Heat dissipation structure, automobile lamp assembly and automobile

Abstract

The invention provides a heat dissipation structure, an automobile lamp assembly and an automobile. The heat dissipation structure comprises a fixing assembly, a heat pipe assembly and heat dissipation fins. The fixing assembly comprises a first fixing piece and a second fixing piece which are oppositely arranged in the first direction, and at least one of the first fixing piece and the second fixing piece is used for being connected with a piece to be cooled. The heat pipe assembly is arranged between the first fixing piece and the second fixing piece, at least two heat dissipation grooves are formed in the heat pipe assembly, and a heat dissipation fin is arranged in each heat dissipation groove; the first ends of the heat dissipation fins are connected with the first fixing piece, and the second ends of the heat dissipation fins are connected with the second fixing piece. According to the heat dissipation device, the heat dissipation grooves of the heat pipe assembly surround all the heat dissipation fins, the heat dissipation grooves and the heat dissipation fins are in contact and matched for use, and when a heat accumulation phenomenon occurs at a certain position of the heat dissipation fins, the heat pipe assembly in contact with the heat dissipation fins dissipates heat according to the liquid phase change principle, so that the heat dissipation effect is improved, and the use safety of the device is guaranteed; and use requirements are met.

Description

Technical Field

[0001] The present invention belongs to the technical field of heat dissipation structures, and particularly relates to a heat dissipation structure, a vehicle lamp assembly, and an automobile. Background Art

[0002] At present, many devices generate heat during use. To ensure the safe use of the devices, heat dissipation structures are required to dissipate heat from the devices. However, many existing heat dissipation structures can only dissipate heat passively, with poor heat dissipation effects and unable to meet the usage requirements. For example, LED vehicle lighting has gradually become a key area in the LED application field. Compared with traditional halogen lamps and xenon lamps, LED lamps have the advantages of low energy consumption, high brightness, long lifespan, fast startup, small size, and flexible structural design.

[0003] Although LED lamps have obvious advantages, the heat dissipation design is a difficult point in their research and development. Currently, the main heat dissipation method for LED lamps in the market is to use heat dissipation fins for convective heat transfer with air. However, due to the limitation of the internal cavity space of vehicle lamps, the passive heat dissipation method relying only on ordinary heat dissipation fins cannot meet the heat dissipation requirements for the long-term use of LED lamps, easily causing local heat accumulation and thus affecting the service life of LED lamps. Summary of the Invention

[0004] The present invention provides a heat dissipation structure, a vehicle lamp assembly, and an automobile to solve the problem of poor heat dissipation effect of existing heat dissipation structures.

[0005] A heat dissipation structure includes a fixing component, a heat pipe component, and heat dissipation fins;

[0006] The fixing component includes a first fixing member and a second fixing member oppositely arranged along a first direction, and at least one of the first fixing member and the second fixing member is used for connecting a component to be heat-dissipated;

[0007] The heat pipe component is arranged between the first fixing member and the second fixing member, and the heat pipe component forms at least two heat dissipation grooves, and each heat dissipation groove is provided with a heat dissipation fin;

[0008] The first end of the heat dissipation fin is connected to the first fixing member, and the second end of the heat dissipation fin is connected to the second fixing member.

[0009] Preferably, the heat pipe component includes N serpentine heat pipes arranged along the first direction, N≥1, and each serpentine heat pipe is provided with at least two U-shaped heat dissipation grooves along a second direction; each heat dissipation fin is arranged in the N U-shaped heat dissipation grooves along the first direction.

[0010] Preferably, the heat pipe assembly includes N sets of heat dissipation units arranged in the first direction, where N ≥ 1. Each heat dissipation unit includes a first main pipe, a second main pipe, and at least three branch pipes. The first main pipe and the second main pipe are arranged opposite to each other in the third direction. At least three branch pipes are arranged at intervals in the second direction between the first main pipe and the second main pipe, forming at least one annular heat dissipation groove; each heat dissipation fin is arranged in N annular heat dissipation grooves along the first direction.

