A telescopic cable mechanism and a portable power supply containing the same.

Abstract

This invention discloses a telescopic cable mechanism and a portable power supply containing the same. The telescopic cable mechanism includes a housing, a moving component, a charging cable, and an elastic element. The housing has a first inner side and a second inner side that are far apart from each other, and a plurality of first winding posts arranged in a row. The moving component is connected to the housing and can reciprocate in the direction from the first inner side to the second inner side. The moving component includes a plurality of second winding posts, which are arranged in the same direction as the first winding posts. The charging end of the charging cable is exposed outside the housing. The charging cable extends towards a corresponding second winding post after passing around a first winding post, and then extends towards another corresponding first winding post after passing around a second winding post, thereby forming a continuous and alternating winding path. The elastic element acts on the moving component, providing a pulling force to the moving component in the direction of the second inner side. When the charging end is pulled, the moving component moves towards the direction of the first inner side to adjust the length of the charging cable extending out of the housing.

Description

Technical Field

[0001] This application relates to the field of mobile power bank technology, specifically to a retractable cord mechanism and a mobile power bank containing the same. Background Technology

[0002] Currently, most common retractable charging cable solutions on the market use torsion springs as the retraction power source, achieving the retractable function by winding the charging cable around a central axis. However, this traditional technical solution has the following drawbacks: First, the connector of the charging cable rotates along with the cable during winding, requiring additional conductive components to achieve current transmission. This structure not only increases the complexity of the device but may also lead to poor contact or wear, affecting transmission stability and service life.

[0003] Secondly, in the existing technology, the connecting end of the charging retractable cable is first soldered to the circuit board of the reel. Inside the charging device (such as a charger, power bank, etc.), there is another circuit board that is electrically connected to the circuit board of the reel. These two circuit boards are electrically connected through conductive terminals and annular conductive plates, so that the charging retractable cable can maintain electrical connection with the charging device during the rotation of the reel. However, this complex connection method results in a large resistance of the charging retractable cable, and when the charging retractable cable is stretched outward during use, the connecting end (i.e., the soldered position) of the charging retractable cable is easily torn off. In addition, the charging retractable cable is subjected to torsional stress during repeated rotation, which makes it prone to breakage due to fatigue, significantly shortening the service life of the cable. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this application provides a telescopic cable mechanism, comprising: a housing, the interior of which has a first inner side and a second inner side that are far apart from each other, and a plurality of first winding posts arranged in a row, the first winding posts being adjacent to the first inner side; a movable component connected to the housing, capable of reciprocating in the direction from the first inner side to the second inner side; the movable component includes a plurality of second winding posts arranged in a row, the second winding posts having the same arrangement direction as the first winding posts; a charging cable, the first end of which is a charging end exposed outside the housing, and the last end of which is a terminal and fixed relative to the housing, the charging cable extending towards a corresponding second winding post after passing around a first winding post, and then extending towards another corresponding first winding post after passing around a second winding post, thereby forming a continuous and alternating winding path; and an elastic member acting on the movable component, providing a pulling force to the movable component to move towards the second inner side; when the charging end is pulled, the movable component moves towards the first inner side to adjust the length of the charging cable extending out of the housing.

[0005] In some embodiments, the telescopic line mechanism further includes a locking component that acts on the movable component to restrict or allow movement of the movable component.

[0006] In some embodiments, the locking assembly includes: a locking plate located between a first inner side and a second inner side; the locking plate having interconnected extension channels, multiple locking positions, and a reset channel along its length; and a locking member having a connecting end and a sliding end, the connecting end of the locking member being connected to a moving component so that the locking member moves synchronously with the moving component; the sliding end being switchable between the extension channels, the reset channel, and the multiple locking positions; and when the sliding end is in the locking position, the length of the charging cable extending out of the housing remains unchanged.

[0007] In some embodiments, the extension channel includes a plurality of sequentially connected extension sections in its length direction; the extension sections include: a first longitudinal channel, which is straight; a first turning channel, the first end of which is connected to the first longitudinal channel and is inclined relative to the first longitudinal channel; a second longitudinal channel, which is straight and connected to the second end of the first turning channel, and the second longitudinal channel is parallel to the first longitudinal channel; and a second turning channel, which connects the second longitudinal channel and another adjacent first longitudinal channel.

