Vehicle exterior article and vehicle exterior structure

By using a cover panel designed with light-shielding and non-blocking layers in the vehicle exterior structure, the problem of appearance differences between the luminous grille during the day and night is solved, and the appearance consistency between the luminous grille and the front bumper and the functionality of the millimeter wave sensor is achieved.

CN120327433APending Publication Date: 2025-07-18TOYODA GOSEI CO LTD
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Patent Information

Application Number
CN202510002032.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-01-17
Filing Date
2025-01-02
Publication Date
2025-07-18

AI Technical Summary

Technical Problem

In the existing vehicle exterior structure, the appearance of the luminescent grille is significantly different during the day and at night, affecting the overall appearance quality of the vehicle.

Method used

The cover panel design is adopted with a light-shielding layer and a non-light-shielding layer. The appearance color difference between the light-transmitting part and the non-light-transmitting part is 5 or less, and an electromagnetic wave transmitting part is introduced into the cover panel to cover the millimeter wave sensor to ensure the appearance consistency and functionality of the light source when it is lit and unlit.

Benefits of technology

The appearance consistency between the luminous grille and the front bumper is improved, the overall appearance quality of the vehicle is improved, and the detection accuracy of the millimeter wave sensor is ensured.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a vehicle exterior article and a vehicle exterior structure. The vehicle exterior article includes a light source and a cover panel covering the light source. The cover panel has: a base material layer; a light-shielding layer and a non-light-shielding layer arranged side by side in the plane direction; and a colored layer disposed on the surface side of the light-shielding layer and the non-light-shielding layer. A region of the cover panel, which overlaps the non-light-shielding layer and is closer to the surface side than the non-light-shielding layer, constitutes a light-transmitting part through which visible light irradiated from the light source passes. A region of the cover panel overlapping the light-shielding layer and a region closer to the surface side than the light-shielding layer constitute a non-translucent portion through which visible light irradiated from the light source cannot pass. When the light source is not turned on, the color difference [Delta] E in appearance between the light-transmissive portion and the non-light-transmissive portion is 5 or less.
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Description

Technical Field

[0001] The present disclosure relates to exterior parts for vehicles and an exterior structure of a vehicle. Background Art

[0002] Generally, as a front grille constituting an exterior structure of a vehicle, a light-emitting grille is known (for example, refer to Japanese Unexamined Patent Application Publication No. 2022-35593). Such a light-emitting grille has a translucent outer cover and light-emitting elements disposed inside the outer cover. The light-emitting grille emits light at night by allowing the light of the light-emitting elements to pass through the outer cover.

[0003] However, the light-emitting grille generally does not emit light during the day. On the one hand, when the light-emitting grille is irradiated with external light such as sunlight without emitting light, a part of the light passes through the outer cover and the rest is reflected by the outer cover. On the other hand, in a vehicle, when the engine hood adjacent to the light-emitting grille is irradiated with external light such as sunlight, the engine hood reflects most of the light. Therefore, the appearance of the light-emitting grille is significantly different from that of the engine hood, and thus there is a problem that the appearance of the vehicle deteriorates.

[0004] Such a problem is not limited to the exterior structure of a vehicle, and is generally common also in exterior parts for vehicles having a non-translucent portion that does not allow light to pass through and a translucent portion that is disposed around the non-translucent portion and allows light to pass through. Summary of the Invention

[0005] An exterior part for a vehicle according to one aspect of the present disclosure includes: a light source configured to be able to irradiate visible light; and a cover panel that covers the light source. In the exterior part for a vehicle, the cover panel has: a base material layer having the transmissivity of the visible light; a light-shielding layer and a non-light-shielding layer that are disposed on the front side or the back side of the base material layer and are arranged in a planar direction; and a coloring layer that is disposed on the front side of the light-shielding layer and the non-light-shielding layer. In the exterior part for a vehicle, a region of the cover panel that overlaps with the non-light-shielding layer and is closer to the front side than the non-light-shielding layer constitutes a light-transmitting portion through which the visible light irradiated from the light source passes, and a region of the cover panel that overlaps with the light-shielding layer and is closer to the front side than the light-shielding layer constitutes a non-light-transmitting portion that does not allow the visible light irradiated from the light source to pass through. When the light source is not lit, the color difference ΔE in appearance between the light-transmitting portion and the non-light-transmitting portion is 5 or less.

