Lampshade structure and vehicle lamp

The split-type lampshade structure solves the problem of shrinkage marks during injection molding, achieving higher surface quality and consistency, simplifying production, and improving market competitiveness and reliability.

CN223814589UActive Publication Date: 2026-01-20GAC TOYOTA MOTOR
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Patent Information

Application Number
CN202520603137.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-01-20
Estimated Expiration
2035-04-01

AI Technical Summary

Technical Problem

In existing technologies, lampshades are prone to shrinkage marks during injection molding, resulting in poor overall surface quality and affecting aesthetics and market competitiveness.

Method used

The lampshade structure adopts a split design, including a first lampshade, a second lampshade, and an independent third lampshade. The third lampshade is connected to the first and second lampshades through connectors to form a stable three-dimensional structure, avoiding surface depressions caused by differences in shrinkage rates at different thickness locations.

Benefits of technology

It significantly improves the overall surface quality and consistency of the lampshade structure, simplifies the production process, reduces production costs, increases production efficiency, and enhances the product's market competitiveness and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lampshade structure and an automobile lamp, and relates to the technical field of automobile accessories, the lampshade structure comprises a first lampshade, a second lampshade and a third lampshade, the second lampshade is arranged at one end of the first lampshade, the third lampshade is independent of the first lampshade, and the third lampshade comprises a first connecting piece and a second connecting piece which are connected with each other; the first connecting piece is connected with the first lampshade, and the second connecting piece is connected with the end, away from the first lampshade, of the second lampshade. According to the technical scheme, the third lamp shade is independent of the first lamp shade, so that the third lamp shade and the first lamp shade can be separated into two parts, and the split type design avoids the problem of surface depression caused by different shrinkage rates of different thickness positions in the traditional integral forming process; product defects caused by shrinkage traces are eliminated, so that the overall surface quality and consistency of the lampshade structure are remarkably improved, the more concise and attractive appearance effect is achieved, and the requirement of the market for high-quality automobile lamps is met.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessories, especially to a lampshade structure and vehicle lamp. BACKGROUND

[0002] With the rapid development of automobile lamp technology, customers' requirements for the appearance quality of vehicle lamps are higher and higher. Among them, vehicle lamp injection molding is an extremely important process link, which is directly related to the appearance quality and safety of vehicle lamps. In the prior art, the lampshade is usually made by one-piece injection molding process. This process can efficiently produce lampshades with complex shapes, but in the injection molding process, shrinkage marks (such as surface depression) often occur. These shrinkage marks mainly appear in the thicker parts of black lampshades and other thicker parts, resulting in poor overall surface quality of the lampshade, which affects the aesthetic appearance and market competitiveness of the final product. SUMMARY

[0003] The main purpose of the utility model is to provide a lampshade structure and vehicle lamp, which aims to solve the problem of how to improve the overall surface quality of the lampshade.

[0004] To achieve the above-mentioned purpose, the utility model provides a lampshade structure, which comprises:

[0005] a first lampshade;

[0006] a second lampshade, which is arranged at one end of the first lampshade, and a transparent area capable of transmitting light is arranged on the second lampshade;

[0007] a third lampshade, which is independent of the first lampshade, and comprises a first connecting piece and a second connecting piece connected to each other, the first connecting piece is connected to the first lampshade, and the second connecting piece is connected to one end of the second lampshade away from the first lampshade, and the first connecting piece is used to connect with a lamp shell.

[0008] In an embodiment, one side of the first connecting piece towards the first lampshade is provided with a first connecting surface and a second connecting surface connected to each other, one side of the first lampshade towards the first connecting piece is provided with a third connecting surface and a fourth connecting surface connected to each other, the first connecting surface is connected to the third connecting surface, the second connecting surface is connected to the fourth connecting surface, and a first included angle is formed between the first connecting surface and the second connecting surface, and the first included angle is defined as A, then 0° < A < 180°.

[0009] In an embodiment, a shaped surface is further arranged on the first lampshade, the shaped surface is connected to one end of the third connecting surface away from the fourth connecting surface, a second included angle is formed between the shaped surface and the third connecting surface, and the second included angle is defined as B, then 160° ≤ B ≤ 170°.

[0010] In an embodiment, the length of the first connecting piece is defined as C, and 5.5mm≤C≤6mm.

