CN220506562U - Multi-light source automobile headlamp - Google Patents

Abstract

The utility model relates to a multi-light source automobile headlamp, comprising: the automobile lamp comprises a heat dissipation substrate, a low beam light source module, a high beam light source module, an auxiliary high beam module, a light cutting structure and an automobile lamp lens, wherein the low beam light source module is arranged on the heat dissipation substrate and used for emitting low beam, the high beam light source module is used for emitting high beam, the auxiliary high beam module is used for emitting auxiliary high beam, the light cutting structure is arranged on the light emitting paths of the low beam and the high beam, and the automobile lamp lens is simultaneously arranged on the light emitting paths of the low beam, the high beam and the auxiliary high beam; the bottom of the radiating substrate is provided with a first radiating part, and one end of the radiating substrate, which is far away from the car lamp lens, is provided with a second radiating part. The auxiliary high beam module used for emitting auxiliary high beam is added, so that the illumination effect can be improved; through set up first radiating part in radiating basal plate bottom and set up the second radiating part in radiating basal plate one end of keeping away from car lamp lens, both dispel the heat to whole lamp simultaneously, can not increase whole lamp length when improving radiating efficiency, realize illumination and the efficient heat dissipation of hi-lite simultaneously.

Description

Multi-light source automobile headlamp

Technical Field

The utility model relates to the technical field of automobile illumination, in particular to a multi-light source automobile headlamp.

Background

The front-light of the automobile in the aftermarket at present mainly comprises a double-light source, a low-beam light source and a high-beam light source, and the switching of the high beam and the low beam is realized by using an electromagnetic valve cut-off structure. However, the existing high beam lighting effect of the automotive headlamp still has the defects that when the vehicle runs under dim conditions or encounters severe weather such as rainy and foggy weather with low visibility, the far sight is limited, the vehicle driver is easy to generate danger, and when the vehicle turns, objects on the side of the vehicle cannot be seen clearly, and scratch is easy to occur on the vehicle, so that the lighting effect of the automotive lamp is still to be improved. In order to improve the lighting effect, an auxiliary high beam structure, such as a laser light source or an LED light source, is added in some car lamp technologies, which greatly improves the high beam lighting performance of the car lamp, but at the same time, also puts forward a higher requirement on the heat dissipation design of the whole car lamp. In addition, in order to better meet the lighting effect, the whole power of the headlamp on the market tends to be larger, the heat dissipation effect is insufficient, and the lamp shade can be aged rapidly after long-term use. Because the lamp-mounting space of the lens headlight is limited, high-brightness illumination and quick heat dissipation cannot be well considered, and therefore, how to ensure the service life of the headlight while considering high-brightness illumination and not increasing the length of the headlight is a great challenge for designing the headlight of the automobile.

Disclosure of Invention

Based on the above, the utility model aims to overcome at least one defect in the prior art, and provides the multi-light source automobile headlamp which can improve the lighting effect, realize high-brightness lighting and high-efficiency heat dissipation without increasing the length of the whole lamp, and enable the automobile lamp to operate continuously and smoothly.

The technical scheme is as follows:

a multi-light source automotive headlamp comprising: the automobile lamp comprises a heat dissipation substrate, a low beam light source module, a high beam light source module, an auxiliary high beam module, a light cutting structure and an automobile lamp lens, wherein the low beam light source module is arranged on the heat dissipation substrate and used for emitting low beam, the high beam light source module is used for emitting high beam, the auxiliary high beam module is used for emitting auxiliary high beam, the light cutting structure is arranged on the light emitting paths of the low beam and the high beam, and the automobile lamp lens is simultaneously arranged on the light emitting paths of the low beam, the high beam and the auxiliary high beam; the bottom of the radiating substrate is provided with a first radiating part, and one end of the radiating substrate, which is far away from the car lamp lens, is provided with a second radiating part.

Defining the position of a final light-emitting lamp lens as the head of the head lamp along the light-emitting direction of the head lamp, and defining the tail of the head lamp as the tail of the head lamp in the opposite direction to the light-emitting direction of the head lamp; the head and tail positions of either component are defined with reference to the head and tail of the head lamp. And a second heat dissipation part is arranged at one end of the heat dissipation substrate, which is far away from the car lamp lens, namely, the tail part of the heat dissipation substrate is provided with the second heat dissipation part.