[0006] An exterior structure of a vehicle according to one aspect of the present disclosure includes a first exterior part and a second exterior part disposed around the first exterior part. The first exterior part is the exterior part for a vehicle, and the second exterior part has a coloring layer having the same structure as the coloring layer of the first exterior part. Brief Description of the Drawings

[0007] Figure 1 is a front view schematic diagram showing the front part of the vehicle according to the first embodiment.

[0008] Figure 2 is a side sectional view schematic diagram of the light-emitting grille.

[0009] Figure 3 is a sectional view schematic diagram showing a part of the cover panel.

[0010] Figure 4 is a sectional view schematic diagram showing another part of the cover panel.

[0011] Figure 5 is Figure 1 a sectional view schematic diagram seen from the 5-5 line direction of

[0012] Figure 6 is a sectional view schematic diagram showing a part of the cover panel according to the second embodiment.

[0013] Figure 7 is a sectional view schematic diagram showing the state when manufacturing the cover panel.

[0014] Figure 8 is a sectional view schematic diagram of the cover panel of the modification example.

[0015] Figure 9 is a sectional view schematic diagram of the cover panel of another modification example.

[0016] Figure 10 is a sectional view schematic diagram of the cover panel of yet another modification example. Detailed implementation manners

[0017] (The first embodiment)

[0018] Hereinafter, the first embodiment will be described with reference to the drawings.

[0019] <Structure of the vehicle 11>

[0020] As Figure 1 shown, a pair of left and right headlamps 12 are provided at the front part of the vehicle 11, a light-emitting grille 13 as an example of a vehicle exterior part, that is, a first exterior part, and a front bumper 14 as an example of a second exterior part. The headlamps 12 are arranged at the upper part of the front part of the vehicle 11. The front bumper 14 is arranged at the lower part of the front part of the vehicle 11.

[0021] The light-emitting grille 13 is arranged adjacent to the upper side of the front bumper 14 at the front part of the vehicle 11. That is, the front bumper 14 is arranged around the light-emitting grille 13. The light-emitting grille 13 is arranged to occupy most of the area above the front bumper 14 at the front part of the vehicle 11 except for the headlamps 12. In addition, the light-emitting grille 13 and the front bumper 14 in this embodiment constitute the exterior structure of the vehicle 11.

[0022] As Figure 1 and Figure 2 shown, at a position behind the central portion of the light-emitting grille 13 at the front of the vehicle 11, a millimeter-wave sensor 15 is disposed. The millimeter-wave sensor 15 transmits millimeter waves, which are electromagnetic waves, toward the front of the vehicle 11 and receives the millimeter waves reflected from an object outside the vehicle, including a vehicle ahead and pedestrians.

[0023] At the millimeter-wave sensor 15, based on the transmitted and received millimeter waves, the above-described object outside the vehicle is recognized, and the distance, relative speed, etc. between the vehicle 11 and the above-described object are detected. Millimeter waves refer to electric waves having a wavelength of 1 mm to 10 mm and a frequency of 30 GHz to 300 GHz. The millimeter-wave sensor 15 has the following characteristics: strong resistance to adverse weather such as rain, fog, and snow, and a longer detectable distance than an infrared sensor.

[0024] <Light-emitting grille 13>

[0025] As Figure 1 and Figure 2 shown, the light-emitting grille 13 has: a bottomed box-shaped housing 16 that forms a front-end opening; and a cover panel 17 that closes the above-described opening of the housing 16. A light source 18 configured to be able to irradiate visible light is provided on the bottom surface within the housing 16, and the light source 18 faces the cover panel 17 in the front-rear direction. Therefore, the cover panel 17 covers the light source 18 from the front side. As an example, the light source 18 of the present embodiment is composed of an LED (Light Emitting Diode) that irradiates white visible light.

[0026] The light source 18 has a decorative lamp 19, a pair of left and right DRLs 20 (Daytime Running Lamps), a pair of left and right turn signals 21 (direction indicators), and a pair of left and right position lamps 22 (outline lamps). The housing 16 is made of a synthetic resin such as polycarbonate (PC) or polypropylene (PP), for example.

[0027] <Cover panel 17>

[0028] As Figure 3 shown, the cover panel 17 is composed of a plurality of layers laminated in the front-rear direction. For each layer constituting the cover panel 17, the surface is the front surface and the back surface is the rear surface.

