KR20170003437U - Lamp for vehicle - Google Patents

Abstract

The present invention relates to a lamp for a vehicle, comprising: a plurality of light sources; A substrate on which the plurality of light sources are placed; A light transmitting member coupled to the substrate so as to be positioned in a light emitting direction of the light source, the light transmitting member including an incident portion through which light emitted from the light source is incident and a light transmitting portion through which light incident on the incident portion is emitted to the outside; And a light blocking member disposed in the vicinity of a central region of the light transmitting member and blocking a part of light emitted from the light source.

Description

Lamp for vehicle

The present invention relates to a lamp for a vehicle, and more particularly to a lamp for a vehicle which suppresses occurrence of a hot spot and realizes a uniform surface emitting image.

Generally, the vehicle is equipped with various kinds of lamps having a lighting function for easily confirming an object located in the vicinity of the vehicle at nighttime driving, and a signal function for notifying other vehicle or road users of the running state of the vehicle.

For example, a head lamp and a fog lamp mainly for lighting function, a turn signal lamp, a tail lamp, a brake lamp, A brake marker, a side marker, and the like. Such a vehicle lamp is regulated by the regulations on installation standards and specifications so that each function can be fully exercised.

These lamps emit light to the outside as the light emitted from the light source is irradiated forward, thereby providing discriminating power to the driver at night or providing discrimination power to other driver or pedestrians as they emit light.

Among these lamps, a rear combination lamp having a back-up lamp and a tail-brake lamp and a turn signal lamp as one assembly is installed on both sides of the rear of the vehicle, .

Bulb has been mainly applied as a light source in a conventional rear combination lamp. Recently, however, a light emitting diode (LED) having a long lifetime and excellent lighting performance has been applied.

However, since the light generated in the case of the LED is irradiated with a direct-light type, the light is irradiated with a strong light on the front side of the light source while the light irradiation range is narrow, There is a drawback that spot light is generated as the light is irradiated.

Meanwhile, in recent years, a light guide may be adopted for a vehicle lamp in order to enhance the design of a vehicle and the characteristics of a vehicle. Such a light guide is a light source that emits light when a light emitted from a light source is refracted, It has been expanded to include position lamps, turn signal lamps, and daytime running light lamps.

However, when the light emitted from the light source is incident on the light guide incidence surface, the conventional vehicle lamp is not uniformly dispersed. As described above, a hot spot is formed by condensation at a portion close to the center of the light source There is a problem that product satisfaction is lowered.

Korea Patent Publication No. 2014-0133314

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is a technical object of the present invention to provide a light guide that is capable of being converged at a position close to the center of a light source when light emitted from a light source is incident through an incident surface of the light guide So that the hot spot is suppressed and the product satisfaction can be improved by realizing a uniform surface light emission image.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned may be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a lamp for a vehicle, comprising: a plurality of light sources; A substrate on which the plurality of light sources are placed; A light transmitting member coupled to the substrate so as to be positioned in a light emitting direction of the light source, the light transmitting member including an incident portion through which light emitted from the light source is incident and a light transmitting portion through which light incident on the incident portion is emitted to the outside; And a light shielding member disposed in the vicinity of a central region of the light transmitting member to shield a part of light emitted from the light source.

Here, the light transmitting member may include: a supporting portion extending in one direction from the periphery of the light transmitting portion; And a latching protrusion formed at an end of the support portion.

The light transmitting member may be formed so as to extend from the periphery of the light transmitting portion in the same direction as the supporting portion, and the light transmitting member may be formed to extend in the same direction as the light transmitting member, And may further include a step portion that contacts one surface of the substrate.

A coupling hole may be formed in the substrate, and the coupling protrusion may be inserted into the coupling hole to be snap-fit coupled.

Meanwhile, the light shielding member may be provided with a seating groove having a predetermined depth in the vicinity of the center of the light transmitting unit, and the light blocking member may be disposed in the seating groove.

In this case, the light transmitting member is made of a transparent material, the light shielding member is an opaque material or a translucent material, and any one of the light transmitting member and the light shielding member may be formed earlier than the other member.

In addition, the cross-sectional area of the light shielding member is preferably smaller than the cross-sectional area of the light transmitting portion.

