RU36313U1 - VEHICLE INTERIOR LIGHTING DEVICE - Google Patents

Description

VEHICLE INTERIOR LIGHTING DEVICE

The invention relates to lighting devices of vehicles and can be used as a lighting device for the interior of a vehicle, in particular for lighting a passenger compartment.

A device for lighting the interior of a vehicle is known, comprising a cartridge mounted in the corne, an incandescent lamp, a diffuser and a reflector moving relative to the cartridge within a fixed solid angle 1.

A disadvantage of the known interior lighting device is that the device has a complex structure and narrow functional application.

Among the common disadvantages of lighting devices placed on the ceiling of the cabin, the appearance of glare as a result of reflection from the glazing of the cabin and the inability to concentrate the light flux within the local area should be attributed.

A known design of the interior lighting device, in which the light source is movable along the longitudinal axis of the passenger compartment along a fixed rail, which allows local illumination of the passenger and driver seats if necessary, longitudinal movement of the seats. The possibility of additional rotation of the light source in the transverse direction is provided. At the same time, the longitudinal guide of the device is used as a current-carrying contact. 2.

The known design requires additional equipment for the passenger compartment during preparation for production and does not allow, if necessary, to effectively illuminate the desired area of the passenger compartment.

The design of the vehicle interior lighting device is known, which provides for the possibility of both local and general lighting of the vehicle interior by installing two separate light sources with corresponding optical

ZBOjiSie 1-9

IPC 60 Q 3/02, F21S 1/00 F21V21 / 30

elements in one cornus. Each light source provides local illumination of the seats of the passenger and driver, and their simultaneous inclusion is provided 3.

The expansion of the functionality of such a device requires complexity of the design, which affects its reliability.

In the above patents, incandescent lamps that operate under constant shock and vibration loads are used as a radiation source, which leads to low reliability of the devices as a whole.

An alternative is the use of LEDs that are devoid of the above disadvantages and have high light output, reliability and low power consumption, which is especially important in emergency conditions with autonomous power.

A vehicle interior lighting device is known that is used as a source of local lighting when reading in the cabin, including a base, an optical element consisting of a body with a transparent diffuser, a non-replaceable light source based on a cluster of LEDs mounted in the holes of the clip, and means for fixing the base in the cabin taken as a prototype. As a white light emitter, a matrix of LEDs is used, mounted on an electronic board in a round frame, capable of rotating or tilting relative to the horizontal and / or vertical axis and fixed in the selected position 4.

The disadvantage of this device is the design complexity, the use of a large number of elements, which reduces the structural reliability of the product and increases its cost. In addition, the proposed design of the lamp does not allow it to be rotated at large angles, which limits the ability to illuminate individual sections of the cabin. At the same time, the use of a large number of LEDs (36 pieces) is justified only when placing the device at a great distance, but not necessarily when illuminating a workplace where significantly lower illumination values are required 5.

opportunities, increasing the reliability and manufacturability, while minimizing the number of elements in the design of the lamp and non-replaceable light source.

This object is achieved by the fact that in the lighting device of the interior of the vehicle, including the base, an optical element consisting of a body with a transparent diffuser, a non-replaceable light source based on a cluster of LEDs installed in the holes of the holder, and means for fixing the base in the cabin, according to the utility model , the body of the optical element is equipped with a hemispherical shell having a honeycomb structure on the contact surface, and is coupled to it by means of a ball retainer, and with the base - on the spherical surface.

The body is made of two parts, in the polar zone of which a spring-loaded ball retainer is placed, with the possibility of movement in the shell in horizontal and vertical planes within the angles of 0 ° ± 45 °.

The shell in the device, by means of a longitudinal guide groove made along its equator, is interfaced with the shank of the body of the optical element.

The base fastening means is made in the form of a collet with a position lock for installing the device on the upholstery.

In the device, the optical surface of the diffuser is made in the form of a combination of second-order surfaces, in the diametrical planes of which the LEDs of a non-replaceable light source are placed.

In the device, the LEDs are installed at a fixed angle to the axis of the optical element housing, and the light distribution is determined by the geometric shape of the inner surface of the diffuser.

