CN213019456U

CN213019456U - Novel LED type car light

Info

Publication number: CN213019456U
Application number: CN202022077303.7U
Authority: CN
Inventors: 郭京彬; 郭笑函
Original assignee: Chongqing Luyou Photoelectric Co ltd
Current assignee: Chongqing Luyou Photoelectric Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-04-20
Anticipated expiration: 2030-09-21

Abstract

A novel LED type automobile lamp comprises a shell, an opening at one end of the shell, and a light-transmitting dustproof sheet arranged at the opening end of the shell; the parabolic mirror and the heat conducting column are both arranged in the shell, and one end of the heat conducting column is connected with the bottom of the parabolic mirror; the parabolic mirror is obtained by rotating a parabola 360 degrees around a central axis; the LED lamp is uniformly arranged on the heat conducting column along the circumferential direction, the LED lamp reflects light rays by utilizing the paraboloidal mirror, the base of the LED lamp is fixed on the outer wall of the heat conducting column, and the top of the LED lamp faces to the inner surface of the paraboloidal mirror; making a central line for each LED lamp, wherein all the central lines are intersected on the focus of the parabolic mirror; and each LED lamp is sleeved with a condensing lens. The LED lamp is arranged on the heat conducting column, the focus of the LED lamp is deviated relative to the parabolic mirror, and because the condensing lens is arranged on the upper cover of the LED lamp, light rays emitted by the LED lamp are reflected by the parabolic mirror relative to the part emitted from the focus. The light condensation is stronger than the light condensation of the parabolic mirror structure of the traditional LED lamp, and the light scattering property is low.

Description

Novel LED type car light

Technical Field

The utility model relates to the field of lighting, concretely relates to novel LED type car light.

Background

The structure adopted in the conventional automobile lamp mainly comprises an LED lamp 4 and a reflecting cup, as shown in FIG. 1, the structure adopted by the reflecting cup is a paraboloid, the paraboloid is a paraboloidal mirror formed by rotating a parabola 360 degrees along a central shaft, the LED lamp 4 is arranged on the focus of the central shaft, and the head of the LED lamp 4 faces to an opening of the reflecting cup. When the LED lamp 4 emits light, since the LED lamp 4 is installed at the focal point, the light emitted from the LED lamp 4 is reflected by the parabolic mirror and then emitted, and the emitted light is parallel to the central axis.

Adopt this kind of mode to have following problem, firstly, because the luminous intensity distribution of LED lamp 4 does, perpendicular to center pin light luminous intensity is the highest, and the contained angle of light and center pin is big more, then the light intensity is weaker. Therefore, the light emitted by the LED lamp 4 is the light with the strongest light intensity, which forms an angle of 0-30 degrees with the central axis, but the light within the angle range cannot irradiate the parabolic mirror surface, so that the light is dissipated directly and wasted. The LED can irradiate the parabolic mirror, and the angle between the light reflected by the parabolic mirror and the central axis is necessarily greater than 60 degrees, so that the partial luminous flux is far lower than the total luminous flux emitted by the LED.

The distance between the light rays emitted by the LED lamp 4 by utilizing the traditional parabolic mirror is not far enough, and if the intensity of the light is to be increased, on one hand, a high-power LED lamp is needed, but after the power of the LED lamp is increased, the problem of heat dissipation needs to be solved, otherwise, the LED lamp is easy to burn out.

Meanwhile, by adopting the traditional LED lamp structure, if a plurality of LED lamps are adopted, each LED lamp cannot be placed at the focus at the same time, and the LED lamps can only shift relative to the focus. Therefore, the utilization rate of the emitted light is not high.

In order to solve the above problems, a high-concentration LED lighting lamp in which a plurality of dispersed light emitting points are converged at the same point is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide a novel LED type car light, concrete technical scheme is as follows:

the utility model provides a novel LED type car light which characterized in that: the LED lamp comprises a shell (1), a parabolic mirror (2), a heat conducting column (8), at least one LED lamp (4) and a light-transmitting dustproof sheet (5);

one end of the shell (1) is opened, and a light-transmitting dustproof sheet (5) is arranged at the opening end of the shell (1);

the parabolic mirror (2) and the heat conducting column are both arranged in the shell (1), and one end of the heat conducting column (8) is connected with the bottom of the parabolic mirror (2);

the parabolic mirror (2) is obtained by rotating a parabola around a central axis;

the LED lamps (4) are uniformly arranged on the heat conducting column (8) along the circumferential direction, the parabolic mirror (2) is used for reflecting light rays of the LED lamps (4), the base of each LED lamp (4) is fixed on the outer wall of the heat conducting column (8), and the top of each LED lamp (4) faces to the inner surface of the parabolic mirror (2);

the LED lamp (4) is positioned on the focal plane of the parabolic mirror (2) or is arranged adjacent to the focal plane;

the condensing lens (6) is arranged above each LED lamp (4) through a support frame (11), and a gap is formed between the condensing lens (6) and the LED lamp;

the condenser lens (6) is used for converging the light emitting point of the LED lamp (4) to the focus of the parabolic mirror (2).