The light blocking member is preferably located on the light path of the light source.

Further, the vehicle lamp according to the embodiment of the present invention may further include a light guide for uniformly emitting light by the light transmitted through the light transmitting member.

Therefore, as the light emitted from the adjacent light sources among the plurality of light sources is partially overlapped, uniform light emission can be performed on the entire surface of the light guide.

Other specific details of the present invention are included in the detailed description and drawings.

According to the vehicle lamp according to the embodiment of the present invention, when light emitted from a light source is incident through an incident surface of a light guide, hot spots due to light condensation are suppressed around an incident surface close to the center of the light source, So that a uniform surface light emission image can be realized and the product satisfaction can be improved.

The effects according to the present invention are not limited by the contents exemplified above, and a more various effects are included in the specification.

1 is a perspective view showing a relationship in which a lamp is mounted on a rear end of a vehicle.
2 is a schematic view showing a process in which light emitted from a light source is irradiated to a light guide in a conventional vehicle lamp.
3 is a perspective view of a vehicle lamp according to an embodiment of the present invention;
Figure 4 is an exploded perspective view of Figure 3;
5 is a perspective view of a vehicle lamp according to an embodiment of the present invention, in which a light transmitting member and a light blocking member are mounted on a substrate.
FIG. 6 is an exploded perspective view of the substrate, the light transmitting member, and the light blocking member in FIG. 5; FIG.
7 is an exploded perspective view showing a coupling relationship between a light transmitting member and a light blocking member in a vehicle lamp according to an embodiment of the present invention.
8 is an assembled perspective view of Fig.
Fig. 9 is a plan view of Fig. 5; Fig.
Fig. 10 is a front view of Fig. 5; Fig.
11 is a sectional view taken along line AA in Fig.
12 is a schematic view showing a process in which light emitted from a light source is irradiated to a light guide to emit light in a vehicle lamp according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the present invention is not limited to the embodiments disclosed herein but may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully inform the owner of the category of design, and the design is only defined by the scope of the claim. Like reference numerals refer to like elements throughout the specification.

Thus, in some embodiments, well known process steps, well-known structures, and well-known techniques are not specifically described to avoid an undesirable interpretation of the present invention.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It should be understood that the terms comprising and / or comprising the terms used in the specification do not exclude the presence or addition of one or more other components, steps and / or operations other than the stated components, steps and / . And "and / or" include each and any combination of one or more of the mentioned items.

Further, the embodiments described herein will be described with reference to perspective views, sectional views, side views, and / or schematic views, which are ideal illustrations of the present invention. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific shapes shown, but also include changes in shapes that are produced according to the manufacturing process. In addition, in the respective drawings shown in the embodiments of the present invention, the constituent elements may be somewhat enlarged or reduced in view of the convenience of explanation.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a vehicle lamp according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a perspective view of a vehicle lamp according to an embodiment of the present invention, and FIG. 4 is an exploded perspective view of FIG.

3 and 4, a vehicle lamp 100 according to an embodiment of the present invention includes a plurality of light sources 120, a substrate 110, a light transmitting member 200, and a light blocking member 300, . ≪ / RTI >

The vehicle lamp 100 according to the embodiment of the present invention may further include a bezel 130, a light source guide 140, and a rudder lens 150.

For reference, the vehicle lamp 100 according to the embodiment of the present invention is a rear combination lamp disposed on both rear sides of the vehicle. However, the present invention is not limited to this, and a headlamp disposed on both sides of the front of the vehicle (A position lamp, a turn signal lamp, a daytime running lamp, etc.) to which a light guide 140 for emitting light is applied.

The vehicle lamp 100 according to the embodiment of the present invention may be configured such that the light source 120 and the light guide 140 are disposed on upper and lower sides with a tail-brake interposed therebetween. Hereinafter, The light source 120 and the light guide 140 disposed on the upper side will be mainly described.

The light source 120 serves to generate surface light in the light guide 140 as light is generated. In the present embodiment, a light emitting diode (LED) may be applied as the light source 120 However, the present invention is not limited thereto, and various light sources such as a laser diode (LD) and a bulb type lamp may be used.

