Charging wire assembly and mobile power supply

Abstract

The utility model provides a charging wire assembly and a mobile power supply. The charging wire assembly comprises a wire body, a first joint, a second joint and a fastener. The first connector is arranged at one end of the wire body and is configured to be electrically connected with a mobile power supply. The second connector is arranged at the other end of the wire body, the second connector is detachably connected to the first connector, and the second connector is configured to be electrically connected with external equipment. The fastener is connected with the wire body and is configured to be detachably installed on the mobile power supply. The part, between the fastener and the first connector and / or the part, between the fastener and the second connector, of the wire body forms a handle, and different positions of the wire body can be connected through the fastener to change the length of the part, between the fastener and the first connector, of the wire body or change the length of the part, between the fastener and the second connector, of the wire body. Therefore, the length of the handle is changed and the mobile power supply is convenient to carry.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mobile power supply, in particular to a charging cable assembly and a mobile power supply. BACKGROUND

[0002] At present, in the products of charging type, such as power bank, etc., there is a use mode of taking the charging cable assembly as a handle. However, in the related art, when the charging cable assembly is used as a handle, the length of the handle cannot be adjusted. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides a charging cable assembly and a mobile power supply which can adjust the length of the handle.

[0004] In an embodiment of the present application, a charging cable assembly is provided, which is applied to a mobile power supply. The charging cable assembly comprises a cable body, a first connector, a second connector and a fastener. The first connector is arranged at one end of the cable body and is configured to be electrically connected to the mobile power supply. The second connector is arranged at the other end of the cable body and is detachably connected to the first connector. The second connector is configured to be electrically connected to an external device. The fastener is connected to the cable body and is configured to be detachably mounted to the mobile power supply. The part of the cable body between the fastener and the first connector and / or the part of the cable body between the fastener and the second connector forms a handle.

[0005] When the charging cable assembly is used as a handle, the first connector is fixed to the mobile power supply, the second connector is fixed to the first connector, and the fastener is fixed to the mobile power supply. Thus, the part of the cable body between the fastener and the first connector and / or the part of the cable body between the fastener and the second connector can form a handle. By connecting the cable body at different positions through the fastener, the length of the part of the cable body between the fastener and the first connector or the length of the part of the cable body between the fastener and the second connector can be changed, so that the length of the handle can be changed, and the mobile power supply is more convenient to carry.

[0006] In some embodiments, the fastener is provided with a through hole, the through hole is used for the cable body to pass through the fastener, and the cable body can slide relative to the fastener.

[0007] In some embodiments, the fastener and the first connector are respectively arranged at opposite sides of the mobile power supply.

[0008] In some embodiments, the fastener is configured to rotate relative to the mobile power supply around an axis perpendicular to the axis of the through hole.

[0009] In some embodiments, the fastener comprises a rotating part and an extending part connected together, the mobile power supply is formed with a receiving slot, the shell of the mobile power supply is provided with an opening communicating with the receiving slot, the rotating part is arranged in the receiving slot and can rotate about an axis perpendicular to the axial direction of the through hole, the radial dimension of the rotating part is greater than the radial dimension of the opening, so that the shell of the mobile power supply limits the rotating part in the receiving slot, and the extending part extends out of the receiving slot through the opening, and the through hole is arranged in the extending part.

[0010] In some embodiments, the fastener is provided with a first magnetic attraction surface, the shell of the mobile power supply is provided with a second magnetic attraction surface, the first magnetic attraction surface and the second magnetic attraction surface are connected by magnetic attraction, so that the fastener and the mobile power supply are connected by magnetic attraction.

[0011] In some embodiments, the shell of the mobile power supply is provided with a limiting slot, the bottom surface of the limiting slot forms the second magnetic attraction surface, the limiting slot accommodates at least part of the fastener, the side of the limiting slot into which the fastener is inserted forms the first magnetic attraction surface, the cross section of the limiting slot is circular, the cross section of the part of the fastener located in the limiting slot is circular, the peripheral surface of the limiting slot limits the outer peripheral surface of the fastener, so that the fastener rotates about an axis perpendicular to the axial direction of the through hole, and the through hole is arranged in the part of the fastener outside the limiting slot.

[0012] In some embodiments, the first magnetic attraction surface and / or the second magnetic attraction surface has an outward convex arc surface, and the arc surface causes the first magnetic attraction surface and the second magnetic attraction surface to be in point contact.