For better realization the utility model discloses, can further: the heat conduction column is of a strip structure, and the two LED lamps are respectively arranged on the upper surface and the lower surface of the heat conduction column.

Because the light emitted by the LED lamp 4 belongs to the light with the strongest light intensity, and the included angle between the light and the central axis is 0-30 degrees, the light in the angle range can effectively irradiate on the parabolic mirror surface and is emitted along the direction parallel to the central axis by adopting the structure.

Further: a heat dissipation liquid groove (9) is formed in the heat conduction column (8), the inlet end of the heat dissipation liquid groove (9) is communicated with the outlet end of the circulating heat dissipation device, the outlet end of the heat dissipation liquid groove is communicated with the inlet end of the circulating heat dissipation device, and the heat dissipation liquid groove is used for taking away heat dissipated by the LED lamp (4).

Further: the heat conducting column is provided with a reflector (10), the reflector (10) is adjacent to the LED lamp (4), and the reflector (10) is arranged in an upward inclined manner relative to the plane of the heat conducting column (8). On the one hand, the light reflecting cup is used for shielding the scattered light, and on the other hand, the light is reflected to the light reflecting cup, so that the utilization rate of light flux is improved.

The utility model has the advantages that:

firstly, the LED lamp is arranged on the heat conducting column, the focus of the LED lamp is deviated relative to the parabolic mirror, and because the condensing lens is covered on the LED lamp, light rays emitted by the LED lamp are emitted from the focus equivalently, and the strongest light part is reflected by the parabolic mirror. The light condensation is stronger than the light condensation of the parabolic mirror structure of the traditional LED lamp, and the light scattering property is low.

Secondly, can set up many LED lamps in the heat conduction post periphery, owing to seted up the heat dissipation liquid groove in the heat conduction post is inside, the heat that the LED lamp gived off can be derived to the outside through the liquid in the heat dissipation liquid groove, and the heat abstractor through the outside setting gives off the heat.

Therefore, under the condition of solving the heat dissipation problem of the LED lamp, the power of the LED lamp can be improved, the junction temperature can be reduced, the luminous efficiency can be improved, and the LED lamp can work stably. And a plurality of LED lamps are simultaneously installed, and the light emitted by each LED lamp is equivalent to the light emitted from the focus.

Drawings

FIG. 1 is a schematic view of the prior art structure of the present invention;

FIG. 2 is a sectional view A-A of FIG. 3;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 4 is a schematic view of the working principle of the present invention;

FIG. 5 is a schematic explanatory view;

FIG. 6 is a view of a first form of a heat sink liquid tank;

FIG. 7 is a view showing a second form of a heat-dissipating liquid tank;

FIG. 8 is a view of a third form of a radiator fluid tank;

the reference numbers in the drawings are as follows, the shell 1, the parabolic mirror 2, a first curve 3-1, a second curve 3-2, a third curve section 3-21, a fourth curve section 3-22, the LED lamp 4, the light-transmitting dustproof sheet 5, the condensing lens 6, the graphene 7, the heat conducting column 8, the heat-dissipating liquid groove 9, the light-reflecting sheet 10 and the support frame 11.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

As shown in fig. 2 and 3: a novel LED type automobile lamp comprises a shell 1, a parabolic mirror 2, a heat conducting column 8, two LED lamps 4 and a light-transmitting dustproof sheet 5, wherein the parabolic mirror 2 is obtained by rotating a parabola 360 degrees around a central shaft;

the shell 1 is in a strip-shaped structure, the right end of the shell 1 is provided with an opening, and a light-transmitting dustproof sheet 5 is arranged at the opening end of the shell 1;

the parabolic mirror 2 and the heat conducting column 8 are both arranged in the shell 1, the heat conducting column 8 is of a strip structure, and the central axis of the heat conducting column 8 coincides with the central axis of the parabolic mirror 2.

Two LED lamps 4 are respectively arranged on the upper surface and the lower surface of the heat conducting column 8.

