Charging device

Abstract

The utility model discloses a telescopic wire module and a charging device, the telescopic wire module comprises a housing, a winding roll rotatably installed in the housing, a lead wound on the winding roll and a motor, one end of the lead extends out of the housing, the motor comprises a motor main body and a motor shaft, the motor main body is installed on the housing, and the motor shaft is installed on the housing. The motor shaft is in transmission connection with the winding roll to drive the winding roll to rotate. The telescopic wire module can drive a winding roll to rotate through a control motor so as to enable the wire to retract, and the problem that the wire hits hands due to the fact that wire winding is too fast can be prevented. In the take-up process, after the motor stops working, the wire stops retracting, and the pull-out length of the wire can be adjusted by controlling starting and stopping of the motor; when the motor is pulled out, magnetic attraction force is generated between the stator and the rotor of the motor, the magnetic attraction force can play a role in positioning the wire when the motor does not work, the wire is made to stay at the current pull-out position, the internal structure of the telescopic wire module is simplified, and production efficiency and follow-up maintenance are improved conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic product technical field especially, relate to a charging device. BACKGROUND

[0002] The charging device such as charger, mobile power etc. usually selects to set up telescopic line module to facilitate user use and carry, when needing charging, data line is pulled outwards, and when not needing charging, data line is retracted back to be stored in the inside of charging device.

[0003] The telescopic line module usually realizes the function of winding through setting torsional spring, when user pulls data line outwards, torsional spring deforms and generates elastic force, and winding power is provided relying on the elastic force of torsional spring. However, the elastic force of torsional spring is not easy to control, and the speed of data line retraction back too fast can make data line end swing, and the plug of data line end can swing to user's hand, produce painful feeling, affect use experience, and in order to keep data line at current position, the positioning structure that can be unlocked and locked is set between the winding reel and shell of telescopic line module, and the production difficulty is increased. SUMMARY

[0004] Therefore, the utility model provides a kind of charging device to solve above-mentioned problems.

[0005] The application provides a kind of charging device, including shell, charging module and telescopic line module, the charging module and the telescopic line module are installed to the shell, the telescopic line module includes shell, winding reel rotationally installed in the inside of the shell, wire wound on the winding reel and one end extends outside the shell, and motor, the motor includes motor main body and motor shaft, the motor main body is installed to the shell, the motor shaft is transmission connection with the winding reel to drive the winding reel rotation, the telescopic line module is equipped with the connection end electrically connected with the wire, and the charging module is electrically connected with the connection end.

[0006] In some embodiments, the winding reel includes a base plate and a winding column on one side of the base plate, the wire is wound on the winding column, the winding column is provided with a receiving hole, the motor main body is at least partially received in the receiving hole, and the motor shaft is fixed opposite to the winding column.

[0007] In some embodiments, the retractable cord reel further comprises electrically connected first and second circuit boards, the first and second circuit boards are in contact and rotationally fitted with each other, the first circuit board is fixed relative to the cord reel and electrically connected with the cord, the second circuit board is fixed relative to the housing and electrically connected with the motor body, the first and second circuit boards are located at an end of the motor body away from the motor shaft, and the end of the motor body away from the motor shaft is electrically connected with the second circuit board.

[0008] In some embodiments, the first circuit board is provided with a clearance hole, the end of the motor body away from the motor shaft is provided with a plug-in part, the second circuit board is provided with a plug-in hole, the end of the motor body away from the motor shaft passes through the clearance hole, and the plug-in part is plug-in fitted with the plug-in hole.

[0009] In some embodiments, the retractable cord reel further comprises a speed reduction mechanism located in the housing, the speed reduction mechanism comprises a gear part fixed relative to the cord reel and a speed reduction gear rotationally installed on the housing, gear teeth of the gear part are arranged along a rotation direction of the cord reel, and the speed reduction gear is engaged with the gear part.

[0010] In some embodiments, the retractable cord reel further comprises a transmission mechanism, the motor is located at an axial side of the cord reel, the transmission mechanism comprises a transmission shaft and a gear set, the transmission shaft is fixed relative to the cord reel, the motor shaft is transmissionally connected with the transmission shaft through the gear set, and an axial direction of the motor shaft is perpendicular to an axial direction of the transmission shaft.

