RU2558500C2 - Multi-functional universal headlamp - Google Patents

Abstract

FIELD: automotive industry.

SUBSTANCE: invention relates to the field of lighting devices on solid-state semiconductor light sources, namely, the multi-functional headlights, and is intended for use on vehicles. The multi-functional universal headlamp comprises a housing, a light module with a solid-state semiconductor light source, a power supply unit with the possibility of remote switching. The protective screen-diffuser is made in combination with the modular optical lenses of the headlight to form a single inner surface. The solid-state semiconductor light sources of one type or the light source are placed on one surface of the light module with the orientation of their optical axes vertical relative to the surface of the light module. For the formation of the distance light a part of them is located on the optical axes of the modular optical lenses in their focus or close to them. To form the lower beam another part is placed with an offset upwards or with the placement upwards and partially left relating to the optical axes of the modular optical lenses in the course of the vehicle motion for left driving and right - for right driving.

EFFECT: improved quality of lighting is achieved to improve road traffic safety.

22 cl, 6 dwg

Description

Technical field

The invention relates to the field of lighting devices on solid-state semiconductor light sources, namely, multifunction headlights (FGM), and is intended for use on vehicles (TC). The invention can be installed on vehicles (car, bus, truck, tractor) as additional lighting, and on vehicles such as fire engines, military vehicles, Ministry of Internal Affairs vehicles, emergency vehicles, railroad cars, etc. as the main and additional lighting. In addition, the invention can be used as a lighting device in industry and the national economy.

State of the art

To date, solid-state semiconductor light sources used initially in the side and rear hybrid car lights, along with traditional light sources, have found wide application in vehicle headlights already for head lighting [2]. The claimed invention, as well as the level of technology (mainly) for it, will be indicated for the classification group "LED array (light emitting diode) + optical element" according to the classification given in the study [2].

So, a number of analogues are known:

- patent for invention RU 2202731 C2, F21V 5/00, G08G 1/095 12/13/2000;

- patent for invention RU 2266466 C1, F21S 8/10, 04/30/2004;

- patent for invention RU 2274801 C2, F21S 8/10, F21Y 101/00 12/05/2003,

in which, in order to ensure a high degree of light flux concentration in a narrow radiation beam, Fresnel lenses are used with the coincidence of the optical axes of the lenses and LEDs, the luminous centers of which are installed in the focus of each lens. The device also belongs to the same series of analogues similar in layout solutions:

- patent for invention RU 2438067 C2, F21S 8/00, 11.29.2007,

intended for use on vehicles. To realize individual FGM lights, narrow-degree LEDs with a double scattering angle are used for white light (dipped beam - 2 - _0.5 = (2 ± 0.5) °, 2Θ _0.01 = (3 ± 0.5) ° and high beam 2Θ _0.5 = 4-8 °), and the light distribution of the headlights is formed by lens diffusers and / or prismatic elements, which are simultaneously a protective glass of each or a group of LEDs or by turning the optical axis of the LEDs. LEDs can be connected to electronic converters with the possibility of autonomous remote inclusion and operation.

A disadvantage of the analog group is the complexity of the headlight design, partly due to the additional functions of blackout.

Another group of analogues are solutions:

- patent RU 118590 U1, B60Q 1/04, 01/12/2012;

- patent RU 124479 U1, B60Q 1/04, 03/06/2012;

- patent RU 124638 U1, B60Q 1/04, 05/21/2012;

- patent RU 124639 U1, B60Q 1/04, 05/21/2012;

- patent RU 124640 U1, B60Q 1/04, 05/21/2012;

- patent RU 131678 U1, B60Q 1/04, F21S 2/00, 08/08/2012,

characterized in that they comprise a housing having a transparent cover mounted on the housing by means of a threaded connection for discharging through it from the housing a light flux emitted by a light module installed inside the housing, having at least one LED and at least one focusing system, the housing is equipped with means for fixing it in an angular position by means of a position controller, which, in the case of implementation according to patent RU 124640 U1, contains a U-shaped bracket, the vertical shelves of which are mounted ovleny on the sidewalls of the housing to be rotatable around the mounting and fixing axis connected to the housing, wherein the horizontal shelf bracket having means for its rotation about an axis perpendicular to the pivot axis of the mounting body around the axis.

