Far and near integrated automobile LED headlamp

Abstract

The utility model relates to the field of automobile lamps, in particular to a far and near integrated automobile light-emitting diode (LED) headlamp, which is characterized by comprising a lamp shell, a light-emitting component capable of generating far and near light, a fin radiator and a radiating fan, a light-transmitting cavity with the front end and the rear end communicated with the outside is arranged on the lamp shell, and the light-emitting component and the fin radiator are arranged at the front end of the light-transmitting cavity. The light-emitting assembly is attached to the fin radiator, the cooling fan is arranged at the rear end of the light-transmitting cavity, and wind energy generated by the cooling fan acts on the light-emitting assembly and the fin radiator at the same time. According to the utility model, heat dissipation can be realized quickly and effectively, so that the ambient temperature of the light-emitting component can be prevented from being too high, the use performance of the light-emitting component can be improved, the aging speed of the light-emitting component can be reduced, and the light-emitting component, the fin radiator and the heat dissipation fan can be protected very well, so that the service life of the light-emitting component is prolonged. And the service life can be prolonged.

Description

Technical Field

[0001] The utility model relates to the field of automobile lamps, in particular to a high and low integrated automobile LED headlight. Background Art

[0002] The patent document with Chinese patent authorization announcement number CN217031064U and name "A high and low beam integrated LED car lamp" discloses the following technical solution, which includes the following technical features: including a lamp body, a radiator connected to the lamp body, a special-shaped lens, a light baffle, an LED light source and a reflector, the lamp body includes a mounting plate, a connecting column arranged at the rear end of the mounting plate and a mounting ring arranged at the front end of the mounting plate; the radiator is connected to the connecting column; the LED light source includes a first LED lamp board arranged on the top surface of the mounting plate, a second LED lamp board arranged in the mounting ring and a third LED light board arranged at the bottom of the mounting plate.

[0003] After the high and low beam integrated LED headlight is assembled, the LED light source and the radiator are respectively located at the front and rear ends of the high and low beam integrated LED headlight. When the LED light source is working, the heat generated by the LED light source needs to be transferred to the radiator through the mounting plate and the connecting column, and then the heat can be dissipated through the radiator. This is prone to untimely heat dissipation, and thus the temperature around the LED light source is prone to be too high, which not only easily affects the performance of the LED light source, but also easily accelerates the aging speed of the LED light source, and thus easily affects the service life of the high and low beam integrated LED headlight.

[0004] Therefore, it is very necessary to design a kind of integrated long and short distance automobile LED headlight to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned problems and shortcomings and to provide an integrated long and short distance automobile LED headlight, which can help to quickly and effectively achieve heat dissipation, thereby avoiding excessive temperature around the light-emitting component, which can not only improve the performance of the light-emitting component, but also reduce the aging speed of the light-emitting component, and it can also help to play a very good protective role for the light-emitting component, the fin heat sink and the cooling fan, thereby helping to extend the service life.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A high and low beam integrated automobile LED headlight, characterized in that it comprises a lamp housing, a light-emitting component capable of generating high and low beams, a fin heat sink, and a heat dissipation fan, wherein a light-transmitting cavity whose front and rear ends are both connected to the outside world is opened on the lamp housing, the light-emitting component and the fin heat sink are arranged at the front end of the light-transmitting cavity, and the light-emitting component is abutted against the fin heat sink, and the heat dissipation fan is arranged at the rear end of the light-transmitting cavity, and the wind energy generated by the heat dissipation fan acts on the light-emitting component and the fin heat sink at the same time.

[0008] Preferably, the lamp housing comprises an upper shell, a lower shell, and a high and low beam lens body, the upper shell and the lower shell are buckled together, the high and low beam lens body is arranged on the front end of the upper shell or on the front end of the lower shell or between the front end of the upper shell and the front end of the lower shell, the upper shell, the lower shell, and the high and low beam lens body together enclose a light-transmitting cavity, the heat dissipation fan and the light-emitting component are clamped between the upper shell and the lower shell, and the fin heat sink is fixed on the light-emitting component.

[0009] Preferably, a positioning ring connected to and communicated with the light-transmitting cavity is provided on the front end of the upper shell or the lower shell, and the high and low beam lens bodies are embedded in the positioning ring.

