Charging device

Abstract

The utility model relates to the technical field of portable mobile charging equipment, in particular to a charging device, which comprises a main body shell, and a telescopic line assembly and a circuit assembly which are arranged in the main body shell, the circuit assembly comprises a circuit board and an electric connection terminal which is arranged on the circuit board and is electrically connected with the circuit board; the telescopic line assembly comprises a line winding shell, a line winding assembly which is arranged in the line winding shell and is rotationally connected with the line winding shell, and a conductive slip ring which is arranged on the line winding assembly; one end, close to the coiling assembly, of the electric connection terminal is in contact with the conductive slip ring and is electrically connected with the conductive slip ring; when the conductive slip ring rotates along with the coiling assembly, the electric connection terminal and the conductive slip ring keep electric connection fit during relative sliding. The technical problems that a charging device is complex in structure and poor in light weight are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of portable mobile charging devices, and particularly relates to a charging device.

Background Art

[0002] Electronic devices are widely used, and there are more and more portable charging devices adapted to different types of electronic devices in the market. There are also more and more matching chargers. However, the existing charging devices require users to carry data cables by themselves, which affects the user experience. Or, data cables are provided on the existing charging devices, but the storage of the data cables is extremely inconvenient.

[0003] In order to solve the above problems, telescopic data cable assemblies are usually provided on the existing charging devices, and the telescopic data cable assemblies can be electrically connected to the circuit boards built in the charging devices. However, a separate electrical connection structure needs to be provided inside the existing charging devices, and the telescopic data cable assemblies and the circuit boards inside the charging devices are electrically connected through the electrical connection structure. The existence of the electrical connection structure causes the volume of the telescopic data cable assemblies to increase, which is not conducive to the lightweight of the charging devices.

Content of the Utility Model

[0004] In order to solve the technical problems of the existing charging devices equipped with telescopic data cable structures being complex in structure and poor in lightweight, the utility model provides a charging device.

[0005] The solution of the utility model to solve the technical problems is to provide a charging device, which includes a main body housing, and a telescopic cable assembly and a circuit assembly arranged in the main body housing; the circuit assembly includes a circuit board and electrical connection terminals arranged on the circuit board and electrically connected to the circuit board, and the telescopic cable assembly includes a cable winding housing, a cable winding assembly arranged in the cable winding housing and rotatably connected to the cable winding housing, and a conductive slip ring arranged on the cable winding assembly;

[0006] One end of the electrical connection terminal close to the cable winding assembly is in contact with the conductive slip ring and electrically connected to the conductive slip ring; when the conductive slip ring rotates with the cable winding assembly, the electrical connection terminal and the conductive slip ring maintain electrical connection cooperation during relative sliding.

[0007] Preferably, the charging device further includes a power supply, and the circuit assembly is used for being electrically connected to the power supply or maintaining electrical connection cooperation with the conductive slip ring during relative sliding; a circuit interface is arranged on the circuit board, and there is a gap between the circuit interface and the cable winding housing.

[0008] Preferably, the telescopic wire assembly further includes a data wire wound around the rear end of the wire winding assembly and extending out of the main body housing; the wire winding housing is fixedly connected to the side of the circuit board where the electrical connection terminals are provided, and the wire winding housing is provided with a relief channel corresponding to the electrical connection terminals; a set accommodation space is defined in the wire winding housing, the wire winding assembly and the conductive slip ring are both disposed in the accommodation space, and the conductive slip ring is disposed on the side of the wire winding assembly close to the electrical connection terminals, and one end of the electrical connection terminal away from the circuit board passes through the relief channel and contacts the conductive slip ring and is electrically connected to the conductive slip ring.

[0009] Preferably, the cross-sectional area of the relief channel is equal to or smaller than the cross-sectional area of the wire winding housing, and the cross-sectional area of the relief channel is equal to or larger than the cross-sectional area of the electrical connection terminal.

[0010] Preferably, the wire winding housing includes a first housing and a second housing, the first housing and the second housing are detachably connected, and the accommodation space is formed between the first housing and the second housing;

[0011] One side of the first housing away from the second housing is detachably connected to the circuit board, a rotating shaft is provided on the side of the first housing close to the second housing, a limiting groove is provided on the side of the second housing close to the first housing corresponding to the rotating shaft, one end of the rotating shaft away from the first housing passes through the wire winding assembly and is received in the limiting groove, and the wire winding assembly can rotate around the circumferential direction of the rotating shaft.

