KR20230005581A - Rear lamp apparatus for vehicle - Google Patents

Abstract

The present invention relates to a rear lamp device for a vehicle, which includes: a housing disposed at the rear of the vehicle and having an opening formed therein; a light emitting unit installed inside the housing and provided to enable surface light emission; a reflector disposed facing the light emitting unit and reflecting light emitted from the light emitting unit toward the opening; and a lens unit which covers the opening and transmits the light reflected from the reflector to the outside of the housing. The present invention can prevent the formation of a local dark part and improve an external shape.

Description

Vehicle rear lamp device {REAR LAMP APPARATUS FOR VEHICLE}

The present invention relates to a rear lamp device for a vehicle, and more particularly, to a rear lamp device for a vehicle having an atypical indirect reflection surface and a surface light emitting module.

In general, vehicles are provided with various types of lamps having a lighting function for easily identifying an object located around the vehicle during night driving and a signal function for notifying other vehicles or road users of the driving state of the vehicle.

Among these, the rear lamp is a tail light that is installed at the rear of the vehicle and functions to inform the rear vehicle of the vehicle's position during night driving, and a stop light that indicates that the vehicle is decelerating to the rear vehicle. ) function, when the driver manipulates the direction indicator lever to change the direction of the vehicle's driving direction, it blinks to let the rear vehicle recognize the change in driving direction, and to reverse the shift stage for When turned on, it performs the function of a reverse light indicating that the vehicle is moving backwards.

However, as the conventional rear lamp uses a point light source such as an LED, it is difficult to supply light of uniform illumination to the reflective surface, a dark part is generated in an area outside the wide angle range of the point light source, and as the LED is exposed to the outside, Accordingly, there is a problem of impairing the aesthetics of the lamp.

The background art of the present invention is disclosed in Republic of Korea Patent Registration No. 10-1232297 (registered on February 5, 2013, title of the invention: vehicle lamp).

An object of the present invention is to provide a rear lamp device for a vehicle capable of preventing local formation of a dark portion and improving an external shape.

In order to solve the above problems, a vehicle rear lamp device according to the present invention includes: a housing disposed at the rear of a vehicle and having an opening formed therein; a light emitting unit installed inside the housing and capable of surface light emission; a reflection unit disposed to face the light emitting unit and reflecting light emitted from the light emitting unit toward the opening; and a lens unit that covers the opening and transmits the light reflected from the reflector to the outside of the housing.

In addition, the light emitting unit, the cover portion fixed to the inside of the housing; a light source unit installed in the cover unit and receiving power to generate light; a diffusion unit disposed to face the light source unit and diffusing light generated from the light source unit into the housing; and a support portion fixed to the cover portion to support the diffusion portion.

In addition, the support portion may include a body portion extending from the diffusion portion and inserted into an insertion portion penetrating the cover portion; a guide portion extending from the body portion and guiding insertion of the body portion into the insertion portion; a departure prevention unit extending from the guide unit and contacting the cover unit to prevent the body unit from being separated from the cover unit; and a close contact portion extending from the separation preventing portion and being in close contact with the inner surface of the insertion portion.

In addition, the body portion is provided as a pair and is spaced apart from each other by a predetermined interval.

In addition, the guide part extends from an end of the body part toward the outside of the body part at an angle of inclination.

In addition, the separation prevention unit is in contact with the upper surface of the cover unit as the body unit is inserted into the insertion unit by a predetermined distance or more.

In addition, the contact portion is provided to be elastically deformable.

In addition, the reflecting part reflects the light emitted from the light emitting part at different angles.

In addition, the reflector is provided in a polygonal shape.

In addition, aluminum (Al) is deposited on the surface of the reflector.

In addition, the reflection part includes a reflection performance enhancement part extending along the inner sidewall of the housing.

In addition, the reflective performance enhancement portion is characterized in that formed in the form of a curved surface curved with a predetermined curvature.

In the vehicle rear lamp device according to the present invention, since the light emitting part is provided to enable surface light emission, it is possible to prevent the occurrence of dark parts formed inside the housing, thereby improving the lighting quality, and improving the appearance by preventing direct exposure of LEDs to the outside. can do.