For the whole lamp of the automobile headlamp, high-brightness illumination can be realized by adding an auxiliary high beam module for emitting auxiliary high beam; through set up first radiating part and set up the second radiating part in the afterbody bottom the radiating substrate, both dispel the heat to whole lamp simultaneously, can not increase whole lamp length when improving radiating efficiency, realize illumination and the efficient heat dissipation of hi-lite simultaneously.

Preferably, the auxiliary high beam module comprises an auxiliary high beam module shell, an auxiliary LED module and an auxiliary laser module, wherein the auxiliary LED module and the auxiliary laser module are arranged on the auxiliary high beam module shell, and the auxiliary high beam module further comprises an auxiliary high beam module independent heat dissipation component for dissipating heat of the auxiliary high beam module and/or an auxiliary high beam module driving plate for supplying power to the auxiliary high beam module. The arrangement of the LED high beam module has the advantages of being large in LED light type and long in laser irradiation distance, and the lighting effect can be improved. The independent heat dissipation component of the auxiliary high beam module can independently dissipate heat of the auxiliary high beam module, and the heat dissipation effect of the whole lamp can be further improved. The auxiliary high beam module driving plate can independently supply power to the auxiliary high beam module, so that the size of the whole lamp driving plate can be reduced, the length of the car lamp can be reduced, the heat of the whole lamp can be relatively dispersed, and the heat dissipation effect of the whole lamp can be further improved. If the auxiliary high beam module has both functions, the heat dissipation effect of the whole lamp can be greatly improved.

Further preferably, the auxiliary high beam module is provided with an auxiliary high beam module independent heat dissipation part and an auxiliary high beam module driving plate at the same time. The independent heat dissipation part of auxiliary high beam module is arranged at the top or bottom of the auxiliary high beam module shell, and the auxiliary high beam module driving plate is arranged on the side surface of the auxiliary high beam module shell, which is back to the car lamp lens. Taking the top that supplementary high beam module independent heat dissipation part located supplementary high beam module shell as an example, supplementary high beam module independent heat dissipation part can reduce supplementary high beam module shell's temperature, further accelerates whole lamp inside heat circulation, and then further improves the radiating effect. The top of supplementary independent heat dissipation part of far-reaching headlamp module is equipped with the independent heat dissipation part safety cover of supplementary far-reaching headlamp module that is used for protecting it, sets up like this and can prolongs the independent heat dissipation part's of supplementary far-reaching headlamp module life. The protection cover of the independent heat dissipation part of the auxiliary high beam module is fixed on the top of the independent heat dissipation part of the auxiliary high beam module through screws.

Preferably, the independent heat dissipation component of the auxiliary high beam module is a fan; the fan cost is lower, through initiatively blowing external cold wind to supplementary far-reaching headlamp module shell, can play the effect to supplementary far-reaching headlamp module quick heat dissipation. An open cavity is arranged at the top of the auxiliary high beam module shell to accommodate an independent heat dissipation part of the auxiliary high beam module; the arrangement is convenient for the disassembly of the independent heat dissipation part of the auxiliary high beam module, and the maintenance and the replacement in the use process are convenient.

Preferably, the auxiliary LED module includes an auxiliary LED chip and an auxiliary LED light receiving structure for receiving light emitted from the auxiliary LED chip. More specifically, the LED light receiving structure may be a spherical reflective cup or a light receiving lens.

Preferably, the auxiliary laser module comprises lasers and wavelength converters, wherein the lasers and the wavelength converters are sequentially arranged along the light emitting direction of the head lamp, and the wavelength converters are used for converting the laser emitted by the lasers. The arrangement can ensure the light-emitting effect of the auxiliary high beam module. The auxiliary LED module driving plate is arranged in the headlamp body and is used for independently supplying power to the auxiliary LED module light-emitting device, so that the structural compactness of the auxiliary high beam module can be improved, and the auxiliary high beam module is suitable for the auxiliary high beam module with higher power.