[0011] In some embodiments, the retractable cord reel further comprises electrically connected first and second circuit boards, the first and second circuit boards are in contact and rotationally fitted with each other, the first circuit board is fixed relative to the cord reel and electrically connected with the cord, the second circuit board is fixed relative to the housing and electrically connected with the motor body, the first and second circuit boards are located at an end of the cord reel away from the motor, and the first circuit board is located between the cord and the second circuit board.

[0012] In some embodiments, the motor is located outside the housing, an outer side of the motor is covered with a protective shell, and the protective shell is detachably connected with the housing.

[0013] In some embodiments, the retractable cord reel further comprises a power supply, the motor is electrically connected with the power supply; and / or,

[0014] The wire includes a wire body and a plug connected to one end of the wire body, the shell is provided with a wire outlet, one end of the wire body passes through the wire outlet, and the plug is located outside the wire outlet, the shell is provided with two stop blocks that are spaced from each other at a position close to the wire outlet, the wire body is located between the two stop blocks, and the spacing between the two stop blocks is smaller than the width of the wire outlet.

[0015] The charging device provided by the utility model, through transmission connection of the motor shaft of the motor and the winding disc, the motor shaft can drive the winding disc to rotate when rotating, so that the telescopic wire module can drive the wire to retract back by controlling the motor to drive the winding disc to rotate, realizes the take-up operation, and the rotation speed of the motor shaft can control the take-up speed, so that the problem of wire beating caused by too fast take-up can be prevented; moreover, during the take-up process, when the motor stops working, the wire will stop retracting back, so that the pulling length of the wire can be adjusted by controlling the start and stop of the motor; meanwhile, magnetic attraction force is generated between the stator and the rotor of the motor, the magnetic attraction force can position the wire when the motor does not work, so that the wire stays at the current pulling position, which is beneficial to simplify the internal structure of the telescopic wire module, improve production efficiency and subsequent maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides a telescopic wire module's structure schematic view for an embodiment of the utility model;

[0017] Figure 2 The utility model provides a telescopic wire module's structure schematic view for an embodiment of the utility model; Figure 1 The utility model provides a telescopic wire module's structure schematic view for an embodiment of the utility model;

[0018] Figure 3 The utility model provides a telescopic wire module's structure schematic view for an embodiment of the utility model; Figure 1 The utility model provides a telescopic wire module's structure schematic view for an embodiment of the utility model;

[0019] Figure 4 The utility model provides a telescopic wire module's structure schematic view for an embodiment of the utility model; Figure 2 The utility model provides a telescopic wire module's structure schematic view for an embodiment of the utility model;

[0020] Figure 5 The utility model provides a telescopic wire module's structure schematic view for an embodiment of the utility model; Figure 2 The utility model provides a telescopic wire module's structure schematic view for an embodiment of the utility model;

[0021] Figure 6 The utility model provides a telescopic wire module's structure schematic view for an embodiment of the utility model; Figure 1 The utility model provides a telescopic wire module's structure schematic view for an embodiment of the utility model;

[0022] Figure 7 The utility model provides a telescopic wire module's structure schematic view for an embodiment of the utility model;

[0023] Figure 8 The utility model provides a telescopic wire module's structure schematic view for an embodiment of the utility model; Figure 7 The utility model provides a telescopic wire module's structure schematic view for an embodiment of the utility model;

[0024] Figure 9 Partially exploded schematic view of the telescopic wire module is shown in the embodiment of the utility model.

[0025] Figure 10 For Figure 1 Partially exploded schematic view of the telescopic wire module is shown in the embodiment of the utility model.

[0026] In the figure: 10, telescopic wire module; 12, shell; 14, wire reel; 16, wire; 18, wire outlet; 20, motor; 22, motor main body; 24, motor shaft; 26, storage hole; 28, base plate; 30, wire winding column; 32, first circuit board; 34, second circuit board; 36, avoiding hole; 38, plug-in part; 40, plug-in hole; 42, connector; 44, pin; 46, conductive part; 48, power supply; 50, speed reduction mechanism; 52, gear part; 54, speed reduction gear; 55, mounting shaft; 56, transmission mechanism; 58, transmission shaft; 60, gear set; 62, protective shell; 64, wire body; 66, plug; 68, stop block. DETAILED DESCRIPTION

[0027] In the following, the utility model is further described in combination with the drawings and the specific implementation, and it needs to be explained that, under the premise of not conflicting, the following described each embodiment or each technical feature can be combined to form a new embodiment.