[0012] Preferably, the wire winding assembly further includes a wire winding disk, a conductive slip ring is provided on the side of the wire winding disk close to the first housing, the conductive slip ring includes a first surface and a second surface, the first surface is electrically connected to one end of the electrical connection terminal away from the circuit board, the two ends of the data wire are respectively an output end and an input end, the data wire is wound around the wire winding disk and its input end is electrically connected to the second surface, and the output end extends out of the main body housing.

[0013] Preferably, the electrical connection terminal is completely received in the relief channel; when the wire winding disk rotates relative to the rotating shaft, one end of the electrical connection terminal away from the circuit board slides on the first surface.

[0014] Preferably, at least part of the electrical connection terminal is received in the relief channel, and there is a gap between the first housing and the circuit board; when the wire winding disk rotates relative to the rotating shaft, one end of the electrical connection terminal away from the circuit board slides on the first surface.

[0015] Preferably, an opening for extending the data line is formed at one end of the main body shell close to the telescopic line assembly, and the direction in which the data line extends out of the shell is parallel to the plane of the circuit board where the conductive slip ring is arranged.

[0016] Preferably, an accommodating groove for accommodating the output end of the data cable is provided at one end of the main body shell where the opening is opened.

[0017] Compared with the prior art, the charging device provided by the present invention has the following advantages:

[0018] 1. The present invention provides a charging device comprising a main body housing, a retractable cord assembly and a circuit assembly disposed within the main body housing; the circuit assembly comprising a circuit board and electrical connection terminals disposed on and electrically connected to the circuit board; the retractable cord assembly comprising a cord housing, a cord assembly disposed within and rotatably connected to the cord housing, and a conductive slip ring disposed on the cord assembly;

[0019] One end of the electrical connection terminal close to the winding assembly contacts the conductive slip ring and is electrically connected to the conductive slip ring; when the conductive slip ring rotates with the winding assembly, the electrical connection terminal and the conductive slip ring maintain electrical connection during relative sliding.

[0020] This embodiment eliminates the need for an electrical connection structure to electrically connect the data cable in the retractable data cable assembly to the circuit board within the charging device, as in the prior art. Instead, the circuit board in the circuit assembly connects directly to the conductive slip ring in the retractable cable assembly via electrical connection terminals, eliminating the need for additional electrical connection structures within the retractable cable assembly. This significantly reduces the thickness and volume of the retractable cable assembly, further contributing to a lighter charging device.

[0021] 2. The retractable wire assembly of the present invention also includes a data cable that is wound around the wire reel assembly and extends out of the main body shell at one end; the wire reel shell is fixedly connected to the side of the circuit board where the electrical connection terminal is provided, and the wire reel shell is provided with a clearance channel corresponding to the electrical connection terminal; an accommodating space is provided in the wire reel shell, and the wire reel assembly and the conductive slip ring are both provided in the accommodating space, and the conductive slip ring is provided on the side of the wire reel assembly close to the electrical connection terminal, and the end of the electrical connection terminal away from the circuit board passes through the clearance channel and contacts the conductive slip ring and is electrically connected to the conductive slip ring. By providing the clearance channel, the end of the electrical connection terminal away from the circuit board directly passes through the clearance channel and contacts the conductive slip ring. The clearance channel can also protect the electrical connection terminal. This prevents the electrical connection terminal from being deformed due to pressure from other electronic components in the main body shell when the charging device is bumped.

[0022] 3. The winding housing of the present invention includes a first housing and a second housing, the first housing and the second housing being detachably connected, and an accommodating space being formed between the first housing and the second housing;

[0023] The first shell is detachably connected to the circuit board on the side away from the second shell. A rotating shaft is provided on the side of the first shell close to the second shell, and a limiting groove is provided on the side of the second shell close to the first shell corresponding to the rotating shaft. The end of the rotating shaft away from the first shell passes through the wire winding assembly and is accommodated in the limiting groove, so that the wire winding assembly can rotate circumferentially around the rotating shaft. The detachability of the first and second shells facilitates user maintenance of the wire winding assembly or conductive slip ring within the wire winding shells. When the wire winding assembly rotates, friction is generated on the rotating shaft, which may cause the first and second shells to shift. The limiting groove is used to limit the rotating shaft to prevent the occurrence of such displacement.

