CN218632702U - Charging wire telescoping device and charger - Google Patents

Abstract

The utility model belongs to the technical field of chargers, and relates to a charging wire telescoping device and a charger, the charging wire telescoping device comprises a shell, a winding mechanism, a switching electric assembly and a charging wire, wherein the winding mechanism comprises a driving assembly and a wire spool, the driving assembly is fixedly arranged on a bottom shell, the wire spool is sleeved on the driving assembly, and the wire spool is rotationally connected with the driving assembly; one part of the switching electric mechanism is connected with the bottom of the wire spool in the accommodating cavity, and one end of the switching electric mechanism extends out of the accommodating cavity; the charging wire twines on the wire reel, and the one end and the switching electric mechanism electricity of charging wire are connected, and the other end stretches out and holds the chamber. The charging wire telescopic device can be used for accommodating the charging wire, so that the problem that the charging wire is scattered outside, the charger is messy in whole, and inconvenience is brought to a user is solved; two can be through drive assembly automatic rolling charging wire, need not the manual rolling of user for accomodating of charger is more convenient, promotes user's use and experiences and feel.

Description

Charging wire telescoping device and charger

Technical Field

The utility model relates to a charger technical field especially relates to a charging wire telescoping device and charger.

Background

Electronic products such as mobile phones and tablet computers are indispensable products in life at present, the electronic products need to be charged frequently, and the existing charger for charging the mobile phones and the tablet computers is an AC charger and consists of a charging head and a charging wire.

However, the length of the charging wire of current charger is longer, and inconvenient accomodating, especially when carrying the charger, place in suitcase or package the inside, can cause the charging wire in disorder, occupation space, and it is still often drags other articles to take out, causes very big inconvenience for the user.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at, the charging wire of solving in the current charger is inconvenient to be accomodate to can cause the charger whole in disorder when carrying, cause inconvenient technical problem for the user.

In order to solve the technical problem, an embodiment of the utility model provides a charging wire telescoping device has adopted as follows technical scheme:

this charging wire telescoping device includes:

the shell comprises a top shell and a bottom shell which are mutually covered, the top shell and the bottom shell are internally enclosed together to form an accommodating cavity, a wire outlet hole is formed on the peripheral wall of the accommodating cavity, and the wire outlet hole is communicated with the accommodating cavity;

the winding mechanism is arranged in the accommodating cavity; the winding mechanism comprises a driving assembly and a wire spool, the driving assembly is fixedly mounted on the bottom shell, the wire spool is sleeved on the driving assembly, and the wire spool is rotationally connected with the driving assembly so as to rotate under the driving of the driving assembly;

a part of the switching power assembly is arranged at the bottom of the wire spool in the accommodating cavity, and one end of the switching power assembly extends out of the accommodating cavity to be connected with an external power supply;

the charging wire, the charging wire twine in on the winding mechanism, just the one end of charging wire with switching electrical component electricity is connected, and the other end stretches out hold the chamber in order to be connected with external equipment.

Further, in a preferable scheme of some embodiments, the driving assembly includes a driving member disposed at a central position of the bottom case, and the wire spool is sleeved on the driving member and is rotatably connected to an output end of the driving member.

Further, in some embodiments, it is preferable that the central axis of the output shaft of the driving member is in the same straight line with the central line of the wire spool.

Further, in a preferable solution of some embodiments, the driving assembly further includes a driving rod assembly, and the wire spool is rotatably connected to the driving member through the driving rod assembly.

Further, in a preferable scheme of some embodiments, the transmission rod assembly includes a limiting column and a connecting rod, the limiting column is disposed on a side of the wire spool far away from the bottom case; one end of the connecting rod is fixedly installed at the output end of the driving part so as to rotate under the driving of the driving part, and the other end of the connecting rod is fixedly connected with the limiting column so as to drive the wire spool to rotate.

