Headlamp

Abstract

A headlamp comprises a lamp body, a mask and an optical system, and the optical system comprises a first optical system arranged in the middle of the lamp body and second optical systems arranged on the lamp body and located on the two sides of the first optical system. The first optical system sequentially comprises a first light source, a first dodging plate and a first lens in the light emitting direction, the first light source comprises a first lamp panel and a plurality of first LED lamp beads arranged on the first lamp panel, the first lens comprises a light inlet face, a reflecting face and a light outlet face, the light outlet face is located on the side opposite to the reflecting face, and the first light outlet face is located on the side opposite to the reflecting face. The light emitting surface is in a step shape and comprises a plurality of step surfaces with different heights, the adjacent step surfaces are connected through a connecting surface, the step surfaces are located above the light incident surface, optical textures for scattering light are arranged on the step surfaces, and the connecting surface is a fully reflecting surface. The headlamp is richer in function and applicable to more scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of car light, especially a headlamp. BACKGROUND

[0002] The prior art headlamp only has high beam and low beam functions, such as a car headlamp disclosed in Chinese patent publication No. CN104613400A, which comprises a rear shell, a front cover, a threaded fastener, a reflector and a light source assembly. The rear shell comprises a main shell and a lug. The main shell has an open end, and the lug is arranged on the periphery of the open end. A threaded hole is formed in the lug. The periphery of the front cover is provided with a boss corresponding to the lug. A fixing hole is formed in the boss. The threaded fastener is screwed into the fixing hole and the threaded hole to fix the front cover to the open end of the rear shell. The front cover and the rear shell jointly form a light source cavity. The reflector is accommodated in the light source cavity. The reflector is integrally injection molded by a mass of molding plastic. The reflector comprises a reflecting part and a fixing part. The fixing part is arranged at the bottom of the reflecting part. A through hole is formed in the reflector and penetrates the bottom of the reflecting part and the fixing part along the axial direction of the reflector. The light source assembly comprises a lamp holder and a light-emitting body arranged on the lamp holder. The lamp holder is fixed to the fixing part. The light-emitting body penetrates the through hole away from the lamp holder. The prior art headlamp has a single function and cannot meet more requirements of car light. SUMMARY

[0003] The utility model solves the technical problem of providing a headlamp with more functions and more applicable scenarios.

[0004] To solve the above technical problems, the technical scheme of the utility model is: a headlamp, including lamp body, face shield and optical system, the optical system includes first optical system of being located in the middle position of lamp body and second optical system of being located in the upper lamp body two sides of first optical system, first optical system includes first light source, first homogenizing plate and first lens in turn according to light emitting direction, first light source includes first lamp plate and a plurality of first LED lamp beads arranged on first lamp plate, first lens includes light entrance surface, reflecting surface and light exit surface, light exit surface is located opposite one side of reflecting surface, light exit surface is ladder-shaped, and it includes a plurality of ladder surfaces with different heights, and adjacent ladder surfaces are connected by connecting surfaces, the ladder surface is located above the light entrance surface, and optical texture for light dispersion is arranged on the ladder surface, and the connecting surface is a total reflection surface, second optical system includes second light source and second reflector cup matched with second light source, and second light source includes second lamp plate and second LED lamp bead arranged on second lamp plate. The utility model principle: second optical system is used to form high beam irradiation, satisfies the basic demand of headlamp, first optical system is used to form front position lamp, enriches the function of headlamp, first optical system and second optical system are reasonably arranged, and the overall structure is compact, and two optical systems do not interfere with each other, the reflecting surface and connecting surface of first lens are total reflection surfaces, can improve the light emitting brightness of ladder surface, reduce the influence of stray light on the light emitting of ladder surface, each ladder surface has different heights and is staggered, and when the ladder surface emits light, the whole light exit surface forms a suspended three-dimensional effect.

[0005] As an improvement, the cross section of the first lens is triangular, the bottom surface of the first lens is the light entrance surface, the outer side of the first lens is the reflecting surface, and the inner side of the first lens is the light exit surface.

