Light source structure of headlamp

Abstract

The invention provides a headlamp light source structure, and belongs to the technical field of automobile lamps, the headlamp light source structure comprises a connecting sleeve, a hemispherical convex lens, an LED lamp panel and a lens group, the middle part of the connecting sleeve is provided with a vertically through accommodating hole, the hemispherical convex lens is inserted in the upper end of the accommodating hole, and the convex surface of the hemispherical convex lens is located outside the connecting sleeve; the LED lamp panel is connected to the lower end of the connecting sleeve, the lens set is arranged at the upper end of the LED lamp panel and located in the containing hole, and the lens set is used for converging light rays emitted by the LED lamp panel to the focus of the hemispherical convex lens. According to the headlamp light source structure, the divergence amount of light is reduced, and the lighting effect of a lamp is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile lamps, and more specifically, relates to a headlamp light source structure. Background Art

[0002] At night or in dim light, the headlights provide the driver with lighting for the road ahead, allowing the driver to see the road conditions, obstacles, traffic signs, etc., to ensure driving safety. Currently, some car headlights use halogen bulbs as light sources, but in actual applications, the brightness of halogen bulbs is relatively low, the directionality of halogen bulb light is poor, the light distribution after passing through the lens is not uniform enough, and the lighting effect cannot meet customer requirements. Summary of the invention

[0003] The object of the present invention is to provide a headlamp light source structure, aiming to solve the problem of poor lighting effect of headlamps involved in the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide a headlamp light source structure, including: A connecting sleeve, wherein the middle portion of the connecting sleeve is provided with a receiving hole extending through the connecting sleeve from top to bottom; A hemispherical convex lens is inserted into the upper end of the receiving hole, and the convex surface of the hemispherical convex lens is located outside the connecting sleeve; An LED light board connected to the lower end of the connecting sleeve; The lens group is arranged at the upper end of the LED light board and is located inside the accommodating hole. The lens group is used to converge the light emitted by the LED light board to the focus of the hemispherical convex lens.

[0005] In a possible implementation, the lower end of the connecting sleeve is connected to a heat sink, the LED light board is fixed to the upper end of the heat sink, and the lower end of the heat sink is connected to a plurality of heat sinks.

[0006] In a possible implementation, an annular boss is circumferentially provided at the plane end of the hemispherical convex lens, and a limiting component for limiting the upward and downward movement of the annular boss is provided on the connecting sleeve, and the limiting component includes: An annular flange is arranged on the circumference of the upper end of the receiving hole and protrudes inwardly; A plurality of elastic sheets, each of which is arranged on the circumference of the inner side wall of the receiving hole and below the annular flange; The hemispherical convex lens is inserted into the annular flange, and the annular boss is clamped between the annular flange and the elastic sheet.

[0007] In a possible implementation, a plurality of slots are provided on the annular boss, and a clamping block is provided on the inner side wall of the accommodating hole corresponding to the slots, and the slots are plug-fitted with the clamping block to limit the rotation of the hemispherical convex lens.

[0008] In a possible implementation, a plurality of avoidance windows are circumferentially provided on the side wall of the accommodating hole and penetrate the accommodating hole in a radial direction, and the elastic sheet is disposed in the avoidance window. The elastic sheet is deformed toward the inside or outside of the connecting sleeve through the avoidance window.

[0009] In a possible implementation, an abutment portion is provided on a side wall of the elastic sheet facing the accommodating hole, and the abutment portion protrudes toward an inner side of the accommodating hole to abut against a lower end of the annular boss.

[0010] In a possible implementation, a slope that is tilted outward from top to bottom is provided on the side wall of the abutment portion facing the accommodating hole, and the annular boss slides from bottom to top along the slope to drive the elastic sheet to deform toward the outside of the connecting sleeve.

[0011] In a possible implementation, the blocking block includes a first block and a second block, the first block is a strip block connected between the side wall of the accommodating hole and the annular flange, the second block is an L-shaped block connected between the side wall of the accommodating hole and the annular flange, the long side end of the L-shaped block is connected to the inner edge of the annular flange, the short side end of the L-shaped block is connected to the side wall of the accommodating hole, and there is a storage gap between the long side end of the L-shaped block and the side wall of the accommodating hole, a plug block is inserted in the storage gap, and the plug block presses the long side end of the L-shaped block so that the long side end of the L-shaped block clamps the annular boss.

[0012] In a possible implementation, an insert plate is provided on the inner side wall of the accommodating hole, and the plug block is an arched piece arranged on the upper end of the insert plate, and the middle part of the arched piece protrudes toward the inside of the accommodating hole in an arched shape.

[0013] In a possible implementation, a plug-in portion is provided at the lower end of the plug-in board, a plug-in block is provided on the connecting sleeve corresponding to the plug-in portion, and the plug-in portion cooperates with the plug-in block to fix the plug-in board.