Further, in a preferable scheme of some embodiments, the switching electrical component includes a conductive plate, a switching disc and a plug, the switching disc is fixedly mounted on the bottom case in the accommodating cavity, the conductive plate is fixedly mounted at the bottom of the wire spool in the accommodating cavity, is attached to the switching disc, and can be driven by the wire spool to rotate relative to the switching disc; the plug connector is electrically connected with the adapter plate and extends out of the accommodating cavity to be connected with an external power supply.

Further, in a preferable scheme of some embodiments, a plurality of conductive rings are arranged on one side of the adapter plate close to the conductive sheet, and a conductor in the plug is electrically connected with the corresponding conductive ring;

one side of the conducting strip, which is close to the adapter plate, is provided with a conducting post which corresponds to and is attached to the conducting ring, and the conductor in one end of the charging wire is electrically connected with the corresponding conducting strip.

Further, in some embodiments, it is preferable that the conductive rings are arranged in a ring shape, and/or the end portions of the conductive posts are arc-shaped.

Further, in the preferred scheme of some embodiments, the charging wire telescoping device still includes the response subassembly, the response subassembly install in hold the intracavity for detect the charging wire stretches out the length that holds the chamber.

In order to solve the above technical problem, an embodiment of the present invention further provides a charger, which adopts the following technical scheme: the charger comprises the charging wire telescopic device.

Compared with the prior art, the embodiment of the utility model provides a pair of charging wire telescoping device and charger mainly have following beneficial effect:

this charging wire telescoping device is provided with wire reel and drive assembly, and the wire reel cover is located on the drive assembly, and the wire reel rotates with drive assembly to be connected. When charging is needed, a user pulls out the charging wire in a direction away from the charging wire telescopic device, the charging wire is connected with external equipment, and the switching power assembly is connected with an external power supply, so that the external equipment is charged; after the charging is finished or when the charging device is not used, the user controls the driving assembly to work, and the driving assembly drives the wire spool to rotate, so that the charging wire can be wound on the wire spool, and the charging wire is stored.

Therefore, on one hand, the charging wire telescopic device can accommodate the charging wire, so that the problem that the charging wire is scattered outside, the charger is messy as a whole, and inconvenience is caused to a user is solved; on the other hand, this charging wire telescoping device can need not the manual rolling of user through drive assembly automatic rolling charging wire for accomodating of charger is more convenient, promotes user's use and experiences and feel.

Drawings

In order to illustrate the solution of the present invention more clearly, the drawings needed for describing the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts. Wherein:

fig. 1 is a schematic perspective view of a charging wire retractor device according to an embodiment of the present invention;

fig. 2 is a schematic view showing an internal three-dimensional structure of a charging wire retracting device according to an embodiment of the present invention;

FIG. 3 is a cross-sectional schematic view of the charging cord retractor of FIG. 2;

FIG. 4 is an exploded view of the charging cord retractor of FIG. 1;

fig. 5 is a schematic view of an internal three-dimensional structure of a charging wire retracting device according to an embodiment of the present invention;

FIG. 6 is a cross-sectional schematic view of the charging cord retractor of FIG. 5;

FIG. 7 is an exploded view of the drive member and drive rod assembly of FIG. 5;

FIG. 8 is a schematic structural view of the connecting rod of FIG. 7;

FIG. 9 is a perspective view of the spool of FIG. 4;

FIG. 10 is a schematic perspective view of the spool of FIG. 4 at another angle;

FIG. 11 is a schematic perspective view of the conductive sheet of FIG. 4;

fig. 12 is a perspective view of the receiving tray of fig. 4.

