Protective fish-fin-imitated bulb convenient to dissipate heat
By combining a fish-fin-like structure with a photovoltaic generator in a fish-fin-like bulb, the problems of heat accumulation inside the bulb and inconvenient power supply are solved, achieving efficient heat dissipation and power self-sufficiency, and extending the service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU GUANGMING LIGHT BULB
- Filing Date
- 2025-06-24
- Publication Date
- 2026-04-28
AI Technical Summary
Existing fish fin-shaped light bulbs tend to accumulate heat during use, and their power supply methods are inconvenient, affecting their performance and ease of maintenance.
The protrusions, which mimic the structure of fish fins, are combined with metal thermal conductive materials to form an efficient heat dissipation channel. The solar panels convert sunlight into electrical energy to charge the battery, and the heat dissipation airflow drives a worm gear generator to recover the kinetic energy of heat and store it in the battery to provide power.
It significantly improves heat dissipation efficiency, reduces reliance on the main battery, extends service life, and enhances maintenance convenience.
Smart Images

Figure CN224175114U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle lighting technology, specifically a protective fish fin-shaped bulb that facilitates heat dissipation. Background Technology
[0002] Fish fin-shaped bulbs are roof lights designed in the shape of fish fins. They are commonly installed on the roof of vehicles and are typically used for auxiliary roof lighting or signal indication. They are compact and easy to install.
[0003] Chinese patent (publication number: CN209381893U) discloses a shark fin ambient light for car roofs, comprising a base and a shark fin-shaped cover. The base and the shark fin-shaped cover are fixedly connected. The shark fin-shaped cover is made of a light-transmitting material. A PCB board is mounted on the base, and several LED lights are mounted on the PCB board. A light guide strip is provided above each LED light. A wire hole is provided on the base, and a wiring harness connector is connected to the PCB board. The wiring harness connector passes through the wire hole and communicates with the vehicle's computer. This utility model provides a novel shark fin ambient light for car roofs, which not only makes the appearance cooler and more technological, but also increases human-vehicle interaction, enhances driving pleasure, and provides various safety warning functions, improving driving safety.
[0004] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation: fish fin-shaped bulbs are usually installed on the roof of vehicles, mainly for decoration or warning purposes. However, existing fish fin-shaped bulbs tend to accumulate heat inside during use, and their power supply is inconvenient, affecting the performance and ease of maintenance. Summary of the Invention
[0005] The purpose of this invention is to provide a protective fish fin-shaped light bulb that facilitates heat dissipation, in order to solve the problems in the prior art where existing fish fin-shaped light bulbs easily accumulate heat during use and have inconvenient power supply methods, which affect the performance and ease of maintenance.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a protective fish fin-shaped light bulb that facilitates heat dissipation, including a base, wherein a protrusion is fixedly connected to the top of the base, and the protrusion is a fish fin-shaped structure;
[0007] The protrusion has an internal air duct, an air inlet pipe is installed inside the air duct, a first bracket and two second brackets are fixedly connected inside the air inlet pipe, a generator is fixedly connected inside the first bracket, a worm gear is fixedly connected to the input end of the generator, and the worm gear is installed between the two second brackets.
[0008] Preferably, the inner side of the air duct is provided with an internal thread, the outer side of the air inlet pipe is provided with an external thread, and the air inlet pipe is installed inside the air duct through the threaded connection of its outer external thread and internal thread.
[0009] Preferably, the inner diameter of the front end of the air inlet pipe is larger than the inner diameter of the rear end of the air inlet pipe, the rear end of the air inlet pipe is provided with two annular electrode rings, the air duct is provided with two insertion slots aligned with the electrode rings, and the electrode rings are engaged and connected inside the insertion slots, and the electrode rings are electrically connected to the generator.
[0010] Preferably, an LED bead is fixedly connected to the rear end of the protrusion, and the LED bead surrounds the outside of the air duct, and the LED bead is electrically connected to the insertion slot.