The plurality of light sources 120 may be provided to satisfy a required light amount, and the arrangement of the plurality of light sources 120 may be variously changed.

The light source 120 may be placed on the substrate 110, and the substrate 110 may be seated on one side of the back plate.

In this case, a heat dissipating member (not shown) may be provided between the substrate 110 and the back plate to radiate heat generated from the light source 120 and the substrate 110 to the outside.

The substrate 110 may be electrically connected to the light source 120 and may support the light source 120. Further, the substrate 110 is formed with a plurality of circuits on the substrate surface, and can receive a signal from the controller as to whether the current supplied from the outside or the light source 120 is turned on.

Accordingly, the substrate 110 may be turned on or off by inputting a lighting signal or a light-off signal to the light source 120 through a plurality of circuits formed on the surface.

The light guide 140 functions as a position lamp, a turn signal lamp, a daytime running lamp, and the like, as the light emitted from the light source 120 is incident and refracted.

The light guide 140 may have a substantially bar shape, and a front surface having a predetermined length may be exposed toward the outer lens 150 as an exit surface.

For reference, in the vehicle lamp 100 according to the embodiment of the present invention, it is assumed that the light guide 140 is a surface light-emitting device according to lighting of the light source 120, but a conventional inner lens is applied It is possible.

When light is emitted from the light source 120, the light is incident through the incident surface of the light guide 140, and is emitted to the outside through the exit surface. In this case, the center of the light source 120 and the straight line Direction, and a hot spot may be generated by condensation at a position where the distance is short.

The vehicle lamp 100 according to the embodiment of the present invention is arranged such that it is located at a straight distance from the center of the light source 120 in the light guide 140, The light transmitting member 200 and the light transmitting member 200 are disposed such that the side light B is irradiated to a portion where the distance is relatively long, And may include a light blocking member 300.

FIG. 5 is a perspective view of a vehicle lamp according to an embodiment of the present invention, in which a light transmitting member and a light shielding member are mounted on a substrate, FIG. 6 is a perspective view showing a state in which a substrate, a light transmitting member, And FIG. 7 is an exploded perspective view showing a coupling relationship between the light transmitting member and the light shielding member in the vehicle lamp according to the embodiment of the present invention.

9 is a plan view of Fig. 5, Fig. 10 is a front view of Fig. 5, and Fig. 11 is a sectional view taken along line A-A of Fig.

12 is a schematic view showing a process in which light emitted from a light source is irradiated to a light guide to emit light in a vehicle lamp according to an embodiment of the present invention.

5 to 12, the light transmitting member 200 and the light blocking member 300 provided in the lamp 100 for a vehicle according to the embodiment of the present invention are detachably coupled to the substrate 110 and the back plate, But may be arranged to be disposed in front of the light source 120 that is seated on the substrate 110, that is, in the light emitting direction.

It should be noted that the backplate is not shown separately for the sake of convenience in the drawings supporting the vehicle lamp 100 according to the embodiment of the present invention.

Here, the light blocking member 300 may be disposed near the center of the light transmitting member 200. When the light blocking member 300 is disposed in the vicinity of the center of the light transmitting member 200, the light blocking member 300 is disposed in the same line as the light source 120 and arranged in the light emitting direction of the light source 120, Of the emitted light, the light in the linear direction is intercepted and not irradiated, and the operating relationship therebetween will be described later in more detail.

The light transmitting member 200 includes an incidence portion (not designated by reference numeral) which is disposed in the light output direction of the light source 120, that is, in front of the light source 120, through which the light emitted from the light source 120 is incident, And a light transmitting portion 210 having a predetermined area through which light incident on the incident portion is transmitted and emitted to the outside.

The light transmitting member 2000 includes a supporting portion 230 extending from one side of the light transmitting portion 210 in one direction and a hook-shaped locking protrusion (not shown) formed at the end of the supporting portion 230 232 may be integrally formed.

In the drawings for supporting the lamp 100 for a vehicle according to the embodiment of the present invention, two supporting portions 230 and two engagement protrusions 232 are shown as an example, but the present invention is not limited thereto, Or may be formed in plural.

The light transmitting member 200 may have a structure in which a stepped portion 240 extending from the periphery of the light transmitting portion 210 in the same direction as the latching protrusion 232 is integrally formed.

