Power supply device with retractable charging cable and electrical device with the power supply device

Abstract

A power supply device with a retractable charging cable, comprising a housing, a main circuit board (2), an output data cable (3), and a mounting base (4) being arranged inside the housing, the main circuit board (2) being electrically connected to the input power supply, the mounting base (4) comprising a take-up reel (43) for winding the output data cable, the take-up reel (43) being arranged inside the housing so as to be circumferentially rotatable and axially fixed, an elastic return structure (4331) being provided between the take-up reel (43) and the output data cable, and the housing being provided with an output hole (12), one end of the output data cable being connected to the main circuit board (2) and the other end passing through the output hole (12).

Description

[0001] The present invention relates to the field of household appliances and, more particularly, to a power supply device with a retractable charging cable and an electrical appliance having the power supply device.

[0002] The various electrical power supply and charging devices on the current market, such as table lamps, power banks, charging heads, and on-board chargers, vary in their application scenarios but generally have limitations in their functional design. Most of these devices require external AC power adapters to perform a single basic function. For example, table lamps primarily serve as lighting, power banks provide emergency power for mobile use, charging heads provide AC / DC conversion, and on-board chargers are limited to in-car charging. They cannot fully meet the power consumption requirements of users in different scenarios and with different devices in terms of interface configuration, cable management, and function expansion. In short, these devices generally have a limited number of interfaces or a uniform type.When users need to charge multiple external smart devices such as mobile phones, laptops, tablets, etc. at the same time, they often rely on additional devices such as external power strips, which not only increases the user's usage cost, but also easily leads to cable clutter and device accumulation in limited areas such as office desks and car interiors, seriously affecting the cleanliness and usage efficiency of the space and posing safety risks.

[0003] The object of the present invention is to provide a power supply device with a retractable charging cable that can charge an external smart terminal without using an external power strip and keeps the cable tidy.

[0004] A power supply device with a retractable charging cable comprises a housing, wherein a main circuit board, an output data cable and a mounting base are arranged inside the housing, wherein the main circuit board is electrically connected to the input power supply, the mounting base comprises a take-up spool for winding the output data cable, the take-up spool is arranged circumferentially rotatable and axially fixed inside the housing, an elastic return structure is provided between the take-up spool and the output data cable and the housing is provided with an exit hole, wherein one end of the output data cable is connected to the main circuit board and the other end passes through the exit hole.

[0005] By adopting the above-mentioned technical solution, the input power supply supplies power to the main circuit board, the main circuit board supplies power to the output data cable, and the output data cable supplies power to the external intelligent terminal. The take-up reel arrangement allows the user to pull out the output data cable for use, and the elastic recovery structure and take-up reel serve to retract it into the housing when needed.

[0006] Preferably, the mounting base comprises a detachable, fixedly connected upper housing part and a lower housing part, wherein a receiving cavity is formed between the upper housing part and the lower housing part and the take-up reel is arranged in the receiving cavity, which is rotatable in the circumferential direction and fixedly connected in the axial direction to the upper housing part and / or the lower housing part.

[0007] Preferably, the upper housing part or the lower housing part is connected to a sub-circuit board and the sub-circuit board is located in the receiving cavity, the sub-circuit board being electrically connected to the main circuit board and the output data cable being electrically connected to the sub-circuit board.

[0008] By adopting the above-mentioned technical solution, the output data cable is fixed in the receiving cavity. When the output data cable extends from the output hole or is retracted into the receiving cavity, it neither gets tangled in the housing nor disconnects from the take-up reel, ensuring stable and reliable extension and retraction of the output data cable.

[0009] Preferably, the take-up reel comprises a flat portion, a support portion having an opening, and a flat, coil-shaped elastic portion, wherein the elastic portion is placed in the opening of the support portion, and the outer free end of the elastic portion is formed as an elastic structure, and the output data cable is in contact with the elastic structure when wound on the support portion.

