High beam and low beam switching device, vehicle lamp and vehicle

Patent metadata

Field	Value
Publication number	US-11745644-B2
Application number	US-202017631176-A
Country	US
Kind code	B2
Filing date	Mar 30, 2020
Priority date	Dec 4, 2019
Publication date	Sep 5, 2023
Grant date	Sep 5, 2023

Abstract

A high beam and low beam switching device, a vehicle lamp comprising the high beam and low beam switching device, and a vehicle, the device comprising a light shielding plate, an impeller, and a driving device that is used for driving the light shielding plate and the impeller to rotate forwards and backwards; and a limiting mechanism used for limiting the rotation angle of the light shielding plate is provided between the light shielding plate and the driving device. The high-beam and low-beam switching device can achieve the successful switching of a high beam and a low beam, and the use of a vehicle lamp will not be affected; mist or moisture in the interior of the vehicle lamp can be removed, and meanwhile, the heat dissipation effect of the vehicle lamp can be improved, and the space that is occupied by the vehicle lamp will not be increased.

First claim

The invention claimed is:

1. A high beam and low beam switching device, comprising a light shielding plate, an impeller and a driving device that is used for driving the light shielding plate and the impeller to rotate forwards and backwards, wherein a limiting mechanism used for limiting the rotation angle of the light shielding plate is provided between the light shielding plate and the driving device.

2. The high beam and low beam switching device according to claim 1 , wherein the driving device comprises a motor and a friction wheel providing on a drive shaft of the motor, and the friction wheel is in contact with the light shielding plate.

3. The high beam and low beam switching device according to claim 2 , wherein the light shielding plate comprises a light shielding plate body provided with a first connecting rod, and the friction wheel is in contact with the first connecting rod.

4. The high beam and low beam switching device according to claim 1 , wherein the driving device comprises a motor and a fluid coupling, a pump wheel of the fluid coupling is connected to the drive shaft of the motor, and a turbine of the fluid coupling is connected to the light shielding plate.

5. The high beam and low beam switching device according to claim 1 , wherein the light shielding plate comprises the light shielding plate body, and a second connecting rod is disposed on the light shielding plate body; the limiting mechanism comprises a limiting block disposed on the driving device, and a limiting groove is formed in the limiting block;
the second connecting rod is rotationally connected with the driving device; and the second connecting rod is provided with a protrusion, and the protrusion is disposed in the limiting groove so as to limit the rotation angle of the light shielding plate.

6. The high beam and low beam switching device according to claim 1 , wherein the light shielding plate comprises the light shielding plate body, and a second connecting rod is disposed on the light shielding plate body; the limiting mechanism comprises two limiting blocks disposed on the driving device, and a limiting groove is formed between the two limiting blocks;
the second connecting rod is rotationally connected with the driving device; and the second connecting rod is provided with a protrusion, and the protrusion is disposed in the limiting groove so as to limit the rotation angle of the light shielding plate.

7. The high beam and low beam switching device according to claim 1 , wherein the driving device is further provided with a spring assembly configured to reset the light shielding plate.

8. The high beam and low beam switching device according to claim 7 , wherein the spring assembly comprises a scroll spring and a spring support, the scroll spring is fixed to the driving device by the spring support, and a free end of the scroll spring is connected to the light shielding plate.

9. A vehicle lamp, comprising the high beam and low beam switching device according to claim 1 .

10. A vehicle, comprising the vehicle lamp according to claim 9 .

11. The vehicle lamp according to claim 9 , wherein the driving device comprises a motor and a friction wheel providing on a drive shaft of the motor, and the friction wheel is in contact with the light shielding plate.

12. The vehicle lamp according to claim 11 , wherein the light shielding plate comprises a light shielding plate body provided with a first connecting rod, and the friction wheel is in contact with the first connecting rod.

13. The vehicle lamp according to claim 9 , wherein the driving device comprises a motor and a fluid coupling,
a pump wheel of the fluid coupling is connected to the drive shaft of the motor, and a turbine of the fluid coupling is connected to the light shielding plate.

14. The vehicle lamp according to claim 9 , wherein the light shielding plate comprises the light shielding plate body, and a second connecting rod is disposed on the light shielding plate body; the limiting mechanism comprises a limiting block disposed on the driving device, and a limiting groove is formed in the limiting block;
the second connecting rod is rotationally connected with the driving device; and the second connecting rod is provided with a protrusion, and the protrusion is disposed in the limiting groove so as to limit the rotation angle of the light shielding plate.

15. The vehicle lamp according to claim 9 , wherein the light shielding plate comprises the light shielding plate body, and a second connecting rod is disposed on the light shielding plate body; the limiting mechanism comprises two limiting blocks disposed on the driving device, and a limiting groove is formed between the two limiting blocks;
the second connecting rod is rotationally connected with the driving device; and the second connecting rod is provided with a protrusion, and the protrusion is disposed in the limiting groove so as to limit the rotation angle of the light shielding plate.

16. The vehicle lamp according to claim 9 , wherein the driving device is further provided with a spring assembly configured to reset the light shielding plate.

17. The vehicle lamp according to claim 16 , wherein the spring assembly comprises a scroll spring and a spring support, the scroll spring is fixed to the driving device by the spring support, and a free end of the scroll spring is connected to the light shielding plate.

Assignees

• Hasco Vision Tech Co Ltd

Inventors

• Zhang Jie

Classifications

• B60Q1/1438 Primary

  Actuating means for dimming masks or screens · CPC title

• F21S45/42

  Forced cooling · CPC title

• F21S45/30

  Ventilation or drainage of lighting devices · CPC title

• F21S41/689 Primary

  Flaps, i.e. screens pivoting around one of their edges · CPC title

• F21S45/43

  using gas · CPC title