TW201546398A - Vehicular light system - Google Patents

Abstract

A car lamp includes a housing provided with an optical reflecting surface for reflecting light produced by LED lamps to have the light passing through an optical panel and projected outward. The car lamp has a heat-dissipating member fixed between the housing and the optical panel and installed thereon with LED lamps. The heat-dissipating member has its front end disposed with an auxiliary heat sink that extends in a reserved space of the optical panel and firmly combined with the optical panel. Thus, the auxiliary heat sink is able to directly contact with normal-temperature outside air for elevating heat dissipation effect and prolonging service life of the car lamp.

Description

Vehicle lighting system

The present invention relates to a vehicle illumination system, and more particularly to a housing having an optical reflecting surface for reflecting a light source generated by a light emitting diode (hereinafter referred to as an LED lamp) and projecting through the optical panel for illumination; The heat dissipating component is fixed between the housing and the optical panel, and the LED is disposed on the heat dissipating component, and the auxiliary heat sink is disposed at the front end of the heat dissipating component, and the auxiliary heat sink is extended in the reserved space of the optical panel. And the optical panel is combined with each other, that is, during the operation of the vehicle, the auxiliary radiator is in contact with the externally flowing air, and the outside air is used to take away the heat, thereby improving the heat dissipation efficiency of the vehicle lighting system and extending the vehicle. The service life of the lighting system.

According to the current lighting device for a vehicle using a light-emitting diode (LED lamp) as a light source, since the brightness of a single LED lamp cannot provide a sufficient lumen number (Lumen, referred to as Lm), it must be shared by multiple It is installed in the lamp housing and can provide an appropriate amount of illuminance (E) (lux, Lux). Therefore, when several LED lights are activated, high temperature will be generated due to the illumination. The high temperature generated by the luminescence must be managed to remove it, and the LED lamp in the illuminating state can be cooled, and the operating temperature of the LED lamp should be maintained as much as possible, and the photoelectric conversion efficiency of the LED lamp is optimal. The temperature of the (thermal pad) is maintained at 25 degrees Celsius. When the temperature of the package substrate is continuously increased, the photoelectric conversion efficiency will be lower. Generally, the operating temperature of the LED lamp is about 110 degrees Celsius, and the LED lamp can be used. Maintaining about 80% of the photoelectric conversion efficiency, and the higher the operating temperature, the lower the LED light-electric conversion efficiency, and the LED lamp will decay rapidly, that is, it can not provide sufficient photoelectric conversion efficiency, and finally the fault is damaged. Therefore, in order to allow the LED lights in operation to quickly dissipate heat, to maintain good photoelectric conversion efficiency, and to ensure that the LED lights can maintain their useful life, it is currently used LED lamps are a common problem faced by lighting fixtures.

Therefore, in the prior patents such as "Vehicular illumination lamp" of US Patent Publication No. 2006120094A1 and "Head Light or fog light for motorcycles and automobiles" of US Patent No. 8,246,225B2, in order to avoid rapid decline of LED lamps, LED lamps and heat dissipation are used. The combination of heat-dissipating members allows the heat dissipating component to directly guide the high temperature generated by the LED lamp, and the high-temperature dissipating component can quickly dissipate the high temperature. However, the heat dissipating components of the aforementioned two U.S. patents (in fact, most of the lamps using LED lamps have the same problem) are covered by the optical panel and the lamp envelope. Therefore, the heat dissipating component can only use the heat source of the LED lamp. It is guided to the lamp housing, and the high temperature is dissipated by the lamp housing being in contact with external normal temperature air. However, such a heat dissipation method can only use the lamp housing as a main component for heat dissipation, and it is insufficient for a vehicle lighting device that requires a large illumination and is limited in volume. Therefore, it is often the case that the LED lamp is rapidly degraded and damaged due to poor heat dissipation efficiency.

To this end, the inventors have accumulated years of experience in the manufacture and design of related vehicle lighting systems, and have studied the problem of the poor heat dissipation efficiency of the aforementioned conventional vehicle lighting system.

