Liquid-cooled luminaire

Abstract

This application provides a liquid-cooled lamp, belonging to the field of lighting fixture technology, including a housing, a lighting assembly, a front liquid-cooling component, and a rear liquid-cooling component. The housing has an illumination cavity. The lighting assembly is disposed within the housing to generate light directed towards the illumination cavity. The front liquid-cooling component is disposed within the housing and located on the side of the lighting assembly facing the illumination cavity. The front liquid-cooling component is used to connect with the lighting assembly to reduce the temperature of the side of the lighting assembly facing the illumination cavity. The rear liquid-cooling component is disposed within the housing and located on the side of the lighting assembly away from the illumination cavity. The rear liquid-cooling component is used to connect with the lighting assembly to reduce the temperature of the side of the lighting assembly away from the illumination cavity. Compared to traditional single-sided heat dissipation or air cooling methods, the liquid-cooled lamp provided by this application has a larger heat dissipation area and higher heat exchange efficiency with its double-sided liquid-cooling design, which can quickly reduce the lamp assembly temperature and avoid light decay or shortened lifespan due to overheating.

Description

Technical Field

[0001] This application belongs to the field of lighting fixture technology, and more specifically, relates to a liquid-cooled luminaire. Background Technology

[0002] LED lighting fixtures boast significant advantages such as high efficiency, energy saving, long lifespan, and environmental friendliness, and have been widely used in industrial lighting, outdoor landscaping, and commercial displays. With increasing lighting demands, high-power LED lighting fixtures, due to their high brightness and high luminous efficacy, are becoming increasingly popular in large venues, road lighting, and factories with high ceilings. When LED chips are powered on, some electrical energy is converted into visible light, while the remaining energy is released as heat, causing the fixture temperature to rise. If this heat cannot be dissipated in time, exceeding a certain temperature threshold will significantly reduce the LED's luminous efficacy, color temperature stability, and lifespan, and may even lead to premature aging or burnout of the fixture.

[0003] Currently, LED lighting fixtures typically employ two heat dissipation methods: passive and active. Passive heat dissipation usually uses heat sink fins made of materials with high thermal conductivity to transfer heat to the environment through natural convection. Active heat dissipation typically uses forced air cooling or liquid cooling, which accelerates the flow of air or coolant through external force to improve heat dissipation efficiency.

[0004] The inventors discovered that the traditional heat dissipation structure of LED lamps has a certain distance between it and the core heat-generating components such as LED chips and circuit boards. Heat must be conducted through multiple layers of media, including the substrate and casing, leading to increased thermal resistance and response delay. These defects make it difficult for existing LED lamps to meet the application requirements of long lifespan and high reliability when operating at continuous high power. Utility Model Content

[0005] The purpose of this application is to provide a liquid-cooled lamp to solve the technical problem that existing heat dissipation methods are insufficient to meet the heat dissipation requirements of high-power LED lamps.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] A liquid-cooled luminaire is provided, comprising:

[0008] The housing has an illumination cavity;

[0009] An illumination assembly, disposed within the housing, for generating light directed toward the illumination cavity; and

[0010] A front liquid cooling component is disposed within the housing and located on the side of the lighting assembly facing the lighting cavity; the front liquid cooling component is used to connect with the lighting assembly to reduce the temperature of the side of the lighting assembly facing the lighting cavity; and

[0011] A rear liquid cooling component is disposed within the housing and is located on the side of the lighting assembly facing away from the lighting cavity; the rear liquid cooling component is used to connect with the lighting assembly to reduce the temperature of the side of the lighting assembly facing away from the lighting cavity.

[0012] In one possible implementation, the lighting assembly includes:

[0013] A circuit board is disposed within the housing, and the thickness direction of the circuit board is parallel to the axial direction of the illumination cavity; and

[0014] Multiple groups of LED beads are arranged side by side along a straight line on the side of the circuit board facing the lighting cavity, and each group of LED beads includes multiple LED beads arranged side by side along a direction perpendicular to the straight line; each LED bead is facing the lighting cavity.