[0029] The cover panel 17 includes: a base material layer 23, an adhesive layer 24 provided on the front surface of the base material layer 23, a light adjustment layer 25 provided on the front surface of the adhesive layer 24, a first complementary color layer 26 provided on the front surface of the light adjustment layer 25, a coloring layer 27 provided on the front surface of the first complementary color layer 26, a protective layer 28 provided on the front surface of the coloring layer 27, and an anti-fog layer 29 provided on the back surface of the base material layer 23.

[0030] The base material layer 23 is made of a synthetic resin that allows visible light to pass through and has the property of transmitting visible light. That is, the base material layer 23 is made of, for example, polycarbonate (PC), polypropylene (PP), etc. The adhesive layer 24 becomes transparent to allow visible light to pass through. The adhesive layer 24 is made of, for example, a primer, an adhesive, a buffer layer, etc. The light adjustment layer 25 has a light-shielding layer 30 that blocks visible light and a non-light-shielding layer 31 that does not block visible light.

[0031] That is, the light adjustment layer 25 has a structure in which the light-shielding layer 30 and the non-light-shielding layer 31 are arranged and configured in the plane direction. The light-shielding layer 30 is made of a coating film that does not allow visible light to pass through, that is, a black coating film for example. The non-light-shielding layer 31 is composed of the area (space) of the light adjustment layer 25 where the light-shielding layer 30 does not exist. Therefore, since the non-light-shielding layer 31 has no entity, it allows visible light to pass through.

[0032] The first complementary color layer 26 has the function of adjusting the light-emitting state of the visible light emitted from the light source 18 at night, or adjusting the appearance color state of the cover panel 17 during the day when no visible light is irradiated from the light source 18. The coloring layer 27 is made of a coating film that allows visible light to pass through. That is, as an example, the coloring layer 27 has a two-layer structure including a colored transparent layer 32 and a colored pearlescent layer 33 laminated on the rear surface of the colored transparent layer 32.

[0033] The colored transparent layer 32 is made of a coating film having a so-called transparent feeling. The colored pearlescent layer 33 is formed by a coating film containing a pearlescent pigment composed of, for example, mica coated with titanium dioxide or metal oxide. The protective layer 28 has the function of protecting the coloring layer 27 from being damaged. The protective layer 28 is made of, for example, a transparent transparent feeling coating film, a transparent hard coating. The anti-fog layer 29 has the function of suppressing fogging.

[0034] In the cover panel 17, the area that overlaps with the non-light-shielding layer 31 in the front-rear direction and is located in front of the non-light-shielding layer 31 constitutes a light-transmitting portion 34 through which visible light from the light source 18 passes. In the cover panel 17, the area that overlaps with the light-shielding layer 30 in the front-rear direction and is located in front of the light-shielding layer 30 constitutes a non-light-transmitting portion 35 that does not allow visible light from the light source 18 to pass through.

[0035] As Figures 1 to 3 shown, a light-transmitting portion 34 is provided in the area of the cover panel 17 that faces the light source 18 in the front-rear direction. That is, a light-transmitting portion 34 is provided in the area of the cover panel 17 that faces the decorative lamp 19, the left and right pair of DRLs 20, the left and right pair of turn signals 21, and the left and right pair of position lamps 22 in the front-rear direction. In this case, for the light-transmitting portion 34 provided in the area of the cover panel 17 that faces the decorative lamp 19 in the front-rear direction, as an example, it has the shape of the character "TG".

[0036] The transmittance of visible light from the light source 18 in the area of the cover panel 17 that includes the non-light-shielding layer 31 and overlaps with the non-light-shielding layer 31 in the front-rear direction is set in the range of 5% or more and 70% or less. All areas of the cover panel 17 other than the light-transmitting part 34 in appearance become non-light-transmitting parts 35.

[0037] The coloring layer 27 of the cover panel 17 has the same structure at the light-transmitting part 34 and the non-light-transmitting part 35. That is, the same coating material is used for the coloring layer 27 of the cover panel 17 at the light-transmitting part 34 and the non-light-transmitting part 35. The light-emitting grille 13 is configured such that the color difference ΔE in appearance between the light-transmitting part 34 and the non-light-transmitting part 35 in the cover panel 17 is 5 or less when the light source 18 is not lit.

