Anti-dazzling car lamp

Abstract

The anti-dazzling automobile lamp comprises an automobile lamp shell and a heat dissipation shell, a lamp bead, a convex lens and a reflection bowl are arranged in the automobile lamp shell, a transparent layer is further fixed to the inner side of the reflection bowl, a plurality of electrochromic layers are arranged on the transparent layer, and the electrochromic layers are arranged on the outer side of the reflection bowl. The symmetry axes of the sections of the electrochromic layers extend to intersect with the inner wall of the reflection bowl, the tangent lines of the intersection points of the symmetry axes of the electrochromic layers and the inner wall of the reflection bowl are perpendicular, and the bottom end points of the sections of the electrochromic layers and the top end points of the sections of the adjacent electrochromic layers are located on the same horizontal line. Control is carried out through circuit changes of the electrochromic layer, response is extremely rapid, the illumination intensity in the passing light state is remarkably improved, the safety of night driving is improved, and the automobile headlamp has market prospects and is suitable for application and popularization.

Description

Technical Field

[0001] The present application relates to the field of vehicle lamps, and in particular to an anti-glare vehicle lamp. Background Art

[0002] In the field of automotive lighting, anti-glare headlights usually use mechanical high and low beam adjustment, which blocks the reflective bowl through a mechanical structure flip baffle to achieve the switching of high and low beams. This method has many disadvantages.

[0003] For example, mechanical structures are usually more complex and have many parts, which not only increases the production and assembly costs, but is also prone to failure during long-term use, requiring frequent maintenance and repair. In addition, when switching between high and low beams, the light intensity of the low beam is reduced due to the baffle blocking the light, and the light intensity varies greatly.

[0004] When switching from high beam to low beam, drivers often experience a temporary loss of vision due to the sudden change in light intensity. The specific reason is that the pupil of the eye is similar to the aperture of a camera and automatically adjusts its size according to the light intensity. In a strong light environment, the pupil will shrink to reduce the amount of light entering the eye and protect the retina from strong light stimulation. When suddenly switching to low beam, the pupil needs to gradually expand to allow more light to enter the eye so that the surrounding environment can be seen clearly. However, the adjustment of the pupil is not completed instantly. This process usually takes a few seconds to more than ten seconds. Before the pupil has fully adapted to the new light intensity, the amount of light entering the eye is insufficient, resulting in unclear vision for the driver, which poses a major safety hazard when driving at night. In the low beam state, the light intensity is sometimes difficult to meet the driver's need for clear observation of the road conditions ahead when driving at high speeds, especially in situations such as meeting other vehicles. The existing low beam lighting effect is not good, affecting driving safety.

[0005] For this reason, a glare-proof vehicle lamp is proposed. Summary of the invention

[0006] The purpose of the present application is to solve the technical problems that the existing mechanical high and low beam switching mode has a complex structure, the light intensity is reduced after switching to low beam, and there is a hidden danger of night driving. Compared with the existing technology, an anti-glare headlight is provided, including a headlight housing and a heat dissipation housing, wherein a lamp bead and a convex lens and a reflective bowl matched with the lamp bead are arranged in the headlight housing, and a transparent layer in contact with the inner wall of the reflective bowl is also fixed on the inner side of the reflective bowl, and a plurality of groups of electrochromic layers are arranged on the transparent layer; The electrochromic layer close to the convex lens is arranged at one-half of the distance between the transparent layer and the convex lens, and the electrochromic layer away from the convex lens is arranged at three-quarters of the distance between the transparent layer and the convex lens. The symmetry axes of several cross-sections of the electrochromic layers extend to intersect with the inner wall of the reflective bowl, and the symmetry axes of the electrochromic layers are perpendicular to the tangent line at the intersection point of the inner wall of the reflective bowl. The bottom endpoint of the cross-section of the electrochromic layer and the top endpoint of the cross-section of the adjacent electrochromic layer are located on the same horizontal line.

[0007] Furthermore, the opening and closing of the electrochromic layer is controlled by light sensors arranged on the vehicle body, and the number of the light sensors is two groups, and the two groups of light sensors are respectively arranged at the height of the headlights and at the height of the driver's eyes.

