Plastic-clad aluminum lamp holder with aluminum cup

Abstract

The utility model discloses a plastic-clad aluminum lamp holder with an aluminum cup, the aluminum cup of the design mainly comprises a circular truncated cone-shaped or cylindrical cup wall and a bending surface integrally formed on the upper edge, the design is more beneficial to the formation of the aluminum cup by adopting a single punching die forming technology, and an aluminum material with a certain width does not need to be reserved at the periphery of a circular die; compared with a traditional continuous die for manufacturing arc-shaped aluminum cups with complex shapes, the die cost and the material cost are reduced through the design, the production process is simplified, and the production efficiency is improved; the steps are arranged on the forming edges of the aluminum cup and the radiator made of the plastic material, so that tight forming between the aluminum cup and the radiator can be ensured, glue leakage in the forming process is prevented, the structural stability of the lamp is enhanced, the appearance quality of the lamp is improved, meanwhile, the sealing performance of the lamp is improved, and the influence of the external environment on the interior of the lamp is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting fixtures, in particular to a plastic-coated aluminum lamp holder with an aluminum cup. Background Art

[0002] In current lighting devices, LED lamps are widely used due to their high efficiency, energy saving, long lifespan and other characteristics. Among them, as a common component of LED lamps, the plastic-coated aluminum lamp holder not only needs to ensure good light efficiency, but also has excellent heat dissipation performance to ensure that the working temperature of the LED chip is maintained within a reasonable range, thereby extending the service life of the lamp. As one of the key components of the plastic-coated aluminum lamp holder, the structural design of the aluminum cup directly affects the overall performance of the lamp.

[0003] Traditional aluminum cup designs usually only consider basic installation requirements and simple heat dissipation functions. In order to process an arc-shaped cup wall (such as the traditional cup wall 6 shown in Figure 7 ), the traditional continuous die manufacturing process is usually used, and a certain width of aluminum material 800 needs to be reserved on both sides (such as Figure 8 ), and then the required arc-shaped cup wall is formed through repeated stamping. There are certain limitations in terms of mold cost, efficiency, and production flexibility.

[0004] In view of the above problems, there is an urgent need in the market for a new aluminum cup structure that optimizes the production process and enhances the installation stability. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a plastic-coated aluminum lamp holder with an aluminum cup, which has the characteristics of simple molding and stable structure.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A plastic-coated aluminum lamp holder with an aluminum cup, characterized in that it includes a lamp head for installation and fixation, a radiator installed below the lamp head, and an aluminum cup arranged inside the radiator. The radiator includes an inner side wall in a cylindrical or frustum shape, and a circular top surface is formed on the upper side of the inner side wall. The aluminum cup includes a cup wall that can be attached to and molded with the inner side wall, and a bending surface that is integrally formed on the upper side of the cup wall and can be attached to the circular top surface. The bending surface is a plane or an inclined plane.

[0008] Convex strips in the vertical direction are uniformly arranged on the inner surface of the cup wall, and a step is formed at the lower edge of the cup wall.

[0009] Each convex strip includes a first inclined surface and a second inclined surface, and a fillet surface is arranged between the first inclined surface and the second inclined surface.

[0010] The first inclined surface and the second inclined surface of each convex strip are symmetric about the axis passing through the center of the cup wall, and the included angle between the first inclined surface and the second inclined surface is β, and β = 60°.

[0011] A step is formed at the inner lower edge of the cup wall, and the step includes a horizontal first step surface and a second step surface connected below the first step surface.

[0012] The second step surface includes an inclined table surface and a horizontal plane, and an included angle γ is formed between the inclined table surface and the horizontal plane, and 90° < γ < 180°.

[0013] An included angle α is formed between the cup wall and the horizontal plane, and 90° ≤ α < 100°.

[0014] The plastic-coated aluminum lamp holder further includes a waterproof decorative member installed under the lamp head and covering the radiator, and a lamp shade arranged under the aluminum cup.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. Compared with the cup wall of the traditional aluminum cup, the aluminum cup of this design mainly includes a cup wall in the shape of a frustum of a cone or a cylinder and a bent surface integrally formed on the upper side. This design is more conducive to the forming of the aluminum cup using a single punching die forming technology, and there is no need to reserve a certain width of aluminum material around the round die (such as Figure 9 ). Compared with the traditional continuous die for manufacturing an arc-shaped aluminum cup with a more complex shape (such as Figure 7 ), this design not only reduces the cost of the die and the material cost, but also simplifies the production process and improves the production efficiency; in addition, the single punching die forming process also improves the production flexibility of the product, and the production parameters can be adjusted according to different requirements, making it more adaptable to the changing market demands.

[0017] 2. By setting a step at the forming edge between the aluminum cup and the plastic radiator, it can ensure the tight forming between the aluminum cup and the radiator, prevent the glue from running during the forming process, enhance the structural stability of the lamp, improve the appearance quality of the lamp, and at the same time contribute to improving the sealing performance of the lamp and reducing the influence of the external environment on the interior of the lamp.

