CN117374659B

CN117374659B - USB charging connector

Info

Publication number: CN117374659B
Application number: CN202311511858.XA
Authority: CN
Inventors: 屈国辉; 胡毅群; 唐华民; 李友良; 包学兴
Original assignee: Dongguan Yujin Industrial Co ltd
Current assignee: Dongguan Yujin Industrial Co ltd
Priority date: 2023-11-14
Filing date: 2023-11-14
Publication date: 2024-07-30
Anticipated expiration: 2043-11-14
Also published as: CN117374659A

Abstract

The invention discloses a USB charging connector, which comprises a charging wire, a charging female head and a charging male head, wherein the charging female head and the charging male head are arranged at two ends of the charging wire; the charging wire, the charging female head and the charging male head form a charging loop; the charging male comprises a male body and a sliding seat sleeved on the male body, a first elastic piece is arranged between the sliding seat and the male body, a male unit is arranged in the male body in a sliding manner, an opening for the male unit to extend out is formed in the sliding seat, a first transmission unit is arranged between the male unit and the sliding seat, a locking structure is arranged between the male body and the sliding seat, and an electromagnetic driving unit connected in series in a charging loop is arranged in the male body; according to the invention, after the external mobile terminal is charged, the electromagnetic driving unit, the first elastic piece and the locking structure are matched, so that the male unit is automatically separated from the external mobile terminal, and the charging loop is cut off, thereby avoiding that the male unit is still spliced on the external mobile terminal after the charging is finished, and ensuring that the structure is safer and more reliable to use.

Description

USB charging connector

Technical Field

The invention relates to the technical field of connectors, in particular to a USB charging connector.

Background

The USB charging connector is an indispensable device for charging a mobile terminal in daily life. In the actual use process, the plug end of the USB charging connector is inserted into the socket of the mobile terminal, so that a charging loop is connected for charging the mobile terminal until the mobile terminal is full of electricity; however, after the mobile terminal is fully charged, the plug end of the USB charging connector is still plugged into the socket of the mobile terminal, and the user needs to manually pull out the plug end; thus, when the user does not pull out, the charging circuit is kept in an on state continuously, so that the structure is not safe to use.

Disclosure of Invention

The present invention aims to overcome the above-mentioned drawbacks and provide a USB charging connector with a more secure and reliable structure.

In order to achieve the above object, the present invention is specifically as follows:

A USB charging connector comprises a charging wire, a charging female head and a charging male head, wherein the charging female head and the charging male head are arranged at two ends of the charging wire; the charging wire, the charging female head and the charging male head form a charging loop;

The charging male head comprises a male head body and a sliding seat sleeved on the male head body, a first elastic piece is arranged between the sliding seat and the male head body, a male head unit is arranged in the male head body in a sliding mode, an opening for the male head unit to extend out is formed in the sliding seat, a first transmission unit is arranged between the male head unit and the sliding seat, a locking structure is arranged between the male head body and the sliding seat, and an electromagnetic driving unit connected in series with a charging loop is arranged in the male head body.

Optionally, the electromagnetic drive unit includes the drive bracket of fixing on public first body, locate the solenoid of drive bracket, wear to locate the iron rod in the solenoid and the second elastic component of iron rod is located to the cover, and the solenoid establishes ties on charging circuit, and the both ends of second elastic component are respectively with the one end looks butt of drive bracket and iron rod, and the other end slip of iron rod runs through the drive bracket after being connected with public first unit.

Optionally, the locking structure includes locating the knot hole of public first body lateral wall and locating the locking plate of sliding seat inside wall, when public first unit stretches out the opening in place, in the locking plate card goes into the knot hole.

Optionally, the first transmission unit includes the first rack that locates the interior diapire of sliding seat, rotates the drive gear who cross-connects on public first body lateral wall and locates the second rack of the interior diapire of public first body, drive gear's both ends respectively with first rack and second rack meshing.

