Vehicle lamp and vehicle

Abstract

The vehicle lamp comprises a vehicle lamp body, a supporting part is arranged in the vehicle lamp body, a light emitting unit is arranged on the supporting part, a reflector is arranged above the light emitting unit in a covering mode, an air channel is formed in the vehicle lamp body in a penetrating mode, a guide hole facing the reflector is formed in the side wall of the air channel, and the reflector is a hard elastic reflector. The top of the reflector is provided with a guide rod movably arranged in the guide hole, the guide rod is sleeved with a spring, the two ends of the spring abut against the outer wall of the reflector and the outer wall of the air duct respectively, the reflector deforms under the pressure of the spring, the two sides of the reflector expand outwards, an air blocking assembly is arranged in the air duct, and the guide rod is connected with the air blocking assembly through an inhaul cable. According to the vehicle lamp and the vehicle, the focusing degree of the vehicle lamp can be automatically, continuously and dynamically adjusted according to the vehicle speed, manual operation is not needed, the structure is simple, cost is low, and the worry about electronic control failure is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical fields of vehicle lighting devices and vehicles, and specifically relates to a vehicle lamp and a vehicle, particularly to a headlamp capable of adjusting beam focusing and divergence, and a vehicle equipped with such a headlamp. Background Art

[0002] In the field of vehicle lighting, the beam distribution and illumination range of vehicle lamps are directly related to driving safety and driving experience. Traditional vehicle lamp systems usually adjust the position of lenses, reflectors or light shields through mechanical or electronic actuators (such as motors, stepper motors or electromagnetic actuators) to achieve the switching between high beam and low beam or the adjustment of the local illumination range. Most vehicle lamps in the prior art only support limited preset lighting modes (such as high and low angle adjustment), and cannot dynamically respond to the real-time requirements of light shape divergence and focusing due to vehicle speed changes.

[0003] Regarding the lighting requirements for vehicle speed adaptability, there are obvious deficiencies in the prior art. When driving at low speeds (such as in urban roads or oncoming vehicle scenarios), drivers need the vehicle lamp beam to be more divergent to expand the lateral illumination range and avoid dazzling the oncoming vehicle driver; while when driving at high speeds, a highly focused beam is required to enhance the long-distance illumination ability and ensure early identification of obstacles. Current solutions mostly rely on drivers to manually switch the lighting mode, or change the beam projection angle through a simple high and low adjustment mechanism, but such methods cannot achieve continuous dynamic adjustment of the light shape divergence and focusing degree, and manual operation is likely to distract the driver's attention. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a vehicle lamp and a vehicle that can automatically and continuously adjust the focusing degree of the vehicle lamp according to the vehicle speed, without manual operation, and has a simple structure, low cost, and no worry about electronic control failure.

[0005] To solve the above technical problems, the present invention is solved by the following technical solutions: A vehicle lamp includes a lamp body, a support portion is provided in the lamp body, a light-emitting unit is provided on the support portion, a reflector is provided above the light-emitting unit, an air duct is provided through the lamp body, a guiding hole facing the reflector is provided on the side wall of the air duct, the reflector is a rigid elastic reflector, a guiding rod movably provided in the guiding hole is provided at the top of the reflector, a spring is sleeved on the guiding rod, two ends of the spring respectively abut against the outer wall of the reflector and the outer wall of the air duct, the reflector deforms and expands outwards on both sides under the pressure of the spring, a wind-shielding assembly is provided in the air duct, the guiding rod is connected to the wind-shielding assembly through a cable, the wind-shielding assembly can be pushed to move or rotate by the airflow in the air duct to pull up the guiding rod, when the guiding rod is pulled up, the reflector gradually focuses. When the vehicle is running at a low speed, the airflow can pass through the air duct, but the wind-shielding assembly will not be pushed or rotated, and the reflector is bent by the spring, and the outer contours on both sides are such that the light emitted by the light-emitting unit is divergent, avoiding dazzling the oncoming vehicle; during the process of the vehicle speed gradually increasing, the airflow can pass through the air duct, pushing the wind-shielding assembly to move or rotate, and the guiding rod is lifted through the cable during the movement or rotation of the wind-shielding assembly. The faster the vehicle speed, the greater the amplitude of the movement or rotation of the wind-shielding assembly. The reflector restores due to its own elastic force and the pulling force of the cable, and the focusing degree is gradually improved. The light gradually focuses as the vehicle speed increases, so that the focusing degree can be continuously and dynamically adjusted automatically according to the vehicle speed without manual operation, the structure is simple, the cost is low, and there is no worry about the failure of electronic control.

