Plug-in defogging agent product for automobile lamps and preparation method thereof

Abstract

The present invention discloses a plug-in defogging agent product for automobile lamps and a preparation method thereof, comprising: a main body and an extension part both of which are encapsulated with a humidifying mixture, the bottom of the main body being connected to the inner surface of the inner shell of the lamp through a groove rail structure, and the extension part extending toward the outside of the main body through a plug-in structure; the preparation method is to first insert the main body with a dovetail groove at the bottom into the dovetail guide rail on the inner surface of the inner shell of the lamp, perform basic positioning, insert the extension part in multiple directions outside the main body as appropriate, and bond and fix the extension part to the lamp housing. Through the above-mentioned method, the present invention can eliminate the phenomenon of fogging and condensation inside automobile lamps, so that its performance can be effectively exerted and work reliably; it can solve the phenomenon of fogging and condensation in small spaces in a long-term and sustainable manner, has low use cost, has huge market demand, and overcomes the serious defect of the short-term effect of desiccant.

Description

Technical Field

[0001] The invention relates to a plug-in type fog absorbing agent product for automobile lamps and a preparation method thereof. Background Art

[0002] The humid air in the small and micro sealed housing products such as network cameras and car lights will cause fogging and condensation on the smooth and transparent inner surface of the housing, which will cause the optical performance of network cameras and car lights to not work properly. After the transparent housing of the network camera is fogged and condensed, the monitoring image will be a white patch. At this time, the monitored object is in an invalid monitoring state, which will cause unexpected events; after the car lights are fogged and condensed, the light transmission performance of the transparent lampshade of the car lights will drop sharply, affecting driving safety. The interior of the precision electrical housing will cause a short circuit due to fogging and condensation, which will reduce the reliability of the electrical performance.

[0003] Some network cameras, car lights and other small and micro-sealed shell products have desiccant bags or molecular sieve adsorbents placed inside; some have air holes opened on network cameras, car lights and other small and micro-sealed shells, which are covered with breathable expanded polytetrafluoroethylene microporous membranes. The above measures have failed to solve the technical problem of air condensation and fogging inside small and micro-sealed shell products such as network cameras and car lights. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a plug-in defogging agent product for automobile lamps and a preparation method thereof, which can solve the phenomenon of fogging and condensation in a small space in a long-term and sustainable manner and overcome the serious defect of the short-term effect of the desiccant.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a plug-in fog absorber product for automobile lamps, including: a main body part and an extension part both of which are encapsulated with a humidity-regulating mixture, the bottom of the main body part is connected to the inner surface of the inner shell of the lamp through a groove structure, and the extension part is extended toward the outside of the main body part through a plug-in structure.

[0006] In a preferred embodiment of the present invention, the groove-rail structure is a matching structure of a dovetail groove and a dovetail guide rail, and a dovetail groove is provided at the bottom of the main body, which is matched and connected with a dovetail guide rail provided on the inner surface of the inner shell of the vehicle lamp.

[0007] In a preferred embodiment of the present invention, a protrusion is provided in the dovetail groove, and the height of the protrusion is slightly greater than the height of the dovetail guide rail on the inner surface of the inner shell of the vehicle lamp, so that after the groove-rail structure is assembled, the main body is fixed in a suitable position on the guide rail by means of the tensioning force and friction force generated by the slight compression deformation of the protrusion.

[0008] In a preferred embodiment of the present invention, the plug-in structure is a plug-in pair consisting of a dovetail groove and a dovetail guide rail, and the plug-in structure is provided on the outer sides of the main body and the extension part, wherein any side surface is a dovetail groove and the other side surface opposite thereto is a dovetail guide rail, that is, the two opposite side surfaces form a plug-in pair.

[0009] In a preferred embodiment of the present invention, a strip rib is provided in the dovetail groove, and the strip rib generates a tensioning force and a friction force of micro-compression deformation between the main body and the extension part, so as to insert and fix the extension part to the periphery of the main body.

[0010] In a preferred embodiment of the present invention, the contact portion between the extension portion and the inner surface of the inner shell of the vehicle lamp is planar and fixedly bonded to the inner surface of the inner shell of the vehicle lamp.