[0013] In some embodiments, the second connector is connected to the first connector by magnetic attraction; the first connector is detachably connected to the mobile power supply, the first connector is connected to the mobile power supply by magnetic attraction, or the first connector is provided with a first mounting hole, the mobile power supply is provided with a second mounting hole, the first mounting hole and the second mounting hole are aligned and used to accommodate a locking member to connect the first connector and the mobile power supply.

[0014] In some embodiments, the fastener is provided with an adjusting hole, the adjusting hole communicates with the through hole, the fastener is provided with a tensioning member, one end of the tensioning member extends into the through hole through the adjusting hole, and the tensioning member can move in the adjusting hole to press or loosen the wire body in the through hole.

[0015] In an embodiment of the present application, a mobile power supply is also provided, which comprises a power supply body and the charging wire assembly of any of the above embodiments, the first connector is configured to electrically connect the power supply body, the fastener is detachably mounted on the power supply body, and the handle is configured to lift the power supply body.

[0016] The mobile power supply provided by the application is fixed to the power supply main body through the first joint, the second joint is fixed to the first joint, and the fastener is fixed to the power supply main body, so that the part of the wire body between the fastener and the first joint and / or the part of the wire body between the fastener and the second joint can form a handle, and the length of the part of the wire body between the fastener and the first joint or the length of the part of the wire body between the fastener and the second joint can be changed by connecting different positions of the wire body through the fastener, so as to change the length of the handle, and the power supply main body is more convenient to carry. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the charging wire assembly and the mobile power supply in the embodiment of the application.

[0018] Figure 2 It is a perspective view of the charging wire assembly and the mobile power supply in the embodiment of the application. Figure 1

[0019] Figure 3 It is a sectional view of the charging wire assembly and the mobile power supply in the embodiment of the application.

[0020] Figure 4 It is a sectional view of the charging wire assembly and the mobile power supply in the embodiment of the application.

[0021] Figure 5 It is a sectional view of the charging wire assembly and the mobile power supply in the embodiment of the application.

[0022] Figure 6 It is a sectional view of the charging wire assembly and the mobile power supply in the embodiment of the application.

[0023] Figure 7 It is a sectional view of the fastener and the tensioning member in the embodiment of the application.

[0024] Figure 8 It is an exploded view of the first joint and the mobile power supply in the embodiment of the application. Figure 2

[0025] Figure 9 It is a perspective view of the first joint in the embodiment of the application. Figure 8

[0026] MAIN ELEMENT SYMBOL EXPLANATION

[0027] ​​​100, charging wire assembly; 200, mobile power supply; 201, power supply main body; 202, containing groove; 203, opening; 204, second magnetic surface; 205, limiting groove; 206, second mounting hole; 207, mounting groove; 10, wire body; 11, first handle; 12, second handle; 20, first connector; 21, first mounting hole; 30, second connector; 40, fastener; 41, perforation; 42, rotating part; 43, extension; 44, first magnetic surface; 45, adjusting hole; 46, tensioning member. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0029] It should be noted that when an element is considered to be "connected to", "provided on" another element, it can be directly connected to the other element or there can be an element provided in between. In the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] The terms "first", "second", and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited. The shape description in the embodiments of the present application is only exemplary and should not constitute any absolute limitation on the present application.

[0031] Reference to "embodiments" herein means that the specific features, structures or properties described in conjunction with the embodiments can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily all refer to the same embodiments, nor is each implementation mutually exclusive or alternative to the other implementations. In the case of no conflict, the various embodiments in the present application can be combined with each other.

[0032] Unless otherwise defined, 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 application belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The description herein and the claims of the application and the above description of the drawings herein are not meant to be limiting but are intended to be illustrative only. The terms "comprises", "comprising", "includes", "including" and "has", "having" as used herein, are intended to be construed as specifying the presence of stated features or steps, but not precluding the presence of one or more other features or steps. The term "or / and", as used herein, includes any and all combinations of one or more of the associated listed items.

[0033] At present, in the products of the charging type, such as power banks, there is a use mode of taking the charging wire assembly as a handle. However, in the related art, when the charging wire assembly is used as a handle, the length of the handle cannot be adjusted.

