Luminous vehicle logo

Abstract

The utility model discloses a light-emitting car logo which comprises a lamp shell, a PCB (printed circuit board) substrate, a colored light equalizing plate and a lampshade, the lampshade is detachably connected with the lamp shell and seals one end of the lamp shell. The PCB substrate and the colored light uniformizing plate are fixedly arranged in the lamp shell, and the colored light uniformizing plate is arranged between the PCB substrate and the lampshade; a white LED light source is arranged on the PCB substrate; the lampshade comprises a light-transmitting area arranged in the central area and a light-shading area arranged around the light-transmitting area, and a colored plating layer is arranged on the inner side of the light-transmitting area; the color of the colored light equalizing plate is the color corresponding to the wave band where the colored plating layer absorbs most light emitted by the white LED light source. According to the utility model, the white light emitted by the white LED light source penetrates through the colored light equalizing plate and the lampshade provided with the colored plating layer and then emits the white light which accords with regulations and definitions.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile logos, and more specifically, to a luminous automobile logo. Background Art

[0002] In the past, the logos on cars were usually non-luminous, and were only set to different colors according to demand; nowadays, many car companies light up the car logo for the sake of beauty and highlighting, and make the lampshade of the logo light a semi-transparent colored coating, so that the coating color is displayed when the light source is not lit, and white light is displayed when the light source is lit. However, the light color of the white light LED light source through the semi-transparent colored coating does not meet the definition of white in the "Regulations on the Installation of External Lighting and Light Signal Devices for Motor Vehicles and Trailers" (GB 4785-2019), and is also significantly different from the color of other lights that are lit together (such as grille lights), which deteriorates the overall feeling. Utility Model Content

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described below.

[0004] In order to achieve these purposes and other advantages according to the utility model, there is provided a luminous vehicle logo, comprising: a lamp housing, a PCB substrate, a colored light-diffusing plate and a lampshade; the lampshade is detachably connected to the lamp housing and closes one end of the lamp housing; the PCB substrate and the colored light-diffusing plate are fixedly arranged in the lamp housing, and the colored light-diffusing plate is arranged between the PCB substrate and the lampshade; a white LED light source is arranged on the PCB substrate; the lampshade comprises a light-transmitting area arranged in a central area and a light-shielding area arranged around the light-transmitting area, and a colored coating is arranged on the inner side of the light-transmitting area; the color of the colored light-diffusing plate is the color corresponding to the wavelength band in which the colored coating absorbs the most light emitted by the white LED light source.

[0005] Preferably, the colored coating is a gold coating, and the colored light-diffusing plate is a yellow-orange light-diffusing plate.

[0006] Preferably, a heat sink is provided on a side of the PCB substrate facing away from the colored light-diffusing plate.

[0007] Preferably, the white LED light sources are distributed in a ring shape on the PCB substrate and face the light-transmitting area.

[0008] Preferably, the colored light-diffusing plate is a colored PC plate or a colored transparent acrylic plate.

[0009] The utility model at least has the following beneficial effects:

[0010] The luminous vehicle logo provided by the utility model arranges a colored light-diffusing plate between a lampshade with a colored coating and a white LED light source, so as to adjust the color of the white light emitted by the white LED light source in advance, so that the white light emitted by the white LED light source emits white light that meets the regulatory definition after passing through the colored light-diffusing plate and the lampshade with a colored coating.

[0011] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the luminous vehicle logo of the utility model;

[0013] Figure 2 This is a spectrum intensity distribution diagram of the light emitted by the white LED light source of the utility model;

[0014] Figure 3 This is a schematic diagram of the absorption coefficient of the gold coating of the utility model to light of different wavelengths; DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0016] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0017] like Figure 1As shown, the utility model provides a luminous vehicle logo, comprising: a lamp housing 4, a PCB substrate 3, a colored light-diffusing plate 2 and a lampshade 1; the lampshade 1 is detachably connected to the lamp housing 4 and closes one end of the lamp housing 4; the PCB substrate 3 and the colored light-diffusing plate 2 are fixedly arranged in the lamp housing 4, and the colored light-diffusing plate 2 is arranged between the PCB substrate 3 and the lampshade 1; a white LED light source 5 is arranged on the PCB substrate 3; the lampshade 1 comprises a light-transmitting area 12 arranged in a central area and a light-shielding area 11 arranged around the light-transmitting area 12, and a colored coating is arranged on the inner side of the light-transmitting area 12; the color of the colored light-diffusing plate 2 is the color corresponding to the wavelength band in which the colored coating absorbs the most light emitted by the white LED light source.

