Car lamp with good heat dissipation performance

Abstract

The utility model discloses a car lamp with good heat dissipation performance, which comprises a first heat dissipation shell and a second heat dissipation shell which are oppositely arranged and used for providing an internal installation space and providing heat dissipation, and the first heat dissipation shell comprises a first lamp pole end and a first heat dissipation end connected with the first lamp pole end; the second heat dissipation shell comprises a second lamp pole end and a second heat dissipation end connected with the second lamp pole end, a copper substrate corresponding to the first lamp pole end is arranged between the first lamp pole end and the second lamp pole end, and lamp beads used for providing illumination are arranged on the two sides of the copper substrate. A heat dissipation device used for dissipating heat of the copper substrate is arranged between the first heat dissipation end and the second heat dissipation end, and the side, away from the copper substrate, of the heat dissipation device is provided with an installation end used for installing a vehicle lamp good in heat dissipation performance. The copper substrate can be in better contact with the first heat dissipation shell and the second heat dissipation shell, so that the copper substrate can better dissipate heat when the heat dissipation device works, the copper substrate is convenient and fast to install, and the complete heat dissipation function and working performance can be guaranteed while the cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting technology, and in particular to a vehicle lighting system with good heat dissipation performance. Background Technology

[0002] In existing automotive lighting heat dissipation technologies, the combination of a copper substrate and a copper heat pipe has become a mature solution. The copper substrate, with its excellent electrical and thermal conductivity, can quickly transfer the heat generated by the headlight to the copper heat pipe, which achieves efficient heat conduction through an internal phase change of its working fluid. This combination effectively avoids light decay and thermal failure issues during long-term operation of automotive lights, significantly improving their reliability and lifespan.

[0003] However, copper heat dissipation pipes are expensive to manufacture and have complex processes. In practical use and installation, a balance must be struck between ease of installation, heat dissipation performance, and cost. Therefore, there is a need for a cost-effective vehicle light that can achieve good heat dissipation without the need for copper heat dissipation pipes. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model proposes a vehicle lamp with good heat dissipation performance.

[0005] This utility model is achieved by the following technical solution:

[0006] A vehicle light with good heat dissipation performance includes a first heat dissipation housing and a second heat dissipation housing disposed opposite to each other to provide internal mounting space and heat dissipation. The first heat dissipation housing includes a first lamp post end and a first heat dissipation end connected to the first lamp post end. The second heat dissipation housing includes a second lamp post end and a second heat dissipation end connected to the second lamp post end. A copper substrate corresponding to the first lamp post end is disposed between the first lamp post end and the second lamp post end. Lamp beads for providing illumination are disposed on both sides of the copper substrate. A heat dissipation device for dissipating heat from the copper substrate is disposed between the first heat dissipation end and the second heat dissipation end. A mounting end for mounting the vehicle light with good heat dissipation performance is disposed on the side of the heat dissipation device away from the copper substrate.

[0007] The copper substrate can make better contact with the first heat sink and the second heat sink, so that it can dissipate heat better under the operation of the heat dissipation device. It is also convenient to install, and can ensure complete heat dissipation function and working performance while saving costs.

[0008] As described above, the vehicle headlight with good heat dissipation performance has multiple first heat sinks arranged in a ring at intervals at the first lamp post end, and multiple first heat dissipation through holes between the first lamp post end and the first heat dissipation end. The second lamp post end has multiple second heat sinks arranged in a ring at intervals, and multiple second heat dissipation through holes between the second lamp post end and the second heat dissipation end. The positions of the first heat dissipation through holes correspond to the intervals between adjacent first heat sinks, and the positions of the second heat dissipation through holes correspond to the intervals between adjacent second heat sinks. This allows heat to be dissipated from the first lamp post end and the copper substrate between the first lamp post end and the second lamp post end through the first and second heat dissipation through holes when the heat dissipation device provides heat dissipation.

[0009] As described above, the vehicle headlight with good heat dissipation performance has a first light-transmitting hole corresponding to the lamp bead on the first lamp post end, and a second light-transmitting hole corresponding to the lamp bead on the second lamp post end.