[0008] Furthermore, the outer wall of the heat dissipation housing is provided with a plurality of external heat dissipation fins evenly arranged at equal angles, the lamp housing is provided with a main air duct corresponding to the external heat dissipation fins one by one, the heat dissipation housing is provided with a cavity, and the cavity is provided with a heat dissipation mechanism; A through groove is provided between the lamp housing and the heat dissipation housing, a circuit board matching with the lamp beads is provided in the through groove, an assembly groove is provided on the circuit board, the heat dissipation mechanism includes a heat-conducting strip, the heat-conducting strip is wrapped and sleeved in the assembly groove, a sealing end cover for sealing the through groove is fixed to the outer side of the heat-conducting strip, a heat-conducting box is fastened with a snap on the side of the sealing end cover away from the through groove, the heat-conducting box is used to cover the end of the circuit board, and the heat dissipation housing is also provided with a wiring terminal for supplying power to the lamp beads. Furthermore, the input end of the main air duct is arranged on the forward side of the vehicle, the output end of the main air duct is arranged at the external cooling fins, and an air guide plate is fixed on the heat dissipation shell, and the air guide plate is arranged on one side of the output end of the main air duct.

[0009] Furthermore, the heat dissipation mechanism further comprises a plurality of inner heat dissipation fins arranged evenly at equal angles, a heat conductive pad corresponding to the outer wall of the heat conductive box is provided in the middle of the plurality of inner heat dissipation fins, the inner heat dissipation fins are arranged in the cavity of the heat dissipation housing, and a through slot is provided between adjacent outer heat dissipation fins, and an end of the inner heat dissipation fin away from the heat conductive pad passes through the through slot and extends to one side of the outer wall of the heat dissipation housing; An air intake control mechanism for introducing external air into the cavity inside the heat dissipation shell is arranged on a side of the heat dissipation shell away from the lamp shell.

[0010] Further, the air intake control mechanism comprises a frustum cover, a rotating shaft is fixed to one end of the frustum cover, a connecting column corresponding to the air intake control mechanism is provided at the end of the heat dissipation housing, a rotating groove matching the rotating shaft is provided in the middle of the connecting column, a plurality of spiral grooves evenly arranged at equal angles are provided on the outer wall of the rotating shaft, and a ball matching the spiral groove is provided in the rotating groove; A conical filter screen is provided at the other end of the frustum cover, a tension spring is clamped between the conical filter screen and the heat dissipation housing, a driving mechanism for driving the frustum cover to move away from the heat dissipation housing is also provided in the connecting column, a plurality of outer holes evenly arranged at equal angles are also provided between the conical filter screen and the rotating shaft, and an inner hole corresponding to the outer hole is provided on the connecting column; The heat dissipation housing is also provided with a side air duct on one side of the output end of the main air duct.

[0011] Furthermore, the tension spring has an elastic force that drives the frustum cover to approach the connecting column, and when the tension spring is in a free state, the outer hole and the inner hole are staggered and closed; The angle between the output end direction of the main air duct and the output end direction of the side air duct is set at an acute angle.

[0012] Furthermore, the driving mechanism includes an expansion bladder ring arranged in the connecting column, the expansion bladder ring is filled with thermal expansion particles, and a plurality of heat-conducting rods are also provided on the side of the expansion bladder ring away from the frustum cover. One end of the plurality of heat-conducting rods away from the expansion bladder ring extends into the cavity of the heat dissipation shell and is fixed with a heat-conducting ring, and the heat-conducting ring is in conflict with the end of the inner heat dissipation fin.

[0013] Furthermore, the heat dissipation shell is also provided with an air intake grille that cooperates with the conical filter screen, a fixing ring is fixed on one side of the air intake grille, and a plurality of spring pieces are evenly fixed at equal angles on one side of the fixing ring, the spring pieces have elastic force close to the conical filter screen, and a cleaning brush is fixed on the end of the spring piece away from the fixing ring.

[0014] Furthermore, the input end of the air intake grille is connected to a three-way valve, and the three-way valve has two groups of input ends, and the two groups of input ends are respectively connected to the outside and the output end of the automobile air conditioner.

[0015] Compared with the prior art, the advantages of this application are: Compared with the traditional mechanical high and low beam adjustment method, the present invention controls through the circuit changes of the electrochromic layer, has an extremely fast response, and can switch between transparent and silver states in an instant, quickly meeting the vehicle's needs for high and low beams in different driving scenarios.

