KR20240082075A - Fog lamp for vehicle - Google Patents

Abstract

The present invention relates to a fog lamp for a vehicle. In order to achieve the above object, the fog lamp for a vehicle according to the present invention includes a lamp housing installed on a bumper, an LED module installed in the lamp housing and provided to emit light, and , disposed in front of the LED module and including a lens unit that emits light emitted from the LED module in an exit direction, the LED module is installed on a module base and in the exit direction of the module base, and the lens A light source unit including a plurality of LED elements that emit light toward the module, a heat dissipation unit installed on the module base and provided to dissipate heat generated from the light source unit, and a heat dissipation unit installed on the module base and connected to the light source unit. It includes a connector and an inner lens coupled to the front of the module base to cover the light source unit.

Description

Vehicle fog lamp {FOG LAMP FOR VEHICLE}

The present invention relates to a fog lamp for a vehicle.

Generally, a fog lamp is provided at the rear of a vehicle to ensure smooth visibility for vehicles driving behind in bad weather conditions such as fog or heavy rain.

A conventional fog lamp for a vehicle includes a light source, a reflector that reflects the light of the light source in a certain direction so that the light emitted from the light source can be irradiated in a certain direction, a lens through which the light reflected from the reflector is transmitted, and a space between the reflector and the lens. It may be provided with a shield that prevents light from the light source from being directly irradiated to the lens.

However, since the conventional fog lamp for vehicles is made up of an indirect light structure like this, it requires a certain width up and down and left and right to configure the lamp, so when installed on the bumper, it has to be connected to surrounding parts (especially back beam). There are many restrictions on configuration due to interference. Also, because there are restrictions on the configuration, installation is not easy, and it is difficult to satisfy the light distribution performance required for fog lamps by law.

The present invention was devised to solve the above-described problems, and its purpose is to provide a fog lamp for a vehicle that requires minimal space and reduces costs.

Additionally, the purpose of the present invention is to provide a fog lamp for a vehicle that secures light efficiency to satisfy the light distribution performance required for the fog lamp.

In order to achieve the above object, a fog lamp for a vehicle according to the present invention includes a lamp housing installed on a bumper, an LED module installed in the lamp housing and provided to emit light, and disposed in front of the LED module, It includes a lens unit that emits light emitted from the LED module in an exit direction, wherein the LED module includes a module base and a plurality of units installed in the exit direction of the module base and generating light that irradiates light toward the lens unit. A light source unit including an LED element, a heat dissipation unit installed on the module base and provided to dissipate heat generated from the light source unit, a connector mounted on the module base and connected to the light source unit, and the light source unit to cover the light source unit. Includes an inner lens attached to the front of the module base.

The emission direction is referred to as a first direction, a direction opposite to the first direction is referred to as a second direction, a surface of the module base facing the first direction is referred to as a first surface, and the second direction of the module base is referred to as a first direction. When the surface facing is referred to as the second surface, the heat dissipation unit may include a plurality of heat dissipation fins integrally formed on the second surface of the module base.

The light source unit may further include a substrate on which a plurality of the LED elements are mounted and installed on the first surface of the module base.

The plurality of LED elements may be arranged to be spaced apart in the vertical direction on the substrate.

The inner lens may be provided with an optic having a convex-convex shape on a surface facing the emission direction to reflect light emitted from the LED device and guide it in the first direction.

The optics may be provided in plurality around each of the plurality of LED elements, and the plurality of optics may be formed in a concentric circle shape with the LED elements as the center.

It may further include a fixing member for fixing the LED module to the lamp housing, and the module base may be provided so that the fixing member penetrates, and may further include fixing grooves formed in upper and lower portions of the module base.

The module base further includes a coupling hook protruding from an edge of the module base, and the inner lens may include a hook hole formed at a position corresponding to the position of the coupling hook to be hooked to the module base. You can.

According to an embodiment of the present invention, the LED module is made of a direct optical structure and the component parts are modularized, so there is an advantage that it can be installed in a minimum space and with a minimum number of parts. Therefore, according to the present invention, space utilization can be increased and costs can be reduced.

According to an embodiment of the present invention, since it is made of a direct light structure and space constraints are minimized, light efficiency to satisfy the light distribution performance required for the fog lamp can be secured.

Figure 1 is a perspective view showing a fog lamp for a vehicle according to an embodiment of the present invention, viewed from the second side of the module base.
Figure 2 is an enlarged perspective view of portion A of Figure 1.
Figure 3 is a cross-sectional view showing a cross-section of a fog lamp for a vehicle according to an embodiment of the present invention.
Figure 4 is a perspective view showing a fog lamp for a vehicle according to an embodiment of the present invention, looking at the first side of the module base.
Figure 5 is a side view of a fog lamp for a vehicle according to an embodiment of the present invention as seen from the side.
Figure 6 is a front view of a fog lamp for a vehicle according to an embodiment of the present invention viewed in a second direction.

