Vehicle-mounted dual-interface built-in charger

Abstract

The vehicle-mounted dual-interface built-in charger comprises a shell, a PCB, a standard USB interface, a Type-C interface and a rear cover, the standard USB interface and the Type-C interface are installed on the PCB, the front end face of the shell is provided with a first window and a second window, the standard USB interface and the Type-C interface penetrate through and are exposed in the first window and the second window respectively, and a cable connected with the PCB penetrates through a hole site of the rear cover to be exposed out of the rear cover. A protective cover which can be sleeved at the front end of the shell to seal the first window and the second window or can be opened relative to the shell to expose the first window and the second window is pivoted at the front end of the shell, a torsional spring is further arranged between the protective cover and the front end of the shell, and the torsional spring provides elastic supporting force for the protective cover after the protective cover is opened relative to the shell. According to the utility model, the USB interface and the Type-C interface are provided at the same time, so that different charging lines can be adapted to use; according to the utility model, the protective cover additionally arranged can cover the standard USB interface and the Type-C interface, and has a good protection effect.

Description

Technical fields:

[0001] This utility model relates to the technical field of charger products, and specifically to a vehicle-mounted dual-interface built-in charger. Background technology:

[0002] Golf carts are environmentally friendly passenger vehicles specifically designed and developed for golf courses. In actual use, as golfers continuously swing to hit the golf ball, the ball flies a considerable distance. The golfer then uses the golf cart to move to the landing point, reducing physical exertion and saving unnecessary time, allowing them to be in better condition for the game. Therefore, to address the issue of mobile electronic devices running out of power quickly, chargers are installed on golf carts, enabling golfers and related personnel to charge their electronic devices promptly.

[0003] Chinese utility model patent application number 202321003365.0 discloses a vehicle charger and a vehicle. The vehicle charger includes: a housing with a first connecting hole, a receiving cavity, and a second connecting hole. The receiving cavity communicates with the outside of the housing through the first and second connecting holes, and the housing is used to connect vehicle-mounted equipment; a circuit board disposed within the receiving cavity, the circuit board including a first interface and a second interface. The first interface is partially disposed within the first connecting hole and is used to connect the vehicle-mounted equipment, and the second interface is used to connect a charging cable; and a sealing structure. One end of the sealing structure is sealed to the inner wall of the housing, and the other end of the sealing structure is connected to the circuit board. The second interface passes through the sealing structure and is partially disposed within the second connecting hole. Unlike existing technologies, this vehicle charger seals the gap between the inner wall of the housing and the second interface through the sealing structure, and allows the second interface to pass through the sealing structure, preventing liquid from flowing into the circuit board along the second interface. The waterproof structure maximizes the protection against liquid flowing into the receiving cavity, thereby protecting the circuit board or the vehicle-mounted electrical system.

[0004] However, considering that golf carts are doorless, open-top vehicles connected to the outside world, there are some shortcomings when applying the above-mentioned vehicle charger to golf carts: Since the second interface of the vehicle charger is directly exposed, it is easy for dust, particles, liquids, etc. to enter, which will cause the second interface to malfunction. For example, dust or particles entering the second interface will prevent the plug from being inserted, affecting normal use; or dust entering the second interface will adhere to the outer surface of the terminal, preventing the second interface from achieving effective conduction; or liquid entering the second interface will form water accumulation, causing the second interface to short-circuit or be damaged; or liquid entering the second interface will form water accumulation, causing the terminals inside the second interface to rust and preventing effective conduction.

[0005] In view of the above, the inventors propose the following technical solution. Utility model content:

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a vehicle-mounted dual-interface built-in charger.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a vehicle-mounted dual-interface built-in charger includes a housing, a PCB board that passes through and is fixed inside the housing, a standard USB interface and a Type-C interface mounted on the PCB board, and a rear cover fixed to the rear end of the housing and confining the PCB board within the housing. The front end of the housing is provided with a first window and a second window. The standard USB interface and the Type-C interface pass through and are exposed in the first window and the second window, respectively. The cable connected to the PCB board passes through the hole in the rear cover and is exposed outside the rear cover. The front end of the housing is pivotally connected to a protective cover that can be fitted onto the front end of the housing to cover the first window and the second window, or can be opened relative to the housing to expose the first window and the second window. A torsion spring is also provided between the protective cover and the front end of the housing. The torsion spring provides elastic support for the protective cover after it is opened relative to the housing.