[0011] Preferably, the base has fixing holes at all four corners, an adhesive piece is fixedly connected to the bottom of the base, and a sealing ring is fixedly connected to the bottom edge of the base, with the sealing ring located outside the adhesive piece.
[0012] Preferably, the base has a ventilation chamber inside, and a battery is installed inside the base, and the battery is electrically connected to the LED beads and the plug slot.
[0013] Preferably, the base has through-holes that are evenly distributed and communicate with the ventilation chamber. Photovoltaic panels are provided on both sides of the protrusion and are electrically connected to the battery.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This is a protective fish-fin-shaped bulb that facilitates heat dissipation. The protrusions adopt a fish-fin-like structure, which significantly increases the heat dissipation surface area. Combined with the metal thermally conductive material used in the protrusions, it greatly improves the heat transfer efficiency from the LED beads to the air. The internal tapered air inlet tube forms a highly efficient heat dissipation channel. The combination of the biomimetic structure and the forced convection air channel achieves efficient passive and active synergistic heat dissipation.
[0016] The photovoltaic panels on both sides of the protrusion directly convert sunlight into electrical energy to charge the battery. The cooling airflow drives a worm gear inside the air intake duct, recovering the previously dissipated heat energy and converting it back into electrical energy, which is stored in the built-in battery and directly supplies power to the LED chips for illumination or to supplement the main power supply. This significantly reduces reliance on and consumption of the main battery, extending the overall lifespan. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the rear structure of this utility model;
[0019] Figure 3This is a schematic diagram of the bottom structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the adhesive sheet structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the ventilation chamber structure of this utility model;
[0022] Figure 6 This is a schematic diagram of the air intake structure of this utility model.
[0023] In the diagram: 1. Base; 2. Protrusion; 3. Air duct; 4. Internal thread; 5. Air inlet pipe; 6. External thread; 7. Electrode ring; 8. Insertion slot; 9. LED bead; 10. First bracket; 11. Second bracket; 12. Generator; 13. Worm gear; 14. Fixing hole; 15. Adhesive piece; 16. Sealing ring; 17. Ventilation chamber; 18. Battery; 19. Ventilation hole; 20. Photovoltaic panel. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Example 1: Please refer to Figure 1 - Figure 6This utility model provides the following technical solution: a protective fish fin-shaped light bulb with easy heat dissipation, including a base 1, a protrusion 2 fixedly connected to the top of the base 1, and the protrusion 2 having a fish fin-shaped structure; an air duct 3 is provided inside the protrusion 2, an air inlet pipe 5 is installed inside the air duct 3, a first bracket 10 and two second brackets 11 are fixedly connected inside the air inlet pipe 5, a generator 12 is fixedly connected inside the first bracket 10, a worm gear 13 is fixedly connected to the input end of the generator 12, and the worm gear 13 is installed between the two second brackets 11. The inner side of the air duct 3 has an internal thread 4, the outer side of the air inlet pipe 5 has an external thread 6, and the air inlet pipe 5 is installed inside the air duct 3 through the threaded connection of its outer external thread 6 and inner thread 4. The inner diameter of the front end of the air inlet pipe 5 is larger than the inner diameter of the rear end of the air inlet pipe 5, and the rear end of the air inlet pipe 5 has two annular electrode rings 7. The unit has two insertion slots 8 aligned with the electrode ring 7, and the electrode ring 7 is engaged and connected inside the insertion slots 8. The rear end of the electrode ring 7 and the generator 12 are fixedly connected to the LED lamp bead 2, and the LED lamp bead 9 surrounds the outside of the air duct 3. The LED lamp bead 9 and the insertion slot 8 are electrically connected to the four corners of the base 1, and each corner has a fixing hole 14. The bottom of the base 1 is fixedly connected to the adhesive piece 15, and the bottom edge of the base 1 is fixedly connected to the sealing ring 16, with the sealing ring 16 located outside the adhesive piece 15. The base 1 has a ventilation chamber 17 inside, and a battery 18 is installed inside the base 1. The battery 18 is electrically connected to the LED lamp bead 9 and the insertion slot 8. The base 1 has through-holes equidistantly distributed ventilation holes 19, and the ventilation holes 19 and the ventilation chamber 17 are connected. Photovoltaic panels 20 are provided on both sides of the protrusion 2, and the photovoltaic panels 20 are electrically connected to the battery 18.
