Condensation front lamp

Abstract

The utility model discloses a condensation headlight which comprises a lens and a light-emitting part, the lens comprises a light-in surface and a light-out surface, the light-in surface is a plane, the light-out surface is in a three-dimensional cambered surface shape, the light-emitting part comprises a lamp bead, the lamp bead corresponds to the light-in surface, and the lamp bead is arranged close to the bottom of the light-in surface. The lens can form non-circular light spots such as trapezoidal or drum-shaped light spots, and meets the requirements of specific application places or standards.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, in particular to a spotlight headlamp. Background Art

[0002] Headlights are used for vehicle lighting. The light spot formed by headlights is generally circular. However, for some specific places or regions, non-circular light spots such as trapezoidal or drum-shaped are required. The existing headlight focusing transparent parts are convex lens structures with spherical surfaces, which can only form circular light spots. Utility Model Content

[0003] The purpose of the utility model is to provide a spotlight headlamp, the lens of which has a light-emitting surface in a three-dimensional arc shape, which can form a non-circular light spot such as a trapezoidal or drum-shaped light spot to meet the requirements of specific application places or standards.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A spotlight headlight comprises a lens and a light-emitting portion, wherein the lens comprises a light-incident surface and a light-emitting surface, wherein the light-incident surface is a plane and the light-emitting surface is a three-dimensional arc surface;

[0006] The light emitting portion includes lamp beads, which correspond to the light incident surface;

[0007] The lamp beads are arranged close to the bottom of the light incident surface.

[0008] In some embodiments, the light emitting surface includes a first meridian and a second meridian, and both the first meridian and the second meridian are spline curves.

[0009] In some embodiments, a ratio of the height to the span of the light emitting surface is between 0.4 and 0.5.

[0010] In some embodiments, the lens is provided with a first flange, and the first flange is provided with a stepped column;

[0011] The light-emitting part also includes a circuit board, and the circuit board is provided with a slot matched with the stepped column.

[0012] In some embodiments, a lampshade, a kit, and a back shell are also included;

[0013] A first step is provided inside the rear shell, and a second step and an annular groove are provided at the end of the rear shell;

[0014] The lampshade includes a panel and sides;

[0015] The kit is ring-shaped, and a second flange is provided at one end of the kit close to the lampshade;

[0016] The circuit board of the light-emitting part abuts against the first step, the stepped column of the lens is connected to the slot, the end of the kit close to the light-emitting part abuts against the first flange of the lens, one side of the second flange of the kit abuts against the second step, the other side of the second flange abuts against the panel of the lampshade, and the side of the lampshade is connected to the ring groove.

[0017] In some embodiments, a support ear is provided on the outer side of the rear shell, and the support ear is provided with a mounting hole.

[0018] The beneficial effects of the present invention are as follows: the light-emitting surface of the lens is in a three-dimensional arc shape, which can form a non-circular light spot such as a trapezoidal or drum-shaped light spot, meeting the requirements of specific application sites or standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of a spotlight headlamp of the present invention;

[0020] Figure 2 This is a cross-sectional view of the lens and light-emitting portion of the present invention;

[0021] Figure 3 This is a cross-sectional view of the lens of the present invention;

[0022] Figure 4 This is one of the exploded views of a spotlight headlamp of the present invention;

[0023] Figure 5 This is the second exploded view of a spotlight headlight of the present invention;

[0024] Figure 6 This is a light spot effect diagram of the headlight of the utility model;

[0025] Among them: 1-lampshade; 11-panel; 12-side; 2-lens; 21-light incident surface; 22-light exit surface; 221-first meridian; 222-second meridian; 23-first flange; 24-step column; 3-kit; 31-second flange; 4-light-emitting part; 41-lamp bead; 42-circuit board; 421-slot; 5-back shell; 51-first step; 52-second step; 53-ring groove; 54-support ear; 55-mounting hole. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] refer to Figures 1 to 3 , a spotlight headlight, comprising a lens 2 and a light-emitting portion 4;

[0028] The lens 2 can be made of a light-transmitting material such as PMMA, PC or glass. The lens 2 includes a light-entering surface 21 and a light-emitting surface 22. The light-entering surface 21 is a plane, and the light-emitting surface 22 is a three-dimensional arc shape. The three-dimensional arc shape can be understood as a free-form surface shape. The lens 2 constitutes a convex lens structure, which can focus the light. Moreover, since the light-emitting surface 22 is a three-dimensional arc shape, the light forms a non-circular light spot. Figure 6 , for example, forming a light spot similar to a trapezoid or drum shape, with a clear light-dark dividing line formed on the top of the light spot;

[0029] The light emitting portion 4 includes a lamp bead 41, and the lamp bead 41 corresponds to the light incident surface 21;

[0030] refer to Figure 2 The lamp bead 41 is arranged near the bottom of the light incident surface 21. The lamp bead 41 is not facing the middle of the light incident surface 21, but is offset to the bottom and located below the central axis L of the light incident surface 21. As a result, the light will be more concentrated on the top of the light spot, making the top of the light spot brighter and the bottom of the light spot relatively darker, forming a clear light-dark dividing line at the top of the light spot.

[0031] Thus, the lens 2 focuses the light, increasing the brightness of the light spot or the illuminated area, and the three-dimensional arc-shaped light-emitting surface 22 cooperates with the offset setting of the lamp bead 41 to enable the light to form a non-circular light spot, thereby meeting the requirements of specific application locations or standards.