[0010] As described above, the vehicle headlight with good heat dissipation performance includes a cooling fan and a drive mechanism for driving the cooling fan. A U-shaped mounting member for clamping the copper substrate and limiting the heat dissipation device is provided between the first heat dissipation housing and the second heat dissipation housing. The mounting member has a mounting groove corresponding to the copper substrate on the side near the copper substrate. The two legs of the mounting member away from the copper substrate have limiting protrusions for limiting the heat dissipation device. The drive mechanism has a first alignment groove corresponding to the limiting protrusions on the side near the mounting end.

[0011] As described above, the vehicle headlight with good heat dissipation performance has a first mounting protrusion on the side of the first heat dissipation end near the mounting end for mounting the mounting end, and a second mounting protrusion on the side of the second heat dissipation end near the mounting end for mounting the mounting end. The mounting end has a mounting groove corresponding to the first mounting protrusion and the second mounting protrusion.

[0012] As described above, the vehicle headlight with good heat dissipation performance has a second alignment groove on the side of the drive mechanism near the first alignment groove for alignment with the mounting end, and an alignment protrusion corresponding to the second alignment groove is provided on the side of the mounting end near the heat dissipation device.

[0013] As described above, the vehicle headlight with good heat dissipation performance has a first slot for mounting the first heat dissipation end near the mounting end, and a second slot corresponding to the first slot for mounting the second heat dissipation end near the mounting end. The first slot and the second slot can form a mating through hole when the first heat dissipation housing and the second heat dissipation housing are assembled into one piece. The mounting end has a mating part corresponding to the mating through hole formed by the first slot and the second slot.

[0014] As described above, the vehicle light with good heat dissipation performance has a first mounting hole on the first lamp post end, a first alignment hole corresponding to the first mounting hole on the second lamp post end, a mounting through hole on the copper substrate that aligns with the first mounting hole and the first alignment hole, second mounting holes for fixed installation on both sides of the first heat dissipation end, and a second alignment hole corresponding to the second mounting hole on the second heat dissipation end.

[0015] As described above, the vehicle headlight with good heat dissipation performance is such that the first lamp post end and the second lamp post end, as well as the copper substrate, are fixedly connected by the first mounting hole, the mounting through hole, and the first alignment hole threaded bolt, and the first heat dissipation end and the second heat dissipation end are connected by the second mounting hole and the second alignment hole threaded bolt.

[0016] As described above, the vehicle light with good heat dissipation performance has a protrusion for alignment and installation on the side of the copper substrate near the first heat dissipation housing, and a slot corresponding to the protrusion is provided in the end of the first lamp post.

[0017] Compared with the prior art, the vehicle lamp with good heat dissipation performance proposed in this utility model has the following beneficial effects:

[0018] 1. The copper substrate of this utility model can make better contact with the first heat dissipation shell and the second heat dissipation shell, so that it can dissipate heat better under the operation of the heat dissipation device. It is also convenient to install, and can ensure complete heat dissipation function and working performance while saving costs.

[0019] 2. The first heat sink and the second heat sink can provide a larger heat dissipation area. When the heat dissipation device is working, it can dissipate heat to the first lamp post end, the second lamp post end and the lamp bead through the first heat dissipation through hole and the second heat dissipation through hole, and at the same time dissipate heat to the copper substrate.

[0020] 3. The first mounting protrusion, the second mounting protrusion, and the mounting groove cooperate with each other; the second alignment groove cooperates with the alignment protrusion; and the first and second locking grooves cooperate with the mating parts to completely fix the position of the mounting end. That is, the position of the mounting end is fixed after the first heat dissipation shell and the second heat dissipation shell are installed and fixed by threaded bolts. The installation structure is simple and the assembly effect is good. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the explosive decomposition;

[0024] Figure 3 for Figure 2 A magnified view of region A;

[0025] Figure 4 for Figure 1 Another perspective illustration;

[0026] Figure 5 for Figure 4 A schematic diagram of the explosive decomposition;

[0027] Figure 6 for Figure 5 Enlarged schematic diagram of region B;

[0028] Figure 7 for Figure 5 Another perspective illustration.

