Vehicle-mounted expansion charger

Abstract

The utility model discloses a vehicle-mounted expansion charger, which comprises a charger body, the charger body is a rectangular shell structure with four corners provided with round corners, a telescopic charging plug device and a PCB (printed circuit board) are respectively arranged in the charger body, and a voltage early warning display screen and a plurality of function keys are respectively embedded on a panel of the charger body. The bottom of the charger body is movably provided with a safety device, the front side of the charger body is provided with a plurality of cigarette lighting ports and limiting grooves for movement of a charging plug at intervals, the plurality of cigarette lighting ports are matched with a cigarette lighter, an automobile data recorder and an extended vehicle-mounted charging device respectively, and the two sides, close to a panel, of the charger body are provided with USB interfaces and an external power source corresponding to a PCB respectively. The cigarette lighting ports, the voltage early warning display screen, the telescopic charging plug device and the safety device are electrically connected with the PCB. The utility model has the advantages of simple structure, abundant functions, small volume, convenience in storage, wide application range, low cost, long service life, safety, reliability and strong practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted charging equipment, in particular to a vehicle-mounted extended charger. Background Art

[0002] With the improvement of people's living standards, electronic products are increasingly applied to people's daily lives. The emergence of various electronic products has greatly facilitated people's work and life. Especially the popularization of cars and the convenience of road networks have greatly shortened the distance in time and space. People often need to operate various mobile devices during trips, such as cigarette lighters and chargers. More and more people use the cigarette lighter to light cigarettes in the car, and sometimes use the cigarette lighter interface in the car to supply power to various external electronic products. Although the cigarette lighter brings convenience, its application scope has limitations.

[0003] A vehicle-mounted charger is a device used to provide power and charging for electronic products in a vehicle. Existing vehicle-mounted chargers are highly homogenized, with few and single interfaces, unable to supply power to multiple external devices simultaneously, and having a single function. They cannot light cigarettes and do not have a function of retracting and storing data cables. When in use, many cables look messy, greatly affecting the operation of the driver and the safety of users. It is also very inconvenient for rear passengers to use. In addition, the existing vehicle-mounted chargers have a complex structure, a large volume, some have design defects, poor ability to withstand large currents, and few protection measures, making them easily burned out, greatly affecting their service life, with a high use cost, inconvenient for storage and use, and unable to meet the usage requirements of users.

[0004] Therefore, it is necessary to develop a vehicle-mounted extended charger with a simple structure, rich functions, small volume, convenient storage, wide application range, low cost, and long service life, and effectively combine the functions of the cigarette lighter and the charger to make it more convenient, practical, safe and reliable to meet the usage requirements of users. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a vehicle-mounted extended charger with a simple structure, convenient use, small volume, rich functions, wide application range, low cost, long service life, and safe and reliable.

[0006] To solve the above technical problem, the technical solution of the utility model is as follows:

[0007] A vehicle-mounted extended charger, comprising: a charger body, the charger body being a rectangular shell structure with rounded corners at four corners, an extendable charging plug device and a PCB board being respectively arranged inside the charger body, a voltage warning display screen and a plurality of function buttons being respectively embedded on the panel of the charger body, a safety device being movably arranged at the bottom of the charger body, the extendable charging plug device comprising a wire winding mechanism and a data cable, there being a plurality of the data cables, the plurality of data cables being respectively arranged corresponding to the wire winding mechanism, a charging plug being arranged at the free end of the data cable, the charging plug extending out of the charger body, a plurality of cigarette lighters and a limiting groove for the movement of the charging plug being respectively arranged at intervals on the front side of the charger body, the plurality of cigarette lighters being respectively matched with a cigarette lighter, a driving recorder and an extended vehicle-mounted charging device, a USB interface and an external power supply being respectively arranged corresponding to the PCB board on both sides of the charger body adjacent to the panel, and the plurality of cigarette lighters, the voltage warning display screen, the extendable charging plug device and the safety device being respectively electrically connected to the PCB board.

