LED illumination control module of automobile front combination lamp

Abstract

The invention discloses an automobile front combination lamp LED illumination control module, and relates to the technical field of automobile illumination. According to the invention, the angle of reflected light can be controlled by adopting the reversal of a plurality of reflectors, so that a wider illumination range is obtained; by independently controlling the plurality of reflectors to reversely rotate more than a right angle, light rays at positions which do not need to be illuminated can be turned off, so that normal driving of vehicles and pedestrians in the opposite direction cannot be influenced; the thermal management system is arranged, and a low-temperature distillation mode is adopted, so that the temperature of the LED luminous body can be controlled, the LED luminous body is ensured to be at a normal working temperature for a long time, and the aging speed of the LED luminous body is slowed down.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile lighting, and in particular to an LED lighting control module for an automobile front combination lamp. Background Art

[0002] With the continuous advancement of automotive technology, the importance of automotive lighting systems has become increasingly prominent. Traditional automotive headlight systems primarily consist of halogen lamps or HID (high-intensity discharge) lamps. While these traditional lighting systems meet the needs of driving at night or in low-light conditions to a certain extent, they also have some significant shortcomings. For example, halogen lamps have low luminous efficiency and a short lifespan. While HID lamps have a longer lifespan, they take a long time to start up and require high-voltage current, which increases the burden on the circuit system. Furthermore, traditional automotive lighting systems typically only provide a single lighting mode and cannot dynamically adjust to the driving environment and driving needs, which undoubtedly affects driving safety and comfort.

[0003] Currently, in the existing technology, there is an invention patent with the announcement number CN101251232B, which discloses a lighting device for automobiles. Although it can improve the heat emission of the lighting system, it cannot make adaptive lighting according to oncoming vehicles and pedestrians, thereby affecting the normal driving of others at night. Summary of the Invention

[0004] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: an automotive front combination lamp LED lighting control module, comprising a housing, a lighting assembly fixedly mounted in the housing, the lighting assembly comprising a support rod, an LED light-emitting body and a light shielding sheet fixedly mounted on the support rod, a gap between the LED light-emitting body and the light shielding sheet, a reflector bracket arranged at an angle of 45° and a light-transmitting plate arranged perpendicular to the upper surface of the light shielding sheet fixedly mounted on the light shielding sheet, a plurality of movable rectangular holes arranged in a rectangular array are opened on the reflector bracket, one side of each movable rectangular hole is rotatably mounted with a reflector through a torsion spring, and the other side of the movable rectangular hole is provided with a static limiting Chamfer, the reflector is equipped with a dynamic limiting chamfer that overlaps with the static limiting chamfer to limit the swing angle of the reflector; the shading sheet is provided with through holes arranged in a rectangular array in the same number as the movable rectangular holes, and each through hole is equipped with a lens to focus the light emitted by the LED light-emitting body onto the reflector, and the upper surface of the shading sheet is also fixedly installed with shading rings with the same position and number as each lens; each reflector is fixedly installed with a rope, and each rope is fixedly installed with a magnet at one end away from the reflector, and each magnet is slidably installed on the corresponding magnet sliding frame, and the magnet sliding frame is fixedly installed with an electromagnet that cooperates with the magnet at one end away from the reflector.

[0005] Preferably, the light-transmitting plate and the top end of the reflective sheet bracket are fixedly connected, and the angle between the two is set at 45 degrees, and two side shading plates are fixedly installed at both ends of the light-transmitting plate.

[0006] Preferably, the light-transmitting plate is provided with through holes arranged in a rectangular array, the number of which is in communication with the movable rectangular holes, for transmitting light reflected by the reflective sheet.

[0007] Preferably, a sliding groove is provided on the magnet sliding frame to facilitate the sliding of the magnet on the magnet sliding frame.

[0008] Preferably, all the magnet sliding frames are fixedly mounted on a sliding frame support plate, and the sliding frame support plate is fixedly mounted in the housing.

[0009] Preferably, it also includes a thermal management system for controlling the temperature of the LED light-emitting body, which includes a heat absorption chamber and an evaporation chamber. The heat absorption chamber is bonded to the LED light-emitting body, and thermal grease is applied between the bonding surfaces. The heat absorption chamber and the evaporation chamber are fixedly connected to the outer shell.

[0010] Preferably, the water inlet of the heat absorption chamber is connected to the drain outlet of the evaporation chamber through a second condenser pipe, and a water pump is arranged in series on the second condenser pipe, and the drain outlet of the heat absorption chamber is connected to the water inlet of the evaporation chamber through a first condenser pipe.

[0011] Preferably, at least 10 condensation chambers are fixedly installed on the upper surface of the evaporation chamber, each condensation chamber is hollow inside, and the condensation chamber is connected to the inside of the evaporation chamber. Several heat sinks are vertically arranged on all the condensation chambers, and heat dissipation modules are rotatably installed on the sides of all the heat sinks.