[0034] Therefore, the application provides a charging wire assembly and a mobile power supply capable of adjusting the length of the handle. The charging wire assembly comprises a wire body, a first connector, a second connector and a fastener. The first connector is arranged at one end of the wire body and is configured to be electrically connected to the mobile power supply. The second connector is arranged at the other end of the wire body and is detachably connected to the first connector. The second connector is configured to be electrically connected to an external device. The fastener is connected to the wire body and is configured to be detachably mounted on the mobile power supply. The part of the wire body between the fastener and the first connector and / or the part of the wire body between the fastener and the second connector forms a handle.

[0035] When the charging wire assembly is used as a handle, the first connector is fixed to the mobile power supply, the second connector is fixed to the first connector, and the fastener is fixed to the mobile power supply, so that the part of the wire body between the fastener and the first connector and / or the part of the wire body between the fastener and the second connector can form a handle. In addition, the length of the part of the wire body between the fastener and the first connector or the length of the part of the wire body between the fastener and the second connector can be changed by connecting the wire body at different positions through the fastener, so that the length of the handle can be changed, and the mobile power supply is more convenient to carry.

[0036] Some embodiments of the application will be described in detail with reference to the drawings. The following embodiments and features of the embodiments can be combined with each other in the case of no conflict.

[0037] As Figure 1 and Figure 2As shown, some embodiments of the present application provide a charging cable assembly 100 and a mobile power supply 200, the mobile power supply 200 comprising a power supply body 201 and the charging cable assembly 100. The charging cable assembly 100 can be used to electrically connect the power supply body 201 with a commercial power supply, so that the commercial power supply charges the power supply body 201, or the charging cable assembly 100 can be used to electrically connect the power supply body 201 with an electrical appliance, so that the power supply body 201 supplies power to the electrical appliance. Exemplarily, the power supply body 201 of the mobile power supply 200 can be a mobile power supply used in an outdoor scene, or a household energy storage system used for household energy storage, etc. Preferably, the charging cable assembly 100 is only used for charging the power supply body 201, and the following embodiments are taken as examples.

[0038] As shown in FIG. 1, the charging cable assembly 100 comprises a cable body 10, a first connector 20, a second connector 30 and a fastener 40. Figure 1 As shown in FIG. 1, the charging cable assembly 100 comprises a cable body 10, a first connector 20, a second connector 30 and a fastener 40. Figure 2 As shown, the charging cable assembly 100 comprises a cable body 10, a first connector 20, a second connector 30 and a fastener 40. The cable body 10 is a flexible and bendable cable. The first connector 20 is arranged at one end of the cable body 10, and the second connector 30 is arranged at the other end of the cable body 10. The first connector 20 is used to electrically connect the power supply body 201, and the second connector 30 is used to electrically connect an external device, which can be an interface of a charger or a socket of a commercial power supply, etc. In addition, the second connector 30 can be detachably mounted on the first connector 20. The fastener 40 is mounted on the power supply body 201, and the fastener 40 is connected with the cable body 10, and the fastener 40 is connected at any position of the cable body 10 between the first connector 20 and the second connector 30.

[0039] When the power supply body 201 does not need to be charged, the second connector 30 is in an idle state, at which time the second connector 30 can be mounted on the first connector 20. After mounting, since both the first connector 20 and the fastener 40 are mounted on the power supply body 201, the part of the cable body 10 between the fastener 40 and the first connector 20 will naturally form a handle, which can be held by a user to lift and move the power supply body 201.

[0040] At the same time, since the second connector 30 is mounted on the first connector 10, so that both the second connector 30 and the fastener 40 are mounted on the power supply body 201, the part of the cable body 10 between the fastener and the second connector 30 will also naturally form another handle, which can be held by a user to lift and move the power supply body 201.

[0041] For the convenience of description, the part of the wire body 10 between the fastener 40 and the first joint 20 forms a first handle 11, and the part of the wire body 10 between the fastener and the second joint 30 forms a second handle 12. It can be understood that the sum of the length of the first handle 11 and the length of the second handle 12 is the total length of the wire body 10. In actual use, the user can use only the first handle 11, or the user can use only the second handle 12, or the user can use the first handle 11 and the second handle 12 at the same time.

