Automobile headlamp lens assembly with adjustable irradiation range

Abstract

The invention discloses an automobile headlamp lens assembly with an adjustable irradiation range, and relates to the technical field of automobile headlamps. A dynamic adjusting technology is adopted, stepless irradiation range adjustment is achieved through a rotating system controlled by an electromagnet, and the optimal illumination effect can be provided according to different driving environments. Meanwhile, the innovative heat dissipation turbine design effectively solves the heat dissipation problem of the light emitting body, and it is ensured that the lamp keeps stable working temperature in long-time use. According to the automobile headlamp lens assembly, optics and machinery are combined, the automobile headlamp lens assembly which is efficient, reliable and wide in adaptability is provided, and the driving safety and the durability of a lamp are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile headlights, in particular to an automobile headlight lens assembly with an adjustable irradiation range. Background Art

[0002] At present, the common automotive headlight lens technology on the market mostly adopts a fixed illumination range design. Although it can meet basic lighting needs, it is difficult to provide highly adaptable illumination range adjustment under complex road conditions and environments. Traditional headlight lenses can usually only preset a fixed focal length and illumination angle (light diffusion angle) during design, and cannot be dynamically adjusted according to different driving environments (such as highways, urban roads or curves). With the increase in night driving needs and the development of automotive lighting technology, the fixedness of traditional headlight lenses seems to be increasingly inconsistent with the needs of modern transportation. In addition, the heat dissipation design in the existing technology also has certain shortcomings. The heat dissipation devices used in many models do not fully consider the relationship between efficient heat dissipation and cooling air flow, resulting in the lamps being overheated during long-term use, thereby affecting the service life of the lamps and the stability of light output. These problems are particularly evident in high-power LED headlights, because LED lamps generate a lot of heat when working at high brightness. If the heat dissipation is not timely, the temperature of the lamps will be too high, affecting the lighting effect and possibly causing safety hazards. Summary of the invention

[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: a car headlight lens assembly with an adjustable illumination range, comprising a light-emitting body, a heat dissipation turbine fixedly arranged on the back of the light-emitting body for absorbing the heat generated during the operation of the light-emitting body; the light emitted by the light-emitting body is collimated by a collimating lens and then passes through a switching component, the light passes through a terminal convex lens through the switching component, and the light passes through the terminal convex lens and is reflected on a reflector to a desired position direction, wherein the reflector and a symmetry plane in a thickness direction of the terminal convex lens form an angle of forty-five degrees, wherein the symmetry plane in a thickness direction of the terminal convex lens is parallel to a horizontal plane; a protective cover is fixedly mounted on the heat dissipation turbine, the light-emitting body is arranged on the inner side of the protective cover, and the protective cover is used to protect the light-emitting body; the terminal convex lens is fixed on a top rotating cover, and the top rotating cover is coaxially fixed on a bottom rotating cover, wherein the switching component is arranged on the inner wall of the bottom rotating cover.

[0004] Preferably, the switching assembly includes an outer light-transmitting cover, which is fixedly matched with the inner wall of the bottom rotating cover, and the inner light-transmitting cover is fixed to the axial position inside the outer light-transmitting cover by a supporting paddle, and a sliding piston ring is provided for sliding sealing between the circumferential surface of the inner light-transmitting cover and the inner wall of the outer light-transmitting cover, and the sliding piston ring is in contact with the supporting paddle.

[0005] Preferably, an elastic transparent sheet is sealed and fixed to the top edge of the outer light-transmitting cover, and the outer light-transmitting cover, the elastic transparent sheet, the inner light-transmitting cover and the sliding piston ring form a closed space, in which distilled water is provided, and a temperature sensor is provided on the inner wall of the outer light-transmitting cover.

[0006] Preferably, the collimating lens is fixedly mounted on the top edge of the bottom rotating cover through a collimating lens mounting plate, and the collimating lens is coaxially arranged with the end convex lens, wherein the protective cover and the collimating lens mounting plate are coaxially rotated in cooperation; three counterweight slider support slide bars are fixed on the inner wall of the bottom rotating cover along its own radial circular array, and a counterweight slider is slidably sleeved on each counterweight slider support slide bar, and a return spring is surrounded on each counterweight slider support slide bar, and both ends of the return spring are fixedly matched with the bottom rotating cover and the counterweight slider.