[0010] Preferably, the support section comprises a first arc segment and a second arc segment, a first gap and a second gap are formed between the first arc segment and the second arc segment, the outer free end of the elastic section protrudes from the first gap and is bent back over the first arc segment and the second gap and inserted into the opening of the support section, the outer free end of the elastic section is arranged protruding in the vicinity of the first gap and in the direction of the output data cable and forms an elastic return structure, wherein the elastic return structure is in contact with the output data cable.

[0011] By adopting the above-mentioned technical solution, the elastic section sits stably and reliably in the opening of the support section and does not slip when the output data cable is extended or retracted. At the same time, the elastic return structure enables the output data cable to be retracted quickly and stably into the mounting base.

[0012] Preferably, the flat portion is provided with a through-hole, wherein the second arc segment is provided with a third arc segment on the side facing away from the elastic portion, wherein the second arc segment and the third arc segment are located on both sides of the through-hole, wherein one end of the output data cable is arranged between the second arc segment and the third arc segment and is passed through the through-hole and is electrically connected to the sub-circuit board.

[0013] With the technical solution described above, if the end of the output data cable is not constrained in the housing and is almost completely pulled out of the output hole, the output data cable may slip or slide when pulled out, and the second and third arc segments constrain the end of the output data cable in the housing to ensure that the output data cable remains clean and tidy when pulled in.

[0014] Preferably, at least two mounting bases are provided, each mounting base being provided with an output data cable and the number of output holes, mounting bases and output data cables being the same.

[0015] By adopting the above technical solution, different output data cables can have different connectors, such as a USB port, a Type-C port and a Lightning port, thus facilitating the charging of smart terminals with different interfaces and improving the functionality of the power supply device.

[0016] Preferably, the surface of the housing of the device is provided with a locking portion for embedding an end of the output data cable protruding from the output hole.

[0017] By adopting the above technical solution, the end of the output data cable exposed outside the housing can be embedded into the snap-in section when the output data cable is not needed, which can protect the output data cable on the one hand and reduce the space occupied by the power supply device on the other.

[0018] Preferably, the device housing is further equipped with a wireless charging module of external smart terminals, wherein the device housing is provided with a housing attachment opening, the wireless charging module is arranged between the housing and the attachment base, the wireless charging module comprises a wireless charging housing and a wireless charging circuit unit arranged in the wireless charging housing, and the wireless charging housing is inserted into the housing attachment opening.

[0019] By adopting the above-mentioned technical solution, a wireless charging module is added to the case, allowing wireless charging of smart devices such as mobile phones, smartwatches, and smart rings. A power supply device can offer multiple charging modes and charge various devices simultaneously, further enhancing the functionality of the power supply device.

[0020] The object of the present invention is to provide an electrical appliance having one of the above-mentioned power supply devices with a retractable charging cable that can charge an external smart terminal via the power supply device while performing its own basic functions without the need for an external power strip, and that keeps the cables tidy, thereby improving the practicality of the table lamp.

[0021] An electrical device comprising a device body and a power supply device arranged in the device body, wherein the device body is a table lamp, a mobile power supply, a power adapter or an on-board charger and the power supply device is one of the power supply devices described in claims 1 to 9.

