the receptacle of FIG. 5,

[0101] FIG. 13 shows a top view of plug of a further standard along cross section B in FIG. 12,

[0102] FIG. 14 shows a perspective view of a further travel adapter according to the invention,

[0103] FIG. 15 shows a first top view of the travel adapter of FIG. 12,

[0104] FIG. 16 shows a further perspective view of the travel adapter of FIG. 12,

[0105] FIG. 17 shows a further top view of the travel adapter of FIG. 12,

[0106] FIG. 18 shows a further perspective view of the travel adapter of FIG. 12,

[0107] FIG. 19 shows a further perspective view of the travel adapter of FIG. 12, and

[0108] FIG. 20 shows a perspective view of a set according to the invention (exploded view).

DETAILED DESCRIPTION OF THE INVENTION

[0109] FIGS. 1 to 4 show various views of a travel adapter 100 according to the invention. The travel adapter 100 comprises a housing 101, in which a receptacle 10 is arranged, and in which several plugs 20, 20′, 20″, 20′″ of different standards are arranged. The receptacle 10 is designed to accommodate external plugs of various standards. The receptacle 10 has a receptacle housing 15, in which a first contact socket 11, a second contact socket 12 and a third contact socket 13 are arranged. The contact sockets 11, 12, 13 are designed to accommodate contact pins of external plugs (mains plugs) of various standards and to cooperate therewith. The receptacle housing 15 further contains contact blades 14, 14′, which are also able to cooperate with the contacts of an external plug and are connected electrically to the contact socket 13.

[0110] The receptacle 10 is mounted in the housing 101 so as to be pivotable in the directions of rotation R, and the plugs 20, 20′, 20″, 20′″ are arranged on the respective housing sides 105, 106, 107, 108 of the housing 101, being offset by 90° with respect to each other and arranged pivotably on the housing 101. When the receptacle 10 is twisted to the respective housing side 105, 106, 107, 108 relative to the housing 101, the respective plug 20, 20′, 20″, 20′″ or the first contact pin 21, the second contact pin 22 and the third contact pin 23 are pivoted out of the housing 101. Only the plug 20, 20′, 20″, 20′″ that was chosen by the user is pivoted out of the housing 101 and into its operating position. The selection of the respective plug 20, 20′, 20″, 20′″ is indicated visually with the aid of the selection marking 19. Actuation recesses 24 for pivoting each of the plugs 20, 20′, 20″, 20′″ out are arranged on the housing sides 105, 106, 107, 108 on the housing 101. The actuation recesses 24 allow a user to reach into the housing 101 so that the plug 20, 20′, 20″, 20′″ chosen in each case may be pivoted out of the housing manually. The other plugs 20, 20′, 20″, 20′″ remain in their respective rest positions, pivoted into the housing 101 and are at least partly covered by extension elements 25. The extension elements 25 are movable into an activation position via a guide slot 26 by pivoting the contact pins 21, 22, 23 out. In the activation position, the extension elements 25 may protrude beyond the housing edges, so that the housing 101 is extended on this housing side 105.

[0111] A seating 60 is arranged on the receptacle housing 15 on the side of the housing 101 opposite the receptacle 10. This seating 60 holds an overcurrent protection 61. If the seating 60 and the overcurrent protection 61 arranged therein positioned inside the receptacle housing 15, the overcurrent protection 61 is connected electrically for example with the first contact socket 11. The seating 60 includes a seating guide 62, with which the seating 60 and therewith the overcurrent protection 61 as well may be guided into the receptacle housing 15. In the extended position, the seating 60 is connected to the receptacle housing 15.

[0112] The travel adapter 100 is equipped with a locking apparatus 70 for locking the seating 60. The locking apparatus 70 prevents access to the overcurrent protection 61 when one of the plugs 20, 20′, 20″, 20′″ is in its operating position. The locking apparatus 70 can only be unlocked when the receptacle 10 is turned in the directions of rotation R as far as the locking marking 63 and the plugs 20, 20′, 20″, 20′″ are in their rest positions. The locking apparatus is constructed in two parts and has a locking cam 71 and a locking groove 72, wherein the locking groove 72 is arranged on the receptacle housing 15 and the locking cam 71 is arranged on the seating.