[0006] In the above technical solution, preferably, the reflector is made of spring steel, and a reflective coating is coated on the inner wall of the reflector. Since spring steel has a high elastic modulus and excellent fatigue resistance, it is suitable as the material of the reflector in the present invention to meet the long-term repeated expansion and contraction operation.

[0007] In the above technical solution, preferably, the original state of the reflector is a quarter-ellipsoidal shell shape. Adopting this structure enables the reflector to have a better focusing degree when it restores.

[0008] In the above technical solution, preferably, the light-emitting unit is disposed on the movable plate. The movable plate is provided with inclined holes, and driving arms extending into the inclined holes are disposed at the bottoms of both sides of the reflector. When the two sides of the reflector are closed, the driving arms push against the side walls of the inclined holes to drive the movable plate to move. When the reflector is restored to the shape of a quarter-ellipsoidal shell, the light-emitting unit moves to the focus of the quarter-ellipsoidal shell. With this structure, the light-emitting unit on the movable plate can be driven to move during the expansion and contraction of the reflector. When the vehicle speed is relatively low, the light-emitting unit leaves the focal position, making the light divergence effect better and avoiding dazzling the oncoming vehicle. During the process of gradually increasing the vehicle speed, the light-emitting unit gradually approaches the focal position, and when the guide rod is lifted to the highest position, the light-emitting unit returns to the focal position, making the light focusing degree better.

[0009] In the above technical solution, preferably, the reflector is fixed on the support portion, and a gap for the movable plate to move is formed between the reflector and the support portion.

[0010] In the above technical solution, preferably, a limiting portion for limiting the highest lifting position of the guide rod is disposed on the outer periphery of the guide rod. When the guide rod is lifted to the highest position, the reflector is restored to the shape of a quarter-ellipsoidal shell. With this structure, the reflector can be restored to the shape of a quarter-ellipsoidal shell when reaching a certain vehicle speed, and due to the limitation of the limiting portion, the guide rod will not be lifted anymore, so that the reflector remains in the quarter-ellipsoidal shell shape with the best focusing degree after exceeding this vehicle speed.

[0011] In the above technical solution, preferably, at least two limiting pins for limiting the up and down movement of the movable plate are disposed on the support portion, and a waist-shaped hole along the moving direction of the movable plate is disposed on the movable plate. When the movable plate moves, the limiting pins move in the waist-shaped hole. With this structure, the up and down movement and swaying of the movable plate can be avoided, and the movable plate can only move along the direction of the waist-shaped hole, making the operation of driving the movable plate to move during the expansion and contraction of the reflector more stable.

[0012] In the above technical solution, preferably, the wind shield assembly includes an elastic inclined plate whose top is fixed to the top of the air duct and obliquely blocks the air duct. The elastic inclined plate is connected to the guide rod through the cable. The elastic inclined plate can almost completely open the air duct when the wind force in the air duct is large, effectively avoiding the accumulation of sundries in the air duct.

[0013] In the above technical solution, preferably, the wind shield assembly includes a movable plug slidably disposed in the air duct and matching the shape of the air duct. Ventilation holes are disposed on the movable plug.

[0014] A vehicle equipped with the above-mentioned vehicle lamp. An air inlet is provided at the front of the vehicle, and an air outlet is provided on the side or bottom of the vehicle. The air inlet is connected to the air inlet side of the air duct through a ventilation pipe fitting, and the air outlet is connected to the air outlet side of the air duct through a ventilation pipe fitting. With this structure, the vehicle can cooperate with the vehicle lamp of the present invention to supply air volume to the air duct, so that the air duct in the vehicle lamp can have a larger air volume when the vehicle speed is relatively fast and a smaller air volume when the vehicle speed is relatively slow, and cooperate with the vehicle lamp to automatically and continuously adjust the focusing degree of the vehicle lamp according to the vehicle speed, without worrying about electronic control failure.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When the vehicle is traveling at a low speed, the air flow can pass through the air duct, but the windshield assembly will not be pushed or rotated, and the reflector is bent by the spring, and the outer contours on both sides cause the light emitted by the light-emitting unit to diverge, avoiding dazzling the oncoming vehicle; During the process of gradually increasing the vehicle speed, the air flow can pass through the air duct, pushing the windshield assembly to move or rotate. During the movement or rotation of the windshield assembly, the guide rod is lifted through the cable. The faster the vehicle speed, the greater the movement or rotation amplitude of the windshield assembly. The reflector is restored due to its own elastic force and the pulling force of the cable, and the focusing degree is gradually improved, and the light is gradually focused as the vehicle speed increases, so that the focusing degree can be automatically and continuously adjusted according to the vehicle speed without manual operation, with a simple structure, low cost, and no worry about electronic control failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the vehicle lamp.