In addition, in the rear lamp device for a vehicle according to the present invention, as the front surface is formed in an irregular shape so that the reflector can reflect light emitted from the light emitting unit at different angles, it is possible to implement images such as a sense of jewelry or a three-dimensional effect, thereby improving visibility and Aesthetics can be improved.

In addition, in the rear lamp device for a vehicle according to the present invention, a sense of connection between inside lamps and outside lamps disposed on both sides of a trunk door boundary can be increased by the reflective performance enhancing portion formed on the sidewall of the housing.

1 is a perspective view schematically illustrating the configuration of a rear lamp device for a vehicle according to an embodiment of the present invention.
2 to 3 are enlarged views illustrating the configuration of a rear lamp device for a vehicle according to an embodiment of the present invention from different viewpoints.
4 is a cross-sectional view schematically illustrating the configuration of a rear lamp device for a vehicle according to an embodiment of the present invention.
5 is an exploded perspective view schematically illustrating a configuration of a light emitting unit according to an embodiment of the present invention.
6 is a cross-sectional view schematically illustrating an installation state of a support unit according to an embodiment of the present invention.
7 is a perspective view schematically illustrating a configuration of a support unit according to an embodiment of the present invention.

Hereinafter, an embodiment of a vehicle rear lamp device according to the present invention will be described with reference to the accompanying drawings.

In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, definitions of these terms will have to be made based on the content throughout this specification.

In addition, in this specification, when a part is said to be “connected (or connected)” to another part, this is not only the case where it is “directly connected (or connected)”, but also “with another member in between” It also includes cases where it is indirectly connected (or connected). In this specification, when it is said that a certain part "includes (or includes)" a certain component, this does not exclude other components unless otherwise stated, but "includes (or includes)" other components. It means you can.

Also, like reference numerals may refer to like elements throughout this specification. Even if the same reference numerals or similar reference numerals are not mentioned or described in a particular drawing, the numerals may be described based on another drawing. In addition, even if there are parts not marked with reference numerals in specific drawings, the parts can be described based on other drawings. In addition, the number, shape, size, and relative difference of the detailed components included in the drawings of the present application are set for convenience of understanding, and may be implemented in various forms without limiting the embodiments.

1 is a perspective view schematically showing the configuration of a rear lamp device for a vehicle according to an embodiment of the present invention, and FIGS. 2 and 3 show the configuration of a rear lamp device for a vehicle according to an embodiment of the present invention from different viewpoints. 4 is an enlarged view, and FIG. 4 is a cross-sectional view schematically illustrating a configuration of a rear lamp device for a vehicle according to an embodiment of the present invention.

1 to 4 , a vehicle rear lamp device 1 according to an embodiment of the present invention includes a housing 100, a light emitting unit 200, a reflecting unit 300, and a lens unit 400. .

The housing 100 forms a schematic appearance of the vehicle rear lamp device 1 according to an embodiment of the present invention, and supports the light emitting part 200, the reflecting part 300, and the lens part 400 as a whole, which will be described later. do. The housing 100 is disposed on both sides of the rear of the vehicle. The housings 100 are provided as a pair and may be installed to be separable from each other based on the boundary line of the trunk door (not shown). The housing 100 according to one embodiment of the present invention may be exemplified as the housing 100 disposed outside the width direction of the vehicle based on the boundary line of the trunk door.

The housing 100 has an empty interior to provide a space in which the light emitting part 200 and the reflecting part 300, which will be described later, can be installed. The inner space of the housing 100 may be partitioned into a plurality of areas. More specifically, the inner space of the housing 100 includes a tail lamp area notifying the vehicle's position to a rear vehicle at night, a stop lamp area notifying the vehicle's stop or deceleration state to the rear vehicle, and a side marker lamp notifying the vehicle's location and vehicle width. area, a reverse lamp area notifying the reversing state of the vehicle, and a turn signal lamp area notifying the traveling direction of the vehicle. In this embodiment, the case where the light emitting part 200 and the reflecting part 300 are installed in a tail lamp area among a plurality of areas inside the housing 100 will be described as an example. The specific shape of the housing 100 is not limited to the shapes shown in FIGS. 1 to 4 , and various design changes are possible depending on the type and design of the vehicle.

An opening 110 is formed on one side of the housing 100 so that light generated from the light emitting unit 200 can be emitted to the outside of the vehicle. The opening 110 according to an embodiment of the present invention penetrates the rear surface of the housing 100 in a direction parallel to the front and rear directions of the vehicle. The size and shape of the cross-section of the opening 110 can be variously designed according to the size and shape of the lens unit 400 to be described later.