[0011] In an embodiment, the first connecting piece comprises a first connecting portion and a second connecting portion connected with each other, the first connecting portion is provided with the first connecting surface and the second connecting surface at one end away from the second connecting portion, and the width of the second connecting portion is defined as D, and 1.6mm≤D≤2mm.

[0012] In an embodiment, the first connecting piece is spaced apart from the second lampshade, the first lampshade comprises a first side and a second side, the second lampshade is connected with the second side, and the first connecting piece is connected with the first side.

[0013] In an embodiment, the third lampshade is an integrally formed piece.

[0014] In an embodiment, the second lampshade is an integrally formed piece.

[0015] In an embodiment, the first lampshade is an integrally formed piece.

[0016] In addition, the utility model still proposes a kind of car light, the car light includes lamp shell, light component and the lampshade structure as any of the above technical solutions described, the lamp shell is sealedly connected with the first connecting piece, to make the lamp shell and the first lampshade and the second lampshade are enclosed to form the installation cavity for accommodating the light component, the light component is connected with the lamp shell, and the light component is used to emit the light.

[0017] In the embodiment of the utility model, first lamp shade mainly plays the role of protection and support, can protect the internal structure of car light from the influence of external environment, second lamp shade is arranged at one end of first lamp shade, second lamp shade can be set as transparent region integrally, also can be set as transparent region locally, this embodiment does not make limited to this, transparent region allows light to penetrate, ensures the efficient propagation and uniform distribution of light, improves the illumination effect of car light, reduces light loss and scattering, satisfies the requirement of car light to high optical performance, third lamp shade is independent of first lamp shade, so that third lamp shade and first lamp shade can be separated into two components, realizes independent manufacturing and optimization of each component, compared with the lamp shade of traditional one-piece forming and leading to uneven structure thickness everywhere, the lamp shade structure adopts split design, so that the structure thickness of first lamp shade and third lamp shade is more uniform, can avoid the phenomenon of local overthick or too thin, thereby avoiding the surface depression problem caused by the shrinkage rate difference of different thickness positions, significantly improving the overall surface quality and consistency of lamp shade structure, first connecting piece and second connecting piece contained in third lamp shade are connected with first lamp shade and second lamp shade respectively, form a stable three-dimensional structure, and first connecting piece is also used to connect with lamp shell, thereby ensuring the stability of the whole car light structure, further improving the reliability and durability of car light. In the embodiment of the utility model, the third lamp shade is independent of the first lamp shade, so that the third lamp shade and the first lamp shade can be separated into two components. This split design avoids the surface depression problem caused by the shrinkage rate difference of different thickness positions in the traditional one-piece forming process, eliminates product defects caused by shrinkage marks, thereby significantly improving the overall surface quality and consistency of the lamp shade structure, achieving a more simple and beautiful appearance effect, meeting the market demand for high-quality car lights, and enhancing the market competitiveness of the product. Moreover, the lamp shade structure adopts the modular design of the first lamp shade, the second lamp shade and the third lamp shade, improves the assembly flexibility of the lamp shade, simplifies the production process, reduces the complexity in the injection molding process, thereby improving the production efficiency, reducing the product scrap rate caused by shrinkage marks, and reducing the demand for additional shrinkage groove design, reducing material waste, reducing production cost, and improving economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings from the structures shown in these drawings without creating any creative labor.

[0019] Figure 1 It is an embodiment of the lamp shade structure of the utility model.

[0020] Figure 2 Figure 2 is another perspective view of the lampshade structure according to an embodiment of the present application;

[0021] Figure 3 Figure 3 is a cross-sectional view of the lampshade structure according to an embodiment of the present application;

[0022] Figure 4 Figure 4 is a partial enlarged view of A in Figure 1. Figure 3

[0023] Brief Description of the Drawings:

[0024] 100, lampshade structure; 1, first lampshade; 11, third connecting surface; 12, fourth connecting surface; 13, forming surface; 14, first edge; 15, second edge; 2, second lampshade; 21, transparent area; 3, third lampshade; 31, first connecting member; 311, first connecting part; 3111, first connecting surface; 3112, second connecting surface; 312, second connecting part; 32, second connecting member.