Wherein, 8 position bar structures of heat conduction post are only a concrete form of this embodiment, and this heat conduction post 8 is not limited to bar structure, at bar structure's upper surface and lower surface installation LED lamp. The LED lamp can be of a polygonal prism structure, specifically of a polygonal prism or a cylindrical structure such as a triangular prism and a quadrangular prism, and the LED lamp is correspondingly arranged on each prism surface.

The LED lamp 4 reflects light rays by utilizing the parabolic mirror 2, the base of the LED lamp 4 is fixed on the outer wall of the heat conducting column 8, the top of the LED lamp 4 faces the inner surface of the parabolic mirror 2, a central line is made for each LED lamp 4, all the central lines are intersected on the focus of the parabolic mirror 2, and a condensing lens 6 is sleeved on each LED lamp 4.

The bottom of the parabolic mirror 2 is fixed at the closed end of the housing 1, the left end of the heat conducting column 8 is connected with the bottom of the parabolic mirror 2 and penetrates out of the closed end of the housing 1, a heat dissipating liquid tank is arranged in the heat conducting column, in the embodiment, the heat dissipating liquid tank can adopt the structure as shown in fig. 6 to 8, but is not limited to the form, the inlet end of the heat dissipating liquid tank is communicated with the outlet end of the circulating heat dissipating device, the outlet end of the heat dissipating liquid tank is communicated with the inlet end of the circulating heat dissipating device, and the heat dissipating liquid tank is used for taking out the heat dissipated by the LED lamp to the circulating heat dissipating device and dissipating the heat to the outside through the circulating heat dissipating device;

because the central axis of the parabolic mirror 2 coincides with the central axis of the heat conducting column 8, the heat conducting column 8 has thickness, the two LED lamps 4 are respectively installed on the upper surface and the lower surface of the heat conducting column 8, the two LED lamps 4 are respectively vertically offset relative to the focus of the parabolic mirror 2, the LED lamps 4 are covered with the condensing lens 6, and the condensing lens 6 is a convex lens, so that the light emitting point of the LED lamps 4 is equivalent to the offset back focus position.

As shown in fig. 5, in the present embodiment, the focal point of the parabolic mirror 2 is set to be F, and is located on the central plane passing through the heat conducting pillar 8, the image of the LED lamp 4 is located on the focal plane of the condensing lens 6 and is coincident with the focal point F, u is the object distance, and the object distance is defined as the distance from the LED light emitting point to the condensing lens.

v is the image distance, and the distance from the condensing lens to the light-emitting point is the image distance, and in this embodiment, v is the focal point where the image distance of the light-emitting point of the LED lamp needs to be converged to the parabolic mirror 2.

And s is the distance of the luminous point to be transferred.

f1 and f2 are focal points of the condenser lenses 6 on the corresponding sides.

In this example, the algorithm relationship among u, v, and f is 1/f ═ 1/u + 1/v.

If u is within one focal length of the condensing convex lens, v is a virtual image of u, which is calculated as a negative value in the formula:

v＝(u*f)/(u-f)。

s＝|v|-u。

meanwhile, as shown in fig. 4, the parabola includes a first curve 3-1 and a second curve 3-2, since the base of the LED lamp 4 is fixed on the outer wall of the heat conducting column 8, and the top of the LED lamp 4 faces the inner surface of the parabolic mirror 2, the included angle between the emitted light and the central axis of the LED4 is 0-30 degrees, which belongs to the light with the strongest light intensity and the most concentrated light flux.

Claims

1. The utility model provides a novel LED type car light which characterized in that: the LED lamp comprises a shell (1), a parabolic mirror (2), a heat conducting column (8), at least one LED lamp (4) and a light-transmitting dustproof sheet (5);

a condensing lens (6) is arranged above each LED lamp (4) through a support frame (11), and a gap is formed between each condensing lens (6) and each LED lamp;

2. The novel LED type automobile lamp according to claim 1, characterized in that: the heat conducting column (8) is of a strip-shaped structure, and the two LED lamps (4) are respectively arranged on the upper surface and the lower surface of the heat conducting column (8).

3. The novel LED type automobile lamp according to claim 1, characterized in that: a heat dissipation liquid groove (9) is formed in the heat conduction column (8), the inlet end of the heat dissipation liquid groove (9) is communicated with the outlet end of the circulating heat dissipation device, the outlet end of the heat dissipation liquid groove is communicated with the inlet end of the circulating heat dissipation device, and the heat dissipation liquid groove is used for taking away heat dissipated by the LED lamp (4).

4. The novel LED type automobile lamp according to claim 1, characterized in that: the heat conducting column is provided with a reflector (10), the reflector (10) is adjacent to the LED lamp (4), and the reflector (10) is arranged in an upward inclined manner relative to the plane of the heat conducting column (8).