[0014] The beneficial effect of a headlamp light source structure provided by the present invention is that: compared with the prior art, a headlamp light source structure provided by the present invention uses an LED light board with higher brightness, and a lens group is arranged on the LED light board to converge the light emitted by the LED light board, so that the pipeline is focused on the focus of the hemispherical convex lens, and then the refraction of the hemispherical convex lens forms a uniformly distributed light, thereby reducing the divergence of the light and improving the lighting effect of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A three-dimensional structural schematic diagram of a headlight light source structure provided by an embodiment of the present invention; Figure 2 A schematic diagram of the main structure of a headlamp light source structure provided by an embodiment of the present invention; Figure 3 A front structural cross-sectional view of a headlamp light source structure provided by an embodiment of the present invention; Figure 4 Schematic diagram of the three-dimensional structure of the connecting sleeve provided in the embodiment of the present invention Figure 1 ; Figure 5 Schematic diagram of the three-dimensional structure of the connecting sleeve provided in the embodiment of the present invention Figure 2 ; Figure 6 A bottom view schematic diagram of the connecting sleeve provided in an embodiment of the present invention; Figure 7 A schematic diagram of the three-dimensional structure of a hemispherical convex lens provided in an embodiment of the present invention; Figure 8 A schematic diagram of the three-dimensional structure of the plug board provided in an embodiment of the present invention; Fig. 9 A schematic diagram of the assembly structure of the connecting sleeve and the plug board provided in an embodiment of the present invention; Fig.10 for Figure 1 Enlarged structural diagram at M in the middle.

[0017] Description of reference numerals: 1. Connecting sleeve; 101. Accommodating hole; 102. Avoidance window; 103. Storage gap; 11. Annular flange; 12. Elastic sheet; 121. Abutment portion; 1211. Inclined surface; 131. Strip block; 132. L-shaped block; 14. Plug-in block; 141. Guide surface; 2. Hemispherical convex lens; 21. Annular boss; 22. Card slot; 3. LED light board; 4. Lens group; 5. Heat sink; 51. Heat sink; 6. Insertion board; 61. Arched sheet; 62. L-shaped board; 621. Insertion hole; 63. Protrusion; 64. Avoidance groove. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0020] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] See also Figures 1 to 3 Now, a headlamp light source structure provided by the present invention is described. The headlamp light source structure includes a connecting sleeve 1, a hemispherical convex lens 2, an LED light board 3 and a lens group 4, wherein the middle part of the connecting sleeve 1 is provided with a receiving hole 101 which is arranged through from top to bottom, the hemispherical convex lens 2 is inserted at the upper end of the receiving hole 101, the convex surface of the hemispherical convex lens 2 is located outside the connecting sleeve 1, the LED light board 3 is connected to the lower end of the connecting sleeve 1, the lens group 4 is arranged at the upper end of the LED light board 3 and is located inside the receiving hole 101, and the lens group 4 is used to converge the light emitted by the LED light board 3 to the focus of the hemispherical convex lens 2.

[0023] Compared with the prior art, a headlamp light source structure provided by the present invention uses an LED light board 3 with higher brightness, and a lens group 4 is arranged on the LED light board 3 to converge the light emitted by the LED light board 3, so that the pipeline is focused on the focus of the hemispherical convex lens 2, and then the refraction of the hemispherical convex lens 2 forms a uniformly distributed light, thereby reducing the divergence of the light and improving the lighting effect of the lamp.

[0024] In some embodiments, see Figures 1 to 3 A heat sink 5 is bolted and fixed at the lower end of the connecting sleeve 1 , and the LED lamp board 3 is fixed at the upper end of the heat sink 5 . In order to improve the heat dissipation effect, a plurality of heat sinks 51 are also connected to the lower end of the heat sink 5 .

[0025] In some embodiments, see Figures 1 to 7 The above-mentioned connecting sleeve 1 is a plastic product made of PC material. An annular boss 21 is circumferentially provided on the plane end of the above-mentioned hemispherical convex lens 2. A limiting component for limiting the up and down movement of the annular boss 21 is provided on the connecting sleeve 1. Specifically, the limiting component includes an annular flange 11 and an elastic sheet 12, wherein the annular flange 11 is arranged circumferentially on the upper end of the accommodating hole 101 and protrudes inwardly. There are multiple elastic sheets 12, and multiple elastic sheets 12 are arranged circumferentially on the inner side wall of the accommodating hole 101 and are located below the annular flange 11. The hemispherical convex lens 2 is inserted into the annular flange 11, and the annular boss 21 is stuck between the annular flange 11 and the elastic sheet 12.

