CN216924252U - Heat insulation sheet folding structure and car lamp module thereof - Google Patents

Abstract

The utility model provides a heat insulation sheet turning structure and a car lamp module thereof, relating to the field of automobile parts, wherein the heat insulation sheet turning structure comprises a shell and turning pieces, and the turning pieces are uniformly distributed on the shell; the shell comprises a bottom plate, side plates and a fixing plate, wherein the side plates are connected to two sides of the bottom plate respectively, the fixing plate is connected to one end of the bottom plate, and a turnover piece is arranged on the bottom plate. The car lamp module further comprises a support, a light source and a thick lens, wherein one end of the support is connected with a heat insulation sheet turnover structure, and the other end of the support is connected with the thick lens; the heat insulation sheet turnover structure reflects the light source to the support, and the support absorbs the light source. According to the utility model, through the turnover structure, reflection of a light source inside the car lamp module towards a thick lens is reduced on the basis that the heat insulation sheet ensures that the problem of sunlight focusing is avoided, so that the problem of stray light of the car lamp is reduced; the reflection of sunlight in the car lamp module is reduced, so that the heat accumulation near a light source in the car lamp module is reduced; reduce the heat altered shape of the inside light source subassembly of car light module for car light module light source is more stable, and is more reliable.

Description

Heat insulation sheet folding structure and car lamp module thereof

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a heat insulation sheet folding structure and an automobile lamp module thereof.

Background

In the field of automobile lamp design, the sunlight focusing problem is always a problem that must be considered and avoided in design, and the sunlight focusing problem can lead to the heat concentration and accumulation of automobile lamp parts, thus leading to the risks of overheating, deformation, roasting and even burning of the parts. Along with host computer factory car light molding more and more complicated, the car light function is more and more complicated and cool dazzling, and on the other hand car light development trend is more and more to narrow opening, little space, compactification promotion, brings the inside hot problem of car light itself more and more serious from this, and sunshine focus problem more becomes the problem that the car light design must be considered and solved. At present, on the problem of car light module sunlight focusing, the mode that mainly adopts the heat insulating sheet to shelter from is solved, nevertheless because the heat insulating sheet of current design does not do benefit to the circulation of air, though the risk that the sunshine focusing problem brought can be reduced to a great extent, but the function is complicated, the car light of increasingly cool dazzling still can have certain sunshine focusing risk because light source power is too high or the narrow little problem in space.

Meanwhile, due to the flat heat insulation sheet, part of emergent light of the internal light source is reflected by the plane of the flat heat insulation sheet and then is irradiated on the thick lens, and the part of the emergent light is undesirable in optical design, so that the problem of stray light of the car lamp module is brought, and the problems of regulation requirements, uniformity and the like of the car lamp can be influenced. The traditional mode can increase the paint spraying technology to the heat insulating sheet, reduces the reflectivity, increases the absorptivity of light, and this can produce great promotion to the manufacturing cost of part to because the spraying paint can only reduce the reflectivity, inevitably still have the inside stray light and the hot problem of formation of car light module in fact.

Sunlight or the inside back of car light external environment light source getting into car light module, can have some reflection behind the heat shield of flat formula, light can increase the near heat accumulation of the inside light source of car light module after the reflection, lead to car light module inside light source subassembly heat altered shape and heat gathering, light source and near subassembly heat altered shape lead to the passing light cut-off line to move down, the change of optical parameter point position, the regulation function can't satisfy, influence the stability of car light module light source, reliability, bring the light source overheated inefficacy when lighting for a long time even.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a heat insulation sheet folding structure.

The heat insulation sheet turnover structure comprises a shell and turnover pieces, wherein the turnover pieces are uniformly distributed on the shell;

the shell comprises a bottom plate, side plates and a fixing plate, wherein the side plates are connected to two sides of the bottom plate respectively, the fixing plate is connected to one end of the bottom plate, and a turnover piece is arranged on the bottom plate.

In some embodiments, the flap is stamped from the base plate and has an opening.

In some embodiments, the punch angle of the flip is 5 ° to 60 °.

In some embodiments, the folding member comprises a bevel and a facet, the bevel is connected with the facet, and the facet is on the same horizontal plane with the bottom plate.

In some embodiments, the ramp is configured as a first ramp and a second ramp, and the first ramp or/and the second ramp is stamped on the flip piece.

The utility model also provides a car lamp module comprising the heat insulation sheet turnover structure, and the car lamp module also comprises a support, an internal light source and a thick lens, wherein one end of the support is connected with the heat insulation sheet turnover structure, and the other end of the support is connected with the thick lens;

the heat insulation sheet turnover structure reflects the internal light source to the support, and the support absorbs the light source.