The light emitting unit 200 is installed inside the housing 100 and generates light. The light emitting unit 200 is provided to enable surface light emission. More specifically, the surface of the light emitting unit 200 facing the reflecting unit 300 to be described later is capable of emitting light with uniform illumination as a whole. Accordingly, the light emitting unit 200 can prevent the occurrence of a dark part formed inside the housing 100 according to the limit of the wide angle of a point light source such as an existing LED. In addition, the light emitting unit 200 may improve the appearance by preventing direct exposure of the LED to the outside.

5 is an exploded perspective view schematically illustrating a configuration of a light emitting unit according to an embodiment of the present invention.

Referring to FIG. 5 , the light emitting unit 200 according to an embodiment of the present invention includes a cover unit 210, a light source unit 220, a diffusion unit 230, and a support unit 240.

The cover part 210 is fixed inside the housing 100 and supports the light source part 220, the diffusion part 230, and the support part 240 as a whole. The cover part 210 according to an embodiment of the present invention is formed to have a substantially “L” cross section and is disposed above the housing 100 . The cover part 210 may be assembled to the housing 100 by bolting, fitting, or the like and supported inside the housing 100 .

An insertion portion 211 into which a support portion 240 to be described later is inserted is formed in the cover portion 210 . The insertion part 211 according to an embodiment of the present invention may be formed to have a shape of a hole vertically penetrating the upper and lower surfaces of the cover part 210 . Insertion units 210 may be provided as a pair and spaced apart from each other on both left and right sides of cover unit 210 . The cross-sectional shape and size of the insertion part 210 can be variously changed according to the shape of the support part 240 to be described later.

The light source unit 220 is installed on the cover unit 210 and receives power to generate light. The light source unit 220 according to an embodiment of the present invention is supported by the cover unit 210 and is electrically connected to a printed circuit board (PCB) provided with a power circuit or control circuit, and the printed circuit board to turn on or It may include an LED light source that is turned off. The light source unit 220 is installed to emit light toward the lower side of the cover unit 210 so that the light can be incident to the diffusion unit 230 to be described later. The light source unit 220 may be connected to the ECU of the vehicle and selectively control lighting or illumination.

The diffusion unit 230 is disposed to face the light source unit 220 and diffuses light generated from the light source unit 220 into the housing 100 . The diffusion unit 230 according to an embodiment of the present invention is formed to have a flat plate shape, and the upper surface is disposed to face the lower surface of the cover unit 210 . The shape of the diffusion part 230 is formed to have a shape corresponding to the shape of the upper space of the cover part 210 or the housing 100 . The diffusion part 230 may include a resin material. More specifically, the diffusion unit 230 may include a polycarbonate resin, a polystyrene-based resin, a polyolefin-based resin, or a fluorine-based resin. Diffusion unit 230 has an inorganic diffusion agent such as calcium carbonate, barium sulfate, titanium oxide, aluminum hydroxide, silica, glass, talc, micer, white carbon, magnesium oxide, zinc oxide, styrenic polymer particles, or acrylic polymer. An organic diffusion agent such as particle or siloxane polymer may be included.

The support portion 240 extends from the diffusion portion 230 and is fixed to the cover portion 210 to support the diffusion portion 230 relative to the cover portion 210 .

6 is a cross-sectional view schematically illustrating an installation state of a support unit according to an embodiment of the present invention, and FIG. 7 is a perspective view schematically showing a configuration of a support unit according to an embodiment of the present invention.

Referring to FIGS. 6 and 7 , the support part 240 according to an embodiment of the present invention includes a body part 241, a guide part 242, a separation preventing part 243, and a contact part 244.

The body part 241 extends from the diffusion part 230 and supports the guide part 242, the separation preventing part 243, and the close contact part 244, which will be described later. The body part 241 is inserted into the insertion part 211 formed through the cover part 210 . The body part 241 according to an embodiment of the present invention may be formed to have a rod shape extending vertically upward from the upper surface of the diffusion part 230 . The body parts 241 are provided as a pair and are spaced apart from each other by a predetermined distance and face each other. The pair of body parts 241 are provided to be elastically deformable.