[0012] Preferably, the heat absorption chamber and the evaporation chamber are filled with cooling liquid, and the liquid level of the cooling liquid shall not be higher than the upper surface height of the evaporation chamber, and the interiors of the heat absorption chamber, the evaporation chamber and the condensation chamber are set at a negative pressure.

[0013] Compared with the prior art, the present invention has the following advantages: (1) The present invention adopts the reversal of multiple reflectors to control the angle of reflected light, thereby obtaining a wider lighting range; (2) The present invention can turn off the light in the position where lighting is not required by independently controlling the reversal of multiple reflectors greater than a right angle, thereby not affecting the normal driving of oncoming vehicles and pedestrians; (3) The thermal management system provided in the present invention adopts the low-temperature distillation method to control the temperature of the LED light-emitting body, ensure that the LED light-emitting body is at normal operating temperature for a long time, and slow down its aging rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the shell invention.

[0015] Figure 2 Schematic diagram of the thermal management system structure of the present invention.

[0016] Figure 3 This is a schematic diagram of the condensation chamber structure of the present invention.

[0017] Figure 4 It is a structural schematic diagram of the light-transmitting plate of the present invention.

[0018] Figure 5 This is a structural schematic diagram of the magnet sliding frame of the present invention.

[0019] Figure 6 It is a structural schematic diagram of the light-shielding ring of the present invention.

[0020] Figure 7 It is a structural schematic diagram of the light shielding plate of the present invention.

[0021] Figure 8 This is a diagram of the lens installation position of the present invention.

[0022] Figure 9 This is a schematic diagram of the reflective sheet support structure of the present invention.

[0023] Figure 10 For the present invention Figure 9 Schematic diagram of the structure at point A in the middle.

[0024] In the figure: 101-heat absorption chamber; 102-first condenser; 103-second condenser; 104-water pump; 105-evaporation chamber; 106-heat sink; 107-condensation chamber; 201-LED light source; 202-support rod; 203-shading plate; 204-side shading plate; 205-light-transmitting plate; 206-shading ring; 207-reflector bracket; 2071-movable rectangular hole; 2072-static limit chamfer; 208-rope; 209-reflector; 2091-torsion spring; 2092-dynamic limit chamfer; 210-magnet; 211-lens; 212-magnet sliding frame; 2121-sliding groove; 213-electromagnet; 3-sliding frame support plate; 4-housing. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-10 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0026] The present invention provides an LED lighting control module for a front combination lamp of an automobile. A lighting assembly is fixedly installed in a housing 4. The lighting assembly includes a support rod 202. An LED illuminator 201 and a light shielding plate 203 are fixedly installed on the support rod 202. There is a gap between the LED illuminator 201 and the light shielding plate 203. A reflector bracket 207 arranged at an angle of 452091 degrees is fixedly installed on the light shielding plate 203, and a light-transmitting plate 205 is arranged perpendicular to the upper surface of the light shielding plate 203. A plurality of movable rectangular holes 2071 arranged in a rectangular array are opened on the reflector bracket 207. A reflector 209 is rotatably installed on one side of each movable rectangular hole 2071 via a torsion spring 2091. A static limiting chamfer 2072 is provided on the other side of the movable rectangular hole 2071. The reflector 209 is provided with a fixed portion 2071 that is aligned with the static limiting chamfer. The dynamic limiting chamfer 2092 that overlaps with 2072 is used to limit the swing angle of the reflector 209; the shading sheet 203 is provided with a rectangular array of through holes with the same number as the movable rectangular hole 2071, and each through hole is equipped with a lens 211 for focusing the light emitted by the LED light-emitting body 201 onto the reflector 209. The upper surface of the shading sheet 203 is also fixedly mounted with a shading ring 206 with the same position and number as each lens 211; each reflector 209 is fixedly mounted with a rope 208, and each rope 208 is fixedly mounted with a magnet 210 at one end away from the reflector 209, and each magnet 210 is slidably mounted on a corresponding magnet sliding frame 212, and the magnet sliding frame 212 is fixedly mounted with an electromagnet 213 that magnetically cooperates with the magnet 210 at one end away from the reflector 209. The light-transmitting plate 205 and the reflector support 207 are fixedly connected at their top ends, with the angle between them set at 452091°. Two side shielding plates 204 are fixedly mounted on each end of the light-transmitting plate 205. The light-transmitting plate 205 is provided with a rectangular array of through-holes, the same number of which communicates with the movable rectangular holes 2071, for transmitting light reflected from the reflector 209. The magnet slides 212 are provided with sliding grooves 2121, which facilitate the sliding of the magnets 210 on the magnet slides 212. All magnet slides 212 are fixedly mounted on the slide support plate 3, which is fixedly mounted within the housing 4.

