CN106524038B

CN106524038B - Multi-light source module and automobile lamp

Info

Publication number: CN106524038B
Application number: CN201611090760.1A
Authority: CN
Inventors: 张韬; 陈子维; 陈兆禹; 李志兵
Original assignee: HA Automotive Systems Inc
Current assignee: Huayu Vision Technology Wuhan Co ltd
Priority date: 2016-11-30
Filing date: 2016-11-30
Publication date: 2023-05-23
Anticipated expiration: 2036-11-30
Also published as: CN106524038A

Abstract

The invention provides a multi-light source module and an automobile lamp, which relate to the technical field of lamp light sources, and the multi-light source module comprises a light collecting assembly and a shading and condensing assembly which are sequentially arranged, wherein the light collecting assembly comprises: a central light collecting member and an auxiliary light collecting member disposed on a heat sink; the central light collecting member includes a central light collecting element and a central light source disposed in the central light collecting element; the auxiliary light collecting member includes a plurality of auxiliary light sources and an auxiliary light collecting element for collecting light emitted from the auxiliary light sources. The central light source and each auxiliary light source are respectively arranged at different positions on the radiator, so that the effective heat dissipation area of the multi-light source module is increased, the heat resistance of the optical system of the multi-light source module is improved, and an active heat dissipation device is not required to be arranged.

Description

Multi-light source module and automobile lamp

Technical Field

The invention relates to the technical field of car light sources, in particular to a multi-light source module and a car lamp.

Background

At present, the LED module unit is widely applied in the automobile lighting industry. The conventional single light source design method requires a high power LED chip to achieve high luminous flux output, and this method causes heat to be spread around the LED chip and causes the semiconductor junction temperature of the LED to rise, resulting in attenuation of the light efficiency. As shown in fig. 1, when the LED module unit adopts a single light source, the LED module unit includes a light collecting member, a light shielding plate 10 and a lens 20, which are sequentially disposed, the light collecting member includes an LED light source 31 and a reflector 32 corresponding to the LED light source 31, the LED light source 31 is disposed on the radiator 4, the focal point of the reflecting surface of the reflector 32 is the position of the center of the LED light source 31, and the light emitted by the LED light source 31 is collected by the reflecting surface of the reflector 32 and then emitted by the light shielding plate 10 and the lens 20. The high-power LED light source 31 emits high luminous flux and generates large heat, and the radiator 41 cannot effectively radiate heat in time due to the small size of the LED light source, so that the existing LED module unit adopting a single light source is limited by heat radiation performance, and the expected design effect cannot be achieved. Therefore, an active heat sink, typically a fan 42, needs to be added to the LED module unit to increase the heat dissipation speed. The addition of active heat sinks increases the cost and system instability.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a multi-light source module and an automobile lamp for solving the above-mentioned problems in the prior art.

In order to solve the technical problem, the present invention provides a multi-light source module, including a light collecting assembly and a shading and condensing assembly, which are sequentially arranged, wherein the light collecting assembly includes: a central light collecting member and an auxiliary light collecting member disposed on a heat sink; the central light collecting component comprises a central light collecting element and a central light source arranged in the central light collecting element, one side of the central light collecting element is a central light outlet, and the central light outlet faces the shading and condensing component; the auxiliary light collecting component comprises a plurality of auxiliary light sources and auxiliary light collecting elements, wherein the auxiliary light collecting elements are used for collecting light rays emitted by the auxiliary light sources, and the auxiliary light sources are respectively arranged at two sides of the central light source; the light emitted by the central light outlet forms central main light through the shading and condensing assembly, the light collected by the auxiliary light collecting element passes through the shading and condensing assembly to form side auxiliary light overlapped with the central main light, and the side auxiliary light formed by the auxiliary light source on the same side of the central light collecting component is on the same side of the central main light.

Preferably, the radiator comprises a vertical radiating part and a horizontal radiating part, the central light source is arranged on the vertical radiating part, and all the auxiliary light sources are arranged on the horizontal radiating part.

Preferably, the number of the auxiliary light sources on both sides of the central light source is the same.

Further, when the number of all the auxiliary light collecting parts is two, the two auxiliary light sources are respectively positioned at two sides of the central light source, a vertical plane passing through the midpoint of the connecting line of the two auxiliary light sources is a central axis surface, and the central light source is positioned at the central axis surface.

Further, the distance between the two auxiliary light sources is 20-40mm.

Preferably, the shading and condensing assembly comprises a lens and a shading plate which are sequentially arranged, and the central light outlet faces the shading plate.

Preferably, the light shielding plate is controlled by an electromagnetic valve.

Preferably, the auxiliary light collecting element is an ellipsoidal mirror.

Preferably, the central light source and the auxiliary light source are both LED light sources.

The invention also relates to an automobile lamp, which adopts the multi-light source module.