[0008] In some embodiments, the extension channel and the reset channel are located at two opposite edges along the length of the locking plate; the locking plate further includes: a switching channel, the same number as the extension sections, distributed along the length of the locking plate; the switching channel connects the extension channel and the reset channel; a locking block, the same number as the extension sections, is disposed between at least two adjacent switching channels; the locking position is a groove-shaped structure, disposed on the side of the locking block near the switching channel; the end of the locking block near the switching channel also has a guide protrusion, which guides the sliding end into the locking position.

[0009] In some embodiments, the housing includes: a bottom shell, including a bottom panel, and a first transverse side plate, a second transverse side plate, a first longitudinal side plate, and a second longitudinal side plate that are perpendicular to and surround the bottom panel in the circumference, wherein a first winding post is perpendicular to the bottom panel; the first transverse side plate and the second transverse side plate are parallel, wherein the inner side of the first transverse side plate is a first inner side surface, and the inner side of the second transverse side plate is a second inner side surface; the first longitudinal side plate and the second longitudinal side plate are parallel and perpendicular to the first transverse side plate and the second transverse side plate; and a top cover disposed on the top of the bottom shell.

[0010] In some embodiments, a portion of the bottom panel serves as a locking plate, and the extension channel, multiple locking positions, and reset channel are all located on the outer side of the bottom panel.

[0011] In some embodiments, the movable component includes: a first movable member, at least partially disposed between the bottom shell and the top cover; a second movable member, located outside the bottom panel and connected to both ends of the first movable member; a connecting end of a locking member rotatably connected to the side of the second movable member away from the bottom panel; and a second winding post disposed between the first movable member and the second movable member.

[0012] In some embodiments, the elastic element is disposed on the outer side of the second transverse side plate, and both ends of the elastic element are connected to the movable component.

[0013] This application also provides a power bank, comprising: a protective shell having a receiving space; a retractable cable mechanism disposed in the receiving space; a control motherboard disposed in the receiving space and electrically connected to the terminal of the charging cable; and a battery cell disposed in the receiving space and electrically connected to the control motherboard.

[0014] The beneficial effects of this application are as follows: This invention discloses a telescopic cable mechanism and a mobile power supply containing the same. The telescopic cable mechanism includes a housing, a moving component, a charging cable, and an elastic element. The housing has a first inner side and a second inner side that are far apart from each other, and a plurality of first winding posts arranged in a row. The moving component is connected to the housing and can reciprocate in the direction from the first inner side to the second inner side. The moving component includes a plurality of second winding posts, which are arranged in the same direction as the first winding posts. The charging end of the charging cable is exposed outside the housing. The charging cable extends towards the corresponding second winding post after passing around a first winding post, and then extends towards another corresponding first winding post after passing around a second winding post, thereby forming a continuous and alternating winding path. The elastic element acts on the moving component, providing a pulling force to the moving component to move towards the second inner side. When the charging end is pulled, the moving component moves towards the first inner side to adjust the length of the charging cable extending out of the housing.

[0015] Furthermore, the charging cable inside the telescopic cable mechanism uses a longitudinal winding method instead of a traditional torsion structure (such as a torsion spring), which reduces the risk of the copper wires inside the charging cable breaking due to repeated rotation and extends the service life of the charging cable; the terminal of the charging cable is directly connected to the control board of the power bank, resulting in low resistance; and the longitudinal winding arrangement of the charging cable also reduces the risk of the terminal of the charging cable detaching from the control board when the cable is stretched. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0017] Figure 1A This is a perspective view of an embodiment of a telescopic wire mechanism according to the present invention;

[0018] Figure 1B This is a perspective view of an embodiment of a telescopic wire mechanism of the present invention after the top cover has been removed;

[0019] Figure 1C This is a schematic diagram of the bottom shell in one embodiment of a telescopic wire mechanism of the present invention;

[0020] Figure 1D This is a schematic diagram of the top cover in one embodiment of a telescopic wire mechanism of the present invention;

[0021] Figure 1E This is a side view of an embodiment of a telescopic wire mechanism according to the present invention;