[0027] The thermal management system for controlling the temperature of the LED light-emitting body 201 includes a heat absorption chamber 101 and an evaporation chamber 105. The heat absorption chamber 101 and the LED light-emitting body 201 are bonded together, and thermal grease is applied between the bonding surfaces. The heat absorption chamber 101 and the evaporation chamber 105 are fixedly connected to the housing 4. The water inlet of the heat absorption chamber 101 and the drain outlet of the evaporation chamber 105 are connected through a second condenser pipe 103, and a water pump 104 is arranged in series on the second condenser pipe 103. The drain outlet of the heat absorption chamber 101 and the water inlet of the evaporation chamber 105 are connected through a first condenser pipe 102. At least 10 condensation chambers 107 are fixedly installed on the upper surface of the evaporation chamber 105. Each condensation chamber 107 is hollow and connected to the interior of the evaporation chamber 105. A number of heat sinks 106 are arranged vertically on all condensation chambers 107, and heat dissipation modules are rotatably mounted on the sides of all heat sinks 106. The heat absorption chamber 101 and the evaporation chamber 105 are filled with cooling liquid, and the liquid level of the cooling liquid shall not be higher than the upper surface height of the evaporation chamber 105, and the heat absorption chamber 101, the evaporation chamber 105 and the condensation chamber 107 are set at a negative pressure.

[0028] The working principle of the LED lighting control module for automotive front combination lamps disclosed in the present invention is as follows: the LED light-emitting body 201 is started, the light emitted by the LED light-emitting body 201 passes through the lens 211, and then the light is focused on the lower surface of the reflector 209. The reflector 209 reflects the light in a direction parallel to the upper surface of the LED light-emitting body 201, irradiating the light to the desired position. When the binocular camera of the car recognizes that the back-illuminated object is an oncoming vehicle or person, the system controls the corresponding electromagnet 213 to work. The operation of the electromagnet 213 will attract the magnet 210 to move toward the electromagnet 213. The movement of the magnet 210 will pull the reflector 209 to rotate around the torsion spring 2091 through the rope 208. At this time, the dynamic limit chamfer 2092 and the static limit chamfer 2072 are separated. At this time, the reflector 209 will rotate from the original 452091° initial position to a position greater than 90°, allowing the light emitted by the LED light source 201 to directly pass through the movable rectangular hole 2071 without being reflected by the lower surface of the reflector 209. Therefore, it will not be reflected in a direction parallel to the upper surface of the LED light source 201, thereby avoiding oncoming vehicles and people and preventing interference with them. When there is no object at the location where lighting is required, the electromagnet 213 is in a power-off state, and the magnet 210 will reset. Since the torsion spring 2091 will drive the reflector 209 to swing to the position of 452091° (the position where the dynamic limit chamfer 2092 and the static limit chamfer 2072 fit together, which can reflect the position where the LED light source 201 emits light, that is, the default initial position), the reflector 209 pulls the magnet 210 to reset through the rope 208.

[0029] If the light-transmitting plate 205 can also be made of ordinary high-transmittance glass (without through-holes), the magnitude of the magnetic force generated by the electromagnet 213 can be controlled by adjusting the current flowing through the electromagnet 213, thereby attracting the magnet 210 to slide on the magnet slide 212. The magnetic attraction between the electromagnet 213 and the magnet 210 is equal to the torque applied to the torsion spring 2091 at the connection between the rope 208 and the reflector 209 (the force exerted at the connection between the rope 208 and the reflector 209 is equal to the force that overcomes the torsion spring 2091 to rotate the reflector 209). This allows the swing angle of the reflector 209 to be controlled, thereby controlling the angle of the irradiated light and achieving a wider illumination range. To ensure the lighting effect, the entire space within the housing 4, except for the heat sink 106 (i.e., the light transmission path), is kept at a vacuum negative pressure to reduce air interference with the light, thereby achieving a higher quality light source.

[0030] The water pump 104 is started, and the water pump 104 drives the coolant to circulate between the evaporation chamber 105 and the heat absorption chamber 101 (the coolant can be an electronic fluoride liquid). Since the pressure inside the evaporation chamber 105 is relatively low, the boiling point of the coolant inside it is low, which can absorb more heat. The heat emitted by the LED light-emitting body 201 will be absorbed by the heat absorption chamber 101, and the heat absorption chamber 101 transfers the heat to the coolant. Then the coolant evaporates due to the heat. The evaporated coolant moves upward and enters the condensation chamber 107. Since the condensation chamber 107 is provided with a heat sink 106 and a heat dissipation module, the heat dissipation module can dissipate heat from the heat sink 106 (and the heat sink 106 is also connected to the outside air. When the car is moving, the outside air will flow through the heat sink 106, which will also lower the temperature of the heat sink 106 and achieve the purpose of heat dissipation). Therefore, the temperature of the condensation chamber 107 is at a relatively low level, which causes the evaporated coolant to condense in the condensation chamber 107. The condensed coolant will flow back to the evaporation chamber 105 under the action of gravity and continue the cycle.

