Efficient demisting and drying device for car lamp
By arranging resistor wires on the thick walls of the transparent lamp cover of the headlight and heating, combined with the drying components, the problem of mist under the headlight and on the side is solved, and a defog effect with rapid heating, good oxidation resistance and strong corrosion resistance is achieved.
Patent Information
- Application Number
- CN202421783179.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The prior art is difficult to effectively solve the fog problem below and side of the car lights, and conventional methods have limitations and inconveniences.
A resistor wire is arranged at the thick wall of the transparent lamp cover of the headlight and connected to the power supply through a hot stamping process. The heating resistor wire is used to convert electrical energy into heat, increase the temperature of the lamp cover to dissipate the mist, and a drying component is installed at the bottom of the lamp cover to assist in drying.
It achieves rapid heating, good oxidation resistance, strong corrosion resistance, significantly extends service life, effectively dissipates mist, and improves the defog effect of the headlights.
Smart Images

Figure CN223271096U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicle lamp drying, and in particular relates to a high-efficiency demisting and drying device for vehicle lamps. Background Art
[0002] Car lamps are prone to fogging, and the fog is mainly concentrated below or on the sides of the lamps. Figure 1 As shown, this is the so-called "cold zone," which is prone to consumer complaints. Currently, conventional solutions for fogged headlights include the following: First, anti-fog coating: A hydrophobic coating makes the inner surface of the lampshade hydrophobic, allowing water vapor to form an extremely thin film on the inner surface of the lampshade, preventing fogging. The disadvantage is that it can form sagging with prolonged use or improper spraying methods. Second, desiccant: Magnesium chloride desiccant is often used as a desiccant for headlights. It has a high moisture absorption rate, but is also irreversible and has a short shelf life. Third, waterproof and breathable device: The breathable membrane and breathable cap utilize the principle of water vapor diffusion. When the lamp is lit, the humid air inside the lamp is diffused out of the lamp. The disadvantage is that they are used in large quantities and cannot effectively solve the fogging problem in the cold zone of the mask.
[0003] Therefore, in view of the cold zone phenomenon of headlights, it is very necessary to provide a headlight with an efficient defogging and drying device to effectively solve the problem of headlight fog. Utility Model Content
[0004] In view of this, the technical problem to be solved by the present invention is to provide a high-efficiency demisting and drying device for vehicle lamps, so as to avoid the trouble that fog is easily formed under and on the sides of vehicle lamps in the past.
[0005] In order to solve the above technical problems, the utility model discloses a high-efficiency demisting and drying device for a car lamp, comprising a car lamp body, the car lamp body having a transparent lampshade, wherein the transparent lampshade has a thick-walled portion extending from the lower side to the left and right sides, the thick-walled portion has a height of 1-1.5 cm, and has multiple sections of concave arc grooves, the thick-walled portion is arranged with a resistance wire by hot stamping, and the end of the resistance wire is provided with a connector; the bottom of the transparent lampshade has a fixing groove located at the lower end of the resistance wire, the fixing groove is fixed with a drying component, and the drying component has a built-in desiccant.
[0006] According to one embodiment of the present invention, the drying assembly includes an outer shell, which is fixed to the bottom of the transparent lampshade by screws, and the upper end of the outer shell is flush with the surface of the transparent lampshade, and the upper end of the outer shell has multiple ventilation holes.
[0007] According to one embodiment of the present invention, the connector is connected to the power supply of the vehicle lamp body.
[0008] According to one embodiment of the present invention, the resistance wires are arranged in at least two layers.
[0009] According to one embodiment of the present invention, the thickness of the thick-walled portion is 0.3-0.6 cm.
[0010] According to one embodiment of the present invention, the resistance wire is spirally arranged in the concave arc groove.
[0011] Compared with the prior art, the present invention can achieve the following technical effects:
[0012] By using the hot stamping process, the resistance wire is printed on the inner wall of the lampshade which is prone to fogging. The heating resistance wire is energized to convert electrical energy into thermal energy, and ultimately the temperature of the lampshade near the heating resistance wire is increased by 60℃~80℃, thereby achieving the purpose of dissipating the fog on the inner wall of the lampshade. It has the advantages of fast heating, good oxidation resistance, corrosion resistance, and long service life.
[0013] The bottom of the transparent lampshade is fixed with a drying component, which is easy to replace and has good drying performance.
[0014] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:
[0016] Figure 1 This is a schematic diagram of fogging of a headlight according to an embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram of a high-efficiency demisting and drying device for vehicle lamps according to an embodiment of the present utility model;
[0018] Figure 3 yes Figure 2 Side view of;
[0019] Figure 4 It is a schematic diagram of the resistance wire of an embodiment of the present utility model.
[0020] Figure ID
[0021] The vehicle lamp body 10 , the transparent lampshade 11 , the thick-walled portion 20 , the resistance wire 30 , the connector 40 , and the drying assembly 50 . DETAILED DESCRIPTION
[0022] The following will describe the implementation of the present invention in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0023] Please refer to Figures 1 to 4 , Figure 1 This is a schematic diagram of fogging of a headlight according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of a high-efficiency demisting and drying device for vehicle lamps according to an embodiment of the present utility model; Figure 3 yes Figure 2 Side view of; Figure 4 It is a schematic diagram of the resistance wire of an embodiment of the present utility model.
