Charging insert and electrical supply unit with a charging insert

Abstract

Charging insert (10) for charging electrical devices, designed for installation in a cavity, with a mounting plate (14) having a front (16) and a rear (18), and a reel (36) attached to the rear (18) of which a charging cable (38) is arranged therein and can be wound up and unwound reversibly, wherein the charging cable (38) has at one end a charging plug (22) in particular designed as a USB plug, which extends in a plugging direction (S), wherein the mounting plate (14) has a receptacle (20) for the charging plug (22) having a base (28) and side walls (30), wherein the charging plug (22) is fixed in a parking position in the receptacle (20) in a form-fitting and / or force-fitting manner and is reversibly removable.

Description

[0001] The invention relates to a charging insert for charging electrical devices and an electrical supply device with a charging insert.

[0002] In the present case, a charging insert is understood to mean a structural unit for installation in a cavity, for example a housing of a power strip, a cavity box or flush-mounted box and / or another cavity, such as a cavity wall of a piece of furniture such as a kitchen unit, wherein the charging insert is designed for charging electrical devices, in particular communication devices such as smartphones, tablets, etc.

[0003] Charging facilities for such electrical devices are often characterized by the fact that the corresponding charging cables lie around loose and are a nuisance when not in use.

[0004] Based on this, the object of the invention is to provide a charging cable which is easy to handle and does not cause interference when not in use.

[0005] The object is achieved according to the invention by a charging insert for charging electrical devices, in particular communication devices, wherein the charging insert is designed for installation in a cavity and has a mounting plate with a front side and a back side. Attached to the back is a reel with a reversibly wound and unwound charging cable arranged therein, which has at one end a charging plug, designed in particular as a USB plug, which extends in a plug-in direction that simultaneously defines a longitudinal direction of the plug. The mounting plate has a receptacle for the charging plug, wherein the receptacle is delimited by a base and side walls. The charging plug is fixed in the receptacle in a parked position in a form-fitting and / or force-fitting manner and is located in the receptacle so that it can be reversibly removed.The plug-in direction of the charging plug in the parking position also defines a longitudinal direction of the receptacle.

[0006] The charging plug is held in the holder, for example by locking elements or clamping elements or alternatively or additionally also magnetically fixed and can be removed from the holder as required.

[0007] By securing the charging plug in the holder, it can be virtually clipped into the holder, securing it in the position defined by the parking position. This provides the particular advantage that the charging plug is held in a defined position within the holder and does not protrude loosely. It is therefore protected and secured within the holder and, in particular, does not protrude beyond the front panel, at least not beyond the front panel of any panel that may be attached. This prevents damage to the charging plug or the cable, and provides protection for the plug and cable.

[0008] The integrated retractor automatically retracts the charging cable when not in use, so that the charging cable does not lie around on an otherwise used work surface, such as a kitchen worktop.

[0009] In a practical design, the charging plug does not protrude beyond the front of the mounting plate when parked. This creates a visually appealing design in the parked position.

[0010] The charging plug preferably has a flat side, which allows it to rest flat on the base of the receptacle when parked. The plug-in direction of the charging plug is therefore not perpendicular to the receptacle and therefore not oriented forward (perpendicular to the front). Rather, the charging plug nestles flatly into the receptacle. In the park position, the charging plug therefore runs parallel to the front of the mounting plate.

[0011] Opposite the plug's insertion direction, the receptacle, specifically the base, has a cutout for a cable connected to the charging plug. The cable is routed through the cutout from the front to the rear to the reel located there. The base of the receptacle is preferably completely closed in the area of ​​the charging plug.

[0012] In a preferred embodiment, the mounting plate has a release mechanism for releasing the charging plug from its parked position. This allows the charging plug to be easily released and unlocked from its clamped or latched position in the receptacle, allowing the user to easily grasp the charging plug and then pull it out when needed.

