Small portable charger with retractable charging cable

Abstract

The utility model relates to the technical field of charging auxiliary devices, in particular to a small-sized portable charger capable of winding and unwinding a charging cable, which comprises a front box body and a rear box body which are detachably connected, a connecting shaft is connected to the front box body and the rear box body, a winding and unwinding assembly for winding and unwinding the cable is connected to the connecting shaft, and the front box body and the rear box body are detachably connected. The front box body and the rear box body are connected with a cable arrangement assembly, one end of the cable penetrates through the cable arrangement assembly to be wound on the winding and unwinding assembly, the other end of the cable extends to the outside to be electrically connected with the charging gun, the winding and unwinding assembly is connected with a main synchronous belt wheel, and the cable arrangement assembly is connected with a slave synchronous belt wheel. The main synchronous belt wheel is connected with the auxiliary synchronous belt wheel through a synchronous belt, the connecting shaft is connected with a conductive slip ring set, and the conductive slip ring set is electrically connected with a cable and a connecting cable. The charging cable winding and unwinding device achieves winding and unwinding of the charging cable, prevents the cable from being abraded and knotted, and is small in structure, convenient to carry and high in practicability. The device has application prospects in postal officials in the technical field of charging auxiliary devices.

Description

Technical Field

[0001] The utility model relates to the technical field of charging auxiliary devices, in particular to a small portable charger with a retractable charging cable. Background Art

[0002] With the increasing development and growth of the electric vehicle market, the number of electric vehicles is increasing. However, the cruising range of electric vehicles is always limited. Therefore, charging equipment is an important guarantee in the electric vehicle industrial chain. However, in today's society, the number of charging piles is far from meeting the needs of electric vehicles. Therefore, when traveling, it is usually necessary to equip a charging cable to charge the electric vehicle. Moreover, the charging port of the electric vehicle is relatively special, and the electric vehicle usually needs to be equipped with a special charging cable. However, in the prior art, most charging cables cannot be folded and stored. The charging cables are randomly placed in the trunk of the electric vehicle, occupying a large space and being not easy to carry. Moreover, the scattered placement is easy to be disordered, entangled and knotted, affecting the use. In addition, being exposed for a long time is easy to be worn and damaged. Therefore, a device to solve the above problems is needed. Content of the Utility Model

[0003] To solve the problems that in the prior art, most charging cables cannot be folded and stored, the charging cables are randomly placed in the trunk of the electric vehicle, occupying a large space and being not easy to carry, and the scattered placement is easy to be disordered, entangled and knotted, affecting the use, and being exposed for a long time is easy to be worn and damaged, a small portable charger with a retractable charging cable is invented.

[0004] The technical solution of the utility model is as follows: it includes a front box body and a rear box body which are detachably connected. Among them, a connecting shaft is connected to the front box body and the rear box body. A winding and unwinding assembly for winding and unwinding the cable is connected to the connecting shaft. A wire arranging assembly is connected to the front box body and the rear box body. One end of the cable passes through the wire arranging assembly and is wound on the winding and unwinding assembly, and the other end extends to the outside and is electrically connected to a charging gun. A main synchronous pulley is connected to the winding and unwinding assembly, and a slave synchronous pulley is connected to the wire arranging assembly. The main synchronous pulley is connected to the slave synchronous pulley through a synchronous belt. A conductive slip ring group is connected to the connecting shaft, and the conductive slip ring group is electrically connected to the cable and a connecting cable.

[0005] Preferably, the winding and unwinding assembly includes a left wire reel, a right wire reel, a torsion spring and a torsion spring box. The left wire reel and the right wire reel are respectively connected to the connecting shaft through a left bearing and a right bearing. The torsion spring box is arranged between the left wire reel and the right wire reel and is connected to the left wire reel and the right wire reel. The torsion spring is arranged in the torsion spring box, and one end is connected to the connecting shaft and the other end is connected to the torsion spring box. The main synchronous pulley is connected to the left wire reel or the right wire reel.

