TWI464340B - Direct LED front fog lamps - Google Patents

Description

Direct fog lamp for direct-use LED vehicles

The invention relates to a technical field of an automobile front fog lamp, in particular to a F3 class front fog lamp which can comply with the "Car Safety Test Benchmark" which will be implemented by the Ministry of Communications of the Republic of China on January 1, 102. The front fog lamp for direct light type LED vehicles with light distribution standards.

"Car" is the most important and widely used transportation vehicle on land. Therefore, the structure and design of the car are very important and safe. Therefore, the safety problem of vehicle use is the vehicle management of various countries. The main core focus is that more and more countries are promoting the “vehicle type safety inspection system” to check the safety specifications of vehicles before mass production. In order to make the detection of vehicles and their devices based on the basis, the traffic authorities of various countries in the world have relatively set the "standards for vehicle safety testing" as the standard for the vehicle type safety inspection system. Since the implementation of the vehicle type safety inspection system in the Republic of China in 1987, the Ministry of Communications has increased the number of vehicles and related vehicle safety inspection regulations year by year, so as not only effectively improving the vehicle safety management system and promoting industrial development, but also the number of accidents. The number of casualties has been significantly reduced, thereby ensuring safe driving and reducing the social costs of accidents.

In particular, with the development of technology and industry and the changes in the environment, the “Car Safety Test Benchmarks” of various countries will be modified to ensure that they can meet the most realistic conditions to ensure the safety of the users. In recent years, in order to keep in line with the world and to further protect the safety of people's lives and property, the Ministry of Communications of the People's Republic of China is committed to revising the "safety test standards for vehicles" towards the more stringent regulations of advanced countries in order to promote the development of the domestic automobile industry and ensure the safety of vehicles. Safe to use. In particular, the “Vehicle Safety Test Benchmark” to be implemented by the Ministry of Communications of China on January 1, 102 has been substantially revised to the same level as EU regulations.

Please refer to the first and second figures, which are the light distribution standards for F3 front fog lamps in Chapter 32 of the "Safety Testing Standards for Vehicles" to be implemented by the Ministry of Communications of the Republic of China on January 1, 102. The light form conforming to the standard forms a flat rectangle between 0 and -6 degrees of the horizontal line and between -35 and 35 degrees of the central axis. The structure of automobile lamps commonly found on the market is as shown in Taiwan Patent No. I296243, M356645, M391490, I288217, and M322504. Among them, the method of projecting the upper and lower projection lights (upper and lower) as shown in the publications No. I296243, M356645, and M391490, will greatly reduce the luminosity, so that it cannot meet the standards of the above regulations, and its system is The circle is also larger in size and more space-consuming. The lamps shown in the publications No. I288217 and No. M322504 have a circular Lamberition light shape when the LED light is emitted, so that the light shapes projected outside the lamp are oval, and some of them fall on the horizontal line. However, it is easy to cause glare problems, so it does not meet the above criteria for front fog lamps, and only meets the standard of fog lamps after the general requirements are less stringent or as auxiliary lighting.

In view of the above, the inventors have intensively conceived the above-mentioned problems, and actively researched and improved the trial and development to design the present invention.

The main object of the present invention is to provide a direct-acting LED vehicle that meets the light distribution standard of the F3 front fog lamp in Chapter 32 of the "Safety Test Standard for Vehicles" to be implemented by the Ministry of Communications of the Republic of China on January 1, 102. Use the front fog light.

The front fog lamp for a direct-acting LED vehicle according to the present invention comprises a lamp housing, a light source and a lens. Wherein, the lamp housing has a chamber facing the front opening, and the chamber is surrounded by a fixed surface, two single-order reflecting surfaces and two multi-step reflecting surfaces. The fixing surface is rectangular and has a perforation therethrough. The two single-order reflecting surfaces are respectively extended symmetrically in a parabolic shape by the upper and lower sides of the fixing surface. The two multi-step reflecting surfaces are respectively extended symmetrically forward by the left and right sides of the fixing surface, and the multi-step reflecting mask has a plurality of parabolic extending reflecting surfaces for reflecting light. The light source includes a substrate and a plurality of LEDs coupled to the front surface of the substrate. The substrate is coupled to the rear side of the lamp housing, and the plurality of LEDs are positioned in the perforation to allow direct illumination and projection through the openings of the lamp housing through the refraction of the two single-order reflective surfaces and the two multi-step reflective surfaces Go out to form a flat rectangular light shape whose luminosity gradually weakens from the center outward. The lens is coupled to the lamp housing to cover the opening of the chamber. a side of the lens facing a side of the lamp housing having an upper side inclined at an angle toward the light source, the diffraction surface having a plurality of laterally disposed triangular ridges for generating a diffractive effect The light shape projected by the light source falls below the horizontal line of 0 degrees.