[0113] The travel adapter 100 has two recessed grips 102 on the receptacle housing 15, which are used to twist the receptacle 10 in the directions of rotation R, so that it can be turned in a position relative to the housing 101 in which the seating 60 can be extended out of the receptacle housing 15. This position corresponds to the locking position 64 on the receptacle housing 15.

[0114] The travel adapter 100 has an interface 80 on the side thereof opposite the receptacle 10, which makes it possible to arrange an additional module on the travel adapter 100 and to electrically connect the additional module arranged on the interface 80 with the receptacle 10.

[0115] FIGS. 5 to 7 show the receptacle 10 of the previously described travel adapter 100 with the plugs 20, 20′, 20″, 20′″ arranged thereon, wherein the housing 101 is not shown in these figures. The plugs 20, 20′, 20″, 20′″ are designed according to the British standard (plug 20), the US standard (plug 20′), the Swiss standard (plug 20″) and the Australian standard (plug 20′″). Plugs of other standards may also be arranged on a travel adapter 100 as described here. The plugs 20, 20′, 20″, 20′″ each have a first contact pin 21, 21′, 21″, 21′″ and a second contact pin 22, 22′, 22″, 22′″. The plugs 20, 20′, 20″, 20′″ illustrated require a protective earth pin according to their respective standards, this pin being represented as third contact pin 23, 23′, 23″, 23′″. Contact elements 16, 17, 18 are arranged in the receptacle housing 15, said contact elements being connected electrically to the first contact socket 11, the second contact socket 12 and the third contact socket 13 respectively and/or to the contact blades 14, 14′ of the receptacle 10. In this context, the third contact pin 23, 23′, 23″, 23′″ forms a protective ground connection with the contact blades 14, 14′ of the receptacle 10 and/or with the third contact socket 13 and with the contact element 18. The contact elements 16, 17, 18 in the receptacle housing 15 can each be connected electrically to the respective plug 20, 20′, 20″, 20′″ by twisting the receptacle 10 relative to the housing 101. For this purpose, the contact elements 16, 17, 18 are brought into contact and thus connected electrically with the respective first contact pin 21, 21′, 21″, 21′″, with the respective second contact pin 22, 22′, 22″, 22′″, and with the respective third contact pin 23, 23′, 23″, 23′″.

[0116] Plugs according to a standard which does nor require a protective earth pin do not have a third contact pin 23, 23′, 23″, 2′″. In such cases, the contact element 18 which is electrically connected to the contact socket 13 or to the contact blades 14, 14′, is electrically insulated from a plug which does not have a third contact pin 23, 23′, 23″, 23′″ by being covered by the housing or by plug sheathing (not shown).

[0117] The selection marking 19 on the receptacle housing 15 (FIG. 2) is located in the region above the contact elements 16, 17, 18, so that the user of the travel adapter 100 can see which plug 20, 20′, 20″, 20′″ the contact sockets 11, 12, 13, 14, 14′ are electrically connected to. The selected plug 20, 20′, 20″, 20′″ in each case, or the contact pins 21, 22, 23; 21′, 22′, 23′, 21″, 22″, 23″; 21′″, 22′″, 23′″ thereof are pivoted out of the housing by the user. The first contact pin 21, 21′, 21″, 21, the second contact pin 22, 22′, 22″, 22′″ and the third contact pin 23, 23′, 23″, 23′″ are coupled to one another in such manner that they can be pivoted out of the housing together. A gear mechanism is provided for each in order to couple the contact pins 21, 22, 23; 21′, 22′, 23′; 21″, 22″, 23″; 21′″, 22′″, 23′″. The contact pins 21″, 22″, 23″ can only be pivoted out together with the plug 20″, a pivot apparatus 28 being arranged on plug 20″ for this purpose.

[0118] As shown in FIGS. 8 to 10, gear mechanisms arranged on the receptacle housing 15 are used to couple the contact pins 21, 22, 23; 21′, 22′, 23′; 21″, 22″, 23″; 21′″, 22′″, 23′″. The contact pins 21, 22, 23; 21′, 22′, 23′, 21″, 22″, 23″; 21′″, 22′″, 23′″ are equipped with contact clasps 29, which each cooperate with the contact elements 16, 17, 18 on the receptacle if one of the plugs 20, 20′, 20″, 20′″ is in its operating position. In the present case, the contact clasps 29 are embodied as elastically resilient metal plates, representing one of the possible variants of a detachable electrical connection. The gear mechanisms are embodied either as gear mechanisms 30 or as coupling rod gear mechanisms 40. By creating a mechanical coupling, a gear mechanism enables the respective contact pins 21, 22, 23; 21′, 22′, 23′; 21′″, 22′″, 23′″ to be pivoted out together, so that they may be moved into their operating position and/or rest position synchronously. Latching cams 37, 47 are also provided on the gear mechanism of the plug 20, 20′, 20″, 20′″ to cooperated with the housing 101 of the travel adapter 100 in such manner that the plug 20, 20′, 20″, 20′″ can be held in place in the rest position in the housing 101 and in an operating position in which it is pivoted out.

