Charging device with safety protection and prompt functions

Abstract

The utility model discloses a charging device with safety protection and prompting functions, and particularly relates to the charging field, the charging device comprises a charging interface housing, a PCB is fixedly installed in the charging interface housing, the PCB is connected with a touch electrode arranged on the outer side wall of the charging interface housing through a wire, and the touch electrode is connected with a power supply through a wire. A light guide plastic pouring piece is fixedly arranged on one side of the PCB, and a light guide window is fixedly arranged on one side of the touch electrode. According to the utility model, the RGB light-emitting diodes can be turned on through the touch electrodes, so that the RGB light-emitting diodes emit light and illuminate, and people can conveniently connect the charging interface with the mobile phone interface in a butt joint manner when the light is dark; the charging device can monitor voltage-to-ground rise, interface temperature, wire breakage, wire temperature and wire skin damage of the charging device, prompts in time if the temperature, voltage-to-ground rise and the like are close to dangerous values, powers off the charging device in time when the dangerous values are reached, and can prevent safety accidents such as electric shock and fire.

Description

Technical Field

[0001] The utility model relates to the technical field of charging devices, in particular to a charging device with safety protection and prompting functions. Background Art

[0002] In today's society, with the popularity of mobile phones and the continuous advancement of technology, small electronic products such as mobile phones are widely used in people's daily lives. Fast charging is an important way to solve the problem of mobile phone battery life. The existing fast charging technology is that the power adapter is connected to the communication protocol of the mobile phone through the DATA+ and DATA- lines in the USB cable, which can change the output voltage to achieve the purpose of high voltage and high current transmission and fast charging.

[0003] However, there are also some problems when using a charger to charge a mobile phone. For example, we often see in the news that mobile phones are charged in bed, resulting in electric shock, fire and other accidents, charger grounding failure or excessive leakage current, touching the charging port, mobile phone and other metal parts of the equipment causing electric shock. Due to the emergence of high-power fast charging, once the port or line output is slightly short-circuited, it is not enough to trigger the overload protection action of the charger, causing a fire accident. Moreover, if the light is dim during use, it is difficult to find the mobile phone port location, and the light needs to be turned on to plug in the mobile phone for charging, which is inconvenient for people to use. Utility Model Content

[0004] The purpose of the utility model is to provide a charging device with safety protection and prompting functions to solve some potential safety risks in the charging process.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a charging device with safety protection and prompting functions, comprising a charging interface shell, a PCB board is fixedly installed inside the charging interface shell, the PCB board is connected to touch electrodes arranged on the outer wall of the charging interface shell through wires, a display window is arranged between two touch electrodes, a light-guiding plastic casting is fixedly arranged on one side of the PCB board, a light-guiding window is fixedly arranged on one side of the light-guiding plastic casting, a charging cable is arranged at one end of the charging interface shell, and a charging interface is arranged at one end of the charging interface shell.

[0006] In a preferred embodiment, RGB lights are arranged on the touch electrodes, the touch electrodes are made of conductive rubber, and a leakage overvoltage and current detection circuit is formed between the touch electrodes and the human body in contact.

[0007] In a preferred embodiment, a temperature sensor and an RGB light emitting diode are embedded and installed inside the light-guiding plastic casting.

[0008] In a preferred embodiment, a thermistor is provided inside the charging cable, and a semiconductor protection switch is provided at one end of the charging cable, the thermistor is connected to the semiconductor protection switch, and the PCB board controls the semiconductor protection switch embedded in the interface on one side of the charger through the thermistor provided inside the charging cable.

[0009] In a preferred embodiment, an integrated sensor is provided at the PCB board, and the integrated sensor is connected to the mobile phone via a wireless communication protocol or a DATA+DATA-line protocol.

[0010] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0011] 1. The utility model is provided with structures such as a light-guiding plastic casting, a light-guiding window, a touch electrode and an RGB light-emitting diode. The RGB light-emitting diode can be turned on by touching the electrode, so that the RGB light-emitting diode emits light, and the light emitted by the RGB light-emitting diode is scattered through the light-guiding window, which is convenient for people to connect the charging interface with the mobile phone interface when the light is dim;

[0012] 2. The utility model is capable of monitoring the interface and wires of the charging device by arranging a temperature sensor inside the charging interface shell and a thermistor wire inside the conductive wire. At the same time, the thermistor wire can monitor the degree of cable skin damage through the change in capacitance between the thermistor wire and other wires. When the temperature is too high or the skin is severely damaged, the charging device can be powered off in time to prevent safety accidents such as electric shock and fire.

[0013] 3. The utility model detects the voltage difference between the charger and the human body when touched by setting a touch electrode and a display window on the charging interface, and displays the danger level in RGB color on the light guide window. When the safety voltage is exceeded, the output is cut off to prevent electric shock accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0016] Figure 2 It is a schematic diagram of the structure inside the shell of the charging interface of the utility model;

[0017] Figure 3 It is a schematic diagram of the overall structure of Example 2 of the utility model.