[0042] Since the fastener 40 can be connected at any position of the wire body 10, the length of the first handle 11 and the length of the second handle 12 can be changed by changing the position of the fastener 40 connected to the wire body 10, so as to adapt to different user needs and facilitate different users to carry the power body 201 in different scenarios. It can be understood that since the total length of the wire body 10 does not change, when the first handle 11 is adjusted to be longer, the second handle 12 will be shortened accordingly, and vice versa, when the second handle 12 is adjusted to be longer, the first handle 11 will be shortened accordingly, and when the fastener 40 is connected at the midpoint of the wire body 10, the length of the first handle 11 and the length of the second handle 12 are the same.

[0043] Specific use modes are, for example, when the user needs a shorter handle, the user can adjust the position of the fastener 40 relative to the wire body 10 to shorten the first handle 11, so as to hold the first handle 11 to carry the power body 201, and the second handle 12 is not used at this time;

[0044] For another example, when the user needs a longer handle, the user can adjust the position of the fastener 40 relative to the wire body 10 to lengthen the first handle 11, so as to hold the first handle 11 to carry the power body 201, and the second handle 12 is not used at this time;

[0045] For another example, when the user adjusts the fastener 40 at the midpoint of the wire body 10, the length of the first handle 11 and the length of the second handle 12 are the same, and the user can hold the first handle 11 and the second handle 12 at the same time to carry the power body 201. Since the first handle 11 and the second handle 12 make the handle thicker, holding the first handle 11 and the second handle 12 at the same time can improve the hand feeling compared to holding the first handle 11 alone, or, it is convenient for two users to hold the first handle 11 and the second handle 12 respectively to jointly carry the heavier power body 201.

[0046] In some embodiments, as Figure 1 and Figure 2As shown, the fastener 40 is provided with a through hole 41 for the wire body 10 to pass through the fastener 40, and the wire body 10 can slide along the through hole 41 so that the fastener 40 slides relative to the wire body 10 to adjust the length of the first handle 11 and the second handle 12. Exemplarily, the friction between the hole wall of the through hole 41 and the outer surface of the wire body 10 is large enough to stabilize the relative position between the wire body 10 and the fastener 40, and to avoid accidental relative sliding to cause the length of the first handle 11 and the second handle 12 to change.

[0047] In other embodiments, the adjustment between the fastener 40 and the wire body 10 can be through a structure, for example, a plurality of hooks or buckles are arranged on the wire body 10 at intervals, and the fastener 40 can be buckled to any hook or buckle to adjust the relative position between the wire body 10 and the fastener 40, thereby adjusting the length of the first handle 11 and the second handle 12.

[0048] In some embodiments, as shown in Figure 1 and Figure 2 The fastener 40 and the first joint 20 are respectively arranged on the opposite sides of the power supply body 201, so that the two ends of the first handle 11 and the second handle 12 are respectively connected to the opposite sides of the power supply body 201, so that the user's lifting force on the power supply body 201 is closer to the center of gravity of the power supply body 201, thereby more stably lifting the power supply body 201, reducing the risk of the power supply body 201 being greatly inclined or swinging due to gravity when being lifted, and improving the stability of the power supply body 201 when moving.

[0049] Exemplarily, the power supply body 201 is in the shape of a cube, the fastener 40 and the first joint 20 are respectively arranged on the two opposite side walls of the power supply body 201, and the heights relative to the bottom of the power supply body 201 are almost the same, so as to improve the stability of the power supply body 201 when moving.

[0050] In some embodiments, as shown in Figure 1 and Figure 2As shown, the fastener 40 is configured to be rotatable relative to the power supply body 201 about an axis L perpendicular to the axis of the through hole 41. Since the power supply body 201 is prone to shaking when being held by a user, the handle is also prone to shaking under the force of the user, and the shaking force is transmitted between the power supply body 201 and the handle, which affects the stability and the feel. For example, when the power supply body 201 shakes due to collision with an external object, the shaking power supply body 201 is prone to shaking the handle in the user's hand, affecting the feel of use; when the handle shakes due to the swing of the user's arm, the handle is prone to shaking the power supply body 201, affecting the stability of the power supply body 201. Therefore, in order to reduce the transmission of the shaking force between the power supply body 201 and the handle, the fastener 40 is configured to be rotatable about the axis L, so that when the power supply body 201 or the handle shakes about the axis L, the fastener 40 can offset part of the transmission of the shaking force by rotating, thereby improving the stability of the power supply body 201 and the feel of the handle.