[0008] Furthermore, in the above technical solution, a sealing ring is also provided inside the protective cover. The sealing ring contacts the outer edge of the front end face of the outer shell and surrounds the first window and the second window. A pivot seat is formed at the lower end of the outer shell, and a lock seat is provided at the upper end of the outer shell. The lock seat is provided with a lock opening. A pivot groove is provided at the lower end of the protective cover. The pivot groove is sleeved on the outside of the pivot seat and forms a rotatable connection through a pivot. The torsion spring is sleeved on the periphery of the pivot. The upper end of the protective cover is also provided with a latch that matches the lock opening of the lock seat.

[0009] Furthermore, in the above technical solution, the torsion spring has a first support arm and a second support arm, the end of the first support arm is bent to form a transverse arm; the front end of the outer shell is provided with a connecting block, the connecting block is provided with transversely distributed perforations, the transverse arm is transversely inserted into the perforations of the connecting block, and the second support arm is in contact with the inner wall of the protective cover.

[0010] Furthermore, in the above technical solution, the inner wall of the outer shell is provided with a first limiting guide groove, and the outer edge of the PCB board is embedded in the first limiting guide groove to be positioned inside the outer shell; and the front end of the rear cover is also provided with a second limiting guide groove, and the outer edge of the rear end of the PCB board is embedded in the second limiting guide groove to be positioned with the rear cover; the outer shell and the rear cover are positioned by positioning grooves and positioning posts, and then fixed by ultrasonic melting to form a whole.

[0011] Furthermore, in the above technical solution, the cable is provided with a soft SR head, which is embedded in the hole of the back cover to form a sealed assembly; the protective cover is made of light guiding material, and an LED light is provided on the PCB board. The LED light is exposed on the front end of the housing. When the light emitted by the LED light shines on the protective cover, the light is guided by the protective cover.

[0012] Furthermore, in the above technical solution, the standard USB interface includes an insulating base, a plurality of first terminals arranged in a row within the insulating base, a metal inner shell sleeved outside the insulating base, and an outer shielding shell sleeved outside the metal inner shell. A first mating groove is formed between the metal inner shell and the tongue plate at the front end of the insulating base, and the metal inner shell is stamped with an elastic pressing arm protruding from the outside to the inside within the first mating groove. The outer shielding shell has an outwardly protruding bulge corresponding to the position of the elastic pressing arm, and the inner wall of the bulge has a receiving groove for the elastic pressing arm to move. When the elastic pressing arm is squeezed to protrude outward, the elastic pressing arm at least partially extends into the receiving groove.

[0013] Furthermore, in the above technical solution, the upper surface and the left and right sides of the metal inner shell are provided with the elastic pressure arms, the outer shielding shell covers the upper surface and the left and right sides of the metal inner shell, and the upper surface and the left and right sides of the outer shielding shell are formed with the convex portions.

[0014] Furthermore, in the above technical solution, the two sides of the metal inner shell are stamped with first rivet plates, which are pressed into the first rivet groove on the outside of the insulating seat. The first positioning notch on the upper surface of the metal inner shell is engaged and positioned with the positioning protrusion on the upper end face of the insulating seat, so that the metal inner shell is fixed to the outside of the insulating seat.

[0015] Furthermore, in the above technical solution, the two sides of the metal inner shell have positioning openings at the first rivet, and the side of the outer shield shell is stamped with a second rivet, which is pressed into the positioning opening from the outside to the inside and is fitted and installed with the first rivet; the lower ends of both sides of the outer shield shell are also bent to form flanges, which also cover the lower end face of the metal inner shell, and the rear side of the flange abuts against the step at the lower end of the insulating base.