[0024] 4. The cable reel assembly of the present invention also includes a cable reel, which is provided with a conductive slip ring on one side of the cable reel proximate the first housing. The conductive slip ring includes a first surface and a second surface. The first surface is electrically connected to the end of the electrical connection terminal facing away from the circuit board. The data cable has an output end and an input end, respectively. The data cable is wound on the cable reel, with the input end electrically connected to the second surface, and the output end extending out of the main housing. When the conductive slip ring rotates with the cable reel assembly, the electrical connection terminal and the conductive slip ring maintain electrical connection during relative sliding. This means that power provided by the power source is always output sequentially through the circuit board, the electrical connection terminal, the conductive slip ring, the data cable input end, and the data cable output end.

[0025] 5. The electrical connection terminals of the present invention are completely contained within the clearance channel; when the cable reel rotates relative to the rotation axis, the ends of the electrical connection terminals away from the circuit board slide on the first surface. The cable reel housing protects the electrical connection terminals, preventing them from being deformed by pressure from other electronic components within the main housing when the charging device is bumped.

[0026] 6. The main housing of the present invention has an opening at one end near the retractable cable assembly for the data cable to extend out. The direction in which the data cable extends out of the housing is parallel to the plane of the circuit board where the conductive slip ring is located. The data cable is wound around the cable reel assembly. When the direction in which the data cable extends out of the main housing is parallel to the plane of the circuit board, the data cable will not bend or tangle when it is extended out of the main housing.

[0027] 7. The main body housing of the present invention has an opening at one end thereof, which is provided with a receiving groove for accommodating the output end of the data cable. The receiving groove can protect the output end of the data cable and prevent the output end of the data cable from being damaged when the charging device is bumped.

Brief Description of the Drawings

[0028] Figure 1 This is a partial structural explosion of a charging device provided by the embodiment of the utility model Figure 1 .

[0029] Figure 2 It is a structural diagram of part of the structure of a charging device provided by an embodiment of the present utility model.

[0030] Figure 3 It is a structural schematic diagram of a conductive slip ring and electrical connection terminals of a charging device provided by an embodiment of the utility model.

[0031] Figure 4a It is a structural schematic diagram of a first shell of a charging device provided by an embodiment of the present utility model.

[0032] Figure 4b It is a structural schematic diagram of a second shell of a charging device provided by an embodiment of the present utility model.

[0033] Figure 5 It is a structural schematic diagram of a charging device provided by an embodiment of the utility model.

[0034] Figure 6 This is a partial structural explosion of a charging device provided by the embodiment of the utility model Figure 2

[0035] Figure 7 It is a structural schematic diagram of a swing reset member of a charging device provided by an embodiment of the utility model.

[0036] Description of the accompanying drawings:

[0037] 10. Charging device;

[0038] 1. Main body shell; 2. Telescopic wire assembly; 3. Circuit assembly; 4. Digital display module;

[0039] 11. Opening; 12. Receiving slot; 13. Visible area; 14. Main plane; 15. Side plane; 21. Wire winding housing; 22. Wire winding assembly; 23. Conductive slip ring; 24. Data cable; 31. Electrical connection terminal; 32. Circuit board; 33. Circuit interface;

[0040] 211, clearance channel; 212, first housing; 213, second housing; 214, rotating shaft; 215, limiting groove; 221, cable reel; 222, moving gear; 223, locking structure; 231, first surface; 232, second surface; 321, circuit board plane;

[0041] 2221, tooth groove; 2231, spring; 2232, transmission assembly;

[0042] 22321. Limit gear; 22322. Swing reset member; 22323. First fitting unit; 22324. Second fitting unit.

Detailed implementation manners

[0043] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the attached drawings and implementation examples. It should be understood that the specific implementation examples described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0044] It should be noted that the terms "first" and "second" in the description and claims of the present invention are used to distinguish different objects, rather than to describe a specific order.

[0045] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0046] In the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the attached drawings. These terms are mainly used to better describe the present utility model and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0047] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present utility model can be understood according to the specific situation.

[0048] In addition, the terms "installed", "set", "provided with", "connected", "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is also an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific situation.

[0049] An existing charging device usually has a telescopic data cable assembly, and the telescopic data cable assembly can be electrically connected to a circuit board built in the charging device. However, an electrical connection structure needs to be separately provided inside the existing charging device, and through the electrical connection structure, the telescopic data cable assembly is electrically connected to the circuit board inside the charging device. The existence of the electrical connection structure causes the volume of the telescopic data cable assembly to increase, which is not conducive to the lightweight of the charging device.

