Car lamp heat dissipation structure

Abstract

The utility model discloses a car lamp heat dissipation structure, which belongs to the field of car lamps, and comprises a lamp body, a protective cover is clamped on the outer wall of the lamp body, a heat dissipation component is arranged on the side wall of the lamp body, the heat dissipation component comprises a heat dissipation cylinder clamped at the end part of the lamp body, an air inlet groove is formed in the end part of the heat dissipation cylinder, and a bimetallic strip is fixedly connected on the side wall of the heat dissipation cylinder. Through cooperation of all the devices, the heat dissipation effect of the lamp body can be improved, heat can be rapidly absorbed and transmitted to the inner wall of the heat dissipation barrel through the excellent heat absorption performance of a heat conduction plate and a heat conduction rod, and when the temperature rises, the bimetallic strips are excited by the heat and start to be bent gradually, so that the heat dissipation effect of the lamp body is improved. The outer wall of the heat dissipation barrel is gradually opened, airflow rapidly blows from the outwards-turned face of the bimetallic strip, heat accumulated in the heat dissipation barrel can be rapidly extracted due to the Bernoulli effect, and the assembly is simple in structure and can improve the heat dissipation effect of the automobile lamp in a small space.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, specifically a heat dissipation structure for automotive lights. Background Technology

[0002] Vehicle lights are the lights on a vehicle. They are used to illuminate the road when the vehicle is driving at night, and also to provide various vehicle driving signals. They have advantages such as low cost, relatively simple structure, and low manufacturing cost. They are widely used in economy vehicles. Their light has strong penetrating power, allowing drivers to see the road conditions and surrounding objects better in environments with poor visibility, such as fog and rain.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN218645386U) discloses a vehicle headlight heat dissipation structure, including a lamp body, comprising a headlight housing; a heat dissipation mechanism, comprising a signal light radiator, which is fixedly connected to the outer surface of the headlight housing; and a fixing mechanism, comprising a first sealing ring, which is movably connected to the outer surface of a ventilation duct. This utility model cools the signal light radiator by circulating oil from the oil tank within the oil pipe and by using natural airflow from the air vent, thus maintaining the temperature of the vehicle headlight and extending its lifespan. The ventilation duct is fixed by a nut on a bolt, secured by the first and second sealing rings, facilitating disassembly and installation of the ventilation duct and allowing for phased use. It also helps protect the internal structure by making the ventilation duct easier to disassemble in winter and extreme weather conditions.

[0004] Although the aforementioned patent facilitates the disassembly of the ventilation pipe by drivers in harsh environments such as winter through the design of heat dissipation and fixing mechanisms, and the cooperation of components such as nuts, bolts, and fixing blocks, the headlights generate heat during vehicle operation due to their internal illumination. While the cooling oil circulating in the oil pipes can dissipate heat from the headlight body, the continuous heat generation still results in high temperatures inside the headlight body. Furthermore, the amount of heat carried away from the headlight by the airflow through the smooth ventilation openings is relatively small, which is not conducive to improving the headlight's heat dissipation effect.

[0005] Therefore, this utility model provides a heat dissipation structure for vehicle lights to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This utility model provides a heat dissipation structure for vehicle lights, aiming to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A vehicle headlight heat dissipation structure includes a headlight body, a protective cover is snapped onto the outer wall of the headlight body, and a heat dissipation component is provided on the side wall of the headlight body;

[0011] The heat dissipation assembly includes a heat dissipation cylinder snapped onto the end of the lamp body. The end of the heat dissipation cylinder has an air inlet slot. A number of bimetallic strips are fixedly connected to the side wall of the heat dissipation cylinder. A slot is formed on the inner wall of the heat dissipation cylinder. A heat-conducting plate is snapped onto the inner wall of the slot. A heat-conducting rod that quickly absorbs heat is fixedly connected to the inner wall of the heat-conducting plate. A heat dissipation groove is formed on the outer wall of the heat-conducting plate. A dustproof component is provided on the outer wall of the heat-conducting plate.

[0012] As a preferred technical solution of this application, the dustproof component includes a mounting plate fixedly connected to the inner wall of the heat sink cylinder, a dustproof mesh is attached to the inner wall of the mounting plate, and a scraping component is provided on the outer wall of the heat conduction plate.

[0013] As a preferred technical solution of this application, the scraping component includes a limiting groove formed on the outer wall of the heat-conducting plate, and a slider is slidably connected to the inner wall of the limiting groove.