Hereinafter, embodiments of the present invention will be described in detail according to the attached drawings.

First, the embodiments described below are suitable for understanding the technical features of the fog lamp for a vehicle according to the present invention. However, the technical features of the present invention are not limited to the embodiments described or applied to the embodiments described below, and various modifications and implementations are possible within the technical scope of the present invention.

Figure 1 is a perspective view showing a fog lamp for a vehicle according to an embodiment of the present invention, looking at the second side of the module base, Figure 2 is an enlarged perspective view of portion A of Figure 1, and Figure 3 is an enlarged perspective view of the present invention. is a cross-sectional view showing a cross-section of a fog lamp for a vehicle according to an embodiment of the present invention, Figure 4 is a perspective view showing a fog lamp for a vehicle according to an embodiment of the present invention, and is a view looking at the first side of the module base, and Figure 5 is a view showing the fog lamp for a vehicle according to an embodiment of the present invention. It is a side view of the foglamp for a vehicle according to an embodiment of the invention as seen from the side, and Figure 6 is a front view of the foglamp for a vehicle according to an embodiment of the present invention as seen in a second direction.

The vehicle foglamp 10 according to an embodiment of the present invention may be mounted on a bumper installed on the front or rear of the vehicle. The fog lamp 10 for a vehicle according to the present invention can secure the road surface and front view by operating when forward visibility is not secured with only a headlamp or rear lamp due to fog.

For example, an embodiment of the present invention may be a rear fog lamp mounted on a bumper installed at the rear of a vehicle. However, the embodiment of the present invention is not limited to this, and may be mounted on a bumper cover installed on the front of a vehicle.

Referring to Figures 1 to 6, the fog lamp 10 for a vehicle according to an embodiment of the present invention includes a lamp housing 20, an LED module 100, and a lens unit 30. And the vehicle foglamp 10 may further include a bezel portion 40.

The lamp housing 20 is installed on the bumper. The lamp housing 20 may be installed on the cover of the bumper that forms the exterior of the bumper, or may be installed by being inserted into the bumper. The lamp housing 20 may be provided with a space where a fog lamp is installed.

The LED module 100 is installed in the lamp housing 20 and is equipped to emit light. The LED module 100 may be equipped with components for irradiating light to be modularized so that interference with other surrounding components is minimized.

The lens unit 30 is disposed in front of the LED module 100 and can emit light emitted from the LED module 100 in the exit direction. The lens unit 30 may be installed on the bumper and the lamp housing 20, and may be installed in front of the LED module 100 to protect the LED module 100 and shape the exterior of the vehicle.

The bezel portion 40 is installed between the lamp housing 20 and the lens portion 30 to support the lamp housing 20. Specifically, the bezel portion 40 may be installed on the front part of the lamp housing 20 and may form an edge of the fog lamp 10 for a vehicle. The bezel portion 40 may serve to reinforce the rigidity of the vehicle foglamp 10 and may serve to distribute light inside the lamp by reflecting light emitted from the LED module 100.

The LED module 100 according to an embodiment of the present invention may include a module base 110, a light source unit 120, a heat dissipation unit 130, a connector 140, and an inner lens 150.

The module base 110 forms the body of the LED module 100 and can be provided with a space where the light source unit 120, the heat dissipation unit 130, the connector 140, and the inner lens 150 are installed. . The module base 110 may be fastened to the lamp housing 20 and may be formed in a form that minimizes interference with surrounding components. For example, a module seating portion 21 into which the module base 110 can be inserted may be formed in the lamp housing 20.

Hereinafter, the emission direction is defined as the first direction (D1), and the direction opposite to the first direction (D1) is defined as the second direction (D2). And the surface of the module base 110 facing the first direction D1 is defined as the first surface 111, and the surface facing the second direction D2 of the module base 110 is defined as the second surface 112. do.

The light source unit 120 is installed in the exit direction of the module base 110 and may include a plurality of LED (light emitting diode) elements that radiate light toward the lens unit 30.

In addition, the light source unit 120 may further include a substrate 121, on which a plurality of LED elements 123 are mounted, and may be installed on the first surface 111 of the module base 110. . The board 121 may be a printed circuit board (PCB board), and may be equipped with electrical components to control the operation of the LED element 123.

The heat dissipation unit 130 is installed on the module base 110 and is provided to dissipate heat generated from the light source unit 120.

Specifically, the heat dissipation unit 130 may be provided to radiate heat generated in the substrate 121 and transmitted through the module base 110. The heat dissipation unit 130 may be provided in various forms as long as it can radiate heat generated from the substrate 121.