[0016] Without increasing the power of the lamp, the present invention significantly improves the light intensity in the low beam state through a unique electrochromic layer design, solves the problem that the driver cannot clearly observe the road conditions in front of the vehicle due to insufficient low beam light intensity when meeting other vehicles at high speeds at night, significantly improves the safety of nighttime driving, has market prospects, and is suitable for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the explosion structure of this application; Figure 3 This is a schematic diagram of the internal structure of this application; Figure 4 This is a schematic diagram of the reflective bowl range when the electrochromic layer proposed in this application is not turned on; Figure 5 A schematic diagram of the reflective bowl range when the electrochromic layer proposed in this application is turned on; Figure 6 for Figure 5 The enlarged structural diagram of the middle A part; Figure 7 A schematic diagram of the distribution of the electrochromic layer proposed in this application; Figure 8 This is a schematic diagram of the front cross-sectional structure of the present application; Fig. 9 for Figure 8 A schematic diagram of the enlarged structure of the middle B part; Fig.10 It is a schematic diagram of the exploded structure of the heat dissipation mechanism proposed in this application; Fig.11 It is a schematic diagram of the cross-sectional structure of the heat dissipation housing proposed in this application; Fig.12 for Fig.11 The enlarged structural diagram of the middle C part; Fig.13 It is a structural schematic diagram of the air intake control mechanism proposed in this application; Fig.14 It is a schematic diagram of the explosion structure of the air intake control mechanism proposed in this application; Fig.15 A schematic diagram of gas flow when the air intake control mechanism proposed in this application is closed; Fig.16 This is a schematic diagram of the gas flow direction when the intake control mechanism proposed in this application is turned on.

[0018] Description of the numbers in the figure: 1. Lamp housing; 11. Main air duct; 111. Side air duct; 2. Heat dissipation housing; 201. Air guide plate; 21. External heat dissipation fins; 22. Through slot; 23. Through slot; 24. Air intake grille; 25. Terminal block; 26. Connecting column; 261. Inner hole; 262. Rotating slot; 27. Tension spring; 3. Convex lens; 31. Assembly ring; 4. Transparent layer; 41. Electrochromic layer; 5. Reflection bowl; 6. Lamp beads; 61. Circuit Plate; 611, assembly groove; 7, heat dissipation mechanism; 71, inner heat dissipation fin; 711, thermal pad; 72, thermal strip; 73, sealing end cover; 74, thermal box; 8, air intake control mechanism; 81, expansion bag ring; 82, thermal rod; 821, thermal ring; 83, frustum cover; 831, rotating shaft; 832, spiral groove; 834, outer hole; 835, conical filter; 84, fixing ring; 841, spring; 842, cleaning brush. DETAILED DESCRIPTION

[0019] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0020] Example: The present invention provides an anti-glare vehicle lamp, see Figure 1 - Fig.16 , comprising a lamp housing 1 and a heat dissipation housing 2, wherein a lamp bead 6, a convex lens 3 and a reflective bowl 5 matched with the lamp bead 6 are arranged in the lamp housing 1, the convex lens 3 is fixed to the end of the lamp housing 1 through an assembly ring 31, and a transparent layer 4 in contact with the inner wall of the reflective bowl 5 is also fixed inside the reflective bowl 5, and a plurality of groups of electrochromic layers 41 are arranged on the transparent layer 4, Specifically, in the present embodiment, the electrochromic layer 41 is an electrochromic material made of tungsten oxide; when no electric field is applied, the electrochromic layer 41 absorbs less visible light and is nearly transparent. At this time, the electrochromic layer 41 will not cause obvious interference to the light reflected by the lamp beads 6 in the reflective bowl 5, thereby ensuring that the car lights can maintain good light transmittance and lighting intensity during normal lighting.

[0021] When a certain negative voltage is applied, lithium ions are embedded in the tungsten oxide lattice. As the amount of lithium ions embedded changes, the crystal structure and electronic state of the material change. At a specific embedding amount, the reflection properties of tungsten oxide to visible light are enhanced, and it can present a silver-like appearance and strongly reflect visible light. When the electric field is removed or the direction of the electric field is changed to allow lithium ions to escape, tungsten oxide returns to its initial transparent state.

[0022] See also Figure 4When the car lamp is used normally, the electrochromic layer 41 is in a transparent state, so it does not affect the reflection bowl 5 of the light of the lamp bead 6, ensuring the transparency intensity.

[0023] See also Figure 5 - Figure 6 When meeting other vehicles, the electrochromic layer 41 is energized and turns into silver. On the one hand, it blocks the light emitted from the upper half of the reflective bowl 5 and switches to the low beam state to prevent strong light from irritating the eyes of the driver of the oncoming vehicle. On the other hand, through the reflection of the silver electrochromic layer 41, part of the light blocked by the upper half of the reflective bowl 5 is re-irradiated into the lower half of the reflective bowl 5, thereby increasing the intensity of the low beam without increasing the power, thereby avoiding the phenomenon that the driver cannot effectively observe the vehicle in front due to the reduced light intensity of the low beam when meeting other vehicles at high speed.