[0007] Preferably, the sliding piston ring is fixedly mounted with an extension frame having the same number as the counterweight slider supporting sliding rod, the bottom end of the extension frame is movably connected to the counterweight slider via a connecting rod, and the side of the extension frame is fixedly provided with a limiting swing plate, which contacts and cooperates with the connecting rod in the direction away from the inner wall of the bottom rotating cover, so as to prevent the connecting rod from swinging toward the axis of the bottom rotating cover.

[0008] Preferably, the bottom rotating cover is rotatably mounted on the top supporting seat, the top supporting seat is fixedly mounted on the partitioning breathable net, the circumferential surface of the partitioning breathable net is provided with a plurality of through hole grooves, the partitioning breathable net is fixedly mounted on the base, a through hole is opened at the center of the base, and a driving motor is suspended and fixed below the through hole.

[0009] Preferably, a limiting gear ring frame is rotatably arranged on the inner wall of the top support seat, three planetary gears are rotatably mounted on the limiting gear ring frame, an inner gear ring meshing with the three planetary gears is fixedly sleeved on the outer surface of the bottom rotating cover, a gear ring is rotatably arranged on the inner wall of the separating breathable net, and the gear ring and the inner gear ring are meshed and transmitted through the three planetary gears; an electromagnet is fixedly mounted on the outer surface of the top support seat and magnetically cooperates with the limiting gear ring frame.

[0010] Preferably, a paddle blade-supported rotating disk is rotatably mounted on the base, a plurality of through holes are provided at the center position of the paddle blade-supported rotating disk, and the center of the paddle blade-supported rotating disk is fixedly matched with the output shaft of the driving motor, and the output shaft of the driving motor is also fixedly matched with the heat dissipation turbine; a plurality of inclined paddle blades arranged in a circular equidistant array are fixedly mounted between the paddle blade-supported rotating disk and the gear ring.

[0011] Preferably, a protective baffle is fixedly mounted on the top of the top support seat, the reflector is fixedly mounted on the protective baffle, and a sealing light-transmitting plate is also provided on the protective baffle, and the sealing light-transmitting plate is used to seal the internal space of the protective baffle.

[0012] Compared with the prior art, the present invention has the following advantages: (1) The automobile headlight lens assembly of the present invention realizes the function of stepless dynamic adjustment of the illumination range through the rotation system controlled by the electromagnet. When the driver needs a wider or narrower illumination range, the gear mechanism is adjusted by adjusting the magnetic force of the electromagnet, thereby adjusting the focal length of the terminal convex lens. In this way, the driver can obtain the most suitable illumination range in different driving environments (such as highways or city streets), thereby increasing driving safety; (2) The heat dissipation system of the heat dissipation turbine and the drive motor combination of the present invention can effectively dissipate heat when the light source is working. Through the combined action of air flow and centrifugal force, the heat dissipation turbine can accelerate air circulation, thereby ensuring that the light source will not fail due to excessive temperature. This design significantly improves the working efficiency and service life of the lamp, especially under the condition of long-term high-brightness illumination; (3) The light source and related components of the present invention are fully protected by a protective cover to effectively avoid the influence of the external environment, especially under extreme weather conditions. The protective cover can ensure that the light source is not damaged by dust, moisture or collision, thereby improving the service life and stability of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the reflector of the present invention.

[0014] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 3 It is a schematic diagram of the structure of the top support seat of the present invention.

[0016] Figure 4 It is a schematic diagram of the heat dissipation turbine structure of the present invention.

[0017] Figure 5 It is a schematic diagram of the structure of the top rotating cover of the present invention.

[0018] Figure 6 It is a schematic diagram of the structure of the switching component of the present invention.

[0019] Figure 7 for Figure 6 Schematic diagram of the structure at point A in the middle.