The object of the present invention is to provide a high-speed and a large amount of normal-temperature air that can be used by a vehicle to be in contact with a heat-dissipating component of a lighting device, and the heat-dissipating component can be used as an LED as a heat source guiding component of the LED lamp. The direct main heat dissipating component of the lamp allows the high temperature generated by the LED lamp during the photoelectric conversion process to be quickly dissipated, and the LED lamp can be maintained at an appropriate operating temperature to maintain the photoelectric conversion efficiency of the LED lamp and enhance the vehicle. The heat dissipation effect of the lighting system extends the service life of the vehicle lighting system.

In order to achieve the above objective, the vehicle illumination system of the present invention is provided with an optical reflecting surface for reflecting the light source generated by the light emitting diode (hereinafter referred to as an LED lamp) and then projecting through the optical panel. Illuminating; providing a heat dissipating component between the housing and the optical panel; the heat dissipating component is provided with an LED lamp, the auxiliary heat sink is provided at the front end of the heat dissipating component, and the auxiliary heat sink is extended on the optical panel Leave space and combine with the optical panel, In this way, the auxiliary heat sink can be contacted with the external ambient air to improve the heat dissipation efficiency of the LED lamp and prolong the service life of the vehicle lighting system.

The vehicle illumination system of the present invention mainly has a reserved space for the optical panel. Therefore, the optical panel may be composed of a single piece or a plurality of pieces, and a reserved space is provided in the optical panel, and the reserved space is Various shapes, such as square, triangle, circle, diamond, rectangle, cross, X-cross, and other geometric shapes or irregular shapes, to match the shape of the auxiliary radiator, so that the optical panel and the auxiliary radiator of the heat dissipating component Combine with each other to maintain the transparency and complete waterproofness of the optical panel.

The vehicle lighting system of the invention still maintains the combination between the lamp housing and the heat dissipating component, and can continue to use the heat dissipating component to guide the heat source generated by the LED lamp to the casing to generate a plurality of heat dissipating pipes, thereby improving heat dissipation efficiency and maintaining LED lamp life and photoelectric conversion efficiency.

In the vehicle lighting system of the present invention, the heat dissipating component and the auxiliary heat sink are integrally formed, or the heat dissipating component and the auxiliary heat sink are independent components, and then the two are combined by a bolting component or a heat dissipating component. Integral, the auxiliary heat sink directly guides the heat dissipating component to absorb the heat source generated by the LED lamp, thereby achieving the effect of rapid heat dissipation.

1‧‧‧shell

10‧‧‧Optical reflective surface

11‧‧‧Extension

110‧‧‧ line channel

111‧‧‧Equipment components

12‧‧‧Control circuit board

120‧‧‧Equipment components

13‧‧‧ Cover

130‧‧‧Equipment components

14‧‧‧ Combination slot

2, 2a, 2b‧‧‧ optical panels

20‧‧‧External junction

21‧‧‧ Reserved space

20a‧‧‧Internal Department

3‧‧‧Heat components

30‧‧‧LED light trough

31‧‧‧LED lights

32‧‧‧Auxiliary radiator

320‧‧‧Fins

321‧‧‧Interval space

322‧‧‧ joint slot

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a front elevational view of a first embodiment of the present invention.

Figure 2 is a cross-sectional view taken along line A-A of Figure 1;

Figure 3 is a cross-sectional view taken along line B-B of Figure 1;

Figure 4 is an exploded view of the first embodiment of the present invention.

Fig. 5 is a view showing a first embodiment of the heat dissipating member of the present invention.

Figure 6 is a cross-sectional view showing a first embodiment of the heat dissipating member of the present invention.

Figure 7 is a perspective view of a first embodiment of the present invention.

Figure 8 is an exploded view of the second embodiment of the present invention.

Figure 9 is an exploded view of the third embodiment of the present invention.

