CN117559579B

CN117559579B - Heavy-current vehicle-mounted charger

Info

Publication number: CN117559579B
Application number: CN202310264060.3A
Authority: CN
Inventors: 陈积敢
Original assignee: Guangdong Lidenuo Electronic Technology Co ltd
Current assignee: Guangdong Lidenuo Electronic Technology Co ltd
Priority date: 2023-03-18
Filing date: 2023-03-18
Publication date: 2024-06-11
Anticipated expiration: 2043-03-18
Also published as: CN117559579A

Abstract

The application relates to the technical field of chargers, in particular to a high-current vehicle-mounted charger which comprises a charger body, wherein the charger body comprises a shell, one end of the shell is provided with an external connection end, the other end of the shell is provided with a conductive end, a charging main board is arranged in the shell, the conductive end is provided with a first electrode, a conductive component is arranged in the shell and is electrically connected with the charging main board through the conductive component, the conductive component comprises a conductive frame and a high-current wire, the conductive frame is electrically connected with the charging main board, one side of the first electrode, which faces the conductive frame, is provided with a conductive block, the conductive frame is provided with a steady-flow buffer component which is electrically connected with the conductive block, one side of the conductive block, which faces the conductive frame, is provided with a contact pin, the contact pin penetrates through the conductive frame and is in sliding connection with the conductive frame, one end of the high-current wire is electrically connected with the contact pin, and the other end of the high-current wire is electrically connected with the charging main board. The application has the effects of increasing the conductive current and improving the charging efficiency.

Description

Heavy-current vehicle-mounted charger

Technical Field

The application relates to the technical field of chargers, in particular to a high-current vehicle-mounted charger.

Background

With the development of the automobile industry, vehicle-mounted chargers are widely used. The vehicle-mounted charger is a fitting for facilitating a vehicle owner to charge a digital product anytime and anywhere by using a vehicle-mounted vehicle charging source, and has the characteristics of multifunction, portability and fashion.

The invention patent with the publication number CN103986208B discloses a vehicle-mounted charger, which comprises a shell, a first electrode, a PCB (printed circuit board) arranged in the shell and a second electrode group arranged on the peripheral wall of the shell; the PCB is an indispensable component of the vehicle-mounted charger, and an elastic sigma-shaped internal electrode and a first resetting piece are fixedly connected to the PCB, wherein the first resetting piece is preferably a spiral spring, one end of the spiral spring is fixed to the PCB, and the other end of the spiral spring abuts against the first electrode. When the vehicle-mounted charger is required to be used, the first electrode is aligned and inserted into the vehicle-mounted plug-in port, at the moment, current is guided to the spiral spring from the first electrode, and then is guided to the PCB from the spiral spring, so that current conduction of the first electrode is realized.

In the process of realizing the application, the inventor finds that at least the following problems exist in the technology, and when a vehicle-mounted charger is required to charge large-capacity equipment such as a charger, a tablet personal computer and the like, the problems of insufficient power supply voltage and low charging efficiency are caused by the fact that the contact area between the spiral spring and the PCB is limited and the current is transmitted by the spiral spring.

Disclosure of Invention

In order to increase the conduction current and improve the charging efficiency, the application provides a high-current vehicle-mounted charger.

The application provides a high-current vehicle-mounted charger, which adopts the following technical scheme:

The utility model provides a heavy current vehicle-mounted charger, includes the charger body, the charger body includes the shell, the one end of shell is provided with external end, the other end of shell is provided with the conducting end, be provided with the mainboard that charges in the shell, the conducting end is provided with first electrode, be provided with conductive component in the shell, first electrode passes through conductive component with mainboard electric connection charges, conductive component includes conductive frame and heavy current wire, conductive frame with mainboard electric connection charges, first electrode orientation one side of conductive frame is provided with the conducting block, the conductive frame has the stationary flow buffer module that is used for being connected with the conducting block electricity, the conducting block orientation one side of conductive frame is provided with the touch-foot, the touch-foot runs through the conductive frame, and with conductive frame sliding connection, the one end of heavy current wire with touch-foot electric connection, the other end of heavy current wire with mainboard electric connection charges.