[0029] The corresponding reference numerals in the attached figures are as follows:

[0030] 1. First heat dissipation housing; 10. First heat dissipation through hole; 11. First lamp post end; 111. First heat sink; 112. First light-transmitting hole; 113. Slot; 114. First mounting hole; 12. First heat dissipation end; 121. First ventilation hole; 122. First mounting protrusion; 123. First slot; 124. Second mounting hole; 2. Second heat dissipation housing; 20. Second heat dissipation through hole; 21. Second lamp post end; 211. Second heat sink; 212. Second light-transmitting hole; 214. First alignment... 1. Hole; 22. Second heat dissipation end; 221. Second ventilation hole; 222. Second mounting protrusion; 223. Second locking groove; 224. Second alignment hole; 3. Copper substrate; 31. Positioning protrusion; 32. Mounting through hole; 4. LED bead; 5. Heat dissipation device; 51. Cooling fan; 52. Drive mechanism; 521. First alignment groove; 522. Second alignment groove; 6. Mounting end; 61. Mounting groove; 62. Alignment protrusion; 63. Mating part; 7. Mounting part; 71. Mounting groove; 72. Limiting protrusion. Detailed Implementation

[0031] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] Specific embodiments, combined with Figures 1 to 7 As shown, further illustrating the technical solution of this utility model, a vehicle lamp with good heat dissipation performance includes a first heat dissipation housing 1 and a second heat dissipation housing 2, which are arranged opposite each other to provide internal installation space and heat dissipation. The first heat dissipation housing 1 includes a first lamp post end 11 and a first heat dissipation end 12 connected to the first lamp post end 11. The second heat dissipation housing 2 includes a second lamp post end 21 and a second heat dissipation end 22 connected to the second lamp post end 21. A copper substrate 3 corresponding to the first lamp post end 11 is provided between the first lamp post end 11 and the second lamp post end 21. Lamp beads 4 for providing illumination are provided on both sides of the copper substrate 3. A heat dissipation device 5 for dissipating heat from the copper substrate 3 is provided between the first heat dissipation end 12 and the second heat dissipation end 22. A mounting end 6 for mounting the vehicle lamp with good heat dissipation performance is provided on the side of the heat dissipation device 5 away from the copper substrate 3. The copper substrate 3 can make better contact with the first heat dissipation housing 1 and the second heat dissipation housing 2, so that it can be better dissipated under the operation of the heat dissipation device 5. Moreover, it is convenient and easy to install, and can ensure complete heat dissipation function and working performance while saving costs.

[0033] Furthermore, as a preferred embodiment of this solution and not a limitation, the first lamp post end 11 is provided with a plurality of first heat sinks 111 spaced in a ring, and a plurality of first heat dissipation through holes 10 are provided between the first lamp post end 11 and the first heat dissipation end 12. The second lamp post end 21 is provided with a plurality of second heat sinks 211 spaced in a ring, and a plurality of second heat dissipation through holes 20 are provided between the second lamp post end 21 and the second heat dissipation end 22. The position of the first heat dissipation through holes 10 corresponds to the spacing between adjacent first heat sinks 111, and the position of the second heat dissipation through holes 20 corresponds to the spacing between adjacent second heat sinks 211, so as to realize that when the heat dissipation device 5 provides heat dissipation, the first lamp post end 11 and the copper substrate 3 between the first lamp post end 11 and the second lamp post end 21 are dissipated through the first heat dissipation through holes 10 and the second heat dissipation through holes 20. The first heat sink 111 and the second heat sink 211 can provide a larger heat dissipation area. When the heat dissipation device 5 is working, it can dissipate heat to the first lamp post end 11, the second lamp post end 21 and the lamp bead 4 through the first heat dissipation through hole 10 and the second heat dissipation through hole 20, and at the same time dissipate heat to the copper substrate 3.

[0034] Furthermore, as a preferred embodiment of this solution and not a limitation, the first heat dissipation end 12 is provided with a plurality of first ventilation holes 121 near the heat dissipation device 5, and the second heat dissipation end 22 is provided with a plurality of second ventilation holes 221 near the heat dissipation device 5. The first ventilation holes 121 and the second ventilation holes 221 can dissipate heat from the first heat dissipation end 12 and the second heat dissipation end 22 to ensure the normal use of the heat dissipation device 5 and this product.

