Charging device

Abstract

The utility model discloses a charging device, which comprises a shell, a first circuit assembly and a second circuit assembly, and is characterized in that the shell is provided with an accommodating cavity; the first circuit assembly is connected with the shell, the first circuit assembly comprises a first circuit board arranged in the accommodating cavity, and a conductive track is arranged on the first circuit board; the second circuit assembly comprises a charging wire at least partially located in the containing cavity, a wire spool arranged in the containing cavity and a conductive part, the wire spool is rotationally connected with the shell, the conductive part is arranged on the wire spool, and the charging wire is electrically connected with the conductive part and wound along the circumferential side of the wire spool; the charging wire can stretch out of the containing cavity and drive the wire spool and the conductive part to rotate relative to the shell, and the conductive part corresponds to the conductive track and makes contact with the conductive track for electric conduction. When the wire spool drives the first circuit board and the conductive part to rotate, the conductive part can move along the conductive track on the first circuit board, so that the conductive part is always in contact with the conductive track and is conductive, and the power supply stability of the charging wire is improved.

Description

Technical Field

[0001] The present application relates to the technical field of charging equipment, and in particular to a charging device. Background Art

[0002] As portable electronic devices (e.g., mobile phones, iPads, laptops, handheld game consoles, etc.) are used more and more frequently in daily life and work, there are more and more charging devices for charging these portable electronic devices. In order to keep the desktop tidy, there are many mobile power products in the related art that can retract and store charging cables. However, since the charging cables in such products are often retracted and moved, it is easy to cause an unstable connection between the charging cables and the circuit board inside the charging device. Utility Model Content

[0003] An embodiment of the present application provides a charging device that can make the electrical connection between a movable charging cable and a first circuit board more stable.

[0004] An embodiment of the present application provides a charging device, comprising:

[0005] A housing having a receiving cavity;

[0006] a first circuit assembly connected to the housing, the first circuit assembly comprising a first circuit board disposed in the accommodating cavity, the first circuit board being provided with a conductive track;

[0007] a second circuit assembly, comprising a charging cable at least partially located in the accommodating cavity, a cable reel disposed in the accommodating cavity, and a conductive member, the cable reel being rotatably connected to the housing, the conductive member being disposed on the cable reel, the charging cable being electrically connected to the conductive member and being wound around a circumference of the cable reel, the charging cable being able to extend out of the accommodating cavity and drive the cable reel and the conductive member to rotate relative to the housing;

[0008] The conductive member is arranged corresponding to the conductive track, and the conductive member contacts and conducts electricity with the conductive track, so as to realize the electrical connection between the charging cable and the first circuit assembly.

[0009] Based on the charging device in the embodiment of the present application, this embodiment directly arranges a conductive member on the winding reel so that the charging cable can be connected to the first circuit board through the conductive member and the conductive track. When the winding reel drives the first circuit board and the conductive member to rotate, the conductive member can move along the conductive track on the first circuit board, thereby always contacting the conductive track and conducting electricity, so that the charging cable can provide power to external electronic devices more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0011] Figure 1 This is a schematic structural diagram of a charging device in one embodiment of the present application;

[0012] Figure 2 This is a schematic diagram of the exploded structure of a charging device in one embodiment of the present application;

[0013] Figure 3 This is a schematic structural diagram of the second circuit component and the first circuit component corresponding to one embodiment of the present application;

[0014] Figure 4 This is a schematic diagram of the exploded structure of the second circuit assembly in one embodiment of the present application;

[0015] Figure 5 This is a schematic structural diagram of a conductive wire and a fixing portion in one embodiment of the present application;

[0016] Figure 6 This is a schematic diagram of the cross-sectional structure of a fixing portion and a portion of a conductive wire in one embodiment of the present application;

[0017] Figure 7 This is a structural diagram of the mounting bracket and the friction member in one embodiment of the present application;

[0018] Figure 8 This is a schematic structural diagram of a friction member, a portion of a mounting bracket, and a winding drum in one embodiment of the present application.