[0011] In a preferred embodiment of the present invention, the humidity-adjusting mixture is composed of high specific surface area silicon dioxide SiO2 aerogel as the main component, and high water-absorbent resin, desiccant and molecular sieve as auxiliary materials, and one or more of them are mixed according to a proportion.

[0012] In a preferred embodiment of the present invention, a top cover assembly is provided on the humidity-adjusting mixture in the main body and the extension portion, and the top cover assembly is formed by welding an expanded polytetrafluoroethylene microporous membrane to a cover plate with fence through holes.

[0013] In order to solve the above technical problems, another technical solution adopted by the present invention is: to provide a preparation method of a plug-in fog absorber product for automobile lamps, firstly, a main body with a dovetail groove at the bottom is inserted into the dovetail guide rail on the inner surface of the inner shell of the lamp to perform basic positioning, and depending on the situation, an extension part is inserted in multiple directions outside the main body, and the extension part is bonded and fixed to the lamp shell.

[0014] In a preferred embodiment of the present invention, a humidity-controlling mixture is encapsulated inside the main body and the extension part. The humidity-controlling mixture is composed of high specific surface area silica SiO2 aerogel as the main component, and highly absorbent resin, desiccant and molecular sieve as auxiliary materials, and one or more of them are mixed according to a ratio.

[0015] The beneficial effects of the present invention are as follows: the present invention eliminates the phenomenon of fogging and condensation inside automobile lamps, so that the performance of the lamps can be effectively exerted and work reliably; the phenomenon of fogging and condensation in small spaces can be solved sustainably for a long time, the use cost is low, there is a huge market demand, and the serious defect of the short-term effect of desiccant is overcome. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0017] Figure 1 It is a structural schematic diagram of a preferred embodiment of the plug-in type fog absorber product for automobile lamps of the present invention;

[0018] Figure 2 yes Figure 1 The schematic diagram of the structure of the main body of the plug-in fog absorber product for automobile headlights is shown;

[0019] Figure 3 yes Figure 2 A top view of the main body of the plug-in fog absorber product for automobile headlights;

[0020] Figure 4 yes Figure 1 The structural schematic diagram of the extended part of the plug-in fog absorber product for automobile headlights shown in the figure;

[0021] Figure 5 yes Figure 3 A top view of the extended portion of the plug-in fog absorber product for automobile headlights is shown. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 5 , the embodiment of the present invention includes:

[0024] A plug-in fog absorber product for automobile lamps, comprising: a main body 1 and an extension 2, both of which are injection molded shells, the main body 1 and the extension 2, which contain a humidity-adjusting mixture, are encapsulated inside the shells, the bottom of the main body 1 is connected to the inner surface of the lamp inner shell through a groove structure, and the extension 2 is extended toward the outside of the main body 1 through a plug-in structure.

[0025] A top cover assembly 3 is provided on the humidity-adjusting mixture in the main body 1 and the extension 2. The top cover assembly 3 is formed by welding an expanded polytetrafluoroethylene microporous membrane to a cover plate with fence holes 3-1. The fence holes 3-1 on the cover plate can be square holes, round holes or special-shaped holes.

[0026] The cover plate provides protection and support for the material in the shell and the expanded polytetrafluoroethylene microporous membrane. The top cover assembly 3 and the shell assembly joint surface are welded and sealed firmly.

[0027] The groove-rail structure is a matching structure of a dovetail groove 1-2 and a dovetail guide rail. A dovetail groove 1-2 is provided at the bottom of the main body 1, and is transitionally matched and connected with a dovetail guide rail provided on the inner surface of the inner shell of the vehicle lamp.

[0028] A protrusion 1-3 is provided in the dovetail groove 1-2. The present invention preferably uses a hemispherical protrusion. The height of the protrusion 1-3 is slightly larger than the height of the dovetail guide rail on the inner surface of the inner shell of the lamp, so that after the groove-rail structure is assembled, the main body 1 is fixed in a suitable position on the guide rail by means of the tension and friction force generated by the slight compression deformation of the protrusion.

[0029] The plug-in structure is a plug-in pair consisting of a dovetail groove 4 and a dovetail guide rail 5. The plug-in structure is provided on the outer sides of the main body 1 and the extension part 2. The dovetail guide rail and the dovetail groove have the same matching size and can be over-fitted for assembly.