The light transmitting member 200 is coupled to the substrate 110 at one end of the step portion 240. The light transmitting member 200 is in contact with one surface of the substrate 110, (242) may be formed.

The light transmitting member 200 having such a structure can be manufactured by molding a transparent synthetic resin material so that light generated from the light source 120 can be transmitted when irradiated toward the light guide 140.

Accordingly, the support member 230 of the light transmitting member 200 can have a predetermined self-elasticity.

The light transmitting portion 210 of the light transmitting member 200 has a larger area than the light source 120 and a seating groove 220 having a predetermined depth is formed at a central portion of the light transmitting portion 210, The blocking member 300 may be disposed.

The light blocking member 300 has a smaller area than the entire area of the light transmitting portion 210 of the light transmitting member 200 so that the light blocking member 300 is disposed over the entire area of the light transmitting portion 210 And can be disposed only in a partial area of the center.

The light shielding member 300 may be made of an opaque material or a translucent synthetic resin material or a metal material so that the light shielding member 300 is not transmitted when the light generated from the light source 120 is irradiated toward the light guide 140.

At this time, the light transmitting member 200 is firstly formed by injection molding, and the light blocking member 300 is injection-molded into the mounting groove 220 of the primary molded light transmitting member 200 by secondary injection, The transmissive member 200 and the light blocking member 300 may be integrally formed.

Conversely, the light shielding member 300 is firstly formed by injection molding, and the light transmitting member 200 is injection molded in a second order so that the light shielding member, which is primarily molded, is disposed in the vicinity of the central region, And the light blocking member 300 may be integrally formed.

Alternatively, the light transmitting member 200 and the light shielding member 300 may be molded separately and the light shielding member 300 may be inserted into the seating groove 220 of the light transmitting member 200 .

The coupling relationship between the light transmitting member 200 and the light blocking member 300 having the above-described structure will be described below.

First, as shown in FIG. 8, the light shielding member 300 is inserted into the seating groove 220 formed at the central portion of the light transmitting portion 210 of the light transmitting member 200 so that the light shielding member 300 is inserted The molded light transmitting member 200 and the light shielding member 300 are provided.

The light blocking member 300 and the light transmitting member 200 are coupled to the substrate 110 by inserting the latching protrusion 232 of the light transmitting member 200 into the coupling hole 112 of the substrate 110 .

In this case, the supporting portion 230 and the locking protrusion 232 of the light transmitting member 200 have a predetermined self-elasticity, so that the supporting portion 230 and the locking protrusion 232 of the light transmitting member 200 are slightly pinched when passing through the coupling hole 112 of the substrate 110, The light transmitting member 200 is deformed to the original state by the self-elasticity when the light transmitting member 232 passes through the coupling hole 112. As a result, as shown in FIG. 11, It is possible to maintain the joined state so as to prevent the separation from occurring.

The stepped surface 242 of the light transmitting member 200 is formed on one surface of the substrate 110 in a state in which the latching protrusion 232 of the light transmitting member 200 is inserted into the coupling hole 112 of the substrate 110. [ That is, since the contact surface of the substrate 110 on which the light source 120 is disposed is engaged, the engagement protrusion 232 and the support portion 230 of the light transmission member 200 are engaged with the engagement hole 112 of the substrate 110, As shown in FIG.

That is, the distance between the stepped surface 242 of the stepped portion 240 of the light transmitting member 200 and the engaging end of the engaging projection 232 corresponds to the thickness of the substrate 110 or the substrate 110 and the back plate So that the light transmission member 200 is coupled to the substrate 110, so that the generation of the flow can be suppressed, and the solid connection state can be maintained.

The stepped surface 242 of the stepped portion 240 of the light transmitting member 200 is brought into close contact with one surface of the substrate 110 to be in contact with the surface of the substrate 110, And the engaging protrusion of the engaging protrusion 232 is brought into close contact with the other surface of the substrate 110 so that the light transmitting member 200 can be held firmly in the state where the light transmitting member 200 is coupled to the substrate 110 will be.

