Charging device

Abstract

The utility model discloses a charging device, which comprises a shell, a wire spool, a charging assembly and a friction piece, and is characterized in that the shell comprises a base; the wire spool is arranged on the base, the wire spool is rotationally connected with the base, and the wire spool rotates relative to a first axis of the base; the charging assembly comprises a charging wire, a power connection plug and a coil spring, the first end of the charging wire and the first end of the coil spring are both connected with the wire spool, the second end of the charging wire is electrically connected with the power connection plug, the second end of the coil spring is connected with the base, and the charging wire and the coil spring are both wound along the circumferential side of the wire spool; a friction piece is arranged between the base and the wire spool and abuts against the wire spool and the base. The friction piece is arranged between the base and the wire spool, and the friction piece can provide friction resistance for rotation of the wire spool, so that the relative rotation speed between the wire spool and the base is reduced, the speed of the charging wire which is driven by the coil spring to retract into the wire spool is reduced, and the storage safety of the charging wire is improved.

Description

Technical Field

[0001] The present application relates to the technical field of charging cable storage, 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 cables used to charge these portable electronic devices. In order to make the desktop tidy, there are many products in the related technology that automatically store charging cables. When storing, such products will automatically pull the charging cables back into the storage cavity. The cable collection speed is too fast, and users are easily hit by the metal head or the appearance of the product is scratched when using it. Utility Model Content

[0003] The embodiment of the present application provides a charging device that can reduce the recovery speed of the charging cable and improve safety.

[0004] The present application embodiment provides a charging device, including:

[0005] A housing, including a base;

[0006] A wire winding drum is arranged on the base, the wire winding drum is rotatably connected to the base, and the wire winding drum rotates relative to a first axis of the base;

[0007] A charging assembly, comprising a charging cable, an electrical plug and a coil spring, wherein a first end of the charging cable and a first end of the coil spring are both connected to the cable winding drum, a second end of the charging cable is electrically connected to the electrical plug, a second end of the coil spring is connected to the base, and the charging cable and the coil spring are both wound along the circumference of the cable winding drum;

[0008] Wherein, a friction member is arranged between the base and the winding drum, and the friction member is in conflict with the winding drum and the base.

[0009] The beneficial effects of the embodiments of the present application are as follows: when the charging cable drives the cable winding reel to rotate, since a friction member is provided between the base and the cable winding reel, the friction member provides friction resistance for the rotation of the cable winding reel, thereby reducing the relative rotation speed between the cable winding reel and the base, thereby slowing down the speed at which the charging cable is retracted into the cable winding reel driven by the winding spring, thereby improving the storage safety of the charging cable. 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative work.

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

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

[0013] Figure 3 This is a schematic diagram of the exploded structure of a charging device in one embodiment of the present application;

[0014] Figure 4 This is a schematic cross-sectional structure diagram of a base, a winding disc and a friction member in one embodiment of the present application;

[0015] Figure 5 This is a schematic cross-sectional structure diagram of a base, a winding disc and a friction member in another embodiment of the present application;

[0016] Figure 6 This is a schematic cross-sectional structure diagram of a base, a winding disc and a friction member in one embodiment of the present application;

[0017] Figure 7 This is a schematic cross-sectional structure diagram of a base, a winding disc and a friction member after being assembled in one embodiment of the present application;

[0018] Figure 8 This is a schematic diagram of the structure of the base and the friction member in one embodiment of the present application;

[0019] Fig. 9 This is a schematic diagram of the structure of the base and the friction member in one embodiment of the present application;

[0020] Fig.10 Schematic diagram of the structure of the winding drum in one embodiment of the present application.