Through adopting above-mentioned technical scheme, when using this heavy current charger, aim at the conductive terminal earlier and insert the mouth that charges in the car, this moment first electrode receives the extrusion force and removes towards the direction that is close to the electrically conductive frame, first electrode drives the electrically conductive piece and removes towards the direction that is close to the electrically conductive frame, under buffer assembly's effect, reduced first electrode because the extrusion force causes the damage, electrically conductive piece butt in electrically conductive frame this moment, the electrically conductive piece has increased the area of contact of first electrode and electrically conductive frame, and make the mainboard that charges get electric, simultaneously under the connected action of heavy current wire, increased the conduction current, improved the stability that the mainboard that charges gets electric, be favorable to improving the charging efficiency to high capacity equipment such as treasured that charges, panel computer.

Optionally, the stationary flow buffer unit includes conductive spring, conductive spring cover is located the contact pin, conductive spring's one end with conductive block fixed connection, conductive spring's the other end with conductive frame fixed connection, the contact pin deviates from conductive block's one end is provided with spacing foot.

Through adopting above-mentioned technical scheme, when the first electrode receives the extrusion and moves towards the direction that is close to the electrically conductive frame, first motor compresses tightly conductive spring through the conductive block, buffers the extrusion force through conductive spring, and conductive spring also realizes the electric current transmission simultaneously, further increases conductive current, improves charging efficiency.

Optionally, the external end of shell articulates there is the shield, the back of shield is provided with the rolling lid, the shield with the rolling lid is linked together, be provided with the charging wire in the rolling lid, the charging wire includes first interface end and second interface end, first interface end extends to in the shield, the shield is provided with the rollback subassembly that is used for rolling first interface end, the second interface end runs through and extends to outside the rolling lid, the rolling lid is provided with the rolling mechanism that is used for rolling second interface end.

By adopting the technical scheme, when the vehicle-mounted charger is inserted into the charging port in the automobile, the dust cover can be closed at the moment to protect the external end of the shell so as to prevent tea or dust from falling to the external end of the shell; when the vehicle-mounted charger is used for charging the electronic equipment, the dustproof cover is hinged and opened, then the first interface end of the charging wire is inserted into the external end of the vehicle-mounted charger, and then the second interface end of the charging wire is inserted into the electronic equipment, so that the electronic equipment is charged; after charging is completed, the first interface end and the second interface end are disconnected in sequence, the first interface end is rolled up through the rollback assembly, the second interface end is rolled up through the rolling mechanism, the problem that electric wires in an automobile are disordered is solved, and the charging convenience of electronic equipment and the cleanliness in the automobile are improved.

Optionally, the rollback subassembly includes the rollback spring, the both sides of first interface end are provided with the slider, the shield deviates from one side of rolling lid corresponds to seted up the spout, the slider with spout sliding connection, the sidewall that the charging wire is close to first interface end is located to the rollback spring cover, the one end and the shield inner wall fixed connection of rollback spring, the other end and the sidewall fixed connection of charging wire of rollback spring.

Through adopting above-mentioned technical scheme, when pulling out first interface end from the shield, the tensile spring that rolls up of first interface end this moment, when releasing first interface end when the hands, the spring that rolls up releases elasticity this moment to drive first interface end towards shield internal winding, and the slider slides again and peg graft in the spout, and the electric wire of arranging the first interface end in the spring that rolls up simultaneously is difficult to knot, has improved the stability of first interface end rollback.

Optionally, the winding mechanism includes the wind-up roll, the winding lid internal fixation has the wind-up roll, the wind-up roll rotates the cover and locates the wind-up roll, the charging wire is close to the one end of second interface end is around locating the wind-up roll, the wind-up groove has been seted up to the one end of wind-up roll, be provided with the wind spring in the wind-up groove, the one end of wind spring with wind-up roll lateral wall fixed connection, the other end of wind spring with the cell wall fixed connection of wind-up groove.