The guide portion 242 extends from the body portion 241 and guides insertion of the body portion 241 into the insertion portion 211 . The guide part 242 according to an embodiment of the present invention extends downwardly from the upper end of the body part 241 toward the outer side of the body part 241 at an angle of inclination. The guide parts 242 are provided in pairs and are respectively disposed at ends of the pair of body parts 241 . As the body part 241 is inserted into the insertion part 211, the guide part 241 comes into contact with the inner surface of the insertion part 211 and deforms the pair of body parts 241 in a direction in which they are brought together. Accordingly, the guide portion 241 may guide the body portion 241 to be smoothly inserted into the insertion portion 211 without interfering with the lower surface of the cover portion 210 .

The separation preventing portion 243 extends from the guide portion 242 and comes into contact with the cover portion 210 to prevent the body portion 241 from being separated from the cover portion 210 . The separation preventing part 243 according to an embodiment of the present invention may be formed to have a stepped shape extending horizontally from the end of the guide part 242 toward the side surface of the body part 241 . As the body part 241 is inserted into the insertion part 211 by a predetermined distance or more, the separation preventing part 243 protrudes upward from the cover part 210, and the lower surface comes into contact with the upper surface of the cover part 210. Accordingly, the detachment prevention unit 243 may prevent the body portion 242 from being moved downward from the cover portion 210 by its own weight. The separation preventing parts 243 may be provided as a pair and individually extend from the ends of the pair of guide parts 242 .

The close contact portion 244 extends from the separation preventing portion 243 and adheres to the inner surface of the insertion portion 211 . The contact portion 244 is provided to be elastically deformable. The close contact part 244 is in close contact with the inner surface of the insertion part 211 by its own elastic restoring force when the separation preventing part 243 is in contact with the upper surface of the cover part 210 . Accordingly, the close contact part 244 can strengthen the fixing force of the support part 240 to the cover part 210, and light emitted from other areas of the housing 100 passes through the gap of the insertion part 211 to the diffusion part ( 230) can be prevented. The close contact parts 244 may be provided as a pair and individually extend from the pair of separation preventing parts 243 .

The close contact part 244 according to an embodiment of the present invention may include a close contact body 244a and a close contact member 244b.

The close contact body 244a may be formed to have a flat plate shape extending vertically downward from the end of the separation preventing part 243 . The outer surface of the close contact body 244a is disposed to face the inner surface of the insertion part 211 in parallel. A gap between the pair of close contact bodies 244a may be formed to have a value corresponding to the width of the insertion part 211 .

The contact member 244b may be formed to have a shape of a bar cut at a predetermined angle from the contact body 244a toward the inner surface of the insertion part 211 . The contact member 244b is provided to be elastically deformable around a connection point with the contact body 244a. When the close contact body 244a is disposed facing the inner surface of the insertion part 211, the contact member 244b adheres to the inner surface of the insertion part 211 by its own elastic restoring force.

The reflector 300 is installed inside the housing 100 and is disposed to face the light emitting unit 200 and the opening 110 . The reflector 300 reflects light emitted from the light emitter 200 toward the opening 110 . The reflector 300 according to an embodiment of the present invention may be formed to have a spherical shape in which a front surface disposed to face the light emitting unit 200 and the opening 110 is concavely depressed. The reflector 300 may be fixed to the housing 100 by bolting or fitting and supported inside the housing 100 .

The front surface of the reflector 300 may be formed in an irregular shape to reflect light emitted from the light emitter 200 at different angles. More specifically, the front surface of the reflector 300 may be provided in a polygonal shape in which unit reflection surfaces having polygonal cross-sectional shapes are arranged at different angles. Accordingly, the reflector 300 can implement an image such as a sense of jewelry or a three-dimensional effect in the light emitted from the light emitting unit 200, thereby improving visibility and aesthetics.

The reflector 300 may be manufactured by injection molding. After the reflector 300 is injection molded, aluminum (Al) may be deposited on the front surface to increase reflectance of light emitted from the light emitting unit 200 .

Referring to FIGS. 2 and 3 , the reflector 300 according to an embodiment of the present invention includes a reflector performance enhancing unit 310 .