[0024] For details, please refer to Figure 7 In the present embodiment, in order to avoid that the reflective bowl 5 has no effective reflection path after the electrochromic layer 41 is activated, the electrochromic layer 41 closest to the convex lens 3 among the several electrochromic layers 41 is located at one-half of the distance between the transparent layer 4 and the convex lens 3, thereby allowing the lower half of the reflective bowl 5 to reflect light, and the electrochromic layer 41 farthest from the convex lens 3 among the several electrochromic layers 41 is located at three-quarters of the distance between the transparent layer 4 and the convex lens 3. In order to avoid light leakage in the upper half of the reflective bowl 5 after the electrochromic layer 41 is activated, the symmetry axes of the cross sections of the several electrochromic layers 41 extend to intersect with the inner wall of the reflective bowl 5, and the symmetry axes of the electrochromic layer 41 are perpendicular to the tangent at the intersection point of the inner wall of the reflective bowl 5, the tangent point of the tangent here coincides with the intersection point of the symmetry axis and the inner wall of the reflective bowl 5, and the bottom endpoint of the cross section of the electrochromic layer 41 and the top endpoint of the cross section of the adjacent electrochromic layer 41 are located on the same horizontal line.

[0025] It should be noted that the opening and closing of the electrochromic layer 41 is controlled by light sensors arranged on the vehicle body. There are two groups of light sensors, which are respectively arranged at the height of the headlights and at the height of the driver's eyes. When the two groups of light sensors simultaneously detect the strong light emitted by the oncoming vehicle, the electrochromic layer 41 is intermittently opened and closed, automatically achieving the purpose of switching between high and low beams, and reminding the oncoming vehicle to turn off the high beam. When the light sensor at the headlight detects strong light, namely the taillights and headlights of the vehicle in front, and the light sensor at the height of the driver's eyes does not detect strong light, that is, in the following vehicle state, the electrochromic layer 41 is automatically opened to prevent the vehicle in front from being irradiated with strong light. When the two groups of light sensors do not detect strong light at the same time, the electrochromic layer 41 is automatically closed to achieve automatic start of the high beam.

[0026] Compared with the traditional mechanical high and low beam adjustment method, the present application is controlled by the circuit changes of the electrochromic layer 41, has a simple structure, is sensitive to response, and can effectively improve the light intensity in the low beam state without increasing the power. When switching between high and low beams, there is no large difference in light intensity change, so that the driver can quickly adapt to the change in light intensity, and there will be no temporary loss of vision due to switching from strong light to low beam, thereby improving night driving safety.

[0027] For further information, see Figure 8 - Fig.16 In order to improve the heat dissipation efficiency of the lamp during operation and to extend the service life of the lamp, the outer wall of the heat dissipation housing 2 is provided with a plurality of external heat dissipation fins 21 evenly arranged at equal angles, the lamp housing 1 is provided with a main air duct 11 corresponding to the external heat dissipation fins 21 one by one, the heat dissipation housing 2 is provided with a cavity, and the cavity is provided with a heat dissipation mechanism 7; A through groove 23 is provided between the lamp housing 1 and the heat dissipation housing 2, and a circuit board 61 matching with the lamp bead 6 is provided in the through groove 23, and an assembly groove 611 is provided on the circuit board 61. The heat dissipation mechanism 7 includes a heat-conducting strip 72, and the heat-conducting strip 72 is wrapped and sleeved in the assembly groove 611. In order to improve the connection sealing between the lamp housing 1 and the heat dissipation housing 2, prevent the water vapor in the heat dissipation housing 2 from entering the lamp housing 1 through the through groove 23, and effectively improve the waterproof performance of the lamp bead 6, a sealing end cover 73 for sealing the through groove 23 is fixed on the outer side of the heat-conducting strip 72, and a heat-conducting box 74 is fastened on the side of the sealing end cover 73 away from the through groove 23 through a snap buckle. The heat-conducting box 74 is used to cover the end of the circuit board 61, and the heat dissipation housing 2 is also provided with a wiring terminal 25 for supplying power to the lamp bead 6. Specifically, the input end of the main air duct 11 is arranged on the forward side of the vehicle, and the wind force generated when the car is moving is used to output wind force to the main air duct 11. The output end of the main air duct 11 is arranged at the external heat dissipation fin 21. In order to increase the air outlet speed at the output end of the main air duct 11, an air guide plate 201 is also fixed on the heat dissipation shell 2. The air guide plate 201 is arranged on one side of the output end of the main air duct 11. The air guide plate 201 is used to reduce the cross-sectional area of ​​the output end of the main air duct 11, so as to increase the air outlet speed of the main air duct 11 and reduce the air outlet temperature, thereby improving the heat dissipation efficiency of the external heat dissipation fin 21.

