CN216113813U

CN216113813U - Fixing structure of double-color car lamp shade

Info

Publication number: CN216113813U
Application number: CN202123059519.1U
Authority: CN
Inventors: 缪蕾; 巢磊; 曹文会
Original assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Current assignee: Changzhou Xingyu Automotive Lighting Systems Co Ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-03-22
Anticipated expiration: 2031-12-07

Abstract

The utility model discloses a fixing structure of a double-color car lamp shade, comprising: the first color layer is H1 in wall thickness, the second color layer is fixedly connected with the first color layer, the second color layer is H2 in wall thickness, the screw column is fixedly connected with the second color layer, the first color layer and the screw column are respectively located on two sides of the second color layer, and the ratio of the wall thickness H1 of the first color layer to the wall thickness H2 of the second color layer is H1: H2: 11: 4. The utility model can improve the qualification rate of injection products.

Description

Fixing structure of double-color car lamp shade

Technical Field

The utility model relates to the technical field of lamp shades, in particular to a fixing structure of a double-color car lamp shade.

Background

At present, the lamp shade of the car lamp is often designed in a double-color covering mode in consideration of the appearance and the strength of double-color products. In order to facilitate the installation between the lamp cover and other components, a screw post is usually disposed on the lamp cover. However, the wall thickness of the first color layer and the second color layer of the existing double-color covering structure is 1.5mm, the wall thickness of the joint of the lampshade and the root of the screw column is thicker than the wall thickness of other parts of the lampshade, when the double-color covering structure is molded by injection, the product surface is cooled easily due to the excessively thick wall thickness, but the inside of the double-color covering structure is not completely cooled, and at the moment, the over-thick part of the wall thickness easily generates the shrinking phenomenon, so that the quality is unqualified.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: in order to solve the technical problem that the production quality of the lampshade of the car lamp in the prior art is unqualified. The utility model provides a fixing structure of a lampshade of a bicolor car lamp, which can improve the qualification rate of product quality.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a fixing structure of a lamp cover of a bicolor vehicle lamp comprises: the first color layer is H1 in wall thickness, the second color layer is fixedly connected with the first color layer, the second color layer is H2 in wall thickness, the screw column is fixedly connected with the second color layer, the first color layer and the screw column are respectively located on two sides of the second color layer, and the ratio of the wall thickness H1 of the first color layer to the wall thickness H2 of the second color layer is H1: H2: 11: 4.

The fixing structure of the double-color car lamp shade of the utility model sets the ratio of the wall thickness of the first color layer to the wall thickness of the second color layer as 11:4, on the one hand, can improve the shrivelled phenomenon of screw post and the second colour layer junction, on the other hand, can improve the intensity on first colour layer, improves the qualification rate of whole product.

Further, the sum of the wall thickness H1 of the first color layer and the wall thickness H2 of the second color layer is 3 mm.

Further, the wall thickness H1 of the first color layer is 2.2mm, and the wall thickness H2 of the second color layer is 0.8 mm.

Furthermore, the included angle between the screw column and the plane where the second color layer is located is alpha, and alpha is an acute angle.

Further, the outer diameter of the screw column is 8 mm.

Furthermore, a screw mounting hole is formed in the screw column.

Furthermore, the first color layer and the second color layer are both made of plastic materials.

Further, the first color layer is transparent, and the second color layer is black.

The utility model has the advantages that the utility model improves the wall thickness of the first color layer and the second color layer, and the ratio of H1: h2 ═ 11:4, on the one hand for the second chromatograph can not produce the shrivelled phenomenon with the junction of screw post, on the other hand for first chromatograph intensity increases, and when moulding plastics the second chromatograph, first chromatograph also can not be produced the deformation by the high temperature liquid melting. According to the utility model, through optimizing the product structure, the product percent of pass is increased from original 0% to 100%, the waste of raw materials is reduced, and the effective efficiency and the production benefit can be improved.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

Fig. 1 is a sectional view of a fixing structure of a cover for a bicolor lamp according to the present invention.

In the figure: 1. first chromatograph, 2, second chromatograph, 3, screw post, 31, screw mounting hole.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, a fixing structure of a lamp cover for a bicolor vehicle lamp includes: a first color layer 1, wherein the wall thickness of the first color layer 1 is H1; a second color layer 2, wherein the second color layer 2 is fixedly connected with the first color layer 1 (for example, integrally injection molding), and the wall thickness of the second color layer 2 is H2; the first color layer 1 and the screw columns 3 are respectively positioned on two sides of the second color layer 2; the ratio of the wall thickness H1 of the first color layer 1 to the wall thickness H2 of the second color layer 2 is H1: H2: 11: 4. When the fixed structure is injection-molded, the first color layer 1 is firstly injection-molded in a mold, and after the first color layer 1 is cooled and molded, the second color layer 2 is injection-molded, and at the moment, the second color layer 2 covers the surface of the first color layer 1. The structure of the screw cylinder 3 is also formed at the same time when the second color layer 2 is injection molded, which can be realized by the shape of an injection mold.