[0010] Preferably, at least one first heat dissipation hole facing the fin heat sink is formed on the lower shell or the upper shell.

[0011] Preferably, the high-beam and low-beam lens body comprises an integrated high-beam lens portion and a low-beam lens portion.

[0012] Preferably, the light-emitting assembly includes a first heat-conducting plate, a heat-conducting frame, a low-beam lamp body, a high-beam lamp body, and a reflective cup. The low-beam lamp body and the fin heat sink are respectively arranged on two surfaces of the first heat-conducting plate, the heat-conducting frame is connected to the fin heat sink, the high-beam lamp body is arranged on the heat-conducting frame, and the reflective cup cover is placed on the low-beam lamp body.

[0013] Preferably, the heat conducting frame comprises a second heat conducting plate and two heat conducting strips, one end of the two heat conducting strips is connected to the fin heat sink, the second heat conducting plate is connected to the other end of the two heat conducting strips, and the high beam lamp body is arranged on the second heat conducting plate.

[0014] Preferably, the thermally conductive strip is a superconducting copper tube.

[0015] Preferably, the first heat conducting plate is a copper substrate, and the second heat conducting plate is a copper substrate.

[0016] Preferably, the fin heat sink comprises at least one heat dissipation sheet, and the heat dissipation sheet is bent back and forth in an arc shape to form a plurality of heat dissipation fins parallel to each other.

[0017] The beneficial effects of the utility model are as follows: on the integrated automotive LED headlight, a light-transmitting cavity is provided on the lamp housing, which is connected to the outside world at both the front and rear ends. This can not only provide installation and protection space for the light-emitting component, the fin heat sink and the heat dissipation fan, but also meet the light transmission requirements, and can achieve air exchange with the outside world at the front and rear ends of the light-transmitting cavity, which can be conducive to full and effective heat dissipation. Such a structure can be conducive to improving heat dissipation performance. By arranging the light-emitting component and the fin heat sink at the front end of the light-transmitting cavity, and making the light-emitting component close to the fin heat sink, the fin heat sink can be conducive to very quickly absorbing the heat generated by the light-emitting component; in addition, the wind energy generated by the heat dissipation fan acts on the light-emitting component and the fin heat sink at the same time; this can be conducive to rapid and effective heat dissipation, thereby avoiding excessively high temperatures around the light-emitting component, which can not only improve the performance of the light-emitting component, but also reduce the aging speed of the light-emitting component, thereby helping to extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the three-dimensional structural schematic diagrams of the long- and short-range integrated automobile LED headlight in the utility model.

[0019] Figure 2 This is the second three-dimensional structural schematic diagram of the long- and short-range integrated automobile LED headlight in the utility model.

[0020] Figure 3 This is one of the schematic diagrams of the split structure of the long-distance and short-distance integrated automobile LED headlight in the utility model.

[0021] Figure 4 This is the second schematic diagram of the split structure of the long-distance and short-distance integrated automobile LED headlight in the utility model.

[0022] Figure 5 It is a schematic cross-sectional view of the structure of the integrated long and short range LED headlight for automobiles in the utility model.

[0023] Figure 6 It is a schematic cross-sectional structural diagram of the lamp housing in the utility model.

[0024] Figure 7 This is one of the three-dimensional structural schematic diagrams of the light-emitting component and the lower shell in the utility model in the assembled state.

[0025] Figure 8 This is the second three-dimensional structural schematic diagram of the light-emitting component and the lower shell in the utility model in the assembled state.

[0026] Fig. 9 It is a three-dimensional structural schematic diagram of the light-emitting component and the fin heat sink in the utility model in the assembled state.

[0027] Fig.10 This is one of the structural schematic diagrams of the heat dissipation fan in the utility model being detached from the light-emitting component.

[0028] Fig.11 This is the second structural schematic diagram of the heat dissipation fan in the utility model separated from the light-emitting component.

