JP2005271839A - Daytime running light for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To irradiate a light effectively, reduce costs for installing/replacing lamps and save a fitting space. <P>SOLUTION: The daytime running light for an automobile to be lit in the daytime to make a third party recognize the presence of the autobile is provided with a light source 2 and light distribution controlling devices 4, 5 to control the light distribution of the light source 2, and the devices 4, 5 can set the irradiation area of the light source 2 more narrowly than that of the existing lights installed at the front part of the above automobile. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a daytime lighting device for a vehicle that lights up in the daytime to make a third party such as a driver or pedestrian of another vehicle recognize the presence of a vehicle such as a two-wheeled vehicle or a four-wheeled vehicle.

  In order to prevent the occurrence of traffic accidents, it is important for third parties such as other automobile drivers and pedestrians to recognize the existence of automobiles that they drive. When driving a car such as a car in the daytime, it is encouraged to turn on the lamp of the daytime lighting device installed at the front of the car.

  In addition, as a lamp in the conventional daytime lighting device of this type, an existing automobile headlamp, fog lamp, or vehicle width lamp (small lamp) can also be used, or separately installed near the lower side of the headlamp. For example, a lamp dedicated to daytime running is used (for example, see Patent Document 1).

Japanese Patent Application Laid-Open No. 2004-51080

  However, as described above, when an existing automobile headlamp or fog lamp is used as a lamp for a daytime lighting device, the lamp life of an incandescent lamp such as a halogen lamp normally used as a light source for the headlamp or fog lamp is 1000 hours. Since it is short before and after, there is a need for complicated lamp replacement, and there is a problem that the cost and labor of lamp replacement are increased. Further, since the incandescent lamp has a low luminous efficiency and the headlamp consumes about 55 W of electric power, there is a problem that if the headlamp is turned on during the day, the fuel consumption rate of the automobile is adversely affected.

  Furthermore, the lighting in the upward (running beam) state of the headlamps and fog lamps is designed on the assumption that no other vehicle exists ahead, so the lighting in the upward state is too bright even during daytime lighting. It was dangerous because it interfered with the driving of other car drivers ahead. On the other hand, the lighting of the headlamp or fog lamp in the downward direction (passing beam) is designed to illuminate the road surface in front, so most of the light emitted from the lamp is present in the front as road surface reflected light Even if it is effective in the morning, evening, or in cloudy weather, the third party is in the daytime in fine weather or during a period when the third party receives direct sunlight from the front. There was a problem that it was difficult to recognize existence.

  In addition, when a car width lamp is used as a lamp for a daytime lighting device, the illuminance of the light source of the width lamp is very low, and furthermore, the illumination light is diffused over a wide range by the reflector. Because it is set, it is not possible to expect the effect of causing the third party ahead to recognize the presence of the car in addition to the lighting in the downward (passing beam) state of the headlamp and fog lamp described above. was there.

  On the other hand, as described above, when installing a lamp dedicated to daytime running, recently developed cars often have no space for storing a new lamp at the front, so if you try to install it forcibly, Projecting forward, increasing damage in the event of a traffic accident, or obstructing the air flow at the air intake opening at the front, resulting in insufficient cooling air to the radiator, overheating, etc. There was a risk of causing problems.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and is an automotive daytime that can efficiently irradiate light, reduce the cost required for mounting and replacing the lamp, and save installation space. A lighting device is to be provided.

  The present invention is an automotive daytime lighting device 1 that lights in the daytime to make a third party recognize the presence of an automobile, and includes a light source 2 and a light distribution control means 4 for controlling the light distribution of the light source 2. , 5 and the light distribution control means 4 and 5 are configured such that the irradiation range of the light source 2 can be set narrower than the irradiation range of the existing lamps provided in the front part of the automobile. It is characterized by.

  Preferably, the light source 2 is configured so as to be mountable on a socket 7 of an existing lamp.

  Further, a light emitting diode may be used as the light source 2, and the light distribution control means 4 and 5 may be integrally formed with the light emitting diode.

  Furthermore, the light distribution control means 4 and 5 may be configured so that light having an illuminance of 10% or more of the maximum illuminance of the light source 2 can be set in an irradiation range of 2 to 60 °.

  According to the present invention, since the illumination range of the light source is set to be narrower than the illumination range of the existing lamp by the light distribution control means, the light from the light source is efficiently emitted toward the third party ahead. The third party can reliably recognize the existence of the automobile. Moreover, since it is not influenced by the light distribution characteristic of the reflector of the existing lamp, versatility can be improved greatly.