[0050] To solve the above technical problems, please refer to Figure 1 and Figure 5 In the first embodiment of the present utility model, a charging device 10 is provided. The charging device 10 includes a main body housing 1, a telescopic cable assembly 2 and a circuit assembly 3 provided in the main body housing 1; the circuit assembly 3 includes a circuit board 32 and electrical connection terminals 31 provided on the circuit board 32 and electrically connected to the circuit board 32. The telescopic cable assembly 2 includes a cable winding housing 21, a cable winding assembly 22 provided in the cable winding housing 21 and rotatably connected to the cable winding housing 21, and a conductive slip ring 23 provided on the cable winding assembly 22;

[0051] The electrical connection terminal 31 passes through the cable winding housing 21 and contacts the conductive slip ring 23 and is electrically connected to the conductive slip ring 23; when the conductive slip ring 23 rotates with the cable winding assembly 22, the electrical connection terminal 31 and the conductive slip ring 23 maintain electrical connection cooperation during relative sliding.

[0052] Understandably, the prior art generally requires an additional electrical connection structure to electrically connect the data line 24 in the telescopic data line 24 assembly and the circuit board 32 inside the charging device 10 through the electrical connection structure. In this embodiment, the data line 24 is wound around the winding assembly 22, one end of which is electrically connected to the conductive slip ring 23, and the other end extends out of the main housing 1. When the user wants to supply power to an external electronic device, the end of the data line 24 extending out of the housing can be directly electrically connected to the external electronic device. If there is a distance between the charging device 10 and the electronic device, the user can pull the end of the data line 24 extending out of the housing, forcing the data line 24 wound around the winding assembly 22 to drive the winding assembly to rotate. The winding housing 21 is rotatably connected to the winding assembly 22, that is, after the winding assembly 22 rotates, the winding housing 21 will not rotate with the winding housing 21. As a possible implementation manner, the winding housing 21 is directly fixedly connected to the circuit board 32. As another possible implementation manner, the winding housing 21 and the circuit board 32 are respectively fixedly connected to the main housing 1, that is, the winding housing 21 and the circuit board 32 are indirectly fixed. Further, in this embodiment, the electrical connection terminal 31 passes through the winding housing 21 and contacts the conductive slip ring 23 and is electrically connected to the conductive slip ring 23. When the conductive slip ring 23 rotates with the winding assembly 22, the electrical connection terminal 31 and the conductive slip ring 23 can maintain electrical connection cooperation during relative sliding, that is, when the data line 24 is electrically connected to the external electronic device, during the process of pulling the data line 24 to increase the distance between the charging device 10 and the electronic device, the charging device 10 can always supply power to the electronic device.

[0053] It should be understood that in this embodiment, there is no need to electrically connect the data line 24 in the telescopic data line 24 assembly and the circuit board 32 inside the charging device 10 through an electrical connection structure as in the prior art. The circuit board 32 in the circuit assembly 3 in this embodiment can be directly connected to the conductive slip ring 23 in the telescopic line assembly 2 through the electrical connection terminal 31, without adding an additional electrical connection structure inside the telescopic line assembly 2, greatly reducing the thickness of the telescopic line assembly 2, reducing the volume of the telescopic line assembly 2, and realizing the lightweight of the charging device 10.

[0054] Furthermore, the charging device 10 also includes a power supply. The circuit assembly 3 is used to electrically connect to the power supply or maintain electrical connection with the conductive slip ring 23 during relative sliding. A circuit interface 33 is provided on the circuit board 32, and there is a gap between the circuit interface 33 and the cable reel housing 21. It should be understood that the circuit interface 33 is used to connect to the external data cable 24. The circuit board 32 can be configured as an elongated strip, and there is sufficient space on the elongated circuit board 32 to allow the circuit interface 33 on the circuit board 32 to be separated from the cable reel housing 21. When the external data cable 24 is inserted into the circuit interface 33 to charge the power supply within the charging device 10, the circuit interface 33 will dissipate heat. The presence of the gap prevents the heat from dissipating to the data cable 24 on the cable reel housing 21, thereby preventing the heat from dissipating to the surface of the data cable 24 and causing damage to the surface.

[0055] Furthermore, please combine Figure 1 and Figure 2 The wire winding housing 21 is fixedly connected to the side of the circuit board 32 where the electrical connection terminal 31 is provided, and a clearance channel 211 is opened in the wire winding housing 21 corresponding to the electrical connection terminal 31; an accommodating space is set in the wire winding housing 21, and the wire winding assembly 22 and the conductive slip ring 23 are both arranged in the accommodating space, and the conductive slip ring 23 is arranged on the side of the wire winding assembly 22 close to the electrical connection terminal 31, and the end of the electrical connection terminal 31 away from the circuit board 32 passes through the clearance channel 211 and contacts the conductive slip ring 23 and is electrically connected to the conductive slip ring 23.