[0019] Reference numerals:

[0020] 1. Charging device;

[0021] 10. Housing;

[0022] 20. First circuit assembly; 21. First circuit board; 211. Conductive track; 22. Conductive wire; 221. First end; 222. Main body; 223. Second end; 23. First connector; 24. Fixing portion; 241. Fixing slot; 2411. First opening; 2412. Second opening; 2413. Third opening; 242. Step structure;

[0023] 30. Second circuit assembly; 31. Cable reel; 32. Charging cable; 33. Conductive member; 331. Conductive contact; 34. Second circuit board; 35. Second connector; 36. Mounting bracket; 361. Mounting slot; 362. First slide slot; 3621. First end portion; 3622. Second end portion; 37. Coil spring; 38. Friction member; 381. Protrusion;

[0024] 40. Battery compartment. DETAILED DESCRIPTION

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the following will be described clearly and completely in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] In the related art, there are many mobile power supply devices that can wind up and store charging cables. Since the charging cables often need to be extended and retracted during use, it is easy for the connection between the charging cables and the circuit board inside the mobile power supply device to become unstable, resulting in unstable voltage output.

[0027] For the above situation, please see Figure 1-Figure 3 The present application provides a charging device 1, comprising a housing 10, a first circuit assembly 20, and a second circuit assembly 30. The housing 10 has a receiving cavity (not shown), in which at least portions of the first circuit assembly 20 and the second circuit assembly 30 are located. The first circuit assembly 20 is connected to the housing 10, and the housing 10 provides installation space and a foundation for the first circuit assembly 20 and the second circuit assembly 30. The charging device 1 can be a mobile power source such as a power bank.

[0028] The second circuit assembly 30 includes a cable reel 31, a charging cable 32, and a conductive member 33. At least a portion of the charging cable 32 is located within the accommodating cavity. The cable reel 31 and the conductive member 33 are disposed within the accommodating cavity. The housing 10 provides mounting space and a base for the cable reel 31 and the conductive member 33. The cable reel 31 is rotatably connected to the housing 10. The conductive member 33 is disposed on the cable reel 31. The charging cable 32 is electrically connected to the conductive member 33 and is wound around the circumference of the cable reel 31. The cable reel 31 provides a base for the charging cable 32. The charging cable 32 can be connected to an external electronic device to provide power to the external electronic device. The housing 10 can be provided with an exit hole for the charging cable 32 to extend from the accommodating cavity. The user can pull the charging cable 32, thereby extending the charging cable 32 from the accommodating cavity and causing the cable reel 31 and the conductive member 33 to rotate relative to the housing 10.

[0029] The first circuit assembly 20 includes a first circuit board 21 disposed in a housing cavity. The housing 10 provides mounting space and a base for the first circuit board 21, thereby facilitating protection of the first circuit board 21. A conductive track 211 is provided on the first circuit board 21. A conductive member 33 is disposed corresponding to the conductive track 211, and the conductive member 33 contacts and conducts electricity with the conductive track 211. The charging cable 32 is electrically connected to the first circuit board 21 via the conductive track 211 and the conductive member 33. When the cable reel 31 and the conductive member 33 rotate, the conductive member 33 can move along the conductive track 211 on the first circuit board 21, thereby maintaining electrical connection with the conductive track 211. This allows the charging cable 32 to provide stable power to external electronic devices, thereby improving the power supply stability of the charging cable 32. For example, the conductive member 33 is made of a conductive metal, and the conductive track 211 is a copper track with good electrical conductivity.

[0030] It should be noted that the second circuit assembly 30 may also include a second circuit board 34, the second circuit board 34 is connected to the winding reel 31, the conductive member 33 is arranged on the second circuit board 34, the charging cable 32 is electrically connected to the conductive member 33 through the second circuit board 34, and the second circuit board 34 can be electrically connected to the first circuit board 21 through the conductive member 33 and the conductive track 211.

[0031] In some embodiments of the present application, Figure 2 As shown, the conductive track 211 is circular, so that the conductive member 33 is always in contact with the conductive track 211 and in a conductive state during the rotation process.

[0032] like Figure 3-Figure 4 As shown, the conductive member 33 includes a plurality of conductive springs, which are arranged at intervals around the axis of the winding drum 31. The conductive springs are in contact with the conductive track 211 for electrical conduction. Specifically, the provision of multiple conductive springs facilitates improving the conductive stability between the conductive springs and the conductive track 211. The conductive springs abut against the conductive track 211, thereby facilitating maintaining contact between the conductive springs and the conductive track 211.