[0032] refer to Figure 3 The light-emitting surface 22 includes a first meridian 221 (AO segment curve) and a second meridian 222 (BO segment curve). Both the first meridian 221 and the second meridian 222 are spline curves. The curvature variation of the first meridian 221 and the second meridian 222 can be the same or different. For example, the curvature variation of the first meridian 221 can be greater than that of the second meridian 222. This can be understood as the first meridian 221 having a larger slope and the second meridian 222 having a smaller slope. The upper and lower portions of the light-emitting surface 22 create different focusing effects, forming a non-circular light spot, such as a trapezoidal or drum-shaped light spot, with a clear light-dark boundary at the top of the light spot.

[0033] The ratio of the height H to the span W of the light emitting surface 22 is between 0.4 and 0.5, which is more conducive to focusing light and forming a non-circular light spot.

[0034] refer to Figure 4 and Figure 5 The outer side of the lens 2 is provided with a first flange 23, and the first flange 23 is provided with a stepped column 24; there can be three stepped columns 24;

[0035] The light emitting unit 4 further includes a circuit board 42. The lamp beads 41 are LEDs mounted on the circuit board 42. The circuit board 42 is provided with a slot 421 that matches the step column 24. The step column 24 is inserted into the slot 421, thereby connecting the lens 2 to the circuit board 42.

[0036] refer to Figure 4 and Figure 5 The headlight further includes a lampshade 1, a kit 3 and a rear shell 5; the lampshade 1 and the rear shell 5 form an internal space capable of accommodating the lens 2, the kit 3 and the light-emitting part 4;

[0037] A first step 51 is provided inside the rear shell 5, and a second step 52 and an annular groove 53 are provided at the end of the rear shell 5; the annular groove 53 can be provided on the outer side of the second step 52;

[0038] The lampshade 1 includes a panel 11 and side edges 12. The side edges 12 are arranged around the panel 11. The lampshade 1 can be made of a light-transmitting material such as PMMA, PC or glass.

[0039] The sleeve 3 is annular, and a second flange 31 is provided at one end of the sleeve 3 close to the lampshade 1; the middle space of the sleeve 3 can accommodate part of the lens 2, and the light-emitting surface 22 of the lens 2 is located in the middle space of the sleeve 3;

[0040] The circuit board 42 of the light-emitting unit 4 abuts the first step 51, the stepped column 24 of the lens 2 is connected to the slot 421, the end of the sleeve 3 near the light-emitting unit 4 abuts the first flange 23 of the lens 2, one side of the second flange 31 of the sleeve 3 abuts the second step 52, and the opposite side of the second flange 31 abuts the panel 11 of the lampshade 1, and the side 12 of the lampshade 1 is connected to the annular groove 53. For example, the side 12 of the lampshade 1 can be connected to the annular groove 53 using a snap-fit ​​structure or fixedly connected to the annular groove 53 using glue.

[0041] Thus, the lampshade 1, the assembly 3 and the light-emitting part 4 form a stacked structure, and are fixed in position by abutting and pressing them in sequence.

[0042] The outer side of the rear shell 5 is provided with a support ear 54, and the support ear 54 is provided with a mounting hole 55. The headlight is assembled on a structure such as a vehicle frame through the support ear 54.

[0043] The headlight can be applied to vehicles such as electric bicycles, electric vehicles, and electric scooters.

[0044] The above disclosure is only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A spotlight headlight, characterized in that: The invention comprises a lens (2) and a light-emitting portion (4), wherein the lens (2) comprises a light-entering surface (21) and a light-emitting surface (22), wherein the light-entering surface (21) is a plane, and the light-emitting surface (22) is a three-dimensional arc surface. The light-emitting portion (4) includes a lamp bead (41), and the lamp bead (41) corresponds to the light incident surface (21); The lamp bead (41) is arranged close to the bottom of the light incident surface (21).

2. A spotlight headlamp according to claim 1, characterized in that: The light-emitting surface (22) includes a first meridian (221) and a second meridian (222), the first meridian (221) and the second meridian (222) are both spline curves, and the curvature variation degrees of the first meridian (221) and the second meridian (222) are different.

3. The spotlight headlight according to claim 2, characterized in that: The ratio of the height (H) to the span (W) of the light emitting surface (22) is between 0.4 and 0.

5.

4. The spotlight headlamp according to claim 1, characterized in that: The lens (2) is provided with a first flange (23), and the first flange (23) is provided with a stepped column (24); The light-emitting portion (4) further comprises a circuit board (42), wherein the circuit board (42) is provided with a slot (421) that matches the stepped column (24).

5. A spotlight headlamp according to any one of claims 1 to 4, characterized in that: It also includes a lampshade (1), a kit (3) and a rear shell (5); A first step (51) is provided inside the rear shell (5), and a second step (52) and an annular groove (53) are provided at the end of the rear shell (5); The lampshade (1) comprises a panel (11) and a side (12); The sleeve (3) is annular, and a second flange (31) is provided at one end of the sleeve (3) close to the lampshade (1); The circuit board (42) of the light-emitting portion (4) abuts against the first step (51), the stepped column (24) of the lens (2) is connected to the slot (421), one end of the kit (3) close to the light-emitting portion (4) abuts against the first flange (23) of the lens (2), one side of the second flange (31) of the kit (3) abuts against the second step (52), the other side of the second flange (31) abuts against the panel (11) of the lampshade (1), and the side edge (12) of the lampshade (1) is connected to the annular groove (53).

6. The spotlight headlamp according to claim 5, characterized in that: The outer side of the rear shell (5) is provided with a support ear (54), and the support ear (54) is provided with a mounting hole (55).

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