Optionally, a mounting seat is arranged in the male head body, and the mounting seat is provided with an alarm unit and a conductive club connected in series on the charging loop in a sliding manner; a third elastic piece is connected between the conductive ball rod and the mounting seat; the alarm unit comprises a conductive inserted bar, an alarm module and a first memory spring, wherein the conductive inserted bar is arranged on the mounting seat in a sliding mode, the alarm module is arranged opposite to the conductive inserted bar, the first memory spring is arranged between the conductive inserted bar and the mounting seat, the conductive inserted bar is pushed to slide when the temperature reaches a deformation temperature threshold value of the first memory spring, the conductive inserted bar is extruded to slide to be connected onto the charging circuit in series, and the alarm module is electrically connected.

Optionally, the connecting wire tip is equipped with first conductive contact, be equipped with the outage unit in the public head is internal, the outage unit is including rotating the crossover sub of locating the mount pad and being connected with electrically conductive club electric connection, the first helical gear of locating the crossover sub and meshing with first helical gear is located to the horizontal slip, the vertical slip locates the mount pad and with the second helical gear of first helical gear meshing, locate the sliding plate of second helical gear and locate the second memory spring between sliding plate and the mount pad, the crossover sub is equipped with the second conductive contact that can contact with first conductive contact and switch on.

Optionally, the number of the first diagonal racks is two, the number of the second diagonal racks is two, the two second diagonal racks are symmetrically distributed on two sides of the switching joint, one ends of the two second diagonal racks are meshed with the two first diagonal racks in a one-to-one correspondence mode, and two ends of the sliding plate are fixedly connected with the other ends of the two diagonal racks.

Optionally, the number of the electromagnetic driving units is two, and the two electromagnetic driving units are symmetrically distributed on two sides of the male unit.

Optionally, a cleaning unit is arranged at a position corresponding to the male unit in the male body, the sliding seat is provided with a second transmission unit, and the cleaning unit is driven to clean the male unit when the sliding seat slides relative to the male body through the transmission of the second transmission unit.

Optionally, the cleaning unit comprises a cleaning support fixedly connected to the male body, a magnetic component arranged on the cleaning support, an iron plate elastically arranged on the magnetic component and a cleaning brush arranged on the iron plate, wherein the magnetic component is connected with the second transmission unit, so that the magnetic component alternately and reciprocally attracts and cuts off the iron plate.

The beneficial effects of the invention are as follows: according to the invention, the first elastic piece is arranged between the sliding seat of the charging male head and the male head body, the male head unit is arranged in a sliding manner, the first transmission unit male is arranged between the male head unit and the sliding seat, the locking structure is arranged between the head body and the sliding seat, and the electromagnetic driving unit is arranged in the male head body, so that after the external mobile terminal is charged, the male head unit is automatically separated from the external mobile terminal by utilizing the matching of the electromagnetic driving unit, the first elastic piece and the locking structure, and a charging loop is cut off, so that the male head unit is prevented from being still spliced on the external mobile terminal after the charging is finished, and the structure is safer and more reliable to use.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the structure of the male unit of the present invention when it is extended from the opening;

FIG. 3 is a schematic partial cross-sectional view of the present invention;

FIG. 4 is an exploded view of the charging male of the present invention;

FIG. 5 is a schematic cross-sectional view of a charging male of the present invention;

Fig. 6 is a schematic structural view of the charging male with the male body and the sliding seat hidden;

Fig. 7 is a schematic structural view of the electromagnetic driving unit of the present invention;

FIG. 8 is a schematic diagram of the power down unit of the present invention;

FIG. 9 is a schematic view of the structure of the cleaning unit of the present invention;

FIG. 10 is a schematic view of the structure of the magnetic assembly of the present invention;