[0014] As a preferred technical solution of this application, the scraping assembly further includes a scraper fixedly connected to the top of the slider, and a brush is fixedly connected to the top of the scraper corresponding to the dustproof net.

[0015] As a preferred technical solution of this application, a drive motor is fixedly connected to the inner wall of the heat sink, and a fan is fixedly sleeved at the output end of the drive motor.

[0016] As a preferred technical solution of this application, a sealing cover is snapped onto the side wall of the heat sink, and the outer wall of the sealing cover is provided with an installation groove for easy installation.

[0017] (III) Beneficial Effects

[0018] By designing a heat dissipation component, the heat dissipation effect of the lamp body can be improved, increasing the speed at which the working heat inside the lamp body dissipates during vehicle operation. Utilizing the heat-conducting plates and rods, the excellent heat absorption performance allows heat to be quickly absorbed and transferred to the inner wall of the heat sink. As the temperature rises, the bimetallic strip is excited by the heat and begins to gradually bend, causing the outer wall of the heat sink to gradually open. Airflow is then rapidly blowing from the outward-facing surface of the bimetallic strip. Due to the Bernoulli effect, the heat accumulated inside the heat sink can be quickly extracted. This component has a simple structure, is highly practical, and can improve the heat dissipation effect of vehicle lamps in a relatively small space. Attached Figure Description

[0019] Figure 1A schematic diagram of the overall structure of a vehicle headlight heat dissipation structure;

[0020] Figure 2 This is a schematic diagram of the heat sink in a vehicle headlight heat dissipation structure.

[0021] Figure 3 This is a schematic diagram of a sealing cover in a vehicle headlight heat dissipation structure.

[0022] Figure 4 This is a schematic diagram of the internal disassembled structure of the heat sink in a vehicle headlight heat dissipation structure.

[0023] Figure 5 This is a schematic diagram of a scraper in a vehicle headlight heat dissipation structure.

[0024] In the picture:

[0025] 1. Lamp body; 2. Protective cover; 3. Heat sink; 4. Bimetallic strip; 5. Slot; 6. Heat-conducting plate; 7. Heat-conducting rod; 8. Slot; 9. Dustproof net; 10. Limiting slide; 11. Slider; 12. Scraper; 13. Drive motor; 14. Fan; 15. Sealing cover. Detailed Implementation

[0026] 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.

[0027] This utility model provides a heat dissipation structure for vehicle lights, such as Figures 1-5 As shown, the vehicle headlight heat dissipation structure includes a headlight body 1, a protective cover 2 is snapped onto the outer wall of the headlight body 1, and a heat dissipation component is provided on the side wall of the headlight body 1.

[0028] The heat dissipation assembly includes a heat dissipation cylinder 3 that is snapped onto the end of the lamp body 1. An air inlet slot is provided at the end of the heat dissipation cylinder 3. A bimetallic strip 4 is fixedly connected to the side wall of the heat dissipation cylinder 3, and there are several bimetallic strips 4. A slot 5 is provided on the inner wall of the heat dissipation cylinder 3. A heat-conducting plate 6 is snapped onto the inner wall of the slot 5. A heat-conducting rod 7 that quickly absorbs heat is fixedly connected to the inner wall of the heat-conducting plate 6. A heat dissipation groove is provided on the outer wall of the heat-conducting plate 6. A dustproof component is provided on the outer wall of the heat-conducting plate 6.

[0029] The dustproof component includes a mounting plate 8 fixedly connected to the inner wall of the heat sink 3, a dustproof mesh 9 being attached to the inner wall of the mounting plate 8, and a scraping component being provided on the outer wall of the heat conduction plate 6.

[0030] A drive motor 13 is fixedly connected to the inner wall of the heat sink 3, and a fan 14 is fixedly connected to the output end of the drive motor 13.