[0022] Figure 1F This is a perspective view of the moving component in one embodiment of a telescopic wire mechanism according to the present invention;

[0023] Figure 1G This is a perspective view of the first moving member in an embodiment of a telescopic wire mechanism of the present invention;

[0024] Figure 1H This is a three-dimensional schematic diagram of the second moving member in one embodiment of a telescopic line mechanism of the present invention;

[0025] Figure 1I This is a schematic diagram showing the connection between the moving component and the locking component in one embodiment of a telescopic line mechanism according to the present invention;

[0026] Figure 1J This is a schematic diagram of a locking component in one embodiment of a telescopic wire mechanism according to the present invention;

[0027] Figure 1K This is a perspective view of the locking element in one embodiment of a telescopic wire mechanism according to the present invention;

[0028] Figure 1L This is a schematic diagram of the bottom panel in one embodiment of a telescopic wire mechanism of the present invention;

[0029] Figure 1M yes Figure 1L A magnified view of a portion of region A in the middle;

[0030] Figure 1N This is a schematic diagram of the position of the sliding end during the movement process in a telescopic wire mechanism of the present invention;

[0031] Figure 10 This is a schematic diagram of an embodiment of a telescopic cable mechanism of the present invention, in which the extension length remains unchanged after the charging end is pulled out;

[0032] Figure 1P This is a schematic diagram showing the distribution of charging cables in one embodiment of a telescopic cable mechanism of the present invention;

[0033] Figure 2A This is a perspective view of an embodiment of a portable power bank according to the present invention in one direction;

[0034] Figure 2BThis is a perspective view of an embodiment of a portable power bank according to the present invention from another direction;

[0035] Figure 2C This is an exploded view of an embodiment of a portable power bank according to the present invention.

[0036] Reference numerals: 100, telescopic cable mechanism; 10, housing; 11, bottom shell; 111, bottom panel; 1111, longitudinal slide groove; 112, first transverse side plate; 113, second transverse side plate; 114, first longitudinal side plate; 115, second longitudinal side plate; 116, first winding post; 117, first inner side surface; 1171, first wire through hole; 1172, second wire through hole; 118, second inner side surface; 12, top cover; 121, first positioning hole; 122, connecting ear; 13, sliding gap; 20, moving assembly; 21, first moving member; 211, first transverse plate-like part; 2111, clearance groove; 212, lateral sliding part; 213, second winding post; 22, second moving member; 221, connecting hole; 222, second positioning hole; 30, charging cable; 31, charging end; 32, terminal; 40, spring. 50. Locking assembly; 51. Locking plate; 516. Extension channel; 511. Extension section; 5111. First longitudinal channel; 5112. First steering channel; 5113. Second longitudinal channel; 5114. Second steering channel; 512. Locking position; 513. Reset channel; 514. Switching channel; 515. Locking block; 5151. Guide protrusion; 52. Locking component; 521. Connecting end; 522. Sliding end; 61. First position; 62. Second position; 63. Third position; 64. Fourth position; 65. Fifth position; 66. Sixth position; 67. Seventh position; 68. Eighth position; 200. Power bank; 201. Protective shell; 2011. First cover; 2012. Second cover; 202. Control motherboard; 203. Battery cell; 204. Power button; 205. Charging interface. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other alternative implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] This application provides a telescopic cable mechanism 100, which can be used in charging devices to facilitate the storage of charging cables. Charging devices include, for example, data cables, chargers, and power banks. This application uses a power bank 200 as an example for illustration. The charging cable 30 inside the telescopic cable mechanism 100 is arranged in a longitudinal winding manner instead of a traditional torsion structure (such as a torsion spring). This reduces the risk of the copper wires inside the charging cable 30 breaking due to repeated rotation, extending the service life of the charging cable 30. Furthermore, the terminal 32 of the charging cable 30 is directly electrically connected to the control motherboard 202 of the power bank 200, resulting in lower resistance. The longitudinal winding arrangement of the charging cable 30 also reduces the risk of the terminal 32 of the charging cable 30 detaching from the control motherboard 202 when the cable is stretched.