[0020] In the figure: 101-protective baffle; 102-reflector; 103-sealed light-transmitting plate; 104-top support seat; 105-electromagnet; 106-separation air-permeable net; 107-base; 108-drive motor; 109-limiting gear ring frame; 110-gear ring; 111-planetary gear; 112-tilted paddle blades; 113-paddle blades supporting rotating disk; 114-heat dissipation turbine; 115-inner gear ring; 116-protective cover; 117-bottom Rotating cover; 118-top rotating cover; 119-end convex lens; 120-illuminant; 121-collimating lens; 122-collimating lens mounting plate; 123-outer light-transmitting cover; 124-elastic transparent sheet; 125-inner light-transmitting cover; 126-supporting paddle; 127-sliding piston ring; 128-extension frame; 129-limiting swinging plate; 130-connecting rod; 131-counterweight slider; 132-reset spring; 133-counterweight slider supporting slide rod. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-Figure 7 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0022] The present invention provides an automobile headlight lens assembly with an adjustable irradiation range, comprising a light emitting body 120, a heat dissipation turbine 114 fixedly arranged on the back of the light emitting body 120, and used for absorbing the heat generated during the operation of the light emitting body 120; the light emitted by the light emitting body 120 is collimated by a collimating lens 121 and then penetrates a switching component, the light penetrates a terminal convex lens 119 through the switching component, and the light is reflected on a reflector 102 to a desired position direction after passing through the terminal convex lens 119, wherein the reflector 102 and the symmetry plane of the terminal convex lens 119 in the thickness direction form an angle of forty-five degrees, wherein the symmetry plane of the terminal convex lens 119 in the thickness direction is parallel to the horizontal plane; a protective cover 116 is fixedly installed on the heat dissipation turbine 114, the light emitting body 120 is arranged on the inner side of the protective cover 116, and the protective cover 116 is used for protecting the light emitting body 120; the terminal convex lens 119 is fixed on a top rotating cover 118, the top rotating cover 118 is coaxially fixed on a bottom rotating cover 117, wherein the switching component is arranged on the inner wall of the bottom rotating cover 117.

[0023] The switching assembly includes an outer light-transmitting cover 123, which is fixedly matched with the inner wall of the bottom rotating cover 117. An inner light-transmitting cover 125 is fixed in the air at the axis position inside the outer light-transmitting cover 123 through a supporting paddle 126. A sliding piston ring 127 is provided between the circumferential surface of the inner light-transmitting cover 125 and the inner wall of the outer light-transmitting cover 123 for sliding sealing. The sliding piston ring 127 is in contact with the supporting paddle 126. An elastic transparent sheet 124 is sealed and fixed to the top edge of the outer light-transmitting cover 123. The outer light-transmitting cover 123, the elastic transparent sheet 124, the inner light-transmitting cover 125 and the sliding piston ring 127 form a closed space. Distilled water is provided in the closed space. A temperature sensor is provided on the inner wall of the outer light-transmitting cover 123 for adjusting the rotation speed of the outer light-transmitting cover 123 (actually controlling the magnetic force of the electromagnet 105) according to the ambient temperature.

