CN212029394U

CN212029394U - Fog optimization structure of double-cavity headlamp

Info

Publication number: CN212029394U
Application number: CN202021166999.4U
Authority: CN
Inventors: 陈雷; 姜维; 陈俊杰; 李大航; 袁斌; 黄坚; 王万晶; 何琳倩
Original assignee: SAIC Volkswagen Automotive Co Ltd
Current assignee: SAIC Volkswagen Automotive Co Ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2020-11-27
Anticipated expiration: 2030-06-22

Abstract

The utility model relates to the technical field of automobiles, more specifically the theory relates to a structure is optimized to two-chamber headlamp fog. The utility model provides a double-cavity headlamp atomization optimization structure, which comprises an upper cavity and a lower cavity which are vertically arranged in space; the lens comprises an upper cavity lens and a lower cavity lens which are respectively arranged in the upper cavity and the lower cavity, and the lenses are fixed on the headlamp shell in a splicing way through a glue groove; a moisture absorption drying device is arranged at the bottom in the lower cavity; the double-cavity headlamp is provided with a headlamp controller, and the headlamp controller is installed and fixed inside the lower cavity. The utility model provides a pair of two-chamber headlamp fog optimizes structure can reduce the production of two-chamber headlamp fog effectively, reduces the steam of lens department.

Description

Fog optimization structure of double-cavity headlamp

Technical Field

The utility model relates to an automobile lamp technical field, more specifically the theory that says so relates to a structure is optimized to two-chamber headlamp fog.

Background

The automobile lamp is the eyes of an automobile, and plays a decisive role in the shape of the automobile, however, because of the different climate distribution in China inland seasons, especially in winter in the north, the lens of the automobile lamp is very easy to fog, the fog of the automobile lamp can seriously affect the irradiation effect of the light source in the lamp, and the problems of the change of the emergent light type of the lamp, the weakening of the illumination intensity of the road surface, the narrowing of the visual recognition angle of a signal lamp and the like occur.

Generally, a single-cavity structure is mostly adopted in a headlamp of an automobile, fig. 1a discloses a front view of a single-cavity headlamp structure in the prior art, as shown in fig. 1a, a visible function region 103 of the headlamp is arranged in a black frame line, a lens is transparent in the region, and distribution of internal function structures and function lighting conditions can be easily seen through the transparent lens.

The periphery of the black frame line is provided with an invisible area 104a and an invisible area 104b, a shielding decorative ring of black PC is structurally adopted, and a fixing structure of the transparent lens is reserved on the shielding decorative ring.

Fig. 1b shows a cross-sectional view of a single-chamber headlamp structure in the prior art, when the headlamp is turned on, the movement of water molecules in the lamp is as shown in fig. 1b, the lens 102 is fixed on the headlamp housing 101 in a manner of being inserted into the rubber groove 106, heat generated by the heat sink pushes water molecules to move toward the lens 102, the water molecules are condensed by cold air on the lens 102, and meanwhile, the hot water molecules float up and the cold water molecules sink down, so that the water molecules are deposited in the shielding decorative ring 105 at the lower end of the transparent lens or in an invisible area, and the heat of the heat source dries the water molecules at the lower end of the transparent lens, the fog of the headlamp is invisible, and the fog of the invisible area is invisible, so that the headlamp is not considered.

At present, defogging structures and defogging measures of a transparent lens in a single-cavity headlamp are relatively mature, and researches on a defogging method of a dual-cavity headlamp are relatively few.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a two-chamber headlamp fog optimizes structure solves the problem that prior art is difficult to effectively improve to the fog of two-chamber headlamp.

In order to achieve the purpose, the utility model provides a double-cavity headlamp atomization optimization structure, which comprises an upper cavity and a lower cavity which are vertically arranged in space;

the lens comprises an upper cavity lens and a lower cavity lens which are respectively arranged in the upper cavity and the lower cavity, and the lenses are fixed on the headlamp shell in a splicing way through a glue groove;

the upper cavity is communicated with the lower cavity, and the lower cavity shell is not provided with a ventilating bent pipe, so that the lower cavity is in a semi-closed state;

a lens is arranged in the lower cavity, a sleeve decorative ring is arranged at the front end of the lens, and the labyrinth shielding structure is connected with the upper cavity and is a multi-bending structure;

and a moisture absorption drying device is arranged at the bottom of the lower cavity.