In some embodiments, the light path of the internal light source is irradiated on the back of the inclined plane, the light path is reflected downwards to the bracket, and the bracket absorbs the reflected light path;

or the light path of the internal light source directly irradiates to the bracket through the opening of the turnover piece, and the bracket absorbs the direct light path;

or the light path of the internal light source irradiates on the front surface of the facet to form reflection, the light path reflected to the back of the inclined plane is shielded and then reflected to the support for the second time, and the support absorbs the light path of the second reflection.

In some embodiments, when the heat shield folding structure receives an external light source other than the internal light source, the heat shield folding structure reflects the external light source onto the support, which absorbs the light source; or the heat insulation sheet turnover structure reflects the external light source to the outside of the module.

In some embodiments, the light path of the external light source impinges on the front face of the facet, the facet reflects the light path onto the support, and the support absorbs the light path;

or the light path of the external light source irradiates on the front surface of the small plane, the small plane reflects the light path to the front surface of the inclined plane, the inclined plane reflects the light path to the bracket for the second time, and the bracket absorbs the light path;

or the light path of the external light source irradiates on the front face of the inclined plane, the inclined plane reflects the light path to the support or the thick lens, the light path reflected to the support is absorbed through the support, and the light path reflected to the thick lens is refracted to the outside of the module.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the turnover structure, on the basis that the heat insulation sheet ensures that the problem of sunlight focusing is avoided, light is reflected to the support or shielded through the inclined plane of the turnover structure, so that the reflection of a light source in the car lamp module towards the direction of the thick lens is further reduced, and the problem of stray light of the car lamp is further reduced; the reflection of sunlight in the car lamp module is reduced, so that the accumulation of heat near a light source in the car lamp module is reduced; therefore, the thermal deformation of the light source component in the car light module is reduced, and the light source of the car light module is more stable and reliable.

2. The process is easy to operate and low in cost; due to the stamping process, the opening is formed while the die set is turned over, and the circulation of air flow in the die set is facilitated.

3. According to the utility model, through the turnover structure, the air circulation of the heat insulation sheet and the bracket of the module can be improved, the heat is further dredged and circulated, and the sunlight focusing risk is reduced.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is an exploded view of a vehicular lamp module according to the present invention;

FIG. 2 is a sectional view showing the connection between the turnover structure of the heat insulating sheet and the bracket according to the present invention;

FIG. 3 is a schematic structural view of a heat shield folding structure according to the present invention;

FIG. 4 is a schematic view of a second bevel structure according to the present invention;

FIG. 5 is a schematic view of a first bevel structure according to the present invention;

FIG. 6 is a schematic view of a stamping angle of the turnover part of the present invention;

FIG. 7 is a schematic structural diagram of the intersection point of the first inclined plane and the lower critical ray to the lower horizontal base plane of the base plate according to the present invention;

FIG. 8 is a schematic view of an illumination structure of an internal light source according to the present invention;

FIG. 9 is a schematic view of an external light source irradiation structure according to the present invention.

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the utility model. All falling within the scope of the present invention.

Example 1

The utility model provides a heat insulation sheet folding structure which comprises a shell 1 and folding pieces 2, wherein the folding pieces 2 are arranged on the shell 1 in parallel, the folding pieces 2 are formed by punching the shell 1 in a punching mode, and the back of each folding piece 2 is provided with an opening. Preferably, the turnover part 2 is formed into a plurality of same upward turnover structures through one-time stamping, so that a certain included angle is formed between the turnover surface and the bottom surface, and no additional part is added. The punching angle of the turnover piece 2 is 5-60 degrees. Preferably, as shown in fig. 7, the optimum punching angle a of the fold-over part 2 is 45 °.

The shell 1 and the turnover part 2 can be made of metal materials or plastic materials with metal paint sprayed on the surfaces. The housing 1 and the flap 2 are preferably of a metallic material. More importantly, the plastic material with the surface sprayed with the metallic paint needs to avoid spraying the ferrous metallic paint and the high-reflectivity metallic paint. Ferrous metal paints absorb heat severely, leading to thermal and solar focusing problems; the stray light problem caused by the high-reflectivity metallic paint is serious.

As shown in fig. 3, the housing 1 includes a bottom plate 11, side plates 12 and a fixing plate 13, the side plates 12 are respectively connected to two sides of the bottom plate 11, the fixing plate 13 is connected to one end of the bottom plate 11, and the bottom plate 11 is provided with a turnover part 2.