[0029] Fig.12 It is a schematic diagram of the three-dimensional structure of the heat dissipation sheet in the utility model. DETAILED DESCRIPTION

[0030] like Figures 1 to 6 As shown, the utility model describes an integrated high and low beam automotive LED headlight, comprising a lamp housing 1, a light emitting component 2 capable of generating high and low beams, a fin heat sink 3, and a heat dissipation fan 4, wherein the lamp housing 1 is provided with a light-transmitting cavity 10 whose front and rear ends are both connected to the outside world (the outside world here refers to the space outside the lamp housing 1), the light emitting component 2 and the fin heat sink 3 are arranged at the front end of the light-transmitting cavity 10, and the light emitting component 2 is abutted against the fin heat sink 3, the heat dissipation fan 4 is arranged at the rear end of the light-transmitting cavity 10, and the wind energy generated by the heat dissipation fan 4 acts on the light emitting component 2 and the fin heat sink 3 at the same time.

[0031] In the integrated automotive LED headlight, a light-transmitting cavity 10 is provided on the lamp housing 1, the front and rear ends of which are connected to the outside world. This not only provides installation and protection space for the light-emitting component 2, the fin heat sink 3 and the cooling fan 4, but also meets the light transmission requirements, and can realize air exchange with the outside world at the front and rear ends of the light-transmitting cavity 10, which is conducive to sufficient and effective heat dissipation. Such a structure can help improve the heat dissipation performance.

[0032] By arranging the light-emitting component 2 and the fin heat sink 3 at the front end of the light-transmitting cavity 10, and making the light-emitting component 2 close to the fin heat sink 3, the fin heat sink 3 can quickly absorb the heat generated by the light-emitting component 2; in addition, the wind energy generated by the heat dissipation fan 4 acts on the light-emitting component 2 and the fin heat sink 3 at the same time; this can help to quickly and effectively achieve heat dissipation, thereby avoiding excessive temperature around the light-emitting component 2, which can not only improve the performance of the light-emitting component 2, but also reduce the aging speed of the light-emitting component 2, thereby helping to extend the service life.

[0033] By arranging the heat dissipation fan 4 at the rear end of the light-transmitting cavity 10, it is not only convenient for the wind generated by the heat dissipation fan 4 to act on the light-emitting component 2 and the fin heat sink 3 at the same time, but also helps to make the integrated long and short distance automobile LED headlight have a more compact structure, thereby helping to improve the applicability of the integrated long and short distance automobile LED headlight.

[0034] like Figures 1 to 5As shown, the lamp housing 1 includes an upper housing 11, a lower housing 12, and a high and low beam lens body 13. The upper housing 11 and the lower housing 12 are buckled together. The high and low beam lens body 13 is arranged on the front end of the upper housing 11 or the front end of the lower housing 12 or between the front end of the upper housing 11 and the front end of the lower housing 12. The upper housing 11, the lower housing 12, and the high and low beam lens body 13 together enclose a light-transmitting cavity 10. The heat dissipation fan 4 and the light-emitting component 2 are both clamped between the upper housing 11 and the lower housing 12, and the fin heat sink 3 is fixed on the light-emitting component 2. This not only enables the lamp housing 1 to have a simple structure, but also facilitates the rapid, accurate and stable positioning of the heat dissipation fan 4, the light-emitting component 2 and the fin heat sink 3, thereby helping to improve the convenience and reliability of manufacturing.

[0035] like Figures 3 to 8 As shown, at least one front vent hole 20 is provided at the front end of the upper shell 11 and / or the front end of the lower shell 12, and the front vent hole 20 is connected to the light-transmitting cavity 10, and at least one rear vent hole 30 is provided at the rear end of the upper shell 11 and / or the rear end of the lower shell 12, and the rear vent hole 30 is connected to the light-transmitting cavity 10. In this way, the front and rear ends of the light-transmitting cavity 10 can be connected to the outside world, so that air exchange can be achieved quickly and effectively, and thus the heat dissipation performance can be ensured to be very good.

[0036] like Figures 5 to 8 As shown, a positioning ring 14 is provided on the front end of the upper shell 11 or the lower shell 12, which is connected to the light-transmitting cavity 10, and the high and low beam lens body 13 is embedded in the positioning ring 14. In this way, it is convenient to install and position the high and low beam lens body 13 separately, and it is not necessary to install and position the high and low beam lens body 13 at the same time when the upper shell 11 and the lower shell 12 are buckled together, which can help improve the convenience of buckling the upper shell 11 and the lower shell 12. The use of the positioning ring 14 can help accurately and stably position the high and low beam lens body 13, thereby helping to improve the accuracy and stability of the installation and positioning of the high and low beam lens body 13, and further help to further improve the reliability of the high and low beam integrated automotive LED headlight.