[0017] Figure 2 It is a schematic exploded view of Embodiment 1 of the vehicle lamp.

[0018] Figure 3 It is a schematic diagram of the installation structure of the movable plate inside the vehicle lamp.

[0019] Figure 4 It is a schematic sectional view of Embodiment 1 of the vehicle lamp.

[0020] Figure 5 It is a schematic sectional view of Embodiment 1 of the vehicle lamp in another direction.

[0021] Figure 6 It is a schematic sectional view of Embodiment 2 of the vehicle lamp.

[0022] Figure 7 It is a schematic diagram of a partial structure of the front of a vehicle equipped with the vehicle lamp of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0023] The present invention will be further described in detail below in conjunction with the drawings and the specific embodiments: Refer to Figures 1 to 5, A vehicle lamp, comprising a lamp body. The lamp body includes an annular bracket 100 at the front end and a tail cover 200 at the rear end. The annular bracket 100 and the tail cover 200 are fixed by bolts. There is a light-transmitting hole 300 in the center of the annular bracket 100. A lens 400 is installed in the light-transmitting hole 300. Along the outer side of the light-transmitting hole 300, several annular LED light-emitting chips are provided. A ring-shaped light guide member 500 is installed on the front side of the LED light-emitting chips. These LED light-emitting chips are used as outline lights or daytime running lights. A support portion 1 is provided inside the lamp body. The support portion is connected to the annular bracket. A light-emitting unit 2 is provided on the support portion 1. The light-emitting unit 2 is a high-power LED light-emitting chip. A reflector 3 is provided above the light-emitting unit 2. The reflecting direction of the reflector 3 faces the light-transmitting hole. An air duct 4 is provided through the lamp body. The air duct 4 passes through the tail cover 200. A guiding hole 5 facing the reflector 3 is provided on the side wall of the air duct 4. The reflector 3 is a rigid elastic reflector 3. A guiding rod 6 movably arranged in the guiding hole 5 is provided at the top of the reflector 3. A spring 7 is sleeved on the guiding rod 6. Two ends of the spring 7 respectively abut against the outer wall of the reflector 3 and the outer wall of the air duct 4. The reflector 3 deforms and expands outwards on both sides under the pressure of the spring 7. A wind-shielding assembly is provided in the air duct 4. The guiding rod 6 is connected to the wind-shielding assembly through a cable 8. The wind-shielding assembly can be pushed to move or rotate by the airflow in the air duct 4 to pull the guiding rod 6 to lift. When the guiding rod 6 is lifted, the reflector 3 gradually focuses. When the vehicle is traveling at a low speed, the airflow can pass through the air duct 4, but the wind-shielding assembly will not be pushed or rotated. The reflector 3 is bent by the spring 7, and the outer contours on both sides are formed, so that the light emitted by the light-emitting unit 2 is divergent, avoiding dazzling the oncoming vehicle; during the process of the vehicle speed gradually increasing, the airflow can pass through the air duct 4, pushing the wind-shielding assembly to move or rotate. During the movement or rotation of the wind-shielding assembly, the guiding rod 6 is lifted through the cable 8. The faster the vehicle speed, the greater the amplitude of the movement or rotation of the wind-shielding assembly. The reflector 3 is restored due to its own elastic force and the pulling force of the cable 8, and the focusing degree is gradually improved. The light is gradually focused as the vehicle speed increases, so that the focusing degree can be continuously and dynamically adjusted automatically according to the vehicle speed without manual operation, with a simple structure, low cost, and no worry about electronic control failure.