In this way, the above-mentioned structure can be made to comply with the light distribution standard for F3 front fog lamps in Chapter 32 of the "Safety Test Standard for Vehicles" to be implemented by the Ministry of Communications of the Republic of China on January 1, 102. Wherein, the two single-order reflective surface systems can utilize the characteristic of the parabolic curve to focus and project the light rays projected upward and downward by the light source to form a flat light shape to conform to the prescribed light shape height. The complex extended reflecting surface on the two multi-order reflecting surfaces can be focused by the parabolic curve to make the projected light shape width conform to the specification. In addition, the plurality of triangular ridges on the lens can dissipate the stray light projected by the light source, especially the diffraction effect of the lens, and the light shape projected by the light source can be The horizontal line is below 0 degrees. In particular, the plurality of LEDs can be used to directly direct the light and the plurality of extended reflection surfaces are arranged in multiple layers, and the light shape can have sufficient luminosity, and the luminosity can be made uniform, thereby conforming to regulations. Moreover, the overall system has a flat rectangular shape, so the volume is small and does not occupy space.

Referring to FIG. 3 to FIG. 6 , the first embodiment of the front fog lamp for a direct-emitting LED vehicle according to the present invention indicates that the front fog lamp for the direct-emitting LED vehicle includes a lamp housing 1 . Light source 2 and a lens 3. among them:

The lamp housing 1 comprises a flat rectangular rear side panel 10 and an upper side panel 11 extending from the four sides of the rear side panel 10, a lower side panel 12, a left side panel 13 and a right side panel 14, the rear side panel 10 The upper side panel 11, the lower side panel 12, the left side panel 13, and the right side panel 14 enclose a chamber 15 that opens toward the front. The inner side of the rear side panel 10 forms a fixing surface 100, and has a through hole 101 penetrating the front and rear. The upper and lower side sheets 11, 12 are bent into a parabolic shape, and the inner side surfaces of the both are formed into a symmetrical and parabolically-shaped single-step reflecting surface 110, 120. The left and right side sheets 13, 14 are bent into two layers, so that the inner side surfaces of the two form a symmetrical forwardly expanding multi-step reflecting surface 130, 140, and the multi-step reflecting surfaces 130, 140 include two extending reflecting surfaces. 131, 141 and a connecting surface 132, 142 are connected between the two extending reflecting surfaces 131, 141. The extended reflecting surfaces 131, 141 are parabolic and are available for reflecting light. The connecting faces 132, 142 are parallel to the fixing face 100.

The light source 2 includes a substrate 20 and a plurality of LEDs 21 horizontally spacedly coupled to the front surface of the substrate 20 for projecting light forward. The substrate 20 is bonded to the outer side surface of the rear side panel 10. The plurality of LEDs 21 are positioned in the perforations 101 and are positioned in focus on the two single-order reflecting surfaces 110, 120. In the present invention, the number of the LEDs 21 may be two, three or more.

The lens 3 is coupled to the lamp housing 1 for covering the opening of the chamber 15. The lens 3 faces a side surface of the lamp housing 1 and has an upper side facing the direction of the light source 2 at an angle of a diffraction surface 30. The upper and lower portions of the diffraction surface 30 have a plurality of laterally arranged triangular domes. The pattern 31 has a blank block 32 with no triangular ridges 31 in the center. In the present example, the thickness of the lens 3 is gradually reduced from the upper side to the lower side. In the present invention, the diffraction surface 30 is disposed on a side facing the lamp housing 1 to prevent dust or other impurities from adhering to the plurality of triangular ridges 31 to affect the lighting effect. The face 30 can also be disposed on a side facing away from the lamp housing 1, both of which can produce the same diffractive effect. Further, in the present invention, the diffraction surface 30 may be covered with a plurality of triangular ridges 31 on the entire surface.