[0028] For further information, see Figure 8 - Fig.10In order to improve the heat dissipation efficiency inside the heat dissipation housing 2, specifically to improve the heat dissipation effect of major heating components such as the lamp beads 6 and the circuit board 61, the heat dissipation mechanism 7 also includes a plurality of inner heat dissipation fins 71 evenly arranged at equal angles, and a thermal pad 711 corresponding to the outer wall of the heat conduction box 74 is provided in the middle of the plurality of inner heat dissipation fins 71. The inner heat dissipation fins 71 are arranged in the cavity of the heat dissipation housing 2, and a through slot 22 is provided between adjacent outer heat dissipation fins 21. One end of the inner heat dissipation fin 71 away from the thermal pad 711 passes through the through slot 22 and extends to one side of the outer wall of the heat dissipation housing 2; an air intake control mechanism 8 for introducing external air into the inner cavity of the heat dissipation housing 2 is provided on the side of the heat dissipation housing 2 away from the lamp housing 1.

[0029] See also Fig.11 - Fig.14 , wherein the air intake control mechanism 8 comprises a frustum cover 83, a rotating shaft 831 is fixed at one end of the frustum cover 83, a connecting column 26 corresponding to the air intake control mechanism 8 is provided at the end of the heat dissipation housing 2, a rotating groove 262 matching the rotating shaft 831 is provided in the middle of the connecting column 26, a plurality of spiral grooves 832 evenly arranged at equal angles are provided on the outer wall of the rotating shaft 831, and a ball matching the spiral groove 832 is provided in the rotating groove 262; A conical filter 835 is provided at the other end of the frustum cover 83, a tension spring 27 is clamped between the conical filter 835 and the heat dissipation housing 2, a driving mechanism for driving the frustum cover 83 to move away from the heat dissipation housing 2 is also provided in the connecting column 26, a plurality of outer holes 834 evenly arranged at equal angles are also provided between the conical filter 835 and the rotating shaft 831, and an inner hole 261 corresponding to the outer hole 834 is provided on the connecting column 26; The heat dissipation housing 2 is further provided with a side air duct 111 at one side of the output end of the main air duct 11 .

[0030] See also Fig.15 When the heat generated by the operation of the headlight is low, the main air duct 11 is mainly used to dissipate heat to the external heat dissipation fins 21 and the internal heat dissipation fins 71 extending to the outside of the heat dissipation shell 2, and then the heat dissipation shell 2 body and the inside of the heat dissipation shell 2 are cooled by air.

[0031] See also Fig.16 When the heat generated by the operation of the car lights is high, the air intake control mechanism 8 opens the connection between the inner cavity of the heat dissipation shell 2 and the external air. At this time, the wind force generated by the main air duct 11 passes through the connection node between the side air duct 111 and the main air duct 11. Since the wind speed at the main air duct 11 is high, according to the Bernoulli principle, the flow rate is high and the pressure is low. By utilizing the pressure difference between the main air duct 11 and the side air duct 111, the external cold air is sucked into the inner cavity of the heat dissipation shell 2 through the air intake control mechanism 8, and is discharged through the output end of the side air duct 111 after completing heat exchange with the internal heat dissipation fins 71, thereby further improving the heat dissipation efficiency of the internal heat dissipation fins 71.

[0032] See also Fig. 9 The tensioning spring 27 has an elastic force that drives the frustum cover 83 to approach the connecting column 26. When the tensioning spring 27 is in a free state, the outer hole 834 and the inner hole 261 are staggered and closed; the angle between the output end direction of the main air duct 11 and the output end direction of the side air duct 111 is set at an acute angle.