[0021] Reference numerals:

[0022] 1. Charging device;

[0023] 10. Shell; 11. Base; 111. First slide groove; 112. First end; 113. Second end; 114. Placement groove; 115. Through hole; 116. Second slide groove; 12. First cover; 13. Second cover;

[0024] 20. winding drum; 21. winding column; 22. winding space; 23. first side surface; 24. abutment portion;

[0025] 30. Charging assembly; 31. Charging cable; 32. Power plug; 33. Coil spring;

[0026] 40. friction member; 41. protrusion;

[0027] 50. output structure; 51. first conductive member; 52. second conductive member;

[0028] 61, first locking member; 611, hooking portion; 62, second locking member; 621, hooking groove;

[0029] L1, first axis. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] In the related art, there are many products of cable reel boxes that automatically store charging cables. Since most of the automatic cable reel boxes achieve cable reeling through the stress of a coil spring, the cable reeling speed of such a cable reel box is too fast when automatically reeling in the cable. For example, when the user does not pay attention to the cable reeling process during use, the charging cable is quickly pulled back by the cable reel box. Due to the large impact force of the pulling back, the user may be easily dented by the charging head or the appearance of the product may be scratched.

[0032] For the above situation, please see Figure 1-Figure 3 The present application proposes a charging device 1, which includes a housing 10, a winding reel 20, a charging assembly 30 and a friction member 40.

[0033] The shell 10 includes a base 11; the winding drum 20 is arranged on the base 11, and the base 11 provides an installation basis for the winding drum 20. The winding drum 20 is rotatably connected to the base 11. The winding drum 20 can rotate relative to the first axis L1 of the base 11. The base 11 and the winding drum 20 can both be cylindrical, and the base 11 can also be a square column. The first axis L1 is the central axis of the base 11.

[0034] The charging assembly 30 includes a charging cable 31, an electrical plug 32, and a coil spring 33. The first end of the charging cable 31 and the first end of the coil spring 33 are both connected to the cable reel 20, the second end of the charging cable 31 is electrically connected to the electrical plug 32, the second end of the coil spring 33 is connected to the base 11, and the charging cable 31 and the coil spring 33 are both wound along the circumference of the cable reel 20. The cable reel 20 has a winding space 22, and the charging cable 31 is wound in the winding space 22 to provide storage and protection for the charging cable 31. The second end of the charging cable 31 can be stretched out of the winding space 22 by an external force, and at this time, the charging cable 31 can drive the cable reel 20 to rotate relative to the base 11, and at the same time, the cable reel 20 drives the coil spring 33 to rotate, so that the coil spring 33 is elastically deformed; after the external force is lost, the charging cable 31 and the cable reel 20 can rotate under the elastic force of the coil spring 33, and the charging cable 31 is wound and reset to the winding space 22.

[0035] In this embodiment, a cable winding drum 20 is provided on the base 11, and the rotation of the charging cable 31 can drive the cable winding drum 20 to rotate, that is, the cable winding drum 20 can move synchronously with the charging cable 31, so the cable winding drum 20 and the charging cable 31 can be relatively still, and the side wall of the cable winding drum 20 can provide more sufficient limiting for the charging cable 31, so that the cable winding drum 20 can better provide storage space and protection for the charging cable 31, thereby reducing the entanglement of the charging cable 31 during rotation.

[0036] Among them, Figure 4 As shown, a friction member 40 is provided between the base 11 and the winding drum 20, and the friction member 40 is in contact with the winding drum 20 and the base 11, so that when the winding drum 20 rotates relative to the base 11, the friction member 40 can provide friction resistance, thereby reducing the relative rotation speed between the winding drum 20 and the base 11.

[0037] Exemplarily, the base 11 and the winding drum 20 can be spaced apart, the friction member 40 is disposed on the base 11, and the friction member 40 contacts the winding drum 20, and the winding drum 20 generates friction resistance with the friction member 40 when rotating, or the friction member 40 is disposed on the winding drum 20, and the friction member 40 contacts the base 11, and the winding drum 20 drives the friction member 40 to rotate when rotating, so that the friction member 40 and the base 11 generate friction resistance; for example, an installation groove is opened on the base 11, and the friction member 40 is disposed in the installation groove.

[0038] It should be noted that the stretching of the charging cable 31 can drive the cable reel 20 to rotate, and then the cable reel 20 drives the coil spring 33 to rotate and causes the coil spring 33 to produce elastic deformation. The elastic force of the coil spring 33 can drive the cable reel 20 and the charging cable 31 to rotate in the opposite direction, that is, the charging cable 31 is retracted and stored in the cable reel 20. When the charging cable 31 drives the cable reel 20 to rotate, since a friction member 40 is provided between the base 11 and the cable reel 20, the friction member 40 will provide friction resistance for the rotation of the cable reel 20, thereby reducing the relative rotation speed between the cable reel 20 and the base 11, thereby slowing down the speed of the charging cable 31 when it is retracted into the cable reel 20 driven by the coil spring 33, thereby improving the storage safety of the charging cable 31.