[0033] In some embodiments, the conductive track 211 can be set as a circle, and the conductive member 33 slides along the conductive track 211 and conducts electricity during rotation; or, multiple conductive springs are arranged at intervals around the axis of the winding disk 31, and each conductive spring is provided with multiple conductive contacts 331. The multiple conductive contacts 331 can be arranged at intervals along the radial direction of the winding disk 31, and the circular conductive track 211 is also provided with multiple circles, and the multiple circles of conductive tracks 211 are arranged at intervals along the radial direction of the winding disk 31. Each circle of the conductive track 211 is in contact with the conductive contact 331, thereby further improving the conduction stability between the conductive spring and the conductive track 211.

[0034] In some embodiments, as Figure 2 As shown, the first circuit assembly 20 may further include a conductive body 22 and a first connector 23 located outside the accommodating cavity. The first end 221 of the conductive body 22 may extend into the accommodating cavity and electrically connect to the first circuit board 21. The second end 223 of the conductive body 22 is located outside the accommodating cavity and electrically connects to the first connector 23. The second circuit assembly 30 may further include a second connector 35 located outside the accommodating cavity and electrically connect to the charging cable 32. The charging device 1 may further include a battery compartment 40, which is electrically connected to the first circuit board 21 and / or the second circuit board 34. When the charging device 1 is charging an electronic device such as a mobile phone or computer, the first connector 23 and / or the second connector 35 may be used to connect to an external electronic device to provide power to the external electronic device. Alternatively, the first connector 23 and / or the second connector 35 may be used to connect to an outlet or other power source to charge the battery compartment 40 of the charging device 1. Alternatively, the housing 10 may further include a plug interface to facilitate insertion of an external power plug to charge the battery compartment 40 of the charging device 1.

[0035] See Figure 1-Figure 2 In some embodiments of the present application, a fixing portion 24 is provided on the conductive body 22, and the first connector 23 and the fixing portion 24 are detachably connected. Specifically, the first connector 23 and the fixing portion 24 can be detachably connected by snapping, bonding or magnetic attraction. The first connector 23 and the fixing portion 24 can be connected together or separated by disassembly. When the first connector 23 and the fixing portion 24 are connected together, the first connector 23 is passed through the fixing portion 24, and the conductive body 22 and the fixing portion 24 are jointly arranged to form a closed circle.

[0036] For example, Figure 5 As shown, taking the conductive wire body 22 as an example, which includes a first end 221, a main body 222 and a second end 223 connected in sequence, since the fixing portion 24 is arranged close to the first end 221 of the conductive wire body 22, and the first connector 23 is connected to the second end 223 of the conductive wire body 22, when the first connector 23 is connected to the fixing portion 24, it can be understood that the fixing portion 24 fixes the second end 223 of the conductive wire body 22 to the first end 221, and the main body 222 and the fixing portion 24 cooperate to form a closed circle, so that the main body 222 can be used as a handle to realize the function of hanging the charging device 1 as a whole, thereby allowing the user to carry or store the charging device 1 by hanging the handle, and there is no need to provide an additional handle on the charging device 1.

[0037] For further information, see Figure 5-Figure 6In some embodiments of the present application, the fixing portion 24 has a fixing slot 241, which is arranged along the extension direction of the conductive wire body 22. The opposite ends of the fixing slot 241 have a first opening 2411 and a second opening 2412. The fixing slot 241 is used to accommodate the first connector 23. The first opening 2411 is used for allowing the first connector 23 to enter and exit the fixing slot 241, and the second opening 2412 is used for allowing the conductive wire body 22 to enter and exit the fixing slot 241. That is, the first connector 23 and the conductive wire body 22 can both slide in the fixing slot 241.

[0038] Among them, such as Figure 6 As shown, a step structure 242 is provided on the side wall of the fixing groove 241 , and the step structure 242 is provided close to the second opening 2412 . The step structure 242 is used to engage with the first connector 23 so that the first connector 23 and the fixing portion 24 are relatively fixed.

[0039] Specifically, the second opening 2412 can be formed by a step structure 242. Since the first connector 23 can enter and exit the fixed groove 241 from the first opening 2411, and the first connector 23 will be engaged with the step structure 242, that is, the first connector 23 cannot pass through the second opening 2412, so the diameter of the first opening 2411 is larger than the diameter of the second opening 2412, and the conductive wire 22 can pass through the second opening 2412, so the conductive wire 22 can also pass through the first opening 2411.