[0006] Preferably, a partition is provided inside the coil spring box. A clamping protrusion is provided on the end face of the partition away from the coil spring. A number of ratchet grooves are formed in the clamping protrusion. A connection block is connected to the connecting shaft. One end of the connection block is rotatably connected with a pawl, forming a structure in which the pawl is clamped in the ratchet groove to realize the clamping and positioning of the coil spring box. The end of the pawl away from the ratchet groove is connected to the end of the connection block away from the pawl through a connection spring. A number of release notches are directly formed in the clamping protrusion.

[0007] Preferably, the wire arranging assembly includes a left connecting plate, a right connecting plate, a reciprocating lead screw, a connecting rod and a wire arranging plate. The two ends of the reciprocating lead screw and the connecting rod are rotatably connected to the left connecting plate and the right connecting plate. The two ends of the wire arranging plate are slidably connected to the connecting rod and the reciprocating lead screw. One end of the wire arranging plate is meshed with the reciprocating lead screw. A pair of rotating wheels are rotatably connected to the wire arranging plate. The cable passes through the wire arranging plate between the two rotating wheels. The slave synchronous pulley is connected to one end of the reciprocating lead screw between the left connecting plate and the right connecting plate.

[0008] Preferably, a control circuit board assembly is connected inside the front box body. The control circuit board assembly is electrically connected to a touch display screen assembly and a conductive slip ring group. The touch display screen assembly partially penetrates the front box body. A protective shell covering the touch display screen assembly is connected to the front box body. A handle is connected to the protective shell.

[0009] Preferably, a positioning plate is connected to the rear box body.

[0010] Preferably, a storage groove is formed in the front box body. A placement plate is connected inside the storage groove. An insertion port is formed at the upper end of the placement plate. A clamping groove is formed at the lower end of the placement plate. One end of the charging gun is inserted into the insertion port, and the other end is clamped in the clamping groove. A limiting ball is connected to one end of the cable close to the charging gun. A receiving and releasing port is formed in the rear box body. The cable enters the rear box body through the receiving and releasing port.

[0011] Preferably, a wire winding plate is connected to the side end face of the rear box body. The connecting cable is wound around the wire winding plate. A clamping pin is connected to the rear box body beside the wire winding plate. The plug of the connecting cable is clamped on the clamping pin.

[0012] The technical solution of the present utility model can achieve the following beneficial effects: (1) Through the front box body and the rear box body, it is used to store cables, avoiding the scattered placement of cables, and can prevent the cables from being directly exposed to the outside world, and is also convenient for carrying; (2) Through the winding and unwinding component, the winding and unwinding of the cable can be realized. When in use, the cable is released, and when not in use, the cable is retracted and stored through the elastic force of the spiral spring, reducing the occupied space and being convenient for traveling; (3) Through the ratchet groove and the pawl, it is convenient to limit the winding and unwinding component, so that the cable can be clamped and positioned after being released, preventing the cable from automatically retracting, and at the same time not affecting the normal retraction and storage of the cable when not needed; (4) Through the control circuit board assembly and the touch display screen assembly, the charging time and the on-off of the cable can be monitored and controlled; (5) Through the positioning plate, it is convenient to connect the entire charger to the wall, realizing the home use of the charger, and at the same time it is convenient to lift the charger through the positioning plate, which is convenient for carrying; (6) Through the placement plate and the limiting ball, it is convenient to place the charging gun, and at the same time limit the length of the cable wound on the winding and unwinding component; (7) Through the wire winding plate, it is convenient to store the connecting cable. The technical solution of the present utility model has a wide application prospect in the technical field of charging auxiliary devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 FIG. is a perspective view of the charger for a small portable retractable charging cable of the present utility model.

[0014] Figure 2 FIG. is a schematic structural view of the winding and unwinding component of the charger for a small portable retractable charging cable of the present utility model.

[0015] Figure 3 FIG. is a schematic structural view of the ratchet groove and the pawl of the charger for a small portable retractable charging cable of the present utility model.

[0016] Figure 4 FIG. is a schematic structural view of the cable arranging component of the charger for a small portable retractable charging cable of the present utility model and its connection and cooperation with the winding and unwinding component.