For example, the heat dissipation unit 130 may include a plurality of heat dissipation fins 131 integrally formed on the second surface 112 of the module base 110. Due to this structure of the heat dissipation fin 131, the area in contact with the air of the heat dissipation part 130 increases and the heat generated in the substrate 121 can be quickly dissipated. However, the configuration of the heat dissipation unit 130 is not limited to the above, and is provided as a part of the LED module 100 and can be used in various forms if it can radiate the heat of the substrate 121 transmitted through the module base 110. Transformation is possible.

The connector 140 is mounted on the module base 110 and connected to the light source unit 120. For example, the module base 110 includes a connector 140 receiving groove 115 with a connector 140 mounting space on the second surface 112, and the connector 140 has a connector 140 receiving groove 115. ) and can be electrically connected to the substrate 121 by penetrating the module base 110.

The inner lens 150 is coupled to the front of the module base 110 to cover the light source unit 120. The inner lens 150 can transmit the light generated by the light source unit 120 and direct it toward the lens unit 30, and is provided to cover the light source unit 120 to protect the light source unit 120.

In this way, the LED module 100 according to an embodiment of the present invention has modular components for irradiating light to the lens unit 30, so assembly with the housing and bezel can be improved.

Additionally, the LED module 100 according to an embodiment of the present invention may have an optical structure that irradiates light directly to the lens unit 30 through the inner lens 150. Accordingly, compared to an indirect lighting structure using a reflector, the present invention can minimize interference with surrounding components provided in the bumper.

Specifically, a back beam is installed in the bumper to block physical shock to the vehicle body. When the fog lamp is made of an indirect optical structure, the space required for installing a reflector increases, and the space between the fog lamp and the back beam inside the bumper increases. There is a problem of mutual interference.

The embodiment of the present invention has the advantage that the LED module 100 is made of a direct optical structure and the component parts are modularized, so that it can be installed in a minimum space and with a minimum number of parts. Therefore, according to the present invention, space utilization can be increased and costs can be reduced.

In addition, according to the present invention, since it is made of a direct light structure and space constraints are minimized, light efficiency to satisfy the light distribution performance required for the fog lamp can be secured.

Meanwhile, referring to FIGS. 4 to 6, a plurality of LED elements 123 may be arranged to be spaced apart in an up and down direction on the substrate 121. As a result, the LED module 100 can be provided in a vertically elongated form.

In addition, a fixing member 25 that secures the LED module 100 to the lamp housing 20 may be further included. In addition, the module base 110 is provided so that the fixing member 25 penetrates, and may further include fixing grooves 113 formed at the upper and lower ends of the module base 110.

For example, the fixing groove 113 may penetrate the module base 110 in the exit direction. Additionally, the fixing groove 113 formed at the upper end of the module base 110 may be opened upward, and the fixing groove 113 formed at the lower end of the module base 110 may be opened downward. Accordingly, when the module base 110 is viewed in the second direction D2, the fixing groove 113 may be formed in a U shape.

And, for example, the fixing member 25 may be provided as a bolt member. And a fixing member fastening groove 22 to which the fixing member 25 is fastened may be formed in the lamp housing 20. The fixing member 25 is fastened to the fixing member fastening groove 22 and the fixing groove 113, thereby fixing the module base 110 to the housing.

In this way, the plurality of LED elements 123 are arranged up and down, and the fixing member 25 is fastened to the top and bottom of the lamp housing 20, so that the LED module 100 can minimize interference with surrounding components. .

Specifically, the back beam installed within the bumper and the shock absorbing member coupled thereto may be arranged horizontally and long. Therefore, when the main components of the vehicle foglamp 10, including the LED module 100, are formed to be horizontally long, mutual interference with surrounding components within the bumper may occur more frequently. The LED module 100 according to an embodiment of the present invention can minimize interference with surrounding components within the bumper by being arranged vertically.

The inner lens 150 may be provided with an optic 153 having a concavo-convex shape on the surface facing the emission direction to reflect the light emitted from the LED element 123 and guide it in the first direction D1.

Specifically, the optic 153 may serve to condense the light by reflection when the light emitted from the LED element 123 passes through the inner lens 150 and direct it to the lens unit 30. The optic 153 may be formed adjacent to the LED element 123.

For example, referring to FIGS. 4 and 6, a plurality of optics 153 may be provided around each of the plurality of LED elements 123. And the plurality of optics 153 may be formed in the form of concentric circles with the LED element 123 as the center.

Specifically, when the inner lens 150 is viewed in the second direction D2, the plurality of LED elements 123 can be arranged to be spaced apart in the vertical direction, and the optic 153 is centered around each LED element 123. It can be arranged in a circular shape. A plurality of optics 153 may be arranged around each LED element 123. A plurality of optics 153 arranged around one LED element 123 may direct the inner lens 150 in the second direction. When viewed from (D2), it can be formed to form a concentric circle centered on the LED element 123.