[0015] In one possible implementation, the front liquid cooling component includes:

[0016] A first liquid storage pipeline is disposed within the housing and adopts a ring structure that surrounds the outer periphery of the circuit board and is connected end to end; the axial direction of the ring structure is parallel to the axial direction of the lighting cavity; the interior of the first liquid storage pipeline is used to store a heat-conducting medium; and

[0017] Multiple first branch pipes are arranged side by side along the straight line on the side of the circuit board facing the lighting cavity, and the axial direction of each first branch pipe is perpendicular to the straight line; the multiple first branch pipes and multiple sets of LED beads are arranged alternately along the straight line, and each first branch pipe is connected to the side of the circuit board facing the lighting cavity; each first branch pipe is connected to the first liquid storage pipeline.

[0018] In one possible implementation, the cross-sectional width of each of the first branch tubes gradually decreases along the direction from the circuit board toward the illumination cavity.

[0019] In one possible implementation, the post-liquid cooling component includes:

[0020] A second liquid storage pipeline is disposed within the housing and adopts a ring structure that surrounds the outer periphery of the circuit board and is connected end to end; the axial direction of the ring structure is parallel to the axial direction of the lighting cavity; the interior of the second liquid storage pipeline is used to store a heat-conducting medium; and

[0021] Multiple second branch pipes are arranged in parallel on the side of the circuit board facing away from the lighting cavity, perpendicular to the straight line direction, and the axial direction of each second branch pipe is parallel to the straight line direction; each second branch pipe is connected to the side of the circuit board facing away from the lighting cavity; each second branch pipe is connected to the second liquid storage pipeline.

[0022] In one possible implementation, the housing includes:

[0023] Front housing; the lighting cavity is formed on the front housing, and a mounting groove is formed on the side of the front housing facing away from the lighting cavity, and the mounting groove communicates with the lighting cavity; the front housing is also provided with a light-transmitting plate for sealing the lighting cavity;

[0024] The rear housing is detachably connected to the side of the front housing facing away from the lighting cavity; the rear housing has an accessory cavity coaxially arranged with the lighting cavity and communicating with the mounting groove, the accessory cavity being used to accommodate power supply components and control components; the rear housing is also provided with a rear cover plate for closing the accessory cavity;

[0025] The lighting assembly is disposed in the mounting groove, the front liquid cooling component is disposed on the front housing, and the rear liquid cooling component is disposed on the rear housing.

[0026] In one possible implementation, the housing further includes:

[0027] A fixing component is disposed between the front housing and the rear housing for connecting with the lighting assembly to fix the position of the lighting assembly.

[0028] In one possible implementation, the lighting assembly has multiple positioning holes arranged in parallel, and the axis of each positioning hole is parallel to the axis of the lighting cavity; the fixing member includes:

[0029] Multiple positioning posts are arranged side-by-side within the mounting groove, and each positioning post corresponds one-to-one with a plurality of positioning holes; each positioning post is adapted to be inserted into its corresponding positioning hole; and

[0030] Multiple alignment holes are arranged side by side on the rear housing, and each of the multiple alignment holes corresponds to a multiple of the positioning pins; each of the positioning pins is adapted to be inserted into the corresponding alignment hole.

[0031] Each of the positioning posts is fitted with a compression spring, and the two ends of the compression spring are respectively connected to the mounting groove and the rear housing.

[0032] In one possible implementation, both the front housing and the rear housing have a plurality of first heat dissipation fins spaced apart along their circumference; the rear cover plate has a plurality of second heat dissipation fins arranged side by side on the side facing away from the accessory cavity.

[0033] In one possible implementation, a sealing gasket is provided between the front housing and the rear housing, and between the rear housing and the rear cover plate.

[0034] In this embodiment, after the lamp is powered on, the lighting assembly inside the housing starts to work, generating light and projecting it towards the lighting cavity. During the light emission process, the lighting assembly generates heat. The heat on the side facing the lighting cavity is conducted through the front liquid cooling component, and the heat on the side away from the lighting cavity is conducted through the rear liquid cooling component. The front and rear liquid cooling components, through the flow of internal coolant, conduct the absorbed heat from the lighting assembly and dissipate it to the outside of the housing. The liquid cooling system continuously circulates heat dissipation, maintaining the temperature on both sides of the lighting assembly within a reasonable range, ensuring stable operation of the lamp.