Further preferably, the specific arrangement of the auxiliary high beam module comprises two schemes. Scheme one: the auxiliary laser module is one and wears to establish on auxiliary far-reaching headlamp module shell, and auxiliary LED module is two and set up on auxiliary far-reaching headlamp module shell is close to the side of car light lens one side to two auxiliary LED modules are located respectively auxiliary laser module both sides. Scheme II: the auxiliary laser modules are two and pass through the auxiliary high beam module shell, and the auxiliary LED module is arranged on the side surface of the auxiliary high beam module shell, which is close to one side of the car lamp lens, and is positioned between the two auxiliary laser modules. Considering that the cost of the laser module is higher, the comprehensive advantage of the scheme I in practical application is larger.

Preferably, the auxiliary laser module further comprises a collimating lens, a light-homogenizing diffusion sheet and a focusing lens, wherein the collimating lens, the light-homogenizing diffusion sheet and the focusing lens are arranged between the laser and the wavelength converter and are sequentially arranged along the light-emitting direction of the head lamp, the collimating lens is used for collimating laser rays emitted by the laser, the light-homogenizing diffusion sheet is used for homogenizing the laser rays emitted by the collimating lens, and the focusing lens is used for focusing the laser rays homogenized by the diffusion sheet onto the wavelength converter; the auxiliary laser module along the light emitting direction of the head lamp further comprises a light receiving lens for receiving the laser rays emitted by the wavelength converter. The auxiliary laser module can guarantee the illumination effect of auxiliary high beam finally emitted from the car lamp lens. The auxiliary laser module further comprises a collimating lens sleeve for installing a collimating lens, a focusing lens sleeve for installing a focusing lens and a light receiving lens sleeve for installing a light receiving lens, and the arrangement is convenient for installing and detaching the corresponding lens.

Preferably, the lamp lens includes a first lens part collecting the light beams of the low beam light source module and the high beam light source module and emitting the low beam light or the low beam light and the high beam light, and a second lens part collecting the light beams of the auxiliary high beam light and emitting the auxiliary high beam light, the second lens part including a first fly-eye lens for collecting and emitting the light beams of the auxiliary LED module and a second fly-eye lens for collecting and emitting the light beams of the auxiliary laser module, the second lens part being located in an upper half area of the lamp lens. The arrangement ensures that a plurality of light sources reasonably use one car lamp lens, thereby ensuring the light emitting effect.

Preferably, the outer side of the auxiliary high beam module housing is provided with radiating fins. The heat dissipation effect of the auxiliary high beam module shell can be further improved through the arrangement.

Preferably, the first heat dissipation part is a fan and the air outlet direction of the first heat dissipation part is opposite to the bottom of the heat dissipation substrate, and/or the second heat dissipation part is a fan and the air outlet direction of the second heat dissipation part is opposite to the end part, far away from the car lamp lens, of the heat dissipation substrate.

Preferably, the heat dissipation substrate comprises a transverse substrate and a vertical substrate perpendicular to the transverse substrate; the transverse substrate is generally in a step shape and comprises an upper step surface for installing a low beam light source module and a lower step surface for installing a high beam light source module, the lower step surface is close to the side where the lamp lens is located, and the auxiliary high beam light source module is installed on the vertical substrate.

Compared with the prior art, the utility model has the beneficial effects that: the multi-light source automobile headlamp can realize high-brightness illumination by adding the auxiliary high beam module for emitting auxiliary high beam; through set up first radiating part and set up the second radiating part in the afterbody bottom the radiating substrate, both dispel the heat to whole lamp simultaneously, can not increase whole lamp length when improving radiating efficiency, realize illumination and the efficient heat dissipation of hi-lite simultaneously.

Drawings

Fig. 1 is an exploded view of a multi-light source automotive headlamp according to embodiment 1.

Fig. 2 is a schematic diagram of a heat dissipating substrate in embodiment 1.

Fig. 3 is an exploded view of the auxiliary high beam module in embodiment 1.

Fig. 4 is a schematic structural view of a lens for a vehicle lamp according to embodiment 1.

Fig. 5 is an exploded view of the auxiliary high beam module in embodiment 2.