[0028] It needs to be explained that, all directionality indications (such as up, down, left, right, front, back, inside, outside, top, bottom...) in the embodiment of the utility model are only used to explain the relative position relationship between each component and the like in a certain specific posture (as shown in the drawings), if the specific posture changes, then the directionality indication also changes accordingly.

[0029] It also needs to be explained that, when an element is referred to as being "fixed to" or "set to" another element, the element can be directly on another element or a centering element can exist simultaneously. When an element is referred to as being "connected" to another element, it can be directly connected to another element or a centering element can exist simultaneously.

[0030] Please refer to Figures 1 to 6 The utility model provides a kind of charging device, including telescopic wire module 10, telescopic wire module 10 is used to with mobile phone, tablet, smart watch and so on Electronic connection, to charge corresponding electronic equipment, the specific kind of this charging device is not limited, for example charger, mobile power supply and so on.

[0031] The telescopic wire module 10 comprises a housing 12, a wire reel 14 and a wire 16. The wire reel 14 is rotatably installed inside the housing 12, and the wire 16 is wound on the wire reel 14. One end of the wire 16 extends out of the housing 12 to be connected with an electronic device. Specifically, the housing 12 is provided with a wire outlet 18, and one end of the wire 16 extends out of the housing 12 through the wire outlet 18 to be connected with the electronic device, and at the same time, the user can pull the part of the wire 16 outside the housing 12. When the user needs to use the wire 16, the user can pull the wire 16 out to form a wire-out effect and drive the wire reel 14 to rotate in one direction. When the user does not need to use the wire 16, the user can drive the wire reel 14 to rotate in the opposite direction to make the wire 16 retract back to form a wire-in effect, and the wire 16 is stored in the housing 12, which can protect the wire 16 and reduce the volume of the telescopic wire module 10.

[0032] Preferably, the housing 12 comprises a first housing 12 and a second housing 12 which is combined with the first housing 12, and the wire reel 14 is located between the first housing 12 and the second housing 12. By dividing the housing 12 into two parts, the first housing 12 and the second housing 12 can be separated when the wire reel 14 is installed, and then the first housing 12 is combined with the second housing 12 after the installation of the wire reel 14 is completed, which can facilitate the installation of the wire reel 14.

[0033] The telescopic wire module 10 further comprises a motor 20, which comprises a motor body 22 and a motor shaft 24. The motor body 22 is installed to the housing 12 and is used to drive the motor shaft 24 to rotate. The motor shaft 24 is in transmission connection with the wire reel 14 to drive the wire reel 14 to rotate relative to the housing 12. Specifically, the motor body 22 comprises a stator and a rotor. The motor shaft 24 is relatively fixed in the circumferential direction with the rotor. The stator can drive the rotor to rotate after being electrified, and in turn drive the motor shaft 24 to rotate. The motor shaft 24 is in transmission connection with the wire reel 14, and in turn drive the wire reel 14 to rotate. The telescopic wire module 10 can drive the wire reel 14 to rotate to form a wire-in effect by controlling the motor 20. Therefore, the output power of the motor 20, i.e. the rotation speed of the motor shaft 24, can be controlled to control the wire-in speed of the wire 16, so as to avoid the problem of the wire 16 being pulled too fast. When the motor 20 stops working, i.e. the motor shaft 24 stops rotating, the wire 16 will stop retracting back. Therefore, the user can adjust the pull-out length of the wire 16 by controlling the start and stop of the motor 20, which is convenient for the user to use. The motor body 22 comprises a stator and a rotor. One of the stator and the rotor comprises a magnetic member, such as a permanent magnet, and the other comprises an iron core support, such as a support made of silicon steel sheets. Therefore, a magnetic attraction force is generated between the stator and the rotor. The magnetic attraction force can form a positioning effect on the wire 16 when the motor 20 is not working, so as to keep the wire 16 at the current pull-out position to maintain the corresponding pull-out length. This is conducive to simplifying the internal structure of the telescopic wire module 10 and facilitating the improvement of production efficiency and subsequent maintenance.