Reference numerals illustrate: 1. a charging wire; 11. a first conductive contact; 2. charging the female head; 3. a charging male; 31. a male body; 311. a button hole; 32. a sliding seat; 321. an elastic film; 322. an opening; 323. a locking plate; 324. a third rack; 33. a first elastic member; 34. a male unit; 351. a first rack; 352. a transmission gear; 353. a second rack; 36. an electromagnetic drive unit; 361. a drive bracket; 362. an electromagnetic coil; 363. an iron rod; 364. a second elastic member; 37. a mounting base; 371. a conductive cue; 372. a third elastic member; 373. a conductive plunger; 374. an alarm module; 375. a first memory spring; 381. a switching joint; 382. a first helical rack; 383. bevel gear; 384. a second helical rack; 385. a sliding plate; 386. a second memory spring; 387. a second conductive contact; 39. a cleaning unit; 391. a cleaning support; 392. a magnetic assembly; 3921. a housing; 3922. a semicircular soft magnet; 3923. a strong magnet; 3924. brass blocks; 393. an iron plate; 394. cleaning a brush; 395. a driven gear; 396. and a fourth elastic member.

Detailed Description

The invention will now be described in further detail with reference to the drawings and the specific embodiments, without limiting the scope of the invention.

As shown in fig. 1 to 10, a USB charging connector according to the present embodiment includes a charging wire 1, a charging female head 2 and a charging male head 3 disposed at two ends of the charging wire 1; the charging wire 1, the charging female head 2 and the charging male head 3 form a charging loop; specifically, the charging female head 2 is a USB interface, and is configured to plug with an external charger head, and the charging male head 3 may be a lighting interface, a Type-C interface, or a Micro USB interface, and is configured to plug with an external mobile terminal;

The charging male 3 comprises a male body 31 and a sliding seat 32 sleeved on the male body 31 in a sliding manner, a first elastic piece 33 is arranged between the sliding seat 32 and the male body 31, a male unit 34 is arranged in the male body 31 in a sliding manner, an opening 322 for the male unit 34 to extend out is formed in the sliding seat 32, a first transmission unit is arranged between the male unit 34 and the sliding seat 32, a locking structure is arranged between the male body 31 and the sliding seat 32, and an electromagnetic driving unit 36 connected in series with a charging circuit is arranged in the male body 31 so as to enable the electromagnetic driving unit 36 to synchronously conduct electricity when the charging circuit is connected.

Specifically, the male body 31 has a cavity recessed inward from an end away from the charging wire 1 to form a space for accommodating parts; the sliding seat 32 is slidably sleeved on the outer wall of the male body 31 and can slide relatively to the male body 31; preferably, an elastic membrane 321 is disposed at one end of the sliding seat 32 away from the charging wire 1, and an opening 322 is disposed on the elastic membrane 321; preferably, the first elastic member 33 is a tension spring, and in a natural state, the tension spring is in a free state, and when the sliding seat 32 slides relative to the male body 31, the tension spring is stretched to deform, so as to generate a tension force F1 on the sliding seat 32; the first transmission unit is connected between the male head seat and the sliding seat 32, so that when the sliding seat 32 slides, the male head unit 34 synchronously and reversely moves relative to the sliding seat 32 through the transmission of the first transmission unit, and the male head unit 34 can penetrate out of the opening 322; by providing the locking structure between the male body 31 and the sliding seat 32, after the sliding seat 32 slides in place, a locking force is generated on the sliding seat 32 by using the locking structure, and by connecting the electromagnetic driving units 36 in series in the charging circuit, the electromagnetic driving units 36 can be synchronously connected during charging, and the electromagnetic driving units 36 generate an outward pushing force on the male unit 34, so that the male unit 34 is kept in an extended state for charging operation.

According to the embodiment, the first elastic piece 33 is arranged between the sliding seat 32 and the male body 31 of the charging male 3, the male unit 34 is arranged in a sliding manner, the first transmission unit is arranged between the male unit 34 and the sliding seat 32, the locking structure is arranged between the head body and the sliding seat 32, and the electromagnetic driving unit 36 is arranged in the male body 31, so that after the external mobile terminal is charged, the electromagnetic driving unit 36, the first elastic piece 33 and the locking structure are matched, the male unit 34 is automatically separated from the external mobile terminal, a charging loop is cut off, the male unit 34 is prevented from being still inserted into the external mobile terminal after the charging is completed, and the structure is safer and more reliable to use.