[0018] 3. By arranging convex strips on the inner surface of the cup wall of the aluminum cup, the surface area of the aluminum cup is increased, thereby significantly improving the heat dissipation efficiency. This design enables heat to be more effectively conducted from the LED chip to the aluminum cup and accelerates the heat dissipation by increasing the contact area, which helps to keep the working temperature of the LED chip within a reasonable range and thus extends the service life of the lamp.

[0019] 4. A fillet surface is provided between the two inclined surfaces of each convex strip, and the two inclined surfaces are symmetric about the axis passing through the center of the cup wall, so that the heat dissipation amount on each convex strip is more uniform, achieving the best heat conduction effect. These detailed designs further improve the heat dissipation capacity of the aluminum cup, and at the same time reduce the stress concentration problem that may occur during the production process, increasing the service life. Brief Description of the Drawings

[0020] Figure 1 is an exploded structural schematic diagram of the plastic-coated aluminum lamp holder;

[0021] Figure 2 is a cross-sectional view of the plastic-coated aluminum lamp holder;

[0022] Figure 3 is a structural schematic diagram of the radiator;

[0023] Figure 4 is a structural schematic diagram of the aluminum cup;

[0024] Figure 5 is Figure 2 a partial enlarged view of "A" in

[0025] Figure 6 is Figure 4 a partial enlarged view of "B" in

[0026] Figure 7 is a structural schematic diagram of a traditional aluminum cup;

[0027] Figure 8 is a schematic diagram of the aluminum material for manufacturing the aluminum cup by a progressive die;

[0028] Figure 9 is a schematic diagram of the aluminum material for manufacturing the aluminum cup by a single stamping die. Detailed Embodiment

[0029] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present utility model clearer, the technical solutions of the present utility model will be further described below with reference to the accompanying drawings and through specific embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the present utility model are shown in the drawings, rather than all of them.

[0030] Refer to Figures 1 - 4, the present utility model proposes a plastic-wrapped aluminum lamp holder with an aluminum cup, which includes a lamp head 5 for installation and fixation, a radiator 2 made of plastic installed below the lamp head 5, and an aluminum cup 1 arranged inside the radiator 2. The radiator 2 includes an inner side wall 20 in a cylindrical or frustum shape, and an annular top surface 21 is formed on the upper side of the inner side wall 20. The aluminum cup 1 includes a cup wall 11 that can fit with the inner side wall 20, and a bending surface 10 that can fit with the annular top surface 21 is integrally formed on the upper side of the cup wall 11. The bending surface 10 is a flat surface or an inclined surface.

[0031] Compared with the cup wall of the traditional aluminum cup, the aluminum cup 1 of this design mainly includes a cup wall 11 in a frustum shape or a cylindrical shape and a bending surface 10 integrally formed on the upper side. This design is more conducive to the aluminum cup 1 being formed by a single punching die forming technology, and there is no need to reserve a certain width of aluminum material 800 (refer to Figure 9 ) around the round die 801. Compared with the traditional continuous die for manufacturing an arc-shaped aluminum cup with a relatively complex shape (refer to Figure 7 ), this design not only reduces the mold cost and material cost, but also simplifies the production process and improves the production efficiency. In addition, the single punching die forming process also improves the production flexibility of the product, and the production parameters can be adjusted according to different requirements, making it more adaptable to the changing market demands.

[0032] Referring to Figure 4 , convex strips 110 are evenly arranged on the inner surface of the cup wall 11 in the up and down direction, and a step 12 is formed at the lower edge of the cup wall 11.

[0033] Furthermore, by arranging convex strips 110 on the inner surface of the cup wall 11 of the aluminum cup 1, the surface area of the aluminum cup 1 is increased, thereby significantly improving the heat dissipation efficiency. This design enables heat to be more effectively conducted from the LED chip to the aluminum cup 1, and the heat dissipation is accelerated by increasing the contact area, which helps to keep the working temperature of the LED chip within a reasonable range, and thus extends the service life of the lamp.

[0034] Referring to Figure 6 , each convex strip 110 includes a first inclined surface 1101 and a second inclined surface 1102, and a fillet surface 1100 is arranged between the first inclined surface 1101 and the second inclined surface 1102.

[0035] Referring to Figure 6 , the first inclined surface 1101 and the second inclined surface 1102 of each convex strip 110 are symmetric about the axis passing through the center of the circle of the cup wall 11, and the included angle between the first inclined surface 1101 and the second inclined surface 1102 is β, and β = 60°.

[0036] Furthermore, a rounded surface 1100 is provided between the two inclined surfaces of each convex strip 110, and the two inclined surfaces are symmetric about the axis passing through the center of the cup wall 11, so that the heat dissipation amount on each convex strip 110 is more uniform, achieving the best heat conduction effect. The included angle between the first inclined surface 1101 and the second inclined surface 1102 is 60°. These detailed designs not only further improve the heat dissipation capacity of the aluminum cup 1, but also reduce the stress concentration problem that may occur during the production process, increasing the service life.

