A heat dissipation casing for a light bulb

By designing heat dissipation grooves and hinged adjustment fins on the bulb body, the problem of poor heat dissipation is solved, achieving efficient heat dissipation and flexible installation, thus extending the lifespan of the LED bulb.

CN224284544UActive Publication Date: 2026-05-26JIANGXI NEW SMART LIGHTING TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI NEW SMART LIGHTING TECHNOLOGY CO LTD
Filing Date
2025-07-15
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing LED bulb heat dissipation housings lack separate heat dissipation slots and adjustment fins, resulting in poor heat dissipation performance and affecting installation adaptability and service life.

Method used

A bulb body surface is connected to an outer shell, with internal heat dissipation grooves and hinged adjustable fins. Combined with a restraining ring and a U-shaped spring, the heat dissipation channel and area are increased, and the fin width can be adjusted to meet different installation requirements.

Benefits of technology

It improves heat dissipation efficiency and installation adaptability, avoids interference, and extends the lifespan of the bulb.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224284544U_ABST
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Abstract

This utility model discloses a heat dissipation housing for a light bulb, including a light bulb body. One end of the light bulb body is provided with a mounting threaded platform, and a connector is fixedly connected to the end of the mounting threaded platform. An outer shell is fixedly connected to the outer side of the light bulb body. The outer surface of the outer shell is provided with a conical heat dissipation surface, and the surface of the conical heat dissipation surface is provided with a heat dissipation groove. A hinge shaft is hinged to one end of the heat dissipation groove, and an adjusting fin is hinged to one side of the hinge shaft. The adjusting fin is hinged to the inner side of the heat dissipation groove. A binding groove is provided on the surface of the adjusting fin, and a binding ring is locked inside the binding groove. The binding ring is sleeved on the outer surface of the outer shell. A connecting groove is provided on one side of the adjusting fin, and a fixing head is fixedly connected to one end of the connecting groove. A U-shaped spring is fixedly connected to one side of the fixing head, which facilitates adjustment of the unfolded width, has high adaptability, avoids interference, and is convenient for installation and use.
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Description

Technical Field

[0001] This utility model relates to the field of light bulbs, and more specifically, to a heat dissipation housing for a light bulb. Background Technology

[0002] In recent years, the energy-saving and environmentally friendly nature of LED light sources has led to their widespread adoption globally as an ideal light source. However, LEDs are an emerging light source technology with shortcomings in production and application. For example, high production costs hinder their widespread adoption; and heat dissipation is a problem, as overheating during operation causes light decay and reduces their lifespan. Therefore, as a new generation of energy-saving and environmentally friendly light sources, reducing production costs and extending lifespan are crucial for their rapid widespread adoption.

[0003] The utility model patent with authorization announcement number CN 201811159 U discloses a heat dissipation shell for an LED bulb. The heat dissipation shell is a one-piece molded, trumpet-shaped cavity. An opening is formed at the connection end with the lamp holder, and the other end forms an end face and a mounting groove for mounting a lampshade around this end face. This end face serves as a mounting plate for mounting LED light-emitting units, and mounting holes for the LED light-emitting units are formed on this end face. Evenly distributed adjustment fins are formed on the outer peripheral wall of the heat dissipation shell. Using this utility model to produce LED bulbs simplifies the assembly process, improves production efficiency, and achieves good heat dissipation.

[0004] In the above-disclosed structure, heat sinks are directly connected to the outer shell to increase the heat dissipation area. However, the lack of a separate outer shell with heat dissipation slots means that it cannot directly ventilate for heat dissipation. Furthermore, the lack of adjustable fins means that the unfolded width cannot be adjusted as needed, affecting the heat dissipation effect and installation adaptability. Improvements are needed. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a heat dissipation shell for a light bulb. The shell is connected to the surface of the bulb body, and adjustable fins are hinged inside the heat dissipation groove. This allows for heat dissipation channels to be provided, increasing the heat dissipation effect and increasing the heat dissipation area to improve heat dissipation efficiency. It is also convenient for combined use. At the same time, the external connecting restraint ring combined with the internally installed U-shaped spring sheet can provide elastic support and positioning, which is convenient for adjusting the unfolded width, has high adaptability, avoids interference, and is convenient for installation and use.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A heat dissipation housing for a light bulb includes a bulb body. One end of the bulb body has a mounting threaded platform, and a connector is fixedly connected to the end of the mounting threaded platform. An outer shell is fixedly connected to the outer side of the bulb body. The outer surface of the outer shell has a conical heat dissipation surface, and the surface of the conical heat dissipation surface has a heat dissipation groove. A hinge shaft is hinged to one end of the heat dissipation groove, and an adjusting fin is hinged to one side of the hinge shaft. The adjusting fin is hinged to the inner side of the heat dissipation groove. A binding groove is provided on the surface of the adjusting fin, and a binding ring is engaged inside the binding groove. The binding ring is sleeved on the outer surface of the outer shell. A connecting groove is provided on one side of the adjusting fin, and a fixing head is fixedly connected to one end of the connecting groove. A U-shaped spring is fixedly connected to one side of the fixing head.