[0024] The collimating lens 121 is fixedly mounted on the top edge of the bottom rotating cover 117 through the collimating lens mounting plate 122. The collimating lens 121 is coaxially arranged with the end convex lens 119, wherein the protective cover 116 is coaxially rotated with the collimating lens mounting plate 122; three counterweight slider support slide bars 133 are fixed on the inner wall of the bottom rotating cover 117 along its own radial circular array, and each counterweight slider support slide bar 133 is slidably sleeved with a counterweight slider 131, and each counterweight slider support slide bar 133 is surrounded by a return spring 132, and both ends of the return spring 132 are fixedly matched with the bottom rotating cover 117 and the counterweight slider 131. The same number of extension frames 128 as the weight slider support slide rod 133 are fixedly mounted on the sliding piston ring 127, and the bottom end of the extension frame 128 is movably connected to the weight slider 131 through the connecting rod 130. The side of the extension frame 128 is fixedly provided with a limiting swing piece 129, which contacts and cooperates with the connecting rod 130 in the direction away from the inner wall of the bottom rotating cover 117 to prevent the connecting rod 130 from swinging in the direction of the axis of the bottom rotating cover 117. The bottom rotating cover 117 is rotatably mounted on the top support seat 104, and the top support seat 104 is fixedly mounted on the partitioning air-permeable net 106. The circumferential surface of the partitioning air-permeable net 106 is provided with a plurality of through-hole grooves. The partitioning air-permeable net 106 is fixedly mounted on the base 107, and a through-hole is opened at the center of the base 107. A driving motor 108 is fixed overhead below the through-hole. A limiting gear ring frame 109 is rotatably mounted on the inner wall of the top support seat 104, and three planetary gears 111 are rotatably mounted on the limiting gear ring frame 109. An inner gear ring 115 meshing with the three planetary gears 111 is fixedly sleeved on the outer surface of the bottom rotating cover 117, and a gear ring 110 is rotatably mounted on the inner wall of the separating breathable net 106. The gear ring 110 and the inner gear ring 115 are meshed and transmitted through the three planetary gears 111; an electromagnet 105 that magnetically cooperates with the limiting gear ring frame 109 is fixedly mounted on the outer surface of the top support seat 104. A paddle blade supporting rotating disk 113 is rotatably mounted on the base 107. A plurality of through holes are arranged at the center of the paddle blade supporting rotating disk 113. The center of the paddle blade supporting rotating disk 113 is fixedly matched with the output shaft of the driving motor 108. The output shaft of the driving motor 108 is also fixedly matched with the heat dissipation turbine 114. A plurality of inclined paddle blades 112 arranged in a circular equidistant array are fixedly mounted between the paddle blade supporting rotating disk 113 and the gear ring 110. A protective baffle 101 is fixedly mounted on the top of the top support seat 104. The reflector 102 is fixedly mounted on the protective baffle 101. The protective baffle 101 is also equipped with a sealing light-transmitting plate 103. The sealing light-transmitting plate 103 is used to seal the internal space of the protective baffle 101.

[0025] The working principle of a car headlight lens assembly with an adjustable irradiation range disclosed in the present invention is as follows: the light-emitting body 120 emits light and generates heat during operation, and the heat is transferred to the heat dissipation turbine 114. By starting the drive motor 108, the output shaft of the drive motor 108 drives the heat dissipation turbine 114, the paddle blade supporting rotating disk 113, and the inclined paddle blade 112 to rotate. The rotation of the heat dissipation turbine 114 drives the air to rotate, so that the air at the center position is under negative pressure. At this time, the external cold air will enter the heat dissipation turbine 114 through the center position of the base 107. The heat dissipation turbine 114 drives the air to rotate, and the air will rotate outward due to the centrifugal force. The air is discharged through the partitioning air-permeable net 106 under the centrifugal force and the tilting paddle blade 112 (the base 107 and the partitioning air-permeable net 106 need to be separated during installation, for example, the base 107 and the partitioning air-permeable net 106 are set in two relatively independent spaces to prevent the hot air flow from flowing back).

