Reflection cup type headlight

Abstract

The utility model discloses a reflection cup type headlight which comprises a reflection cup and a light-emitting assembly. The reflection cup comprises a light incident surface, an upper reflection surface and a lower reflection surface, the light incident surface and the upper reflection surface are both located above the lower reflection surface, the upper reflection surface is a plane inclined upwards, the lower reflection surface is in a three-dimensional cambered surface shape, the light incident surface is provided with a light incident port, the light emitting assembly comprises lamp beads, the lamp beads correspond to the light incident port, and the light emitting assembly is arranged in an inclined mode. The light reflecting surface in the three-dimensional cambered surface shape is matched with the upper light reflecting surface arranged on the inclined plane, so that non-circular light spots such as strip-shaped or elliptical light spots can be formed, and the requirements of specific application places or standards are met.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting technology, and in particular to a reflector cup headlight. Background Art

[0002] Vehicle lights are used for vehicle illumination. The light spots formed by vehicle lights are generally circular. However, for some specific places or regions, non-circular light spots such as stripes or ellipses are required. Most existing reflectors are conical in structure, making it difficult to form non-circular light spots that meet the requirements.

[0003] Furthermore, LED circuit boards are mostly fixed to the back cover or reflector with screws, making assembly relatively inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a reflector cup headlight, in which the combination of the three-dimensional arc-shaped reflector and the upper reflector set on the inclined plane can form non-circular light spots such as stripes or ellipses, thereby meeting the requirements of specific application sites or standards.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A reflector-type headlight includes a reflector and a light-emitting component;

[0007] The reflector cup includes an incident light surface, an upper reflective surface, and a lower reflective surface, with the incident light surface and the upper reflective surface both located above the lower reflective surface;

[0008] The upper reflective surface is an upward-sloping plane;

[0009] The lower reflective surface has a three-dimensional curved shape;

[0010] The light-incident surface is provided with a light-incident port;

[0011] The light-emitting component includes LED chips, which correspond to the light inlet.

[0012] The light-emitting components are set at an angle.

[0013] In some embodiments, the surface of the lower reflective surface has multiple strip-shaped arc surfaces.

[0014] In some implementations, the tilt angle of the upper reflective surface is between 30 and 40 degrees.

[0015] In some embodiments, the lower reflective surface also includes side surfaces, with side surfaces on both sides of the lower reflective surface, and the side surfaces are two-dimensional arc-shaped.

[0016] In some implementations, the tilt angle of the light-emitting component is between 12 and 20 degrees.

[0017] In some embodiments, the light-emitting component further includes a circuit board, on which the LEDs are mounted;

[0018] The light-incident surface has an upwardly extending pin, the axis of which is perpendicular to the light-incident surface. The circuit board has a slot, the axis of which is perpendicular to the circuit board.

[0019] In some embodiments, a protrusion is provided at the end of the light-incident surface near the upper reflective surface;

[0020] The protrusion lifts one end of the circuit board, causing the circuit board and the light-receiving surface to tilt relative to each other, which in turn causes the pin and the slot to collide due to their relative tilt.

[0021] In some implementations, the tilt angle between the circuit board and the light-incident surface is between 2 and 5 degrees.

[0022] In some implementations, a rear cover is also included;

[0023] The reflector cup has lugs on its outer side, and the lugs have grooves.

[0024] The interior of the rear shell has a first step and a raised strip; the raised strip cooperates with the groove.

[0025] In some embodiments, a lampshade is also included, which is located at the end of the rear housing.

[0026] The beneficial effects of this utility model are: the combination of the three-dimensional arc-shaped reflective surface and the upper reflective surface set on the inclined plane can form non-circular light spots such as strips or ellipses, which can make the top of the light spot have a more obvious light-dark boundary line, thereby meeting the requirements of specific application sites or standards. Attached Figure Description

[0027] Figure 1 This is a cross-sectional view of the headlight of this utility model;

[0028] Figure 2 This is a structural diagram of the reflector cup of this utility model;

[0029] Figure 3 This is a structural diagram of the reflector and light-emitting component of this utility model;

[0030] Figure 4 This is a partial enlarged view of the reflector and light-emitting component of this utility model;

[0031] Figure 5 This is one of the exploded views of the headlight of this utility model;

[0032] Figure 6 This is the second exploded view of the headlight of this utility model;

[0033] Figure 7 This is a diagram illustrating the beam pattern of the headlight of this utility model.