The indicated group of solutions allows to significantly simplify the design, as well as quickly change the transparent protective part of the headlight in case of damage. In addition, the headlight according to patent RU 124640 U1 differs by adjusting its position in two planes. However, for this group of analogues there is no guidance on the implementation of headlight for the requirements, for example, GOST R 41.20-99 [1].

Both analogue groups additionally contain a headlight safety glass (in the solution RU 2438067 C2 - the main safety glass 5, along with protective glasses of one or a group of LEDs).

For the prototype of the claimed invention, in terms of main lighting, a decision was made according to document RU 2438067 C2.

The technical task of the invention is to simplify the design of the headlight and reduce its cost. Along the way, the following tasks are solved:

- Improving the quality of lighting to improve road safety: a greater distance illuminated in the dipped beam mode; instant start, unlike xenon lamps (the use of xenon in high beam headlights is impossible, because xenon flashes for 3-8 seconds, the use of xenon lamps in standard optics for halogen lamps is prohibited by the rules of the road);

- fuel economy by reducing installed capacity.

SUMMARY OF THE INVENTION

The invention consists in:

- in the integration of the protective screen-diffuser of the headlight and optics of the headlight in one element;

- in the use of modular lens-based optics, while the required KSS (light intensity curves) of the high and low beams or each of them individually are achieved by:

- placement of part of solid-state light sources, for example, LEDs, on the optical axis of the lenses - high beam;

- placement of solid-state light sources with a shift up or with a shift up and partially to the left in the direction of travel relative to the optical axis of the lenses - dipped beam; for left-hand traffic, right - for right-hand traffic.

- in the use of one type of solid-state light sources;

- in the placement of solid-state light sources on one surface of the light module;

- in the vertical orientation relative to the surface of the light module of the optical axes of solid-state light sources;

- in the use of a single surface of modular optics;

- in the use of solid-state light sources with an angle of ½ brightness = 20-150 °.

Thus, the technical result is achieved in that for the formation of the optical properties of the product, a light module with the location of the light sources in one plane and modular optics combined with a protective screen-diffuser of the headlight, the lenses of which are also located in the same plane, are used. The required power and KSS are achieved by shifting the light sources or the light source relative to the lenses or lenses of modular optics.

Moreover, the number of lenses is not necessarily equal to the number of solid-state semiconductor light sources, moreover, several light sources can be located in the area of one lens, and in some cases there may be no sources under some lenses - this depends on the required power of the device and the required KSS. Moreover, one solid-state semiconductor light source can be used in conjunction with lenses or a lens of modular optics, or one lens with one or more light sources. Thus, depending on the required power and KSS, the light sources are located on the light module with an offset relative to the optical axes of the lenses, on the optical axes of the lenses, on the optical axes of the lenses in their foci or close to them.

The displacement of the light sources relative to the lenses also depends on the necessary CSS: if it is a dipped beam headlight or a dipped plus high beam, then an offset is required. If this headlight works in the mode of additional lighting to the dipped beam, then it is not necessary.

The headlight diffuser screen may also contain one lens of the required size with the required number of LEDs placed under it, so at least one lens is used. Thus, one lens can serve a group of light sources or one light source can work with several lenses of modular optics of the diffuser screen.

The proposed technical solution allows to obtain maximum efficiency, because the maximum luminous flux of LEDs exits along the light axis and near it.

The presence of only one medium for the formation of KSS (only one of the lenses of group optics) allows to achieve minimal losses, in the prototype RU 2438067 C2 there are three of them (reflector and two lenses).

The use of the same solid-state light sources (unification) helps to reduce the cost of the product, in comparison with the prototype, which uses different LEDs.

The prototype provides for the rotation of the optical axes of the LEDs for dipped beam, which complicates the design, in the proposed solution, the optical axes are equally vertically oriented (relative to the surface of the light module).

The headlight, according to the claimed invention, may have an explosion-proof design, provided by pouring the light module and the indoor unit of the power source with an electrical compound.