[0024] In this embodiment, the reflector 3 is made of spring 7 steel, and a reflective coating is applied to the inner wall of the reflector 3. Since spring 7 steel has a high elastic modulus and excellent fatigue resistance, it is suitable as the material of the reflector 3 in the present invention to meet the long-term repeated expansion and contraction operation.

[0025] In order to improve the sealing performance between the guiding hole 5 and the guiding rod 6 and prevent foreign objects from entering the vehicle lamp, a guiding sleeve 9 extends from the bottom of the guiding hole 5. A sealing ring is provided between the guiding sleeve 9 and the guiding rod 6. The sealing ring is limited in the annular groove on the inner wall of the guiding sleeve 9.

[0026] Furthermore, the reflector 3 is in the original state of a quarter-ellipsoidal shell shape. Adopting this structure enables the reflector 3 to have better focusing when it is restored.

[0027] Furthermore, the light-emitting unit 2 is arranged on the movable plate 10. Oblique holes 11 are arranged on the movable plate 10. Driving arms 12 extending into the oblique holes 11 are arranged at the bottoms on both sides of the reflector 3. When the two sides of the reflector 3 are closed, the driving arms 12 push against the side walls of the oblique holes 11 to drive the movable plate 10 to move. When the reflector 3 is restored to the quarter-ellipsoidal shell shape, the light-emitting unit 2 moves to the focus of the quarter-ellipsoidal shell. Adopting this structure can drive the light-emitting unit 2 on the movable plate 10 to move during the expansion and contraction processes of the reflector 3. When the vehicle speed is relatively low, the light-emitting unit 2 leaves the focal position, making the light divergence effect better and avoiding dazzling the oncoming vehicle. During the process of the vehicle speed gradually increasing, the light-emitting unit 2 gradually approaches the focal position, and when the guide rod 6 is lifted to the highest position, the light-emitting unit 2 returns to the focal position, making the light focusing degree better.

[0028] In this embodiment, the reflector 3 is fixed to the support portion 1, and a gap for the movable plate 10 to move is formed between the reflector 3 and the support portion 1.

[0029] In this embodiment, a limiting portion 13 for limiting the highest lifting position of the guide rod 6 is arranged on the outer periphery of the guide rod 6. The limiting portion 13 is an annular protrusion arranged on the outer periphery of the guide rod 6 with an outer diameter larger than the hole inside the guide sleeve 9. When the guide rod 6 is lifted to the highest position, the reflector 3 is restored to the quarter-ellipsoidal shell shape. Adopting this structure can enable the reflector 3 to be restored to the quarter-ellipsoidal shell shape when reaching a certain vehicle speed, and due to the limitation of the limiting portion 13, the guide rod 6 will not be lifted anymore, so that the reflector 3 remains in the quarter-ellipsoidal shell shape with the best focusing degree after exceeding this vehicle speed.

[0030] In this embodiment, two limiting pins 14 for limiting the up and down movement of the movable plate 10 are arranged on the support portion 1. A waist-shaped hole 15 along the moving direction of the movable plate 10 is arranged on the movable plate 10. When the movable plate 10 moves, the limiting pins 14 move in the waist-shaped hole 15. Adopting this structure can prevent the movable plate 10 from moving up and down and swaying. The movable plate 10 can only move along the direction of the waist-shaped hole 15, making the operation of driving the movable plate 10 to move during the expansion and contraction of the reflector 3 more stable.

[0031] In this embodiment, the windshield assembly includes an elastic inclined plate 16 whose top is fixed to the top of the air duct 4 and obliquely seals the air duct 4. The elastic inclined plate 16 is connected to the guide rod 6 through a cable 8. The elastic inclined plate 16 can almost completely open the air duct 4 when the wind force in the air duct 4 is relatively large, effectively preventing debris from accumulating in the air duct 4.

[0032] See Figure 6, Embodiment 2. The difference between Embodiment 2 and Embodiment 1 lies only in the windshield assembly. The windshield assembly includes a movable plug 17 slidably disposed in the air duct 4 and matching the shape of the air duct 4, and ventilation holes 18 are provided on the movable plug 17.