[0030] Any side surface of the main body 1 or the extension portion 2 is a dovetail groove 4, and the other side surface opposite thereto is a dovetail guide rail 5, that is, the two opposite side surfaces form a plug-in pair.

[0031] In order to prevent loosening after plug-in assembly, a narrow strip rib plate 4-1 is provided in the dovetail groove 4. The narrow strip rib plate 4-1 generates a tensioning force and a friction force of slight compression deformation between the main body 1 and the extension part 2, and fixes the extension part 2 to the periphery of the main body 1.

[0032] The contact part between the extension part 2 and the inner surface of the inner shell of the vehicle lamp is in a plane shape. The extension part 2 is bonded to the inner surface of the inner shell of the vehicle lamp through a pressure-sensitive film 2-1. The number of extension parts 2 can be configured according to the degree of fogging and condensation of the vehicle lamp.

[0033] Since the bottom and side of the product have dovetail groove assembly structures, the desiccant product will not fall off even if the vehicle vibrates during driving, and the desiccant product can be reliably fixed on the inner surface of the lamp. The dovetail groove assembly structure on the outer surface is conducive to the positioning and efficient assembly and fixation of the extension part 2. The use of the novel dovetail groove assembly structure is conducive to improving the safety and reliability of the product, the production efficiency, and the neat arrangement and more aesthetics.

[0034] The humidity control mixture is made of high specific surface area silicon dioxide SiO2 aerogel as the main component, and highly absorbent resin, desiccant and molecular sieve as auxiliary materials, and one or more of them are mixed according to the proportion. Through the above method, the present invention can adopt the law of SiO2 aerogel adsorbing and releasing water molecules in the air, and make SiO2 aerogel as the basic component into humidity control products of various structures and shapes, which have the ability to absorb and store the micro-water evaporated in the car lamp and slowly release the micro-water to the outside), so that the relative humidity of the air inside the small sealed shell of the car lamp is lower than 35%, so that the micro-water humid air inside the small sealed shell product of the car lamp occurs on the smooth and transparent inner surface of the shell to form fog and condense, so that the optical performance of the car lamp can be effectively exerted.

[0035] A preparation method of a plug-in fog absorber product for automobile lamps comprises: firstly inserting a main body 1 having a dovetail groove at the bottom onto a dovetail guide rail on the inner surface of an inner shell of the lamp to perform basic positioning, inserting an extension part 2 in multiple directions outside the main body 1 as appropriate, and bonding and fixing the extension part 2 to the lamp shell.

[0036] The preparation method of the main body 1 includes: firstly injecting a humidity-adjusting mixture with aerogel ratio into the shell with a dovetail groove at the bottom, covering and welding the top cover assembly 3 with the injection molded shell, drying at a low temperature of 50°C, and vacuum packaging with an aluminum foil bag after passing the inspection.

[0037] The preparation method of the extension part 2 includes: firstly injecting a humidity-adjusting mixture with aerogel ratio into the shell with or without dovetail groove at the bottom, covering and welding the top cover assembly 3 with the injection molded shell, pasting the pressure-sensitive film 2-1 on the bottom of the shell, drying at a low temperature of 50°C, and vacuum packaging with an aluminum foil bag after passing the inspection.

[0038] The preparation method of the top cover assembly 3 includes: placing the expanded polytetrafluoroethylene microporous membrane on the cover plate with the fence through hole 3-1, welding it firmly with ultrasonic hot pressing, and transferring it to the next process after passing the inspection.

[0039] The main body 1 and the extension 2 are both encapsulated with a humidity-adjusting mixture, which is a mixture of one or more of high-surface-area silicon dioxide SiO2 aerogel as a main component and high-absorbent resin, desiccant and molecular sieve as auxiliary materials according to a ratio.

