Vehicle-mounted atmosphere lamp

Abstract

The utility model discloses a vehicle-mounted atmosphere lamp which comprises a vehicle voltage output end, a voltage reduction regulator electrically connected with the vehicle voltage output end, a voltage stabilizing circuit electrically connected with the voltage reduction regulator, a Bluetooth MCU control circuit electrically connected with the voltage stabilizing circuit, and a switching circuit electrically connected with the voltage stabilizing circuit and the Bluetooth MCU control circuit. The lamp strip is connected with the switch circuit; the step-down regulator, the voltage stabilizing circuit, the Bluetooth MCU control circuit and the switching circuit are arranged on the same circuit board; and a chip adopted by the step-down regulator is OC5823. According to the utility model, the voltage reduction regulator in a current mode is adopted, the chip model of the voltage reduction regulator is OC5823, the voltage in an automobile is reduced to 5V to supply power to the lamp strip, the input voltage of the voltage regulator is 0-60V and is enough to cope with the fluctuation of the voltage of an automobile power supply, and meanwhile, the OC5823 chip has over-current and over-temperature protection, so that the service life of the power supply is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of atmosphere lamps, in particular to a vehicle-mounted atmosphere lamp. Background Art

[0002] The lamp beads of the vehicle-mounted ambient light are generally 5V lamp beads, while the vehicle-mounted power supply is 12V, so a power module is needed to reduce the 12V to 5V to power the lamp beads. Most of the ambient lights on the market use a 12V to 5V adapter to power the ambient light, that is, the power supply and the controller are separate. It can be seen that the power supply and controller of the existing vehicle-mounted ambient light are composed of two separate parts, and the physical space occupied is relatively large. Most of the existing vehicle-mounted ambient lights are controlled by physical buttons on the driver's seat, which makes it inconvenient for people sitting in the back row to control the vehicle-mounted ambient light and inconvenient for people sitting in the back row to use.

[0003] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a vehicle-mounted atmosphere light, reduce the physical space occupied in the vehicle, and facilitate the control of the vehicle-mounted atmosphere light.

[0005] The technical solution of the utility model is as follows: Provide a vehicle atmosphere lamp, including: a vehicle voltage output terminal, a buck regulator electrically connected to the vehicle voltage output terminal, a voltage stabilizing circuit electrically connected to the buck regulator, a Bluetooth MCU control circuit electrically connected to the voltage stabilizing circuit, a switch circuit electrically connected to the voltage stabilizing circuit and the Bluetooth MCU control circuit, and a light strip connected to the switch circuit; the buck regulator, the voltage stabilizing circuit, the Bluetooth MCU control circuit, and the switch circuit are arranged on the same circuit board; the chip used by the buck regulator is OC5823. The chip model used by the Bluetooth MCU control circuit is AC6329C, and the chip used by the switch circuit is SN74LVCIGI25. The buck regulator is used to set the voltage in the car to 5V, and the voltage stabilizing circuit is used to ensure voltage stability, thereby providing a stable voltage to the Bluetooth MCU control circuit, the switch circuit, and the light strip, and the Bluetooth MCU control circuit controls the lighting and extinguishing of the light strip by controlling the switch circuit.

[0006] Furthermore, the vehicle-mounted ambient light also includes: a burning interface electrically connected to the Bluetooth MCU control circuit and the voltage output end of the buck regulator.

[0007] Furthermore, the vehicle-mounted ambient light further includes: a first filter capacitor, one end of which is grounded, and the other end of which is connected to the vehicle voltage output terminal. The first filter capacitor is used to filter alternating current.

[0008] Furthermore, the vehicle-mounted ambient light further includes: a second filter capacitor, one end of which is connected to the voltage output end of the buck regulator, and the other end of which is grounded. The second filter capacitor is used to filter alternating current.

[0009] Furthermore, the vehicle-mounted ambient light further includes: a third filter capacitor, one end of which is connected to the voltage output end of the voltage stabilizing circuit, and the other end of which is grounded. The third filter capacitor is used to filter alternating current.

[0010] By adopting the above scheme, the utility model provides a vehicle-mounted atmosphere light. By adopting a current-mode buck regulator, the chip model of which is OC5823, the voltage in the car is reduced to 5V to power the light strip. The input voltage of the voltage regulator is 0-60V, which is enough to cope with the fluctuation of the automobile power supply voltage. At the same time, the OC5823 chip has over-current and over-temperature protection to increase the service life of the power supply. In addition, the OC5823 chip has a high conversion efficiency, which greatly reduces the temperature rise of the power device, thereby not requiring a large heat dissipation area, further increasing the utilization rate of the product. Furthermore, by adopting a high-performance Bluetooth MCU controller, it is convenient for people sitting in the back row to control the vehicle-mounted atmosphere light, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a circuit schematic diagram of the buck regulator of the utility model;