Reference numerals illustrate: 1. a lamp lens; 2. a lens holder; 3. a light cutting structure; 4. a heat-dissipating substrate; 5. a low beam light source board; 6. dipped beam reflecting cup; 7. a high beam light source board; 8. a high beam reflecting cup; 9. a high beam adapter; 10. a driving plate; 11. a first heat dissipation member; 12. a first heat sink member protective cover; 13. a second heat sink member holder; 14. a second heat dissipation member; 15. a second heat sink member protective cover; 31. a light blocking sheet; 41. a lateral substrate; 42. a vertical base plate; 91. an inclined mounting part; 92. a transfer mounting part; 100. an auxiliary high beam module; 101. an auxiliary high beam module housing; 102. an auxiliary LED module driving board; 103. an auxiliary LED chip; 104. spherical reflecting cup; 105. a laser; 106. a collimating lens; 107. a collimating lens sleeve; 108. a diffusion sheet; 109. a focusing lens; 110. a focusing lens sleeve; 111. a wavelength converter; 112. a light receiving lens; 113. a light receiving lens sleeve; 114. an independent heat dissipation component of the auxiliary high beam module; 115. an independent heat dissipation part protection cover of the auxiliary high beam module; 411. an upper table top; 412. a lower table top; A. a first lens section; B. a second lens section; b1, a first fly-eye lens; b2, a second fly-eye lens.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the utility model. For better illustration of the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1 to 3, a multi-light source automotive headlamp includes: a heat radiation substrate 4, a low beam light source module for emitting a low beam, a high beam light source module for emitting a high beam, and an auxiliary high beam module 100 for emitting an auxiliary high beam, which are mounted on the heat radiation substrate 4, a cut light structure 3 disposed on light emitting paths of the low beam and the high beam, and a lamp lens 1 simultaneously disposed on the light emitting paths of the low beam, the high beam, and the auxiliary high beam; a first heat-dissipating member 11 is provided at the bottom of the heat-dissipating substrate 4, and a second heat-dissipating member 14 is provided at the end of the heat-dissipating substrate 4 remote from the lamp lens 1.

In fig. 1, the light-emitting direction of the headlight is defined as the whole length direction of the headlight, the end of the headlight lens 1 is defined as the head of the headlight, and the tail of the headlight is opposite to the head of the headlight along the whole length direction of the headlight; defining the connection line between the top and bottom directions of the head lamp to form the height direction of the whole lamp; the head and tail positions of either component are defined with reference to the head and tail of the headlamp; the end of the heat dissipation substrate 4, which is far away from the lamp lens 1, is provided with a second heat dissipation component 14, that is, the tail of the heat dissipation substrate 4 is provided with the second heat dissipation component 14.

Further, the multi-light source automotive headlamp further comprises a driving plate 10 arranged at the bottom of the heat dissipation substrate 4. The driving board 10 can supply power to electrical components of the automotive headlamp, such as a low beam light source module, a high beam light source module and the like.

For the whole headlight of the automobile, high-brightness illumination can be realized by adding an auxiliary high beam module 100 for emitting auxiliary high beam; through set up first radiating part 11 in radiating base plate 4 bottom and set up second radiating part 14 in the afterbody, both dispel the heat to whole lamp simultaneously, can not increase whole lamp length when improving radiating efficiency, realize illumination and the efficient heat dissipation of hi-lite simultaneously, let the LED car light can operate lasting smoothly.

Further, the auxiliary high beam module 100 includes an auxiliary high beam module housing 101, an auxiliary LED module and an auxiliary laser module mounted on the auxiliary high beam module housing 101, and the auxiliary high beam module 100 further includes an auxiliary high beam module independent heat dissipation part 114 for dissipating heat of the auxiliary high beam module 100 and an auxiliary high beam module driving board 102 for supplying power to the auxiliary high beam module 100. The arrangement of the auxiliary high beam module 100 has the advantages of larger LED light type and long laser irradiation distance, and can improve the illumination effect. The auxiliary high beam module independent heat dissipation component 114 can independently dissipate heat of the auxiliary high beam module 100, and can further improve the heat dissipation effect of the whole lamp; in addition, the auxiliary high beam module driving board 102 can independently supply power to the auxiliary high beam module 100, so that on one hand, the size of the whole lamp driving board can be reduced, the length of the lamp can be reduced, on the other hand, the heat of the whole lamp can be relatively dispersed, and the heat dissipation effect of the whole lamp can be further improved. Of course, in other embodiments, the auxiliary high beam module independent heat dissipation component 114 and the auxiliary high beam module driving board 102 may be alternatively arranged, and the effect of improving the heat dissipation effect of the whole lamp may be achieved, which is not better than the effect of simultaneously arranging the two components.