In one embodiment, the dual-chamber headlamp is provided with a headlamp controller, and the headlamp controller is fixedly installed in the lower cavity.

In one embodiment, the labyrinth shielding structure is two transverse reinforcing ribs, and the upper part of the sleeve decoration ring is inserted into the middle of the two transverse reinforcing ribs to form a multi-bending structure.

In one embodiment, the front end structure of the sleeve decorative ring is close to the front, and the distance between the front end structure of the sleeve decorative ring and the inner surface of the lens is 5 mm;

the vertical distance between the two transverse reinforcing ribs inserted into the labyrinth structure at the upper part of the sleeve decorative ring is 3 mm;

the distance between the bottom of the sleeve decorative ring and the lens is 3 mm;

the distance between the left side and the right side of the sleeve decorative ring and the lens is 3 mm.

In one embodiment, three gas permeable elbows are provided on the back of the upper chamber housing:

the first ventilation bent pipe and the second ventilation bent pipe are positioned on the right side of the headlamp shell and close to the grille and are used as air inlet bent pipes;

and the third ventilation elbow is positioned at the position, close to the fender, on the left side of the headlamp shell and serves as an air outlet elbow.

the lens comprises an upper cavity lens and a lower cavity lens which are split and are respectively arranged in the upper cavity and the lower cavity, and the lenses are fixed on the headlamp shell in an inserting mode through a glue groove;

a connecting hole is arranged between the upper cavity and the lower cavity, and a sealing gasket is arranged on the connecting hole to isolate the upper cavity from the lower cavity;

In one embodiment, the dual-chamber headlamp is provided with a headlamp controller which is mounted and fixed in the lower chamber, and a connecting cable of the headlamp controller is arranged between the two chambers.

In one embodiment, the lower chamber shell is provided with a vent hole on the back surface, and two ventilation bent pipes are arranged, namely an air inlet bent pipe and an air outlet bent pipe.

In one embodiment, the upper chamber is provided with a fixed moisture absorption drying device.

In one embodiment, the back of the upper chamber shell is provided with vent holes, and four ventilation bent pipes are arranged, wherein two of the four ventilation bent pipes are air inlet bent pipes, and the other two ventilation bent pipes are air outlet bent pipes.

The utility model provides a pair of two-chamber headlamp fog optimizes structure can reduce the production of two-chamber headlamp fog effectively, reduces the steam of lens department.

Drawings

The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which like reference numerals refer to like features throughout, and in which:

FIG. 1a discloses a front view of a prior art single chamber headlamp configuration;

FIG. 1b shows a cross-sectional view of a prior art single chamber headlamp configuration;

fig. 2a discloses a front view of a semi-enclosed dual chamber headlamp configuration according to an embodiment of the present invention;

fig. 2b illustrates a cross-sectional view of a semi-enclosed dual chamber headlamp configuration according to an embodiment of the present invention;

fig. 3a illustrates a longitudinal cross-sectional view of a semi-enclosed dual chamber headlamp configuration in accordance with an embodiment of the present invention;

fig. 3b illustrates a cross-sectional view of a semi-enclosed dual chamber headlamp configuration in accordance with an embodiment of the present invention;

fig. 4a discloses an isometric view of a sleeve bezel structure according to an embodiment of the present invention;

fig. 4b discloses a rear view of a semi-enclosed dual chamber headlamp structure according to an embodiment of the present invention;

fig. 5 illustrates a longitudinal cross-sectional view of a fully enclosed dual chamber headlamp structure according to an embodiment of the present invention;

fig. 6 discloses a fully enclosed dual chamber headlamp desiccant distribution according to an embodiment of the present invention;

fig. 7 discloses a rear view of a fully enclosed dual chamber headlamp structure according to an embodiment of the present invention.