[0035] Furthermore, as a preferred embodiment of this solution and not a limitation, the first lamp post end 11 is provided with a first light-transmitting hole 112 corresponding to the lamp bead 4, and the second lamp post end 21 is provided with a second light-transmitting hole 212 corresponding to the lamp bead 4. The first light-transmitting hole 112 and the second light-transmitting hole 212 can provide space for the installation of the lamp bead 4, and at the same time, can dissipate heat from the first heat dissipation through hole 10 and the second heat dissipation through hole 20, through the channel between adjacent first heat sinks 111 and the channel between adjacent second heat sinks 211 when the heat dissipation device 5 is working, further ensuring the use of the product.

[0036] Furthermore, as a preferred embodiment of this solution and not a limitation, the copper substrate 3 is provided with a positioning protrusion 31 for alignment and installation on the side near the first heat sink housing 1, and a slot 113 corresponding to the positioning protrusion 31 is provided in the first lamp post end 11. The positioning protrusion 31 can provide a positioning layer for the installation of the copper substrate 3, and at the same time ensure that the copper substrate 3 maintains a fixed position after installation.

[0037] In this embodiment, the heat dissipation device 5 includes a cooling fan 51 and a drive mechanism 52 for driving the cooling fan 51. A U-shaped mounting member 7 for clamping the copper substrate 3 and limiting the heat dissipation device 5 is provided between the first heat dissipation housing 1 and the second heat dissipation housing 2. The mounting member 7 has a mounting groove 71 corresponding to the copper substrate 3 on its side near the copper substrate 3, and limiting protrusions 72 for limiting the heat dissipation device 5 on its two legs on its side away from the copper substrate 3. The drive mechanism 52 has a first alignment groove 521 corresponding to the limiting protrusions 72 on its side near the mounting end 6. One side of the mounting member 7 provides installation and limiting space for the copper substrate 3, further defining the installation position of the copper substrate 3. The other side of the mounting member 7 can limit the heat dissipation device 5 through the cooperation of the limiting protrusions 72 and the first alignment groove 521, ensuring that the heat dissipation device 5 has sufficient heat dissipation space and operates in a safe and reliable position.

[0038] Furthermore, as a preferred embodiment of this solution and not a limitation, the first heat dissipation end 12 has a first mounting protrusion 122 on the side near the mounting end 6 for mounting the mounting end 6, and the second heat dissipation end 22 has a second mounting protrusion 222 on the side near the mounting end 6 for mounting the mounting end 6. The mounting end 6 has a mounting groove 61 corresponding to the first mounting protrusion 122 and the second mounting protrusion 222. Optionally, the first mounting protrusion 122 and the second mounting protrusion 222 can cooperate to form an annular protrusion to facilitate installation in the mounting groove 61. The cooperation of the first mounting protrusion 122, the second mounting protrusion 222, and the mounting groove 61 fixes the position of the mounting end 6 in one direction when the first heat dissipation housing 1 and the second heat dissipation housing 2 are installed.

[0039] Furthermore, as a preferred embodiment of this solution and not a limitation, the drive mechanism 52 has a second alignment groove 522 on the side near the first alignment groove 521 for alignment with the mounting end 6, and the mounting end 6 has an alignment protrusion 62 corresponding to the second alignment groove 522 on the side near the heat dissipation device 5. The second alignment groove 522 can cooperate with the alignment protrusion 62 to fix the position of the mounting end 6 in another direction.

[0040] Furthermore, as a preferred embodiment of this solution and not a limitation, the first heat dissipation end 12 is provided with a first locking groove 123 for mounting the mounting end 6 on the side near the mounting end 6, and the second heat dissipation end 22 is provided with a second locking groove 223 corresponding to the first locking groove 123 for mounting the mounting end 6 on the side near the mounting end 6. The first locking groove 123 and the second locking groove 223 can form a mating through hole when the first heat dissipation housing 1 and the second heat dissipation housing 2 are assembled as a whole. The mounting end 6 is provided with a mating part 63 corresponding to the mating through hole formed by the first locking groove 123 and the second locking groove 223. Optionally, the mating part 63 is provided in the mounting groove 61.

[0041] The first slot 123 and the second slot 223, when combined, can cooperate with the mating part 63. That is, the first mounting protrusion 122, the second mounting protrusion 222 and the mounting groove 61 cooperate, the second alignment groove 522 can cooperate with the alignment protrusion 62, and the cooperation of the first slot 123 and the second slot 223 with the mating part 63 completely fixes the position of the mounting end 6. That is, after the first heat sink 1 and the second heat sink 2 are installed and fixed, the position of the mounting end 6 is fixed.

