Thick-wall part capable of uniformly emitting light and vehicle lamp

Abstract

The utility model discloses a thick-wall part capable of uniformly emitting light and a vehicle lamp, and aims to solve the technical problem of uniform light emitting in the prior art. The whole thick-wall piece is in a C-shaped arc shape and comprises a left thick-wall section, a middle thick-wall section and a right thick-wall section, the left thick-wall section is provided with a left light-in face, a left first reflecting face, a left second reflecting face and a left light-out face, and the middle thick-wall section is provided with a middle light-in face, a middle first reflecting face, a middle second reflecting face and a middle light-out face. The right thick-wall section is provided with a right incident surface, a right first reflecting surface, a right second reflecting surface and a right emergent surface, and the left first reflecting surface, the right first reflecting surface and the middle first reflecting surface are cambered surfaces protruding outwards; the left second reflecting surface, the right second reflecting surface and the middle second reflecting surface are all inclined surfaces or curved surfaces, the slope of the middle second reflecting surface is smaller than the slope or curvature of the left second reflecting surface and the right second reflecting surface, overall uniform light emitting can be achieved from the visual effect, and dark areas are prevented from appearing to affect attractiveness.

Description

Technical Field

[0001] This application relates to the field of automotive lighting components and automotive lighting, and more particularly to a thick-walled component and automotive lighting with uniform light emission. Background Technology

[0002] Currently, vehicle signal lights mainly include daytime running lights, front position lights, front turn signals, front fog lights, brake lights, rear position lights, rear turn signals, high-mounted brake lights, rear fog lights, and reversing lights. Their primary function is not illumination, but rather improving vehicle visibility, allowing others or other vehicles to see our presence in advance, thus serving as a safety reminder. Both domestic and joint-venture brands are widely using LED signal lights, making it a highly representative design trend. There are increasingly higher requirements for the shape of the signal lights and the uniformity of light emission after illumination, as this reflects the high-end design philosophy of the vehicle brand and caters to consumers' demand for aesthetically pleasing vehicles.

[0003] Chinese utility model patent CN201821862408.X discloses a thick-walled light guide and a vehicle lamp. The thick-walled light guide includes: a light guide body, the base of which is divided into multiple independent spatial curved quadrilaterals, and a stepped mounting platform is provided on its back; multiple light guiding structures, respectively disposed on the mounting platform, for guiding the divergent light from the light source into parallel light; and multiple heat-sealing structures disposed on both sides of the light guiding structures for connecting the light source. An LED light source is mounted on the circuit board. The light emitted by the light source is guided by the light guiding structure to guide the divergent light into parallel light, which is then diffused out through the base surface of the light guide body.

[0004] Chinese patent CN202420446902.7 discloses a lightweight and uniformly emitting thick-walled light guide, which includes: a concentrator and a light emitting part corresponding to a light source. The light emitting part has a first optical pattern for diffusing the light passing through it. A light diffusion groove is also provided between the concentrator and the light emitting part to enhance the light diffusion effect and make the light emission more uniform. At least one inner wall of the light diffusion groove is provided with a second optical pattern for diffusing the light passing through it, so that the light emitted by the light source is diffused twice by passing through the second optical pattern and the first optical pattern in sequence.

[0005] The shapes of the thick-walled lights described above are relatively regular, with the light-emitting surfaces at roughly the same height and the light-emitting direction on a horizontal plane. Therefore, ensuring uniform light emission only requires considering that the light emission amount from each surface is roughly the same. However, with increasingly higher aesthetic requirements, many car headlights are designed as long, curved strips, and different positions within the headlight may be at different heights. For curved light-emitting surfaces where the light-emitting surfaces are not at the same height, it is necessary to consider the light emission amount in the same direction at different heights to ensure uniform light emission and avoid dark areas that affect aesthetics. Utility Model Content

[0006] This application provides a thick-walled component and vehicle lamp with uniform light output to solve the technical problem of uniform light output in the prior art.