[0025] The present application is achieved, the function characteristics and the advantages will be further explained in combination with the embodiments, and with reference to the drawings. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0028] ​In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0029] With the rapid development of automobile lamp technology, customers have higher and higher requirements on the appearance quality of automobile lamp. Among them, the injection molding of automobile lamp is an extremely important process link, which is directly related to the appearance quality and safety of automobile lamp. In the prior art, the lampshade is usually formed by one-piece injection molding process. This process can efficiently produce lampshades with complex shapes, but in the injection molding process, shrinkage marks (such as surface depression) often occur. These shrinkage marks mainly occur in thick parts such as black lampshades, resulting in poor overall surface quality of the lampshade, affecting the appearance and market competitiveness of the final product.

[0030] After careful research by the applicant, it is found that these shrinkage marks mainly occur in thick structural parts such as lampshades, which is caused by different shrinkage rates at different thickness positions of the lampshade. Specifically, the thicker part cools slower, and the material shrinks more during the cooling process, thus forming obvious shrinkage marks, resulting in poor overall surface quality of the lampshade, affecting the appearance and market competitiveness of the final product. In order to alleviate the above-mentioned shrinkage mark problem, the prior art often adopts the method of setting shrinkage grooves on the surface of the lampshade. However, this design of shrinkage grooves can alleviate the shrinkage problem to some extent, but it directly affects the appearance quality of the whole lamp, resulting in poor appearance.

[0031] The main purpose of the utility model is to provide a lampshade structure and a car lamp to solve the problem of how to improve the overall surface quality of the lampshade.

[0032] Please refer to Figures 1 to 3In an embodiment of the utility model, the lampshade structure 100 includes a first lampshade 1, a second lampshade 2 and a third lampshade 3, the second lampshade 2 is arranged at one end of the first lampshade 1, the second lampshade 2 is provided with a transparent area 21 capable of penetrating light, the third lampshade 3 is independent of the first lampshade 1, the third lampshade 3 includes a first connecting piece 31 and a second connecting piece 32 connected with each other, the first connecting piece 31 is connected with the first lampshade 1, the second connecting piece 32 is connected with one end of the second lampshade 2 away from the first lampshade 1, and the first connecting piece 31 is used to be connected with a lamp shell (not shown in the figure).

[0033] In an embodiment of the utility model, the first lampshade 1 mainly plays the role of protection and support, can protect the internal structure of the vehicle lamp (not shown in the figure) from the influence of external environment, the second lampshade 2 is arranged at one end of the first lampshade 1, the second lampshade 2 can be wholly provided as the transparent area 21, or partially provided as the transparent area 21, and the embodiment does not limit this, the transparent area 21 allows light to penetrate, ensures the efficient propagation and uniform distribution of light, improves the illumination effect of the vehicle lamp, reduces light loss and scattering, meets the requirement of the vehicle lamp on high optical performance, the third lampshade 3 is independent of the first lampshade 1, so that the third lampshade 3 and the first lampshade 1 can be separated into two components, realizes the independent manufacturing and optimization of each component, compared with the traditional lampshade of one-piece molding leading to uneven structure thickness, the lampshade structure 100 adopts split design, so that the structure thickness of the first lampshade 1 and the third lampshade 3 is more uniform, can avoid the phenomenon of local overthickness or underthickness, thereby avoiding the surface depression problem caused by the difference of shrinkage rate in different thickness positions, significantly improves the overall surface quality and consistency of the lampshade structure 100, the first connecting piece 31 and the second connecting piece 32 included in the third lampshade 3 are connected with the first lampshade 1 and the second lampshade 2 respectively, form a stable three-dimensional structure, and the first connecting piece 31 is also used to be connected with the lamp shell, thereby ensuring the stability of the entire vehicle lamp structure, further improves the reliability and durability of the vehicle lamp.