[0033] For further information, see Fig.11 - Fig.14 The driving mechanism includes an expansion capsule ring 81 disposed in the connecting column 26. The expansion capsule ring 81 is filled with heat expansion particles. Specifically, the heat expansion particles are heat expansion microspheres, which are made of thermoplastic polymer as a shell material and contain a low-boiling-point organic solvent. When heated, the internal material vaporizes and expands, increasing the volume of the microspheres. A plurality of heat-conducting rods 82 are also disposed on the side of the expansion capsule ring 81 away from the frustum cover 83. The ends of the plurality of heat-conducting rods 82 away from the expansion capsule ring 81 extend into the cavity of the heat dissipation housing 2 and are fixed with a heat-conducting ring 821. The heat-conducting ring 821 conflicts with the end of the inner heat dissipation fin 71.

[0034] The specific working principle of the air intake control mechanism 8 is that when the temperature of the inner cavity of the heat dissipation housing 2 is relatively low, the heat transferred from the inner heat dissipation fins 71 to the heat conduction ring 821 and the heat conduction rod 82 is small, and at this time the expansion bag ring 81 does not expand, and the frustum cover 83 uses the elastic force of the tension spring 27 to approach the connecting column 26, and uses the guidance of the spiral groove 832 and the ball to make the outer hole 834 and the inner hole 261 staggered and closed; When the temperature of the inner cavity of the heat dissipation shell 2 is relatively high, the heat transferred from the inner heat dissipation fin 71 to the heat conductive ring 821 and the heat conductive rod 82 is relatively large. At this time, the expansion bag ring 81 expands, and the frustum cover 83 overcomes the elastic force of the tensioning spring 27 and moves away from the connecting column 26 by the extrusion force generated by the expansion of the expansion bag ring 81. In this process, the frustum cover 83 is rotated as a whole by the guidance of the spiral groove 832 and the ball, so that the outer hole 834 coincides with the inner hole 261 and is in an open state. At this time, the side air duct 111 can absorb external air from the inner cavity of the heat dissipation shell 2 to dissipate heat to the inner heat dissipation fin 71.

[0035] Furthermore, the heat dissipation housing 2 is also provided with an air intake grille 24 that matches the conical filter 835. A fixing ring 84 is fixed on one side of the air intake grille 24. A plurality of spring pieces 841 are fixed at equal angles on one side of the fixing ring 84. The spring pieces 841 have elastic force close to the conical filter 835. A cleaning brush 842 is fixed on one end of the spring piece 841 away from the fixing ring 84. When the cone cover 83 approaches the connecting column 26 by the elastic force of the tensioning spring 27, the spring piece 841 adheres to the surface of the conical filter 835 by its own elastic force to seal and protect the surface of the conical filter 835. When the cone cover 83 expands by the expansion bag ring 81, the cone cover 83 expands by the expansion bag ring 81. When the extrusion force generated is displaced away from the connecting column 26, the cleaning brush 842 uses the elastic force of the spring piece 841 to fit on the surface of the conical filter 835, and in combination with the displacement of the conical cover 83, cleans the surface of the conical filter 835. Similarly, when the conical cover 83 is reset by the elastic force of the tensioning spring 27, the cleaning brush 842 is used again to clean the surface of the conical filter 835 for the second time. In the process of starting and resetting the conical cover 83, the cleaning brush 842 is used to self-clean the conical filter 835 to avoid clogging of the conical filter 835 and increase the service life of the conical filter 835.

[0036] It should be noted that, in the present embodiment, the input end of the air intake grille 24 is connected to a three-way valve, which has two sets of input ends, which are respectively connected to the outside and the output end of the automobile air conditioner. The input end of the three-way valve is controlled by a temperature sensor. Specifically, when the outside temperature is high, the input end of the three-way valve is connected to the output end of the automobile air conditioner. When the operating temperature of the headlight is high, the opening of the air intake control mechanism 8 allows the main air duct 11 to absorb cold air from the output end of the automobile air conditioner through the side air duct 111. When the cold air contacts the hotter inner heat sink fin 71, condensed water is generated, and the evaporation of the condensed water is used to efficiently dissipate the heat of the inner heat sink fin 71. At this time, the air intake control mechanism 8 uses the temperature change of the expansion bag ring 81 and the inner heat sink fin 71 to intermittently open the input end of the three-way valve, thereby reducing the consumption of cold air at the output end of the automobile air conditioner and improving the heat dissipation efficiency of the inner heat sink fin 71. Similarly, when the outside temperature is low, the input end of the three-way valve is connected to the outside world. When the operating temperature of the headlights is high, the air intake control mechanism 8 is opened, allowing the main air duct 11 to absorb cold air from the outside through the side air duct 111. When the cold air contacts the hotter inner cooling fins 71, condensed water is generated, and the evaporation of the condensed water is used to efficiently dissipate the heat of the inner cooling fins 71. At this time, the air intake control mechanism 8 uses the temperature changes of the expansion bag ring 81 and the inner cooling fins 71 to intermittently open the input end of the three-way valve to avoid the accumulation of condensed water in the inner cavity of the heat dissipation shell 2 and the freezing phenomenon under extreme conditions, thereby improving the operating effect of the air intake control mechanism 8 under low temperature conditions.