[0026] The top of the base 1 is fixedly connected to the protrusion 2, forming an integral structure; the bottom is mechanically fixed through the fixing holes 14 and the adhesive sheet 15. The fixing holes 14 are distributed at the four corners of the base 1 for bolt or screw fixing to the wall or other surfaces to ensure stability; the adhesive sheet 15 provides an additional adhesive layer and is suitable for smooth surfaces.
[0027] The sealing ring 16 is located at the bottom edge of the base 1 and is aligned with the outer periphery of the adhesive patch 15. After the base 1 is installed, the sealing ring 16 is compressed to form a dustproof and waterproof seal, preventing external environmental impurities from entering the interior. The base 1 has a ventilation chamber 17 inside, which serves as a buffer area for air circulation. The ventilation holes 19 are evenly distributed and penetrate the base 1, allowing external cold air to enter the ventilation chamber 17. The ventilation holes 19 are directly connected to the ventilation chamber 17, forming a low-resistance air intake channel, which allows the air to flow stably to assist in heat dissipation.
[0028] The battery 18 is fixed inside the base 1 for storing and supplying power. It is electrically connected to the LED beads 9, the socket 8 and the photovoltaic panel 20 to provide the main power for the system and to be cooled by air convection in the ventilation chamber 17.
[0029] When the LED bead 9 is working, the surface temperature rises, and the metal material of the bump 2 quickly conducts heat. The fish fin structure accelerates heat dissipation through natural air convection. Hot air is dissipated from the surface of the bump 2 and rises, and is discharged to the external environment through the internal air duct 3. The air duct 3 is set inside the bump 2, forming the main heat dissipation channel. The inner side of the air duct 3 is provided with an internal thread 4 for installing the air inlet pipe 5, and the outer side of the latter is provided with an external thread 6. The two are reversibly fixed by the engagement of the internal thread 4 and the external thread 6, which allows the air inlet pipe 5 to be screwed in or removed, which is convenient for maintenance or to deal with blockages.
[0030] The inner diameter of the front end of the air inlet duct 5 is larger than that of the rear end, forming a conical inlet that accelerates the airflow into the air duct 3. When air enters the air inlet duct 5, the larger inner diameter at the front end reduces resistance and draws in more air, while the smaller inner diameter at the rear end increases the flow velocity, thereby enhancing convection efficiency. At the same time, the air duct 3 has two insertion slots 8 inside, which are aligned with the two electrode rings 7 at the rear end of the air inlet duct 5. The electrode rings 7 are ring-shaped and engage with the insertion slots 8 to achieve mechanical and electrical connection, ensuring a continuous power transmission path. When the air inlet duct 5 is installed in place, the electrode rings 7 automatically engage with the insertion slots 8, completing the electrical circuit connection.
[0031] The LED beads 9 are fixed to the rear end of the protrusion 2 and surround the outside of the air duct 3. This arrangement brings the heat source close to the heat dissipation hole, avoiding heat concentration. The LED beads 9 are connected to the battery 18 or the generator 12 through the plug slot 8, and directly use electricity to emit light. The photovoltaic panels 20 on both sides of the protrusion 2 use photosensitive materials to absorb sunlight, convert light energy into electrical energy, and directly connect to the battery 18 for charging, supplementing the main power supply and extending the bulb life.