Preferably, the male unit 34 includes a male base and a male terminal connected to the male base, and the aperture of the opening 322 is slightly smaller than the width of the male terminal, so that when the male terminal passes out of the opening 322, the aperture of the opening 322 is enlarged, the elastic membrane 321 is elastically clung to the male terminal, the tightness is better, and when the male terminal is retracted, the aperture of the opening 322 is reduced, so as to seal and protect the cavity to the greatest extent.

As shown in fig. 4 to 7, in some embodiments, the electromagnetic driving unit 36 includes a driving bracket 361 fixed on the male body 31, an electromagnetic coil 362 disposed on the driving bracket 361, an iron rod 363 passing through the electromagnetic coil 362, and a second elastic member 364 sleeved on the iron rod 363, wherein the electromagnetic coil 362 is serially connected to the charging circuit, two ends of the second elastic member 364 are respectively abutted against one ends of the driving bracket 361 and the iron rod 363, and the other end of the iron rod 363 is connected with the male unit 34 after sliding through the driving bracket 361. Specifically, the second elastic member 364 is a spring, and the other end of the iron rod 363 is fixedly connected with the male unit 34 through a connecting rod; in actual use, the sliding seat 32 drives the male unit 34 to slide synchronously, the male unit 34 drives the iron rod 363 to move, so that the spring is compressed, an elastic force F2 is generated on the iron rod 363, namely, an elastic force F2 is generated on the male unit 34, after the charging circuit is turned on, the electromagnetic coil 362 is electrified to generate a magnetic field, the magnetic field generates an ampere force F3 on the iron rod 363, so that the iron rod 363 generates a thrust on the male unit 34, and the male unit 34 is kept in an extended state for charging.

As shown in fig. 4 to 6, in some embodiments of a USB charging connector according to the present embodiment, the locking structure includes a latch hole 311 formed on a side wall of the male body 31 and a latch plate 323 formed on an inner side wall of the sliding seat 32, and when the male unit 34 extends out of the opening 322, the latch plate 323 is snapped into the latch hole 311. Specifically, two buckling holes 311 are formed on two side walls of the male body 31 and are distributed at intervals up and down, and two locking plates 323 are correspondingly arranged on two inner side walls of the sliding seat 32 and are distributed up and down; in actual use, the locking piece 323 is correspondingly locked into the buckling hole 311, so that a locking force F4 is generated on the sliding seat 32.

Specifically, the user holds the male body 31, the opening 322 of the elastic membrane 321 corresponds to the socket of the external mobile terminal, then pushes the male body 31, at this time, the sliding seat 32 is extruded by the side wall of the external mobile terminal and slides relative to the male body 31, meanwhile, the sliding seat 32 drives the male unit 34 to synchronously slide reversely through the first transmission unit, so that the male terminal of the male unit 34 is inserted into the socket of the external mobile terminal after passing through the opening 322 until the male terminal is inserted in place, thereby connecting the charging circuit and charging the external mobile terminal, at this time, the locking plate 323 is exactly clamped into the buckling hole 311, thereby generating a locking force F4 on the sliding seat 32, the spring generates an elastic force F2 on the male unit 34, the tension spring generates a tensile force F1 on the sliding seat 32, meanwhile, a friction force F is generated between the male unit 34 and the socket of the external mobile terminal, the electromagnetic coil 362 is electrified to generate a magnetic field, and an ampere force F3 is generated on the iron rod 363;

after the external mobile terminal is charged, the electrifying current in the electromagnetic induction coil is gradually reduced, under the action of the spring and the tension spring, the male unit 34 and the sliding seat 32 are automatically reset, the locking plate 323 is separated from the buckling hole 311, and the iron rod 363 is reset under the action of the spring, so that the male terminal of the male unit 34 is automatically withdrawn from the socket of the external mobile terminal, the male unit 34 is prevented from being inserted into the socket of the external mobile terminal after the charging is completed, and the structure is safer and more reliable to use.