[0018] In the figure: 1. Charging interface shell; 2. PCB board; 3. Touch electrode; 4. Light-guiding plastic casting; 5. Light-guiding window; 6. Charging cable; 7. Charging interface; 8. Display window; 9. Semiconductor protection switch embedded in the interface. DETAILED DESCRIPTION

[0019] Embodiment 1:

[0020] See also Figure 1-Figure 2 The utility model provides a charging device with safety protection and prompting functions, including a charging interface shell 1, a PCB board 2 is fixedly installed inside the charging interface shell 1, the PCB board 2 is connected to a touch electrode 3 arranged on the outer wall of the charging interface shell 1 through a wire, a display window 8 is arranged between two touch electrodes 3, a light guide plastic casting 4 is fixedly arranged on one side of the PCB board 2, a light guide window 5 is fixedly arranged on one side of the light guide plastic casting 4, a charging line 6 is arranged at one end of the charging interface shell 1, and a charging interface 7 is arranged at one end of the charging interface shell 1.

[0021] In a preferred embodiment, RGB lights are provided on the touch electrodes 3, the touch electrodes 3 are made of conductive rubber, and a leakage overvoltage and current detection circuit is formed between the touch electrodes 3 and the human body in contact.

[0022] In a preferred embodiment, a temperature sensor and an RGB light emitting diode are embedded and installed inside the light-guiding plastic casting 4 to project light to the interface.

[0023] In a preferred embodiment, a thermistor is provided inside the charging cable 6, and a semiconductor protection switch is provided at one end of the charging cable 6, the thermistor is connected to the semiconductor protection switch, and the PCB board 2 controls the semiconductor protection switch 9 embedded in the interface on one side of the charger through the thermistor provided inside the charging cable 6.

[0024] The working principle of this utility model:

[0025] By providing structures such as a light-guiding plastic casting 4, a light-guiding window 5, a touch electrode 3 and an RGB light-emitting diode, the RGB light-emitting diode can be turned on by touching the electrode 3, so that the RGB light-emitting diode emits light, which is convenient for people to connect the charging interface with the mobile phone interface when the light is dim; by providing a temperature sensor inside the charging interface shell 1 and providing a thermistor wire inside the conductive wire, the charging device can be monitored, and if the temperature is high or the voltage exceeds the safe voltage, the charging device can be powered off in time, which can prevent safety accidents such as electric shock and fire. When people put their hands on the touch electrode 3, a leakage overvoltage and current detection circuit is formed between the touch electrode 3 and the human body, which can realize the safety voltage detection function and warn through the RGB light.

[0026] Embodiment 2:

[0027] See also Figure 2-Figure 3 In a preferred embodiment, an integrated sensor is provided at the PCB board 2, and the integrated sensor is connected to the mobile phone APP signal through a wireless communication protocol. An integrated sensor is provided inside the PCB board 2 to monitor the temperature inside the charging line and the interface in real time, and the monitored data is transmitted to the mobile phone APP in real time through the wireless communication module. The mobile phone APP is used to monitor the temperature of the charging line and the interface, the ground voltage, and the line integrity data, and the PCB board is controlled through the mobile phone APP to realize the power off of the mobile phone charger.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A charging device with safety protection and reminder functions, comprising a charging interface housing (1), characterized in that: A PCB board (2) is fixedly installed inside the charging interface shell (1); two touch electrodes (3) arranged on the outer wall of the charging interface shell (1) are connected on the PCB board (2) via a wire; a display window (8) is arranged between the two touch electrodes (3); a light-guiding plastic casting (4) is fixedly arranged on one side of the PCB board (2); a light-guiding window (5) is fixedly arranged on one side of the light-guiding plastic casting (4); a charging cable (6) is arranged at one end of the charging interface shell (1); and a charging interface (7) is arranged at one end of the charging interface shell (1).

2. A charging device with safety protection and reminder functions according to claim 1, characterized in that: The touch electrode (3) is provided with an RGB light, the touch electrode (3) is made of conductive rubber, and a leakage overvoltage and current detection circuit is formed between the touch electrode (3) and the human body in contact.

3. A charging device with safety protection and reminder functions according to claim 1, characterized in that: A temperature sensor and an RGB light emitting diode are embedded and installed inside the light-guiding plastic casting (4).

4. A charging device with safety protection and reminder functions according to claim 1, characterized in that: The charging cable (6) is provided with a thermistor wire inside, and a semiconductor protection switch is provided at one end of the charging cable (6), the thermistor wire is connected to the semiconductor protection switch, and the PCB board (2) controls the semiconductor protection switch (9) embedded in the interface on one side of the charger through the thermistor wire provided inside the charging cable (6).

5. The charging device with safety protection and reminder functions according to claim 1, characterized in that: An integrated sensor is arranged on the PCB board (2), and the integrated sensor is connected to the mobile phone via a wireless communication protocol or a DATA+DATA-line protocol.

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