[0033] See Figure 7 , A vehicle equipped with a vehicle lamp as in Embodiment 1 or Embodiment 2. An air inlet 19 is provided on the front face of the vehicle, and an air outlet 20 is provided on the side or bottom of the vehicle. The air inlet 19 is connected to the air inlet side of the air duct 4 through a ventilation pipe fitting, and the air outlet 20 is connected to the air outlet side of the air duct 4 through a ventilation pipe fitting. With this structure, the vehicle can cooperate with the vehicle lamp of the present invention to supply air volume to the air duct 4, so that the air duct 4 in the vehicle lamp can have a larger air volume when the vehicle speed is relatively fast and a smaller air volume when the vehicle speed is relatively slow, and cooperate with the vehicle lamp to continuously and dynamically adjust the focusing degree of the vehicle lamp automatically according to the vehicle speed, without worrying about the failure of electronic control.

[0034] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A vehicle lamp, comprising a vehicle lamp body, wherein a support portion (1) is arranged in the vehicle lamp body, a light emitting unit (2) is arranged on the support portion (1), and a reflector (3) is arranged above the light emitting unit (2), characterized in that: The vehicle lamp body is provided with an air duct (4) extending through the side wall of the air duct (4) and having a guide hole (5) facing the reflector (3). The reflector (3) is a hard elastic reflector (3). The top of the reflector (3) is provided with a guide rod (6) movably arranged in the guide hole (5). A spring (7) is sleeved on the guide rod (6). The two ends of the spring (7) respectively abut against the outer wall of the reflector (3) and the outer wall of the air duct (4). The reflector (3) is deformed and expanded outwards on both sides under the pressure of the spring (7). A windshield component is provided in the air duct (4). The guide rod (6) is connected to the windshield component via a cable (8). The windshield component can be moved or rotated by the airflow in the air duct (4) to pull the guide rod (6) to be lifted. When the guide rod (6) is lifted, the reflector (3) is gradually focused.

2. A vehicle lamp according to claim 1, characterized in that: The reflector (3) is made of spring (7) steel, and the inner wall of the reflector (3) is coated with a reflective coating.

3. The vehicle lamp according to claim 1, characterized in that: The reflector (3) is in the shape of a quarter ellipsoidal shell in its original state.

4. A vehicle lamp as claimed in claim 3, characterized in that: The light-emitting unit (2) is arranged on a movable plate (10), and an inclined hole (11) is arranged on the movable plate (10). Driving arms (12) extending into the inclined holes (11) are arranged at the bottoms of both sides of the reflector (3). When both sides of the reflector (3) are retracted, the driving arms (12) push against the side walls of the inclined holes (11) to drive the movable plate (10) to move. When the reflector (3) is restored to a quarter ellipsoidal shell shape, the light-emitting unit (2) moves to the focus of the quarter ellipsoidal shell.

5. A vehicle lamp as claimed in claim 4, characterized in that: The reflector (3) is fixed on the support portion (1), and a gap is formed between the reflector (3) and the support portion (1) for the movable plate (10) to move.

6. A vehicle lamp as claimed in claim 4, characterized in that: The outer periphery of the guide rod (6) is provided with a limiting portion (13) for limiting the highest lifting position of the guide rod (6); when the guide rod (6) is lifted to the highest position, the reflector (3) returns to a quarter ellipsoidal shell shape.

7. A vehicle lamp as claimed in claim 4, characterized in that: The support portion (1) is provided with at least two limiting pins (14) for limiting the upward and downward movement of the movable plate (10); the movable plate (10) is provided with a waist hole (15) along the moving direction of the movable plate (10); when the movable plate (10) moves, the limiting pins (14) move in the waist hole (15).

8. The vehicle lamp according to claim 1, characterized in that: The wind shield assembly comprises an elastic inclined plate (16) whose top is fixed to the top of the air duct (4) to obliquely block the air duct (4); the elastic inclined plate (16) is connected to the guide rod (6) via the cable (8).

9. The vehicle lamp according to claim 1, characterized in that: The wind shield assembly comprises a movable plug (17) slidably arranged in the air duct (4) and matching the shape of the air duct (4), and a ventilation hole (18) is arranged on the movable plug (17).

10. A vehicle provided with a headlight according to any one of claims 1 to 9, characterized in that: The front face of the vehicle is provided with an air inlet (19), and the side or bottom of the vehicle is provided with an air outlet (20); the air inlet (19) is connected to the air inlet side of the air duct (4) via a ventilation pipe fitting, and the air outlet (20) is connected to the air outlet side of the air duct (4) via a ventilation pipe fitting.

Images