Since the two single-order reflecting surfaces 110 and 120 forming the appropriate angles of the present invention can utilize the parabolic curve focusing characteristic, the light rays projected by the light source 2 are projected and projected to make the light shape projected from the opening of the lamp housing 1 A flat shape to make the height of the light conform to the regulations. In addition, the two multi-step reflecting surfaces 130, 140 forming the appropriate angles of the present invention can utilize the parabolic curve focusing characteristics of the upper two extending reflecting surfaces 131, 141 to make the projected light-shaped width conform to the specification. Furthermore, the plurality of triangular ridges 31 on the lens 3 of the present invention can be used to dissipate the stray light projected by the light source 2, especially in combination with the diffraction effect of the lens 3, and the light source 2 can be further The projected light shape falls below the horizontal line of 0 degrees. In particular, the use of the plurality of LEDs 21 to direct the light, the two layers of the extended reflecting surfaces 131, 141, and the blank block 32 of the lens 3 and the triangular ridges 31 can be designed to have the above-described light shape. Sufficient luminosity, and its luminosity gradually weakens from the center to the outside, and thus meets the regulations. Therefore, the present invention can meet the requirements of the light distribution standard for F3 front fog lamps in Chapter 32 of the "Safety Test Standard for Vehicles" to be implemented by the Ministry of Communications of the Republic of China on January 1, 102, by the above-mentioned special structural design. That is, the light shape is an oblate rectangle falling between 0 to -6 degrees of the horizontal line and -35 to 35 degrees of the central axis, and the luminosity is gradually weakened uniformly from the center to the outside, as shown in the sixth figure.

Referring to the seventh embodiment, which is a second embodiment of the present invention, the structure thereof is substantially the same as that of the first embodiment, except that the upper side panel 11 of the lamp housing 1 of the second embodiment is slightly shorter than the lower side. The sheet 12 is configured such that when the lens 3 is mounted on the lamp housing 1, the upper side is inclined at an angle slightly toward the direction of the light source 2, thereby correcting the error of the lens 3 in actual production to ensure the optical shape energy. It falls below the horizontal line by 0 degrees. Of course, the manner in which the lens 3 is mounted on the lamp housing 1 at an angle slightly inclined toward the direction of the light source 2 is not only the structure of the second embodiment, but also directly to the lamp housing 1 of the first embodiment. The upper and lower sides of the contact surface with the lens 3 are respectively provided with spacers or washers of different thicknesses or numbers, which will not be further described.

Referring to the eighth embodiment, it is a third embodiment of the present invention, and its structure is substantially the same as that of the second embodiment, except that the lens 3 of the third embodiment has a uniform thickness. In this way, the manufacture of the lens 3 can be made easier, so that the manufacturing cost can be reduced.

Referring to FIG. 9 , it is a fourth embodiment of the present invention, and its structure is substantially the same as that of the first embodiment, except that the left and right side sheets 13 and 14 of the lamp housing 1 of the fourth embodiment are curved. The multi-step reflecting surfaces 130, 140 formed into three-layered shapes such that the inner sides of the two are formed include three extending reflecting surfaces 131, 141 and two connecting faces 132, 142. Thereby, the luminosity of the projected light shape can be made more uniform. In the present invention, of course, the left and right side sheets 13, 14 of the lamp housing 1 can also be bent into four, five or more layers, and the more the number of layers, the light-shaped projection The more uniform the luminosity.

In summary, since the present invention has the above advantages and practical value, and has not seen the same or similar technology published or disclosed before, the present invention has met the novelty and progressive requirements of the invention patent, and applied according to law. .

1. . . Lamp housing

10. . . Back side piece

100. . . Fixed surface

101. . . perforation

11. . . Upper side piece

12. . . Lower side piece

110, 120. . . Single-order reflecting surface

13. . . Left side piece

14. . . Right side film

130, 140. . . Multi-step reflective surface

131, 141. . . Extended reflective surface

132, 142. . . Connection surface

15. . . Room

2. . . light source

20. . . Substrate

twenty one. . . led

3. . . lens

30. . . Diffraction surface

31. . . Triangular ridge

32. . . Blank block

The first picture is a schematic diagram of the light distribution standard for F3 front fog lamps in Chapter 32 of the "Safety Test Standard for Vehicles" to be implemented by the Ministry of Communications of the Republic of China on January 1, 102.

The second picture shows the light distribution standard data sheet for F3 front fog lamps in Chapter 32 of the "Safety Test Standard for Vehicles" to be implemented by the Ministry of Communications of the Republic of China on January 1, 102.