[0039] like Figure 3 As shown, the shell 10 also includes a first cover body 12, which together with the base 11 form a accommodating cavity (not shown in the figure), and the first cover body 12 is provided with a wire outlet (not shown in the figure) connected to the accommodating cavity, the wire winding reel 20 and the charging cable 31 are located in the accommodating cavity, and the power plug 32 is located outside the accommodating cavity, and the second end of the charging cable 31 passes through the wire outlet and is connected to the power plug 32.

[0040] Specifically, the accommodating cavity can provide an installation space for the cable reel 20, the cable winding space 22 of the cable reel 20 is connected to the accommodating cavity, and the cable outlet is used for the charging cable 31 to extend out of the accommodating cavity and be electrically connected to the power plug 32 to connect to the external device. The charging cable 31 can be pulled out of the cable winding space 22 of the cable reel 20 from the position of the cable outlet by an external force. After the external force is lost, the charging cable 31 can retract and return to the cable winding space 22 under the elastic force of the coil spring 33. Among them, the first cover body 12 and the base 11 are detachably connected to facilitate the adjustment or maintenance of the cable reel 20 and the charging cable 31 in the accommodating cavity; the coil spring 33 can be arranged in the accommodating cavity or outside the accommodating cavity, and this embodiment does not limit this.

[0041] It should be noted that the cable reel 20 may include a winding post 21, the charging cable 31 and the coil spring 33 are both wound around the circumference of the winding post 21, a positioning post is provided on the first cover body 12, the winding post 21 is sleeved on the positioning post and is rotatably connected to the positioning post, the positioning post provides a setting basis for the rotation of the cable reel 20, and the central axis of the winding post 21 and the positioning post coincides with the first axis line L1 of the base 11.

[0042] Furthermore, if Figure 3As shown, in some embodiments of the present application, the charging component 30 also includes an output structure 50, which is located on the side of the cable winding reel 20 away from the base 11, and the output structure 50 includes a first conductive member 51 and a second conductive member 52. The first conductive member 51 is located in the accommodating cavity, and the first conductive member 51 is arranged on the surface of the cable winding reel 20 facing the first cover body 12, and is electrically connected to the charging cable 31; the second conductive member 52 is arranged on the surface of the first cover body 12 facing the cable winding reel 20, and the second conductive member 52 is arranged opposite to the first conductive member 51 and is electrically connected.

[0043] Specifically, the first conductive member 51 may be a conductive disk, and the second conductive member 52 may be a conductive contact. There are multiple conductive contacts, and the multiple conductive contacts are arranged along the diameter direction of the conductive disk. When the winding disk 20 drives the first conductive member 51 to rotate, the second conductive member 52 can always contact with the first conductive member 51 and conduct electricity to provide stable power supply for external electronic devices. The second conductive member 52 may also include an output line electrically connected to the conductive contact, and the output line extends out of the first cover 12 to be electrically connected to the external electronic device.

[0044] Exemplarily, the winding drum 20 is provided with a positioning bolt and a buckle, a positioning hole is opened on the first conductive member 51, the positioning bolt on the winding drum 20 passes through the positioning hole, and the buckle is buckled with the edge of the first conductive member 51 to fix the first conductive member 51 on the winding drum 20. The second conductive member 52 can also be fixed to the first cover 12 by means of snap connection, screw connection or bonding, which is not specifically limited here.

[0045] It should be noted that the output structure 50 can be used to connect an external power source or an electronic device. For example, the output structure 50 also includes a first plug. When the charging device 1 charges an electronic device such as a mobile phone or a computer, the power plug 32 is connected to the mobile phone or the computer, and the first plug is connected to a socket or other power source to charge the mobile phone or the computer. For another example, the charging device 1 is arranged on an electrical device, such as a television, a refrigerator, a washing machine, etc. The output structure 50 also includes an electrical connection line, which is directly electrically connected to the electrical device, and the power plug 32 is connected to a socket or other power source to power the electrical device.

