Plastic curved surface reflector with chaste tree twig structures on periphery

Abstract

The utility model relates to a plastic curved-surface reflecting mirror with thorn strip structures on the periphery, which comprises a curved-surface reflecting mirror, thorn strips are arranged on the periphery of the curved-surface reflecting mirror, and the thorn strips and the curved-surface reflecting mirror are integrally formed. It can be guaranteed that the surface type of the curved reflection mirror does not bend, and the capacity of adapting to different environments is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic curved reflectors, and in particular relates to a plastic curved reflector with a thorn structure on all sides. Background Art

[0002] With the emergence of new Chinese car manufacturers in recent years, the driving experience of these new car manufacturers has become more and more diverse. As one of the important components of the driver experience, the head-up display is used. The imaging principle of the head-up display is as follows Figure 1 As shown, the display transmitter 1 performs optical reflection through the small curved mirror 3 and the large curved mirror 4, and projects the image of the display transmitter 1 onto the windshield 6, so that the optical path 2, i.e., the imaging route, can be seen. The driver 5 judges the driving road conditions by observing the imaging of the windshield 6, and does not need to look down at the speed, time and other information presented on the instrument panel, thereby improving driving safety. The display transmitter 1 can emit the speed, time, rotation speed and other information of the traditional instrument panel, and can also integrate navigation and other information.

[0003] like Figure 1 As shown, the curved reflectors involved in imaging are a large curved mirror 4 and a small curved mirror 3. In order to minimize the manufacturing cost, conventional curved reflectors that are currently in mass production are usually used. The raw materials for manufacturing are plastic particles. The molding from plastic particles to curved mirrors is performed by injection molding. In order to make the curved reflectors better injection moldable, the structure of most curved mirrors is a common uniform wall thickness structure, such as Figure 2 shown.

[0004] This type of curved reflector with uniform structure will be affected by changes in ambient temperature during its later use. The curved reflector will shrink at low temperatures or stretch at high temperatures. The shrinkage or expansion will cause the PV optical index of the plastic curved reflector to increase or decrease. The increase or decrease in the index will cause the plastic curved reflector to undergo micron-level bending changes. The bending change will cause the driver to observe the image at different distances, affecting the driving experience. Utility Model Content

[0005] In order to solve the problem that the existing plastic curved reflector is easily affected by changes in ambient temperature and will undergo micron-level bending changes, which will cause the driver to observe images at different distances, affecting the driving experience, the utility model provides a plastic curved reflector with a thorny structure on all sides, which can ensure that the surface shape of the curved reflector does not undergo bending changes and has a strong ability to adapt to different environments.

[0006] The technical solution of the utility model is as follows:

[0007] A plastic curved reflector with a thorn structure on all sides comprises a curved reflector, wherein the curved reflector has thorns on all sides, and the thorns are integrally formed with the curved reflector.

[0008] Preferably, the width of the vitex is 1.2 mm-3 mm.

[0009] Preferably, the height of the vitex is 5 mm.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model adopts a plastic curved reflector with a rattan structure on all sides. Since the internal stress of the rattan is tightened on all sides, the surface shape of the plastic curved reflector will not change, and the problem of traditional reflectors having imaging biased to the near and far side in extreme weather such as high and low temperatures is successfully solved. It can ensure that the image seen by the driver is the same size at any time and in any driving environment, thereby reducing the driver's driving fatigue, improving driving safety, and providing a good driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the imaging principle of the head-up display;

[0013] Figure 2 It is a schematic diagram of the structure of a plastic curved reflector;

[0014] Figure 3 It is a schematic diagram of the overall structure of the utility model; DETAILED DESCRIPTION

[0015] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] See also Figure 3 A plastic curved reflector with a thorn structure around it includes a curved reflector 7, wherein the curved reflector 7 has thorns 8 around it, and the thorns 8 and the curved reflector 7 are formed integrally.

[0017] Vitex has a stabilizing and reinforcing effect, so that the optical index (PV) will not fluctuate, the stress is uniform, and it will not change with the ambient temperature.

[0018] In an embodiment of the present invention, the width of the bramble is 1.2 mm-3 mm.

[0019] In a preferred embodiment of the present invention, the height of the vitex is 5 mm, but not limited thereto.

[0020] After the plastic curved reflector is injection molded, it is also necessary to coat the front side with a reflective film. The coating method is not limited to evaporation coating, sputtering coating, spray coating, etc. The purpose is to reflect the image emitted by the display transmitter on the imaging surface.

[0021] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A plastic curved reflector with a thorn structure around it, characterized in that: The invention comprises a curved reflector, wherein the curved reflector is provided with thorns around the curved reflector, and the thorns are integrally formed with the curved reflector.

2. The plastic curved reflector with a thorn structure around it according to claim 1, characterized in that: The width of the vitex is 1.2mm-3mm.

3. The plastic curved reflector with a thorn structure around it according to claim 1, characterized in that: The height of the vitex is 5 mm.

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