Bifocal lens group with high light uniformity

Abstract

The utility model relates to the field of lighting lamps, in particular to a bifocal lens group with strong light uniformity, which comprises a mounting shell and an LED light source plate, a connecting frame is fixedly mounted at the front end of the mounting shell, a main lens is arranged on the inner side of the connecting frame, and LED lamp beads are fixedly mounted at the front end of the LED light source plate. A sealing connecting base is fixedly installed on the side of the front end of the LED light source plate, a protective lens is fixedly installed on the inner side of the sealing connecting base, a lens protrusion is arranged at the front end of the protective lens, a containing cavity is formed in the position, located at the rear end of the lens protrusion, of the inner side of the protective lens, and a connecting shaft is arranged on the front side in the installation shell. The electric telescopic rod drives the contact block to slightly move up and down, the reset spring is matched to drive the dimming plate to be attached to the contact block all the time, and therefore position state adjustment of the dimming plate is achieved, and conversion of far and near light is completed; and the sealing performance between the transmission structure and the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the field of lighting fixtures, in particular to a double-light lens group with strong light uniformity. Background Art

[0002] The double-light lens is mostly used in xenon headlights that share one light source for low and high beams. There is a light-shielding sheet inside the lens, and the low and high beams are realized by the up and down movement of the light-shielding sheet. In this way, only one xenon bulb is needed to realize the switching between low and high beams. The development and application of this technology have realized the change and use of the automobile lighting effect, and improved the convenience and convenience of driving at night.

[0003] At present, the adjustment drive mechanism of the dimming board of the double-light lens group is generally installed outside the device, and there is a certain gap between its transmission structure and the device, which allows dust to enter the device interior and easily affects the lighting effect of the double-light lens group.

[0004] Therefore, aiming at the problem that there is a certain gap between the dimming board transmission structure and the device, which allows dust to enter the device interior and easily affects the lighting effect of the double-light lens group, a double-light lens group with good sealing performance can be designed. Summary of the Utility Model

[0005] In order to overcome the problem that there is a certain gap between the dimming board transmission structure and the device, which allows dust to enter the device interior and easily affects the lighting effect of the double-light lens group.

[0006] The technical solution of the utility model is: a double-light lens group with strong light uniformity, including an installation housing, and further including an LED light source board. A connection frame is fixedly installed at the front end of the installation housing, a main lens is arranged inside the connection frame, LED lamp beads are fixedly installed at the front end of the LED light source board, a sealing connection seat is fixedly installed at the side of the front end of the LED light source board, a protective lens is fixedly installed inside the sealing connection seat, a lens protrusion is arranged at the front end of the protective lens, a receiving cavity is arranged inside the protective lens at the rear end of the lens protrusion, a connection shaft is arranged at the front side inside the installation housing, a dimming board is fixedly installed on the surface of the connection shaft, reset springs are fixedly installed on the left and right sides at the lower end of the dimming board, an electric telescopic rod is fixedly installed at the front side of the lower end of the installation housing, and the output end of the electric telescopic rod extends into the installation housing and is fixedly installed with a contact block.

[0007] Preferably, a heat dissipation board is fixedly installed at the rear end of the LED light source board, and heat dissipation fins are fixedly installed at the rear end of the heat dissipation board.

[0008] As a preference, the side at the front end of the heat dissipation board is fixedly connected to the installation housing, and the heat dissipation fins are arranged at equal intervals. The heat generated by the LED light source board is conducted to the heat dissipation fins through the heat dissipation board, and the heat exchange area with the air is enlarged in cooperation with the heat dissipation fins, so as to realize the heat dissipation function.

[0009] Preferably, the LED lamp beads are evenly spaced, and the accommodating cavity is adapted to the LED lamp beads.

[0010] Preferably, a reflective area is provided on the rear side of the inner surface of the mounting housing, and both the left and right ends of the connecting shaft are rotatably connected to the mounting housing.

[0011] Preferably, the dimming board is designed in an L-shaped structure, and the lower end of the return spring is fixedly connected to the mounting housing.

[0012] Preferably, the output end of the electric telescopic rod is slidably connected to the mounting housing, the contact block is adhesively connected to the dimming board, and the electric telescopic rod is set to have a short adjustment distance, so that the dimming board rotates and adjusts at a small angle around the connecting shaft, and the blocking and releasing of the high beam light can be realized.