[0017] Among them, 1. front box body, 2. rear box body, 3. control circuit board assembly, 4. touch display screen assembly, 5. protective case, 6. handle, 7. positioning plate, 8. storage groove, 9. placement plate, 10. jack, 11. clamping groove, 12. charging gun, 13. cable, 14. limiting ball, 15. connecting shaft, 16. left wire reel, 17. right wire reel, 18. left bearing, 19. right bearing, 20. spring box, 21. spring, 22. partition board, 23. clamping protrusion, 24. ratchet groove, 25. pawl, 26. connecting block, 27. connecting spring, 28. release notch, 29. winding board, 30. connecting cable, 31. clamping pin, 32. left connecting plate, 33. right connecting plate, 34. connecting rod, 35. reciprocating lead screw, 36. wire arranging board, 37. rotating wheel, 38. main synchronous pulley, 39. driven synchronous pulley, 40. synchronous belt, 41. conductive slip ring group. Specific embodiments

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0019] In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0020] Such as Figures 1-4The charger of the small portable retractable charging cable shown includes a front box body 1 and a rear box body 2 that are detachably and fixedly connected by bolts, facilitating the detachable connection between the front box body 1 and the rear box body 2, and thus facilitating the maintenance of internal components. A connecting shaft 15 is detachably and fixedly connected to the front box body 1 and the rear box body 2 by bolts, so that the connecting shaft 15 is connected to the front box body 1 and the rear box body 2, and at the same time, the retractable component can rotate with the connecting shaft 15 as the rotation axis. A retractable component for retracting and releasing the cable 13 is connected to the connecting shaft 15, enabling the retraction and release of the cable 13 through the retractable component. The retractable component includes a left wire reel 16, a right wire reel 17, a torsion spring 21, and a torsion spring box 20. The left wire reel 16 and the right wire reel 17 are respectively rotatably connected to the connecting shaft 15 through a left bearing 18 and a right bearing 19, so that the left wire reel 16 and the right wire reel 17 are connected to the connecting shaft 15, and at the same time, the left wire reel 16 and the right wire reel 17 can rotate relative to the connecting shaft 15 through the left bearing 18 and the right bearing 19. The torsion spring box 20 is arranged between the left wire reel 16 and the right wire reel 17 and is detachably and fixedly connected to the left wire reel 16 and the right wire reel 17 by bolts, so that the left wire reel 16 and the right wire reel 17 are connected together through the torsion spring box 20, realizing the simultaneous rotation of the torsion spring box 20, the left wire reel 16, and the right wire reel 17. The cable 13 is wound around the torsion spring box 20, so that the retraction and release of the cable 13 are realized through the rotation of the torsion spring box 20, and at the same time, the left wire reel 16 and the right wire reel 17 prevent the cable 13 from detaching from the torsion spring box 20. The torsion spring 21 is arranged inside the torsion spring box 20, and one end is detachably and fixedly connected to the connecting shaft 15 by bolts, and the other end is detachably and fixedly connected to the torsion spring box 20 by bolts, so that the rotation of the torsion spring box 20 drives the rotation of the torsion spring 21, thereby providing an elastic rotational force for the torsion spring box 20. Then, through the release of the cable 13, the torsion spring box 20, the left wire reel 16, and the right wire reel 17 are driven to rotate, and at the same time, the torsion spring box 20 drives the rotation of the torsion spring 21. When the cable 13 is released and then under the elastic force of the torsion spring 21, the cable 13 automatically rewinds and is stored on the torsion spring box 20.

[0021] As Figures 1-4The charger of the small portable retractable charging cable shown has a partition 22 inside the spring reel 20, which is convenient for dividing the inside of the spring reel 20 into two spaces through the partition 22. A spring reel 21 is placed in one of the spaces to prevent other devices from affecting the normal operation of the spring reel 21. A clamping protrusion 23 is welded and fixed to the end face of the partition 22 away from the spring reel 21. A number of ratchet grooves 24 are provided on the clamping protrusion 23. A connecting block 26 is detachably and fixedly connected to the connecting shaft 15 by bolts. One end of the connecting block 26 is rotatably connected to a pawl 25, forming a structure in which the pawl 25 is clamped in the ratchet groove 24 to realize the clamping and positioning of the spring reel 20. When the pawl 25 is clamped into the ratchet groove 24, the clamping of the clamping protrusion 23 is limited. At this time, the cable 13 is prevented from automatically rewinding and being stored on the spring reel 20 under the action of the elastic force of the spring reel 21. One end of the pawl 25 away from the ratchet groove 24 is connected to one end of the connecting block 26 away from the pawl 25 through a connecting spring 27, so that the connecting spring 27 provides elastic force for the pawl 25 and limits it at the same time. A number of release notches 28 are directly provided on the clamping protrusion 23. When the pawl 25 moves to the release notch 28, it is straightened under the action of the elastic force of the connecting spring 27. Then, using the arc of the pawl 25, when the cable 13 is released, under the action of the elastic force of the spring reel 21, the cable 13 can be rewound and stored around the spring reel 20.