[0051] Optionally, the connection between the first joint 20 and the power supply body 201 is also configured to be rotatable about the axis L, thereby further reducing the transmission of the shaking force between the power supply body 201 and the handle, and improving the stability of the power supply body 201 and the feel of the handle.

[0052] In some embodiments, as shown in Figure 2 and Figure 3 The fastener 40 includes a rotating part 42 and an extending part 43 connected together, the power supply body 201 is formed with a receiving groove 202, the shell of the power supply body 201 is provided with an opening 203 communicating with the receiving groove 202, the rotating part 42 is cylindrical and arranged in the receiving groove 202, the rotating part 42 is rotatable about the axis L in the receiving groove 202, the radial dimension of the rotating part 42 is greater than the radial dimension of the opening 203, so that the shell of the power supply body 201 limits the rotating part 42 in the receiving groove 202, the extending part 43 extends out of the receiving groove 202 through the opening 203, and the through hole 41 is arranged on the part of the extending part 43 extending out of the opening 203.

[0053] In some embodiments, as shown in Figure 4 The fastener 40 is provided with a first magnetic surface 44, the shell of the power supply body 201 is provided with a second magnetic surface 204, the first magnetic surface 44 and the second magnetic surface 204 are connected by magnetic attraction, so that the fastener 40 is magnetically connected with the power supply body 201. The first magnetic surface 44 can rotate relative to the second magnetic surface 204, so that the fastener 40 can rotate relative to the power supply body 201.

[0054] In some embodiments, as shown in Figure 5As shown, the housing of the power body 201 is provided with a limiting groove 205, the groove bottom surface of the limiting groove 205 forms a second magnetic attraction surface 204, the limiting groove 205 accommodates at least part of the fastener 40, the fastener 40 inserted into one side of the limiting groove 205 forms a first magnetic attraction surface 44, the cross section of the limiting groove 205 is circular, the cross section of the part of the fastener 40 located in the limiting groove 205 is circular, the groove circumferential surface of the limiting groove 205 limits the outer circumferential surface of the fastener 40, so that the fastener 40 rotates around the axis L, the perforation 41 is provided on the part of the fastener 40 outside the limiting groove 205.

[0055] In some embodiments, as shown in Figure 6 , the first magnetic attraction surface 44 and / or the second magnetic attraction surface 204 has an outward convex arc surface, the arc surface makes the first magnetic attraction surface 44 and the second magnetic attraction surface 204 in point contact, thereby reducing the friction between the first magnetic attraction surface 44 and the second magnetic attraction surface 204, and further more efficiently offsetting the transmission of the shaking force, thereby improving the stability of the power body 201 and the hand feeling of the handle.

[0056] In some embodiments, as shown in Figure 1 , the second joint 30 is magnetically attracted and connected with the first joint 20, so as to improve the convenience of disassembly and assembly between the second joint 30 and the first joint 20. Exemplarily, the first joint 20 and the second joint 30 are both cuboid, and one side surface of the first joint 20 is magnetically attracted and connected with one side surface of the second joint 30.

[0057] In some embodiments, as shown in Figure 1 , Figure 8 and Figure 9 , the first joint 20 is detachably connected with the power body 201, so that the wire body 10 can be taken off from the power body 201 for replacement or maintenance. Optionally, the first joint 20 is magnetically attracted and connected with the power body 201, so as to improve the convenience of disassembly and assembly between the first joint 20 and the power body 201. Further optionally, the opposite two sides of the first joint 20 are respectively provided with one first mounting hole 21, and the power body 201 is correspondingly provided with two second mounting holes 206, each first mounting hole 21 is aligned with one second mounting hole 206 and used to accommodate a locking member, so as to fixedly connect the first joint 20 with the power body 201, wherein exemplarily, the locking member is a screw, and the second mounting hole 206 is a threaded hole.

[0058] Further optionally, the power body 201 is provided with a mounting groove 207, the mounting groove 207 is used to accommodate part of the first joint 20, the outer contour of the mounting groove 207 is the same as the outer contour of the first joint 20, when the first joint 20 is mounted, the first joint 20 is inserted into the mounting groove 207, the groove wall of the mounting groove 207 can pre-position the first joint 20, so that the second mounting hole 206 is aligned with the first mounting hole 21, so as to install the locking member.