[0035] The front and rear liquid cooling components are in direct contact with both sides of the lighting assembly, forming a bidirectional heat conduction path that covers the core heat-generating area of ​​the lighting assembly. The coolant inside the front and rear liquid cooling components absorbs heat from the lighting assembly through convection and then releases the heat to the outside through the shell or external heat dissipation structure, efficiently transferring heat by utilizing the high specific heat capacity of the liquid. Simultaneous heat dissipation on both sides prevents local overheating of the lighting assembly and ensures that the operating temperature of the lighting assembly remains stable below the threshold.

[0036] Compared with the prior art, the liquid-cooled lamp provided in this application has a larger heat dissipation area and higher heat exchange efficiency than the traditional single-sided heat dissipation or air cooling method. It can quickly reduce the temperature of the lighting group, avoid light decay or shortened life due to overheating, reduce the impact of temperature fluctuations on luminous efficiency and color decay, and ensure long-term stable lighting performance. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 A three-dimensional structural diagram of the liquid-cooled lamp provided in the embodiment of this application;

[0039] Figure 2 A cross-sectional structural diagram of the liquid-cooled lamp provided in the embodiments of this application;

[0040] Figure 3 for Figure 2 A magnified structural diagram of region I in the middle;

[0041] Figure 4 This is a front view structural diagram of the liquid-cooled lamp provided in an embodiment of this application;

[0042] Figure 5 For along Figure 4 Schematic diagram of the cross-sectional structure of line AA in the middle;

[0043] Figure 6 For along Figure 4 Schematic diagram of the cross-sectional structure of the middle BB line;

[0044] Figure 7 for Figure 6 Enlarged structural diagram of region II;

[0045] Figure 8 Exploded view of the liquid-cooled lamp provided in the embodiments of this application Figure 1 ;

[0046] Figure 9 Exploded view of the liquid-cooled lamp provided in the embodiments of this application Figure 2 ;

[0047] The following are the labeling elements in the figure:

[0048] 1. Housing; 11. Front housing; 111. Illumination cavity; 112. Mounting groove; 113. Light-transmitting plate; 12. Rear housing; 121. Accessory cavity; 122. Rear cover plate; 2. Illumination assembly; 21. Circuit board; 22. LED beads; 23. Positioning hole; 3. Front liquid cooling component; 31. First liquid storage pipeline; 32. First branch pipe; 4. Rear liquid cooling component; 41. Second liquid storage pipeline; 42. Second branch pipe; 51. Positioning post; 52. Alignment hole; 53. Compression spring; 6. First heat dissipation fin; 7. Second heat dissipation fin; 8. Sealing gasket. Detailed Implementation

[0049] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0050] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0051] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0053] Please refer to the following: Figures 1 to 9 The liquid-cooled luminaire provided in this application will now be described. The liquid-cooled luminaire includes a housing 1, a lighting assembly 2, a front liquid-cooling component 3, and a rear liquid-cooling component 4.

[0054] The housing 1 has an illumination cavity 111; the illumination cavity 111 has a structure that is inclined outward along its own axis, and the inner wall of the illumination cavity 111 has a reflective coating. The interior of the housing 1 is also used to install components such as power supply components and control components to provide conditions for the normal operation of the lamp.

[0055] The lighting assembly 2 is disposed inside the housing 1 and is used to generate light toward the lighting cavity 111.

[0056] The front liquid cooling component 3 is disposed inside the housing 1 and is located on the side of the lighting assembly 2 facing the lighting cavity 111; the front liquid cooling component 3 is used to connect with the lighting assembly 2 to reduce the temperature of the side of the lighting assembly 2 facing the lighting cavity 111.

[0057] The rear liquid cooling component 4 is disposed inside the housing 1 and is located on the side of the lighting assembly 2 facing away from the lighting cavity 111; the rear liquid cooling component 4 is used to connect with the lighting assembly 2 to reduce the temperature of the side of the lighting assembly 2 facing away from the lighting cavity 111.

[0058] The front liquid cooling component 3 and the rear liquid cooling component 4 are filled with heat-conducting media (such as water, heat-conducting oil, etc.). Through the direct contact between the front liquid cooling component 3 and the rear liquid cooling component 4 and the lighting assembly 2, the heat is absorbed and conducted by the heat-conducting media, thereby achieving bidirectional cooling of the core heating area of ​​the lamp.