[0056] It can be understood that the wire winding housing 21 and the circuit board 32 are fixedly connected, the conductive slip ring 23 is provided on the wire winding assembly 22, and the wire winding assembly 22 is rotatably connected to the wire winding housing 21. In addition to protecting the wire winding assembly 22, the wire winding housing 21 can also protect the conductive slip ring 23. By providing a clearance channel 211, the end of the electrical connection terminal 31 away from the circuit board 32 directly passes through the clearance channel 211 and contacts the conductive slip ring 23. The clearance channel 211 can also protect the electrical connection terminal 31. This avoids the problem that when the charging device 10 is bumped, the electrical connection terminal 31 is compressed by other electronic components in the main housing 1 and deformed.

[0057] Furthermore, the cross-sectional area of the clearance passage 211 is equal to or smaller than the cross-sectional area of the wire winding housing 21 , and the cross-sectional area of the clearance passage 211 is equal to or larger than the cross-sectional area of the electrical connection terminal.

[0058] It should be understood that the clearance channel 211 is used to protect the electrical connection terminal 31 and to allow the electrical connection channel to contact the conductive slip ring 23. For example, if the cross-sectional area of the clearance channel 211 is smaller than the cross-sectional area of the winding housing 21, and the cross-sectional area of the clearance channel 211 is greater than or equal to the cross-sectional area of the conductive slip ring 23. There is a portion of the winding housing 21 blocking the winding assembly 22 and the conductive slip ring 23, so that the winding housing 21 can approach the electrical connection terminal 31 and protect the electrical connection terminal 31. In addition, when the winding assembly 22 rotates relative to the winding housing 21, the winding assembly 22 drives the electrical connection terminal 31 to rotate together, and the electrical connection terminal 31 slides relative to the conductive slip ring 23 when rotating. Since the cross-sectional area of the clearance channel 211 is greater than or equal to the cross-sectional area of the winding housing 21, the winding housing 21 will not hinder the electrical connection terminal 31 from sliding relative to the conductive slip ring 23.

[0059] For example, if the cross-sectional area of the clearance channel 211 is equal to that of the wire housing 21, there is no obstruction from the wire housing 21 between the wire assembly 22 and the conductive slip ring 23. This allows the wire housing 21 to be more lightweight. Furthermore, because the cross-sectional area of the clearance channel 211 is greater than or equal to that of the wire housing 21, the wire housing 21 does not obstruct the sliding movement of the electrical connection terminals 31 relative to the conductive slip ring 23.

[0060] Further, see Figure 2 The winding housing 21 includes a first housing 212 and a second housing 213. The first housing 212 and the second housing 213 are detachably connected. An accommodating space is formed between the first housing 212 and the second housing 213.

[0061] Please combine Figure 4a and Figure 4b The first shell 212 is detachably connected to the circuit board 32 on the side away from the second shell 213. A rotating shaft 214 is provided on the side of the first shell 212 close to the second shell 213. A limiting groove 215 is provided on the side of the second shell 213 close to the first shell 212 corresponding to the rotating shaft 214. The end of the rotating shaft 214 away from the first shell 212 passes through the winding assembly 22 and is accommodated in the limiting groove 215. The winding assembly 22 can rotate around the circumferential direction of the rotating shaft 214.

[0062] Understandably, please combine Figure 1 and Figure 5The first and second housings 212, 213 are removable, making it easier for users to repair the cable assembly 22 or the conductive slip ring 23 within the cable housing 21. When the cable assembly 22 rotates, friction is generated on the rotation shaft 214. This friction may cause displacement between the first and second housings 212, 213. The limiting groove 215 is used to limit the rotation shaft 214 to prevent such displacement. Furthermore, the cable assembly 22 can rotate circumferentially around the rotation shaft 214, allowing the user to pull the data cable 24 out of the main housing 1 with minimal force.

[0063] Furthermore, the cable winding assembly 22 also includes a cable reel 221, and a conductive slip ring 23 is provided on the side of the cable reel 221 close to the first shell 212. The conductive slip ring 23 includes a first surface 231 and a second surface 232. The first surface 231 is electrically connected to the end of the electrical connection terminal 31 away from the circuit board 32. The two ends of the data cable 24 are respectively an output end and an input end. The data cable 24 is wound on the cable reel 221 and its input end is electrically connected to the second surface 232, and the output end extends out of the main shell 1.