Through adopting above-mentioned technical scheme, when pulling out the second interface end from the rolling lid, the second interface end drives the wind-up roll and rotates, and wind spring elastic deformation, when releasing the second interface end when putting the hand, the wind spring release elasticity this moment to drive wind-up roll reverse direction rotation, thereby carry out the rolling to the second interface end, and then be favorable to improving the stability of second interface end use and rolling.

Optionally, the winding lid is provided with and is used for locking wind-up roll pivoted locking mechanism, locking mechanism includes locking gear and wedge, locking gear fixed set up in the wind-up roll deviates from the one end of wind spring, the wedge remove in the winding lid, the wedge with locking gear cooperatees, the winding lid is provided with and is used for assisting the wedge cooperate in locking gear's removal subassembly.

Through adopting above-mentioned technical scheme, after the second interface end stretches to certain length, under the effect of moving the subassembly, the wedge is cooperation in the locking gear all the time this moment, and then locks the locking gear, and the wind-up roll can't rotate towards the direction of rolling this moment, and the second interface end stretches and locks at current length, and then is favorable to the convenience that the second interface end used.

Optionally, the movable assembly includes carriage release lever and reset spring, be provided with a fixed section of thick bamboo in the rolling lid, the carriage release lever remove in the fixed section of thick bamboo, the one end of carriage release lever run through a fixed section of thick bamboo, and with wedge fixed connection, the other end of carriage release lever runs through in proper order a fixed section of thick bamboo, rolling lid, and extend to outside the rolling lid lateral wall, the lateral wall solid fixed ring of carriage release lever is equipped with the movable block, reset spring cover is located the carriage release lever, reset spring's one end with movable block fixed connection, reset spring's the other end with fixed section of thick bamboo inner wall fixed connection.

Through adopting above-mentioned technical scheme, when the direction pulling carriage release lever of keeping away from the rolling lid, the carriage release lever drives carriage release lever and wedge respectively and removes, and the wedge breaks away from in the locking gear this moment, and the carriage compresses tightly reset spring, and locking gear removes the restriction this moment, and the rotation of wind-up roll is unrestricted to carry out the rolling to the second interface end, when releasing the carriage release lever when releasing the hand, reset spring releases elasticity, finally drives the wedge and cooperates in locking gear again to lock the second interface end in current tensile length, and then is favorable to improving the stability of the tensile locking of second interface end.

Optionally, an end cap of the dust cap remote from the housing is provided with a receiving cap.

Through adopting above-mentioned technical scheme, on-vehicle charger peg graft in the car mouth that charges, and when not using the charging wire, can be with accomodate the lid and close in the one end that the shell was kept away from to the shield, the winding lid is arranged in the shield this moment, is favorable to avoiding tea or dust to drop to the second interface end of charging wire as far as possible, improves the life of charging wire.

Optionally, a sub-cover for covering the conductive terminal is slid in the accommodating cover.

Through adopting above-mentioned technical scheme, when needs accomodate on-vehicle charger, take out the sub-lid in accomodating the lid earlier, then with sub-lid in proper order with on-vehicle charger's conductive end, accomodate the one end that the lid located the shield, be favorable to reducing and connect the electric position to expose in the air, the sub-lid slides in accomodating the lid simultaneously, is favorable to reducing sub-lid and loses to and the convenience of use.

In summary, the application has the following beneficial technical effects:

when the heavy current charger is used, the conductive end is aligned and inserted into the charging port in the automobile, at the moment, the first electrode is subjected to extrusion force to move in the direction close to the conductive frame, the first electrode drives the conductive block to move in the direction close to the conductive frame, the damage of the first electrode caused by extrusion force is reduced under the action of the buffer component, the conductive block is abutted to the conductive frame, the contact area between the first electrode and the conductive frame is enlarged by the conductive block, the charging main board is electrified, meanwhile, under the connection action of heavy current wires, the conductive current is enlarged, the electrification stability of the charging main board is improved, and the charging efficiency of high-capacity equipment such as a charger and a tablet computer is improved.