[0013] In a preferred embodiment, the unlocking device comprises a release element which, when the unlocking device is actuated, pushes the charging plug out of its parked position. The unlocking device therefore actively moves the charging plug into its position, in particular pushing it forward out of the receptacle so that it can be easily grasped by the user.

[0014] The release element is preferably arranged in the base of the receptacle and thus below the charging plug when the latter is in the parked position. For this purpose, a recess is formed in the base into which the release element is recessed. Therefore, the charging plug is preferably pushed out of the receptacle from below when the release element is actuated.

[0015] Furthermore, the unlocking device preferably has an actuating element that can be manually actuated by the user and which, when actuated, acts on the unlocking element to release the charging plug.

[0016] Preferably, the unlocking device is designed as a rocker lever mechanism mounted in the mounting plate, with the actuating element at one end of the lever and the unlocking element at the other end. Furthermore, a rocker bearing is preferably formed between the lever ends, which is mounted on a bearing receptacle of the mounting plate.

[0017] This rocker arm mechanism is inserted into the mounting plate, particularly from the front. The mounting plate has a suitably shaped recess into which the rocker arm mechanism is inserted.

[0018] According to a preferred first variant, the rocker mechanism comprises a rocker, one end of which is actuated by the actuating element and the other end of which forms the unlocking element. The rocker is designed, for example, as a simple angled, for example V-shaped, web, which extends in a straight line, particularly when viewed from above. In the V-shaped design, the V-shaped corner forms the rocker bearing, with which the rocker is supported, for example, on a floor area.

[0019] Preferably, the actuating element is arranged laterally and thus transversely next to the receptacle, in particular in a central region of the receptacle, i.e., approximately halfway along the receptacle's length. The actuating element is preferably designed as a pin or a push button, and in particular is guided in a corresponding guide. The rocker is preferably only loosely mounted. Preferably, the rocker is also not connected to the actuating element, i.e., the actuating element rests only loosely on the rocker.

[0020] According to an alternative variant, the rocker arm mechanism, viewed from above, is preferably L-shaped, with a first L-leg running alongside the receptacle and parallel to the insertion direction, and a second L-leg forming the unlocking element, which runs in the base below the receptacle and perpendicular to the insertion direction. This design enables simple operation from the front, while at the same time, reliable unlocking is achieved thanks to the second L-leg running transversely and below the receptacle, which forms the unlocking element.

[0021] According to a first preferred embodiment, the actuating element does not protrude beyond the front of the mounting plate. The actuating element is therefore virtually integrated into the mounting plate and, for example, is flush with it at the front. According to an alternative second embodiment, the actuating element protrudes beyond the front of the mounting plate and is particularly easy to locate by touch.

[0022] In both cases, the actuating element is designed, for example, as a pin or push button, which can be pressed and thus actuated, in particular, from the front.

[0023] Preferably, the unlocking device is also free of spring elements or elastic elements. Therefore, no spring elements or elastic elements are provided that push or pull the unlocking device or parts thereof into a defined position. Rather, it is a simple mechanism mounted on the mounting plate.

[0024] Preferably, the charging plug is held between two opposite side walls in a clamped or form-fitting manner. Suitable fixing elements are provided on the side walls for this purpose.

[0025] According to a first preferred variant, the side walls extend parallel to the plug-in direction and thus to the longitudinal direction of the receptacle. The receptacle thus has a width that is adapted to the width of the charging plug, so that the charging plug is held precisely between the side walls, particularly by clamping.

[0026] In an alternative design, the side walls between which the charging plug is secured run perpendicular to the plug-in direction or longitudinal direction. In this case, the charging plug is not held laterally, but rather secured longitudinally between a front and rear side wall.

[0027] In a preferred embodiment, the receptacle is designed as a recessed grip, with the charging plug resting centrally in the recessed grip in the parked position, so that two engagement areas are formed laterally next to the charging plug in the parked position, allowing the charging plug to be grasped with two fingers. In this embodiment, an additional unlocking device is preferably omitted. Alternatively, an additional unlocking device is provided.