[0012] Figure 2 This is the circuit schematic diagram of the voltage stabilizing circuit and the burning interface;

[0013] Figure 3 This is the circuit schematic diagram of the Bluetooth MCU control circuit;

[0014] Figure 4 This is the circuit diagram of the switching circuit. DETAILED DESCRIPTION

[0015] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] See also Figure 1-Figure 4The utility model provides a vehicle-mounted atmosphere lamp, comprising: a vehicle voltage output terminal 10, a buck regulator 11 electrically connected to the vehicle voltage output terminal 10, a voltage stabilizing circuit 12 electrically connected to the buck regulator 11, a Bluetooth MCU control circuit 13 electrically connected to the voltage stabilizing circuit 12, a switch circuit 14 electrically connected to the voltage stabilizing circuit 12 and the Bluetooth MCU control circuit 13, and a light strip connected to the switch circuit 14; the buck regulator 11, the voltage stabilizing circuit 12, the Bluetooth MCU control circuit 13, and the switch circuit 14 are arranged on the same circuit board; the chip used by the buck regulator 11 is OC5823. The chip model used by the Bluetooth MCU control circuit 13 is AC6329C, and the chip used by the switch circuit 14 is SN74LVCIGI25. The step-down regulator 11 is used to set the voltage in the car to 5V, and the voltage stabilizing circuit 12 is used to ensure voltage stability, thereby providing a stable voltage to the Bluetooth MCU control circuit 13, the switch circuit 14, and the light strip. The Bluetooth MCU control circuit 13 controls the switch circuit 14 to control the lighting and extinguishing of the light strip. Figure 4 , DO in the figure is used to connect the light strip.

[0017] In this embodiment, the vehicle-mounted ambient light further includes: a burning interface 15 electrically connected to the Bluetooth MCU control circuit 13 and the voltage output end of the buck regulator 11 .

[0018] In this embodiment, the vehicle-mounted ambient light further includes: a first filter capacitor 16, one end of which is grounded, and the other end of which is connected to the vehicle voltage output terminal 10. The first filter capacitor 16 is used to filter alternating current.

[0019] In this embodiment, the vehicle ambient light further includes: a second filter capacitor 17, one end of the second filter capacitor 17 is connected to the voltage output end of the buck regulator 11, and the other end is grounded. The second filter capacitor 17 is used to filter alternating current.

[0020] In this embodiment, the vehicle ambient light further includes: a third filter capacitor 18, one end of the third filter capacitor 18 is connected to the voltage output end of the voltage stabilizing circuit 12, and the other end is grounded. The third filter capacitor 18 is used to filter alternating current.

[0021] In summary, the utility model provides a vehicle-mounted atmosphere light, which uses a current-mode buck regulator, the chip model of which is OC5823, to reduce the voltage in the car to 5V to power the light strip. The input voltage of the voltage regulator is 0-60V, which is enough to cope with the fluctuation of the car power supply voltage. At the same time, the OC5823 chip has over-current and over-temperature protection to increase the service life of the power supply. In addition, the OC5823 chip has a high conversion efficiency, which greatly reduces the temperature rise of the power device, thereby not requiring a large heat dissipation area, further increasing the utilization rate of the product. Furthermore, by adopting a high-performance Bluetooth MCU controller, it is convenient for people sitting in the back row to control the vehicle-mounted atmosphere light, which is easy to use.

[0022] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle-mounted atmosphere light, characterized in that: include: A vehicle voltage output terminal, a buck regulator electrically connected to the vehicle voltage output terminal, a voltage stabilizing circuit electrically connected to the buck regulator, a Bluetooth MCU control circuit electrically connected to the voltage stabilizing circuit, a switching circuit electrically connected to the voltage stabilizing circuit and the Bluetooth MCU control circuit, and a light strip connected to the switching circuit; the buck regulator, the voltage stabilizing circuit, the Bluetooth MCU control circuit, and the switching circuit are arranged on the same circuit board; the buck regulator uses an OC5823 chip.

2. The vehicle-mounted atmosphere light according to claim 1, characterized in that: Also includes: A burning interface electrically connected to the Bluetooth MCU control circuit and the voltage output end of the buck regulator.

3. The vehicle-mounted atmosphere light according to claim 1, characterized in that: Also includes: A first filter capacitor, one end of which is grounded, and the other end of which is connected to the vehicle voltage output end.

4. The vehicle-mounted ambient light according to claim 1, characterized in that: Also includes: A second filter capacitor, one end of the second filter capacitor is connected to the voltage output end of the buck regulator, and the other end is grounded.

5. The vehicle-mounted ambient light according to claim 1, characterized in that: Also includes: A third filter capacitor, one end of the third filter capacitor is connected to the voltage output end of the voltage stabilizing circuit, and the other end is grounded.

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