[0011] Preferably, the heat dissipation structure further includes thermal conductive silicone; the thermal conductive silicone is arranged on the side of the first fixing member away from the second fixing member for connecting the component to be dissipated.

[0012] Preferably, the first fixing member is provided with a first positioning groove, and the second fixing member is provided with a second positioning groove, and the second positioning groove is arranged opposite to the first positioning groove;

[0013] The first end of the heat dissipation fin is clamped in the first positioning groove, and the second end of the heat dissipation fin is clamped in the second positioning groove.

[0014] Preferably, the heat dissipation structure further includes a protective housing and a fastener;

[0015] The protective housing is provided with an accommodating space, the second fixing member, the heat pipe assembly, and the heat dissipation fins are arranged in the accommodating space, and the protective housing and the first fixing member are connected by the fastener.

[0016] Preferably, the protective housing is provided with a first connecting protrusion, and the first connecting protrusion is provided with a first connecting hole;

[0017] The first fixing member is provided with a second connecting protrusion, and the second connecting protrusion is provided with a second connecting hole;

[0018] The fastener passes through the first connecting hole and the second connecting hole to connect the protective housing and the first fixing member.

[0019] Preferably, the side wall of the protective housing is provided with a first heat dissipation hole, and / or the first fixing member is provided with a second heat dissipation hole.

[0020] A headlight assembly includes the heat dissipation structure and a headlight component; the first fixing member of the heat dissipation structure is connected to the headlight component.

[0021] Preferably, the headlight component includes a lamp board and lamp beads; the lamp board is in close contact with the first fixing member; a plurality of lamp beads are evenly distributed on the lamp board.

[0022] A vehicle includes the headlight assembly.

[0023] The heat dissipation structure provided by the present invention includes a fixing component, a heat pipe component, and heat dissipation fins. The fixing component includes a first fixing member and a second fixing member oppositely arranged in a first direction. The two cooperate to form a receiving area for installing the heat pipe component and the heat dissipation fins. At least one of the first fixing member and the second fixing member is used to connect the component to be heat-dissipated, and the other is used for installation and positioning. The first end of the heat dissipation fin is connected to the first fixing member, and the second end of the heat dissipation fin is connected to the second fixing member. The component to be heat-dissipated transfers heat to the first fixing member, and heat dissipation can be achieved through convective heat exchange between the heat dissipation fins and the air. The heat pipe component is arranged between the first fixing member and the second fixing member. The heat pipe component forms at least two heat dissipation grooves, and each heat dissipation groove is provided with a heat dissipation fin. Such an arrangement makes the heat dissipation grooves of the heat pipe component surround each heat dissipation fin, and the two are in contact and used in cooperation. When heat accumulation occurs at a certain place on the heat dissipation fin, the heat pipe component in contact with the heat dissipation fin uses the principle of liquid phase change to dissipate heat, improving the heat dissipation effect, ensuring the safe use of the device, and meeting the use requirements.

[0024] Currently, the main heat dissipation method of LED lights on the market is to use convective heat exchange between heat dissipation fins and air. However, due to the limitation of the inner cavity space of automotive headlights, passive heat dissipation relying only on ordinary heat dissipation fins cannot meet the heat dissipation requirements of LED lights during long-term use, and it is easy to cause local heat accumulation, which in turn affects the service life of LED lights. The heat dissipation structure in this example is applied to LED lights. The LED light is the component to be heat-dissipated, making the heat dissipation grooves of the heat pipe component surround each heat dissipation fin, and the two are in contact and used in cooperation. When heat accumulation occurs at a certain place on the heat dissipation fin, the heat pipe component in contact with the heat dissipation fin uses the principle of liquid phase change to dissipate heat, improving the heat dissipation effect, solving the problem of easy local heat accumulation during the use of LED lights, and extending the service life of LED lights. Description of the Drawings

[0025] Figure 1 is an exploded view of the headlight assembly in the present invention;

[0026] Figure 2 is an axonometric view of the heat dissipation structure in the present invention;

[0027] Figure 3 is an axonometric view of the headlight assembly in the present invention.