Drawings

FIG. 1 is a schematic view of the internal structure of a high-current vehicle-mounted charger of the present application;

FIG. 2 is a schematic view of the housing structure of the high current vehicle charger of the present application;

FIG. 3 is a schematic view of the external overall structure of the high-current vehicle-mounted charger of the present application;

FIG. 4 is a schematic cross-sectional view of the dust cap and the wrap-around cap of the present application;

FIG. 5 is a schematic view of the overall structure of the locking assembly of the present application;

Fig. 6 is a schematic diagram of a connection relationship between a receiving section and a sub-cover according to the present application.

Reference numerals illustrate: 1. a charger body; 11. a housing; 12. an external connection end; 13. a conductive terminal; 14. a charging main board; 15. a first electrode; 16. a conductive frame; 17. a high current wire; 18. a conductive block; 19. a contact pin; 191. a limit foot; 2. a conductive spring; 3. a dust cover; 31. a chute; 4. a winding cover; 41. a winding shaft; 5. a charging wire; 51. a first interface end; 511. a slide block; 52. a second interface end; 6. a rewind spring; 7. a wind-up roll; 71. a winding groove; 72. a coil spring; 8. a locking gear; 81. wedge blocks; 9. a fixed cylinder; 91. a moving rod; 92. a moving block; 93. a return spring; 10. a storage cover; 101. and a sub-cover.

Detailed Description

The application is described in further detail below with reference to fig. 1-6.

Examples:

Referring to fig. 1 and 2, a high-current vehicle-mounted charger includes a charger body 1, where the charger body 1 includes a housing 11, and one end of the housing 11 is an external connection terminal 12 for charging and accessing an external electronic device. The other end of the housing 11 is a conductive terminal 13 for accessing a vehicle-mounted charging port in an automobile. The charging main board 14 is fixedly installed in the shell 11, the first electrode 15 is arranged at the conductive end 13 of the shell 11, the conductive component is arranged in the shell 11, and the first electrode 15 is electrically connected with the charging main board 14 through the conductive component. Wherein the conductive assembly comprises a conductive frame 16 and a high current wire 17. The conductive frame 16 is welded on the charging motherboard 14, and the conductive frame 16 is electrically connected to the charging motherboard 14. A conductive block 18 is fixed to a side of the first electrode 15 facing the conductive frame 16, and the conductive block 18 helps to increase a contact area between the first electrode 15 and the conductive frame 16. The conductive frame 16 is provided with a steady flow buffer assembly for electrically connecting with the conductive block 18. The conductive block 18 is fixed with a contact pin 19 towards one side of the conductive frame 16, and the contact pin 19 penetrates through one end of the conductive frame 16 far away from the charging main board 14 and is in sliding connection with the charging main board 14. The heavy current wire 17 can carry at least 1A of current, the heavy current wire 17 is installed in the housing 11, one end of the heavy current wire 17 is electrically connected to the contact pin 19, and the other end of the heavy current wire 17 is electrically connected to the charging motherboard 14.

Specifically, referring to fig. 1, the jounce bumper assembly includes an electrically conductive spring 2. The conductive spring 2 is installed in the shell 11, the contact pin 19 is sleeved on the conductive spring 2, one end of the conductive spring 2 is fixedly connected with the conductive block 18, and the other end of the conductive spring 2 is fixedly connected with the conductive frame 16. The end of the contact pin 19 facing away from the conductive block 18 is fixed with a limit pin 191, and the limit pin 191 is beneficial to avoiding the first motor from sliding off the conductive frame 16 as much as possible.

It should be noted that the conductive spring 2 can be electrically connected.

When the vehicle-mounted charger is used, the conductive end 13 of the vehicle-mounted charger is aligned and inserted into the vehicle-mounted charging port, at the moment, the first electrode 15 is pressed by the vehicle-mounted charging port, the first electrode 15 compresses the conductive spring 2 through the conductive block 18, and the first electrode 15 is prevented from being deformed and damaged by compression. The conductive block 18 abuts against one side of the conductive frame 16. Under the conduction action of the conductive block 18, the conductive spring 2 and the high-current wire 17, the stability of current transmission is improved, and high-power electronic equipment can be charged.