[0059] In this embodiment, after the lamp is powered on, the lighting assembly 2 inside the housing 1 starts to work, generating light and projecting it towards the lighting cavity 111. During the light emission process, the lighting assembly 2 generates heat. The heat on the side facing the lighting cavity 111 is conducted through the front liquid cooling component 3, and the heat on the side away from the lighting cavity 111 is conducted through the rear liquid cooling component 4. The front liquid cooling component 3 and the rear liquid cooling component 4, through the flow of internal coolant, conduct the absorbed heat from the lighting assembly 2 and dissipate it to the outside of the housing 1. The liquid cooling system continuously circulates heat dissipation, maintaining the temperature on both sides of the lighting assembly 2 within a reasonable range, ensuring stable operation of the lamp.

[0060] The front liquid cooling component 3 and the rear liquid cooling component 4 are in direct contact with the two sides of the lighting assembly 2, forming a bidirectional heat conduction path that covers the core heat-generating area of ​​the lighting assembly 2. The coolant inside the front liquid cooling component 3 and the rear liquid cooling component 4 absorbs heat from the lighting assembly 2 through convection, and then releases the heat to the outside through the shell 1 or an external heat dissipation structure, utilizing the high specific heat capacity of the liquid to efficiently transfer heat. The dual-sided synchronous heat dissipation avoids local overheating of the lighting assembly 2 and ensures that the operating temperature of the lighting assembly 2 remains stable below the threshold.

[0061] Compared with the prior art, the liquid-cooled lamp provided in this application embodiment has a larger heat dissipation area and higher heat exchange efficiency than the traditional single-sided heat dissipation or air cooling method. It can quickly reduce the temperature of the lighting lamp group 2, avoid light decay or shortened life due to overheating, reduce the impact of temperature fluctuation on luminous efficiency and color decay, and ensure long-term stable lighting performance.

[0062] In some embodiments, the lighting assembly 2 described above may employ, for example... Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9 The structure shown is described in the following document. Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9 The lighting assembly 2 includes a circuit board 21 and multiple sets of LED beads 22.

[0063] The circuit board 21 is disposed inside the housing 1, and the thickness direction of the circuit board 21 is parallel to the axis of the lighting cavity 111.

[0064] Multiple groups of LED beads 22 are arranged side by side along a straight line on the side of the circuit board 21 facing the lighting cavity 111, and each group of LED beads 22 includes multiple LED beads 22 arranged side by side along a direction perpendicular to the straight line; each LED bead 22 is facing the lighting cavity 111.

[0065] The thickness direction of the circuit board 21 is parallel to the axis of the lighting cavity 111, which ensures that the light from the LED beads 22 shines directly into the lighting cavity 111, and the array arrangement of multiple sets of LED beads 22 can achieve large-area uniform lighting.

[0066] The arrangement of the LED beads 22 can balance the uniformity of lighting and the heat dissipation area, thereby maximizing the contact area between the circuit board 21 and the front liquid cooling component 3 or the rear liquid cooling component 4, so as to improve the heat conduction efficiency.

[0067] In some embodiments, the aforementioned front liquid cooling component 3 may be adopted as follows: Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9 The structure shown is described in the following document. Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9 The front liquid cooling component 3 includes a first liquid storage pipe 31 and a first branch pipe 32.

[0068] The first liquid storage pipe 31 is located inside the housing 1 and adopts a ring structure that surrounds the outer periphery of the circuit board 21 and is connected end to end; the axis of the ring structure is parallel to the axis of the lighting cavity 111; the first liquid storage pipe 31 is used to store the heat-conducting medium.

[0069] Multiple first branch pipes 32 are arranged side by side along a straight line on the side of the circuit board 21 facing the lighting cavity 111, and the axis of each first branch pipe 32 is perpendicular to the straight line; multiple first branch pipes 32 and multiple sets of LED beads 22 are arranged alternately along a straight line, and each first branch pipe 32 is connected to the side of the circuit board 21 facing the lighting cavity 111; each first branch pipe 32 is connected to the first liquid storage pipe 31.

[0070] The heat-conducting medium in the first liquid storage pipe 31 flows through the gap between two adjacent sets of LED beads 22 via the first branch pipe 32, directly absorbing the heat generated by the LED beads 22, and circulating and dissipating heat through the annular first liquid storage pipe 31.

[0071] The staggered arrangement of the first branch pipe 32 and the LED beads 22 can ensure efficient heat dissipation while reducing light obstruction. The annular liquid storage pipeline can also ensure the stable flow path of the heat transfer medium and improve the uniformity of heat dissipation.