  In addition, when the light source is configured so that it can be attached to the socket of an existing lamp, it is not necessary to secure a new space for the day lighting device in the front part of the automobile. It can be prevented that it becomes a protrusion and expands the damage caused by a traffic accident, or obstructs the air flow to the air intake port to the radiator and causes problems such as overheating.

  Furthermore, by simply replacing the existing lamp, the control circuit and switch of the existing lamp can be used as they are, and there is no need to newly wire the control circuit and switch circuit of the daytime lighting device. Various excellent effects can be obtained, such as a significant reduction in cost and installation cost.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. In the following description, a case where the daytime lighting device for an automobile according to the present embodiment is attached to an existing fog lamp will be described as an example. Here, FIG. 1 is an exploded perspective view showing the daytime lighting device for automobiles according to the present embodiment, and FIG. 2 shows the irradiation state of the light source when the irradiation range is set to the same irradiation range as that of an existing lamp. FIG. 3 is a cross-sectional view showing the irradiation state of the light source in the present embodiment, FIG. 4 is a cross-sectional view showing the phosphorescent portion in the daytime lighting device for automobiles according to the present embodiment, and FIG. The figure which shows the irradiation pattern of the light source in the daytime lighting device for motor vehicles based on this form, FIG. 6 is a figure which shows the irradiation range of the light source.

  The daytime lighting device 1 for an automobile includes a light source 2, a base body 3 for supporting the light source 2, a reflector 4 as light distribution control means for controlling light distribution of the light source 2, and a lens 5 made of acrylic resin. And a support member 6 for holding the reflector 4 and the lens 5, and the light source 2 can be mounted on the socket 7 of an existing fog lamp via the base body 3.

The light source 2 is a light-emitting diode (LED).
The light emitting diode is electrically connected to the disk-shaped wiring board 8, and the first cable 9 is connected to the wiring board 8. In the case of a light-emitting diode, since the lamp life is as long as about 50,000 hours, the replacement frequency of the lamp is low as it continues to be lit in the daytime, and it is possible to reduce the replacement cost of the lamp and save labor in the replacement work. Further, when the light emitting diode is used, the reflector 4 is not necessary, and an acrylic resin lens can be integrally formed on the front end side of the light emitting diode instead of providing the lens 5 separately. Therefore, the number of parts and the number of assembly steps can be reduced.

  The base body 3 includes a main body portion 10 having a substantially cylindrical shape and a flange portion 11 formed on the base end side of the main body portion 10, and the outer shape of the main body portion 10 is a lamp of a housing 12 of an existing fog lamp. The flange 11 is smaller than the insertion hole 13 and larger than the lamp insertion hole 13. And the groove part 14 is formed in the axial direction in the position which the outer peripheral part of the base body 3 opposes, respectively, The 1st cable 9 is wired through this groove part 14. As shown in FIG.

  The first cable 9 is electrically connected to the relay board 15 on the base end side of the base body 3, and an LED driving (step-down) circuit 16 is formed on the relay board 15. The second cable 17 is electrically connected to the relay base 15, and the second cable 17 is connected to the socket 7. In addition, instead of the LED driving (step-down) circuit 16, a 22Ω (5 W) cement resistor can be used, and in that case, wiring can be performed more easily.

  The reflector 4 and the lens 5 (light distribution control means) are configured such that the irradiation range of the light source 2 can be set narrower than the irradiation range of existing lamps provided in the front part of the automobile, such as fog lamps and headlamps. . As a result, the light emitted from the light source is not reflected by the existing reflector 19 (see FIG. 2), but the light from the light source 2 passes through the light distribution control means as shown in FIG. Irradiation directly to the outside in the irradiation range. Therefore, according to the daytime lighting device 1 for automobiles, since it is not affected by the light distribution characteristic of the reflector of the existing lamp, versatility can be greatly enhanced.

  In FIG. 1, the reflector 4 and the lens 5 are shown as the light distribution control means. However, as described above, when a light emitting diode is used for the light source 2 and the lens is integrally formed with the light emitting diode. Can omit the reflector 4 and the lens 5. When a light emitting diode is used as the light source 2, the lens serving as the light distribution control means emits light having an illuminance of 10% or more of the maximum illuminance of the light emitting diode, as shown in FIGS. It is desirable that the irradiation range is set to ˜60 °. This is because an irradiation range of at least 2 ° or more is necessary to make a third party such as a driver or pedestrian of another vehicle recognize the presence of the vehicle that the driver drives. The wider the light source, the brighter the light source must be. Use a light-emitting diode with a power consumption of about 3 W to irradiate with enough light to make a third party aware of the presence of an automobile. This is because it is necessary to set the range. As a result, even if the luminance of the light source 2 itself is low, the light from the light source 2 can be efficiently emitted toward the third party ahead, so that the third party can reliably recognize the presence of the automobile. And can take action corresponding to the presence of the car.