[0013] Advantages of the present utility model:

[0014] 1. For the double-light lens group with strong light uniformity, the LED lamp beads are evenly spaced, so that the light can be evenly distributed. The lens protrusions are used to preliminarily process the light, which is convenient for optimizing the color, fullness and light output uniformity of the light. At the same time, the protective lens is cooperated to further protect each LED lamp bead, reducing the situation that the failure of a certain LED lamp bead affects the overall lighting effect, which is beneficial to optimizing and maintaining the light uniformity of the double-light lens group;

[0015] 2. For the double-light lens group with strong light uniformity, when adjusting the high and low beams of the double-light lens group, the electric telescopic rod drives the contact block to move slightly up and down, and the return spring drives the dimming board to always fit the contact block, so as to realize the adjustment of the position state of the dimming board and complete the transformation of the high and low beams. Moreover, the output end of the electric telescopic rod is slidably connected to the mounting housing, improving the sealing performance between the transmission structure and the equipment, preventing dust from entering the equipment interior and affecting the light, which is beneficial to the equipment protection performance and further maintaining the high-quality lighting effect. Description of the drawings

[0016] Figure 1 Shown is a three-dimensional structure schematic diagram of the double-light lens group with strong light uniformity of the present utility model Figure 1 ;

[0017] Figure 2 Shown is a three-dimensional structure schematic diagram of the double-light lens group with strong light uniformity of the present utility model Figure 2 ;

[0018] Figure 3 Shown is a three-dimensional structure schematic diagram of the mounting housing of the present utility model;

[0019] Figure 4 Shown is a three-dimensional structure schematic diagram of the LED light source board of the present utility model.

[0020] Description of reference numerals: 1. Installation housing; 2. LED light source board; 3. Connecting frame; 4. Main lens; 5. LED lamp beads; 6. Sealed connection seat; 7. Protective lens; 8. Lens protrusion; 9. Accommodating cavity; 10. Connecting shaft; 11. Dimming board; 12. Return spring; 13. Electric telescopic rod; 14. Contact block; 15. Heat dissipation board; 16. Heat dissipation fins; 17. Reflective area. Specific implementation mode

[0021] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Please refer to ( Figures 1 - 4 ) The present utility model provides an embodiment: a dual-light lens group with strong light uniformity, including an installation housing 1, and further including an LED light source board 2. A connecting frame 3 is fixedly installed at the front end of the installation housing 1. A main lens 4 is arranged inside the connecting frame 3. An LED lamp bead 5 is fixedly installed at the front end of the LED light source board 2. A sealed connection seat 6 is fixedly installed at the side of the front end of the LED light source board 2. A protective lens 7 is fixedly installed inside the sealed connection seat 6. A lens protrusion 8 is arranged at the front end of the protective lens 7. An accommodating cavity 9 is arranged at the rear end of the lens protrusion 8 inside the protective lens 7. A connecting shaft 10 is arranged at the front side inside the installation housing 1. A dimming board 11 is fixedly installed on the surface of the connecting shaft 10. Return springs 12 are fixedly installed on both the left and right sides of the lower end of the dimming board 11. An electric telescopic rod 13 is fixedly installed at the front side of the lower end of the installation housing 1. The output end of the electric telescopic rod 13 extends into the installation housing 1 and is fixedly installed with a contact block 14.

[0023] Please refer to ( Figures 2 - 4 ) In this embodiment, a heat dissipation board 15 is fixedly installed at the rear end of the LED light source board 2. Heat dissipation fins 16 are fixedly installed at the rear end of the heat dissipation board 15. The side of the front end of the heat dissipation board 15 is fixedly connected to the installation housing 1. The heat dissipation fins 16 are evenly distributed at equal intervals. The LED lamp beads 5 are evenly distributed at equal intervals. The accommodating cavity 9 is adapted to the LED lamp beads 5. By evenly distributing the LED lamp beads 5, the light can be evenly distributed. The lens protrusion 8 is used to preliminarily process the light, which is convenient for optimizing the color, fullness and light output uniformity of the light. At the same time, the protective lens 7 is cooperated to further protect each LED lamp bead 5, reducing the situation that the failure of a certain LED lamp bead 5 affects the overall lighting effect, which is beneficial to optimizing and maintaining the light uniformity of the dual-light lens group.