[0008] In the above structure, the charger body comprises an upper cover and a bottom shell, the upper cover being buckled on the upper part of the bottom shell, an installation cavity and a limiting structure for installing the extendable charging plug device and the PCB board being respectively arranged on the upper cover, a plurality of support ribs and fixing columns being arranged corresponding to the PCB board inside the bottom shell, and the bottom shell and the upper cover being screwed and connected by connecting columns arranged correspondingly inside.

[0009] In the above structure, the safety device comprises a bracket and a fuse tube movably arranged on the bracket, the fuse tube being a plug-in fuse tube, the plug-in fuse tube comprising a fuse tube base integrally arranged, and the fuse tube base being matched with a slot arranged on the bottom shell.

[0010] In the above structure, the PCB board comprises a charging circuit, an over-current and over-voltage protection circuit and a short-circuit protection circuit arranged inside, the voltage warning display screen being arranged on the front side of the PCB board, and a power switch being arranged adjacent to the bracket on the rear side of the PCB board.

[0011] In the above structure, there are a plurality of the wire winding mechanisms, the plurality of wire winding mechanisms being coaxially arranged, each of the plurality of wire winding mechanisms comprising a wire winding disk matched with the corresponding data cable, the fixed end of the data cable being movably connected to the wire winding disk, and the data cables being respectively electrically connected to the charging PCB board.

[0012] In the above structure, a groove is embedded at the top of the bottom shell, the groove being arranged adjacent to the cigarette lighter, the limiting groove penetrating through the bottom of the groove, and a switch button being movably arranged corresponding to the power switch at the bottom of the bottom shell.

[0013] In the above structure, there are multiple limit grooves, each of which corresponds to the limit structure provided inside the bottom shell, and each of which matches the corresponding charging plug.

[0014] In the above structure, the charging plug includes any one or more of a TYPE-C plug and a Lightning plug.

[0015] In the above structure, the USB interface is any one or more of TYPE-C and Lightning interfaces.

[0016] The beneficial effects of the utility model are:

[0017] The utility model sets dual cigarette lighter ports and two USB charging interfaces on the charger body. The cigarette lighter ports can be plugged in with a cigarette lighter, a driving recorder or an extended vehicle charging device, which is easy to use and greatly expands the scope of use of the charger. There are multiple charging plugs with retractable pull-cord functions on the charger body, which can more conveniently meet the charging needs of multiple users at the same time. The cigarette lighter ports allow smokers to light cigarettes without open flames, ensuring driving safety. The utility model has a charging circuit, an overcurrent and overvoltage protection circuit, a short-circuit protection circuit and a fuse inside the PCB board, which can provide multiple protections and greatly improve the service life of the charger. By setting a voltage warning display screen on the panel of the charger body, the voltage situation can be understood at any time during charging. The utility model has a simple structure, rich functions, small size, convenient storage, a wide range of uses, low cost, long life, safety and reliability, and strong practicality. Brief Description of the Figures

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the utility model vehicle-mounted expansion charger;

[0019] Figure 2 is a cross-sectional view of an embodiment of the vehicle-mounted expansion charger of the utility model;

[0020] Figure 3 This is a structural exploded view of an embodiment of the vehicle-mounted expansion charger of the utility model.

[0021] In the figure, 1- telescopic charging plug device, 2- PCB board, 3- voltage warning display screen, 4- function button, 5- insurance device, 6- cigarette lighter port, 7- USB interface, 8- external power supply, 9- top cover, 10- bottom shell, 11- power switch. Specific implementation method

