KR200461949Y1 - Fog lamp module for vehicle - Google Patents

Abstract

The present invention relates to a fog lamp module for vehicles, and more particularly to a fog lamp module for vehicles that can be provided integrally with the LED fog lights and can prevent damage due to overheating by adjusting the brightness of the LED.
The fog lamp module for a vehicle according to the present invention comprises a lamp housing constituting a body of a fog lamp and having an open front portion; An upper light source for a fog lamp installed to emit light upward in the lamp housing; A lower light source for a daytime running light that is installed to emit light downward in the lamp housing; A vertical plate extending in the vertical direction, and a horizontal plate extending toward the front from the center of the vertical plate is integrally formed, the upper light source is mounted and supported on the upper surface of the horizontal plate, the lower surface on the lower surface of the horizontal plate A light source is mounted and supported, and the vertical plate comprises: a light source support fixedly coupled to an inner rear wall of the lamp housing; An upper radiating member for guiding the light emitted from the upper light source to spread in the front, up, down, left, and right directions; A lower radiation member for guiding the light emitted from the lower light source toward the front downward side; A lamp cover installed to cover the open front part of the lamp housing and made of a material through which light is transmitted; And a controller configured to control the blinking of the up and down light sources.

Description

Fog Light Modules for Vehicles {FOG LAMP MODULE FOR VEHICLE}

The present invention relates to a fog lamp module for vehicles, and more particularly to a fog lamp module for vehicles that can be provided integrally with the LED fog lights and can prevent damage due to overheating by adjusting the brightness of the LED.

In general, a fog lamp is a lamp that is turned on to prevent a safety accident by ensuring sufficient visibility in foggy and cloudy weather or rainy weather. Such fog lamps are being replaced by LEDs having excellent efficiency and brightness in general bulb lamps. By the way, such LED lamps have a common problem that the heat generation is severe, and a heat dissipation structure or other overheating prevention means for preventing damage caused by such heat generation is urgently required.

On the other hand, when driving in bad weather, such as at night, rainy weather, heavy snow, usually turn on the headlights to ensure visibility and other vehicles to easily identify their vehicles to reduce accidents. Recently, however, research results have been published that turn on the headlights during the day is effective in preventing accidents. Therefore, daytime running lights (DRLs) have been installed in vehicles, especially in Europe. We are trying to prevent accidents by lighting up the time zone. Therefore, it is urgent to introduce daytime driving for safety in Korea.

By the way, although such daytime running is originally intended for accident purposes, it may act as another cause of an accident by obstructing the vision of the oncoming vehicle driver when driving. Therefore, such daytime running lights should be configured so as not to obstruct the vision of the oncoming vehicle driver.

The present invention was devised to solve the above problems, and is provided with a fog light and daytime running lights integrally, so that daytime running lights do not obstruct the vision of the oncoming vehicle driver, and heat generated from the light source The purpose of the present invention is to provide a fog lamp module for a vehicle that can effectively dissipate heat, ensure a lifetime, and improve operation reliability, and prevent damage to a product through brightness control of a light source when overheating.

Fog light module for a vehicle according to the present invention for achieving the object as described above, and a lamp housing constituting the body of the fog light and the front portion is open; An upper light source for a fog lamp installed to emit light upward in the lamp housing; A lower light source for a daytime running light that is installed to emit light downward in the lamp housing; A vertical plate extending in the vertical direction, and a horizontal plate extending toward the front from the center of the vertical plate is integrally formed, the upper light source is mounted and supported on the upper surface of the horizontal plate, the lower surface on the lower surface of the horizontal plate A light source is mounted and supported, and the vertical plate comprises: a light source support fixedly coupled to an inner rear wall of the lamp housing; An upper radiating member for guiding the light emitted from the upper light source to spread in the front, up, down, left, and right directions; A lower radiation member for guiding the light emitted from the lower light source toward the front downward side; A lamp cover installed to cover the open front part of the lamp housing and made of a material through which light is transmitted; And a controller configured to control the blinking of the up and down light sources.

Here, the upper radiation member, the upper surface and the lower surface portion is formed in a spherical shape, the reflecting surface is configured to cover the upper side of the upper light source, the upper reflector to reflect the light emitted from the upper light source; The upper reflector is supported from below, guides the progress of light reflected from the upper reflector, and the rear side supports the lower surface of the upper reflector, but a through-hole is formed so that the upper light source is inserted through the center, and the upper reflector is at the front side. A light source guide, in which a guide groove is formed to re-reflect a portion of the light reflected from the front to guide upwardly; It is coupled to the front portion of the light source guide includes an upper lens and an inner lens for diffusing the light that is reflected from the light source guide.