In the device, a non-replaceable light source is based on a cluster of LEDs with different wavelengths.

In the device, the cluster of LEDs is equipped with a pulsed stabilized current source for operation at extreme voltage values in the vehicle electrical system.

Such a constructive solution simplifies the problem of the mutual orientation of the light sources and the diffuser when forming the required light distribution, which is an integral effect of the superposition of the rays passing through the diffuser from each individual LED. When calculating the mathematical model of the diffuser for its industrial use, the optical characteristics of polymeric materials and the spatial light distribution for the selected type of LEDs were taken into account.

For a better understanding of the utility model, it is illustrated by drawings, where

FIG. 1 is a longitudinal section of a General view of the lighting device.

vehicle interior.

FIG. 2 - general view of the optical element

FIG. 3 is a general view of the shell of an optical element.

FIG. 4 - general view of the diffuser.

FIG. 5 is a general view of a holder for accommodating a cluster of LEDs.

FIG. 6 is a general view of a vehicle interior lighting device.

funds (back side).

7 is an assembly drawing of a General view of the device.

The vehicle interior lighting device (Fig. 1), consists of a base 1, in which an optical element (Fig. 2) is located, consisting of the left part 2 and the right part 3 of the body, diffuser 4, holder 5 for installing a cluster of LEDs 6 of the non-replaceable module the light source and the switch 7. Parts 2,3 of the housing of the optical element are paired with the base 1 on the ball surface M with the possibility of rotation relative to each other. The mutual arrangement of the base 1 and parts 2,3 in the shell 8 is provided by a ball retainer 9 of the spatial position of the optical element, preloaded by a flat spring 10 and a shank 11. The retainer 9 is located in the polar zone of the parts 2,3 of the housing.

A wiring harness (not conventionally shown in the drawing) passes through the inner hole of the shank 11 to connect a non-replaceable light source to the vehicle electrical system.

The inner surface of the shell of the ontic element 8 (Fig. 3) within the spherical surface 14 has a honeycomb structure with recesses 15 with a radius of the ball 9. A longitudinal guide groove 16 is made along the equator of the shell 8, in which the shank 11 of the body parts 2,3 moves, which ensures rotation optical element along the horizontal axis.

The working part of the diffuser 4 (Fig. 4) is made in the form of a combination of second-order surfaces 17, the geometry of which provides the required light distribution for this type of lighting device. The LEDs 6 of the non-replaceable light source module are installed in the holder 5 of the optical element body (Fig. 5) and are fixed with latches 18 in the diametric planes of the corresponding fragments 17 of the optical surfaces of the diffuser 4. The non-replaceable light source module is connected to the current stabilizer 19 (Fig. 1).

For ease of use, the socket block 12 is installed on the inner side of the base 1 (Fig.6). To fix the base 1 in the upholstery, the collet clip of the fastening means 13 is equipped with a shoulder clamp 20. The device assembly is ensured by the presence of a system of unified spring latches 18 in the base 1, in parts 2.3 of the optical element body and the holder 5.

It is possible to place the device in the skin of the side (rear) wall of the passenger compartment, next to the berth of the driver. In this case, it can also be used as a reading lamp. Placing several devices above the driver’s, passenger’s and instrument panel with the appropriate installation allows to realize the conditions of both local and general lighting and to avoid unwanted glare due to light scattering by the glazing of the passenger compartment.

The lighting device of the interior of the vehicle operates as follows.

When the switch key 7 is pressed, the voltage on the vehicle electrical system is applied to the non-replaceable light source module, and an injection current flows through the LEDs 6. The generated radiation is formed using the elements of the second-order surfaces 17 of the secondary optics of the diffuser 4 into the required light

distribution within the local area specified by the technical requirements. The rotation of the parts 2,3 of the optical element provides movement of the illuminated area relative to the longitudinal and transverse axes of the passenger compartment. Depending on the number of devices included and their spatial orientation, the required illumination of the vehicle interior is achieved. By changing the geometry of the inner surface of the elements of the diffuser 4 and the angular aperture (angle 20i / 2) of the LEDs 6, it is possible to vary the local light distribution from each device. Spring latches 18, made in the base 1 of the device, provide its reliable vibration-shockproof fastening in the passenger compartment.