[0039] like Figures 1A to 1P As shown, in one embodiment of the telescopic cable mechanism 100, the telescopic cable mechanism 100 includes a housing 10, a moving component 20, a charging cable 30, and an elastic element 40; wherein, the interior of the housing 10 has a first inner surface 117 and a second inner surface 118 that are far apart from each other, and a plurality of first winding posts 116 arranged in a row, the first winding posts 116 being adjacent to the first inner surface 117; the moving component 20 is connected to the housing 10 and can reciprocate in the direction from the first inner surface 117 to the second inner surface 118; as Figure 1P As shown, the moving component 20 includes a plurality of second winding posts 213 arranged in a row. The second winding posts 213 are arranged in the same direction as the first winding posts 116. When the moving component 20 abuts against the first inner side surface 117, it stops moving. The first winding posts 116 and the second winding posts 213 are arranged in a row and are distributed in a crisscross pattern. The first end of the charging cable 30 is the charging terminal 31, which is exposed outside the housing 10, and the last end is the wiring terminal 32, which is fixed relative to the housing 10. Figure 1P As shown, the charging cable 30 extends to the corresponding second winding post 213 after passing around a first winding post 116, and then extends to the corresponding second winding post 213 after passing around the second winding post 213, thereby forming a continuous and alternating winding path; the elastic member 40 acts on the moving component 20, providing a pulling force to the moving component 20 in the direction of the second inner side surface 118; when the charging end 31 is pulled, the moving component 20 moves in the direction of the first inner side surface 117 to adjust the length of the charging cable 30 extending out of the housing 10.

[0040] In this embodiment, the connector 32 at the tail of the charging cable 30 is fixed to the housing 10, and the charging end 31 at the head of the charging cable 30 is exposed outside the housing 10. When the user pulls the charging end 31 of the charging cable 30, the charging cable 30 drives the moving component 20 to move from the second inner side 118 towards the first inner side 117, and the length of the charging cable 30 extending out of the housing 10 increases. When the user releases the charging end 31 of the charging cable 30, the moving component 20 moves towards the second inner side 118 under the action of the elastic member 40, and the charging cable 30 retracts into the housing 10. Furthermore, the charging cable 30 is wound on the first winding post 116 and the second winding post 213 and forms a continuous and alternating winding path inside the housing 10, which can reduce the risk of copper wire breakage inside the charging cable 30 and extend the service life of the charging cable 30. Secondly, this arrangement of the charging cable 30 will not cause an increase in the resistance of the charging cable 30 or signal attenuation, which is beneficial for current transmission and communication of large amounts of data.

[0041] Furthermore, such as Figure 1C and Figure 1D As shown, the housing 10 includes a bottom shell 11 and a top cover 12. The bottom shell 11 includes a bottom panel 111 and a first transverse side plate 112, a second transverse side plate 113, a first longitudinal side plate 114, and a second longitudinal side plate 115 that are perpendicular to and surround the bottom panel 111. The first transverse side plate 112 and the second transverse side plate 113 are parallel. The inner side of the first transverse side plate 112 is a first inner side surface 117, and the inner side of the second transverse side plate 113 is a second inner side surface 118. A plurality of first winding posts 116 are vertically fixed to the bottom panel 111 and adjacent to the first transverse side plate 112. The first longitudinal side plate 114 and the second longitudinal side plate 115 are parallel and perpendicular to the first transverse side plate 112 and the second transverse side plate 113. The top cover 12 is disposed on the top of the bottom shell 11.

[0042] Preferred, such as Figure 1E As shown, the height of the first transverse side plate 112 and the second transverse side plate 113 is greater than the height of the first longitudinal side plate 114 and the second longitudinal side plate 115, so that there is a sliding gap 13 between the top cover 12 and the bottom shell 11.

[0043] Preferred, such as Figure 1C As shown, the first transverse side plate 112 is also provided with a first wire passage hole 1171 and a second wire passage hole 1172 for the charging cable 30 to pass through. The charging end 31 is exposed in the first wire passage hole 1171, and the wiring end 32 is exposed in the second wire passage hole 1172 and fixed to the surface of the housing 10.