In this way, in order to enable the examiner to fully understand the structural innovation of the vehicle lighting system of the present invention, the following description is made as follows: Figures 1-7, which are the first embodiment of the vehicle lighting system of the present invention, the traffic of the present invention The tool lighting system is provided with a casing 1 which is made of a metal material and can be a closed component of a vehicle lighting system, and can also be used as a main heat dissipating object for an LED lamp provided in a vehicle lighting system. The casing 1 is not limited thereto. The appearance shown in the drawings can be adapted to the needs of various types of vehicle lighting systems. An optical reflecting surface 10 is disposed on the inner surface of the casing 1, and the light source generated by the LED lamp is reflected by the optical reflecting surface 10, and then projected through the optical panel to be illuminated. An extension portion 11 is disposed on the rear side of the lamp housing 1. The extension portion 11 is provided with a line passage 110 for connecting various types of wires to interconnect the LED lamp and the control circuit board 12, and the control circuit board 12 is used to open and close the LED lamp. The control circuit board 12 is disposed on the outer side of the extension portion 11 and the control circuit board 12 is bolted to the inner side of the cover plate 13 by the plug component 120, and the cover plate 13 and the housing 1 are mounted by the plug component 130. The extension portion 11 is bolted together and can be provided with a waterproof effect to protect the control circuit board 12 from the LED lamp from moisture. The housing 1 is located at the outermost periphery of the optical reflective surface 10 and is provided with a coupling groove 14 which is matched with the shape of the optical panel 2 to fill the glued waterproof material and allows the optical panel 2 to be coupled to the lamp housing 14 . Combined into one, and has the effect of sealing moisture.

2 to 4, the vehicle illumination system of the present invention is provided with an optical panel 2, and the optical panel 2 is preferably made of a material having light transmissivity, so that the light source generated by the LED lamp can pass through the optical panel. 2 for lighting purposes. The optical panel 2 is formed as a single piece (as shown in FIGS. 4 and 8); or as two pieces (as shown in FIG. 9) or a plurality of pieces, as long as the optical function of the optical panel can be maintained, from one piece or two pieces or plural The composition of the film is not impossible. Further, an outer joint portion 20 is provided on the inner side of the optical panel 2, and the outer joint portion 20 is integrated with the joint groove 14 of the lamp housing (see FIGS. 2 and 3) to produce a moisture-tight effect. The optical panel 2 is provided with a reserved space 21, and the reserved space 21 is provided in a single or two or more number to match the setting state of the auxiliary heat sink of the heat dissipating component 3, and the reserved space 21 is single or two. Or more than two, all of which can be square (as shown in Figures 4 and 7), or triangular, or circular, or diamond, or rectangular (Figure 8), or cross, or X-cross type, etc. Shape, none No, it depends on the state of the auxiliary heat sink of the heat dissipating component. The aforementioned reserved space 21 or two or more optical panels 2a, 2b may be interposed (see FIG. 9). The foregoing reserved space 21 is not limited to be disposed at the central portion of the optical panel 2, and may be disposed at a position close to the circumference of the housing, or may be provided in the vicinity of the housing of the optical panel. The position where the aforementioned reserved space 21 is provided on the optical panel is not limited. In order to allow the optical panels 2, 2a, 2b and the auxiliary heat sink of the heat dissipating component 3 to be tightly coupled, the optical panel 2 is disposed inside the periphery of the reserved space 21 with an inner joint portion 20a for assisting the heat dissipating component 3. The coupling groove of the heat sink is filled with the glue waterproof material, and the inner joint portion 20a of the optical panel 2 is integrated with the joint groove of the auxiliary heat sink of the heat dissipating member 3 to form a sealed moisture-proof effect.