Further, the auxiliary high beam module independent heat dissipation component 114 in this embodiment is disposed at the top of the auxiliary high beam module housing 101, and may be disposed at the bottom in other embodiments. The auxiliary high beam module independent heat dissipation part 114 can reduce the temperature of the auxiliary high beam module housing 101, further quicken the heat circulation inside the whole lamp, and further improve the heat dissipation effect. The top of supplementary far-reaching headlamp module independent heat dissipation part 114 is equipped with the independent heat dissipation part safety cover 115 of supplementary far-reaching headlamp module that is used for protecting it, sets up like this and can prolong the life of supplementary far-reaching headlamp module independent heat dissipation part 114, reduces the dust and gets into, and makes the car light whole more pleasing to the eye. The auxiliary high beam module independent heat dissipation member protection cover 115 is fixed to the top of the auxiliary high beam module independent heat dissipation member 114 by screws.

The auxiliary high beam module independent heat dissipation part 114 is a fan; the fan has lower cost, and can play a role in rapidly radiating the auxiliary high beam module 100 by actively blowing external cold air to the auxiliary high beam module housing 101. The top of the auxiliary high beam module housing 101 is provided with an open cavity to accommodate the auxiliary high beam module independent heat dissipation part 114; the length of the auxiliary high beam module 100 in the length direction of the car lamp is not increased, and the auxiliary high beam module independent heat dissipation component 114 is convenient to install and detach, and convenient to maintain and replace in the use process.

Further, in this embodiment, the auxiliary high beam module driving plate 102 is disposed on the side of the auxiliary high beam module housing 101 facing away from the lamp lens 1. The auxiliary high beam module driving board 102 is independently integrated on the auxiliary high beam module 100, so that the integration level of the auxiliary high beam module 100 can be improved.

Further, the auxiliary LED module includes an auxiliary LED chip 103 and an auxiliary LED light receiving structure for receiving light emitted by the auxiliary LED chip, in this embodiment, the LED light receiving cup structure is a spherical reflective cup 104, and in other embodiments, the LED light receiving structure may also be a light receiving lens; the auxiliary laser module comprises a laser 105 and a wavelength converter 111, wherein the laser 105 and the wavelength converter 111 are sequentially arranged along the light emitting direction of the headlamp and are used for converting the wavelength of laser light emitted by the laser 105. This arrangement ensures the light-emitting effect of the auxiliary high beam module 100. The auxiliary high beam module driving board 102 is used for independently supplying power to the auxiliary high beam module 100, so that the size and heat load of the driving board 10 can be reduced, and the structural compactness of the auxiliary high beam module 100 can be improved.

In this embodiment, as shown in fig. 3, in this embodiment, one auxiliary laser module is disposed on the auxiliary high beam module housing 101, two auxiliary LED modules are disposed on the side of the auxiliary high beam module housing 101 near the vehicle lamp lens 1, and two auxiliary LED modules are disposed on two sides of the auxiliary laser module respectively. This arrangement ensures the illumination effect.

Further, the auxiliary laser module further comprises a collimating lens 106, a light-homogenizing diffusion sheet 108 and a focusing lens 109, wherein the collimating lens 106, the light-homogenizing diffusion sheet 108 and the focusing lens 109 are arranged between the laser 105 and the wavelength converter 111 and are sequentially arranged along the light-emitting direction of the head lamp, the collimating lens 106 is used for collimating laser rays emitted by the laser 105, the light-homogenizing diffusion sheet 108 is used for homogenizing the laser rays emitted by the collimating lens 106, and the focusing lens 109 is used for focusing the laser rays homogenized by the diffusion sheet 108 onto the wavelength converter; the auxiliary laser module further includes a light receiving lens 112 for receiving the laser beam emitted from the wavelength converter 111 along the light emitting direction of the headlight. The arrangement ensures the illumination effect of the auxiliary high beam finally emitted from the lamp lens 1 by the auxiliary laser module. The auxiliary laser module further comprises a collimator lens sleeve 107 for mounting the collimator lens 106, a focusing lens sleeve 110 for mounting the focusing lens 109, and a collecting lens sleeve 113 for mounting the collecting lens 112, which is arranged to facilitate mounting and dismounting of the corresponding lens.