[0044] Furthermore, in Figure 1DIn the middle, the top cover 12 is also provided with a plurality of first positioning holes 121 that are adapted to the first winding post 116. The top of the first winding post 116 can be inserted into the first positioning hole 121 and kept flush with the surface of the top cover 12, so that the top cover 12 can be positioned during assembly and avoid displacement.

[0045] Furthermore, such as Figures 1F to 1I As shown, the movable component 20 includes a first movable member 21, a second movable member 22, and a second winding post 213. The first movable member 21 is at least partially disposed between the bottom shell 11 and the top cover 12. The second movable member 22 is located on the outside of the bottom panel 111 and is connected to both ends of the first movable member 21. The connecting end 521 of the locking member 52 is rotatably connected to the side of the second movable member 22 away from the bottom panel 111. The second winding post 213 is disposed between the first movable member 21 and the second movable member 22.

[0046] Specifically, the first moving member 21 includes a first transverse plate-shaped portion 211 and lateral sliding portions 212 disposed on both sides of the first transverse plate-shaped portion 211; the first transverse plate-shaped portion 211 is located between the bottom shell 11 and the top cover 12, one of the lateral sliding portions 212 slides with the outer side of the first longitudinal side plate 114, and the other lateral sliding portion 212 slides with the outer side of the second longitudinal side plate 115, so that the first moving member 21 can slide along the first longitudinal side plate 114 and the second longitudinal side plate 115 of the bottom shell 11, thereby driving the second moving member 22 to move synchronously.

[0047] The second movable component 22 is located outside the bottom panel 111 and parallel to the first transverse plate-shaped portion 211. Both ends of the second movable component 22 are respectively connected to a lateral sliding portion 212. Preferably, the second movable component 22 and the lateral sliding portion 212 are detachably connected, for example by plugging or snapping, so as to facilitate the assembly and disassembly of the movable component 20.

[0048] One end of the second winding post 213 is perpendicular to the first transverse plate-shaped portion 211, and the other end of the second winding post 213 is perpendicular to the second moving member 22, such as Figure 1C As shown, the bottom panel 111 is provided with a longitudinal groove 1111 through which the second winding post 213 passes. During the movement of the moving component 20, the second winding post 213 slides in the longitudinal groove 1111.

[0049] like Figure 1GAs shown, in this embodiment, the second winding post 213 is fixed to the first transverse plate-shaped portion 211, and the second moving member 22 is provided with a second positioning hole 222 adapted to the second winding post 213. The bottom of the second winding post 213 can be inserted into the second positioning hole 222 and kept flush with the surface of the second moving member 22. In some other embodiments, the second winding post 213 can also be fixed to the second moving member 22, and the first transverse plate-shaped portion 211 is provided with a second positioning hole 222 adapted to the second winding post 213.

[0050] Preferred, such as Figure 1F As shown, the first transverse plate-shaped portion 211 is also provided with a clearance groove 2111 that is adapted to the first winding post 116 along its length direction. The clearance groove 2111 is strip-shaped. When the moving component 20 moves from the second inner side 118 to the first inner side 117, the moving component 20 can move further closer to the first inner side 117 with the help of the clearance groove 2111. When the moving component 20 stops moving after hitting the first inner side 117, the first winding post 116 and the second winding post 213 are arranged in a row and are distributed in a cross pattern. At this time, the length of the charging cable 30 extending out of the housing 10 reaches its maximum.

[0051] Furthermore, in combination Figure 1B , Figure 1I as well as Figure 10 As shown, the elastic member 40 is disposed on the outer side of the second transverse side plate 113, and both ends of the elastic member 40 are respectively connected to the moving component 20. Specifically, both ends of the elastic member 40 are fixedly connected to a lateral sliding part 212, and the connection method is, for example, direct sleeve, screw locking, or glue adhesion. In the non-use state, the moving component 20 is elastically stretched by the elastic member 40 and limited to the position of the second inner side 118. Preferably, the elastic member 40 is a rubber band or a spring, which has a simple structure, low cost, and is convenient for maintenance and replacement. When the elastic member 40 is a rubber band, the width of the elastic member 40 is greater than or equal to 1 / 2 of the height of the lateral sliding part 212, providing sufficient elasticity while also preventing the moving component 20 from tilting easily during the pulling process. In other embodiments, the elastic member 40 can also be fixedly connected to the second moving member 22, as long as it can provide the moving component 20 with the elastic force for reset.