The headlight, according to the claimed invention, can be equipped with an external power source for quick replacement in case of failure of the device, because the power source has a shorter life compared to the light emitting part.

The power supply to the power supply unit is carried out with the possibility of remote inclusion. Moreover, a separate power supply can be provided to a group of sources or to one dipped-beam source and a group of sources or to one dipped-beam source.

The headlight according to the claimed invention can be used in the form of a dipped-beam light - in this case, the light sources are shifted relative to the optical axes of the lenses; high beam - light sources are located on the optical axes of the respective lenses; near and far - the location of the light sources of the first and second cases is used.

When using the claimed invention in railway transport, in the subway, in cars as a searchlight, on cars as a high beam headlight, i.e. in cases where narrow beam light is needed, mainly the light sources of the headlights are located on the optical axes of the respective lenses, namely in their foci or close to them.

To protect against mechanical damage, the diffuser screen can be made of impact-resistant material, such as polycarbonate.

The headlight according to the claimed invention can be made in the form of a rectangle, or square, or circle.

List of drawings

The invention is illustrated by the following graphic materials presented in figures 1-6:

Figure 1 - Headlight, a perspective view of the front;

Figure 2 - Headlight, a perspective view of the rear;

Figure 3 - Headlight, front view;

Figure 4 - Headlight, cross section;

Figure 5 - Headlight, front view, the housing is conventionally not shown;

6 - Headlight, a perspective view, a diffuser screen is conventionally not shown.

The list of items indicated in the figures

1 - Headlight housing;

1-1 - Power supply compartment;

1-2 - Heat dissipating fins of the body;

2 - Screen-diffuser;

2-1 - Lens group optics screen-diffuser;

3 - Light module;

3-1 - Solid state light source of the light module;

4 - Fixing U-shaped bracket;

4-1 - The hole of the housing to the U-shaped bracket;

5 - Threaded fastener;

6 - The element of attachment of the bracket to the housing;

7 - Sealing element.

The implementation of the invention

The invention is as follows.

The headlight contains a housing 1 with heat-dissipating ribs 1-2, with a compartment 1-1 of the power supply unit 2 and a compartment of the light module 3. Heat-dispersing ribs 1-2 serve to dissipate heat from the headlight and may or may not protrude beyond its dimensions or screen dimensions -diffuser. To seal the internal cavities of the housing 1, a sealing cord 7 is used.

The scattering screen 2 contains lenses 2-1 of modular optics, at least one, with the amount necessary to create the required KSS and the required luminous flux, which is regulated by a set or one light source of the required power. To protect against mechanical damage, it is made of impact resistant material.

At the same time, when using the headlamp on a vehicle, to get high beams, light sources 3-1 are located on the surface of light module 3 in such a way that some of them appear on or near the optical axes of lenses 2-1 of modular optics, and the other part, to obtain the dipped beam, is displaced upward or mixed up and partially to the left relative to the optical axes of the lenses 2-1 in the direction of the vehicle.

When power is applied to light sources 3-1 located on the optical axes of the lenses of modular optics close to their foci, the light flux is concentrated in a narrow beam - high beam.

When applying power to light sources 3-1, located with an offset relative to the optical axis of the lenses of modular optics, the light flux goes down and is pressed against the roadway - dipped beam.

When used in other applications, the required CSS is achieved by shifting the light sources 3-1 relative to the lenses 2-1 of modular optics.

In some cases, several light sources 3-1 can be located under one lens 2-1 to form the required KSS.

The power supply to the power supply unit is carried out with the possibility of remote inclusion.

The headlight is attached to the vehicle structures through a U-shaped bracket 4 with the possibility of rotation of the housing relative to the axis of the holes 4-1 of the mounts to the bracket and with the possibility of turning the headlight together with the bracket. Thus, the headlamp can be adjusted in two mutually perpendicular planes.

Literature

1. GOST R 41.20-99 “Uniform provisions concerning the approval of automotive headlamps with asymmetrical passing-beam lamps and / or main-beam lamps intended for use with halogen filament lamps (H4 lamps)”.

2. Sernov S.P., Balakhonov D.V., Kolontaeva T.V. The current state of automotive lighting with non-replaceable light sources based on LED technology // Science and Technology. 2012. No3. S.37-41.