[0034] The technical scheme of the utility model discloses through adopting the third lamp shade 3 independent of the first lamp shade 1, so that the third lamp shade 3 and the first lamp shade 1 can be separated into two components, the split type design avoids the surface depression problem caused by the shrinkage rate difference of different thickness positions in the traditional integrated forming process, eliminates the product defects caused by the shrinkage trace, thereby significantly improves the overall surface quality and consistency of the lamp shade structure 100, realizes more simple and beautiful appearance effect, satisfies the market demand for high-quality car light, enhances the market competitiveness of the product, and the lamp shade structure 100 adopts the modular design of the first lamp shade 1, the second lamp shade 2 and the third lamp shade 3, improves the assembly flexibility of the lamp shade, simplifies the production process, reduces the complexity in the injection molding process, thereby improves the production efficiency, reduces the product scrap rate caused by the shrinkage trace, simultaneously reduces the demand for additional shrinkage groove design, reduces material waste, reduces production cost, improves economic benefit.

[0035] Please refer to Figure 4In an embodiment, the first connecting piece 31 is provided with a first connecting surface 3111 and a second connecting surface 3112 connected to each other on one side of the first lampshade 1, the first lampshade 1 is provided with a third connecting surface 11 and a fourth connecting surface 12 connected to each other on one side of the first connecting piece 31, the first connecting surface 3111 is connected to the third connecting surface 11, the second connecting surface 3112 is connected to the fourth connecting surface 12, and a first included angle is formed between the first connecting surface 3111 and the second connecting surface 3112, and the first included angle is defined as A, then 0°<A<180°; specifically, the first included angle A between the first connecting surface 3111 and the second connecting surface 3112 is to optimize the contact area and stress distribution between the first connecting piece 31 and the first lampshade 1, and the first included angle A ranges from 0° to 180°, which means that the first connecting surface 3111 and the second connecting surface 3112 are not in a collinear or coplanar relationship, but form a specific angle, which can increase the contact area between the first connecting piece 31 and the first lampshade 1, thereby enhancing the connection strength and stability between the first lampshade 1 and the first connecting piece 31, making the first lampshade 1 and the first connecting piece 31 more firmly connected, improving the anti-deformation ability of the connection part, ensuring that there is no loosening or falling phenomenon during use, and improving the stability and reliability of the lampshade structure 100; and since the first connecting surface 3111 is connected to the third connecting surface 11, and the second connecting surface 3112 is connected to the fourth connecting surface 12, the third included angle E between the third connecting surface 11 and the fourth connecting surface 12 is equal to the first included angle A between the first connecting surface 3111 and the second connecting surface 3112, and satisfies 0°<E<180°, and the cooperation of the first connecting surface 3111, the second connecting surface 3112, the third connecting surface 11 and the fourth connecting surface 12 ensures the seamless connection between the first lampshade 1 and the first connecting piece 31; in this embodiment, the specific size of the first included angle A can be selected according to actual needs, which is not limited in this embodiment.

[0036] Please refer to Figure 4In an embodiment, the first lampshade 1 is further provided with a shaped surface 13, the shaped surface 13 is connected with one end of the third connecting surface 11 away from the fourth connecting surface 12, and a second included angle is formed between the shaped surface 13 and the third connecting surface 11. The second included angle is defined as B, and 160°≤B≤170°. Specifically, by setting the second included angle B between the shaped surface 13 and the fourth connecting surface 12 as 160°≤B≤170°, and the second included angle B is close to 180°, the shaped surface 13 and the third connecting surface 11 are not coplanar, which explicitly increases the contact area between the first lampshade 1 and the first connecting piece 31. Compared with the traditional plane connection, this angle design makes the contact area between the two wider, thereby significantly improving the connection strength and stability. At the same time, a smooth transition area can be formed between the shaped surface 13 and the fourth connecting surface 12, reducing the obvious joints or depressions that may occur in traditional designs, making the entire connection part smoother and more beautiful. The second included angle B avoids the occurrence of right angles or sharp angles, thereby dispersing the stress generated during the material shrinkage in the injection molding process, significantly reducing the risk of deformation or cracking of the connection part due to stress concentration, and improving the stability and durability of the overall structure. In the present embodiment, the specific size of the second included angle B can be selected according to actual needs, which is not limited in the present embodiment.