[0042] In this embodiment, the first lamp post end 11 is provided with a first mounting hole 114, the second lamp post end 21 is provided with a first alignment hole 214 corresponding to the first mounting hole 114, the copper substrate 3 is provided with a mounting through hole 32 that aligns with the first mounting hole 114 and the first alignment hole 214, the first heat dissipation end 12 is provided with second mounting holes 124 on both sides for fixed installation, and the second heat dissipation end 22 is provided with a second alignment hole 224 corresponding to the second mounting hole 124. Optionally, the first lamp post end 11, the second lamp post end 21, and the copper substrate 3 are fixedly connected by threaded bolts through the first mounting hole 114, the mounting through hole 32, and the first alignment hole 214, and the first heat dissipation end 12 and the second heat dissipation end 22 are connected by threaded bolts through the second mounting hole 124 and the second alignment hole 224.

[0043] The first lamp post end 11, the copper substrate 3, and the second lamp post end 21 are fixed together by threaded bolts through the first mounting hole 114, the first alignment hole 214, and the mounting through hole 32. The first heat dissipation end 12 and the second heat dissipation end 22 are fixed together by threaded bolts through the second mounting hole 124 and the second alignment hole 224. This allows for a convenient and complete assembly of the product, ensuring tight installation between the components and guaranteeing safe and stable use of the product.

[0044] The working principle of this embodiment is as follows:

[0045] This utility model proposes a vehicle lamp with good heat dissipation performance. A copper substrate 3, corresponding to the first lamp post end 11, is provided between the first lamp post end 11 and the second lamp post end 21. This allows the copper substrate 3 to better contact the first heat dissipation housing 1 and the second heat dissipation housing 2, enabling better heat dissipation under the operation of the heat dissipation device 5. Simultaneously, the first heat dissipation through-hole 10 and the second heat dissipation through-hole 20 can dissipate heat from the first lamp post end 11 and the second lamp post end 21, as well as from the copper substrate 3. Its specific working principle is as follows:

[0046] When the heat dissipation device 5 is working, the bottom side of the copper substrate 3 near the heat dissipation device 5 can be partially cooled. In addition, the airflow generated by the cooling fan 51 of the heat dissipation device 5 can dissipate heat from the first heat dissipation through hole 10 and second heat dissipation through hole 20, through the channel between adjacent first heat dissipation fins 111 and the channel between adjacent second heat dissipation fins 211, and then dissipate heat from the copper substrate 3 and the lamp beads 4 disposed on the copper substrate 3. The copper substrate 3 corresponds to the first lamp pole end 11 and the second lamp pole end 21, so that when the first lamp pole end 11 and the second lamp pole end 21 are cooled, the copper substrate 3 can also be fully cooled by the heat dissipation device 5.

Claims

1. A vehicle lamp with good heat dissipation performance, characterized in that, The device includes a first heat dissipation housing (1) and a second heat dissipation housing (2) arranged opposite to each other to provide internal installation space and heat dissipation. The first heat dissipation housing (1) includes a first lamp post end (11) and a first heat dissipation end (12) connected to the first lamp post end (11). The second heat dissipation housing (2) includes a second lamp post end (21) and a second heat dissipation end (22) connected to the second lamp post end (21). A copper substrate (3) corresponding to the first lamp post end (11) is provided between the first lamp post end (11) and the second lamp post end (21). Lamp beads (4) for providing illumination are provided on both sides of the copper substrate (3). A heat dissipation device (5) for dissipating heat from the copper substrate (3) is provided between the first heat dissipation end (12) and the second heat dissipation end (22). A mounting end (6) for installing the vehicle lamp with good heat dissipation performance is provided on the side of the heat dissipation device (5) away from the copper substrate (3).