[0034] It should be noted that the transmission connection between the motor shaft 24 and the winding disc 14 means that after the motor shaft 24 is connected with the winding disc 14, the motor shaft 24 can drive the winding disc 14 to rotate when the motor shaft 24 rotates.

[0035] The specific mode of achieving the transmission connection between the motor shaft 24 and the winding disc 14 is not limited, for example, the motor shaft 24 and the winding disc 14 can be directly fixed relative to each other, so that the motor shaft 24 can drive the winding disc 14 to rotate synchronously when the motor shaft 24 rotates, or a transmission structure such as a gear set can be arranged between the motor shaft 24 and the winding disc 14, and the motor shaft 24 is indirectly connected with the winding disc 14 through the transmission structure, and the winding disc 14 is driven to rotate by the transmission structure when the motor shaft 24 rotates.

[0036] In an embodiment, the motor shaft 24 and the winding disc 14 are fixed relative to each other, that is, the motor shaft 24 is kept fixed relative to the winding disc 14 in the circumferential direction of the motor shaft 24, so that the winding disc 14 and the motor shaft 24 cannot rotate relative to each other, thereby enabling the motor shaft 24 to drive the winding disc 14 to rotate when the motor shaft 24 rotates. The mode of fixing the motor shaft 24 and the winding disc 14 relative to each other to achieve the transmission connection does not require a transmission structure to be arranged between the motor shaft 24 and the winding disc 14, which is beneficial to reduce the assembly difficulty and simplify the internal structure of the stretchable wire module 10.

[0037] Specifically, the central axis of the motor shaft 24 coincides with the central axis of the winding disc 14.

[0038] The specific mode of fixing the motor shaft 24 and the winding disc 14 relative to each other is not limited, as long as the motor shaft 24 can drive the winding disc 14 to rotate when the motor shaft 24 rotates, for example, the motor shaft 24 and the winding disc 14 can be fixed together by using a fixing member or glue, or a matching flat position or concave-convex structure can be arranged between the motor shaft 24 and the winding disc 14 to achieve the effect of circumferential fixation.

[0039] In the present embodiment, the winding disc 14 is provided with a receiving hole 26, and the motor body 22 is at least partially received in the receiving hole 26, and the motor shaft 24 is fixed relative to the winding disc 14. Specifically, the winding disc 14 is further provided with a shaft hole communicating with the receiving hole 26, and the motor shaft 24 is arranged in the shaft hole and fixed relative to the winding disc 14. By receiving the motor body 22 in the receiving hole 26 of the winding disc 14, the compactness of the internal structure of the stretchable wire module 10 can be enhanced, which is beneficial to reduce the overall thickness of the stretchable wire module 10.

[0040] The winding disc 14 comprises a base plate 28 and a winding column 30 located on one side of the base plate 28, the circumferential dimension of the base plate 28 is larger than that of the winding column 30, and the winding column 30 is located in the middle of the base plate 28, so that the winding disc 14 forms a winding space outside the winding column 30, one end of the wire 16 is fixedly connected with the winding column 30, and the wire 16 can be wound on the winding column 30 to be stored in the winding space. The storage hole 26 is arranged on the winding column 30, and the motor shaft 24 is fixedly connected with the winding column 30. When the telescopic wire module 10 is not used, the wire 16 is located outside the winding column 30, and the motor body 22 is located inside the winding column 30, so as to improve the compactness of the overall structure.

[0041] The telescopic wire module 10 further comprises first and second circuit boards 32 and 34 electrically connected, which are arranged in the axial direction of the winding disc 14. The first circuit board 32 is fixedly connected with the winding disc 14 and electrically connected with the wire 16, and the second circuit board 34 is fixedly connected with the shell 12 and electrically connected with the motor 20. The first and second circuit boards 32 and 34 are in contact with each other to form an electrical connection effect. The first and second circuit boards 32 and 34 are rotationally connected, and when the first circuit board 32 rotates relative to the second circuit board 34 following the winding disc 14, the first and second circuit boards 32 and 34 always remain in contact, that is, always maintain an electrical connection effect, avoiding affecting the electrical connection between the first and second circuit boards 32 and 34 due to the rotation of the first circuit board 32.