The reference numbers in the drawings are as follows:

100. a charging wire retractor;

10. a housing; 11. a top shell; 12. a bottom case; 13. a wire outlet hole; 14. an accommodating chamber;

20. a winding mechanism; 21. a drive assembly; 211. a drive/motor; 212. a drive rod assembly; 2121. a connecting rod; 21211. a first connection hole; 21212. a second connection hole; 2122. a limiting column; 22. a wire spool; 221. inserting holes; 222. a winding slot; 223. a through hole;

30. a switching power assembly; 31. a conductive sheet; 311. a conductive post; 32. a switching disk; 321. conducting rings; 33. A plug-in connector;

40. and a charging wire.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terms used herein in the specification are for the purpose of describing particular embodiments only and are not intended to limit the present invention, for example, the terms "length," "width," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or position based on the orientation or position shown in the drawings, for convenience of description only, and should not be construed as limiting the present disclosure.

The terms "including" and "having," and any variations thereof, in the description and claims of this invention and the description of the above figures are intended to cover non-exclusive inclusions; the terms "first," "second," and the like in the description and in the claims, or in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. The meaning of "plurality" is two or more unless specifically limited otherwise.

In the description and claims of the present invention and in the description of the above figures, when an element is referred to as being "fixed" or "mounted" or "disposed" or "connected" to another element, it can be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The embodiment of the utility model provides a charging wire telescoping device 100, this charging wire telescoping device 100 is used for the charger (not shown). In the present embodiment, for convenience of explanation, the mobile phone charger is taken as an example.

As shown in fig. 1 to 4, the charging cord retracting device 100 includes a housing 10, a winding mechanism 20, an electric adapter assembly 30, and a charging cord 40. The housing 10 includes a top shell 11 and a bottom shell 12, the top shell 11 and the bottom shell 12 are mutually covered to form an accommodating cavity 14 and form an outlet hole 13 on the peripheral wall of the housing 10, which is the same as the accommodating cavity 14. Specifically, the top shell 11 is fastened to the bottom shell 12 to cover the bottom shell 12, but in other embodiments, the top shell 11 may also be covered on the bottom shell 12 by other suitable methods such as adhesion.

In the present embodiment, in order to ensure the safe use of the charging cable retractor 100 and to improve the service life thereof, the winding mechanism 20 and the switching power assembly 30 are both installed in the accommodating cavity 14. Understandably, when charging wire telescoping device 100 received the exogenic action, casing 10 can receive the exogenic action earlier to avoid winding mechanism 20 and switching electrical component 30 directly to receive exogenic action and harm, and then ensure charging wire telescoping device 100's safe handling, and improve its life.

Wherein, winding mechanism 20 includes drive assembly 21 and wire reel 22, and drive assembly 21 fixed mounting is on drain pan 12, and wire reel 22 overlaps and locates on drive assembly 21, and wire reel 22 rotates with drive assembly 21 and is connected to make drive assembly 21 can drive wire reel 22 and rotate.

In addition, a portion of the adapting electrical component 30 is mounted on the bottom of the wire spool 22 in the accommodating cavity 14, and one end of the adapting electrical component 30 extends out of the accommodating cavity 14 to connect to an external power source (not shown). In addition, charging wire 40 twines on winding mechanism 20, and charging wire 40's one end is connected with switching electric subassembly 30 electricity, and the other end stretches out through wire hole 13 and holds chamber 14 for connect external equipment (specifically wait the charging device) and connect. Specifically, in the present embodiment, the charging wire 40 extends out of the accommodating cavity 14 through the wire outlet 13 to be connected to an external device, a groove (not shown) is formed at the bottom of the bottom case 12 and is communicated with the accommodating cavity 14, and one end of the switching electrical component 30 extends into the groove from the accommodating cavity 14 to be connected to an external power source.

When charging is needed, a user pulls the charging wire 40 away from the wire outlet hole 13 to connect with an external device, and meanwhile, the switching power assembly 30 is connected with an external power supply, so that the external device to be charged is realized; after the completion of charging or when not using, user control drive assembly 21 work, drive assembly 21 drives wire reel 22 and rotates to make charging wire 40 convolute on wire reel 22, thereby accomodate charging wire 40.