[0028] Specifically in this design variant with the recessed grip, the charging plug is fixed in the parked position longitudinally between a front and a rear side wall. The charging plug is therefore held in the receptacle in a form-fitting or force-fitting manner in the longitudinal direction, preferably fixed exclusively in the longitudinal direction. It is therefore not held on the sides running parallel to the plug-in direction. In this design variant, an end wall of the receptacle preferably has a bulge into which a front end of the charging plug is received in the parked position and in which this front end is held in a form-fitting manner. The form-fitting connection is in particular only formed in a transverse direction perpendicular to the plug-in direction. The bulge is preferably open towards the front so that the front end can be plugged into the bulge from the front, i.e. from the front.The front end refers specifically to the very front end of the charging plug. This is designed as a plug-in end that plugs into a corresponding charging socket on the electrical device. This plug-in end is typically tapered compared to a rear portion of the charging plug, and the width of the recess is adapted to the width of this tapered portion.

[0029] The charging insert is preferably the size of a conventional socket insert for installation, for example, in flush-mounted or cavity-wall sockets. It therefore has a standard size, allowing it to be universally used and combined, particularly with other standard components such as sockets. When reference is made to conventional socket inserts, this refers in particular to standard, single-phase household sockets (Schuko sockets), as used particularly in Germany. The size is therefore particularly adapted for use in such flush-mounted or cavity-wall sockets, which typically have a diameter of 68 mm.

[0030] The mounting plate preferably has a rectangular, in particular square, outer contour and preferably a central, in particular circular, elevation, wherein the receptacle is formed in the elevation. The previously described unlocking device is preferably also inserted in the elevation.

[0031] Preferably, the central elevation has a diameter that corresponds to the inner diameter of the conventional socket described above. When the charging insert is combined with sockets, a uniform overall appearance is achieved.

[0032] The charging cable expediently has a second end, in particular with a connection plug, wherein the second end extends from the reel at the rear and is provided for connection to charging electronics and, when installed, is connected to such charging electronics. The charging cable therefore extends from the reel again with its second end and can be connected to the charging electronics. The charging cable preferably has a plug at each of its two opposite ends, namely the charging plug that can be pulled forwards out of the charging insert and, opposite this, the connection plug for connection and insertion into a corresponding socket of the charging electronics. In a preferred embodiment, the charging insert itself therefore has no charging electronics and can therefore be designed to be particularly space-saving. In particular, this means that no 220 V connection for the charging insert is required.Rather, in a preferred embodiment, the charging electronics are arranged separately from the charging insert.

[0033] Alternatively, charging electronics are integrated into the charging insert. In this variant, the charging insert is equipped with connectors, particularly terminal connectors, for connection to a 220V power supply.

[0034] Preferably, the mounting plate further comprises at least one retaining web on its rear side, to which the reel is attached. In particular, two opposing retaining webs are provided, between which the reel is arranged. The reel is secured to the at least one retaining web, for example, by clamping, locking, gluing, or screwing.

[0035] The object is further achieved according to the invention by an electrical supply device which has at least one socket and a charging device with a charging insert, as described above. The electrical supply device preferably has a plurality of sockets, for example two or three sockets. According to a first variant, the supply device is a power strip, in particular a mobile power strip with a connecting cable which can be inserted into a socket. However, the power strip can also be designed as a stationary power strip and can be arranged, for example, on a piece of furniture, for example a desk, or on an element of a kitchen unit.Furthermore, the electrical supply device can be a socket arrangement on a wall, for example, a hollow wall, and especially in a piece of furniture or a furniture wall, especially, for example, a kitchen unit. The electrical supply device is preferably integrated into a kitchen unit, in particular into a wall area above a work surface.