3. Patent for invention RU 2202731 C2, F21V 5/00, G08G 1/095, 12/13/2000.

4. Patent for invention RU 2266466 C1, F21S 8/10, 04/30/2004.

5. Patent for invention RU 2274801 C2, F21S 8/10, F21Y 101/00, 12/05/2003.

6. Patent for invention RU 2438067 C2, F21S 8/00, 11.29.2007.

7. Patent RU 118590 U1, B60Q 1/04, 01/12/2012.

8. Patent RU 124479 U1, B60Q 1/04, 03/06/2012.

9. Patent RU 124638 U1, B60Q 1/04, 05.21.2012.

10. Patent RU 124639 U1, B60Q 1/04, 05.21.2012.

11. Patent RU 124640 U1, B60Q 1/04, 05.21.2012.

12. Patent RU 131678 U1, B60Q 1/04, F21S 2/00, 08/08/2012.

Claims (22)

1. The headlight is a multifunctional universal headlight, comprising a housing, a light module with at least one solid-state semiconductor light source, a remote control power supply unit, characterized in that the protective diffuser is made in conjunction with the lenses of the headlight modular optics with the formation of one inner surface; solid-state semiconductor light sources of the same type or a light source are placed on the same surface of the light module with the vertical orientation of their optical axes relative to the surface of the light module, and for the formation of high beams, some of them are located on or close to the optical axes of the lenses of modular optics, for of dipped beam formation, the other part is placed upwardly displaced or upwardly and partially to the left relative to the optical axes of the lenses of modular optics in the direction of travel vehicle for left-hand traffic and to the right for right-hand traffic. 2. The headlamp according to claim 1, characterized in that the required KSS (light intensity curve) is achieved by shifting solid-state semiconductor light sources relative to the lenses of the modular optics of the protective diffuser. 3. The headlamp under item 1, characterized in that the housing is made of cast aluminum alloy. 4. The headlamp according to claim 1, characterized in that on the body of the product there is at least one cooling fin protruding or not protruding from the diffuser screen. 5. The headlamp under item 1, characterized in that for protection against moisture and dust between the body and the diffuser screen, a sealant made of elastic material is installed. 6. The headlight according to claim 1, characterized in that there is at least one convex lens in the diffuser screen. 7. The headlight according to claim 1, characterized in that the diffuser screen has at least one concave lens. 8. The headlight according to claim 1, characterized in that the diffuser screen has at least one lens, the surface of which is described by the size of the convex lens. 9. The headlamp under item 1, characterized in that it is made in the shape of a rectangle. 10. The headlamp under item 1, characterized in that it is made in the shape of a circle. 11. The headlamp under item 1, characterized in that it is made in the shape of a square. 12. The headlamp under item 1, characterized in that the solid-state semiconductor light sources have an angle ½ brightness 20-150 °. 13. The headlamp under item 1, characterized in that it has the ability to turn on separately dipped beam, separately high beam, dipped and main beam at the same time. 14. The headlamp according to claim 1, characterized in that the body has a U-shaped bracket with fastening to its sides with the possibility of rotation about an axis passing through the holes of the mounts and the possibility of rotation together with the bracket relative to the structural elements of the vehicle. 15. A headlamp according to claim 1, characterized in that the diffuser screen is made of shockproof light-transmitting material, for example, polycarbonate. 16. The headlight according to claim 1, characterized in that it has an explosion-proof design. 17. The headlight according to claim 1, characterized in that it has at least one solid-state light source mounted on the optical axis of the corresponding lens. 18. The headlight according to claim 1, characterized in that it has at least one solid-state light source mounted with an offset relative to the optical axis of the corresponding lens. 19. The headlight according to claim 1, characterized in that it has at least one lens, in the projection of which at least one solid-state light source is installed. 20. The headlight according to claim 1, characterized in that it can be made in the form of a dipped beam or high beam light. 21. The headlamp under item 1, characterized in that it can be made in the form of a light device dipped and main beam. 22. The headlamp under item 1, characterized in that it can be made in the form of a light device as a headlamp finder.

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