Vehicle lamp and vehicle
By designing the first light shielding part in the headlight distribution mirror on the side where the connection part is far away from the accommodating space, the problem of cracking of the light distribution mirror in a high-temperature environment is solved, and the appearance effect and perceived quality of the headlight are improved.
Patent Information
- Application Number
- CN202411800178.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-03-14
AI Technical Summary
The existing headlight light distribution mirrors crack at the overlapping point due to the difference in shrinkage stress of the black and white glass molecular chains under high temperature environments, which affects the aesthetics.
A car light distribution mirror is designed, which includes a first light transmitting part and a first light shielding part. The first light shielding part is arranged on the side of the connection part away from the accommodating space, so as to block cracks when shrinkage occurs when heat is absorbed, and improve the appearance effect.
It effectively avoids cracking caused by the difference in shrinkage stress in high temperature environments, and improves the appearance effect and dynamic and static perception quality of the lights.
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Figure CN119617327A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle lamp and a vehicle. Background Art
[0002] At present, the headlight mirrors of most models are formed by a two-color injection molding process. This process uses a light-transmitting resin to mold the front cover (white glass) of the headlight mirror, and a non-light-transmitting resin to mold the inner layer (black glass) that blocks the light path. The inner layer is hollowed out and the light-transmitting shape forms the light-transmitting area. In the design of the headlight mirror, the two-color structure of the mirror is to add a layer of black glass with a hollow light-transmitting shape to the inside of the white glass. This design has the following defects: In the hot summer environment, the molecular chains of the black and white glass gain energy from the heat and shrink again. The black glass absorbs more heat than the white glass. When the shrinkage stress difference between the black and white glass is greater than the intermolecular force between the black and white glass, cracks can be seen at the overlap of the double layers of the black and white glass from a macroscopic perspective, affecting the appearance. Summary of the invention
[0003] The present application provides a headlight and a vehicle, which improve the appearance of the headlight.
[0004] In order to achieve the above objectives, the main technical solutions adopted in this application include:
[0005] In a first aspect, an embodiment of the present application provides a vehicle lamp, comprising a bottom shell, a light distribution mirror and a decorative ring, wherein the light distribution mirror is connected to the bottom shell to form a storage space for accommodating a light source; the decorative ring is arranged between the light distribution mirror and the bottom shell; wherein the light distribution mirror comprises a first light-transmitting portion and a first light-shielding portion, wherein the first light-transmitting portion comprises a main body portion and a connecting portion connected to each other, wherein the connecting portion is arranged around the outer edge of the main body portion, the connecting portion has a first side surface away from the storage space, and the first light-shielding portion is arranged on the first side surface.
[0006] In the vehicle lamp proposed in the embodiment of the present application, the first light-transmitting part includes a main body and a connecting part, the connecting part is arranged at the outer edge of the main body, and the first light-shielding part is arranged on the first side surface of the connecting part away from the accommodating space. The first light-shielding part is arranged on the outer side of the connecting part, and when the first light-shielding part and the first light-transmitting part absorb heat and shrink, even if cracks occur at the overlap of the first light-shielding part and the first light-transmitting part, since the first light-shielding part is not light-transmitting, the first light-shielding part can shield the cracks between the first light-shielding part and the first light-transmitting part, thereby improving the appearance of the vehicle lamp.
[0007] Optionally, the first side surface is provided with a dot-casting portion. When the first light-transmitting portion is injection-molded, the injection dot-casting portion is provided on the first side surface, and the first light-shielding portion is connected to the first side surface of the connecting portion, so as to shield the dot-casting portion, improve the perceived quality of the appearance, and at the same time improve the perceived quality of the vehicle lamp in both dynamic and static states.
[0008] Optionally, the connecting portion includes a first section and a second section connected to each other, the first section is connected to the main body portion, and the second section protrudes toward the center of the accommodating space compared to the main body portion, so that the second section and the first section are defined as a first recessed portion, and at least a portion of the first shading portion is arranged in the first recessed portion.
[0009] The first light shielding portion is at least partially disposed in the first recessed portion, so as to reduce the size of the first light shielding portion protruding from the main body portion and improve the appearance of the vehicle lamp.
[0010] Optionally, the side of the first light shielding portion away from the accommodating space is coplanar with the side of the main body away from the accommodating space. The first light shielding portion and the main body are flush on the side away from the accommodating space, thereby improving the appearance of the vehicle lamp.
[0011] Optionally, the first light-transmitting portion further includes a welding portion, which is disposed at an outer edge of the second section, the welding portion and the second section are both plate-like structures, the welding portion is connected to the second section at an angle, and the welding portion extends toward the bottom shell and is welded and fixed to the bottom shell.