[0036] In all cases, the electrical supply device is characterized by providing at least one or more sockets and, in addition, the charging option via the charging device. The charging insert described above is part of the charging device. Preferably, a separate charging electronics unit is also included, to which the charging cable of the charging insert is connected, as described above.

[0037] In a preferred embodiment, the electrical supply device further comprises a common, uniform front side, which is formed, for example, by a panel in which the at least one socket and the charging insert are accommodated.

[0038] Embodiments of the invention are explained in more detail below with reference to the figures, which show, in partially simplified representations: Fig. 1 an electrical supply device designed as a mobile power strip with a charging insert, Fig. 2A is a plan view of the front of a charging insert according to a first embodiment, Fig. 2B a perspective view of the front of the first embodiment, Fig. 2C, Fig. 2D two side views of the loading insert according to the first embodiment, Fig. 3 a perspective view of a front side of a second embodiment, Fig. 4 a perspective view of a front side of a third embodiment, and Fig. 5A-5C another version of the charging insert in different representations.

[0039] In the figures, parts with the same function are provided with the same reference symbols.

[0040] One in the Fig. The electrical supply device 2 shown in Figure 1 is designed as a mobile socket strip, which can therefore usually be positioned as desired and is connected via a connecting cable 4, which is Fig. 1 is merely indicated, can be connected to a power outlet. In the exemplary embodiment, the supply device 2 has two power outlets 6 and, in addition, a charging device 8 with a charging insert 10. Similar to the power outlets 6, this is inserted into a housing 12 with corresponding receptacles. Preferably, a charging electronics unit (not shown in detail here) is also integrated within this housing 12, which is part of the charging device 8.

[0041] The charging insert 10 is preferably the same size as the other sockets 6. This creates a uniform appearance overall, and the charging insert 10 can also be combined with conventional sockets in any way. For example, a common cover is provided for the sockets 6 and the charging insert 10. Alternatively or additionally, each insert (sockets 6, charging insert 10) has an insert-specific cover, although these may have the same appearance or be identical. In the exemplary embodiment, these insert-specific covers are formed in particular by a square cover frame with a central, circular recess or depression, wherein the charging insert 10 (in particular its elevation 26, cf. Fig. 2B) and the recess serves to accommodate a plug.

[0042] Different versions of the charging insert 10 are shown in the Fig. 2A to 2B as the first variant and in Fig. 3 and Fig. 4 shown as second and third variants.

[0043] In all embodiments, the respective charging insert 10 has a particularly square mounting plate 14, which in the exemplary embodiment has screw holes in the corner areas for screwing the mounting plate 14. Alternatively, the charging insert 10 is attached in another way, for example by clipping or locking.

[0044] The mounting plate 14 has a front side 16 and a rear side 18 (compare Fig. 2C, Fig. 2D). On the front side 16 there is a holder 20 for a Fig. 2A, the charging plug 22 is indicated by a dashed line. In the first and second embodiments, an additional unlocking device 24 is formed on the front side 16.

[0045] The receptacle 20 and the unlocking device 24 are preferably integrated within a central, circular elevation 26.

[0046] The receptacle 20 has a base 28, which runs parallel to the front side 16 and thus parallel to a plane defined by this front side 16. It extends in a longitudinal direction L, which simultaneously corresponds to a plug-in direction S of the charging plug 22 inserted in the receptacle 20. The receptacle 20 is further delimited laterally by several side walls 30, which together form a circumferential side wall.

[0047] The mounting plate 14 also extends in a transverse direction Q. The front side 16 and the front plane are spanned by the longitudinal direction L and the transverse direction Q. Furthermore, the mounting plate 14 still has a thickness in a vertical direction V. In the vertical direction V, the mounting plate 14 therefore extends from the rear side 18 to the front side 16. Contrary to the vertical direction V, the entire charging insert 10 is also inserted into the supply device 2.

[0048] At the rear end of the charging plug 22, a cable 32 is connected, which is guided through an opening 34 in the mounting plate 14 to the rear side 18 (compare in particular the Fig. 2A - 2D).