[0028] Among them,

[0029] 1. Fixing component; 11. First fixing member; 12. Second fixing member; 13. First positioning groove; 14. Second positioning groove; 15. Second connecting protrusion; 16. Second connecting hole; 17. Second heat dissipation hole;

[0030] 2. Heat pipe component; 21. Heat dissipation groove; 22. Serpentine heat pipe;

[0031] 3. Heat dissipation fins;

[0032] 4. Thermal conductive silicone;

[0033] 5. Protective housing; 51. Accommodating space; 52. First connecting protrusion; 53. First connecting hole; 54. First heat dissipation hole;

[0034] 6. Fastener;

[0035] 7. Headlight assembly; 71. Lamp board; 72. Lamp beads. Detailed implementation manners

[0036] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention 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 only used to explain the present invention and are not used to limit the present invention.

[0037] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0038] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0039] An embodiment of the present invention provides a heat dissipation structure, referring to Figure 1 and Figure 2, the heat dissipation structure includes a fixing component 1, a heat pipe component 2 and heat dissipation fins 3; the fixing component 1 includes a first fixing member 11 and a second fixing member 12 arranged oppositely along a first direction, and at least one of the first fixing member 11 and the second fixing member 12 is used to connect the component to be dissipated; the heat pipe component 2 is arranged between the first fixing member 11 and the second fixing member 12, the heat pipe component 2 forms at least two heat dissipation grooves 21, and each heat dissipation groove 21 is provided with a heat dissipation fin 3; the first end of the heat dissipation fin 3 is connected to the first fixing member 11, and the second end of the heat dissipation fin 3 is connected to the second fixing member 12.

[0040] As an example, the heat dissipation structure includes a fixing component 1, a heat pipe component 2 and heat dissipation fins 3. The fixing component 1 includes a first fixing member 11 and a second fixing member 12 arranged oppositely along a first direction. The two cooperate to form an accommodation area for installing the heat pipe component 2 and the heat dissipation fins 3; moreover, at least one of the first fixing member 11 and the second fixing member 12 is used to connect the component to be dissipated, and the other is used for installation and positioning. The first end of the heat dissipation fin 3 is connected to the first fixing member 11, and the second end of the heat dissipation fin 3 is connected to the second fixing member 12. The component to be dissipated transfers heat to the first fixing member 11, and heat dissipation can be achieved through the convective heat transfer between the heat dissipation fins 3 and the air. The heat pipe component 2 is arranged between the first fixing member 11 and the second fixing member 12, and the heat pipe component 2 forms at least two heat dissipation grooves 21, and each heat dissipation groove 21 is provided with a heat dissipation fin 3; such an arrangement makes the heat dissipation grooves 21 of the heat pipe component 2 surround each heat dissipation fin 3, and the two are in contact and used in cooperation. When heat accumulation occurs at a certain place on the heat dissipation fin 3, the heat pipe component 2 in contact with the heat dissipation fin 3 uses the principle of liquid phase change to dissipate heat, improving the heat dissipation effect, ensuring the safe use of the device, and meeting the use requirements. Among them, the heat pipe component 2 can be connected to a condenser to conduct the heat into the condenser to achieve heat dissipation.

[0041] Currently, the main heat dissipation method of LED lights on the market is to use the convective heat transfer between the heat dissipation fins 3 and the air. However, due to the limitation of the inner cavity space of automotive headlights, passive heat dissipation relying only on ordinary heat dissipation fins 3 cannot meet the heat dissipation requirements for the long-term use of LED lights, and it is easy to cause local heat accumulation, thereby affecting the service life of LED lights. The heat dissipation structure in this example is applied to LED lights, and the LED light is the component to be dissipated, making the heat dissipation grooves 21 of the heat pipe component 2 surround each heat dissipation fin 3, and the two are in contact and used in cooperation. When heat accumulation occurs at a certain place on the heat dissipation fin 3, the heat pipe component 2 in contact with the heat dissipation fin 3 uses the principle of liquid phase change to dissipate heat, improving the heat dissipation effect, solving the problem of easy local heat accumulation during the use of LED lights, and extending the service life of LED lights.

