CN211417095U

CN211417095U - Automobile indoor illuminating lamp capable of uniformly emitting light

Info

Publication number: CN211417095U
Application number: CN201922374787.9U
Authority: CN
Inventors: 陈杨俊; 王春华
Original assignee: Zhuhai Winner Auto Lamp Manufacturing Industrial Co ltd
Current assignee: Zhuhai Winner Auto Lamp Manufacturing Industrial Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-04
Anticipated expiration: 2029-12-26

Abstract

The utility model provides an even luminous car indoor lighting lamp, including lamp body, lamp shade, LED light source, circuit substrate, still include the optical lens who arranges between circuit substrate and lamp shade, be equipped with a plurality of leaded light units on the optical lens, the cross section of leaded light unit includes income plain noodles, leaded light face, play plain noodles, terminal surface, it is the front of optical lens to go out the plain noodles, leaded light face is the back of optical lens, income plain noodles and terminal surface are located the optical lens both ends respectively; the light incident surface is an inclined surface, the light guide surface and the end surface are total reflection surfaces, and the light emitting surface is a semi-conductive semi-light emitting surface with the surface subjected to corrosion dermatoglyph treatment; the light guide unit is a revolution body of the cross section about a vertical axis, and a space surrounded by the light incident surface is a light incident port of the LED light source. The illuminating lamp is compact in structure, simple in design, even in light emitting, free of dazzling and low in energy consumption, and is very suitable for being used on automobiles.

Description

Automobile indoor illuminating lamp capable of uniformly emitting light

Technical Field

The utility model relates to an even luminous car interior lighting lamp.

Background

Automotive indoor ambient lighting fixtures (door lights, glove compartment lights, vanity/vanity mirror lights, trunk lights, foot lights, etc.) are devices that provide an area or local sufficient and uniform bright environment for other operations such as vehicle occupants, getting on and off the vehicle, arranging appearance instruments, searching documents, articles or things. Should be shut down as required when the operator is finished with the task.

Although the current automobile environment lighting lamp can also realize the lighting function, the light irradiation effect is not good when the lamp is turned on, the visual surface is in a dotted shape, the visual effect is poor, and the direct or indirect dazzling problem exists. Even if some automobile indoor environment illuminating lamps on the market form a uniform luminous surface through a plurality of LED arrays, the following three problems also exist: 1) the surface punctiform problem still exists under the restriction of electronic circuits; 2) dazzling is easy to generate during close-range observation, and the driving safety of a driver is influenced; 3) needs larger space and power, and is not beneficial to energy conservation, environmental protection and the installation space of the whole vehicle.

SUMMERY OF THE UTILITY MODEL

In order to solve luminous time point form problem, luminous inhomogeneous, dazzle dazzling problem, this application provides a compact structure, low power dissipation, prevent dazzling even luminous car indoor lighting lamp, and concrete implementation is as follows:

an automobile indoor illuminating lamp capable of emitting light uniformly comprises a lamp shell, a lamp shade, an LED light source, a circuit substrate and an optical lens arranged between the circuit substrate and the lamp shade, wherein a plurality of light guide units are arranged on the optical lens, the cross section of each light guide unit comprises a light incident surface, a light guide surface, a light emergent surface and an end surface, the light emergent surface is the front surface of the optical lens, the light guide surface is the back surface of the optical lens, and the light incident surface and the end surface are respectively positioned at two ends of the optical lens; the light incident surface is an inclined surface, the light guide surface and the end surface are total reflection surfaces, the light emergent surface is a semi-conductive semi-light emergent surface with the surface subjected to corrosion dermatoglyph treatment, the light guide unit is a revolution body of the cross section about a vertical axis, and a space surrounded by the light incident surface is a light inlet of the LED light source.

In one or more embodiments of the present invention, the number of the LED light sources is consistent with the number of the light guide units and corresponds to one.

In one or more embodiments of the present invention, the optical patterns are disposed on one or more surfaces of the inner surface of the lamp cover, the light incident surface, and the light guide surface.

In one or more embodiments of the present invention, the LED module further comprises a conductive terminal, wherein the conductive terminal is inserted into the circuit substrate and electrically connected to the LED light source; and the lamp shell is provided with an external socket of the conductive terminal.

In one or more embodiments of the present invention, the light guiding surface and the light emitting surface are complete arc surfaces, and an included angle between a connection line of two arc surface center points and the vertical axis of the cross section is 120-140 °.

In one or more embodiments of the present invention, the included angle is 130 °.

In one or more embodiments of the present invention, the lamp cover is a transparent member with an optical pattern that is etched to form a skin pattern.