[0024] Please refer to ( Figures 1 - 3), in this embodiment, a reflective area 17 is provided on the rear side of the inner surface of the installation housing 1. Both the left and right ends of the connecting shaft 10 are rotatably connected to the installation housing 1. The light-dimming plate 11 is designed in an L-shaped structure. The lower end of the return spring 12 is fixedly connected to the installation housing 1. The output end of the electric telescopic rod 13 is slidably connected to the installation housing 1. The contact block 14 is in fit connection with the light-dimming plate 11. When adjusting the high and low beams of the double-light lens group, the electric telescopic rod 13 drives the contact block 14 to move slightly up and down, and cooperates with the return spring 12 to drive the light-dimming plate 11 to always be in contact with the contact block 14, so as to realize the adjustment of the position state of the light-dimming plate 11 and complete the transformation of the high and low beams. Moreover, the output end of the electric telescopic rod 13 is slidably connected to the installation housing 1, which improves the sealing performance between the transmission structure and the device, prevents dust from entering the device and affecting the light, is beneficial to the protection performance of the device, and further maintains a high-quality lighting effect.

[0025] When working, the LED lamp beads 5 are evenly distributed at equal intervals, so that the light can be evenly distributed. The lens protrusions 8 are used to preliminarily process the light, which is convenient for optimizing the color, saturation and light output uniformity of the light. At the same time, the protective lens 7 is cooperated to further protect each LED lamp bead 5, reducing the situation that the failure of a certain LED lamp bead 5 affects the overall lighting effect. When adjusting the high and low beams of the double-light lens group, the electric telescopic rod 13 drives the contact block 14 to move slightly up and down, and cooperates with the return spring 12 to drive the light-dimming plate 11 to always be in contact with the contact block 14, so as to realize the adjustment of the position state of the light-dimming plate 11 and complete the transformation of the high and low beams. Moreover, the output end of the electric telescopic rod 13 is slidably connected to the installation housing 1, which improves the sealing performance between the transmission structure and the device, prevents dust from entering the device and affecting the light.

[0026] Through the above steps, the output end of the electric telescopic rod 13 is slidably connected to the installation housing 1, which improves the sealing performance between the transmission structure and the device, prevents dust from entering the device and affecting the light, so as to solve the problem that there is a certain gap between the light-dimming plate transmission structure and the device, allowing dust to enter the device and easily affecting the lighting effect of the double-light lens group.

Claims

1. A double-lens group with strong light uniformity, comprising a mounting housing (1), characterized in that: It further includes an LED light source board (2). A connecting frame (3) is fixedly installed at the front end of the installation housing (1). A main lens (4) is arranged inside the connecting frame (3). An LED lamp bead (5) is fixedly installed at the front end of the LED light source board (2). A sealing connection seat (6) is fixedly installed at the side of the front end of the LED light source board (2). A protective lens (7) is fixedly installed inside the sealing connection seat (6). A lens protrusion (8) is arranged at the front end of the protective lens (7). A receiving cavity (9) is arranged inside the protective lens (7) at the rear end of the lens protrusion (8). A connecting shaft (10) is arranged at the front side inside the installation housing (1). A light-dimming board (11) is fixedly installed on the surface of the connecting shaft (10). Reset springs (12) are fixedly installed on both the left and right sides at the lower end of the light-dimming board (11). An electric telescopic rod (13) is fixedly installed at the front side of the lower end of the installation housing (1). The output end of the electric telescopic rod (13) extends into the installation housing (1) and is fixedly installed with a contact block (14).

2. The dual optical lens group with strong light uniformity according to claim 1, characterized in that: A heat dissipation board (15) is fixedly installed at the rear end of the LED light source board (2). Heat dissipation fins (16) are fixedly installed at the rear end of the heat dissipation board (15).

3. The dual optical lens group with strong light uniformity according to claim 2, wherein: The side of the front end of the heat dissipation board (15) is fixedly connected to the installation housing (1). The heat dissipation fins (16) are distributed at equal intervals.

4. A dual optical lens group with strong light uniformity according to claim 1, characterized in that: The LED lamp beads (5) are distributed at equal intervals. The receiving cavity (9) is adapted to the LED lamp beads (5).

5. A dual optical lens group with strong light uniformity according to claim 1, characterized in that: A reflective area (17) is arranged at the rear side of the inner surface of the installation housing (1). Both the left and right ends of the connecting shaft (10) are rotatably connected to the installation housing (1).

6. The dual optical lens group with strong optical uniformity according to claim 5, characterized in that: The light-dimming board (11) is designed in an L-shaped structure. The lower end of the reset spring (12) is fixedly connected to the installation housing (1).

7. A dual-lens group with strong light uniformity according to claim 6, characterized in that: The output end of the electric telescopic rod (13) is slidably connected to the installation housing (1). The contact block (14) is in fitting connection with the light-dimming board (11).

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