Anti-fogging car lamp

By incorporating a drying device into the vehicle headlights and utilizing a humidity sensor and a oscillating fan heating element to reduce humidity, the problem of complex structure and high cost in existing technologies has been solved, resulting in a simple, safe, reliable, and low-cost anti-fog solution.

CN223649148UActive Publication Date: 2025-12-09XUNCHI VEHICLE IND JIANGSU
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Patent Information

Application Number
CN202423193637.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-12-09
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

Existing technologies for preventing headlight fogging suffer from structural complexity and high cost. In particular, the use of fans and radiators increases the complexity and cost of headlights, while the method of spraying nano-metal particles is complex and costly.

Method used

Design an anti-fogging vehicle light that uses a drying device including a lamp housing, lamp cover, drying device, light source, control circuit board and humidity sensor. The humidity sensor monitors the humidity value, and an oscillating fan and heating element are used to reduce the humidity inside the lamp housing to prevent fogging.

Benefits of technology

It achieves a simple, safe, reliable, low-cost, and effective anti-fog effect by reducing the humidity inside the lamp housing through a drying device to prevent the headlights from fogging.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile parts, in particular to an anti-fogging automobile lamp which comprises a lamp shell (1), a lampshade (2), a drying device (3), a light source (4), a control circuit board (5) and a humidity sensor (6), the anti-fogging automobile lamp is scientific in design, reasonable and simple in structure and safe and reliable in function, the relative humidity in the lamp shell is reduced through the drying device, and the anti-fogging automobile lamp is convenient to use. The anti-fogging mask is convenient to use, ideal in effect and low in manufacturing cost.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to anti-fogging vehicle lights. Background Technology

[0002] In winter, fogging easily forms inside car headlights, affecting their illumination. Industry technicians are constantly exploring ways to prevent this. Qihong Technology Co., Ltd.'s patent application (201020152920.2) designs an LED headlight structure that combines anti-fog and anti-vapor features. The main body of the LED module is connected to a heat sink, and a fan is installed in the enclosed cavity of the headlight assembly. This fan circulates the gas within the enclosed cavity, making the temperature distribution more uniform and preventing fogging. However, using a fan and heat sink makes the headlight structure more complex and increases costs. Changzhou Xingyu Automotive Lighting Co., Ltd.'s patent application (201911253412.5) sprays a heatable transparent conductive coating containing nano-metal particles and nano-metal wires onto the inner surface of the headlight lens. This makes the temperature distribution on the lens surface more uniform, reducing the risk of fogging. This design does not require additional anti-fogging agents, but spraying this transparent conductive coating is costly and the process is complex. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an anti-fogging vehicle light.

[0004] The technical solution adopted in this utility model is as follows:

[0005] An anti-fogging vehicle light includes a lamp housing, a lamp cover, a drying device, a light source, a control circuit board, and a humidity sensor. The lamp cover is fixed to the front of the lamp housing, forming a cavity within the light headlight. The cavity houses the light source, a light control circuit board, a humidity sensor, and the drying device. The light control circuit board is electrically connected to the light source. The drying device includes a housing, a oscillating motor, fan blades, a temperature control circuit board, a heating element, a temperature sensor, and an air outlet. The temperature control circuit board, heating element, and temperature sensor are fixedly installed within the housing of the drying device. The humidity sensor, heating element, and temperature sensor are electrically connected to the temperature control circuit board. The oscillating motor includes a base plate, a decorative housing, and a fan motor. The fan blades are fixed to the end of the fan motor spindle, forming an oscillating fan. The air outlet is located on the front side of the housing. The base plate is fixed inside the lamp housing.

[0006] The humidity sensor is fixed on a non-functional area of ​​the lamp housing and / or lampshade that does not affect the optical path.

[0007] This utility model of an anti-fogging vehicle light is scientifically designed, with a reasonable and simple structure, and is safe and reliable in function. Through a drying device, it reduces the relative humidity inside the lamp housing to prevent fogging. It is easy to use, has ideal effects, and is inexpensive to manufacture. Attached Figure Description

[0008] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0009] Figure 1 This is a schematic diagram of the anti-fogging vehicle light of this utility model;

[0010] Figure 2 This is a schematic diagram of the drying device;

[0011] In the diagram: 1-lamp housing; 2-lamp cover; 3-drying device; 31-oscillating motor; 32-fan blade; 33-temperature control circuit board; 34-heating element; 35-temperature sensor; 4-light source; 5-light control circuit board; 6-humidity sensor. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described below are only used to explain this utility model. In these descriptions, key terms such as "drying device," "oscillating structure," and "non-functional area" are only for the purpose of facilitating and simplifying the description of this utility model, and therefore should not be construed as limiting this utility model.