[0040] SiO2 aerogel has a large specific surface area and high porosity. Most of the hydrophilic -OH on the surface of SiO2 particles. The surface of aerogel contains a large number of hydrophilic groups, silanol, which makes it easy to adsorb water molecules in the air. SiO2 aerogel has a special microstructure such as a three-dimensional nanoparticle skeleton (skeleton particles 2~5nm), a high specific surface area, nanoscale pores, and low density, which makes it strong in adsorbing water molecules. When the air humidity of SiO2 aerogel is high (rainy and foggy days), it can absorb a large amount of water molecules in the humid air it contacts. When the air humidity of SiO2 aerogel is low (sunny days), it can quickly release the adsorbed water molecules into the dry air it contacts. The nanopores in SiO2 aerogel are vacant, waiting for the next wave of water molecules in the humid air to be adsorbed into the interior of the aerogel. The ability of SiO2 aerogel to store and release water molecules can occur at the ambient temperature of the atmosphere, without providing energy or temperature to SiO2 aerogel.

[0041] Super absorbent resin is a new type of polymer material, a high molecular weight polymer of hydrophilic monomers, which can absorb hundreds to thousands of times its own weight in water. It is non-toxic, harmless and pollution-free. It has a very strong water absorption capacity and a very high water retention capacity. The absorbed water cannot be squeezed out by simple physical methods, and it can repeatedly release and absorb water molecules.

[0042] Desiccant: calcium oxide, aluminum oxide, magnesium oxide, strontium oxide, magnesium chloride, etc.

[0043] Deoxidizer: Deoxidizer is an additive that absorbs oxygen and slows down the oxidation of electrical circuits. Deoxidizer can effectively inhibit the growth of mold and aerobic bacteria.

[0044] Molecular sieve activated carbon: The micropore diameter of activated carbon used for air purification must be slightly larger than the molecular diameter of toxic and harmful gases in order to have the ability to adsorb toxic and harmful gases. The key factors affecting the service life of air purification activated carbon are the total amount of harmful substances in the use environment and the frequency of desorption, because the quality of harmful gases adsorbed by activated carbon can be close to or even reach its own quality.

[0045] There are 3.34X10 water molecules in 1 gram of water. 22 The diameter of a water molecule is 0.4nm, and the area of ​​a water molecule is 0.1256nm 2 , specific surface area 1m 2 The SiO2 aerogel can adsorb and arrange 7.96X10 18 water molecules. Therefore, the specific surface area of ​​SiO2 aerogel is 200-1200 m 2 / g, the number of water molecules that can be adsorbed and stored per gram of SiO2 aerogel is 1.59 X10 21 ~ 9.552X10 21The larger the specific surface area of ​​SiO2 aerogel, the stronger its ability to absorb and release moisture molecules. Aerogel has the characteristics of small particle size, low density, high specific surface area and high porosity, and its microscopic network skeleton and voids generally enter the nanometer range.

[0046] When fog and condensation form inside the car lights, the light transmittance of the transparent lampshade drops sharply, affecting driving safety.

[0047] Under certain temperature conditions, the higher the relative humidity in the air and the closer the ambient temperature is to the dew point temperature, the easier it is for condensation to occur; the drier the air, the less likely the dew point is to be affected by temperature, and the less likely it is that condensation will form inside the headlights. Plug-in dehumidifier products for automotive headlights can make the relative humidity of the air inside micro-sealed shells such as automotive headlights lower than 35%, so the dew point temperature of the air inside is very low, which is lower than the cooling temperature of the smooth and transparent shell caused by the external environment such as heavy rain or dense fog. The phenomenon of fogging and condensation on the inner surface of the smooth and transparent shell will basically not occur, thereby eliminating the problem of condensation and dew formation inside the headlights.

[0048] The present invention can also be used in other tiny spaces besides car lights. The tiny space refers to the internal space of a shell with certain functions, such as a monitoring probe, a network camera, a car ECU control unit, a precision electronic equipment shell, a car light, a camera, etc. The air inside the shell has an adverse effect on the performance of the shell: for example, when the shell is at the dew point temperature, the air inside it condenses, causing the electrical performance to not be effectively exerted, resulting in safety problems such as blurred monitoring and the car light's high beam not being able to reach far; or food and medicine encapsulated in the tiny space may become moldy, oxidized, or deteriorate.

[0049] The plug-in fog absorber product for automobile lamps of the present invention is applied to the air humidity regulation and internal and external pressure balance of small and micro sealed shell products such as monitoring probes, network cameras, automobile ECU control units, precision electronic equipment housings, automobile lamps, cameras, etc., to solve the fogging and condensation phenomenon caused by the trace moisture and humid air inside the micro sealed shell products on the smooth and transparent shell inner surface, so that the optical performance can be effectively and permanently exerted, and the sealing structure complexity and sealing cost of automobile ECU control units, precision electronic equipment housings, network cameras, automobile lamps, etc. can be reduced by balancing the internal and external air pressures.