[0038] The cover panel 17 has an electromagnetic wave transmitting part 36 that transmits electromagnetic waves. Compared with the part of the cover panel 17 other than the electromagnetic wave transmitting part 36, the electromagnetic wave transmitting part 36 of the cover panel 17 is more likely to transmit electromagnetic waves. The electromagnetic wave transmitting part 36 of the present embodiment is adjusted at the rear surface (back surface) of the base material layer 23 in such a way that the thickness of the base material layer 23 matches the wavelength of the electromagnetic waves transmitted through the base material layer 23. As the adjustment at the rear surface of the base material layer 23, for example, it can be cited that a concave part that is recessed more than the part other than the electromagnetic wave transmitting part 36 is formed on the rear surface of the base material layer 23.

[0039] The electromagnetic wave transmitting part 36 of the cover panel 17 is arranged in the area facing the millimeter-wave sensor 15 in the front-rear direction. The electromagnetic wave transmitting part 36 of the cover panel 17 preferably has an attenuation rate of 3.0 dB or less during the round-trip of millimeter waves. If the attenuation rate during the round-trip of millimeter waves at the electromagnetic wave transmitting part 36 exceeds 3.0 dB, there may be insufficient detection accuracy of the millimeter-wave sensor 15.

[0040] As Figure 1 、 Figure 2 and Figure 4 shown, a second complementary color layer 37 is arranged between the base material layer 23 and the anti-fog layer 29 in the area of the cover panel 17 that faces the pair of left and right turn signals 21 in the front-rear direction. The second complementary color layer 37 has the function of coloring the visible light emitted from the turn signal 21 (light source 18) into yellow (amber).

[0041] As Figure 1 and Figure 5 shown, the front bumper 14 adjacent to the light-emitting grille 13 has a resin base material 38, a coloring layer 27 provided on the front surface of the resin base material 38, and a protective layer 28 provided on the front surface of the coloring layer 27. In other words, the front bumper 14 has a coloring layer 27 with the same structure as the coloring layer 27 of the cover panel 17 of the light-emitting grille 13.

[0042] <Function of the First Embodiment>

[0043] On the one hand, the decorative lamp 19 is usually lit during night driving of the vehicle 11. In this way, visible light is irradiated from the decorative lamp 19 to the light-transmitting portion 34 representing the character "TG" on the cover panel 17. Therefore, the character "TG" is displayed with white light emission through the visible light passing through the light-transmitting portion 34.

[0044] Similarly, by lighting the pair of left and right DRLs 20 and the pair of left and right position lamps 22, the light-transmitting portions 34 of the cover panel 17 facing them emit white light due to the visible light irradiated from the pair of left and right DRLs 20 and the pair of left and right position lamps 22, respectively.

[0045] Moreover, by selectively lighting the pair of left and right turn signals 21 as needed, the light-transmitting portion 34 of the cover panel 17 facing the selected turn signal 21 emits yellow light due to the visible light irradiated from the selected turn signal 21.

[0046] On the other hand, only the pair of left and right DRLs 20 are lit during the day when the vehicle 11 is usually running. That is, during the day when the vehicle 11 is running, the light sources 18 other than the pair of left and right DRLs 20 are in an unlit state. In this state, the cover panel 17 is configured such that the color difference ΔE in appearance between the light-transmitting portion 34 and the non-light-transmitting portion 35 facing the unlit light source 18 is 5 or less.

[0047] Therefore, the boundary between the light-transmitting portion 34 and the non-light-transmitting portion 35 of the cover panel 17 becomes less obvious. Therefore, the appearance of the cover panel 17 is improved, and further the appearance of the vehicle 11 is improved.

[0048] In addition, the millimeter wave (electromagnetic wave) transmitted and received by the millimeter wave sensor 15 passes through the electromagnetic wave transmission portion 36 of the cover panel 17. In this case, the attenuation rate of the electromagnetic wave transmission portion 36 of the cover panel 17 during the round trip of the millimeter wave is 3.0 dB or less. Therefore, the detection accuracy of the millimeter wave sensor 15 is sufficiently ensured. Therefore, the cover panel 17 preferably functions as an electromagnetic wave transmission cover.

[0049] <Effect of the First Embodiment>

[0050] According to the first embodiment described in detail above, the following effects are achieved.