[0072] In some embodiments, the first branch pipe 32 described above can be adopted as follows: Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9 The structure shown is described in the following document. Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9 Along the direction of the circuit board 21 toward the lighting cavity 111, the cross-sectional width of each first branch pipe 32 gradually decreases.

[0073] The first branch tube 32, which has a gradient cross-section structure, can be close to the root area of ​​the LED bead 22 to maintain a larger contact area to enhance the heat absorption effect, and the volume is reduced at the end near the lighting cavity 111 to reduce the obstruction of light.

[0074] By adopting the above technical solution, the first branch pipe 32 can balance heat dissipation efficiency and light transmittance, avoiding the problem of light obstruction caused by traditional straight pipes.

[0075] In some embodiments, the aforementioned rear liquid cooling component 4 may be adopted as follows: Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9 The structure shown is described in the following document. Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9 The rear liquid cooling component 4 includes a second liquid storage pipe 41 and a second branch pipe 42.

[0076] The second liquid storage pipeline 41 is located inside the housing 1 and adopts an annular structure that surrounds the outer periphery of the circuit board 21 and is connected end to end; the axis of the annular structure is parallel to the axis of the lighting cavity 111; the interior of the second liquid storage pipeline 41 is used to store the heat-conducting medium.

[0077] Multiple second branch pipes 42 are arranged in parallel on the side of the circuit board 21 facing away from the lighting cavity 111, perpendicular to the straight line direction, and the axial direction of each second branch pipe 42 is parallel to the straight line direction; each second branch pipe 42 is connected to the side of the circuit board 21 facing away from the lighting cavity 111; each second branch pipe 42 is connected to the second liquid storage pipe 41.

[0078] The second branch pipe 42 covers the back area of ​​the circuit board 21 and absorbs the heat on the back of the circuit board 21 through the heat-conducting medium. The annular second liquid storage pipe 41 can realize the circulation of the heat-conducting medium and form a bidirectional clamping heat dissipation effect with the front liquid cooling component 3.

[0079] By adopting the above technical solution, both sides of the circuit board 21 can be fully covered, eliminating heat dissipation dead angles, which is especially suitable for heat dissipation requirements of high-power operation.

[0080] In some embodiments, the housing 1 may be as follows: Figures 1 to 9 The structure shown is described in the following document. Figures 1 to 9 The housing 1 includes a front housing 111 and a rear housing 121.

[0081] The lighting cavity 111 is formed on the front housing 111. The front housing 111 has a mounting groove 112 on the side facing away from the lighting cavity 111, and the mounting groove 112 is connected to the lighting cavity 111. The front housing 111 is also provided with a light-transmitting plate 113 for sealing the lighting cavity 111.

[0082] The rear housing 121 is detachably connected to the side of the front housing 111 facing away from the lighting cavity 111; the rear housing 121 has an accessory cavity 121 that is coaxially arranged with the lighting cavity 111 and communicates with the mounting groove 112, the accessory cavity 121 is used to accommodate components such as power supply components and control components; the rear housing 121 is also provided with a rear cover plate 122 for closing the accessory cavity 121.

[0083] The lighting assembly 2 is installed in the mounting groove 112, the front liquid cooling component 3 is installed on the front housing 111, and the rear liquid cooling component 4 is installed on the rear housing 121. The first liquid storage pipe 31 and the first branch pipe 32 in the front liquid cooling component 3 can be integrated into the front housing 111 and are part of the front housing 111. The second liquid storage pipe 41 and the second branch pipe 42 in the rear liquid cooling component 4 can be integrated into the rear housing 121 and are part of the rear housing 121.

[0084] The front housing 111 mainly provides a lighting channel and light transmission protection, while the rear housing 121 serves to accommodate auxiliary components. The rear housing 121 is detachably connected to the front housing 111, which facilitates the assembly and maintenance of the lamp.

[0085] By adopting the above technical solution, the lighting cavity 111 and the accessory cavity 121 can be independently isolated to avoid electromagnetic interference, and the front housing 111 and the rear housing 121 can be made of aluminum alloy to enhance the efficiency of passive heat dissipation.

[0086] In some embodiments, the housing 1 may be as follows: Figures 6 to 9 The structure shown is described in the following document. Figures 6 to 9 The housing 1 also includes a fixing component.