[0037] Compared with the traditional mechanical high and low beam adjustment method, the present invention controls the high and low beam by changing the circuit of the electrochromic layer 41, abandons the complex mechanical transmission components, and simplifies the structure of the lamp. It reduces the production and assembly costs of the lamp, and also reduces the repair and maintenance problems caused by mechanical failures. At the same time, the electrochromic layer 41 responds to the electric field very quickly, and can switch between transparent and silver states in an instant, quickly meeting the vehicle's needs for high and low beams in different driving scenarios.

[0038] Without increasing the power of the lamp, the present invention significantly improves the light intensity in the low beam state through the unique design of the electrochromic layer 41. When meeting other vehicles, the electrochromic layer 41 is powered on and turns silver. On the one hand, it effectively blocks the light emitted from the upper half of the reflective bowl 5 to prevent the driver of the oncoming vehicle from being stimulated by strong light and ensure driving safety; on the other hand, through the reflection of the silver electrochromic layer 41, part of the light blocked in the upper half of the reflective bowl 5 is guided to the lower half of the reflective bowl 5 again, thereby greatly improving the intensity of the low beam illumination and reducing visual interference without changing the power of the lamp. This design effectively solves the problem that the driver cannot clearly observe the road conditions in front of the vehicle due to insufficient low beam illumination intensity when meeting other vehicles at high speed at night, and significantly improves the safety of night driving.

[0039] The above is only the best implementation method adopted by this application in combination with current actual needs, but the protection scope of this application is not limited to this.

Claims

1. An anti-glare vehicle lamp, comprising a vehicle lamp housing (1) and a heat dissipation housing (2), wherein a lamp bead (6) and a convex lens (3) and a reflective bowl (5) matched with the lamp bead (6) are arranged in the vehicle lamp housing (1), characterized in that: A transparent layer (4) in contact with the inner wall of the reflective bowl (5) is also fixed to the inner side of the reflective bowl (5), and a plurality of groups of electrochromic layers (41) are provided on the transparent layer (4); The electrochromic layer (41) close to the convex lens (3) is arranged at one-half of the distance between the transparent layer (4) and the convex lens (3), and the electrochromic layer (41) away from the convex lens (3) is arranged at three-quarters of the distance between the transparent layer (4) and the convex lens (3). The symmetry axes of the cross sections of several electrochromic layers (41) extend to intersect with the inner wall of the reflective bowl (5), and the symmetry axes of the electrochromic layers (41) are perpendicular to the tangent line at the intersection point of the inner wall of the reflective bowl (5). The bottom endpoint of the cross section of the electrochromic layer (41) and the top endpoint of the cross section of the adjacent electrochromic layer (41) are located on the same horizontal line.

2. The anti-glare vehicle lamp according to claim 1, characterized in that: The opening and closing of the electrochromic layer (41) is controlled by light sensors arranged on the vehicle body, and the light sensors are in two groups, which are arranged at the height of the vehicle lights and at the height of the driver's eyes, respectively.

3. The anti-glare vehicle lamp according to claim 1, characterized in that: The outer wall of the heat dissipation housing (2) is provided with a plurality of external heat dissipation fins (21) arranged evenly at equal angles; the interior of the vehicle lamp housing (1) is provided with main air ducts (11) corresponding one to one to the external heat dissipation fins (21); the interior of the heat dissipation housing (2) is provided with a cavity; and the cavity is provided with a heat dissipation mechanism (7); A through groove (23) is provided between the vehicle lamp housing (1) and the heat dissipation housing (2); a circuit board (61) matching with the lamp bead (6) is provided in the through groove (23); an assembly groove (611) is provided on the circuit board (61); the heat dissipation mechanism (7) comprises a heat conducting strip (72); the heat conducting strip (72) is sheathed in the assembly groove (611); a sealing end cover (73) for sealing the through groove (23) is fixed to the outside of the heat conducting strip (72); a heat conducting box (74) is fastened to the side of the sealing end cover (73) away from the through groove (23) by means of a buckle; the heat conducting box (74) is used to sheath the end of the circuit board (61); and a wiring terminal (25) for supplying power to the lamp bead (6) is also provided on the heat dissipation housing (2).