[0051] (1-1) The light-emitting grille 13 includes: a light source 18 configured to irradiate visible light and a cover panel 17 covering the light source 18. The cover panel 17 has: a base material layer 23 having visible light transmissivity, a light-shielding layer 30 and a non-light-shielding layer 31 arranged side by side in a surface direction on the surface side of the base material layer 23, and a coloring layer 27 arranged on the surface sides of the light-shielding layer 30 and the non-light-shielding layer 31. In the cover panel 17, a region overlapping with the non-light-shielding layer 31 and closer to the surface side than the non-light-shielding layer 31 constitutes a light-transmitting portion 34 through which visible light irradiated from the light source 18 passes. A region overlapping with the light-shielding layer 30 and closer to the surface side than the light-shielding layer 30 in the cover panel 17 constitutes a non-light-transmitting portion 35 that does not allow visible light irradiated from the light source 18 to pass through. When the light source 18 is not lit, the color difference ΔE in appearance between the light-transmitting portion 34 and the non-light-transmitting portion 35 is 5 or less.

[0052] According to the above structure, when the light source 18 is lit, visible light from the light source 18 passes through the light-transmitting portion 34 of the cover panel 17 but does not pass through the non-light-transmitting portion 35 of the cover panel 17. Therefore, only the light-transmitting portion 34 of the cover panel 17 can be made to emit light by the visible light from the light source 18. On the other hand, when the light source 18 is not lit, the color difference ΔE in appearance between the non-light-transmitting portion 35 and the light-transmitting portion 34 of the cover panel 17 is 5 or less. Therefore, the boundary between the non-light-transmitting portion 35 and the light-transmitting portion 34 becomes less obvious. Therefore, the appearance of the cover panel 17 can be improved.

[0053] (1-2) The light-emitting grille 13 uses a light source that irradiates white visible light as the light source 18. In the cover panel 17 of the light-emitting grille 13, the transmittance of visible light in a region including the non-light-shielding layer 31 and overlapping with the non-light-shielding layer 31 is in the range of 5% or more and 70% or less.

[0054] According to the above structure, the light-transmitting portion 34 can emit light appropriately with white visible light.

[0055] (1-3) In the light-emitting grille 13, the coloring layer 27 has the same structure at the light-transmitting portion 34 and the non-light-transmitting portion 35.

[0056] According to the above structure, the cover panel 17 can be manufactured more easily compared to the case where the structure of the coloring layer 27 is different at the light-transmitting portion 34 and the non-light-transmitting portion 35.

[0057] (1-4) In the light-emitting grille 13, the cover panel 17 has an electromagnetic wave transmitting portion 36 that transmits electromagnetic waves.

[0058] According to the above structure, the cover panel 17 can be used as an electromagnetic wave transmitting cover covering the millimeter-wave sensor 15.

[0059] (1-5) The exterior structure of the vehicle 11 includes a light-emitting grille 13 and a front bumper 14 disposed around the light-emitting grille 13. The front bumper 14 has a colored layer 27 with the same structure as the colored layer 27 of the light-emitting grille 13.

[0060] According to the above structure, the light-emitting grille 13 and the front bumper 14 have the same hue in appearance. Therefore, it is possible to give the light-emitting grille 13 and the front bumper 14 an integrated appearance. Therefore, it can contribute to the improvement of the appearance of the vehicle 11.

[0061] (Second Embodiment)

[0062] Next, the second embodiment will be described with reference to the drawings.

[0063] This second embodiment changes the cover panel 17 shown in the above first embodiment Figure 3 to the structure of the cover panel 50 shown in Figure 6 . As shown in Figure 3 and Figure 6 , the cover panel 50 is structured such that each layer of the cover panel 17 of the above first embodiment except the protective layer 28 is disposed on the rear surface side of the base material layer 23. In the second embodiment, only the differences from the above first embodiment will be described, and the description repeated with the first embodiment will be omitted. In addition, in the second embodiment, the same reference numerals are given to the components identical to those in the first embodiment.

[0064] <Cover Panel 50>

[0065] As shown in Figure 6 , the cover panel 50 is configured to include a base material layer 23, a protective layer 28 provided on the front surface of the base material layer 23, an adhesive layer 24 provided on the rear surface of the base material layer 23, a colored layer 27 provided on the rear surface of the adhesive layer 24, a first complementary color layer 26 provided on the rear surface of the colored layer 27, a light adjustment layer 25 provided on the rear surface of the first complementary color layer 26, and an anti-fog layer 29 provided on the rear surface of the light adjustment layer 25.