In one or more embodiments of the present invention, the lamp housing, the optical lens, and the circuit substrate are connected by a snap-fit connection.

The utility model discloses the beneficial implementation effect who brings is: after the LED light source is lightened, light rays pass through the light inlet, are refracted by the light inlet face, are reflected by the light guide face, are semi-transmitted and semi-emitted by the light emitting face, and are more uniform, free of granular feeling and free of dazzling feeling after being emitted by the lampshade. Moreover, the illuminating lamp is simple and compact in structure, high in light energy utilization rate and low in energy consumption, is very suitable for the occasions with compact space and low power consumption requirements, and has practical application value and popularization value.

Drawings

Fig. 1 is a structural diagram of an automobile indoor illuminating lamp capable of uniformly emitting light disclosed by the utility model;

FIG. 2 is an exploded view of the lamp of FIG. 1;

fig. 3 is a top view of the optical lens of the lighting lamp of the present invention;

FIG. 4 is a cross-sectional view of the optical lens taken along line A-A of FIG. 3;

fig. 5 is a bottom view of the optical lens of the lighting lamp of the present invention;

fig. 6 is a sectional view (half) of the light guide unit of the illumination lamp of the present invention;

FIG. 7 is a schematic view of the light transmission of the light guide unit of the lighting lamp of the present invention;

fig. 8 is a back structure view of a lampshade of a lighting lamp disclosed by the utility model.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in fig. 1-8, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.

The orientation shown in the drawings is not to be considered as limiting the scope of the invention, but merely as a reference to the preferred embodiments, changes in position or addition of numbers or structural simplifications may be made to the product parts shown in the drawings.

The relation of "connected" between the components shown in the drawings and described in the specification can be understood as fixedly connected or detachably connected or integrally connected; the connecting elements can be directly connected or connected through an intermediate medium, and persons skilled in the art can understand the connecting relation according to specific conditions, and can use the connecting elements in a screwed connection or riveting connection or welding connection or clamping connection or embedding connection mode to replace different embodiments in a proper mode.

The terms of orientation such as up, down, left, right, top, bottom, and the like in the description and the orientation shown in the drawings, may be used for direct contact or contact with each other through another feature therebetween; above may be directly above and obliquely above, or it simply means above the other; other orientations may be understood by analogy.

The machining processes used for components having solid shapes can be stamping, forging, casting, wire cutting, laser cutting, casting, injection molding, digital milling, three-dimensional printing, machining, and the like; one skilled in the art can select the materials and the manufacturing process adaptively or in combination according to different processing conditions, cost and precision.

An automobile indoor illuminating lamp capable of emitting light uniformly comprises a lamp shell 1, a lamp shade 2, a plurality of LED light sources 3, a circuit substrate 4 and an optical lens 5 arranged between the circuit substrate 4 and the lamp shade 2, wherein a plurality of light guide units 51 are arranged on the optical lens 5, the cross section of each light guide unit 51 comprises a light incident surface 511, a light guide surface 512, a light emergent surface 513 and an end surface 514, the light emergent surface 513 is the front surface of the optical lens 5, the light guide surface 512 is the back surface of the optical lens 5, and the light incident surface 511 and the end surface 514 are respectively positioned at two ends of the optical lens 5; the light incident surface 511 is an inclined surface, the light guide surface 512 and the end surface 514 are total reflection surfaces, the light emitting surface 513 is a semi-conductive semi-light emitting surface with a surface processed by corrosion dermatoglyph treatment, the light guide unit 51 is a revolution body of the cross section about a vertical axis, a space surrounded by the light incident surface 511 is a light inlet 515 of the LED light source 3, and in order to ensure a light emitting effect, the number of the LED light sources 3 is consistent with that of the light guide units 51 and corresponds to one another. When the LED light source 3 is lighted, the light enters from the light inlet 515 and is refracted by the light inlet surface 511 into different angles to enter the optical lens 5 (as shown in fig. 7), the light guide surface 512 totally reflects the light, so as to improve the utilization rate of the light source, and the light outlet surface 513 processed by corroding dermatoglyph is designed to be a semi-conductive semi-light outlet to play two important roles: first, refract into anomalous direction with optical lens 5's light, and then evenly jet out play plain noodles 513, make optical lens 5 watch on different angles and keep the relatively even state, the second is inside partial light total reflection to lens, make light conduct to optical lens 5's terminal surface 514 direction once more, light gets into optical lens 5 inside once more through terminal surface 514 total reflection, improve the light source utilization ratio when enabling optical lens 5 to jet out more even, and, terminal surface 514 designs into total reflection and can effectively prevent the light leak problem, light is outwards thrown out evenly through lamp shade 2 at last, the dazzling illumination light of nothing. The end surface 514 may suitably extend outwardly at its edge depending on the shape of the optical lens 5. The illuminating lamp can achieve the purpose of uniform light emission without a plurality of LED light sources 3, has compact structure, low power and high light source utilization rate, is energy-saving and environment-friendly, and is very suitable for being used by equipment with limited space, such as an automobile. Optical patterns such as corn patterns, stripes, pyramid patterns, Vcut patterns, hexagonal patterns and the like can be added on one or more surfaces of the lampshade 2, the light incident surface 511 and the light guide surface 512, and the surface of the lampshade 2 can be subjected to corrosion skin pattern treatment, so that light can be emitted more uniformly. The materials of the lampshade 2 and the optical lens 5 are not limited to colorless transparent materials such as PC, PMMA, PS and the like, and decorative optical patterns and corrosion dermatoglyph treatment are arranged, so that the illuminating lamp has a glittering and translucent visual effect without leaking out of the internal structure of the illuminating lamp when not being lightened; when the LED lamp is lighted, the uniform lighting effect can be provided.