[0042] In one embodiment, refer to Figure 1 and Figure 2, the heat pipe assembly 2 includes N serpentine heat pipes 22 arranged in the first direction, N≥1, and at least two U-shaped heat dissipation grooves are provided on each serpentine heat pipe 22; each heat dissipation fin 3 is arranged in the N U-shaped heat dissipation grooves in the first direction.

[0043] As an example, the first structure of the heat pipe assembly 2 is introduced; the heat pipe assembly 2 includes N serpentine heat pipes 22 arranged in the first direction, N≥1, and at least two U-shaped heat dissipation grooves are provided on each serpentine heat pipe 22 along the second direction, and each heat dissipation fin 3 is arranged in the N U-shaped heat dissipation grooves in the first direction. In this way, each heat dissipation fin 3 can penetrate through at least one layer of serpentine heat pipes 22, and the heat dissipation fin 3 can be in contact with at least one U-shaped heat dissipation groove of the heat pipe assembly 2. When used in combination, when heat accumulation occurs at a certain place of the heat dissipation fin 3, the heat pipe assembly 2 in contact with the heat dissipation fin 3 uses the principle of liquid phase change to dissipate heat, improving the heat dissipation effect.

[0044] In an embodiment, referring to Figure 1 and Figure 2 , the heat pipe assembly 2 includes N heat dissipation units arranged in the first direction, N≥1, and each heat dissipation unit includes a first main pipe, a second main pipe and at least three branch pipes. The first main pipe and the second main pipe are arranged opposite to each other in the third direction, and at least three branch pipes are arranged at intervals in the second direction between the first main pipe and the second main pipe to form at least two annular heat dissipation grooves; each heat dissipation fin 3 is arranged in the N annular heat dissipation grooves in the first direction.

[0045] Among them, referring to Figure 1 , the first direction is the direction from the second fixing member 12 to the first fixing member 11, the second direction and the third direction are directions perpendicular to the first direction, and the second direction and the third direction are perpendicular to each other. For example, if the first direction is the left-right direction, the second direction is the front-back direction, and the third direction is the up-down direction.

[0046] As an example, the second structure of the heat pipe assembly 2 is introduced; the heat pipe assembly 2 includes N heat dissipation units along the first direction, N≥1, and each heat dissipation unit includes a first main pipe, a second main pipe, and at least three branch pipes. The first main pipe and the second main pipe are arranged opposite to each other along the third direction, and an installation area is formed between the first main pipe and the second main pipe for installing the branch pipes; at least three branch pipes are arranged at intervals along the second direction between the first main pipe and the second main pipe to form at least two annular heat dissipation grooves, and a heat dissipation fin 3 is arranged in each annular heat dissipation groove; a liquid inlet is provided on the first main pipe, and a liquid outlet is provided on the second main pipe. The coolant can flow into the branch pipes from the first main pipe and then flow into the second main pipe from the branch pipes, so that the annular heat dissipation grooves are always filled with the coolant for dissipating heat from the heat dissipation fins 3; each heat dissipation fin 3 is arranged in N annular heat dissipation grooves along the first direction, so that each heat dissipation fin 3 can penetrate between multiple heat dissipation units. Multiple parts of the heat dissipation fin 3 are in contact with the annular heat dissipation grooves of the heat pipe assembly 2. When heat accumulation occurs at a certain part of the heat dissipation fin 3, the heat pipe assembly 2 in contact with the heat dissipation fin 3 uses the principle of liquid phase change to dissipate heat, improving the heat dissipation effect.