[0049] Attached to the rear side 18 is a reel 36, in which the cable 32 is automatically wound. For this purpose, a suitable spring mechanism is arranged within the reel 36.

[0050] The reel 36 is mounted between two opposite retaining webs 37 projecting in the vertical direction V, for example via fastening screws

[0051] An opposite end of the cable 32 extends out of the reel 36 and preferably has a connector plug (not shown in detail here), which, when installed, is connected to charging electronics (not shown in detail here). The cable 32, together with the charging plug 22 and any additional connector plug, form a charging cable 38. As an alternative to using a connector plug, the cable 32 can also be connected directly to the charging electronics.

[0052] The unlocking device 24 in the exemplary embodiment is formed by a rocker arm mechanism. It is in particular L-shaped and has a first L-leg which runs laterally next to the receptacle 20 and parallel to the latter. This first L-leg forms part of a rocker arm, at one end of which an actuating element 40 is formed. The unlocking device 24 further has a second L-leg which is angled at a right angle to the first L-leg and which in particular also initially runs angled downwards counter to the vertical direction V, in such a way that it dips into a cutout in the base 28 and is thus arranged below the receptacle 20 or the charging plug 22 when the latter is in its parked position in the receptacle 20 (cf. in particular Fig. 2A and Fig. 2B).

[0053] This second lever end forms an unlocking element 42. The rocker arm mechanism further comprises a rocker bearing 44, which is formed, for example, by a transversely extending bearing pin or laterally projecting bearing knobs and is received in a corresponding bearing receptacle in the mounting plate 14. The mounting plate 14 generally has a suitable recess for the unlocking device 24, into which the latter is inserted from the front. In the exemplary embodiment, the unlocking device 24 is formed solely by the described mechanism with the two L-shaped arms and the rocker bearing 44, without any further elements being provided. In particular, the unlocking device 24 does not have any spring elements or other elastic elements that hold the unlocking device in a defined position or push or pull it.

[0054] As can be seen specifically from the Fig. 2B, clamping webs oriented in the vertical direction V are formed on the edge of the side walls, between which the charging plug 22 is clamped when it is located in the receptacle 20.

[0055] Generally, the charging plug 22 is held in a parked position in the receptacle 20. In addition to clamping, a positive locking mechanism, for example, using locking lugs, can also be provided. Alternatively or additionally, a magnetic locking mechanism is also generally possible.

[0056] In all cases, the charging plug 22 rests with a flat side flat on the bottom 28 of the receptacle 20, in particular in such a way that the charging plug 22 does not protrude forward beyond the front side 16.

[0057] If, however, it is unlocked by the release device 24, it essentially protrudes slightly from the front panel 16 and can be easily grasped and then extended to the desired length. After use, the charging cable 38 is rewound over the reel 36, and the charging plug 22 is clipped back into the receptacle 20, thus securing it in its parked position.

[0058] The actuating element 40 is in the embodiment according to Fig. 2 pin-shaped in the manner of a pin protruding in the vertical direction V, so that it projects forward beyond the front side 16 and thus beyond a corresponding front plane.

[0059] In the version according to Fig. 3, the actuating element 40 is arranged flush and therefore does not protrude.

[0060] In both cases, the actuating element 40 can be actuated by pressing against the vertical direction V. Due to the rocker lever mechanism, this causes the unlocking element 42 to be lifted upwards in the vertical direction V and, when the charging plug 22 is inserted, to be pushed out of the fixing and out of the receptacle 20.

[0061] In the Fig. In the embodiment shown in Figure 4, instead of an unlocking device 24, a recessed grip 46 is formed, which, when the charging plug 22 (not shown here) is inserted, forms two lateral engagement areas so that the charging plug 22 can be gripped and pulled out by a user. The two engagement areas are divided by a raised, central web 48 of the base 28. The charging plug 22 rests with its flat side on this central web 48 in the parked position. The web 48 is narrower than the charging plug 22, at least in the area of ​​its support surface, so that the latter can also be gripped from behind. In the exemplary embodiment, the web 48 has lateral flanks that run diagonally outwards from the support surface.