For example, the inner lens 150 may be formed in the form of a Fresnel lens. A Fresnel lens is a type of condensing lens and is composed of several ring-shaped lenses with a certain thickness to reduce thickness.

As a result, the incident efficiency of light emitted from the LED element 123 entering the lens unit 30 can be improved. Here, the direction of light emitted from the light source unit 120 may change depending on the shape of the optic 153.

Meanwhile, the module base 110 may further include a coupling hook 114 protruding from an edge of the module base 110. In addition, the inner lens 150 may include a hook hole 151 formed at a position corresponding to the position of the coupling hook 114 so as to be hooked to the module base 110. As a result, the inner lens 150 can be stably coupled to the module base 110.

Specifically, the module base 110 may have coupling hooks 114 protruding from the edge to be spaced apart along the circumferential direction. For example, the coupling hook 114 may be formed to correspond to the left and right sides of the module base 110, and may be formed to correspond to the upper and lower sides. However, the location and number of coupling hooks 114 are not limited to the illustrated embodiment.

The inner lens 150 may include a lens body on which the optic 153 is formed and through which light is transmitted, and a coupling part extending in the second direction D2 at the edge of the lens body. A hook hole 151 may be formed in the coupling part at a position corresponding to the coupling hook 114. When combining the module base 110 and the lamp housing 20, the coupling hook 114 may be inserted into the hook hole 151 and hooked. However, the coupling method of the inner lens 150 and the module base 110 is not limited to this, and various coupling methods can be applied.

According to this embodiment of the invention, the LED module is made of a direct optical structure and the component parts are modularized, so there is an advantage that it can be installed in a minimum space and with a minimum number of parts. Therefore, according to the present invention, space utilization can be increased and costs can be reduced.

According to an embodiment of the present invention, since it is made of a direct light structure and space constraints are minimized, light efficiency to satisfy the light distribution performance required for the fog lamp can be secured.

Above, specific embodiments of the present invention have been described in detail, but the spirit and scope of the present invention are not limited to these specific embodiments, and those skilled in the art in the technical field to which the present invention pertains will recognize the patent claims as described in the claims. Various modifications and variations are possible without changing the gist of the present invention.

10: Vehicle fog lamp 20: Lamp housing
25: fixing member 30: lens unit
40: Bezel part 100: LED module
110 module base 111: first side
112: second side 113: fixing groove
114: Coupling hook 115: Connector receiving groove
120: light source unit 121: substrate
123: LED element 130: heat dissipation unit
131: heat dissipation fin 140: connector
150: Inner lens 151: Hook hole
153: Optic D1: First direction
D2: second direction

Claims (9)

Lamp housing installed on the bumper;
An LED module installed in the lamp housing and provided to emit light; and
A lens unit disposed in front of the LED module and emitting light emitted from the LED module in an exit direction,
The LED module is,
module base;
a light source unit installed in the emission direction of the module base and including a plurality of LED elements that emit light toward the lens unit;
a heat dissipation unit installed on the module base and provided to dissipate heat generated from the light source unit;
a connector mounted on the module base and connected to the light source unit; and
A fog lamp for a vehicle including an inner lens coupled to the front of the module base to cover the light source unit. According to paragraph 1,
A fog lamp for a vehicle further comprising a bezel portion installed between the lamp housing and the lens portion to support the lamp housing. According to paragraph 2,
The emission direction is referred to as a first direction, and the direction opposite to the first direction is referred to as a second direction,
When the surface of the module base facing the first direction is referred to as a first surface, and the surface of the module base facing the second direction is referred to as a second surface,
The heat dissipation unit,
A fog lamp for a vehicle including a plurality of heat dissipation fins integrally formed on a second surface of the module base. According to paragraph 3,
The light source unit,
A fog lamp for a vehicle on which a plurality of the LED elements are mounted, and further comprising a substrate installed on the first surface of the module base. According to paragraph 4,
The plurality of LED elements are:
A fog lamp for a vehicle arranged to be spaced apart in the vertical direction on the substrate. According to paragraph 4,
The inner lens is,
A fog lamp for a vehicle including an optic having a convex-convex shape on a surface facing an emission direction to reflect light emitted from the LED device and guide it in the first direction. According to clause 6,
The optics are provided in plurality around each of the plurality of LED elements,
A fog lamp for a vehicle in which the plurality of optics are formed in a concentric circle shape with the LED element as the center. According to paragraph 3,
Further comprising a fixing member for fixing the LED module to the lamp housing,
The module base is,
A fog lamp for a vehicle through which the fixing member penetrates, and further comprising fixing grooves formed at upper and lower ends of the module base. According to paragraph 1,
The module base is,
Further comprising a coupling hook protruding from an edge of the module base,
The inner lens is,
A fog lamp for a vehicle including a hook hole formed at a position corresponding to the position of the coupling hook so as to be hooked to the module base.

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