Referring to fig. 1-3, in order to avoid tea or dust from falling to the external connection end 12 of the vehicle-mounted charger as much as possible, the normal use of the circuit is affected, and the external connection end 12 of the housing 11 is hinged with a dust cover 3. The back of shield 3 is fixed with rolling lid 4, and shield 3 is linked together with rolling lid 4. The charging wire 5 is wound in the winding cover 4, the charging wire 5 is used for charging electronic equipment, and the quantity and the Type of the charging wire 5 can be selected according to actual conditions, such as a Micro USB socket, a Type-C socket or a Lightning interface. In the present embodiment, one charge line 5 is provided in number for easy understanding. The charging cord 5 includes a first interface end 51 and a second interface end 52, the first interface end 51 extends into the dust cap 3, and the dust cap 3 is provided with a rewind assembly for winding the first interface end 51. The second interface end 52 penetrates through the winding cover 4 and extends out of the winding cover 4, and the winding cover 4 is provided with a winding mechanism for winding the second interface end 52.

In particular, referring to fig. 4, the rewind assembly comprises a rewind spring 6. Two sliding blocks 511 are fixed on two sides of the first interface end 51, two sliding grooves 31 are correspondingly formed in one side, away from the winding cover 4, of the dust cover 3, and the two sliding blocks 511 slide in the two sliding grooves 31 respectively. The rollback spring 6 is installed in the shield 3, and the charging wire 5 near first interface end 51 is located to rollback spring 6 cover, and rollback spring 6's one end and shield 3's inner wall fixed connection, rollback spring 6's the other end and charging wire 5's lateral wall fixed connection.

It should be noted that the charging cord 5 near the first interface end 51 has a sufficient length to be placed in the dust cap 3.

When the first interface end 51 is pulled out of the dust cap 3, the first interface end 51 drives the slider 511 to slide in the sliding groove 31, and the charging wire 5 stretches the rewind spring 6. It should be noted that the elasticity of the rewind spring 6 is lower than the friction force when the first interface end 51 is inserted into the external connection end 12. When the first connector end 51 is released by the hands, the spring force is released by the rewinding spring 6, and the charging wire 5 is driven to be accommodated in the dust cover 3.

Specifically, referring to fig. 3 and 4, the winding mechanism includes a winding roller 7. The winding cover 4 is internally fixed with a winding shaft 41, and the winding shaft 41 is rotatably sleeved with the winding roller 7. One end of the charging wire 5, which is close to the second interface end 52, is wound on the winding roller 7, a winding groove 71 is formed in one end of the winding roller 7, a coil spring 72 is installed in the winding groove 71, one end of the coil spring 72 is fixedly connected with the winding shaft 41, and the other end of the coil spring 72 is fixedly connected with the groove wall of the winding groove 71.

When the second interface end 52 is pulled out of the winding cover 4, the second interface end 52 drives the winding roller 7 to rotate, and the coil spring 72 is elastically deformed. When the second interface end 52 is released by releasing the hand, the spring force is released by the coil spring 72, and the winding roller 7 is driven to reset and rotate, so that the second interface end 52 is wound. The winding roller 7 has a sufficient length for the winding roller 7 to rotate when stretching and winding the second interface end 52, and the charging wire 5 near the first interface end 51.

Referring to fig. 3 and 4, to facilitate securing the second interface end 52 to a stretched length, the roll cover 4 is provided with a locking mechanism. The locking mechanism comprises a locking gear 8 and a wedge block 81, the locking gear 8 is rotationally sleeved on the winding shaft 41, and the locking gear 8 is coaxially fixed at one end of the winding roller 7, which is away from the coil spring 72. The wedge block 81 moves inside the winding cover 4, and the wedge block 81 cooperates with the tooth root of the lock gear 8.