[0062] In this embodiment, the charging plug 22 is clamped within the receptacle 20 in the longitudinal direction L. It is thus supported on a front wall and a rear wall. A recess 50 is formed on the front wall, so that a front end of the charging plug 22 is positively received there, in particular such that it is fixed in the transverse direction Q. In the vertical direction V, the recess 50 is open at the top, so that the charging plug 22 can be inserted from above.

[0063] Towards the rear wall, the grip recess 46 is adjoined by a narrow recess into which the cable 32 is inserted and in which the opening 34 to the rear side 16 is formed.

[0064] In the Fig. 5A to 5C show a further variant of the charging insert 10, with a preferred embodiment of a rocker arm mechanism as the unlocking device 24. Fig. 5A shows a perspective view, Fig. 5B supervision and Fig. 5C is a sectional view. The retractor 36 is not shown.

[0065] The rocker mechanism has a rocker 52, which is designed in particular as a simple web or strip which - viewed in plan view - extends linearly (cf. Fig. 5B). The rocker 52 is - viewed from the side - particularly V-shaped (cf. Fig. 5C).

[0066] The rocker 52 preferably extends in the transverse direction Q and, with one lever end, enters an actuation chamber laterally adjacent to the receptacle 20. The actuation element 40, which is designed in particular in the manner of a preferably countersunk push button, is guided in this actuation chamber. Upon actuation of the push button, the other lever end of the rocker 52, which forms the unlocking element 42, is pushed upward, so that the charging plug 22 inserted in the receptacle 20 is pushed out. Fig. Figure 5C shows an unlocking position where the lever end is pushed upward. When the charging plug 22 is inserted, the lever end is pushed down again, thereby raising the push button.

[0067] The rocker arm mechanism according to Fig. 5 is particularly simple and robust. List of reference symbols 2 electrical supply equipment 4 connection cables 6 socket 8 Charging device 10 Charging insert 12 housings 14 Mounting plate 16 Front 18 Back 20 recordings 22 charging plugs 24 Unlocking device 26 Survey 28 Floor 30 side walls 32 cables 34 Breakthrough 36 reels 37 Stop bridge 38 charging cables 40 Actuating element 42 Release element 44 tilting bearings 46 recessed grip 48 jetty 50 recess 52 Seesaw L longitudinal direction S Plug direction Q transverse direction V Vertical direction