The meanings of the reference symbols in the figures are as follows:

101 headlamp housing;

102 a lens;

103 a visible functional area;

104a invisible area;

104b invisible area;

105 shielding the decorative ring;

106 glue grooves;

201 headlamp housing;

202 a lens;

203 an upper cavity lens;

204 lower cavity lens;

205 shielding the decorative ring;

206 glue groove;

207 a labyrinth shielding structure;

208 sleeve decorative rings;

209 lenses;

210 moisture absorbing drying boxes;

211 a controller;

212A breathable bent tube;

212B a breathable bent tube;

212C gas permeable bent tube;

213, a wire harness;

214 a rubber seal;

215 a vent hole;

216 bag-packed desiccant;

217 connecting through holes;

301 headlamp housing;

303 an upper cavity lens;

304 lower cavity lens;

306 glue groove;

310 moisture absorbing drying boxes;

312A breathable bent pipe;

312B breathable bent pipe;

312C breathable bent pipe;

312D breathable bent pipe;

312E breathable bent tube;

313 harness;

314 rubber gaskets;

315 a vent hole;

316A bag desiccant;

316B is packed with desiccant;

316C bag desiccant;

316D bagged desiccant;

317 are connected with the through holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model relates to a two-chamber headlamp fog optimizes structure, according to the inner structure of two-chamber headlamp, proposes fog to seal two-chamber headlamp structure and semi-closed two-chamber headlamp structure and optimizes the structure.

The type of two-chamber headlamp can divide into semi-closed two-chamber headlamp structure and seals two kinds of two-chamber headlamp structure.

Fig. 2a discloses according to the utility model discloses a semi-closed two-chamber headlamp structure elevation, as shown in fig. 2a, the utility model provides a semi-closed two-chamber headlamp's structure distributes, and the two-chamber headlamp adopts vertical arranging in space, divide into epicoele and lower chamber.

The lens 202 may be divided into an upper portion and a lower portion, which are respectively disposed in an upper chamber and a lower chamber, i.e., an upper chamber lens 203 and a lower chamber lens 204, and fixed to the headlamp housing 201.

Alternatively, the transparent lens 202 may be formed as a one-piece lens.

Alternatively, the transparent lens 202 may be formed as a split lens.

Fig. 2b discloses according to the utility model discloses a semi-closed two-chamber headlamp structure section view, like the semi-closed two-chamber headlamp structure shown in fig. 2b, the upper and lower two chambeies of semi-closed two-chamber headlamp are in the UNICOM state, and the hydrone that is in the epicoele can be constantly deposited downwards at the in-process of air heat exchange, and the external ventilative return bend and the outside air of passing through with the help of headlamp casing 201 of ventilating simultaneously are interacted.

The lens 202 is fixed to the headlight housing 201 by means of an adhesive groove 206.

The lower chamber is generally used as a corner light, a turn light, and a fog light due to the function definition, the power of the light source (LED or bulb) used is low, the heat generated is little, and it is difficult to remove the moisture accumulated in the lower chamber, which causes the lower chamber lens 204 to form a fog appearance, causing customer complaints.

Fig. 3a discloses according to the utility model discloses a semi-closed two-chamber headlamp structure longitudinal section view, fig. 3b discloses according to the utility model discloses a semi-closed two-chamber headlamp structure transverse section view of an embodiment sets up the coordinate system as the automobile body coordinate system, and definition coordinate Z is to being car height direction, upwards is positive, and Y is to the width direction of the car, right is positive, and X is to being the length direction of the car, is positive backward. The longitudinal direction of the vehicle body is the Y direction, the transverse direction of the vehicle body is the X direction, the longitudinal section is the XZ plane, and the transverse section is the XY plane.

As shown in fig. 3a and 3b, the utility model discloses to semi-closed two-chamber headlamp structure, lens 202 includes epicoele lens and cavity of resorption lens, adopts maze shielding structure 207 to reduce the water molecule content near cavity of resorption lens 204 to use moisture absorption drying device in headlamp housing 201 cavity of resorption bottom, the ventilative return bend of cavity of resorption casing department cancellation makes the cavity of resorption be in semi-closed state, reduces the risk of hazing of cavity of resorption lens 204. In the present embodiment, the moisture absorption and drying device is a moisture absorption and drying box 210.

In particular, in order to reduce the amount of water vapor entering the lower chamber from the upper chamber, a labyrinth 207 is added to the black sleeve bezel 208 of the headlamp.

From the longitudinal cross-section of the semi-enclosed dual-chamber headlamp structure shown in fig. 3a, the labyrinth shielding structure 207 mainly has two transverse (Y-direction) ribs with a vertical spacing of 10 mm.