[0024] Car lamps are prone to fogging, and the fog is mainly concentrated below or on the sides of the lamps. Figure 1 The shaded area is the so-called "cold zone". The present invention aims to provide a device to solve this cold zone phenomenon.
[0025] Specifically, the utility model discloses a high-efficiency demisting and drying device for a headlight, comprising a headlight body 10, the headlight body 10 having a transparent lampshade 11, wherein the transparent lampshade 11 has a thick-walled portion 20 extending from the lower side to the left and right sides, the thick-walled portion 20 has a height of 1-1.5 cm, and has multiple sections of concave arc grooves, the thick-walled portion 20 is arranged with a resistance wire 30 by hot stamping, and a connector 40 is provided at the end of the resistance wire 30; the bottom of the transparent lampshade 20 has a fixing groove located at the lower end of the resistance wire 30, and a drying component 50 is installed and fixed in the fixing groove, and the drying component 50 has a built-in desiccant.
[0026] In one embodiment of the present invention, the transparent lampshade 11 at the front end of the vehicle lamp body 10 is thickened in the cold zone, with a thickness of 0.3-0.6 cm and a height of 1-1.5 cm, covering the area prone to fogging. A resistance wire 30 is placed in this thick-walled portion 20 via a hot stamping process and printed onto the inner wall of the lampshade, which is prone to fogging. A connector 40 connected at the end provides power to the heating resistance wire 30, converting electrical energy into heat. This ultimately raises the lampshade temperature near the heating resistance wire 30 by 60°C to 80°C, dissipating fog on the inner wall of the lampshade. Furthermore, a drying assembly 50 is installed at the lower end of the resistance wire 30 in a fixed groove, and the desiccant inside the assembly performs daily drying.
[0027] Preferably, the drying assembly 50 includes an outer shell, which is fixed to the bottom of the transparent lampshade 11 by screws, making it easy to install and replace. The upper end of the outer shell is flush with the surface of the transparent lampshade 11 so as not to affect the light emission. The upper end of the outer shell has multiple ventilation holes to ensure the normal operation of the desiccant.
[0028] In one embodiment of the present invention, the connector 40 is connected to the power supply of the vehicle lamp body 10. When the lamp is powered on, the power supply is turned on, making it easy to turn on and off.
[0029] Preferably, the resistance wire 30 is arranged in at least two layers to improve heating efficiency.
[0030] It is worth mentioning that a plurality of concave arc grooves are provided on the thick-walled portion 20 to improve the staggered feeling of the area directly facing the fog. Because the lamp area is not a plane, providing the thick-walled portion 20 with multiple arc surfaces can relatively increase the surface area, thereby increasing the heat conduction area, and making demisting and drying more efficient.
[0031] In addition, the resistance wire 30 is spirally arranged at the concave arc groove to improve heating efficiency and achieve efficient demisting.
[0032] To sum up, the utility model uses a hot stamping process to print a resistance wire on the inner wall of the lampshade that is prone to fogging, energizes the heating resistance wire, converts electrical energy into thermal energy, and ultimately increases the temperature of the lampshade near the heating resistance wire by 60°C to 80°C, thereby achieving the purpose of dissipating the fog on the inner wall of the lampshade. It has the advantages of fast heating, good oxidation resistance, corrosion resistance, and long service life.
[0033] The above description shows and describes several preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.
Claims
1. A high-efficiency demisting and drying device for a vehicle lamp, comprising a vehicle lamp body having a transparent lampshade, characterized in that: The transparent lampshade has a thick-walled portion extending from the lower side to the left and right sides, the thick-walled portion has a height of 1-1.5 cm and has multiple sections of concave arc grooves, the thick-walled portion is arranged with a resistance wire by hot stamping, and the end of the resistance wire is provided with a connector; the bottom of the transparent lampshade has a fixing groove located at the lower end of the resistance wire, and the fixing groove is fixed with a drying component, and the drying component has a built-in desiccant.
2. The high-efficiency demisting and drying device for vehicle lamps according to claim 1, characterized in that: The drying component includes an outer shell, which is fixed to the bottom of the transparent lampshade by screws, and the upper end of the outer shell is flush with the surface of the transparent lampshade, and the upper end of the outer shell has multiple ventilation holes.
3. The high-efficiency demisting and drying device for vehicle lamps according to claim 1, characterized in that: The connector is connected to the power supply of the vehicle lamp body.
4. The high-efficiency demisting and drying device for vehicle lamps according to claim 1, characterized in that: The resistance wires are arranged in at least two layers.
5. The high-efficiency demisting and drying device for vehicle lamps according to claim 1, characterized in that: The thickness of the thick-walled portion is 0.3-0.6 cm.
6. The high-efficiency demisting and drying device for vehicle lamps according to claim 1, characterized in that: The resistance wire is spirally arranged at the concave arc groove.