[0040] In some implementations, such as Figure 5 As shown, the fixed through slot 241 has a third opening 2413 on the side facing away from the conductive wire body 22, and the first opening 2411, the third opening 2413 and the second opening 2412 are arranged in sequence and connected, and the spacing between the third openings 2413 is smaller than the width of the first connector 23, and the spacing between the third openings 2413 is greater than the width of the conductive wire body 22. That is to say, the first connector 23 cannot enter and exit the fixed through slot 241 through the third opening 2413, and the conductive wire body 22 can enter and exit the fixed through slot 241 through the third opening 2413.

[0041] It can be understood that the first opening 2411 is close to the first end 221 of the conductive wire 22, the first direction L1 is the extension direction from the second opening 2412 toward the first opening 2411, and the second direction L2 is opposite to the first direction, that is, the second direction L2 is the extension direction from the first opening 2411 toward the second opening 2412. When the user needs the first connector 23, that is, the first connector 23 needs to leave the fixed slot 241, the first connector 23 is pushed along the first direction L1 until the first connector 23 completely leaves the fixed slot 241. At this time, the conductive wire 22 is located in the fixed slot 241, and the conductive wire 22 can be detached from the fixed slot 241 through the third opening 2413, so that the conductive wire 22 can be unfolded into a straight line to facilitate the user to use the conductive wire 22 and the first connector 23. Alternatively, when the user has finished use, that is, when the first connector 23 needs to be fixed to the fixed slot 241, the conductive wire body 22 is placed into the fixed slot 241 through the third opening 2413, and then the conductive wire body 22 is pulled along the second direction L2 until the first connector 23 completely enters the fixed slot 241 through the first opening 2411. At this time, the first connector 23 is snap-fitted and fixed to the step structure 242, so that the conductive wire body 22 itself can be surrounded to form a closed loop that can be used as a handle.

[0042] See Figure 4 In some embodiments of the present application, the second circuit assembly 30 further includes a mounting bracket 36 fixedly connected to the housing 10. The mounting bracket 36 has a mounting slot 361. The winding drum 31 is disposed within the mounting slot 361 and is rotatably connected to the mounting bracket 36. The mounting bracket 36 provides installation space and a base for the winding drum 31. The mounting bracket 36 also limits the winding drum 31, preventing it from shifting relative to the housing 10 during rotation, thereby ensuring stable contact between the conductive member 33 and the conductive track 211 on the first circuit board 21. The mounting bracket 36 can be fixedly connected to the housing 10 by screwing, clamping, or bonding, etc., without specific limitation herein.

[0043] For further information, please see Figure 4 In some embodiments of the present application, the second circuit assembly 30 further includes a coil spring 37, one end of the coil spring 37 is connected to the cable drum 31, and the other end of the coil spring 37 is connected to the mounting bracket 36. The coil spring 37 is wound along the circumference of the cable drum 31. It can be understood that when the charging cable 32 is pulled out by an external force, the charging cable 32 can drive the cable drum 31 to rotate relative to the mounting bracket 36 and the housing 10. At the same time, the cable drum 31 drives the coil spring 37 to rotate, so that the coil spring 37 is elastically deformed; after the external force is lost, the charging cable 32 and the cable drum 31 can rotate under the elastic force of the coil spring 37, so as to drive the cable drum 31 to rotate and reset, and wind the charging cable 32 back into the circumference of the cable drum 31.

[0044] In some embodiments, the cable reel 31 includes a winding post, which is rotatably connected to the mounting bracket 36 via the post. The charging cable 32 and the coil spring 37 are both wound around the circumference of the winding post. The cable reel 31 is provided with a mounting slot for mounting the coil spring 37. One end of the coil spring 37 is connected to the cable reel 31, and the other end of the coil spring 37 is connected to the sidewall of the mounting slot. The coil spring 37 and the charging cable 32 are located on opposite sides of the cable reel 31, thereby reducing interference between the charging cable 32 and the coil spring 37 during rotation. In addition, the second circuit assembly 30 also includes a cover body, which is connected to the cable reel 31 and closes the mounting slot to provide protection for the installation of the coil spring 37.