Referring to fig. 5, to improve the stability of the engagement of the wedge block 81 with the tooth root of the locking gear 8, the winding cap 4 is provided with a moving assembly including a moving lever 91 and a return spring 93. The fixed cylinder 9 is fixed in the winding cover 4, the wedge block 81 moves below the fixed cylinder 9, the moving rod 91 moves in the fixed cylinder 9, and one end of the moving rod 91 penetrates through the fixed cylinder 9 and is fixedly connected with the wedge block 81. The other end of the moving rod 91 sequentially penetrates the fixed cylinder 9 and the winding cover 4, and extends out of the winding cover 4. The fixed ring of lateral wall of movable rod 91 is equipped with movable block 92, and in movable block 92 slid and the fixed section of thick bamboo 9, reset spring 93 cover was located movable rod 91, and reset spring 93's one end and movable block 92 fixed connection, reset spring 93's the other end and fixed section of thick bamboo 9 inner wall fixed connection.

When the moving rod 91 is pulled in a direction away from the winding cover 4, the moving rod 91 drives the moving block 92 and the wedge block 81 to move, at this time, the wedge block 81 is separated from the locking gear 8, the moving block 92 compresses the return spring 93, and the rotating roller is released from control and can rotate in a direction towards the winding second interface end 52. When the hand is released to release the moving rod 91, the reset spring 93 releases the elastic force, and finally drives the wedge block 81 to be matched with the tooth root of the locking gear 8 through the moving block 92, at this time, the wind-up roller 7 can only rotate along the stretching direction of the second interface end 52, and the second interface end 52 is locked at the current stretching length.

Referring to fig. 3 and 6, in order to reduce tea or dust from falling to the second interface end 52, an end cap of the dust cover 3, which is far from the outside of the housing 11, is provided with a receiving cover 10, and the receiving cover 10 is covered with the winding cover 4.

Referring to fig. 5 and 6, a sub-cover 101 slides in the housing cover 10, and the sub-cover 101 is used to cover the conductive terminal 13 of the in-vehicle charger.

When the vehicle-mounted charger is not used and is stored, the sub-cover 101 is firstly slid from the storage cover 10, and then the sub-cover 101 is covered with the conductive end 13 of the vehicle-mounted charger, so that the first motor is prevented from being exposed to the air and oxidized and corroded. Then, the housing cover 10 is covered on the dust cover 3 to complete housing.

The working principle of the high-current vehicle-mounted charger is as follows:

When a vehicle-mounted charger is required to charge large-capacity equipment such as a tablet personal computer and a charger, the conductive end 13 of the vehicle-mounted charger is aligned and inserted into a vehicle-mounted charging port, the first electrode 15 is extruded and moves towards the direction close to the conductive frame 16, the first electrode 15 drives the conductive block 18 to move towards the direction close to the conductive frame 16, and the conductive block 18 compresses the conductive spring 2 and abuts against one side of the conductive frame 16. The conductive block 18 increases the contact area between the first electrode 15 and the conductive frame 16, the conductive spring 2 buffers the extrusion force of the first motor, and simultaneously, under the electrical transmission of the high-current wire 17, the conductive current of the first electrode 15 is increased, so that the high-capacity equipment is charged.

In summary, under the action of the conductive block 18, the conductive spring 2 and the high-current wire 17, the charging efficiency of the high-capacity devices such as the charger, the tablet computer and the like is improved.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. The utility model provides a heavy current vehicle-mounted charger, includes charger body (1), its characterized in that: the charger comprises a charger body (1), wherein the charger body (1) comprises a shell (11), an external connection end (12) is arranged at one end of the shell (11), a conductive block (18) is arranged at the other end of the shell (11), a charging main board (14) is arranged in the shell (11), a first electrode (15) is arranged in the conductive block (13), a conductive component is arranged in the shell (11), the first electrode (15) is electrically connected with the charging main board (14) through the conductive component, the conductive component comprises a conductive frame (16) and a high-current wire (17), the conductive frame (16) is electrically connected with the charging main board (14), a conductive block (18) is arranged at one side of the first electrode (15) facing the conductive frame (16), a steady-flow buffer component used for being electrically connected with the conductive block (18) is arranged at one side of the conductive frame (16), the contact pin (19) penetrates through the conductive frame (16) and is electrically connected with the high-current wire (17) at the other end of the conductive frame (16).