[0037] Please refer to Figure 4 In an embodiment, the length of the first connecting piece 31 is defined as C, and 5.5mm≤C≤6mm. Specifically, the length C of the first connecting piece 31 refers to the length from one end of the first connecting surface 3111 away from the second connecting surface 3112 to the other end of the second connecting surface 3112 away from the first connecting surface 3111. The specific range is 5.5mm≤C≤6mm. The length C is designed to be optimized to ensure that it meets the requirements of the injection molding process while providing sufficient connection strength and assembly accuracy. The lower limit of the length C (5.5mm) is a necessary size for the injection molding process, which ensures that the molten material can fully fill the mold cavity, avoids the problem of material shortage or poor molding, improves the reliability of the production process, reduces the waste rate caused by molding failure, and significantly improves the yield. The range of the length C (5.5mm≤C≤6mm) ensures that there is enough contact area between the first connecting piece 31 and the first lampshade 1, significantly improving the strength and stability of the connection part, avoiding the problem of looseness or falling caused by insufficient connection, and the upper limit of the length C (6mm) avoids unnecessary material waste, reduces the warping or deformation problem that may be caused by excessive length, effectively reduces the production cost, and also reduces the amount of material used in the injection molding process, which meets the design concept of green environmental protection. In the present embodiment, the specific size of the length C of the first connecting piece 31 can be selected according to actual needs, which is not limited in the present embodiment.

[0038] Please refer toFigure 4 In an embodiment, the first connecting piece 31 comprises a first connecting portion 311 and a second connecting portion 312 connected to each other, the first connecting portion 311 is provided with a first connecting surface 3111 and a second connecting surface 3112 at one end away from the second connecting portion 312, and the width D of the second connecting portion 312 is defined as 1.6mm≤D≤2mm; specifically, the width D of the second connecting portion 312 in the first connecting piece 31 has significant advantages in enhancing the connection strength and optimizing the welding process, the lower limit of the width D (1.6mm) ensures that the second connecting portion 312 has sufficient mechanical strength, significantly improves the strength and stability of the connecting part, reduces the risk of fracture or deformation caused by the second connecting portion 312 being too thin, the upper limit of the width D (2mm) avoids unnecessary material waste, avoids the problem of complicating the welding process caused by the width being too thick, makes the welding operation more smooth, can realize high-quality welding effect, improves the welding quality and reliability, and reduces product defects caused by poor welding; in this embodiment, the specific size of the width D of the second connecting portion 312 can be selected according to actual needs, which is not limited in this embodiment.

[0039] Please refer to Figures 1 to 3 In an embodiment, the first connecting piece 31 is arranged in a spaced manner with the second lampshade 2, the first lampshade 1 comprises a first edge 14 and a second edge 15, the second lampshade 2 is connected with the second edge 15, and the first connecting piece 31 is connected with the first edge 14; specifically, the first connecting piece 31 and the second lampshade 2 are kept a certain interval to avoid direct contact or mutual interference, this design aims to optimize the overall layout of the lampshade structure 100, ensure the independence and functionality between components, the first edge 14 and the second edge 15 together enclose the edge of the first lampshade 1, the second lampshade 2 is connected with the second edge 15, the first connecting piece 31 is connected with the first edge 14, and the second connecting piece 32 is connected with the second lampshade 2, so that the first connecting piece 31 and the second connecting piece 32 can be arranged along the entire edge of the first lampshade 1 to form an integral third lampshade 3, the first connecting piece 31 is responsible for connecting with the lamp shell, and the second connecting piece 32 is responsible for fixing the position of the second lampshade 2, such design not only makes the connection of the first lampshade 1 and the lamp shell more stable, but also significantly improves the stability and reliability of the entire vehicle lamp, reduces the problem of looseness or falling caused by unstable connection.

[0040] Please refer to Figure 4In an embodiment, the third lampshade 3 is a one-piece molded product; specifically, the one-piece design of the third lampshade 3 eliminates the joints or gaps that may be caused by multi-component assembly in traditional split-type connection, so that the third lampshade 3 becomes a whole structure, significantly enhancing the mechanical strength and deformation resistance of the third lampshade 3, improving the stability and reliability of the whole structure, reducing the assembly process and the number of components, simplifying the assembly process, reducing the production complexity and labor cost, improving the production efficiency, reducing the rate of defective products caused by assembly errors, further reducing the overall production cost, ensuring uniform material distribution throughout the third lampshade 3, avoiding material performance differences that may be caused by multi-component assembly, improving the mechanical properties of the third lampshade 3, and making it better adapt to complex use environments.