[0026] In this embodiment, four avoidance windows 102 are provided on the circumference of the side wall of the accommodating hole 101 and penetrate the accommodating hole 101 in a radial direction. The four avoidance windows 102 are evenly arranged. The elastic sheet 12 is arranged in the avoidance window 102. The elastic sheet 12 can be deformed toward the inside or outside of the connecting sleeve 1 through the avoidance window 102. In this embodiment, the elastic sheet 12 is a plastic sheet structure made of the same material as the connecting sleeve 1, and is integrally processed and formed with the connecting sleeve 1.

[0027] In this embodiment, an abutting portion 121 is provided on the side wall of the elastic sheet 12 facing the accommodating hole 101, and the abutting portion 121 protrudes toward the inner side of the accommodating hole 101. In application, the abutting portion 121 abuts against the lower end of the annular boss 21. In order to facilitate the assembly of the hemispherical convex lens 2, an inclined surface 1211 is provided on the side wall of the abutting portion 121 facing the accommodating hole 101, which is inclined from top to bottom and outward. During installation, the hemispherical convex lens 2 is inserted from the lower end of the accommodating hole 101. And move upward. During the upward movement of the hemispherical convex lens 2, the annular boss 21 slides from bottom to top along the inclined surface 1211. The annular boss 21 squeezes the elastic sheet 12, driving the elastic sheet 12 to deviate and deform toward the outside of the connecting sleeve 1 through the avoidance window 102. After the annular boss 21 passes over the abutment portion 121, the elastic sheet 12 deviates and recovers its deformation toward the inside of the connecting sleeve 1 through the avoidance window 102, and abuts against the lower end of the annular boss 21, limiting the downward movement of the annular boss 21.

[0028] In some embodiments, see Figures 4 to 7 A plurality of card slots 22 are provided on the annular boss 21 of the hemispherical convex lens 2, and card blocks are provided on the inner side wall of the accommodating hole 101 corresponding to the card slots 22. In application, the card slots 22 and the card blocks are inserted and matched to limit the rotation of the hemispherical convex lens 2.

[0029] In some embodiments, see Figures 4 to 7 The above-mentioned block includes two first blocks and two second blocks, wherein the first block is a strip block 131 connected between the side wall of the accommodating hole 101 and the annular flange 11, and the second block is an L-shaped block 132 connected between the side wall of the accommodating hole 101 and the annular flange 11. In this embodiment, the long side end of the L-shaped block 132 is connected to the inner edge of the annular flange 11, and the short side end of the L-shaped block 132 is connected to the side wall of the accommodating hole 101. There is a storage gap 103 between the long side end of the L-shaped block 132 and the side wall of the accommodating hole 101, and a plug is inserted in the storage gap 103. The plug presses the long side end of the L-shaped block 132 so that the long side end of the L-shaped block 132 clamps the annular boss 21 to prevent the hemispherical convex lens 2 from being loosened when connected to the connecting sleeve 1 during use.

[0030] In some embodiments, see Figures 8 to 10 , an insert plate 6 is provided on the inner side wall of the accommodating hole 101, and the shovel plate is an arc-shaped plate that fits with the inner wall of the accommodating hole 101. In application, the insert plate 6 is made of the same material as the connecting sleeve 1, and the above-mentioned plug block is an arched piece 61 arranged at the upper end of the insert plate 6. In this embodiment, the middle part of the arched piece 61 protrudes into the inside of the accommodating hole 101 in an arched shape. When in use, the insert plate 6 is inserted into the side wall of the accommodating hole 101, and the arched piece 61 at the upper end of the insert plate 6 is inserted into the above-mentioned storage gap 103. The height of the protrusion in the middle part of the arched piece 61 is slightly larger than the size of the storage gap 103. In this way, after the arched piece 61 is inserted into the storage gap 103, the long side end of the L-shaped block 132 can be squeezed to clamp the annular boss 21. In this embodiment, in order to improve the structural strength of the inserting plate 6, some convex ridges 63 are provided in the middle of the inserting plate 6. In addition, an escape groove 64 for escaping the elastic sheet 12 is provided at the upper end of the shovel plate.