2. The vehicle lamp with good heat dissipation performance according to claim 1, characterized in that, The first lamp post end (11) is provided with a plurality of first heat sinks (111) in an annular interval. A plurality of first heat sinks (10) are provided between the first lamp post end (11) and the first heat sink end (12). The second lamp post end (21) is provided with a plurality of second heat sinks (211) in an annular interval. A plurality of second heat sinks (20) are provided between the second lamp post end (21) and the second heat sink end (22). The position of the first heat sink (10) corresponds to the interval between adjacent first heat sinks (111), and the position of the second heat sink (20) corresponds to the interval between adjacent second heat sinks (211). This is to enable the first lamp post end (11) and the copper substrate (3) between the first lamp post end (11) and the second lamp post end (21) to dissipate heat through the first heat sinks (10) and the second heat sinks (20) when the heat dissipation device (5) provides heat dissipation.

3. The vehicle lamp with good heat dissipation performance according to claim 1, characterized in that, The first lamp post end (11) is provided with a first light-transmitting hole (112) corresponding to the lamp bead (4), and the second lamp post end (21) is provided with a second light-transmitting hole (212) corresponding to the lamp bead (4).

4. The vehicle lamp with good heat dissipation performance according to claim 1, characterized in that, The heat dissipation device (5) includes a heat dissipation fan (51) and a drive mechanism (52) for driving the heat dissipation fan (51). A U-shaped mounting member (7) for clamping the copper substrate (3) and limiting the heat dissipation device (5) is provided between the first heat dissipation housing (1) and the second heat dissipation housing (2). The mounting member (7) has a mounting groove (71) corresponding to the copper substrate (3) on the side close to the copper substrate (3). The two legs of the mounting member (7) away from the copper substrate (3) have limiting protrusions (72) for limiting the heat dissipation device (5). The drive mechanism (52) has a first alignment groove (521) corresponding to the limiting protrusion (72) on the side close to the mounting end (6).

5. The vehicle lamp with good heat dissipation performance according to claim 1, characterized in that, The first heat dissipation end (12) has a first mounting protrusion (122) on the side near the mounting end (6) for mounting the mounting end (6), and the second heat dissipation end (22) has a second mounting protrusion (222) on the side near the mounting end (6) for mounting the mounting end (6). The mounting end (6) has a mounting groove (61) corresponding to the first mounting protrusion (122) and the second mounting protrusion (222).

6. The vehicle lamp with good heat dissipation performance according to claim 4, characterized in that, The drive mechanism (52) has a second alignment groove (522) on the side near the first alignment groove (521) for alignment with the mounting end (6), and the mounting end (6) has an alignment protrusion (62) corresponding to the second alignment groove (522) on the side near the heat dissipation device (5).

7. The vehicle lamp with good heat dissipation performance according to claim 1, characterized in that, The first heat dissipation end (12) is provided with a first locking groove (123) for mounting the mounting end (6) on the side near the mounting end (6), and the second heat dissipation end (22) is provided with a second locking groove (223) corresponding to the first locking groove (123) for mounting the mounting end (6) on the side near the mounting end (6). The first locking groove (123) and the second locking groove (223) can form a mating through hole when the first heat dissipation housing (1) and the second heat dissipation housing (2) are assembled into one. The mounting end (6) is provided with a mating part (63) corresponding to the mating through hole formed by the first locking groove (123) and the second locking groove (223).

8. The vehicle lamp with good heat dissipation performance according to claim 1, characterized in that, The first lamp post end (11) is provided with a first mounting hole (114), the second lamp post end (21) is provided with a first alignment hole (214) corresponding to the first mounting hole (114), the copper substrate (3) is provided with a mounting through hole (32) that aligns with the first mounting hole (114) and the first alignment hole (214), the first heat dissipation end (12) is provided with second mounting holes (124) on both sides for fixed installation, and the second heat dissipation end (22) is provided with a second alignment hole (224) corresponding to the second mounting hole (124).

9. The vehicle lamp with good heat dissipation performance according to claim 8, characterized in that, The first lamp post end (11) and the second lamp post end (21), and the copper substrate (3) are fixedly connected by the first mounting hole (114), the mounting through hole (32) and the first alignment hole (214) threaded bolts. The first heat dissipation end (12) and the second heat dissipation end (22) are connected by the second mounting hole (124) and the second alignment hole (224) threaded bolts.

10. The vehicle lamp with good heat dissipation performance according to claim 1, characterized in that, The copper substrate (3) has a positioning protrusion (31) for alignment and installation on the side near the first heat sink housing (1), and the first lamp post end (11) has a slot (113) corresponding to the positioning protrusion (31).

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