[0066] <Manufacturing Method of Cover Panel 50>

[0067] As shown in Figure 7 , when manufacturing the cover panel 50, first, the protective layer 28 is provided on the front surface of the base material layer 23. Then, the adhesive layer 24, the colored layer 27, and the first complementary color layer 26 are sequentially laminated on the rear surface of the base material layer 23. Then, a light-shielding layer 30 is provided on the entire rear surface of the first complementary color layer 26. Then, in the region of the light-shielding layer 30 facing the light source 18 in the front-rear direction, a non-light-shielding layer 31 is formed to form a light-transmitting portion 34. Thus, a light adjustment layer 25 having the light-shielding layer 30 and the non-light-shielding layer 31 is provided on the rear surface of the first complementary color layer 26.

[0068] In this case, the non-light-shielding layer 31 is formed, for example, by laser etching in which the light-shielding layer 30 is locally removed by irradiating the light-shielding layer 30 with a laser from the rear side using a laser irradiation device 51. Thereafter, by providing an anti-fogging layer 29 on the rear surface of the light adjustment layer 25, the Figure 6 shown cover panel 50 is manufactured.

[0069] <Effect of the Second Embodiment>

[0070] According to the second embodiment described in detail above, in addition to the effects described in the above (1-1) to the above (1-5), the following effects are also exhibited.

[0071] (2-1) In the cover panel 50, the non-light-shielding layer 31 can be formed by locally removing the light-shielding layer 30 from the rear side by, for example, laser etching. Therefore, the light adjustment layer 25 can be easily formed, and thus the cover panel 50 can be easily manufactured.

[0072] <Modification Example>

[0073] Each of the above embodiments can be modified as follows. In addition, the above embodiments and the following modification examples can be implemented in combination with each other within a range where there is no technical contradiction.

[0074] · As Figure 8 shown, in the cover panel 17, a film substrate 39 having visible light transmissivity may be provided between the protective layer 28 and the colored layer 27. In this case, the protective layer 28, the film substrate 39, the colored layer 27, the first complementary color layer 26, and the light adjustment layer 25 are integrally formed as a lamination unit A. In this way, by bonding the lamination unit A to the substrate layer 23 via the adhesive layer 24, the cover panel 17 can be easily manufactured. In addition, the film substrate 39 is made of, for example, polymethyl methacrylate resin (PMMA), polycarbonate (PC), or the like.

[0075] · As Figure 9 shown, in the cover panel 17, a non-colored portion 40 where the colored layer 27 is not provided may be provided locally in the light-transmitting portion 34. In this case, the portion of the first complementary color layer 26 corresponding to the non-colored portion 40 is omitted. In this way, by providing the non-colored portion 40 at the light-transmitting portion 34 facing the turn signal lamp 21 and the DRL 20 in the cover panel 17, the luminous intensity of the visible light from the turn signal lamp 21 and the DRL 20 passing through the light-transmitting portion 34 can be increased.

[0076] · As Figure 10 shown, in the above Figure 9In the cover panel 17, the non-light-shielding layer 31 is formed by a structure in which a plurality of fine holes are formed in the light-shielding layer 30. That is, the non-light-shielding layer 31 may also be constituted by a solid structure in which a plurality of fine holes penetrating in the front-rear direction are formed at the position where the light-shielding layer 30 exists. In this way, the visible light transmittance can be ensured through the plurality of fine holes of the non-light-shielding layer 31, and it is difficult to see the base material layer 23 from the outside through the non-colored portion 40 of the light-transmitting portion 34 of the cover panel 17 through the portion other than the fine holes of the non-light-shielding layer 31.

[0077] · The front bumper 14 does not necessarily have to have the same colored layer 27 as the colored layer 27 of the light-emitting grille 13.

[0078] · The cover panel 17 does not necessarily have to have the electromagnetic wave transmission portion 36.

[0079] · In the light-emitting grille 13, the colored layer 27 does not necessarily have to have the same structure at the light-transmitting portion 34 and the non-light-transmitting portion 35.

[0080] · The light-emitting grille 13 does not necessarily have to use the above-mentioned light source that irradiates white visible light as the light source 18.

[0081] · In the cover panel 17 of the light-emitting grille 13, the transmittance of visible light in the region including the non-light-shielding layer 31 and overlapping with the non-light-shielding layer 31 must be in the range of 5% or more and 70% or less.

[0082] · Alternatively, the second complementary color layer 37 may be omitted, and the visible light irradiated from the turn signal lamp 21 and transmitted through the light-transmitting portion 34 of the cover panel 17 may be colored yellow (amber) by the turn signal lamp 21 itself to adjust the color of the visible light.