[0012] Optionally, the first shading portion has a first inner end close to the main body and a first outer end away from the main body, and in a direction from the first inner end to the first outer end, the first outer end protrudes from an end of the second segment away from the main body.
[0013] During the injection molding process of the first light-transmitting portion, the first light-shielding portion serves as a mold parting surface for molding the first light-transmitting portion. From the first inner end to the first outer end, the first outer end protrudes from an end of the second section away from the main body portion, thereby reducing the probability of glue overflow during the injection molding process of the first light-shielding portion.
[0014] Optionally, the light distribution mirror also includes a second light shading portion, which is connected to the first outer end, the first light shading portion and the second light shading portion are both constructed as a plate-like structure, the second light shading portion is connected to the first light shading portion at an angle, and the second light shading portion extends toward the bottom shell and is arranged around the periphery of the welding portion.
[0015] The second light shielding portion is connected to the first outer end at an angle, and the second light shielding portion extends toward the bottom shell and surrounds the outer periphery of the welding portion to shield the welding portion and reduce light leakage from the welding portion.
[0016] Optionally, along the direction in which the second light shielding portion extends toward the bottom shell, the size of the second light shielding portion is c, satisfying: c≥2mm. The second light shielding portion is used to shield the welding portion to reduce light leakage from the welding portion.
[0017] Optionally, in the direction from the first inner end to the first outer end, the dimension of the first outer end protruding from the end of the second section away from the main body is b, and b≥c is satisfied. This reduces the glue overflow phenomenon during the injection molding process and reduces the probability of the second light shielding portion being broken due to the second light shielding portion being an elongated structure.
[0018] Optionally, the second section has a second inner end close to the main body and a second outer end away from the main body, and a dimension of the second section from the second inner end to the second outer end is a, satisfying: a≥7 mm.
[0019] When the dimension a of the second section satisfies a≥7mm, during the injection molding process of the first light-transmitting part, the distance between the hot runner nozzle cap and the first section of the first light-transmitting part is greater than the safety distance required for quenching mold steel, thereby reducing the probability of mold cracking.
[0020] Optionally, the decorative ring includes a second light-transmitting portion and a plurality of third light-shielding portions, the second light-transmitting portion has a second side surface away from the accommodating space, the second side surface is provided with a plurality of second recessed portions, the plurality of second recessed portions are arranged at intervals, each of the third light-shielding portions includes a third segment and a fourth segment connected to each other, the third segment is accommodated in the corresponding second recessed portion, and along the overlapping direction of the third light-shielding portion and the second light-transmitting portion, the fourth segment protrudes from the second side surface, and a portion of the fourth segment overlaps with the second side surface.
[0021] A fourth section is protruded and connected to the third side surface, and a portion of the fourth end is overlapped on the third side surface, thereby reducing the problem of dissatisfaction in injection molding during the molding process of the third shading portion, reducing the probability of the third shading portion easily forming uneven sharp corners, and improving the flatness of the connection boundary between the third shading portion and the second light-transmitting portion, thereby improving the dynamic and static perception quality of the vehicle light.
[0022] Optionally, the minimum distance between two adjacent third shading parts is f, satisfying: f≥3 mm. The minimum distance between two adjacent third shading parts is increased to reduce the formation of thin steel of the mold, thereby improving the strength of the mold and further improving the injection molding stability.
[0023] Optionally, the minimum width of the overlapping area between the fourth section and the second side surface is m, satisfying: 0.2mm<m≤3mm. By controlling the minimum width of the overlapping area between the fourth section and the second side surface, the flatness and continuity of the connection interface between the second light shielding portion and the second side surface are improved.
[0024] Optionally, along the overlapping direction of the third light shielding portion and the second light transmitting portion, the dimension of the fourth section protruding from the second side surface is n, satisfying: 0.5 mm ≤ n ≤ 3 mm. The dimension of the fourth section protruding from the second side surface is increased to reduce the probability of molding defects in the fourth section of the third light shielding portion.
[0025] In a second aspect, the present application also provides a vehicle, comprising the headlight described in any of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0027] Figure 1 This is a schematic diagram of the structure of the vehicle lamp of this application;
[0028] Figure 2 This is a schematic diagram of the structure of the light distribution mirror of this application;
[0029] Figure 3 for Figure 2 Cross-section view in the AA direction;
[0030] Figure 4 This is a schematic diagram of the structure of the decorative ring in this application;
[0031] Figure 5 for Figure 4 Cross-sectional view along the BB direction.
