TWM498688U - Illumination device for vehicle - Google Patents

Description

Vehicle lighting device

The invention discloses a lighting device for a vehicle, in particular to a lighting device for a vehicle comprising a cooling fan and a guiding fan.

In order to facilitate the identification of the route of travel and the distance to other vehicles while traveling, the vehicle lights are installed at the front and rear of the vehicle. The light source of the lamp has one of the main considerations when designing the lamp from the conventional light bulb used in the early days to the light-emitting diode (LED) developed today.

In recent years, LED lamps have been used as light sources for lamps because of their high brightness, low power consumption, and stable light-emitting state. However, the heat dissipation effect of the LED lamp itself is not good. If the number of LED lights is large or the use time is long, the heat generated by the light will accumulate inside the lights, in addition to easily destroying the lights due to excessive temperature, and even causing danger when people use the lights. Sexually improved.

In view of the above problems, the present invention discloses a lighting device for a vehicle for improving the problem of poor heat dissipation when a vehicle lighting device is equipped with a high-power light source.

The invention discloses a lighting device for a vehicle, which comprises a carrier, a lighting module, a cooling fan and a guiding fan. The carrier has an opposite first end and a second end. The light emitting module is disposed on the carrier and between the first end and the second end. The heat dissipation fan is disposed at the first end of the carrier. The flow guiding fan is disposed at the second end of the carrier.

The illuminating device for a vehicle disclosed in the present invention comprises a cooling fan and a flow guiding fan. The diversion fan can actively transfer thermal energy in the vehicular lighting device through the graphite heat conducting plate from the second end toward the first end to the cooling fan, and the cooling fan guides the thermal energy to the outside of the vehicular lighting device. Thereby, the flow guiding fan and the cooling fan can effectively dissipate heat from the light emitting module to avoid excessive temperature of the lighting device for the vehicle.

The above description of the present invention and the following description of the embodiments are intended to illustrate and explain the principles of the present invention and to provide a further explanation of the scope of the invention.

1‧‧‧Vehicle lighting device

2‧‧‧Reflection lampshade

2a‧‧‧Second junction

2b‧‧‧Mirror

3‧‧‧ Ground

10‧‧‧Lighting module

100‧‧‧Substrate

110‧‧‧First light-emitting parts

120‧‧‧second illuminating parts

20‧‧‧ graphite heat conductive parts

200‧‧‧First thermal contact surface

210‧‧‧Second thermal contact surface

30‧‧‧Hosting

30a‧‧‧ surface

300‧‧‧First end

310‧‧‧ second end

320‧‧‧First subject

321‧‧‧connection slot

322‧‧‧ first opening

323‧‧‧Lighting Department

330‧‧‧Second subject

331‧‧‧ second opening

332‧‧‧Lighting Department

340‧‧‧Place space

350‧‧‧diver fan slot

360‧‧‧ trench

40‧‧‧Finishing fin assembly

400‧‧‧Solid fan slot

50‧‧‧ cooling fan

60‧‧‧drain fan

70‧‧‧ ring seals

80‧‧‧Assembly

800‧‧‧ first joint

90‧‧‧First protective cover

91‧‧‧Second protective cover

Fig. 1 is a perspective view showing a lighting device for a vehicle according to a first embodiment of the present invention.

Fig. 2 is another perspective view of the lighting device for a vehicle according to the first embodiment of the present invention.

Fig. 3 is an exploded perspective view of a lighting device for a vehicle according to a first embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view showing a lighting device for a vehicle according to a first embodiment of the present invention.

Fig. 5 is a perspective view showing a lighting device for a vehicle according to a first embodiment of the present invention, which is disposed on a reflector lamp cover.

Figure 6 is a side view of Figure 5.

Fig. 7 is a partially enlarged perspective view showing a lighting device for a vehicle according to a second embodiment of the present invention.

The detailed features and advantages of the present invention are described in detail in the following detailed description of the embodiments of the present invention. Any related art and related art can easily understand the related purposes and advantages of the present invention. The following examples further illustrate the aspects of the present invention in detail, but do not limit the scope of the present invention in any way.