[0008] Furthermore, one side of the U-shaped spring is fixedly connected to the inner side of the connecting groove, and the U-shaped spring is tightly connected to the inner side of the heat dissipation groove.

[0009] Furthermore, the heat dissipation grooves are evenly distributed at equal angles on the surface of the conical heat dissipation surface, and the adjusting fins are attached to the inner two sides of the heat dissipation grooves.

[0010] Furthermore, the adjusting fins are inclined structures, and the binding grooves are evenly distributed on the outer surface of the adjusting fins. By distributing heat dissipation grooves at equal intervals, and combining the adjusting fins with the inner surface of the heat dissipation grooves, heat dissipation gaps can be opened on the one hand, and heat exchange can be achieved on the other hand, ensuring heat dissipation effect and facilitating combined use.

[0011] Furthermore, the two ends of the restraint ring are provided with movable ends, and the surfaces of the movable ends are engaged with locking cylinders.

[0012] Furthermore, a clamping strip is fixedly connected to the surface of the locking cylinder, and the clamping strip is clamped to both sides of the movable end.

[0013] Furthermore, the clamping strips are symmetrically distributed on the upper and lower sides of both ends of the locking cylinder. They are connected to the interactive end via a restraining ring and positioned by the clamping strips on both sides. This allows for locking and positioning, and facilitates the adjustment of the diameter of the restraining ring by pulling, thereby adjusting the restraining diameter. This makes it convenient for combined use, and ensures stability and efficiency.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution connects the bulb body to the outer shell and sets the heat dissipation groove with hinged adjustment fins inside, which can leave a heat dissipation channel to increase the heat dissipation effect and increase the heat dissipation area to improve the heat dissipation efficiency. It is convenient for combined use. At the same time, the external connection restraint ring combined with the internal U-shaped spring sheet can provide elastic support and positioning, which is convenient for adjusting the unfolding width. It has high adaptability, avoids interference, and is convenient for installation and use.

[0016] (2) By distributing heat dissipation slots at equal intervals and combining them with adjusting fins to fit the inner surface of the heat dissipation slots, heat dissipation gaps can be opened on the one hand, and heat exchange can be achieved on the other hand, ensuring heat dissipation effect and making it convenient to use in combination.

[0017] (3) The interactive end is connected by the restraint ring and the clamping strips on both sides are used for positioning. This allows for locking and positioning, which is convenient for pulling and adjusting the diameter of the restraint ring, thereby adjusting the restraint diameter. This makes it easy to combine and use, and is stable and efficient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the planar structure of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of the adjusting fin connection of this utility model;

[0021] Figure 4 This is a schematic diagram of the outer shell of this utility model;

[0022] Figure 5 This is a structural diagram showing the connection between the restraint ring and the locking cylinder of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Bulb body, 11. Threaded platform, 12. Connector, 13. Outer shell, 14. Conical heat dissipation surface, 15. Heat dissipation groove, 16. Hinge shaft, 17. Adjustment fins, 18. Restraint groove, 19. Restraint ring, 2. Connecting groove, 21. Fixing head, 22. U-shaped spring, 23. Movable end, 24. Locking cylinder, 25. Pressure bar. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 3 and Figure 4A heat dissipation housing for a light bulb includes a bulb body 1. One end of the bulb body 1 has a mounting threaded platform 11, and a connector 12 is fixedly connected to the end of the mounting threaded platform 11. An outer casing 13 is fixedly connected to the outer side of the bulb body 1. The outer surface of the outer casing 13 has a conical heat dissipation surface 14, and the surface of the conical heat dissipation surface 14 has heat dissipation grooves 15. The heat dissipation grooves 15 can directly expose the outer surface of the bulb body 1 for direct heat dissipation. By assembling and mounting the outer casing 15, the heat conduction effect can be increased, improving heat dissipation efficiency. A hinge shaft 16 is hinged to one end of the inner side of the heat dissipation groove 15, and an adjusting fin 17 is hinged to one side of the hinge shaft 16. The adjusting fin 17 is hinged to the inner side of the heat dissipation groove 15. The surface of the fin 17 is provided with a binding groove 18, and a binding ring 19 is engaged inside the binding groove 18. The binding ring 19 is sleeved on the outer surface of the outer shell 13. One side of the adjusting fin 17 is provided with a connecting groove 2. One end of the connecting groove 2 is fixedly connected to a fixing head 21. One side of the fixing head 21 is fixedly connected to a U-shaped spring piece 22. By hingedly installing the adjusting fin 17, the heat dissipation area can be increased. The U-shaped spring piece 22 inside is elastically pressed, thereby lifting the adjusting fin 17 to hinge and rotate around the hinge axis 16, which is conducive to expanding the width outward, which is efficient and stable. By the binding ring 19 being sleeved inside the binding groove 18 at different positions, the expansion width can be limited, which is highly adaptable, precise and efficient, and easy to adjust and use.