[0032] [Description of Reference Numerals]
[0033] 1: bottom shell;
[0034] 2: light distribution mirror; 21: first light-transmitting portion; 211: main body; 212: connecting portion; 2121: first side surface; 2122: first section; 2123: second section; 2124: second inner end; 2125: second outer end; 213: welding portion; 22: first light-shielding portion; 221: first inner end; 222: first outer end; 23: second light-shielding portion;
[0035] 3: Decorative ring; 31: Second light-transmitting portion; 311: Second side surface; 312: Second recessed portion; 32: Third light-shielding portion; 321: Third section; 322: Fourth section. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0037] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.
[0038] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.
[0039] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0040] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.
[0041] The term "multiple" as used in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple sheets" refers to more than two sheets (including two sheets).
[0042] At present, the headlight mirrors of most models on the market are formed by a two-color injection molding process. This process uses a translucent resin to mold the front cover (white glass) of the headlight mirror, and a non-translucent resin to mold the inner layer (black glass) that blocks the light path. The hollow translucent shape of the inner layer forms a translucent area. In the conventional design of the existing headlight mirror, the two-color structure of the mirror is to add a layer of black glass with a hollow translucent shape to the inside of the white glass. Among them, there are visible point gate marks on the surface of the mirror, which affects the perceived quality of the appearance. In the hot summer environment, the molecular chains of black and white glass gain energy and shrink again due to heat. Black glass absorbs more heat than white glass. When the shrinkage stress difference between black glass and white glass is greater than the intermolecular force between black glass and white glass, cracks can be seen at the overlap of the double layers of black and white glass from a macroscopic perspective. Therefore, it is necessary to improve the headlight mirror.
[0043] In addition, with the development of automotive lighting systems, automotive lights have gradually evolved from their original lighting functions to important carriers for decoration, brand feature implantation, and display of technical strength and design skills of OEMs. The parametric lighting function is one of the trends in conforming to the design of automotive lights. Usually, post-processing processes such as hot stamping and laser engraving are used in the light-transmitting area of the inner light-matching decorative ring to achieve the parametric pattern lighting effect. The parametric symbol design of the hot stamping process is unlimited, the boundaries are clear and continuous, and there is no need to consider issues such as mold feasibility and injection molding filling pressure, but it will be limited by the hot stamping modeling surface; the process requires the investment of expensive special equipment, tooling and production lines. The parametric symbol design of the laser engraving process is unlimited, the boundaries are clear and continuous, and there is no need to consider issues such as mold feasibility and injection molding filling pressure; the process requires the investment of expensive special equipment, tooling and production lines, the production time is long, and the product qualification rate is low.
[0044] As the parametric symbol lighting design is more and more widely used in car lights, laser engraving and hot stamping processes can no longer adapt to the increasingly competitive market. Therefore, a low-cost two-color molding process that can achieve parametric lighting has emerged. This process is composed of injection molding of a non-translucent resin to block the light path of the decorative ring substrate (two-color molding), and injection molding of the light-emitting area of the inner light-matching decorative ring with a translucent resin (one-color molding). The parametric light-transmitting area is formed by filling the hollow parametric shape of the decorative ring substrate with the translucent resin. The parametric modeling surface (two-color molding) of the conventional two-color structure design is designed as the same surface as the decorative ring substrate. The one-color cavity of the molding parametric feature is a groove. The groove is formed by CNC machining or mirror EDM to form a 0.1mm-0.3mm fillet at the root of the groove, resulting in the molding of the parametric feature circumference with a fillet. When the two-color molding is injected, the parametric feature circumference is a sharp corner and is difficult to fill. When a two-color mold is used to inject a two-color molded part, the surface of the one-color molded part is used as the sealing surface. To avoid overflowing glue when injecting the two-color molded part, the two-color cavity increases the pre-compression amount by 0.01mm-0.02mm according to the shrinkage rate of the mold design to compact the surface of the one-color molded part. Due to the different shrinkage degrees in different areas of the one-color molded part and the errors in the processing accuracy, after compacting the surface of the one-color molded part, the different sharp angles of the parametric feature circle make the black non-light-transmitting resin fill the sharp corners differently, which causes the unevenness of the parametric feature boundary. Therefore, it is necessary to improve the decorative ring.
[0045] In view of this, reference Figures 1 to 3 The embodiment of the present application provides a vehicle lamp, comprising a bottom shell 1, a light distribution mirror 2 and a decorative ring 3, wherein the light distribution mirror 2 is connected to the bottom shell 1 to form a storage space for accommodating a light source; the decorative ring 3 is arranged between the light distribution mirror 2 and the bottom shell 1; wherein the light distribution mirror 2 comprises a first light-transmitting portion 21 and a first light-shielding portion 22, wherein the first light-transmitting portion 21 comprises a main body portion 211 and a connecting portion 212 connected to each other, wherein the connecting portion 212 is arranged around the outer edge of the main body portion 211, and the connecting portion 212 has a first side surface 2121 away from the storage space, and the first light-shielding portion 22 is arranged on the first side surface 2121.