As shown in FIG. 2 to FIG. 4, the vehicle illumination system of the present invention is provided with a heat dissipating component 3, and the heat dissipating component 3 is bolted to the front side of the housing 1 on the front side of the housing 11 (see FIG. 2). The component 3 is provided with an LED lamp slot 30, and the LED lamp 31 is disposed thereon, and can be disposed in cooperation with the number of the LED lamps 31. The front end of the heat dissipating component 3 is provided with an auxiliary heat sink 32, and the auxiliary heat sink 32 is square. (as shown in Figures 4 and 7), or a variety of geometric shapes or irregular shapes such as a triangle, or a circle, or a diamond, or a rectangle (as shown in Figure 8), or a cross, or an X-cross shape, The shape and state of the reserved space 21 of the optical panel 2. The purpose of the auxiliary heat sink 32 being formed into a fin shape is to increase the heat dissipation area so that the external normal temperature air directly flows into the space between the adjacent fins 320 of the auxiliary heat sink 32 during the running of the vehicle. 321 (as shown in Figures 5 and 6), and the heat is taken out through the outside air, thereby improving the heat dissipation effect, of course, is not limited to the shape of the fin disclosed in the drawing, or is not made into a fin shape, and is made into a block shape. As long as it can play a cooling effect, it is impossible. Moreover, since the auxiliary heat sink 32 of the heat dissipating component 3 is disposed outside the overall vehicle lighting system, there is an optimum heat dissipation efficiency, and the LED lamp 31 can maintain a better operating temperature and generate the most Good optical conversion efficiency, providing the best illumination, and maintaining the service life of the vehicle lighting system. The auxiliary heat sink 32 is provided with a coupling groove 322 (see FIGS. 5 and 6), and is filled with a glued waterproof material, and then the inner joint portion 20a of the optical panel 2 and the coupling groove 322 of the auxiliary heat sink 32 are integrated with each other, that is, It can produce the effect of sealing moisture.

The vehicle lighting system of the present invention, the heat dissipating component 3 and the auxiliary radiator 32 is integrally formed, or the heat dissipating component 3 and the auxiliary heat sink 32 are independent components, and then the two are combined by a plugging component or a heat dissipating component, and the heat dissipating component is directly guided by the auxiliary heat sink. Absorbed from the heat source generated by the LED lamp, it can also achieve the effect of rapid heat dissipation.

In summary, the vehicle lighting system of the present invention mainly uses the reserved space provided by the optical panel, so that the auxiliary heat sink of the heat dissipating component can be disposed on the front surface of the vehicle lighting system and directly contacts the external normal temperature air. The heat dissipating component is guided from the heat source of the LED lamp, and is directly dissipated by direct contact with the external normal temperature air through the auxiliary heat sink 32. Of course, some of the heat source still needs to be dissipated by the casing 1 so that the traffic of the present invention The tool lighting system has multiple heat-dissipating pipes. In this way, the heat-dissipating efficiency of the LED lamp can be improved, the photoelectric conversion efficiency of the LED lamp should be ensured, and the normal decay period of the LED lamp should be maintained, and the lamp for the vehicle can be truly extended. The service life is sufficient to show that the present invention is beneficial and conforms to the progressiveness and novelty stipulated by the Patent Law.

1‧‧‧shell

10‧‧‧Optical reflective surface

11‧‧‧Extension

110‧‧‧ line channel

111‧‧‧Equipment components

120‧‧‧Equipment components

13‧‧‧ Cover

130‧‧‧Equipment components

14‧‧‧ Combination slot

2‧‧‧Optical panel

20‧‧‧External junction

21‧‧‧ Reserved space

20a‧‧‧Internal Department

3‧‧‧Heat components

30‧‧‧LED light trough

31‧‧‧LED lights

32‧‧‧Auxiliary radiator

320‧‧‧Fins

321‧‧‧Interval space

322‧‧‧ joint slot

Claims (13)