[0022] As Figures 1-4The charger of the small portable retractable charging cable shown has a flexible cable assembly detachably and fixedly connected to the front box body 1 and the rear box body 2 by bolts. One end of the cable 13 passes through the flexible cable assembly and is wound around the retractable assembly, and the other end extends to the outside and is electrically connected to the charging gun 12, so that the cable 13 can be conveniently arranged and wound around the spring box 20 in an orderly manner through the flexible cable assembly, avoiding the chaotic winding of the cable 13 on the spring box 20 and affecting the retraction and extension of the cable 13. The flexible cable assembly includes a left connecting plate 32, a right connecting plate 33, a reciprocating lead screw 35, a connecting rod 34 and a cable arranging plate 36. The left connecting plate 32 and the right connecting plate 33 are respectively detachably and fixedly connected to the inside of the front box body 1 and the rear box body 2 by bolts, so that the left connecting plate 32 and the right connecting plate 33 are respectively connected to the front box body 1 and the rear box body 2. Both ends of the reciprocating lead screw 35 and the connecting rod 34 are rotatably connected to the left connecting plate 32 and the right connecting plate 33, so that the reciprocating lead screw 35 and the connecting rod 34 are connected to the left connecting plate 32 and the right connecting plate 33. Both ends of the cable arranging plate 36 are slidably connected to the connecting rod 34 and the reciprocating lead screw 35, so that the cable arranging plate 36 can move along the length directions of the connecting rod 34 and the reciprocating lead screw 35. One end of the cable arranging plate 36 is engaged with the reciprocating lead screw 35, so that by rotating the reciprocating lead screw 35, the cable arranging plate 36 is driven to move along the length direction of the reciprocating lead screw 35. A pair of rotating wheels 37 are rotatably connected to the cable arranging plate 36, and the cable 13 passes through the cable arranging plate 36 between the two rotating wheels 37, so that the cable 13 is limited by the rotating wheels 37, and the cable 13 can move together with the cable arranging plate 36. Furthermore, when the cable 13 is wound back onto the spring box 20, it can be evenly arranged, and at the same time, the rotating wheels 37 are used to reduce the friction between the cable 13 and the cable arranging plate 36 directly.

[0023] As Figures 1-4 For the charger of the small portable retractable charging cable shown, the main synchronous pulley 38 is connected to the left wire reel 16 or the right wire reel 17, and the slave synchronous pulley 39 is connected to one end of the reciprocating lead screw 35 between the left connecting plate 32 and the right connecting plate 33. The main synchronous pulley 38 is connected to the slave synchronous pulley 39 through a synchronous belt 40, so that by rotating the spring box 20 to retract and extend the cable 13, the main synchronous pulley 38 is driven to rotate, and then the slave synchronous pulley 39 is driven to rotate through the synchronous belt 40, and then the reciprocating lead screw 35 is driven to rotate, and then the cable arranging plate 36 is driven to rotate.

[0024] As Figures 1-4The charger for the small portable retractable charging cable shown has a conductive slip ring group 41 connected to the connecting shaft 15. The conductive slip ring group 41 is electrically connected to the cable 13 and the connecting cable 30, so that when the cable 13 rotates, the electrical connection with the connecting cable 30 is not affected through the conductive slip ring group 41. Inside the front box body 1, a control circuit board assembly 3 is detachably fixed by bolts. The control circuit board assembly 3 is a common single-chip microcomputer control circuit board module assembly on the market. The control circuit board assembly 3 is electrically connected to a touch display screen assembly 4 and a conductive slip ring group 41, so that the on-off of the conductive slip ring group 41 is controlled by the control circuit board assembly 3, and at the same time, the current and voltage passing through the conductive slip ring group 41 can be regulated. In addition, the circuit data is conveniently displayed through the touch display screen assembly 4, and the current and voltage are regulated at the same time.