[0034] Wherein: 1-lampshade; 2-reflector cup; 20-light-inlet surface; 201-light-inlet port; 202-pin; 203-protrusion; 21-lower reflector surface; 22-upper reflector surface; 23-side; 24-lug; 25-slot; 3-light-emitting component; 31-lamp bead; 32-circuit board; 321-slot hole; 4-back cover; 41-first step; 42-protrusion strip; 43-support ear; 44-mounting hole. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings.

[0036] refer to Figures 1 to 4 A reflector-type headlight includes a reflector 2 and a light-emitting component 3;

[0037] The reflector cup 2 includes a light-incident surface 20, an upper reflective surface 22 and a lower reflective surface 21, with the light-incident surface 20 and the upper reflective surface 22 both located above the lower reflective surface 21;

[0038] The upper reflective surface 22 is an upwardly tilted plane. The upward tilt can be understood as rotating upward at a certain angle relative to the horizontal direction.

[0039] The lower reflective surface 21 has a three-dimensional arc shape, which can be understood as a free-form surface, reflecting light in a focused manner;

[0040] The light-incident surface 20 is provided with a light-incident port 201;

[0041] The light-emitting component 3 includes an LED bead 31, which corresponds to the light inlet 201;

[0042] The light-emitting component 3 is tilted, causing the light to shine obliquely downward onto the reflective surface 21;

[0043] refer to Figure 7 The three-dimensional arc-shaped lower reflective surface 21, together with the inclined plane upper reflective surface 22, can form non-circular light spots such as stripes or ellipses. This can cause the top of the light spot to form a more obvious light-dark boundary line, that is, the boundary between the illuminated area and the non-illuminated area is more obvious, thereby meeting the requirements of specific application sites or standards.

[0044] refer to Figure 2 The surface of the lower reflective surface 21 has multiple strip-shaped arc surfaces, that is, the surface of the lower reflective surface 21 is composed of multiple arranged strip-shaped arc surfaces, which helps to reduce glare and facilitates uniform reflection of light.

[0045] refer to Figure 3 The tilt angle θ1 of the upper reflective surface 22 is between 30 degrees and 40 degrees.

[0046] The lower reflective surface 21 also includes side surfaces 23, with side surfaces 23 on both sides of the lower reflective surface 21. The side surfaces 23 are two-dimensional arc-shaped. The upper reflective surface 22 and the lower reflective surface 21 are connected together through the side surfaces 23, making the light outlet or port of the reflector cup 2 circular.

[0047] The tilt angle θ2 of the light-emitting component 3 is between 12 degrees and 20 degrees.

[0048] refer to Figure 2 and Figure 4 The light-emitting component 3 also includes a circuit board 32, and the lamp bead 31 is an LED, which is mounted on the circuit board 32.

[0049] The light-incident surface 20 is provided with an upwardly extending pin 202, the axis of which is perpendicular to the light-incident surface 20. The circuit board 32 is provided with a slot 321, the axis of which is perpendicular to the circuit board 32. The circuit board 32 is assembled above the light-incident surface 20 through the mating structure of the pin 202 and the slot 321, which is convenient for assembly.

[0050] refer to Figure 4 A protrusion 203 is provided at the end of the light-incident surface 20 near the upper reflective surface 22. The protrusion 203 lifts one end of the circuit board 32, causing the circuit board 32 and the light-incident surface 20 to be relatively inclined. For example, the inclination angle θ3 between the circuit board 32 and the light-incident surface 20 is between 2 degrees and 5 degrees, thereby causing the pin 202 and the slot 321 to contact each other at a relatively inclined angle. Due to the mutual inclination, there are contact points A and B between the pin 202 and the slot 321, thereby forming corresponding friction and torque, making the circuit board 32 less likely to loosen, and further improving the stability of the circuit board 32 assembly.

