Injection molding lap joint structure of emulsion material and opaque material capable of being lightened without dark edge
By setting the sealing ribs and adjusting their vertical slope in the injection molded overlap structure between the emulsified material and the opaque material, the brightness uneven problem caused by thickness differences in the prior art is solved, and the high brightness of the edges of the emulsified material is achieved Consistent with overall brightness.
Patent Information
- Application Number
- CN202421038577.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-13
AI Technical Summary
In the prior art, the injection molded overlap structure of emulsified materials and opaque materials has different thicknesses of the sealant structure and the thickness of the emulsified materials, resulting in uneven brightness, forming visual black edges.
The sealing ribs are arranged at the overlap between the emulsified inner matching and the opaque trim ring to ensure that the ratio of the wall thickness of the emulsified inner matching to the wall thickness of the sealing rib is greater than or equal to 0.7, and the vertical edges of the overlap between the sealing rib and the emulsified inner matching are oblique. The degree is greater than or equal to 45°, and the vertical slope of the overlap between the opaque trim and the emulsified inner matching is greater than or equal to 75°, so as to reduce thickness differences and improve light transmission and light conductivity.
High brightness of the edges of emulsified materials is achieved, which eliminates visual black edges and improves the consistency and service life of the overall brightness.
Smart Images
Figure CN222271916U_ABST
Abstract
Description
Technical field:
[0001] The utility model relates to the technical field of vehicle lamps, in particular to an injection-molded overlap structure of an emulsified material and an opaque material which can be lit without dark edges. Background technology:
[0002] As people's requirements for automobile appearance are getting higher and higher, more and more automobile lamps use emulsified materials as the internal light distribution mirror of the lamps to achieve the effect of uniform lighting. In actual application, due to space limitations and in order to reduce the installation structure, emulsified materials and opaque materials are mostly used for multi-color injection molding. Due to the requirements of the mold injection molding structure, a circle of sealing structure needs to be set at the boundary of the two materials. However, due to the difference in thickness between the sealing structure and the surrounding emulsified material thickness (such as Figure 1 and Figure 2 As shown in the figure), there is a brightness difference, which visually forms a black edge (as shown in the figure). Figure 3 shown).
[0003] In view of this, the inventor proposes the following technical solution. Utility model content:
[0004] The utility model aims to overcome the shortcomings of the prior art and provide an injection-molded overlap structure of an emulsified material and an opaque material which can be lit without dark edges.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: an injection-molded overlap structure of an emulsified material and an opaque material that is lit without dark edges, comprising: an emulsified inner fitting, an opaque decorative ring injection-molded on the periphery of the emulsified inner fitting, and a sealing rib arranged at the boundary between the emulsified inner fitting and the opaque decorative ring, the ratio of the wall thickness of the emulsified inner fitting to the wall thickness of the sealing rib is greater than or equal to 0.7, and the vertical edge slope of the transition surface at the overlap between the sealing rib and the emulsified inner fitting is greater than or equal to 45°.
[0006] Furthermore, in the above technical solution, the vertical edge slope at the overlap between the opaque decorative ring and the emulsified inner fitting is greater than or equal to 75°.
[0007] Furthermore, in the above technical solution, the minimum wall thickness of the opaque decorative ring is 1.2 mm, and the main body wall thickness of the opaque decorative ring is 2.0 mm.
[0008] Furthermore, in the above technical solution, the front wall thickness of the emulsifying inner part is 2.8 mm, the minimum wall thickness of the sealing rib is 1.6 mm, and the main wall thickness of the sealing rib is 2.0 mm.
[0009] Furthermore, in the above technical solution, the combined wall thickness of the opaque decorative ring and the sealing rib is 4 mm.
[0010] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: in the utility model, the difference between the front wall thickness of the emulsified inner fitting and the wall thickness of the sealing rib is reduced to a ratio of more than ., and the vertical edge inclination of the sealing rib is increased to 45°, thereby making the wall thickness at the edge of the emulsified inner fitting consistent with the middle as much as possible, and at the same time, the light transmittance and light guiding properties of the emulsified inner fitting and the sealing rib can be utilized to the greatest extent to guide the light to the edge of the emulsified inner fitting, so that the edge of the emulsified inner fitting also remains bright, and no visual black edge exists. Description of the drawings:
[0011] Figure 1 It is a prior art cross-sectional view of the utility model;
[0012] Figure 2 It is a schematic diagram of the prior art structure of the utility model;
[0013] Figure 3 It is a prior art effect diagram of the utility model;
[0014] Figure 4 This is a schematic diagram of the structure of the utility model Figure 1 ;
[0015] Figure 5 This is a schematic diagram of the structure of the utility model Figure 2 ;
[0016] Figure 6 It is a schematic diagram comparing the effects of the utility model with those of the prior art. Specific implementation method:
[0017] The utility model is further described below in conjunction with specific embodiments and drawings.