[0046] See also Figure 2-Figure 3 In some embodiments of the present application, the cable reel 20 includes a cable winding post 21, and the charging cable 31 and the coil spring 33 are both wound along the circumference of the cable winding post 21; a placement groove 114 is provided on the side of the base 11 away from the cable reel 20, and a through hole 115 is provided on the base 11 that passes through the base 11, and the through hole 115 is connected to the placement groove 114, and the coil spring 33 is located in the placement groove 114, and the second end of the coil spring 33 is connected to the side wall of the placement groove 114, and the cable winding post 21 passes through the through hole 115 and is connected to the first end of the coil spring 33.

[0047] Specifically, the winding drum 20 and the coil spring 33 are respectively located on opposite sides of the base 11, the winding post 21 passes through the base 11 through the through hole 115, the charging cable 31 is connected to the upper part of the winding post 21 above the base 11, and the coil spring 33 is connected to the lower part of the winding post 21 below the base 11, thereby reducing the interference between the winding drum 20 and the coil spring 33 when rotating. The lower part of the winding post 21 has an opening, and the first end of the coil spring 33 is inserted into the opening and fixed to the winding post 21.

[0048] Furthermore, if Figure 3 As shown, the housing 10 further includes a second cover 13 , which is connected to the base 11 , and the second cover 13 closes the placement slot 114 to provide protection for the installation of the coil spring 33 .

[0049] In some embodiments of the present application, the friction member 40 is slidably connected to the first mating member, and the friction member 40 is in conflict with the second mating member. The first mating member is one of the base 11 and the winding reel 20, and the second mating member is the other of the base 11 and the winding reel 20. The specific embodiments are described in detail below.

[0050] When the charging cable 31 stretches and drives the cable reel 20 to rotate along the first rotation direction, there is a first friction resistance between the friction member 40 and the second matching member. When the charging cable 31 retracts and drives the cable reel 20 to rotate along the second rotation direction, there is a second friction resistance between the friction member 40 and the second matching member. The first rotation direction is opposite to the second rotation direction, and the first friction resistance is smaller than the second friction resistance.

[0051] Specifically, the first rotation direction is one of the clockwise direction and the counterclockwise direction, and the second rotation direction is the other of the clockwise direction and the counterclockwise direction. Taking the first rotation direction as the clockwise direction and the second rotation direction as the counterclockwise direction as an example, when the second end of the charging cable 31 is stretched by an external force, the charging cable 31 can drive the cable winding drum 20 to rotate in the clockwise direction. At this time, the cable winding drum 20 can also drive the first end of the coil spring 33 to rotate in the clockwise direction, thereby causing the coil spring 33 to produce elastic deformation; when the second end of the charging cable 31 loses the external force, the cable winding drum 20 can be reset under the elastic force of the coil spring 33, that is, the cable winding drum 20 rotates in the counterclockwise direction. At this time, the cable winding drum 20 can also drive the first end of the charging cable 31 to rotate in the counterclockwise direction, thereby retracting the charging cable 31 into the cable winding drum 20.

[0052] When the cable drum 20 rotates, there is friction resistance between the cable drum 20 and the friction member 40, and the second friction resistance when the charging cable 31 retracts is greater than the first friction resistance when the charging cable 31 is stretched, thereby making the speed of the charging cable 31 smaller when it retracts. Specifically, when the charging cable 31 is stretched, the first friction resistance between the cable drum 20 and the friction member 40 is smaller, thereby reducing the influence of the friction member 40 on the rotation speed of the cable drum 20 and the charging cable 31; when the charging cable 31 retracts, the second friction resistance between the cable drum 20 and the friction member 40 is larger, thereby reducing the rotation speed of the cable drum 20 and slowing down the retraction speed of the charging cable 31.

[0053] See also Figure 4 In some embodiments of the present application, the first matching member is the base 11, the second matching member is the winding drum 20, the friction member 40 is slidably connected to the base 11, and the friction member 40 contacts the winding drum 20. A first slide groove 111 is provided on the side of the base 11 facing the winding drum 20, the friction member 40 is located in the first slide groove 111, and the friction member 40 can slide relative to the first slide groove 111, the friction member 40 contacts the winding drum 20, and when the winding drum 20 rotates, the winding drum 20 drives the friction member 40 to slide in the first slide groove 111 through the friction resistance between the friction member 40 and the friction member 40. The first slide groove 111 provides an installation space for the friction member 40, and the friction member 40 slides in the first slide groove 111. The first slide groove 111 can limit the sliding distance and direction of the friction member 40, and reduce the displacement and dislocation of the friction member 40 during the sliding process.