[0051] refer to Figure 1 , Figure 5 and Figure 6 It also includes a rear shell 4; the rear shell 4 has an internal space that can accommodate the reflector and the light-emitting component 3;

[0052] The outer side of the reflector cup 2 is provided with a lug 24, and the lug 24 is provided with a groove 25;

[0053] The interior of the rear shell 4 is provided with a first step 41 and a protrusion 42; the protrusion 42 cooperates with the groove 25;

[0054] The reflector cup 2 slides along the convex strip 42 into the interior of the rear shell 4. When assembled to the preset position, the first step 41 abuts against the lug 24, thereby achieving a limit and making assembly convenient.

[0055] It also includes a lampshade 1, which may be made of a light-transmitting material such as PMMA, PC or glass;

[0056] The lampshade 1 is located at the end of the rear shell 4. The lampshade 1 can be assembled and fixed by means of snap-fit, glue or ultrasonic welding.

[0057] The outer side of the rear shell 4 is provided with a support lug 43, and the support lug 43 is provided with a mounting hole 44. The headlight is assembled to the vehicle frame and other structures through the support lug 43.

[0058] This headlight can be used on electric bicycles, electric vehicles, electric scooters, and other vehicles.

[0059] The above description only discloses some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A reflector-type headlight, characterized in that, Includes a reflector cup (2) and a light-emitting component (3); The reflector cup (2) includes a light-incident surface (20), an upper reflective surface (22) and a lower reflective surface (21), wherein the light-incident surface (20) and the upper reflective surface (22) are both located above the lower reflective surface (21); The upper reflective surface (22) is an upwardly inclined plane; The lower reflective surface (21) has a three-dimensional arc shape; The light-incident surface (20) is provided with a light-incident port (201); The light-emitting component (3) includes an LED bead (31), which corresponds to the light inlet (201); The light-emitting component (3) is tilted.

2. The reflector-type headlight according to claim 1, characterized in that, The surface of the lower reflective surface (21) has multiple strip-shaped arc surfaces.

3. The reflector-type headlight according to claim 1, characterized in that, The tilt angle (θ1) of the upper reflective surface (22) is between 30 degrees and 40 degrees.

4. The reflector-type headlight according to claim 1, characterized in that, The lower reflective surface (21) also includes a side surface (23), and the side surface (23) is provided on both sides of the lower reflective surface (21). The side surface (23) is a two-dimensional arc shape.

5. A reflector-type headlight according to claim 1, characterized in that, The tilt angle (θ2) of the light-emitting component (3) is between 12 degrees and 20 degrees.

6. A reflector-type headlight according to claim 5, characterized in that, The light-emitting component (3) also includes a circuit board (32), and the lamp beads (31) are mounted on the circuit board (32); The light-incident surface (20) is provided with an upwardly extending pin (202), the axis of which is perpendicular to the light-incident surface (20), and the circuit board (32) is provided with a slot (321), the axis of which is perpendicular to the circuit board (32).

7. A reflector-type headlight according to claim 6, characterized in that, The light-incident surface (20) has a protrusion (203) at the end near the upper reflective surface (22); The protrusion (203) lifts one end of the circuit board (32), causing the circuit board (32) and the light-incident surface (20) to be relatively tilted, thereby causing the pin (202) and the slot (321) to collide relatively tilted.

8. A reflector-type headlight according to claim 7, characterized in that, The tilt angle (θ3) between the circuit board (32) and the light-incident surface (20) is between 2 degrees and 5 degrees.

9. A reflector-type headlight according to any one of claims 1-8, characterized in that, It also includes the back shell (4); The reflector cup (2) has a lug (24) on its outer side, and the lug (24) has a groove (25); The interior of the rear shell (4) is provided with a first step (41) and a protrusion (42); The protrusion (42) is engaged with the groove (25).

10. A reflector-type headlight according to claim 9, characterized in that, It also includes a lampshade (1), which is located at the end of the rear shell (4).

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