[0041] Referring to Figure 1 and Figure 2 In an embodiment, the second lampshade 2 is a one-piece molded product; specifically, in this embodiment, the second lampshade 2 is entirely a transparent region 21, and the one-piece design of the second lampshade 2 eliminates the joints or gaps that may be caused by multi-component assembly in traditional split-type connection, so that the second lampshade 2 becomes a whole structure, significantly enhancing the mechanical strength and deformation resistance of the second lampshade 2, improving the stability and reliability of the whole structure, reducing the assembly process and the number of components, simplifying the assembly process, reducing the production complexity and labor cost, improving the production efficiency, reducing the rate of defective products caused by assembly errors, further reducing the overall production cost, and reducing the scattering or refraction loss in the light propagation path due to the elimination of joints or splicing marks, improving the light transmission efficiency of the transparent region 21, enhancing the illumination effect of the vehicle lamp, meeting the high optical performance requirements of the vehicle lamp, making the surface of the second lampshade 2 smoother and more beautiful, achieving a more simple and high-end appearance effect, meeting the market demand for high-quality vehicle lamps, and enhancing the market competitiveness of the product.

[0042] Referring to Figure 1 and Figure 2 Figure 1 Figure 2In an embodiment, the first lampshade 1 is a one-piece structure; specifically, the one-piece design of the first lampshade 1 eliminates the seams or gaps that may be caused by multi-component assembly in traditional split connection, so that the first lampshade 1 becomes a whole structure, significantly enhancing the mechanical strength and deformation resistance of the first lampshade 1, improving the stability and reliability of the whole structure, reducing the assembly process and the number of components, simplifying the assembly process, reducing the production complexity and labor cost, improving the production efficiency, reducing the defective rate caused by assembly errors, further reducing the overall production cost, and improving the sealing between the first lampshade 1 and other components due to the elimination of seams or splicing marks, effectively preventing external dust, moisture, etc. from entering the interior of the vehicle lamp, improving the protection level of the vehicle lamp, prolonging the service life of the vehicle lamp, and making the surface of the first lampshade 1 smoother and more beautiful, achieving a more simple and high-end appearance effect, meeting the market demand for high-quality vehicle lamps, and enhancing the market competitiveness of the product.

[0043] In the present embodiment, the lampshade structure 100 is designed to have wide applicability and can be used for various vehicle lamps of a vehicle, such as a rear combination lamp lampshade, a high-mounted stop lamp lampshade, etc. The shapes, sizes and colors of the first lampshade 1, the second lampshade 2 and the third lampshade 3 can be selected according to actual needs to meet specific functional requirements and aesthetic requirements; in the present embodiment, the lampshade structure 100 can be applied to a high-mounted stop lamp lampshade, the first lampshade 1 and the third lampshade 3 adopt a black design, and the second lampshade 2 is entirely red and transparent, and the high-mounted stop lamp lampshade can be formed by a three-color molding process, which not only enables independent molding of various colors and functional parts, but also reduces the shrinkage deformation problem caused by the one-piece molding of the lampshade structure 100. The molding steps of the high-mounted stop lamp lampshade are as follows:

[0044] Step 1: first, the red second lampshade 2 and the black third lampshade 3 are subjected to one-time injection molding, which ensures that the red transparent part of the second lampshade 2 seamlessly connects with the black part of the third lampshade 3, reduces the subsequent assembly steps, and improves the production efficiency;

[0045] Step 2: then, the black first lampshade 1 is subjected to injection molding, and in this step, the black first lampshade 1 is directly connected with the already molded red second lampshade 2 and black third lampshade 3, completing the injection molding of the entire lampshade structure 100.

[0046] By means of the step-by-step injection molding, the appearance defects of the lampshade structure 100 caused by shrinkage are effectively eliminated, each step of injection molding is targeted to specific color and functional part, thereby reducing the shrinkage deformation problem caused by one-time overall molding, and since the first lampshade 1, the second lampshade 2 and the third lampshade 3 are integrally formed, the step-by-step injection molding process significantly improves the overall surface quality and consistency of the lampshade structure 100, not only ensures seamless connection between parts, but also improves the appearance and durability of the finished product.