[0042] The first and second circuit boards 32 and 34 are located close to one end of the motor body 22 away from the motor shaft 24, and the first circuit board 32 is located between the wire 16 and the second circuit board 34. The one end of the motor body 22 away from the motor shaft 24 is electrically connected with the second circuit board 34. The first and second circuit boards 32 and 34 are located on the same side of the winding disc 14, and the first circuit board 32 is closer to the wire 16 than the second circuit board 34, and the second circuit board 34 is closer to the one end of the motor body 22 away from the motor shaft 24 than the first circuit board 32, thereby reducing the distance between the first circuit board 32 and the wire 16 and between the second circuit board 34 and the one end of the motor body 22 away from the motor shaft 24, facilitating the electrical connection between the first circuit board 32 and the wire 16 and between the second circuit board 34 and the motor body 22.

[0043] Specifically, the second circuit board 34 is located on the side of the first circuit board 32 away from the winding disc 14, and the first circuit board 32 is provided with an avoiding hole 36 corresponding to the motor body 22. The one end of the motor body 22 away from the motor shaft 24 is provided with a plug-in part 38, and the second circuit board 34 is provided with a plug-in hole 40 corresponding thereto. The one end of the motor body 22 away from the motor shaft 24 passes through the avoiding hole 36, and the plug-in part 38 is inserted into the plug-in hole 40, so that the plug-in part 38 and the plug-in hole 40 are plug-in connected to realize the electrical connection between the motor 20 and the second circuit board 34.

[0044] It can be understood that the first circuit board 32 is fixed relative to the winding reel 14, which can be fixed relative to the base plate 28 of the winding reel 14 or fixed relative to the winding column 30 of the winding reel 14.

[0045] The side of the first circuit board 32 close to the second circuit board 34 is provided with a connector 42, the connector 42 includes a pin 44, and the side of the second circuit board 34 close to the first circuit board 32 is provided with a conductive part 46, the conductive groove is annular and extends along the circumferential direction of the winding reel 14, the pin 44 of the connector 42 is in contact with the conductive part 46, when the first circuit board 32 rotates with the winding reel 14, the elastic pin 44 of the connector 42 slides on the conductive part 46 and always maintains contact with the conductive part 46, so that the first circuit board 32 always maintains electrical connection with the second circuit board 34 during rotation. It can be understood that the conductive part 46 can be a conductive groove or a conductive protrusion.

[0046] When the charging device has a power supply for charging the electronic device, the motor 20 can be electrically connected with the power supply of the charging device, so as to provide the motor 20 with the electrical energy required for working, when the charging device does not have a power supply, that is, the charging device charges the electronic device through an external power supply, the power supply can be arranged inside or outside the shell 12 of the stretchable wire module 10, and the motor 20 is electrically connected with the power supply.

[0047] In an embodiment, the stretchable wire module 10 further includes a speed reduction mechanism 50, which is located in the shell 12 and in transmission cooperation with the winding reel 14. The speed reduction mechanism 50 can hinder the rotation of the winding reel 14 to some extent, so the speed reduction mechanism 50 can work together with the magnetic attraction force between the motor stator and the motor rotor to form a positioning effect on the wire 16, thereby improving the reliability of positioning.

[0048] The speed reduction mechanism 50 includes a gear tooth part 52 and a speed reduction gear 54, the gear tooth part 52 is fixed relative to the winding reel 14, and the gear teeth of the gear tooth part 52 are arranged along the rotation direction of the winding reel 14, and the speed reduction gear 54 is rotatably installed on the shell 12 and engaged with the gear tooth part 52. Specifically, the shell 12 is provided with a mounting shaft 55, and the speed reduction gear 54 is rotatably installed on the shell 12 through the mounting shaft 55. When the motor 20 is not working, the rotating winding reel 14 needs to drive the speed reduction gear 54 to rotate together, which needs to overcome the resistance such as friction force that hinders the rotation of the speed reduction gear 54, thereby increasing the difficulty of rotating the winding reel 14, so as to form a positioning effect on the wire 16.

[0049] It can be understood that the gear tooth part 52 can be directly arranged on the winding reel 14, or can be arranged on a gear fixedly connected with the winding reel 14, when the winding reel 14 is fixedly provided with a gear, the center shaft of the gear is collinear with the center shaft of the winding reel 14.