[0046] The photometric mirror 2 is connected to the bottom shell 1 to form a receiving space. The decorative ring 3 is arranged in the receiving space and connected to the bottom shell 1. The receiving space has a light source connected to the bottom shell 1. The light emitted by the light source passes through the decorative ring 3 and the photometric mirror 2 in sequence, and then is emitted into the environment by the first light-transmitting portion 21 of the photometric mirror 2.
[0047] In the vehicle lamp proposed in the embodiment of the present application, the first light-transmitting portion 21 includes a main body portion 211 and a connecting portion 212, the connecting portion 212 is arranged at the outer edge of the main body portion 211, and the first light-shielding portion 22 is arranged on a first side surface 2121 of the connecting portion 212 away from the accommodating space. The first light-shielding portion 22 is arranged on the outer side of the connecting portion 212, and when the first light-shielding portion 22 and the first light-transmitting portion 21 absorb heat and shrink, even if cracks occur at the overlap of the first light-shielding portion 22 and the first light-transmitting portion 21, since the first light-shielding portion 22 is not light-transmitting, the first light-shielding portion 22 can shield the cracks between the first light-shielding portion 22 and the first light-transmitting portion 21, thereby improving the appearance of the vehicle lamp.
[0048] Optionally, a dot-casting portion is provided on the first side surface 2121. When the first light-transmitting portion 21 is injection-molded, the dot-casting portion is provided on the first side surface 2121, and the first light-shielding portion 22 is connected to the first side surface 2121 of the connecting portion 212, so as to shield the dot-casting portion, improve the perceived quality of the appearance, and improve the perceived quality of the vehicle lamp in both dynamic and static conditions.
[0049] Optionally, refer to Figure 2 and Figure 3 The connecting portion 212 includes a first section 2122 and a second section 2123 connected to each other, the first section 2122 is connected to the main body 211, and the second section 2123 protrudes toward the center of the accommodating space compared to the main body 211, so that the second section 2123 and the first section 2122 are defined as a first recessed portion, and at least a portion of the first light-shielding portion 22 is arranged in the first recessed portion.
[0050] The connecting portion 212 includes a first section 2122 and a second section 2123 connected to each other, the first section 2122 is connected to the main body 211 at an angle, the first section 2122 is connected to the second section 2123 at an angle, and from one end where the first section 2122 is connected to the main body 211 to one end where the first section 2122 is connected to the second section 2123, the first section 2122 extends toward the accommodation space, so that the second section 2123 protrudes toward the accommodation space relative to the main body 211, so that the first section 2122 and the second section 2123 are configured to form a first recessed portion relative to the main body 211. The first light shielding portion 22 is at least partially disposed in the first recessed portion, reducing the size of the first light shielding portion 22 protruding from the main body 211, thereby improving the appearance of the vehicle lamp.
[0051] The second section 2123 has a first side surface 2121 , and the first light shielding portion 22 is at least partially disposed on the first side surface 2121 . In other words, the first light shielding portion 22 has a portion disposed on the first side surface 2121 and a portion protruding from the first section 2122 .
[0052] Optionally, the side of the first light shielding portion 22 away from the accommodation space is coplanar with the side of the body portion 211 away from the accommodation space. In other words, the first light shielding portion 22 and the body portion 211 are flush on the side away from the accommodation space, improving the appearance of the lamp.
[0053] Optionally, refer to Figure 3 The first light-transmitting portion 21 also includes a welding portion 213, which is arranged at the outer edge of the second section 2123. The welding portion 213 and the second section 2123 are both plate-like structures. The welding portion 213 is connected to the second section 2123 at an angle. The welding portion 213 extends toward the bottom shell 1 and is welded and fixed to the bottom shell 1.
[0054] The welding portion 213 is disposed at the outer edge of the second section 2123 and connected to the second section 2123 at an angle. The welding portion 213 extends toward the bottom shell 1 for being welded and fixed to the bottom shell 1 .
[0055] It should be understood that the welding portion 213 is integrally formed with the body portion 211 and the connecting portion 212 .
[0056] Optionally, refer to Figure 3 The first light shielding portion 22 has a first inner end 221 close to the main body 211 and a first outer end 222 away from the main body 211 . In a direction from the first inner end 221 to the first outer end 222 , the first outer end 222 protrudes from an end of the second section 2123 away from the main body 211 .
[0057] During the injection molding process of the first light-transmitting portion 21, the first light-shielding portion 22 serves as the mold parting surface for molding the first light-transmitting portion 21. From the first inner end 221 to the first outer end 222, the first outer end 222 protrudes from the end of the second section 2123 away from the main body portion 211, thereby reducing the probability of glue overflow during the injection molding process of the first light-shielding portion 22.