In this embodiment, preferably, two sets of locking structures are provided, the two sets of locking structures are distributed on two sides of the male body 31, the first transmission units are provided with two sets, and the two sets of first transmission units are symmetrically distributed about the male unit 34.

As shown in fig. 3 to 6, in one embodiment of the USB charging connector according to the present embodiment, the first transmission unit includes a first rack 351 disposed on the inner bottom wall of the sliding seat 32, a transmission gear 352 rotatably connected to the side wall of the male body 31, and a second rack 353 disposed on the inner bottom wall of the male body 31, and two ends of the transmission gear 352 are respectively meshed with the first rack 351 and the second rack 353. Specifically, two connecting arms extend from the side wall of the male base, and the two connecting arms are correspondingly and rotatably connected with two ends of the transmission gear 352. In actual use, the sliding seat 32 drives the first rack 351 to move, the first rack 351 drives the transmission gear 352 to rotate, the transmission gear 352 is meshed with the second rack 353, and the second rack 353 is fixed on the male body 31, so that under the action of the second rack 353, the transmission gear 352 is driven to synchronously move along the first rack 351 and the second rack 353, the transmission gear 352 drives the male unit 34 to reversely move, and accordingly the male terminal of the male unit 34 is driven to reversely slide through the sliding seat 32 under the transmission of the first transmission unit, and the male terminal of the male unit 34 is penetrated out from the opening 322.

As shown in fig. 3 to 5, in a USB charging connector according to the present embodiment, in some embodiments, a mounting seat 37 is disposed in a male body 31, an alarm unit is disposed on the mounting seat 37, and a conductive ball rod 371 connected in series to a charging circuit is further slidably disposed on the mounting seat 37; a third elastic piece 372 is connected between the conductive club 371 and the mounting seat 37, preferably, the third elastic piece 372 is a spring; the alarm unit comprises a conductive insert rod 373 arranged on the mounting seat 37 in a sliding manner, an alarm module 374 arranged opposite to the conductive insert rod 373 in position and a first memory spring 375 arranged between the conductive insert rod 373 and the mounting seat 37, wherein the first memory spring 375 pushes the conductive insert rod 373 to slide when the temperature reaches the deformation temperature threshold value of the conductive insert rod 373, and the conductive insert rod 373 extrudes the conductive club 371 to slide to be connected in series on the charging loop and is electrically connected with the alarm module 374.

Specifically, one end of the conductive rod 371 is in contact conduction with the male unit 34 through a telescopic wire so as to adapt to sliding motion of the conductive rod 371 and the male unit 34, an inclined surface structure and a plane structure are arranged at the bottom of the conductive rod 373, the conductive rod 373 is matched with the conductive rod 371 through the inclined surface structure so as to push the conductive rod 371 to slide, the conductive rod 373 is in contact with the alarm module 374 through the plane structure, the alarm module 374 is electrically connected, and accordingly the alarm module 374 sends an alarm signal so as to prompt a user that the temperature of the connector is abnormal.

When the connector fails abnormally (the working temperature is too high), and the working temperature is larger than the deformation temperature threshold value T1 of the first memory spring 375, the first memory spring 375 pushes the conductive insert rod 373 to slide towards the conductive club 371, the inclined surface structure of the conductive insert rod 373 contacts with the conductive club 371, the conductive insert rod 373 is extruded to slide, the third elastic member 372 is compressed, and the charging loop is kept in a connection state, so that the alarm module 374 sends an alarm signal, and the alarm module 374 is electrified until the plane structure of the conductive insert rod 373 is in contact conduction with the alarm module 374, so that the alarm signal is triggered. When the working temperature of the connector is reduced to be less than the deformation temperature threshold T1 of the first memory spring 375, the first memory spring 375 drives the conductive insert rod 373 to reset, the conductive insert rod 373 cuts off the power supply of the alarm module 374, and the conductive club 371 resets under the action of the third elastic member 372, so as to keep the charging loop in a communication state.