In this embodiment, when the user manually pulls the charging wire 40 in a direction away from the wire outlet 13, the driving assembly 21 is in an idle state, and when the charging wire 40 needs to be wound up, the user controls the driving assembly 21 to rotate, so that the charging wire 40 is automatically wound up on the wire spool 22.

It should also be noted that, in other embodiments, the user can not need manual pulling charging wire 40, both controls stretching out of charging wire 40 through drive assembly 21, also controls the rolling of charging wire 40, the utility model discloses do not limit to this, the skilled person can select according to actual conditions.

To sum up, compare prior art, this charging wire telescoping device 100 has following beneficial effect at least: on one hand, the charging cable retractor device 100 can accommodate the charging cable 40, so that the problem that the charging cable 40 is scattered outside, the charger is messy overall, and inconvenience is brought to a user is avoided; on the other hand, this charging wire telescoping device 100 can be through drive assembly 21 automatic rolling charging wire 40, need not the manual rolling of user for accomodating of charger is more convenient, promotes user's use and experiences and feel.

In order to make the technical solution of the present invention better understood, the technical solution of the embodiment of the present invention will be clearly and completely described below with reference to fig. 1 to 12.

The utility model discloses embodiment one of charging wire telescoping device 100

In this embodiment, as shown in fig. 2, fig. 3 and fig. 4, the driving assembly 21 includes a driving element 211, the driving element 211 is disposed at a central position of the bottom case 12, and the wire spool 22 is sleeved on the driving element 211 and is rotatably connected to an output end of the driving element 211, so that the driving element 211 can drive the wire spool 22 to rotate. Specifically, in this embodiment, the driving element 211 is a motor, the wire spool 22 is provided with an insertion hole 221, and an output shaft of the motor 211 is installed in the insertion hole 221, so that the motor 211 is fixedly connected to the wire spool 22. It can be understood that when the motor 211 is operated, the output end of the motor 211 drives the wire spool 22 to rotate, that is, the motor 211 drives the wire spool 22 to rotate.

Of course, in other embodiments, the driving member 211 may be other suitable driving members 211, which is not limited by the present invention, and those skilled in the art can select the driving member 211 according to the actual situation.

Further, as a specific embodiment of the utility model provides a charging wire telescoping device 100, the central axis of driving piece 211 output shaft is located the collinear with the central line of wire reel 22. It should be noted that, on one hand, by disposing the driving member 211 at the central position of the bottom case 12, the overall weight of the charging cord retracting device 100 can be uniformly distributed, and the problem of heavy weight and light weight can be avoided; on the other hand, the central axis of the output shaft of the driving member 211 and the central line of the wire spool 22 are positioned on the same straight line, so that the transmission path can be reduced, the inclination is avoided to ensure the transmission precision, and the transmission efficiency of the driving member 211 is improved.

Further, as a specific implementation of the charging wire retractor 100 provided by the present invention, as shown in fig. 2, fig. 3 and fig. 9, in order to reduce the occupied space of the charging wire 40 after winding, the side portion of the wire spool 22 is provided with a wire winding groove 222, and the wire winding groove 222 is used for winding the charging wire 40. It can be understood that, when the charger is not used, the user drives the wire spool 22 to rotate through the driving member 211, and simultaneously, the charging wire 40 is gradually wound into the wire winding slot 222 along with the rotation of the wire spool 22, i.e. the storage of the charging wire 40 is completed.

It should be noted that, through accomodating charging wire 40 in wire winding groove 222, can reduce the occupation space of charging wire 40, avoid charging wire 40 protrusion in the internal wall looks mutual friction of wire reel 22 with casing 10 to hinder the motion of wire reel 22, lead to appearing wire reel 22 card pause or charging wire 40 folding scheduling problem, improve user's use and experience the sense.

In this embodiment, as shown in fig. 10, a through hole 223 is formed on the wire spool 22, and one end of the charging wire 40 is electrically connected to the switching electrical assembly 30 through the through hole 223, so that the electric energy of the external power source sequentially passes through the switching electrical assembly 30 and the charging wire 40, and is then transmitted to the external device, that is, the external device is charged.

