CN206207262U - Dipped headlight group and automobile - Google Patents

Abstract

The utility model provides a low-beam lamp group and an automobile, wherein the low-beam assembly includes a light-emitting part, a reflective bowl, a sunshade plate and a lens, the reflective bowl has an ellipsoidal reflective surface fitted to the surface of an ellipsoid, and the ellipsoidal reflector The surface has an ellipsoidal reflective surface with a first ellipsoidal focus and a second ellipsoidal focus, the first ellipsoidal focus is close to the ellipsoidal reflective surface, the luminous element is located at the first ellipsoidal focus, the light-shielding plate is placed approximately horizontally, and its front end is opened for use For the circular arc opening that blocks the low beam light pattern, the arc opening is roughly located at the focal point of the second ellipsoid, and the upper surface of the shading plate is provided with a reflective tape arranged along the outer edge of the arc opening. Through the setting of the reflective tape, the shading plate not only plays the role of shading, but also plays the role of reflecting light, increasing the brightness of the low beam, improving the light energy utilization rate of the luminous parts, and improving the optical efficiency of the low beam assembly.

Description

Low beam headlights and cars

technical field

The utility model belongs to the field of low-beam lighting for automobiles, in particular to a low-beam lamp group and an automobile.

Background technique

The low beam is generated by the low beam headlight group of the car, and the light pattern of the low beam is mainly formed by directly blocking part of the light by the baffle. Among them, because the baffle blocks part of the light energy, the light energy utilization rate is low.

Utility model content

The purpose of the utility model is to overcome the disadvantages of the above-mentioned prior art, and provide a dipped beam lamp group, which aims to solve the problem of low utilization rate of light energy.

The utility model is achieved in that:

A low-beam lamp set, comprising a luminous element, a reflective bowl, a shading plate and a lens, the reflective bowl has an ellipsoidal reflective surface fitted to the surface of an ellipsoid part, and the ellipsoidal reflective surface has a first ellipsoidal focal point and the ellipsoid reflective surface of the focus of the second ellipsoid, the focus of the first ellipsoid is close to the reflective surface of the ellipsoid, the light-emitting element is located at the focus of the first ellipsoid, the shading plate is placed approximately horizontally, and its The front end is provided with an arc opening for blocking the low beam light type, the arc opening is roughly located at the focus of the second ellipsoid, and the upper surface of the light shielding plate is provided with an arc arranged along the outer edge of the arc opening Reflective tape;

The light emitted by the light-emitting element shoots to the ellipsoidal reflective surface, and then is reflected to the shading plate by the ellipsoidal reflective surface, wherein a part of the light is directly irradiated to the lens through the arc opening, and a part of the light is The light is irradiated to the reflective tape, and then reflected from the reflective tape to the lens.

Optionally, the lens is a plano-convex lens, the lens has a focal point, and the focal point is approximately located at the focal point of the second ellipsoid, wherein the point rays emitted from the focal point are converted by the lens for parallel rays.

Optionally, the low beam headlight set includes a mounting base, and the light-emitting element, the reflecting bowl and the shade are all fixed to the mounting base.

Optionally, the installation base is provided with a sunken platform on the front side of the upper surface for placing the light-shielding plate and matching with the light-shielding plate, and the reflective strip and the light-emitting element are substantially at the same level.

Optionally, the low beam assembly includes a radiator that is attached to the lower surface of the installation base.

Optionally, the low beam lamp group includes a grip assembly for gripping the lens, the grip assembly includes a first grip that abuts against the lower surface of the lens and supports the lens, and A second gripping piece abutting against the upper surface of the lens.

Optionally, the upper surface of the lens is upwardly provided with a first locking protrusion, the lower surface of the lens is downwardly provided with a second locking protrusion, and the first gripping member is provided upwardly for the The first card slot into which the first card protrusion is snapped in, and the second gripper is provided with a second card slot which is arranged downward and for the second card protrusion to snap into;

The first gripping part is provided with a first limiting protrusion in the first slot, and the second gripping part is provided with a second limiting protrusion in the second slot. The first card opening is provided with a first limit bayonet that is engaged with the first limit card protrusion, and the second card opening is provided with a second limit bayonet that is engaged with the second limit card protrusion. bayonet.