A vehicle illumination system includes at least a housing, an optical panel is fixed at a front end of the housing, and a reserved space is disposed on the optical panel; a heat dissipating component is disposed on the heat dissipating component, and the heat dissipating component is disposed The auxiliary heat sink is disposed at the front end, and the auxiliary heat sink is extended in the reserved space of the optical panel, and the heat dissipating component is combined with the optical panel to form a sealed moisture-proof effect, so that the auxiliary heat sink can directly contact the external normal temperature air. It produces the effect of direct heat dissipation and improves the heat dissipation efficiency of the LED lamp. The vehicle illumination system according to claim 1, wherein the inner surface of the casing is provided with an optical reflecting surface, and the light source generated by the LED lamp is reflected by the optical reflecting surface, and then projected through the optical panel; the shell An extension portion is disposed on the rear side of the body, and a control circuit board is disposed outside the extension portion, and the control circuit board is bolted to the inner side of the cover plate by the bolting component, and the extension portion of the cover plate and the housing is bolted by the bolting component. The outer casing is provided with a coupling groove, and the coupling groove is matched with the shape of the optical panel to fill the glue waterproof material and then integrate the optical panel with the coupling groove of the lamp housing. A vehicle illumination system includes at least a casing, and an optical reflecting surface is disposed on the inner surface, and the light source generated by the LED lamp is reflected by the optical reflecting surface, and then projected through the optical panel; the optical panel is pre-set The space is reserved, and the peripheral space of the optical panel can be combined with the auxiliary heat sink of the heat dissipating component to generate a moisture-proof effect; the heat dissipating component is fixed between the housing and the optical panel, and the heat dissipating component An LED light trough is disposed for the LED light, and the heat dissipating component is provided with an auxiliary heat sink. The auxiliary heat sink is disposed on the reserved space of the optical panel and is combined with the optical panel to obtain the auxiliary heat sink and the external Air contact at room temperature to improve the heat dissipation efficiency of the LED lamp. The vehicle lighting system of claim 3, wherein the rear side of the casing is provided with an extension portion, a control circuit board is disposed outside the extension portion, and the control circuit board is bolted to the inner side of the cover plate by the bolting member, and then The bolting component bolts the cover plate and the extension portion of the housing into one body; the outer casing is provided with a coupling groove, and the coupling groove is matched with the shape of the optical panel to fill the glue waterproof material and then combine the optical panel with the lamp shell The slots are integrated into one. The vehicle lighting system of claim 1 or 3, wherein the optical panel is a single piece; or two pieces; or a plurality of pieces, the reserved space of the optical panel is single; or two; or two or more In order to match the setting state of the auxiliary heat sink of the heat dissipating component; the reserved space may be disposed at a central portion of the optical panel or at an annular position of the optical panel close to the housing. The vehicle illumination system according to claim 1 or 3, wherein the inner side of the optical panel is provided with an outer joint portion, and the joint portion is combined with the joint groove of the lamp shell to produce a moisture-tight effect. The vehicle lighting system according to claim 1 or 3, wherein the reserved space of the optical panel is square, or triangular, or circular, or diamond-shaped, or rectangular, or cross-shaped, or X-crossing; or irregular The shape is matched to the shape of the auxiliary heat sink of the heat dissipating component. The vehicle lighting system according to claim 1 or 3, wherein the reserved space of the optical panel is two or more than two optical panels. The vehicle lighting system according to claim 1 or 3, wherein an inner joint portion is disposed on a inner side of a reserved space of the optical panel to cooperate with a coupling groove of the auxiliary heat sink of the heat dissipating component to assist the optical panel and the heat dissipating component The radiators are combined with each other. The vehicle lighting system according to claim 1 or 3, wherein the heat dissipating component is bolted to the front side of the extension provided by the housing, and the heat dissipating component is provided with an LED lamp slot for the LED lamp. The vehicle lighting system of claim 1 or 3, wherein the auxiliary heat sink of the heat dissipating component is square, or triangular, or circular, or diamond, or rectangular, or cruciform, or X-crossing, or irregular Shape to match the shape and state of the reserved space of the optical panel. The vehicle lighting system according to claim 1 or 3, wherein the auxiliary heat sink of the heat dissipating component is provided with a plurality of fins, and a space is provided between the fins, so that the external normal temperature air directly flows into the auxiliary heat sink. The space between the adjacent fins is taken out and the heat is taken out through the outside air, thereby improving the heat dissipation effect. The vehicle lighting system of claim 1 or 3, wherein the auxiliary heat sink of the heat dissipating component is in the form of a block.