[0054] For further information, see Figure 6-Figure 8 In some embodiments of the present application, the first slide groove 111 extends along the first rotation direction of the winding drum 20, so that the sliding trajectory of the friction member 40 is consistent with the rotation direction of the winding drum 20. When the winding drum 20 rotates, the friction member 40 can better slide along the rotation direction of the winding drum 20 through friction resistance, which is beneficial to provide friction resistance for the rotation of the winding drum 20.

[0055] like Figure 6-Figure 7As shown, the bottom wall of the first slide groove 111 is inclined, and the bottom wall of the first slide groove 111 has a first end 112 and a second end 113 that are arranged opposite to each other. Along the direction of the first axis L1, the distance from the first end 112 to the winding drum 20 is smaller than the distance from the second end 113 to the winding drum 20. That is to say, when the friction member 40 is located at the first end 112 of the first slide groove 111, the friction member 40 is closer to the winding drum 20, so the friction area between the friction member 40 and the winding drum 20 is larger. Moreover, the pressure between the friction member 40 and the cable drum 20 is relatively large, so the friction resistance generated between the friction member 40 and the cable drum 20 is also relatively large. When the friction member 40 is located at the second end 113 of the first slide groove 111, the friction member 40 is relatively farther from the cable drum 20, so the contact area between the friction member 40 and the cable drum 20 is relatively small, and the pressure between the friction member 40 and the cable drum 20 is relatively small, so the friction resistance generated between the friction member 40 and the cable drum 20 is also relatively small. In this embodiment, the height of the position of the friction member 40 in the first slide groove 111 is limited, so that the contact pressure between the friction member 40 and the cable drum 20 is different, which is conducive to the friction member 40 providing different friction resistances for different rotation directions of the cable drum 20, thereby not only making the extension of the charging cable 31 convenient and labor-saving, but also making the retraction of the charging cable 31 safer.

[0056] Among them, Figure 8 As shown, a plurality of first slide grooves 111 may be provided on the base 11, and the plurality of first slide grooves 111 are spaced apart around the circumference of the first axis L1, and a friction member 40 is provided in each first slide groove 111, thereby increasing the friction resistance generated between the friction member 40 and the winding drum 20 when the charging cable 31 is retracted, which is beneficial to reducing the speed of the charging cable 31 when it is retracted.

[0057] It should be noted that if Figure 4 As shown, the side of the winding drum 20 facing the base 11 is a first side surface 23, and the first side surface 23 is spaced apart from the base 11, so as to facilitate the rotation of the winding drum 20. An abutment portion 24 is provided on the first side surface 23, and the abutment portion 24 is circular or annular, protruding from the first side surface 23, and the abutment portion 24 abuts against the friction member 40 on the base 11, so as to generate friction resistance when the winding drum 20 rotates.

[0058] Alternatively, see Figure 5In some embodiments of the present application, the first matching member is the winding drum 20, the second matching member is the base 11, the friction member 40 is slidably connected to the winding drum 20, and the friction member 40 contacts the base 11. The winding drum 20 is provided with a second slide groove 116 on the side facing the base 11, the friction member 40 is located in the second slide groove 116, and the friction member 40 can slide relative to the second slide groove 116, the friction member 40 contacts the base 11, and when the winding drum 20 rotates, the friction member 40 is driven to slide in the second slide groove 116 by the friction resistance between the winding drum 20 and the friction member 40.

[0059] Among them, the second slide groove 116 provides installation space for the friction member 40, and the friction member 40 slides in the second slide groove 116. The second slide groove 116 can limit the sliding distance and direction of the friction member 40, and reduce the displacement and misalignment of the friction member 40 during the sliding process. At the same time, the friction member 40 is arranged on the winding drum 20, and the winding drum 20 is subjected to the second friction resistance when rotating along the second rotation direction. The implementation method of the second friction resistance being larger is similar to the implementation method of the second friction resistance being larger in the above-mentioned embodiment, which is also by limiting the height of the position of the friction member 40 in the second slide groove 116, so that the resistance pressure between the friction member 40 and the base 11 is different, which is conducive to the friction member 40 providing different friction resistances for different rotation directions of the winding drum 20.