[0026] The relatively scattered light emitted by the illuminant 120 is collimated by the collimating lens 121 and then passes through the inner light-transmitting cover 125, the distilled water inside the outer light-transmitting cover 123, the elastic transparent sheet 124 (elastic), the terminal convex lens 119 in sequence, and finally reflected by the reflector 102 and passes through the sealed light-transmitting plate 103 (the sealed light-transmitting plate 103 can be installed as required) to the specified direction. In this process, the light will be focused by the terminal convex lens 119, and the light outside the focus will diverge outward, thereby obtaining a wider lighting range. When it is necessary to narrow the range of light, the electromagnet 105 is energized, and the magnetic force of the electromagnet 105 is controlled to adjust the magnetic attraction constraint force of the electromagnet 105 on the limiting gear ring frame 109 (when the tilting blade 112 rotates, the gear ring 110 will be driven to rotate). When the electromagnet 105 is not started, the limiting gear ring frame 109 is in a free rotation state (there is friction resistance between the bottom rotating cover 117 and the top support seat 104), so the planetary gear 111 on the limiting gear ring frame 109 is in a free rotation state. At this time, the power of the gear ring 110 will drive the planetary gear 111 to revolve and rotate, thereby releasing the power. When the revolution of the planetary gear 111 is restricted, the planetary gear 111 will drive the inner gear ring 115 to rotate. The rotation speed of the inner gear ring 115 depends on the size of the limiting force on the planetary gear 111, that is, the magnetic force of the electromagnet 105. The rotation of the inner gear ring 115 will drive the bottom rotating cover 117 rotates, the bottom rotating cover 117 rotates to drive the outer light-transmitting cover 123 to rotate, the supporting paddle 126 inside the outer light-transmitting cover 123 will drive the distilled water to rotate, and the distilled water will have a concave upper surface under the action of centrifugal force. At this time, the elastic transparent sheet 124 will also be concave along with the upper surface of the distilled water (the function of the elastic transparent sheet 124 is to prevent the distilled water from leaking out and to keep the distilled water surface from having ripples), and the water with the concave surface will enter the position between the outer light-transmitting cover 123 and the inner light-transmitting cover 125. At the same time, the counterweight slider 131 will also rotate along with the bottom rotating cover 117. The rotation of the counterweight slider 131 compresses the return spring 132 under the centrifugal force, and then the counterweight slider 131 drags the extension frame 128 to move downward through the connecting rod 130, and the extension frame 128 drives the sliding piston ring 127 to move downward, thereby making the internal space of the outer light-transmitting cover 123 larger to adapt to the concave upper surface of the elastic transparent sheet 124. At this time, the light passing through the collimating lens 121 will diffuse outward when passing through the distilled water, changing the incident angle of the light entering the terminal convex lens 119, and then changing the reflection angle of the light passing through the terminal convex lens 119. At this time, the focal position of the light behind the terminal convex lens 119 can be changed (at most it is parallel light, forming a beam of light with the smallest irradiation range), thereby adjusting the irradiation range of the light emitted by the device, thereby realizing stepless dynamic adjustment of the irradiation range.

Claims

1. An automobile headlight lens assembly with adjustable illumination range, characterized in that: The invention comprises a light emitting body (120), wherein a heat dissipation turbine (114) is fixedly arranged on the back of the light emitting body (120) for absorbing heat generated during the operation of the light emitting body (120); light emitted by the light emitting body (120) is collimated by a collimating lens (121) and then passes through a switching component, and the light passes through a terminal convex lens (119) through the switching component, and the light passes through the terminal convex lens (119) and is reflected on a reflector (102) to a desired position direction, wherein the reflector (102) and a symmetry plane in a thickness direction of the terminal convex lens (119) form an angle of forty-five degrees, and wherein the symmetry plane in a thickness direction of the terminal convex lens (119) is parallel to a horizontal plane; A protective cover (116) is fixedly mounted on the heat dissipation turbine (114); a light emitting body (120) is arranged on the inner side of the protective cover (116); and the protective cover (116) is used to protect the light emitting body (120); a terminal convex lens (119) is fixed on the top rotating cover (118); the top rotating cover (118) is coaxially fixed on the bottom rotating cover (117); and a switching component is arranged on the inner wall of the bottom rotating cover (117).

2. The automobile headlight lens assembly with adjustable illumination range according to claim 1, characterized in that: The switching assembly comprises an outer light-transmitting cover (123), the outer light-transmitting cover (123) is fixedly matched with the inner wall of the bottom rotating cover (117), an inner light-transmitting cover (125) is suspended and fixed at the axial position inside the outer light-transmitting cover (123) via a supporting paddle (126), a sliding piston ring (127) is provided between the circumferential surface of the inner light-transmitting cover (125) and the inner wall of the outer light-transmitting cover (123) for sliding sealing, and the sliding piston ring (127) is in contact with the supporting paddle (126).