The lens is arranged in the lower cavity, the sleeve decorative ring is arranged at the front end of the lens, the labyrinth shielding structure is connected with the upper cavity, and the labyrinth shielding structure is a multi-bending structure.

Fig. 4a shows an isometric view of a sleeve bezel structure according to an embodiment of the present invention, such as the sleeve bezel 208 shown in fig. 4a, by optimizing the structure of the sleeve bezel 208 at the front end of the lens 209, the front end structure of the sleeve bezel 208 is kept as far as possible, and the distance between the front end structure of the sleeve bezel 208 and the inner surface of the lens 202 is kept to be 5 mm.

The upper portion of sleeve decorations circle 208 need insert the maze and shelter from the centre of two horizontal strengthening ribs of structure 207, forms the structure of buckling many times, and vertical 3 mm's interval of guaranteeing avoids leading to vibrating the appearance of powder phenomenon because the clearance undersize.

A3 mm gap is kept between the bottom of the sleeve decorative ring 208 and the lens 202, and the labyrinth shielding structure 207 can effectively prevent water molecules from sinking near the transparent lens 202.

In particular, in the transverse cross-sectional view of the semi-enclosed dual-chamber headlamp structure of fig. 3b, the left and right sides of the sleeve bezel 208 are also spaced from the transparent lens 202 by 3mm, and the headlamp housing 201 is moved forward as much as possible to reduce the amount of water molecules entering the lower cavity.

Specifically, a moisture absorption drying box 210 is added to the bottom of the headlamp housing 201, i.e., the lower chamber position.

In the present embodiment, the moisture absorption and drying device is a moisture absorption and drying box 210. The main components of the moisture absorption material in the moisture absorption drying box 210 are MgCl2 and CaO, wherein MgCl2 can be combined with water molecules to form unstable components such as MgCl 26H 2O and the like, and the components are used as short-term rapid moisture absorption materials, and CaO is used as a main drying material and plays a role in absorbing water molecules for a long time.

Fig. 4b shows a rear view of a semi-closed dual chamber headlamp according to an embodiment of the present invention, such as the semi-closed dual chamber headlamp shown in fig. 4b, the rear portion of the lower chamber is removed from the housing structure to keep the closed structure of the lower chamber as much as possible.

The back of the upper chamber is provided with three ventilation elbows for ventilating the internal structure of the upper chamber, wherein the

ventilation elbows

212A and 212B are positioned on the right side of the headlamp housing 201 and near the grille position and serve as main intake elbows.

Vent bend 212C is located on the left side of headlamp housing 201 near the fender location as the primary vent bend.

In particular, the dual-chamber headlamp is provided with a headlamp controller 211, and the installation position of the headlamp controller 211 is fixed at the lower chamber position, so that the heat source energy behind the lower chamber lens 204 is increased, and the risk of fog generation of the lower chamber lens 204 is reduced.

Fig. 5 discloses according to the utility model discloses a totally closed two-chamber headlamp structure longitudinal section picture, as shown in fig. 5, totally closed two-chamber headlamp structure, adopt split type lens, epicoele lens 303 and lower chamber lens 304 promptly, wherein it has twice groove 306 to open on headlamp housing 301 for fixed epicoele lens 303 and lower chamber lens 304 guarantee the gas tightness of two-chamber headlamp.

A connecting through hole 317 is reserved between the upper cavity and the lower cavity of the headlamp, a rubber gasket 314 is used for being installed on the connecting through hole 317 to isolate the upper cavity from the lower cavity, and meanwhile, a connecting wiring harness 313 of the controller can be arranged between the two cavities.

This mounting arrangement allows the entire enclosed dual chamber headlamp structure to be converted into two separate lamp configurations.

In particular, the dual-chamber headlamp is provided with a headlamp controller, and the installation position of the headlamp controller is fixed inside the lower cavity due to the lower heat emitted by the lower cavity light source, so that the temperature inside the lower cavity is increased.

The bottom of the lower cavity is provided with a moisture absorption drying device. In this embodiment, the moisture absorption drying device is a bagged desiccant. A bag of 10g of bagged drying agent 316D is fixed at the bottom of the lower cavity through gluing, a vent hole 315 is formed in the back of the shell, and a vent bent pipe 312E and a vent bent pipe 312F are used for facilitating internal airflow circulation.