[0050] In summary, the plug-in defogging agent product for automobile headlights of the present invention has a dovetail groove assembly structure at the bottom and side and a raised hemispherical tightening point at the bottom, so that the defogging agent product will not fall off even if the vehicle vibrates during driving, and the defogging agent product can be reliably fixed on the inner surface of the headlight, and the dovetail groove assembly structure on the outer surface is conducive to expanding the positioning of the defogging agent product and high-efficiency plug-in bonding assembly and fixation. The dovetail groove assembly structure is conducive to improving the safety and reliability of the product, production efficiency, and neat arrangement and more aesthetics.

[0051] The plug-in defogging agent product for automobile lamps of the present invention can eliminate the phenomenon of fogging and condensation inside automobile lamps, so that its performance can be effectively exerted and work reliably. It can solve the phenomenon of fogging and condensation in small spaces in a long-term and sustainable manner, has low use cost, has huge market demand, and overcomes the serious defect of short-term effect of desiccant.

[0052] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A plug-in defogging agent product for automobile lamps, characterized in that: include: The main body and the extension part are both encapsulated with a humidity-conditioning mixture. The bottom of the main body is connected to the inner surface of the inner shell of the lamp through a groove-rail structure, and the extension part is extended to the outside of the main body through a plug-in structure. The groove-rail structure is a matching structure of a dovetail groove and a dovetail guide rail. A dovetail groove is provided at the bottom of the main body, which is matched and connected with a dovetail guide rail provided on the inner surface of the inner shell of the lamp. A protrusion is provided in the dovetail groove, and the height of the protrusion is slightly greater than the height of the dovetail guide rail on the inner surface of the inner shell of the lamp, so that after the groove-rail structure is assembled, the protrusion is slightly compressed and deformed to produce The main body is fixed at the appropriate position of the guide rail by the tensioning force and frictional force generated; the plug-in structure is a plug-in pair composed of a dovetail groove and a dovetail guide rail, and the outer sides of the main body and the extension are provided with plug-in structures, wherein any one side is a dovetail groove, and the other side opposite to it is a dovetail guide rail, that is, the two opposite side surfaces form a plug-in pair; a strip rib plate is provided in the dovetail groove, and the strip rib plate generates a tensioning force and frictional force of micro-compression deformation between the main body and the extension, so that the extension is plugged and fixed to the periphery of the main body.

2. The plug-in defogging agent product for automobile lamps according to claim 1, characterized in that: The contact portion between the extension part and the inner surface of the inner shell of the vehicle lamp is in a plane shape and is fixedly bonded to the inner surface of the inner shell of the vehicle lamp.

3. The plug-in fog absorber product for automobile lamps according to claim 1, characterized in that: The humidity-controlling mixture is mainly composed of high specific surface area silicon dioxide SiO2 aerogel, and high water-absorbent resin, desiccant and molecular sieve as auxiliary materials, and one or more of them are mixed according to a proportion.

4. The plug-in fog absorber product for automobile lamps according to claim 1, characterized in that: A top cover assembly is arranged on the humidity-adjusting mixture in the main body and the extension part. The top cover assembly is formed by welding an expanded polytetrafluoroethylene microporous membrane and a cover plate with fence through holes.

5. The method for preparing the plug-in fog absorbing agent product for automobile lamps according to any one of claims 1 to 4, characterized in that: First, insert the main body with a dovetail groove at the bottom into the dovetail guide rail on the inner surface of the inner shell of the headlight for basic positioning. Depending on the situation, insert the extension part in multiple directions outside the main body and bond the extension part to the headlight shell.

6. The method for preparing the plug-in fog absorber product for automobile lamps according to claim 5, characterized in that: The main body and the extension part are both encapsulated with a humidity-adjusting mixture, which is a mixture of one or more of high-surface-area silicon dioxide SiO2 aerogel as a main component and high-absorbent resin, desiccant and molecular sieve as auxiliary materials according to a ratio.

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