As shown in fig. 3 to 6 and 8, in some embodiments, a first conductive contact 11 is disposed at an end of a connection wire, a power-off unit is disposed in a male body 31, the power-off unit includes a switching joint 381 rotatably disposed on a mounting seat 37 and electrically connected to a conductive ball bar 371, a first diagonal rack 382 horizontally slidably disposed on the mounting seat 37, a helical gear 383 sleeved on the switching joint 381 and engaged with the first diagonal rack 382, a second diagonal rack 384 vertically slidably disposed on the mounting seat 37 and engaged with the first diagonal rack 382, a sliding plate 385 disposed on the second diagonal rack 384, and a second memory spring 386 disposed between the sliding plate 385 and the mounting seat 37, the switching joint 381 is provided with a second conductive contact 387 capable of being in contact conduction with the first conductive contact 11, and a deformation temperature threshold T2 of the second memory spring 386 is greater than a deformation temperature threshold T1 of the first memory spring 375. Specifically, the other end of the conductive rod 371 is in contact with the switch joint 381 via a telescoping wire to accommodate sliding movement of the conductive rod 371.

Initially, the second conductive contact 387 of the switching connector 381 is correspondingly contacted and conducted with the first conductive contact 11 on the connecting wire, so as to realize the electrical connection between the connecting wire and the charging male head 3; when the connector fails and is abnormal and the working temperature is greater than the deformation temperature threshold T2 of the second memory spring 386, the second memory spring 386 pushes the sliding plate 385 to move, the sliding plate 385 drives the second diagonal rack 384 to slide downwards, the second diagonal rack 384 drives the first diagonal rack 382 to slide horizontally, the first diagonal rack 382 drives the helical gear 383 to rotate, and the helical gear 383 drives the switching joint 381 to rotate, so that the second conductive contact 387 and the first conductive contact 11 are staggered from each other, and a charging circuit is cut off, so that the temperature is further increased, and the risk of fire is prevented. When the working temperature of the connector is reduced to be less than the deformation temperature threshold T2 of the second memory spring 386, the second memory spring 386 drives the sliding plate 385 to reset, so that the switching joint 381 reversely rotates through the transmission of the second diagonal rack 384, the first diagonal rack 382 and the helical gear 383, and the second conductive contact 387 and the first conductive contact 11 are restored to the contact conduction state, so that the structure is safer and more reliable to use.

In some embodiments, the number of the first diagonal racks 382 is two, the number of the second diagonal racks 384 is two, the two second diagonal racks 384 are symmetrically distributed on two sides of the switch connector 381, one ends of the two second diagonal racks 384 are engaged with the two first diagonal racks 382 in a one-to-one correspondence manner, and two ends of the sliding plate 385 are fixedly connected with the other ends of the two diagonal racks. So configured, the sliding plate 385 moves more stably when the second memory spring 386 drives the sliding plate 385.

In some embodiments, the number of the electromagnetic driving units 36 is two, and the two electromagnetic driving units 36 are symmetrically distributed on two sides of the male unit 34. In this embodiment, two electromagnetic driving units 36 are arranged to act on the male unit 34 at the same time, so that the male unit 34 is stressed more uniformly and slides more stably.