In addition, the guide groove is a concave groove having a semicircular cross section, and the rear side is preferably rounded in a spherical shape so as to reflect light in all directions.

In addition, a groove is formed on the front surface of the horizontal plate of the light source support so that the upper radiating member is installed on the upper surface of the horizontal plate of the light source support so that the guide groove of the light source guide is seated, and the light source guide is flanged on the front side. It is preferred that the rear of the flange is fixedly coupled by a fastener in a state in which the front of the light source support.

On the other hand, the lower radiation member, the lower side reflecting plate is formed in a spherical shape formed in the front side and the upper side is formed concave down to reflect the light emitted from the lower light source; Consists of a horizontal plate member covering the upper opening of the lower reflecting plate, the through-hole is formed so that the lower light source is penetrated through the central portion of the rear reflector, the light reflecting upward from the lower reflecting plate to reflect the upward movement to guide the front downward side It includes a horizontal reflector.

Here, projections are formed on both sides of the front upper left and right sides of the lower radiation member, and the rotation shaft is inserted through the projection, and the rotation shaft is inserted into and coupled to the rotation shaft groove formed at the outer side of the front side of the horizontal plate of the light source support. The lower radiation member is rotatably coupled to the light source support, and a steering control shaft is installed at the rear side of the lower reflection plate of the lower radiation member so that the lower radiation member can be rotated up and down about the rotation shaft according to the forward and backward movement of the steering control shaft. Do.

The control unit drives the upper light source and the lower light source by the constant current control method, and the upper light source for the fog light is controlled to flash according to the on / off of the fog light switch, and the lower light source for the daytime running light is turned on when the vehicle is started. It is desirable to control so that it is turned off when it is turned off.

The control unit may include: a temperature sensor configured to detect temperatures of the upper light source and the lower light source in real time to prevent overheating of the upper light source and the lower light source; A microcomputer inputting a control signal for turning on the upper light source and the lower light source, and controlling a duty ratio of a pulse width modulation signal based on the input control signal and the signal sensed by the temperature sensor; A PWM module for generating a pulse width modulation signal for driving control of an upper light source and a lower light source according to the control command of the microcomputer; An LED driver for driving the upper light source and the lower light source in a constant current manner based on the pulse width modulation signal generated by the PWM module; The microcomputer compares the signal value sensed and transmitted from the temperature sensor with a pre-stored reference value, and when the detected signal value is greater than or equal to the reference value, by controlling the PWM module to adjust the duty ratio of the pulse width modulated signal, the LED driver is a duty ratio It is preferable that the current is applied to the upper light source and the lower light source based on the adjusted pulse width modulation signal to lower the luminance of the upper light source and the lower light source to reduce the amount of heat generated.

According to the present invention as described above, the fog lights and daytime running lights can be configured as a single module, and the daytime running lights are generally irradiated and configured to be amiable so as not to obstruct the vision of the oncoming vehicle driver. In addition, it is possible to effectively dissipate heat generated from the light source, and to reduce the amount of heat generated by adjusting the brightness during overheating, thereby ensuring the life of the device and at the same time improving the operation reliability.

1 is a perspective view of a fog lamp module for a vehicle according to the present invention,
2 is a partially exploded perspective view of a fog lamp module for a vehicle according to the present invention,
3 is a perspective view of a light source and a radiator of the fog lamp module for a vehicle according to the present invention;
4 is an overall exploded perspective view of a fog lamp module for a vehicle according to the present invention,
5 is a cross-sectional view of a fog lamp module for a vehicle according to the present invention,
6 is a control block diagram of the fog lamp module for a vehicle according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the fog lamp module for a vehicle according to a preferred embodiment of the present invention.

First, as shown in FIGS. 1 to 5, the vehicle fog light module 100 according to the present invention is a second lamp housing assembled in contact with the first lamp housing 110 and the first lamp housing 110. Lamp housing (H) consisting of 120, the front closing member 130 for closing the front portion of the first lamp housing 110 opened, and the rear portion of the second lamp housing 120 is closed The rear finishing member 140, the second lamp housing 120 is assembled in the light source unit 150 for providing fog light and daytime running light, and the room to guide the light emitted from the light source unit 150 to the front A sander 160, a steering control shaft 170 for controlling the steering angle of the light source unit 150, and a controller 180 that is in charge of the overall control of the device, including the flashing or brightness of the light source 150.