[0022] By adopting the above-mentioned technical solutions, the practicality of various electrical appliances will be greatly improved and other smart devices can also be powered when the products are in use. Fig. 1 shows a schematic structural diagram of the first embodiment of a power supply device with a retractable charging cable. Fig. 2 shows a schematic internal structure diagram of the first embodiment of a power supply device with a retractable charging cable. Fig. 3 shows a schematic internal structure diagram of the first embodiment of a power supply device with a retractable charging cable. Fig. 4 shows a schematic structural decomposition of the first embodiment of a power supply device with a retractable charging cable. Fig. 5 shows a schematic structural decomposition of the first embodiment of a power supply device with a retractable charging cable. Fig. 6 shows a schematic structural decomposition of the first embodiment of a power supply device with a retractable charging cable. Fig. 7 shows a schematic structural decomposition of the first embodiment of a power supply device with a retractable charging cable. Fig. 8 shows a schematic structural diagram of a take-up reel. Fig. 9 shows a schematic structural diagram of the second embodiment of a power supply device with a retractable charging cable. Fig. 10 shows a schematic structural diagram of the second embodiment of a power supply device with a retractable charging cable. Fig. 11 shows a schematic structural diagram of a table lamp of the power supply device with a retractable charging cable. Fig. 12 shows a schematic structural diagram of a table lamp of the power supply device with a retractable charging cable. Fig. 13 shows a schematic structural diagram of a mobile power supply of the power supply device with a retractable charging cable. Fig. 14 shows a disassembled view of a mobile power supply of the power supply device with a retractable charging cable. Fig. 15 shows a schematic structural diagram of a power adapter of the power supply device with a retractable charging cable. Fig. 16 shows a disassembled view of a power adapter with a retractable charging cable. Fig. 17 shows a schematic structural diagram of another power adapter of the power supply device with a retractable charging cable. Fig. 18 shows a disassembled view of another power adapter of the power supply device with a retractable charging cable. Fig. 19 shows a schematic structural diagram of an on-board charger of the power supply device with a retractable charging cable. Fig. 20 shows a disassembled view of an on-board charger of the power supply device with a retractable charging cable.

[0023] The present invention will be described below in connection with the Fig. 1 to 12 are described in more detail. Example I

[0024] As in the Fig. 1 to 8, a power supply device with a retractable charging cable includes a device housing 1, the device housing 1 includes an upper shell and a lower shell, the upper shell and the lower shell form a power supply device cavity, and a main circuit board 2, an output data cable 3, and a mounting base 4 are arranged in the power supply device cavity.

[0025] The mounting base 4 comprises an upper housing part 41, a lower housing part 42 and a take-up reel 43m. The upper housing part 41 and the lower housing part 42 are detachably and firmly connected to one another (detachable, fixed connection here means a connection in the form of a screw connection, snap connection, plug connection, etc., ie in the connected state the connection is firm, but the upper housing part 41 and the lower housing part 42 can be loosened and separated).

[0026] A receiving cavity is formed between the upper housing part 41 and the lower housing part 42, the take-up reel 43 is arranged in the receiving cavity, and a sub-circuit board 44 is also arranged between the take-up reel 43 and the upper housing part 41 and between the take-up reel 43 and the lower housing part 42. The main circuit board 2 is electrically connected to the input power supply, the sub-circuit board 44 is electrically connected to the main circuit board 2, and the output data cable 3 is electrically connected to the sub-circuit board 44.It should be noted that the main circuit board 2 and the sub-circuit board 44 may actually be a single circuit board, or in other words, the output data cable 3 may be directly electrically connected to the main circuit board 2, but when the two circuit boards are arranged separately, the sub-circuit board 44 may be installed in the mounting base 4 to facilitate the electrical connection between the output data cable 3 and the sub-circuit board 44. At the same time, when multiple mounting bases 4 are arranged, a problem with the circuit in a particular mounting base 4 will not affect the electrical connection with other data cables in other mounting bases 4.

[0027] It should be noted that the power supply can be provided via an external power supply or via a battery 45 which is electrically connected to the main circuit board 2 and is also located in the device housing 11. The battery 45 draws power from the outside and thus supplies the main circuit board 2 and / or the sub-circuit board 44 with power. The power supply device is preferably equipped with a power supply line which is connected to the external power supply, and at the same time the battery 45 is accommodated in the device housing 1 so that it can also supply the external intelligent terminal with power in the event of a power failure.The device housing 1 is provided with a charging port 11 electrically connected to the battery 45, wherein the charging port 11 may refer here to an input interface for charging the battery 45 or an output interface for the battery 45 for charging an external terminal, or both.