[0058] Optionally, refer to Figure 3 The light distribution mirror 2 also includes a second light shielding portion 23, which is connected to the first outer end 222. The first light shielding portion 22 and the second light shielding portion 23 are both constructed as a plate-like structure. The second light shielding portion 23 is connected to the first light shielding portion 22 at an angle. The second light shielding portion 23 extends toward the bottom shell 1 and is arranged around the outer periphery of the welding portion 213.
[0059] The second shading portion 23 is connected to the first outer end 222 at an angle, and the second shading portion 23 extends toward the bottom shell 1 and is arranged around the outer periphery of the welding portion 213. Since the welding portion 213 is made of a light-transmitting material, it will transmit the light emitted by the light source. The second shading portion 23 is arranged around the outer periphery of the welding portion 213 to block the welding portion 213 and reduce the light passing through the welding portion 213.
[0060] It should be understood that the second light shielding portion 23 extends toward the bottom shell 1 , but a gap is left between the second light shielding portion 23 and the bottom shell 1 , and the welding portion 213 is welded to the bottom shell 1 .
[0061] Optionally, refer to Figure 3 , along the direction in which the second light shielding portion 23 extends toward the bottom case 1, the size of the second light shielding portion 23 is c, satisfying: c ≥ 2mm. The second light shielding portion 23 is used to shield the welding portion 213 and reduce the light from the welding portion 213. If the size c of the second light shielding portion 23 is less than 2mm, light will leak from the welding portion 213. Therefore, the size of the second light shielding portion 23 equal to 2mm is the minimum size to prevent the welding portion 213 from leaking light.
[0062] Optionally, refer to Figure 3 , from the first inner end 221 to the first outer end 222 , the dimension of the first outer end 222 protruding from the end of the second section 2123 away from the main body 211 is b, satisfying: b≥c.
[0063] The dimension of the first outer end 222 protruding from the end of the second section 2123 away from the main body 211 is the length of the sealing glue of the mold parting surface of the first light-transmitting part 21, and the sealing glue length must be at least 2 mm to reduce the overflow of glue during the injection molding process and reduce the probability of the second light-shielding part 23 being broken due to the slender structure of the second light-shielding part 23. The second light-shielding part 23 forms a boss on the core of the mold for forming the first light-transmitting part 21. If b<c, the second light-shielding part 23 presents a slender structure, which is easy to form thin steel of the mold, causing the second light-shielding part 23 to be easy to crack.
[0064] Optionally, refer to Figure 3 The second section 2123 has a second inner end 2124 close to the main body 211 and a second outer end 2125 away from the main body 211. In the direction from the second inner end 2124 to the second outer end 2125, the size of the second section 2123 is a, satisfying: a≥7mm.
[0065] Since the second section 2123 has a point gate, during the injection molding process of the first light-transmitting portion 21, the distance between the hot runner nozzle cap and the first section 2122 of the first light-transmitting portion 21 needs to be greater than the safety distance of 8mm required for the quenching mold steel to reduce mold cracking. Therefore, it is necessary to control the distance between the hot runner nozzle cap and the first section 2122, that is, it is necessary to control the size of the second section 2123 in the direction from the second inner end 2124 to the second outer end 2125. When the size a of the second section 2123 satisfies a≥7mm, during the injection molding process of the first light-transmitting portion 21, the distance between the hot runner nozzle cap and the first section 2122 of the first light-transmitting portion 21 is greater than the safety distance required for the quenching mold steel, thereby reducing the probability of mold cracking.
[0066] Optionally, refer to Figure 4 and Figure 5 The decorative ring 3 includes a second light-transmitting portion 31 and a plurality of third light-shielding portions 32. The second light-transmitting portion 31 has a second side surface 311 away from the accommodating space. The second side surface 311 is provided with a plurality of second recessed portions 312. The plurality of second recessed portions 312 are arranged at intervals. Each third light-shielding portion 32 includes a third section 321 and a fourth section 322 connected to each other. The third section 321 is accommodated in the corresponding second recessed portion 312. Along the overlapping direction of the third light-shielding portion 32 and the second light-transmitting portion 31, the fourth section 322 protrudes from the second side surface 311, and a portion of the fourth section 322 overlaps the second side surface 311.