As shown in fig. 3 to 6 and 9, in one USB charging connector according to the present embodiment, in some embodiments, a cleaning unit 39 is disposed in the male body 31 at a position corresponding to the male unit 34, and the sliding seat 32 is provided with a second transmission unit, so that when the sliding seat 32 slides relative to the male body 31, the cleaning unit 39 is driven to perform cleaning treatment on the male unit 34. Preferably, the second transmission unit is a third rack 324, and the cleaning unit 39 is provided with a driven gear 395 meshed with the third rack 324, so that when the sliding seat 32 slides, the sliding seat 32 drives the third rack 324 to move, the third rack 324 drives the driven gear 395 to rotate, and the driven gear 395 enables the cleaning unit 39 to perform cleaning treatment on the male unit 34. Preferably, the number of the cleaning units 39 is two, the two cleaning units 39 are oppositely arranged, and the number of the third racks 324 is correspondingly arranged to drive the cleaning units 39 to work respectively.

As shown in fig. 9 and 10, in this embodiment, the cleaning unit 39 includes a cleaning support 391 fixedly connected to the male body 31, a magnetic assembly 392 disposed on the cleaning support 391, an iron plate 393 elastically disposed on the magnetic assembly 392, and a cleaning brush 394 disposed on the iron plate 393, and the magnetic assembly 392 is connected to the second transmission unit, so that the magnetic assembly 392 alternately magnetically attracts and breaks the iron plate 393, and the iron plate 393 drives the cleaning brush 394 to reciprocate, so as to perform cleaning operation on the male terminal of the male unit 34. Preferably, two sets of magnetic force assemblies 392 are provided side by side on the cleaning support 391 to provide sufficient driving force for the iron plate 393 to reciprocate the cleaning brush 394. Preferably, a plurality of fourth elastic members 396 are connected between the iron plate 393 and the magnetic force assembly 392, and the fourth elastic members 396 are springs.

Specifically, as shown in fig. 10, the magnetic force assembly 392 includes a housing 3921 fixedly connected to the cleaning support 391 and two semicircular soft magnets 3922 oppositely disposed in the housing 3921, two ends of the two semicircular soft magnets 3922 are respectively connected by a brass block 3924 with poor magnetic conductivity, a strong magnet 3923 is rotatably connected in a space defined by the two semicircular soft magnets 3922, and the strong magnet 3923 is fixedly connected with the driven gear 395.

Specifically, when the sliding seat 32 slides, the driven gear 395 is driven by the third rack 324 to rotate, and the driven gear 395 drives the strong magnet 3923 to rotate continuously;

When the N pole and the S pole of the strong magnet 3923 rotate to correspond to the positions of the brass blocks 3924 respectively, the magnetic induction line emitted by the N pole of the strong magnet 3923 returns to the S pole of the strong magnet 3923 through the semicircular soft magnet 3922, at this time, the magnetic component 392 does not magnetically attract the iron plate 393, namely, is disconnected, and the iron plate 393 moves towards a direction away from the magnetic component 392 under the elastic action of the fourth elastic piece 396;

When the N pole and the S pole of the strong magnet 3923 rotate to correspond to the positions of the semicircular soft magnet 3922 respectively, the magnetic induction lines emitted by the N pole of the strong magnet 3923 are blocked by the two brass blocks 3924, the iron plate 393 is magnetically attracted and returns to the S pole of the strong magnet 3923, so that the iron plate 393 compresses the fourth elastic piece 396 to move towards the direction of the magnetic assembly 392, and as the strong magnet 3923 continuously rotates, the iron plate 393 is alternately magnetically attracted and disconnected in a reciprocating manner, so that the cleaning brush 394 is driven to reciprocate, and the male unit 34 is cleaned, namely, the male unit 34 can be cleaned in the extending and retracting processes of the male unit 34, and the electrical performance of the male unit 34 is ensured.

The foregoing description is only one preferred embodiment of the invention, and therefore all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the invention are intended to be embraced therein.