[0087] A fixing component is disposed between the front housing 111 and the rear housing 121 for connecting with the lighting assembly 2 to fix the position of the lighting assembly 2.

[0088] The fixing components can fix the lighting assembly 2 inside the housing 1, prevent the lighting assembly 2 from shifting due to vibration or impact, and ensure close contact between the front liquid cooling component 3 and the rear liquid cooling component 4 and the lighting assembly 2.

[0089] By adopting the above technical solutions, the structural stability of the lamps can be improved, preventing the heat dissipation efficiency from decreasing or the light from shifting due to the loosening of the lighting assembly 2, and extending the service life of the lamps.

[0090] In some embodiments, the aforementioned fixing member may be, for example, 6 to Figure 9 The structure shown is described in the following document. Figures 6 to 9 The lighting assembly 2 has multiple positioning holes 23 arranged in parallel, and the axial direction of each positioning hole 23 is parallel to the axial direction of the lighting cavity 111; the fixing component includes multiple positioning posts 51 and multiple alignment holes 52.

[0091] Multiple positioning posts 51 are arranged side by side in the mounting groove 112, and each positioning post 51 corresponds to a positioning hole 23; each positioning post 51 is suitable for insertion into the corresponding positioning hole 23.

[0092] Multiple alignment holes 52 are arranged side by side on the rear housing 121, and the multiple alignment holes 52 correspond one-to-one with multiple positioning posts 51; each positioning post 51 is suitable for insertion into the corresponding alignment hole 52.

[0093] Each positioning post 51 is fitted with a compression spring 53, with both ends of the compression spring 53 connected to the mounting groove 112 and the rear housing 121, respectively. When the front housing 111 and the rear housing 121 are connected, the compression spring 53 is in an elastic compressed state.

[0094] The positioning post 51, positioning hole 23, and alignment hole 52 work together to achieve precise positioning of circuit board 21. Compression spring 53 provides axial preload to ensure tight fit between circuit board 21 and front liquid cooling component 3, and maintains high heat conduction efficiency.

[0095] In some embodiments, the housing 1 may be as follows: Figures 1 to 9 The structure shown is described in the following document. Figures 1 to 9 Both the front housing 111 and the rear housing 121 have multiple first heat dissipation fins 6 arranged at intervals along their circumference; the rear cover plate 122 has multiple second heat dissipation fins 7 arranged side by side on the side facing away from the accessory cavity 121.

[0096] The first heat dissipation fin 6 and the second heat dissipation fin 7 can increase the contact area between the front shell 111 and the rear shell 121 and the air, and dissipate heat from the heat-conducting medium in the first liquid storage pipe 31 and the second liquid storage pipe 41 through natural convection, forming a composite heat dissipation system of passive heat dissipation and active heat dissipation.

[0097] By adopting the above technical solutions, passive heat dissipation capabilities can be enhanced, which is especially suitable for redundant protection in high-temperature environments or when liquid cooling systems fail, thereby improving the reliability of luminaires.

[0098] In some embodiments, the housing 1 may be as follows: Figure 5 , Figure 6 , Figure 8 and Figure 9 The structure shown is described in the following document. Figure 5 , Figure 6 , Figure 8 and Figure 9 A sealing gasket 8 is provided between the front housing 111 and the rear housing 121, and between the rear housing 121 and the rear cover plate 122.

[0099] Gasket 8 fills the connection gaps, preventing external dust, moisture, or corrosive gases from entering the internal cavity, protecting the liquid cooling system and electronic components. Gasket 8 also improves the IP protection rating of the luminaire, making it suitable for outdoor or humid environments and extending the lifespan of internal components.

[0100] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A liquid-cooled luminaire, characterized in that, include: The housing has an illumination cavity; An illumination assembly, disposed within the housing, is used to generate light directed toward the illumination cavity; as well as A front liquid cooling component is disposed within the housing and is located on the side of the lighting assembly facing the lighting cavity; the front liquid cooling component is used to connect with the lighting assembly to reduce the temperature of the side of the lighting assembly facing the lighting cavity; as well as A rear liquid cooling component is disposed within the housing and is located on the side of the lighting assembly facing away from the lighting cavity; the rear liquid cooling component is used to connect with the lighting assembly to reduce the temperature of the side of the lighting assembly facing away from the lighting cavity.