[0007] According to this application, a thick-walled component with uniform light emission is provided. The thick-walled component is generally in the shape of a C-shaped arc, including a left thick-walled section, a middle thick-walled section and a right thick-walled section. The left thick-walled section is provided with a left light-incident surface, a left first reflective surface, a left second reflective surface and a left light-emitting surface. The middle thick-walled section is provided with a middle light-incident surface, a middle first reflective surface, a middle second reflective surface and a middle light-emitting surface. The right thick-walled section is provided with a right light-incident surface, a right first reflective surface, a right second reflective surface and a right light-emitting surface. The left first reflective surface, the right first reflective surface and the middle first reflective surface are all outwardly convex arc surfaces.

[0008] The left, right, and middle second reflecting surfaces are all inclined planes, with the slope of the middle second reflecting surface being less than that of the left and right second reflecting surfaces; or

[0009] The left, right, and middle second reflecting surfaces are all inwardly convex curved surfaces, with the curvature of the middle second reflecting surface being less than that of the left and right second reflecting surfaces.

[0010] Compared with the prior art, the thick-walled part with uniform light emission of this application has the following beneficial effects:

[0011] When installing and using thick-walled components, the height of the left and right thick-walled sections is greater than that of the middle thick-walled section. The LEDs at each position can be arranged in a C-shaped arc above the left, right, and middle light-incident surfaces. The greater the curvature or slope of the left and right thick-walled sections, the more light is diffused. The left and right thick-walled sections can refract or reflect more light in the same direction as the middle thick-walled section. From a visual perspective, this can achieve uniform light output and avoid dark areas that affect aesthetics.

[0012] In one embodiment, the curvatures of the left second reflecting surface, the right second reflecting surface, and the middle second reflecting surface are different at different positions, with the curvature gradually decreasing from the left second reflecting surface to the middle second reflecting surface and gradually increasing from the middle second reflecting surface to the right second reflecting surface.

[0013] In one embodiment, the slopes of the left second reflecting surface, the right second reflecting surface, and the middle second reflecting surface are different at different positions, with the slope gradually decreasing from the left second reflecting surface to the middle second reflecting surface and gradually increasing from the middle second reflecting surface to the right second reflecting surface.

[0014] In one embodiment, the left thick-walled section is provided with a left third reflective surface, and the slope of the left third reflective surface is the same as the slope of the left second reflective surface on the cross section along the irradiation direction of the corresponding light source center. The right thick-walled section is provided with a right third reflective surface, and the slope of the right third reflective surface is the same as the slope of the right second reflective surface on the cross section along the irradiation direction of the corresponding light source center. The middle thick-walled section is provided with a middle third reflective surface, and the slope of the middle third reflective surface is the same as the slope of the middle second reflective surface on the cross section along the irradiation direction of the corresponding light source center.

[0015] In one embodiment, the slope of the left third reflecting surface is smaller as it gets closer to the middle third reflecting surface, and the slope of the right third reflecting surface is smaller as it gets closer to the middle third reflecting surface.

[0016] In one possible implementation, the width of the medium-thick wall section is greater than the widths of the left thick wall section and the right thick wall section.

[0017] In one embodiment, the width of the middle second reflective surface is greater than the widths of the left second reflective surface and the right second reflective surface.

[0018] In one embodiment, the central light-emitting surface includes an upper central light-emitting surface, a lower central light-emitting surface, and a central light-emitting surface. The upper central light-emitting surface is located at the upper end of the central light-emitting surface, and the lower central light-emitting surface is located at the lower end of the central light-emitting surface. The left and right light-emitting surfaces adopt the same design as the central light-emitting surface. That is, the left light-emitting surface includes an upper left light-emitting surface, a lower left light-emitting surface, and a left central light-emitting surface. The upper left light-emitting surface is located at the upper end of the left central light-emitting surface, and the lower left light-emitting surface is located at the lower end of the left central light-emitting surface. The right light-emitting surface includes an upper right light-emitting surface, a lower right light-emitting surface, and a right central light-emitting surface. The upper right light-emitting surface is located at the upper end of the right central light-emitting surface, and the lower right light-emitting surface is located at the lower end of the right central light-emitting surface. This design results in a better visual effect for the headlights.

[0019] In one embodiment, the thick-walled component is installed on the vehicle at a certain angle. This makes the vehicle more aesthetically pleasing.

[0020] A type of vehicle headlight features a thick-walled component that emits light evenly. This design results in more uniform light distribution and better nighttime performance.