[0027] Please see Figure 2 and Figure 3 One side of the U-shaped spring 22 is fixedly connected to the inner side of the connecting groove 2. The U-shaped spring 22 is tightly connected to the inner side of the heat dissipation groove 15. The heat dissipation groove 15 is evenly distributed at equal angles on the surface of the conical heat dissipation surface 14. The adjusting fins 17 are attached to the inner two sides of the heat dissipation groove 15. The adjusting fins 17 have an inclined structure. The binding grooves 18 are evenly distributed on the outer side of the adjusting fins 17. By distributing the heat dissipation grooves at equal intervals and combining the adjusting fins with the inner side of the heat dissipation groove, heat dissipation gaps can be opened on the one hand, and heat exchange can be achieved on the other hand, ensuring the heat dissipation effect and facilitating combined use.

[0028] Please see Figure 1 , Figure 2 and Figure 5The binding ring 19 has movable ends 23 at both ends. A locking cylinder 24 is snapped onto the surface of the movable end 23. A pressing strip 25 is fixedly connected to the surface of the locking cylinder 24. The pressing strip 25 is pressed and connected to both sides of the movable end 23. The pressing strip 25 is symmetrically distributed on the upper and lower sides of both ends of the locking cylinder 24. The binding ring connects to the interactive end and is positioned by the pressing strip on both sides. It can lock and position, which is convenient for pulling and adjusting the diameter of the binding ring, thereby adjusting the binding diameter. It is convenient for combination use, stable and efficient. The locking cylinder 24 is put on the two movable ends 23 and the movable end is pulled manually. Combined with the pressing strip 25, it is locked and fixed. The diameter of the binding ring 19 can be adjusted and put on the binding groove 18 at different positions. It can adjust the positioning and change the width of the unfolded fin 17, which is convenient for installation and use. It can ensure heat dissipation and avoid interference due to excessive external diameter.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A heat dissipation housing for a light bulb, comprising a bulb body (1), wherein one end of the bulb body (1) is provided with a mounting threaded platform (11), and a connector (12) is fixedly connected to the end of the mounting threaded platform (11), characterized in that: The outer side of the bulb body (1) is fixedly connected to the outer shell (13). The outer surface of the outer shell (13) is provided with a conical heat dissipation surface (14). The surface of the conical heat dissipation surface (14) is provided with a heat dissipation groove (15). One end of the heat dissipation groove (15) is hinged to a hinge shaft (16). One side of the hinge shaft (16) is hinged to an adjusting fin (17). The adjusting fin (17) is hinged to the inner side of the heat dissipation groove (15). The surface of the adjusting fin (17) is provided with a binding groove (18). The inner side of the binding groove (18) is fitted with a binding ring (19). The binding ring (19) is sleeved on the outer surface of the outer shell (13). One side of the adjusting fin (17) is provided with a connecting groove (2). One end of the connecting groove (2) is fixedly connected to a fixing head (21). One side of the fixing head (21) is fixedly connected to a U-shaped spring piece (22).

2. The heat dissipation housing of a light bulb according to claim 1, characterized in that: One side of the U-shaped spring (22) is fixedly connected to the inner side of the connecting groove (2), and the U-shaped spring (22) is tightly connected to the inner side of the heat dissipation groove (15).

3. The heat dissipation housing of a light bulb according to claim 1, characterized in that: The heat dissipation grooves (15) are evenly distributed at equal angles on the surface of the conical heat dissipation surface (14), and the adjustment fins (17) are attached to the inner two sides of the heat dissipation grooves (15).

4. The heat dissipation housing of a light bulb according to claim 1, characterized in that: The adjusting fin (17) has an inclined structure, and the binding grooves (18) are evenly distributed on the outer surface of the adjusting fin (17).

5. The heat dissipation housing of a light bulb according to claim 1, characterized in that: The binding ring (19) has movable ends (23) at both ends, and locking cylinders (24) are engaged on the surface of the movable ends (23).

6. The heat dissipation housing of a light bulb according to claim 5, characterized in that: A clamping strip (25) is fixedly connected to the surface of the locking cylinder (24), and the clamping strip (25) is clamped to both sides of the movable end (23).

7. The heat dissipation housing of a light bulb according to claim 6, characterized in that: The clamping strip (25) is located on the upper and lower sides of the two end surfaces of the locking cylinder (24) symmetrically distributed.