Please refer to Figure 1, Figure 2, Figure 3 and Figure 4 at the same time. Fig. 1 is a perspective view showing a lighting device for a vehicle according to a first embodiment of the present invention. Fig. 2 is another perspective view of the lighting device for a vehicle according to the first embodiment of the present invention. Fig. 3 is an exploded perspective view of a lighting device for a vehicle according to a first embodiment of the present invention. Fig. 4 is a schematic cross-sectional view showing a lighting device for a vehicle according to a first embodiment of the present invention. In the embodiment, the vehicular illumination device 1 includes two illumination modules 10, a graphite heat conduction member 20, a carrier 30, a heat dissipation fin assembly 40, a heat dissipation fan 50, and a flow guiding fan 60.

Each of the light-emitting modules 10 includes a substrate 100, a plurality of first light-emitting members 110, and a plurality of second light-emitting members 120. The substrate 100 is, for example, a circuit board. The first illuminating member 110 and the second illuminating member 120 are disposed on and electrically connected to the substrate 100. In the embodiment, the number of the first illuminating member 110 and the second illuminating member 120 are plural, but not limited thereto. In other embodiments, the number of the first illuminating member 110 and the second illuminating member 120 may be one.

The graphite heat conducting member 20 is a graphite plate or a graphite composite plate having a first first thermal contact surface 200 and a second thermal contact surface 210. The substrate 100 of the two light-emitting modules 10 is in thermal contact with the first thermal contact surface 200 and the second thermal contact surface 210 of the graphite heat-conducting member 20, respectively, so that the two light-emitting modules 10 are respectively disposed on the first thermal contact of the graphite heat-conducting member 20. Face 200 and second thermal contact surface 210.

The carrier 30 has an opposite first end 300 and a second end 310. In detail, the carrier 30 includes a first body 320 and a second body 330. The first end portion 300 is located at one end of the first body 320. The second body 330 is assembled to the first body 320 such that the first body 320 is away from one end of the first end portion 300 and the second body 330 is away from one end of the first end portion 300 to form the second end portion 310. The first body 320 has a connecting groove 321 at the first end portion 300 inside. The second body 330 is assembled to the first body 320 to form an accommodation space 340 and a flow guiding fan slot 350. The accommodating space 340 communicates with the connecting groove 321 . The flow guiding fan groove 350 is located at the second end portion 310 and is recessed from a surface 30a of the carrier 30 to communicate with the placement space 340. Two light emitting module 10 and graphite heat conductive member 20 are all located in the placement space 340. In other words, the second body 330 is assembled to the first body 320 to sandwich the two light-emitting modules 10 and the graphite heat-conducting member 20, and the two light-emitting modules 10 and the graphite heat-conducting member 20 are interposed between the first end portion 300 and the first portion Between the two ends 310.

In this embodiment, the first body 320 and the second body 330 of the carrier 30 are assembled with each other to sandwich the two light emitting modules 10 and the graphite heat conducting member 20, but the light emitting module 10 and the graphite heat conducting member 20 and the carrier 30 are Connection relationships are not limited to this. In other embodiments, the carrier 30 may not include the first body 320 and the second body 330 and is integrally formed with a base. The light module 10 and the red heat conductor 20 are disposed on the carrier 30.

The first body 320 further has a first opening 322 and a light blocking portion 323. The second body 330 has a second opening 331 and a light blocking portion 332. The light shielding portions 323, 332 are adjacent to the first opening 322 and the second opening 331, respectively. The first illuminating member 110 and the second illuminating member 120 disposed on the first thermal contact surface 200 are exposed from the first opening 322, and the opaque portion 323 is located directly below the second illuminating member 120. The first illuminating member 110 and the second illuminating member 120 disposed on the second thermal contact surface 210 are exposed from the second opening 331 , and the opaque portion 332 is located directly below the second illuminating member 120 .

The heat sink fin assembly 40 is disposed at the first end portion 300 and has a heat dissipation fan slot 400.

The heat dissipation fan 50 is disposed at the first end portion 300 and located within the heat dissipation fan slot 400 of the heat dissipation fin assembly 40. The flow guiding fan 60 is disposed on the bearing The second end 310 of the seat 30 is located within the flow guiding fan slot 350. In the present embodiment, the size of the heat dissipation fan 50 is larger than the size of the flow guiding fan 60. Thereby, the large-sized cooling fan 50 contributes to the improvement of the heat dissipation efficiency, and the small-sized guide fan 60 can have both the flow guiding effect and the advantage of reducing the volume of the vehicle lighting device 1.