[0045] See Figure 4 and Figure 7 In some embodiments of the present application, the second circuit assembly 30 further includes a friction member 38, which is located between the winding drum 31 and the mounting bracket 36. The friction member 38 is slidably connected to a first mating member, and the friction member 38 abuts against a second mating member. The first mating member is one of the winding drum 31 and the mounting bracket 36, and the second mating member is the other of the winding drum 31 and the mounting bracket 36. Specific embodiments are described in detail below.

[0046] The friction member 38 abuts the second mating member, that is, a compressive force is exerted between the friction member 38 and the second mating member. Therefore, when the charging cable 32 is subjected to external tension and gradually extends out of the accommodating cavity relative to the housing 10, driving the cable reel 31 to rotate in a first rotational direction, a first frictional resistance is exerted between the friction member 38 and the second mating member. When the charging cable 32 gradually retracts into the accommodating cavity relative to the housing 10, driving the cable reel 31 to rotate in a second rotational direction, a second frictional resistance is exerted between the friction member 38 and the second mating member. The first rotational direction is opposite to the second rotational direction, and the first frictional resistance is less than the second frictional resistance. Specifically, the first rotational direction is one of a clockwise direction and a counterclockwise direction, and the second rotational direction is the other of the clockwise direction and the counterclockwise direction.

[0047] It is understood that when the cable drum 31 rotates, frictional resistance is generated between the second mating member and the friction member 38. This frictional resistance can drive the friction member 38 to slide relative to the first mating member, thereby changing the frictional resistance between the second mating member and the friction member 38. Specifically, the second frictional resistance when the charging cable 32 retracts is greater than the first frictional resistance when the charging cable 32 is extended, thereby reducing the speed of the charging cable 32 when retracting. In other words, when the charging cable 32 is extended, the first frictional resistance between the cable drum 31 and the second mating member is smaller, thereby reducing the impact of the second mating member on the rotational speed of the cable drum 31 and the charging cable 32. When the charging cable 32 retracts, the second frictional resistance between the cable drum 31 and the second mating member is larger, thereby reducing the rotational speed of the cable drum 31 and the retraction speed of the charging cable 32.

[0048] For further information, see Figure 7-Figure 8 In some embodiments of the present application, the first mating component is a mounting bracket 36, and the second mating component is a winding drum 31. That is, the winding drum 31 and the mounting bracket 36 may be spaced apart. The friction member 38 is disposed on the mounting bracket 36 and contacts the winding drum 31, generating frictional resistance between the winding drum 31 and the friction member 38 when the winding drum 31 rotates. A first sliding groove 362 is defined on the side of the mounting bracket 36 facing the winding drum 31. The friction member 38 is located in the first sliding groove 362 and can slide relative to the first sliding groove 362. The friction member 38 contacts the winding drum 31. When the winding drum 31 rotates, the friction resistance between the winding drum 31 and the friction member 38 drives the friction member 38 to slide in the first sliding groove 362. The first slide groove 362 provides an installation space for the friction member 38, and the friction member 38 slides in the first slide groove 362. The first slide groove 362 can limit the sliding distance and direction of the friction member 38, thereby reducing displacement and misalignment of the friction member 38 during the sliding process.

[0049] For further information, see Figure 7 In some embodiments of the present application, the first slide groove 362 extends along the first rotation direction of the winding drum 31, so that the sliding trajectory of the friction member 38 is consistent with the rotation direction of the winding drum 31. When the winding drum 31 rotates, the friction member 38 can better slide along the rotation direction of the winding drum 31 through friction resistance, which is beneficial to provide friction resistance for the rotation of the winding drum 31.

[0050] like Figure 8 As shown, the bottom wall of the first chute 362 is inclined, and the bottom wall of the first chute 362 has a first end 221 and a second end 223 that are oppositely arranged. Along the axis of the winding drum 31, the distance from the first end 221 to the winding drum 31 is smaller than the distance from the second end 223 to the winding drum 31. In other words, as shown in FIG. Figure 8As shown in (a), when the friction member 38 is located at the first end 221 of the first chute 362, the friction member 38 is relatively close to the winding drum 31, so the interference between the friction member 38 and the winding drum 31 is large, and the pressure between the friction member 38 and the winding drum 31 is large, thereby generating a large frictional resistance between the friction member 38 and the winding drum 31; Figure 8 As shown in (b), when the friction member 38 is located at the second end 223 of the first slot 362, the friction member 38 is relatively farther from the cable reel 31. Therefore, the interference between the friction member 38 and the cable reel 31 is relatively small, and the pressure between the friction member 38 and the cable reel 31 is relatively small. Consequently, the frictional resistance generated between the friction member 38 and the cable reel 31 is also relatively small. This embodiment limits the height of the friction member 38 within the first slot 362, thereby varying the contact pressure between the friction member 38 and the cable reel 31. This facilitates the friction member 38 providing different frictional resistance for different rotational directions of the cable reel 31. This not only facilitates and saves effort when pulling the charging cable 32 out of the accommodating cavity, but also ensures safer retraction of the charging cable 32.