[0031] Specifically, the protective cover 2 provides protection for the lamp body 1, preventing damage from external impacts and protecting it from rainwater entering the lamp body 1 and affecting circuit safety, thus extending its lifespan. The heat dissipation components enhance heat dissipation, preventing prolonged use and ensuring the lamp body 1's performance is protected from high internal temperatures. A heat sink 3 at the end of the lamp body 1 releases internal heat through an air inlet, utilizing temperature differences for heat dissipation. A slot 5 on the inner wall of the heat sink 3 securely holds the heat-conducting plate 6, preventing slippage due to vehicle vibrations. The heat-conducting plate 6 and its internally connected heat-conducting rod 7 utilize their excellent thermal conductivity to quickly absorb internal heat. When the temperature inside the lamp body 1 rises, the bimetallic strip 4 expands due to the heat, with the two layers of the bimetallic strip 4 expanding at different rates. When stimulated by heat, the bimetallic strip 4 bends towards the outer wall of the heat sink 3. When airflow passes over the bent bimetallic strip 4, the high external airflow speed quickly draws out the heat from the heat sink 3 through the Bernoulli effect, causing the temperature inside the sink to drop. Compared to a smooth heat dissipation vent, this component can improve heat dissipation efficiency. At the same time, due to its good material properties, when the lamp body 1 is used up and the temperature drops, the bimetallic strip 4 will automatically bend back to its original position after the heat dissipation. During driving, the drive motor 13 on the inner wall of the heat sink 3 drives the fan 14 to rotate, which can also accelerate the airflow inside the sink and further improve the heat dissipation effect. With the dustproof component, the cooperation of the card plate 8 and the dustproof net 9 can prevent external dust from entering the heat sink 3 during heat dissipation and affecting the normal operation of the heat dissipation component. This component has a simple structure, strong practicality, and can improve the heat dissipation effect of the vehicle lamp by using small parts in cooperation.

[0032] The scraping assembly includes a limiting groove 10 formed on the outer wall of the heat-conducting plate 6, and a slider 11 is slidably connected to the inner wall of the limiting groove 10.

[0033] The scraping assembly also includes a scraper 12 fixedly connected to the top of the slider 11, and a brush is fixedly connected to the top of the scraper 12 at the dustproof mesh 9.

[0034] A sealing cap 15 is snapped onto the side wall of the heat sink 3, and the outer wall of the sealing cap 15 has an installation groove for easy installation.

[0035] Specifically, by setting up the scraping component, the inertia of the car starting and stopping during driving can be used to drive the scraper 12 and brush to clean the dust screen 9 using the slider 11, thus preventing the dust screen 9 from being blocked and affecting the heat dissipation effect. The limiting groove 10 can limit the slider 11 to ensure that it will not fall out of the groove during the sliding process, further improving the stability of use.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A heat dissipation structure for a vehicle lamp, comprising a lamp body (1), characterized in that: The outer wall of the lamp body (1) is fitted with a protective cover (2), and the side wall of the lamp body (1) is provided with a heat dissipation component; The heat dissipation assembly includes a heat dissipation cylinder (3) snapped onto the end of the lamp body (1). The end of the heat dissipation cylinder (3) is provided with an air inlet slot. A bimetallic strip (4) is fixedly connected to the side wall of the heat dissipation cylinder (3), and there are several bimetallic strips (4). A slot (5) is provided on the inner wall of the heat dissipation cylinder (3). A heat-conducting plate (6) is snapped onto the inner wall of the slot (5). A heat-conducting rod (7) that quickly absorbs heat is fixedly connected to the inner wall of the heat-conducting plate (6). A heat dissipation groove is provided on the outer wall of the heat-conducting plate (6). A dustproof component is provided on the outer wall of the heat-conducting plate (6).

2. The vehicle headlight heat dissipation structure according to claim 1, characterized in that: The dustproof component includes a mounting plate (8) fixedly connected to the inner wall of the heat sink (3), and a dustproof mesh (9) is attached to the inner wall of the mounting plate (8). A scraping component is provided on the outer wall of the heat conduction plate (6).

3. The vehicle headlight heat dissipation structure according to claim 2, characterized in that: The scraping assembly includes a limiting groove (10) formed on the outer wall of the heat-conducting plate (6), and a slider (11) is slidably connected to the inner wall of the limiting groove (10).

4. The vehicle headlight heat dissipation structure according to claim 3, characterized in that: The scraping assembly also includes a scraper (12) fixedly connected to the top of the slider (11), and a brush is fixedly connected to the top of the scraper (12) at the dustproof net (9).

5. The vehicle headlight heat dissipation structure according to claim 1, characterized in that: A drive motor (13) is fixedly connected to the inner wall of the heat sink (3), and a fan (14) is fixedly sleeved at the output end of the drive motor (13).

6. The vehicle headlight heat dissipation structure according to claim 1, characterized in that: The side wall of the heat sink (3) is fitted with a sealing cap (15), and the outer wall of the sealing cap (15) is provided with an installation groove for easy installation.

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