[0021] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0022] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of this application are illustrated in the drawings by way of example and not limitation, in which:

[0023] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0024] Figure 1 This is a front view schematic diagram of the assembly of a thick-walled component with uniform light emission and a circuit board according to Embodiment 1 of this application;

[0025] Figure 2 It shows Figure 1 Schematic diagram of the cross section at point AA;

[0026] Figure 3 A top view schematic diagram of the assembly of a thick-walled component with uniform light emission and a circuit board according to Embodiment 1 of this application is shown.

[0027] Figure 4 It shows Figure 3 Schematic diagram of the cross section at point BB;

[0028] Figure 5 A schematic diagram of a thick-walled component with uniform light emission according to Embodiment 1 of this application is shown;

[0029] Figure 6 This shows a schematic diagram of the light reflection path of a thick-walled component that emits light uniformly according to Embodiment 1 of this application;

[0030] Figure 7 This paper shows a schematic diagram of the assembly of a thick-walled component with uniform light emission and a circuit board according to Embodiment 2 of this application.

[0031] Figure 8 A top view schematic diagram of the assembly of a thick-walled component with uniform light emission and a circuit board according to Embodiment 2 of this application is shown.

[0032] Figure 9 It shows Figure 8 Schematic diagram of the cross section at point CC;

[0033] Figure 10 A schematic diagram of a thick-walled component with uniform light emission according to Embodiment 2 of this application is shown;

[0034] Figure 11 This shows a schematic diagram of the light reflection path of a thick-walled component that emits light uniformly according to Embodiment 2 of this application;

[0035] Figure 12 This diagram illustrates the effect of uniform light emission from a vehicle headlight according to an embodiment of this application. Detailed Implementation

[0036] To make the objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] Example 1:

[0038] like Figure 1-6 As shown, a thick-walled component with uniform light emission has a C-shaped arc body 1, resembling a crescent moon structure. This design is more aesthetically pleasing when used in the taillights of electric bicycles. The thick-walled component body 1 includes a left thick-walled section 4, a middle thick-walled section 5, and a right thick-walled section 6. The middle thick-walled section 5 is lower than the left and right thick-walled sections 4 and 6, with a large amount of light emanating from it towards the rear. The left thick-walled section 4 is provided with a left light-incident surface 41, a left first reflective surface 42, a left second reflective surface 43, and a left light-emitting surface 44. The middle thick-walled section 5 is provided with a middle light-incident surface 51, a middle... The right thick-walled section 6 is provided with a right light-incident surface 61, a right first reflective surface 62, a right second reflective surface 63, and a right light-out surface 64. The left first reflective surface 42, the right first reflective surface 62, and the middle first reflective surface 52 are all outwardly convex arc surfaces. The left second reflective surface 43, the right second reflective surface 63, and the middle second reflective surface 53 are all inwardly convex curved surfaces. The curvature of the middle second reflective surface 53 is less than that of the left second reflective surface 43 and the right second reflective surface 63.

[0039] The light source 3 is set on the circuit board 2. When the circuit board 2 is installed on the thick-walled body 1, the light source 3 faces the light-incident surface. Multiple light sources 3 are set in different positions, respectively corresponding to the left light-incident surface 41, the middle light-incident surface 51 and the right light-incident surface 61.

[0040] In one embodiment, the curvatures of the left second reflecting surface 43, the right second reflecting surface 63, and the middle second reflecting surface 53 are different at different positions; the curvature gradually decreases from the left second reflecting surface 43 to the middle second reflecting surface 53, and gradually increases from the middle second reflecting surface 53 to the right second reflecting surface 63. (Comparison) Figure 2 and Figure 4 A noticeable change in curvature can be observed.

[0041] like Figure 3 As shown, in one possible embodiment, the width of the medium-thick wall section 5 is greater than the widths of the left thick wall section 4 and the right thick wall section 6.

[0042] like Figure 3 As shown, in one possible embodiment, the width of the middle second reflective surface 53 is greater than the widths of the left second reflective surface 43 and the right second reflective surface 63.