[0059] In some embodiments, as shown in Figure 2 and Figure 7 The fastener 40 is provided with an adjusting hole 45 in a direction perpendicular to the axis L, the adjusting hole 45 communicates with the through hole 41, the fastener 40 is provided with a tensioning member 46, one end of the tensioning member 46 extends into the through hole 41 through the adjusting hole 45, the tensioning member 46 is movable in the adjusting hole 45 to press the wire body 10 in the through hole 41, so as to fix the position of the wire body 10 relative to the fastener 40, and fix the length of the first handle 11 and the second handle 12. Exemplarily, the tensioning member 46 is threadedly connected with the adjusting hole 45, and the tightness of the tensioning member 46 pressing the wire body 10 can be adjusted by rotating the tensioning member 46.

[0060] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not used as a limitation to the present application, and any appropriate changes and variations to the above embodiments within the scope of the spirit of the present application are within the disclosure range of the present application.

Claims

1. A charging cable assembly, used in a power bank, characterized in that, include: Line body; A first connector is located at one end of the cable and is configured to electrically connect to the power supply. A second connector is located at the other end of the line and is detachably connected to the first connector. The second connector is configured to electrically connect to an external device. and Fastener, which is connected to the cable and configured to be detachably mounted to the power bank; The portion of the line between the fastener and the first connector and / or the portion of the line between the fastener and the second connector forms a handle.

2. The charging cable assembly as described in claim 1, characterized in that: The fastener has a through hole for the cable to pass through and for the cable to slide relative to the fastener.

3. The charging cable assembly as described in claim 1, characterized in that: The fastener and the first connector are respectively located on opposite sides of the power bank.

4. The charging cable assembly as described in claim 2, characterized in that: The fastener is configured to rotate relative to the power source about an axis perpendicular to the axis of the perforation.

5. The charging cable assembly as described in claim 4, characterized in that: The fastener includes a rotating part and an extension part connected to each other. A receiving groove is formed inside the power bank. The outer shell of the power bank has an opening communicating with the receiving groove. The rotating part is disposed in the receiving groove. The rotating part can rotate around an axis perpendicular to the axis of the perforation in the receiving groove. The radial dimension of the rotating part is larger than the radial dimension of the opening, so that the outer shell of the power bank confines the rotating part in the receiving groove. The extension part extends out of the receiving groove through the opening. The perforation is disposed in the extension part.

6. The charging cable assembly as described in claim 4, characterized in that: The fastener has a first magnetic surface, and the outer shell of the power bank has a second magnetic surface. The first magnetic surface and the second magnetic surface are magnetically connected, so that the fastener and the power bank are magnetically connected.

7. The charging cable assembly as described in claim 6, characterized in that: The power bank's outer casing has a limiting groove, the bottom surface of which forms a second magnetic attraction surface. The limiting groove accommodates at least a portion of the fastener. The fastener is inserted into one side of the limiting groove to form the first magnetic attraction surface. The limiting groove has a circular cross-section, and the portion of the fastener located within the limiting groove has a circular cross-section. The circumferential surface of the limiting groove limits the outer circumferential surface of the fastener, allowing the fastener to rotate around an axis perpendicular to the through hole axis. The through hole is located on the portion of the fastener outside the limiting groove.

8. The charging cable assembly as described in claim 6, characterized in that: The first magnetic surface and / or the second magnetic surface have an outwardly convex arc surface, which makes point contact between the first magnetic surface and the second magnetic surface.

9. The charging cable assembly as described in any one of claims 1 to 8, characterized in that: The second connector is magnetically connected to the first connector; the first connector is detachably connected to the power bank, and the first connector is magnetically connected to the power bank, or the first connector has a first mounting hole, and the power bank has a second mounting hole, the first mounting hole and the second mounting hole are aligned and used to accommodate a locking fastener to connect the first connector and the power bank.

10. The charging cable assembly as described in claim 2, characterized in that: The fastener is provided with an adjustment hole that communicates with the through hole. The fastener is provided with a tensioning member, one end of which extends into the through hole through the adjustment hole. The tensioning member can move in the adjustment hole to squeeze or loosen the thread in the through hole.

11. A portable power bank, characterized in that: The power bank includes a power supply body and a charging cable assembly as described in any one of claims 1 to 10, wherein the first connector is configured to electrically connect to the power supply body, the fastener is detachably mounted to the power supply body, and the handle is configured to lift the power supply body.

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