[0016] Furthermore, in the above technical solution, the lower ends of both sides of the metal inner shell are provided with pins. The lower ends of the pins are formed with spaced first elastic feet and second elastic feet. The outer sides of the first elastic feet and second elastic feet are also formed with outwardly protruding locking protrusions. After the first elastic feet and second elastic feet are inserted into the first pad of the PCB board, they are compressed. The locking protrusions are held and positioned by the inner wall of the first pad. The rear side of the lower end of the insulating base is also integrally formed with a first shim. The first shim protrudes forward, and the front side of the lower end of the insulating base is formed with an inlay gap. The rear side of the lower end of the metal inner shell is inlaid in the inlay gap.

[0017] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: This utility model has both a standard USB interface and a Type-C interface, so as to meet the needs of different charging cable adaptations and is extremely convenient to use. In addition, this utility model adds a protective cover to the front of the shell. When the standard USB interface or Type-C interface is needed, the protective cover is opened relative to the shell to expose the first window and the second window, so that the user can easily insert the charging cable into the standard USB interface or Type-C interface to charge the mobile electronic product. At this time, the torsion spring provides elastic support for the protective cover after it is opened relative to the shell, so that the protective cover is always in the open state relative to the shell, and it will not accidentally close relative to the front of the shell and squeeze or damage the charging cable; when the standard USB interface or Type-C interface is not needed, the protective cover is closed. The casing is fitted onto the front end to cover the first and second windows. This effectively prevents dust, particles, liquids, and other foreign objects from entering the standard USB and Type-C interfaces through the first and second windows, providing excellent protection. It also prevents dust and particles from accumulating inside the standard USB and Type-C interfaces, which could prevent the charging cable from being inserted. Furthermore, it prevents water from directly entering the standard USB and Type-C interfaces due to their exposure, which could lead to short circuits or damage. As a result, it better protects the standard USB and Type-C interfaces and extends the overall lifespan of the charger. Attached image description:

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a perspective view of the present invention from another angle;

[0020] Figure 3 This is an exploded perspective view of the present invention;

[0021] Figure 4 This is a perspective view of the utility model after the back cover has been removed;

[0022] Figure 5 This is a perspective view of the standard USB interface in this utility model;

[0023] Figure 6 This is a perspective view of the standard USB interface in this utility model from another angle;

[0024] Figure 7 This is an exploded perspective view of the standard USB interface in this utility model;

[0025] Figure 8 This is a perspective view of the standard USB interface after the outer shielding shell has been removed. Detailed implementation method:

[0026] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0027] See Figure 1-8 As shown, this is a vehicle-mounted dual-interface built-in charger, which includes a housing 1, a PCB board 2 that passes through and is fixed inside the housing 1, a standard USB interface 3 and a Type-C interface 4 mounted on the PCB board 2, and a rear cover 5 fixed to the rear end of the housing 1 and confining the PCB board 2 within the housing 1. The front end of the housing 1 is provided with a first window 101 and a second window 102. The standard USB interface 3 and the Type-C interface 4 pass through and are exposed in the first window 101 and the second window 102, respectively. The cable 20 connected to the PCB board 2 passes through the hole 51 of the rear cover 5 and is exposed outside the rear cover 5. The cable 20 is connected to a power module. The standard USB interface 3 and the Type-C interface 4 are both used to output power to the outside, so as to supply power to the charging cable inserted into the standard USB interface 3 or the Type-C interface 4, thereby enabling the charging of mobile electronic products connected to the charging cable. Moreover, this utility model has both a standard USB interface 3 and a Type-C interface 4, so as to meet the needs of different charging cables and be extremely convenient to use.

[0028] This invention can be applied to golf carts.