[0060] For further information, see Figure 8 In some embodiments of the present application, a plurality of protrusions 41 are provided on the surface of the friction member 40 facing the second matching member, and the plurality of protrusions 41 are arranged along the first rotation direction of the winding drum 20, and the protrusions 41 are in conflict with the second matching member. Among them, the plurality of protrusions 41 are arranged at intervals, and the protrusions 41 are arc-shaped, that is, the plurality of protrusions 41 form a wavy friction surface, which is conducive to increasing the friction resistance between the friction member 40 and the second matching member, and facilitates the winding drum 20 to drive the friction member 40 to slide on the second matching member when rotating. Specifically, taking the winding drum 20 as the second matching member and the base 11 as an example, the protrusions 41 are located on the surface of the friction member 40 facing the winding drum 20, and the protrusions 41 are in conflict with the abutment portion 24 of the winding drum 20.

[0061] See also Figure 9-10 In some embodiments of the present application, the charging device 1 further includes a locking assembly, which includes a first locking member 61 and a second locking member 62 , wherein the first locking member 61 is disposed on the base 11 , and the second locking member 62 is disposed on the first side 23 of the winding reel 20 .

[0062] Among them, the first locking component 41 is rotatably connected to the base 11, and the first locking component 61 is slidably connected to the winding reel 20. When the first locking component 41 slides relatively with the winding reel 20, the first locking component 41 can also swing relative to the base 11. This embodiment does not limit the specific swing angle of the first locking component 41 relative to the base 11.

[0063] Specifically, when the wire reel 20 rotates, the wire reel 20 drives the second locking member 42 to rotate, and the wire reel 20 and the first locking member 61 slide relative to each other. The rotation trajectory of the second locking member 62 has a locking position and an unlocking position arranged in sequence. When the second locking member 62 rotates to the locking position, the first locking member 41 can rotate with the base 11, that is, the first locking member 41 swings relative to the base 11. At this time, the first locking member 61 and the second locking member 62 are locked. The first locking member 41 and the second locking member 62 are locked to achieve the locking of the cable reel 20 and the base 11. At this time, the charging cable 31 is locked and cannot be pulled out from the cable reel 20. When the second locking member 62 is rotated to the unlocking position, the first locking member 41 can rotate with the base 11 again, that is, the first locking member 41 swings relative to the base 11 again. At this time, the first locking member 61 and the second locking member 62 are unlocked to achieve the unlocking and rotation of the cable reel 20 and the base 11. At this time, the charging cable 31 can be pulled out from the cable reel.

[0064] Exemplarily, the first locking member 61 includes a hooking portion 611, and a hooking groove 621 is provided on the second locking member 62. When the second locking member 62 is in the locked position, the hooking portion 611 is hooked in the hooking groove 621, and the charging cable 31 and the coil spring 33 cannot be pulled out of the cable reel 20, so as to achieve the locking of the cable reel 20 and the base 11. When the second locking member 62 slides from the locked position to the unlocked position, the hooking portion 611 is separated from the hooking groove 621, and the charging cable 31 is retracted into the cable reel 20 under the elastic force of the coil spring 33, so as to achieve the unlocking and rotation of the cable reel 20 and the base 11. The locking and unlocking of the hooking portion 611 and the hooking groove 621 are convenient and quick, making the use of the locking assembly more convenient.

[0065] In summary, since the friction member 40 is provided between the base 11 and the cable reel 20, the friction member 40 will provide friction resistance for the rotation of the cable reel 20. At the same time, by limiting the height of the friction member 40 in the slide groove, the friction pressure between the friction member 40 and the second matching member is different, which is conducive to the friction member 40 providing different friction resistance for different rotation directions of the cable reel 20. When the charging cable 31 is stretched, the charging cable 31 drives the cable reel 20 to rotate. At this time, the first friction resistance between the friction member 40 and the second matching member is small, thereby reducing the influence of the friction member 40 on the rotation speed of the cable reel 20 and the charging cable 31; when the charging cable 31 is retracted, the elastic force of the coil spring 33 can drive the cable reel 20 to rotate in the opposite direction. At this time, the second friction resistance between the friction member 40 and the second matching member is large, thereby reducing the speed of the reverse rotation of the cable reel 20, and slowing down the retraction speed of the charging cable 31, thereby improving the storage safety of the charging cable 31.