Claims

[1] Charging insert (10) for charging electrical devices, which is designed for installation in a cavity, with a mounting plate (14) which has a front side (16) and a back side (18) and on the back side (18) of which a reel (36) is attached, with a charging cable (38) arranged therein and which can be reversibly wound up and unwound, wherein the charging cable (38) has at one end a charging plug (22), which is designed in particular as a USB plug and extends in a plug-in direction (S), wherein the mounting plate (14) has a receptacle (20) for the charging plug (22), which has a base (28) and side walls (30), wherein the charging plug (22) is fixed in a positive and / or non-positive manner in a parked position in the receptacle (20) and can be reversibly removed. [2] Charging insert (10) according to the preceding claim, wherein the charging plug (22) does not protrude beyond the front side (16) of the mounting plate (14) in the parking position. [3] Charging insert (10) according to one of the preceding claims, wherein the charging plug (22) has a flat side with which it rests flat on the bottom (28) of the receptacle (20) in the parking position. [4] Charging insert (10) according to one of the preceding claims, wherein adjacent to the receptacle (20), in particular opposite to the plug-in direction (S) of the charging plug (22), the mounting plate (14) has an opening (34) for a cable connected to the charging plug (22). [5] Charging insert (10) according to one of the preceding claims, wherein the mounting plate (14) has an unlocking device (24) for releasing the charging plug (22) from its parking position. [6] Charging insert (10) according to the preceding claim, wherein the unlocking device (24) has an unlocking element (42) which, upon actuation of the unlocking device (24), pushes the charging plug (22) out of its parking position. [7] Loading insert (10) according to the preceding claim, wherein the unlocking element (42) is arranged in the bottom (28) of the receptacle (20). [8] Charging insert (10) according to one of the two preceding claims, wherein the unlocking device (24) has an actuating element (40) which, when actuated, acts on the unlocking element (42) to release the charging plug (22). [9] Loading insert (10) according to one of claims 5 to 8, wherein the unlocking device (24) is designed as a rocker lever mechanism mounted in the mounting plate (14) with the actuating element (40) at one lever end and the unlocking element (42) at another lever end. [10] Loading insert (10) according to the preceding claim, wherein the rocker mechanism comprises a rocker, on one end of which the actuating element (40) acts and the other end of which forms the unlocking element (42). [11] Charging insert according to the preceding claim, wherein the actuating element (40) is mounted in a transverse direction (Q) next to the receptacle (20) and is designed in particular in the manner of a push button. [12] Loading insert (10) according to claim 8, wherein the rocker arm mechanism is L-shaped in plan view, with a first L-leg which runs next to the receptacle (20) and parallel to the plug-in direction (S) and a second L-leg which forms the unlocking element (42) and for this purpose runs in the bottom (28) of the receptacle (20) and perpendicular to the plug-in direction (S). [13] Loading insert (10) according to one of claims 5 to 12, wherein the unlocking device (24) is free of spring elements or elastic elements. [14] Charging insert (10) according to one of the preceding claims, wherein the charging plug (22) is held between the side walls (30) in a clamping or form-fitting manner, wherein the side walls (30) preferably run parallel to the plugging direction (S). [15] Charging insert (10) according to one of the preceding claims, wherein the receptacle (20) is designed as a grip recess (46) in which the charging plug (22) lies centrally in the parked position with two engagement areas formed laterally next to the charging plug (22) so that the charging plug (22) can be gripped with two fingers. [16] Charging insert (10) according to one of the preceding claims, wherein the charging plug (22) is held in the receptacle (20) in a form-fitting or force-fitting manner in the plugging direction (S) and an end wall of the receptacle (20) preferably has a bulge for a front end of the charging plug (22), in which the latter is preferably held in a form-fitting manner. [17] Charging insert (10) according to one of the preceding claims, wherein it has the size of a conventional socket insert for installation in flush-mounted or hollow-wall boxes. [18] Charging insert (10) according to one of the preceding claims, wherein the mounting plate (14) has a rectangular, in particular square, outer contour with a central, in particular circular elevation (26) in which the receptacle (20) is formed and preferably also the unlocking device (24) according to one of claims 5 to 13. [19] Charging insert (10) according to one of the preceding claims, wherein the charging cable (38) has a second end, in particular with a connection plug, wherein the second end is led out of the reel (36) on the rear side (18), and which in the mounted state is connected to a charging electronics. [20] Loading insert (10) according to one of the preceding claims, wherein the mounting plate (14) has at least one retaining web on the rear side (18) to which the reel (36) is fastened, wherein in particular two retaining webs are attached, between which the reel (36) is attached. [21] Electrical supply device (2), in particular a power strip or a socket arrangement on a wall or in a piece of furniture, with at least one socket and with a charging device which comprises a charging insert (10) according to the preceding claims. [22] Electrical supply device (2) according to the preceding claim, within which a charging electronics unit is arranged, to which the charging cable (38) of the charging insert (10) is connected. [23] Electrical supply device (2) according to one of the two preceding claims, wherein it has a uniform front side (16) which is formed, for example, by a panel and in which the at least one socket and the charging insert (10) are accommodated.

Images