[0028] The take-up spool 43 includes a flat portion 431, a support portion with an opening 432, and a flat, coil-shaped elastic portion 433. The flat portion 431 serves as a bottom support for the output data cable 3 after it has been circularly wound, the support portion 432 provides central support to the output data cable 3 after winding, and the elastic portion 433 is mainly configured to provide a restoring force for the output data cable 3 when it is pulled into the mounting base 4.

[0029] The take-up spool 43 is arranged in the receiving cavity, which is rotatable in the circumferential direction and fixed in the axial direction with the upper housing part 41 and / or the lower housing part 42. In particular, a connecting rotary shaft 46 can be inserted between the take-up spool 43 and the upper housing part 41 and / or the lower housing part 42, and the center gap of the take-up spool 43 is placed or translated onto the connecting rotary shaft 46, and the connecting rotary shaft 46 is fixedly connected to the upper housing part 41 and the lower housing part 42. It should be noted that a connecting bearing can also be mounted on the surface of the connecting rotary shaft 46, which is rotatable in the circumferential direction and fixed in the axial direction, the connecting rotary shaft 46 is fixedly connected to the upper housing part 41 and / or the lower housing part 42, and the bearing is fixedly connected to the take-up spool 43.To save costs, the bearing can also be omitted.

[0030] The support section 432 comprises a first arc segment 4321 and a second arc segment 4322. A first gap 4323 and a second gap 4324 are formed between the first arc segment 4321 and the second arc segment 4322. The outer free end of the elastic section 433 protrudes from the first gap 4323 and is bent back over the first arc segment 4321 and the second gap 4324 and inserted into the opening of the support section 432. The elastic section 433 is placed in the opening of the support section 432, and the outer free end of the elastic section 433 is arranged as an elastic recovery structure. The output data cable 3 is in contact with the elastic structure when the output data cable 3 is wound around the support section 432.Preferably, the part of the elastic portion 433 bent back and placed in the opening of the support portion 432 is in contact with the inner wall of the first arc segment 4321, which enables the insertion and removal of the output data cable 3 by frequent pulling over a long period of time and also ensures that the elastic portion 433 is stably and reliably seated in the support portion 432 and does not shift, wherein the outer free end of the elastic portion 433 protrudes near the first gap 4323 and to the side of the output data cable 3 and forms an elastic return structure 4331 that is in contact with the output data cable 3.It should be noted that the elastic return structure 4331 may be the outer free end of the entire elastic portion 433, and it is preferable that a part of the outer free end of the elastic portion 433 is fixed to the first arc segment 4321 and a part forms the elastic return structure 4331 in order to consider the installation stability of the elastic portion 433 and to ensure reliable function when resetting the output data cable 3.

[0031] The device body 1 is provided with an output hole 12. One end of the output data cable 3 is electrically connected to the main circuit board 2 via the sub-circuit board 44. The middle end is wound with an opening on the support portion 432 and partially contacts the elastic recovery structure 4331 of the elastic portion 433. The other end passes through the output hole 12 for the user to pull out and use it to charge the smart terminal. That is, the input power supply supplies power to the main circuit board 2, the main circuit board 2 supplies power to the output data cable 3, and the output data cable 3 supplies power to the external smart terminal. The arrangement of the take-up reel 43 allows the user to pull out and use the output data cable 3.When necessary, the elastic return structure 4331 and the take-up reel 43 are used to retract them into the device housing 1.

[0032] The surface of the device housing 1 is provided with a locking portion 13 for embedding one end of the output data cable 3 protruding from the output hole 12. When the output data cable 3 is not used, the end of the output data cable 3 visible outside the device housing 1 can be embedded in the locking portion 13, thereby protecting the output data cable 3 and reducing the space occupied by the power supply device.