[0006] As an improvement, the angle between the connecting surface and the light entrance surface is 70-90°.

[0007] As an improvement, the first homogenizing plate is tightly attached to the light entrance surface of the first lens.

[0008] As an improvement, the first LED lamp beads are distributed according to the shape of the light entrance surface of the first lens.

[0009] As an improvement, the first lens is strip-shaped, and two symmetrically arranged first lenses are arranged in the middle of the lamp body.

[0010] As an improvement, an integrally formed first support seat is arranged at the middle position in the lamp body, an integrally formed second support seat is arranged at the two side positions in the lamp body, the first lamp plate is arranged at the top of the first support seat, the second lamp plate is arranged at the side surface of the first support seat, and the second support seat has an arc surface that is attached to the second reflector cup.

[0011] As an improvement, a mounting rack connected to the lamp body is further included, and the first lens and the second reflector cup are fixed on the mounting rack.

[0012] The utility model discloses compared with prior art brings beneficial effect is:

[0013] Second optical system is used to form high beam irradiation, satisfies the basic demand of headlamp, and first optical system is used to form front position lamp, and the function of headlamp is enriched, and first optical system and second optical system layout are reasonable, and the overall structure is compact, and two optical systems do not interfere with each other, and first lens reflection surface and connecting surface are all total reflection surface, can improve the luminance of step surface, and reduce the stray light influence step surface, and each step surface has different height and is staggered, and when step surface emits light, forms the suspended stereoscopic feeling on the whole light emitting surface. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the layout schematic diagram of optical system on the lamp body.

[0015] Figure 2 It is the section view of headlamp.

[0016] Figure 3 It is the exploded view of first optical system.

[0017] Figure 4 It is the section view of first optical system. DETAILED DESCRIPTION

[0018] The utility model will be further explained below in conjunction with the drawings of specification.

[0019] As Figure 1 Shown, a kind of headlamp, including lamp body 4, cover and optical system, the optical system includes first optical system 1 being arranged in the middle position of lamp body 4 and second optical system 2 being arranged on lamp body 4 at the two sides of first optical system 1.

[0020] As Figure 3 、 4As shown, the first optical system 1 comprises, in order of light emission direction, a first light source, a first light uniformity plate 12 and a first lens 11; two first lenses 11 are symmetrically arranged in the embodiment, and the first lens 11 is in a strip shape, forming two light strips in the middle of the headlamp. The first lens 11 comprises a light-in surface 111, a reflecting surface 113 and a light-out surface 112, the light-out surface 112 is located on the opposite side of the reflecting surface 113, the cross section of the first lens 11 is roughly triangular, the bottom surface of the first lens 11 is the light-in surface 111, the outer side of the first lens 11 is the reflecting surface 113, and the inner side of the first lens 11 is the light-out surface 112; the light-out surface 112 is in a stepped shape, comprising a plurality of stepped surfaces 1121 with different heights, adjacent stepped surfaces 1121 are connected by connecting surfaces 1122, the stepped surfaces 1121 are located above the light-in surface 111, and the number of the stepped surfaces 1121 is designed according to requirements; the stepped surfaces 1121 are provided with optical textures for dispersing light, such as vertical textures or corn kernel textures; the connecting surfaces 1122 are total reflection surfaces 113, and the angle between the connecting surfaces 1122 and the light-in surface 111 is 70-90°; after the light enters the first lens 11 from the light-in surface 111, part of the light directly emits from the stepped surfaces 1121, and the other part of the light is reflected by the reflecting surface 113 and the connecting surfaces 1122 and finally emits from the stepped surfaces 1121. The first light uniformity plate 12 is tightly attached to the light-in surface 111 of the first lens 11, the shape of the first light uniformity plate 12 can be similar to that of the light-in surface 111, and the first light uniformity plate 12 can disperse the light of the first LED lamp beads 14, so that the light emission of the first lens 11 is more uniform. The first light source comprises a first lamp plate 13 and a plurality of first LED lamp beads 14 arranged on the first lamp plate 13, and the first LED lamp beads 14 are arranged according to the shape of the light-in surface 111 of the first lens 11. The reflecting surface 113 and the connecting surfaces 1122 of the first lens 11 are total reflection surfaces, which can improve the light emission brightness of the stepped surfaces 1121 and reduce the influence of stray light on the light emission of the stepped surfaces 1121; each stepped surface 1121 has different heights and is staggered with each other, and when the stepped surfaces 1121 emit light, a suspended three-dimensional effect is formed on the light-out surface 112 of the entire lens.