[0047] In one embodiment, referring to Figure 1 、 Figure 2 and Figure 3 , the heat dissipation structure further includes a thermal conductive silicone 4; the thermal conductive silicone 4 is arranged on the side of the first fixing member 11 away from the second fixing member 12 for connecting the component to be heat-dissipated.

[0048] As an example, the heat dissipation structure further includes a thermal conductive silicone 4; the thermal conductive silicone 4 is arranged on the side of the first fixing member 11 away from the second fixing member 12 for connecting the component to be heat-dissipated, facilitating the transfer of the heat of the component to be heat-dissipated to the first fixing member 11 and improving the heat dissipation efficiency.

[0049] In one embodiment, referring to Figure 1 and Figure 2 , the first fixing member 11 is provided with a first positioning groove 13, and the second fixing member 12 is provided with a second positioning groove 14. The second positioning groove 14 is arranged opposite to the first positioning groove 13; the first end of the heat dissipation fin 3 is clamped in the first positioning groove 13, and the second end of the heat dissipation fin 3 is clamped in the second positioning groove 14.

[0050] As an example, a first positioning groove 13 is provided on the first fixing member 11, and a second positioning groove 14 is provided on the second fixing member 12. The second positioning groove 14 is arranged opposite to the first positioning groove 13. The first end of the heat dissipation fin 3 is clamped in the first positioning groove 13, and the second end of the heat dissipation fin 3 is clamped in the second positioning groove 14. Such an arrangement facilitates the installation and disassembly of the heat dissipation fin 3 and provides convenience for replacing the damaged heat dissipation fin 3. The slot-type cooperation mode between the heat dissipation fin 3, the first fixing member 11 and the second fixing member 12 in this example makes the partial disassembly and assembly of the heat dissipation fin 3 and the heat pipe assembly 2 more convenient. Specifically, when a part of the heat dissipation fin 3 is damaged, the second fixing member 12 is removed, and then the heat dissipation fin 3 is separated from the heat pipe assembly 2. At this time, the damaged heat dissipation fin 3 can be disengaged from the first positioning groove 13, so as to replace the heat dissipation fin 3.

[0051] In one embodiment, referring to Figure 1 and Figure 2 , the heat dissipation structure further includes a protective housing 5 and a fastener 6. A receiving space 51 is provided in the protective housing 5. The second fixing member 12, the heat pipe assembly 2 and the heat dissipation fin 3 are arranged in the receiving space 51. The protective housing 5 and the first fixing member 11 are connected by the fastener 6.

[0052] As an example, the heat dissipation structure further includes a protective housing 5 and a fastener 6. The protective housing 5 includes a main board and four side boards. The four side boards are sequentially connected and surround the four sides of one side of the main board to form a receiving space 51. The second fixing member 12, the heat pipe assembly 2 and the heat dissipation fin 3 are arranged in the receiving space 51, which can protect the heat pipe assembly 2 and the heat dissipation fin 3 from being damaged by collision. The protective housing 5 and the first fixing member 11 are connected by the fastener 6, which not only ensures the connection reliability between the protective housing 5 and the first fixing member 11, but also provides convenience for disassembling the heat dissipation structure.

[0053] In one embodiment, referring to Figure 1 , a first connection protrusion 52 is provided on the protective housing 5, and a first connection hole 53 is provided on the first connection protrusion 52. A second connection protrusion 15 is provided on the first fixing member 11, and a second connection hole 16 is provided on the second connection protrusion 15. The fastener 6 is inserted into the first connection hole 53 and the second connection hole 16 to connect the protective housing 5 and the first fixing member 11.