[0064] As will be appreciated, the circuit assembly 3 also includes a power supply (not shown) electrically connected to the circuit board 32. When the output end of the data cable 24 is forced to extend further out of the main housing 1, the extension of the data cable 24 drives the winding assembly 22 to rotate. As the winding assembly 22 rotates, the input end of the data cable 24 remains electrically connected to the conductive slip ring 23. The first surface 231 of the conductive slip ring 23 is electrically connected to the end of the electrical connection terminal 31 facing away from the circuit board 32. The circuit board 32 is electrically connected to the electrical connection terminal 31 and the power supply, respectively. Therefore, as the conductive slip ring 23 rotates with the winding assembly 22, the electrical connection terminal 31 and the conductive slip ring 23 maintain electrical connection during relative sliding movement. This means that power from the power supply is always output sequentially through the circuit board 32, the electrical connection terminal 31, the conductive slip ring 23, the input end of the data cable 24, and the output end of the data cable 24. It should be noted that the power supply can also be directly electrically connected to the electrical connection terminal 31, but this will not be discussed in detail here.

[0065] It should be noted that the electrical connection terminal 31 can be a spherical material with conductive ability, or a needle-shaped material with conductive ability. Its specific shape is not limited. In this embodiment, the shape of the electrical connection terminal 31 is diverse. The electrical connection terminal 31 and the conductive slip ring 23 maintain electrical connection during relative sliding without being affected by the shape of the electrical connection terminal 31. Adding any electrical connection structure will result in poor lightweighting of the telescopic wire assembly 2. The clearance channel 211 can protect the electrical connection terminal 31, and there are multiple implementations of the positional relationship between the clearance channel 211 and the electrical connection terminal 31.

[0066] In a possible implementation, the electrical connection terminal 31 is completely received in the relief channel 211; when the winding reel 221 rotates relative to the rotating shaft 214, the end of the electrical connection terminal 31 away from the circuit board 32 slides on the first surface 231. It should be understood that there is no gap between the first housing 212 and the circuit board 32 at this time. The winding housing 21 and the circuit assembly 3 are in an integrated state, which is more aesthetically pleasing. Moreover, since the electrical connection terminal 31 is completely received in the relief channel 211, the winding housing 21 can protect the electrical connection terminal 31, avoiding the problem that the electrical connection terminal 31 is deformed by being pressed by other electronic components in the main housing 1 when the charging device 10 is bumped.

[0067] In another possible implementation, the electrical connection terminal 31 is at least partially received in the relief channel 211, and there is a gap between the first housing 212 and the circuit board 32; when the winding reel 221 rotates relative to the rotating shaft 214, the end of the electrical connection terminal 31 away from the circuit board 32 slides on the first surface 231. It should be understood that there is a gap between the first housing 212 and the circuit board 32 at this time. The winding housing 21 can also protect a partial area of the electrical connection terminal 31, avoiding the problem that the electrical connection terminal 31 is deformed by being pressed by other electronic components in the main housing 1 when the charging device 10 is bumped. Additionally, if the electrical connection terminal 31 is needle-shaped. And if the electrical connection terminal 31 is to be completely received in the relief channel 211, the winding housing 21 will be very thick, which is not conducive to the light weight of the winding housing 21. Therefore, in this implementation, the electrical connection terminal 31 is at least partially received in the relief channel 211, and there is a gap between the first housing 212 and the circuit board 32. This avoids the winding housing 21 being too thick and not being conducive to the light weight of the winding housing 21.

[0068] Further, please refer to Figure 2 and Figure 5 ,

[0069] An opening 11 for the data line 24 to extend out is formed at one end of the main housing 1 close to the telescopic line assembly 2, and the direction in which the data line 24 extends out of the main housing 1 is parallel to the plane where the conductive slip ring 23 is disposed on the circuit board 32.

[0070] Understandably, the set circuit board 32 sets the plane where the conductive slip ring 23 is located as the circuit board plane 321. The main body housing 1 is generally cube-shaped and has two main planes 13 parallel to the circuit board plane 321 and four side planes 14 perpendicular to the circuit board plane 321. Specifically, an opening 11 for the data line 24 to extend out is provided on the side plane 14, so that the direction in which the data line 24 extends out of the main body housing 1 is parallel to the plane where the conductive slip ring 23 is arranged on the circuit board 32. It should be understood that the data line 24 is wound around the winding component 22, and when the direction in which the data line 24 extends out of the main body housing 1 is parallel to the circuit board plane 321, when the data line 24 extends out of the main body housing 1, the data line 24 will not be bent or entangled.