The multi-light source module and the automobile lamp have the following beneficial effects: the invention changes the existing single light source into the structure of the central light source and a plurality of auxiliary light sources, because the number of the light sources is increased, compared with the existing single light source, the power of the central light source and each auxiliary light source is smaller, and the central light source and each auxiliary light source are respectively arranged at different positions on the radiator, so the effective heat dissipation area of the invention is increased, and the heat resistance of the optical system of the multi-light source module is improved.

Drawings

Fig. 1 is a schematic view showing the internal structure of a conventional LED module unit.

Fig. 2 is a schematic perspective view of the exterior of the multi-light source module according to the present embodiment.

Fig. 3 is a schematic perspective view illustrating an internal structure of the multi-light source module according to the present embodiment.

Fig. 4 is a schematic cross-sectional view of the inside of the multi-light source module according to the present embodiment.

Fig. 5 is a schematic cross-sectional view of the auxiliary light collecting element on one side of the central light source of the multi-light source module according to the present embodiment.

Fig. 6 is a schematic perspective side sectional view of the auxiliary light collecting element on one side of the central light source of the multi-light source module according to the present embodiment.

Fig. 7 is a schematic top view of the central light source and the auxiliary light source of the multi-light source module according to the present embodiment.

Description of the reference numerals

10. Shading plate

20. Lens

31 LED light source

32. Reflecting mirror

41. Radiator

42. Fan with fan body

100. Shading and condensing assembly

110. Lens

120. Shading plate

200. Radiator

210. Vertical heat dissipation part

220. Horizontal heat dissipation part

3001. Central main light

Light emitted from L301 central light outlet

310. Central light collecting element

311. Center ray exit

320. Central light source

400. Auxiliary light collecting member

410. Auxiliary light source

420. Auxiliary light collecting element

4001. Side auxiliary light

Light collected by the L401 auxiliary light collecting element

Detailed Description

Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.

Please refer to the accompanying drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the invention, which is defined by the claims, but rather by the claims. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.

As shown in fig. 1 to 7, the multi-light source module of the present embodiment includes a light collecting assembly and a shading and condensing assembly 100 sequentially disposed, the light collecting assembly includes: a central light collecting member and an auxiliary light collecting member 400 disposed on a heat sink 200;

the central light collecting part comprises a central light collecting element 310 and a central light source 320 arranged in the central light collecting element 310, one side of the central light collecting element 310 is a central light outlet 311, and the central light outlet 311 faces the shading and condensing assembly 100;

the auxiliary light collecting part 400 includes a plurality of auxiliary light sources 410 and auxiliary light collecting elements 420 for collecting light emitted from the auxiliary light sources 410, the plurality of auxiliary light sources 410 being disposed at both sides of the central light source 320, respectively;

the light L301 emitted from the central light outlet 311 forms the central main light 3001 through the light shielding and condensing assembly 100, the light L401 collected by the auxiliary light collecting element 420 forms the side auxiliary light 4001 overlapping with the central main light 3001 through the light shielding and condensing assembly 100, and the side auxiliary light 4001 formed by the auxiliary light source 410 at the same side of the central light collecting member is at the same side of the central main light 3001. In the present embodiment, the side assist light 4001 formed by the assist light source 410 on the left side of the central light collecting member is on the right side of the central main light 3001, and the side assist light 4001 formed by the assist light source 410 on the right side of the central light collecting member is on the left side of the central main light 3001.

The present invention replaces the existing single light source with the structure of the central light source 320 and the plurality of auxiliary light sources 410, and as the number of the light sources is increased, the power of the central light source 320 and the power of each auxiliary light source 410 are smaller than those of the existing single light source, and the power of the central light source 320 and each auxiliary light source 410 are respectively arranged at different positions on the radiator, so that the effective heat dissipation area of the present invention is increased, and the heat resistance of the optical system of the multi-light source module is improved, and the present invention also does not need to install an active heat dissipation device.

The central light collecting element 310 is a condenser, and the central main light 3001 is implemented by the condenser, and the condenser converges the light emitted by the central light source 320 to the focal point of the lens 110 and projects the light from the lens 110.

To facilitate the central light source 320 and each of the auxiliary light sources 410 to be disposed at different positions on the upper surface of the heat sink, the heat sink includes a vertical heat dissipation portion 210 and a horizontal heat dissipation portion 220, the central light source 320 is disposed on the vertical heat dissipation portion 210, and all of the auxiliary light sources 410 are mounted on the horizontal heat dissipation portion 220.

In order to form a uniform overall light pattern, the auxiliary light sources are positioned on both sides of the central light source in the same number.

When the number of all the auxiliary light collecting members 400 is two, the two auxiliary light sources 410 are respectively located at both sides of the central light source 320, a vertical plane passing through a midpoint of a line connecting the two auxiliary light sources 410 is a central axis, and the central light source 320 is located at the central axis. The structure can make the formed integral light pattern more uniform; since the two auxiliary light sources 410 and the central light source 320 are respectively responsible for different light type regions, the brightness of the light type regions can be controlled by controlling the current of the two auxiliary light sources 410 and the current of the central light source 320. Thus, the static self-adaptive variable light type low beam can be realized, and good customer experience is provided for consumers.