[0054] As an example, a first connection protrusion 52 is provided on the protective housing 5, and a first connection hole 53 is provided on the first connection protrusion 52; a second connection protrusion 15 is provided on the first fixing member 11, and a second connection hole 16 is provided on the second connection protrusion 15; a fastener 6 is passed through the first connection hole 53 and the second connection hole 16 to connect the protective housing 5 and the first fixing member 11, ensuring the connection reliability between the protective housing 5 and the first fixing member 11. In this example, there are three first connection protrusions 52, two of which are spaced on the first side surface of the protective housing 5, and the other is provided on the opposite side surface of the first side surface of the protective housing 5. There are three second connection protrusions 15, two of which are spaced on the first side of the first fixing member 11, and the other is provided on the opposite side of the first side of the first fixing member 11, so that the connection between the protective housing 5 and the first fixing member 11 is more reliable. Two first connection holes 53 are provided on one of the first connection protrusions 52, and correspondingly, two second connection holes 16 are provided on one of the second connection protrusions 15, which can provide a limit for the connection between the protective housing 5 and the first fixing member 11 and avoid the situation of wrong holes affecting the installation. The first connection hole 53 and the second connection hole 16 can be threaded holes, and the fastener 6 is a bolt. Using the principle of threaded connection, the protective housing 5 and the first fixing member 11 can be directly connected, which not only ensures the connection reliability between the protective housing 5 and the first fixing member 11, but also provides convenience for disassembling the heat dissipation structure.

[0055] In one embodiment, referring to Figure 1 and Figure 2 , a first heat dissipation hole 54 is provided on the side wall of the protective housing 5, and / or a second heat dissipation hole 17 is provided on the first fixing member 11.

[0056] As an example, a first heat dissipation hole 54 is provided on the side wall of the protective housing 5, which can effectively dissipate heat from the accommodation space 51 of the protective housing 5. A second heat dissipation hole 17 is provided on the first fixing member 11, which can effectively dissipate heat from the first fixing member 11. When the first fixing member 11 is connected to the protective housing 5, by providing a first heat dissipation hole 54 on the side wall of the protective housing 5 and / or a second heat dissipation hole 17 on the first fixing member 11, the accommodation space 51 of the protective housing 5 can be effectively dissipated, improving the heat dissipation effect.

[0057] An embodiment of the present invention provides a vehicle lamp assembly, referring to Figure 1 and Figure 3 , including a heat dissipation structure and a vehicle lamp component 7; the first fixing member 11 of the heat dissipation structure is connected to the vehicle lamp component 7.

[0058] As an example, the vehicle lamp assembly includes a heat dissipation structure and a vehicle lamp component 7; the first fixing member 11 of the heat dissipation structure is connected to the vehicle lamp component 7; the heat dissipation structure includes a fixing component 1, a heat pipe component 2 and heat dissipation fins 3; the fixing component 1 includes a first fixing member 11 and a second fixing member 12 that are oppositely arranged in a first direction, and the two cooperate to form a receiving area for installing the heat pipe component 2 and the heat dissipation fins 3; the first fixing member 11 is used to connect the vehicle lamp component 7, the first end of the heat dissipation fin 3 is connected to the first fixing member 11, and the second end of the heat dissipation fin 3 is connected to the second fixing member 12. The vehicle lamp component 7 transfers heat to the first fixing member 11, and heat dissipation can be achieved through convective heat transfer between the heat dissipation fin 3 and the air; the heat pipe component 2 is arranged between the first fixing member 11 and the second fixing member 12, and the heat pipe component 2 forms at least two heat dissipation grooves 21, and each heat dissipation groove 21 is provided with a heat dissipation fin 3; such an arrangement enables the heat dissipation grooves 21 of the heat pipe component 2 to surround each heat dissipation fin 3, and the two are in contact and used in cooperation. When heat accumulation occurs at a certain place on the heat dissipation fin 3, the heat pipe component 2 in contact with the heat dissipation fin 3 uses the principle of liquid phase change to dissipate heat, improving the heat dissipation effect, ensuring the safe use of the device, and meeting the use requirements.