As described above, in the state where the light transmitting member 200 is coupled to the substrate 110, the light transmitting portion 210 of the light transmitting member 200 and the light transmitting portion 210 of the light transmitting member 200 The disposed light blocking member 300 may be spaced apart from the light source 120 by a predetermined distance.

When the heat dissipating member is positioned between the substrate 110 and the back plate, a coupling hole may be formed in the back plate. In this case, the coupling protrusion 232 of the light transmitting member 200 is coupled to the coupling And may be coupled through a coupling hole of the heat dissipating member together with the hole 112 to be snap-fit.

As described above, the lamp 100 for a vehicle according to an embodiment of the present invention includes a plurality of light sources 120 disposed on one surface of a substrate 110, When the light source 120 is turned on, the light guide 140 can be prevented from generating hot spots due to the direct light because the blocking member 300 is installed.

12, when the light source 120 is turned on to emit light, the light emitted from the light source 120 is transmitted through the light transmitting portion 210 of the light transmitting member 200, and the light transmitting portion 210 The side light B can be irradiated toward the light guide 140 by being blocked by the light blocking member 300 disposed at the central portion of the light guide 140. [

That is, the light emitted from the light source 120 is blocked by the light blocking member 300, which is positioned on the same line as the light source 120. Accordingly, a part of the light guide 140 positioned at a straight distance from the light source 120 The region is not irradiated with the direct light.

The light emitted from the light source 120 passes through only the light transmitting portion 210 of the light transmitting member 200 which is not located on the same line as the light source 120, Side light (B) is irradiated to only a part of the other part of the light guide (140).

Therefore, since the light guide 120 is not irradiated with the direct light, the hot spot area is not generated as in the conventional case, and only the side light by the light source 120 is irradiated, .

Meanwhile, a dark zone D can be formed in a part of the light guide 140 located at a straight line distance from any one of the light sources 120 as the direct light is blocked. In the dark zone D, The surface light emission is performed as the side light (B) of the light source (120) is irradiated.

That is, since the side light beams B of the adjacent light sources 120 are partially overlapped with each other, a smooth and uniform surface light emission can be achieved on the entire surface of the light guide 140.

Those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the claims of utility model registration described below rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the utility model registration claims and their equivalents are included in the scope of the present invention Should be interpreted as being.

100: vehicle lamp 110: substrate
112: coupling ball 120: light source
140: light guide 200: light transmitting member
210: light transmitting portion 220:
230: Support part 232:
240: stepped portion 242: stepped surface
300: Light blocking member D: Cancer
B: Side light

Claims (9)

A plurality of light sources;
A substrate on which the plurality of light sources are placed;
A light transmitting member coupled to the substrate so as to be positioned in a light emitting direction of the light source, the light transmitting member including an incident portion through which light emitted from the light source is incident and a light transmitting portion through which light incident on the incident portion is emitted to the outside; And
And a light shielding member disposed in the vicinity of a central region of the light transmitting member to shield a part of light emitted from the light source. The method according to claim 1,
The light-
A support portion extending from one side of the periphery of the light transmission portion;
And a latching protrusion formed at an end of the support portion. 3. The method of claim 2,
The light-
A step portion extending from the periphery of the light transmission portion in the same direction as the support portion and contacting the one surface of the substrate such that the light transmission portion and the light source maintain a constant distance in a state where the light transmission member is engaged with the substrate Further comprising: a lamp for a vehicle. 3. The method of claim 2,
A coupling hole is formed in the substrate,
And the engagement protrusion is inserted into the engagement hole to be engaged with the snap fit. 3. The method of claim 2,
A mounting recess having a predetermined depth is formed near the center of the light transmitting portion,
And the light blocking member is disposed in the seating groove. 6. The method of claim 5,
Wherein the light transmitting member is made of a transparent material and the light shielding member is made of an opaque material or a translucent material,
Wherein one of the light transmitting member and the light blocking member is formed before the other member. The method according to claim 1,
Wherein the light blocking member is located on an optical path of the light source. The method according to claim 1,
And a light guide for uniformly emitting light by the light transmitted through the light transmitting member. 9. The method of claim 8,
Wherein light from the light sources adjacent to each other is partially superimposed on the light guide, thereby uniformly illuminating the entire surface of the light guide.

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