[0037] Referring to Figure 4 or Figure 5 , a step 12 is formed at the inner lower edge of the cup wall 11, and the step includes a horizontal first step surface 120 and a second step surface 121 connected below the first step surface 120.

[0038] Furthermore, a step 12 is provided at the forming edge of the aluminum cup 1 and the radiator 2, effectively preventing the phenomenon of glue running during the forming process. By precisely controlling the size and shape of the step, it can ensure the tight forming between the aluminum cup 1 and the radiator 2, which not only enhances the structural stability of the lamp, but also improves the appearance quality of the lamp. At the same time, it also helps to improve the sealing performance of the lamp and reduce the influence of the external environment on the inside of the lamp.

[0039] Preferably, referring to Figure 2 and Figure 5 , the second step surface 121 includes a bending surface 1210 and a horizontal surface 1211, and an included angle γ is formed between the bending surface 1210 and the horizontal surface 1211, where 90° < γ < 180°. During the injection molding process of the radiator 2 and the aluminum cup 1, it enables the injection liquid to better fit and fill the outer wall of the aluminum cup 1, reducing the generation of voids. The upper and lower surfaces of the horizontal surface 1211 are filled with the injection liquid, further making the forming and structure of the aluminum cup 1 and the radiator 2 more stable.

[0040] Referring to Figure 2 , the cup wall 11 forms an included angle α with the horizontal plane, where 90° ≤ α < 100°. This design can, on the one hand, further reduce the forming difficulty of single-station die forming and radiator injection molding, and on the other hand, the opening of the cup wall 11 gradually increases downward, facilitating the assembly of other parts such as LED lamps in the later stage.

[0041] The plastic-coated aluminum lamp holder further includes a waterproof decorative part 3 installed under the lamp head 5 and covering the radiator 2, and a lamp shade 4 provided under the aluminum cup 1.

[0042] In summary, through the innovative design of the aluminum cup structure, the present utility model not only solves the problems of low heat dissipation efficiency, high production cost, and unstable installation of traditional aluminum cups, but also greatly improves the overall performance of the lamp, having significant technological progress and practicality.

Claims

1. A plastic-encased aluminum lamp holder with an aluminum cup, characterized in that, It includes a lamp holder (5) for installation and fixation, a radiator (2) made of plastic installed below the lamp holder (5), and an aluminum cup (1) disposed within the radiator (2). The radiator (2) includes an inner sidewall (20) in a cylindrical or frustum shape, and an annular top surface (21) is formed on the upper edge of the inner sidewall (20). The aluminum cup (1) includes a cup wall (11) in a cylindrical or frustum shape that can fit with the inner sidewall (20), and a bent surface (10) that can fit with the annular top surface (21) is integrally formed on the upper edge of the cup wall (11). The bent surface (10) is a flat surface or an inclined surface.

2. The plastic-encased aluminum lamp holder with an aluminum cup according to claim 1, characterized in that Ribs (110) in the vertical direction are uniformly provided on the inner surface of the cup wall (11).

3. The plastic-encased aluminum lamp holder with an aluminum cup according to claim 2, characterized in that Each rib (110) includes a first inclined surface (1101) and a second inclined surface (1102), and a fillet surface (1100) is provided between the first inclined surface (1101) and the second inclined surface (1102).

4. The plastic-encased aluminum lamp socket with an aluminum cup according to claim 3, characterized in that, The first inclined surface (1101) and the second inclined surface (1102) of each rib (110) are symmetric about an axis passing through the center of the cup wall (11), and the included angle between the first inclined surface (1101) and the second inclined surface (1102) is β, and β = 60°.

5. A plastic-encased aluminum lamp holder with an aluminum cup according to claim 1, characterized in that, A step (12) is formed at the lower inner edge of the cup wall (11). The step includes a horizontal first step surface (120) and a second step surface (121) connected to the lower surface of the first step surface (120).

6. The plastic-encased aluminum lamp socket with an aluminum cup according to claim 5, characterized in that The second step surface (121) includes an inclined table surface (1210) and a horizontal surface (1211), and an included angle γ is formed between the inclined table surface (1210) and the horizontal surface (1211), and 90° < γ < 180°.

7. A plastic-coated aluminum lamp holder with an aluminum cup according to claim 1, characterized in that, The cup wall (11) forms an included angle α with the horizontal plane, and 90° ≤ α < 100°.

8. A plastic - wrapped aluminum lamp holder with an aluminum cup according to claim 1, characterized in that, It further includes a waterproof decorative member (3) installed under the lamp holder (5) and covering the radiator (2), and a lamp shade (4) disposed below the aluminum cup (1).

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