As shown in fig. 4-6, the folding member 2 comprises a slant surface 21 and a small plane 22, the slant surface 21 is connected with the small plane 22, and the small plane 22 is on the same horizontal plane with the bottom plate 11. The inclined plane 21 is divided into a first inclined plane 211 and a second inclined plane 212, and the turnover part 2 is punched to form the first inclined plane 211 or/and the second inclined plane 212. Preferably, the turnover part 2 can use the first inclined surface 211 alone, the second inclined surface 212 alone or a mixture of the first inclined surface 211 and the second inclined surface 212 according to actual conditions. The first slope 211 has a larger area than the second slope 212.

More specifically, when the car lamp module is located in a position close to the outer lens in the lamp body, all areas of the heat insulation sheet turnover structure 100 are high risk areas for sunlight focusing; when the car lamp module is far away from the outer lens in the lamp body, the area of the heat insulation sheet turnover structure 100 close to the lens position is a high risk area of sunlight focusing problem, and the area of the heat insulation sheet turnover structure 100 far away from the lens position may not have sunlight focusing problem or has low risk. If the high risk area is concentrated in the area where the heat shield folding structure 100 is close to the outer lens, the heat shield folding structure 100 may be configured to avoid the facet 22 existing when the second inclined plane 212 is designed by making one first inclined plane 211 rather than a plurality of second inclined planes 212, which may result in a small portion of potential stray light.

The first inclined plane 211 needs to do: the projection length in the vertical direction is less than the distance b from the intersection point of the first inclined plane 211 and the lower critical light to the horizontal base plane below the bottom plate 11, wherein the term is defined as follows:

the lower critical ray is defined as: the light emitted by the light source is emitted to the connecting line of the effective lower edge of the lens; wherein the definition of the "valid" two words is: the lens actually enters the light surface effectively.

For the internal light source 4, the first inclined plane 211 has the advantages of reducing the area of the small plane and reducing the stray light problem caused by the small plane; advantages of the second ramp 212: because single length is less, turns over an angle unrestricted, can reduce and increase along with the regional and the lens apart from of inside stray light concentrated reflection, if meet that the regional and the lens apart from of inside stray light concentrated reflection is little, the regional position of inside stray light concentrated reflection is far away from the module internal light source distance promptly, and the second inclined plane can design a flexible way and turn over an angle, avoids turning over an angle when less the light easily takes place to reflect to thick lens and outside and leads to the stray light problem.

For the external light source 40, the first slope 211 has advantages of reduced facet area and reduced internal stray light; advantages of the second ramp 212: the turnover angle is not limited, the turnover angle can be increased along with the increase of the distance between the sunlight focusing high-risk position and the lens, if the distance between the sunlight focusing high-risk position and the lens is large, namely the sunlight focusing high-risk position is close to the distance between the sunlight focusing high-risk position and the internal light source of the module, the second inclined plane can flexibly design the turnover angle, and the problem that when the turnover angle is small, the external light is easy to generate large-angle reflection to the area near the internal light source to cause stray light and heat is avoided.

Example 2

The utility model also provides a car lamp module comprising the heat-insulating sheet turnover structure, and the car lamp module further comprises a support 3, an internal light source 4 and a thick lens 5, wherein one end of the support 3 is connected with the heat-insulating sheet turnover structure 100, and the other end of the support 3 is connected with the thick lens 5; the heat shield folding structure 100 reflects the internal light source 4 onto the support 3, and the support 3 absorbs the light source.

As shown in fig. 8, the light path of the internal light source 4 irradiates the interior of the vehicle lamp module, and the light path direction mainly includes the following three types:

the solid line represents that the light path of the internal light source 4 irradiates the back of the inclined plane 21, the light path is reflected downwards to the bracket 3, and the bracket 3 absorbs the reflected light path;

or, the dotted line represents that the light path of the internal light source 4 directly irradiates to the bracket 3 through the opening of the turnover part 2, and the bracket 3 absorbs the direct light path;

or, the dotted line represents that the light path of the internal light source 4 irradiates on the front surface of the facet 22 to form reflection, the light path reflected to the back of the inclined plane 21 is shielded and then reflected to the bracket 3 for the second time, and the bracket 3 absorbs the light path of the second reflection.

When the heat-insulating sheet folding structure 100 receives the external light source 40 except for the internal light source 4, the heat-insulating sheet folding structure 100 reflects the external light source 40 onto the support 3, and the support 3 absorbs the light source; or the heat insulation sheet folding structure 100 reflects the external light source 40 to the outside of the module.

As shown in fig. 9, the light path of the external light source 42 irradiates the interior of the vehicle lamp module, and the light path mainly includes the following three types:

the solid line represents that the light path of the external light source 40 irradiates on the front surface of the facet 22, the facet 22 reflects the light path to the support 3, and the support 3 absorbs the light path;

or, the dotted line represents that the light path of the external light source 40 is irradiated on the front surface of the facet 22, the facet 22 reflects the light path to the front surface of the inclined surface 21, the inclined surface 21 reflects the light path to the bracket 3 for the second time, and the bracket 3 absorbs the light path;

or, the dotted line represents that the light path of the external light source 40 irradiates on the front surface of the inclined plane 21, the inclined plane 21 reflects the light path to the support 3 or the thick lens 5, the light path reflected to the support 3 is absorbed by the support 3, and the light path reflected to the thick lens 5 is directly refracted to the outside of the module.