Experiments prove that the light guide surface 512 and the light emitting surface 513 are designed into complete cambered surfaces, and the connection line of the central points of the two cambered surfaces and the vertical axis of the cross section form an included angle of 120-140 degrees, so that a better uniform light emitting effect can be achieved, and preferably, the uniform light emitting effect is best when the included angle is about 130 degrees. When the light guide surface 512 and the light emitting surface 513 are in other shapes, optimization can be performed by referring to the design of the included angle.

In order to simplify the design and facilitate installation and maintenance, the LED illuminating lamp further comprises a conductive terminal 6, the conductive terminal 6 is inserted in the circuit substrate 4 and electrically connected with the LED light source 3, the lamp housing 1 is provided with an external insertion port 11 of the conductive terminal 6, and the illuminating lamp is connected with a whole vehicle wire harness through the external insertion port 11 and the insertion piece, so that the design is simpler and more concise. In addition, the lamp housing 1, the optical lens 5 and the circuit substrate 4 are connected and fixed in a buckling mode, the whole installation process does not need screws, and is convenient to install and maintain, the distance between the optical lens 5 and the LED light source 3 is easily controlled in a buckling mode, and the uniform light emitting effect is guaranteed.

The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.

Claims

1. The utility model provides an even luminous car indoor lighting lamp, includes lamp body, lamp shade, LED light source, circuit substrate, its characterized in that: the LED lamp also comprises an optical lens arranged between the circuit substrate and the lampshade, wherein a plurality of light guide units are arranged on the optical lens, the cross section of each light guide unit comprises a light incident surface, a light guide surface, a light emergent surface and an end surface, the light emergent surface is the front surface of the optical lens, the light guide surface is the back surface of the optical lens, and the light incident surface and the end surface are respectively positioned at two ends of the optical lens; the light incident surface is an inclined surface, the light guide surface and the end surface are total reflection surfaces, the light emergent surface is a semi-conductive semi-light emergent surface with the surface subjected to corrosion dermatoglyph treatment, the light guide unit is a revolution body of the cross section about a vertical axis, and a space surrounded by the light incident surface is a light inlet of the LED light source.

2. The uniformly luminous automotive interior lighting lamp according to claim 1, characterized in that: the number of the LED light sources is consistent with that of the light guide units and corresponds to that of the light guide units one by one.

3. The uniformly luminous automotive interior lighting lamp according to claim 2, characterized in that: and one or more surfaces of the inner surface of the lampshade, the light incident surface and the light guide surface are provided with optical patterns.

4. The uniformly luminous automotive interior lighting lamp according to claim 3, characterized in that: the conductive terminal is plugged on the circuit substrate and is electrically connected with the LED light source; and the lamp shell is provided with an external socket of the conductive terminal.

5. The uniformly luminous automotive interior lighting lamp according to claim 1, characterized in that: the light guide surface and the light emitting surface are complete cambered surfaces, and the included angle between the connecting line of the central points of the two cambered surfaces and the vertical axis of the cross section is 120-140 degrees.

6. The uniformly luminous automotive interior lighting lamp according to claim 5, characterized in that: the included angle is 130 °.

7. The uniformly luminous automotive interior lighting lamp according to claim 2, characterized in that: the lampshade is a transparent piece with optical patterns and subjected to corrosion dermatoglyph treatment.

8. The automotive interior lighting lamp uniformly emitting light according to any one of claims 1 to 7, characterized in that: the lamp shell, the optical lens and the circuit substrate are connected in a buckling mode.