[0066] 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 "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it 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.

[0067] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A charging device, characterized in that: include: A housing, including a base; A wire winding drum is arranged on the base, the wire winding drum is rotatably connected to the base, and the wire winding drum rotates relative to a first axis of the base; A charging assembly, comprising a charging cable, an electrical plug and a coil spring, wherein a first end of the charging cable and a first end of the coil spring are both connected to the cable winding drum, a second end of the charging cable is electrically connected to the electrical plug, a second end of the coil spring is connected to the base, and the charging cable and the coil spring are both wound along the circumference of the cable winding drum; Wherein, a friction member is arranged between the base and the winding drum, and the friction member is in conflict with the winding drum and the base.

2. The charging device according to claim 1, characterized in that: The friction member is slidably connected with a first matching member, and the friction member is in conflict with a second matching member, the first matching member is one of the base and the winding disk, and the second matching member is the other of the base and the winding disk; When the charging cable is stretched and 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 is retracted and 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.

3. The charging device according to claim 2, characterized in that: The first matching part is the base, the second matching part is the winding drum, the base is provided with a first slide groove on a side facing the winding drum, the friction part is located in the first slide groove, and the friction part is in contact with the winding drum, and the winding drum rotates to drive the friction part to slide in the first slide groove.

4. The charging device according to claim 3, 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, and along the direction of the first axis, the distance from the first end to the winding drum is smaller than the distance from the second end to the winding drum.

5. The charging device according to claim 2, characterized in that: The first matching part is the winding drum, and the second matching part is the base. The winding drum is provided with a second slide groove on one side facing the base. The friction part is located in the second slide groove. The friction part is in contact with the base. The winding drum rotates to drive the friction part to slide in the second slide groove.

6. The charging device according to claim 2, characterized in that: A plurality of protrusions are arranged 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 disk, and the protrusions are in conflict with the second matching member.

7. The charging device according to claim 1, characterized in that: The housing further comprises: The first cover body is combined with the base to form a accommodating cavity, and the first cover body is provided with a wire outlet connected to the accommodating cavity, the wire winding reel and the charging wire are located in the accommodating cavity, the power plug is located outside the accommodating cavity, and the second end of the charging wire passes through the wire outlet and is connected to the power plug.

8. The charging device according to claim 7, characterized in that: The charging assembly further includes an output structure, which is located on a side of the cable winding reel away from the base, and includes: A first conductive member is located in the accommodating cavity, the first conductive member is disposed on a surface of the cable winding drum facing the first cover body, and is electrically connected to the charging cable; The second conductive member is connected to the surface of the first cover body facing the winding disk, and the second conductive member is in conductive contact with the first conductive member.

9. The charging device according to claim 1, characterized in that: The winding reel comprises a winding post, and the charging cable and the coil spring are both wound along the circumference of the winding post; A placement groove is provided on the side of the base facing away from the winding reel, and a through hole is opened on the base and penetrates the base, the through hole is communicated with the placement groove, the coil spring is located in the placement groove, the second end of the coil spring is connected to the side wall of the placement groove, the winding post passes through the through hole and is connected to the first end of the coil spring.

10. The charging device according to claim 1, characterized in that: The charging device also includes: A locking assembly, comprising a first locking member and a second locking member, wherein the first locking member is arranged on the base, and the second locking member is arranged on the winding reel; Among them, the first locking member is rotatably connected to the base, and the first locking member is slidably connected to the winding drum, and the rotation trajectory of the second locking member has a locking position and an unlocking position arranged in sequence. When the second locking member is located at the locking position, the first locking member is locked with the second locking member to achieve the locking of the winding drum with the base; when the second locking member is located at the unlocking position, the first locking member is unlocked with the second locking member to achieve the unlocking of the winding drum with the base.

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