As shown in fig. 4, in the present embodiment, the lamp lens 1 includes a first lens portion a that collects the light beams of the low beam light source module and the high beam light source module and emits the low beam light or the low beam light and the high beam light, and a second lens portion B that collects the light beams of the auxiliary high beam light and emits the auxiliary high beam light, and includes a first fly-eye lens B1 that collects and emits the light beams of the auxiliary LED module and a second fly-eye lens B2 that collects and emits the light beams of the auxiliary laser module, and the second lens portion B is located in the upper half area of the lamp lens 1. The arrangement ensures that a plurality of light sources reasonably use one car lamp lens 1, thereby ensuring the light emitting effect.

Further, the outside of the auxiliary high beam module housing 101 is provided with heat radiating fins. This arrangement can further improve the heat radiation effect of the auxiliary high beam module case 101.

Further, the first heat dissipation part 11 is a fan and its air outlet direction is opposite to the bottom of the heat dissipation substrate 4, and/or the second heat dissipation part 14 is a fan and its air outlet direction is opposite to the end of the heat dissipation substrate 4 away from the lamp lens 1. In this embodiment, the first heat dissipation member 11 and the second heat dissipation member 14 are both fans. Along the light emitting direction of the headlight, the tail of the heat dissipating substrate 4 is one end of the heat dissipating substrate 4 away from the headlight lens 1, and the head of the heat dissipating substrate 4 is one end of the heat dissipating substrate 4 close to the headlight lens 1, so that it is known that the second heat dissipating component 14 is disposed at the tail of the heat dissipating substrate 4. Through setting up two fans, can initiatively dispel the heat to radiating substrate belly cold wind, promote the radiating effect, and the fan is cheaper relatively, can reduce whole lamp manufacturing cost.

In this embodiment, the heat dissipation substrate 4 includes a lateral substrate 41 and a vertical substrate 42 perpendicular to the lateral substrate 41; the lateral base plate 41 is generally step-shaped, and includes an upper step surface 411 for mounting a low beam light source module and a lower step surface 412 for mounting a high beam light source module, wherein the lower step surface 412 is disposed near the side where the lamp lens is located, and the auxiliary high beam light source module 100 is mounted on the vertical base plate 42. The arrangement is convenient for each part of the head lamp to be installed by taking the heat dissipation substrate 4 as a support, and the structural compactness of the whole lamp can be ensured.

Further, a first heat sink member protecting cover 12 for protecting the first heat sink member 11 and/or a second heat sink member protecting cover 15 for protecting the second heat sink member 14 are also included. In the present embodiment, there are both the first heat sink member protecting cover 12 and the second heat sink member protecting cover 15. The use of safety cover can reduce the dust and get into inside the car light, prolongs the life of radiator unit, and the car light is more pleasing to the eye.

Further, the top opening of the first heat dissipation part protecting cover 12 forms an open cavity, the first heat dissipation part protecting cover 12 and the bottom of the heat dissipation substrate 4 enclose a hollow cavity to accommodate the first heat dissipation part 11, and the first heat dissipation part protecting cover 12 is further provided with an air outlet; and/or the second heat radiation member protection cover 15 has a plate-like structure provided with air outlet holes. Because the whole length of the lamp is not too long when the automobile headlamp is installed, the second heat radiation part protection cover 15 is positioned in the whole length direction of the lamp, and the second heat radiation part protection cover 15 with the platy structure occupies less length space, so that the whole length of the lamp is shortened. The first radiating component protection cover 12 is positioned at the bottom of the whole lamp, the driving plate 10 is positioned at the bottom of the radiating substrate 4 and positioned in the hollow cavity, and thus the arrangement of the driving plate is beneficial to shortening the height of the whole lamp and reducing the installation occupation space of the driving plate while protecting the first radiating component 11 in all directions. The second heat sink member protector 15 is fixed to the tail of the second heat sink member 14 by screws.

Further, the first heat dissipation member 11 has a cylindrical structure as a whole, and the second heat dissipation member 14 has a rectangular structure as a whole. The installation space at two ends of the height direction of the whole lamp is gradually reduced, and the tail part of the length direction of the whole lamp is provided with relatively more space on the surface perpendicular to the light-emitting surface for utilization, so that the arrangement can ensure that the heat dissipation area is increased as much as possible while the occupation of the installation space of the whole lamp is ensured.