[0031] In some embodiments, see Figures 8 to 10 , a plug-in portion is provided at the lower end of the plug-in board 6, and a plug-in block 14 is provided on the connection sleeve 1 corresponding to the plug-in portion, and the plug-in portion cooperates with the plug-in block 14 to fix the plug-in board 6. Specifically, the plug-in portion is an L-shaped plate 62 connected to the outer side of the lower edge of the plug-in board 6, and a plug-in hole 621 is provided in the middle of the L-shaped plate 62. The plug-in block 14 is arranged on the bottom of the outer side wall of the connection sleeve 1, and a guide surface 141 inclined outward from bottom to top is provided at the outer end of the plug-in block 14. In application, the side wall of the connection sleeve 1 is inserted between the L-shaped plate 62 and the plug-in board 6, and the plug-in block 14 is inserted in the plug-in hole 621, and the plug-in block 14 protrudes outward from the L-shaped plate 62. The plug-in block 14 fixes the plug-in board 6 on the connection sleeve 1 by limiting the downward movement of the L-shaped plate 62.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A headlamp light source structure, characterized in that: include: A connecting sleeve (1), wherein the middle portion of the connecting sleeve (1) is provided with a receiving hole (101) penetrating vertically; A hemispherical convex lens (2) is inserted into the upper end of the accommodating hole (101), and the convex surface of the hemispherical convex lens (2) is located outside the connecting sleeve (1); An LED light board (3) connected to the lower end of the connecting sleeve (1); The lens group (4) is arranged at the upper end of the LED light board (3) and is located inside the accommodating hole (101). The lens group (4) is used to converge the light emitted by the LED light board (3) onto the focus of the hemispherical convex lens (2).

2. A headlamp light source structure as claimed in claim 1, characterized in that: The lower end of the connecting sleeve (1) is connected to a heat sink (5), the LED lamp panel (3) is fixed to the upper end of the heat sink (5), and the lower end of the heat sink (5) is connected to a plurality of heat sinks (51).

3. A headlamp light source structure as claimed in claim 1, characterized in that: An annular boss (21) is circumferentially provided at the plane end of the hemispherical convex lens (2), and a limiting component for limiting the upward and downward movement of the annular boss (21) is provided on the connecting sleeve (1), and the limiting component comprises: An annular flange (11) is arranged on the circumference of the upper end of the receiving hole (101) and protrudes inwards; A plurality of elastic sheets (12), each of which is arranged in the circumferential direction of the inner wall of the receiving hole (101) and is located below the annular flange (11); The hemispherical convex lens (2) is inserted into the annular flange (11), and the annular boss (21) is clamped between the annular flange (11) and the elastic sheet (12).

4. A headlamp light source structure as claimed in claim 3, characterized in that: The annular boss (21) is provided with a plurality of slots (22), and the inner side wall of the accommodating hole (101) is provided with a clamping block corresponding to the slots (22), and the slots (22) are inserted and matched with the clamping block to limit the rotation of the hemispherical convex lens (2).

5. A headlamp light source structure as claimed in claim 4, characterized in that: The side wall of the accommodating hole (101) is circumferentially provided with a plurality of avoidance windows (102) penetrating in the radial direction thereof, the elastic sheet (12) is arranged in the avoidance window (102), and the elastic sheet (12) is deformed toward the inside or outside of the connecting sleeve (1) through the avoidance window (102).

6. A headlamp light source structure as claimed in claim 5, characterized in that: An abutment portion (121) is provided on the side wall of the elastic sheet (12) facing the accommodating hole (101), and the abutment portion (121) protrudes toward the inside of the accommodating hole (101) and is used to abut against the lower end of the annular boss (21).

7. A headlamp light source structure as claimed in claim 6, characterized in that: A slope (1211) is provided on the side wall of the abutting portion (121) facing the accommodating hole (101), and is tilted outward from top to bottom. The annular boss (21) slides from bottom to top along the slope (1211), thereby driving the elastic sheet (12) to deform toward the outside of the connecting sleeve (1).

8. A headlamp light source structure as claimed in claim 4, characterized in that: The clamping block comprises a first block and a second block, wherein the first block is a strip block (131) connected between the side wall of the accommodating hole (101) and the annular flange (11), and the second block is an L-shaped block (132) connected between the side wall of the accommodating hole (101) and the annular flange (11), wherein the long side end of the L-shaped block (132) is connected to the inner edge of the annular flange (11), and the short side end of the L-shaped block (132) is connected to the side wall of the accommodating hole (101), and a storage gap (103) is provided between the long side end of the L-shaped block (132) and the side wall of the accommodating hole (101), and a plug is inserted into the storage gap (103), and the plug presses against the long side end of the L-shaped block (132) so that the long side end of the L-shaped block (132) clamps the annular boss (21).

9. A headlamp light source structure as claimed in claim 8, characterized in that: An insert plate (6) is provided on the inner side wall of the accommodating hole (101), and the plug is an arched piece (61) arranged on the upper end of the insert plate (6), and the middle part of the arched piece (61) protrudes toward the inside of the accommodating hole (101) in an arched shape.

10. A headlamp light source structure as claimed in claim 9, characterized in that: The lower end of the plug board (6) is provided with a plug-in portion, and the connecting sleeve (1) is provided with a plug-in block (14) corresponding to the plug-in portion, and the plug-in portion cooperates with the plug-in block (14) to fix the plug board (6).

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