CN204424975U - A kind of vehicle power - Google Patents

Abstract

The utility model relates to a vehicle-mounted power supply, which includes a power supply housing and a power board, the power board is arranged inside the power housing, and the power board includes an input terminal, a standby power supply, a DC-DC power supply, a DC-DC conversion power supply, and an undervoltage protection circuit , overcurrent protection circuit, output terminal, relay, wireless CPU and antenna, the standby power supply is electrically connected to the input terminal, the input terminal of the DC-DC power supply is electrically connected to the standby power supply, the input terminal of the DC-DC power supply is connected to the relay, and the DC-DC power supply is connected to the relay. The output end of the DC power supply is electrically connected to the output end, the antenna is connected to the wireless CPU, the wireless CPU is connected to the DC-DC power supply, the DC-DC conversion power supply is connected to the output end, the undervoltage protection circuit and the overcurrent protection circuit are connected to the DC-DC power connection. Beneficial effects of the utility model: uninterrupted output; high-power peripherals can be connected to avoid damage to peripherals caused by excessive current and low input voltage; photoelectric fusing reminder is provided, which is convenient for troubleshooting and replacement; it can be connected with the server Carry out wireless communication to realize remote supervision of vehicle power supply.

Description

A vehicle power supply

technical field

The utility model relates to a vehicle power supply.

Background technique

The vehicle-mounted power supply provides power for the vehicle-mounted electronic equipment and many other vehicle-mounted electrical appliances. The existing vehicle-mounted power supply cannot output continuously, has high standby power consumption, and does not support wireless communication.

Utility model content

Aiming at the deficiencies in the above problems, the utility model provides an on-vehicle power supply with uninterrupted output, low power consumption, high-power peripherals and wireless communication support.

In order to achieve the above object, the utility model provides a vehicle power supply, which is characterized in that it includes a power supply housing and a power board, the power board is arranged inside the power housing, and the power board includes an input terminal, a standby power supply, a DC-DC power supply, a DC -DC conversion power supply, undervoltage protection circuit, overcurrent protection circuit, output terminal, relay, wireless CPU and antenna, the standby power supply is electrically connected to the input terminal, the input terminal of the DC-DC power supply is electrically connected to the standby power supply, and the DC-DC power supply The input end of the DC-DC power supply is connected to the relay, the output end of the DC-DC power supply is electrically connected to the output end, the antenna is connected to the wireless CPU, the wireless CPU is connected to the DC-DC power supply, the DC-DC conversion power supply is connected to the output end, the undervoltage protection circuit and The overcurrent protection circuits are all connected to the DC-DC power supply.

As a further improvement of the utility model, the voltage of the DC-DC power supply is 6V-60V.

As a further improvement of the utility model, the output voltage and current of the output end are 12V and 10A respectively.

As a further improvement of the utility model, the output current of the relay is less than or equal to 10A.

As a further improvement of the utility model, a 30A photoelectric fuse is provided on the overcurrent protection circuit.

As a further improvement of the utility model, the output voltage ripple at the output end is less than or equal to 50mV.

As preferred in the utility model, the wireless CPU adopts a 2.4G wireless CPU.

The beneficial effects of the utility model are:

1. Uninterrupted output;

2. It can connect high-power peripherals, and at the same time avoid peripheral damage caused by excessive current or low input voltage;

3. It has a photoelectric fuse reminder, which is convenient for troubleshooting and replacement;

4. The wireless CPU can communicate with the server wirelessly to realize remote supervision of the vehicle power supply.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. The accompanying drawings in the following description are only the present invention For the embodiments of the utility model, those of ordinary skill in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is a schematic structural diagram of a vehicle power supply of the present invention.

In the figure: 1. Power supply shell; 2. Power board; 3. Input terminal; 4. Standby power supply; 5. DC-DC power supply; 6. DC-DC conversion power supply; 7. Undervoltage protection circuit; 8. Overcurrent protection circuit; 9. output terminal; 10. relay; 11. wireless CPU; 12. antenna.