[0119] A gear mechanism 30, such as is shown in FIG. 9 connects the contact pins 21′, 22′, 23′. The gear mechanism 30 is furnished with tooth systems 31, 32 which mesh with each other and enable the contact pins 21′, 22′, 23′ to be pivoted out together. The tooth systems 31, 32 rotate in symmetrically opposite directions. A gearing notch 33 is arranged on the gear mechanism, so that the third contact pin 23′ when retracted in its rest position is seated in the gearing notch 33, thereby allowing the size of the travel adapter to be minimised.

[0120] A coupling rod gear mechanism 40 as shown in FIG. 10 connects the contact pins 21, 22, 23. The coupling rod gear mechanism 40 includes a connecting rod 41 which enables the contact pins 21, 22, 23 to be pivoted out together. In the example illustrated, the contact pins 21 and 22 are aligned congruently, so only the contact pin 21 can be shown.

[0121] As illustrated in FIGS. 9 and 10, the first contact pin 21, 21′ and the second contact pin 22, 22′ are pivotable outwards in a first pivot direction, and the third contact pin 23; 23′ is pivotable outwards in a second pivot direction opposite to the first pivot direction.

[0122] FIGS. 9a and FIG. 9b show a further variant of the plug 20′ according to FIG. 9. This plug 20′ has contact extensions 29a, each of which cooperates with the contact elements 16, 17, 18 on the receptacle housing 15 if the plug 20′ is in its operating position. As explained here, the contact extensions 29a extend through the gear mechanism 30 and can be connected to the contact elements 16, 17, 18 and are held securely. The contact elements on the receptacle housing are elastically resilient, constructed for example as contact clasps (not shown).

[0123] FIG. 11 shows a plug 20″ according to the Swiss standard, the Italian standard and the Brazilian standard, wherein these standards are selectable. For this purpose, the third contact pin 23″ designed as the protective earth pin can be moved linearly. The protective earth pin is arranged so as to be movable linearly in a slot 36 between the first contact pin 21″ and the second contact pin 22″. When plug 20″ has been pivoted out with the pivot apparatus 28 and after the latching cam 27 has locked on the housing 101, the user can move the protective earth pin into at least three positions along the slot 36.

[0124] FIGS. 12 and 13 shows the travel adapter 100 and an unlocking mechanism 50, which allows each of the plugs 20, 20′, 20″, 20′″ individually or their contact pins to be pivoted out when the receptacle 10 and the selection marking 19 appears in the respective operating position of the selected plug 20′ (see for example FIG. 5). At the same time, the unlocking mechanism 50 prevents the other plugs 20, 20″, 20′″ or their contact pins from pivoting out, so they are forced to remain in their rest position.

[0125] The unlocking mechanism 50 includes an unlocking guide channel 51 and an engaging element 52. The unlocking guide channel 51 and the engaging element 52 cooperate in such manner as to ensure reliable unlocking. In this situation, the engaging element 52 is arranged on the gear mechanism 30 of the plug 20′ and the unlocking guide channel 51 is arranged on the receptacle housing 15.

[0126] FIGS. 14 to 19 show various views of a further travel adapter 400 according to the invention. The travel adapter 400 comprises a housing 401 in which a receptacle 410 with a first standard is arranged and in which a plug 420 with a different standard from the first standard is arranged. The illustrated standard of plug 420 corresponds to the British standard. The receptacle 410 is designed to accommodate external plugs of various standards. For this purpose, the receptacle has a first contact socket 411, a second contact socket 412 and a third contact socket 413 and contact blades 414, 414′. The third contact socket 413 is furnished with a slot, so that an external plug according to the Swiss plug standard, the Italian plug standard and the Brazilian plug standard can be arranged in the receptacle 410, for example a plug such as is shown in FIG. 11.