Here, the lamp housing H is separated into the first lamp housing 110 and the second lamp housing 120 and configured to be assembled with each other because the light source unit 150 and the radiator 160 may be easily disposed therein. The first lamp housing 110 is provided with a through portion 111 therein, and the front end portion has a locking groove 112 into which the lamp cover 132 is fitted.

The shape and structure of the first lamp housing 110 may be variously modified as necessary. 2 shows a preferred embodiment of such a first lamp housing 110. As shown in (a) of FIG. 2, the first lamp housing 110 may have a circular shape in which the front opening and the rear opening are parallel to each other, and have a separate bracket having bolt holes for vehicle installation ( 113 may be fixedly coupled between the first lamp housing 110 and the second lamp housing 120 by a fastener such as a bolt.

On the other hand, as shown in Figure 2 (b), the first lamp housing 110 has a rear opening is formed in a circular shape, the front opening is formed to be inclined obliquely with respect to the rear opening to form a generally oval shape In addition, the outer circumferential surface may be integrally formed with a bracket 113 having a bolt hole for vehicle installation.

On the other hand, as shown in (c) of Figure 2, the first lamp housing 110 may be configured in a circular shape in which the front opening and the rear opening parallel to each other, the bracket having a bolt hole for installing the vehicle ( 113 is provided integrally on the outer circumferential surface, a separate sub-body 115 formed with an inclined front opening may be coupled to the front surface.

The second lamp housing 120 is provided with a space portion 121 therein, a front end portion is provided with a flange 122 for seating the end of the first lamp housing 110, the first lamp housing on the inner wall side An assembly member 123 for assembling with the 110 is formed, and the housing heat dissipation grooves 124 are formed at predetermined intervals on the side to increase the surface area to improve heat dissipation characteristics. It is made of aluminum (Al) with excellent corrosion, heat dissipation and durability.

The front finishing member 130 is for closing the front part of the first lamp housing 110 that is open and includes a bezel 131 and a lamp cover 132, and the bezel 131 has an outer circumferential surface of the lamp housing. The front opening, specifically, is assembled to contact the inner circumferential surface of the first lamp housing 110 to close the front opening of the first lamp housing 110, the end of the lamp cover 132, the first lamp housing 110 It is fitted into the engaging groove 112 of the cover to cover the bezel 131.

The upper opening 131a is formed through the upper portion of the bezel 131 so that light emitted from the upper light source, which will be described later, passes through, and the lower opening 131b is formed through the lower portion of the bezel 131 so as to be described later. The light emitted from the lower light source to pass through, preferably the upper opening 131a is made of a circular shape, the lower opening 131b is made of a semi-circular shape.

The lamp cover 132 is made of a transparent material so that light is transmitted, it may be made of general tempered glass, synthetic plastic or acrylic resin, or may be composed of other special lenses.

The rear closing member 140 is for closing the rear part of the second lamp housing 120, a part of which is open, between the closing block 141 and the closing block 141 and the second lamp housing 120. It includes a gasket 142 (gasket) which is interposed to prevent the penetration of moisture, and a vent cap 143 fitted to one side of the rear portion of the second lamp housing 120.

The closing block 141 may close the rear part of the second lamp housing 120, but the controller 180 mounted on the printed circuit board (PCB) may be installed on the inner side of the second lamp housing 120. By protecting the control unit 180 to stably control the light source unit 150.

The vent cap 143 is opened if necessary to emit heat generated when the light source unit 150 installed in the second lamp housing 120 emits light to the outside, as well as various power cables or signal lines (not shown). To be led into the inside of the lamp housing 120.

The light source unit 150 provides functions of a fog light and a daytime running light, respectively, and includes a light source support 151, an upper light source 152 provided on an upper surface of the light source support 151, and a lower surface of the light source support 151. It includes a lower light source 153 is installed.