[0029] A protective cover 6 is pivotally connected to the front end of the outer shell 1. This cover can be fitted onto the front end of the outer shell 1 to cover the first window 101 and the second window 102, or can be opened relative to the outer shell 1 to expose the first window 101 and the second window 102. A torsion spring 7 is also provided between the protective cover 6 and the front end of the outer shell 1. The torsion spring 7 provides elastic support to the protective cover 6 when it is opened relative to the outer shell 1. This invention adds a protective cover 6 to the front end of the outer shell 1. When a standard USB interface 3 or a Type-C interface 4 is needed, the protective cover 6 is opened relative to the outer shell 1 to expose the first window 101 and the second window 102, making it convenient for the user to insert the charging cable into the standard USB interface 3 or Type-C interface 4 to charge the mobile electronic product. At this time, the torsion spring 7 provides elastic support to the protective cover 6 when it is opened relative to the outer shell 1, ensuring that the protective cover 6 is always in the open state relative to the outer shell 1, preventing accidental closing relative to the front end of the outer shell 1 and thus avoiding compression or damage to the charging cable. When the standard USB interface 3 or Type-C interface 4 is not needed, the protective cover 6 is closed. The first window 101 and the second window 102 are covered by the outer shell 1. This effectively prevents foreign objects such as dust, particles, and liquids from entering the standard USB interface 3 and the Type-C interface 4 through the first window 101 and the second window 102, thus achieving good protection. It also prevents the charging cable plug from being unable to be inserted due to the accumulation of dust and particles inside the standard USB interface 3 and the Type-C interface 4. Furthermore, it prevents water from directly entering the standard USB interface 3 and the Type-C interface 4 due to their exposure, which could lead to water accumulation, short circuits, or damage to the interfaces. Therefore, it can better protect the standard USB interface 3 and the Type-C interface 4 and improve the overall lifespan of the charger.

[0030] The assembly structure of the outer shell 1 and the protective cover 6 is as follows: the lower end of the outer shell 1 is formed with a pivot seat 11, and the upper end of the outer shell 1 is provided with a lock seat 12, which is provided with a lock opening 121; the lower end of the protective cover 6 is provided with a pivot groove 61, which is sleeved on the outside of the pivot seat 11 and forms a rotatable connection through a pivot 62, thus achieving the purpose of pivoting; the torsion spring 7 is sleeved on the periphery of the pivot 62, and the upper end of the protective cover 6 is also provided with a latch 63 that matches the lock opening 121 of the lock seat 12. When the protective cover 6 is sleeved on the front end of the outer shell 1, the latch 63 of the protective cover 6 is inserted into the lock opening 121 of the lock seat 12 and locked in place, thereby preventing the protective cover 6 from being opened at will and exposing the standard USB interface 3 and the Type-C interface 4.

[0031] The torsion spring 7 has a first support arm 71 and a second support arm 72. The end of the first support arm 71 is bent to form a transverse arm 73. The front end of the outer shell 1 is provided with a connecting block 13. The connecting block 13 is provided with transversely distributed through holes 131. The transverse arm 73 is transversely inserted into the through holes 131 of the connecting block 13, so that the first support arm 71 is positioned with the front end of the outer shell 1. The through holes 131 are strip-shaped holes, so that the transverse arm 73 can move back and forth, so that the first support arm 71 can be better compressed. The second support arm 72 contacts the inner wall of the protective cover 6 to provide elastic support force for the protective cover 6.

[0032] In some embodiments, in order to further improve the waterproof effect, the following design is also made: a sealing ring is also provided inside the protective cover 6. The sealing ring contacts the outer edge of the front end face of the outer shell 1 and surrounds the first window 101 and the second window 102 to achieve a sealing effect. This can effectively prevent liquids such as water from entering the standard USB interface 3 and the Type-C interface 4 through the first window 101 and the second window 102, thereby achieving good waterproof and dustproof effects.

[0033] The inner wall of the outer shell 1 is provided with a first limiting guide groove 14, and the outer edge of the PCB board 2 is embedded in the first limiting guide groove 14 to be positioned inside the outer shell 1; and the front end of the rear cover 5 is also provided with a second limiting guide groove 52, and the outer edge of the rear end of the PCB board 2 is embedded in the second limiting guide groove 52 to be positioned with the rear cover 5, thereby realizing the front and rear positioning of the PCB board 2, ensuring that the PCB board 2 is more stably installed in the outer shell 1, and without the need for screw locking. Finally, the outer shell 1 and the rear cover 5 are positioned by the positioning groove 103 and the positioning post 53, and then fixed by ultrasonic melting to form a whole. Its structure is stable and has excellent waterproof and dustproof effects.

[0034] The cable 20 is provided with a flexible SR connector 201, which is embedded in the hole 51 of the rear cover 5 to form a sealed assembly, providing excellent waterproof and dustproof effects, and making it easy for the cable 20 to bend without or less likely to break. The flexible SR connector can be made of soft materials such as silicone.