[0059] The heat dissipation structure in this example is applied to the vehicle lamp component 7. The vehicle lamp component 7 uses an LED lamp, enabling the heat dissipation grooves 21 of the heat pipe component 2 to surround each heat dissipation fin 3, and the two are in contact and used in cooperation. When heat accumulation occurs at a certain place on the heat dissipation fin 3, the heat pipe component 2 in contact with the heat dissipation fin 3 uses the principle of liquid phase change to dissipate heat, improving the heat dissipation effect, solving the problem of easy local heat accumulation during the use of the LED lamp, and extending the service life of the LED lamp.

[0060] In an embodiment, referring to Figure 3 , the vehicle lamp component 7 includes a lamp board 71 and lamp beads 72; the lamp board 71 is in close contact with the first fixing member 11; a plurality of lamp beads 72 are evenly distributed on the lamp board 71.

[0061] As an example, the vehicle lamp assembly 7 includes a lamp board 71 and lamp beads 72; the lamp board 71 is in close contact with the first fixing member 11; a plurality of lamp beads 72 are evenly distributed on the lamp board 71, which can provide a good lighting effect. In this example, the lamp board 71 is an LED lamp board, and the lamp beads 72 are LED lamp beads; the heat generated during the operation of the LED lamp beads is transferred to the first fixing member 11 through the LED lamp board, and then transferred to the heat dissipation fins 3. When heat accumulation occurs at a certain place on the heat dissipation fins 3, the heat pipe assembly 2 in contact with the heat dissipation fins 3 uses the principle of liquid phase change to dissipate heat, which can conduct the heat to the condensation section and achieve heat dissipation, improving the heat dissipation effect, ensuring the safe use of the device, and meeting the use requirements. Among them, the thermal conductive silicone 4 is arranged between the first fixing member 11 and the LED lamp board, and the thermal conductive silicone 4 facilitates the transfer of heat from the LED lamp board to the first fixing member 11, improving the heat transfer efficiency. In addition, protrusions corresponding to the second connection protrusions 15 of the first fixing member 11 are provided on both the thermal conductive silicone 4 and the lamp board 71, which facilitates the connection of the thermal conductive silicone 4 and the lamp board 71 to the first fixing member 11. While ensuring the connection reliability, the contact area is increased, which can further improve the heat transfer efficiency.

[0062] An embodiment of the present invention provides a vehicle, including a vehicle lamp assembly.

[0063] As an example, the vehicle lamp assembly includes a heat dissipation structure and a vehicle lamp assembly 7; the first fixing member 11 of the heat dissipation structure is connected to the vehicle lamp assembly 7; the heat dissipation structure includes a fixing assembly 1, a heat pipe assembly 2 and heat dissipation fins 3; the fixing assembly 1 includes a first fixing member 11 and a second fixing member 12 arranged opposite to each other in the first direction, and the two cooperate to form an accommodation area for installing the heat pipe assembly 2 and the heat dissipation fins 3; the first fixing member 11 is used to connect the vehicle lamp assembly 7, the first end of the heat dissipation fins 3 is connected to the first fixing member 11, the second end of the heat dissipation fins 3 is connected to the second fixing member 12, and the vehicle lamp assembly 7 transfers heat to the first fixing member 11, and heat dissipation can be achieved through the convective heat transfer between the heat dissipation fins 3 and the air; the heat pipe assembly 2 is arranged between the first fixing member 11 and the second fixing member 12, and the heat pipe assembly 2 forms at least two heat dissipation grooves 21, and each heat dissipation groove 21 is provided with a heat dissipation fin 3; such a setting makes the heat dissipation grooves 21 of the heat pipe assembly 2 surround each heat dissipation fin 3, and the two are in contact and cooperate with each other. When heat accumulation occurs at a certain place on the heat dissipation fin 3, the heat pipe assembly 2 in contact with the heat dissipation fin 3 uses the principle of liquid phase change to dissipate heat, improving the heat dissipation effect, ensuring the safe use of the device, and meeting the use requirements.