[0127] The plug 420 is arranged on the side of the housing 401 opposite the receptacle 410. The plug 420 has a first contact pin 421 and a second contact pin 422, wherein the first contact socket 412 is electrically connected to the first contact socket 411 and the second contact pin 422 is electrically connected to the second contact socket 412. The plug 420 also has a third contact pin 423, which is a protective earth pin and is electrically connected to the third contact socket 413 or to the contact blades 414, 414′.

[0128] The contact pins 421, 422, 423 are arranged movably on the housing 401, so that they can be pivoted out of the housing 401. Their end position when pivoted out of the housing 401 is called the operating position (FIG. 18). In the operating position, the contact pins 421, 422, 423 can be introduced into the respective contact sockets of an external plug. Conversely, the rest position is the end position after pivoting inwards, in which the contact pins 421, 422, 423 are located in the housing 401 (FIG. 16).

[0129] As was described earlier with reference to FIG. 9 or FIG. 10, the contact pins 421, 422, 423 are coupled to one another in such manner that they can be moved out of the housing 401 together. For this purpose, the travel adapter 400 is equipped with a gear mechanism and the contact pins 21, 22 and the contact pin 23 follow different pivot directions.

[0130] Extension elements 425 are arranged on the housing 401 and are movable into an activation position by moving the first contact pin 421 and the second contact pin 422 outwards. Each of the extension elements 425 is movable via a guide slot 426, as was described earlier with reference to FIG. 1.

[0131] In an alternative design of this travel adapter (as shown in FIG. 15), the extension elements may optionally be activated with the aid of a trigger mechanism. The user can activate the trigger mechanism 418 by means of a release button 419 (dashed circle) for example, which releases the extension elements 425, so that they are moved from their inactive position into their activation position. The contact pins 421, 422, 423 can subsequently be move out of the housing 401. The release button 419 may be arranged on the housing 401 of the travel adapter 400, so it is easily accessible to the user. A release slider may also be used as the release button 419.

[0132] The travel adapter 400 may include further elements of the travel adapter 100 according to FIGS. 1 to 13. For example, the travel adapter 400 has an interface 480 which makes it possible to arrange an additional module as described herein on the travel adapter 400 and to connect the additional module arranged on the interface 480 electrically to the receptacle 410.

[0133] FIG. 20 shows a set 500 according to the invention comprising a travel adapter 100 as described herein with an additional module 90 and a plug adapter 200. The plug adapter 200 has a plug adapter housing 201, on which a plug 220 is arranged to cooperate with the receptacle 10 of the travel adapter 100 and one or more receptacles 210 of different standard(s). The plug adapter 200 has a substantially disc-shaped plug adapter housing 201, so that the set 500 in the assembled state may be of compact structure. The plug 220 of the plug adapter 200 conforms to a first standard, while the receptacle 10 of the travel adapter 100 conforms at least to the same standard, so that the plug 220 is able to be plugged into the receptacle 10 of the travel adapter 100 and may therefore be connected electrically thereto.

[0134] The receptacle 210 of the plug adapter 200 conforms to several standards, so that contact pins of plugs conforming to an enormous variety of standards can be connected to this receptacle 210. For this purpose, the receptacle 210 has multiple contact sockets 211.

[0135] The travel adapter 100; 400 as described herein has an interface 80; 480 (see FIG. 3; FIG. 16). The additional module 90 has cams 95. In the assembled state, the interface 80; 480 of the travel adapter 100; 400 accommodates the cams 95 of the additional module 90, so that they cooperate mechanically. In this context, at least one cam 95 has an electrical contact 96, which can be electrically connected to a contact in the interface 80; 480, so that the additional module 90 can be supplied with electrical energy when the travel adapter 100; 400 is connected to an external energy supply.

[0136] The additional module 90 is for example either a USB charger module, mobile rechargeable battery module, Bluetooth module, WiFi module, wireless charger module, IoT (Internet of Things) module, nightlight module, storage compartment module for a cable, smartphone bracket module, smart meter module (particularly with a voltage, current and power display), key finder module, smoke alarm module, insect repellent module or fragrancing module. For example, an electrical device such as a smartphone, a Tablet or a music playback device may be connected to the USB charger module, so that the rechargeable battery arranged inside it can be charged.

[0137] The previously described set 500 may also comprise the travel adapter 400, as described previously and represented in FIG. 14 to FIG. 19 instead of the travel adapter 100.