Further, as the utility model provides a charging wire telescoping device 100's a specific implementation mode, as shown in fig. 3 and fig. 4, switching electric subassembly 30 includes conducting strip 31, switching dish 32 and bayonet joint 33, switching dish 32 is holding chamber 14 internal fixation and is on drain pan 12, conducting strip 31 is holding chamber 14 internal fixation and is in the bottom of wire reel 22, and switching dish 32 and the laminating of conducting strip 31, and can rotate relatively with switching dish 32 under wire reel 22's drive, bayonet joint 33 is connected with switching dish 32 electricity, and stretch out casing 10 in order to connect external power source. In the present embodiment, the plug 33 is a USB plug.

Understandably, when needs charge to external equipment, the user pulls out charging wire 40 to the direction of keeping away from charging wire telescoping device 100, with the external equipment switch-on, simultaneously, plug 33 is connected with external power supply to the realization is for treating external equipment to charge.

It should be noted that, during the process of pulling the charging wire 40 away from the charging wire retracting device 100, the wire spool 22 is in a rotating state, and the driving member 211 is in an idling state. In addition, when wire reel 22 rotated, wire reel 22 drove conducting strip 31 and rotates to conducting strip 31 is in laminating state with switching dish 32 all the time, in order to guarantee when wire reel 22 rotated, and charging wire 40 still keeps the electricity to be connected, keeps charging to external equipment.

Further, as the utility model provides a concrete implementation of charging wire telescoping device 100, as shown in fig. 11 and 12, one side that the switching dish 32 is close to conducting strip 31 is provided with a plurality of conducting rings 321, conductor in the bayonet joint 33 is connected with the conducting ring 321 electricity that corresponds, one side that conducting strip 31 is close to switching dish 32 is provided with the conducting post 311 that corresponds and laminate with conducting ring 321, conductor in the charging wire 40 is connected with conducting strip 31 electricity to make bayonet joint 33 be connected with charging wire 40 electricity.

It can be understood that, in the process of charging the external device, the electric energy of the external power source is transmitted from the plug 33 to the conductive ring 321 of the adapter plate 32, then transmitted from the conductive ring 321 to the conductive pillar 311, then transmitted from the conductive pillar 311 to the conductor in the charging wire 40, and finally transmitted to the external device, so as to complete charging of the external device.

It should be noted that, in other embodiments, the conductive post 311 and the conductive ring 321 may be arranged oppositely, as long as it is ensured that the adaptor plate 32 and the conductive plate 31 are electrically connected to each other, the present invention is not limited thereto, and those skilled in the art can select them according to actual situations.

In the present embodiment, the conductive rings 321 are annularly arranged, and the end of the conductive pillar 311 is arc-shaped. Of course, in other embodiments, the conductive ring 321 may be arranged in other shapes, and the end of the conductive pillar 311 may also be arranged in other shapes.

Further, as the utility model provides a concrete implementation mode of charging wire telescoping device 100, charging wire telescoping device 100 still includes the response subassembly (not shown), and the response unit mount is in holding chamber 14 for detect the length that charging wire 40 stretches out and holds chamber 14, with the length overlength of avoiding charging wire 40 to pull out, thereby lead to the problem that charging wire 40 damaged.

In detail, the sensing assembly is disposed in the accommodating cavity 14 and is located at the outlet hole 13 of the accommodating cavity 14. The user sets for a threshold value in advance, and when the user pulled charging wire 40 to the direction of keeping away from wire hole 13, the response subassembly can detect out the length that stretches out and hold 14 outside charging wires 40 in chamber, when stretching out and hold 14 outside charging wires 40's length and surpass the threshold value, can send the early warning to remind the user to stop pulling charging wire 40, thereby avoid the length overlength that charging wire 40 pulled out, lead to the problem that charging wire 40 damaged.