[0052] Furthermore, to enable the charging cable 30 to be fixed in multiple positions after being pulled out to adapt to different extension length scenarios, and to automatically retract after being pulled again, the telescopic cable mechanism 100 also includes a locking component 50, which acts on the moving component 20 to restrict or allow the moving component 20 to move.

[0053] like Figures 1J to 1O As shown, the locking assembly 50 includes a locking member 52 and a locking plate 51. Figure 1KIn this embodiment, the locking member 52 is door-shaped and has a connecting end 521 and a sliding end 522. In this embodiment, the locking member 52 is, for example, a locking pin, including a main body in the shape of a long rod. The connecting end 521 and the sliding end 522 are short rod structures vertically connected to both ends of the main body, and the connecting end 521 and the sliding end 522 are arranged in parallel. The locking member 52 can be formed by bending the same metal rod to form the above structure. The connecting end 521 of the locking member 52 is connected to the moving component 20, so that the locking member 52 moves synchronously with the moving component 20. Specifically, the second moving component 22 is provided with a connecting hole 221. The locking member 52 is located on the side of the second moving component 22 away from the bottom panel 111. The connecting end 521 of the locking member 52 is rotatably connected to the connecting hole 221, so that the sliding end 522 of the locking member 52 can deflect with the connecting end 521 as the rotation center.

[0054] Furthermore, the locking plate 51 is located between the first inner side 117 and the second inner side 118, as shown below. Figure 1M As shown, the locking plate 51 is provided with an interconnected extension channel 516, multiple locking positions 512 and a reset channel 513 along its length direction; the sliding end 522 of the locking member 52 can switch between the extension channel 516, the reset channel 513 and the multiple locking positions 512; when the sliding end 522 is in the locking position 512, the length of the charging cable 30 extending out of the housing 10 remains unchanged.

[0055] Specifically, when the charging end 31 is pulled, the sliding end 522 moves within the extension channel 516, adjusting the length of the charging cable 30 extending out of the housing 10. After the charging end 31 is released, the sliding end 522 switches from the extension channel 516 to an adjacent locking position 512, keeping the length of the charging cable 30 extending out of the housing 10 constant. When the charging end 31 is pulled again, the sliding end 522 switches from the locking position 512 to the reset channel 513 and finally moves back to the extension channel 516. In this embodiment, multiple locking positions 512 are arranged along the length of the locking plate 51, thus providing multiple selectable lengths for the charging cable 30 extending out of the housing 10, thereby meeting the needs of different extension length scenarios.

[0056] Preferably, in this embodiment, a portion of the bottom panel 111 serves as the locking plate 51, and the extension channel 516, multiple locking positions 512, and reset channel 513 are all located on the outside of the bottom panel 111.

[0057] Furthermore, in this embodiment, the extension channel 516 and the reset channel 513 are located at two opposite edges along the length of the locking plate 51, and the beginning and end of the extension channel 516 and the beginning and end of the reset channel 513 are connected.

[0058] Furthermore, the extension channel 516 includes a plurality of sequentially connected extension sections 511 in its length direction; the extension section 511 includes a first longitudinal channel 5111, a first turning channel 5112, a second longitudinal channel 5113, and a second turning channel 5114; wherein, the first longitudinal channel 5111 is straight; the first end of the first turning channel 5112 is connected to the first longitudinal channel 5111 and is inclined relative to the first longitudinal channel 5111; the second longitudinal channel 5113 is straight and is connected to the second end of the first turning channel 5112, and the second longitudinal channel 5113 is parallel to the first longitudinal channel 5111; the second turning channel 5114 connects the second longitudinal channel 5113 and another adjacent first longitudinal channel 5111.