[0050] In the present application, the gear portion 52 is arranged on the winding reel 14, i.e. the gear portion 52 is a part of the winding reel 14. Specifically, the contour of the winding reel 14 is circular, and the gear portion 52 is arranged on the circumferential outer side of the winding reel 14. Compared with the mode of arranging a gear on the winding reel 14, the mode of arranging the gear portion 52 on the winding reel 14 can reduce the assembly difficulty, simplify the structure of the speed reduction mechanism 50, and reduce the space occupied by the speed reduction mechanism 50, so as to realize miniaturization.

[0051] Please refer to Figure 7 and Figure 8 Another embodiment of the utility model provides a telescopic wire module 10, further comprising a transmission mechanism 56, the motor 20 is located on one side of the axial direction of the winding reel 14, the circumferential direction of the motor shaft 24 is perpendicular to the axial direction of the winding reel 14, and the motor shaft 24 is in driving connection with the winding reel 14 through a transmission structure. The transmission mechanism 56 has the effect of reducing speed and increasing distance, i.e. reducing the rotating speed of the motor shaft 24 and increasing the torque of the motor shaft 24, which can not only reduce the rotating speed of the winding reel 14 to reduce the take-up speed, but also enable the motor 20 to output greater energy under the condition that the size of the motor 20 is the same, so as to ensure that the motor 20 can stably drive the winding reel 14 to rotate. Moreover, the motor shaft 24 is in driving connection with the winding reel 14 through the transmission mechanism 56, so that the axial direction of the motor shaft 24 is perpendicular to the axial direction of the winding reel 14, i.e. the motor 20 can be arranged transversely to the axial direction of the winding reel 14, which is conducive to reducing the overall thickness of the telescopic wire module 10.

[0052] The transmission structure comprises a transmission shaft 58 and a gear set 60. The transmission shaft 58 is fixed relative to the winding reel 14, the motor shaft 24 is in driving connection with the transmission shaft 58 through the gear set 60, and the axial direction of the motor shaft 24 is perpendicular to the axial direction of the transmission shaft 58. When the motor shaft 24 rotates, the gear set 60 is driven to rotate, and the transmission shaft 58 is driven to rotate by the gear set 60 and drives the winding reel 14 fixed thereto to rotate.

[0053] The specific number of gears included in the gear set 60 is not limited, which can be two or more than two, i.e. the gear set 60 at least includes one gear fixed relative to the motor shaft 24 and another gear fixed relative to the transmission shaft 58. The gears on the motor shaft 24 and the gears on the transmission shaft 58 can be directly engaged or can be drivingly connected through other gears.

[0054] It can be understood that the gear set 60 can be composed of a plurality of spur gears or bevel gears, can be composed of spur gears and bevel gears, or can be composed of a worm and a worm gear, as long as the effect of transmission can be achieved.

[0055] The specific way of achieving relative fixation between the transmission shaft 58 and the winding disc 14 is not limited, as long as the winding disc 14 cannot rotate relative to the transmission shaft 58, for example, the transmission shaft 58 and the winding disc 14 can be fixedly connected by a fixing member or glue, or the relative fixation can be achieved by setting a concave-convex structure or a flat position between the transmission shaft 58 and the winding disc 14.

[0056] Preferably, the telescopic wire module 10 further comprises a power supply 48 located outside the housing 12 and electrically connected with the motor 20. The power supply 48 can provide power for the operation of the motor 20, so that the motor 20 can work without being bound by the external power supply 48. The power supply 48 is, for example, a storage battery.

[0057] In the embodiment, the telescopic wire module 10 further comprises electrically connected first and second circuit boards 32 and 34, which are arranged along the axial direction of the winding disc 14. The first circuit board 32 is fixed relative to the winding disc 14 and electrically connected with the wire 16, and the second circuit board 34 is fixed relative to the housing 12 and electrically connected with the motor 20. The first and second circuit boards 32 and 34 are in contact with each other to form an electrically connected effect. The first and second circuit boards 32 and 34 are rotationally matched, and the first circuit board 32 always maintains contact with the second circuit board 34 during rotation relative to the second circuit board 34.