[0025] As Figures 1-4 For the charger of the small portable retractable charging cable shown, the touch display screen assembly 4 is a common touch display screen module assembly on the market. The touch display screen assembly 4 partially penetrates the front box body 1. A protective shell 5 covering the touch display screen assembly 4 is detachably connected to the front box body 1 by bolts, so that the touch display screen assembly 4 is protected by the protective shell 5, and it is convenient for the touch display screen assembly 4 to be connected to the front box body 1. A handle 6 is rotatably connected to the protective shell 5, which is convenient for lifting the entire charger through the handle 6, realizing the convenient portability of the charger.

[0026] As Figures 1-4 For the charger of the small portable retractable charging cable shown, a positioning plate 7 is detachably fixed to the rear box body 2 by bolts, so that the entire charger is fixed on the wall through the positioning plate 7 to form a fixed charging pile. At the same time, it is convenient to lift the entire charger through the positioning plate 7, realizing the convenient portability of the charger.

[0027] As Figures 1-4The charger for the small portable retractable charging cable shown in the figure has a storage groove 8 opened on the front box body 1. The charging gun 12 is arranged in the storage groove 8, which is convenient for placing the charging gun 12 through the storage groove 8 when the charger is not in use, avoiding the random placement of the charging gun 12 and affecting its reuse. A placement plate 9 is detachably connected to the storage groove 8 by bolts, so that the placement plate 9 is connected to the front box body 1. An insertion interface 10 is opened at the upper end of the placement plate 9, and a clamping groove 11 is opened at the lower end of the placement plate 9. One end of the charging gun 12 is inserted into the insertion interface 10, and the other end is clamped in the clamping groove 11, so that the head of the charging gun 12 is limited by the insertion interface 10, and the tail of the charging gun 12 is supported and lifted by the clamping groove 11, so that the charging gun 12 can be stably placed in the storage groove 8. A limiting ball 14 is connected to one end of the cable 13 close to the charging gun 12, so that the length of the cable 13 wound into the charger is limited by the limiting ball 14, avoiding excessive winding of the cable 13 into the charger and affecting the placement of the charging gun 12 on the placement plate 9 in the storage groove 8. A retraction and release opening is opened on the rear box body 2, and the cable 13 enters the rear box body 2 through the retraction and release opening, which is convenient for the cable 13 to enter and exit through the retraction and release opening, and at the same time, the limit is defined at the retraction and release opening, avoiding all of the cable 13 entering the rear box body 2 through the retraction and release opening and affecting the next use of the cable 13.

[0028] As Figures 1-4 For the charger of the small portable retractable charging cable shown in the figure, a winding plate 29 is detachably and fixedly connected to the side end face of the rear box body 2 by bolts, so that the winding plate 29 is connected to the rear box body 2. The connection cable 30 is wound around the winding plate 29, which is convenient for storing the connection cable 30 through the winding plate 29. Thus, the connection cable 30 can be retracted when not in use and released to be connected to an external power supply when in use. A clamping pin 31 is detachably and fixedly connected to the rear box body 2 beside the winding plate 29, and the plug of the connection cable 30 is clamped on the clamping pin 31, which is convenient for clamping and positioning the plug of the connection cable 30 through the clamping pin 31 and avoiding the random movement of the plug of the connection cable 30.

[0029] In the above embodiments, the device elements involved are all conventional device elements without special instructions. The structural setting methods, working methods or control methods involved are all conventional setting methods, working methods or control methods in this field without special instructions.

[0030] The above embodiments only represent several implementation modes of the present invention, and the description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A small portable charger with a retractable charging cable, comprising a detachably connected front box body (1) and a rear box body (2), characterized in that: The front box body (1) and the rear box body (2) are connected to a connecting shaft (15); a retractable assembly for retracting and releasing the cable (13) is connected to the connecting shaft (15); a cable arrangement assembly is connected to the front box body (1) and the rear box body (2); one end of the cable (13) passes through the cable arrangement assembly and is wound around the retractable assembly, and the other end extends to the outside to be electrically connected to the charging gun (12); a main synchronous pulley (38) is connected to the retractable assembly; a slave synchronous pulley (39) is connected to the cable arrangement assembly; the main synchronous pulley (38) is connected to the slave synchronous pulley (39) via a synchronous belt (40); a conductive slip ring group (41) is connected to the connecting shaft (15); the conductive slip ring group (41) is electrically connected to the cable (13) and the connecting cable (30).