[0018] See Figures 1 to 6 As shown, an injection-molded overlap structure of an emulsified material and an opaque material that is lit without dark edges comprises: an emulsified inner fitting 1, an opaque decorative ring 2 injection-molded on the periphery of the emulsified inner fitting 1, and a sealing rib 3 disposed at the boundary between the emulsified inner fitting 1 and the opaque decorative ring 2, wherein the ratio of the wall thickness of the emulsified inner fitting 1 to the wall thickness of the sealing rib 3 is greater than or equal to 0.7, and the vertical edge slope of the transition surface at the overlap between the sealing rib 3 and the emulsified inner fitting 1 is greater than or equal to 45°. By reducing the difference between the front wall thickness of the emulsified inner fitting 1 and the wall thickness of the sealing rib 3 to a ratio of more than 0.7, and increasing the vertical edge slope of the sealing rib 3 to 45°, the wall thickness at the edge of the emulsified inner fitting can be made consistent with the middle as much as possible, and at the same time, the light transmission and light guiding properties of the emulsified inner fitting 1 and the sealing rib 3 can be utilized to the greatest extent to guide the light to the edge of the emulsified inner fitting 1, so that the edge of the emulsified inner fitting 1 also remains bright, and thus there will be no visual black edges.
[0019] The vertical edge slope of the overlapped portion of the opaque decorative ring 2 and the emulsified inner fitting 1 is greater than or equal to 75°. In this embodiment, the vertical edge slope of the sealing rib 3 is 45°, and the vertical edge slope of the overlapped portion of the opaque decorative ring 2 is 75°. Setting the vertical edge slope of the overlapped portion of the opaque decorative ring 2 and the emulsified inner fitting 1 to 75° can not only prevent stress concentration caused by right-angle transition, but also enable the emulsified inner fitting 1 to stretch to both sides, thereby improving the light-guiding property of the emulsified inner fitting 1 and further reducing the generation of black edges.
[0020] The minimum wall thickness of the opaque decorative ring 2 is 1.2 mm, and the main wall thickness of the opaque decorative ring 2 is 2.0 mm. Two inclined surfaces are formed on the side where the opaque decorative ring 2 overlaps with the emulsified inner fitting 1, wherein the first inclined surface contacts the emulsified inner fitting 1 at 75°, and the second inclined surface contacts the sealing rib 3 immediately after the first inclined surface, and the inclination is greater than 75°. The use of these two inclined surfaces can not only facilitate the docking of the emulsified inner fitting 1 and the opaque decorative ring 2, improve the fluidity of the material at these positions during injection molding, and ensure full injection molding of the parts, but also avoid stress concentration, prevent cracks from occurring at the docking during use, and have the effect of increasing the service life.
[0021] The front wall thickness of the emulsifying inner fitting 1 is 2.8 mm, the minimum wall thickness of the sealing rib 3 is 1.6 mm, and the main wall thickness of the sealing rib 3 is 2.0 mm. The superimposed wall thickness of the opaque decorative ring 2 and the sealing rib 3 is 4 mm.
[0022] exist Figure 6 In the figure, the left side is a schematic diagram of the prior art structure after lighting up, and it can be found that there are obvious black edges; while the right side is a schematic diagram of the structure of the utility model after lighting up, and it can be found that the black edges disappear and the overall brightness is consistent.
[0023] In summary, in the utility model, the light transmission and light guiding effect of the material is improved by reducing the thickness difference between the emulsified inner fitting 1 and the sealing rib 3, and the wall thickness at the edge of the emulsified inner fitting is made consistent with that in the middle by increasing the vertical edge slope of the sealing rib 3. At the same time, the light is also transmitted to the edge of the emulsified inner fitting 1, and the edge is illuminated synchronously, so that there is no dark edge in the structure.
[0024] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.
Claims
1. An injection-molded overlap structure of an emulsified material and an opaque material that is lit without dark edges, comprising: An emulsified inner fitting (1), an opaque decorative ring (2) injection-molded on the periphery of the emulsified inner fitting (1), and a sealing rib (3) arranged at the boundary between the emulsified inner fitting (1) and the opaque decorative ring (2), characterized in that: The ratio of the wall thickness of the emulsified inner fitting (1) to the wall thickness of the sealing rib (3) is greater than or equal to 0.7, and the vertical edge slope of the transition surface at the overlap between the sealing rib (3) and the emulsified inner fitting (1) is greater than or equal to 45°.
2. The injection-molded overlap structure of an emulsified material and an opaque material that is lit without dark edges according to claim 1, characterized in that: The vertical edge slope at the overlap between the opaque decorative ring (2) and the emulsified inner part (1) is greater than or equal to 75°.
3. The injection-molded overlap structure of an emulsified material and an opaque material that is lit without dark edges according to claim 1, characterized in that: The minimum wall thickness of the opaque decorative ring (2) is 1.2 mm, and the main body wall thickness of the opaque decorative ring (2) is 2.0 mm.
4. The injection-molded overlap structure of an emulsified material and an opaque material that is lit without dark edges according to claim 1, characterized in that: The front wall thickness of the emulsifying inner part (1) is 2.8 mm, the minimum wall thickness of the sealing rib (3) is 1.6 mm, and the main body wall thickness of the sealing rib (3) is 2.0 mm.
5. The injection-molded overlap structure of an emulsified material and an opaque material that is lit without dark edges according to any one of claims 1 to 4, characterized in that: The superimposed wall thickness of the opaque decorative ring (2) and the sealing rib (3) is 4 mm.