More specifically, the external light source 40 refers to natural light or the rest of the external environment.

Example 3

The embodiment 3 is completed on the basis of the embodiment 1 or the embodiment 2, and specifically:

considering that there is still some sunlight reflected to the light source inside, the inclined plane 21 can be changed to black by a black paint spraying process, thereby increasing the light absorption rate and reducing the influence of sunlight focusing. Preferably, the slope 21 of the metal material is sprayed with a ferrous metal paint.

Or, according to the actual situation in the simulation lamp, the sunlight focusing is reduced through the turnover structures with different heights.

Through the mode, heat accumulation of the area near the light source of the rear car lamp module caused by sunlight after the sunlight is reflected in the car lamp module is reduced. Since the connecting support is a black part, the reflection performance is poor, and the reflection behind the black support is not considered.

The folding structure 100 can improve the ventilation of the heat insulation sheet and the bracket 3, further dredge and circulate heat, and reduce the risk of sunlight focusing.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the utility model. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (9)

1. The heat insulation sheet turnover structure is characterized by comprising a shell (1) and turnover pieces (2), wherein the turnover pieces (2) are uniformly distributed on the shell (1);

the shell (1) comprises a bottom plate (11), side plates (12) and a fixing plate (13), wherein the two sides of the bottom plate (11) are respectively connected with the side plates (12), one end of the bottom plate (11) is connected with the fixing plate (13), and the bottom plate (11) is provided with the turnover piece (2).

2. A heat insulating sheet folding structure according to claim 1, wherein said folding member (2) is punched from said bottom plate (11), and said folding member (2) is provided with an opening.

3. A heat insulating sheet folding structure according to claim 2, characterized in that the punching angle of the folding piece (2) is 5 ° to 60 °.

4. A heat shield turnover structure according to claim 3, characterised in that said turnover element (2) comprises an inclined plane (21) and a facet (22), said inclined plane (21) being connected to said facet (22), said facet (22) being located at the same level as said base plate (11).

5. A heat shield folding structure according to claim 4, characterized in that said inclined plane (21) is in the form of a first inclined plane (211) and a second inclined plane (212), said first inclined plane (211) or/and said second inclined plane (212) being stamped on said folding element (2).

6. A car lamp module comprising the heat-insulating sheet folding structure as claimed in claim 5, further comprising a support (3), an internal light source (4) and a thick lens (5), wherein one end of the support (3) is connected with the heat-insulating sheet folding structure (100), and the other end of the support (3) is connected with the thick lens (5);

the heat insulation sheet turnover structure (100) reflects the internal light source (4) to the support (3), and the support (3) absorbs the light source.

7. The vehicle lamp module according to claim 6, wherein the light path of the internal light source (4) irradiates on the back of the inclined surface (21), the light path is reflected downwards to the bracket (3), and the bracket (3) absorbs the reflected light path;

or the light path of the internal light source (4) directly irradiates to the support (3) through the opening of the turnover piece (2), and the support (3) absorbs the direct light path;

or the light path of the internal light source (4) irradiates on the front surface of the small plane (22) to form reflection, the light path reflected to the back of the inclined plane (21) is shielded and then reflected to the support (3) for the second time, and the support (3) absorbs the light path of the second reflection.

8. The vehicle lamp module according to claim 6, wherein when the heat shield folding structure (100) receives an external light source (40) other than the internal light source (4), the heat shield folding structure (100) reflects the external light source (40) onto the bracket (3), and the bracket (3) absorbs the light source; or the heat insulation sheet turnover structure (100) reflects the external light source (40) to the outside of the module.

9. The vehicle lamp module according to claim 8, wherein the light path of the external light source (40) is irradiated on the front surface of the small plane (22), the small plane (22) reflects the light path to the bracket (3), and the bracket (3) absorbs the light path;

or the light path of the external light source (40) irradiates on the front surface of the small plane (22), the small plane (22) reflects the light path to the front surface of the inclined plane (21), the inclined plane (21) reflects the light path to the support (3) for the second time, and the support (3) absorbs the light path;

or the light path of the external light source (40) irradiates on the front surface of the inclined plane (21), the inclined plane (21) reflects the light path to the support (3) or the thick lens (5), the light path reflected to the support (3) is absorbed by the support (3), and the light path reflected to the thick lens (5) is refracted to the outside of the module.

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