Further, the heat dissipation area of the first heat dissipation member 11 is smaller than that of the second heat dissipation member 14. In consideration of installation space in the height direction and the length direction of the whole lamp, the installation space and the heat dissipation effect can be balanced, and efficient heat dissipation is realized in a limited installation space.

Further, the heat dissipation device further comprises a second heat dissipation part fixing piece 13 arranged between the heat dissipation substrate 4 and the second heat dissipation part 14 and used for installing the second heat dissipation part 14, the second heat dissipation part fixing piece 13 is provided with a containing cavity used for containing the second heat dissipation part 14, and the second heat dissipation part fixing piece 13 is provided with hollowed holes or hollowed grids.

Further, the low beam light source module comprises a low beam light source board 5, a low beam LED chip arranged on the low beam light source board 5 and a low beam reflecting cup 6 matched with the low beam LED chip; the high beam light source module comprises a high beam light source plate 7, a high beam LED chip arranged on the high beam light source plate 7 and a high beam reflecting cup 8 matched with the high beam LED chip. The light cutting structure 3 comprises a light blocking piece 31 and a driving structure for driving the light blocking piece 31 to move, and the light blocking piece 31 is positioned on the focal plane of the car light lens 1.

The light cutting structure 3 is an electromagnetic valve light cutting structure, and the light blocking sheet 31 is an arc light blocking sheet. The far-reaching light reflecting cup 8 is used for reflecting the emitted light of the far-reaching light LED chip to the other focal point of the far-reaching light reflecting cup 8, and under normal conditions, the light blocking sheet 31 is positioned on the light path of the far-reaching light, so that the far-reaching light can be blocked, and when the far-reaching light is needed, the driving structure is controlled to drive the light blocking sheet 31 to move away, and then the parallel light can be emitted from the car lamp lens 1, so that the far-reaching light illumination is realized. More specifically, the light-cutting structure 3 is electrically connected to the driving board 10 in the present embodiment. In other embodiments, the light-cutting structure 3 may also be electrically connected to an external switch.

Further, the front light source module further comprises a front light adapter 9, and the front light adapter is used for inclining the front light emitted by the front light source module towards the direction between the tail part and the top part of the front light and then emitting the front light along the light emitting direction of the front light. The high beam adapter 9 includes an adapter mounting portion 92, and an inclined mounting portion 91 provided at the bottom of the adapter mounting portion 92 and inclined in a direction between the head and the top of the headlamp, and a high beam source plate 7 and a high beam reflecting cup 8 are provided in this order on the inclined mounting portion 91 in a direction from the bottom to the top of the headlamp. The arrangement of the high beam adapter 9 facilitates the installation of the high beam light source module and can simplify the high beam light path structure.

A lens bracket 2 for installing the car lamp lens 1 is arranged along the light emitting direction of the head lamp, and the lens bracket 2 is arranged close to the head of the heat dissipation substrate 4.

If the need for extreme heat dissipation is sought, heat pipes may be added to dissipate heat in this embodiment, but at a higher cost.

In the multi-light source automobile headlamp, high-brightness illumination can be realized by adding the auxiliary high beam module 100 for emitting auxiliary high beam; through set up first radiating part 11 in radiating base plate 4 bottom and set up second radiating part 14 at the afterbody, both dispel the heat to whole lamp simultaneously, accelerate whole lamp inside heat circulation and give off, can not increase whole lamp length when improving radiating efficiency, realize the illumination of hi-lite simultaneously and realize efficient heat dissipation, let the LED car light can operate constantly smoothly.

Example 2

Example 2 differs from example 1 only in that: the specific arrangement of the auxiliary high beam module 100 varies. As shown in fig. 5, in this embodiment, two auxiliary laser modules are arranged on the auxiliary high beam module housing 101 in a penetrating manner, and the auxiliary LED modules are arranged on the side surface of the auxiliary high beam module housing, which is close to one side of the lamp lens, and are located in the middle of the two auxiliary laser modules. In practical application, the practical application advantage of embodiment 1 is higher than that of embodiment 2 because the cost of the laser module is higher.

It should be understood that the foregoing examples of the present utility model are merely illustrative of the present utility model and are not intended to limit the present utility model to the specific embodiments thereof. Any modification, equivalent replacement, improvement, etc. that comes within the spirit and principle of the claims of the present utility model should be included in the protection scope of the claims of the present utility model.