[0035] In some embodiments, the protective cover 6 is made of a light-guiding material, and an LED light is provided on the PCB board 2. The LED light is exposed on the front end of the housing 1. When the light emitted by the LED light shines on the protective cover 6, the light is guided by the protective cover 6, which facilitates use in dark environments. It allows users to directly see the illuminated protective cover 6, and thus quickly open the protective cover 6 to expose the standard USB interface 3 and the Type-C interface 4, making it easy to insert a charging cable to charge electronic products, making it more convenient to use.

[0036] The standard USB interface 3 includes an insulating base 31, a plurality of first terminals 32 arranged in a row within the insulating base 31, a metal inner shell 33 sleeved outside the insulating base 31, and an outer shielding shell 34 sleeved outside the metal inner shell 33. A first mating groove 30 is formed between the metal inner shell 33 and the tongue plate 311 at the front end of the insulating base 31, and the metal inner shell 33 is stamped with an elastic pressing arm 331 protruding from the outside to the inside within the first mating groove 30. The outer shielding shell 34 is formed with an outwardly protruding convex portion 341 corresponding to the position of the elastic pressing arm 331. The inner wall of the convex portion 341 is formed with a receiving groove 342 for the elastic pressing arm 331 to move. When the elastic pressing arm 331 is squeezed to protrude outward, the elastic pressing arm 331 at least partially extends into the receiving groove 342, that is, there is enough space for the elastic pressing arm 331 to move, ensuring the insertion and removal force of the standard USB interface 3. Since the outer shielding shell 34 covers the gaps or cracks formed by the stamping and forming elastic pressure arm 331 in the metal inner shell 33, the shielding effect of the entire standard USB interface 3 is improved.

[0037] The upper surface and the left and right sides of the metal inner shell 33 are provided with the elastic pressure arms 331. The outer shielding shell 34 covers the upper surface and the left and right sides of the metal inner shell 33, and the upper surface and the left and right sides of the outer shielding shell 34 are formed with the protrusions 341. That is, the outer shielding shell 34 achieves the purpose of wrapping the upper surface and the left and right sides of the metal inner shell 33, and its shielding effect is better.

[0038] The metal inner shell 33 has first rivet plates 332 stamped on both sides. The first rivet plates 332 are pressed into the first rivet groove 312 on the outside of the insulating seat 31. The first positioning notch 333 on the upper surface of the metal inner shell 33 is engaged and positioned with the positioning protrusion 313 on the upper end surface of the insulating seat 31, so that the metal inner shell 33 is fixed to the outside of the insulating seat 31.

[0039] The inner metal shell 33 has positioning openings 334 formed on both sides at the first rivet 332. The outer shielding shell 34 has a second rivet 343 formed by stamping on its side. The second rivet 343 is pressed into the positioning opening 334 from the outside to the inside and is fitted with the first rivet 332. This not only ensures that the outer shielding shell 34 is stably fixed to the outside of the inner metal shell 33, but also provides support to the first rivet 332 because the second rivet 343 is fitted with the first rivet 332, ensuring that the first rivet 332 is stably positioned in the first rivet groove 312, thus improving the stability of the assembly structure. The lower ends of both sides of the outer shielding shell 34 are also bent to form flanges 345. The flanges 345 cover the lower end face of the inner metal shell 33, and the rear side of the flanges 345 abuts against the step 314 at the lower end of the insulating seat 31, which further ensures that the outer shielding shell 34 is more stably fixed to the outside of the inner metal shell 33.

[0040] The lower ends of both sides of the metal inner shell 33 are provided with pins 35. The lower ends of the pins 35 are formed with spaced first elastic feet 351 and second elastic feet 352. The outer sides of the first elastic feet 351 and second elastic feet 352 are also formed with outwardly protruding locking protrusions 350. After the first elastic feet 351 and second elastic feet 352 are inserted into the first pad of the PCB board 2, they are compressed. The locking protrusions 350 are locked and positioned with the inner wall of the first pad, which improves the stability of the assembly structure. The lower rear side of the insulating base 31 is also integrally formed with a first shim 315. The first shim 315 protrudes forward, and the lower front side of the insulating base 31 has an inlay gap. The lower rear side of the metal inner shell 33 is inlaid in the inlay gap, which improves the stability of the assembly structure.