Optionally, the reflective tape is a reflective tape formed by electroplating.

Optionally, the light emitting element is an LED chip.

The utility model also provides an automobile, including the above-mentioned low beam lamp group.

Based on the structure of the utility model, through the setting of the reflective tape, the shading plate not only plays the role of shading, but also plays the role of reflecting light, increasing the brightness of the low beam, improving the light energy utilization rate of the light-emitting parts, and improving the low beam assembly. optical efficiency. In addition, since the reflective tape reflects part of the light energy, the absorption of light energy by the shading plate is reduced, and the temperature of the shading plate is prevented from being too high.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the utility model more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the utility model , for those skilled in the art, other drawings can also be obtained according to these drawings on the premise of not paying creative work.

Fig. 1 is a schematic diagram of the overall structure of the low beam assembly provided by the embodiment of the present invention;

Fig. 2 is a structural schematic diagram of another viewing angle of Fig. 1;

Fig. 3 is a schematic diagram of the decomposition structure of the low beam assembly provided by the embodiment of the present invention;

FIG. 4 is a schematic diagram of an exploded structure from another perspective of FIG. 3 .

Explanation of reference numbers:

label name label name 100 Luminous parts 200 reflective bowl 201 Ellipsoid reflector 300 visor 301 arc mouth 302 Reflective tape 400 lens 410 first card bump 411 First limit bayonet 420 Second card convex 421 Second limit bayonet 500 Install the base 501 Shen Tai 600 heat sink 700 gripping components 710 first gripper 711 first card slot 712 The first limit card convex 720 second gripper 721 Second card slot 722 The second limit card convex

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

It should be noted that the orientation terms such as left, right, up, and down in the embodiments of the present utility model are only relative concepts or refer to the normal use state of the product, and should not be regarded as restrictive .

The embodiment of the utility model provides a low-beam lamp group, which is used to generate low-beam lighting for automobiles.

As shown in FIG. 1 to FIG. 4 , the low beam headlight set includes a light emitting element 100 , a reflective bowl 200 , a visor 300 and a lens 400 . The light emitting element 100 is used as a light source of the low beam headlight group. The reflective bowl 200 has an ellipsoidal reflective surface 201 fitted to the surface of an ellipsoid part. The ellipsoidal reflective surface 201 has an ellipsoidal reflective surface 201 with a first ellipsoid focus and a second ellipsoid focus. The first ellipsoid focus is adjacent to the ellipsoid On the spherical reflective surface 201, the light-emitting element 100 is located at the focal point of the first ellipsoid. The shading plate 300 is placed approximately horizontally, and its front end is provided with an arc opening 301 for shielding the low beam light pattern. The low beam light pattern is a light pattern with a straight cut-off line with relatively clear light and shade, and meets the requirements of regulations. Low beam light type. The arc opening 301 is roughly located at the focal point of the second ellipsoid, and the upper surface of the shade plate 300 is provided with a reflective tape 302 arranged along the outer edge of the arc opening 301 .

The light emitted by the light-emitting element 100 shoots to the ellipsoidal reflective surface 201, and then is reflected by the ellipsoidal reflective surface 201 to the light shielding plate 300, wherein a part of the light is directly irradiated to the lens 400 through the arc opening 301, and a part of the light is irradiated to the reflective tape 302, Then it is reflected from the reflective tape 302 to the lens 400 .

Based on the structure of the present utility model, the luminous element 100 emits light at the focus of the first ellipsoid and illuminates the ellipsoidal reflective surface 201. According to the principles of optics and geometry, the light will be reflected to the focus of the second ellipse, and the light will pass through the ellipsoid. The reflection of reflective surface 201 will reach the focus of the second ellipsoid, and because the arc mouth 301 is roughly positioned at the focus of the second ellipsoid, like this, according to optical principles and geometrical principles, the light reflected by the ellipsoidal reflective surface 201 will reach the arc Port 301, and because the light emitted by the light-emitting element 100 is usually a surface light source or a three-dimensional light source, the light reflected by the ellipsoidal reflective surface 201 usually covers the arc port 301 and extends to the reflective tape 302, that is, a part of the light directly passes through the circular arc The arc 301 also has a part of the light irradiated to the reflective tape 302. On the basis, for the light irradiated to the reflective tape 302, this part of the light will be reflected to the lens 400, so that the light that does not directly pass through the arc 301 will also It can be irradiated by the lens 400 under the reflection of the reflective tape 302, which increases the brightness of the low beam, improves the light energy utilization rate of the light emitting element 100, and improves the optical efficiency of the low beam assembly.

