Vehicle-mounted charging module

Abstract

The utility model discloses a vehicle-mounted charging module, which comprises a power supply circuit system and at least two groups of power supply management systems connected with the power supply circuit system, each group of power supply management system is respectively connected with an output system, and the input end of the power supply circuit system is connected with a connecting system and a control system. And the power supply circuit system is also connected with the prompting system. The charger is simple in structure, convenient to install and use, and capable of reflecting the state and the charging power of the charger in time by adding light and sound prompting functions.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle chargers, and particularly relates to a vehicle charging module. Background Art

[0002] The development of vehicle charging devices has gone through several stages and is now moving towards intelligent interfaces and high power supply capabilities. Relying on the universality of its USB interface, vehicle charging devices are developing towards high power and multi-function. With the development of vehicle intelligence, there are more and more application scenarios where portable devices are linked or collaborated with vehicle machines. The USB charger is no longer limited to the single function of charging, and can also use the universality of its USB interface as a window for interaction between portable devices and vehicle devices. Now the technology of new energy domestic cars is becoming more and more mature, the power supply capacity of cars is getting stronger, and the power consumption of vehicle devices is increasing. Currently, cars are developing towards intelligent terminals rather than simply driving tools, requiring higher interactivity and integration of in-vehicle devices to enhance the vehicle's environmental perception and information processing capabilities. At the same time, traditional vehicle charging devices cannot interact with users, and there is less device status indication information, which cannot meet the usage needs of customers. Summary of the Invention

[0003] To solve the above technical problems, a technical solution adopted by the utility model is:

[0004] A vehicle charging module includes a power circuit system and at least two groups of power management systems connected to the power circuit system. Each group of the power management systems is respectively connected to an output system. The input end of the power circuit system is connected with a connection system and a control system, and the power circuit system is also connected with a prompt system;

[0005] The power circuit system includes a protection circuit, a filtering circuit and a status detection circuit; the prompt system is connected in parallel with the power management system through the status detection circuit to the power circuit system, and the status detection circuit is also respectively connected to each group of the power management systems;

[0006] The power management system includes voltage conversion, charging protocol detection and a management chip;

[0007] The output system is a Type-C interface. The forward direction of the vehicle is defined as the X-axis, and the direction of the Type-C interface is perpendicular to the X-axis;

[0008] The connection system is a connector, and the vehicle power module is connected to the charging module through the connector;

[0009] The prompt system includes an LED component and a sound component; the input voltage of the LED component has a linear relationship with the output voltage of each group of the output systems.

[0010] Further, the management chip supports QC and PD charging protocols.

[0011] Further, the PD protocol charging capabilities include 9V3A, 5V3A, PPS 3.3V - 5.9V / 3A, and PPS 3.3V - 11V / 3A charging capabilities.

[0012] Further, the management chip supports output current over - current protection, output voltage over - voltage protection, over - temperature protection, and output short - circuit protection.

[0013] Advantages of the present utility model:

[0014] 1. The structure of the present utility model is simple, convenient for installation and use. It can be installed inside the vehicle instrument panel and under the center console. It can be well integrated with the vehicle, changes the common horizontal interface to a vertical one, supports blind plugging, reduces the fatigue caused by the movement of portable devices and extends the service life of the cable. It combines multiple modules with charging and user - interaction functions, greatly improving the convenience of the demand for vehicle chargers and comprehensively enhancing the electrical characteristic parameter indicators.

[0015] 2. The present utility model has a light - prompting function, upgrades the simple light - indicating function to a light that changes with the charging speed to prompt the user of the current charging speed, and uses different prompt sounds to indicate the charger status when entering different protection states, reminding the user to check the device being charged and maintain the in - vehicle charging device in a timely manner; the prompt sound is controlled by the internal circuit, a long beep for short - circuit protection, a rapid short beep for over - current protection, a red light for over - temperature protection, and a red flashing light for over - voltage protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall module of the present utility model;

[0017] Figure 2 is a schematic diagram of an embodiment of the present utility model;

[0018] The marks of each part in the drawings are as follows:

[0019] 1. Power circuit system; 11. Protection circuit; 12. Filter circuit; 13. State detection circuit;

[0020] 2. Power management system; 21. Voltage conversion; 22. Charging protocol detection; 23. Management chip; 3. Output system; 4. Connection system; 5. Control system; 6. Prompt system; 61. LED component; 62. Sound component. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0022] Embodiment 1:

[0023] As Figure 1 shown, a vehicle-mounted charging module includes a power circuit system 1 and at least two groups of power management systems 2 connected to the power circuit system 1. Each group of the power management systems 2 is respectively connected to an output system 3. The input end of the power circuit system 1 is connected with a connection system 4 and a control system 5, and the power circuit system 1 is also connected to a prompt system 6;

[0024] The power circuit system 1 includes a protection circuit 11, a filtering circuit 12 and a state detection circuit 13; the prompt system 6 is connected in parallel with the power management system 2 through the state detection circuit 13 to the power circuit system 1, and the state detection circuit 13 is also respectively connected to each group of the power management systems 2;

[0025] The power management system 2 includes a voltage conversion 21, a charging protocol detection 22 and a management chip 23; specifically, the management chip supports QC and PD protocol charging protocols. Specifically, the PD protocol charging capabilities include 9V3A, 5V3A, PPS3.3V - 5.9V / 3A, and PPS3.3V - 11V / 3A charging capabilities. Specifically, the management chip 23 supports overcurrent protection of the output current, overvoltage protection of the output voltage, over-temperature protection, and output short-circuit protection.

[0026] The output system 3 is a Type-C interface. The vehicle forward direction is defined as the X-axis, and the direction of the Type-C interface is perpendicular to the X-axis;

[0027] The connection system 4 is a connector, and the vehicle-mounted power module is connected to the charging module through the connector;

[0028] The prompt system 6 includes an LED component 61 and a sound component 62; the input voltage of the LED component 61 is linearly related to the output voltage of each group of the output systems 3.

[0029] Control logic:

[0030] Normal working state: When working normally, the indicator light is always on with white light, and the light brightness becomes brighter as the charging voltage increases and decreases as the charging voltage drops. There is no sound prompt, and the lights of the two type-C ports are controlled separately;

[0031] Short - circuit protection state: When the state detection circuit detects that the output Type - C port triggers the short - circuit protection of the voltage conversion chip, a long beep is used for prompting.

[0032] Over - temperature protection state: When the state detection circuit detects the over - temperature protection of the voltage conversion chip, a red light is constantly on for prompting.

[0033] Over - voltage protection state: When the state detection circuit detects that the output Type - C port triggers over - voltage of the voltage conversion chip, a red flashing light is used for prompting.

[0034] Over - current protection state: When the state detection circuit detects that the output Type - C port triggers over - current of the voltage conversion chip, a rapid short beep is used for prompting.

[0035] When any protection is triggered, the charger will stop working until the state returns to the normal state and the charger re - enters the working state. The above four protection states cannot be triggered simultaneously and there is no priority situation.

[0036] The above is only an embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, is similarly included in the patent protection scope of the present utility model.

Claims

1. A vehicle-mounted charging module, characterized in that: It includes a power circuit system (1) and at least two groups of power management systems (2) connected to the power circuit system (1). Each group of the power management systems (2) is respectively connected to an output system (3). The input end of the power circuit system (1) is connected with a connection system (4) and a control system (5), and the power circuit system (1) is also connected to a prompt system (6); The power circuit system (1) includes a protection circuit (11), a filtering circuit (12) and a state detection circuit (13); The prompt system (6) is connected in parallel with the power management system (2) through the state detection circuit (13) to the power circuit system (1), and the state detection circuit (13) is also respectively connected to each group of the power management systems (2); The power management system (2) includes a voltage conversion (21), a charging protocol detection (22) and a management chip (23); The output system (3) is a Type-C interface. The forward direction of the vehicle is defined as the X-axis, and the direction of the Type-C interface is perpendicular to the X-axis; The connection system (4) is a connector, and the in-vehicle power module is connected to the charging module through the connector; The prompt system (6) includes an LED component (61) and a sound component (62); The input voltage of the LED component (61) is linearly related to the output voltage of each group of the output systems (3).

2. The on-vehicle charging module according to claim 1, characterized in that: The management chip supports QC and PD protocol charging protocols.

3. The in-vehicle charging module according to claim 2, characterized in that: The PD protocol charging capabilities include 9V3A, 5V3A, PPS3.3V - 5.9V / 3A, and PPS3.3V - 11V / 3A charging capabilities.

4. The on-vehicle charging module according to claim 1, wherein: The management chip (23) supports overcurrent protection of the output current, overvoltage protection of the output voltage, over-temperature protection, and output short-circuit protection.

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