In addition, the vehicular lighting device 1 further includes a ring seal 70. The carrier 30 can have a groove 360. The ring seal 70 is, for example, an O-ring that is sleeved with the carrier 30 and fitted to the groove 360.

Furthermore, the vehicular lighting device 1 further includes an assembly frame 80 having a first joint portion 800. The assembly frame 80 is sleeved with the carrier 30 such that the ring seal 70 is interposed between the assembly frame 80 and the carrier 30. Thereby, the ring seal 70 allows a better degree of tightness between the assembly frame 80 and the carrier 30. The first joint portion 800 can be engaged with a second joint portion 2a of the reflector cover 2 (please refer to FIG. 5 first).

Furthermore, the vehicular lighting device 1 can include a first protective cover 90 and a second protective cover 91. The first protective cover 90 and the second protective cover 91 each have a plurality of vent holes. The first protective cover 90 is disposed at the first end portion 300 and covers the heat dissipation fan 50. The second protective cover 91 is disposed at the second end portion 310 and covers the flow guiding fan 60. Thereby, the first protective cover 90 and the second protective cover 91 help prevent the cooling fan 50 and the flow guiding fan 60 from being struck and from accumulating dust.

When the light-emitting module 10 of the vehicular illumination device 1 is driven, the first illuminating member 110 and the second illuminating member 120 generate heat energy due to being illuminated. The heat generated by the first illuminating member 110 and the second illuminating member 120 is transmitted through the substrate 100 To the graphite heat conducting member 20. The graphite heat conducting member 20 conducts thermal energy of the first illuminating member 110 and the second illuminating member 120 from the second end portion 310 toward the first end portion 300 to the heat dissipating fin assembly 40, and the heat dissipating fan 50 is disposed on the heat dissipating fin assembly. 40 for heat dissipation. On the other hand, the flow guiding fan 60 causes the outside air to flow through the flow guiding fan slot 350 to the placement space 340, so that the heat energy in the placement space 340 and the connection groove 321 is actively from the second end portion 310 toward the first end portion. The direction of 300 is conducted to the cooling fan 50, and the cooling fan 50 can further discharge thermal energy to the outside of the vehicular lighting device 1. Therefore, the flow guiding fan 60 helps to further improve the efficiency of the heat dissipation fan 50 for dissipating heat from the light emitting module 10 and the graphite heat conducting member 20, so as to effectively prevent the temperature of the lighting device 1 for the vehicle from being excessively high.

The vehicular illumination device can be used as a low beam or a high beam through the first opaque portion and the second opaque portion. Please refer to Fig. 1, Fig. 2, Fig. 5, and Fig. 6 at the same time. Fig. 5 is a perspective view showing a lighting device for a vehicle according to a first embodiment of the present invention, which is disposed on a reflector lamp cover. Figure 6 is a side view of Figure 5. In this embodiment, the first illuminating member 110 and the second illuminating member 120 can be respectively switched through a switching unit (not shown).

The reflector cover 2 is disposed on a scooter (not shown) and has a mirror surface 2b. The first joint portion 800 of the assembly frame 80 is engaged with the second joint portion 2a of the reflector cover 2 to fix the vehicle lighting device 1 to the reflector cover 2. When the vehicular illumination device 1 is to be used as a high beam, the drive switching unit causes the first illuminating member 110 to illuminate, and at this time, the light of the first illuminating member 110 is incident on the mirror surface 2b along the optical path H1. The mirror 2b reflects the light of the first illuminating member 110 to make the light along the optical path H2 is directed to the outside of the reflector 2 . At this time, the light traveling along the optical path H2 can be irradiated to a distant object, and the vehicular illumination device 1 can be used as a high beam.

When the vehicular lighting device 1 is to be used as a low beam, the first illuminating member 110 is turned off by the switching unit and the second illuminating member 120 is illuminated. The light of the second illuminating member 120 is incident on the mirror surface 2b along the optical path L1, and the light blocking portions 323 and 332 block the light that is irradiated toward the direct side of the second illuminating member 120. The mirror 2b reflects the light of the first illuminating member 110 so that the light is directed toward the outside of the reflecting cover 2 along the optical path L2. At this time, the light traveling along the optical path H2 is irradiated only to the ground 3 located under the reflector 2, and the vehicular illumination device 1 is used as a low beam.