[0033] The flat portion 431 is provided with a through-hole 4311, and the second arc segment 4322 is provided with a third arc segment 4325 on the side facing away from the elastic portion 433. The second arc segment 4322 and the third arc segment 4325 are located on both sides of the through-hole 4311. One end of the output data cable 3 is arranged between the second arc segment 4322 and the third arc segment 4325 and is passed through the through-hole 4311 and is electrically connected to the sub-circuit board 44. Preferably, the second arc segment 4322 and the third arc segment 4325 are firmly connected to one another at one end of the through-hole 4311, and a gap is formed between the two at the other end to accommodate the output data cable 3.If the output data cable 3 is almost completely pulled out of the output hole 12 and the end of the output data cable 3 is not restricted in the device housing 1, it may be lost or tangled during retraction. The second arc segment 4322 and the third arc segment 4325 can restrict the end of the output data cable 3 in the device housing 1, so that the output data cable 3 remains neat and tidy when retracted into the device housing 1. Example II

[0034] Different from the first embodiment, at least two mounting bases 4 are provided, each mounting base 4 is equipped with an output data cable 3, the number of output holes 12 of the mounting bases 4 and the output data lines 3 is the same, and different output data cables 3 may have different connectors, such as USB connectors, Type-C connectors, and Lightning connectors, to facilitate charging of smart terminals with different interfaces and improve the practicability of the power supply device. Example III

[0035] As in the Fig. As shown in Figures 9-10, the device housing 1, in contrast to the first embodiment, has a housing mounting opening 14. A wireless charging module 5 for wirelessly charging an external smart terminal (such as a mobile phone, smartwatch, smart ring, or other electronic product) is embedded in this opening. The wireless charging module 5 consists of a housing 51 and a wireless charging circuit located therein. The housing 51 is embedded in the housing mounting opening 14 and can be flush, lower, or higher than the surface of the device housing 1.

[0036] Wireless charging is a relatively mature technology, and the wireless charging module 5 can be implemented using commercially available wireless charging structures and circuits. The core of the invention lies in the integration of the wireless charging module 5 into the power supply, not in the innovation of the wireless charging module 5. Therefore, the structure and circuitry of the wireless charging module 5 are not described in detail here. Commercially available wireless charging structures and corresponding wireless charging circuits can be used. Example IV

[0037] As in the Fig. 11-12, Example 4 includes an electrical device having a device body and a power supply device disposed therein, as described in Example 1, Example 2, or Example 3. The power supply device can improve the functionality of the device body. In this embodiment, the device body is a table lamp 52 having a wireless charging circuit unit 6 composed of a lighting head 61 and a connecting rod 62. The lower end of the connecting rod 62 is connected to the device housing 1, and the lighting head 61 is mounted on the upper end of the connecting rod 62 and electrically connected to the power supply device. In use, the table lamp 52 having the wireless charging circuit unit 6 can be charged via the power adapter with a retractable charging cable.This eliminates the need for an external power strip and keeps the cables clean and tidy, increasing the practicality of the table lamp 52 with wireless charging circuit unit 6. Example V

[0038] As in the Fig. 13 to 14, the difference from Embodiment IV is that the device body in Embodiment V is a mobile power supply 7. Specifically, the mobile power supply 7 is equipped with a battery 45 and a charge / discharge management circuit, the battery 45 being electrically connected to the main circuit board 2, the charge / discharge management circuit being integrated into the main circuit board 2, and protecting the battery 45 from overcharging, over-discharging, and short circuiting. This embodiment integrates a power supply into the mobile power supply 7, so that the mobile power supply 7 can charge external smart terminals via the power supply with a retractable charging cable, eliminating the need to carry additional cables and keeping the cables neatly stored. In addition, the battery 45 serves as an input power source for the mobile power supply.This allows the mobile power supply to charge external smart devices via the battery 45 without the need for an external power strip, which further increases the practicality of the mobile power supply 7.