Further, as the utility model provides a charging wire telescoping device 100's a specific implementation way, in wire hole 13 department, be provided with the flexible piece (not shown) on the casing 10 for protection charging wire 40. In this embodiment, the flexible member is a rubber ring, and the rubber ring is fixed to the outlet hole 13 of the housing 10 by gluing. It should be noted that the problem that the housing 10 at the outlet hole 13 wears the charging wire 40 due to long-term pulling of the charging wire 40 can be prevented through the arrangement of the flexible piece, so that the charging wire 40 is protected.

Of course, in other embodiments, the flexible member may also be other flexible members such as a silicone member, which is not limited in this embodiment, and a person skilled in the art may select the flexible member according to actual situations.

The utility model discloses embodiment two of charging wire telescoping device 100

The main technical features of the present embodiment are substantially the same as those of the first embodiment, and the main differences from the first embodiment are as follows:

in the second embodiment, as shown in fig. 5 to 7, the driving assembly 21 includes a driving member 211 and a transmission rod assembly 212, the driving member 211 is fixedly installed on the bottom case 12, the wire spool 22 is sleeved on the driving member 211, and the wire spool 22 is rotatably connected to the driving member 211 through the transmission rod assembly 212, so that the driving member 211 can drive the wire spool 22 to rotate. It can be understood that, when the driving member 211 is operated, the driving member 211 drives the transmission rod assembly 212 to rotate, and the transmission rod assembly 212 drives the wire spool 22 to rotate, that is, the driving member 211 drives the wire spool 22 to rotate.

When charging is needed, a user pulls the charging wire 40 away from the wire outlet hole 13 to connect with an external device, and meanwhile, the switching mechanism 30 is connected with an external power supply, so that the external device to be charged is realized; after the completion of charging or when not using, user control driving piece 211 work, and driving piece 211 drives transmission rod assembly 212 and rotates, and transmission rod assembly 212 drives wire reel 22 and rotates to make charging wire 40 convolute on wire reel 22, thereby accomodate charging wire 40.

Further, as the utility model provides a charging wire telescoping device 100's a specific embodiment, as shown in fig. 6 to 8, drive rod assembly 212 includes connecting rod 2121 and spacing post 2122, and spacing post 2122 sets up on one side that drain pan 12 was kept away from to wire reel 22, and connecting rod 2121's one end fixed mounting is in order to take place to rotate under the drive of driving piece 211 in the output of driving piece 211, other end and spacing post 2122 fixed connection to make driving piece 211 can drive wire reel 22 and rotate.

In this embodiment, the connecting rod 2121 has a first connecting hole 21211 and a second connecting hole 21212 along the length direction thereof, the first connecting hole 21211 is adapted to the output end of the driving element 211, and the second connecting hole 21212 is adapted to the position-limiting post 2122. Specifically, one end of the connecting rod 2121 is sleeved on the output end of the driving element 211 through the first connecting hole 21211, and the other end of the connecting rod 2121 is sleeved on the limiting post 2122 through the second connecting hole 21212, so that the driving element 211 is in transmission connection with the wire spool 22, and the driving element 211 can drive the wire spool 22 to rotate.

Further, as the utility model provides a charging wire telescoping device 100's a specific embodiment, spacing post 2122 protrusion is greater than connecting rod 2121's thickness in the height of wire reel 22 to avoid spacing post 2122's high undersize, lead to the driving piece 211 to appear the problem that connecting rod 2121 drops when driving wire reel 22 and rotate, influence user's use and experience and feel.

Based on foretell charging wire telescoping device 100, the embodiment of the utility model provides a charger (not shown) is still provided, wherein, this charger includes foretell charging wire telescoping device 100. It can be understood that, when charging is needed, a user pulls out the charging wire 40 in a direction away from the charging wire retractor 100 to connect with an external device, and meanwhile, the plug connector 33 is plugged into an external socket (not shown), that is, connected with an external power supply, so as to charge the external device; after the completion of charging or when not using, user control driving piece 211 work, driving piece 211 drives and drives wire reel 22 and rotate to make charging wire 40 convolute on wire reel 22, thereby accomodate charging wire 40.