[0013] like Figure 1 As shown, this utility model of an anti-fogging vehicle light includes a lamp housing 1, a lamp cover 2, a drying device 3, a light source 4, a control circuit board 5, and a humidity sensor 6. The lamp cover 2 is fixed to the front of the lamp housing 1, forming a cavity within the light source 4, the light control circuit board 5, the humidity sensor 6, and the drying device 3. The light control circuit board 5 is connected to the light source 4 and controls its on / off state. The humidity sensor 6 is fixed to a non-functional area on the lamp housing 1 and / or the lamp cover 2 that does not affect the light path. Figure 2As shown, the drying device 3 includes a housing, a oscillating motor 31, a fan blade 32, a temperature control circuit board 33, a heating element 34, a temperature sensor 35, and an air outlet. The temperature control circuit board 33, the heating element 34, and the temperature sensor 35 are fixedly installed inside the housing of the drying device 3. The humidity sensor 6, the heating element 34, and the temperature sensor 35 are electrically connected to the temperature control circuit board 33. The structure of the oscillating motor 31 is commonly used in oscillating fans. For example, the oscillating fan structure in publication CN217713034U, entitled "An Oscillating Motor Structure," includes a base plate, a decorative housing, and a fan motor, with an oscillating structure between the base plate and the decorative housing. In this embodiment, the oscillating motor 31 includes the assembled base plate, the decorative housing, and the fan motor. The fan blade 32 is fixed to the end of the fan motor spindle, forming an oscillating fan. The air outlet is located on one side (front) of the housing, and the base plate is fixed inside the lamp housing 1.

[0014] This utility model relates to an anti-fogging vehicle light. A drying device 3 equipped with a oscillating fan is installed inside the lamp housing 1 to reduce the relative humidity of the air around the lamp cover 2, thus reducing the risk of fogging. The device has a built-in temperature control system. A humidity sensor 6 is fixedly installed in a non-functional corner of the lamp cover 2 that does not affect the light path. A temperature control circuit board 33 monitors the humidity value. Once the relative humidity in a certain area of ​​the lamp housing 1 is detected to be >95%, the drying device 3 and heating element 34 in that area are activated via the temperature control circuit board 33. The oscillating fan then disperses hot air from the outlet of the drying device 3 into the areas of the lamp housing 1 with higher relative humidity, preventing fogging of the vehicle light. The drying device 3, through the temperature control circuit board 33 and the temperature sensor 34, can control the air temperature to a constant 80°C. Conversely, when the relative humidity inside the lamp housing is detected by the humidity sensor 34 to be <=80%, the rotatable drying device 3 is deactivated.

[0015] The above description is only a general embodiment of this utility model. For those skilled in the art, there are various other embodiments with modifications and variations, which will not be elaborated here. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model are included within the protection scope claimed by this utility model.

Claims

1. A vehicle light designed to prevent fogging, comprising a lamp housing (1), a lamp cover (2), a drying device (3), a light source (4), a light control circuit board (5), and a humidity sensor (6), characterized in that: The lamp cover (2) is fixed to the front of the lamp housing (1), and the two form a lamp cavity. The cavity is fixedly equipped with a light source (4), a light control circuit board (5), a humidity sensor (6), and a drying device (3). The light control circuit board (5) is electrically connected to the light source (4). The drying device (3) includes a housing, a oscillating motor (31), a fan blade (32), a temperature control circuit board (33), a heating element (34), a temperature sensor (35), and an air outlet. The temperature control circuit board (33), the heating element (34), and the temperature sensor (35) are fixedly installed in the housing of the drying device (3). The humidity sensor (6), the heating element (34), and the temperature sensor (35) are electrically connected to the temperature control circuit board (33). The oscillating motor (31) includes a base plate, a decorative housing, and a fan motor that are assembled and connected. The fan blade (32) is fixed to the end of the fan motor spindle to form an oscillating fan. The air outlet is located on the front side of the housing. The base plate is fixed inside the lamp housing (1).

2. The anti-fogging vehicle light according to claim 1, characterized in that: The humidity sensor (6) is fixed on the non-functional area of ​​the lamp housing (1) and / or lamp shade (2) without affecting the optical path.

Citation Information

Patent Citations

  • Device for preventing fog from being generated on automobile lamp

    CN113028362A

  • Anti-fog / vapor LED vehicle lamp structure

    CN201688285U

  • Oscillating motor structure

    CN217713034U