[0047] According to an embodiment of the present application, the first connecting piece 31 and the first lampshade 1, the second connecting piece 32 and the second lampshade 2, and the first lampshade 1 and the second lampshade 2 can also be installed and fixed by welding, screwing or clamping.

[0048] The utility model also proposes a car lamp, the car lamp includes lamp shell, light component (not shown in the figure) and lampshade structure 100, the specific structure of this lampshade structure 100 refers to the above embodiment, since the car lamp adopts all the technical solutions of the above all embodiments, at least has all the beneficial effects brought by the technical solutions of the above embodiments, here will not repeat one by one. Among them, the lamp shell and the first connecting piece 31 are sealingly connected to form an installation cavity (not shown in the figure) for accommodating the light component with the first lampshade 1 and the second lampshade 2, the light component is connected with the lamp shell, and the light component is used to emit light; specifically, the lamp shell and the first connecting piece 31 are sealingly connected, which ensures the waterproof and dustproof performance of the entire car lamp, effectively prevents external dust, moisture and the like from entering the interior of the car lamp, improves the protection level of the car lamp, prolongs the service life of the product, and the lamp shell and the first lampshade 1 and the second lampshade 2 jointly enclose a firm installation cavity, which provides all-round protection for the light component, the light component is connected with the lamp shell, which enhances the overall structural strength and impact resistance of the car lamp, and reduces the damage risk caused by external impact or vibration; in the embodiment, the lamp shell and the first connecting piece 31 can be sealingly connected by welding, sealing glue or sealing ring, which is not limited in the embodiment.

[0049] The above is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application, any equivalent structural transformation made by the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A lampshade structure, characterized by, The lampshade structure comprises: a first lampshade; a second lampshade, which is arranged at one end of the first lampshade, and has a transparent area capable of transmitting light; a third lampshade, which is independent of the first lampshade, and comprises a first connecting piece and a second connecting piece connected to each other, the first connecting piece being connected to the first lampshade, and the second connecting piece being connected to one end of the second lampshade away from the first lampshade, the first connecting piece being used for connecting to a lamp housing.

2. The lampshade structure of claim 1, wherein, The first connecting piece is provided with a first connecting surface and a second connecting surface connected to each other on one side thereof facing the first lampshade, the first lampshade is provided with a third connecting surface and a fourth connecting surface connected to each other on one side thereof facing the first connecting piece, the first connecting surface is connected to the third connecting surface, the second connecting surface is connected to the fourth connecting surface, and a first included angle is formed between the first connecting surface and the second connecting surface, the first included angle being defined as A, and 0° < A < 180°.

3. The lampshade structure of claim 2, wherein, The first lampshade is further provided with a shaped surface connected to one end of the third connecting surface away from the fourth connecting surface, a second included angle being formed between the shaped surface and the third connecting surface, the second included angle being defined as B, and 160° ≤ B ≤ 170°.

4. The lampshade structure of claim 2, wherein, The length of the first connecting piece is defined as C, and 5.5 mm ≤ C ≤ 6 mm.

5. The lampshade structure of claim 2, wherein, The first connecting piece comprises a first connecting portion and a second connecting portion connected to each other, the first connecting portion is provided with the first connecting surface and the second connecting surface on one end thereof away from the second connecting portion, and the width of the second connecting portion is defined as D, and 1.6 mm ≤ D ≤ 2 mm.

6. The lampshade structure of any one of claims 1 to 5, wherein, The first connecting piece is arranged in a spaced-apart manner with the second lampshade, the first lampshade comprises a first side and a second side, the second lampshade is connected to the second side, and the first connecting piece is connected to the first side.

7. The lampshade structure of any one of claims 1 to 5, wherein, The third lampshade is an integrally formed piece.

8. The lampshade structure of any one of claims 1 to 5, wherein, The second lampshade is an integrally formed piece.

9. The lampshade structure of any one of claims 1 to 5, wherein, The first lampshade is an integrally formed piece.

10. A vehicle lamp characterized by The vehicle lamp comprises a lamp housing, a light assembly, and the lampshade structure according to any one of claims 1 to 9, the lamp housing is sealingly connected to the first connecting piece, so that the lamp housing, the first lampshade, and the second lampshade enclose an installation cavity for accommodating the light assembly, the light assembly is connected to the lamp housing, and the light assembly is used for emitting the light.