[0051] Exemplarily, the friction member 38 is a silicone plug, and the length of the friction member 38 is half the length of the first slide groove 362; when the friction member 38 is located at the first end 221 of the first slide groove 362, the interference distance between the friction member 38 and the winding drum 31 is 0.2 mm; when the friction member 38 is located at the second end 223 of the first slide groove 362, the interference distance between the friction member 38 and the winding drum 31 is less than 0.05 mm.

[0052] In some embodiments, a plurality of first slide grooves 362 may be provided on the mounting bracket 36, and the plurality of first slide grooves 362 are spaced apart around the circumference of the axis of the winding drum 31, and a friction member 38 is provided in each first slide groove 362, thereby increasing the friction resistance generated between the friction member 38 and the winding drum 31 when the charging cable 32 retracts, which is beneficial to reducing the speed of the charging cable 32 when it retracts.

[0053] Alternatively, in some embodiments, the first mating component is the winding drum 31, the second mating component is the mounting bracket 36, the friction member 38 is slidably connected to the winding drum 31, and the friction member 38 abuts against the mounting bracket 36. A second chute is defined on the side of the winding drum 31 facing the mounting bracket 36, the friction member 38 is located in the second chute, and the friction member 38 can slide relative to the second chute, abutting against the mounting bracket 36. When the winding drum 31 rotates, the friction member 38 slides in the second chute due to the frictional resistance between the friction member 38 and the mounting bracket 36.

[0054] In some embodiments of the present application, Figure 8As shown, the surface of the friction member 38 facing the second mating member is provided with a plurality of protrusions 381. The plurality of protrusions 381 are arranged along the first rotation direction of the winding drum 31, and the protrusions 381 abut against the second mating member. The plurality of protrusions 381 are arranged at intervals and are arc-shaped, that is, the plurality of protrusions 381 form a wavy friction surface, which helps to increase the friction resistance between the friction member 38 and the second mating member, and facilitates the sliding of the friction member 38 on the first mating member during the rotation of the winding drum 31. Specifically, taking the winding drum 31 as the second mating member and the mounting bracket 36 as the first mating member, the protrusions 381 are located on the surface of the friction member 38 facing the winding drum 31, and the protrusions 381 abut against the winding drum 31.

[0055] In summary, when the cable reel 31 drives the first circuit board 21 and the conductive member 33 to rotate, the conductive member 33 can move along the conductive track 211 on the first circuit board 21, thereby maintaining contact with the conductive track 211 and conducting electricity, allowing the charging cable 32 to more stably power external electronic devices. At the same time, the first end 221 and the second end 223 of the conductive wire 22 are relatively fixed, and the main body 222 of the conductive wire 22 is arranged to form a closed loop, allowing the main body 222 to serve as a handle to hang the charging device 1 as a whole. This allows the user to carry or store the charging device 1 by hanging it on the handle, eliminating the need for a separate handle on the charging device 1. Furthermore, the friction member 38 disposed between the mounting bracket 36 and the cable reel 31 provides frictional resistance to the rotation of the cable reel 31. Furthermore, by limiting the height of the friction member 38 within the chute, the interference between the friction member 38 and the second mating member varies, facilitating the friction member 38 providing varying frictional resistance for different rotational directions of the cable reel 31. When the charging cable 32 is retracting, the secondary frictional resistance between the friction member 38 and the second mating member is greater, thereby slowing the retraction of the charging cable 32 and improving its storage security.