Based on the above, it can be seen that through the setting of the reflective tape 302, the shading plate 300 not only plays the role of shading, but also plays the role of reflecting light, increasing the brightness of the low beam, improving the light energy utilization rate of the light emitting element 100, and improving the low beam assembly. optical efficiency. In addition, since the reflective tape 302 reflects part of the light energy, the absorption of light energy by the light shielding plate 300 is reduced, and the temperature of the light shielding plate 300 is prevented from being too high.

In the above, the light-emitting element 100 is an LED, wherein the LED has the advantages of small size, low power consumption, long life, etc., which is beneficial to reduce the production cost of the low beam assembly. Of course, in other embodiments, the luminous element 100 can also be a halogen lamp or a xenon lamp.

In the above, the reflective tape 302 is a reflective tape 302 formed by electroplating. After the light shielding plate 300 is produced, it can be formed by electroplating on the light shielding plate 300. In this way, the material rotation of the light shielding plate 300 can be made of materials with light-reflecting properties, which broadens the material selection of the light shielding plate 300.

As shown in FIG. 1 to FIG. 4 , the lens 400 is a plano-convex lens. The lens 400 has a focal point approximately located at the focal point of the second ellipsoid. The point rays emitted from the focal point are converted into parallel rays by the lens 400 . Based on this structure, since the lens 400 has a focal point, and the focal point is roughly located at the focal point of the second ellipsoid, when the light reaches the focal point of the second ellipsoid, that is, the focal point of the light reaches the lens 400, according to optical principles and geometry It can be seen from the principle that the lens 400 can transmit all the light well.

As shown in FIG. 1 to FIG. 4 , the low beam headlight set includes an installation base 500 , on which the light emitting element 100 , the reflection bowl 200 and the shade 300 are all fixed. In this way, in the assembly process, the luminous part 100, the emitting bowl and the sun visor 300 can be pre-assembled, and then the light emitting part 100, the emitting bowl and the sun visor 300 can be assembled to the car as a whole, instead of separately and separately It can be assembled to the car accurately, which is beneficial to improve the assembly efficiency of the car final assembly.

The mounting base 500 is provided with a sunken platform 501 on the front side of the upper surface for placing the shade 300 , and the reflective tape 302 and the light-emitting element 100 are substantially at the same level.

As shown in FIG. 1 to FIG. 4 , the low beam assembly includes a radiator 600 attached to the lower surface of the installation base 500 . In this way, the heat generated by the light-emitting element 100 can be quickly dissipated through the heat sink 600 to avoid overheating of the light-emitting element 100 . Of course, in this implementation, the mounting base 500 can also be made of a material with high thermal conductivity, which is beneficial to quickly transfer the heat dissipated from the light-emitting element 100 to the heat sink 600 .

As shown in FIGS. 1 to 4 , the low beam headlamp group includes a gripping assembly 700 for gripping the lens 400 , and the gripping assembly 700 includes a first gripping member 710 abutting against the lower surface of the lens 400 and supporting the lens 400 And the second holding member 720 abutting against the upper surface of the lens 400 . Specifically, combining all the above-mentioned structures, the first holding member 710 can be fixedly connected to the heat sink 600 , and the second holding member 720 can be fixedly connected to the installation base 500 .