[0059] like Figure 1M and Figure 1N As shown, the initial position of the sliding end 522 of the locking member 52 is located at the end of the first longitudinal channel 5111, i.e., at the first point 61. When the charging cable 30 is pulled, the sliding end 522 of the locking member 52 moves along the first longitudinal channel 5111 and enters the second longitudinal channel 5113 through the first turning channel 5112, and then enters the first turning channel 5112 of the next extension section 511 after passing through the second turning channel 5114. The second point 62 is a position of the sliding end 522 when it moves in the first longitudinal channel 5111. The third point 63 is the position of the sliding end 522 in the first turning channel 5112 of the second extension section 511. When the sliding end 522 reaches the second turning channel 5114 of the last extension section 511, the length of the charging cable 30 extending out of the housing 10 reaches its maximum.

[0060] Furthermore, the locking plate 51 also includes a switching channel 514 and a locking block 515 disposed between the extension channel 516 and the reset channel 513. The number of switching channels 514 and locking blocks 515 is the same as the number of extension sections 511. The switching channel 514 is distributed along the length direction of the locking plate 51, connecting the extension channel 516 and the reset channel 513. The sliding end 522 of the locking member 52 enters the locking position 512 from the extension section 511 through the switching channel 514, or enters the extension channel 516 from the locking position 512.

[0061] The locking block 515 is provided between at least two adjacent switching channels 514; the locking position 512 has a V-shaped groove structure and is provided on the side of the locking block 515 near the switching channel 514; the end of the locking block 515 near the switching channel 514 also has a guide protrusion 5151, which is used to guide the sliding end 522 into the locking position 512.

[0062] When the charging end 31 is released, the guide protrusion 5151 guides the sliding end 522 to enter the locking position 512 through the switching channel 514. Figure 1M In the process, after the charging end 31 is released, the sliding end 522 moves from the third position 63 to the fourth position 64, and then to the fifth position 65. The fifth position 65 indicates that the sliding end 522 has entered the locked position 512. After the charging end 31 is pulled again, the sliding end 522 moves from the locked position 512 to the reset channel 513 through the switching channel 514. That is, the sliding end 522 moves from the fifth position 65 to the sixth position 66. Finally, the sliding end 522 returns to the first position 61 after passing the seventh position 67 and the eighth position 68.

[0063] See Figure 1N and Figure 10 When the operator pulls the charging end 31, causing the sliding end 522 of the locking member 52 to be stretched to the first longitudinal channel 5111 of the second extension section 511, the operator releases the charging end 31. Under the action of the elastic member, the sliding end 522 enters the switching channel 514 and is guided to the locking position 512 under the action of the guide protrusion 5151. At this time, the length of the charging cable 30 extending out of the housing 10 remains unchanged. When the charging end 31 is pulled again, the sliding end 522 moves from the locking position 512 through the switching channel 514 into the reset channel 513, and finally slides to the extension channel 516 under the action of the elastic member. Similarly, when the sliding end 522 of the locking member 52 is stretched to other extension sections 511, locking and resetting are also performed in the above manner, which will not be described in detail here.

[0064] like Figures 2A to 2C As shown, this application also provides a power bank 200, which includes a protective shell 201, the aforementioned telescopic cable mechanism 100, a control motherboard 202, and a battery cell 203. The protective shell 201 is, for example, the outer shell of the power bank 200, and has an accommodating space. The telescopic cable mechanism 100 is disposed in the accommodating space. The control motherboard 202 is disposed in the accommodating space and is electrically connected to the terminal 32 of the charging cable 30. The battery cell 203 is disposed in the accommodating space and is electrically connected to the control motherboard 202.

[0065] Furthermore, such as Figure 1D As shown, the top cover 12 is provided with a connecting ear 122 in the circumferential direction. The control motherboard 202 is fixedly connected to the connecting ear 122, thereby fixing the housing 10 and the control motherboard 202 relative to each other.

[0066] Furthermore, the protective housing 201 includes a first cover 2011 and a second cover 2012 that are detachably connected, thereby facilitating installation and removal.

[0067] Furthermore, the control motherboard 202 also has a charging interface 205 and a power button 204. The charging interface 205 and the power button 204 are exposed outside the protective shell 201. The charging interface 205 can charge the battery cell 203, and the power button 204 can control whether the power bank 200 charges external devices.