[0058] The first circuit board 32 is located between the wire 16 and the second circuit board 34, and the wire 16 is electrically connected with the first circuit board 32, and the motor 20 is electrically connected with the second circuit board 34. The first and second circuit boards 32 and 34 are located on one side of the winding disc 14, and the motor 20 is located on the other side of the winding disc 14 opposite to the first and second circuit boards 32 and 34. The winding disc 14 is located between the first circuit board 32 and the motor 20, so that it is relatively close to the middle part of the housing 12 in the axial direction, so that the wire 16 and the wire outlet 18 corresponding to the wire 16 are close to the middle part of the housing 12, thereby avoiding that the wire outlet 18 is close to the edge of the housing 12 and affects the overall strength of the housing 12. Moreover, the first circuit board 32 is closer to the wire 16 relative to the second circuit board 34, which facilitates the electrical connection between the wire 16 and the first circuit board 32.

[0059] In the embodiment, the motor 20 is located outside the housing 12, and a protective shell 62 is arranged outside the motor 20 to protect the motor 20. The protective shell 62 is located outside the housing 12 and is integrally formed with the housing 12, so as to fix the protective shell 62 outside the housing 12. The integrally formed manner can not only ensure the connection strength between the housing 12 and the protective shell 62, but also can save the assembly process between the housing 12 and the protective shell 62.

[0060] Please refer to Figure 9The utility model discloses a telescopic wire module 10, and the main difference between the telescopic wire module 10 in another embodiment lies in that the protective shell 62 is located on the outside of the shell body 12 and is detachably connected with the shell body 12, after the protective shell 62 is connected with the shell body 12, the protective shell 62 can be covered on the outside of the motor 20, thereby protecting the motor 20, after the protective shell 62 is separated from the shell body 12, the motor 20 can be exposed, so that the motor 20 can be detached, therefore, when the motor 20 fails, the motor 20 can be selected to be replaced, without replacing the winding disc 14 and the wire 16, when the winding disc 14 or the wire 16 is damaged, the winding disc 14 and the wire 16 can be selected to be replaced, without replacing the motor 20, which is favorable for reducing the cost.

[0061] The specific mode that the protective shell 62 is detachably connected with the shell body 12 is not limited, for example, the protective shell 62 and the shell body 12 can be buckled to realize the detachable effect, or the protective shell 62 and the shell body 12 can be connected through bolts to realize the detachable effect.

[0062] Please refer to Figure 10 In the application, the wire 16 comprises a wire body 64 and a plug 66, one end of the wire body 64 is fixedly connected with the winding disc 14 and is wound on the winding disc 14, the other end of the wire body 64 is extended outside the shell body 12 through the wire outlet 18, and the plug 66 is connected to the end of the wire body 64 outside the shell body 12, so that the plug 66 is located outside the shell body 12 to be connected with the electronic equipment.

[0063] The shell body 12 is provided with two stop blocks 68 which are spaced apart from each other at a position close to the wire outlet 18, the wire body 64 is located between the two stop blocks 68, and the spacing between the two stop blocks 68 is smaller than the width of the wire outlet 18. Preferably, the spacing between the two stop blocks 68 is slightly larger than the width of the wire body 64, for example, the spacing between the two stop blocks 68 is 0.5mm-1mm larger than the width of the wire body 64. The stop blocks 68 can limit the wire 16 during the extension and contraction of the wire 16, reduce the deviation of the wire 16 during the extension and contraction of the wire 16, and reduce the risk of wire jamming. Specifically, the wire 16 is flat, the width of the wire 16 is the size of the wire 16 in the axial direction of the winding disc 14, and the width of the wire outlet 18 is the size in the axial direction of the winding disc 14.

[0064] Preferably, the spacing between the two stop blocks 68 is larger than the width of the wire body 64 and smaller than the width of the plug 66, the width of the plug 66 refers to the maximum width, so that the stop blocks 68 can limit the wire body 64 and prevent the plug 66 from entering the inside of the shell body 12 through the wire outlet 18 to affect the use of the user.

[0065] In an embodiment, the charging device further comprises a housing and a charging module, the charging module and the retractable wire module 10 are installed in the housing, the retractable wire module 10 is provided with a connecting end electrically connected with the wire 16, and the charging module 10 is electrically connected with the connecting end, so as to realize the electrical connection with the wire 16.