Dummy tests of the claimed device showed that in a utility model the implementation of the necessary lighting characteristics of a vehicle interior lighting device is accompanied by the expansion of its functionality. Manufacturability of manufacturing increased by 15-25%.

The design solution of the device compares it favorably with the well-known in connection with the use of modern progressive forms that harmoniously complement each other

The developed device allows you to organically integrate it into the general technical and architectural concept of interior design, using new approaches to solving interior lighting tasks.

For the manufacture of the device, high-tech impact-resistant plastics of color shades that are in harmony with the upholstery are used. Non-replaceable light source made by SMD technology. The compositional solution of the device, based on the modular design principle, does not require complex technological equipment and equipment in the production process. Reliability of the design ensures trouble-free operation of the device, which eliminates subsequent service.

Industrial development of the device is scheduled for 2002-2003.

1.U.S. Patent 5944406, 08/31/1999, IPC B60Q1 / 00

Rotatable compartment light for vehicles / Randall C. Hansen.

2.U.S. Patent 5599086, 04/04/1997, IPC B60Q3 / 02,

Vehicle track lighting system / Kalyan Dutta.

3. Patent of Russia No. 2146624, Cl, 02.10.1998, IPC 7 B60Q3 / 02, F21S8 / 10, Lighting device for the interior of a vehicle / Fedoseev A. A., Ponova V. E., Agafonov V. A.

4. German application No. 19926561, 02.14.2000, IPC F21V21 / 30, F21V19 / 00, F21V5 / 04, F21V17 / 00, F21V29 / 00, F21W101: 08.

Strahler, insbesondere Leseleuchte in Kabinen von Fahrzeugen, Beyerlein Wolfgang.

5.U.S. Patent 6139172, 08/31/2000, IPC B60Q3 / 02, B60R1 / 04

Interior mirror assembly for a vehicle incorporating a solid-state light source, Brent J. Bos, Stephen J. Forbes, Roger L. Veldman.

Sources of information:

Patent Attorney B.A. Khlebtsevich

iri-

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Claims (9)

1. A vehicle interior lighting device, including a base, an optical element consisting of a body with a transparent diffuser, a non-replaceable light source based on a cluster of LEDs installed in the holes of the holder, and a base fastening means in the cabin, characterized in that the body of the optical element is equipped with a hemispherical a shell having a honeycomb structure on the contact surface, and mated to it by means of a ball retainer, and with the base on the ball surface. 2. The device according to claim 1, characterized in that the housing of the optical element, paired with the base on a spherical surface, is made of two parts, in the polar zone of which there is a spring-loaded ball retainer with the ability to move in the shell in horizontal and vertical planes within angles 0 ± 45 °. 3. The device according to any one of claims 1 and 2, characterized in that the shell through a longitudinal guide groove made along its equator is mated to the shank of the optical element body. 4. The device according to any one of claims 1 to 3, characterized in that the means of fastening the base is made in the form of a collet with a position lock for mounting the device on the upholstery. 5. The device according to claims 1 to 4, characterized in that the LEDs are installed at a fixed angle to the axis of the optical element housing, and the necessary light distribution is set by the geometric shape of the inner surface of the diffuser. 6. The device according to claim 5, characterized in that the optical surface of the diffuser is made in the form of a combination of second-order surfaces, in the diametrical planes of which are placed the LEDs of a non-replaceable light source. 7. The vehicle interior lighting device according to any one of claims 1 to 6, characterized in that the emitter is made in the form of a cluster of LEDs with different wavelengths. 8. The vehicle interior lighting device according to any one of claims 1 to 7, characterized in that the cluster of LEDs is equipped with a pulsed stabilized current source for the lamp to operate at voltage limits in the vehicle's on-board network. 9. The vehicle interior lighting device according to any one of claims 1 to 8, characterized in that the base, cage and parts of the body of the optical element are equipped with a system of unified spring latches.