The light source support 151 is a block body made of metal such as aluminum having excellent thermal conductivity, and includes a vertical plate 151a extending in the vertical direction and a horizontal plate 151b extending forward from the center of the vertical plate 151a. It is composed of one piece and is generally composed of '??' shape. The vertical plate 151a is fixedly coupled to the inside of the lamp housing, more specifically, to the rear wall of the second lamp housing 120 by fasteners such as bolts, and the upper and lower surfaces of the horizontal plate 151b. The upper light source 152 and the lower light source 153 are mounted respectively. As such, the vertical plate 151a of the light source support 151 is coupled to the second lamp housing 120, and both the light source support 151 and the second lamp housing 120 are made of aluminum having excellent thermal conductivity. The heat generated from each light source may be smoothly discharged to the outside through the second lamp housing 120 through the light source support 151. In addition, the light source support 151 has a plurality of grooves 151c formed on the surface of the light source support 151 except for the portion where the upper light source 151 and the lower light source 153 are mounted, thereby increasing the surface area and improving heat dissipation characteristics.

The upper light source 152 is installed to emit light toward the upper side from the upper surface of the light source support 151, is used for fog lights, and the lower light source 153 is installed to emit light downward from the lower surface of the light source support 151, It is used for daytime driving. The upper light source 152 and the lower light source 153 are both composed of LED elements and the outside is surrounded by a lens or a protective cover, is installed on a printed circuit board, the printed circuit board is fastened to the light source support, such as bolts It is fixed by a sphere.

The radiator 160 transmits the upper radiating member 162 to guide the light emitted from the upper light source 152 to spread in the front, up, down, left, and right directions, and the light emitted from the lower light source 153 toward the front downward side. It includes a lower radiation member 164 to guide.

The upper radiation member 162 may include an upper reflection plate 162a for reflecting light emitted from the upper light source 152, a light source guide 162b for guiding the progress of light reflected from the upper reflection plate 162a, and And an inner lens 162c provided in front of the light source guide 162b.

The upper reflector plate 162a is formed in a spherical shape (ie, a quarter portion shape of the sphere) in which the front part and the lower part are open, and the reflecting surface is configured to cover the upper side of the upper light source 152, and the upper light source ( The light emitted from 152 is generally reflected either forward or downward downward.

The light source guide 162b supports the upper reflection plate 162a from below, and guides the progress of the light reflected from the upper reflection plate 162a. As shown in FIG. 3, the rear side is the upper reflection plate 162a. A through hole TH is formed to support a lower surface of the upper light source 152 through the center, and a guide groove for re-reflecting a part of the light reflected from the upper reflector 162a on the front side to guide the upper side upward. (G) is formed. The guide groove (G) is a concave groove having a generally semicircular cross section, and the rear side is rounded in a spherical shape so as to reflect light in all directions.

Through this configuration, a part of the light reflected from the upper reflector 162a does not rereflect in the light source guide 162b but proceeds forward or downward in a downward direction, and a part of the light is rereflected in the light source guide 162b so that the front upward side is moved. Towards the end, light is generally diffused in all directions.

On the other hand, the upper radiation member 162 is installed on the upper surface of the horizontal plate (151b) of the light source support 151. To this end, a groove GR is formed on the front surface of the horizontal plate 151b of the light source support 151 so that the guide groove G of the light source guide 162b is seated. In addition, the light source guide 162b is provided with a flange (F) on the front side, the back of the flange (F) is fixedly coupled by a fastener such as a bolt in a state in which the front of the light source support 151.

Inner lens 162c is coupled to the front portion of the light source guide 162, more specifically, to the front portion flange F of the light source guide 162 by a fastener such as a bolt. The inner lens 162c is configured as a convex lens and is provided to further diffuse the light reflected from the upper reflector 162a and the light source guide 162b to widen the irradiation range of the light.

The lower radiation member 164 has a lower reflection plate 164a reflecting the light emitted from the lower light source 153 and a horizontal reflection of the lower reflection plate 164a to reflect upwardly the light moving upward, and guide the light toward the front downward side. Reflector 164b is included. The lower reflecting plate 164a has a spherical shape (more specifically, a quarter part shape of the sphere) formed to be recessed downwards in the front side and the upper side, and the horizontal reflecting plate 164b is the lower reflecting plate 164a. It consists of a horizontal plate member covering the upper opening of the), the through hole TH is formed so that the lower light source 153 is inserted through the central portion on the rear side.