[0037] like Figures 5 to 8 As shown, the positioning ring 14 and the upper shell 11 or the lower shell 12 are integrally formed, so that the positioning ring 14 can play a more stable and reliable positioning role, thereby helping to further improve the stability and reliability of the installation and positioning of the high and low beam lens body 13.

[0038] like Figures 4 to 6 , Figure 8 As shown, at least one first heat dissipation hole 121 facing the fin heat sink 3 is provided on the lower shell 12 or the upper shell 11. The first heat dissipation hole 121 facing the fin heat sink 3 can increase the heat exchange between the fin heat sink 3 and the outside, thereby further improving the heat dissipation performance of the integrated automotive LED headlight.

[0039] like Figure 4 As shown, the high and low beam lens body 13 includes an integrated high beam lens portion 131 and a low beam lens portion 132. This can not only meet the transmission requirements of high beam and low beam, but also conveniently and accurately realize the installation of the high and low beam lens body 13, thereby further improving the convenience and reliability of manufacturing.

[0040] like Figures 9 to 11 As shown, the light emitting assembly 2 includes a first heat conducting plate 21, a heat conducting frame 22, a low beam lamp body 23, a high beam lamp body 24, and a reflective cup 25. The low beam lamp body 23 and the fin heat sink 3 are respectively arranged on two surfaces of the first heat conducting plate 21, the heat conducting frame 22 is connected to the fin heat sink 3, the high beam lamp body 24 is arranged on the heat conducting frame 22, and the reflective cup 25 is placed on the low beam lamp body 23. Such a structure can not only facilitate the realization of stable and reliable high and low beam effects, but also facilitate the rapid transfer of heat generated on the low beam lamp body 23 and the high beam lamp body 24 to the fin heat sink 3, thereby ensuring that the high and low beam integrated automotive LED headlight has very good heat dissipation performance and improves the light effect.

[0041] The low beam lamp body 23 is composed of at least one 7035 LED lamp bead, and the high beam lamp body 24 is composed of at least one 5050 LED lamp bead, so that a very stable and reliable low and high beam integrated automobile LED headlight can be formed.

[0042] like Figures 3 to 6 , Figures 8 to 11 As shown, the first heat conducting plate 21 is arranged horizontally, the low beam lamp body 23 and the fin heat sink 3 are respectively arranged on the upper and lower surfaces of the first heat conducting plate 21, the reflective cup 25 is arranged on the top surface of the first heat conducting plate 21, the first heat dissipation hole 121 is vertically opened through the lower shell 12, and the upper shell 11 is provided with at least one second heat dissipation hole 111 facing the reflective cup 25. This can achieve a better heat exchange effect, thereby further improving the heat dissipation performance.

[0043] like Figures 9 to 11 As shown, the heat conducting frame 22 includes a second heat conducting plate 221 and two heat conducting strips 222. One end of the two heat conducting strips 222 is connected to the fin heat sink 3, the second heat conducting plate 221 is connected to the other end of the two heat conducting strips 222, and the high beam lamp body 24 is arranged on the second heat conducting plate 221. Such a heat conducting frame 22 is very simple and reliable, which is not only convenient for manufacturing, but also has a very good heat conduction effect, thereby ensuring that the high and low beam integrated automotive LED headlight has very good performance.