[0067] Specifically, the second light-transmitting portion 31 has a second side surface 311 away from the accommodation space, and the second light-transmitting portion 31 is further provided with a plurality of second recessed portions 312 recessed from the second side surface 311 toward the accommodation space, and the third light-shielding portion 32 includes a third section 321 and a fourth section 322 connected to each other, and the third section 321 is accommodated in the corresponding second recessed portion 312. Along the overlapping direction of the third light-shielding portion 32 and the second light-transmitting portion 31, the fourth section 322 protrudes from the second side surface 311, and the edge of the fourth section 322 overlaps the second side surface 311. In other words, along the overlapping direction of the third light-shielding portion 32 and the second light-transmitting portion 31, the projection of the third section 321 overlaps with the second recessed portion 312, and the projection of the third section 321 and the projection of the second recessed portion 312 both fall within the projection of the fourth section 322, and the fourth section 322 protrudes from the third section 321 and overlaps with the second side surface 311.
[0068] Since there is a rounded corner between the second side surface 311 and the side surface of the second recessed portion 312, during the injection molding of the third light shielding portion 32, if the outer surface of the third light shielding portion 32 is flush with the second side surface 311, the third light shielding portion 32 is likely to form a sharp corner at the rounded corner. In addition, during the injection molding of the third light shielding portion 32, it is difficult for the rubber to fill into the sharp corner, so that the problem of insufficient injection molding is likely to occur, which in turn causes a discontinuous boundary between the third light shielding portion 32 and the second light-transmitting portion 31.
[0069] Therefore, in the present application, the fourth section 322 is provided to protrude from the third side surface, and part of the fourth end is overlapped on the third side surface, thereby reducing the problem of dissatisfaction in injection molding during the molding process of the third shading portion 32, reducing the probability of the third shading portion 32 being prone to forming uneven sharp corners, and improving the flatness of the connection boundary between the third shading portion 32 and the second light-transmitting portion 31, thereby improving the dynamic and static perception quality of the car light.
[0070] The second light-transmitting portion 31 and the third light-shielding portion 32 adopt a two-color molding process to replace the costly hot stamping and laser engraving post-processing processes, and achieve the lighting effect of the lamp parameterized symbols, and reduce the problem of uneven parameterized symbol boundaries.
[0071] In a specific embodiment, the connection between the side surface of the second recessed portion 312 and the second side surface 311 has a rounded corner, and the rounded corner radius is 0.2 mm. The angle between the side surface of the second recessed portion 312 and the overlapping direction of the third light shielding portion 32 and the second light-transmitting portion 31 is greater than or equal to 3°, so as to improve the bonding strength between the side surface of the second recessed portion 312 and the third light shielding portion 32.
[0072] The fourth section 322 includes an outer surface and a third side surface connected between the outer surface and the second side surface 311 . The angle between the third side surface and the overlapping direction of the third light shielding portion 32 and the second light transparent portion 31 is greater than or equal to 7° to facilitate demoulding.
[0073] In a specific embodiment, the minimum size of the fourth section 322 is greater than or equal to 5 mm, so that the third light shielding portion 32 can be completely filled, thereby reducing the probability of short shot glue shortage.
[0074] Optionally, along the overlapping direction of the third light shielding portion 32 and the second light transmitting portion 31, the dimension of the fourth section 322 protruding from the second side surface 311 is n, which satisfies: 0.5mm≤n≤3mm. If the dimension of the fourth section 322 protruding from the second side surface 311 is too small, the rubber covering the second side surface 311 of the fourth section 322 is too thin, and the rubber is easily unable to fill the product during the injection molding process, resulting in a short shot and lack of glue. Therefore, it is necessary to satisfy the dimension of the fourth section 322 protruding from the second side surface 311 of 0.5mm≤n≤3mm, and increase the dimension of the fourth section 322 protruding from the second side surface 311 to reduce the probability of molding defects in the fourth section 322 of the third light shielding portion 32.
[0075] In a specific embodiment, along the overlapping direction of the third light shielding portion 32 and the second light transparent portion 31, the size of the third section 321 is equal to the depth of the second recessed portion 312. Along the overlapping direction of the third light shielding portion 32 and the second light transparent portion 31, the size of the third section 321 or the depth of the second recessed portion 312 is h, which satisfies: 0mm≤h≤2.5mm. And the sum of the size of the third section 321 or the depth h of the second recessed portion 312 and the size n of the fourth section 322 protruding from the second side surface 311 should be controlled within an appropriate range, that is, along the overlapping direction of the third light shielding portion 32 and the second light transparent portion 31, the size of the third light shielding portion 32 can be controlled within an appropriate range.
[0076] In a specific embodiment, along the overlapping direction of the third light shielding portion 32 and the second light-transmitting portion 31, the size of the third light shielding portion 32 is 3 mm. If the size of the third light shielding portion 32 is greater than 3 mm, the injection cooling time of the part will be increased, thereby increasing the molding cycle of the third light shielding portion 32; if the size of the third light shielding portion 32 is less than 0.5 mm, the glue material of the third light shielding portion 32 covering the second side surface 311 will be too small, and during the injection molding process, the glue material cannot be filled into the space between the second side surface 311 and the mold, which will easily cause short shots and glue shortages.