[0043] like Figure 2As shown, in one possible embodiment, the center light-emitting surface 54 includes an upper center light-emitting surface 56, a lower center light-emitting surface 58, and a center light-emitting surface 57. The upper center light-emitting surface 56 is located at the upper end of the center light-emitting surface 57 and forms an obtuse angle with the center light-emitting surface 57. The lower center light-emitting surface 58 is located at the lower end of the center light-emitting surface 57 and forms an obtuse angle with the center light-emitting surface 57. The left light-emitting surface 44 and the right light-emitting surface 64 adopt the same design as the center light-emitting surface 54.

[0044] In one possible implementation, the thick-walled member is installed on the vehicle at a certain angle. Figure 2 The tilt angle of the thick-walled component body 1 can be seen from... Figure 1 The tilting effect can be seen in the image.

[0045] like Figure 6 As shown, the dashed line represents the outline of the cross-section of the thick-walled component body 1. The light from the light source 3 enters the interior of the thick-walled component body 1 from the light-incident surface 51, is reflected by the first reflective surface 52, reaches the second reflective surface 53, and is reflected again to reach the light-exiting surface 54. The greater the curvature of the second reflective surface 53, the higher the degree of scattering, and the brighter it will be when viewed from a non-frontal angle.

[0046] like Figure 12 As shown, a vehicle headlight with uniform light emission includes the aforementioned thick-walled member for uniform light emission, which provides a uniform light emission effect when viewed from directly behind the headlight. The implementation of this application primarily aims to balance the light emitted from the rear. Therefore, the left thick-walled section 4 and the right thick-walled section 6 scatter as much light as possible backward, making them brighter when viewed from the rear. The middle thick-walled section 5 can also scatter some light in other directions, reducing the amount of light emitted from it. In other words, extending the light path at each position makes the light more uniform, rather than having one direction brighter and another darker.

[0047] Example 2:

[0048] like Figure 7-11 As shown, a thick-walled component with uniform light emission is formed in the shape of a C-shape, including a left thick-walled section 4, a middle thick-walled section 5, and a right thick-walled section 6. The left thick-walled section 4 is provided with a left light-incident surface 41, a left first reflective surface 42, a left second reflective surface 43, and a left light-emitting surface 44. The middle thick-walled section 5 is provided with a middle light-incident surface 51, a middle first reflective surface 52, a middle second reflective surface 53, and a middle light-emitting surface 54. The right thick-walled section 6 is provided with a right light-incident surface 61, a right first reflective surface 62, a right second reflective surface 63, and a right light-emitting surface 64. The left first reflective surface 42, the right first reflective surface 62, and the middle first reflective surface 52 are all outwardly convex arc surfaces. The left second reflective surface 43, the right second reflective surface 63, and the middle second reflective surface 53 are all inclined surfaces, and the slope of the middle second reflective surface 53 is less than the slope of the left second reflective surface 43 and the right second reflective surface 63.

[0049] In one embodiment, the slopes of the left second reflecting surface 43, the right second reflecting surface 63, and the middle second reflecting surface 53 are different at different positions. The slope gradually decreases from the left second reflecting surface 43 to the middle second reflecting surface 53, and gradually increases from the middle second reflecting surface 53 to the right second reflecting surface 63.

[0050] In one embodiment, the left thick-walled section 4 is provided with a left third reflective surface 45, and the slope of the left third reflective surface 45 is the same as the slope of the left second reflective surface 43 on the cross section along the central illumination direction of the corresponding light source 3. The right thick-walled section 6 is provided with a right third reflective surface 65, and the slope of the right third reflective surface 65 is the same as the slope of the right second reflective surface 63 on the cross section along the central illumination direction of the corresponding light source 3. The middle thick-walled section 5 is provided with a middle third reflective surface 55, and the slope of the middle third reflective surface 55 is the same as the slope of the middle second reflective surface 53 on the cross section along the central illumination direction of the corresponding light source 3.

[0051] In one embodiment, the slope of the left third reflective surface 45 is smaller as it gets closer to the middle third reflective surface 55, and the slope of the right third reflective surface 65 is smaller as it gets closer to the middle third reflective surface 55.

[0052] like Figure 11 As shown, the dashed line represents the outline of the cross-section of the thick-walled component body 1. The light from the light source 3 enters the interior of the thick-walled component body 1 from the light-incident surface 51, is reflected by the first reflective surface 52, reaches the second reflective surface 53, is reflected again, reaches the third reflective surface, and then is reflected again to reach the light-exiting surface 54.

