Longbour lens ball

Abstract

The utility model discloses a Longbou lens ball, which comprises a plurality of spherical part shells and a plurality of V-shaped conical plastic parts, a spherical shell is formed among the spherical part shells, a plurality of V-shaped conical mounting ends are uniformly distributed on the surface of each spherical part shell, and each V-shaped conical mounting end is provided with a first inclined part and a second inclined part which face the inside of the spherical shell. A V-shaped cone mounting hole is formed between the first inclined part and the second inclined part; the V-shaped conical plastic part is inserted into the V-shaped conical mounting hole, and the conical top of the V-shaped conical plastic part is inserted into the V-shaped conical mounting hole. According to the luneberg lens ball disclosed by the utility model, linkage is carried out through the spherical part shell and the V-shaped conical plastic part, the 3D printed luneberg lens ball and the integrated structure of the spherical shell and the V-shaped conical plastic part can be separately subjected to injection molding, and batch production is carried out in an injection molding manner, so that the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of Luneburg lens ball technology, and specifically relates to a Luneburg lens ball. Background Technology

[0002] The Luneburg lens antenna sphere is based on the principle of the Luneburg lens. It is a dielectric lens with a non-uniform refractive index, and its refractive index distribution has spherical symmetry, meaning that the refractive index n(r) depends only on the distance from the center of the sphere. Electromagnetic waves incident from any direction will converge to a certain point on the sphere's surface. By placing a feed source on the surface of the sphere, a good gain effect can be generated, enabling directional and point-to-point signal radiation, as well as receiving signals from a specified direction.

[0003] The manufacturing processes of Luneburg lenses mainly include the following:

[0004] 1. By drilling holes into a sphere of homogeneous dielectric material, the local density of the material is altered. The dielectric constant of the material is controlled by the proportion of the material volume occupied by the holes, thus achieving a gradient distribution of the refractive index. The principle is relatively simple and feasible for the fabrication of some small or experimental Luneburg lenses. However, the drilling density and precision are difficult to control, the structure is complex, manufacturing is challenging, and it increases the weight of the Luneburg lens, making it unsuitable for mass production.

[0005] 2. Based on an intermediate spherical core, Luneburg lenses are constructed by layering and foaming the material layer by layer using physical or chemical foaming methods to form foam material layers with different dielectric constants. This method can obtain foam materials with stepped dielectric constants and is one of the commonly used manufacturing methods. However, it requires strict control of temperature and pressure, and is usually produced under high temperature and high pressure. The foam material has low thermal conductivity, which easily leads to uneven foaming. The process is complex, requires specialized equipment, has a low yield, and is costly.

[0006] 3. Based on the design model of the Luneburg lens, 3D printing technology is used to print liquid or powdered materials layer by layer according to the layered or unit cell structure design to construct the Luneburg lens sphere. This allows for complex structural designs, precise control over the lens's shape, size, and internal structure, and the manufacture of integrated Luneburg lenses, improving structural stability. It is suitable for producing small-sized, high-precision Luneburg lenses. Currently, 3D printing technology has limited material options, slow printing speed, high printing costs for large-sized Luneburg lenses, and complex post-printing cleaning and post-processing.

[0007] Therefore, further improvements will be made to address the aforementioned issues. Utility Model Content

[0008] The main purpose of this utility model is to provide a Luneburg lens ball, which, through the linkage of the spherical shell and the V-conical plastic part, can separately injection mold the 3D printed Luneburg lens ball, which is an integral structure of the spherical shell and the V-conical plastic part, and mass-produce it by injection molding, thereby improving production efficiency and reducing production costs.

[0009] To achieve the above objectives, this utility model provides a Luneburg lens sphere, comprising several spherical shell portions and several V-cone plastic parts, wherein:

[0010] The spherical shell sections together form a spherical shell (the spherical shell is composed of two or more spherical shell sections, which facilitates mass production using injection molding machines). The surfaces of the spherical shell sections are each distributed with several V-cone mounting ends. Each V-cone mounting end is provided with a first inclined member and a second inclined member facing the interior of the spherical shell. There is a gap between the first inclined member and the second inclined member (to facilitate the expansion when the V-cone plastic part is installed), and a V-cone mounting hole is formed between the first inclined member and the second inclined member.

[0011] The V-shaped conical plastic part is inserted into the V-conical mounting hole. The cone tip of the V-shaped plastic part is inserted into the V-conical mounting hole and faces the inside of the spherical shell. The cone bottom of the V-shaped plastic part is provided with a first extension and a second extension away from the cone tip. The first extension is provided with a first mounting groove on the side away from the second extension and the second extension is provided with a second mounting groove on the side away from the first extension. The first inclined member is installed in the first mounting groove and the second inclined member is installed in the second mounting groove.

[0012] As a further preferred technical solution of the above technical solution, the spherical partial shell is a first hemispherical shell and a second hemispherical shell, and the first hemispherical shell and the second hemispherical shell form a spherical shell (the spherical partial shell can also be four 1 / 4 spherical shells, which are then combined to form a spherical shell).