[0044] like Figure 4 , Figure and Fig.11As shown, the heat conducting strip 222 includes an integrally formed longitudinal strip 2221 and a vertical strip 2222, the lower end of the vertical strip 2222 is connected to the front end of the longitudinal strip 2221, the rear ends of the longitudinal strips 2221 of the two heat conducting strips 222 are respectively connected to the left and right ends of the fin heat sink 3, and the rear ends of the two longitudinal strips 2221 are also connected to the first heat conducting plate 21, the second heat conducting plate 221 is arranged horizontally, and the left and right ends of the second heat conducting plate 221 are respectively connected to the upper ends of the vertical strips 2222 of the two heat conducting strips 222, and the two vertical strips 2222 below the second heat conducting plate 221 are connected to the upper ends of the vertical strips 2222 of the two heat conducting strips 222. A light-through gap 40 is reserved between the strips 2222 for the light reflected by the reflective cup 25 to pass through. The high-beam lens portion 131 and the low-beam lens portion 132 are arranged side by side in an upper and lower manner; the light emitted by the low-beam lamp body 23 can be reflected by the reflective cup 25 and then pass through the light-through gap 40 and the low-beam lens portion 132 in sequence to radiate the low beam outward; the high-beam lamp body 24 is arranged on the front surface of the second heat conducting plate 221, and the high-beam lamp body 24 is located directly behind the high-beam lens portion 131, and the light emitted by the high-beam lamp body 24 can pass through the high-beam lens portion 131 to radiate the high beam outward. This can not only stably achieve the high and low beam effects, but also ensure that its heat dissipation effect is very good. And this can help to protect the fin heat sink 3, so that the high and low beam integrated automotive LED headlight has a very high reliability.

[0045] The longitudinal strips 2221 of the two heat-conducting strips 222 are respectively welded and fixed on the left and right surfaces of the fin heat sink 3, and the longitudinal strips 2221 of the two heat-conducting strips 222 are respectively welded and fixed on the bottom surface of the first heat-conducting plate 21, and the vertical strips 2222 of the two heat-conducting strips 222 are respectively welded and fixed on the left and right ends of the second heat-conducting plate 221. In this way, not only a very stable and reliable heat dissipation frame can be formed, but also a very stable and reliable installation position can be provided for the high beam body 24 and the low beam body 23, and the overall installation can be facilitated, thereby improving the convenience and stability of installation positioning.

[0046] like Figure 5 , Figures 9 to 11 As shown, a clip 211 is provided on the rear end of the first heat conducting plate 21, the heat dissipating fan 4 is arranged longitudinally, and the fixing part of the heat dissipating fan 4 is clipped and positioned on the clip 211, and the clip 211 and the fixing part of the heat dissipating fan 4 are clamped and positioned between the upper shell 11 and the lower shell 12; the front ends of the longitudinal strips 2221 of the two heat conducting strips 222 are embedded on the inner wall of the lower shell 12, and the second heat conducting plate 221 and the two vertical strips 2222 are clamped and positioned between the upper shell 11 and the lower shell 12; the top of the reflective cup 25 is clipped on the inner wall of the upper shell 11. This can help to accurately and stably position the light emitting component 2, the fin heat sink 3, and the heat dissipating fan 4 in the lamp housing 1, thereby helping to further improve the reliability of the integrated automotive LED headlight.

[0047] The heat conducting strip 222 is a superconducting copper tube, which can make the heat conducting strip 222 have better heat conductivity, thereby helping to further improve the heat dissipation performance.

[0048] The first heat conducting plate 21 is a copper substrate, and the second heat conducting plate 221 is a copper substrate. This not only enables the first heat conducting plate 21 and the second heat conducting plate 221 to have reliable structural strength, but also enables them to have very good thermal conductivity, thereby facilitating the stability of the installation and positioning of the high beam lamp body 24 and the low beam lamp body 23, and achieving a better heat dissipation effect.

[0049] like Fig.11 and Fig.12 As shown, the fin heat sink 3 includes at least one heat sink 31, and the heat sink 31 is bent back and forth in an arc shape to form a plurality of mutually parallel heat sink fins 311. This not only facilitates the manufacture of the fin heat sink 3, but also enables the fin heat sink 3 to have a very good heat dissipation effect.

[0050] like Figures 3 to 11 As shown, the surfaces of each heat dissipation fin 311 on the fin heat sink 3 are extended longitudinally; when a plurality of heat dissipation sheets 31 constitute the fin heat sink 3, the heat dissipation sheets 31 are arranged side by side longitudinally; at least one rear ventilation hole 30 is provided on the rear end surfaces of the upper shell 11 and the lower shell 12, at least one front ventilation hole 20 facing the front and downward is provided on the bottom of the front end of the lower shell 12, and at least one front ventilation hole 20 is provided on the top of the front end of the upper shell 11; the rear top surface of the reflective cup 25 is an arc-shaped surface with a high front and a low back; this can help the wind force generated by the heat dissipation fan 4 to bring out the heat very quickly, thereby achieving a very stable and reliable heat dissipation effect.