[0032] The air inlet duct 5 is fixedly connected to the first bracket 10 and two second brackets 11. This triangular support structure stabilizes the internal components. A generator 12 is fixed inside the first bracket 10, with its input end connected to a worm gear 13. The worm gear 13 is installed between the two second brackets 11, located in the middle of the air inlet duct 5. When air passes through the air inlet duct 5, the airflow impacts the blades of the worm gear 13, causing it to rotate. This rotation directly drives the rotor of the generator 12, generating AC or DC power. The generator 12 acts as a small conversion unit, with its output power connected to the electrode ring 7, and then transmitted through the insertion slot 8. This power can be directly supplied to the LED beads 9 to share the load, or fed back to the battery 18 for storage, reducing main battery consumption and indirectly reducing heat generation.
[0033] The photovoltaic panels 20 are installed on both sides of the protrusion 2. During the day, sunlight is absorbed by the photovoltaic materials, generating direct current, which is directly connected to the battery 18 for charging. This not only extends the battery life, but also stores excess electrical energy when the generator 12 is active, ensuring continuous lighting at night or in windless conditions.
[0034] The photovoltaic panel 20 is located on the side of the protrusion 2 and exposed to the airflow. Its own heat can be discharged through the air duct 3. At the same time, the heat of the LED beads 9 is quickly transferred to the flowing air through the surrounding structure, forming a thermal cycle of the whole system and reducing dependence on external power.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A protective fish fin-shaped light bulb that facilitates heat dissipation, comprising a base (1), wherein a protrusion (2) is fixedly connected to the top of the base (1), and the protrusion (2) is a fish fin-shaped structure; Its features are: The protrusion (2) is provided with an air duct (3), and an air inlet pipe (5) is installed inside the air duct (3). A first bracket (10) and two second brackets (11) are fixedly connected inside the air inlet pipe (5). A generator (12) is fixedly connected inside the first bracket (10). A worm gear (13) is fixedly connected to the input end of the generator (12), and the worm gear (13) is installed between the two second brackets (11).
2. The heat-dissipating protective fish-fin-shaped light bulb according to claim 1, characterized in that: The air duct (3) has an internal thread (4) on its inner side and an external thread (6) on its outer side. The air inlet pipe (5) is installed inside the air duct (3) through the threaded connection of its external thread (6) and internal thread (4).
3. A protective, fish-fin-shaped light bulb with easy heat dissipation according to claim 2, characterized in that: The inner diameter of the front end of the air inlet pipe (5) is larger than the inner diameter of the rear end of the air inlet pipe (5). The rear end of the air inlet pipe (5) is provided with two annular electrode rings (7). The air duct (3) is provided with two insertion slots (8) aligned with the electrode rings (7). The electrode rings (7) are engaged and connected inside the insertion slots (8). The electrode rings (7) are electrically connected to the generator (12).
4. A protective, fish-fin-shaped light bulb with easy heat dissipation according to claim 1, characterized in that: The rear end of the protrusion (2) is fixedly connected to an LED bead (9), and the LED bead (9) surrounds the outside of the air duct (3). The LED bead (9) and the plug slot (8) are electrically connected.
5. A heat-dissipating, protective, fish-fin-shaped light bulb according to claim 1, characterized in that: The base (1) has fixing holes (14) at all four corners. The bottom of the base (1) is fixedly connected to an adhesive sheet (15). The bottom edge of the base (1) is fixedly connected to a sealing ring (16), and the sealing ring (16) is located outside the adhesive sheet (15).
6. A heat-dissipating, protective, fish-fin-shaped light bulb according to claim 1, characterized in that: The base (1) has a ventilation chamber (17) inside, and a battery (18) is installed inside the base (1). The battery (18) is electrically connected to the LED beads (9) and the plug slot (8).
7. A heat-dissipating, protective, fish-fin-shaped light bulb according to claim 1, characterized in that: The base (1) has equidistant ventilation holes (19) inside, and the ventilation holes (19) and the ventilation chamber (17) are connected. The protrusion (2) has photovoltaic panels (20) on both sides, and the photovoltaic panels (20) and the battery (18) are electrically connected.
Citation Information
Patent Citations
Shark fin atmosphere lamp applied to top of automobile
CN209381893U