Claims

1. An automotive front combination lamp LED lighting control module, comprising a housing (4), characterized in that: A lighting assembly is fixedly mounted in the housing (4), the lighting assembly comprising a support rod (202), an LED illuminator (201) and a light shielding sheet (203) fixedly mounted on the support rod (202), a gap being present between the LED illuminator (201) and the light shielding sheet (203), a reflective sheet bracket (207) arranged at an angle of 45 (2091) degrees, and a light-transmitting plate (205) arranged perpendicular to the upper surface of the light shielding sheet (203), which is fixedly mounted on the reflective sheet. A plurality of movable rectangular holes (2071) arranged in a rectangular array are provided on the sheet support (207); a reflective sheet (209) is rotatably mounted on one side of each movable rectangular hole (2071) via a torsion spring (2091); a static limiting chamfer (2072) is provided on the other side of the movable rectangular hole (2071); and a dynamic limiting chamfer (2092) overlapped with the static limiting chamfer (2072) is provided on the reflective sheet (209) for limiting the swing angle of the reflective sheet (209); The light shielding sheet (203) is provided with through holes arranged in a rectangular array, the number of which is in communication with the movable rectangular holes (2071), and each through hole is provided with a lens (211) for focusing light emitted by the LED illuminator (201) onto the reflective sheet (209). The upper surface of the light shielding sheet (203) is also fixedly provided with light shielding rings (206) in the same position and number as each lens (211); A rope (208) is fixedly mounted on each reflective sheet (209), a magnet (210) is fixedly mounted on one end of each rope (208) away from the reflective sheet (209), each magnet (210) is slidably mounted on a corresponding magnet sliding frame (212), and an electromagnet (213) that is magnetically coupled with the magnet (210) is fixedly mounted on one end of the magnet sliding frame (212) away from the reflective sheet (209).

2. The automotive front combination lamp LED lighting control module according to claim 1, characterized in that: The light-transmitting plate (205) and the top end of the reflective sheet support (207) are fixedly connected, and the angle between the two is set at 45 (2091) degrees. Two side light-shielding plates (204) are fixedly mounted on both ends of the light-transmitting plate (205).

3. The automotive front combination lamp LED lighting control module according to claim 2, characterized in that: The light-transmitting plate (205) is provided with through holes arranged in a rectangular array, the same number of which is in communication with the movable rectangular holes (2071), for transmitting light reflected by the reflective sheet (209).

4. The automotive front combination lamp LED lighting control module according to claim 3, characterized in that: The magnet sliding frame (212) is provided with a sliding groove (2121) to facilitate the magnet (210) to slide on the magnet sliding frame (212).

5. The automotive front combination lamp LED lighting control module according to claim 4, characterized in that: All the magnet sliding frames (212) are fixedly mounted on the sliding frame support plate (3), and the sliding frame support plate (3) is fixedly mounted in the housing (4).

6. The automotive front combination lamp LED lighting control module according to claim 5, characterized in that: The invention also includes a thermal management system for controlling the temperature of the LED light emitting body (201), the thermal management system including a heat absorption chamber (101) and an evaporation chamber (105), the heat absorption chamber (101) and the LED light emitting body (201) being bonded together, and thermal conductive silicone grease is applied between the bonding surfaces, and the heat absorption chamber (101) and the evaporation chamber (105) are fixedly connected to the housing (4).

7. The automotive front combination lamp LED lighting control module according to claim 6, characterized in that: The water inlet of the heat absorption chamber (101) and the water outlet of the evaporation chamber (105) are connected through a second condenser pipe (103), and a water pump (104) is arranged in series on the second condenser pipe (103). The water outlet of the heat absorption chamber (101) and the water inlet of the evaporation chamber (105) are connected through a first condenser pipe (102).

8. The automotive front combination lamp LED lighting control module according to claim 7, characterized in that: At least 10 condensation chambers (107) are fixedly mounted on the upper surface of the evaporation chamber (105), each condensation chamber (107) is hollow inside, and the condensation chamber (107) is connected to the inside of the evaporation chamber (105), and a plurality of heat sinks (106) are vertically arranged on all the condensation chambers (107).

9. The automotive front combination lamp LED lighting control module according to claim 8, characterized in that: The heat absorption chamber (101) and the evaporation chamber (105) are filled with cooling liquid, and the liquid level of the cooling liquid shall not be higher than the upper surface height of the evaporation chamber (105), and negative pressure is set inside the heat absorption chamber (101), the evaporation chamber (105) and the condensation chamber (107).

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