Detailed ways

As shown in Fig. 1, a kind of vehicle-mounted power supply of the embodiment of the utility model includes a power supply housing 1 and a power supply board 2, the power supply board 2 is arranged inside the power supply housing 1, and the power supply board 2 includes an input terminal 3, a standby power supply 4, DC-DC power supply 5, DC-DC conversion power supply 6, undervoltage protection circuit 7, overcurrent protection circuit 8, output terminal 9, relay 10, wireless CPU11 and antenna 12, standby power supply 4 is electrically connected to input terminal 3, DC- The input end of the DC power supply 5 is electrically connected to the standby power supply 4, the input end of the DC-DC power supply 5 is connected to the 5 relays 10, the output end of the DC-DC power supply 5 is electrically connected to the output end 9, and the antenna 12 is connected to the wireless CPU 11. The CPU 11 is connected to the DC-DC power supply 5 , the DC-DC conversion power supply 6 is connected to the output terminal 9 of 6 , and both the undervoltage protection circuit 7 and the overcurrent protection circuit 8 are connected to the DC-DC power supply 5 .

The input voltage of the DC-DC power supply 5 is 6V-60V, which can be as low as 4V in an instant to ensure uninterrupted output. The output voltage and current of the output terminal 9 are 12V and 10A respectively, and the output voltage ripple of the output terminal 9 is less than or equal to 50mV, which is used to supply power to the vehicle electronic equipment, such as switches, GPS, video server, AP, etc. The output current of the relay 11 is less than or equal to 10A, and its on and off can be used as a power switch of high-power peripherals such as LED display screens to control the on-off of the vehicle-mounted LED screen. The DC-DC conversion power supply can charge the backup battery. The overcurrent protection circuit 8 is provided with a 30A photoelectric blown fuse, which is easy to replace, and has a photoelectric blown reminder, which is convenient for the user to eliminate the fault as soon as possible. The wireless CPU11 adopts 2.4G wireless CPU, which can communicate with the server wirelessly to realize the remote supervision of the vehicle power supply, including the supervision of the power input voltage, power output voltage, power input current, power output current, power supply operating temperature, etc.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. All within the spirit and principles of the present utility model, any modifications, equivalent replacements, improvements, etc., should be included within the protection scope of the present utility model.

Claims (7)

1. a vehicle power, it is characterized in that, comprise power shell (1) and power panel (2), it is inner that power panel (2) is arranged on power shell (1), power panel (2) comprises input (3), standby power (4), DC-DC power source (5), DC-DC converting power source (6), under-voltage protecting circuit (7), current foldback circuit (8), output (9), relay (10), wireless CPU (11) and antenna (12), standby power (4) is electrically connected with input (3), the input of DC-DC power source (5) is electrically connected with standby power (4), the input of DC-DC power source (5) is connected with relay (10), the output of DC-DC power source (5) is electrically connected with output (9), antenna (12) is connected with wireless CPU (11), wireless CPU (11) is connected with DC-DC power source (5), DC-DC converting power source (6) is connected with output (9), under-voltage protecting circuit (7) is all connected with DC-DC power source (5) with current foldback circuit (8).

2. a kind of vehicle power according to claim 1, is characterized in that: the voltage of DC-DC power source (5) is 6V-60V.

3. a kind of vehicle power according to claim 1, is characterized in that: output voltage and the electric current of output (9) are respectively 12V and 10A.

4. a kind of vehicle power according to claim 1, is characterized in that: the output current of relay (10) is less than or equal to 10A.

5. a kind of vehicle power according to claim 1, is characterized in that: current foldback circuit (8) is provided with the photoelectricity fuse wire of 30A.

6. a kind of vehicle power according to claim 1, is characterized in that: wireless CPU (11) adopts 2.4G wireless CPU.

7. a kind of vehicle power according to claim 1, is characterized in that: the output voltage ripple of output (9) is less than or equal to 50mV.