[0083] · The colored layer 27 may also use a metal coating layer containing aluminum flakes, a solid coating layer not containing aluminum flakes and pearlescent pigments instead of the colored pearlescent layer 33, or a coating layer having the same color as the exterior parts such as the bumper cover and fender of the vehicle 11.

[0084] · The colored layer 27 may also be a single-layer structure or a structure of three layers or more.

[0085] · Alternatively, the anti-fog layer 29 may be omitted in the cover panel 17.

[0086] · Alternatively, the adhesive layer 24 may be omitted in the cover panel 17.

[0087] · Alternatively, the first complementary color layer 26 may be omitted in the cover panel 17.

[0088] · Alternatively, the protective layer 28 may be omitted in the cover panel 17.

[0089] ·Alternatively, compared with the portion of the cover panel 17 other than the electromagnetic wave transmission portion 36, the thickness of the colored pearlescent layer 33 that forms the colored layer 27 at the electromagnetic wave transmission portion 36 of the cover panel 17 is reduced. In this case, since the colored pearlescent layer 33 is composed of a coating film containing pearlescent pigments that impede the transmission of electromagnetic waves, the thinner the thickness, the easier it is for electromagnetic waves to pass through.

[0090] ·At the rear side of the light-emitting grille 13, an infrared sensor may be arranged instead of the millimeter-wave sensor 15, or an infrared sensor may be arranged in addition to the millimeter-wave sensor 15. The infrared sensor emits infrared rays (near-infrared rays) having a wavelength of 900 nm or more and 2000 nm or less in the electromagnetic waves toward the front of the vehicle 11, and receives the infrared rays reflected by hitting an object outside the vehicle including a vehicle and a pedestrian in front. At the infrared sensor, based on the transmitted and received infrared rays, the above-mentioned object outside the vehicle is recognized, and the distance, relative speed, etc. between the vehicle 11 and the above-mentioned object are detected. The infrared sensor has characteristics such as being able to detect an object smaller than the object that can be detected by the millimeter-wave sensor 15.

[0091] ·The vehicle exterior part (the first exterior part) may also be a vehicle exterior part other than the light-emitting grille 13.

[0092] ·The second exterior part may also be, for example, a fender of the vehicle 11.

Claims

1. An exterior part for a vehicle, comprising: a light source configured to emit visible light; and a cover panel covering the light source, The exterior part for a vehicle is characterized in that, The cover panel has: A base material layer having the transmissivity of the visible light; A light-shielding layer and a non-light-shielding layer arranged on the front side or the back side of the base material layer and arranged side by side in the plane direction; and A coloring layer arranged on the front side of the light-shielding layer and the non-light-shielding layer, In the cover panel, the region overlapping with the non-light-shielding layer and closer to the front side than the non-light-shielding layer constitutes a light-transmitting portion through which the visible light emitted from the light source passes, In the cover panel, the region overlapping with the light-shielding layer and closer to the front side than the light-shielding layer constitutes a non-light-transmitting portion that does not allow the visible light emitted from the light source to pass through, When the light source is not lit, the color difference ΔE in appearance between the light-transmitting portion and the non-light-transmitting portion is 5 or less.

2. The exterior part for a vehicle according to claim 1, characterized in that, A light source that emits white visible light is used as the light source, The transmissivity of the visible light in the region of the cover panel that includes the non-light-shielding layer and overlaps with the non-light-shielding layer is in the range of 5% or more and 70% or less.

3. The exterior part for a vehicle according to claim 1 or 2, characterized in that, The coloring layer has the same structure in the light-transmitting portion and the non-light-transmitting portion.

4. The exterior part for a vehicle according to claim 1 or 2, characterized in that, A non-coloring portion where the coloring layer does not exist is provided locally in the light-transmitting portion.

5. The exterior part for a vehicle according to claim 4, characterized in that, The non-light-shielding layer has a structure in which a plurality of fine holes are formed on the light-shielding layer.

6. The exterior part for a vehicle according to claim 1 or 2, characterized in that, The cover panel has an electromagnetic wave transmitting portion that allows electromagnetic waves to pass through.

7. An exterior structure of a vehicle, characterized in that, It includes a first exterior part and a second exterior part arranged around the first exterior part, The first exterior part is the exterior part for a vehicle according to any one of claims 1 to 6, The second exterior part has a coloring layer having the same structure as the coloring layer of the first exterior part.

Citation Information

Patent Citations

  • Movable-body-mount display device

    JP2022035593A