3. The automobile headlight lens assembly with adjustable illumination range according to claim 2, characterized in that: An elastic transparent sheet (124) is sealed and fixed to the top edge of the outer light-transmitting cover (123); the outer light-transmitting cover (123), the elastic transparent sheet (124), the inner light-transmitting cover (125) and the sliding piston ring (127) form a closed space; distilled water is provided in the closed space; and a temperature sensor is provided on the inner wall of the outer light-transmitting cover (123).

4. The automobile headlight lens assembly with adjustable illumination range according to claim 3, characterized in that: The collimating lens (121) is fixedly mounted on the top edge of the bottom rotating cover (117) via a collimating lens mounting plate (122), the collimating lens (121) and the end convex lens (119) are coaxially arranged, wherein the protective cover (116) and the collimating lens mounting plate (122) are coaxially rotatably matched; three counterweight slider support slide bars (133) are fixed on the inner wall of the bottom rotating cover (117) along its own radial circular array, each counterweight slider support slide bar (133) is slidably sleeved with a counterweight slider (131), and each counterweight slider support slide bar (133) is surrounded by a return spring (132), and both ends of the return spring (132) are fixedly matched with the bottom rotating cover (117) and the counterweight slider (131).

5. The automobile headlight lens assembly with adjustable illumination range according to claim 4, characterized in that: The sliding piston ring (127) is fixedly mounted with an extension frame (128) having the same number as the counterweight slider support slide rod (133). The bottom end of the extension frame (128) is movably connected to the counterweight slider (131) via a connecting rod (130). A swing limiting plate (129) is fixedly mounted on the side of the extension frame (128). The swing limiting plate (129) is in contact with the connecting rod (130) in a direction away from the inner wall of the bottom rotating cover (117) to prevent the connecting rod (130) from swinging in the direction of the axis of the bottom rotating cover (117).

6. The automobile headlight lens assembly with adjustable illumination range according to claim 5, characterized in that: The bottom rotating cover (117) is rotatably mounted on the top supporting seat (104), the top supporting seat (104) is fixedly mounted on the partitioning air-permeable net (106), a plurality of through-hole grooves are arranged on the circumferential surface of the partitioning air-permeable net (106), the partitioning air-permeable net (106) is fixedly mounted on the base (107), a through-hole is opened at the center of the circle of the base (107), and a driving motor (108) is fixedly mounted below the through-hole.

7. The automobile headlight lens assembly with adjustable illumination range according to claim 6, characterized in that: A limiting gear ring frame (109) is rotatably mounted on the inner wall of the top support seat (104), and three planetary gears (111) are rotatably mounted on the limiting gear ring frame (109); an inner gear ring (115) meshing with the three planetary gears (111) is fixedly sleeved on the outer surface of the bottom rotating cover (117); a gear ring (110) is rotatably mounted on the inner wall of the partitioning air-permeable net (106), and the gear ring (110) and the inner gear ring (115) are meshed and driven through the three planetary gears (111); and an electromagnet (105) magnetically matched with the limiting gear ring frame (109) is fixedly mounted on the outer surface of the top support seat (104).

8. The automobile headlight lens assembly with adjustable illumination range according to claim 7, characterized in that: A paddle blade supporting rotating disk (113) is rotatably mounted on the base (107); a plurality of through holes are provided at the center of the paddle blade supporting rotating disk (113); the center of the paddle blade supporting rotating disk (113) is fixedly matched with the output shaft of the drive motor (108); the output shaft of the drive motor (108) is also fixedly matched with the heat dissipation turbine (114); a plurality of inclined paddle blades (112) arranged in a circular equidistant array are fixedly mounted between the paddle blade supporting rotating disk (113) and the gear ring (110).

9. The automobile headlight lens assembly with adjustable illumination range according to claim 8, characterized in that: A protective baffle (101) is fixedly mounted on the top of the top support seat (104), and a reflector (102) is fixedly mounted on the protective baffle (101). A sealing light-transmitting plate (103) is also provided on the protective baffle (101), and the sealing light-transmitting plate (103) is used to seal the internal space of the protective baffle (101).

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