[0053] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A thick-walled component with uniform light emission, wherein the thick-walled component is integrally C-shaped, characterized in that: It includes a left thick-walled section (4), a middle thick-walled section (5) and a right thick-walled section (6). The left thick-walled section (4) is provided with a left light-incident surface (41), a left first reflective surface (42), a left second reflective surface (43) and a left light-out surface (44). The middle thick-walled section (5) is provided with a middle light-incident surface (51), a middle first reflective surface (52), a middle second reflective surface (53) and a middle light-out surface (54). The right thick-walled section (6) is provided with a right light-incident surface (61), a right first reflective surface (62), a right second reflective surface (63) and a right light-out surface (64). The left first reflective surface (42), the right first reflective surface (62) and the middle first reflective surface (52) are all outwardly convex arc surfaces. The left second reflecting surface (43), the right second reflecting surface (63), and the middle second reflecting surface (53) are all inclined surfaces, and the slope of the middle second reflecting surface (53) is less than the slopes of the left second reflecting surface (43) and the right second reflecting surface (63); or The left second reflective surface (43), the right second reflective surface (63) and the middle second reflective surface (53) are all inwardly convex curved surfaces, and the curvature of the middle second reflective surface (53) is less than that of the left second reflective surface (43) and the right second reflective surface (63).

2. The thick-walled component with uniform light emission according to claim 1, characterized in that: The curvatures of the left second reflective surface (43), the right second reflective surface (63) and the middle second reflective surface (53) are different at different positions. The curvature gradually decreases from the left second reflective surface (43) to the middle second reflective surface (53), and gradually increases from the middle second reflective surface (53) to the right second reflective surface (63).

3. The thick-walled component with uniform light emission according to claim 1, characterized in that: The slopes of the left second reflective surface (43), the right second reflective surface (63) and the middle second reflective surface (53) are different at different positions. The slope gradually decreases from the left second reflective surface (43) to the middle second reflective surface (53), and gradually increases from the middle second reflective surface (53) to the right second reflective surface (63).

4. The thick-walled component with uniform light emission according to claim 3, characterized in that: The left thick-walled section (4) is provided with a left third reflective surface (45). The slope of the left third reflective surface (45) on the cross section along the central illumination direction of the corresponding light source (3) is the same as the slope of the left second reflective surface (43). The right thick-walled section (6) is provided with a right third reflective surface (65). The slope of the right third reflective surface (65) on the cross section along the central illumination direction of the corresponding light source (3) is the same as the slope of the right second reflective surface (63). The middle thick-walled section (5) is provided with a middle third reflective surface (55). The slope of the middle third reflective surface (55) on the cross section along the central illumination direction of the corresponding light source (3) is the same as the slope of the middle second reflective surface (53).

5. The thick-walled component with uniform light emission according to claim 4, characterized in that: The slope of the left third reflective surface (45) is smaller as it gets closer to the middle third reflective surface (55), and the slope of the right third reflective surface (65) is smaller as it gets closer to the middle third reflective surface (55).

6. The thick-walled component with uniform light emission according to claim 1 or 2, characterized in that: The width of the medium-thick wall section (5) is greater than the width of the left thick wall section (4) and the right thick wall section (6).

7. The thick-walled component with uniform light emission according to claim 6, characterized in that: The width of the middle second reflective surface (53) is greater than the width of the left second reflective surface (43) and the right second reflective surface (63).

8. The thick-walled component with uniform light emission according to claim 7, characterized in that: The light-emitting surface (54) includes an upper light-emitting surface (56), a lower light-emitting surface (58), and a center light-emitting surface (57). The upper light-emitting surface (56) is located at the upper end of the center light-emitting surface (57), and the lower light-emitting surface (58) is located at the lower end of the center light-emitting surface (57).

9. The thick-walled component with uniform light emission according to claim 1, characterized in that: The thick-walled component is installed on the vehicle at a certain angle.

10. A vehicle light, characterized in that: The vehicle headlight is provided with a thick-walled member that emits uniform light as described in any one of claims 1-9.

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