[0066] Preferably, the connecting end can be arranged on a second circuit board 34 fixed relative to the shell 12, the wire 16 is connected with the connecting end of the second circuit board 34 through the first circuit board 32, and the charging module is electrically connected with the connecting end on the second circuit board 34, so as to finally realize the electrical connection between the charging module and the wire 16. Arranging the connecting end on the second circuit board 34 can reduce the distance between the connecting end and the outer surface of the shell 12, and facilitate the electrical connection between the charging module and the wire 16.

[0067] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the range of protection of the utility model, and any non-substantial changes and replacements made by the person skilled in the art on the basis of the utility model all belong to the range of protection required by the utility model.

Claims

1. A charging device, characterized by, The charging module and the telescopic wire module are installed into the shell, the telescopic wire module comprises a shell body, a winding drum rotatably installed inside the shell body, a wire wound on the winding drum and having one end extending out of the shell body, and a motor, the motor comprises a motor body and a motor shaft, the motor body is installed to the shell body, the motor shaft is in transmission connection with the winding drum to drive the winding drum to rotate, the telescopic wire module is provided with a connecting end electrically connected with the wire, and the charging module is electrically connected with the connecting end.

2. The charging device of claim 1, wherein, The winding drum comprises a base plate and a winding column located on one side of the base plate, the wire is wound on the winding column, the winding column is provided with a receiving hole, the motor body is at least partially received in the receiving hole, and the motor shaft is relatively fixed with the winding column.

3. The charging device of claim 2, wherein, The telescopic wire module further comprises electrically connected first and second circuit boards, the first and second circuit boards are in contact and rotationally matched with each other, the first circuit board is relatively fixed with the winding drum and electrically connected with the wire, the second circuit board is located on the side of the first circuit board away from the wire and is relatively fixed with the shell body, the first and second circuit boards are located at the end of the winding drum away from the motor, and the first circuit board is located between the wire and the second circuit board.

4. The charging device of claim 3, wherein, The first circuit board is provided with an avoiding hole, the motor body is provided with an inserting part protruding from the end thereof away from the motor shaft, the second circuit board is provided with an inserting hole, the end of the motor body away from the motor shaft passes through the avoiding hole, and the inserting part is in inserting and matching connection with the inserting hole.

5. The charging device of claim 2, wherein, The telescopic wire module further comprises a speed reduction mechanism located in the shell body, the speed reduction mechanism comprises a gear tooth part relatively fixed with the winding drum and a speed reduction gear rotatably installed on the shell body, gear teeth of the gear tooth part are arranged along the rotation direction of the winding drum, and the speed reduction gear is in meshing connection with the gear tooth part.

6. The charging device of claim 1, wherein, The telescopic wire module further comprises a transmission mechanism, the motor is located on one side of the winding drum in the axial direction, the transmission mechanism comprises a transmission shaft and a gear set, the transmission shaft is relatively fixed with the winding drum, the motor shaft is in transmission connection with the transmission shaft through the gear set, and the axial direction of the motor shaft is perpendicular to the axial direction of the transmission shaft.

7. The charging device of claim 6, wherein, The telescopic wire module further comprises electrically connected first and second circuit boards, the first and second circuit boards are in contact and rotationally matched with each other, the first circuit board is relatively fixed with the winding drum and electrically connected with the wire, the second circuit board is relatively fixed with the shell body and electrically connected with the motor body, the first and second circuit boards are located at the end of the winding drum away from the motor, and the first circuit board is located between the wire and the second circuit board.

8. The charging device of claim 6, wherein, The motor is located outside the shell body, a protective shell is arranged on the outside of the motor, and the protective shell is in detachable connection with the shell body.

9. The charging device according to any one of claims 1 to 8, characterized in that, The telescopic wire module further comprises a power supply, the motor is electrically connected with the power supply; and / or, The wire comprises a wire body and a plug connected to one end of the wire body, the shell is provided with a wire outlet, one end of the wire body passes through the wire outlet, and the plug is located outside the wire outlet, the shell is provided with two mutually spaced stop blocks near the wire outlet, the wire is located between the two stop blocks, and the spacing between the two stop blocks is smaller than the width of the wire outlet.

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