On the other hand, the lower radiation member 164 is preferably rotated up and down is configured to be steerable. To this end, protrusions 165 protrude from the front upper left and right sides of the lower radiating member 164, and a rotation shaft 166, such as a bolt or a pin, is inserted through the protrusion 165. The rotation shaft 166 is inserted into and coupled to the rotation shaft groove 151d formed outside the front end of the horizontal plate 151b of the light source support 151 so as to pivot the lower radiation member 164 to the light source support 151. To combine. In addition, a steering ring 167 having a coupling hole 167a formed at the center thereof is fixedly coupled to the rear side of the lower reflecting plate 164a of the lower radiation member 164 by a bolt or the like, and corresponds to a position where the steering ring 167 is installed. A steering control shaft 170 is installed at the lower side of the second lamp housing 120.

The steering control shaft 170 is provided with a hook hook 171 at one end thereof, so that the hook hook 171 can be coupled to the steering ring 167 by the hook hook 167, and the other end is connected to a wire (not shown). This is connected, so that the user can pull the steering control shaft 170 using a wire. Pulling the steering control shaft 170 through the wire is possible with a small force using the principle of the lever. That is, when the user pulls the wire, since the steering control shaft 170 is pulled backward, the steering ring 167 is also pulled backward, so that the lower radiation member 164 is steered downward about the pivot shaft 166. On the contrary, when the steering control shaft 170 is moved forward, the lower radiation member 164 is steered upward with respect to the rotation shaft 166. Through this configuration, it is possible to steer so that daytime running lights do not interfere with the vision of the oncoming vehicle driver.

However, in the above, the user directly pulls the wire to adjust the steering control shaft 170, for example, but the configuration to be automatically adjusted by connecting the steering control shaft 170, such as a hydraulic cylinder.

The controller 180 controls the blinking and luminance of the upper light source 152 and the lower light source 153 LED (hereinafter, referred to as a “light source LED”) of the light source unit 150, and a chip-set. The controller 180 is formed on the printed circuit board in a fixed state on the inner side of the finishing block 141 of the rear closing member 140, and the power supply side of the light source unit 150 for the transmission of the control command Electrically connected. Preferably, the controller 180 drives the light source LED by the constant current control method. In the case of the upper light source 152 for the fog light, the controller 180 controls the vehicle driver to blink according to the on / off of the fog light switch, and the lower light source 153 for the daytime running light. In the case of), it is preferable to control the vehicle to turn on when the vehicle is started and to turn off when the vehicle is turned off.

On the other hand, the controller 180 preferably has a function of preventing overheating of the light source LED. 5 shows a configuration of the controller 180 for performing such an overheat prevention function. As shown, the controller 180 includes a microcomputer 182, a PWM module 184, an LED driver 186, and a temperature sensor 188.

The microcomputer 182 receives a control signal for turning on the light source LED, and a duty ratio of a pulse width modulation (PWM) signal based on the input control signal and the temperature detected by the temperature sensor 188 described later. To control the ratio.

The PWM module 184 generates a pulse width modulation signal for driving control of the light source LED according to the control command of the microcomputer 182, and the LED driver 186 generates the pulse width modulation generated by the PWM module 184. Based on the signal, the light source LED is driven in a constant current method. In addition, the temperature sensor 188 detects the temperature of the light source LED in real time, and senses the temperature by the resistance change according to the temperature change, and is preferably installed in the LED driving unit 186. The signal value sensed by the temperature sensor 188 is converted into a digital value by an A / D converter (not shown) and transmitted to the microcomputer 182.

The microcomputer 182 compares the signal value detected and transmitted from the temperature sensor 188 with a pre-stored reference value, and determines that the light source LED is overheated when the detected signal value is greater than or equal to the reference value, thereby controlling the PWM module 184. By adjusting the duty ratio of the pulse width modulation signal. In addition, the LED driver 186 reduces the current applied to the light source LED based on the pulse width modulated signal whose duty ratio is adjusted to lower the luminance of the light source LED, thereby reducing the amount of heat generated and preventing damage to the device due to overheating. do.

So far, the present invention has been described in detail with reference to the embodiments of the present invention, but the scope of the present invention is not limited thereto, and will include the embodiments and the substantial equivalent range of the present invention.