Since the liquid used in the injection molding is melted at a high temperature, when the second color layer 2 is injection molded, if the wall thickness of the second color layer 2 is too thick, the cooling time is longer, and the wall thickness is thicker and slower at the connection with the screw post 3 (see the dotted circle in fig. 1). When the outer layer has cooled, the interior may not be completely cooled, the stress of the external cooling layer which shrinks during the internal cooling cannot be resisted, the shrinkage phenomenon can be generated at the joint of the screw column 3 and the second color layer 2 (the shrinkage of the injection molding part is the defect caused by cooling shrinkage and too short dwell time in the injection molding process), the deformation is generated, and the product quality is unqualified. Therefore, the wall thickness at the junction of the second color layer 2 and the screw post 3 needs to be reduced. Meanwhile, if the wall thickness of the first color layer 1 is too thin, when the second color layer 2 is injected, the high temperature liquid is not completely cooled down, and the surface of the first color layer 1 is melted and softened, so that the first color layer 1 is deformed. Therefore, the thickness of the first color layer 1 and the second color layer needs to be designed so that the first color layer 1 can be prevented from being deformed while preventing the occurrence of the collapse phenomenon. In the present embodiment, the ratio between the wall thickness H1 of the first color layer 1 and the wall thickness H2 of the second color layer 2 is set to H1: H2: 11: 4.

In the present exemplary embodiment, the sum of the wall thickness H1 of the first color layer 1 and the wall thickness H2 of the second color layer 2 is still 3mm, i.e., H1+ H2 is 3 mm. The total wall thickness after the improvement is consistent with that before, and the material consumption is not increased or reduced additionally. If the total wall thickness is too thin, the overall strength of the lamp housing may be insufficient and the lamp housing may be easily damaged, and if the total wall thickness is too thick, the cost may be increased.

In this example, the thickness H1 of the first color layer 1 was 2.2mm, and the thickness H2 of the second color layer 2 was 0.8 mm. Compared with the prior art, the wall thickness of the second color layer 2 is reduced to 0.8mm from the original 1.5mm, and the wall thickness of the first color layer 1 is increased to 2.2mm from the original 1.5 mm. After the wall thickness of the second color layer 2 is thinned, the wall thickness of the joint of the second color layer 2 and the screw column 3 can be thinned, and the phenomenon of shriveling is prevented. After the thickness of the first color layer 1 is increased, the strength of the first color layer 1 can be improved, and the first color layer 1 is prevented from being melted and softened by the second color layer 2, resulting in deformation. The first color layer 1 and the second color layer 2 are both made of plastic material, such as PC material. The first color layer 1 is transparent, the second color layer 2 is black, the first color layer 1 is mainly arranged in the middle of the lampshade, and the transparent color can enable light to irradiate; and the second colour layer mainly is set up at first colour layer edge, has partial overlap with first colour layer, constitutes the fixed knot structure of this embodiment promptly, and black can play the effect of sheltering from, shelters from some structures and parts inside the car light. In the present embodiment, the screw post 3 is used for connection with a vehicle lamp main body structure.

In the present embodiment, the outer diameter of the screw post 3 is 8mm, and a screw mounting hole 31 is provided in the screw post 3, and the screw mounting hole 31 is suitable for screws conforming to national standards ST3.9 and ST 4.2. The included angle between the screw post 3 and the plane of the second color layer 2 is α, and α may be an acute angle, but is not limited thereto, and may also be other angles, and may be specifically designed according to the actual situation.

In summary, the fixing structure of the present invention, through the improvement of the wall thickness of the first color layer 1 and the second color layer 2, and H1: h2 ═ 11:4, on the one hand for the junction of second chromatograph 2 and screw post 3 can not produce the shriveling phenomenon, on the other hand for first colour layer intensity increases, and when moulding plastics the second colour layer, first colour layer also can not be produced by the high temperature liquid melting and warp. According to the utility model, through optimizing the product structure, the product percent of pass is increased from original 0% to 100%, the waste of raw materials is reduced, and the effective efficiency and the production benefit can be improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined by the scope of the claims.

Claims

1. The utility model provides a fixed knot of bicolor car light lamp shade constructs which characterized in that includes:

a first color layer (1), the wall thickness of the first color layer (1) being H1,

a second color layer (2), wherein the second color layer (2) is fixedly connected with the first color layer (1), the wall thickness of the second color layer (2) is H2,

the screw column (3) is fixedly connected with the second color layer (2), the first color layer (1) and the screw column (3) are respectively positioned at two sides of the second color layer (2),

wherein the ratio of the wall thickness H1 of the first color layer (1) to the wall thickness H2 of the second color layer (2) is H1: H2: 11: 4.

2. The fixing structure of a cover for a two-color vehicular lamp according to claim 1, wherein the sum of the wall thickness H1 of the first color layer (1) and the wall thickness H2 of the second color layer (2) is 3 mm.

3. The fixing structure of the cover for the bicolor vehicular lamp according to claim 2, wherein the wall thickness H1 of the first colored layer (1) is 2.2mm, and the wall thickness H2 of the second colored layer (2) is 0.8 mm.

4. The fixing structure of the lampshade of the bicolor car lamp according to claim 1, characterized in that the included angle between the screw column (3) and the plane of the second color layer (2) is alpha, and alpha is an acute angle.

5. The fixing structure of the cover for the bicolor vehicular lamp according to claim 1, wherein the outer diameter of the screw post (3) is 8 mm.

6. The fixing structure of the cover for the bicolor vehicular lamp according to claim 4, wherein the screw post (3) is provided with a screw mounting hole (31) therein.

7. The fixing structure of the lampshade of the bicolor car lamp according to claim 1, characterized in that the first colored layer (1) and the second colored layer (2) are made of plastic materials.

8. The fixing structure of a cover for a bicolor vehicular lamp according to claim 1, wherein the first colored layer (1) is a transparent color and the second colored layer (2) is a black color.