The reflective performance enhancing unit 310 forms the appearance of both ends of the reflecting unit 300 . The reflective performance enhancing portion 310 extends along the inner sidewall of the housing 100 to extend the reflective area of the reflecting portion 300 to a position on the sidewall of the housing 100 . Accordingly, the reflective performance enhancing unit 310 can prevent the occurrence of an optically invalid portion formed at the boundary of the trunk door, thereby increasing a sense of connection between the in-out lamps disposed on both sides of the trunk door boundary. The reflective performance enhancing unit 310 may be formed in the form of a curved surface with a predetermined curvature. Accordingly, the reflective performance enhancing unit 310 is formed in the corner region of the housing 100, that is, the boundary region where the reflective performance enhancing unit 310 starts to extend along the sidewall of the housing 100. occurrence can be prevented.

The lens unit 400 covers the opening 110 to protect the light source unit 200 or the reflector 300 installed inside the housing 100 from external foreign substances or shocks. The lens unit 400 is made of a transparent material through which the inside is projected from the outside, and is provided to transmit light reflected from the reflector 300 to the outside of the housing 100 . The lens unit 400 according to an embodiment of the present invention may include an inner lens 410 and an outer lens 420 sequentially stacked from the opening 110 toward the rear of the vehicle. The specific shapes of the inner lens 410 and the outer lens 420 are not limited to the shapes shown in FIG. 1 , and various design changes are possible depending on the shape of the opening 110 and the like.

The present invention has been described with reference to the embodiments shown in the drawings, but this is only exemplary, and those skilled in the art can make various modifications and equivalent other embodiments. will understand

Therefore, the technical protection scope of the present invention should be determined by the claims below.

1: vehicle rear lamp device 100: housing
110: opening 200: light emitting part
210: cover part 220: light source part
230: diffusion unit 240: support unit
241: body part 242: guide part
243: departure prevention part 244: close contact part
244a: close contact body 244b: close contact member
300: reflection part 310: reflection performance enhancement part
400: lens unit 410: inner lens
420: outer lens

Claims (12)

a housing disposed at the rear of the vehicle and having an opening formed therein;
a light emitting unit installed inside the housing and capable of surface light emission;
a reflection unit disposed to face the light emitting unit and reflecting light emitted from the light emitting unit toward the opening; and
and a lens unit covering the opening and transmitting the light reflected from the reflecting unit to the outside of the housing.
According to claim 1,
the light emitting part,
a cover portion fixed to the inside of the housing;
a light source unit installed in the cover unit and receiving power to generate light;
a diffusion unit disposed to face the light source unit and diffusing light generated from the light source unit into the housing; and
and a support part fixed to the cover part to support the diffusion part.
According to claim 2,
the support,
a body portion extending from the diffusion portion and inserted into an insertion portion penetrating the cover portion;
a guide portion extending from the body portion and guiding insertion of the body portion into the insertion portion;
a departure prevention unit extending from the guide unit and contacting the cover unit to prevent the body unit from being separated from the cover unit; and
and a contacting portion extending from the separation preventing portion and closely adhering to the inner surface of the insertion portion.
According to claim 3,
The rear lamp device for a vehicle, characterized in that the body parts are provided in pairs and are spaced apart from each other by a predetermined interval.
According to claim 3,
The rear lamp device for a vehicle, characterized in that the guide part extends from an end of the body part toward the outside of the body part at a predetermined angle.
According to claim 3,
The vehicle rear lamp device according to claim 1 , wherein the detachment preventing part contacts an upper surface of the cover part as the body part is inserted into the insertion part by a predetermined distance or more.
According to claim 3,
The rear lamp device for a vehicle, characterized in that the close contact portion is provided to be elastically deformable.
According to claim 1,
The rear lamp device for a vehicle, characterized in that the reflecting part reflects the light emitted from the light emitting part at different angles.
According to claim 1,
The rear lamp device for a vehicle, characterized in that the reflector is provided in a polygonal shape.
According to claim 1,
A vehicle rear lamp device, characterized in that aluminum (Al) is deposited on the surface of the reflector.
According to claim 1,
The rear lamp device for a vehicle according to claim 1 , wherein the reflection part includes a reflection performance enhancing part extending along an inner sidewall of the housing.
According to claim 11,
The rear lamp device for a vehicle, characterized in that the reflective performance enhancing part is formed in the form of a curved surface curved with a predetermined curvature.

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