[0022] The following further describes the specific embodiments of the present utility model in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation on the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] As Figures 1-3 shown, a vehicle-mounted extended charger includes: a charger body, the charger body is a rectangular shell structure with rounded corners at four corners. Inside the charger body, there are respectively provided a telescopic charging plug device 1 and a PCB board 2. On the panel of the charger body, there are respectively embedded a voltage warning display screen 3 and a plurality of function keys 4. At the bottom of the charger body, there is movably provided a fuse device 5. The telescopic charging plug device 1 includes a wire winding mechanism and data lines. There are a plurality of data lines, and the plurality of data lines are respectively arranged corresponding to the wire winding mechanism. The free end of the data line is provided with a charging plug, and the charging plug extends out of the charger body. On the front side of the charger body, there are respectively provided a plurality of cigarette lighters 6 and a limiting groove for the movement of the charging plug at intervals. The plurality of cigarette lighters 6 are respectively matched with a cigarette lighter, a driving recorder, and an extended vehicle-mounted charging device. On both sides of the charger body adjacent to the panel, there are respectively provided a USB interface 7 and an external power supply 8 corresponding to the PCB board 2. The plurality of cigarette lighters 6, the voltage warning display screen 3, the telescopic charging plug device 1, and the fuse device 5 are respectively electrically connected to the PCB board 2.

[0024] Specifically, in this embodiment, there are two cigarette lighters 6, and the two cigarette lighters 6 are arranged side by side. The two cigarette lighters 6 are respectively electrically connected to the PCB board. There are two function keys 4, and the two function keys 4 are arranged corresponding to the two cigarette lighters 6.

[0025] In a preferred embodiment of the present utility model, the charger body includes an upper cover 9 and a bottom shell 10. The upper cover 9 is buckled on the upper part of the bottom shell 10. On the upper cover 9, there are respectively provided an installation cavity and a limiting structure for installing the telescopic charging plug device 1 and the PCB board 2. Inside the bottom shell 10, there are a plurality of support ribs and fixing columns corresponding to the PCB board 2. The bottom shell 10 and the upper cover 9 are screwed together through connecting columns arranged correspondingly inside.

[0026] Specifically, in this embodiment, there are respectively provided a card slot and a limiting structure matching the telescopic charging plug device 1 inside the upper cover 9 and the bottom shell 10. The telescopic charging plug device 1 is fixedly connected to the upper cover 9 or the bottom shell 10 by clamping. The front side of the upper cover 9 is the panel, and there are key holes on the panel that match the function keys.

[0027] In a preferred embodiment of the present utility model, the fuse device 5 includes a bracket and a fuse tube movably arranged on the bracket. The fuse tube is a blade fuse tube, and the blade fuse tube includes a fuse tube seat integrally arranged. The fuse tube seat is matched with a slot provided on the bottom shell 10.

[0028] Specifically, in this embodiment, the bottom case 10 is provided with finger-shaped latches corresponding to the slots, the blade fuse tube is movably connected to the bracket through the slots, and the blade fuse tube is electrically connected to the circuit on the PCB board through the bracket.

[0029] In a preferred embodiment of the present utility model, the PCB board 2 includes a charging circuit, an overcurrent and overvoltage protection circuit, and a short-circuit protection circuit provided inside. The voltage warning display screen 3 is arranged on the front side of the PCB board 2, and a power switch 11 is arranged adjacent to the bracket on the rear side of the PCB board 2.

[0030] Specifically, in this embodiment, the power switch is arranged on the rear side of the PCB board 2 and corresponds to the bottom case 10

[0031] In a preferred embodiment of the present utility model, there are multiple winding mechanisms. The multiple winding mechanisms are coaxially arranged. Each of the multiple winding mechanisms includes a winding disk matching the corresponding data cable. The fixed end of the data cable is movably connected to the winding disk, and the data cables are respectively electrically connected to the charging PCB board 2.

[0032] Specifically, in this embodiment, there are two winding mechanisms. The two winding mechanisms are coaxially arranged. The two winding mechanisms include an internal transfer board, a thimble electrode board, a spring, a limiting board, a U-shaped snap spring, and a winding disk. A receiving cavity for installing the transfer board, the thimble electrode board, the spring, the limiting board, and the U-shaped snap spring is provided in the middle of the winding disk. The winding mechanism is a prior art and will not be elaborated here.

[0033] In a preferred embodiment of the present utility model, a groove is embedded in the top of the bottom case 10. The groove is arranged adjacent to the cigarette lighter 6, a limiting groove penetrates through the bottom of the groove, and a switch assembly groove is movably arranged corresponding to the power switch at the bottom of the bottom case 10.