110: first lamp housing 120: second lamp housing
130: front finishing member 131: finishing plate
132: lamp cover 140: rear closing member
141: finishing block 142: gasket
143: vent cap 150: light source unit
151: light source support 152: upper light source
153: lower light source 160: radiating part
162: upper radiation member 164: lower radiation member
170: steering control shaft 180: control unit

Claims (8)

A lamp housing constituting a body of a fog lamp and having an open front portion; An upper light source for a fog lamp installed to emit light upward in the lamp housing; A lower light source for a daytime running light that is installed to emit light downward in the lamp housing; A vertical plate extending in the vertical direction, and a horizontal plate extending toward the front from the center portion of the vertical plate is integrally formed, the upper light source is mounted and supported on the upper surface of the horizontal plate, the lower portion on the lower surface of the horizontal plate A light source is mounted and supported, and the vertical plate is fixedly coupled to the inner rear wall of the lamp housing, wherein the horizontal plate and the vertical plate each have a heat dissipation recess; An upper radiating member for guiding the light emitted from the upper light source to spread in the front, up, down, left, and right directions; A lower radiation member for guiding the light emitted from the lower light source toward the front downward side; A lamp cover installed to cover the open front part of the lamp housing and made of a material through which light is transmitted; And a control unit for controlling the blinking of the up and down light source;
The upper radiation member is formed of a spherical shape with an open front and lower surface, the reflecting surface is configured to cover the upper side of the upper light source, the upper reflector for reflecting light emitted from the upper light source; The upper reflector is supported from below, guides the progress of light reflected from the upper reflector, and the rear side supports the lower surface of the upper reflector, but a through-hole is formed so that the upper light source is inserted through the center, and the upper reflector is at the front side. A light source guide, in which a guide groove is formed to re-reflect a portion of the light reflected from the front to guide upwardly; It is coupled to the front portion of the light source guide includes an upper lens and an inner lens for diffusing the light proceeds reflected from the light source guide,
The guide groove is a concave groove having a semi-circular cross section, and the rear side is rounded in a spherical shape so as to reflect light upwards and forwards.
A groove is formed on the front surface of the horizontal plate of the light source support so that the upper radiation member is installed on the upper surface of the horizontal plate of the light source support, and the groove is formed so that the guide groove of the light source guide is seated. And, the rear of the flange is fixedly coupled by a fastener in a state in which the front of the light source support,
The lower radiation member may include a lower reflection plate configured to have a spherical shape formed by concave downwards by opening the front side and the upper side thereof and reflecting light emitted from the lower light source; Consists of a horizontal plate member covering the upper opening of the lower reflecting plate, the through-hole is formed so that the lower light source is penetrated through the central portion of the rear reflector, the light reflecting upward from the lower reflecting plate to reflect the upward movement to guide the front downward side It includes a horizontal reflector,
The control unit drives the upper light source and the lower light source in a constant current control method, the upper light source for the fog light is controlled to blink in accordance with the on and off of the fog light switch, the lower light source for daytime running lights are turned on when the vehicle is started and the start is turned off Fog light module for a vehicle, characterized in that the control to turn off. delete delete delete delete The method of claim 1,
Projections are formed on both sides of the front upper left and right sides of the lower radiation member, and a rotation shaft is inserted through the projection, and the rotation shaft is inserted into and coupled to a rotation shaft groove formed outside the horizontal plate front side end of the light source support. The member is rotatably coupled to the light source support, and a steering control shaft is installed at the rear side of the lower reflection plate of the lower radiation member, so that the lower radiation member can be rotated up and down about the rotation shaft according to the forward and backward movement of the steering control shaft. Vehicle fog light module. delete The method of claim 1,
The control unit is to prevent overheating of the upper light source and the lower light source,
A temperature sensor detecting the temperature of the upper light source and the lower light source in real time;
A microcomputer inputting a control signal for turning on the upper light source and the lower light source, and controlling a duty ratio of a pulse width modulation signal based on the input control signal and the signal sensed by the temperature sensor;
A PWM module for generating a pulse width modulation signal for driving control of an upper light source and a lower light source according to the control command of the microcomputer;
An LED driver for driving the upper light source and the lower light source in a constant current manner based on the pulse width modulation signal generated by the PWM module;
The microcomputer compares the signal value sensed and transmitted from the temperature sensor with a pre-stored reference value, and when the detected signal value is greater than or equal to the reference value, by controlling the PWM module to adjust the duty ratio of the pulse width modulated signal, the LED driver is a duty ratio The fog lamp module for a vehicle, characterized in that to reduce the amount of heat generated by reducing the current applied to the upper light source and the lower light source based on the adjusted pulse width modulation signal to reduce the luminance of the upper light source and the lower light source.

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