  More preferably, the light distribution control means may be configured so that the irradiation range of the light emitting diodes can be set within a range of 5 to 30 °. It is possible to make a third party recognize the existence more reliably.

  Even when a light-emitting diode is not used as the light source 2, if a collimator lens is used, the light emitted from the light source 2 can be converted into parallel rays, and thus the reflector 4 can be omitted.

  The support member 6 has a cylindrical shape that can be fitted to the main body 10 of the base body 3, and is formed so as to receive and hold the reflector 4 and the lens 5.

  In addition, as shown in FIG. 4, you may form the phosphorescence part 20 in the front-end | tip inner periphery part of the reflector 4, and the outer peripheral part of the base body 3. As shown in FIG. The phosphorescent part 20 is formed by applying a phosphorescent paint, affixing a phosphorescent seal, or affixing a phosphorescent foil, and absorbs energy by stimulation of light emitted from the light source 2, Even after the absorbed energy is converted into visible light and the stimulation by light is stopped, light can be gradually emitted and can continue to emit light for a predetermined time.

  Thus, according to the daytime lighting device 1 for automobiles according to the above-described embodiment, the irradiation range of the light source 2 is set to be narrower than the irradiation range of the existing lamp. Can be efficiently directed toward a third party ahead, and the third party can reliably recognize the presence of the automobile.

  Further, since the light source 2 can be attached to the socket 7 of the existing lamp and it is not necessary to secure a new space for the daytime lighting device in the front part of the automobile, the daytime lighting device is a front projection. Thus, it is possible to prevent damage caused by a traffic accident or to prevent troubles such as overheating by inhibiting the air flow to the air intake port to the radiator.

  Furthermore, by simply replacing the existing lamp, the control circuit and switch of the existing lamp can be used as they are, and there is no need to newly wire the control circuit and switch circuit of the daytime lighting device. Costs and installation costs can be greatly reduced. Furthermore, since the above-described automobile daytime lighting device 1 is not affected by the light distribution characteristics of the reflector of the existing lamp, the versatility can be greatly enhanced.

  In the above embodiment, the daytime lighting device 1 for an automobile is illustrated as an example in which the lamp of an existing fog lamp is replaced and attached. However, the present invention is provided at the front part of an automobile such as a headlamp or a width lamp. The lamps of the other existing lamps may be replaced and attached, or the headlamp housing 12 may be provided with a dedicated attachment for the daytime lighting device for automobiles.

  Moreover, you may newly install the above-mentioned daytime lighting device 1 for motor vehicles in the front part of a motor vehicle, not using the existing lamp.

It is a disassembled perspective view which shows the daytime lighting device for motor vehicles based on embodiment of this invention. It is sectional drawing which shows the irradiation state of the light source at the time of setting an irradiation range to the same irradiation range as the irradiation range of the existing lamp. It is sectional drawing which shows the irradiation state of the light source in the daytime lighting device for motor vehicles which concerns on embodiment of this invention. It is sectional drawing which shows the phosphorescence part in the daytime lighting device for motor vehicles based on embodiment of this invention. It is a figure which shows the irradiation pattern of the light source in the daytime lighting device for motor vehicles which concerns on embodiment of this invention. It is a figure which shows the irradiation range of the light source in the daytime lighting device for motor vehicles based on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Daytime lighting device for cars 2 Light source 4 Reflector 5 Lens 7 Socket

Claims (4)

A vehicle daytime lighting device that lights up in the daytime to make a third party recognize the presence of the vehicle,
A light source;
A light distribution control means for controlling the light distribution of the light source;
With
The daylight lighting device for an automobile, wherein the light distribution control means is configured such that an irradiation range of the light source can be set narrower than an irradiation range of an existing lamp provided at a front portion of the automobile. The daytime lighting device for an automobile according to claim 1, wherein the light source is configured to be attachable to a socket of the existing lamp. The daytime lighting device for an automobile according to claim 1 or 2, wherein a light emitting diode is used as the light source, and the light distribution control means is integrally formed with the light emitting diode. The daytime lighting device for an automobile according to claim 3, wherein the light distribution control means is configured to be able to set light having an illuminance of 10% or more of the maximum illuminance of the light source to an irradiation range of 2 to 60 °. .

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