Claims (9)

1. A multi-light source automotive headlamp comprising: a heat-dissipating substrate; the automobile lamp comprises a low beam light source module, a high beam light source module, an auxiliary high beam module, a light cutting structure and an automobile lamp lens, wherein the low beam light source module is arranged on a radiating substrate and used for emitting low beam, the high beam light source module is used for emitting high beam, the auxiliary high beam module is used for emitting auxiliary high beam, the light cutting structure is arranged on the light emitting paths of the low beam and the high beam, and the automobile lamp lens is simultaneously arranged on the light emitting paths of the low beam, the high beam and the auxiliary high beam; a first heat dissipation part is arranged at the bottom of the heat dissipation substrate, and a second heat dissipation part is arranged at one end of the heat dissipation substrate far away from the car lamp lens;

the auxiliary high beam module comprises an auxiliary high beam module shell, an auxiliary LED module and an auxiliary laser module, wherein the auxiliary LED module and the auxiliary laser module are arranged on the auxiliary high beam module shell, and the auxiliary high beam module further comprises an auxiliary high beam module independent heat dissipation component for dissipating heat of the auxiliary high beam module and/or an auxiliary high beam module driving plate for supplying power to the auxiliary high beam module.

2. The multi-light source automotive headlamp of claim 1 wherein the auxiliary LED module comprises an auxiliary LED chip and an auxiliary LED light receiving structure for receiving light therefrom.

3. The multi-light source automotive headlamp according to claim 1, wherein the auxiliary laser module comprises lasers and a wavelength converter, wherein the lasers are sequentially arranged along the light emitting direction of the headlamp, and the wavelength converter is used for converting the wavelength of laser emitted by the lasers.

4. The multi-light source automotive headlamp of claim 3, wherein the auxiliary laser module further comprises a collimating lens, a light-homogenizing diffusion sheet and a focusing lens which are arranged between the laser and the wavelength converter and are sequentially arranged along the light-emitting direction of the headlamp, and the auxiliary laser module further comprises a light-receiving lens for receiving the laser light emitted by the wavelength converter along the light-emitting direction of the headlamp.

5. The multi-light source automobile headlamp according to claim 1, wherein the auxiliary laser modules are one and pass through the auxiliary high beam module shell, the number of the auxiliary LED modules is two and are arranged on the side surface of the auxiliary high beam module shell, which is close to one side of the automobile lamp lens, and the two auxiliary LED modules are respectively arranged on two sides of the auxiliary laser module; or the auxiliary laser modules are two and pass through the auxiliary high beam module shell, and the auxiliary LED module is arranged on the side surface of the auxiliary high beam module shell, which is close to one side of the car lamp lens, and is positioned between the two auxiliary laser modules.

6. The multi-light source automotive headlamp according to claim 5, wherein the automotive lamp lens comprises a first lens portion that collects the light beams of the low beam light source module and the high beam light source module and emits the low beam light or the low beam light and the high beam light, and a second lens portion that collects the light beams of the auxiliary high beam light and emits the auxiliary high beam light, and the second lens portion comprises a first fly-eye lens that collects and emits the light beams of the auxiliary LED module and a second fly-eye lens that collects and emits the light beams of the auxiliary laser module, and the second lens portion is located in an upper half area of the automotive lamp lens.

7. The multi-light source automotive headlamp of claim 1 wherein the exterior side of the auxiliary high beam module housing is provided with heat dissipating fins.

8. A multi-light source automotive headlamp according to claim 1, wherein the first heat dissipating member is a fan and has an air-out direction facing the bottom of the heat dissipating substrate, and/or the second heat dissipating member is a fan and has an air-out direction facing the end of the heat dissipating substrate remote from the lens of the automotive lamp.

9. The multi-light source automotive headlamp according to any one of claims 1 to 7, wherein the heat dissipation substrate comprises a lateral substrate and a vertical substrate perpendicular to the lateral substrate; the transverse substrate is generally in a step shape and comprises an upper step surface for installing a low beam light source module and a lower step surface for installing a high beam light source module, the lower step surface is close to the side where the lamp lens is located, and the auxiliary high beam light source module is installed on the vertical substrate.