Further, the upper surface of the lens 400 is provided with a first locking protrusion 410 protruding upward, the lower surface of the lens 400 is downwardly provided with a second locking protrusion 420, and the first gripping member 710 is provided facing upward for the first The first card slot 711 that the card protrusion 410 snaps into, and the second gripper 720 is provided with a second card slot 721 that is arranged downward and for the second card protrusion 420 to snap into; the first gripper 710 is in the first card slot 711 is provided with a first limiting protrusion, and the second gripper 720 is provided with a second limiting protrusion in the second slot 721. The matched first limiting bayonet 411 and the second locking protrusion 420 are provided with a second limiting bayonet 421 which is engaged with the second limiting bayonet 722 . Through the engagement of the first locking protrusion 410 with the first locking groove 711, and the engagement of the first limiting bayonet 411 with the first limiting protrusion 712, the first gripping member 710 limits the lower part of the lens 400 on the horizontal plane. The movement of the second locking protrusion 420 is engaged with the second locking groove 721, and the second limiting bayonet 421 is engaged with the second limiting protrusion 722, and the second gripping member 720 limits the lens 400 The movement of the upper part on the horizontal plane, the second locking protrusion 420 is engaged with the second locking groove 721. Based on this structure, the gripping assembly 700 realizes the connection and fixing of the lens 400 by limiting the front, rear, up, down, left, and right positions of the lens 400, while No external force is applied to the lens 400 to achieve connection and fixation like clamping devices or bolt connection devices.

The utility model also proposes a kind of automobile, and this automobile comprises low-beam lamp group, and the specific structure of this low-beam lamp group refers to above-mentioned embodiment, because this automobile adopts all technical schemes of above-mentioned all embodiment, therefore also has above-mentioned embodiment All the beneficial effects brought by the technical solution will not be repeated here.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present utility model should be included in the utility model. within the scope of protection.

Claims (10)

1. A kind of low beam lamp group, it is characterized in that, comprise luminous part, reflective bowl, light-shielding plate and lens, described reflective bowl has the ellipsoidal reflective surface fitting with an ellipsoid partial surface, described ellipsoidal reflective surface An ellipsoid reflective surface having a first ellipsoid focus and a second ellipsoid focus, the first ellipsoid focus is adjacent to the ellipsoid reflector, the light-emitting element is located at the first ellipsoid focus, and the shading plate It is placed roughly horizontally, and its front end is provided with an arc opening for blocking the low beam light pattern. The arc opening is roughly located at the focus of the second ellipsoid. Reflective tape arranged on the outer edge of the arc opening; The light emitted by the light-emitting element shoots to the ellipsoidal reflective surface, and then is reflected to the shading plate by the ellipsoidal reflective surface, wherein a part of the light is directly irradiated to the lens through the arc opening, and a part of the light is The light is irradiated to the reflective tape, and then reflected from the reflective tape to the lens. 2. The low beam headlight group according to claim 1, wherein the lens is a plano-convex lens, the lens has a focal point, and the focal point is approximately located at the focal point of the second ellipsoid, wherein, The point rays emitted from the focal point are converted into parallel rays by the lens. 3. The low beam headlight group according to claim 1, characterized in that, the low beam headlight group includes a mounting base, and the luminous element, the reflective bowl and the sun visor are all fixed on the mounting base seat. 4. The low beam headlight group according to claim 3, characterized in that, the front side of the upper surface of the installation base is provided with a sunken platform for placing the shading plate and matching with the shading, the The reflective tape is substantially on the same level as the light-emitting element. 5 . The low beam headlight set according to claim 4 , wherein the low beam assembly includes a radiator that is attached to the lower surface of the installation base. 6 . 6. The low beam headlight group according to claim 1, characterized in that, the low beam headlight group includes a holding assembly for holding the lens, and the holding assembly includes a handle that is compatible with the lower surface of the lens. The first holding part abuts against and supports the lens, and the second holding part abuts against the upper surface of the lens. 7. The low beam lamp group according to claim 6, characterized in that, the upper surface of the lens is provided with a first locking protrusion upwardly, and the lower surface of the lens is downwardly provided with a second locking protrusion, so The first grasping part is provided with a first slot which is arranged upwards and is inserted into the first card protrusion, and the second grasping part is provided with a slot which is arranged downwards and is inserted into the second card protrusion. second card slot; The first gripping part is provided with a first limiting protrusion in the first slot, and the second gripping part is provided with a second limiting protrusion in the second slot. The first card opening is provided with a first limit bayonet that is engaged with the first limit card protrusion, and the second card opening is provided with a second limit bayonet that is engaged with the second limit card protrusion. bayonet. 8. The low beam headlight set according to claim 1, characterized in that, the reflective tape is a reflective tape formed by electroplating. 9. The low beam headlight group according to claim 1, characterized in that, the light emitting element is an LED chip. 10. An automobile, characterized by comprising the low beam headlight set according to any one of claims 1-9.