Fig. 6 discloses according to the utility model relates to a totally closed two-chamber headlamp drier distribution diagram, fig. 7 discloses according to the utility model discloses a totally closed two-chamber headlamp structure back view of embodiment, as shown in fig. 6 and fig. 7, totally closed two-chamber headlamp structure, in view of the existence of high temperature heat sources such as intracavity high beam, passing lamp, position lamp on the headlamp, fog dissipation ability is stronger than the cavity of resorption, headlamp casing 301 goes up the cavity of lumen casing back and sets up four return bends of ventilating, the return bend 312A of breathing freely promptly to the return bend 312D of breathing freely, two advance two.

Meanwhile, according to the allowance of the structure space in the upper cavity, the upper cavity is provided with a fixed moisture absorption drying device.

The upper cavity is added with 3 bagged desiccants, namely a bagged desiccant 316A, a bagged desiccant 316B and a bagged desiccant 316C, wherein 2 bagged desiccants with 5g and 1 bagged desiccant with 10g reduce the fogging phenomenon of the double-cavity headlamp to the maximum extent.

While, for purposes of simplicity of explanation, the methodologies are shown and described as a series of acts, it is to be understood and appreciated that the methodologies are not limited by the order of acts, as some acts may, in accordance with one or more embodiments, occur in different orders and/or concurrently with other acts from that shown and described herein or not shown and described herein, as would be understood by one skilled in the art.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

The above-described embodiments are provided to enable persons skilled in the art to make or use the invention, and many modifications and variations may be made to the above-described embodiments by persons skilled in the art without departing from the inventive concept of the present invention, so that the scope of the invention is not limited by the above-described embodiments, but should be accorded the widest scope consistent with the innovative features set forth in the claims.

Claims

1. A fog optimization structure of a double-cavity headlamp is characterized in that the double-cavity headlamp comprises an upper cavity and a lower cavity which are vertically arranged in space;

a moisture absorption drying device is arranged at the bottom in the lower cavity;

the double-cavity headlamp is provided with a headlamp controller, and the headlamp controller is installed and fixed inside the lower cavity.

2. The fog optimizing structure of the dual-chamber headlamp of claim 1, wherein:

3. The fog optimizing structure of the dual-cavity headlamp of claim 2, wherein the labyrinth shielding structure is formed by two transverse reinforcing ribs, and the upper part of the sleeve decorative ring is inserted into the middle of the two transverse reinforcing ribs to form a multi-bending structure.

4. The fog optimized structure of the dual-chamber headlamp of claim 3,

the front end structure of the sleeve decorative ring is close to the front, and the distance between the front end structure of the sleeve decorative ring and the inner surface of the lens is 5 mm;

the vertical distance between the two transverse reinforcing ribs inserted into the labyrinth shielding structure at the upper part of the sleeve decorative ring is 3 mm;

5. The fog optimizing structure for the dual-chamber headlamp of claim 2, wherein three air-permeable elbows are arranged on the back of the upper chamber shell:

6. The fog optimizing structure of the dual-chamber headlamp of claim 1, wherein:

the lens comprises an upper cavity lens and a lower cavity lens which are split, and the upper cavity lens and the lower cavity lens are fixed on the headlamp shell in an inserting mode through two rubber grooves respectively;

a connecting through hole is formed between the upper cavity and the lower cavity, a sealing gasket is arranged on the connecting through hole to isolate the upper cavity from the lower cavity, and a connecting wire harness of the headlamp controller is arranged between the two cavities.

7. The fog optimizing structure for the dual-chamber headlamp of claim 6, wherein the lower chamber housing is provided with a vent hole on the back surface, and two vent bends are provided, namely an inlet bend and an outlet bend.

8. The fog optimizing structure for a dual-chamber headlamp of claim 6 wherein said upper chamber is provided with a fixed moisture absorption drying device.

9. The fog optimizing structure for the dual-chamber headlamp of claim 6, wherein the back of the upper chamber housing is provided with a vent hole, and four ventilation elbows are arranged, wherein two of the four ventilation elbows are air inlet elbows, and the other two ventilation elbows are air outlet elbows.