[0051] The above embodiments are preferred embodiments of the present utility model. All structures similar to the present utility model and equivalent changes made thereto should fall within the protection scope of the present utility model.

Claims

1. A high and low integrated automotive LED headlight, characterized by: The invention comprises a lamp housing (1), a light-emitting component (2) capable of generating high and low beams, a fin heat sink (3), and a heat dissipation fan (4), wherein the lamp housing (1) is provided with a light-transmitting cavity (10) whose front and rear ends are both connected to the outside world, the light-emitting component (2) and the fin heat sink (3) are arranged at the front end of the light-transmitting cavity (10), and the light-emitting component (2) is placed against the fin heat sink (3), and the heat dissipation fan (4) is arranged at the rear end of the light-transmitting cavity (10), and the wind energy generated by the heat dissipation fan (4) acts on the light-emitting component (2) and the fin heat sink (3) at the same time.

2. The integrated high and low beam automotive LED headlight according to claim 1, characterized in that: The lamp housing (1) comprises an upper housing (11), a lower housing (12), and a high and low beam lens body (13); the upper housing (11) and the lower housing (12) are buckled together; the high and low beam lens body (13) is arranged on the front end of the upper housing (11) or on the front end of the lower housing (12) or between the front end of the upper housing (11) and the front end of the lower housing (12); the upper housing (11), the lower housing (12), and the high and low beam lens body (13) together enclose a light-transmitting cavity (10); the heat dissipation fan (4) and the light-emitting component (2) are both clamped between the upper housing (11) and the lower housing (12); and the fin heat sink (3) is fixed on the light-emitting component (2).

3. The integrated high and low beam automotive LED headlight according to claim 2, characterized in that: A positioning ring (14) that is connected to and communicates with the light-transmitting cavity (10) is provided on the front end of the upper shell (11) or the lower shell (12), and the high and low beam lens body (13) is embedded in the positioning ring (14).

4. The integrated high and low beam automotive LED headlight according to claim 2, characterized in that: At least one first heat dissipation hole (121) facing the fin heat sink (3) is provided on the lower shell (12) or the upper shell (11).

5. The integrated high and low beam automotive LED headlight according to claim 2, characterized in that: The high-beam and low-beam lens body (13) comprises an integrated high-beam lens portion (131) and a low-beam lens portion (132).

6. The integrated high and low beam automotive LED headlight according to claim 1, characterized in that: The light-emitting assembly (2) comprises a first heat-conducting plate (21), a heat-conducting frame (22), a low-beam lamp body (23), a high-beam lamp body (24), and a reflective cup (25); the low-beam lamp body (23) and the fin heat sink (3) are respectively arranged on two surfaces of the first heat-conducting plate (21); the heat-conducting frame (22) is connected to the fin heat sink (3); the high-beam lamp body (24) is arranged on the heat-conducting frame (22); and the reflective cup (25) is placed on the low-beam lamp body (23).

7. The integrated high and low beam automotive LED headlight according to claim 6, characterized in that: The heat-conducting frame (22) comprises a second heat-conducting plate (221) and two heat-conducting strips (222), one end of the two heat-conducting strips (222) being connected to the fin heat sink (3), the second heat-conducting plate (221) being connected to the other ends of the two heat-conducting strips (222), and the high-beam lamp body (24) being arranged on the second heat-conducting plate (221).

8. The integrated high and low beam automotive LED headlight according to claim 7, characterized in that: The heat conducting strip (222) is a superconducting copper tube.

9. The integrated high and low beam automotive LED headlight according to claim 7, characterized in that: The first heat conducting plate (21) is a copper substrate, and the second heat conducting plate (221) is a copper substrate.

10. The integrated high and low beam automotive LED headlight according to claim 1, characterized in that: The fin heat sink (3) comprises at least one heat sink sheet (31), and the heat sink sheet (31) is bent back and forth in an arc shape to form a plurality of heat sink fins (311) that are parallel to each other.

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