[0021] As Figure 2As shown, the second optical system 2 comprises a second light source and a second reflector cup 21 matched with the second light source, the second light source comprises a second lamp plate 22 and a second LED lamp bead arranged on the second lamp plate 22. An integrally formed first support seat 41 is arranged at a middle position in the lamp body 4, integrally formed second support seats 42 are arranged at two side positions in the lamp body 4, the first lamp plate is arranged on the top of the first support seat 41, the second lamp plate 22 is arranged on the side of the first support seat 41, and the second support seat 42 has an arc surface matched with the second reflector cup 21. The lamp body 4 is provided with a mounting bracket 3, the first lens 11 and the second reflector cup 21 are fixed on the mounting bracket 3, the mounting bracket 3 can not only play a shielding role, but also play a mounting and positioning role. The second optical system 2 is used for forming a high beam irradiation, and meets the basic requirements of the headlamp; the first optical system 1 is used for forming a front position lamp, and enriches the functions of the headlamp; the first optical system 1 and the second optical system 2 are reasonably arranged, the overall structure is compact, and the two optical systems do not interfere with each other.

Claims

1. A headlamp comprising a lamp body, a cover and an optical system, characterized in that: The optical system comprises a first optical system arranged at a middle position of the lamp body and a second optical system arranged on the lamp body on both sides of the first optical system; the first optical system comprises, in sequence according to a light emitting direction, a first light source, a first light uniformizing plate and a first lens; the first light source comprises a first lamp plate and a plurality of first LED lamp beads arranged on the first lamp plate; the first lens comprises an incident surface, a reflecting surface and an emitting surface; the emitting surface is located on an opposite side of the reflecting surface; the emitting surface is in a stepped shape and comprises a plurality of stepped surfaces with different heights; adjacent stepped surfaces are connected through connecting surfaces; the stepped surfaces are located above the incident surface; the stepped surfaces are provided with optical textures for dispersing light; and the connecting surfaces are total reflection surfaces; the second optical system comprises a second light source and a second reflecting cup matched with the second light source; and the second light source comprises a second lamp plate and second LED lamp beads arranged on the second lamp plate.

2. A headlamp according to claim 1, characterized in that: The first lens is in a triangular shape in a cross section; a bottom surface of the first lens is the incident surface; an outer side of the first lens is the reflecting surface; and an inner side of the first lens is the emitting surface.

3. A headlamp according to claim 1, characterized in that: An included angle between the connecting surface and the incident surface is 70-90°.

4. A headlamp according to claim 1, characterized in that: The first light uniformizing plate is tightly attached to the incident surface of the first lens.

5. A headlamp according to claim 1, characterized in that: The first LED lamp beads are distributed according to the shape of the incident surface of the first lens.

6. A headlamp according to claim 1, characterized in that: The first lens is in a strip shape; two first lenses are symmetrically arranged at the middle position of the lamp body.

7. A headlamp according to claim 1, characterized in that: An integrally formed first support seat is arranged at the middle position in the lamp body; integrally formed second support seats are arranged at both side positions in the lamp body; the first lamp plate is arranged on the top of the first support seat; the second lamp plate is arranged on the side surface of the first support seat; and the second support seat has an arc surface matched with the second reflecting cup.

8. A headlamp according to claim 1, characterized in that: The installation frame connected with the lamp body is further provided; and the first lens and the second reflecting cup are fixed on the installation frame.

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