[0077] If the size of the third light shielding portion 32 along the overlapping direction of the second light-transmitting portion 31 is 3 mm, the size n of the fourth section 322 protruding from the second side surface 311 may be 0.5 mm, and the size of the third section 321 or the depth h of the second recessed portion 312 may be 2.5 mm; or, the size n of the fourth section 322 protruding from the second side surface 311 may be 1 mm, and the size of the third section 321 or the depth h of the second recessed portion 312 may be 2 mm; or, the size n of the fourth section 322 protruding from the second side surface 311 may be 1 mm, and the size of the third section 321 or the depth h of the second recessed portion 312 may be 2 mm; The dimension n of the second side surface 311 may be 1.5 mm, and the dimension h of the third section 321 or the depth h of the second recessed portion 312 may be 1.5 mm; or, the dimension n of the fourth section 322 protruding from the second side surface 311 may be 2.5 mm, and the dimension h of the third section 321 or the depth h of the second recessed portion 312 may be 0.5 mm; or, the dimension n of the fourth section 322 protruding from the second side surface 311 may be 3 mm, and the dimension h of the third section 321 or the depth h of the second recessed portion 312 may be 0 mm.
[0078] Optionally, the minimum distance between two adjacent third shading portions 32 is f, satisfying: f ≥ 3 mm. If the distance between two adjacent third shading portions 32 is too small, the mold protrusions of the third shading portions 32 will form mold thin steel during the injection molding process, which is easy to break. Therefore, the minimum distance between two adjacent third shading portions 32 is appropriately increased to reduce the formation of mold thin steel, thereby improving the strength of the mold and further improving the injection molding stability.
[0079] Optionally, the minimum width of the overlapping area between the fourth section 322 and the second side surface 311 is m, which satisfies: 0.2mm<m≤3mm. Since there is a process fillet at the connection between the second side surface 311 and the side wall of the second recessed portion 312, if the fillet radius is equal to 0.2mm, the minimum width m of the overlapping area between the fourth section 322 and the second side surface 311 should be greater than 0.2mm to reduce the phenomenon of fracture caused by the presence of sharp steel in the mold cavity of the third light shielding portion 32. If the minimum width m of the overlapping area between the fourth section 322 and the second side surface 311 is too small, the size of the fourth section 322 overlapping the second side surface 311 will be too small. During the injection molding process, if the wall thickness of the rubber is thin, the flow length of the rubber is too long, which is easy to cause short shots, and then cause the connection interface between the second light shielding portion 32 and the second side surface 311 to be uneven and discontinuous.
[0080] Specifically, the minimum width m of the overlapping area between the fourth section 322 and the second side surface 311 can be equal to the dimension n of the fourth section 322 protruding from the second side surface 311, that is, m=n, or 0.2mm<m≤0.5mm. When n=0.5mm, 0.2mm<m≤0.5mm, the value of m is less than or equal to 0.5mm to reduce the probability of short shots due to the thin wall thickness of the rubber material and the long flow length of the rubber material during the injection molding process; when 0.5mm<n≤3mm, m=n, the raised area of the fourth section 322 covering the second side surface 311 is a square, so that the square area can be filled with rubber material, thereby reducing the short shot lack of glue phenomenon. By controlling the minimum width of the overlapping area between the fourth section and the second side surface, the flatness and continuity of the connection interface between the second light shielding portion 32 and the second side surface 311 are improved.
[0081] The present application also provides a vehicle, comprising the vehicle lamp described in any one of the above embodiments. Preferably, the vehicle lamp described in any one of the above embodiments may be a car taillight.
[0082] The bottom shell 1 of the headlight is fixed to the vehicle, and the first light shielding portion 22 of the light distribution mirror 2 covers the point gate of the first light-transmitting portion 21 and covers the connection portion of the first light-transmitting portion 21, thereby improving the appearance quality and qualified rate of the vehicle and improving the static perception quality of the vehicle lamp. The light distribution mirror 2 also includes a second light shielding portion 23 integrally formed with the first light shielding portion 22, the second light shielding portion 23 is connected to the first outer end 222 of the first light shielding portion 22, and is connected to the first light shielding portion 22 at an angle, and the second light shielding portion 23 is arranged around the periphery of the welding portion 213 to reduce the light from the welding portion 213.