[0071] Furthermore, at one end of the main body housing 1 where the opening 11 is provided, a receiving groove 12 for receiving the output end of the data line 24 is provided. When the data line 24 is wound on the winding component 22, the output end of the data line 24 can be received inside the receiving groove 12, and the receiving groove 12 can protect the output end of the data line 24 to avoid damage to the output end of the data line 24 when the charging device 10 is bumped.

[0072] Furthermore, the charging device 10 further includes a digital display module 4. The digital display module 4 is arranged on the side of the winding housing 21 close to the main body housing 1. The main body housing 1 is provided with a visible area 13 corresponding to the digital display module 4, and the visible area 13 is a visible area 13 made of a transparent material. It should be understood that the digital display module 4 is electrically connected to the circuit board 32, and the digital display module 4 can display status information, such as the remaining power of the charging device 10, etc. The user can observe the status information displayed on the digital display module 4 through the visible area 13, enhancing the user's experience.

[0073] Furthermore, please refer to [[ID= 、 ​ and ​ The winding component 22 further includes a moving gear 222 and a locking structure 223. The moving gear 222 is arranged on the side of the winding disc 221 close to the second housing 213; the locking structure 223 is clamped between the moving gear 222 and the second housing 213 and is detachably connected to the second housing 213; the locking structure 223 includes a spring piece 2231 and a transmission component 2232. The spring piece 2231 is arranged on the same side of the winding disc 221 where the moving gear 222 is arranged. One end of the transmission component 2232 is fixedly connected to the spring piece 2231, and the other end is rotatably connected to the moving gear 222. The rotation of the winding disc 221 drives the moving gear 222 and the transmission component 2232 to move in sequence, thereby driving the spring piece 2231 to generate elastic deformation to provide a pre-tightening force for the transmission component 2232 toward or away from one side of the spring piece 2231.

[0074] It should be understood that by means of the cooperation of the wire reel 221, the moving gear 222 and the locking structure 223, when the data cable 24 wound around the wire reel 221 is pulled out to any length, the locking structure 223 can position the data cable 24. When the user wants to pay out the cable, pulling the data cable 24 can drive the wire reel 221 to rotate, so that the data cable 24 can be pulled out from the wire reel 221. When the user pulls out an appropriate length, the data cable 24 can be directly released. The cooperation of the wire reel 221, the moving gear 222, the transmission component 2232 and the elastic piece 2231 in the locking structure 223 enables the data cable 24 to maintain this length for convenient use, effectively improving the practicability of the telescopic cable assembly 2.

[0075] Further, please also combine ​ , the transmission component 2232 includes a limit gear 22321 and a swing reset member 22322; the swing reset member 22322 is arranged between the moving gear 222 and the elastic piece 2231, and the limit gear 22321 is arranged on the side of the swing reset member 22322 away from the moving gear 222 and is rotatably connected to the swing reset member 22322; the swing reset member 22322 includes a first cooperation unit 22323 cooperating with the limit gear 22321 and a second cooperation unit 22324 cooperating with the moving gear 222; the pre-tightening force provided by the elastic piece 2231 can make the second cooperation unit 22324 move towards the direction close to the moving gear 222. By the elastic deformation of the elastic piece 2231, a pre-tightening force is applied to the swing reset member 22322, so that the swing reset member 22322 has a tendency to swing to one side. When pulling the data cable 24 to drive the wire reel 221 and the moving gear 222 to rotate, the moving gear 222 will drive the swing reset member 22322 to move through the second cooperation unit 22324, so that the swing reset member 22322 drives the limit gear 22321 to rotate through the first cooperation unit 22323. However, due to the existence of the pre-tightening force, the swing reset member 22322 will rebound when it moves a certain distance, and then comes into contact and cooperation with the tooth groove 2221 of the limit gear 22321 again. The functions of positioning and contraction can be realized by cooperating with different tooth grooves 2221 on the limit gear 22321. It can be seen that the design of using the pre-tightening force provided by the elastic piece 2231 to make the swing reset member 22322 rebound makes the structure of the telescopic cable assembly 2 simpler.