2. The small portable charger with a retractable charging cable according to claim 1, characterized in that: The retractable assembly comprises a left wire drum (16), a right wire drum (17), a coil spring (21) and a coil spring box (20); the left wire drum (16) and the right wire drum (17) are connected to the connecting shaft (15) via a left bearing (18) and a right bearing (19) respectively; the coil spring box (20) is arranged between the left wire drum (16) and the right wire drum (17) and is connected to the left wire drum (16) and the right wire drum (17); the coil spring (21) is arranged in the coil spring box (20) and is connected to the connecting shaft (15) at one end and to the coil spring box (20) at the other end; and the main synchronous pulley (38) is connected to the left wire drum (16) or the right wire drum (17).

3. The small portable charger with a retractable charging cable according to claim 2, characterized in that: A partition plate (22) is provided in the coil spring box (20), and a clamping protrusion (23) is provided on the end surface of the partition plate (22) away from the coil spring (21), and a plurality of ratchet grooves (24) are formed on the clamping protrusion (23). A connecting block (26) is connected to the connecting shaft (15), and a pawl (25) is rotatably connected to one end of the connecting block (26), so that the pawl (25) is clamped in the ratchet groove (24) to realize the clamping and positioning of the coil spring box (20). An end of the pawl (25) away from the ratchet groove (24) is connected to an end of the connecting block (26) away from the pawl (25) via a connecting spring (27), and a plurality of release notches (28) are directly formed on the clamping protrusion (23).

4. The small portable charger with a retractable charging cable according to claim 1, characterized in that: The cable arrangement assembly comprises a left connecting plate (32), a right connecting plate (33), a reciprocating screw (35), a connecting rod (34) and a cable arrangement plate (36); the two ends of the reciprocating screw (35) and the connecting rod (34) are rotatably connected to the left connecting plate (32) and the right connecting plate (33); the two ends of the cable arrangement plate (36) are slidably connected to the connecting rod (34) and the reciprocating screw (35); one end of the cable arrangement plate (36) is meshed with the reciprocating screw (35); a pair of rotating wheels (37) are rotatably connected to the cable arrangement plate (36); the cable (13) passes through the cable arrangement plate (36) between the two rotating wheels (37); and the slave synchronous pulley (39) is connected to one end of the reciprocating screw (35) between the left connecting plate (32) and the right connecting plate (33).

5. The small portable charger with a retractable charging cable according to claim 1, characterized in that: A control circuit board assembly (3) is connected inside the front box body (1); the control circuit board assembly (3) is electrically connected to a touch display screen assembly (4) and a conductive slip ring assembly (41); the touch display screen assembly (4) partially penetrates the front box body (1); a protective shell (5) covering the outside of the touch display screen assembly (4) is connected to the front box body (1); and a handle (6) is connected to the protective shell (5).

6. The small portable charger with a retractable charging cable according to claim 1, characterized in that: A positioning plate (7) is connected to the rear box body (2).

7. The small portable charger with a retractable charging cable according to claim 1, characterized in that: The front box body (1) is provided with a storage groove (8), a placement plate (9) is connected to the storage groove (8), a plug interface (10) is provided at the upper end of the placement plate (9), a clamping groove (11) is provided at the lower end of the placement plate (9), one end of the charging gun (12) is plugged into the plug interface (10), and the other end is clamped into the clamping groove (11), one end of the cable (13) close to the charging gun (12) is connected to a limiting ball (14), and a receiving opening is provided on the rear box body (2), and the cable (13) enters the rear box body (2) through the receiving opening.

8. The small portable charger with a retractable charging cable according to claim 1, characterized in that: A winding plate (29) is connected to the side end surface of the rear box body (2), and the connecting cable (30) is wound around the winding plate (29). A clamping pin (31) is connected to the rear box body (2) next to the winding plate (29), and a plug of the connecting cable (30) is clamped on the clamping pin (31).

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