[0083] The decorative ring 3 includes a second light-transmitting portion 31 and a plurality of third light-shielding portions 32. The second light-transmitting portion 31 has a second side surface 311. The second side surface 311 is provided with a plurality of second recessed portions 312 arranged at intervals. Each third light-shielding portion 32 includes a third section 321 and a fourth section 322. The third section 321 is accommodated in the corresponding second recessed portion 312. The fourth section 322 is connected to the third section 321 and protrudes from the second side surface 311 and extends to the second side surface 311 and overlaps the second side surface 311, thereby reducing the probability of forming an uneven sharp angle between the second side surface 311 and the second light-shielding portion 23, and improving the connection flatness between the third light-shielding portion 32 and the second light-transmitting portion 31.
[0084] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.
[0085] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.
[0086] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
[0087] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are all within the scope defined by the appended claims.
Claims
1. A vehicle lamp, characterized in that: include: Bottom shell; A light distribution lens connected to the bottom shell to form a receiving space for receiving the light source; A decorative ring, arranged between the light distribution lens and the bottom shell; Among them, the light distribution mirror includes a first light-transmitting part and a first light-shielding part, the first light-transmitting part includes a main body part and a connecting part connected to each other, the connecting part is surrounded by the outer edge of the main body part, the connecting part has a first side surface away from the accommodating space, and the first light-shielding part is arranged on the first side surface.
2. The vehicle lamp according to claim 1, characterized in that: The first side surface is provided with a pouring portion.
3. The vehicle lamp according to claim 1, characterized in that: The connecting portion includes a first section and a second section connected to each other, the first section is connected to the main body, and the second section protrudes toward the center of the accommodating space compared to the main body, so that the second section and the first section are defined as a first recessed portion, and at least a portion of the first shading portion is arranged in the first recessed portion.
4. The vehicle lamp according to claim 3, characterized in that: The side surface of the first light shielding portion away from the accommodating space is coplanar with the side surface of the main body portion away from the accommodating space.
5. The vehicle lamp according to claim 3, characterized in that: The first light-transmitting portion also includes a welding portion, which is arranged at the outer edge of the second section. The welding portion and the second section are both plate-like structures. The welding portion is connected to the second section at an angle, and the welding portion extends toward the bottom shell and is welded and fixed to the bottom shell.
6. The vehicle lamp according to claim 5, characterized in that: The first light shielding portion has a first inner end close to the main body and a first outer end away from the main body. In a direction from the first inner end to the first outer end, the first outer end protrudes from an end of the second segment away from the main body.
7. The vehicle lamp according to claim 6, characterized in that: The light distribution mirror also includes a second light shielding portion, which is connected to the first outer end, the first light shielding portion and the second light shielding portion are both constructed as a plate-like structure, the second light shielding portion is connected to the first light shielding portion at an angle, and the second light shielding portion extends toward the bottom shell and is arranged around the outer periphery of the welding portion.
8. The vehicle lamp according to claim 7, characterized in that: Along the direction in which the second light shielding portion extends toward the bottom shell, the size of the second light shielding portion is c, satisfying: c≥2mm.
9. The vehicle lamp according to claim 8, characterized in that: In a direction from the first inner end to the first outer end, a dimension b of the first outer end protruding from an end of the second section away from the main body portion satisfies: b≥c.
10. The vehicle lamp according to any one of claims 3 to 9, wherein the second section has a second inner end close to the main body and a second outer end away from the main body, and a dimension of the second section from the second inner end to the second outer end is a, satisfying: a ≥ 7 mm.
11. The vehicle lamp according to claim 1, characterized in that: The decorative ring includes a second light-transmitting portion and a plurality of third light-shielding portions, the second light-transmitting portion has a second side surface away from the accommodating space, the second side surface is provided with a plurality of second recessed portions, the plurality of second recessed portions are arranged at intervals, each of the third light-shielding portions includes a third section and a fourth section connected to each other, the third section is accommodated in the corresponding second recessed portion, and along the overlapping direction of the third light-shielding portion and the second light-transmitting portion, the fourth section protrudes from the second side surface, and a portion of the fourth section overlaps with the second side surface.
12. The vehicle lamp according to claim 11, characterized in that: The minimum distance between two adjacent third light-shielding portions is f, satisfying: f≥3 mm.
13. The vehicle lamp according to claim 11, characterized in that: The minimum width of the overlapping area between the fourth section and the second side surface is m, which satisfies: 0.2 mm<m≤3 mm.
14. The vehicle lamp according to claim 11, characterized in that: Along the overlapping direction of the third light shielding portion and the second light transmitting portion, a dimension of the fourth section protruding from the second side surface is n, satisfying: 0.5 mm ≤ n ≤ 3 mm.
15. A vehicle, characterized in that: A vehicle lamp comprising the vehicle lamp according to any one of claims 1 to 14.