[0068] Finally, it should be noted that if any directional indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of this application, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0069] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0070] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A telescopic line mechanism, characterized in that, include: The housing has a first inner side and a second inner side that are far apart from each other, and a plurality of first winding posts arranged in a row, the first winding posts being adjacent to the first inner side. A movable component, connected to the housing, is capable of reciprocating in the direction from the first inner side to the second inner side; the movable component includes a plurality of second winding posts arranged in a row, the second winding posts having the same arrangement direction as the first winding posts; The charging cable has a charging end at the beginning, which is exposed outside the housing, and a wiring end at the end, which is fixed relative to the housing. The charging cable extends to the corresponding second winding post after passing around one of the first winding posts, and then extends to the corresponding other first winding post after passing around the second winding post, thereby forming a continuous and alternating winding path. An elastic element acts on the movable component, providing a pulling force to the movable component to move towards the second inner side; when the charging end is pulled, the movable component moves towards the first inner side to adjust the length of the charging cable extending out of the housing; The telescopic line mechanism further includes a locking component, which acts on the moving component to restrict or allow the moving component to move; The locking component includes: A locking plate is located between a first inner side and a second inner side; the locking plate is provided with interconnected extending channels, multiple locking positions and a reset channel along its length. A locking member has a connecting end and a sliding end. The connecting end of the locking member is connected to the moving component, so that the locking member moves synchronously with the moving component. The sliding end can switch between the extension channel, the reset channel, and multiple locking positions. When the sliding end is in the locking position, the length of the charging cable extending out of the housing remains unchanged.

2. The telescopic line mechanism according to claim 1, characterized in that, The extension channel includes a plurality of sequentially connected extension segments along its length; the extension segments include: The first longitudinal channel is straight. A first steering channel, the first end of which is connected to the first longitudinal channel and is inclined relative to the first longitudinal channel; The second longitudinal channel is straight and connects to the second end of the first turning channel, and the second longitudinal channel is parallel to the first longitudinal channel; The second turning channel connects the second longitudinal channel and another adjacent first longitudinal channel.

3. The telescopic line mechanism according to claim 2, characterized in that, The extension channel and the reset channel are located at two opposite edges along the length of the locking plate; The locking plate also includes: The switching channels, in the same number as the extension sections, are distributed along the length of the locking plate; the switching channels connect the extension channels and the reset channels. The locking blocks, in the same number as the extension sections, are disposed between at least two adjacent switching channels; the locking position has a groove-shaped structure and is disposed on the side of the locking block near the switching channel; the end of the locking block near the switching channel also has a guide protrusion, which is used to guide the sliding end into the locking position.

4. The telescopic line mechanism according to any one of claims 1 to 3, characterized in that, The housing includes: The bottom shell includes a bottom panel, and a first transverse side plate, a second transverse side plate, a first longitudinal side plate, and a second longitudinal side plate that are perpendicular to and surround the bottom panel around its circumference. The first winding post is perpendicular to the bottom panel. The first transverse side plate and the second transverse side plate are parallel, with the inner side of the first transverse side plate serving as the first inner side surface and the inner side of the second transverse side plate serving as the second inner side surface. The first longitudinal side plate and the second longitudinal side plate are parallel and perpendicular to the first transverse side plate and the second transverse side plate. A top cover is disposed on top of the bottom shell.

5. The telescopic line mechanism according to claim 4, characterized in that, A portion of the bottom panel serves as the locking plate, and the extension channel, multiple locking positions, and reset channel are all located on the outside of the bottom panel.

6. The telescopic line mechanism according to claim 5, characterized in that, The moving component includes: The first movable component is at least partially disposed between the bottom shell and the top cover; The second movable member is located on the outside of the bottom panel and is connected to both ends of the first movable member; the connecting end of the locking member is rotatably connected to the side of the second movable member away from the bottom panel. The second winding post is disposed between the first moving member and the second moving member.

7. The telescopic line mechanism according to claim 4, characterized in that, The elastic element is disposed on the outer side of the second transverse side plate, and both ends of the elastic element are connected to the moving component.

8. A portable power bank, characterized in that, include: A protective shell having an accommodating space; The telescopic wire mechanism according to any one of claims 1-7 is disposed in the accommodating space; A control motherboard is disposed in the accommodating space and electrically connected to the terminal of the charging cable; The battery cell is disposed in the accommodating space and electrically connected to the control motherboard.

Images