Compared with the prior art, the charger at least has the following beneficial effects: by adopting the charging wire telescopic device 100, on one hand, the charger can accommodate the charging wire 40, so that the problem that the charging wire 40 is scattered outside, the charger is messy in whole and inconvenience is brought to users is solved; on the other hand, this charger can need not the manual rolling of user through driving piece 211 automatic rolling charging wire 40 for accomodating of charger is more convenient, promotes user's use and experiences and feel.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a charging wire telescoping device, its characterized in that, charging wire telescoping device includes:

the shell comprises a top shell and a bottom shell which are mutually covered, the top shell and the bottom shell are internally enclosed together to form an accommodating cavity, a wire outlet hole is formed on the peripheral wall of the accommodating cavity, and the wire outlet hole is communicated with the accommodating cavity;

the winding mechanism is arranged in the accommodating cavity; the winding mechanism comprises a driving assembly and a wire spool, the driving assembly is fixedly mounted on the bottom shell, the wire spool is sleeved on the driving assembly, and the wire spool is rotationally connected with the driving assembly so as to rotate under the driving of the driving assembly;

a part of the switching power assembly is arranged at the bottom of the wire spool in the accommodating cavity, and one end of the switching power assembly extends out of the accommodating cavity to be connected with an external power supply;

the charging wire, the charging wire twine in on the winding mechanism, just the one end of charging wire with switching electrical component electricity is connected, and the other end stretches out hold the chamber in order to be connected with external equipment.

2. The charging wire retractor device according to claim 1, wherein the driving assembly comprises a driving member, the driving member is disposed at a central position of a bottom case, and the wire spool is sleeved on the driving member and is rotatably connected to an output end of the driving member.

3. The charging cord retractor of claim 2, wherein the central axis of the drive member output shaft is collinear with the centerline of the spool.

4. The charging cord retractor of claim 2, wherein the drive assembly further comprises a drive bar assembly, the wire spool being rotatably connected to the drive member by the drive bar assembly.

5. The charging wire retractor device of claim 4, wherein the drive rod assembly comprises a limiting post and a connecting rod, the limiting post is disposed on a side of the wire spool away from the bottom case; one end of the connecting rod is fixedly installed at the output end of the driving part so as to rotate under the driving of the driving part, and the other end of the connecting rod is fixedly connected with the limiting column so as to drive the wire spool to rotate.

6. The charging wire retractor device according to any one of claims 1 to 5, wherein the switching power assembly comprises a conductive sheet, a switching disc and a plug, the switching disc is fixedly mounted on the bottom case in the accommodating cavity, the conductive sheet is fixedly mounted at the bottom of the wire spool in the accommodating cavity, is attached to the switching disc, and can be driven by the wire spool to rotate relative to the switching disc; the plug connector is electrically connected with the adapter plate and extends out of the accommodating cavity to be connected with an external power supply.

7. The charging wire retractor device of claim 6, wherein a plurality of conductive rings are disposed on one side of the adaptor plate near the conductive strips, and conductors in the plug are electrically connected to the corresponding conductive rings;

one side of the conducting strip, which is close to the adapter plate, is provided with a conducting post which corresponds to and is attached to the conducting ring, and the conductor in one end of the charging wire is electrically connected with the corresponding conducting strip.

8. The charging wire telescoping device of claim 7, wherein a plurality of the conductive rings are arranged in a ring shape, and/or the end of the conductive post is arc-shaped.

9. The charging wire telescoping device of any one of claims 1-5, characterized in that, the charging wire telescoping device still includes the response subassembly, the response subassembly is installed in hold the intracavity for detect the length that the charging wire stretches out hold the chamber.

10. A charger, characterized in that, the charger comprises the charging wire retractor according to any of claims 1 to 9.

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