[0039] In addition, the side of the device body 1 of this embodiment is provided with a charging port 11 electrically connected to the main circuit board 2, wherein the charging port 11 is a Type-C port and a USB port, whereby the mobile power supply 7 can charge and discharge the battery 45 via external data cables connected to the Type-C and USB ports, thus maintaining the basic functionality of the mobile power supply 7. Example VI

[0040] As in Fig. 15 and Fig. 16, the difference from Embodiment IV and Embodiment V is that the device body of Embodiment VI is a power adapter 8.Specifically, the power adapter 8 includes a connector 81 on the outside of the device body 1, an AC converter module integrated on the main circuit board 2, and the above-mentioned power supply device. The power adapter 8 can be connected to an external power source via the connector 81, and the AC converter module converts the incoming AC power into DC power, which can be used as input power for the power supply device. Thus, the power adapter 8 of this embodiment can charge an external smart terminal directly via the above-mentioned power supply device with a retractable charging cable, thereby eliminating the need to carry additional cables and keeping the cables neatly stored, thus increasing the functionality of the power adapter 8. Example VII

[0041] As in the Fig. 17 and Fig. 18, the power adapter 8 in Embodiment VII differs from Embodiment VI in that it additionally includes a charging port 11, wherein the charging port 11 is a Type-C interface and a USB interface, wherein both the Type-C interface and the USB interface are integrated on the main circuit board 2 and pass through the device housing 1, whereby the power adapter 8 can supply power to external smart terminals via external data cables at the Type-C and USB interfaces, which further increases the functionality of the power adapter 8. Example VIII

[0042] As in the Fig. 19 and Fig.As shown in Figure 20, the device body of Embodiment VIII differs from Embodiments IV, V, VI, and VII in that the device body of Embodiment VIII is an on-board charger 9 that can be connected to a vehicle's cigarette lighter to charge smart devices such as mobile phones. Specifically, the on-board charger 9 of this embodiment includes the aforementioned power supply device and a cigarette lighter plug 91 disposed outside the device housing 1 and electrically connected to the main circuit board 2 of the power supply device. The main circuit board 2 is equipped with a voltage conversion circuit. The on-board charger 9 can be connected to the vehicle's cigarette lighter via the cigarette lighter plug 91. The voltage conversion circuit converts the vehicle voltage to 5V / 9V / 15V.which serves as the input voltage for the power supply device, allowing the on-board charger 9 to charge external smart devices directly via the power supply device using a retractable charging cable, eliminating the need to carry additional cables, solving the problem of cable clutter caused by long conventional car charging cables, and ensuring clean and tidy cable routing inside the vehicle, thus improving the functionality of the on-board charger 9.

[0043] Furthermore, the on-board charger 9 of this embodiment is equipped with a charging port 11 including both a Type-C and a USB interface, wherein both the Type-C and the USB interface are integrated on the main circuit board 2, whereby the on-board charger 9 can be powered via an external data cable connected to the Type-C and USB interfaces, which further increases the practicability of the on-board charger 9 of this embodiment.

[0044] In summary, the embodiments IV to VIII present solutions for the use of power supply devices with retractable charging cables in various electrical devices. Their core approach is to integrate power supply devices with retractable charging cables and thus combine the charging needs of multiple devices with clear cable routing, which overcomes the technical problems of conventional electrical devices that suffer from individual functions and are impractical for cross-scenario use. List of reference symbols 1 device housing 11 Charging port 12 Exit hole 13 Snap-in section 14 Housing mounting connection 2 Main circuit board 3 output data cables 4 mounting bases 41 Upper housing part 42 Lower housing part 43 Take-up spool 431 Flat section 4311 Through hole 432 support section 4321 First arch segment 4322 Second arch segment 4323 First gap 4324 Second gap 4325 Third arch segment 433 Elastic section 4331 Elastic recovery structure 44 Sub-circuit board 45 Battery 46 Connecting rotary shaft 5 Wireless charging module 51 wireless charging cases 52 Circuit unit for wireless charging 6 table lamp 61 Lamp head 62 connecting rod 7 Mobile power supply 8 power adapters 81 connectors 9 On-board charger 91 cigarette lighter plug