[0013] As a further preferred technical solution of the above technical solution, the first inclined member and the second inclined member are elastic (the V-shaped plastic part is easy to open when inserted, and easy to stabilize and limit after installation).

[0014] As a further preferred technical solution to the above technical solution, the spherical shell is injection molded.

[0015] As a further preferred technical solution to the above technical solution, the V-shaped plastic part is injection molded. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the spherical shell portion of this utility model.

[0017] Figure 2 This is a structural schematic diagram (sectional view) of the V-cone mounting end of this utility model.

[0018] Figure 3 This is a structural schematic diagram (front view) of the V-shaped plastic part of this utility model.

[0019] Figure 4 This is a schematic diagram (top view) of the V-shaped plastic part of this utility model.

[0020] Figure 5 This is an installation diagram of the V-shaped conical plastic part of this utility model.

[0021] The reference numerals include: 100, spherical partial housing; 110, V-cone mounting end; 111, first inclined member; 112, second inclined member; 113, V-cone mounting hole; 200, V-cone plastic part; 210, first extension; 211, first mounting groove; 220, second extension; 221, second mounting groove. Detailed Implementation

[0022] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0023] This utility model discloses a Luneburg lens sphere. The specific embodiments of the utility model are further described below with reference to preferred embodiments.

[0024] In the embodiments of this utility model, those skilled in the art will note that injection molding and the like involved in this utility model can be considered prior art.

[0025] Preferred embodiment.

[0026] like Figure 1-5 As shown, this utility model discloses a Luneburg lens sphere, comprising several spherical shell parts 100 and several V-shaped plastic parts 200, wherein:

[0027] The spherical partial shells 100 form a spherical shell (the spherical shell is composed of two or more spherical partial shells, which facilitates mass production using an injection molding machine). The surface of each spherical partial shell 100 is provided with a plurality of V-cone mounting ends 110. Each V-cone mounting end 110 is provided with a first inclined member 111 and a second inclined member 112 facing the interior of the spherical shell. There is a gap between the first inclined member 111 and the second inclined member 112 (to facilitate the opening when the V-cone plastic part is installed), and a V-cone mounting hole 113 is formed between the first inclined member 111 and the second inclined member 112.

[0028] The V-shaped conical plastic part 200 is inserted into the V-conical mounting hole 113. The cone apex of the V-shaped conical plastic part 200 is inserted into the V-conical mounting hole 113 and faces the interior of the spherical shell. The cone bottom of the V-shaped conical plastic part 200 is provided with a first extension 210 and a second extension 220 away from the cone apex. The first extension 210 is provided with a first mounting groove 211 on the side away from the second extension 220, and the second extension 220 is provided with a second mounting groove 221 on the side away from the first extension 210. When the V-shaped conical plastic part 200 is inserted into the V-conical mounting hole 113, the first inclined member 111 is installed in the first mounting groove 211, and the second inclined member 112 is installed in the second mounting groove 221.

[0029] Specifically, the spherical partial shell consists of a first hemispherical shell and a second hemispherical shell, which together form a spherical shell (the spherical partial shell can also be composed of four quarter-spherical shells, which are then combined to form a spherical shell).

[0030] More specifically, the first inclined member 111 and the second inclined member 112 are elastic (the V-shaped plastic part is easy to open when inserted and easy to be firmly fixed after installation).

[0031] Furthermore, the spherical portion of the shell 100 is injection molded.

[0032] Furthermore, the V-shaped plastic part 200 is injection molded.

[0033] It is worth mentioning that the technical features such as injection molding involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control methods and spatial arrangement of these technical features can be adopted by conventional choices in the field, and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0034] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A Luneburg lens sphere, characterized in that, It includes several spherical shell sections and several V-shaped conical plastic parts, wherein: The spherical shells together form a spherical shell. The surface of each spherical shell is provided with a plurality of V-cone mounting ends. Each V-cone mounting end is provided with a first inclined member and a second inclined member facing the interior of the spherical shell. There is a gap between the first inclined member and the second inclined member, and a V-cone mounting hole is formed between the first inclined member and the second inclined member. The V-shaped conical plastic part is inserted into the V-conical mounting hole. The cone tip of the V-shaped plastic part is inserted into the V-conical mounting hole and faces the inside of the spherical shell. The cone bottom of the V-shaped plastic part is provided with a first extension and a second extension away from the cone tip. The first extension is provided with a first mounting groove on the side away from the second extension and the second extension is provided with a second mounting groove on the side away from the first extension. The first inclined member is installed in the first mounting groove and the second inclined member is installed in the second mounting groove.

2. The Luneburg lens sphere according to claim 1, characterized in that, The spherical shell consists of a first hemispherical shell and a second hemispherical shell, which together form a spherical shell.

3. A Luneburg lens sphere according to claim 1, characterized in that, The first inclined member and the second inclined member are elastic.

4. A Luneburg lens sphere according to claim 1, characterized in that, The spherical portion of the shell is injection molded.

5. A Luneburg lens sphere according to claim 1, characterized in that, The V-shaped plastic part is injection molded.

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