[0018] In this technical solution, the shape of the light-transmitting area 12 is consistent with the shape of the vehicle logo. For example, Figure 1 The light-transmitting area 12 is in the shape of the letter P. The inner surface of the light-transmitting area 12 is plated with a colored coating, so that the vehicle logo can present the color of the colored coating when the white LED light source is not on. The colored light-diffusing plate 2 is used to adjust the color of the light emitted by the white LED light source in advance, so that the white light presented by the light after color adjustment after passing through the colored coating and the light-transmitting area 12 meets the definition of "Installation Regulations for External Lighting and Light Signal Devices of Motor Vehicles and Trailers" (GB 4785-2019). The color of the colored light-diffusing plate is determined according to the spectrum of the light emitted by the white LED light source after passing through the colored coating, specifically the color corresponding to the wavelength band in which the colored coating absorbs the most light emitted by the white LED light source. Preferably, the lampshade 1 can be connected to the lamp housing 4 by a snap buckle; the colored light-diffusing plate 2 is spaced apart from the PCB substrate 3, and a limit block is provided on the inner wall of the lamp housing 4 to limit the spacing between the colored light-diffusing plate 2 and the PCB substrate 3.

[0019] In another technical solution, the colored coating is a gold coating, and the colored light-diffusing plate is a yellow-orange light-diffusing plate.

[0020] The light-transmitting area is plated with a gold coating, so that the light-transmitting area of ​​the lampshade 1 appears golden when there is no light source. The relative intensity of the light spectrum emitted by the white LED light source 5 is as follows: Figure 2 As shown by the "dashed line" in the figure, in this spectrum, its chromaticity information (based on CIE1931) is: x=0.3164, y=0.3222, which meets the definition range of "white light" for vehicle lights in GB4785-2019. When the lampshade 1 is coated with a gold coating, the spectrum of light passing through the lampshade 1 is as follows Figure 2As shown by the "solid line" in the figure, under this spectrum, its chromaticity information (based on CIE1931) is: x=0.3023, y=0.3093, which does not meet the definition range of "white light" for headlights in GB4785-2019, and the visual color is blue. Figure 2 As shown, the white light emitted by the white LED light source 5 is mainly composed of blue-violet light in the 400-500nm band and yellow-orange light in the 500-700nm band. Figure 3 As shown, the gold coating has different absorption coefficients for light of different wavelengths emitted by the LED. It absorbs less blue-violet light in the 400-500nm band and more yellow-orange light in the 500-700nm band. Therefore, after the outer lampshade with a gold coating is covered, there is more blue-violet light and less yellow-orange light. Therefore, the white light emitted by the white LED light source 5 is adjusted in advance through the yellow-orange light-homogenizing plate, and the chromaticity information of the light spectrum after passing through the gold-coated lampshade 1 (based on CIE1931) is: x=0.3139, y=0.3145, which meets the definition of "white light" for car lights in GB4785-2019 and is visually white.

[0021] In another technical solution, a heat sink is provided on the side of the PCB substrate 3 facing away from the colored light homogenizing plate 2. The heat sink is provided close to the back of the PC substrate 3. Specifically, a wire hole is provided on the heat sink to lead out the wires of the PCB substrate 3.

[0022] In another technical solution, the white LED light source 5 is distributed in a ring shape on the PCB substrate 3 and is directly opposite to the light-transmitting area 12.

[0023] In another technical solution, the colored light-diffusing plate 2 is a colored PC plate or a colored transparent acrylic plate. After the colored light-diffusing plate 2 determines the color of the colored light-diffusing plate 2 according to the spectrum of the light emitted by the white LED light source after passing through the colored coating, the PC plate or transparent acrylic plate of the corresponding color can be customized, such as a yellow-orange PC plate or a yellow-orange transparent acrylic plate. The colored light-diffusing plate 2 can also be obtained by coating or pasting a color layer of a corresponding color on a colorless and transparent light-diffusing plate substrate.

[0024] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A luminous vehicle logo, characterized in that: include: A lamp housing, a PCB substrate, a colored light-diffusing plate and a lampshade; the lampshade is detachably connected to the lamp housing and closes one end of the lamp housing; the PCB substrate and the colored light-diffusing plate are fixedly arranged in the lamp housing, and the colored light-diffusing plate is arranged between the PCB substrate and the lampshade; a white LED light source is arranged on the PCB substrate; the lampshade includes a light-transmitting area arranged in a central area and a light-shielding area arranged around the light-transmitting area, and a colored coating is arranged on the inner side of the light-transmitting area; the color of the colored light-diffusing plate is the color corresponding to the wavelength band in which the colored coating absorbs the most light emitted by the white LED light source.

2. The luminous vehicle logo according to claim 1, characterized in that: The colored coating is a gold coating, and the colored light-dispersing plate is a yellow-orange light-dispersing plate.

3. The luminous vehicle logo according to claim 1, characterized in that: A heat sink is arranged on a side of the PCB substrate away from the colored light-diffusing plate.

4. The luminous vehicle logo according to claim 1, characterized in that: The white LED light sources are distributed in a ring shape on the PCB substrate and face the light-transmitting area.

5. The luminous vehicle logo according to claim 1, characterized in that: The colored light-homogenizing plate is a colored PC plate or a colored transparent acrylic plate.

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