Claims

[1] A power supply device with a retractable charging cable, comprising a housing, a main circuit board (2), an output data cable (3) and a mounting base (4) being arranged inside the housing, the main circuit board (2) being electrically connected to the input power supply, the mounting base (4) comprising a take-up reel (43) for winding the output data cable, the take-up reel (43) being arranged inside the housing so as to be rotatable in the circumferential direction and fixed in the axial direction, an elastic return structure (4331) being provided between the take-up reel (43) and the output data cable, and the housing being provided with an output hole (12), one end of the output data cable being connected to the main circuit board (2) and the other end passing through the output hole (12). [2] Power supply device with a retractable charging cable according to claim 1, characterized bythat the mounting base (4) comprises a detachable, firmly connected upper housing part and a lower housing part, wherein a receiving cavity is formed between the upper housing part and the lower housing part and in the receiving cavity the take-up reel (43) is arranged, which is rotatable in the circumferential direction and firmly connected in the axial direction to the upper housing part and / or the lower housing part. [3] Power supply device with a retractable charging cable according to claim 2, characterized by that the upper housing part or the lower housing part is connected to a sub-circuit board (44) and the sub-circuit board (44) is located in the receiving cavity, wherein the sub-circuit board (44) is electrically connected to the main circuit board (2) and the output data cable (3) is electrically connected to the sub-circuit board (44). [4] Power supply device with a retractable charging cable according to claim 3, characterized bythat: the take-up reel (43) comprises a flat portion, a support portion (432) having an opening, and a flat, coil-shaped elastic portion, wherein the elastic portion is placed in the opening of the support portion and the outer free end of the elastic portion is formed as an elastic structure, and the output data cable (3) is in contact with the elastic structure when wound onto the support portion (432). [5] Power supply device with a retractable charging cable according to claim 4, characterized byin that the support section (432) comprises a first arc segment (4321) and a second arc segment (4322), a first gap (4323) and a second gap (4324) are formed between the first arc segment and the second arc segment, the outer free end of the elastic section protrudes from the first gap and is bent back over the first arc segment and the second gap and inserted into the opening of the support section, the outer free end of the elastic section is arranged protruding in the vicinity of the first gap and in the direction of the output data cable and forms an elastic return structure (4331), wherein the elastic return structure (4331) is in contact with the output data cable. [6] Power supply device with a retractable charging cable according to one of claims 4 or 5, characterized byin that the flat section is provided with a through-hole (4311), wherein the second arc segment is provided with a third arc segment on the side facing away from the elastic section, wherein the second arc segment and the third arc segment are located on both sides of the through-hole (4311), wherein one end of the output data cable is arranged between the second arc segment and the third arc segment and is passed through the through-hole (4311) and is electrically connected to the sub-circuit board (44). [7] Power supply device with a retractable charging cable according to one of the preceding claims, characterized by that at least two mounting bases (4) are provided, each mounting base (4) being provided with an output data cable and the number of output holes, mounting base (4) and output data cable being the same. [8] Power supply device with a retractable charging cable according to one of the preceding claims, characterized by that the surface of the housing of the device is provided with a locking portion (13) for embedding one end of the output data cable protruding from the output hole (12). [9] Power supply device with a retractable charging cable according to one of the preceding claims, characterized by in that the device housing (1) is further equipped with a wireless charging module for external intelligent terminals, wherein the device housing (1) is provided with a housing attachment opening, the wireless charging module is arranged between the housing and the attachment base, the wireless charging module comprises a wireless charging housing and a wireless charging circuit unit (52) arranged in the wireless charging housing (51), and the wireless charging housing (51) is inserted into the housing attachment opening. [10] An electrical device comprising a device body and a power supply device arranged in the device body, wherein the device body is a table lamp (6), a mobile power supply, a power adapter (8) or an on-board charger (9), and the power supply device is one of the power supply devices described in claims 1 to 9.

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