The illuminating member of the above embodiment is an LED lamp, but the present invention is not limited thereto. Please refer to FIG. 7, which is a partially enlarged perspective view of a lighting device for a vehicle according to a second embodiment of the present invention. In this embodiment, the first illuminating member 110 and the second illuminating member 120 of the light emitting module 10 are respectively halogen bulbs. In other words, the vehicular lighting device 1 can employ different types of light sources depending on the product design.

In summary, the illuminating device for a vehicle disclosed in the present invention comprises a cooling fan and a guiding fan. The flow guiding fan through the graphite heat conducting plate can actively transfer the thermal energy in the vehicular lighting device from the second end toward the first end to the cooling fan, and the cooling fan guides the thermal energy to the outside of the vehicular lighting device. Thereby, the flow guiding fan and the cooling fan can effectively dissipate heat from the light emitting module to avoid excessive temperature of the lighting device for the vehicle.

In addition, the size of the cooling fan is larger than the size of the flow guiding fan. borrow Therefore, the large-sized cooling fan helps to further improve the heat dissipation efficiency, and the small-sized diversion fan can combine the advantages of the flow guiding function and the volume of the vehicle lighting device.

Furthermore, the first illuminating member and the second illuminating member of the illuminating module are matched with the light shielding portion of the carrier, so that the vehicular illuminating device can be used as a low beam or as a high beam lamp according to requirements.

Although the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the present invention, and it is intended that those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of the new patent protection shall be subject to the definition of the scope of the patent application attached to this specification.

1‧‧‧Vehicle lighting device

10‧‧‧Lighting module

100‧‧‧Substrate

110‧‧‧First light-emitting parts

120‧‧‧second illuminating parts

30‧‧‧Hosting

330‧‧‧Second subject

331‧‧‧ second opening

332‧‧‧Lighting Department

310‧‧‧ second end

40‧‧‧Finishing fin assembly

90‧‧‧First protective cover

91‧‧‧Second protective cover

Claims (10)

A lighting device for a vehicle, comprising: a carrier having an opposite first end and a second end; a lighting module disposed on the carrier and interposed between the first end and the first Between the two ends; a heat dissipation fan disposed at the first end of the carrier; and a flow guiding fan disposed at the second end of the carrier. The vehicular lighting device of claim 1, further comprising a first protective cover and a second protective cover, wherein the first protective cover is disposed at the first end of the carrier and covers the cooling fan, and The second protective cover is disposed at the second end of the carrier and covers the flow guiding fan. The illuminating device of the vehicle of claim 1 , wherein the illuminating module comprises at least one first illuminating member and at least one second illuminating member, the cradle further has a light shielding portion, wherein the opaque portion is located at the at least one second Directly below the illuminating member. The vehicular lighting device of claim 1, further comprising a heat dissipating fin assembly, wherein the heat dissipating fin assembly is disposed at the first end, and the heat dissipating fan is located in the heat dissipating fin assembly. The vehicle lighting device of claim 1, wherein the carrier comprises a first body and a second body, and the second body is assembled to the first body to sandwich the light emitting module. The vehicular lighting device of claim 5, wherein the first body has a first opening, the second body has a second opening, and the lighting module comprises a substrate and a plurality of first illuminating members and a plurality of second illuminating members disposed on the substrate, wherein the plurality of first illuminating members and the plurality of second illuminating members are respectively exposed from the first opening and the second opening outer. The illuminating device for a vehicle of claim 1, further comprising a graphite heat conducting member disposed on the carrier, wherein the lighting module comprises a substrate and at least one illuminating member, the at least one illuminating member being disposed and electrically connected And the substrate is in thermal contact with the graphite heat conducting member. The illuminating device for a vehicle of claim 1, further comprising an assembly frame, wherein the assembly frame is sleeved with the carrier, and the assembly frame is configured to be engaged with a reflector. The vehicular lighting device of claim 8, further comprising a ring-shaped seal, wherein the ring-shaped seal sleeves the carrier and is interposed between the assembly frame and the carrier. The vehicular lighting device of claim 1, wherein the size of the cooling fan is larger than the size of the flow guiding fan.