The anti-dust device is characterized in that the outer end (12) of the shell (11) is hinged with a dust cover (3), the back of the dust cover (3) is provided with a rolling cover (4), the dust cover (3) is communicated with the rolling cover (4), a charging wire (5) is arranged in the rolling cover (4), the charging wire (5) comprises a first interface end (51) and a second interface end (52), the first interface end (51) extends into the dust cover (3), the dust cover (3) is provided with a rollback assembly for rolling the first interface end (51), the second interface end (52) penetrates through and extends out of the rolling cover (4), and the rolling cover (4) is provided with a rolling mechanism for rolling the second interface end (52);

The rewinding assembly comprises a rewinding spring (6), sliding blocks (511) are arranged on two sides of the first interface end (51), a sliding groove (31) is correspondingly formed in one side, deviating from the winding cover (4), of the dust cover (3), the sliding blocks (511) are in sliding connection with the sliding groove (31), the rewinding spring (6) is sleeved on the side wall, close to the first interface end (51), of the charging wire (5), one end of the rewinding spring (6) is fixedly connected with the inner wall of the dust cover (3), and the other end of the rewinding spring (6) is fixedly connected with the side wall of the charging wire (5);

The winding mechanism comprises a winding roller (7), a winding shaft (41) is fixed in the winding cover (4), the winding shaft (41) is rotatably sleeved with the winding roller (7), one end, close to the second interface end (52), of the charging wire (5) is wound on the winding roller (7), a winding groove (71) is formed in one end of the winding roller (7), a coil spring (72) is arranged in the winding groove (71), one end of the coil spring (72) is fixedly connected with the side wall of the winding shaft (41), and the other end of the coil spring (72) is fixedly connected with the groove wall of the winding groove (71);

The winding cover (4) is provided with a locking mechanism for locking the rotation of the winding roller (7), the locking mechanism comprises a locking gear (8) and a wedge block (81), the locking gear (8) is fixedly arranged at one end, deviating from the coil spring (72), of the winding roller (7), the wedge block (81) moves in the winding cover (4), the wedge block (81) is matched with the locking gear (8), and the winding cover (4) is provided with a moving assembly for assisting the wedge block (81) to be matched with the locking gear (8);

The utility model provides a movable assembly, including movable rod (91) and reset spring (93), be provided with fixed section of thick bamboo (9) in rolling lid (4), movable rod (91) remove in fixed section of thick bamboo (9), the one end of movable rod (91) run through fixed section of thick bamboo (9), and with wedge (81) fixed connection, the other end of movable rod (91) runs through in proper order fixed section of thick bamboo (9), rolling lid (4) and extend to outside rolling lid (4) lateral wall, the lateral wall solid fixed ring of movable rod (91) is equipped with movable block (92), reset spring (93) cover is located movable rod (91), the one end of reset spring (93) with movable block (92) fixed connection, the other end of reset spring (93) with fixed section of thick bamboo (9) inner wall fixed connection.

2. A high current vehicle charger according to claim 1, wherein: the steady flow buffer assembly comprises a conductive spring (2), the conductive spring (2) is sleeved on the contact pin (19), one end of the conductive spring (2) is fixedly connected with the conductive block (18), the other end of the conductive spring (2) is fixedly connected with the conductive frame (16), and one end, deviating from the conductive block (18), of the contact pin (19) is provided with a limiting pin (191).

3. A high current vehicle charger according to claim 1, wherein: an end cover of the dust cover (3) which is far away from the shell (11) is provided with a containing cover (10).

4. A high current vehicle charger according to claim 3, wherein: a sub-cover (101) for covering the conductive end (13) is arranged in the storage cover (10) in a sliding manner.