2. The liquid-cooled lamp as described in claim 1, characterized in that, The lighting assembly includes: A circuit board is disposed within the housing, and the thickness direction of the circuit board is parallel to the axial direction of the illumination cavity; and Multiple groups of LED beads are arranged side by side along a straight line on the side of the circuit board facing the lighting cavity, and each group of LED beads includes multiple LED beads arranged side by side along a direction perpendicular to the straight line; each LED bead is facing the lighting cavity.

3. The liquid-cooled lamp as described in claim 2, characterized in that, The front liquid cooling component includes: A first liquid storage pipeline is disposed within the housing and adopts a ring structure that surrounds the outer periphery of the circuit board and is connected end to end; the axial direction of the ring structure is parallel to the axial direction of the lighting cavity; the interior of the first liquid storage pipeline is used to store a heat-conducting medium; and Multiple first branch pipes are arranged side by side along the straight line on the side of the circuit board facing the lighting cavity, and the axial direction of each first branch pipe is perpendicular to the straight line; the multiple first branch pipes and multiple sets of LED beads are arranged alternately along the straight line, and each first branch pipe is connected to the side of the circuit board facing the lighting cavity; each first branch pipe is connected to the first liquid storage pipeline.

4. The liquid-cooled lamp as described in claim 3, characterized in that, Along the direction from the circuit board toward the lighting cavity, the cross-sectional width of each of the first branch tubes gradually decreases.

5. The liquid-cooled lamp as described in claim 2, characterized in that, The post-liquid cooling component includes: A second liquid storage pipeline is disposed within the housing and adopts a ring structure that surrounds the outer periphery of the circuit board and is connected end to end; the axial direction of the ring structure is parallel to the axial direction of the lighting cavity; the interior of the second liquid storage pipeline is used to store a heat-conducting medium; and Multiple second branch pipes are arranged in parallel on the side of the circuit board facing away from the lighting cavity, perpendicular to the straight line direction, and the axial direction of each second branch pipe is parallel to the straight line direction; each second branch pipe is connected to the side of the circuit board facing away from the lighting cavity; each second branch pipe is connected to the second liquid storage pipeline.

6. The liquid-cooled lamp as described in claim 1, characterized in that, The housing includes: Front housing; the lighting cavity is formed on the front housing, and a mounting groove is formed on the side of the front housing facing away from the lighting cavity, and the mounting groove communicates with the lighting cavity; the front housing is also provided with a light-transmitting plate for sealing the lighting cavity; The rear housing is detachably connected to the side of the front housing facing away from the lighting cavity; the rear housing has an accessory cavity coaxially arranged with the lighting cavity and communicating with the mounting groove, the accessory cavity being used to accommodate power supply components and control components; the rear housing is also provided with a rear cover plate for closing the accessory cavity; The lighting assembly is disposed in the mounting groove, the front liquid cooling component is disposed on the front housing, and the rear liquid cooling component is disposed on the rear housing.

7. The liquid-cooled lamp as described in claim 6, characterized in that, The housing also includes: A fixing component is disposed between the front housing and the rear housing for connecting with the lighting assembly to fix the position of the lighting assembly.

8. The liquid-cooled luminaire as described in claim 7, characterized in that, The lighting assembly has multiple positioning holes arranged in parallel, and the axis of each positioning hole is parallel to the axis of the lighting cavity; the fixing component includes: Multiple positioning posts are arranged side-by-side within the mounting groove, and each positioning post corresponds one-to-one with a plurality of positioning holes; each positioning post is adapted to be inserted into its corresponding positioning hole; and Multiple alignment holes are arranged side by side on the rear housing, and each of the multiple alignment holes corresponds to a multiple of the positioning pins; each of the positioning pins is adapted to be inserted into the corresponding alignment hole. Each of the positioning posts is fitted with a compression spring, and the two ends of the compression spring are respectively connected to the mounting groove and the rear housing.

9. The liquid-cooled lamp as described in claim 6, characterized in that, Both the front housing and the rear housing have multiple first heat dissipation fins spaced apart along their circumference; the rear cover plate has multiple second heat dissipation fins arranged side by side on the side facing away from the accessory cavity.

10. The liquid-cooled luminaire as described in claim 6, characterized in that, A sealing gasket is provided between the front housing and the rear housing, and between the rear housing and the rear cover plate.

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