[0041] In summary, this utility model features both a standard USB interface 3 and a Type-C interface 4, enabling it to be compatible with various charging cables and providing great convenience. Furthermore, a protective cover 6 is added to the front of the outer casing 1. When the standard USB interface 3 or Type-C interface 4 is needed, the protective cover 6 is opened relative to the outer casing 1 to expose the first window 101 and the second window 102, facilitating the user to insert the charging cable into the standard USB interface 3 or Type-C interface 4 for charging mobile electronic devices. At this time, the torsion spring 7 provides elastic support to the protective cover 6 after it is opened relative to the outer casing 1, ensuring that the protective cover 6 remains open relative to the outer casing 1 and prevents accidental closing of the front of the outer casing 1, which could squeeze or damage the charging cable. When the standard USB interface 3 or Type-C interface 4 is not needed, the protective cover 6 is closed. The cover 6 is fitted onto the front end of the outer casing 1 to cover the first window 101 and the second window 102. This effectively prevents foreign objects such as dust, particles, and liquids from entering the standard USB interface 3 and the Type-C interface 4 through the first window 101 and the second window 102, achieving a good protective effect. It also prevents the accumulation of dust and particles inside the standard USB interface 3 and the Type-C interface 4, which could cause the charging cable plug to be unable to be inserted. Furthermore, it prevents water from directly entering the standard USB interface 3 and the Type-C interface 4 due to their exposure, which could lead to water accumulation, short circuits, or damage to the interfaces. As a result, it can better protect the standard USB interface 3 and the Type-C interface 4 and improve the overall lifespan of the charger.

[0042] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A vehicle-mounted dual-interface built-in charger, comprising a housing (1), a PCB board (2) inserted and fixed inside the housing (1), a standard USB interface (3) and a Type-C interface (4) mounted on the PCB board (2), and a rear cover (5) fixed to the rear end of the housing (1) and confining the PCB board (2) within the housing (1), wherein the front end of the housing (1) is provided with a first window (101) and a second window (102), the standard USB interface (3) and the Type-C interface (4) are respectively inserted and exposed in the first window (101) and the second window (102), and the cable (20) connected to the PCB board (2) passes through the hole (51) of the rear cover (5) to be exposed outside the rear cover (5), characterized in that: The front end of the outer shell (1) is pivotally connected to a protective cover (6) which can be fitted onto the front end of the outer shell (1) to cover the first window (101) and the second window (102) or can be opened relative to the outer shell (1) to expose the first window (101) and the second window (102). A torsion spring (7) is also provided between the protective cover (6) and the front end of the outer shell (1). The torsion spring (7) provides elastic support for the protective cover (6) after it is opened relative to the outer shell (1).

2. The on-board dual-interface built-in charger according to claim 1, characterized in that: The protective cover (6) is also provided with a sealing ring, which contacts the outer edge of the front end face of the outer shell (1) and surrounds the first window (101) and the second window (102); the lower end of the outer shell (1) is formed with a pivot seat (11), the upper end of the outer shell (1) is provided with a lock seat (12), and the lock seat (12) is provided with a lock opening (121); the lower end of the protective cover (6) is provided with a pivot groove (61), the pivot groove (61) is sleeved on the outside of the pivot seat (11) and forms a rotatable connection through a pivot (62), the torsion spring (7) is sleeved on the periphery of the pivot (62), and the upper end of the protective cover (6) is also provided with a buckle (63) that matches the lock opening (121) of the lock seat (12).

3. The on-board dual-interface built-in charger according to claim 1, characterized in that: The torsion spring (7) has a first support arm (71) and a second support arm (72). The end of the first support arm (71) is bent to form a transverse arm (73). The front end of the outer shell (1) is provided with a connecting block (13). The connecting block (13) is provided with transversely distributed perforations (131). The transverse arm (73) is transversely inserted into the perforations (131) of the connecting block (13). The second support arm (72) is in contact with the inner wall of the protective cover (6).