[0064] The heat dissipation structure in this example is applied to the headlight assembly 7. The headlight assembly 7 uses an LED lamp, and the heat dissipation grooves 21 of the heat pipe assembly 2 surround each heat dissipation fin 3, and the two are in contact and used together. When heat accumulates at a certain place on the heat dissipation fin 3, the heat pipe assembly 2 in contact with the heat dissipation fin 3 uses the principle of liquid phase change to dissipate heat, improving the heat dissipation effect, solving the problem of local heat accumulation that easily occurs during the use of the LED lamp, and extending the service life of the LED lamp.

[0065] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat dissipation structure, characterized in that, It includes a fixing component, a heat pipe component and heat dissipation fins; The fixing component includes a first fixing member and a second fixing member oppositely arranged along a first direction, and at least one of the first fixing member and the second fixing member is used for connecting the component to be heat-dissipated; The heat pipe component is arranged between the first fixing member and the second fixing member, the heat pipe component forms at least two heat dissipation grooves, and each heat dissipation groove is provided with one of the heat dissipation fins; A first end of the heat dissipation fin is connected to the first fixing member, and a second end of the heat dissipation fin is connected to the second fixing member.

2. The heat dissipation structure according to claim 1, characterized in that, The heat pipe component includes N serpentine heat pipes arranged along the first direction, N≥1, and each serpentine heat pipe is provided with at least two U-shaped heat dissipation grooves along a second direction; each heat dissipation fin is arranged in the N U-shaped heat dissipation grooves along the first direction.

3. The heat dissipation structure according to claim 1, characterized in that, The heat pipe component includes N groups of heat dissipation units arranged along the first direction, N≥1, and each heat dissipation unit includes a first main pipe, a second main pipe and at least three branch pipes. The first main pipe and the second main pipe are oppositely arranged along a third direction, and at least three branch pipes are arranged at intervals between the first main pipe and the second main pipe along the second direction to form at least one annular heat dissipation groove; each heat dissipation fin is arranged in the N annular heat dissipation grooves along the first direction.

4. The heat dissipation structure according to claim 1, wherein, The heat dissipation structure further includes thermal conductive silicone; the thermal conductive silicone is arranged on a side of the first fixing member away from the second fixing member and is used for connecting the component to be heat-dissipated.

5. The heat dissipation structure according to claim 1, characterized in that, A first positioning groove is provided on the first fixing member, and a second positioning groove is provided on the second fixing member, and the second positioning groove is oppositely arranged to the first positioning groove; A first end of the heat dissipation fin is snap-fitted in the first positioning groove, and a second end of the heat dissipation fin is snap-fitted in the second positioning groove.

6. The heat dissipation structure according to claim 1, wherein, The heat dissipation structure further includes a protective housing and a fastener; An accommodation space is provided in the protective housing, the second fixing member, the heat pipe component and the heat dissipation fins are arranged in the accommodation space, and the protective housing and the first fixing member are connected by the fastener.

7. The heat dissipation structure according to claim 6, wherein, A first connection protrusion is provided on the protective housing, and a first connection hole is provided on the first connection protrusion; A second connection protrusion is provided on the first fixing member, and a second connection hole is provided on the second connection protrusion; The fastener passes through the first connection hole and the second connection hole to connect the protective housing and the first fixing member.

8. The heat dissipation structure according to claim 6, characterized in that, A first heat dissipation hole is provided on a side wall of the protective housing, and / or a second heat dissipation hole is provided on the first fixing member.

9. A vehicle lamp assembly, characterized in that, It includes the heat dissipation structure according to any one of claims 1-8 and a vehicle lamp assembly; the first fixing member of the heat dissipation structure is connected to the vehicle lamp assembly.

10. The headlight assembly according to claim 9, characterized in that, The vehicle lamp assembly includes a lamp board and lamp beads; the lamp board is in close contact with the first fixing member; a plurality of the lamp beads are evenly distributed on the lamp board.

11. A vehicle, characterized in that, It includes the vehicle lamp assembly according to any one of claims 9-10.

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