The third figure is a perspective exploded view of the first embodiment of the present invention.

Figure 4 is an enlarged schematic cross-sectional view showing a first embodiment of the present invention.

Figure 5 is a schematic enlarged cross-sectional view showing a first embodiment of the present invention.

Fig. 6 is a schematic view showing the distribution of light shape, position and luminosity produced by the first embodiment of the present invention.

The seventh figure is a second embodiment of the present invention.

The eighth figure is a third embodiment of the present invention.

The ninth figure is a fourth embodiment of the present invention

1. . . Lamp housing

10. . . Back side piece

100. . . Fixed surface

101. . . perforation

11. . . Upper side piece

12. . . Lower side piece

110, 120. . . Single-order reflecting surface

13. . . Left side piece

14. . . Right side film

130, 140. . . Multi-step reflective surface

131, 141. . . Extended reflective surface

132, 142. . . Connection surface

15. . . Room

2. . . light source

20. . . Substrate

twenty one. . . led

3. . . lens

30. . . Diffraction surface

31. . . Triangular ridge

32. . . Blank block

Claims (9)

The utility model relates to a front fog lamp for a direct-acting LED vehicle, comprising: a lamp housing having a cavity facing the front opening, the cavity being surrounded by a fixed surface, two single-order reflecting surfaces and two multi-step reflecting surfaces, the fixing The surface is rectangular and has a through hole penetratingly extending from the upper and lower sides of the fixing surface in a parabolic shape, and the two multi-step reflecting surfaces are respectively left by the fixing surface The right side edge is symmetrically extended forwardly, and the multi-step reflective mask has a plurality of parabolic extension reflective surfaces for reflecting light; a light source includes a substrate and a plurality of LEDs coupled to the front surface of the substrate, the substrate being bonded to the lamp housing On the rear side, the plurality of LEDs are positioned in the perforations, and the light can be directly projected through the openings of the lamp housing through the refraction of the two single-order reflective surfaces and the two multi-step reflective surfaces to form a luminosity from the center a flat rectangular shape that gradually weakens outwardly; and a lens coupled to the lamp housing for covering an opening of the housing, the lens facing the side of the lamp housing having an upper side inclined at an angle toward the light source One winding Surface, the diffractive surface has a triangular shaped ridge Prism plurality of transversely disposed, for generating a diffraction effect so that the light source projects a light pattern falling below the 0 ° horizontal. The front fog lamp for a direct-emitting LED vehicle according to claim 1, wherein the lamp housing comprises a rear side piece of a flat rectangular shape and an upper side piece and a lower side piece extending from one of the four sides of the rear side piece, a left side piece and a right side piece are arranged to surround the chamber, the substrate of the light source is coupled to the outer side surface of the rear side piece, and the upper side piece and the lower side piece are bent into a parabolic shape so that the inner side surface thereof forms the single piece In the step reflection surface, the left side piece and the right side piece are bent into a class shape such that the inner side surface forms the multi-step reflection surface, and the plurality of extension reflection surfaces of the multi-step reflection surface are connected by a plurality of connection faces. The direct fog lamp for a front-end LED vehicle according to claim 2, wherein the upper side of the lens is coupled to the lamp housing at an oblique angle to the direction of the light source. The front fog lamp for a direct-emitting LED vehicle according to claim 3, wherein the upper side is slightly shorter than the lower side, and the lens is mounted on the lamp housing to form an upper side toward the light source. Tilt at an angle. The front fog lamp for a direct-emitting LED vehicle according to the fourth aspect of the invention, wherein the thickness of the lens is gradually reduced from an upper side to a lower side. The direct fog lamp for a front-end LED vehicle according to claim 4, wherein the lens has a uniform thickness. The direct fog lamp for a front-end LED vehicle according to any one of claims 1 to 6, wherein the center of the diffraction surface of the lens has a blank block without a triangular ridge. The direct fog lamp for a direct-vehicle LED vehicle according to claim 7, wherein the plurality of LEDs are horizontally arranged on the substrate and are positioned at a focus of the two single-order reflecting surfaces. The front fog lamp for a direct-emitting LED vehicle according to claim 8, wherein an angle formed between the two single-order reflecting surfaces is such that a height of the projected light shape is between 0 and -6 degrees of a horizontal line. The angle formed between the two multi-step reflecting surfaces is such that the width of the projected light shape is between -35 and 35 degrees on the central axis.