4. The on-board dual-interface built-in charger according to claim 1, characterized in that: The inner wall of the outer shell (1) is provided with a first limiting guide groove (14), and the outer edge of the PCB board (2) is embedded in the first limiting guide groove (14) to be positioned inside the outer shell (1); and the front end of the rear cover (5) is also provided with a second limiting guide groove (52), and the outer edge of the rear end of the PCB board (2) is embedded in the second limiting guide groove (52) to be positioned with the rear cover (5); the outer shell (1) and the rear cover (5) are positioned by a positioning groove (103) and a positioning post (53), and then fixed by ultrasonic melting to form a whole.

5. The on-board dual-interface built-in charger according to claim 1, characterized in that: The cable (20) is provided with a soft SR head (201), which is embedded with the hole (51) of the back cover (5) to form a sealed assembly; the protective cover (6) is made of light guiding material, and the PCB board (2) is provided with an LED light, which is exposed on the front end of the outer shell (1). When the light emitted by the LED light shines on the protective cover (6), the light is guided by the protective cover (6).

6. The vehicle-mounted dual-interface built-in charger according to any one of claims 1-5, characterized in that: The standard USB interface (3) includes an insulating base (31), a plurality of first terminals (32) arranged in a row inside the insulating base (31), a metal inner shell (33) sleeved outside the insulating base (31), and an outer shielding shell (34) sleeved outside the metal inner shell (33). A first mating groove (30) is formed between the metal inner shell (33) and the tongue plate (311) at the front end of the insulating base (31), and the metal inner shell (33) is stamped with a first mating groove (30) formed by the outer tongue plate (311) of the insulating base (31). An elastic pressing arm (331) protrudes inward into the first docking groove (30); the outer shield shell (34) is formed with an outwardly raised bulge (341) at the position corresponding to the elastic pressing arm (331), and the inner wall of the bulge (341) is formed with a receiving groove (342) for the elastic pressing arm (331) to move. When the elastic pressing arm (331) is squeezed to protrude outward, the elastic pressing arm (331) at least partially extends into the receiving groove (342).

7. The on-board dual-interface built-in charger according to claim 6, characterized in that: The upper surface and the left and right sides of the metal inner shell (33) are provided with the elastic pressure arms (331), and the outer shielding shell (34) covers the upper surface and the left and right sides of the metal inner shell (33), and the upper surface and the left and right sides of the outer shielding shell (34) are formed with the protrusions (341).

8. The on-board dual-interface built-in charger according to claim 6, characterized in that: The metal inner shell (33) has a first rivet plate (332) stamped on both sides. The first rivet plate (332) is pressed into the first rivet groove (312) on the outside of the insulating seat (31). The first positioning notch (333) on the upper surface of the metal inner shell (33) is engaged and positioned with the positioning protrusion (313) on the upper end face of the insulating seat (31), so that the metal inner shell (33) is fixed to the outside of the insulating seat (31).

9. The on-board dual-interface built-in charger according to claim 8, characterized in that: The metal inner shell (33) has positioning openings (334) formed on both sides at the first rivet (332). The outer shield shell (34) has a second rivet (343) formed by stamping on its side. The second rivet (343) is pressed into the positioning opening (334) from the outside to the inside and is fitted with the first rivet (332). The lower ends of both sides of the outer shield shell (34) are also bent to form flanges (345). The flanges (345) also cover the lower end face of the metal inner shell (33), and the rear side of the flanges (345) abuts against the step (314) at the lower end of the insulating seat (31).

10. The vehicle-mounted dual-interface built-in charger according to any one of claims 7-9, characterized in that: The lower ends of both sides of the metal inner shell (33) are provided with pins (35). The lower ends of the pins (35) are formed with a first elastic foot (351) and a second elastic foot (352) spaced apart. The outer sides of the first elastic foot (351) and the second elastic foot (352) are also formed with outwardly protruding locking protrusions (350). After the first elastic foot (351) and the second elastic foot (352) are inserted into the first pad of the PCB board (2), they are compressed. The locking protrusions (350) are locked and positioned with the inner wall of the first pad. The rear side of the lower end of the insulating seat (31) is also integrally formed with a first shim (315). The first shim (315) also protrudes forward. The front side of the lower end of the insulating seat (31) is formed with an inlay gap. The rear side of the lower end of the metal inner shell (33) is inlaid in the inlay gap.

Images