Because too small a distance between the two auxiliary light sources 410 may reduce the efficiency of the central light source 320, too large a distance between the two auxiliary light sources 410 may make it difficult to well link the light patterns; the distance between the two auxiliary light sources 410 is 20-40mm, so that the efficiency of the central light source 320 and the linking effect of the light type can be considered.

The light-shielding and condensing assembly 100 includes a lens 110 and a light-shielding plate 120 sequentially disposed in sequence, and a central light outlet 311 faces the light-shielding plate 120. In this embodiment, the two auxiliary light sources 410 and the central light source 320 share one light shielding plate 120, and the light shielding plate 120 is disposed at the focal point of the lens 110 to shield the central light collecting member and the auxiliary light collecting member 400 to form a low beam cutoff line.

When the light shielding plate is directly disposed on the heat sink 200, the light shielding plate 120 and the heat sink 120 become a single component, and the module can only realize the low beam function.

When the shade 120 is controlled by an electromagnetic valve, the structure can enable the multi-light source module of the embodiment to be used for realizing an integrated structure of high beam and low beam lights.

The auxiliary light collecting element 420 is an ellipsoidal mirror. The auxiliary light collecting component 400 adopts an ellipsoidal reflector, and has two focuses according to the ellipsoidal surface of the ellipsoidal reflector, and the light of the auxiliary light source 410 is reflected to the focus of the lens 110 through the ellipsoidal surface of the ellipsoidal reflector and is projected out by the lens 110, so that the position and distribution of the corresponding auxiliary light source 410 are adjusted according to actual needs to achieve the required light pattern.

The central light source 320 and the auxiliary light source 410 are LED light sources.

The embodiment also relates to an automobile lamp, and a multi-light source module adopted by the automobile lamp. In this embodiment, the multiple light source module is mounted on an automobile.

The light sources are arranged in a scattered manner, so that the heat dissipation performance of the light sources can be effectively improved, active heat dissipation parts are omitted, and the cost is reduced. The invention can realize higher luminous flux output, and the luminous flux can reach 900lm.

In conclusion, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. A multiple light source module, including light collection subassembly and shading spotlight subassembly (100) that set gradually, its characterized in that, light collection subassembly includes: a central light collecting member and an auxiliary light collecting member (400) disposed on a heat sink (200); the central light collecting component comprises a central light collecting element (310) and a central light source (320) arranged in the central light collecting element (310), one side of the central light collecting element (310) is provided with a central light outlet (311), and the central light outlet (311) faces the shading and condensing assembly (100);

the auxiliary light collecting component (400) comprises a plurality of auxiliary light sources (410) and auxiliary light collecting elements (420) for collecting light rays emitted by the auxiliary light sources (410), and the auxiliary light sources (410) are respectively arranged at two sides of the central light source (320);

the light emitted by the central light outlet (311) forms central main light (3001) through the shading and condensing assembly (100), the light collected by the auxiliary light collecting element (420) passes through the shading and condensing assembly (100) to form side auxiliary light (4001) overlapped with the central main light (3001), and the side auxiliary light (4001) formed by the auxiliary light source (410) positioned on the same side of the central light collecting element is positioned on the same side of the central main light (3001); the shading and condensing assembly (100) comprises a lens (110) and a shading plate (120) which are sequentially arranged, and the central light ray outlet (311) faces the shading plate (120); the auxiliary light source (410) and the central light source (320) share the light shielding plate (120), and the light shielding plate (120) is arranged at the focus of the lens (110) so as to shield the central light collecting component and the auxiliary light collecting component (400) to form a low beam cutoff line;

the central light source (320) and each auxiliary light source (410) are respectively arranged at different positions of the radiator (200); the radiator (200) comprises a vertical radiating part (210) and a horizontal radiating part (220), the central light source (320) is arranged on the vertical radiating part (210), and all the auxiliary light sources (410) are arranged on the horizontal radiating part (220).

2. The multiple light source module of claim 1, wherein: the number of auxiliary light sources (410) on both sides of the central light source (320) is the same.

3. The multiple light source module of claim 2, wherein: when the number of all the auxiliary light collecting members (400) is two, two auxiliary light sources (410) are respectively positioned at two sides of the central light source (320), a vertical plane passing through the midpoint of the connection line of the two auxiliary light sources (410) is a central axis plane, and the central light source (320) is positioned at the central axis plane.

4. A multiple light source module as defined in claim 3, wherein: the distance between the two auxiliary light sources (410) is 20-40mm.

5. The multiple light source module of claim 1, wherein: the shading plate (120) is controlled by an electromagnetic valve.

6. The multiple light source module of claim 1, wherein: the auxiliary light collecting element (420) is an ellipsoidal mirror.

7. The multiple light source module of claim 1, wherein: the central light source (320) and the auxiliary light source (410) are both LED light sources.

8. An automotive lamp, characterized in that it employs the multiple light source module according to any one of claims 1 to 7.