[0056] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0057] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A charging device, characterized in that: include: A housing having a receiving cavity; a first circuit assembly connected to the housing, the first circuit assembly comprising a first circuit board disposed in the accommodating cavity, the first circuit board being provided with a conductive track; a second circuit assembly, comprising a charging cable at least partially located in the accommodating cavity, a cable reel disposed in the accommodating cavity, and a conductive member, the cable reel being rotatably connected to the housing, the conductive member being disposed on the cable reel, the charging cable being electrically connected to the conductive member and being wound around a circumference of the cable reel, the charging cable being able to extend out of the accommodating cavity and drive the cable reel and the conductive member to rotate relative to the housing; The conductive member is arranged corresponding to the conductive track, and the conductive member contacts and conducts electricity with the conductive track, so as to realize the electrical connection between the charging cable and the first circuit assembly.

2. The charging device according to claim 1, characterized in that The conductive track is circular; The conductive member includes a plurality of conductive springs, which are arranged at intervals around the axis of the winding disk, and the conductive springs are in contact with the conductive track for electrical conduction.

3. The charging device according to claim 2, characterized in that Each of the conductive springs is provided with a plurality of conductive contacts, and the plurality of conductive contacts are spaced apart along the radial direction of the winding disk; The conductive track is provided with multiple turns, and the multiple turns of the conductive track are arranged at intervals along the radial direction of the winding disk, and each turn of the conductive track is in contact with the conductive contact for electrical conduction.

4. The charging device according to claim 1, wherein: The first circuit assembly further includes a conductive wire and a first connector located outside the accommodating cavity, wherein a first end of the conductive wire is electrically connected to the first circuit board, and a second end of the conductive wire is electrically connected to the first connector. The conductive wire is provided with a fixing portion, the fixing portion being located near the first end of the conductive wire, and the first connector is detachably connected to the fixing portion. Wherein, when the first connector is connected to the fixing portion, the first connector is passed through the fixing portion, and the conductive wire body and the fixing portion cooperate to form a closed loop.

5. The charging device according to claim 4, characterized in that The fixing portion has a fixing slot, and opposite ends of the fixing slot have a first opening and a second opening. The fixing slot is used to accommodate the first connector, the first opening is used for the first connector to enter and exit the fixing slot, and the second opening is used for the conductive wire to enter and exit the fixing slot. A step structure is provided on the side wall of the fixing through slot, and the step structure is provided close to the second opening. The step structure is used for clamping with the first connector.

6. The charging device according to claim 1, wherein: The second circuit assembly further includes a mounting bracket fixedly connected to the housing, the mounting bracket having a mounting groove, the winding drum being disposed in the mounting groove and rotatably connected to the mounting bracket.

7. The charging device according to claim 6, characterized in that The second circuit assembly further includes a coil spring, one end of which is connected to the winding drum, and the other end of which is connected to the mounting bracket. The coil spring is wound along the circumference of the winding drum, and is used to drive the winding drum to rotate and reset.

8. The charging device according to claim 6, characterized in that The second circuit assembly further includes a friction member, the friction member being located between the winding reel and the mounting bracket, the friction member being slidably connected to a first mating member, and the friction member being in abutment with a second mating member, the first mating member being one of the winding reel and the mounting bracket, and the second mating member being the other of the winding reel and the mounting bracket; When the charging cable drives the cable winding drum to rotate along a first rotation direction, there is a first friction resistance between the friction part and the second matching part. When the charging cable drives the cable winding drum to rotate along a second rotation direction, there is a second friction resistance between the friction part and the second matching part. The first rotation direction is opposite to the second rotation direction, and the first friction resistance is smaller than the second friction resistance.

9. The charging device according to claim 8, characterized in that The first matching part is the mounting bracket, the second matching part is the winding reel, and a first sliding groove is provided on the side of the mounting bracket facing the winding reel. The friction part is located in the first sliding groove, and the friction part is in contact with the winding reel. The winding reel rotates to drive the friction part to slide in the first sliding groove.

10. The charging device according to claim 9, characterized in that The first slide groove extends along the first rotation direction of the winding drum, the bottom wall of the first slide groove is inclined, and the bottom wall of the first slide groove has a first end and a second end that are oppositely arranged. Along the axial centerline direction of the winding drum, the distance from the first end to the winding drum is smaller than the distance from the second end to the winding drum.

11. The charging device according to claim 8, characterized in that A plurality of protrusions are provided on the surface of the friction member facing the second matching member. The plurality of protrusions are arranged along the first rotation direction of the winding reel, and the protrusions are in conflict with the second matching member.

Images