[0034] Specifically, in this embodiment, the power switch 11 is a master control switch.

[0035] In a preferred embodiment of the present utility model, there are multiple limiting grooves. The multiple limiting grooves respectively correspond to the limiting structures arranged inside the upper cover 9, and the multiple limiting grooves respectively match the corresponding charging plugs.

[0036] In a preferred embodiment of the present utility model, the charging plug includes any one or more of a TYPE-C plug and a Lightning plug, and the USB interface is any one or more of a TYPE-C interface and a Lightning interface.

[0037] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0038] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0039] The above has described in detail the embodiments of the present utility model in conjunction with the drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions and variations made to these embodiments still fall within the protection scope of the present utility model.

Claims

1. A vehicle expansion charger, comprising: The charger body is characterized in that the charger body is a rectangular shell structure with rounded corners at four corners, a retractable charging plug device and a PCB board are respectively arranged inside the charger body, a voltage warning display screen and a plurality of function keys are respectively embedded on the panel of the charger body, a safety device is movably arranged at the bottom of the charger body, the retractable charging plug device includes a winding mechanism and a data cable, there are multiple data cables, and the multiple data cables are respectively arranged corresponding to the winding mechanism, a charging plug is arranged at the free end of the data cable, and the charging plug is extended from the charger body, a plurality of cigarette lighter ports and movable limiting grooves of the charging plug are respectively arranged at intervals on the front side of the charger body, and the multiple cigarette lighter ports are respectively matched with a cigarette lighter, a driving recorder, and an extended vehicle-mounted charging device, a USB interface and an external power supply are respectively arranged on both sides of the charger body adjacent to the panel corresponding to the PCB board, and the multiple cigarette lighter ports, the voltage warning display screen, the retractable charging plug device, and the safety device are respectively electrically connected to the PCB board.

2. The vehicle-mounted expansion charger according to claim 1, characterized in that: The charger body includes an upper cover and a bottom shell, the upper cover is buckled on the upper part of the bottom shell, the inner side of the upper cover is respectively provided with an installation cavity and a limiting structure for installing the telescopic charging plug device and the PCB board, the interior of the bottom shell is provided with a plurality of supporting ribs and fixing columns corresponding to the PCB board, and the bottom shell is connected to the upper cover by correspondingly arranged connecting column screws inside.

3. The vehicle-mounted expansion charger according to claim 2, characterized in that: The safety device comprises a bracket and a fuse movably arranged on the bracket, wherein the fuse is a plug-in fuse, and the plug-in fuse comprises an integrally arranged fuse seat, and the fuse seat matches a slot arranged on the bottom shell.

4. The vehicle-mounted expansion charger according to claim 3, characterized in that: The PCB board includes a charging circuit, an overcurrent and overvoltage protection circuit, and a short circuit protection circuit arranged inside. The voltage warning display screen is arranged on the front side of the PCB board. A power switch is arranged on the rear side of the PCB board adjacent to the bracket.

5. The vehicle-mounted expansion charger according to claim 4, characterized in that: There are multiple winding mechanisms, which are coaxially arranged. Each of the multiple winding mechanisms includes a winding disk that matches the corresponding data cable. The fixed end of the data cable is movably connected to the winding disk, and the data cables are electrically connected to the PCB boards respectively.

6. The vehicle-mounted expansion charger according to claim 5, characterized in that: The top of the bottom shell is embedded with a groove, the groove is arranged adjacent to the cigarette lighter port, the limiting groove is arranged through the bottom of the groove, and the bottom of the bottom shell is provided with a switch button corresponding to the power switch movement.

7. The vehicle-mounted expansion charger according to claim 6, characterized in that: There are multiple limiting grooves, each of which corresponds to a limiting structure provided inside the bottom shell, and each of which matches the corresponding charging plug.

8. The vehicle-mounted expansion charger according to claim 1, characterized in that: The charging plug includes any one or more of a TYPE-C plug and a Lightning plug.

9. The vehicle-mounted expansion charger according to claim 1, characterized in that: The USB interface is any one or more of TYPE-C and Lightning interfaces.

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