[0076] Further, the moving gear 222 is provided with tooth grooves 2221 corresponding to the second fitting unit 22324. There are at least three such tooth grooves 2221. The pre-tightening force provided by the elastic piece 2231 enables the second fitting unit 22324 to cooperate with the tooth grooves 2221, so that the output end of the data line 24 stops retracting into the main body housing 1. Through the cooperation between the tooth grooves 2221 and the second fitting unit 22324, on the one hand, the moving gear 222 can drive the swing reset member 22322 to swing. On the other hand, when the swing reset member 22322 moves a certain distance, it can slide out of the tooth groove 2221 and rebound through the pre-tightening force. Thus, the first fitting unit 22323 contacts and cooperates with the tooth groove 2221 of the limit gear 22321 again, so that the data line 24 stops retracting and is timely locked. At least three tooth grooves 2221 can ensure that when the moving gear 222 rotates, the swing reset member 22322 will not be in a stationary state without cooperating with the tooth groove 2221 for a long time, thus avoiding the situation where the cable cannot be timely locked. It can be seen that the design of the cooperation between the second fitting member and the tooth groove 2221 makes the structure of the telescopic wire assembly 2 more reasonable and the use smoother.

[0077] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A charging device, characterized in that: The charging device includes a main body housing, a telescopic wire assembly and a circuit assembly disposed within the main body housing; the circuit assembly includes a circuit board and electrical connection terminals disposed on the circuit board and electrically connected to the circuit board, and the telescopic wire assembly includes a wire winding housing, a wire winding assembly rotatably connected to the wire winding housing within the wire winding housing, and a conductive slip ring disposed on the wire winding assembly; One end of the electrical connection terminal close to the wire winding assembly contacts the conductive slip ring and is electrically connected to the conductive slip ring; when the conductive slip ring rotates with the wire winding assembly, the electrical connection terminal and the conductive slip ring maintain electrical connection cooperation during relative sliding.

2. The charging device according to claim 1, wherein: The charging device further includes a power source, and the circuit assembly is used to be electrically connected to the power source or maintain electrical connection cooperation with the conductive slip ring during relative sliding; a circuit interface is provided on the circuit board, and there is a gap between the circuit interface and the wire winding housing.

3. The charging device according to claim 1, wherein: The telescopic wire assembly further includes a data cable wound around the wire winding assembly and having one end extending out of the main body housing; the wire winding housing is fixedly connected to the side of the circuit board where the electrical connection terminals are provided, and the wire winding housing is provided with a relief channel corresponding to the electrical connection terminals; a set accommodation space is defined within the wire winding housing, and both the wire winding assembly and the conductive slip ring are disposed within the accommodation space, and the conductive slip ring is disposed on the side of the wire winding assembly close to the electrical connection terminals, and the end of the electrical connection terminal away from the circuit board passes through the relief channel to contact the conductive slip ring and is electrically connected to the conductive slip ring.

4. The charging device according to claim 3, characterized in that: The cross-sectional area of the relief channel is equal to or smaller than the cross-sectional area of the wire winding housing, and the cross-sectional area of the relief channel is equal to or larger than the cross-sectional area of the electrical connection terminal.

5. The charging device according to claim 3, wherein: The wire winding housing includes a first housing and a second housing, and the first housing and the second housing are detachably connected, and the accommodation space is formed between the first housing and the second housing; One side of the first housing away from the second housing is detachably connected to the circuit board, a rotating shaft is provided on one side of the first housing close to the second housing, a limiting groove is provided on the side of the second housing close to the first housing corresponding to the rotating shaft, and the end of the rotating shaft away from the first housing passes through the wire winding assembly and is received within the limiting groove, and the wire winding assembly can rotate around the circumferential direction of the rotating shaft.

6. The charging device according to claim 5, wherein: The wire winding assembly further includes a wire winding disc, a conductive slip ring is provided on one side of the wire winding disc close to the first housing, the conductive slip ring includes a first surface and a second surface, the first surface is electrically connected to the end of the electrical connection terminal away from the circuit board, the two ends of the data cable are respectively an output end and an input end, the data cable is wound around the wire winding disc and its input end is electrically connected to the second surface, and the output end extends out of the main body housing.

7. The charging device according to claim 6, wherein: The electrical connection terminal is completely received within the relief channel; when the wire winding disc rotates relative to the rotating shaft, the end of the electrical connection terminal away from the circuit board slides on the first surface.

8. The charging device according to claim 6, wherein: The electrical connection terminal is at least partially received in the relief channel, and there is a gap between the first housing and the circuit board; when the winding reel rotates relative to the rotating shaft, the end of the electrical connection terminal away from the circuit board slides on the first surface.

9. The charging device according to claim 6, wherein: An opening for the data cable to extend out is formed at one end of the main housing close to the telescopic cable assembly, and the direction in which the data cable extends out of the housing is parallel to the plane where the conductive slip ring is arranged on the circuit board.

10. The charging device according to claim 6, wherein: A receiving groove for receiving the output end of the data cable is provided at one end of the main housing where the opening is formed.

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