Claims

1. The USB charging connector is characterized by comprising a charging wire, a charging female head and a charging male head, wherein the charging female head and the charging male head are arranged at two ends of the charging wire; the charging wire, the charging female head and the charging male head form a charging loop;

The charging male comprises a male body and a sliding seat sleeved on the male body, a first elastic piece is arranged between the sliding seat and the male body, a male unit is arranged in the male body in a sliding manner, an opening for the male unit to extend out is formed in the sliding seat, a first transmission unit is arranged between the male unit and the sliding seat, a locking structure is arranged between the male body and the sliding seat, and an electromagnetic driving unit connected in series in a charging loop is arranged in the male body;

the electromagnetic driving unit comprises a driving bracket fixed on the male head body, an electromagnetic coil arranged on the driving bracket, an iron rod penetrating through the electromagnetic coil and a second elastic piece sleeved on the iron rod, the electromagnetic coil is connected in series on the charging loop, two ends of the second elastic piece are respectively abutted against one end of the driving bracket and one end of the iron rod, and the other end of the iron rod penetrates through the driving bracket in a sliding manner and then is connected with the male head unit;

The locking structure comprises a buckling hole arranged on the side wall of the male body and a locking plate arranged on the inner side wall of the sliding seat, and when the male unit stretches out of the opening to the right position, the locking plate is clamped into the buckling hole;

The first transmission unit comprises a first rack arranged on the inner bottom wall of the sliding seat, a transmission gear rotatably connected on the side wall of the male body in a penetrating way, and a second rack arranged on the inner bottom wall of the male body, and two ends of the transmission gear are respectively meshed with the first rack and the second rack;

The male head body is internally provided with a mounting seat, and the mounting seat is provided with an alarm unit and a conductive club connected in series on the charging loop in a sliding manner; a third elastic piece is connected between the conductive ball rod and the mounting seat;

The alarm unit comprises a conductive inserted bar, an alarm module and a first memory spring, wherein the conductive inserted bar is arranged on the mounting seat in a sliding mode, the alarm module is arranged opposite to the conductive inserted bar, the first memory spring is arranged between the conductive inserted bar and the mounting seat, the conductive inserted bar is pushed to slide when the temperature reaches a deformation temperature threshold value of the first memory spring, the conductive inserted bar is extruded to slide to be connected onto the charging circuit in series, and the alarm module is electrically connected.

2. The USB charging connector according to claim 1 wherein the end of the connecting wire is provided with a first conductive contact, and the male body is provided with a power-off unit;

The power-off unit comprises a switching joint, a first helical gear, a second helical gear, a sliding plate and a second memory spring, wherein the switching joint is rotationally arranged on the mounting seat and is electrically connected with the conductive ball rod, the first helical gear is horizontally arranged on the mounting seat in a sliding mode, the helical gear is sleeved on the switching joint and is meshed with the first helical gear, the second helical gear is vertically arranged on the mounting seat in a sliding mode and is meshed with the first helical gear, the sliding plate is arranged on the second helical gear, the second memory spring is arranged between the sliding plate and the mounting seat, and the second conductive contact is in contact conduction with the first conductive contact.

3. The USB charging connector according to claim 2 wherein the number of the first diagonal racks is two, the number of the second diagonal racks is two, the two second diagonal racks are symmetrically distributed on two sides of the switching joint, one ends of the two second diagonal racks are meshed with the two first diagonal racks in a one-to-one correspondence manner, and two ends of the sliding plate are fixedly connected with the other ends of the two diagonal racks.

4. The USB charging connector of claim 1, wherein the number of electromagnetic driving units is two, and the two electromagnetic driving units are symmetrically distributed on two sides of the male unit.

5. The USB charging connector according to claim 1 wherein the cleaning unit is disposed in the male body at a position corresponding to the male unit, and the sliding seat is provided with a second transmission unit, and the second transmission unit is used for driving the cleaning unit to clean the male unit when the sliding seat slides relative to the male body.

6. The USB charging connector according to claim 5 wherein the cleaning unit includes a cleaning bracket fixedly connected to the male body, a magnetic assembly provided to the cleaning bracket, an iron plate elastically provided to the magnetic assembly, and a cleaning brush provided to the iron plate, the magnetic assembly being connected to the second transmission unit so that the magnetic assembly alternately magnetically attracts and breaks the iron plate.