4. The anti-glare vehicle lamp according to claim 3, characterized in that: The input end of the main air duct (11) is arranged on the forward side of the vehicle, the output end of the main air duct (11) is arranged at the external heat dissipation fin (21), and an air guide plate (201) is also fixed on the heat dissipation housing (2), and the air guide plate (201) is arranged on one side of the output end of the main air duct (11).

5. The anti-glare vehicle lamp according to claim 3, characterized in that: The heat dissipation mechanism (7) further comprises a plurality of inner heat dissipation fins (71) arranged evenly at equal angles, a heat conductive pad (711) corresponding to the outer wall of the heat conductive box (74) is provided in the middle of the plurality of inner heat dissipation fins (71), the inner heat dissipation fins (71) are arranged in the cavity of the heat dissipation housing (2), a through slot (22) is provided between adjacent outer heat dissipation fins (21), and an end of the inner heat dissipation fin (71) away from the heat conductive pad (711) passes through the through slot (22) and extends to a side of the outer wall of the heat dissipation housing (2); An air intake control mechanism (8) for introducing external air into the inner cavity of the heat dissipation housing (2) is provided on a side of the heat dissipation housing (2) away from the vehicle lamp housing (1).

6. The anti-glare vehicle lamp according to claim 5, characterized in that: The air intake control mechanism (8) comprises a cone cover (83), a rotating shaft (831) being fixed to one end of the cone cover (83), a connecting column (26) corresponding to the air intake control mechanism (8) being provided at the end of the heat dissipation housing (2), a rotating groove (262) matching the rotating shaft (831) being provided at the middle of the connecting column (26), a plurality of spiral grooves (832) evenly arranged at equal angles being provided on the outer wall of the rotating shaft (831), and a ball matching the spiral groove (832) being provided in the rotating groove (262); A conical filter screen (835) is provided at the other end of the conical cover (83), a tension spring (27) is clamped between the conical filter screen (835) and the heat dissipation housing (2), a driving mechanism for driving the conical cover (83) to move away from the heat dissipation housing (2) is also provided in the connecting column (26), a plurality of outer holes (834) evenly spaced at equal angles are also provided between the conical filter screen (835) and the rotating shaft (831), and an inner hole (261) corresponding to the outer hole (834) is provided on the connecting column (26); The heat dissipation housing (2) is further provided with a side air duct (111) on one side of the output end of the main air duct (11).

7. The anti-glare vehicle lamp according to claim 6, characterized in that: The tension spring (27) has an elastic force that drives the frustum cover (83) to approach the connecting column (26); when the tension spring (27) is in a free state, the outer hole (834) and the inner hole (261) are staggered to form a closed state; The angle between the direction of the output end of the main air duct (11) and the direction of the output end of the side air duct (111) is set at an acute angle.

8. The anti-glare vehicle lamp according to claim 6, characterized in that: The driving mechanism comprises an expansion bladder ring (81) arranged in the connecting column (26), the expansion bladder ring (81) being filled with heat expansion particles, a plurality of heat-conducting rods (82) being arranged on a side of the expansion bladder ring (81) away from the frustum cover (83), one end of the plurality of heat-conducting rods (82) away from the expansion bladder ring (81) extending into the cavity of the heat dissipation housing (2) and being fixed with a heat-conducting ring (821), the heat-conducting ring (821) being in contact with the end of the inner heat dissipation fin (71).

9. The anti-glare vehicle lamp according to claim 6, characterized in that: The heat dissipation housing (2) is also provided with an air intake grille (24) that matches the conical filter screen (835); a fixing ring (84) is fixed to one side of the air intake grille (24); a plurality of spring pieces (841) are fixed to one side of the fixing ring (84) at equal angles; the spring pieces (841) have an elastic force that is close to the conical filter screen (835); and a cleaning brush (842) is fixed to one end of the spring piece (841) that is away from the fixing ring (84).

10. The anti-glare vehicle lamp according to claim 9, characterized in that: The input end of the air intake grille (24) is connected to a three-way valve, the three-way valve has two sets of input ends, and the two sets of input ends are respectively connected to the outside world and the output end of the automobile air conditioner.

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